baber/WOPTO huggingface dataset:
Patent GB-701129-A (GB)
Title: Process for the manufacture of polyphosphates
IPC: C01B25/41
Filed: 1951-09-17
Abstract: Sodium polyphosphates are prepared by heating a dry intimate mixture of mono- and disodium phosphates obtained by drying a solution containing both phosphates and containing sodium sulphate which may be added either to the solution or to the dry mixture.  The dry mixture may be obtained from the solution by treatment on roller driers or by a spraying process.  The heating process may be carried out with or without fusion.
Patent GB-170121-A (GB)
Title: Improvements in or relating to the feeding of paper, cloth, or other material in long lengths from reels or rolls
IPC: B41L47/24
Filed: 1920-07-20
Abstract: 170,121. Addressograph, Ltd., and Battey, A. P. July 20, 1920. Feeding and registering webs. -A web of paper, cloth, or other material is fed continuously to an intermittent-feed mechanism by a feeding- mechanism arranged to deliver normally slightly less than that taken by the intermittent-feed mechanism, and a supplementary mechanism is provided to increase the amount so delivered when required. As shown, a web is drawn continuouslv from roll by a feedroller 5 and passes under a flcating roller 9 carried by pivoted arms 10, and is then guided through printing-mechanisms 13, 17 to an intermittently-operat.ed feed-roller 23. The feed-rollers 5, 23 are preferably roughened and coact with guiding-tapes as shown. A main shaft 31 drives a shaft 27 which drives the feedroller 23 through a crank block 26@ and slotted lever 28, adjustable connecting rod 30, tcothed sector 24 and loose gear 25 carrying a pawl engaging a ratchet-wheel on the feed-roller shaft. The shaft 31 also drives a sprocket-wheel 33 on a stud 34 carried by an arm 35 pivoted at 36 to the frame, and a change gear wheel 37 secured to the wheel 33 drives a wheel 38 loose on the shaft of the feed roller 5 and carrying a pawl 39 engaging a ratchet-wheel 41 fast on the shaft. The gears 37, 38 are such as to cause the roller 5 to feed slightly less than the amount of web fed by the roller 23. A second pawl 42 engaging the ratchet-wheel 41 is carried by a lever 44 pivoted to the gear 38 and normally held by a spring 46 against a stop pin 47, and by turning the lever 44 against the action of the spring 46 a movement is imparted to the roller 5 in addition to that imparted by the pawl 39. This movement of the lever 44 may be effected manually or as shown automatically under the control of the floating roller 9. An arm 51 pivoted at 50 to the machine frame has a projection 51<a> normally engaging a pallet 52 on a lever 53 which is pivoted at 54 to the machine frame and carries an adjustable stop 59. During the operation of the machine the roller 9 rises and falls, its limiting positions gradually getting higher owing to the gradual reduction of the length of the loop of web between the feeding-mechanisms. When the roller reaches a certain height, a projection 58 upon the arm 10 engages the stop 59 and depresses the pallet 52 clear of the projection 51a allowing a spring 55 to turn the arm 51 into the position shown in dotted lines in Fig. 2, in which the notched end of the arm is in the path of a projection 48 on an arm of the lever 44. As the gear 38 revolves, the lever 44 is turned to operate the pawl 42 and simultaneously the arm 51 is returned to normal position, this return being facilitated by a second projection 49 engaging the face of the arm 51.
Patent GB-1135020-A (GB)
Title: Typewriter ink ribbon
IPC: B41J31/09
Filed: 1966-05-17
Abstract: 1,135,020. Typewriter ink-ribbons. W. DABISCH. 17 May, 1966 [21 May, 1965], No. 21821/66. Heading B6F. [Also in Division D2] A typewriter ink-ribbon is formed by sandwiching two coloured strips 1 along one marginal edge 3 thereof between a laminated correction foil of paper or plastics 7, 8, one side of which carries a correction carrier layer 5. Strips 1 are bonded to the correction foil by a rubber cement thinned with xylene. In another embodiment (Fig. 2) a single coloured strip 1 is attached to a single foil 7. The marginal edge 3 is produced by coating it with cellulose acetate applied in the form of a solution in acetone hexylene glycol, the edge forming a barrier which prevents penetration of oily substances in coloured strip into the correction layer or softening of the adhesive bond. Correction layer is formed by a composition including 75 to 95% by weight of pigment, e.g. titanium dioxide or zinc sulphide and 5 to 15% by weight of a mixture of water, oil and glycerine resistant binder and at least one adhesive, the gravimetric binder/adhesive ratio varying from 5 : 1 to 1: 2. Binders include hard ceresines, purified montan waxes, chloronaphthalenes and polyethylenes. Adhesives include polyvinyl resins or natural resins such as calophonium or an aluminium salt of addition product of phenol resol with abietic acid. Plastics foil may be made of polyvinyl chloride, polyethylene or polyester.
