baber/WOPTO huggingface dataset:
Patent GB-940247-A (GB)
Title: Improvements relating to appliances for saving life at sea
Inventor: GRAINGER STUART EDWARD
IPC: B63C9/23
Filed: 1961-03-02
Abstract: 940,247. Inflatable dinghies and life-saving equipment. SCHERMULY PISTOL ROCKET APPARATUS Ltd. Feb. 28, 1962 [March 2, 1961], No. 7594/61. Addition to 786,436. Headings B7A, B7S and B7U. A modification of the life saving appliance claimed in Specification 786,436 (i.e. an appliance comprising a tubular body and an inflatable bag which fits in the body when deflated and is connected with the body but which when inflated will leave the body and act as a buoy, the body being made of a material which will sink in the water so that it can serve as a sea anchor and/or as a stirrup for supporting a person being rescued) in which the body comprises a partite tubular body at least one part of which is attached to the inflatable bag so that after inflation thereof said one part sinks or floats in the water in a position which gives, in at least one horizontal direction, substantially the maximum resistance to the water flow past said port. In the embodiment of Figs. 1-3 a cylindrical container 1 houses a dinghy 4 which upon inflation causes the container to divide into halves 2 and 3 so that when the inflated dinghy is floating on the water the halves 2, 3 are suspended below it on lines 11 with their cylindrical surfaces in contact and their rectangular openings 6 substantially vertical. In the embodiment of Figs. 4, 5 only one half (e.g. 2) of the container remains attached to the inflated dinghy 4. It is provided with a buoyancy strip 19 and a weight 18, and is attached to the dinghy by a harness 17 and buoyant line 16.
Patent GB-987764-A (GB)
Title: Diffusion transfer photography
IPC: G03C8/06
Filed: 1962-02-27
Abstract: 987, 764. Silver salt transfer process. INTERNATIONAL POLAROID CORPORATION. Feb. 27, 1962 [March 9,1961], No. 7614/62. Heading G2C. A process of forming a negative and a silver transfer image comprises developing an exposed silver halide emulsion with a solution containing an alkali and a silver halide solvent the latter being present in an amount, by weight, at least two times that necessary to obtain only a positive silver transfer image, transferring the image to produce a positive, and separating the positive from the negative; the negative being fully developed and fixed out. The silver halide solvent may be sodium this sulphate and the alkali, sodium hydroxide, and the developer may be enclosed in a rupturable container. The processing liquid remaining on the negative may be removed by treatment with a hardener, e.g. an aqueous solution of an alum which may contain a sulphite. Specifications 684,592, 686,673, 703,231, 783,824 and 789,837 are referred to.
Patent GB-235329-A (GB)
Title: Improvements relating to the axles of motor road vehicles
IPC: B60B27/00
Filed: 1924-03-25
Abstract: 235,329. Creffield, T. R. March 25, 1924. Axles.-For converting the rear axle into a floating axle, a sleeve extension 1 fitting the axle casing carries a roller bearing 2 for the wheel hub which is secured to the outer end 9 of the axle by a flanged cap 8, and the roller bearing is secured upon the sleeve 1 between washers 3, 4 held in place by a spring ring 5. The washer 4 engages the edges of the inner flange 11 of the wheel hub to prevent the wheel coming off the sleeve if the axle breaks.
Patent GB-527910-A (GB)
Title: Improvements in or relating to shoulder straps for golf club bags and other articles
IPC: A63B55/00
Filed: 1939-03-09
Abstract: 527,910. Shoulder pads; coats; carriers for golf bags and other articles. BERLINSKY, A. March 9, 1939, No. 7641. [Class 132 (ii)] [Also in Groups VII and XVII] A shoulder protecting device for use on shoulder straps for carrying golf club bags or other articles or for incorporation in a golf jacket or other garment comprises a pad provided at each end or opposed points with securing means for attaching the pad to the shoulder strap. As shown in Fig. 2, sponge rubber or other padding material 3 is enclosed within a leather casing 1, 2 through which the shoulder strap 5 passes. Press pins and sockets 8, 9 locate the pad on the strap. In a modification, Fig. 4, slotted plates 13 are attached to the pad and carry elastic loops 11 through which the shoulder strap is threaded. Reference has been directed by the Comptroller to Specifications 5166/93, [Class 132], 219,874, 231,879, [both in Class 141], and 411,571, [Group VII].
