baber/WOPTO huggingface dataset:
Patent GB-825681-A (GB)
Title: Method of and die for producing longitudinally grooved or serrated articles
Inventor: TAYLOR FRANK WILLIAM
IPC: B21D15/02
Filed: 1957-06-20
Abstract: 825,681. Making rollers; corrugating. WEBB & CO. Ltd., H. C., and TAYLOR, F. W. June 17, 1958 [June 20, 1957], No. 19416/57. Classes 83 (2) and 83 (4). A method of forming longitudinal grooves in a cylindrical article such as the roller of a lawn mower comprises forcing the article through a die aperture into which project a number of hardened steel balls which are free to rotate. Two ring dies 5 are mounted on a bed 1. Each ring die has sixty equally spaced radial bores 6 which are peened at the inner ends to retain the balls 10 which are held by hardened steel plugs 9 and adjustable screwed plugs 7 with lock-nuts 8. In operation an evenly fluted mandrel 3 forces a cylindrical blank through the dies so that the balls rotate and deform the wall of the blank into the flutes in the mandrel. The balls of the lower ring may protrude slightly further than those of the upper ring to give a finishing operation to the ribs formed by the balls of the upper ring.
Patent GB-596535-A (GB)
Title: Sliding door gear
IPC: E05F15/56
Filed: 1945-07-30
Abstract: 596,535. Sliding door gear. PEARSON, D. A. July 30, 1945, No. 19418. [Class 65 (i)] Gear for controlling the operation of a sliding door 8 comprises a fluid-pressure cylinder 6 which moves with the door, a double-acting piston 5 which is fixed, and valve means controlled by the door handle 11 for venting the working spaces of the cylinder whenever the handle is moved into an operative position to open or close the door. The door is suspended from roller carriages 4 which travel on a track 3 carrying at one end a bracket to which the piston-rod 1 is secured. When the handle is rotated to either of the positions shown by dotted lines at A and B, valve ports 12, contained in a valve disc 11 secured to the handle, register with the lower ends of vent pipes 9, the upper ends of which are connected to opposite ends of the cylinder. Both ends of the cylinder thus being vented to the atmosphere the door may be moved freely. With the handle disposed centrally, the closed pneumatic system opposes a braking effect to the movement of the door. In a modification, the cylinder is fixed and the piston moves with the door, extensible or flexible connections being provided between the cylinder and the control valve.
Patent GB-238695-A (GB)
Title: Improvements in or relating to handles for kettles and like receptacles
IPC: A47J45/08
Filed: 1924-08-18
Abstract: 238,695. Hodgetts, R., and Hodgetts, S. Aug. 18, 1924. Handles.-One or both of the supporting members 1 of a kettle or like handle have inwardly-extending knife-edged lugs 8 adapted to bite into the wooden or other insulating sleeve 4 to prevent relative movement of the parts, and to facilitate tightening of the securing nuts 5 on the spindle 3 one or both of them may have a flat-sided projection 6 adapted to engage in a correspondingly-shaped hole in the supporting member.
Patent GB-147594-A (GB)
Title: Improvements in apparatus for starting and protecting continuous current motors
IPC: H02P1/18
Filed: 1920-07-08
Abstract: 147,594. Krupp Akt.-Ges., F. May 14, 1919, [Convention date]. Controllers, electro-magnetic actuating mechanism for; with overload release.-A combined automatic starter and overload-release for a continuous-current shunt-wound motor comprises two windings in opposition on a core E which control not only the overload and starting contact e<1>, but also a second magnet core J which closes a contact i' to out out a starting-resistance C. The tension winding d<2> is permanently across the mains and is closed by a switch F. When a resistance H is cut out by means of a switch G, the current in the tension winding d<2> closes the starting-contact e<1> upon the contacts d<3>, d<4> against a spring d<5>. As the motor speeds up and the strength of the armature current drops, the current in the tension winding d<2> gradually becomes sufficient to overcome both the opposite tractive force due to the current in the main winding d' and also the force of the spring i', and closes the contact i<1> against the points i<2>, i<3>, thereby cutting out the starting-resistance C, and allowing the motor to attain its full working speed. The starter can be opened at any time bv pulling-out the switch F and so de-energizing the tension winding d<2>, whereupon the parts return to the position shown on the Figure.
