baber/WOPTO huggingface dataset:
Patent GB-1345041-A (GB)
Title: 3beta,5beta,14beta,21-tetrahydroxy-pregnan-2o-one and the 3beta, 21-bis-tetrahydropyranyl ether thereof
IPC: C07D/
Filed: 1971-01-18
Abstract: 1345041 Pregnane polyols; periplogenin FARBWERKE HOECHST AG 18 Jan 1971 [28 Jan 1970] 2248/71 Heading C2U The invention comprises 3#,5,14,21-tetrahydroxy - 5#,14# - pregnan - 20 - one (X) and the 3,21-bis-(2-tetrahydropyranyl) ether thereof (XI), and their preparation from a 20-ketal-21- acyloxypregna - 4,14 - dien - 3 - one (IV) wherein the ketal group is ethylenedioxy or 2,2-dimethyltrimethylenedioxy (vide Specification 1,345,042) by the sequence: IV # 3#- hydroxy - 20 - ketal - 21 - (hydroxy or acyloxy) pregna - 4,14 - diene # 3#,21 - diacyloxy-20- ketalpregna - 4,14 - diene # 3#,21 - diacyloxy- 4#,14# - dihydroxy - 5α,15α - dibromo - 20 - ketalpregnane # 3#,21 - (dihydroxy or diacyloxy)- 4#,5#; 14#,15# - diepoxy - 20 - ketalpregnane # X 20-ketal # X # XI. Periplogenin is prepared from X or XI by reaction with lithium ethoxyacetylide followed by acidification.
Patent GB-188592-A (GB)
Title: Improvements in locking devices for artificial limbs
IPC: A61F2/68
Filed: 1922-01-25
Abstract: 188,592. Swain, J. A. Jan. 25, 1922. Limbs, artificial.-A locking dedevice for the hip joint of an artificial limb comprises an upper strap b, attached to a socket fastened to the body of the wearer, pivoted on a pin f in the bifurcated end of a strap c attached to the limb. The strip b has in its lower end of a slot b<1>, and the strap c carries a slot in which slides a spring-pressed locking bolt g. To unlock the joint the bolt is pressed towards the left until a slot g<2> in the bolt is in alignment with the end of the strap b. The bolt and the slot b<1> may be tapered.
Patent GB-639904-A (GB)
Title: Mechanical clutch
IPC: F16D43/02
Filed: 1948-01-26
Abstract: 639,904. Ratchet clutches. GARRETT CORPORATION. Jan. 26, 1948, No. 2320. Convention date, Nov. 29, 1946. [Class 80 (ii)] A clutch which drives in both directions and releases the driven member automatically for movement in both directions on cessation of drive torque, e.g. to permit emergency manual drive in the event of power failure in actuators for flaps, doors, and undercarriages, on aircraft, comprises a pair of elongate pawls 25 each having friction surfaces at both ends, moved radially in opposite directions into frictional engagement with a surrounding driven drum 19 by a toothed pinion 16 forming the end of a driving shaft engaging rack-teeth on the pawls, or by a cam engaging notches therein, Fig. 4, not shown, As the pawls 25 move outwardly, free rollers 24, engaging recesses in the pawls, cam them apart. increasing the grip, and in the absence of drive-torque, U-shaped wire springs 31 draw the pawls 25 together on the rollers thus retracting them from the driven drum 19. A conical spring, Fig. 1, not shown, presses the pawls axially against a fixed friction-plate carried by the stationary housing 22 to provide drag for initiating engagement.
Patent GB-694846-A (GB)
Title: Improvements in or relating to tubular condenser assemblies
IPC: H01G4/248
Filed: 1952-01-29
Abstract: 694,846. Electric condensers. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Jan. 29, 1952 [Feb. 7, 1951], No. 2440/52. Class 37. Cylindrical tube condensers b, c, Fig. 1, of different diameters and having external and internal coatings, are connected in parallel by telescoping one into the other and attaching connections a, d, which as'shown in Fig. 2, connect the external electrode of one with the internal electrode of the other. The electrodes preferably extend at one end over the ceramic tube as shown at 6, Fig. 2, to facilitate the connection together by leads a, d which are soldered on. The inner tube condenser is preferably longer than the outer. More than two condensers may be so connected, Fig. 3 (not shown).
