baber/WOPTO huggingface dataset:
Patent GB-797322-A (GB)
Title: Improvements in or relating to toothed gear drives
Inventor: SUCKLING HAROLD FREDERICK
IPC: F16H57/12
Filed: 1956-04-24
Abstract: 797,322. Toothed gearing. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Jan. 24, 1957 [April 24, 1956], No. 12504/56. Class 80 (1). In order to prevent backlash between meshing gears 1, 2, the gear 2 is rotatably mounted on a disc 7 carried in bearings 8 and the disc is biased to rotate in its bearings and so tends to twist the gear 2 out of the plane of rotation of the gear 1, the gears thus meshing out of true. As shown, the gear 2 is interposed between driving and driven gears 1, 3 and the disc 7 is biased by an adjustable spring 11 engaging a push rod 10 whose cranked end engages a, hole in the disc. The arrangement is applicable to low speed, small power drives such as for computer adjusting knobs.
Patent GB-821082-A (GB)
Title: A process for the preparation of polyalkylene-polyamine condensation products suitable as textile assistants
IPC: D06M13/405
Filed: 1957-04-17
Abstract: Textile assistants are prepared by condensing polyalkylenepolyamines with esters of aliphatic carboxylic acids containing 6-18 carbon atoms at temperatures below 100 DEG  C. for up to 30 minutes, optionally adding ethylene oxide, and then making the reaction product weakly acid with a carboxylic acid containing 1-5 carbon atoms.  Suitable polyalkylenepolyamines include ethylenediamine, hexamethylene diamine, diethylenetriamine, triethylenetetramine, and their alkyl substitution products. Suitable esters include naturally-occurring animal, vegetable and fish oils, fats and waxes, and the esters of the corresponding acids with aliphatic alcohols. Emulsifying agents may be added to the reaction mixture.  The condensation products are useful as brightening and preparing agents, particularly for cotton, rayon staple, artificial silk or synthetic fibres, and impart antistatic properties.  They may be used as aqueous solutions or dispersions. Emulsifying agents and lubricants may also be added.  In examples: (1) "Perlon" (Registered Trade Mark), (3) rayon staple, and (6) cuprammodium silk yarns are treated with such condensation products.ALSO:Condensation products are prepared by condensing polyalkylenepolyamines with esters of aliphatic carboxylic acids containing 6-18 carbon atoms at temperatures below 100 DEG  C. for up to 30 minutes, and making the reaction product weakly acid with a carboxylic acid containing 1-5 carbon atoms.  Optionally one or more moles. of ethylene oxide may be added on to one mole. of the reaction product before the addition of acid.  The reaction product consists predominantly of the monoamides of the fatty acids.  Suitable polyalkylenepolyamines include ethylenediamine, hexamethylenediamine, diethylenetriamine, triethylenetetramine and their alkyl substitution products.  Suitable esters include the naturally-occurring fats and waxes, such as coconut oil, palm kernel oil, tallow, castor oil, groundnut oil, linseed oil, tung oil, beef tallow, sperm oil, fish oils and the like, and mixtures thereof, and esters of the corresponding esters with aliphatic alcohols.  Low molecular weight acids specified are formic and acetic acid.  Emulsifying agents may be added to the reaction mixture.  In examples: (1) hardened castor oil is reacted with ethylenediamine; (2) groundnut oil and triethylenetetramine are reacted; (3) and (5) beef tallow and diethylenetriamine are reacted; (4) tallow fatty acids ethyl esters are reacted with diethylenetriamine; (6) coconut oil and diethylenetriamine are reacted.  In (3) ethylene oxide is added to the reaction mixture and in all cases acetic acid is added.
Patent GB-774536-A (GB)
Title: Improvements in and relating to doors
Inventor: QUINQUE WERNER CLEMENS
IPC: E06B7/18
Filed: 1954-04-30
Abstract: 774,536. Door fastenings; wedge fastenings. ENGLISH ELECTRIC CO., Ltd. July 29, 1955 [April 30 1954], No. 12596/54. Class 44. [Also in Group X] A door 2 mounted on hinges 3 to close an opening in a cubicle for truck-type switchgear is movable vertically on its hinges so that it can be raised for opening and lowered bodily for locking, in the closed position by mechanism comprising a rod 7, which is slidable vertically in guides 8, 9 secured to the inner face of the door, and which carries, at its lower end, a wheel 10, the upper end of the rod 7 being connected by a toggle linkage 11 to a fixed pivot 12 on the door, and the linkage 11 being connected by a bar 13 to a lever 14 which is rotatable by a handle, not shown. When the handle is rotated clockwise the lever 14 moves the bar 13, thus lengthening the toggle linkage 11 and causing the wheel 10 to bear upon the floor and the door to be lifted on its hinges 3 so that it can be opened. When the door, having been closed, is lowered by rotating the handle anticlockwise wedges 16, on the front face of the cubicle, engage corresponding wedges 17 attached to the adjacent edge of the door to lock, and at the same time impart a closing movement to the door. Each wedge 16 has teeth for adjustable engagement with corresponding teeth on a plate 19 which is secured by pins 20 to the cubicle 1, the wedge 16 being secured to the cubicle 1 and by a bolt 21 passing through corresponding vertical slots in the plate 19 and the cubicle.
