baber/WOPTO huggingface dataset:
Patent GB-1271392-A (GB)
Title: Photographic products and dye transfer processes
IPC: G03C8/36
Filed: 1969-07-18
Abstract: 1,271,392. Photographic diffusible dye transfer processes. POLAROID CORP. July 18, 1969 [July 18, 1968], No.36280/69. Heading G2C. A photographic film unit comprises a photosensitive element containing a photo-sensitive silver halide emulsion layer having associated therewith a dye image-providing material and a silver halide desensitizing agent, each of said material and said desensitizing agent being soluble and diffusible in alkali and said agent adapted in the solubilized state to effect desensitization of said photo-sensitive silver halide, an imagereceiving layer that is formed of a polymeric material and is dyeable by the dye image providing material and is permeable to alkaline solution and a dimensionally stable support. The desensitizing agent does not deleteriously effect either the composition of and/or the development of a latent image carried by the emulsion. The dimensionally stable support may be transparent and the image receiving layer may be between the transparent support and the silver halide layer. The dimensionally stable support may be opaque and the silver halide layer may be between it and the image-receiving layer and be capable of being exposed from the side opposite the opaque support. The photo-sensitive element may comprise an opaque support, the photo-sensitive silver halide emulsion layer, the image receiving layer and a transparent support and means for securing the layers in fixed relationship. The film unit may contain an alkaline processing composition e.g. in a rupturable container which may also contain an opacifying agent. The film unit may contain an opaque layer of opacifying agent between the image-receiving and silver halide layers. The desensitizing agent may be in the processing composition or a processing composition permeable layer of the film unit. The preferred desensitizing agent has the formula:- and many others are listed.
Patent GB-761523-A (GB)
Title: Multiple automatic machine for preparing coffee in cups
IPC: A47J31/40
Filed: 1954-12-16
Abstract: 761,523. Coffee machines. BOSSI, E Dec. 16, 1954 [July 28, 1954], No. 36502/54. Class 129 [Also in Group XXVIII] A two cylinder "espresso" type coffee machine has an electric motor to drive both pistons and to actuate the water inlet valves, one hand lever being provided to select first the cylinder filling stroke then the expulsion stroke, and two further hand levers being provided to select the particular cylinder (or cylinders) to be used. The stroke selector lever (Fig. 2, not shown) first rocks the shaft 79, Fig. 1. clockwise from a central position, and by means of a peg 94 slides a plate 122 to the right so that lugs 121 on the plate 122 operate switch 110, Fig. 4c. to start an electric motor (not shown) in the appropriate direction. This motor drives a lead screw 3 via a pulley 14 and friction clutch 21. A nut 2 and three screw threaded rollers (Fig. 2, not shown) engage the screw 3-the nut 2 being resiliently held in a sliding bush b The bush 5 is connected to a piston rod 7 which is connected to both the pistons 23, Fig. 4b, which slide in the two axially aligned cylinders 22. These draw in water from a boiler (not shown) via valves 35, Fig. 4a. Each valve 35 has a disc 38 which can be engaged by a selector lever 43. If selected, the valve is opened by a spring loaded bar 40 which is moved to the right by rotation of a crankshaft 63 Fig. 1 and Fig. 3 (not shown). The crank-shaft 63, Fig. 1, is rotated by a lever 68 which is moved clock-wise by a cam 106 on a slide 65 (as the slide moves from right to left), until it reaches the final position as shown in the drawing. It is held in this position by a detent 77 on selector shaft 79. The slide 65 is connected to the bush 5. Fig. 4c, and so moves with the pistons. The cylinder (or cylinders) have now filled through the selected valve (or valves) and the motor is switched on by lugs 126 engaging switch 110. Lugs 126 are on a plate 127 which, Fig. 1, is also actuated by movement of slide 65 via a pin 128. The selector shaft 79 is now rotated anti-clockwise by the stroke selector lever. Plate 122 slides to the left and lugs 121 close switch 112, Fig. 4c, to start the motor in the reverse direction. Simultaneously the detent 77, Fig. 1, is withdrawn, releasing lever 68 which drops to its vertical position as the return spring 54, Fig. 4a, closes the valves 35 The movement of the lever 68 is damped by a hydraulic dashpot. The reversed motor moves the bush 5 to the left, expelling the water from the cylinders through coffee filters (not shown), and the slide 65 moves to the right (as viewed in Fig. 1) the cam 106 moving only the loose pawl 73 on the now vertical lever 68 as it passes. The stroke completed, the motor is switched off by the lugs 126, Fig. 4c, engaging 112. The switches 110, 112 are interlocked to prevent incorrect operation.