Patent GB-430183-A (GB)
Title: Improvements relating to unidirectional clutches
IPC: B60K17/08
Filed: 1934-01-24
Abstract: 430,183. Free-wheel clutches ; variable speed gearing. MORRIS, J. N., 63B, Islington Row, Edgbaston, Birmingham, BONE, C. C., Mayfair Court, Stratton Street, London, and KENT, R. L., Penn Cottage, Coleshill Road, Marston Green, near Birming- ham. Jan. 24, 1934, No. 2460. [Class 80 (ii)] Main pawls d, Figs. 1 and 3, mounted on arms b on the driving shaft i are urged into engagement with notches c in the driven member a by springs e pivoted at e<1> to a loose disc f having ratchet teeth f adapted to engage pawls g pivoted on the driven member a. If the shaft i rotates in an anticlockwise direction as seen in Fig. 3, the driven member being stationary, the pawls d by engagement with the noses e<2> of the springs e entrain the disc f until one of the teeth f<1> engages a pawl g. Further movement of the pawls d then bends the springs e about a fulcrum at e<3> on the hub f<2> of the disc f, until the pawls are forced into the notches c. When the freewheel clutch is used in a variable-speed gear, Fig. 4, for a motor vehicle, the pawls d may be locked in engaged position by a sleeve k operated from the main clutch pedal p. The pedal p is connected to the operating lever m of the free wheel clutch by a rod q connected by a spring x to an abutment v connected by a spring w to the lever m, the abutment v being subject to an overriding control by a hand-operated Bowden cable t, u so that the free wheel clutch may be (i) permanently locked, (ii) permanently free, or (iii) locked during drive but freed when the clutch pedal p is depressed during gear-changing.
Patent GB-552798-A (GB)
Title: Improvements in or relating to hinge construction
IPC: E05D3/18
Filed: 1942-02-25
Abstract: 552,798. Hinges. ART METAL CONSTRUCTION CO., GRONBERG, V. A., and HULTBERG, L. M. Feb. 25, 1942, No. 2497. [Class 65 (ii)] A door hinge of the concealed type comprises a plate 15 fixed by brackets 28, 32 to the door frame 30 and having a curved slot 22 slidably engaged by a pin 21 on a bent arm 16 fixed to the door 11. A curved link 17 is pivoted at 18 to the frame and at 19 to 16, the arrangement being such that, during the opening movement, the door first moves bodily outwards to the position shown in Fig. 2, and then swings into a plane beyond the corner of the frame. The bracket 32 is a U-shaped member fixed in a channel portion 31 of the frame 30.
Patent GB-100245-A (GB)
IPC: C01G9/06
Filed: 1916-02-19
Abstract: 100,245. Llopart, R. B. April 2, 1915, [Convention date]. Zinc sulphate.-Zinc blende containing other sulphides, such as iron sulphide, is roasted with free sulphur and zinc oxide material or calamine, the roasting being effected in an oxidizing-atmosphere at about 400--500‹ C while avoiding strong air currents. The oxide material may be obtained by roasting zinc blende at 800--900‹ C. until substantially all the zinc sulphide has been converted into oxide. The Specification as open to inspection under Sect. 91 (3) (a) describes alternatives in which free sulphur is admitted, the zinc blende containing or having added to it a sufficient quantity of other sulphides to effect the desired reaction. This subject-matter does not appear in the Specification as accepted.
