baber/WOPTO huggingface dataset:
Patent GB-632174-A (GB)
Title: Gelatin compositions of increased viscosity
IPC: C08F8/12
Filed: 1946-11-01
Abstract: The viscosity of gelatin solutions is increased by incorporating therein (a) a copolymer derived from a monomer of the formula <FORM:0632174/IV (a)/1> wherein X is an acyloxy or carbalkoxy group, and maleic anhydride, maleic acid or a maleate or (b) a terpolymer derived from a monomer of the formula <FORM:0632174/IV (a)/2> wherein Y is hydrogen or methyl when X is a carbalkoxy group and Y is hydrogen when X is an acyloxy group, acrylic acid or an a -alkyl acrylic acid and maleic anhydride.  The copolymer or terpolymer is after treated with water or an alcohol, e.g. methyl, ethyl, butyl, dodecyl, benzyl or cyclohexyl alcohol, at elevated temperature when maleic anhydride is used as a co-monomer. Alternatively the alkali metal salts of these resins may be used. Resins specified are copolymers of vinyl acetate or methyl acrylate and maleic anhydride, the sodium salts of copolymers of vinyl acetate and maleic acid or maleic acid monoethyl ester; terpolymers of vinyl acetate, methyl acrylate or methacrylate, acrylic acid or methacrylic acid and maleic anhydride.  In examples, (6) a solution of vinyl acetate and maleic anhydride in acetone or dioxane containing benzoyl peroxide is heated under reflux and the resin precipitated by pouring into benzene or toluene.  The resin is then boiled with water or dissolved in acetone or dioxane and refluxed with ethyl alcohol; (7) a terpolymer is similarly prepared from vinyl acetate, acrylic acid and maleic anhydride and boiled with water or refluxed with butyl alcohol.  The resin may be incorporated with the gelatin solution or silver halide gelatin emulsion at any stage during their preparation.  The modified gelatin solutions may be used as over-coatings or backing layers on photographic films, e.g. as filter or anti-halation layers containing dyes.
Patent GB-831519-A (GB)
Title: Roof structures
Inventor: OVERTON ARTHUR
IPC: E04D13/16
Filed: 1957-10-18
Abstract: 831,519. Roofs. SNAPDEK Ltd. Oct. 7, 1958 [Oct. 18, 1957; Nov. 21, 1957], Nos. 32555/57 and 36279/57. Class 20(4) A roof is covered with corrugated sheeting as disclosed in Specification 769,526 [Group X] in which the lower ends of the sheets 9 are provided with a depending flange 12 formed by bending back the sheeting between the ribs 9a and securing separate pieces of material in the gaps left at the ribs. Insulation material 7 is provided. A turned up portion 14 is formed in the same way as flange 12 and lies under flashing 15.
Patent GB-629812-A (GB)
Title: Improvements in or relating to chairs for children
IPC: A47D13/04
Filed: 1947-12-10
Abstract: 629,812. Nursery seats. EUSTACE, K. Dec. 10, 1947, No. 32571. [Class 52 (ii)] [Also in Group XV] A child's chair comprises a lower and an upper circular frame connected by uprights 3 the upper frame I being of less diameter than the lower frame 2, a childs' seat 7 of flexible material having leg holes 9 being suspended from the upper frame by springs 8 or other means. Castors 6 may be provided and the side uprights 3 may be removable for packing and transport purposes.