Patent GB-732133-A (GB)
Title: Improvements relating to artificial mandibular molars
IPC: A61C13/097
Filed: 1952-08-01
Abstract: 732,133. Artificial teeth. RAUTER, H., [trading as VITA-ZAHNFABRIK H. RAUTER, O. H. G.]. Aug. 1, 1952 [Aug. 1, 1951], No. 19548/52. Class 81 (2). In a pair of artificial opposed molars, one tooth has a sagitally positioned rib projecting from its occlusal surface, the occlusal surface of the opposite tooth being discarpment. An artificial molar 2 has a ridge 3 formed in the sagittal direction across the centre of the masticating surface. Troughs 4, 5 are formed on each side of the ridge 3 so that only the ridge 3 contacts the opposite molar in the position of occlusion.
Patent GB-1509533-A (GB)
Title: Endo-prosthetic devices
IPC: A61F2/42
Filed: 1974-05-03
Abstract: 1509533 Endoprosthetic joints NATIONAL RESEARCH DEVELOPMENT CORP 30 April 1975 [3 May 1974] 19558/74 Heading A5R A metacarpophalangeal joint comprises: a first, metacarpal, component, Figs. 2 and 3, having a rounded body 10 which is recessed to define bearing surface portions 12 separated by a rib 13; and a second, phalangeal component, Fig. 5, having a rounded body 20 which is recessed by an elongate groove 22, wider at one end than at its other and separating two generally parallel ribs 23. In use, the ribs 23 of the phalangeal component bear on the bearing surface portions 12 of the metacarpal component and rib 13 of the metacarpal component engages in groove 22 of the phalangeal component whereby the components may articulate through 100-110 in the plane of rib 13 and groove 22, and the components may articulate through 10- 40 transverse to the plane of rib 13 and groove 22 when rib 13 is engaged in the wider end of groove 22. The outer side walls of bearing surface portions 12 may be reduced in height to facilitate manufacture of the first component from metal.
Patent GB-653473-A (GB)
Title: Improvements relating to the setting of brush bristles in holders
IPC: A46B3/00
Filed: 1948-07-21
Abstract: A rubber bonding composition particularly suitable for use in setting bristles in brushes comprises a mixture of depolymerized natural rubber with vulcanizing and other compounding ingredients. Depolymerization may be effected by heating with 10 per cent naphthenic acid for four hours at from 250-260 DEG  C.  In setting bristles a composition consisting of depolymerized rubber 100 parts, sulphur 50 parts, accelerator 2 parts and barytes 50 parts was poured into the brush ferrule at a temperature of 70 DEG  to 80 DEG  C. and then vulcanized by heating for six hours at 160 DEG  C.
Patent GB-205558-A (GB)
Title: Improvements in or relating to apparatus for hoisting and tipping railway wagons
IPC: B65G67/00
Filed: 1922-07-17
Abstract: 205,558. Mitchell, F. G. July 17, 1922. Tipping-apparatus. - Relates to apparatus of the kind in which the cradle d is first raised and then tilted about the axis c by hoisting ropes r and balance weights n, and a pivoted sustaining beam w is connected by ropes h to weights t so as to bear against and retain the inverted wagon on the cradle. The beam normally rests on a stop g in an inoperative position, with the weights t supported by the main balance weights n as shown. When the cradle is raised and begins to tilt, the weights t bear on stops s on the ropes h and begin to raise the beam a. When the beam bears against the top of the wagon on the cradle, the balance weights n can descend further whilst the sustaining weights t, supported by the ropes h, hold the beam and wagon in place. The beam thus adapts itself to wagons of different heights, and if a wagon with closed top and side door is being tipped, the cradle is not tilted far enough to bring the sustaining beam against the top. The sustaining weights t hang from cross-bars a which rest on spring supports on the weights n. The sustaining beam a may be provided with hinged bearing surface faced with rope on wood, which are normally held away from the beam by spring supports. Specification 209,444 is referred to.
