baber/WOPTO huggingface dataset:
Patent GB-207305-A (GB)
Title: Improvements in or relating to focusing devices for cameras
IPC: G03B13/20
Filed: 1922-09-19
Abstract: 207,305. Torka, F., and Redders, P. H. C. Sept. 19, 1922. Finders. - A finder adapted automatically to focus the camera comprises two tubes 1, 2, Fig. 6, one of which carries a lens 23 and the other an inclined reflector 16, focussing screen 17, and folding hood 18. The tube 2 is mounted in a vertical extension 3<a> of the base 3 by which the device is attached to the camera base-board A so as to be capable of the usual quarter turn. The distance between the lens 23 and the screen 17 is varied by interacting levers 8. 10, Figs. 2 and 5. The lever 10 is mounted on the base 3 and projects into the path c of the camera lens holder B. The lever 8 is fulcrummed on a block 6, Fig. 6, which is attached to a saddle 5 on the lens tube 1 and slides in a slot 4 in the base 3. One end 9 of the lever 8 extends into the path of the lever arm 10, the other end being connected to a spring 15, anchored to the base 3. The fulcrum 11 of the lever arm 10 is longitudinally adjustable in a slot 12 in the base 3 and the position of the lever 8 with respect to the lever arm 10 is adjusted by a screw 20, passing through a U-shaped bracket 21 affixed to the tube 1, bearing against an extension 22 of the lever 8. The axis of the tubes is kept parallel with the camera axis by abutments 13 on the base 3 which bear against the track C of the camera lens-holder B. The interior of the tube 2 is provided with corrugations to prevent internal reflection.
Patent GB-489903-A (GB)
Title: Improvements in flexible metal tile or sheathing element
IPC: E04C2/26
Filed: 1937-09-20
Abstract: 489,903. Compound fabrics. LUDLUM STEEL CO. Sept. 20, 1937, No. 25424. Convention date, Sept, 22, 1936. [Class 140] [Also in Group X] A flexible metal tile or sheathing element for various purposes such as furniture applications, comprises a facing formed of thin corrosion resisting alloy sheet steel and a backing of flexible inelastic fibrous material or of inelastic metal such as lead. The facing has a thickness of between À002 and À016" and contains chromium in excess of about 8 per cent. Cold rolled alloy steel 4, Fig. 2, is provided with a backing 6 of felt, celluloserag or the like impregnated with asphalt or dry. The sheets are cemented and pressed together. Suitable adhesives used are clay base asphaltic emulsions, synthetic resins, or rubber latex. The underside of the layer 6 may be provided with an adhesive soluble in benzol or toluol before application to a wall. In a modification, Fig. 5, a facing 4 has a layer 14 of insulating lacquer and a backing 15 of thin metal such as lead, secured by an adhesive 16 such as stable asphalt which is electrically insulating and only softened by a high temperature. Lead backed sheets may be used in and about X-ray apparatus.
Patent GB-390063-A (GB)
Title: Cartridge belt with links which make use of the cartridges as link pins
IPC: F42B39/08
Filed: 1932-09-13
Abstract: 390,063. Making cartridge belts for machine guns. CESKOSLOVENSKA ZBROJOVKA AKCIOVA SPOLECNOST V. BRNE, 7, U Lazaretu, Brunn, Czecho- Slovakia. Sept. 13, 1932, No. 25497. Convention date, Sept. 29, 1931. [Class 83 (ii).] Metal-link belts of the kind in which the cartridges themselves form the hinge pins, have the middle portion of each link strengthened by a web 5 arranged normal to and across the belt between adjacent cartridges. The link shown in plan in Fig. 6 and in section in Fig. 5 is formed from a sheet-metal blank, as shown in Fig. 7. The centre portion 45 of the blank is bent to form a two-fold web 5 of T-section, the parts 53, 54 of the blank being bent round the ends of the web to form guides for the cartridges in the loops 31, 32. A portion 57 of the blank is pressed out to form a guide for the cartridge in the loop 30. The loops are strengthened by pressed ribs 35, 36, 37 and a pressing 40 engages the extraction groove of the cartridge to retain the cartridge in the belt. Fig. 10 shows a modification in which the link is formed by milling slits 60, 61 in a thickened blank, the solid portion x forming the web and the bifurcated portions being bent to form the loops.