Patent GB-1084598-A (GB)
Title: A method of making passivated semiconductor devices
IPC: H01L23/29
Filed: 1965-07-30
Abstract: 1,084,598. Semi-conductor devices. RADIO CORPORATION OF AMERICA. July 30, 1965 [Aug. 7, 1964], No. 32673/65. Heading H1K. Passivated semiconductor devices are made by forming a planar PN junction parallel to the major surfaces of a wafer of semi-conductor, forming grooves in one major surface to cut through the PN junction and thus give a plurality of mesas, filling the grooves with passivating material and attaching electrodes the exposed portions of the mesas. The major surface which is not grooved is fixed to a conductive substrate. A p<SP>+</SP> type substrate 22 of Si, has semi-conductor wafer of Si, Ge or GaAs containing a PN junction joined thereto by a layer 24 of Cr, Ni, Ta, W, Nb, Mg, Ag, Co, Cu or Ti. The wafer and substrate are joined by hot pressing in an induction furnace between carbon blocks. Grooves are then cut in the wafer to give mesa portions 40, the sides of which are coated with SiO 2  44 and then the grooves filled with glass 46. The exposed surfaces of the mesas and the substrate are coated with electroless nickel and then solder applied. Electrodes are applied and soldered in place using a carbon jig (Fig. 8, not shown). The structure may then be cut vertically into a number of separate devices. In a modification a horizontal cut may be made prior to applying the lower electrode, to cut away the connecting substrate portions. Instead of joining individual electrodes in the array of devices, a plurality of devices may be joined by one conductive strip for use in integrated circuits.
Patent GB-1462586-A (GB)
Title: Process for the manufacture of moulded plastics
IPC: C08L67/06
Filed: 1975-08-06
Abstract: 1462586 Moulded plastics BAYER AG 6 Aug 1975 [8 Aug 1974] 32845/75 Headings C3B and C3P  A moulded plastic article is prepared by introducing into a mould, maintained at a temperature >70‹ C., a liquid casting composition comprising from 10-70% by wt. of an epoxy resin, 10-70% by wt. of a cyclic anhydride of a C 4-9  dicarboxylic acid, 10-60% by wt. of an unsaturated polyester resin and 5-50% by wt. of styrene, the sum of the percentages being 100%. The composition is maintained under pressure in the mould until it solidifies. The liquid casting resin may be introduced into the mould by a pressurized gas. The composition may comprise a filler, e.g. quartz powder. The composition may contain at least one hardening accelerator, e.g. a tertiary amine and/or an organic peroxide. A reaction retarder, e.g. phenol, may also be present.
Patent GB-1097208-A (GB)
Title: A method of sampling and a device therefor
Inventor: FIRMAN ALAN FREDERICK
IPC: G01N1/00
Filed: 1965-07-31
Abstract: 1,097,208. Sampling liquids. DISTILLERS CO. Ltd. July 18, 1966 [July 31, 1965], No. 32886/65. Heading B8N. A sampling device for introducing a sample of liquid into a carrier gas, such as for chromatographic analysis, comprises a valve having a body 2 and a slide 1 and provided with passages 11 to 17 and cavities 22, 23, 25, 26 respectively, the passages and cavities, when placed in communication, forming three chambers through which fluid can flow. When the valve is in the position shown, a solvent is continuously fed through passage 11, cavity 22 and passage 17 to a solvent receiver, the liquid to be sampled is continuously fed through passage 16, cavity 25 and passage 15, and a carrier gas such as helium, is continuously fed through passage 12, cavity 23, passage 13, cavity 26 and passage 14. Upon moving the slide into its alternative position (Fig. 2), the solvent flows through a cavity 21, and the liquid to be sampled through a cavity 24. The pressure of the carrier gas then forces the solvent in the cavity 22 into the cavity 25, thereby forcing the liquid in the latter cavity into the main carrier gas stream so as to be fed to e.g. a chromatographic column. The solvent from the cavity 22 on transfer to the cavity 25 dissolves any liquid remaining therein. The body may be of stainless steel and the slide of P.T.F.E.