Patent GB-352236-A (GB)
Title: A new or improved power press for pressing or shaping articles from clay dust or other material
IPC: B30B1/06
Filed: 1930-06-28
Abstract: 352,236. Moulding electric switches etc.; stationary-mould machines. KENT, W. F., KENT, E. J., and KENT, S. H., (trading as KENT, W.), Novelty Works, Wellington Street, Burslem, Stoke-on-Trent. June 28, 1930, No. 19685. [Class 87 (ii).] A machine for moulding clay dust comprises a main driving shaft 4 carrying two cam discs, one of which has a cam on each face and the other a cam on one face and on the periphery. One cam on the first disc slides the upper die member P through the medium of the lever 6 and is shaped to give an initial pressing stroke, a momentary lift to allow the escape of air, a second slight compression followed by a slight release to give a cushioning effect and then a final pressing stroke followed by a full retracting movement. The second cam operates the lift rod 9 through the medium of the lever 10. The rod 9 raises the lower die momentarily to permit the escape of air, but descends again prior to the second pressing movement. When the plunger P is retracted, the rod 9 is raised again to present the moulded article for lateral ejection. The face cam on the second disc operates a sliding feed box 39 co-operating with the hopper 24. A lever 26, connected to this cam by an arm 28, operates a crank 35, thus operating other cranks 37 linked at 38 to the box 39. The peripheral cam on the second disc vibrates the hopper to ensure the feed box being filled at each stroke. A roller 40, Fig. 2, on a lever 41 engages this cam and thus operates a crank 44 to rock a shaft 45. The latter shaft carries a pinion 46 operating a rack 47 which in turn operates a lever 48, Figs. 2 and 6, contacting with members 52 fastened to the hopper 24. The inward stroke of the lever 48 compresses the springs 57, and the catch 54 maintains the pressure until lifted by the pin 55 during the return stroke, thus suddenly releasing the members 52 and imparting vibration to the hopper. The shaft 45 also moves a slide carrying the cylinder 61 of an air pump through the medium of a crank 63 and link 64, and thus sprays oil from nozzles 60a, 60b to lubricate the top and bottom dies. The front end of the cylinder-carrying slide ejects the moulded article on to an intermittently-operated conveyer.
Patent GB-717217-A (GB)
Title: Improvements relating to thermionic valve coupling circuits
Inventor: JONES GLYNDWR JAMES
IPC: H03F3/44
Filed: 1952-08-05
Abstract: 717,217. Valve amplifying circuits. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. June 5, 1953 [Aug. 5, 1952], No. 19698/52. Class 40 (6) A cathode-follower type circuit in which the output may be made exactly equal to the input both in amplitude and in D.C. level comprises a first cathode follower V1 coupled to a second cathode follower V2 via a series resistor R2. The anode of a compensating valve V3 is connected to the grid of the valve V2 and its cathode via a resistor R3 to an adjustable tap on the cathode load resistor VR4 of the valve V2; unity gain is obtained by adjustment of this tapping point. The grid of the valve V3 is connected to a bias potentiometer VR1 whereby the D.C. levels may be equalized. As an alternative, the cathode of the valve V3 may be returned to an adjustable tap on the cathode resistor R1 of the first valve,
Patent GB-401809-A (GB)
Title: Improvements in or relating to the mounting of engines in motor vehicles
IPC: B60K5/12
Filed: 1932-07-12
Abstract: 401,809. Mounting motors &c. LANCIA & CO. FABBRICA AUTOMOBILITORINO SOC. ANON., 99, Via Monginevro, Turin, Italy. July 12, 1932, No. 19705. Convention date, July 13, 1931. [Class 79 (iii).] An engine is attached to the frame of a motor vehicle by laminated springs pressed together and interleaved with layers of frictional braking material where relative displacement of adjacent laminae occurs under bending stresses. At points of attachment where such relative movement does not occur, interleaved layers of soft or yielding material may be provided. As shown, sets of laminae 6 are attached at their middle portions by clips 17 and bolts 5 to the longitudinals 1 and, at their ends, by clips 18 and bolts 8 to cross members 3 and 4 of the engine unit 2, the unit being hinged at its rear end to a resilient blade 16 fixed to a transverse frame member 15. At the ends, where relative displacement occurs on bending, the laminae are pressed together and interleaved with layers 13 of a material having a high frictional co-efficient such as leather, compressed cardboard, impregnated asbestos &c. Each compression bolt 8 passes through rubber blocks 7 located in seatings 7a in the cross members 3, 4, a nut 12 thereon acting through a spring 11 enclosed by a cap 10. At the central attachment 17, the laminae may be interleaved with layers of rubber, rubberized fabric, cork or other soft and resilient material. The arrangement shown may be reversed, the central attachment of the laminae being to the engine and the end attachments being to the longitudinals. Modifications are described wherein the laminae are attached at one end to the engine and at the other end to the frame.
Patent GB-1102596-A (GB)
Title: Improvements in or relating to subhalide distillation process for the recovery of aluminium
Inventor: PHILLIPS NORMAN WILLIAM FREDER
IPC: C01F7/56
Filed: 1966-05-04
Abstract: In the subhalide process for the preparation of aluminium, the mixture of aluminium monohalide and trihalide (chloride or bromide) obtained by passing aluminium trihalide over heated aluminium ores, is cooled, heated or scrubbed by advancing the gas through a confined region and bringing the gas into contact with a molten mixture of salts.  The salt mixture may contain one or more alkali metal or alkaline earth metal halides of the same halogen as the aluminium trihalide and aluminium trihalide if desired.  Sodium chloride saturated with aluminium chloride is preferably used.  The aluminium halide gas passes over the molten salt mixture in a modified splash condenser, good contact being ensured by projecting droplets countercurrently into the gas stream by means of a rotating wheel (Fig. 1) or in a second apparatus by two vertically mounted screws in separate compartments, the gas passing through them in series (Fig. 2). The salt mixture is kept at the required temperature by circulation through a heat exchanger, which is pressurized to ensure constant saturation of the sodium chloride with aluminium chloride. Molten aluminium which forms in the salt mixture is removed either by filtration or by allowing it to settle out in a settling tank.  In the examples, heating and cooling the aluminium chloride is carried out in the range 200 DEG  to 500 DEG  C.
