IPC 6 English version G01G !A-G01G 17/08

IPC ⁶ English version

G01G-G01G01708

G01G 19/00 - G01G 23/48

SECTION G– PHYSICS

G 01

MEASURING (counting G 06 M); TESTING

G 01 G

WEIGHING (sorting by weighing B 07 C 5/16)

Note

Attention is drawn to the Notes following the title of class G 01.

Weighing apparatus involving the use of a counterweight or other counterbalancing mass

Pendulum-weight apparatus

the pendulum having a fixed pivot axis

with a plurality of pendulums

the pendulum having a moving pivot axis, e.g. a floating pendulum

with a plurality of pendulums

Constructional arrangements for obtaining equal indicative divisions

Temperature-compensating arrangements

Means for correcting for obliquity of mounting

Balances involving the use of a pivoted beam, i.e. beam balances

Beam balances having the pans carried below the beam, and for use with separate counterweights

for precision weighing

Platform-type scales, i.e. having the pans carried above the beam

with associated counterweight or set of counterweights

involving means for automatically lifting counterweights corresponding to the load

with electrical or electromechanical control means [3]

wherein the counterweight is in the form of a chain

wherein the counterweights are in the form of rider-weights

involving a fixed counterweight, with poise-weights selectively added to the load side

wherein the counterweights are slidable along the beam, e.g. steelyards

with automatically-driven counterweight

specially adapted for weighing by substitution

Temperature-compensating arrangements

Weighing apparatus characterised by the use of elastically-deformable members, e.g. spring balances

wherein the weighing element is in the form of a helical spring

using a plurality of springs

wherein the weighing element is in the form of a spiral spring

wherein the weighing element is in the form of a leaf spring

wherein the torsional deformation of a weighing element is measured

wherein the weighing element is in the form of a solid body stressed by pressure or tension during weighing

having piezo-electric or piezo-resistive properties [3]

measuring variations of electrical resistance (G 01 G 3/13 takes precedence) [3]

142

Circuits specially adapted therefor [3]

145

involving comparison with a reference value (G 01 G 3/147 takes precedence) [3]

147

involving digital counting [3]

measuring variations of magnetic properties

measuring variations of frequency of oscillations of the body

Temperature-compensating arrangements

Weighing apparatus wherein the balancing is effected by fluid action

with a float or other member variably immersed in liquid

with means for measuring the pressure imposed by the load on a liquid (pressure gauges per se G 01 L)

using electrical indicating means [3]

Weighing apparatus wherein the balancing is effected by magnetic, electromagnetic, or electrostatic action, or by means not provided for in the preceding groups

by electromagnetic action

with means for regulating the current to solenoids

by electrostatic action

Methods of, or apparatus for, the determination of weight not otherwise provided for

11/

Apparatus for weighing a continuous stream of material during flow; Conveyer-belt weighers

11/

having mechanical weight-sensitive devices

11/

having electrical weight-sensitive devices

11/

having fluid weight-sensitive devices

11/

having means for controlling the rate of feed or discharge (regulation of flow of fluent material G 05 D)

11/

by controlling the height of the material on the belt

11/

by controlling the speed of the belt

11/

using totalising or integrating devices (totalising or integrating devices per se G 06)

11/

being electric or electronic devices [3]

11/

using digital counting [3]

11/

being mechanical devices [3]

13/

Weighing apparatus with automatic feed or discharge for weighing-out batches of material (for weighing a continuous stream G 01 G 11/00; check-weighing G 01 G 15/00; for fluids G 01 G 17/04; apportioning by weight materials to be mixed G 01 G 19/22; combinatorial weighing G 01 G 19/387) [5]

13/

Means for automatically loading weigh-pans or other receptacles, e.g. disposable containers, under control of the weighing mechanism

13/

involving dribble-feed means controlled by the weighing mechanism to top up the receptacle to the target weight

13/

wherein the main feed is effected by gravity from a hopper or chute

13/

wherein the main feed is effected by mechanical conveying means, e.g. by belt conveyers, by vibratory conveyers

13/

wherein the main feed is effected by pneumatic conveying means, e.g. by fluidised feed of granular material

13/

Arrangements for compensating for material suspended at cut-off, i.e. for material which is still falling from the feeder when the weigher stops the feeder

13/

Arrangements for determination of, or compensation for, the tare weight of an unloaded container, e.g. of a disposable container

13/

Means for automatically discharging weigh receptacles under control of the weighing mechanism

13/

by valves or flaps in the container bottom

13/

by screw conveyers in the weigh receptacle

13/

by tilting or rotating the receptacle

13/

Weighing mechanism control arrangements for automatic feed or discharge

13/

involving fluid-pressure systems

13/

involving variation of an electrical variable which is used to control loading or discharge of the receptacle

13/

285

involving comparison with a reference value (G 01 G 13/29 takes precedence) [3]

13/

involving digital counting [3]

13/

295

for controlling automatic loading of the receptacle [3]

13/

involving limit switches or position-sensing switches

13/

involving photoelectric devices

13/

involving mechanical linkage motivated by the weighing mechanism

15/

Arrangements for check-weighing of materials dispensed into removable containers (packaging aspects B 65 B)

15/

with provision for adding or removing a make-up quantity of material to obtain the desired net weight (dribble-feed means for automatic batch-weighers G 01 G 13/04)

15/

with provision for adding or removing a make-up quantity of material to obtain the desired gross weight (dribble-feed means for automatic batch-weighers G 01 G 13/04)

17/

Apparatus for, or methods of, weighing material of special form or property (determining weight by measuring volume G 01 F)

17/

for weighing material of filamentary or sheet form

17/

for weighing fluids, e.g. gases, pastes

17/

having means for controlling the supply or discharge

17/

for weighing livestock

G01G 19/00 - G01G 23/48