F
SECTION F — MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
 F01 - 
F04
Subsection index
MACHINES
positive displacement
rotary or oscillating piston
liquid and elastic fluid or elastic fluidF01C
liquid onlyF04C
reciprocating piston or other
liquid and elastic fluid or elastic fluidF01B
liquid onlyF04B
non-positive displacement
liquid and elastic fluid or elastic fluidF01D
liquid onlyF03B
ENGINES
positive displacement
rotary or oscillating piston
liquid and elastic fluid or elastic fluidF01C
liquid onlyF03C
reciprocating piston or other
liquid and elastic fluid or elastic fluidF01B
liquid onlyF03C
non-positive displacement
liquid and elastic fluid or elastic fluidF01D
liquid onlyF03B
PUMPS
positive displacement
rotary or oscillating pistonF04C
reciprocating piston or otherF04B
non-positive displacementF04D
  
ENGINEERING IN GENERAL
 F16
ENGINEERING ELEMENTS OR UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
 F16D
COUPLINGS FOR TRANSMITTING ROTATION; CLUTCHES; BRAKES  [2]
 F16D

Note(s)

Attention is drawn to the following places:
A01D 69/08A01D 69/10Clutches or brakes of harvesters or mowers for grass or cereals 
A61C 1/18Clutches in dental machines for boring or cutting 
B21B 35/14Drive couplings for metal-rolling mills 
B30B 15/10Brakes specially adapted for presses 
B30B 15/12Clutches specially adapted for presses 
B41J 33/52Braking devices for ribbon-feed devices in selective printing mechanisms 
B60K 17/00Arrangement or location of clutches in vehicles 
B61HBrakes peculiar to rail vehicles 
B62B 5/04Braking mechanisms for hand carts 
B62B 9/08Braking mechanisms for children's carriages or perambulators 
B62C 7/00Braking mechanisms for animal-drawn vehicles 
B62LCycle brakes 
B66D 5/00Braking devices for lifting or hoisting gear 
E21B 17/02Couplings for drilling rods 
H02P 3/04Brakes for electric motors, generators, dynamo-electric converters 
H04L 13/04Clutches for apparatus for transmission of coded digital information. 

 F16D
Subclass index
COUPLINGS
In general 1/00
Yielding; impulse; slip 3/00; 5/00; 7/00
With safety members 9/00
Using a fluid as power-transmitting means 31/00, 33/00, 39/00
CLUTCHES
Mechanically actuated
the members being in direct contact 11/00, 13/00, 17/00
with separate members 15/00
others; combinations 19/00; 21/00
details 23/00
Non-mechanically actuated
by fluid 25/00, 29/00
magnetically actuated 27/00, 29/00
electrically actuated 28/00, 29/00
Using a fluid as power-transmitting means 31/00 - 37/00
Freewheels, automatic 41/00, 43/00, 45/00
Combinations 45/00, 47/00
External control of clutches 48/00
FREEWHEELS OR FREEWHEEL CLUTCHES 41/00, 45/00
BRAKES
Characterised by their function 49/00 - 55/00
Using resistance of liquid or air 57/00
Automatic 59/00
With means for making available for use the energy absorbed 61/00
Others 63/00
Details 65/00, 69/00, 71/00
Monitoring working conditions 66/00
COMBINATIONS OF DIFFERENT DEVICES 47/00, 67/00
 F16D 1/00 - 
F16D 9/00
Couplings (fluid couplings F16D 31/00-F16D 39/00; couplings or joints specially adapted for deep-drilling rods or sucker rods E21B; for transmitting motion through a wall without relatively-moving surfaces F16J 15/50)
P:260 F16D 1/00
Couplings for rigidly connecting two coaxial shafts or other movable machine elements (attachment of wheels to axles for railway carriages B60B; for attachment of cranks to their shafts F16C 3/10)
 F16D 1/02
·  for connecting two abutting shafts or the like
 F16D 1/027
·  ·  non-disconnectable, e.g. involving gluing, welding or the like  [6]
 F16D 1/033
·  ·  by clamping together two faces perpendicular to the axis of rotation, e.g. with bolted flanges  [6]
 F16D 1/04
·  ·  with clamping hub; with hub and longitudinal key
 F16D 1/05
·  ·  ·  with radial clamping due to axial loading of at least one pair of conical surfaces  [5]
 F16D 1/06
·  for attachment of a member on a shaft or on a shaft-end (attachment of marine propellers on shafts B63H 23/34)
 F16D 1/064
·  ·  non-disconnectable  [6]
 F16D 1/068
·  ·  ·  involving gluing, welding or the like  [6]
 F16D 1/072
·  ·  ·  involving plastic deformation (plastic welding F16D 1/068)  [6]
 F16D 1/076
·  ·  by clamping together two faces perpendicular to the axis of rotation, e.g. with bolted flanges  [6]
 F16D 1/08
·  ·  with clamping hub; with hub and longitudinal key
 F16D 1/09
·  ·  ·  with radial clamping due to axial loading of at least one pair of conical surfaces  [5]
 F16D 1/091
·  ·  ·  ·  and comprising a chamber including a tapered piston moved axially by fluid pressure to effect clamping  [8]
 F16D 1/092
·  ·  ·  ·  the pair of conical mating surfaces being provided on the coupled hub and shaft  [8]
 F16D 1/093
·  ·  ·  ·  using one or more elastic or segmented conical rings forming at least one of the conical surfaces, the rings being expanded or contracted to effect clamping (F16D 1/091 takes precedence)  [8]
 F16D 1/094
·  ·  ·  ·  ·  using one or more pairs of elastic or segmented rings with mutually mating conical surfaces, one of the mating rings being contracted and the other being expanded  [8]
 F16D 1/095
·  ·  ·  ·  ·  with clamping effected by ring contraction only  [8]
 F16D 1/096
·  ·  ·  ·  ·  ·  the ring or rings being located between the shaft and the hub  [8]
 F16D 1/097
·  ·  ·  ·  ·  with clamping effected by ring expansion only, e.g. with an expanded ring located between hub and shaft  [8]
 F16D 1/10
·  Quick-acting couplings in which the parts are connected by simply bringing them together axially
 F16D 1/104
·  ·  having retaining means rotating with the coupling and acting only by friction  [6]
 F16D 1/108
·  ·  having retaining means rotating with the coupling and acting by interengaging parts, i.e. positive coupling  [6]
 F16D 1/112
·  ·  ·  the interengaging parts comprising torque-transmitting surfaces, e.g. bayonet joints  [6]