Patent GB-761954-A (GB)
Title: Improvements in and relating to bearings
IPC: F16C11/08
Filed: 1954-11-12
Abstract: 761,954. Pivoted joints. THOMPSON PRODUCTS, Inc. Nov. 12, 1954 [May 25, 1954], No. 32892/54. Class 65 (2). [Also in Group XXXIV] A bearing comprises a non-metallic plastic material anchored in the pores of a porous metal bearing member, the plastic material - extending beyond the surface of the porous metal in the form of a myriad of separate nubbles so as to provide a discontinuous plastic bearing surface. In a ball-and-socket joint, shown in Fig. 1, the ball comprises a member 13 of the plastic-impregnated porous metal. A metal stud 14 is rotatably mounted in a bore in the ball 13 and has a lower flanged portion 32 which is maintained in contact with the member 13 by a spring-pressed washer 15. The housing has a metal lining 12 and the bottom is closed by a metal disc 17. In a modification, the bore of a metal spherical member 131 has a tubular insert 40 of plastic-impregnated porous metal and a washer 42 of similar plastic-impregnated material is disposed between the bottom 29<SP>1</SP> of the member 131 and the flanged portion 33 of the stud 14. Another such washer is spring-pressed against the rounded end 34 of the stud 14.
Patent GB-995592-A (GB)
Title: Improvements in and relating to wire binding appliances
IPC: E04G21/12
Filed: 1963-08-21
Abstract: 995,592. Twisting wires together. ROBERT BOSCH, G.m.b.H. Aug. 21, 1963 [Aug. 22, 1962], No. 33029/63. Heading B3E. A motor-driven wire binding appliances for looping wires about reinforcing rod for concrete structures is characterized in that a pair of wires necessary to form the loop are cut from a supply and their ends twisted together by two driven, spaced-apart, axially aligned twisting tools, each tool having two clamping jaws, each of which grips one of the wires, the wires being guided along channels arranged on opposite sides of the rods to advance between the jaws of the first twisting tool, pass around the reinforcing rods to be wired together, and then enter the jaws of the second twisting tool. Wires 25, 26 from reels, Fig. 1 (not shown), mounted on the appliance are fed by intermittently driven pulley members 90, 91 having notched grooves which cooperate with rollers (not shown) through guides 23, 24, through jaws 17, 18 in an upper twisting tool 14, past reinforcing rods 28, 27 and into semi-conical guide pockets 29, 30 at the ends of clamping jaws 19, 20 of a lower twisting tool 15. The upper tool 14 is adjustable to and from the tool 15, being locked in position by a clamping screw 33. The tools 14, 15 are rotated by a shaft 16 to twist the wires 25, 26 together above and below the rods 28, 27, the wires being severed from their supply by the co-operation of bores 38, 39 in the rotation tool 14 with bores in a non-rotating plate 37. To start the operation a switch 40 is actuated to switch on an electric motor, to lift a dog 42 free from a disc 45 fixed on a cam-shaft 5 and to clutch a gear 48, driven from the motor drive shaft 50 through gearing (not shown) to the disc 45 and rotate the shaft 5 for one revolution. A gear 58 splined on a shaft 11 is also driven from the shaft 50. The shaft 5 carries a camplate 66 with cam surfaces 67, 68 which engage pins 76, 77 on a member 79 to engage and disengage a coupling 60 in the drive to the twister shaft 16, a pin 96 on the member 79 engaging a bore 97 in the coupling 60 to stop the twister in the correct position. The shaft 5 also carries a cam 75 rotationally adjustable relative to the cam 66 by moving a sleeve 71 longitudinally, by a handle 73, a ball 70 carried by the sleeve engaging a longitudinal slot in the cam 75 and an oblique slot in the hub of the cam 66. The cam 66 engages a pin 78 to move the member 79 to engage a coupling 61 in the drive to the wire feed pulleys 90, 91.