Patent GB-273370-A (GB)
Title: Improvements relating to transformers and other electrical apparatus and to electric terminals
IPC: H01B17/28
Filed: 1926-03-19
Abstract: 273,370. British Thomson-Houston Co., Ltd., and Trencham, H. March 19, 1926. Transformers. - The insulating bushing of a transformer &c., contains a fuse and an impedance in series between the terminals of the bushing. Insulating tubes 23, 24 within the bushing 3 support a fuse cartridge 30 and an impedance 25 that are connected by spring contacts 34. The upper end of the impedance is connected to a spring button 21 that forms a contact between the movable transformer and the fixed conductor. The inner insulating tubes are covered with tape or other insulation 26, and the surrounding space is filled with insulating compound. An earthing sheath may be provided.
Patent GB-1095280-A (GB)
Title: Bleaching of wood pulps
IPC: D21C9/10
Filed: 1966-02-22
Abstract: Wood pulps containing not more than 60% by weight of cellulose are bleached in an aqueous slurry containing 1-20% by weight based on the dry weight of the pulp, a bleaching amount of at least one reductive bleaching agent and 0.05 - 1% by weight of thiourea based on the dry weight of the pulp, under bleaching conditions at a pH of 2-8.5 and a temperature of 90 DEG  - 300 DEG F for up to 4 hours.  The pulp may be a groundwood pulp or pulp obtained by chemimechanical methods involving softening the wood with aqueous softening agents, e.g. sulphites and bisulphites, prior to mechanical subdivision of the wood into fibres and may be produced from spruce, fir, hemlock, pine, cottonwood, aspen or poplar. The reductive bleaching agent which may be present in an amount of 0.01 - 2% based on the dry pulp weight may be sodium or zinc hydrosulphite, thiourea dioxide or a mixture of an alkali metal borohydride and bisulphite ion.  The thiourea may be added to the slurry prior to or simultaneously with the addition of the bleaching agents.  The pH may be adjusted by the addition of sodium or potassium carbonate or hydroxide and the slurry may also contain sodium tripolyphospate, tetrasodium pyrophosphate or sodium hexametaphosphates or the corresponding potassium polyphosphates, diethylene triamine pentacetic acid or ethylene diamine tetraacetic acid.
Patent GB-158471-A (GB)
Title: Improvements in and relating to mops, and the like cleansing appliances
IPC: A47L13/252
Filed: 1920-03-16
Abstract: 158,471. Austin, A. J. B. C. March 16, 1920. No Patent granted (Sealing fee not paid). Mop wringers; mops; cloths stretched over backings.-Mops or the like of the type provided with a loose collar and adapted to be supported for the purpose of spinning in a recess in a crossbar or the like on a bucket &c., have arms 7, 8, conveniently formed of twisted wire integrally with the collar 6, which rest in recesses 19, 20 in a wire frame 15 sprung over the top of the pail 16. The mop-handle 2 may have a portion of decreased diameter to facilitate spinning between the hands, or the mop may be rotated backwards and forwards by a pair of grips 22 on a wire frame 21. One side of the groove 4 forming the bearing for the collar 6 is formed as an anti-drip flange 5. The wire frame,of the mop-head is pivotally attached to the handle by two rings 11 sprung over a pair of small trunnions 9. Eyes 13, 14 formed on the mop-head frame facilitate the attachment of a duster &c. for cleaning walls &c.