Patent GB-442120-A (GB)
Title: A process for manufacturing novel cyclic ketones
IPC: C07C45/59
Filed: 1934-04-26
Abstract: Alkylcyclopentenones are prepared by treating alkylated butyrolactones with concentrated inorganic acids, preferably at elevated temperature.  If desired, the corresponding unsaturated acids or esters are employed as starting material, being first converted by the acid treatment into the lactone.  The products are useful as perfumes.  Examples are given of the preparation of hexylcyclopentenone (dihydroisojasmone) by heating undecalactone, undecylenic acid or its ethyl ester with concentrated sulphuric acid, to which sulphur trioxide or phosphorus pentoxide may be added.  The production of butylcyclopentenone from amylbutylrolactone is referred to.
Patent GB-991104-A (GB)
Title: Laminate and process of preparing the same
IPC: E04C2/288
Filed: 1964-03-25
Abstract: 991,104. Laminates. FORMICA CORPORATION. March 25, 1964 [June 3, 1963], No. 12697/64. Heading B5N. A method of surfacing asbestos-cement boards with thermosetting-resin impregnated fibrous sheets by hot-pressing comprises first sizing the surface of the board to be covered with a solution of a polyamine-epoxy resin composition and evaporating the solvent to leave a partially cured resin coating in an amount of from 0.013 to 0.58 gram/inch<SP>2</SP>, which does not significantly fill the cavities on the said surface, said epoxy resin being one prepared by reacting bis-phenol-A with epichlorhydrin and having an epoxy equivalent of between 180 and 550, and said polyamine being selected from aromatic and aliphatic primary and secondary polyamines e.g. melamine, urea, dicyandiamine and the like, either singly, or in combination. The amount of amine used may be from 0.3 to 1.1 NH2 groups per oxirane group. In preparing the size, the two reactive components may be dissolved in any inert organic solvent, in an amount such that the solids content of the mixture is from 15-40%. The size may be applied by brushing, roller coating or spraying and evaporation of the solvent achieved by infra-red lamps or forced-draught ovens; more than one coating may be applied if necessary. Suitable fibrous sheets include Kraft paper, cellulose paper, creped paper or, preferably, papers prepared from a fibrillated wet gel polyacrylonitrile fibre; cotton fabrics, linen fabrics, glass-fibre fabrics, artificial or synthetic fibre fabrics, e.g. from polyacrylonitrile fibres, polyester fibres, linear super polyamide fibres in either mat or woven form. One or more thermosetting resin impregnants may be used, suitable resins being aminoplasts such as urea-formaldehyde, aminotriazine-aldehyde, melamine -, benzoguanamine - and dicyandiamine-formaldehyde, or phenolic resins, unsaturated polyester resins or certain terpolymers such as that prepared in an emulsion polymerization scheme from methyl methacrylate, ethyl acrylate and methacrylic acid. More than one fibrous sheet may be used, particularly when decorative effects are required, in which case the asbestos-cement board may be surfaced with a phenolic-resin impregnated sheet, a melamineresin impregnated print sheet and an overlay sheet which may be, e.g. a melamine resinimpregnated sheet or a film of polymethyl methacrylate, polyvinyl fluoride, polymethyl fluoro acrylate, polyester, or a thermosetting or thermoplastic polyester resin impregnated sheet formed from synthetic fibres, especially fibrillated wet gel polyacrylonitrile fibres. Numerous exemplary coating compositions and details of the process of the invention are given. The products are suitable for use as weather-proof outdoor panels.