Patent GB-1070476-A (GB)
Title: Improvements in or relating to gas leak detection apparatus
Inventor: EDMUNDS ALAN OAKLEY
IPC: G01M3/22
Filed: 1964-08-14
Abstract: 1,070,476. Measuring gas leakage rate electrically. TWENTIETH CENTURY ELECTRONICS Ltd. Oct. 1, 1965 [Aug. 14, 1964], No.33153/64. Heading G1N. Each of a series of sealed bodies 4, filled with a probe gas is sequentially tested for leakage by inserting it in a test chamber 3, via an inlet valve 5, and using a mass spectrometer to measure the partial pressure of probe gas pumped from the test chamber via an associated chamber 1 by means of a diffusion pump 7, a control circuit 17 being provided to increase the pumping rate by means of an actuator 11 if the partial pressure of the probe gas rises above a predetermined magnitude. This prevents an excess of such gas in the chambers 1 and 2, when the valve 5 is opened by automatic timing means to insert a second sealed body 4, to be tested. The pumping rate is controlled by a butterfly valve 10, and if the maximum pumping rate is insufficient to reduce the gas partial pressure before the valve 5 is next due to be opened, a second output 18, of the control circuit, interrupts the operation of valve 5 until the partial pressure has fallen below the predetermined value. If the total pressure in the chambers, as determined from a gauge 19 and indicated at 16, is excessive, the control circuit 17 again interrupts the opening of valve 5 until the pressure has fallen sufficiently. A second indicator, 15, shows leakage rate as obtained from the spectrometer output.
Patent GB-192870-A (GB)
Title: Improvements in or connected with carriages for transporting coal-cutting machines in mines
IPC: E21C33/02
Filed: 1921-12-10
Abstract: 192,870. Mavor & Coulson, Ltd., and Mavor, J., B. Dec. 10, 1921. Wagons.-Relates to a carriage for transporting coal-cutting machines of the type wherein a platform 1 is pivoted so as to rest on the ground to permit the machine to be loaded on the carriage, or unloaded, by its own haulage gear 3, and comprises the provision of an auxiliary incline adapted to engage parts at the head of the machine so as to hold the machine substantially horizontal during loading or unloading. In the form shown, H or U section rails C with a horizontal part 6 and an inclined part 5 are attached to pivots 7 on the carriage and engage studs 9 on the machine head during loading or unloading. After loading, the rails are dismounted, attached to rear pivots 8 and supported either on the front pivots 7 or on the studs 9.
Patent GB-1497122-A (GB)
Title: Vehicle trailer hitch device
IPC: B60D1/52
Filed: 1975-08-11
Abstract: 1497122 Ball-and-socket couplings OTTO RIEHLE 11 Aug 1975 33431/75 Heading B7T A ball coupling device, Fig. 1, for use in coupling a trailer to a towing vehicle, comprises a mounting 1 for fastening to the rear of the towing vehicle and a coupling ball (not shown) provided on a ball neck 3 detachably securable to the mounting 1, wherein a holding part 4 fixed to the neck 3 may be slid laterally on to a carrier plate 2 fixed to the mounting 1 to engage with edges 10, 11 of the carrier plate and wherein locking means are provided for positively securing the holding part in position on the carrier plate in the direction of lateral sliding. In the embodiment of Fig. 1, the locking means takes the form of bolts 12 which are screw threadably engaged in the holding part 4 so that the ends of the bolts may be brought into engagement with depressions (13), Fig. 2 (not shown) in the carrier plate 2. In the embodiment of Fig. 3 (not shown), the bolts of the locking means are spring loaded into engagement with depressions of the carrier plate. In the embodiment of Fig. 4, the locking means comprises a pivotally mounted device 22 having arms 23 which locate around the carrier plate 2.