Patent GB-1463904-A (GB)
Title: Electric contact testing circuits
IPC: G01R27/02
Filed: 1974-05-06
Abstract: 1463904 Measuring low resistances; testing switch contacts SIEMENS AG 6 May 1974 [7 May 1973] 19782/74 Heading G1U The state of a contact p is determined by measuring the resistance across it using a low voltage to avoid altering the condition of its surface. A first current source Q, sends a current i through a contact r 1  to a junction a where it splits between the contact under test p and a measuring resistor R 1 equal to the maximum permissible value of the contact p resistance. If the contact resistance equals R1, the current splits evenly and i/2 flows through Rl. A current source Q2 sends a current i/2 through a comparison resistor R2 and the voltages across R1 and R2 are compared in V1. If the resistance of p exceeds the maximum level, the voltage across R1 is greater than that across R2 and V1 output goes negative indicating an unsuitable contact. If the coupling contacts r 1  and/or r 2  have too high a resistance, the voltage at the output of the current source Ql exceeds a reference Sl to give a fault indication from amplifier V2. Similarly if the resistance of r3 is too high, V3 gives a fault indication.
Patent GB-417351-A (GB)
Title: Improvements relating to loom pickers
IPC: D03D49/36
Filed: 1933-07-13
Abstract: 417,351. Loom pickers. DILWORTH, P. J., 47, Grey Street, Burnley Lane, Burnley. July 13, 1933, No. 19801. Addition to 353,953. [Class 142 (iii).] In pickers of the kind claimed in the parent Specification, the intermediate abutment C is connected or formed in a piece with the body of the picker.
Patent GB-672951-A (GB)
Title: Improvements in or relating to pipe couplings
IPC: F16L37/12
Filed: 1949-07-29
Abstract: 672,951. Pipe couplings. BRIEDEN, K., and KUHME, E., (trading as MASCHINENFABRIK K. BRIEDEN & CO., K. G.). July 29, 1949, [Aug. 2, 1948], No. 19928/49. Class 99 (i) A detachable coupling device adapted to engage the abutting flanges b, n of the pipes comprises a U-shaped collar d engaging behind the flange b, and having at the end of each arm a bolt q and a nut, dr a spring-urged plunger projecting towards the pipe a to prevent removal of the collar, and a U-shaped wedging collar h, the arms k of which have a surface engaging the flange n, and an inclined surface engaging an inclined surface g on lugs f carried by the collar d. The lugs f have pins m engaging slots i in the arms k. The wedging collar h is driven to tighten the joint in the same direction as that in which the coupling is assembled on the pipes. The bolt q may have a ring s to receive a chain or rope for suspending the pipes.
Patent GB-720340-A (GB)
Title: Improvements in or relating to apparatus for deriving unmodulated electric oscillations from amplitude modulated electric oscillations
IPC: H03D1/00
Filed: 1952-08-07
Abstract: 720,340. Radio receiving systems; valve circuits. GENERAL ELECTRIC CO., Ltd., and EASTER, B. Aug. 10, 1953 (Aug. 7, 1952], No. 19940/52. Class 40 (5). In order to derive the carrier wave from amplitude-modulated waves, they are passed through a variable-gain amplifier I provided with a quick-acting automatic gain control 3, 4, 5 which partially removes the modulation, and then through a band-pass filter 2 selecting the carrier component. The filter 2 may alternatively be adjusted to pass waves derived from the carrier-wave, e.g. by frequencychanging. The carrier-wave thus isolated may be used to control the frequency of a further transmitter.