Patent GB-478468-A (GB)
Title: Improvements in and relating to the mounting of electric switches
IPC: H02B1/044
Filed: 1937-03-18
Abstract: 478,468. Mounting switch bases. BULGIN, A. F., and BULGIN & CO., Ltd., A. F. March 18, 1937, No. 7931. [Class 38 (v)] In small switches which are mounted on a panel adapted to be clamped between nuts 2, 5 on a threaded bush 12, the rear nut 5 is locked against rotation by means of screws or rivets 6 which are used to fix the base 15 to a cover part 14 riveted to the bush 12. This prevents the nut 5 being unduly tightened thus causing the bush 12 to be pulled away from the cover 14 when the nut 2 is tightened. In modifications the nut 5 is circular and the rivets engage holes or slots in the nut.
Patent GB-1396655-A (GB)
Title: Explosive cartridge
IPC: F42B3/087
Filed: 1973-02-19
Abstract: 1396655 Laminates CANADIAN INDUSTRIES Ltd 3 Jan 1974 [19 Feb 1973] 7991/73 Heading B5N [Also in Division F3] A casing for an explosive blasting cartridge which is adapted to be circumferentially expanded in a borehole by the application of pressure to one end, comprises a substantially rigid laminated plastic tube composed of: an outer film 2 of polyethylene; a stiffening film 3 formed of regenerated cellulose, cellulose acetate, paper, polyester, or polypropylene; and an optional inner film 4 of polyethylene. The stiffening film 3 is provided with longitudinal weakenings 7.
Patent GB-1046156-A (GB)
Title: Anti-slip means for use on vehicle wheels
IPC: B60C27/08
Filed: 1965-02-24
Abstract: 1,046,156. Tyre traction devices. R. J. KNAPPI. Feb. 24, 1965 [Feb. 24, 1964], No. 8002/65. Heading B7C. A tyre traction device comprises pairs of frames 2, 3, each with a central portion (not shown), shaped to conform with and normally in full contact with the tread surface, the frames being pivotally connected together at 5 so that when the wheel slips the leading frame pivots to a position in which its central portion constitutes a gripping projection. At least one of the pairs of frames may be locked against pivoting by a catch 6 (see also Fig. 3, not shown). Links 4 are so positioned as to return the frames to their normal position when out of contact with the ground.
Patent GB-127861-A (GB)
Title: Improvements in or relating to Nippers or Pliers used for Bending and Ferruling Hard and Soft Wires, and the like.
Inventor: VOKES CECIL GORDON
IPC: B21F9/02
Filed: 1917-06-05
Abstract: 127,861. Vokes, C. G. June 5, 1917. Pliers; prizing-tools.-A pair of pliers for securing ferrules to looped parts of wires, particularly the stiff wires used in aircraft construction, is provided with bifurcated jaws A, B adapted to straddle the wire G and the plate or other attachment C to which the loop D is secured, so that, by closing the jaws, the ferrule E is driven tightly on to the loop. The jaw A is provided with a projection J adapted to engage the end H of the wire and bent it down closely adjacent the ferrule, as shown in Fig. 3. The bending-over of the end H may be effected by using the bifurcated end F of one of the handles of the pliers. In order to permit of the adjustment of the width of the slot in the jaw B to suit plates C of different thicknesses, this jaw may be in two adjustably connected parts. The jaw B is also provided with a recess R to prevent slipping of the loop D. The pivot of the plier arms may be adjustable by placing it in any of a series of holes in the arms.