Patent GB-1197005-A (GB)
Title: Gas Scrubber
Inventor: SELWAY JACK JOHN
IPC: B01D47/06
Filed: 1968-05-08
Abstract: 1,197,005. Gas-scrubber. CHEMICAL CONSTRUCTION CORP. 8 May, 1968 [24 May, 1967], No. 21908/68. Heading B1R. A scrubber for treating hot gases has a vertical section 14 with an axial liquid spray nozzle 9 and an inverted frusto-conical baffle 10 above which a plurality of nozzles 11 are arranged, the nozzles 11 extending horizontallv and tangentially into the duct to deliver a rotating flow of liquid over the baffle 10, slurry collects in the sump 15 and scrubbed gas leaves at 18. Nozzles 11 are -protected by an annular baffle 13 and the pipesupplying water to nozzle 9 by a refractory cover 8. The frusto-conical baffle may be made of concrete. Gas leaving through the outlet 18 may be scrubbed further by passing downwardly through a venturi-scrubber and upwardly through a column containing beds of welted packing material.
Patent GB-391767-A (GB)
Title: Improvements in and relating to electric transmission systems
IPC: H02P9/00
Filed: 1931-07-31
Abstract: 391,767. Electric systems for transmitting mechanical power; dynamoelectric machines. BRITISH THOMSONHOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Soc. Generale de Constructions Electriques et Mecaniques Alsthom ; 146, Avenue des Champs Elysees, Paris.) July 31, 1931, No. 21910. Convention date, Aug. 2, 1930. Void [Published under Sect. 91 of the Acts]. [Classes 35 and 38 (iv).] Exciting.-The external characteristic of the dynamo-electric generator 7 of a power transmission system for vehicles, for example, is approximated to that of the prime mover 6 driving it, i.e. to a hyperbola, by excitation arrangements comprising a field 8 energized by a constant but adjustable source of potential, such as the battery 9, in series with an exciter 10 energized by the constant source and by the current of the generator in opposition. The constant potential source may be in series with a second exciter 25 energized in a similar manner to the first exciter. In a modification, the constant source 9 energizes the two exciters only, in opposition to their energization by the generator current. One or both exciters may have an excitation 37 in shunt with the generator assisting the constant potential excitation. The two exciters may be combined in one machine, for example by two independent magnetic circuits operating upon a single armature. The exciters may be independently driven by constant speed motors or from the shaft of the main generator. The generator or an exciter may have a series winding to allow for starting by means of the battery.
Patent GB-300321-A (GB)
Title: New pyrazolones and dyes therefrom
IPC: C07D231/20
Filed: 1927-08-19
Abstract: 300,321. Imperial Chemical Industries, Ltd., and Mendoza. M. Aug. 19, 1927. Pyrazolones. - Aminodiarylsulphones of the type described in Specification 297,855 and aminodiarylsulphides of the type described in Specification 299,501 are converted into the corresponding hydrazines and therefrom into the corresponding pyrazolones by the usual methods. In an example, diazotized 2-amino-4-sulphophenyl-2-oxy - 3 - carboxynaphthylsulphone is reduced with sodium sulphite to the corresponding hydrazine and this is treated with acetoacetic or oxalacetic ester to obtain the corresponding 3- methyl- or 3-carboxy-5-pyrazolone. Azo dyes. - The above pyrazolones are employed as coupling components for the manufacture of azo dyes which, having a chelate group (OH,COOH) separated by a sulphone or sulphide bridge from a chromophoric group, are practically unchanged in shade by after-chrommg. In examples the preparation and properties are described of the following dyestuffs :-(1) sulphanilic acid, naphthionic acid, p-nitraniline, or 1 : 2-aminonaphthol-4-sulphonic acid # the 3- methyl-5-pyrazolone from 2-amino - 4 - sulphophenyl-2-oxy-3-carboxynaphthylsulphone or 2- amino - 4 - sulpho-2<1>-oxy-3<1>-carboxy-5<1>-methyl (or chloro) diphenylsulphone; (2) sulphanilic acid, naphthionic acid, or p-nitraniline # any one of the 3-carboxy-5-pyra.zolones corresponding to the 3-methyl-5-pyrazolones in (1); (3) naphthionic acid # any one of the 3-methyl-5-pyrazolones from the diphenyl sulphides corresponding to the diphenyl sulphones in (1); (4) p-aminoacetanilide # any one of the 3-carboxy-5-pyrazolones from the diphenyl sulphides in (3); (5) benzidine # 1 mol. of salicylic acid and 1 mol. of the 3- carboxy-5-pyrazolone from any one of the diphenyl sulphides in (3). Specifications 245,765, 245,865, 256,775, 260,058, 262,243 and 272,024 also are referred to.
