baber/WOPTO huggingface dataset:
Patent GB-391309-A (GB)
Title: A new or improved manufacture of rubber
IPC: C08C3/00
Filed: 1932-04-26
Abstract: Raw rubber is crumbed by soaking it in water, or in an aqueous solution of a water miscible liquid such as alcohol, glycerol, or formalin, and submitting it to a shearing or mincing process. Alternatively or in addition to the soaking, the surface of the rubber may be coated with a slurry or paste of a powder such as whiting, clay, magnesium or calcium hydroxide.  Alkaline earth hydroxides may be employed either as solutions or in suspension, and may be added as such, or formed in situ as by the reaction of a soluble alkaline earth salt with an alkali hydroxide.
Patent GB-217389-A (GB)
Title: Combined gas cooker and hot water circulator
IPC: F24C13/00
Filed: 1923-05-03
Abstract: 217,389. Keillor, G., Smith, N. S., and Simpson, J. May 3, 1923. Gas cooking-stoves; boilers, arrangement of.- In a combined gas-cooker and water-circulator, of the type comprising an oven 1 surmounting or accommodating a chamber 2 containing the circulator and in communication with it, the oven being heated by the burners 8 in the circulator chamber, the circulator comprises two or more groups of horizontally-disposed tubes 4, 5, connected by headers and so arranged that the entire series is traversed by the combustion products. In the arrangement shown, the upper series of tubes is inclined, and a baffle 9 is arranged between the tubes and the top of the chamber 2.
Patent GB-824802-A (GB)
Title: Improvements relating to rotary pumps of the outwardly sliding non-radial vane type
IPC: F04C2/344
Filed: 1957-04-12
Abstract: 824,802. Rotary pumps. DESCHAMPS, D. J. April 12, 1957 [April 25, 1956], No. 11979/57. Class 110 (2). A rotor for a pump as disclosed in Specification 818,529 is provided with slots 44 which may be disposed in radial planes or planes parallel thereto, pressure-balancing passages 46, 47 being also provided as shown. The rotor is disposed in the pump chamber with its axis parallel thereto. The cylindrical surface of the pump cavity being at a maximum distance from the rotor at the closing edge of the inlet port as shown. The vanes 75 are in the form of flat plates and are each furnished with a bevelled nose 76 having a rounded portion 77. For full details of the shape of the pump cavity the Specification should be referred to. Specification 820,648 also is referred to.
Patent GB-651997-A (GB)
Title: Improvements in or relating to a receptacle filler
IPC: B67C3/26
Filed: 1948-05-03
Abstract: 651,997. Bottling. CHERRY-BURRELL CORPORATION. May 3, 1948, No. 12081. Convention date. Oct. 21, 1947. [Class 125(ii)] [Also in Group XXIX] In a bottling apparatus comprising filling heads depending from the bottom 2 of a milk &c. reservoir preferably maintained under partial vacuum, a vent tube 10 supported by a spider 13 in the outlet aperture extends through the head to the air space and its top is surmounted by a closure 32 which is lifted by an actuator 33 adapted to be pushed up by guides 31 of a liquid supply tube 24 as this rises away from a valve plug 22 at the bottom of the vent tube upon engagement of a bottle with a seal element 29. A resilient bellows 25 is maintained under slight compression between the reservoir bottom and a nesting groove 28 in tube 24, and returns the tube to its seating position on plug 22 when the filled bottle is lowered. Actuator 33 may be replaced by a tube telescoped over the vent tube or a heavy bar with laterally extending closure bracket and apertured guide arms. In place of the bellows a spring 44 may be compressed between stationary and movable parts 43, 42, of the supply tube and the vent tube closure carried by a spring clip 48 which has apertured branches of a lower lug 49 through which the tube passes. The actuator may include a weighted cap holder to facilitate lowering.
Patent GB-436894-A (GB)
Title: Capacity operated discharge lamp
IPC: H01J61/30
Filed: 1934-04-23
Abstract: 436,894. Discharge lamps. HUMMEL, C., 34, Eisenacher Strasse, Berlin. April 23, 1934, No. 12148. [Class 39 (i)] In a lamp having an electrode outside the envelope and at least one inside, the thickness of the envelope wall is made between onetenth and four-tenths of a millimeter. The glass has a high dielectric constant, i.e. between 9 and 30 and may be of crown-lead, zirconiumtitanium or silicate flint glass. In one form the inner electrode 2 is carried on an insulating mount 3 and has an activated coating of barium, caesium; magnesium, &c. A thin coating 15 of this material may be deposited on the inside of the envelope. The outer electrode 4-and if desired the inner electrode 15-may be of reflecting material such as silver, magnesium or sodium. The lamp is enclosed in an insulating holder 6 leaving only the upper face 5 free for lighting ; or the outer coating and the holder may be transparent the coating being of glue or cellulosis containing hygroscopic salts. The lamp is particularly suitable for lighting switch points and in a modification is enclosed in a holder 12, Fig. 2, having clips 13, 14 for attachment to the switch point 16 ; or the holder may be attached by screws or cement. In modifications the switch covers have sockets for reception of the lamp the sockets being provided with contacts for the electric supply to the lamp. Mains voltage and frequency are used in the lamp.