Patent GB-954637-A (GB)
Title: Fluid flow control valve
IPC: F16K31/528
Filed: 1960-07-21
Abstract: 954,637. Valves. HILLS-McCANNA CO. July 21, 1960 [July 23, 1959], No. 25510/60. Heading F2V. The rotary spherical closure 30 of a fluidcontrol valve, which co-operates with two annular seats 22, 24 on support members 26, 28, is rotated upon turning a handle 92 through 90 degrees thereby causing a cam 90 to depress a spring-loaded plunger 46 incorporating followers 42 engaging helical cam grooves 40 in a cup element 44 that is connected by a tang 48 to the closure 30. The plunger 46 extends through and is secured to a disc 54 that forms the outer end of an impervious although flexible metal sealing bellows 60 whereby apart from the inlet and outlet connections the closure 30 and cam mechanism 40, 42 are isolated from the valve exterior; the plunger 46 is prevented from rotating by a splined part which coacts with a plate 66 fixed by lugs 68 in the valve body. In other forms, the operating handle requires to be turned through 180 degrees to open or close the valve. The handle may be arranged for operating movement in a horizontal plane the external cam 90 being replaced by a pair of helical cams similar to the mechanism 40, 42. The valve may be operated by a rotatable threaded stem through which the plunger is moved longitudinally.
Patent GB-186613-A (GB)
Title: Improvements in or relating to double action governor devices for regulating prime movers
IPC: F03B15/20
Filed: 1922-09-21
Abstract: 186,613. Volet, E., and Ateliers des Charmilles Soc. Anon. Sept. 28, 1921, [Convention date]. Fluid relays.-In a relay governing system for a Pelton turbine or other prime mover, two separate servo-motors 5, 7 control a valve 6 and a deflector 8 in the fluid supply. Both servomotors are under the control of a single distributing valve 3 set by a governor 1. A sleeve 13 forming part of the valve 3 is set by a cam surface on a bar 9 connecting the two motor pistons, which bar thereby controls the port 12 in the valve and thus the operations of the motor 5.
Patent GB-802897-A (GB)
Title: Improvements in the manufacture of footwear
Inventor: WRIGHT JOHN MICHAEL GIDLEY
IPC: A43B23/02
Filed: 1956-08-22
Abstract: 802,897. Boots &c. WRIGHT, Ltd, G. Aug. 22, 1957 [Aug. 22, 1956], No. 25649/56. Class 17(2) In a method of manufacturing casual court shoes or pumps two half-cut pieces 1, 2, Fig. 1, are closed along lines 5, 6, 7, and front panel 3 is attached along lines 8, openings 10, 11, Fig. 2, being left in the bottom of the upper assembly so that the upper may be force lasted and a sole directly applied without requiring insole, lasting tacks or filling. A fibre board or leather stiffener having a metal shank is provided. A smaller or greater number of openings 10, 11 may be left in the bottom of the upper.
Patent GB-455877-A (GB)
Title: Improvements in and relating to methods of and apparatus for treating iron powder
IPC: B22F1/142
Filed: 1935-09-16
Abstract: 455,877. Heat-treating iron powder. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. Sept. 16, 1935, No. 25679. Convention date, Sept. 19, 1934. [Class 72] In a process for glowing iron powder, the powder is blown in a current of inert gas, such as nitrogen, through a space which is heated to the necessary temperature (200 C.) and then cooled by being led through a space at a lower temperature, e.g. room temperature, before being deposited in a collecting receptacle. The powder 1 in a receptacle 2 is blown by a current of gas from a nozzle 4 into a quartz U-shaped tube 3 heated to the required temperature by a spiral 5. The glowed powder is cooled down when passing through the rest of the tube before it is deposited in the receptacle 6. The cooling may be accelerated by blowing cooled gas into the tube or by providing a cooling mantle round the tube and the tube may be heated by introducing a current of ignited gas into the tube, the gas being such that the products of combustion would act as the inert gas.
Patent GB-1134246-A (GB)
Title: Improvements relating to work holding and driving devices
Inventor: LILLIE CHARLES DOUGLAS
IPC: B23B33/00
Filed: 1966-06-09
Abstract: 1,134,246. Machine tool details. HYDRAJAWS Ltd. 13 Sept., 1966 [9 June, 1966], No. 25686/66. Heading B3B. In a work-holding or work-driving device a pad of polyurethane is employed as a pressure transmitting and equalizing medium between a plurality of displaceable work-contacting members. In a combined lathe centre and driver an annular set of four driving dogs 40 is disposed about a spring-loaded centre 33 and each dog bears through a drive pin 37 and piston member 39 on a common pad 55 of polyurethane material which fills an annular chamber 34 and which serves to equalize the pressure on the driving dogs. The latter have chisel-shaped driving edges and are prevented from rotating by transverse pins 43. In a work-holding device (Figs. 1, 2, not shown), e.g. a machine vice or jig a pad of polyurethane material is located in a chamber between two plate members bolted together and a series of work-contacting plungers bear directly on the material. The polyurethane material employed may be moulded thermoplastically or cut to the desired shape to fill the chamber.