Patent GB-1060763-A (GB)
Title: Valve construction of pressurized dispensers for food and other products
IPC: B65D83/14
Filed: 1964-05-27
Abstract: 1,060,763. Valves. VALVE CORPORATION OF AMERICA. May 27, 1964 [June 28, 19631, No. 21950/64. Heading F2V. [Also in Division F1] A valve, e.g. in a pressurized container (12) Fig. 1, not shown, for dispensing viscous and lumpy substances comprises a housing (26) and dual closure members (46), (58). The valve is opened, against the action of a spring (54), by a rod (not shown) which locates in a recess (66) and moves the members (46), (58) off their respective seats, the member (58) opening before the member (46). The member (46) has a conical surface (50) which co-operates with a stepped seat (40) and a rigid washer (52), which arrangement tends to break up lumps in the substance being dispensed. The housing (26) and closure members (46), (58) are formed from a resilient plastics material.
Patent GB-397666-A (GB)
Title: Improvements in or relating to methods of and apparatus for heat treating comminuted material
IPC: F26B23/06
Filed: 1932-08-05
Abstract: 397,666. Electric resistance furnaces. NATIONAL ELECTRIC HEATING CO., Inc., 154, Nassau Street, New York, U.S.A. Aug. 5, 1932, No. 21976. Convention date, April 16. [Class 39 (iii).] Comminuted material such as coal, or filter clay, is heated by being suspended in a fluid medium and passed through a tubular heater directly heated by electric current, whereby the suspension is raised to a high temperature for a short time. When treating powdered coal, the heater comprises metal tubes 11 having electric terminals 12 midway between the ends which are earthed, the currents in the three tubes being out of phase to neutralize self-induction. Powdered coal from a supply duct 19 is fed by screws 20 to one end of the tubes, the other ends of which open into a separator 14. Gas is supplied through jets 25 to mix with the coal, and the solid residue is separated from the distillates which pass by an outlet 33 to a heat exchanger 46, tar separator 48, fractionating tower 50 for recovery of oils, and ammonia scrubber 52. Part of the gas is returned through pipe 53, pump 55, heat exchanger 46, and pipe 56 to the tube inlets. A weighted valve 57 enables pressure to be maintained in the tubes. The powdered coke which contains 6 to 8 per cent volatiles, is discharged by a screw conveyer 34. Thermostats 26 by means of a controller 27, and voltage regulator 28, adjust the current supply, and maintain the tubes at a uniform temperature. An automatic device 29 subjected to the gas pressure opens a control circuit 30, and cuts off the current to the heating tubes when the gas pressure is reduced. When treating filter clay or cement, the powdered material is supplied through a screw feeder 70, Fig. 6, to a blower, and through the annular space in a preheater 73, before passing by a pipe 78 to an inlet 79 fed with superheated steam and air by pipes 80, 81, combustion taking place in a tube 76, and cooling in a tube 75, the residue passing to a separator 82 and discharge pipe 84 ; a jet 86 of air may be provided to accelerate the combustion of the carbon.
Patent GB-295512-A (GB)
Title: Improvements in or relating to disc-testing devices
Filed: 1927-08-20
Abstract: 295,512. London Electric Railway Co., and Every, W. S. Aug. 20, 1927. Coins, testing.-A disc-testing device, particularly for preventing the insertion of bent coins or of coins having imperfect edges in coin-freed apparatus, comprises a shoot having a narrow base strip 10 fitting against an upstanding wall 11, the shoot being downwardly and laterally inclined so that the discs run edgewise on the base 10 and are supported by the wall 11. Cross strips 13, 14 serve for attaching the shoot to feeding or testing shoots. Bent discs are not supported on the base 10 but fall over its exposed side into a rejection-channel or receptacle. In a device for testing discs 0.07 of an inch thick, for example, the base 10. may be 0.02 of an inch.
Patent GB-784955-A (GB)
Title: A new or improved method of making circular sound tracks
IPC: G10H3/06
Filed: 1955-07-29
Abstract: 784,955. Optical sound recording. LEMOINE, Y. July 29, 1955 [Sept. 10, 1954], No. 22010/55. Class 40 (2). A method of recording circular sound tracks for photo-electric musical instruments comprises the rotation of a sound-modulated light source 4 about the axis of a circular photographic plate 2. The source 4 is modulated by an oscillator 10 and supported with its aperture 6 and lens system 5 on a rotatable plate 3. The source is connected to the oscillator by slip rings (not shown in the Figure) and is adjustable radially on the plate 3 so that a number of tracks may be recorded on the plate 2. An exact number of wave-forms per revolution is obtained by stroboscopic means.