Patent GB-935961-A (GB)
Title: Method of forming shaped laminates
Inventor: HANNES GEORGE JOHN
IPC: B29C70/00
Filed: 1961-04-10
Abstract: A laminate is formed by first forming an assemblage of a glass-fibre layer having an uncured thermosetting adhesive binder, a thermoplastic sheet, e.g. of polyvinyl chloride, having a surface in contact with the glass-fibre layer and a thin textured embossing member in contact with the opposite surface of the thermoplastic sheet, then applying pressure to the assemblage by a press to compress the fibrous layer and simultaneously heating the assemblage to a temperature above the softening point of the thermoplastic sheet, to cure the binder, and retain the glass-fibre layer in its compressed condition, emboss the thermoplastic sheet with the pattern of the embossing member and secure it to the glass-fibre layer, and finally removing the assemblage from the press and stripping the thermoplastic sheet and glass-fibre layer from the embossing member after sufficient cooling of the assemblage.  The textured embossing member has a non-planar surface and may have a design imposed thereupon by a plurality of surface hills and valleys which are small as compared with the size of the laminate produced.  It embosses a complementary pattern into the laminate during the pressing and is separate from the pressure-applying members of the press.  It may be a fabric woven to a desired design or a metal plate with an engraved surface.  The glass-fibre layer may comprise two or more glass-fibre layers; only one need have an uncured binder, while another having a cured binder is not compressed in the bonding. The heat and pressure may be applied by a press having heated platens, the platen next to the glass-fibre layer being heated to a higher temperature than the other.  If the embossing member is flexible and porous, e.g. a woven fabric, a vacuum may be applied to its underside to draw the thermoplastic sheet into intimate contact with it.  An adhesive, e.g. polyvinyl chloride or polyethyl acrylate, may be applied to the thermoplastic sheet, on the side to face the glass-fibre layer, to improve the bond.  The thermosetting resin in the glass-fibre layer may be phenol-formaldehyde or melamine-formaldehyde.
Patent GB-956818-A (GB)
Title: Gas analyzing systems
IPC: G01N27/74
Filed: 1962-04-03
Abstract: 956, 818. Gas analysis apparatus. LEEDS & NORTHRUP CO. April 3, 1962 [April 17, 1961], No. 12776/62. Heading G1N. In a gas analyser 1 for paramagnetic gases, of the type including a plurality of thermal conductivity cells each including a temperature responsive element connected in a balanceable electrical network with one of the cells being disposed in a magnetic field, changes of pressure in the measuring cell are compensated by a convection type cell having a magnitude of current through the temperature responsive element which in relation to the size of the free space about the element produces convection cooling of the element and a drop of potential thereacross, whereby the drop in potential across the measuring element in the magnetic field arising solely from a change in pressure, is substantially nullified. Element 15, Fig. 1, responsive to paramagnetic gas delivered from a pipe 20 through a flowmeter 23, regulating valve 24, and pipe 25, is temperature compensated by an element 16 in the same enclosure, and pressure compensated by the arrangement of elements 17, 18 in an enclosure vented to atmosphere through a filter 27, the size of the enclosure around element 17 being such that with predetermined current through element 17 thermal convection, which does not occur in the limited enclosure of resistor 18, produces a pressure compensation potential, the amplitude of which may be adjusted by selection of current through resistor 17, and or chamber size to effect the necessary compensation in the range of paramagnetic gas proportion being investigated. Coarse and fine adjustment of current is achieved by potentiometers 39, 40 respectively and a resistor is provided in the bridge output circuit for calibration against the oxygen content of air. Obtention of the requisite compensation is discussed with reference to Figs. 2-5 (not shown). The apparatus comprises a U-shaped permanent magnet 19, Fig. 6, mounted between plates 19a, 19b, on which the cells 10A, 10B are mounted and includes a rod like structure 71, slidable longitudinally in bearings 72, 73, which has a high permeability portion and a non-magnetic portion, the former of which is movable into a position between the polepieces to remove the magnetic field from the measuring cell during calibration. The elements may be temperature sensitive resistors or an arrangement of heating elements and thermocouples. Dimensional examples and sensitivities are given. Specifications 699,641 and 956,819 are referred to.