Patent GB-241566-A (GB)
Title: Improvements in lubricant compressors
IPC: F16N13/00
Filed: 1925-10-14
Abstract: 241,566. Tecalemit, Ltd., (Assignees of Soc. Anon. des Etablissements TÚcalÚmit). Oct. 15, 1924, [Covention date]. Addition to 214.986. Single-acting suction valveless piston pumps; suction reservoirs.-In a lubricating-pump of the kind described in the parent Specification, the follower piston c in the container b is adapted to be frictionally connected to the rod a of the high pressure plunger by means of a conical member f which is forced by an adjustable spring g against the inner surface of a conical recess in the upper plate d of the piston. During the downstroke of the rod a the piston c is carried with it until the resistance of the lubricant causes it to slip on the rod. During the upstroke of the rod, the piston is stationary. In the form shown in Fig. 2, the cone f is pressed against the rod a by springs i mounted in the piston, and is pressed against the inner surface of the member h by a spring g.
Patent GB-538115-A (GB)
Title: Improvements in and relating to bayonet joint fasteners
IPC: H01R33/46
Filed: 1939-09-13
Abstract: 538,115. Stud-and-socket fastenings. SUMMERS, J. M. Sept. 13, 1939, No. 25744. Convention date, June 20. [Class 44] [Also in Group XXII] In a fastening for aeroplane cowlings and like uses, cup members 14, 26 are respectively secured by swaging, with male and female dies, the lips 18, 36 of the cups in apertures in the parts 22, 43 to be connected, shoulders 19, 38 bearing against the inner faces of said parts. A stud 10 with head 11 and cross-pin 12 is slidably guided in the base of cup 14, with a compression spring 17 housed in the cup and surrounding stud 10 under its head 11. Head 11 is provided with a slot to receive a screw-driver or other tool by which the stud may be depressed to pass the cross-pin 12 through a slot 27 in the base of cup 26 and engage it by rotation with cam surfaces leading to a recess 30 into which the pin enters under action of the spring. The closed ends 32, 33 of the recess prevent accidental axial movement of the pin. In the fastened position, Fig. 3, the head is flush with the outer end of the cup, but clear of a shoulder 19a, so that the parts are held resiliently, said shoulder limiting inward movement of the stud. The specification shows dies suitable for the swaging operation referred to above.
Patent GB-1430782-A (GB)
Title: Process for manufacutring amphoteric ion exchange resins
IPC: C08F20/62
Filed: 1973-05-30
Abstract: 1430782 Preparing ion-exchange resins ICI AUSTRALIA Ltd and COMMONWEALTH SCIENTIFIC & INDUSTRIAL RESEARCH ORGANIZATION 30 May 1973 [31 May 1972] 25753/73 Heading C3P Amphoteric ion-exchange resins are prepared by a process comprising (a) polymerizing a mixture containing an ethylenically unsaturated monomer having an amine or imine group, or a non-charged or negatively charged derivative thereof, and an ethylenically unsaturated monomer containing an acidic group, or a non- charged or positively charged derivative thereof, provided that monomer derivatives of opposite charge are not used and that at least one of the monomers is in the derivative form and (b) subjecting the polymer product obtained to an unblocking reaction to release the basic and/or acidic groups from the derivative or derivatives. The ion-exchange materials have thermally regenerable capacity. Step (a) may be effected in bulk or in an organic solvent in which all the monomers are soluble, e.g. acetone, dimethylformamide, acetonitrile, dimethyl sulphoxide, methyl ethyl ketone and C 1 -C 6  alkanols, the monomer solution being, if desired, dispersed in an immiscible supporting medium. Polymerization may be effected with a chemical initiator and/or high energy radiation. The monomer mixture used may optionally also include a neutral monomer, e.g. vinyl acetate, methyl vinyl ether or styrene, or a cross-linking monomer, e.g. a dimethacrylate, divinylbenzene or a triallyl compound. In examples the resins are obtained by polymerization of methyl acrylate or (meth)acrylamide with triallylamine hydrochloride, 1,4 bis - (diallylaminomethyl)-benzene dihydrochloride or 1,6-bis- (diallylamino) hexane dihydrochloride, and optionally vinyl acetate, ethylene glycol dimethacrylate, methyl diallylamine hydrochloride or divinylbenzene, and the product is hydrolysed with sodium hydroxide to convert the ester or amide groups to sodium carboxylate groups; and by polymerization of dimethylaminoethyl methacrylate with triallylamine hydrochloride wherein the product is hydrolysed with hydriodic acid to convert the amino-ester groups to carboxylic acid groups.
