Conveyers comprising a cyclically-moving, e.g. reciprocating, carrier or impeller which is disengaged from the load during the return part of its movement (jigging B 65 G 27/00; pumps F 04)
25
/
02
•
the carrier or impeller having different forward and return paths of movement, e.g. walking-beam conveyers
25
/
04
•
the carrier or impeller having identical forward and return paths of movement, e.g. reciprocating conveyers
25
/
06
•
•
having carriers, e.g. belts
25
/
08
•
•
having impellers, e.g. pushers
25
/
10
•
•
•
with impeller pivotally mounted on a reciprocating bar
25
/
12
•
•
•
with impeller fixed to a reciprocating bar and the bar being rotated about its longitudinal axis on its return stroke
27
/
00
Jigging conveyers (jigs for wet separation B 03 B
; generating or transmitting mechanical vibrations B 06; jiggers for screening, sifting, or sorting B 07 B 1/28)
27
/
02
•
comprising helical or spiral channels or conduits for elevation of materials (helical or spiral chutes in general B 65 G 11/06)
27
/
04
•
Load-carriers other than helical or spiral channels or conduits
27
/
06
•
•
Joints connecting load-carrier sections
27
/
08
•
Supports or mountings for load-carriers, e.g. framework, bases, spring arrangements
27
/
10
•
Applications of devices for generating or transmitting jigging movements
27
/
12
•
•
of shaking devices, i.e. devices for producing movements of low frequency and large amplitude
27
/
14
•
•
•
hydraulic
27
/
16
•
•
of vibrators, i.e. devices for producing movements of high frequency and small amplitude
27
/
18
•
•
•
Mechanical devices
27
/
20
•
•
•
•
rotating unbalanced masses
27
/
22
•
•
•
Hydraulic or pneumatic devices
27
/
24
•
•
•
Electromagnetic devices
27
/
26
•
•
•
with elastic coupling between vibrator and load-carrier
27
/
28
•
•
with provision for dynamic balancing
27
/
30
•
•
•
by means of an oppositely-moving mass, e.g. a second conveyer
27
/
32
•
•
with means for controlling direction, frequency, or amplitude of vibration or shaking movement
27
/
34
•
comprising a series of co-operating units
29
/
00
Rotary conveyers, e.g. rotating discs, arms, star-wheels, cones (mechanical projectors B 65 G 31/00; screw or rotary spiral conveyers B 65 G 33/00)
Mechanical throwing machines for articles or solid materials (distributors for fertilisers A 01 C; moulding machines B 22 C; sandblasting devices B 24 C; implements for applying plaster
E 04 F 21/06)
31
/
02
•
comprising belts
31
/
04
•
comprising discs, drums, or like rotary impellers
33
/
00
Screw or rotary spiral conveyers (screws for extruding, compressing, kneading, mixing, pumping, or other special operations, see the relevant classes)
33
/
02
•
for articles
33
/
04
•
•
conveyed between a single screw and guiding means
33
/
06
•
•
conveyed and guided by parallel screws
33
/
08
•
for fluent solid materials
33
/
10
•
•
with non-enclosed screws
33
/
12
•
•
with screws formed by straight tubes or drums having internal threads, or by spiral or helical tubes
33
/
14
•
•
comprising a screw or screws enclosed in a tubular housing
33
/
16
•
•
•
with flexible screws operating in flexible tubes
33
/
18
•
•
•
with multiple screws in parallel arrangements
33
/
20
•
•
•
the housing being rotatable relative to the screw
33
/
22
•
•
•
with means for retarding material flow at the delivery end of the housing