Patent GB-1010687-A (GB)
Title: Improvements in pressure-responsive valves
IPC: F15B1/027
Filed: 1964-05-28
Abstract: 1,010,687. Fluid-pressure servomotor systems. ROBERT BOSCH, G.m.b.H. May 28, 1964 [June 6, 1963], No. 22017/64. Heading G3P. A pressure relief valve for a hydraulic system comprises a main valve member 13 controlling relief of fluid from a pump delivery line 2 to a drain line 5. The main valve is opened when a pilot valve 21 is opened in response to increase in pressure above a predetermined value to allow leakage from a chamber 12 through a passage 28 to drain. The pilot valve 21 is loaded by a spring 23 which abuts a piston 25 slidable sealingly in a bore 20. The opposite side of the piston engages a spring 26 which is adjustable by an abutment 27. In operation, the pressure in the drain line 5 which also exists in the bore 20 acts on the piston 25 to reduce the spring loading on the pilot valve when the drain pressure rises thus providing for opening of the pilot valve at a constant predetermined value of the pump output pressure.
Patent GB-1114862-A (GB)
Title: Apparatus for handling sheet material
IPC: B60P1/00
Filed: 1965-05-25
Abstract: 1,114,862. Suction grippers; straddle carriers; pallets. DEAN RESEARCH CORPORATION. 25 May, 1965 [9 June, 1964], No. 22042/65. Heading B8H. A suction gripper head adapted to engage an upper section of a stack of sheets comprises a top plate 13, which is connected by a universal joint 18 to a lifting device, and side walls 20, which are formed with flanges 21 having slots for slidably supporting a sealing strip 22. The slots communicate through a hole 27 in a stop 26 with a cavity 28 connected through a port 29 to a source of pressure and vacuum. The top plate 13 is provided with a port 30 leading to a vacuum source. The number of sheets to be gripped is determined by the position of a levelling plate 14 secured to a piston 15 which is movable in a cylinder 16 mounted on the plate 13. The sealing strip may engage a groove in the edge faces of a pallet, Fig. 5. The head may be mounted for vertical movement on a straddle truck, Fig. 1 (not shown), or may be mounted on a horizontal arm rotatably mounted about a vertical axis on a truck adapted to be driven by means of a rack and pinion along aisles between stacks of sheets.
Patent GB-792894-A (GB)
Title: Improved screw and nut device
IPC: F16H25/22
Filed: 1956-07-17
Abstract: 792,894. Lever and nut gearing. GENERAL MOTORS CORPORATION. July 17, 1956 [Aug. 18, 1955], No. 22069/56. Class 80 (3). In a screw and nut mechanism in which the nut 12 engages the screw 10 through the intermediary of circulatory balls 18 the groove 20 of the screw is gradually cut deeper on each side of a central portion of constant depth which extends for at least 300 degrees of lead on each side of a transverse centre line so as to provide progressively increased play on either side of the central portion where there is substantially no play.
Patent GB-320444-A (GB)
Title: A process for the manufacture of a leather substitute
IPC: C08L89/06
Filed: 1928-07-31
Abstract: 320,444. Gonnissen, J. M. July 31, 1928. Artificial leather.-Leather dust mixed with celluloid dissolved in acetone and ethvl acetate is moulded or pressed and dried and may be impregnated with a wax polish etc.
Patent GB-1531666-A (GB)
Title: Packed rod neutron shield for fast nuclear reactors
IPC: G21C5/00
Filed: 1977-05-26
Abstract: 1531666 Reactor shield WESTINGHOUSE ELECTRIC CORP 26 May 1977 [8 June 1976] 22253/77 Heading G6C A fast neutron reactor core comprises vertical fuel assemblies 26, vertical blanket assemblies 28 containing fertile material and radial shield assemblies 30, each shield assembly consisting of a bundle of closely packed vertical solid cylindrical rods 42 within a thin walled metallic enclosure 40. The shield assembly includes inlet and outlet apertures 48, 50 for the reactor coolant which may be liquid sodium.