Patent GB-946089-A (GB)
Title: Improvements relating to the production of films
IPC: C09D4/00
Filed: 1961-10-11
Abstract: Films of vinyl ester polymers are made by exposing to oxygen a thin liquid layer of a mixture of a vinyl alkanoate monomer of the formula <FORM:0946089/C3/1> in which R is an alkyl group containing 1-20 carbon atoms, and an aluminium alkyl of the formula R,R1,R11, Al, in which R is an alkyl, R1 is H, Cl or alkyl, and R11 is either H or alkyl, provided that when R1 is Cl, R11 is alkyl. The mixture may also contain a natural or synthetic polymeric material as a thickener, and a monohydric alcohol as an accelerator.  The films are said to be crosslinked through an -O-Al-O-bond. The film may be formed on water, a porous support, or a solid non-porous support. The support may be a panel of white pine, a conventional cleansing tissue, white cloth, glass, glass fabric, brick, aluminium foil, tin plate, or cinder block.  The polymer may be vinyl acetate, vinyl propionate, a copolymer of vinyl acetate and butyl acrylate or a copolymer of vinyl acetate and ethylene dimethacrylate.  The aluminium alkyl may be trimethyl, triethyl, or triisobutyl aluminium, diethyl-aluminium chloride, di-isooctyl aluminium chloride, ethyl aluminium dihydride, or diheptyl aluminium hydride. Thickeners may be polyvinyl acetate, polymethyl methacrylate, polyvinyl alcohol, polyvinyl chloride, casein, polystyrene, natural alginates, natural rubber, polyvinyl butyral, or polyvinyl propionate. The polymerization in situ may be effected in the presence of a solvent such as butane, pentane, hexane, cyclohexane, heptane, octane, benzene toluene, or xylene.ALSO:The surfaces of articles are coated with a vinyl ester polymer by applying to the surface a mixture of a vinyl alkanoate and an organo-aluminium alkyl (see Division C3), and effecting polymerization of the monomer in situ by exposing the layer to oxygen.  The mixture may also contain a natural or synthetic polymeric material as thickener, and a monohydric alcohol as accelerator.  The coating may be applied by brush, spray or dipping. The surfaces coated may be wood, e.g. a panel of white pine, masonry such as brick, or cinder block, glass, e.g. the interior and exterior of bottles, or tin plate.  The polymer may be vinyl acetate, vinyl propionate, a copolymer of vinyl acetate and butyl acrylate, or a copolymer of vinyl acetate and ethylene dimetharylate.  Specified thickeners are polyvinyl acetate, polymethyl methacrylate, polyvinyl alcohol, polyvinyl chloride, casein, polystyrene, natural alginates, natural rubber, polyvinyl butyral, or polyvinyl propionate.  The mixture may also contain a volatile hydrocarbon solvent.
Patent GB-633488-A (GB)
Title: Improvements in or relating to phonographic recording and reproducing apparatus
IPC: G11B5/86
Filed: 1946-12-11
Abstract: 633,488. Dictating machines. SOUNDSCRIBER CORPORATION. Dec. 11, 1946, No. 36563. Convention date, Dec. 22, 1945. Drawings to Specification. [Class 40 (ii)] [Also in Group XXXIX] A phonographic recording and reproducing apparatus comprises a turntable adapted to have a relatively large disc record supported thereon and a smaller disc record supported on the large disc, one of said discs having sounds previously recorded thereon, and means for recording on the other disc selectively either sounds played back from the recorded disc or sounds received from a microphone whereby said other disc will comprise a record from both sources. The Specification describes the circuit arrangement which-includes an amplifier and a loud-speaker for the play-back of recorded sounds (see Group XXXIX]. Specifications 539,534 and 558,552 are referred to.
Patent GB-804522-A (GB)
Title: Steroids and the preparation thereof
IPC: C07D295/096
Filed: 1955-05-17
Abstract: The invention comprises a steroid compound having the formula <FORM:0804522/IV (b)/1> wherein X represents -Cl, -O-CH2-CH2 -Cl, -NH-CH2-CH2-Cl, -CH2-Cl or -CH2-CH2-COOH, and the preparation thereof by treating the corresponding 21-hydroxypregnane-3,20-dione or 21-hydroxy-allopregnane-3,20-dione with an acylating agent, e.g. phosgene, b -chloroethylchloroformate, b -chloroethylisocyanate, chloracetyl chloride and succinic anhydride.  Examples disclose the production of the chloroformate, the b -chloroethyl carbonate, the b -chloroethyl carbamate, the chloracetate and the hemisuccinate of the 21-hydroxy compound.
