baber/WOPTO huggingface dataset:
Patent GB-722830-A (GB)
Title: Reed plate of a reed instrument such as a mouth organ or accordion
IPC: G10D7/12
Filed: 1952-04-04
Abstract: 722,830. Wind musical instruments. HOUGH & KOHLER, Ltd. April 4, 1952 [April 7, 1951]. No. 8623/52. Class 88 (2). [Also in Group XXIX]. A flap valve for a reed plate of e.g. a mouth organ consists of a strip 20, Fig. 5, of plastic forming a closure member and one or more strips 21, 22 of plastic acting as springs. The sealing surface of the strip 20 has a layer of pulverous material cemented thereto to prevent sticking. In a modification, a recess in the strips 23, 24, Fig. 4, provides clearance for a reed.
Patent GB-622599-A (GB)
Title: Improved clip for fastening rods, tubes and pipes
IPC: F16L3/04
Filed: 1947-04-01
Abstract: 622,599. Spring clips. VAUXHALL MOTORS, Ltd., and SMY, M. C. April 1, 1947, No. 8740. [Class 44] A clip A, Figs. 1 and 2, for fastening a tube or the like B to an apertured support C comprises a single piece of wire or strip bent to form loops c partly to encircle the tubes at axially spaced points and having shouldered claws e to pass through an aperture b in the plate and engage the sides by spring pressure. One of the encircling loops c is formed by the overlapping ends of the wire. The claws are compressed together by a tool for introduction into the aperture. In another form, Fig. 7, for fastening more than one tube the clip has loops g and h partly to encircle the tubes and spring loops f and l parallel to and vertical to the plane of the support C respectively, the claw ends i and m being adapted to engage separate apertures b and b<SP>2</SP>.
Patent GB-1423312-A (GB)
Title: Device for controlling the transfer of a liquefied gas
IPC: F16K35/02
Filed: 1973-02-22
Abstract: 1423312 Fluid-pressure servomotor systems J-CCOUREAU 22 Feb 1973 [22 Feb 1972] 8754/73 Heading G3P [Also in Division F2]  A valve 41 controlling transfer of liquefied gas from a storage tank 1 to a consumer circuit 1a is biased towards its open position by the gas pressure in a bellows 48 and moves to this position when a release mechanism 45 is operated by a control member 51. The valve is now locked in the open position by engagement with the same release mechanism and the flow of gas causes the temperature in an adsorbent body 47 to fall producing a fall in pressure in the bellows and reversal of bias on the valve which is thus returned to the closed position when the release mechanism is again operated. In Fig. 2, the absorbent body 6 is connected by an adsorption valve 71 with the transfer conduit and by a desorption valve 91 with a tank 8 connected by a transfer valve 101 with a storage tank 1 for the liquefied gas and with an escape conduit 8b fitted with a pressure relief valve. A release mechanism 51, similar to that of Fig. 1, is also provided. Before gas transfer takes place, the pressure in the tank 8 is equal to that of the absorbent body and greater than that in the tank 1 and all valves are closed. When the valve 41 is opened, the flow of gas causes the temperature of the body 6 to fall until the valves 71 and 101 open, the valve 101 being controlled by a bellows 103 subjected to the temperature of the body. Flow of gas from the tank 8 through the valve 101 into the tank 1 compensates for the fall in pressure in the latter and the release mechanism 51 is again operated to cause the valve 41 to close and the gas flow to cease. The temperature of the absorbent body again rises liberating absorbed gas which opens the valve 9 and flows into the tank 8 where it is stored ready for transfer to the tank 1 when the valve 41 is again opened. The construction of Fig. 2 may be modified by providing a solenoid-operated valve and a fluid-actuated valve (211a, 211b), Fig. 3 (not shown) or a pair of fluid-actuated valves, Fig. 4 (not shown), between the body 6 and a bellows actuating the release mechanism. Alternatively, a temperature-responsive valve (230), Fig. 5 (not shown) may be arranged between the bellows and a flask (228) filled with absorbent material which may be alumina or coconut.
Patent GB-1413259-A (GB)
Title: Thermally rupturable disc unit
IPC: B64D37/26
Filed: 1974-02-27
Abstract: 1413259 Temperature rupturable disc SUNDSTRAND CORP 27 Feb 1974 [21 March 1973] 8784/74 Heading ASA A temperature rupturable disc unit for insertion in the wall 14 of a fuel tank comprises a tubular housing 16 open at both ends, a disc element 24 sealingly secured across the inner end 18, and support material 42 meltable at a particular temperature arranged to support the disc element 24 in a dome shape, which material on melting allows the disc to rupture by pressure from within the tank. A cruciform knife blade arrangement 30 coming to an apex assists in rupturing the disc element 24.