Patent GB-784097-A (GB)
Title: A hydraulic control system
IPC: F15B13/044
Filed: 1955-04-27
Abstract: 784,097. Hydraulic systems; valves. CKD CESKA LIPA, NARODNI PODNIK, and VLTAVSKY, M. April 27,1955, No. 12161/55. Classes 69 (2) and 135. An hydraulic system comprising a pump 11, Fig. 1, a tank 13 and a double-acting piston 10 includes a slide valve 4 which may be moved into any one of four operational positions by means of electromagnets 1, 2 urged downwardly by springs 6, 5 respectively. The magnets are connected to the ends of a two-armed lever 3 having unequal arms a, b (or, alternatively, the strokes of the magnets may be unequal), which is pivotally connected to the rod 4a of the valve 4. With both magnets deenergized the valve is in its lowermost position, the lower end 9 of the cylinder 15 being connected to the pump and the upper end 8 to the tank so that the piston is raised in its cylinder. On energization of the magnet 1 the valve is raised so that communication between the lower end 9 and the pump is cut and the upper end 8 is open to both the tank and the pump to by-pass the pump supply back to the tank and at the same time trap liquid in the end 9 to stop the downward movement of the piston. On then energizing the magnet 2 the valve 4 is raised still further, the bottom end 9 being opened to the tank and the upper end 8 to the pump only so that the piston is permitted to descend rapidly in its cylinder. On then de-energizing the magnet 1 the valve 4 descends to a position in which the upper end 8 is open to the pump and both the upper and lower ends are open to the tank through throttled passageways 7, 14 to reduce the rate of downward movement of the piston.
Patent GB-716185-A (GB)
Title: Improvements in or relating to pile carpets, rugs and the like
IPC: D03D27/00
Filed: 1951-05-24
Abstract: 716,185. Pile carpets. MACKAY & CO., Ltd., H., MACKAY, L. H., and MACKAY, J. May 19, 1952 [May 24, 1951], No. 12204/51. Drawings to Specification. Class 142(4) A pile carpet having a plain, unpatterned appearance, is formed with narrow channels, produced by omitting pile, in order to reduce pressure marking. The pile, at those portions of the margins of the pile bearing areas from which the pile tends to lean, as the result of the method of manufacture of the carpet, may be of greater density than elsewhere, thereby reducing the tendency of the pile to lean in any one direction. If there is no general tendency of the pile to lean the greater than normal density pile areas may be arranged evenly around the margins of the islands, or may form the central portion. Specification 656,845 is referred to.
Patent GB-838095-A (GB)
Title: Improvements relating to ball-and-socket joints
IPC: F16C11/06
Filed: 1956-04-20
Abstract: 838,095. Ball joints. COSSEL, H. VON., and LANGEN, V., [trading as EHRENREICH & CIE. A.]. April 20, 1956 [April 20. 1955]. No 12240/56 Class 65(2) In a ball joint comprising a housing 1 of synthetic plastic into which is pushed the ball end 7 of a bolt 6 the housing is open at both sides in the form of a ring and has a slot 3 extending' parallel to the bolt axis to enable the housing to yield resiliently upon the insertion of the ball end. The slot is widened at 4 to increase this yielding. A stem 4 of the housing may be apertured at 5 to receive a control rod; alternatively another housing may be provided at the end of the stem. When the ball has been inserted a clamp may be placed around the stem to eliminate the yielding capacity of the housing. The ball end of the bolt may be partly or wholly of synthetic material. or may be of steel.