Patent GB-1513727-A (GB)
Title: Bearing materials
IPC: C08L81/02
Filed: 1974-08-21
Abstract: 1513727 Cured coating of polyarylene sulphide GLACIER METAL CO Ltd 20 Aug 1975 [21 Aug 1974] 36669/74 Heading B2E [Also in Division C3] A polyarylene sulphide polymer is applied to a backing and cured by heating in the presence of oxygen, to form a bearing lining the oxygen being provided by mixing an oxide of copper, tin, lead or manganese with the polyarylene sulphide. In Examples mixtures of polyphenylene sulphide containing manganese dioxide, lead dioxide and tin dioxide are applied to aluminium backings and cured by heating.
Patent GB-915439-A (GB)
Title: Improvements relating to the feeding of bulk materials
Inventor: AMOS JOHN ANDREW
IPC: B65D88/66
Filed: 1960-10-26
Abstract: 915,439. Agitating material in hoppers. SIMON HANDLING ENGINEERS Ltd. Aug. 4, 1961 [Oct. 26, 1960], No. 36799/60. Class 78 (1). Material b is discharged from hopper a through the central aperture shown by the aid of agitating diaphragms c, d. The diaphragms c, d are operated by fluid cylinders e, f controlled by valve g. Air enters by pipe h and is exhausted by pipe i and is distributed by valve g to the two diaphragms so that one diaphragm moves inwards as the other moves outwards to cause a shearing action upon the material within the hopper and so assist its discharge.
Patent GB-757876-A (GB)
Title: Improvements in or relating to stamp pads
Inventor: FRANCIS FREDERICK GEORGE
IPC: B41K1/54
Filed: 1954-12-20
Abstract: 757,876. Inking-pads. CARIBONUM, Ltd., and FRANCIS, F. G. Dec. 20, 1954, No. 36828/54. Class 100(2). A stamp pad comprises two superposed porous components of different resiliencies forming an ink-receiving pad, the pad being so supported on a base that ink may be supplied beneath the lower surface of the pad, whence it is transferred to the upper surface, e.g. at least partly by the pumping action as a stamp is pressed on to the pad; one or both adjacent surfaces of the pad and base may be shaped to promote uniform spreading of the ink supplied. It is stated that the movement of the ink generally upwards prevents dust from penetrating below the top of the pad. As shown, a pad formed of a natural or synthetic polymer, e.g. of porous rubber or expanded nylon, and consisting of an upper relatively rigid sheet 18 and a lower soft resilient sheet 19 which may be initially inked before or after assembly rests on the base 11 of a rectangular box having raised projections such as studs 12 to provide a space 20 into which ink may be supplied via a short polyvinyl chloride tube 22 cut away at 23 and extending into a well 13; the tube passes through a hole 16 in the turned-over top edge of one of the long sides of the box and through corresponding holes in the sheets 18, 19. The box, with its studs and well, may be pressed out of steel sheet or tinplate, or moulded from polyvinyl chloride, and may be provided with a lid, e.g. hinged and with a fastening. For use with large stamps the sheets 18, 19 may be interchanged. In modifications, the studs 12 are replaced by projections on the underside of the sheet 19, by grooves (e.g. a parallel series on the base 11 and sheet 19, the two series being inclined or at right angles), or by a layer of coarse paper, fabric or other absorbent material. Examples are given of suitable non-oil base inks and castor oil base inks for both initial inking and for supply in bottles for re-inking.
Patent GB-785792-A (GB)
Title: Improvements in or relating to garment protectors
IPC: A41D27/12
Filed: 1954-12-21
Abstract: 785,792. Garment protectors. MEAKER, B. Aug. 17, 1955 [Dec. 21, 1954], No. 36921/54. Class 141. A detachable protector for the crotch portion of nether garments comprises a strip of cloth or paper having fastening means at its ends for detachably securing it to the garment and having portions 2c adapted to extend a short distance along the trouser legs. The strip is attached by loops 4 to the rear of the waistband and by a loop 10 to the lowermost fly button of the trousers; alternatively, buttons and bottonholes, press studs, hooks and eyes, zip fasteners or safety pins may be provided as fastening means. If the strip is made of paper, reinforced buttonholes are preferably provided, or, according to the Provisional Specification, thinner paper may be provided at the attachment positions so that buttons can be pushed through the paper.