Patent GB-742130-A (GB)
Title: Improvements in method and apparatus for hot sealing sheet material coated with thermoplastic coating material
IPC: B31B50/64
Filed: 1953-05-07
Abstract: 742,130. Seaming non-metallic sheet material. BERGHRACHT, M. May 7, 1953 [May 7, 1952], No. 12799/53. Class 42 (1). [Also in Group XVII] In a method of hot sealing material coated with thermoplastic material or articles produced therefrom, pressure is exerted on the surfaces to be sealed after heating of those surfaces and is effected with progressively increasing pressure in the course of subsequent cooling. Preferably, the surfaces to be united are preheated to softening temperature of the thermoplastic material without pressure thereon ; at this temperature, the surfaces are pressed lightly together to cause the thermoplastic coatings to interpenetrate ; the material is then allowed to cool while the surfaces are pressed together with progressively increasing pressure, such pressure being removed only when the thermoplastic material has negligable plasticity. As shown, Fig. 2, pre-formed tubes 1 of thermoplastic-coated sheet are fed between rollers 2, 3, 4 to a pre-heating roller 7 whereon the thermoplastic material is heated to softening point and an end of each tube is folded by blades 5, 6 to form the bottom seam of a bag. This seam is gripped lightly by heated grippers 8 on a cylinder 9, and then strongly gripped with progressively increasing pressure by unheated grippers 11 on a cylinder 10 which is unheated and may be cooled. The formed bags are stacked at 12. The tops of filled bags are sealed as the bags pass along a guideway 14, Fig. 3. The faces 15, 15<SP>1</SP> to be sealed are pre-coated with thermoplastic material which is pre-heated to softening point in a heating zone 16 wherein a positive temperature gradient is provided in the direction of feed of the bags by means of electric resistance or steam heaters or infra-red lamps. The surfaces 15, 15<SP>1</SP> are then lightly pressed together by reciprocating heated grippers 17, 17<SP>1</SP> and the seal thus formed, while cooling gradually, is clamped between rollers 21, 21<SP>1</SP>, 22, 22<SP>1</SP>, 23, 23<SP>1</SP>, &c., the pressure between successive pairs of rollers increasing progressively. The rollers are adjustable vertically and the spring loadings of the rollers and of grippers 17, 17<SP>1</SP> are individually adjustable.
Patent GB-1146697-A (GB)
Title: Control for a band feeding device
IPC: B21D43/02
Filed: 1966-03-23
Abstract: 1,146,697. Feeding webs. HUNTER DOUGLAS INTERNATIONAL Ltd. 23 March. 1966 [23 March, 1965], No. 12846/66. Heading B6B. A web of material is fed in-steps to a working station and the length of material fed during a step is automatically adjusted by an electrical control system in dependence on a signal, stored in a memory, corresponding to the relative position of a mark on the web detected previously, so that operation takes place at the same relative position at the station. In Fig. 1,aluminium strip 1 bearing registration marks is fed to a machine 8 in which it is stopped periodically and crown caps formed by operation of a punch driven by a shaft 7. The marks are viewed by a photo-electric detector 3 before they reach the punching position and the timing of the electric pulses so produced is compared in a comparator 4 with pulses produced by a transmitter 5 operated by the machine. Transmitter 5 is adjusted so that normally no output is produced by comparator 4. Thereafter, any variation in the position of the marks exceeding a predetermined value results in outputs 28a, 28b or 28c from comparator 4, according to the sense and magnitude of the variation, which are applied to a relay-type memory device 25. Memory device 25 is controlled by rotary switches S 1 -S 3  operated by the machine -so that the variations are stored periodically and released to operate appropriate magnets or fluid-pressure operated members 15, 16 or 17 which increase or decrease the -amount of strip fed during the step into the station as necessary to ensure that punching occurs at the correct position. Details are given of a relay memory device for use when the mark ahead of that being viewed is at the punching station. More complex memory devices giving greater accuracy of correction and/or operation when there are several marks between the viewing and punching positions -are referred to.
Patent GB-1034565-A (GB)
Title: Improvements relating to warp-thread stands for textile drawing-in machines
IPC: D03J1/14
Filed: 1964-03-26
Abstract: Warp beams 19 are moved from a warping machine on a stand 14 that is then connected to a drawing-in stand 3 with clamps 5 for the warp threads.  The two stands are moved together by the drawing-in machine and, after the heald frames have been threaded, the drop-wires are placed on holders 16, the frames on members 15, the stands are separated and the stand 14 moved to store.
Patent GB-620147-A (GB)
Title: Improvements in or relating to electro-hydraulic control systems for use on aircraft
IPC: B64C13/00
Filed: 1946-04-29
Abstract: 620,147. Electric control systems. ELECTRO HYDRAULICS (MESSIER), Ltd., and HADEKEL, R. April 29, 1946, No. 12911. [Class 40 (i)] In an electro-hydraulic control system for positioning aircraft flaps in one of a number of definite positions, switches such as 16, 17 and 21 are provided which operate circuits controlling a rocking lever member 15 which in turn controls the valves of a hydraulic jack to move the jack to either the top, bottom or an intermediate position. Closure of switch 16 energizes coil 13 which attracts the pivoted rocking lever member 15, closing contacts 4 and opening mechanically a valve (not shown), as a result of which the jack moves to its top position. twitch 17 operates coil 14 to move the jack to its bottom position. With the jack in the top position, closure of switch 21 energizes coil 14 via contacts 7 and an arm 11 in the path of the jack. The rocking lever then closes contacts 3 and the jack moves downwards. In its downward movement it transfers the arm 11 to contact 8 energizing coil 13 through already closed contacts 3. This coil centralizes the rocking lever, cutting off the supply to itself, and the fluid supply to the jack, which stops. The control is similar when the button 21 is actuated with the jack in its lowest position. Duplication of the sets of switches operated by the jack enables it to be stopped in any of a number of intermediate positions. These switches may be of the follow-up type having one part manually moved and another operated by a member driven by the jack, so that the jack moves to a position selected by the manual movement.