 F16D 1/116
·  ·  ·  the interengaging parts including a continuous or interrupted circumferential groove in the surface of one of the coupling parts (circlips for retaining hubs on shafts F16B 21/18)  [6]
 F16D 1/12
·  allowing adjustment of the parts about the axis (during motion F16D 3/10)
P:250 F16D 3/00
Yielding couplings, i.e. with means permitting movement between the connected parts during the drive (couplings disconnectable simply by axial movement F16D 1/10; slip couplings F16D 7/00)
 F16D 3/02
·  adapted to specific functions (universal joints, see the appropriate groups)
 F16D 3/04
·  ·  specially adapted to allow radial displacement, e.g. Oldham couplings
 F16D 3/06
·  ·  specially adapted to allow axial displacement
 F16D 3/08
·  ·  Couplings for intersecting shafts, provided with intermediate bars bent in an angle corresponding with the angle of intersection
 F16D 3/10
·  ·  Couplings with means for varying the angular relationship of two coaxial shafts during motion
 F16D 3/12
·  ·  specially adapted for accumulation of energy to absorb shocks or vibration (by making use of fluid elements F16D 3/80)
 F16D 3/14
·  ·  combined with a friction coupling for damping vibration or absorbing shock
 F16D 3/16
·  Universal joints in which flexibility is produced by means of pivots or sliding or rolling connecting parts
 F16D 3/18
·  ·  the coupling parts having slidably-interengaging teeth
 F16D 3/18

Note(s)

In this group, the following expression is used with the meaning indicated:

  • "coupling parts" means the driving member and the driven member of the coupling, which are mounted on, and rotate as a unit with, the shafts or their equivalents between which the coupling is placed. An intermediate member interconnecting these parts is regarded as such an equivalent.  [4]

 F16D 3/19
·  ·  ·  of resilient material or structure
 F16D 3/20
·  ·  one coupling part entering a sleeve of the other coupling part and connected thereto by sliding or rolling members (F16D 3/18, F16D 3/24 take precedence)  [4,5]
 F16D 3/202
·  ·  ·  one coupling part having radially projecting pins, e.g. tripod joints  [5]
 F16D 3/205
·  ·  ·  ·  the pins extending radially outwardly from the coupling part  [5]
 F16D 3/207
·  ·  ·  ·  the pins extending radially inwardly from the coupling part  [5]
 F16D 3/22
·  ·  ·  the rolling members being balls, rollers, or the like, guided in grooves or sockets in both coupling parts  [3,5]
 F16D 3/221
·  ·  ·  ·  the rolling members being located in sockets in one of the coupling parts  [5]
 F16D 3/223
·  ·  ·  ·  the rolling members being guided in grooves in both coupling parts, e.g. Rzeppa joints  [5]
 F16D 3/224
·  ·  ·  ·  ·  the groove centre-lines on each coupling part lying on a sphere  [5]
 F16D 3/226
·  ·  ·  ·  ·  the groove centre-lines in each coupling part lying on a cylinder co-axial with the respective coupling part  [5]
 F16D 3/227
·  ·  ·  ·  ·  ·  the joints being telescopic  [5]
 F16D 3/229
·  ·  ·  ·  ·  Prismatic coupling parts having each groove centre-line lying on planes parallel to the axis of the respective coupling part (F16D 3/224, F16D 3/226 take precedence)  [5]
 F16D 3/24
·  ·  comprising balls, rollers, or the like, between overlapping driving faces, e.g. cogs, on both coupling parts  [3,5]
 F16D 3/26
·  ·  Hooke's joints or other joints with an equivalent intermediate member to which each coupling part is pivotally or slideably connected (F16D 3/18, F16D 3/20 take precedence)
 F16D 3/27
·  ·  ·  with two or more intermediate members pivotally or slidably connected together, e.g. tongue-and-slipper type joints  [5]
 F16D 3/28
·  ·  ·  in which the interconnecting pivots include elastic members
 F16D 3/30
·  ·  ·  in which the coupling is specially adapted to constant velocity-ratio
 F16D 3/32
·  ·  ·  ·  by the provision of two intermediate members each having two relatively- perpendicular trunnions or bearings
 F16D 3/33
·  ·  ·  ·  ·  with ball or roller bearings
 F16D 3/34
·  ·  ·  ·  parts being connected by ridges, pins, balls, or the like guided in grooves or between cogs
 F16D 3/36
·  ·  ·  in which each pivot between the coupling parts and the intermediate member comprises a single ball
 F16D 3/38
·  ·  ·  with a single intermediate member with trunnions or bearings arranged on two axes perpendicular to one another (F16D 3/36 takes precedence)
 F16D 3/40
·  ·  ·  ·  with intermediate member provided with two pairs of outwardly-directed trunnions on intersecting axes
 F16D 3/41
·  ·  ·  ·  ·  with ball or roller bearings
 F16D 3/42
·  ·  ·  ·  with ring-shaped intermediate member provided with bearings or inwardly-directed trunnions
 F16D 3/43
·  ·  ·  ·  ·  with ball or roller bearings
 F16D 3/44
·  ·  ·  the intermediate member being connected to the coupling parts by ridges, pins, balls, or the like guided in grooves or between cogs
 F16D 3/46
·  ·  ·  ·  each coupling part embracing grooves or ridges on the intermediate member
 F16D 3/48
·  ·  one coupling part having pins arranged parallel to the axis and entering holes in the other coupling part
 F16D 3/50
·  with the coupling parts connected by one or more intermediate members (F16D 3/16 takes precedence)
 F16D 3/52
·  ·  comprising a continuous strip, spring, or the like engaging the coupling parts at a number of places
 F16D 3/54
·  ·  Couplings comprising a chain or strip surrounding two wheels arranged side by side and provided with teeth or the equivalent
 F16D 3/56
·  ·  comprising elastic metal lamellae, elastic rods, or the like, e.g. arranged radially or parallel to the axis, the members being shear-loaded collectively by the total load
 F16D 3/58
·  ·  ·  the intermediate members being made of rubber or like material
 F16D 3/60