Patent GB-494088-A (GB)
Title: Improvements in or relating to photographic printing processes and materials
IPC: G03C1/035
Filed: 1937-03-18
Abstract: 494,088. Photographic printing material. RENWICK, F. F. March 18, 1937, No. 8048. Drawings to Specification. [Class 98 (ii)] Sensitive material comprises a support coated on one side with a composite layer comprising two independently prepared silver halide emulsions of different contracts, one a silver bromide or chloro-bromide emulsion, and the other a silver chloride emulsion dyesensitized to visible light to which the other emulsion is substantially insensitive. The material is employed in the method described in Specification 15054/12, [Class 98 (ii)], in which, the colour of the printing light is varied to enable the contrast of the resulting print to be varied. The chloride emulsion is sensitized to green and/or orange by the following dyes 1.3.3 - trimethyl - 2<1> - ethyl - indoxacarbocyanine - iodide, 2.2<1> - diethyl - oxathiacarbocyanine - iodide, and the 1 - phenyl- 3 - methyl - 4 - (1.3.3 - trimethyl - indolylidene - 2) - ethylidene - pyrazole - 5 - one described in Specification 428,360. The two emulsions may be mixed together in a single layer or coated one upon another and a small proportion of silver iodide may be added to the bromide emulsion. The chloride emulsion is such that a pound thereof is equivalent to 5À5 gms. of silver nitrate and the chloro-bromide emulsion contains the equivalent of 9À65 gms. of silver nitrate per pound of emulsion, the bromide : chloride ratio being 63 : 37. The colour of the printing light may be varied by placing before it a filter having blue and yellow segments, and moving the filter by rack and pinion, and the emulsions may be mixed in such proportions that the exposure time does not vary with the colour of the printing light.
Patent GB-372029-A (GB)
Title: Improvements in and relating to threshing machines
IPC: A01F12/44
Filed: 1931-03-16
Abstract: 372,029. Thrashing-machines. LANZ AKT.-GES. H., 53, Lindenhofstrasse, Mannheim, Germany. March 16, 1931, No. 8078. Convention date, March 15, 1930. [Class 58.] A thrashing-machine having a second dressing mechanism c arranged laterally of the thrashing-machine proper and the first dressing mechanism b, has a widened chamber f formed between the sieve g of the second dressing mechanism and the discharge pipe e for the cavings and light impurities. A channel h arranged at the bottom of the chamber f returns any grain that may be carried into the chamber to the thrashing-machine and preferably to the first dressing mechanism. An adjustable flap i regulates the blast passing between a plate m and a lower sieve n. A second flap k permits all material to be blown out of the second dressing mechanism when desirable.
Patent GB-1114015-A (GB)
Title: Azo dyestuff
Inventor: RAAB HANS
IPC: C09B63/00
Filed: 1967-02-21
Abstract: Barium lakes of the dye of formula <FORM:1114015/C4-C5/1> are prepared by reacting the dye preferably in aqueous or aqueous-organic media at 0-110 DEG  C. with a barium salt, e.g. barium chloride, nitrate, acetate or carbonate.  Preferably, the organic solvent is partially miscible with water and may be added before or after the laking process.  The barium salt may be added to the components of the dyestuff before coupling has taken place. A red pigment is obtained.
Patent GB-809634-A (GB)
Title: Layer built electric dry battery
IPC: H01M6/32
Filed: 1957-03-13
Abstract: 809,634. Batteries. BAUER, R. E. March 13, 1957 [March 19, 1956], No. 8235/57. Class 53. An inert battery is composed of a pile of dry cells each of which comprises a cake 2 of depolarizer mixed with electrolyte and separated from a zinc electrode 3 by a sheet of paper 4. The outer face of the zinc electrode may be coated with carbon 5 which forms the positive pole of the adjacent cell. The components are held together by a plastic or other non-conducting ring 6 having flanges 6b, 6c and being of such dimensions that a space is left between the edge 2b of the cake 2 and the wall 6a of the ring. This space may be filled with paper, sponge rubber, cellular plastic or other porous material 7. In a modification, Fig. 1A, the material 7 is omitted and the cake 2 is surrounded by a porous liner 7a. In both forms of cell the ring 6 is provided with an opening 8a from which a flexible tube 8 leads. Moisture in the battery when first assembled may be removed to render it inert by placing the battery in an evacuated oven. Activation is effected by introducing water or electrolyte through the tube 8. Some of the liquid is absorbed at once by the cake 2, the remaining liquid filling the space surrounding the depolarizer and being absorbed gradually. Fig. 3 shows a battery of cells joined in series and bound together by straps 9. The tubes 8 may be attached to tubes 12 leading from a header 11 having at each end a valve 14 and a pipe 16. Activation is effected by first exhausting the battery through the header 11 and pipe 16 and then introducing the electrolyte through the pipe at the other end of the header. Specification 756,998 is referred to.