Patent GB-222573-A (GB)
Abstract: 222,573. Sj÷÷, A. M. July 4, 1923. Valves controlled by pilot or relay valves.-- A fluid relay adapted for controlling steam or gas pressures, the depth of liquid in a reservoir, the voltage or flow of electric currents, or the temperature in drying chambers &c., is provided with a balanced control valve supported by the diaphragm. The control valve is interposed in the pipe line which conveys actuating-pressure to the main actuating-chamber and controls the exhaust from this conduit while the pressure supply is limited by a restricted orifice. The Figure shows the invention applied to a device for regulating gas pressure. The main valve 35 is opened against the action of a weighted arm 36, by liquid supplied by a centrifugal pump 19 under the control of an auxiliary valve, acting on a piston 23. The double beat auxiliary valve is actuated by a diaphragm 8 subject to conduit pressure and acting through a lever. The lever has a knife edge pivot at one end and is adjustably loaded at the other by a spring 30 bearing against an abutment 31 adjustably mounted on a pillar 50. The auxiliary valve is supported by a diaphragm 28 and has a spindle 13 held by a spring 29 against an adjustable tappet 12 on the lever. The stroke of the diaphragm is limited by a shoulder 33 in the diaphragm chamber and a stop 34 adjustably mounted on the pillar 50. The main valve may be arranged to open when the conduit pressure rises.
Patent GB-366045-A (GB)
Title: Improvements in or relating to picture radio apparatus
IPC: H04N3/08
Filed: 1930-07-24
Abstract: 366,045. Optical apparatus. FRIES, G., Cologne, Germany. July 24, 1930, No. 22374. Convention date, July 24, 1929. Void [Published under Sect. 91 of the Acts]. [Class 97 (i).] A diaphragm, for use in television, comprises four plates 59 .. 62, having projections 67 cooperating with slots 66 on a disc 65, so that on rotating the disc, the aperture 63 is varied.
Patent GB-505070-A (GB)
Title: Improved method of and apparatus for eviscerating and cleaning fish
IPC: A22C25/14
Filed: 1938-07-27
Abstract: 505,070. Dressing fish. AKTIEBOLAGET G. AREHNS MEKANISKA. VERK STAD. July 27, 1938, No. 22399. Convention date, July 28, 1937. [Class 28 (ii)] In the cleaning of fish, the head of a fish is cut off, and the entrails are removed, e.g. are pulled out, before the belly of the fish is cut open to permit the belly cavity to be cleaned by brushing or scraping. The fishes are laid on their sides, and bellies foremost in pockets 2 of a conveyer 1, the heads protruding for removal by a knife 3. The entrails are pulled out by a device 4 and the fishes are then moved by a water-jet 5 until the tails contact with an abutment 6, comprising a bottom plate 20 and an upper inclined plate 21, which positions the fishes for the removal of the tails by a knife 7. The discharge end of the conveyer 1 is covered by a hood 23 which retains the fishes in the pockets until they are supported on their bellies in an overbalanced state, so that when released from the hood they fall over a shoot 25, backs foremost, between obliquely arranged plates 28 which deliver the fishes, bellies upwards, into the pockets 26 of a conveyer 9. The pockets have bent walls 31 secured to plates 27 attached to a chain 29 trained over end sprockets. The end walls or drivers 32 are spaced sufficiently to take the largest fishes to be handled, and the fishes, irrespective of their lengths; each drop into a pocket so that the tail end is foremost and is directly behind a driver 32. Guide flaps 33 on the ends of the plates 28 are pulled together by a spring, the fish being thereby held back until the cut head end is engaged by a driver 32. The belly of the fish is presented accurately by the flaps 33 to a plate 35 of inverted V-section and having a slot 36 in which works a cutter 13 for slitting the belly from the anal opening to the cut head end. The plate 35 is pivotally mounted and is urged downwardly by a spring. The cutter 13 is followed immediately by a spreader 14 which spreads the belly flaps against the walls 31 of the pockets 26. The spreader comprises a beam 37 having a bevelled end which is positioned adjacent to the edge of the cutter 13 and enters the belly cavity as the fish is advanced. The beam is secured to the underside of an arm which is vertically adjustable and is arranged transversely to the conveyer. A yielding rod 44 is secured, at one end, to the beam and, at the other end, to two wing-like spreaders 46 each of which has a pin 46 pivoted in a stationary bracket. The fish is advanced to the spreaders 45 between upright guide plates 48 which are tapered off to project under a vertically movable rotary brush 15 which is associated with a water jet 16. The fishes are discharged into a receptacle 50, over a grating 17 through which some parts of the entrails may drop into a receptacle 18. The shoot 25 may be removed so that unsplit fishes are delivered from the conveyer 1 into a receptacle. The conveyer 9 is driven by a.Geneva mechanism 65. Specification 477,725 is referred to.