·  ·  comprising pushing or pulling links attached to both parts (F16D 3/64 takes precedence)
 F16D 3/62
·  ·  ·  the links or their attachments being elastic
 F16D 3/64
·  ·  comprising elastic elements arranged between substantially-radial walls of both coupling parts
 F16D 3/66
·  ·  ·  the elements being metallic, e.g. in the form of coils
 F16D 3/68
·  ·  ·  the elements being made of rubber or similar material
 F16D 3/70
·  ·  comprising elastic elements arranged in holes in one coupling part and surrounding pins on the other coupling part
 F16D 3/72
·  ·  with axially-spaced attachments to the coupling parts (F16D 3/56 takes precedence)
 F16D 3/74
·  ·  ·  the intermediate member or members being made of rubber or other flexible material
 F16D 3/76
·  ·  shaped as an elastic ring centered on the axis, surrounding a portion of one coupling part and surrounded by a sleeve of the other coupling part
 F16D 3/77
·  ·  ·  the ring being metallic
 F16D 3/78
·  ·  shaped as an elastic disc or flat ring, arranged perpendicular to the axis of the coupling parts, different sets of spots of the disc or ring being attached to each coupling part, e.g. Hardy couplings
 F16D 3/79
·  ·  ·  the disc or ring being metallic
 F16D 3/80
·  in which a fluid is used (fluid couplings allowing continuous slip F16D 31/00-F16D 35/00)
 F16D 3/82
·  ·  with a coupling element in the form of a pneumatic tube (similar clutches F16D 25/04)
 F16D 3/84
·  Shrouds, e.g. casings, covers; Sealing means specially adapted therefor
P:230 F16D 5/00
Impulse couplings, i.e. couplings that alternately accelerate and decelerate the driven member
P:240 F16D 7/00
Slip couplings, e.g. slipping on overload, for absorbing shock (combined with yielding shaft couplings F16D 3/14; fluid slip couplings F16D 31/00-F16D 35/00)
 F16D 7/02
·  of the friction type (couplings in which overload initiates a decrease of coupling pressure or a disconnection, see the relevant groups for clutches)
 F16D 7/04
·  of the ratchet type (similar gearings based on repeated accumulation and delivery of inertia-energy F16H 33/08)
 F16D 7/06
·  ·  with intermediate balls or rollers
 F16D 7/08
·  ·  ·  moving axially between engagement and disengagement  [5]
 F16D 7/10
·  ·  ·  moving radially between engagement and disengagement  [5]
P:220 F16D 9/00
Couplings with safety member for disconnecting
 F16D 9/02
·  by thermal means, e.g. melting member  [6]
 F16D 9/04
·  by tensile breaking  [6]
 F16D 9/06
·  by breaking due to shear stress  [6]
 F16D 9/08
·  ·  over a single area encircling the axis of rotation, e.g. shear necks on shafts (F16D 9/10 takes precedence)  [6]
 F16D 9/10
·  ·  having a part movable after disconnection so as to provide reconnection, e.g. advanceable shear pins  [6]
 F16D 11/00 - 
F16D 23/00
Clutches with mechanically-actuated clutching members (automatic clutches F16D 41/00-F16D 45/00; external control F16D 48/00)
P:180 F16D 11/00
Clutches in which the members have interengaging parts (arrangements for synchronisation F16D 23/02)
 F16D 11/02
·  disengaged by a contact of a part mounted on the clutch with a stationarily-mounted member
 F16D 11/04
·  ·  with clutching members movable only axially
 F16D 11/06
·  ·  with clutching members movable otherwise than only axially, e.g. rotatable keys
 F16D 11/08
·  actuated by moving a non-rotating part axially (actuating-mechanisms in the relevant groups)
 F16D 11/10
·  ·  with clutching members movable only axially
 F16D 11/12
·  ·  with clutching members movable otherwise than only axially
 F16D 11/14
·  with clutching members movable only axially (F16D 11/02, F16D 11/08 take precedence)  [5]
 F16D 11/16
·  with clutching members movable otherwise than only axially (F16D 11/02, F16D 11/08 take precedence)  [5]
P:190 F16D 13/00
Friction clutches (arrangements for synchronisation F16D 23/02)
 F16D 13/02
·  disengaged by the contact of a part mounted on the clutch with a stationarily-mounted member
 F16D 13/04
·  with means for actuating or keeping engaged by a force derived at least partially from one of the shafts to be connected (automatic clutches F16D 43/00)
 F16D 13/06
·  ·  with clutching members movable otherwise than only axially (F16D 13/08, F16D 13/12 take precedence)
 F16D 13/08
·  with a helical band or equivalent member, which may be built-up from linked parts, with more than one turn embracing a drum or the like, with or without an additional clutch actuating the end of the band (F16D 13/02 takes precedence; similar freewheel clutches F16D 41/20; similar brakes F16D 49/02)
 F16D 13/10
·  with clutching members co-operating with the periphery of a drum, a wheel-rim, or the like (F16D 13/02-F16D 13/08 take precedence; similar brakes F16D 49/00)
 F16D 13/12
·  with an expansible band or coil co-operating with the inner surface of a drum or the like (F16D 13/02 takes precedence; similar brakes F16D 51/02)
 F16D 13/14
·  with outwardly-movable clutching members co-operating with the inner surface of a drum or the like (F16D 13/02, F16D 13/06, F16D 13/12 take precedence; similar brakes F16D 51/00)
 F16D 13/16
·  ·  shaped as radially-movable segments
 F16D 13/18
·  ·  shaped as linked or separately-pivoted segments
 F16D 13/20
·  with clutching members co-operating with both the periphery and the inner surface of a drum or wheel-rim (similar brakes F16D 53/00)
 F16D 13/22
·  with axially-movable clutching members (similar brakes F16D 55/00)
 F16D 13/24
·  ·  with conical friction surfaces
 F16D 13/26
·  ·  ·  in which the or each axially-movable member is pressed exclusively against an axially-located member
 F16D 13/28
·  ·  ·  ·  with means for increasing the effective force between the actuating sleeve or equivalent member and the pressure member
 F16D 13/30
·  ·  ·  ·  ·  in which the clutching pressure is produced by springs only
 F16D 13/32