Patent GB-963111-A (GB)
Title: Improvements in or relating to sifting apparatus
Inventor: WARD ROLAND PERCY
IPC: B07B7/08
Filed: 1962-03-02
Abstract: 963,111. Sifting apparatus. BAKER PERKINS Ltd. Feb. 20, 1963 [March 2, 1962], No. 8255/62. Heading B2H. A sifting apparatus for powdered or granular material comprises a screen 16 mounted within a pressure-scaled casing 5 and pressure reducing means, such as a cyclone 2, on the input side for reducing the pressure of the conveying air to below the conveying system pressure but above atmospheric. An air conveying system at 10 1b/in<SP>2</SP> may be reduced to 3 lb/in<SP>2</SP> in the casing 5. The casing is supported in bearings 6, 7 and given a gyratory motion by eccentric drive means 8. The screen 16 is arranged in the form of a drawer which can be periodically withdrawn from the casing 5 to remove tailings. Material fed into the cyclone is discharged through a flexible duct 4 and over a spreader on to the screen while the main portion of the conveying air is led out through a pipe 3 to a reclaim unit; sifted material is directed through a flexible duct 9 and air-lock discharge device 11 into an air conveyer 12.
Patent GB-535599-A (GB)
Title: Improvements in or relating to photographic cameras
IPC: G03B17/04
Filed: 1940-05-08
Abstract: 535,599. Photographic cameras ; lens mounts. KODAK, Ltd. May 8, 1940, No. 8273. Convention date, Aug. 3, 1939. [Classes 97 (i) and 98 (i)] The focusing mount of a camera objective comprises a focusing sleeve and a lens tube, and is movable into or out of the camera body in relation to a movable focusing member mounted on the body, the focusing member and focusing sleeve being connected by releasable means which is locked in an inoperative position until the objective mount is extended. As shown, a focusing sleeve 16 engages by oppositehanded multiple pitch external and internal threads of a focusing ring 14 rotatably mounted on the camera and the lens tube 20. Rotation of the tube 20 is prevented by pins 21 secured to it and engaging slotted brackets 22, so that rotation of the sleeve 16 causes axial movement of the tube 20 relatively to it whilst it at the same time itself moves into or out from the camera body, thus extending or retracting the lens. When the lens is extended, pressure on the focusing button carried by a bell-crank lever 41, which is pivoted in a housing 26 integral with the focusing ring 14 and has a bifurcated arm 44 engaging a slidable pin 27, moves the pin so that its end engages an aperture in the sleeve 16, thus locking the focusing ring and sleeve together. When the focusing sleeve is rotated from the infinity position, the arm 44 of the lever engages under a flange 61 extending forwardly from the bearing ring 13 in which the focusing ring 14 is mounted, thus holding the lever 41 so that it maintains the pin 27 in locking position. To prevent operation of the locking means until the lens is extended, a pin 50 carried by a spring-pressed lever 51 lies in the path of the arm 44 and prevents movement of the lever 41. When the lens is extended, a flange 60 on the end of the sleeve 16 engages the lever 51 and pivots it so that the pin 50 moves out of the path of the arm 44.