Patent GB-928172-A (GB)
Title: Improvements relating to telephone exchange systems
Inventor: DRAKE BERNARD
IPC: H01H1/60
Filed: 1961-03-10
Abstract: 928,172. Automatic exchange systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb. 2, 1962 [March 10, 1961], No. 8853/61. Drawings to Specification. Class 40 (4). Contact-wetting and/or pad-switching potentials are applied to a switching connection in a transmission path at an exchange but are insufficient to ensure the breakdown of highresistance films existing on any of the contacts of the connection, means being provided for producing a potential surge through the connection in order to effect breakdown of any such films. As described, the surge is produced by means of a capacitor charge/discharge circuit comprising two capacitors connected to different potentials and to centre tappings on two transformer windings connected across the transmission path on either side of the switching connection. Specification 926,684 is referred to.
Patent GB-1486859-A (GB)
Title: Hydro-pneumatic suspension unit
IPC: B60G17/00
Filed: 1975-03-04
Abstract: 1486859 Adjustable self-levelling suspension units NISSAN MOTOR CO Ltd 4 March 1975 [19 March 1974] 8863/75 Heading F2S In a self-levelling piston-cylinder suspension unit of the type having inlet and outlet ports 38, 40 in the cylinder head 18 communicating with a source and a sink and controlled by a spring-biased valve 28, the mean height to which the unit returns after changes in load is selectively adjustable, independently of the load, to predetermined positions, determined by a plurality of plungers. The mean height is adjusted by manual operation of a valve 110 controlling flow of fluid from a pump to adjust the position of two (or three, Fig. 2, not shown) plungers 82, 88 and hence the seating 94 for the levelling spring 46. To adjust the plungers from the position shown, a lever 138 is operated to move a slide 120 to its next position to cause the control valve to supply fluid to a passage 96. The plunger 82 therefore rises until it hits the top of its cylinder, at the same time raising the plunger 88, and the spring seating 94. The levelling spring 46 moves the self-levelling valve member 28 up to uncover the inlet port 38, and liquid flows in to extend the unit until the springs 44, 46 balance with the valve member 28 in its equilibrium position. The new mean height is higher than the original one by an amount corresponding to the distance the plunger 88 has moved. Static variations from this new mean height cause the valve member 28 to move to allow communication with source or sink to return the unit to the new mean height in the usual way. To adjust the unit to an even higher mean height, the lever moves the slide to its last position, and fluid is supplied to passage 98 instead of passage 96. The plunger 82 is therefore forced down, but the plunger 88 is raised right up to the top of its cylinder. As the levels are determined by the plungers hitting rigid stops, fluctuations in fluid pressure do not affect the predetermined positions. The second embodiment (Fig. 2), having three plungers, gives four alternative heights.
Patent GB-744005-A (GB)
Title: Improvements in or relating to coated regenerated cellulose film
IPC: C08J7/052
Filed: 1953-10-21
Abstract: A moisture-proof composition for application to regenerated cellulose film comprises a substantially water-insoluble polymeric moisture-proofing substance and the ester reaction product formed by first reacting a polyhydric phenol with a polyhaloalcohol, epihalohydrin, or polyepoxy compound and then reacting the resultant epoxy-ether resin with drying oils, drying oil fatty acids, or mixtures thereof.  Moisture-proof substances are butadienestyrene copolymer, or a polyethylene solid at room temperature and having a crystalline structure.  In examples: (1) the reaction product of bis-phenol with epichlorhydrin is reacted with a linseed oil-oiticica oil fatty acids mixture and the resulting product thinned with naphtha and xylene, and treated with n-butanol and cobalt and calcium naphthenates (A).  Solid polyethylene is dispersed in xylene and mixed in a pebble mill to form a gel (B).  (A) is mixed with (B), to give a mixture containing 0.5-13 per cent polyethylene, and the mixture is further diluted with organic solvents.  (2) A solution of butadiene-styrene copolymer is used in place of (B) in (1), and the fatty acids mixture has dimer acids added thereto. Specification 700,538 is referred to.ALSO:A substantially water-insoluble polymeric substance, e.g polyethylene or butadiene-styrene copolymer, is substituted for the wax in the coating on the food wrappers of Specification 700,538, which comprise a regenerated cellulose film carrying a coating including a drying oil acid ester of an epoxy-ether resin. The wrapping is particularly suitable as a casing for liver sausage, since cracking and peeling of the coating, discolouration, and hard crust formation during cooking are eliminated.