·  ·  ·  in which two or more axially-movable members are pressed from one side towards an axially-located member
 F16D 13/34
·  ·  ·  ·  with means for increasing the effective force between the actuating sleeve or equivalent member and the pressure member
 F16D 13/36
·  ·  ·  ·  ·  in which the clutching pressure is produced by springs only
 F16D 13/38
·  ·  with flat clutching surfaces, e.g. discs
 F16D 13/40
·  ·  ·  in which the or each axially-movable member is pressed exclusively against an axially-located member
 F16D 13/42
·  ·  ·  ·  with means for increasing the effective force between the actuating sleeve or equivalent member and the pressure member
 F16D 13/44
·  ·  ·  ·  ·  in which the clutching pressure is produced by springs only
 F16D 13/46
·  ·  ·  in which two axially-movable members, of which one is attached to the driving side and the other to the driven side, are pressed from one side towards an axially-located member
 F16D 13/48
·  ·  ·  ·  with means for increasing the effective force between the actuating sleeve or equivalent member and the pressure member
 F16D 13/50
·  ·  ·  ·  ·  in which the clutching pressure is produced by springs only
 F16D 13/52
·  ·  ·  Clutches with multiple lamellae
 F16D 13/54
·  ·  ·  ·  with means for increasing the effective force between the actuating sleeve or equivalent member and the pressure member
 F16D 13/56
·  ·  ·  ·  ·  in which the clutching pressure is produced by springs only
 F16D 13/58
·  Details
 F16D 13/60
·  ·  Clutching elements (friction lining or attachment thereof F16D 69/00)
 F16D 13/62
·  ·  ·  Clutch-bands; Clutch-shoes; Clutch-drums (brake-bands, brake-shoes, brake-drums F16D 65/00)
 F16D 13/64
·  ·  ·  Clutch-plates; Clutch-lamellae (brake-plates, brake-lamellae F16D 65/12)
 F16D 13/66
·  ·  ·  ·  of conical shape
 F16D 13/68
·  ·  ·  ·  Attachments of plates or lamellae to their supports
 F16D 13/69
·  ·  ·  ·  Arrangements for spreading lamellae in released state
 F16D 13/70
·  ·  Pressure members, e.g. pressure plates, for clutch-plates or lamellae; Guiding arrangements for pressure members
 F16D 13/71
·  ·  ·  in which the clutching pressure is produced by springs only
 F16D 13/72
·  ·  Features relating to cooling
 F16D 13/74
·  ·  Features relating to lubrication
 F16D 13/75
·  ·  Features relating to adjustment, e.g. slack adjusters
 F16D 13/76
·  specially adapted to incorporate with other transmission parts, i.e. at least one of the clutch parts also having another function, e.g. being the disc of a pulley
P:160 F16D 15/00
Clutches with wedging balls or rollers or with other wedgeable separate clutching members (freewheels, freewheel clutches F16D 41/00)
P:170 F16D 17/00
Clutches in which the drive is transmitted solely by virtue of the eccentricity of the contacting surfaces of clutch members which fit one around the other
P:200 F16D 19/00
Clutches with mechanically-actuated clutching members not otherwise provided for
P:150 F16D 21/00
Systems comprising a plurality of mechanically-actuated clutches (for synchronisation F16D 23/04)
 F16D 21/02
·  for interconnecting three or more shafts or other transmission members in different ways (in endless-track vehicles B62D)
 F16D 21/04
·  ·  with a shaft carrying a number of rotatable transmission members, e.g. gears, each of which can be connected to the shaft by a clutching member or members between the shaft and the hub of the transmission member
 F16D 21/06
·  ·  at least two driving shafts or two driven shafts being concentric
 F16D 21/08
·  Serially-arranged clutches interconnecting two shafts only when all the clutches are engaged (F16D 13/08, F16D 13/12 take precedence)
P:210 F16D 23/00
Details of mechanically-actuated clutches not specific for one distinct type
 F16D 23/02
·  Arrangements for synchronisation, also for power-operated clutches (shape or mounting of interengaging parts of clutch members to facilitate engagement F16D 11/08)
 F16D 23/04
·  ·  with an additional friction cluch
 F16D 23/06
·  ·  ·  and a blocking mechanism preventing the engagement of the main clutch prior to synchronisation
 F16D 23/08
·  ·  with a blocking mechanism that only releases the clutching member on synchronisation (in combination with an additional friction clutch F16D 23/06)
 F16D 23/10
·  ·  automatically producing the engagement of the clutch when the clutch members are moving at the same speed; Indicating synchronisation
 F16D 23/12
·  Mechanical clutch-actuating mechanisms arranged outside the clutch as such (specific for combined clutches F16D 21/00; mechanisms specific for synchronisation F16D 23/02)
 F16D 23/14
·  ·  Clutch-actuating sleeves; Actuating members directly connected to clutch-actuating sleeves
 F16D 25/00 - 
F16D 29/00
Clutches actuated non-mechanically (arrangements for synchronisation F16D 23/02; fluid clutches F16D 31/00-F16D 39/00; automatic clutches F16D 41/00-F16D 45/00; external control F16D 48/00; dynamo-electric clutches H02K 49/00; clutches using electrostatic attraction H02N 13/00)  [3]
P:120 F16D 25/00
Fluid-actuated clutches
 F16D 25/02
·  with means for actuating or keeping engaged by a force derived at least partially from one of the shafts to be connected
 F16D 25/04
·  in which the fluid actuates an elastic clutching member, e.g. a diaphragm or a pneumatic tube (F16D 25/02 takes precedence; coupling using a pneumatic tube F16D 3/82)
 F16D 25/06
·  in which the fluid actuates a piston incorporated in the clutch (F16D 25/02 takes precedence)
 F16D 25/061
·  ·  the clutch having interengaging clutch members
 F16D 25/062
·  ·  the clutch having friction surfaces
 F16D 25/063
·  ·  ·  with clutch members exclusively moving axially
 F16D 25/0632
·  ·  ·  ·  with conical friction surfaces, e.g. cone clutches  [5]
 F16D 25/0635
·  ·  ·  ·  with flat friction surfaces, e.g. discs  [5]