Patent GB-166389-A (GB)
Title: Improvements in shuttle box mechanism for looms employed for weaving textile fabrics
IPC: D03D43/00
Filed: 1920-05-04
Abstract: 166,389. Beaumont, R., and Hill, W. G. May 4, 1920. Change-box motions.-In revolving-box motions of the type wherein the to-and-fro motion of the going-part or lay is utilized in conjunction with hooked levers for turning the shuttle boxes in either direction, the hooked levers are controlled directly by cam or tappet mechanism. Thus, levers d, d<1>, Fig. 1, provided with catches d<2>, d<3> may be operated by a cam a on the tappet shaft, so that one catch or the other or neither is in position to engage one of several studs &c. h on the rotatable shuttle-box carrier i<1>, the shuttle boxes accordingly being turned in one or other direction, or remaining stationary. The levers d, d<1> are connected by a spring j, as shown, or are acted upon by separate spiral springs, or by flat springs, and may be replaced by a single forked lever provided with an upper and lower catch, and movable into three positions. The shuttle boxes may be provided with carrier plates i<1> at each end, each provided with studs h. A spring-controlled locking-plunger k<1>, Fig. 7, working in a recess in a box k<2> on a stationary part i on the lay engages recesses k in the shuttle-box carrier i', and' thereby retains the shuttle boxes stationary after they have been moved. Instead of using studs &c. h, the carrier may have projections and recesses to co-operate with the catches, the plunger being made with an enlarged flat head. Grooved cams may replace the cams a; or a pattern chain may be used comprising links of three different heights, or comprising lags connected by links, such lags being provided with pins or pegs having heads of different lengths and shapes. Shuttle-box levers acting at both ends of a carrier and connected by a bar. or horizontally-forked levers, may be used. The shuttlebox carrier rotates on a shaft or on trunnions on a support having arms fixed to the lay, the shuttle boxes having openings receiving the usual spring- controlled stop-pieces or blocks for retaining the shuttle in the boxes. The shuttle boxes may be grouped in multiples of 4 or 6 in a rectangular or other carrier or carriers at one or both sides of the loom. When applied to a hand-loom, the going-part thereof is provided with a sector to drive a spur-wheel having a ratchet driving a ratchet-wheel, which is geared to the shaft carry. ing the cam operating the hooked levers, this cam being thus intermittently operated. According to the Provisional Specification, the race or swords of a hand-loom may be provided with catches for operating ratchet-mechanism &c. geared to the barrel or cylinder of the cams or box-chain.
Patent GB-1407131-A (GB)
Title: Adjustable drive vibratory device
IPC: H02K7/06
Filed: 1973-03-14
Abstract: 1407131 Control of AC motors VIBRANETICS INC 14 March 1973 [23 March 1972] 12350/73 Heading H2J A container 111 delivering bulk particulate material is vibrated at a selected frequency and stroke by a drive 113 comprising a three-phase squirrel cage induction motor 114 coupled to the container by springs 119 and to eccentrically mounted weights 123 on its drive shaft 122, the frequency and stroke being simultaneously altered by the simultaneous adjustment of the tappings 115a, 115b on the windings 115A, 115B of a two-phase autotransformer, whereby the voltages applied to the motor windings 114A, 114B are altered in magnitude and direction whilst the voltage applied to the motor winding 114C remains substantially constant. Starting from an initially balanced condition with all the motor windings receiving equal voltages, the tappings 115a, 115b are adjusted to decrease the frequency and stroke, the resultant unbalancing of the applied voltages, Fig. 2A (not shown), causing the motor to develop a negative braking torque as the voltages applied to the windings 114A, 114B are reduced. The described embodiment is an improvement on a known arrangement, Fig. 1, (not shown), wherein delta-connected windings of the motor are supplied from respective tappings on a threephase autotransformer simultaneously adjustable to alter all three motor winding voltages in like magnitude and direction.
Patent GB-720213-A (GB)
Title: Improvements in or relating to a plate valve
IPC: F16K3/10
Filed: 1952-05-16
Abstract: 720,213. Rotary plate valves. VULCAN RESEARCH CORPORATION. May 16, 1952 [June 7, 1951], No. 12426/52. Class-135,. A plate valve for controlling gas flow in large-diameter conduits comprises a rotatable valve plate 17, Fig. 2, having a hole therethrough which may be brought into and out of register with annular seating members 2, 3 having flanges 4 connecting them to the conduit. The plate 17 is pivoted on a pin 13 and rotated by the meshing of teeth 20, Fig. 3, on its periphery with a pinion 21 keyed to a shaft 22 rotatable by a chain sprocket 24, Fig. 4. The casing 39, 46, sealingly surrounding the plate 17 and made from several flanged parts welded to each other and to the members 2, 3, is slightly deformable to allow limited movement of the members 2, 3 towards and away from the plate either to grip the plate or permit of its rotation. The members 2, 3 are moved relatively towards or away from each other by means of rods 10 triangularly disposed about the casing, each rod having screw-threaded ends of the same hand but of different pitch coacting with nuts 9 secured to the members and mounting a sprocket 11 over which passes an endless chain. One of the rods 10, Fig. 4, has a gear 25 keyed thereto which meshes with a pinion 26 loosely mounted on the shaft 22 and secured to a gear 30, the gear 30 meshing with a pinion 32 keyed to a shaft 33 rotatable by a chain sprocket 35. Specification 719,251, [Group XXIV], is referred to.