Patent GB-812422-A (GB)
Title: Improvements in or relating to self-adhesive sheets or tapes
IPC: C09J7/50
Filed: 1956-01-25
Abstract: 812,422. Pressure sensitive adhesive tapes and sheets. BEIERSDORF & CO. A.G., P. Jan. 25, 1956 [Jan. 27, 1955], No. 2509/56. Class 140. A pressure sensitive adhesive tape or sheet comprises a flexible support of an organic hydrophilic or hydrophobic material, an intermediate layer comprising a polyvinyl ether and a copolymer of acrylonitrile and a substance polymerizable therewith, and a pressure sensitive adhesive coating. The intermediate layer may consist essentially of a mixture of from 10 to 80 per cent of the acrylonitrile copolymer and from 90 to 20 per cent of the polyvinyl ether, and may be applied as a solution in an organic solvent, e.g. toluene, trichloroethylene, or as an aqueous emulsion or dispersion, such that the weight of the dried intermediate layer is from 1 to 3 grams per square metre of support. Materials, which may take the form of a foil, film or fabric support, are regenerated cellulose, cellulose ethers or esters, e.g. cellulose acetate, acetate-butyrate, or nitrate, vinyl or vinylidene halide polymers or copolymers, e.g. polyvinyl chloride, polyvinylidene chloride, polystyrene, acrylonitrile copolymers, acrylic or methacrylic ester polymers or copolymers, polyesters of dibasic acids and polyvalent alcohols, polyurethanes, and polyamides. Specified polyvinyl ethers are polyvinyl methyl ether, polyvinylethylether, polyvinylbutylether, polyvinylisobutylether, polyvinyldccylether. Acrylonitrile copolymers disclosed are acrylonitrile-styrene, butadiene, vinyl ether, acrylic acid ester or methacrylic acid ester. The pressure sensitive adhesive may be natural or synthetic rubber, e.g. polyisobutylene, polyvinylether, e.g. polyvinylisobutyl ether, or polyacrylic acid esters. Fillers, elastomers, e.g. polychlorobutadiene or polyvinylchlorobutadiene latex, natural or artificial resins, e.g. phenol-formaldehyde, maleic acid resin, polystyrene and copolymers thereof with vinyl chloride, acetate or ether, wetting and/or thickening agents, e.g. polyacrylic acid salts containing amino groups, silicic acid, dehydroabietylamino acetate, may also be present in the intermediate layer.
Patent GB-1507761-A (GB)
Title: Asynchronous communication interface adaptor
IPC: G06F15/16
Filed: 1976-01-22
Abstract: 1507761 Data transmission MOTOROLA Inc 22 Jan 1976 [18 Feb 1975] 02537/76 Heading G4A A system for controlling asynchronous communication between a bidirectional data bus 14 (Fig. 1) and a peripheral device includes transmitting and receiving shift registers 40, 56 which convert parallel data from a transmitter register 32 to serial form for transmission on line T x  and serial data from the peripheral device to parallel form for a receiver register 38 and a parity generator 46 and parity checker 54 associated with the transmitted and received data respectively. As described the control circuitry is arranged on a MOS integrated circuit semiconductor chip 10 and additionally includes a buffer circuit 12, address logic circuitry 16, status register 34, clock circuitry 44, 58 (separate data rates for transmitting and receiving being possible) and a register 36 controlling transmission and receiver control circuits 42, 52. Parity, word length and the number of start and stop bits are controlled by the control register under the control of signals received on the data bus. The chip 10 is connected via the data bus 14 to a microprocessor (142, Fig. 2, not shown), random access memory (144), read only memory (146) keyboard (150), printer, cathoderay tube and cassettes also being linked by the bus to the processor, select signals CS 0 , CS 1 , CS 2  for determining which device is selected and signals R/W, RS resulting in the selection of one of the registers 32, 34, 36, 38 on the chip 10. The lay out for the chip is given in Fig. 4 (not shown).
Patent GB-284648-A (GB)
Title: Manufacture of glass which is opaque to x-rays
IPC: C03C4/08
Filed: 1928-01-26
Abstract: 284,648. Soc. Anon. des Manufactures des Glaces et Produits Chimiques de St.-Gobain, Chauny, et Cirey. Feb. 2, 1927, [Convention date]. Production of metal.-A glass to be used for X-ray screens contains lead oxide and barium oxide. The proportions of the two oxides are determined by the formula B Î 1.005<(P+35‹)> = 110 in which B indicates the percentage of barium oxide and P is the percentage of lead oxide. A suitable glass contains 45 per cent of lead oxide and 17 per cent of baryta.
