baber/WOPTO huggingface dataset:
Patent GB-1096411-A (GB)
Title: Improvements in or relating to the production of cutting edges
Inventor: HANSOM BERNARD STEPHEN
IPC: B23H9/08
Filed: 1963-08-02
Abstract: <PICT:1096411/C6-C7/1> A cutting edge is formed or finished on razor blade strip in continuous form or razor blade blanks on a conveyer belt by selective electrolytic metal removal.  The electrolyte may comprise phosphoric acid with chromic acid or glycerol. Additives may be included to control conductivity and inhibit decomposition of the bath and degassing may be assisted by the inclusion of a wetting agent. During the electrolytic removal the body of the blade or strip is protected from the electrolyte. Typically a razor blade strip 9 is passed lengthwise through a conductive tube 10 to which cathodic connection is made, the strip resting on a spring mounted platen 20 to which anodic contact is made outside the tube and being pressed against a conducting cover strip 21, platen 20 and cover strip 21 being insulated from the tube by insert 22, 23 and masking the body of the razor blade strip from the electrolyte which is fed by a pump along the tube and externally recirculated.  After the metal removal step the strip is washed and dried. Projections 10f, extending to within 20 mils of the edge of the strip, of which only 3 mms. at each margin may be uncovered, are provided if both forming and finishing of the cutting edge is to be effected.  For finishing only, the projections 10f may be dispensed with A. C. or A. C. super-imposed on D. C. may be used instead of D. C. and the power supply may provide a constant voltage, constant current or a cyclically varying voltage. A typical current density used is 200 amps/sq.in. Forming of the blade may be effected by impinging jets of electrolyte from one or both sides of the non-immersed strip.  A blade with a gradual convex curvature towards the tip may be obtained. The process may be applied to making single edged blades or cutting edges comprising a small metal insert in a supporting body of plastic or ceramic, while the apparatus shown may also be used for cleaning the strip.
Patent GB-500940-A (GB)
Title: Improvements relating to flux applying mechanism for side seams of can bodies
IPC: B23K1/16
Filed: 1938-10-24
Abstract: 500,940. Soldering. AMERICAN CAN CO. Oct. 24, 1938, No. 30735. Convention date, Dec. 16, 1937. [Class 83 (iv)] Flux-applying mechanism.-A can body making machine including a mandrel A along which are advanced can bodies having side seam hooks C, is provided with flux applying mechanism comprising a receptacle G for liquid flux on which is mounted a flux applying wheel E having a peripheral groove adapted to receive a can body side seam hook and deposit flux on both its inner and outer surfaces. Flux is fed to the-wheel E bv a roller 58 rotating within the receptacle G and formed with a plurality of angularly disposed pockets 68 which carry up the flux as the roller rotates and which empty their contents on to the top of the edge of the wheel E. The flux is spread out to a predetermined thickness by a scraper 71 and also enters the peripheral groove D of the wheel. At the opposite side of the wheel, the groove D receives the hook C of the side seam so that flux is deposited on both sides of the hook.
Patent GB-374762-A (GB)
Title: Improvements in a brake
IPC: F16D65/42
Filed: 1931-11-06
Abstract: 374,762. Internal expanding brakes. FORD MOTOR CO., Ltd., 88, Regent Street, London.-(Assignees of Farkas, E. J.; 16516, Westmoreland Avenue, Detroit, Michigan, U.S.A.) Nov. 6, 1931, No. 30837. Convention date, March 16. [Class 103 (i).] In wear-compensating means for brakes of the type comprising a pair of aligned studs or pins 29 slidably supported in the brake anchorplate 12 and adapted to be forced apart by a manually-operated adjusting-member between their inner ends so as to act on the ends of brake shoes 15, each stud is slotted at one end 30 to engage the end of the web 16 of the corresponding shoe so that when the shoes are expanded radial movement of the shoes relatively to the axes of the studs 29 is permitted and relative axial movement prevented by a spring 32. Each stud 29 is formed with a diagonal chisel edge at one end to engage the notched conical head 26, 27 of the adjusting- member which has a shank 24 screwed into a bore 23 in the anchor-plate 12 so that when rotated it also moves axially to take up clearance. A plug 28 closes the bore 23 which may form a lubricating-chamber for the adjusting-member. By providing a stop between the opposite applied ends of the shoes a fixed clearance may be maintained between the shoes and the drum with the aid of additional return springs. The braking-flange 10 of the brake-drum may be made separate from the web 11. An annular dust-plate 14 encloses the drum.