Patent GB-1331588-A (GB)
Title: Transmission assembly
IPC: F16D67/06
Filed: 1972-03-20
Abstract: 1331588 Clutch-brake combinations COMPAGNIE INDUSTRIELLE DES TELECOMMUNICATIONS CIT-ALCATEL 20 March 1972 [18 March 1971] 12955/72 Heading F2L An electromagnetically operated clutch-brake mechanism for a tape drive comprises stationary electromagnets 5, 13 which are selectively energized to attract a flexible driven disc 9 having magnetizable rings 11, 12 into engagement with a driving clutch disc 2 or into engagement with a brake disc 16. When both electromagnets are de-energized the driven disc 9 is biased by its own resilience into light engagement with the brake disc 16. Driving and driven shafts 1, 6 and their bearing assemblies 4, 8 are axially adjustably mounted in housing elements 3, 7 to permit adjustment of the air gap E between the clutch disc 2 and driven disc 9 and to permit adjustment of the light fractional engagement between the discs 9, 16 when the electromagnets are deenergized. The rings 11, 12 are made of soft iron and the disc 9 is made of beryllium bronze or stainless steel.
Patent GB-745747-A (GB)
Title: Improvements in seats
Inventor: WILTSHIRE HOWARD
IPC: B60N2/70
Filed: 1953-05-09
Abstract: 745,747. Seat cushions. MORRIS MOTORS, Ltd. July 23, 1954 [May 9, 1953], No. 12999/53. Class 52(4). A seat having a bottom and back rest fitted with metallic springs 4, 7 is provided with an integral overlay 9, 9A of latex foam cushioning, the back portion of the overlay being free so that it can follow downward displacement of the seat cushion. The underside of the overlay is cavitated and adhesively secured to a sheet 11 of open-weave canvas or like material.
Patent GB-1498171-A (GB)
Title: Propellant with burning properties
IPC: C06B25/20
Filed: 1964-03-26
Abstract: 1498171 Propellent compositions NITROCHEMIE GmbH 26 March 1964 [12 June 1963] 13025/64 Heading C1D A propellant having improved burning properties comprises nitrocellulose, at least one organic compound of a polyvalent metal, and a polyacetylene. Metal compounds specified are lead 2-ethyl hexoate, salicylate, m-cresolate, catecholate, anthranilate, phthalate, hydroxybenzoate, dibenzoylmethane, acetylacetonate, alizarinate, quinizarinate, and stearate, iron, manganese and cobalt salicylates, and iron, manganese and copper mcresolates; reference is made also to compounds of nickel, chromium and tin. The composition may also include a nitrated polyalcohol, for example nitroglycerine, and an oxygen carrier. In examples, additional ingredients are dibutyl phthalate, diethyldiphenyl urea, methyldiphenyl urea, magnesia, graphite, and candelilla wax.
Patent GB-1294373-A (GB)
Title: Electrodes for electrochemical processes
Inventor: SCRUTTON ANTHONY
IPC: C25B11/10
Filed: 1970-03-18
Abstract: 1294373 Electrochemical electrodes IMPERIAL CHEMICAL INDUSTRIES Ltd 19 April 1971 [18 March 1970] 13035/70 Heading C1A [Also in Division C7] The coating step of Specification 1,206,863 is repeated at least once more so as to lay down a sequence of alternating layers of operative electrode material and film forming metal oxide amounting to at least four layers in all.
Patent GB-1165595-A (GB)
Title: Severing Tire Ply Stock.
IPC: B29D30/46
Filed: 1967-10-06
Abstract: 1,165,595. Severing tyre ply stock; severing by tearing. NRM CORP. 6 Oct., 1967 [21 Oct., 1966], No. 13042/69. Divided out of 1,165,594. Heading B4B. The subject-matter of this Specification is identical with that described in Specification 1,165,594, but the claims are directed to the tearing element together with the means for moving the tearing element lengthwise of the tyre cords to effect tearing of the tyre ply stock.