Patent GB-1432670-A (GB)
Title: Hydraulic motors and pumps process and apparatus for treating road surfaces
IPC: F04B1/20
Filed: 1973-08-03
Abstract: 1432670 Reciprocating pumps and motors HOESCH WERKE AG 3 Aug 1973 [19 Aug 1972] 37033/73 Heading F1A In an axial or radial piston pump or motor, hydrostatic bearings are employed for supporting the cam means in the housing and for supporting bearing means on the pistons. In Fig. 3, roller 13 is supported on piston 11 by arcuate hydrostatic bearing recesses 111 connected, together with a bearing recess 112 in the piston wall, to the working chamber 15. In Fig. 5, swash-plate 16 is supported in guide-member 19 by hydrostatic bearing recesses 161, 162 connected, together with bearing recess 211 supporting member 19, to working chamber 15.
Patent GB-1185127-A (GB)
Title: Process for the Dehydrogenation of Hydrocarbons
Inventor: WATTIMENA FREDDY
IPC: C07C45/00
Filed: 1968-08-02
Abstract: 1,185,127. Dehydrogenating hydrocarbons. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 2 Aug., 1968, No. 37052/68. Heading C5E. Hydrocarbons having the structure in their molecule are directly dehydrogenated at 400-700 C. in the presence of a catalyst containing Cu, Cr, one or more rare earths and/or Mn and/or Fe, and/or oxides, hydroxides, or salts of the metals. The dehydrogenation is applicable both to the reduction of alkanes to alkenes and of mono-olefins to diolefins, particularly butadiene and isoprene. Hydrogen may be present. Examples describe the conversion of isopentane to isopentene and isoprene. Brief reference is made to the application of dehydrogenation to alkyl aromatics and acyclics having C 2 -C 20 .
Patent GB-1060339-A (GB)
Title: Device for subsequently applying an additional recording to a primary recording
IPC: G11B15/60
Filed: 1965-08-31
Abstract: 1,060,339. Tape recording; superimposition. LOEWE OPTA A.G. Aug. 31, 1965 [Sept. 3, 1964], No. 37151/65. Heading G5R. To avoid clicks &c. at the starting and finishing points of an inserted superimposed recording, the erase head 7 is fixed and is not switched and the magnetic tape 3 is lifted away from the head 7 by actuation of the spring-returned button 13 (dotted lines). In the relaxed position of the button 13 (solid lines) the guide 6 acts as a normal tapeguide complementary to the guide 10.
Patent GB-1009325-A (GB)
Title: Improvements in carrying devices for infants
Inventor: PARSONS CHARLES HENRY
IPC: A47D13/02
Filed: 1963-09-21
Abstract: 1,009,325. Infant carriers. KARRIMOR WEATHERTITE PRODUCTS Ltd. Sept. 14, 1964 [Sept. 21, 1963], No. 37217/63. Heading A3V. An infant carrier comprises a tubular frame alpha, alpha<1>, alpha<2> supporting a bag B, a seat C of flexible material being sewn to the bag at c adjacent leg holes b and suspended from the frame by adjustable straps b<1> which may be elastic. If the infant is to face rearwardly the seat C is reversed and the leg holes are provided in the outer side of the bag. Loops d on the bag are threaded on portions a<1> of the frame and adjustable shoulder straps D inserted in ferrules d<1> on the ends of frame portions alpha<1>.
Patent GB-362672-A (GB)
Title: Improvements relating to modulating systems for wireless and like signalling
IPC: H03C1/20
Filed: 1930-12-11
Abstract: 362,672. Wireless transmitting apparatus. KOLSTER-BRANDES, Ltd., Cray Works, Sidcup, Kent.-(Wired Radio, Inc.; 60, Broadway, New York, U.S.A.) Dec. 11, 1930, No. 37383. [Class 40 (v).] Modulation is effected by a push-pull pair of valves VT2, VT3 which amplify the input from the microphone M, the secondary coil of the output transformer T1 being connected in series with the battery B and regulating resistance R2 as the plate supply circuit of a carrier wave generator valve VT1. The battery B is also connected to mid-point on the primary coil of the transformer Tl to give the necessary plate voltage for the valves VT2, VT3. A condenser C3 byepasses the audiofrequency current to the filament of the oscillator. During idle periods, the plate current of the oscillator, and the amplitude of the generated wave are reduced to a minimum, owing to the adjustment of the control resistance R2.