Patent GB-759815-A (GB)
Title: An optical inspection device
Inventor: BIGGS RAYMOND HENRY
IPC: G02B21/00
Filed: 1950-12-18
Abstract: 759,815. Optical gauging-apparatus. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. Dec. 17, 1951 [Dec. 18, 1950], No. 30837/54. Divided out of 759,751. Drawings to Specification. Class 106 (2). [Also in Group XX] Part of the profile of an elongated object, such as a turbine blade, on a chosen cross-sectional plane oblique to the axis thereof, is examined by illuminating the object around said part profile, viewing the object in a direction substantially normal to said oblique plane and comparing the part profile as viewed with a representation of the correct profile. The viewing may be effected by projection using apparatus as described in the parent Specification, in which there is a discontinuity of illumination at the section plane, or by projection with apparatus in which only the section plane is illuminated.
Patent GB-451555-A (GB)
Title: Improvements in the attachment of knobs, handles or other furniture to walls, doors or the like
IPC: E05B1/00
Filed: 1935-11-07
Abstract: 451,555. Knobs and handles. NAAMLOOZE VENNOOTSCHAP IJZERHANDEL I. M. DE VRIES, 6, Rokin, Amsterdam. Nov. 7, 1935, No. 30842. Convention date, Nov. 10, 1934. [Class 52 (i)] Knobs or handles are secured by a screw cap 12 to a fixing plate 9 which has a non - rotatable plug - and - socket engagement with the shank 16 of the article.
Patent GB-1025614-A (GB)
Title: Improvements in connectors for structural members
IPC: E04B1/21
Filed: 1962-08-11
Abstract: 1,025,614. Bolted joints. JOHN LAING CONSTRUCTION Ltd., and R. J.M.SUTHERLAND. Aug. 9, 1963 [Aug. 11, 1962], No. 30884/62. Heading B3U. [Also in Division E1] A connector for abutting structural members (Figs. 8 and 9) comprises a pair of coupling components 1, 11 with flat frictionally-engageable surfaces, each projecting from the abutment face of a respective member such as beams M, N, and both having bolt holes 4, 14 to be brought into register in the correctly assembled state of the members M, N, one hole, e.g. 4, being substantially larger than the other, and a bolt 6 to clamp the components so as to withstand a predetermined disruptive force or couple acting on the members M, N. The hole 4 is preferably of the order of twice the diameter of the bolt 6. Both of the components 1, 11 are of U-form and one is a snug fit within the limbs of the other, the holes being in interengageable yokes 2, 12 between the limbs which have outward flanges 3, 13 having a clearance therebetween when the components are clamped. A bolt carrying a nut 9 is placed between the beams M, N close to their top edges, with its threaded end in the hole 5 in the beam M and its head in the recess 15 in the beam N, the nut 9 being against a washer 10 around the hole 5. The gap between the beams M, N is filled with concrete or cement grouting. In another form (Figs. 10 and 14) there are two components 21, 27 and the component 21 in a beam N is downwardly open, its yoke resting on the corresponding edge of the tongue 27. The member 21 may also be tied to the beam N by means of a shear bar 25 welded thereto. The socket 21 has holes 30 registering with a hole in the tongue 27 for a bolt. The gap between the abutting surfaces is filled with concrete. Another embodiment relates to a friction grip connector as applied to a joint between an edge beam M and a floor slab N, both of precast concrete, wherein a pair of coupling flat tongues overlap in the assembled state of the members M, N, to which they are secured, and the mating edges of which are complementarily rebated, the beam M having a projecting head flush with its undersurface and the slab N having a similar head N flush with its upper surface for overlap on assembly. Both heads are interrupted by pockets around the tongues providing a clearance to tighten the clamping bolt. The upper gap between the components is finally filled with grout or dry mortar packing and the pockets with concrete. There may be additional holes for bolts in both components.