Patent GB-403282-A (GB)
Title: Improvements in dispensing devices
IPC: A47K5/10
Filed: 1933-04-28
Abstract: 403,282. Delivering measured quantities of powdered materials. WOOSTER, P. A., 509, Montgomery Street, San Francisco, U.S.A. April 28, 1933, No. 12447. [Class 106 (v).] A device for dispensing measured quantities of materials, and intended more particularly for powdered soap, comprises a receptacle 1 having a vertically disposed discharge passage 6 which is intersected by a valve casing 9 and provided at its lower end with a detachable closure means such as a plug 8 giving access for cleaning or other purposes, an outlet 11 extending downwardly from said casing and offset from the discharge passage and a valve 12 slidably mounted in the casing and having an aperture 17 which may be brought into register with either the discharge passage or the outlet. The valve is operated by means of a stem 22 against the action of a spring 18 and is held against rotation by means of a screw projecting through the casing and engaging a longitudinal slot in the valve. The innermost position of the valve is determined by stops 23, 24 thus forming a chamber between the inner end of the valve and the casing and a similar chamber is formed at the outer end of the valve by a cap 21, both chambers having openings 26 for the discharge of any material that may have passed between the valve and its casing.
Patent GB-552924-A (GB)
Title: Improvements in or relating to a.c. electric circuit-breakers of the gas-blast type
IPC: H01H33/16
Filed: 1941-09-25
Abstract: 552,924. Gas-blast switches. REYROLLE & CO., Ltd., A., AMER, D. F., and RAWLING, A. Sept. 25, 1941, No. 12447. [Class 38 (v)] In a gas-blast switch wherein the blast flows through a nozzle or vent through which the arc extends centrally, and a resistance, which limits the current if the are restrikes, is connected between one of the arcing contacts and an auxiliary electrode, the latter is supported wholly from the high-pressure side of the nozzle or vent. A movable bridging contact C comprising a number of inwardly spring-pressed fingers and mounted on a fluid-actuated piston C', normally interconnects a tubular contact D and a nozzle B. The arc drawn when C is raised is transferred at one end to the tip D<SP>1</SP> and at the other to the top of nozzle B and thence to the arcing contact B<SP>4</SP>. The electrode E' projecting towards or into the nozzle B is mounted on a rod E which is surrounded with insulation E<SP>2</SP> and connected by a resistance F to the tube D, so that if the arc strikes E<SP>1</SP>, the resistance is introduced into the circuit and helps quench the arc, and any restriking of the arc occurs between B<SP>4</SP> and E' due to the lower dielectric strength at that place. The breakdown-strength between B, E' may be reduced by lining the nozzle-throat with insulation, as shown. The electrode E' may carry a surrounding ring lying within the metal nozzle B, Fig. 2 (not shown), or lying between the contact D and the insulation-lined nozzle in such a way as to be positively engaged by the bridge C in the opening movement, Fig. 3 (not shown). In Fig. 4, the nozzle B is of insulating material and carries an arcing-bar B<SP>6</SP> in engagement with a fixed contact B' from which tube D is adapted to be lowered by a piston D<SP>4</SP>. Also the rod E<SP>5</SP> supporting the electrode E<SP>1</SP> is itself of resistance-material such as silicon graphite. By placing two single-break arrangements end-toend, a double-break switch can be obtained in which the blasts exhaust to a common lowpressure space between the two nozzles ; the two metal housings B' are then interconnected, the auxiliary electrode and resistance of one break may be dispensed with, and the arcing contacts B<SP>4</SP> omitted so that the arcs merge into a single arc between the contacts D<SP>1</SP>. In another arrangement of this character an arc is initiated between the sides of'each of the fixed tubes D and two fluid-actuated contacts which are withdrawn laterally to break the circuit, Fig. 5 (not shown). The Provisional Specification refers to other modifications in detail. Specification 542,728 is referred to.
Patent GB-253685-A (GB)
Title: Improvements in tobacco pipes, cigar and cigarette holders
IPC: A24F1/08
Filed: 1925-05-13
Abstract: 253,685. Freeman, A. May 13, 1925. Tobacco pipes and cigar and cigarette holders. -A metal or other non-porous tube 8, permauently secured in the mouth-piece 7, extends into the stem bore 2 and abuts against a shoulder 3 therein. The tube 8 may be secured into the mouth-piece 7 and may also be screwed into the stem bore 2 either at its free end or intermediately as shown; alternatively, it may be provided with an enlarge ferrule engaging the stem bore frictionally. A cork, leather, or like washer may be interposed between the shoulder 3 and the tube 8; the tube may also contain a filter cart. ridge.