Patent GB-257303-A (GB)
Title: Improvements in tubular fibrous wall plugs
IPC: F16B13/14
Filed: 1925-03-28
Abstract: 257,303. Rawlings, J. J., and Rawlplug Co., Ltd. March 28, 1925. Screw sockets.-Hollow fibrous wall plugs for securing screws (or nails) are provided with an interior lining of a lubricant such as graphite, steatite or grease. Reels g of twisted fibrous strands are arranged round a reel c of paper or textile fabric impregnated with a lubricant. The fibrous strands and the paper are formed into the tubular material, from which the plugs are cut, by passing between a mandrel d and a hole in a guide plate f, the paper being formed into a tube by passing down a conical member e. The mandrel d may be tubular so that pulverulent, pasty or liquid lubricant may be fed through it and the spools g may be mounted on a rotary head to give a spiral arrangement to the strands. Alternatively a length of tubular material formed by the strands may be filled with lubricant, the excess of lubricant being afterwards poured out.
Patent GB-714199-A (GB)
Title: Improvements relating to crystal valves
Inventor: AVERY ROBERT
IPC: H01L23/04
Filed: 1952-04-02
Abstract: 714,199. Semi-conductor rectifiers. BRITISH THOMSON-HOUSTON CO., Ltd. March 10, 1953, [April 2, 1952.] No. 8393/52. Class 37. In a crystal valve comprising a sealed envelope containing a semi-conductor such as silicon or germanium in point contact with a "cats whisker," the envelope 2, which is cup shaped and of vitreous material, has a conductor i passing through an air tight seal to one electrode, and its open end 3 is a sliding fit over a metal plug 5 which may be adjusted to give the desired point contact and then secured by fusing a low melting point metal in the space between the plug 5 and a metal film on the wall of the envelope. The solder which also forms an effective seal may be melted by induction or by a heating coil 8, and the base 5 is made sufficiently massive to prevent damage by heat to the semi-conducting flake 4.
Patent GB-181504-A (GB)
Title: Improvements in electric rheostats
IPC: H01C10/02
Filed: 1921-03-17
Abstract: 181,504. British Thomson - Houston Co., Ltd., (Soc. d'ElectricitÚ et de MÚcanique). March 17, 1921. Controllers, liquid.- Rheostats for establishing a progressive growth of current, such as those used for starting electric motors, have electrodes embedded in a solid electrolyte which liquefies and automatically decreases in resistance on the passage of a current. The electrolytes specified are salts such as sodium carbonate for low voltages, sodium sulphate for higher voltages, oxides and hydrates of the alkali metals, and carbohydrates such as sucrose and glucose. The container is hermetically sealed and may be mounted on the motor shaft, and may be built up for use with three-phase motors. Specification 9842/04, [Class 37, Electricity, Measuring &c.], is referred to.
Patent GB-754556-A (GB)
Title: Improvements in or relating to telescopic aerials
IPC: H01Q1/10
Filed: 1954-03-23
Abstract: 754,556. Aerials. COLE, Ltd., E. K., and LEVI, J. E. March 23, 1955 [March 23, 1954], No. 8405/54. Class 40 (7). The invention relates to telescopic radio aerials suitable for use on road vehicles and subject to vibration when so installed. Unless made to close tolerances, which is comparatively expensive, such aerials have a tendency to rattle when other than completely extended. To prevent such rattling according to the present invention a longitudinally split tubular sleeve of resilient material is housed inside the outer one of each pair of cooperating sections to stop the inner section of the pair knocking against the outer. The sleeve must be sufficiently rigid to prevent it buckling up within the aerial but not so rigid as to present a solid wall and be responsible for rattle on its own account. The embodiment described relates to the application of the invention to a two-section telescopic aerial comprising a lower tubular element A fitted on a mounting B and an upper solid section D. The top of the lower section is provided with a collet C which exerts a friction grip on the part D and makes electrical connection between the two sections. Above the collet C is a moisture-proof packing consisting of a cork sleeve between plastic washers. The rod D is swaged at E to prevent complete withdrawal through the collet C. According to the invention a longitudinally split sleeve H of semi-rigid polyvinyl chloride is housed against the inner wall of element A and extends the whole distance from the collet C to the mounting B to prevent rattle when the aerial is closed or only partially extended.