Patent GB-903423-A (GB)
Title: Improvements in and relating to the coating of articles with thermoplasts by the fluidised bed sintering process
IPC: C09D127/06
Filed: 1958-09-29
Abstract: In a process for coating articles by the fluidized bed sintering process using a pulverent thermoplastic composition which is maintained fluidized by passing a current of inert gas, and in which the article is coated by immersing at a temperature above the softening point of the composition, the latter is obtained by adding a plasticizer in the presence of 0,01-5, preferably 0,5-1 part by weight of water per 100 parts of the composition to a pulverulent thermoplast, consisting of at least one vinyl chloride polymer containing 85-100% vinyl chloride units, which is maintained in vigorous motion, and there is also incorporated with the mixture at least one finely divided inert pigment which may be added with or after the plasticizer. Preferably the thermoplast is polyvinyl chloride and/or a vinyl chloride copolymer with an ester of formula CH2=CH-O-CO-R or CH2=CH-CO-OR wherein R is C1-20 alkyl.  The following ingredients are specified: (a) comonomers: vinyl formate, acetate, (preferably), propionate, butyrate and stearate, and methyl (preferably), ethyl, propyl, butyl and ethylhexyl acrylates; (b) plasticizers: phthalic, adipic, sebacic or phosphoric esters, e.g. dioctyl adipate and sebacate, tricresyl phosphate and (di) 2-ethylhexyl, octyl, cyclohexyl, hexyl and octadecyl phthalates; (c) pigments: TiO2, ZnO, Al2O3, ZnS, CaCO3, BaSO4, C, Al, and Cu phthalocyanine and 5:51-dichloro-7:71-dimethylthioindigo; (d) vinyl chloride-acetate maleic acid copolymer or sulphurized oils, e.g. to improve the affinity of the thermoplast for metallic surfaces; (e) stabilizer: n-Bu2Sn-(SCH2CO2CH2CHEt2)2.ALSO:Thermoplastic compositions are obtained by adding a plasticizer in the presence of 0,01-5, preferably 0,5-1 part by weight of water per 100 parts of the composition to a pulverulent thermoplast, consisting of at least one vinyl chloride polymer containing 85-100% vinyl chloride units, which is maintained in vigorous motion, and there is also incorporated with the mixture at least one finely divided inert pigment which may be added with or after the plasticizer.  Preferably the thermoplast is polyvinyl chloride and/or a vinyl chloride copolymer with an ester of formula CH2=CH-O-CO-R or CH2=CH-CO-OR wherein R is C1-20 alkyl.  The following ingredients are specified:- (a) comonomers: vinyl formate, acetate (preferably), propionate, butyrate and stearate, and methyl (preferably), ethyl, propyl, butyl and ethylhexyl acrylates; (b) plasticizers: phthalic, adipic, sebacic or phosphoric esters, e.g. dioctyl adipate and sebacate, tricresyl phosphate and (di) 2-ethylhexyl, octyl, cyclohexyl, hexyl and octadecyl phthalates; (c) pigments: TiO2, ZnO, Al2O3, ZnS, CaCO3, BaSO4, C, Al, and Cu phthalocyanine and 5:51-dichloro-7:71-dimethylthioindigo; (d) vinyl chloride-acetate maleic acid copolymer or sulphurized oils, e.g. to improve the affinity of the thermoplast for metallic surfaces; (e) stabilizer: n-Bu2Sn(SCH2CO2CH2CHEt2)2.
Patent GB-797941-A (GB)
Title: Apparatus for the storage of digital information
Inventor: WILLIAMS FREDERIC CALLAND
IPC: G11C11/06
Filed: 1953-11-10
Abstract: 797,941. Electric digital-data-storage apparatus. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Nov. 2, 1954 [Nov. 10, 1953], No. 31155/53. Class 106 (1). [Also in Group XXXIX] In apparatus for storing digital information comprising a magnetic or dielectric hysteresis type storage device, read-out is effected by applying to said device electrical input oscillatory signals of at least two different frequencies to produce fluctuations of the induction state therein which extend over a non-linear region of the hysteresis characteristic of the storage body, deriving an output signal from the storage body consisting of an intermodulation beat frequency between said input signals, and determining the phase relationship between such output signal and a reference signal. Read-out is thus effected without affecting the stable state P1 or P2, Fig. 1, of the device, the fluctuations corresponding to minor loops such as that shown approximately around the point P1 in Fig. 1. The signals corresponding to the states P1 and P2 are said to be in anti-phase. To write information into a selected one of a matrix of magnetic cores, Fig. 3, row and column switches SMR1 and SMC1 are set appropriately and a switch DVS is set to 0 or 1. Then, on operation of a switch 32, a pair of spaced equal and doposite pulses derived from a pulse generator 31 and differentiating circuit 33 is applied to the selected column and row windings of the matrix. If 0 is selected, the polarity of the pulses is reversed by a circuit 34. The selected core is thus set to a state corresponding to the second of the pair of pulses, whilst all other cores return to their original state. For reading-out, a highfrequency source 22 is connected to windings of a row selected by a switch SMR2 and a source 21 of a slightly different frequency is connected by a switch SMC2 to windings of a chosen column. In the core at the intersection of the selected row and column, the inter-modulation beat frequency is received in an output winding. The output windings are connected in series and to a filter 35 which passes the beat frequency. The latter is amplified and applied to a phase-detector circuit 37 which compares the phase with that of the beat frequency obtained in a reference core r maintained by a winding S in a predetermined stable state. The polarity of the output signal from the circuit corresponds to the digit recorded. As described, the input frequencies are 5 and 5.025 Mc/s. In a modification, Fig. 4 (not shown), the reading-out input signals are applied to the same column and row windings as are the writing pulses and the same row windings are used to detect the beat frequency.