Patent GB-139916-A (GB)
Title: A new or improved tilling tool
IPC: A01B19/02
Filed: 1919-04-09
Abstract: 139,916. Sykes, G., and Palmer, R. G. April 9, 1919. Hand-tools for working soil.-A tilling tool or implement consists of coils or spirals of wire or other material fixed on a frame provided with an operating-handle. In the hand-tool shown in Fig. 3, the open coils 5 are fastened to cross-bars. 6 rivetted to a plate 7 provided with a socket 8 for a handle 9. The coils may be arranged diagonally, or so as to intersect, &c. The wires may be of circular, triangular, rectangular, or other section.
Patent GB-700472-A (GB)
Title: Improvements relating to electric control systems
Inventor: CROWTHER FRED
IPC: H02P1/04
Filed: 1951-04-17
Abstract: 700,472. Protective cut-out arrangements. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. March 5, 1952 [April 17, 1951], No. 8965/51. Class 38(5) A protective control system has a circuit-breaker or contactor 1 remotely disposed from a controlled apparatus, e.g. a motor 2, and controlled by a relay 3 which has a coil 18 in series with a pilot conductor 5, a starting switch 6, a half-wave rectifier 17 and an a.c. supply source 4, the relay also having a second coil 19 short-circuited on itself. To start the motor, the switch 6 is moved to the " start " position 8 and the relay coil 18 is energized by the half-wave rectified current flowing in the pilot circuit. The switch is then moved to the " run " position 9 to insert a resistance 10 into the pilot circuit to reduce the excitation of the coil 18 to a level sufficient to keep the relay 3 closed, but insufficient to reclose it on the restoration of the supply after a failure. The short-circuited coil 19, which may be a tube or single ring of copper of heavy section, is at this stage effective to prevent chattering. In the event of an earth fault in the pilot conductor 5, the rectifier 17 is shorted out of the pilot circuit and a full-wave alternating current flows through the coil 18. Under these conditions, the impedance of the relay is such that the relay is not sufficiently energized for it to remain closed and the circuit-breaker is opened. A resistance 20 limits the current which would flow when the pilot wire is shorted to earth.
Patent GB-1198595-A (GB)
Title: Improvements in Sandblasting Installation.
Inventor: WEIJSENBURG PER TORSTEN
IPC: B24C5/02
Filed: 1969-02-19
Abstract: 1,198,595. Blasting. ATLAS COPCO A.B. 19 Feb., 1969, No. 8999/69. Heading B3D. A sandblasting installation of the kind comprising :- (i) a sand container; (ii) a mixing chamber located therebeneath and forming part of a conduit extending from a source of gaseous sand transporting medium under pressure to a blasting nozzle ; and (iii) a sand feed tube connecting the sand container with the mixing chamber and having a lower end portion extending from above into the mixing chamber in a manner to leave a free flow passage for the gaseous medium through the upper portion thereof is characterized in that the mixing chamber has a bottom portion under the sand feed tube which is vertically adjustable towards and away from the lower end of the sand feed tube. A pressure-tight sand container 1 having a removable lid 1<SP>1</SP> covering a charging opening is secured by a bracket 2 to a tubular casing 3 having an elastic lining 4, e.g. of rubber. Sand enters the mixing chamber 5 through a feed tube 6 vertically adjustable by screwing in or out of the bracket 2, the lower end of the tube penetrating the lining 4 and extending into the mixing chamber 5. Below the outlet 7 of the tube sand normally forms a heap 8. The feed tube 6 is narrow enough to leave a substantial part of the upper cross-sectional area of the chamber 5 free for the passage of air, and the heap 8 never grows so large that it blocks the passage through the chamber. The outflow of sand from the container may be aided by vibration. One end of the mixing chamber is connected through a conduit 9 and valve 10 to a source of pressure air. A branch conduit 11 leads to the container 1. The other end of the chamber is connected by a conduit 12 to a gun 13 having a nozzle 18 normally closed by a plate 17, e.g. of tungsten carbide, on a pivoted arm 14 loaded by a spring 16 ; and operated by a trigger 15. The casing 3 has a sleeve 19 containing a piston 20 adjustable by a screw 21 so that the portion of the lining 4 forming the bottom of the mixing chamber can be moved towards or away from the outlet 7 of the feed tube 6 to vary the size of the heap 8 and thus the proportions of sand and air. In the uppermost position of the piston 20 the outlet 7 is closed, and the apparatus can be used as an air blower. The piston 20 may be pneumatically or hydraulically actuated, with remote control, the screw 21 then determining its lowest position.