Patent GB-895145-A (GB)
Title: Separation of sterols
IPC: A61K31/685
Filed: 1958-06-23
Abstract: Sterols are separated from fatty materials containing a substantial amount of sterol material by saponifying the fatty material in a methanolic alkaline medium, acidulating the resulting saponified mixture to convert the resulting soaps to free acids, e.g. with sulphuric acid, separating the resulting glycerol-containing aqueous phase and a sterol containing phase, dissolving the sterol-containing phase at a raised temperature in a methanolic solvent medium, cooling the resulting solution to a temperature from 0 DEG C. to 20 DEG C. to selectively crystallise sterols therefrom, and separating the crystallised sterols.  The methanolic solvent medium may consist of 9%-100% by volume of methanol, 0%-90% of acetone or methyl ethyl ketone, and 0%-10% by volume of water.  Materials which may be used in the above process are deodorizer sludges, e.g., derived from vegetable oils such as soybean oil, cottonseed oil, corn oil and safflower oil, fatty acid distillation residues, and still bottoms such as tall oil still bottoms and soap stocks.
Patent GB-444235-A (GB)
Title: Improvements in hydraulic broaching machines
IPC: B23Q5/06
Filed: 1935-07-12
Abstract: 444,235. Hydraulic broaching-machines. FORST, O., 181, Schutzenstrasse, Solingen, Germany. July 12, 1935, No. 20023. Convention date, July 13, 1934. [Class 83 (iii)] [See also Group XXIX] A vertical hydraulic broaching-machine wherein the piston 2 of the cylinder 1 causes the tool 5 to be pulled through the work 6 on the downward stroke has a loaded valve 9 which is located in the pipe 20 leading from the lower end of the cylinder and which causes a back pressure beneath the piston so as substantially to balance the weight of the downwardly moving parts. A reversible pump 10, controlled by an auxiliary hand operated valve 19 supplied by a pump 17, is fed from a reservoir 15 through an air control valve 16 which is also operated from the valve 19. When the main valve is in the position shown in Fig. 1 oil is delivered to the upper end of the cylinder through a pipe 13 and the exhaust passes to the reservoir past the spring seated cone 11, Fig. 2, in the back-pressure valve. For the return stroke a disc 21 of the back pressure valve is displaced to the dotted position in Fig. 2 so that the pump delivery to the lower end of the cylinder is unrestricted. In order to exhaust air from the cylinder a narrow pipe 14 is connected to the upper end thereof while the supply pipe 13 opens a little below the end of the cylinder. After the piston at the upper end of its travel has closed the pipe 13 the remaining oil together with any air is ejected at high velocity through the pipe 14 and valve 16 to the reservoir. The work is mounted on the table 7 and is surrounded by a lubricant receptacle 23 constantly supplied from a pipe 22.
Patent GB-1284474-A (GB)
Title: Acrylonitrile polymer mixtures with an affinity for acid dyes
Inventor: RINKLER HEINRICH
IPC: C08L33/02
Filed: 1970-04-27
Abstract: 1284474 Acrylonitrile polymer mixtures FARBENFABRIKEN BAYER AG 27 April 1970 [26 April 1969] 20074/70 Heading C3P A polymer mixture which can be formed into filaments, fibres or films having a high affinity for acid dyes comprises (A) polyacrylonitrile or a copolymer containing at least 50% by weight of acrylonitrile units and (B) a copolymer of a vinyl monomer and a copolymerizable cyclic imide substituted on the imide nitrogen by an aliphatic, aromatic or heterocyclic radical, which radical contains another tertiary or quaternary nitrogen atom; component (A) constituting at least 60% by weight of the mixture of (A) and (B). Suitable as comonomers in (A) are (meth)- acrylate esters, vinyl esters, styrene and neutral derivatives thereof, vinyl or vinylidene chloride, vinylidene cyanide, unsaturated sulphonic acids and salts thereof, (meth)acrylic acid and unsaturated (e.g. methacryloylamino-substituted) disulphonimides. Copolymer (B) is suitably obtained by polymerizing an unsaturated anhydride, e.g. maleic anhydride, with a vinyl monomer such as styrene, an unsaturated ester or a vinyl ether, reacting the resulting copolymer with an amine containing a primary amino group and also a tertiary nitrogen atom and, optionally, quaternizing the reaction product. The polymer mixtures can be spun or cast from solutions in solvents such as dimethylformamide, dimethylacetamide or dimethyl sulphoxide.
Patent GB-1466838-A (GB)
Title: Positive closure system for free floating piston valve
IPC: F16K17/10
Filed: 1975-05-13
Abstract: 1466838 Fluid-pressure servomotor systems WESTINGHOUSE ELECTRIC CORP 13 May 1975 [16 May 1974] 20103/75 Heading G3P A valve 42 held closed by high-pressure fluid admitted to a chamber 46 by a valve 52 is allowed to open when the valve 52 is closed and a valve 48 opens to connect the chamber 46 with a lowpressure region. The valves 48, 52 are arranged to open alternately and may be controlled by an emergency trip gear for a steam turbine, the valve 42 allowing steam between the high and lowpressure stages to escape to atmosphere.