Patent GB-978834-A (GB)
Title: Production of bonded non-woven fabrics
Inventor: DRESCHER ERWIN
IPC: D04H1/645
Filed: 1963-08-08
Abstract: Now-woven fabrics are bonded by treatment both with an aqueous solution of a polyamine, polyalcohol or polyphenol and also with a solution (the solvent being one which is substantially insoluble in water) of an acid chloride which contains two acid chloride groups in the molecule; the sequence of the treatments with the two solutions is immaterial.  Examples of the polyamines, polyalcohols and polyphenols are hexamethylene-diamine, tetramethylene-triamine, phenylene-diamine, ethylene glycol, glycerol, butanediol, butenediol, cyclohexanediol, neopentyl glycol and resorcinol.  The acid chlorides used to react with these components are aromatic or aliphatic acid dichlorides such as the dichlorides of oxalic, malonic, succinic, glutaric, adipic, sebacic, maleic and terephthalic acids, or itaconic acid trichloride.  Suitable solvents for these acid chlorides include hexane, heptane, cyclohexane, benzene, toluene, chloroform and trichloroethylene.  Fibres which may be bonded by the above treatment include nylon 6, nylon 66, linear polyesters, acrylic fibres, natural fibres such as cotton and wool, and inorganic fibres such as glass or mineral wool.  The preferred range of concentrations of the solutions with which the fabric is impregnated is from 1 to 10% by weight and impregnation may be effected by repeated dipping in a bath of the solution.  Excess liquid may be removed by passage between squeeze rollers. Temperatures above atmospheric may be used if desired. Hydrogen chloride may be liberated by reaction between the two components and suitable alkalis may be included in the aqueous solution to prevent its escape.  In Example 1 the aqueous solution contains 0.05% by weight of the adduct of 6 moles of ethylene oxide and 1 mole of p-isooctylphenol; in Example 8 the solution of acid chloride contains 10% by weight of p-hydroxybenzoic acid 2 ethylhexanol ester as plasticizer.
Patent GB-1280885-A (GB)
Title: Light-sensitive resinous compositions
IPC: G03F7/021
Filed: 1969-06-20
Abstract: 1280885 Photo-sensitive materials and colour proofs therefrom POLYCHROME CORP 20 June 1969 [21 June 1968] 31396/69 Heading G2C A light-sensitive composition comprises (1) a light-hardenable sparingly water soluble reaction product of (a) water-soluble condensation product of a diazonium compound and a compound containing a reactive carbonyl group and (b) an acidic aromatic compound or an alkali metal salt thereof, a hydroxyl containing aromatic compound or a sulphonic acid or sulphonate thereof, a benzophenone, an acidic aliphatic compound or p-morpholino benzene diazonium fluoborate and (2) a sparingly water soluble resin. The composition may be coated on a support, imagewise exposed and developed with a developer containing a wetting agent and optionally an organic solvent to produce a printing plate. The support may be a bimetal support or an aluminium or copper support treated with a hexahalide. Alternatively, printed circuits may be produced using a copper clad insulating support or colour proofs using a transparent support and a suitable dye in the photo-sensitive layer and registering the four developed proofs. Specified resins are epoxy, phenolic or acrylic resins, polyamides polystyrene, polyesters, polysulphides, polyacetals, polyurethanes, polyvinyl acetate or polyvinyl chloride. Specified compounds (b) are phosphinic, phosphonic, sulphonic and carboxylic acids of benzene, toluene and naphthalene and alkali metal salts thereof, naphtha sulphonic acids, hydroxybenzophenones, diphenolic acid, 2,3-naphthalene diol, alizarin sodium monosulphate, stearic acid and ethylene diamine tetracetic acid. Reference has been directed by the Comptroller to Specification 1023025.
Patent GB-270984-A (GB)
Title: Improvements in or relating to show cases, shop windows, or the like
IPC: A47F3/00
Filed: 1926-12-10
Abstract: 270,984. Law, C. A., and Law, Foulsham, & Cole, Ltd. Dec. 10, 1926. Lighting, systems of; light reflected by trough-shaped reflectors.-Show cases, shop windows, or the like are illuminated by lamps contained within steps or recessed blocks mounted on the rear portion of each shelf so that the lamps are not directly visible. Each shelf a may be of wood with preferably, glazed apertures or preferably of plate glass, and the steps may consist of box-like structures or of a riser and a tread portion secured to the shelf or to the back of the show case or to both. The steps are preferably covered with black material and may be provided with tubular electric lamp bulbs d and with one or more longitudinal apertures in their under side. When recessed blocks are employed, they may be lined with parabolic or other reflectors. The top shelf may be illuminated by a lamp f at the top front corner.