 F16D 25/0638
·  ·  ·  ·  ·  with more than two discs, e.g. multiple lamellae  [5]
 F16D 25/064
·  ·  ·  ·  the friction surface being grooved
 F16D 25/065
·  ·  ·  with clutching members having a movement which has at least a radial component
 F16D 25/08
·  with fluid-actuated member not rotating with a clutching member (F16D 25/02 takes precedence)
 F16D 25/10
·  Clutch systems with a plurality of fluid-actuated clutches (arrangements or mounting of clutches in vehicles B60K 17/00)
 F16D 25/12
·  Details not specific to one of the before-mentioned types
P:130 F16D 27/00
Magnetically-actuated clutches; Control or electric circuits therefor (clutches with magnetisable particles F16D 37/02; circuits for external control F16D 48/00)  [2]
 F16D 27/01
·  with permanent magnets
 F16D 27/02
·  with electromagnets incorporated in the clutch, i.e. with collecting rings
 F16D 27/04
·  ·  with axially-movable friction surfaces
 F16D 27/06
·  ·  ·  with friction surfaces arranged within the flux
 F16D 27/07
·  ·  ·  ·  Constructional features of clutch-plates or clutch-lamellae
 F16D 27/08
·  ·  ·  with friction surfaces arranged externally to the flux
 F16D 27/09
·  ·  and with interengaging jaws or gear-teeth
 F16D 27/10
·  with an electromagnet not rotating with a clutching member, i.e. without collecting rings
 F16D 27/102
·  ·  with radially movable clutching members (F16D 27/105 takes precedence)  [5]
 F16D 27/105
·  ·  with a helical band or equivalent member co-operating with a cylindrical coupling surface  [5]
 F16D 27/108
·  ·  with axially movable clutching members  [5]
 F16D 27/11
·  ·  ·  with conical friction surfaces, e.g. cone clutches  [5]
 F16D 27/112
·  ·  ·  with flat friction surfaces, e.g. discs  [5]
 F16D 27/115
·  ·  ·  ·  with more than two discs, e.g. multiple lamellae  [5]
 F16D 27/118
·  ·  with interengaging jaws or gear teeth  [5]
 F16D 27/12
·  Clutch systems with a plurality of electromagnetically-actuated clutches
 F16D 27/14
·  Details
P:140 F16D 28/00
Electrically-actuated clutches (clutches actuated directly by means of an electromagnet F16D 27/00)  [6]
P:110 F16D 29/00
Clutches or systems of clutches involving both fluid and magnetic or both fluid and electric actuation  [6]
 F16D 31/00 - 
F16D 39/00
Couplings or clutches with a fluid or semifluid as power-transmitting means (fluid gearing F16H 39/00-F16H 49/00)
P:60 F16D 31/00
Fluid couplings or clutches with pumping sets of the volumetric type, i.e. in the case of liquid passing a predetermined volume per revolution
 F16D 31/02
·  using pumps with pistons or plungers working in cylinders
 F16D 31/04
·  using gear-pumps
 F16D 31/06
·  using pumps of types differing from those before-mentioned
 F16D 31/08
·  Control of slip
P:70 F16D 33/00
Rotary fluid couplings or clutches of the hydrokinetic type
 F16D 33/02
·  controlled by changing the flow of the liquid in the working circuit, while maintaining a completely filled working circuit
 F16D 33/04
·  ·  by altering the position of blades
 F16D 33/06
·  controlled by changing the amount of liquid in the working circuit
 F16D 33/08
·  ·  by devices incorporated in the fluid coupling, with or without remote control
 F16D 33/10
·  ·  ·  consisting of controllable supply and discharge openings
 F16D 33/12
·  ·  ·  ·  controlled automatically by self-actuated valves
 F16D 33/14
·  ·  ·  consisting of shiftable or adjustable scoops
 F16D 33/16
·  ·  by means arranged externally of the coupling or clutch (mounting of such means in vehicles B60K 23/00, e.g. B60K 23/02)
 F16D 33/18
·  Details (applicable also to fluid gearing F16H 41/24)
 F16D 33/20
·  ·  Shape of wheels, blades, or channels with respect to function
P:50 F16D 35/00
Fluid clutches in which the clutching is predominantly obtained by fluid adhesion (F16D 37/00 takes precedence)
 F16D 35/02
·  with rotary working chambers and rotary reservoirs, e.g. in one coupling part  [5]
P:40 F16D 37/00
Clutches in which the drive is transmitted through a medium consisting of small particles, e.g. centrifugally speed-responsive
 F16D 37/02
·  the particles being magnetisable
P:30 F16D 39/00
Combinations of couplings according to two or more of the groups F16D 31/00-F16D 37/00
 F16D 41/00 - 
F16D 45/00
Freewheels or freewheel clutches; Automatic clutches (F16D 31/00-F16D 39/00 take precedence)
P:100 F16D 41/00
Freewheels or freewheel clutches (cycle brakes controlled by back-pedalling B62L 5/00)
 F16D 41/02
·  disengaged by contact of a part of or on the freewheel or freewheel clutch with a stationarily-mounted member
 F16D 41/04
·  combined with a clutch for locking the driving and driven members (F16D 41/02, F16D 41/24 take precedence)
 F16D 41/06
·  with intermediate wedging coupling members between an inner and an outer surface (F16D 41/02, F16D 41/24 take precedence)
 F16D 41/061
·  ·  the intermediate members wedging by movement having an axial component  [6]
 F16D 41/063
·  ·  the intermediate members wedging by moving along the inner and the outer surface without pivoting or rolling, e.g. sliding wedges (F16D 41/061 takes precedence)  [6]
 F16D 41/064
·  ·  the intermediate members wedging by rolling and having a circular cross-section, e.g. balls (F16D 41/061 takes precedence)  [6]
 F16D 41/066
·  ·  ·  all members having the same size and only one of the two surfaces being cylindrical  [6]
 F16D 41/067
·  ·  ·  ·  and the members being distributed by a separate cage encircling the axis of rotation  [6]
 F16D 41/069
·  ·  the intermediate members wedging by pivoting or rocking, e.g. sprags (F16D 41/061 takes precedence)  [6]
 F16D 41/07
·  ·  ·  between two cylindrical surfaces  [6]
 F16D 41/08
·  ·  with provision for altering the freewheeling action
 F16D 41/10
·  ·  ·  with self-actuated reversing
 F16D 41/12