Patent GB-1454139-A (GB)
Title: Method of forming abead of a pneumatic tyre casing on a tyre-  building drum
IPC: B29D30/18
Filed: 1974-02-28
Abstract: 1454139 Setting bead cores in manufacture of pneumatic tyres VSES NI I KONSTRUKT INST PO OBORUDO DLYA SHIN PROMYSHLENNOSTI 28 Feb 1974 9019/74 Heading B7C One end of a group of carcass plies 1 mounted on a drum 2 is rigidly gripped by a pair of elements 3, 4, on levers of a gripping mechanism so as to prevent slipping of the plies relative to the elements, and the elements are then moved by the mechanism radially and axially inwardly relative to the drum. A bead core 8 is, subsequently (Figs. 1 and 2) or simultaneously (Fig. 5), applied by setting means 9, and, after removal of the setting means, the elements are moved to turn the end of the group of plies about the bead core. The rigid gripping is maintained until the end of the group of plies is turned-up, so that, depending on the position at which the end is rigidly gripped, the bead core setting may result in the group of plies being stretched.
Patent GB-105166-A (GB)
Title: Improvements in Railway Fouling-bars and Treadles.
IPC: B61L1/00
Filed: 1916-03-24
Abstract: 105,166. Sykes Interlocking Signal Co., W. R., and Tarrant, R. W. March 24, 1916. Safety, fouling, and locking bars.-A fouling bar or treadle of the kind wherein the contact bar is supported by one limb of each of a series of levers turning about axes which extend transversely to the rails, the other limbs of the levers supporting a coupling-rod formed in adjustable sections, has the supporting-levers in the form of right-angled bell-cranks, of which the arm 20 supporting the contact, bar is normally approximately horizontal, and that 23 supporting the coupling-rod 25 is approximately vertical. The spindle of one of the bell-cranks may carry an electric switch for controlling circuits to any desired apparatus.
Patent GB-374183-A (GB)
Title: Improvements in or relating to stone dressing, metal planing and like machines
IPC: B24B19/26
Filed: 1931-03-25
Abstract: 374,183. Planing curved surfaces. COULTER, W. H. and COULTER, J. B., Bank Foot Foundry, Batley, Yorkshire. March 25, 1931, No. 9072. [Class 83 (iii).] In stone-dressing, metal-planing or like machines, mechanism for producing a concave or convex surface comprises a work support A pivoted above a reciprocating table B and caused to rock by the action of a roller a<5> which slides in a slotted guide C and is carried by a cranked lever a<2>, a4 linked to the end of the work support and pivoted on a bracket a3 attached to the table B. The inclination of the guide C to the horizontal is adjusted by a worm e and indicated by a plumb line F and the guide is clamped by a bolt e<5> and segment e4. In a modified device (Fig. 4) the end of the work support is attached to a cross - bar a<6> carrying blocks a<5> which slide in the slotted sides of a pivoted guide frame C adjusted by means of screwed rods G and provided with an indicating pointer worked by a rack j<2>.
Patent GB-864576-A (GB)
Title: Refining uranium
IPC: C22B60/02
Filed: 1945-04-11
Abstract: 864,576. Refining uranium; crucibles. UNITED KINGDOM ATOMIC ENERGY AUTHORITY. April 11, 1945 [April 28, 1944], No. 9034/45. Class 82(1) [Also in Groups XI and XXII] Uranium metal is refined by supporting a mass of the metal on a strainer, heating the mass under reduced pressure, preferably not exceeding 10 microns, to cause the uranium to melt and flow through the strainer, condensing any vaporized impurities on a surface adjacent the uranium, collecting unvaporized impurities on the strainer and collecting the purified uranium in an inert atmosphere. The operation may be carried out in the apparatus shown in the Figure, the impure uranium 1 being supported on strainer 2 in a crucible 3 which is mounted on a mould 4. These parts may be made of beryllia or thoria or of carbon, graphite, silicon carbide or alumina lined with beryllia or thoria. The mould rests on a tungsten block 6 and support 7. The whole is contained in envelope 11 of refractory glass. Vertically adjustable induction coil 12 is first lowered to heat the block 6 above the melting point of uranium, then raised to the position shown to heat the uranium. A tungsten coil 15 is heated by induction and in turn heats the uranium by conduction through the crucible, heat loss being minimized by radiation shield 9 and cover 10. Vaporized impurities are condensed on the surface of envelope 11 which may be cooled by fan 13. Vacuum is maintained through tube 17 and the uranium cast in mould 4 is cooled to room temperature in an inert gas atmosphere admitted through tube 18.