Patent GB-799276-A (GB)
Title: Improved electric lamp support
IPC: F21S4/00
Filed: 1955-01-28
Abstract: 799,276. Electric lamp supports. BATEMAN, S. Nov. 11, 1955 [Jan. 28, 1955], No. 2576/55. Class 75(3) A multi-electric lamp support such as for a set of series connected "fairy" lights comprises a body member of resilient insulatory material such as sponge rubber having a plurality of series-connected lamp holders mounted in respective apertures therein, the said body being strengthened if required by one or two plates, e.g. of wood or plastic material. In two embodiments described the strip of sponge rubber is formed into an annular elliptical or circular formation and sandwiched between two plates which are supported in a horizontal or vertical plane on a stand. In another embodiment the body member is of dome formation mounted on a base plate. As shown the sponge rubber annular body 10 sandwiched between two circular strengthening cover plates 25 located by beadings 10a on the body 10 is provided with apertures 13 inclined to the axis of the body into which apertures are fitted the lamp holders 12 for receiving lamps 11. Each aperture 13 of circular section has two diametrically opposed channels 14 disposed lengthwise thereof to take the two conductors connecting in series the lamp holders of a "fairy" light set, the conductor 21 connecting two adjacent holders running over the outer surface of the body 10, the two end conductors, singly and as a pair, being accommodated in bores in the body by passing them through cuts in the body between an outside surface and the respective bores. The assembly of body 10 and plates 25 is secured on the top of a centre pillar 32 having a base 26 by means of a peg 33 of circular cross-section with opposing radial ribs passed through central apertures of corresponding shape in the cover plates and the peg being provided with transverse recesses 33a so that when the plates are passed downwardly over the peg until the bottom plate rests on the top of the pillar 32 and turned with respect to the peg, the radial projecting portions of the apertures become locked in the recesses 33a of the peg. The assembly may be inverted so that the light from the lamps may be directed upwardly or downwardly. Connection to the source of supply is effected by means of a plug 24 and socket 30 secured to the base 26. When the body member 10 is disposed in a vertical plane the cover plates 25 are held in place by beadings on the body member and are secured at a lower portion where no lamp sockets are present, to a base by means of mounting blocks.
Patent GB-1195131-A (GB)
Title: Improvements in or relating to a Thermocopier.
Inventor: RITZERFELD GERHARD
IPC: B41L19/00
Filed: 1968-01-17
Abstract: 1,195,131. Printing-apparatus. G. RITZERFELD. 17 Jan., 1968 [26 Jan., 1967], No. 2577/68. Heading B6C. [Also in Division G2] A thermocopier suitable for the production of hectographic masters comprises a hollow cylinder 11 permeable to infra-red radiation and containing a source of such radiation 21 and a reflector 20, a resilient pressure roller 10 cooperating with the cylinder, and guide means 38, 39 defining a feed slot 22 and adapted to guide the material 26 to be copied and a transfer sheet against the cylinder 11 upstream of the line of pressure E-F connecting the centres of the roller and the cylinder, the generally elliptical interior of the reflector directing the radiation through an opening in the reflector in a zone C-D, the centre line A-B of which is also upstream of the line E-F at the periphery of the cylinder 11. The ink on the material 26 is softened in the zone C-D and is transferred at the line of pressure E-F. The materials in a guide slot 27 may be cooled after printing by a blower as may be the roller and the cylinder. The leading and rear ends of each assembly passing through the slot 22 trip a switch 23 on and off in order to operate the radiator. The cylinder 11 is freely supported by the roller 10 and further rollers 4, 8, the cylinder and the roller 10 being frictionally driven by the roller 4. The roller 4 is driven from a motor 2 by a belt 3. Guide discs 32-35 hold the cylinder 11 laterally. The roller 10 is spring-loaded towards the cylinder 11.