Patent GB-721416-A (GB)
Title: Improvements in or relating to rear lamps for cycles
Inventor: BLUEMEL FRANK WILLIAM
IPC: F21S8/10
Filed: 1952-10-15
Abstract: 721,416. Cycle rear lamps. BLUEMEL BROS, Ltd. Oct. 13, 1953 [Oct. 15, 1952], No. 25796/52. Addition to 709,651. Class 75 (4) A cycle rear lamp comprises a hollow body 10 of light transmitting material containing an electric lamp bulb 21 and closed at one end by an integral light transmitting portion 11 not adapted to act as a reflector and at its opposite end provided with a seating 16 shaped to conform with the rearwardly presented face of a rear cycle mudguard to which the lamp is attached. The lamp particularly described is of the same construction as the rear warning device particularly described in the parent Specification with the exception that the light transmitting portion 11 is not provided with reflecting facets.
Patent GB-217824-A (GB)
Title: Improvements relating to buffing and draw gear for railway and like vehicles
IPC: B61G9/04
Filed: 1923-10-16
Abstract: 217,824. Mitchell, J., and Cossey, J. C. G. Oct. 16, 1923. Combined buffer and draw-gear comprises a cylindrical member, to which the draw-bar is pivotally connected, adapted to rock in a socket provided in the coupler head, and a ferrule abutting against the rear end of the socket and enclosing one end of the draw-bar and transmitting the buffing stresses to a spring disposed in a casing secured to the longitudinals or other fixed parts of the frame. The head of the draw-bar 4 is pivoted by a pin 6 to a cylindrical member 3, as described in Specification 198,263, and works in a socket 2 of the coupler head. A ferrule 11 encloses. the draw-bar and bears against the coupler head and the follower plate 28 of the buffing and draw-spring 12, as described in Specification 185,602. A light spring 20 on the end of the draw-bar may be used to take up the light draught stresses and assist in centralizing the coupler head 1 in a manner similar to that described in Specification 204,644.
Patent GB-773478-A (GB)
Title: Improvements in or relating to selectors comprising a wiper carriage which is driventhrough a disengageable coupling
IPC: H01H63/24
Filed: 1955-09-09
Abstract: 773,478. Electric selectors. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Sept. 9, 1955 [Sept. 13, 1954], No. 25862/55. Class 40 (4). Drive from a continuously rotating shaft 8 to the wiper carriage of an electric selector is controlled by coaxial and rigidly connected idler wheels 10 and 11 mounted on an arm 13 pivoted at 14, the arm having one position in which the idler wheels transmit drive to the wiper carriage (Fig. 1) and a second position where the drive is severed and the carriage is locked against rotation (Fig. 3). Idler wheel 11 at all times meshes with a gear 7 of the wiper carriage while idler wheel 10 is of nylon with a milled edge and is driven by a similar nylon wheel 9 on the shaft 8. When a relay 33 is energized, as in Fig. 1, a spring 15 bearing on a post 16 and fixed on the arm 13 is deflected to press wheel 10 into contact with wheel 9. When the relay falls back spring 15 moves wheel 10 away from wheel 9 and engages wheel 11 with a toothed stop 17 which can pivot about a post 20 to a limited extent against a spring 25, and the position of which can be adjusted by an eccentrically mounted pin 22. Instead of meshing idler wheel 11 with the stop 17 a third coaxial idler wheel may be used for the purpose. To aid engagement between the stop 17 and an idler wheel the teeth of both may be pointed and have curved flanks.
Patent GB-920559-A (GB)
Title: Isopropenylpyridine polymers
IPC: C08F20/08
Filed: 1961-07-17
Abstract: Homopolymers of isopropenylpyridine of softening point between 100 DEG  and 240 DEG C., are made by polymerizing an isopropenylpyridine, preferably the 2- or 4-substituted pyridene in the presence of a compound selected from Group I to III of the Mendel<\>eeff Periodic Table.  The compound may be magnesium diethyl amide bromide, phenyl magnesium bromide, n-butyl lithium, beryllium diethyl, magnesium diethyl, N-carbazyl lithium, beryllium-bis-(dimethylamide), magnesium phenylmethylamide bromide, aluminium-tris-(dimethylamide), lithium aluminium hydride, or complexes of the type LiAl[N(C6H5)2]3H, and <FORM:0920559/IV(a)/1> which may be prepared in accordance with Specification 912,404. The polymerization may be effected in bulk, or in the presence of a solvent such as an aliphatic or aromatic hydrocarbon.  The polymers may be purified by treatment with dilute acids.  The polymers are insoluble in aliphatic hydrocarbons and in boiling ethyl or isopropyl ether.  The polymers alone, or in admixture with other hydrocarbon polymers may be extruded into fibres.