·  with hinged pawl co-operating with teeth, cogs, or the like (F16D 41/02, F16D 41/24 take precedence)
 F16D 41/14
·  ·  the effective stroke of the pawl being adjustable
 F16D 41/16
·  ·  the action being reversible
 F16D 41/18
·  with non-hinged detent (F16D 41/02, F16D 41/24 take precedence)
 F16D 41/20
·  with expandable or contractable clamping ring or band (F16D 41/02, F16D 41/24 take precedence)
 F16D 41/22
·  with clutching ring or disc axially shifted as a result of lost motion between actuating members (F16D 41/02, F16D 41/24 take precedence)
 F16D 41/24
·  specially adapted for cycles
 F16D 41/26
·  ·  with provision for altering the action
 F16D 41/28
·  ·  with intermediate wedging coupling members
 F16D 41/30
·  ·  with hinged pawl co-operating with teeth, cogs, or the like
 F16D 41/32
·  ·  with non-hinged detent
 F16D 41/34
·  ·  with expandable or contractable clamping ring or band
 F16D 41/36
·  ·  with clutching ring or disc axially shifted as a result of lost motion between actuating members
P:90 F16D 43/00
Internally controlled automatic clutches (varying the relationship between two coaxial shafts F16D 3/10; freewheels, freewheel clutches F16D 41/00; external control of clutches F16D 48/00)  [6]
 F16D 43/02
·  actuated entirely mechanically
 F16D 43/04
·  ·  controlled by angular speed (F16D 43/24 takes precedence; clutches in which the drive is transmitted through a medium consisting of small particles F16D 37/00)
 F16D 43/06
·  ·  ·  with centrifugal masses actuating axially a movable pressure ring or the like
 F16D 43/08
·  ·  ·  ·  the pressure ring actuating friction plates, cones, or similar axially-movable friction surfaces
 F16D 43/09
·  ·  ·  ·  ·  in which the carrier of the centrifugal masses can be stopped
 F16D 43/10
·  ·  ·  ·  ·  the centrifugal masses acting directly on the pressure ring, no other actuating mechanism for the pressure ring being provided
 F16D 43/12
·  ·  ·  ·  ·  the centrifugal masses acting on, or forming a part of, an actuating mechanism by which the pressure ring can also be actuated independently of the masses
 F16D 43/14
·  ·  ·  with centrifugal masses actuating the clutching members directly in a direction which has at least a radial component; with centrifugal masses themselves being the clutching members
 F16D 43/16
·  ·  ·  ·  with clutching members having interengaging parts
 F16D 43/18
·  ·  ·  ·  with friction clutching members
 F16D 43/20
·  ·  controlled by torque, e.g. overload-release clutches, slip-clutches with means by which torque varies the clutching pressure
 F16D 43/202
·  ·  ·  of the ratchet type (slip couplings of the ratchet type F16D 7/04)  [5]
 F16D 43/204
·  ·  ·  ·  with intermediate balls or rollers  [5]
 F16D 43/206
·  ·  ·  ·  ·  moving axially between engagement and disengagement  [5]
 F16D 43/208
·  ·  ·  ·  ·  moving radially between engagement and disengagement  [5]
 F16D 43/21
·  ·  ·  with friction members
 F16D 43/22
·  ·  controlled by both speed and torque
 F16D 43/24
·  ·  controlled by acceleration or deceleration of angular speed
 F16D 43/25
·  ·  controlled by thermo-responsive elements
 F16D 43/26
·  ·  acting at definite angular position or disengaging after a definite number of rotations (actuating by means of stationary abutment F16D 11/02, F16D 13/02, F16D 15/00; control of change-speed or reversing-gearings conveying rotary motion F16H 59/00-F16H 63/00)
 F16D 43/28
·  actuated by fluid pressure
 F16D 43/284
·  ·  controlled by angular speed
 F16D 43/286
·  ·  controlled by torque
 F16D 43/30
·  Systems of a plurality of automatic clutches
P:80 F16D 45/00
Freewheels or freewheel clutches combined with automatic clutches
   
P:20 F16D 47/00
Systems of clutches, or clutches and couplings, comprising devices of types grouped under at least two of the following sets of groups: F16D 1/00-F16D 9/00; F16D 11/00-F16D 23/00; F16D 25/00-F16D 29/00; F16D 31/00-F16D 39/00; F16D 41/00-F16D 45/00 (freewheels combined with a clutch to lock the driving and driven members of the freewheel F16D 41/04, F16D 41/26)
 F16D 47/02
·  of which at least one is a coupling (elastic attachment of clutch parts, see the relevant groups for clutches)
 F16D 47/04
·  of which at least one is a freewheel (F16D 47/02, F16D 47/06 take precedence)
 F16D 47/06
·  of which at least one is a clutch with a fluid or a semifluid as power-transmitting means
P:0 F16D 48/00
External control of clutches  [6]
 F16D 48/00

Note(s)

This group does not cover actuation, which is covered by groups F16D 11/00-F16D 29/00[6]

 F16D 48/02
·  Control by fluid pressure  [6]
 F16D 48/04
·  ·  providing power assistance  [6]
 F16D 48/06
·  Control by electric or electronic means, e.g. of fluid pressure  [6]
 F16D 48/08
·  ·  Regulating clutch take-up on starting  [6]
 F16D 48/10
·  ·  Preventing unintentional or unsafe engagement  [6]
 F16D 48/12
·  ·  Control of torque transfer between driven axles  [6]
 F16D 49/00 - 
F16D 66/00
Brakes (electrodynamic brake systems for vehicles in general B60L; dynamo-electric brakes H02K)
P:330 F16D 49/00
Brakes with a braking member co-operating with the periphery of a drum, wheel-rim, or the like (similar clutches F16D 13/10)
 F16D 49/02
·  shaped as a helical band or coil with more than one turn, with or without intensification of the braking force by the tension of the band or contracting member (similar clutches F16D 13/08)
 F16D 49/04
·  ·  mechanically actuated
 F16D 49/06
·  ·  fluid actuated
 F16D 49/08
·  shaped as an encircling band extending over approximately 360°
 F16D 49/10
·  ·  mechanically actuated (self-tightening F16D 49/20)
 F16D 49/12
·  ·  fluid actuated
 F16D 49/14
·  shaped as a fluid-filled flexible member actuated by variation of the fluid pressure
 F16D 49/16
·  Brakes with two brake-blocks (self-tightening F16D 49/20)
 F16D 49/18