Patent GB-759692-A (GB)
Title: Improvements in or relating to automatic telephone systems
Inventor: CHUBB ALEXANDER ALBERT
IPC: H04Q11/04
Filed: 1951-02-02
Abstract: 759,692. Automatic exchange systems. GENERAL ELECTRIC CO., Ltd. Jan. 31, 1952 [Feb. 2, 1951], No. 2594/51. Drawings to Specification. Class 40 (4). [Also in Group XL (c)] In an automatic exchange system of the type described in Specifications 759,682, 759,687, 759,688 and 759,689, which comprises apparatus for connecting a called and calling subscriber via a preselected one of a series of multiplex channels, equipment is provided for receiving a signal identifying the seized multiplex channel and providing in accordance with the said signal appropriately timed pulses for gating speech signals to and from the preselected multiplex channel. The equipment described is identical with that of the " called unit " described in Specification 759,687. The Provisional Specification also refers to Specification 759,690.
Patent GB-832869-A (GB)
Title: Electrical connector
IPC: H01R13/623
Filed: 1958-01-27
Abstract: 832,869. Two-part couplings. BENDIX AVIATION CORPORATION. Jan. 27, 1958 [Feb. 6, 1957], No. 2688/58. Class 38 (1). The plug-and-socket members 24, 19 of a cable coupling are held in the engaged position by a sleeve member 15 which has part axial, part helical, slots making a bayonet joint type of connection with pins 31 on socket 19 and which press plug member 24 into socket member 19 through a sinusoidal leaf spring 40 in the form of a split ring. The pin-and-socket type contacts 21, 26 are held in rubber or like inserts and the end of plug member 24 is screwed to take a nut 17 which presses a sleeve 16 on to rubber grommet 52 so that the cable cores are gripped for sealing purposes by internal flanges 54 in passages through the grommet. During separation of the coupling sleeve 15 is turned to release the bayonet connection and pulled to bring flange 37 into contact with end 46 of nut 17 and thus pull out socket member 24. In a modification (Fig. 8, not shown), the helical bayonet slots are replaced by curved grooves on the inside of the sleeve member. The grooves are so shaped that initial rotation of the sleeve member, with the grooves engaging pins on the socket member, draws the plug- and-socket members together rapidly while rotation of the sleeve member, as it approaches the fully engaged position, draws the plug-andsocket members together more slowly but with greater force.
Patent GB-310769-A (GB)
Title: Improvements in roller mills for grinding
IPC: B02C4/04
Filed: 1928-01-27
Abstract: 310,769. Cox, H. E., and Torrance, J. R. Jan. 27, 1928. Roller mills. - A grinding mill for the fine grinding of paints &c. comprises two pairs A, B, and C, D of rolls with three grinding regions, the first being between the slow-running feed rolls A, B which subjects the material to a preliminary conditioning or amalgamating action and the other two being between the rolls A, C and B, D, the rolls C, D running at high speed so that the difference in peripheral speeds of the rolls A, C and B, D is considerable and varies between 6 to 1 up to 30 to 1. The slow rolls may have a variable motion imparted to them by eccentric gears, and the rolls A, C, and B, D may be set at an angle. The material to be ground is supplied by a hopper 100 to the rolls A, B, which carry the material to the grinding nips between the rolls A, C and B, D, from which it is collected by the scrapers E. The mill is driven by a shaft J, Fig. 3, which is connected to a countershaft H by pinions 2, 3. The pinion 2 drives a pinion 4 on the fast roll C, and the pinion 3 drives a pinion 5 on the fast roll D. A pinion 6 on the countershaft H drives the slow roll A through wheels 8, 10, 12, Fig. 1, and a pinion 7 nn the shaft J drives the slow roll B through wheels 9, 11, 13. The wheels 8 and 9 are mounted on the bosses of the pinions 10 and 11 respectively which are mounted on adjustable links K and L. Variable motion to the feed rolls is imparted as shown in Fig. 4. A countershaft 60 has a pinion 61 meshing with a wheel 62 on which is a chain pinion 63 which drives a chain wheel-64 by a chain 65. An eccentrically mounted gear wheel 66 fast with wheel 64 drives an eccentrically mounted gear wheel 67 fast with slow roll A. A similar drive is provided for the slow roll B, the drives being arranged to be out of phase. The chain wheel 64 may be mounted on the neck of the eccentrically mounted gear wheel 66, or a gear ring may be mounted on a boss set eccentric to the bore of, and cast on, the chain wheel. Specification 209,829 is referred to.