Patent GB-1440451-A (GB)
Title: Pressure control valve
IPC: B62D11/02
Filed: 1973-05-31
Abstract: 1440451 Valves KOMATSU SEISAKUSHO KK 31 May 1973 [31 May 1972 (2)] 26073/73 Heading F2V A valve for use in a steering system of a manually and remotely controllable tractor or bulldozer, comprising a valve closure member 25, Fig. 2, biased towards a seat 24 by spring means 28, 31, is operable to relieve excess pressure to outlet 26 to thereby control the hydraulic pressure in a delivery line 21 of the system. During remote operation of the vehicle, compressed air supplied through port 30 acts on piston 29 to thereby reduce the closing force exerted by the spring means on the closure member, whereby the valve responds to a lower hydraulic pressure. Axial bore 32 permits the passage of the hydraulic fluid to opposite ends of the closure member to damp vibrations of the latter. The blind bore in piston 29 may be replaced by a through bore sealed at its righthand end by a piston (33), Fig. 3 (not shown). In Fig. 4 (not shown), the closure member and piston are not telescoped but are in axial abutment.
Patent GB-982443-A (GB)
Title: Lifting device for cylindrical objects
IPC: B66F9/18
Filed: 1963-07-01
Abstract: 982,443. Masted lift trucks; stacking. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. July 1, 1963 [July 2, 1962], No. 26084/63. Headings B8C and B8H. An attachment for the lifting carriage of a fork lift truck for use in stacking of cylindrical articles such as drums or rolls of paper comprises prongs 2 arranged in a triangular formation on a plate 3 provided with dovetailed ribs 4 engaging in grooves 6 in a plate 5 which is rotatably mounted on an axle 7 secured to the lifting carriage. To form a stack, two groups of six articles are positioned by means of the truck as shown in Fig. 2 and held in position by chocks 10. A third group of six articles is then picked up by the truck, rotated through sixty degrees and deposited between the first two groups to form a truncated triangular stack. Three of the prongs may be omitted, Fig. 6 (not shown), if the plate 3 is always rotated through sixty degrees in the same direction.
Patent GB-1347822-A (GB)
Title: Apparatus for forming a cup-shaped article
IPC: B21D22/00
Filed: 1972-06-05
Abstract: 1347822 Cupping STANDON Inc 5 June 1972 [14 June 1971] 26101/72 Heading B3Q Apparatus for forming cup-shaped articles comprises a hollow cylindrical blankholder 36, Fig. 10, reciprocable towards and away from a redraw die ring 42, a reciprocable ram 24 mounted for axial movement through the blankholder to engage and carry a cup-shaped blank 30 through the die ring, a rotable cam 56, Fig. 6, having a cam follower 66 which is resiliently biased against the cam surface 64, a blankholder mounting frame 54, and a blankholder actuating means 84, 86 connecting the mounting frame 54 to the cam follower 66. With the ram 24 and blankholder 36 in their retracted positions as shown in Fig. 10, a blank 30 is fed to a yoke 40. The blankholder is then moved into the open end of the blank to engage the bottom wall thereof by means of the camming action of two rotating cams 56 via the resilently biased followers 66, pivoted arms 78 and actuating rods 84, 86. The blank is thus held against the die ring 42, the pressure of retention being determined by air pressure in chamber 116, Fig. 10, of cylinder 106. The ram 24 is then moved forwardly to engage the bottom of the blank so as to push the blank through the die ring 42. As the blank passes through the die ring, the blankholder 36 is forced forwardly by the pressure in chamber 116 to the forward limit of the cylinder 106 as determined by limiting screws 126. Continued movement of the ram 24 carries the blank through wall ironing die rings 44, Fig. 4, a stripper 46 and against a bottom doming die 48. The movement of the ram is then reversed carrying the finished can body 32 rearwardly into engagement with the stripper 46. Continued rearward movement of the ram strips the can from the ram.
Patent GB-789625-A (GB)
Title: Improvements in and relating to the manufacture of germanium
Inventor: ALLEN JOHN WALTER
IPC: H01L21/306
Filed: 1955-09-13
Abstract: In a method of treating germanium the surface of the germanium is etched with a solution comprising nitric acid and hydrogen peroxide in water.  Satisfactory results are obtained by immersion in the solution for at least 10 seconds with or without stirring, or at least 30 seconds without stirring.  The volume of nitric acid or hydrogen peroxide may vary between ten and sixty per cent with corresponding variations in the proportions of the other liquids.