·  Brakes with three or more brake-blocks (self-tightening F16D 49/20)
 F16D 49/20
·  Self-tightening brakes (with helical band or coil with more than one turn F16D 49/02)
 F16D 49/22
·  ·  with an auxiliary friction member initiating or increasing the action of the brake
P:340 F16D 51/00
Brakes with outwardly-movable braking members co-operating with the inner surface of a drum or the like (similar clutches F16D 13/14)
 F16D 51/02
·  shaped as one or more circumferential bands (similar clutches F16D 13/12)
 F16D 51/04
·  ·  mechanically actuated
 F16D 51/06
·  ·  fluid actuated
 F16D 51/08
·  shaped as an expansible fluid-filled flexible member
 F16D 51/10
·  shaped as exclusively radially-movable brake-shoes
 F16D 51/12
·  ·  mechanically actuated
 F16D 51/14
·  ·  fluid actuated
 F16D 51/16
·  shaped as brake-shoes pivoted on a fixed or nearly-fixed axis (self-tightening F16D 51/46)
 F16D 51/18
·  ·  with two brake-shoes
 F16D 51/20
·  ·  ·  extending in opposite directions from their pivots
 F16D 51/22
·  ·  ·  ·  mechanically actuated
 F16D 51/24
·  ·  ·  ·  fluid actuated
 F16D 51/26
·  ·  ·  both extending in the same direction from their pivots
 F16D 51/28
·  ·  ·  ·  mechanically actuated
 F16D 51/30
·  ·  ·  ·  fluid actuated
 F16D 51/32
·  ·  with three or more brake-shoes
 F16D 51/34
·  ·  ·  extending in opposite directions from their pivots
 F16D 51/36
·  ·  ·  ·  mechanically actuated
 F16D 51/38
·  ·  ·  ·  fluid actuated
 F16D 51/40
·  ·  ·  all extending in the same direction from their pivots
 F16D 51/42
·  ·  ·  ·  mechanically actuated
 F16D 51/44
·  ·  ·  ·  fluid actuated
 F16D 51/46
·  Self-tightening brakes with pivoted brake-shoes
 F16D 51/48
·  ·  with two linked or directly-interacting brake-shoes
 F16D 51/50
·  ·  ·  mechanically actuated
 F16D 51/52
·  ·  ·  fluid actuated
 F16D 51/54
·  ·  with three or more brake-shoes, at least two of them being linked or directly interacting
 F16D 51/56
·  ·  ·  mechanically actuated
 F16D 51/58
·  ·  ·  fluid actuated
 F16D 51/60
·  ·  with wedging action of a brake-shoe, e.g. the shoe entering as a wedge between the brake-drum and a stationary part
 F16D 51/62
·  ·  ·  mechanically actuated
 F16D 51/64
·  ·  ·  fluid actuated
 F16D 51/66
·  ·  an actuated brake-shoe being carried along and thereby engaging a member for actuating another brake-shoe
 F16D 51/68
·  ·  ·  mechanically actuated
 F16D 51/70
·  ·  ·  fluid actuated
P:320 F16D 53/00
Brakes with braking members co-operating with both the periphery and the inner surface of a drum, wheel-rim, or the like (similar clutches F16D 13/20)
P:350 F16D 55/00
Brakes with substantially-radial braking surfaces pressed together in axial direction, e.g. disc brakes (similar clutches F16D 13/38)
 F16D 55/02
·  with axially-movable discs or pads pressed against axially-located rotating members
 F16D 55/04
·  ·  by moving discs or pads away from one another against radial walls of drums or cylinders
 F16D 55/06
·  ·  ·  without self-tightening action
 F16D 55/08
·  ·  ·  ·  Mechanically-actuated brakes
 F16D 55/10
·  ·  ·  ·  Brakes actuated by a fluid-pressure device arranged in or on the brake
 F16D 55/12
·  ·  ·  ·  ·  comprising an expansible fluid-filled flexible member coaxial with the brake
 F16D 55/14
·  ·  ·  with self-tightening action, e.g. by means of coacting helical surfaces or balls and inclined surfaces
 F16D 55/15
·  ·  ·  ·  initiated by means of brake-bands or brake-shoes
 F16D 55/16
·  ·  ·  ·  Mechanically-actuated brakes
 F16D 55/18
·  ·  ·  ·  Brakes actuated by a fluid-pressure device arranged in or on the brake
 F16D 55/20
·  ·  ·  ·  ·  comprising an expansible fluid-filled flexible member coaxial with the brake
 F16D 55/22
·  ·  by clamping an axially-located rotating disc between movable braking members, e.g. movable brake discs or brake pads  [5]
 F16D 55/224
·  ·  ·  with a common actuating member for the braking members  [5]
 F16D 55/225
·  ·  ·  ·  the braking members being brake pads  [5]
 F16D 55/2255
·  ·  ·  ·  ·  in which the common actuating member is pivoted  [5]
 F16D 55/226
·  ·  ·  ·  ·  in which the common actuating member is moved axially  [5]
 F16D 55/2265
·  ·  ·  ·  ·  ·  the axial movement being guided by one or more pins  [5]
 F16D 55/227
·  ·  ·  ·  ·  ·  ·  by two pins  [5]
 F16D 55/228
·  ·  ·  with a separate actuating member for each side
 F16D 55/24
·  with a plurality of axially-movable discs, lamellae, or pads, pressed from one side towards an axially-located member
 F16D 55/26
·  ·  without self-tightening action
 F16D 55/28
·  ·  ·  Brakes with only one rotating disc
 F16D 55/30
·  ·  ·  ·  mechanically actuated
 F16D 55/31
·  ·  ·  ·  ·  by means of an intermediate leverage
 F16D 55/32
·  ·  ·  ·  actuated by a fluid-pressure device arranged in or on the brake
 F16D 55/33
·  ·  ·  ·  ·  by means of an intermediate leverage
 F16D 55/34
·  ·  ·  ·  ·  comprising an expansible fluid-filled flexible member coaxial with the brake
 F16D 55/36
·  ·  ·  Brakes with a plurality of rotating discs all lying side by side
 F16D 55/38
·  ·  ·  ·  mechanically actuated
 F16D 55/39
·  ·  ·  ·  ·  by means of an intermediate leverage
 F16D 55/40
·  ·  ·  ·  actuated by a fluid-pressure device arranged in or on the brake
 F16D 55/41
·  ·  ·  ·  ·  by means of an intermediate leverage
 F16D 55/42
·  ·  ·  ·  ·  comprising an expansible fluid-filled flexible member coaxial with the brake
 F16D 55/44
·  ·  ·  with the rotating part consisting of both central plates and ring-shaped plates arranged concentrically around the central plates
 F16D 55/46
·  ·  with self-tightening action
 F16D 55/48
·  ·  ·  with discs or pads having a small free angular travel relative to their support, which produces the self-tightening action
 F16D 55/50