Patent GB-523041-A (GB)
Title: Improvements in or relating to gas producers
IPC: C10J3/80
Filed: 1938-12-23
Abstract: 523,041. Tuyeres for gas-producers. GAS LIGHT & COKE CO., and LAWRENCE, H. M. Dec. 23, 1938, Nos. 37416/38 and 6530/39. [Class 51 (i)] In gas producers more particularly of the type used to supply motor vehicles with fuel the tuyere is axially and rotatably adjustable and has an eccentrically situated air inlet nozzle so that interference of clinker formed with the air blast may be avoided. The tuyere 13 may be formed with a helically stepped sleeve 14 to engage at different levels with a similarly stepped cylindrical support within a sleeve depending into the producer, a cooling water reservoir 21 with heat radiating fins 24, and a cylindrical partition 19 with baffling means 20 separating the convection currents, or the partition may be plane and divide the tuyere into semi-cylindrical portions with means to baffle upward currents in one. The tuyere may also be horizontally arranged in the producer. The first Provisional Specification describes also a tuyere axially adjustable by two toggles arranged diametrically opposite on either side thereof.
Patent GB-1276599-A (GB)
Title: Solid abrading tool with fiber abrasive
IPC: C22C49/00
Filed: 1970-08-04
Abstract: 1276599 Abrasive tools BARNES DRILL CO 4 Aug 1970 [16 Oct 1969] 37496/70 Addition to 1216444 Heading B3D In the tool described in parent Specification the differences in the hardness of the fibres and both the matrix and the workpiece is specified as being at least 250 measured on the Knoop scale.
Patent GB-958955-A (GB)
Title: Improvements in or relating to evaporators
Inventor: CHALMERS THOMAS MARTIN
IPC: C02F1/06
Filed: 1959-11-06
Abstract: 958,955. Evaporators; distilling sea-water. RICHARDSONS WESTGARTH & CO. Ltd. Oct. 27, 1960 [Nov. 6, 1959], No. 37779/59. Heading B1B. In a multi-stage evaporator of the type wherein the liquid-to-be-evaporated, e.g. sea water, is heated by passing it through externallyheated tubes 16 and is then submitted to progressive partial vaporization in a series of flash chambers 10, the vapours so formed being conducted into the heaters 12 in order to preheat the liquid, the tubes of at least two of the heaters are connected in parallel and the liquid to be evaporated is divided into at least two parallel streams prior to its entry into the tubes, these parallel streams being reunited before the liquid is introduced into the first flash chamber. In the evaporator shown in Fig. 3 there are six groups of flash chamber 10a and 10b, associated with heaters 12a and 12b respectively connected in series to form two sets of heaters; and two parallel streams of liquid flow through the tubes 16a and 16b of the heaters. The two streams are then recombined and passed through heat-input section 22. The hot liquid then flows progressively through the flash chambers. In an evaporator having four flash chambers per group, the feed-liquid is divided into four streams. In Fig. 4, the evaporator is provided with a heat-rejection section 28 for reducing the temperature of the part of the unevaporated liquid that is recirculated through the heaters. This heat-rejection section consists of four flash chambers 30 divided into two groups, the cooling medium, e.g. sea water, being divided into two parallel streams 32 and 34 which pass through tubes in heaters 36 and 38 respectively. The inlet-valve 40 may be operated automatically by means 42 sensitive to the temperature of the cooling water or by means 44 sensitive to the temperature of the liquid in one of the flash chambers. After the cooling liquid has passed through the tubes of heaters 36 and 38, part of it enters the last flash chamber 30 through pipe 46, while the remainder is discharged to waste.
Patent GB-534889-A (GB)
Title: Method of darkening the surfaces of light coloured roads and structures
IPC: E01C7/35
Filed: 1938-12-30
Abstract: 534,889. Darkening light-coloured roads and structures. TARMAC, Ltd., and PORTER, H. Dec. 30, 1938, No. 37806. [Class 93] The surfaces of light-coloured roads and structures are darkened, with the object of making them less conspicuous from the air, by applying a bituminous emulsion, weaker than that at present commonly used in road making, and dusting or coating it with a dark powder before the emulsion breaks. An aqueous emulsion, comprising about 30 per cent. of bitumen and an emulsifying agent, is specified. Pulverised coal, and soot, capable of passing through a 100 mesh screen, are stated to be suitable dark powders.
Patent GB-1493849-A (GB)
Title: Sheet-feeding device
IPC: B65H3/02
Filed: 1975-09-15
Abstract: 1493849 Separating sheets LA CELLOPHANE 15 Sept 1975 [18 Sept 1974] 37829/75 Heading B8R Sheets are separated from a pile by fingers 10 which buckle them from under restraining members 6 by movement toward the restraining members. The pile is supported on a table 3 fulcrumed at 5 and biased by counterweights 7 so that the front margin contacts the restraining members. The fingers 10 which may be rubber covered at 11 rest on the pile under their own weight during separating movement but on return movement are lifted from the pile by electromagnet 9.