Patent GB-181210-A (GB)
Title: Improvements in or relating to bodkins and similar instruments
IPC: D05B91/02
Filed: 1921-05-02
Abstract: 181,210. Lawder, P. E., and Lane, E. C. Moore-. May 2, 1921. Bodkins.-A bodkin comprises a hooked part C with a pointed end c and a shorter hinged part B pressed outwardly by a spring D. In an alternative form, the part B is integral with the rest and resiliently presses outwardly against the pointed hook.
Patent GB-192007-A (GB)
Title: Improvements in apparatus for mounting thermionic valves
IPC: H05K5/00
Filed: 1922-05-03
Abstract: 192,007. Brunet, P., and Pelletier, G. May 3, 1922. Vacuum tubes. - Triode valves and associated apparatus are mounted as units, capable of ready assembly,' to form a cascade arrangement, by forming each unit as a box containing a transformer, condenser &c., covered by a lid 2 carrying the usual valve socket, and by providing three pins a, b, c, running transversely through the lid so as to align with the pins of neighbouring units and form continuous conductors. The high and low tension batteries are connected across the pairs of pins a, band b, c respectively. Fig. 2 is a plan of one unit. The valve is plugged into sockets f<1>, f<2>, g, p, the filament sockets f<1>, f<2> being connected directly to the pins a, b, and the grid and plate sockets g, p, connected to apparatus in the box. Fig. 5 shows a valve socket adapter, employed for heterodyne reception. For this purpose, the plate circuit of the valve includes, a reaction coil coupled to the input oscillatory circuit. The filament and grid sockets f, g pass through the adapter but the plate socket is divided by the insulation, the two parts p<x>, p<1> being connected to opposite ends of the reaction coil L<11>. The lower ends of the sockets f, g and the part p<1> are formed as plug-in pins and are inserted in the usual sockets on the lid of the unit. Specification 159,679, [Class 40 (v), Wireless signalling &c.], is referred to.
Patent GB-611429-A (GB)
Title: Improvements connected with saucepans and like cooking utensils
IPC: A47J36/06
Filed: 1946-04-26
Abstract: 611,429. Saucepans &c. WALL'S, Ltd., and BAYLISS, J. April 26, 1946. No. 12622 [Class 66] An adapter for holding one saucepan, &c., 6, within another 4, has a flange 3, a stepped annular part 8 and a depending part 5 ending with an interned flange 7 which supports the pan 6.
Patent GB-217016-A (GB)
Title: Improvements in or relating to apparatus for casting curved stereotype printing plates
IPC: B41D3/00
Filed: 1923-05-11
Abstract: 217,016. Linotype & Machinery, Ltd., and Goulding, B. J. J. May 11, 1923. Stereotype.-In stereotype casting apparatus of the kind in which a vertical core is rotatable about a central pillar, vertical pipes are arranged in the annular space between the core and pillar and adapted to spray cooling water on to the inner surface of the core. The pipes 1, provided with staggered holes 13, open at their lower ends into a chamber 2 which is also provided with holes 14 and is secured to the central pillar 7 in communication with a water supply passage 6. The upper ends of the pipes are closed by plugs 8 and are held in position by a plate 9 secured to the pillar 7 Plugs' 3 in the bottom of the chamber 2 opposite to the pipes 1, and end plugs 16 in the chamber provide for access to the interior of the pipes and chamber. The pipes 1 and chamber 2 are of small internal capacity so that they become rapidly filled with water and the plates are quickly cooled at a low consumption of cooling water.
Patent GB-620840-A (GB)
Title: Improvements in clutch and brake mechanism
IPC: F16D67/04
Filed: 1946-04-26
Abstract: 620,840. Fluid-pressure-operated disc-brakes. FITZPATRICK, H. J. (Clearing Machine Corporation). April 26, 1946, No. 12726. [Class 103 (i)] [Also in Group XXIV] A brake-disc 47, splined on the rotating shaft 10 of a press, is clamped against a back-plate 40 of a stationary housing 19 by engaging- springs 53 acting on a presser-plate 42, and is released by fluid-pressure acting on a diaphragm-backed piston 50, or series of pistons. Two solenoid-valves 75, energized through manual push-buttons, control the supply and release of fluid pressure through a conduit 70 to the brake-piston 50 and simultaneously to a piston 38 which engages a driving clutch 30 as it disengages the brake to start the press.