Patent GB-982358-A (GB)
Title: Rotary piston diesel engines
IPC: F02B53/00
Filed: 1963-08-23
Abstract: 982,358. Rotary engines. BETEILIGUNGS UND PATENTVERWALTUNGSGESELLSCHAFT. Aug. 23, 1963 [Aug. 25, 1962]. No. 33558/63. Heading F1F. A rotary-piston compression-ignition internal-combustion engine of the trochoidal n and n+1 lobe type comprises a recess 5 in each working face of the piston 3 into which fuel is periodically injected through a nozzle 2 situated adjacent a portion 4 of the inner peripheral surface of the housing 1 for the piston between lobes formed therein. The jet of fuel issues from the nozzle at an angle of not more than 30 degrees relative to the said inner peripheral surface. The bottom of each recess comprises three sections 6, 7, 8, section 6 providing clearance for the jet whilst section 7 is so shaped and situated with respect to section 6 that substantially the whole of the injected fuel impinges upon it without wetting section 8. As shown in Fig. 2, section 7 is flat and has a length sufficient to prevent the fuel wetting section 8, both end sections 6 and 8 comprising two divergent portions. Alternatively, section 7 may be of cylindrical configuration (Figs. 3, 4), section 6 having a divergent shape similar to that of the jet of fuel whilst section 8 has two divergent portions spaced apart by a distance equal to the width of the jet of fuel. In a further modification (Figs. 5, 6, not shown) the recess has a configuration to that shown in Figs. 3, 4 save that section 6 has two divergent portions as shown in Fig. 2.
Patent GB-323319-A (GB)
Title: Improvements in or relating to fastening devices
IPC: E05C19/10
Filed: 1928-11-16
Abstract: 323,319. Andre, T. B. Nov. 16, 1928. Hook fastenings; stud-and-eye fastenings. - A fastening device made of rubber has hard vulcanized end portions, the intermediate portion being flexible. Alternatively, the end portions may be reinforced with a woven fabric &c. core,. or, according to the Provisional Specification, with wire. Fig. 1 shows the invention applied to a motor-car bonnet fastening. The device comprises a hard vulcanized or reinforced base C, which may have a metal case C<2>, serving for attachment to the chassis by screws C<1>. Alternatively, a pivoted attachment may be provided. The intermediate portion A is flexible and may be provided with a swelling D serving as a buffer. The free end above line B, B has a hard vulcanized or reinforced finger-piece A<2> and and eye A<1> adapted to engage a stud &c. on the bonnet. The eye may be further reinforced by a metal eyelet sprung into place and the fingerpiece may be in the form of a loop. Fig. 6 shows a cabin hook comprising a hand base J<3> which may be tapered to fit in a corresponding fixture M, and a hardened free end with lateral projections J<1> and a hook J<2> adapted to engage a staple of ordinary type, not shown. The fastening device may be formed on the end of a flexible or elastic strap.
Patent GB-464653-A (GB)
Title: A process for the preparation of artificial asphalts
IPC: C10C3/08
Filed: 1935-12-04
Abstract: Artificial asphalts having reduced temperature susceptibility (i.e. reduced ratio of penetration at a higher temperature to penetration at a lower temperature) are produced by blending a material containing over 20 per cent of asphaltenes with a hydrocarbon oil of low viscosity (i.e. between 30 and 150 secs. and preferably between 50 and 70 secs.  Saybolt Universal at 210 DEG  F.) and of viscosity-index below 0, and/or having a viscosity-gravity constant above 0,9.  Suitable low viscosity oils are obtained as extracts of hydrocarbon oils with selective solvents for non-paraffinic hydrocarbons.  The blended material may be airblown to reduce the susceptibility.  The ductility of the blown material may be increased by blending it with a highly viscous hydrocarbon oil of low viscosity-index, which oil may itself contain asphaltic bodies, with or without a small quantity of naphthalene which lowers the melting point.  Optional additions are rosin, gum, polymerization products from certain cracked distillates, and asphaltic resins obtained by fractional extraction of cracked residues with light paraffins.  The asphaltene material may be obtained from crude asphaltic materials by distillation, precipitation by light hydrocarbons, or oxidizing distillation, and preferably contains 25--35 per cent of asphaltenes. The low viscosity oil is preferably obtained as an extract from distillate or residual oils of initial boiling point below 250 DEG C. with a selective solvent or solvents for non-paraffinic hydrocarbons, e.g. sulphur dioxide, nitrobenzene, phenol-cresylic acid, b b <1>-dichlorethyl ether, furfurol, quinoline, isoquinoline, chlorphenols, with or without aromatic diluents.  Illustrative proportions specified are 75 to 15 per cent of asphaltene-bearing material blended with 25 to 85 per cent of low viscosity oil.  The highly-viscous oil for improving the ductility may be an extract obtained from hydrocarbon oils, coal-tar oils, shale-oils, &c. with solvents for non-paraffinic hydrocarbons; the viscosity should be over 350 sec., and preferably over 500 sec.  Saybolt Universal at 210 DEG  F., the viscosity-gravity constant should be over 0,900 and the softening point over 90 DEG  F.  Illustrative proportions are 1 part of the highly viscous oil to 3 parts of the blended and blown artificial asphalt (Example 3); 28,5 per cent highly viscous oil, 66,5 per cent blended and blown artificial asphalt, and 5 per cent naphthalene (Example 4); and proportions of naphthalene from 1 to 15 per cent of the final product.  U.S.A. Specifications 1,881,753, 1,889,365, 1,948,296, and 1,988,715 are referred to.