Patent GB-946469-A (GB)
Title: Improvements in or relating to spraying and/or alarm devices
Inventor: LEAT JAMES HARRISON
IPC: G08B13/00
Filed: 1961-01-24
Abstract: 946,469. Vibration-sensitive alarm devices. MINISTER OF WORKS. April 24, 1962 [ Jan. 24, 1961; July 14, 1961], Nos. 2739/61 and 25595/61. Heading G4N. An alarm system housed in a container is operated by vibration or movement of the container and is operative only when the door of the container is closed, so that the system is inoperative on normal opening or closing of the door. When the door (not shown) is open, a rod 15 is moved by a spring 16 to the position shown where a stop 17 engages a striker 12 to prevent the latter from moving. When the door is closed, rod 15 is moved to a position so that stop 17 and striker 12 no longer engage, so that in the event of any movement of the container striker 12 will hit a lever 9 releasing a spring 6 and bridging contacts 19 thereby releasing a spray of coloured liquid on depression of button 2 on container 1 and completing an alarm circuit respectively. In the embodiment of Fig 4, the detent for the striker arm 25 is provided by a plate 20 rotated in the position shown on closure of the door by engagement of a rack on the door (Fig. 3, not shown) with a pinion 21 on the plate. A delay device is included in this system in the form of a dashpot 27, the piston 30 carrying a projector 34 so that as the piston moves slowly downwards projector 34 will eventually register with a notch in the striker to allow the latter to operate. The bottom of the dashpot is closed by a ball 35 and provided with a bleed hole 29, the ball falling away from the hole 28 when the door is opened which reverses the position of the dashpot. In the embodiment of Fig. 5, release of striker 40 will fracture a glass member 52 allowing the plunger 48 to move under spring action to fracture capsule 44 on the end of a nozzle of a dye container and release the contents. In a further embodiment (Fig. 6, not shown) a latch is provided to restrain the striker when the door is open, but release the striker after a time delay.
Patent GB-796277-A (GB)
Title: Apparatus for a continuous pulping of fibrous materials
IPC: B23K35/30
Filed: 1957-01-25
Abstract: 796,277. Continuous pulping of wood chips &c. IMPROVED MACHINERY, Inc. Jan. 25, 1957 [Jan. 26, 1956; June 29, 1956], No. 2757/57. Class 96. In continuously pulping wood chips &c., the chips, mixed with a chemical solution, e.g. in a tank 12, are pumped at 16 to the lower end of a pressurized container 22 having a safety-valve 18 and a liquid-recirculating outlet 29, and a perforated piston 32 having a central opening whereby the chips &c. may pass upwardly, the piston being e.g. of the form of a one-turn, helical screw and which may be rotated by an hydraulic motor and gearing (not shown in Fig. 1) and may be reciprocated hydraulically, e.g. with the aid of an hydraulic cylinder 50, the upward stroke being much slower than the return stroke, the chips &c. being thus compacted and advanced upwardly through the container 22, which may diverge upwardly, to a filter 28 and a discharge mechanism 26. In a modified form, the liquid and the chips are delivered separately with the aid of a rotating feed valve which discharges into the container 22 at a position intermediate of the ends of the stroke of the piston which is not helical and has no central opening. Projections on the pistonrod actuate contacts for solenoids for control of the hydraulic operation of the piston and the rotary movement of the valve.