Patent GB-766429-A (GB)
Title: Improvements in polyvinyl chloride resins
IPC: C08L27/06
Filed: 1955-03-29
Abstract: A composition comprises polyvinyl chloride prepared by emulsion polymerization and from 2 to 5 parts by weight of butadiene-acrylonitrile copolymer rubber per 100 parts by weight of polyvinyl chloride, the copolymer rubber containing from 18 to 22 per cent combined acrylonitrile.  The composition may contain cadmium compounds and organo-tin compounds as stabilizers, and is suitable for the production of rigid pipes.
Patent GB-910653-A (GB)
Title: Improvements relating to variable ratio transmission mechanisms
Inventor: GILES JOHN GEORGE
IPC: F16H47/04
Filed: 1959-03-17
Abstract: 910,653. Variable-speed gear. MOTOR INDUSTRY RESEARCH ASSOCIATION. March 17, 1959, No. 9158/59. Class 80 (2). A hydro-mechanical split-torque variablespeed gear comprises a sun-ring planet train 2 combined with a pump and motor fluid gear 1, the motor output 4 of which is transmitted through a ratchet, rotor, ball or sprag type oneway clutch 3 to the output shaft 10 of the epicyclic gear, thus preventing reversal of power flow in the fluid gear whilst its components are rotating in the normal sense. As shown, the planet gears are fast with an input shaft 7, the sun gear 8 drives the pump 9 of the fluid gear and the ring gear is fast with the output shaft 10. In Figs. 6 ... 8 (not shown), a one-way clutch is provided between the output of the fluid gear and the ring gear of one of two epicyclic trains of the gear described in Specification 766,659, wherein the planet carrier of the first train and sun of the second are connected to the input shaft, the ring of the first and carrier of the second are connected to the output shaft, and the sun of the first and ring of the second are geared respectively to the pump and motor.
Patent GB-305866-A (GB)
Title: Improvements in clamps for holding pole and the like sections during splicing
IPC: B25B27/00
Filed: 1928-03-27
Abstract: 305,866. Snapp, J. P. March 27, 1928. Clamps.-A clamp for holding the upper and lower sections of telegraph &c. poles whilst being spliced together by a wire splice 13 of the kind described in Specification 277,905, [Class 20 (ii), Buildings and structures, Miscellaneous accessories &c.], with loop 14 and point 15 at one end and threaded at the other end 16 comprises two jaw members 17, 18 pivoted together at 19 and having jaws 20, 21 curved to the shape of the pole sections 10, 12. An internally threaded sleeve 22 is mounted by means of trunnions 24 in an opening in the member 17 to receive the threaded end 25 of the operating screw 26 which has a shoulder 27 engaging the other member 18, the members being forced apart by a spring 33 acting against washers 31, 32. The clamp is supported above the ground by means of a plate 36 with set screw 38 for securing it to a stake 35. Separate jaw elements 45, Fig. 6, with jaws of different curvature may be secured to the jaws by means of yokes 48 and screws 47 for adapting the clamp for use with poles of different sizes.
Patent GB-393048-A (GB)
Title: Process for the manufacture of an insulating substance for electrotechnical purposes
IPC: C08K5/01
Filed: 1932-03-31
Abstract: An insulating substance for electrotechnical purposes is prepared by adding to vulcanized rubber a hydrocarbon which is a cyclic compound modified by the incorporation of a saturated aliphatic side chain, or a mixture of such hydrocarbons.  The hydrocarbon is added in the liquid state.  The preferred example is retene, and the preferred proportion is 40 per cent by weight of rubber and 60 per cent hydrocarbon.  In an example a submarine conductor is coated with rubber in known manner and the coating is vulcanized.  The coated conductor is immersed in the liquid or molten hydrocarbon and allowed to remain until 60 per cent of hydrocarbon has been absorbed.
Patent GB-163562-A (GB)
Title: Improvements in and relating to electrical fuse holders
IPC: H01H85/30
Filed: 1920-03-31
Abstract: 163,562. Shergold, F., and Maxwell, A. H. March 31, 1920. Fusible cut-outs.-A fuse-holder of the bridge type comprises a part traversed by the fuse-wire channel formed or arranged as a lateral extension to one side of the handle and having an indicating window or like opening so located that it does not require to be touched in manipulating the holder. Fig. 1 shows a straight bridge with the fuse channel and window 10 to one side of the handle 2, Fig. 3, showing in section the fuse channel 3 on the underside of the bridge. Fig. 5 shows a form with curved handle and fuse channel and Fig. 8 an end view of a tubular form with handle 2 and end contacts 5.