Patent GB-495146-A (GB)
Title: Improvements in or relating to means for arresting amusement cars
IPC: A63G7/00
Filed: 1937-11-16
Abstract: 495,146. Train - control apparatus. BRITISH MOTOR BOAT MANUFACTURING CO., Ltd., and HARRISON, C. H. Nov. 16, 1937, No. 31432. [Class 105] [Also in Group XV] In internal-combustion engine driven amusement cars which can be arrested by throttle closing trip or other mechanism 17 operated by means external to the car, the brake is also automatically applied when the mechanism 17 is operated. The latter operates a lever 16 attached to a sleeve 15 carrying a cam 13 and a lever 18. The cam operates a throttle control lever 22 while the lever 18 operates a valve which connects a brake operating cylinder to the induction pipe of the engine, the suction of the engine thus applying the brake. The throttle pedal of the car acts upon a second cam 12 also acting on lever 22.
Patent GB-836758-A (GB)
Title: Heat conducting mould of variable heat transfer
IPC: B29C33/00
Filed: 1958-10-02
Abstract: A hollow mould for use in slush moulding hollow articles of rubber latex, polyvinyl plastisol, or a thermosetting resin, has a thin metal wall the outer surface of which has areas varying from highly polished to dull and totally anodized so that when the mould is heated externally by radiant heat to gel the layer of moulding material on the inner surface of the mould, the thickness of the resulting gelled layer is varied in a desired manner. Additionally the mould wall may be thicker at the dull areas to increase further the heat transferred to the moulding material thus increasing further the thickness of the gelled layer at those areas.
Patent GB-520761-A (GB)
Title: Sulphurised hydrocarbon products, their manufacture and applications
IPC: C07G99/00
Filed: 1938-10-31
Abstract: 520,761. Sulphurized oils; lubricants. DU PONT DE NEMOURS & CO.,E . I., and MAGILL, P. L. F. Oct. 31, 1938, No. 31471. [Class 91] [Also in Group IV] Sulphurized hydrocarbon products suitable for incorporation in oils of all types, and particularly in cutting oils and extreme pressure lubricants and greases are prepared by heating a dihydronaphthalene dimer with sulphur. The reaction is carried out at 140-170C. Either the 1 : 2- or the 1 : 4- dihydronaphthalene dimer may be used but the former is preferred.
Patent GB-651240-A (GB)
Title: A sink trap or like device
IPC: E03C1/284
Filed: 1948-03-06
Abstract: 651,240. Drainage traps. MITCHELL, I. D. Dec. 6, 1948, No. 31536. [Class 33] A sink trap device comprises a sink member e and a trap member a both of which are formed wholly or mainly of flexible non-metallic material such as polyvinyl chloride. The sink member in the form of a grating is provided with reinforcements e<SP>1</SP> in its annular flange which has annular grooves e<SP>2</SP> bearing against the sink. Similar grooves a<SP>6</SP> are provided on the flange a<SP>4</SP> of the trap member a, the flange a<SP>4</SP> also being reinforced at a<SP>5</SP>. The sink and trap members are connected together by a screw d coacting with a screwed bridge c. The remote end of the trap member is provided with a double flange a<SP>2</SP> for connection with the waste g. A strengthening web f is provided. Specifications 380,223 and 592,653 are referred to.
Patent GB-615635-A (GB)
Title: Carrier for lenticular screen and photographic plate
IPC: G03B35/24
Filed: 1945-11-23
Abstract: 615,635. Dark slides for lenticular screen photography. RELIEPHOGRAPHIE SOC. POUR L'EXPLOITATION DES PROCEDES DE PHOTOGRAPHIE EN RELIEF M. BONNET. Nov. 23, 1945, No. 31587. Convention date, Jan. 13, 1944. [Class 98 (ii)] The holder 9 comprises a front framing 10 in which a lenticular screen A is permanently mounted as on an internally-projecting ledge 11 by a metal frame 14 projecting over it, and a rear framing 12 for receiving a light-sensitive plate B which is pressed emulsion side first against the rear of the screen A as by springs 17 on a door 16 hinged to the holder 9. Separate intermediate framings fitting one inside the other and of the same thickness as the plate allow the use of plates of different sizes. The holder is rendered light-tight by two members 20, slidable in grooves 18, 19. Specification 615,629 is referred to.