Patent GB-1310973-A (GB)
Title: Camera with a retractable lens barrel
IPC: G03B17/04
Filed: 1970-07-10
Abstract: 1310973 Camera lens mountings FUJI PHOTO FILM CO Ltd 10 July 1970 [11 July 1969] 33695/70 Heading G2A In a camera with a retractable lens 8 on a mounting plate 7, movement of a slide 1 laterally to the optical axis advances plate 7 along shafts 10, 11 to an operative position abutting stops 12, the movement of slide 1 being transmitted to plate 7 by a cam slot 1a, 1b, 1c engaged by a follower on lever 2 pivoted at 3, the other end of the lever and its counter-part lever 4 being connected to plate 7 through a spring loaded lost motion coupling.
Patent GB-1222456-A (GB)
Title: A current-limiting circuit breaker
IPC: H01H9/38
Filed: 1969-07-04
Abstract: 1,222,456. Automatic circuit breakers; electrodyriamically operated switches. MERLIN GERIN. 4 July, 1969 [5 July, 1968], No. 33723/69. Heading HlN. A circuit breaker comprises a movable contact arm 10, Fig. 4, connected by a current loop 16 and pivoted at 28 to a fixed support 30, 46 held by a pivoted actuator 34, 36 or latch 48, 50 whereby the electrodynamic forces in the loop 16 at first assist spring 33, and increase the pressure at contacts 18, 22 until the arcing contacts 20, 24 engage. After release of the latch 48, 50 due to electrodynamic forces in loop 16, support 30, 46 pivots freely at 32 whereby the electrodynamic forces in loop 16 assist spring 33 to force the contacts 18, 22 open. Electrodynamic release is obtained as a result of forces in the loop 16 which at first urges the latch rollers 48, 50 downwards against the action of a compression spring 64 tending to urge pivot 39 of arm 54 upwards by urging an elongation of linkage 60, 62. After limited movement, stop 70 of arm 54 positively engages extension 66 of link 62 whereby roller 50 is released from roller 48. This arrangement provides for a limited rise in current through loop 62 whereby roller 50 begins to move but can be returned to its initial locked position by the spring 64 if the current falls. A number of similar circuit-breakers may be linked through shaft 34 for simultaneous manual or an unspecified tripping operator or electrodynamic release. Manual or latch release of shaft 34 rotates the circuit breakers to the open position (Fig. 8, not shown) by lowering pivot 39 and roller 50 to release the support 30, 46 without release of the associated latch roller 50 from roller 48. In a modification the latch system comprises a spring-pressed plunger 92, Fig. 16, in a recessed housing 78. Electrodynamic forces in loop 16 or movement of actuator 34 causes plunger 92 to tilt out of recess 78 into recess 80 whereby pivot 28 and support 30 are released to move clockwise about pivot 32 and allow the contacts 18-24 to open under action of the spring 33 assisted by the electrodynamic forces in loop 16.