·  ·  ·  with auxiliary friction members, which may be of different type, producing the self-tightening action
P:300 F16D 57/00
Liquid-resistance brakes; Air-resistance brakes
 F16D 57/02
·  with blades or like members braked by the fluid
 F16D 57/04
·  with blades causing a directed flow, e.g. Föttinger type
 F16D 57/06
·  comprising a pump circulating fluid, braking being effected by throttling of the circulation
P:290 F16D 59/00
Self-acting brakes, e.g. coming into operation at a predetermined speed
 F16D 59/02
·  spring-loaded and adapted to be released by mechanical, fluid, or electromagnetic means
P:310 F16D 61/00
Brakes with means for making the energy absorbed available for use (F16D 57/00 takes precedence)
P:280 F16D 63/00
Brakes not otherwise provided for; Brakes combining more than one of the types of groups F16D 49/00-F16D 61/00 (brakes with auxiliary members for self-tightening F16D 49/22, F16D 51/66, F16D 55/50)
P:360 F16D 65/00
Parts or details (similar members for clutches F16D 13/58)
 F16D 65/02
·  Braking members; Mounting thereof (friction linings or attachment thereof F16D 69/00)
 F16D 65/04
·  ·  Bands, shoes or pads; Pivots or supporting members therefor  [5]
 F16D 65/06
·  ·  ·  for externally-engaging brakes
 F16D 65/08
·  ·  ·  for internally-engaging brakes
 F16D 65/09
·  ·  ·  ·  Pivots or supporting members therefor  [2]
 F16D 65/092
·  ·  ·  for axially-engaging brakes, e.g. disc brakes  [5]
 F16D 65/095
·  ·  ·  ·  Pivots or supporting members therefor  [5]
 F16D 65/097
·  ·  ·  ·  ·  Resilient means interposed between pads and supporting members  [5]
 F16D 65/10
·  ·  Drums for externally- or internally-engaging brakes
 F16D 65/12
·  ·  Discs; Drums for disc brakes
 F16D 65/14
·  Actuating mechanisms for brakes; Means for initiating operation at a predetermined position (brake control systems, parts thereof B60T)
 F16D 65/16
·  ·  arranged in or on the brake
 F16D 65/18
·  ·  ·  adapted for drawing members together
 F16D 65/20
·  ·  ·  ·  comprising a fluid-pressure device
 F16D 65/21
·  ·  ·  ·  acting by electric or magnetic means  [2]
 F16D 65/22
·  ·  ·  adapted for pressing members apart
 F16D 65/24
·  ·  ·  ·  comprising a fluid-pressure device
 F16D 65/26
·  ·  ·  ·  ·  in the form of a fluid-filled flexible member
 F16D 65/27
·  ·  ·  ·  acting by electric or magnetic means  [2]
 F16D 65/28
·  ·  arranged apart from the brake
 F16D 65/30
·  ·  ·  acting mechanically
 F16D 65/32
·  ·  ·  acting by fluid means
 F16D 65/34
·  ·  ·  acting by electric or magnetic means (holding devices using electrostatic attraction H02N 13/00)  [2]
 F16D 65/35
·  ·  ·  ·  including a permanent magnet  [3]
 F16D 65/36
·  ·  ·  acting by both fluid and electric means
 F16D 65/38
·  Slack adjusters
 F16D 65/40
·  ·  mechanical
 F16D 65/42
·  ·  ·  non-automatic
 F16D 65/44
·  ·  ·  ·  by means of direct linear adjustment (F16D 65/46, F16D 65/48 take precedence)
 F16D 65/46
·  ·  ·  ·  with screw-thread and nut
 F16D 65/48
·  ·  ·  ·  with eccentric or helical body
 F16D 65/50
·  ·  ·  ·  for angular adjustment of two concentric parts of the brake control system
 F16D 65/52
·  ·  ·  self-acting in one direction for adjusting excessive play
 F16D 65/54
·  ·  ·  ·  by means of direct linear adjustment (F16D 65/56, F16D 65/58 take precedence)
 F16D 65/56
·  ·  ·  ·  with screw-thread and nut
 F16D 65/58
·  ·  ·  ·  with eccentric or helical body
 F16D 65/60
·  ·  ·  ·  for angular adjustment of two concentric parts of the brake control system
 F16D 65/62
·  ·  ·  self-acting in both directions for adjusting excessive and insufficient play
 F16D 65/64
·  ·  ·  ·  by means of direct linear adjustment (F16D 65/66, F16D 65/68 take precedence)
 F16D 65/66
·  ·  ·  ·  with screw-thread and nut
 F16D 65/68
·  ·  ·  ·  with eccentric or helical body
 F16D 65/70
·  ·  ·  ·  for angular adjustment of two concentric parts of the brake control system
 F16D 65/72
·  ·  hydraulic
 F16D 65/74
·  ·  ·  self-acting in one direction
 F16D 65/76
·  ·  ·  self-acting in both directions
 F16D 65/78
·  Features relating to cooling
 F16D 65/80
·  ·  for externally-engaging brakes
 F16D 65/807
·  ·  ·  with open cooling system, e.g. cooled by air  [2]
 F16D 65/813
·  ·  ·  with closed cooling system  [2]
 F16D 65/82
·  ·  for internally-engaging brakes
 F16D 65/827
·  ·  ·  with open cooling system, e.g. cooled by air  [2]
 F16D 65/833
·  ·  ·  with closed cooling system  [2]
 F16D 65/84
·  ·  for disc brakes
 F16D 65/847
·  ·  ·  with open cooling system, e.g. cooled by air  [2]
 F16D 65/853
·  ·  ·  with closed cooling system  [2]
P:270 F16D 66/00
Arrangements for monitoring working conditions, e.g. wear, temperature
 F16D 66/02
·  Apparatus for indicating wear
   
P:10 F16D 67/00
Combinations of couplings and brakes; Combinations of clutches and brakes (F16D 71/00 takes precedence; combinations of couplings and clutches F16D 47/02; conjoint control of brake systems and driveline clutches in vehicles B60W 10/02, B60W 10/18)  [2]
 F16D 67/02
·  Clutch-brake combinations
 F16D 67/04
·  ·  fluid actuated
 F16D 67/06
·  ·  electromagnetically actuated
P:380 F16D 69/00
Friction linings; Attachment thereof; Selection of coacting friction substances or surfaces (clutching elements F16D 13/60; braking members F16D 65/02)
 F16D 69/02
·  Composition of linings (chemical aspects, see the relevant classes)
 F16D 69/04
·  Attachment of linings
P:370 F16D 71/00
Mechanisms for bringing members to rest in a predetermined position (combined with, or controlling, clutches F16D 43/26; means for initiating operation of brakes at a predetermined position F16D 65/14; means for securing members after operation F16B 1/02)
 F16D 71/02
·  comprising auxiliary means for producing the final movement
 F16D 71/04
·  providing for selection between a plurality of positions (F16D 71/02 takes precedence)