baber/WOPTO huggingface dataset:
Patent GB-353832-A (GB)
Title: Sterilisation apparatus for dressing material
IPC: B01D29/00
Filed: 1931-02-16
Abstract: 353,832. Sterilizing apparatus. BRINKMANN, K., 54, Moltkestrasse, Paderborn, Germany. Feb. 16, 1931, No. 4888. Convention date, Feb. 17, 1930. [Class 81 (i).] Relates to sterilizing apparatus, for surgical dressings, of the kind in which perforated dressing-containers c are placed in a chamber 5 and steam is passed downwards through the containers, as shown by the arrows. According to the invention, a rubber ring 3 or other packing is provided to prevent the steam from passing down through the annular space s instead of going through the containers c.
Patent GB-744735-A (GB)
Title: Improvements in or relating to the manufacture of permanently crimped yarns from fully synthetic organic textile fibres
IPC: D02G1/02
Filed: 1954-02-19
Abstract: 744,735. Crimping yarns. HEBERLEIN & CO., AKT.-GES. Feb. 19, 1954 [Feb. 26, 1953], No. 4937/54. Class 120 (3). In the manufacture of crimped yarn consisting of fully synthetic organic fibres, e.g. of polyamides such as nylon, polyvinyl compounds such as polyacrylonitrile, polyesters such as polyethylene terephthalate, by temporarily hightwisting the smooth yarn by means of a falsetwisting device in the same or the opposite sense to the initial twist, the yarn in the highly twisted state is passed for a period of from 2 to 30 seconds through a heated channel containing a gaseous medium, e.g. hot air from which the oxygen may be displaced by the introduction of superheated steam or hot inert gas, having a temperature between 150‹ and 30‹ C. below the melting point of the fibre material, e.g. 190- 210‹ C. for polyhexamethylene adipamide or 165-185‹ C. for #-caprolactum, and is subsequently passed through a cooling zone. The channel may be a metal tube heated by an electric coil or flow of current therethrough, or a jacketed tube heated by hot fluid such as water, oil, steam or vapour of a volatile substance. The yarn may be impregnated with water which may contain a wetting agent, e.g. sodium diisobutyl-naphthalene sulphonate, before high twisting. Two yarns may be given temporary high twist in opposite directions and subsequently doubled, the product having a normal twist. Specifications 606,257 and 611,538 are referred to.
Patent GB-1048094-A (GB)
Title: Multi-point writing instrument
IPC: B43K24/16
Filed: 1964-02-05
Abstract: 1,048,094. Multiple-retractable writing instruments. K. H. HEINZ. Feb. 5, 1964 [Feb. 6, 1963; Feb. 19, 1963], No. 4939/64. Heading B6P. In a multiple retractable writing instrument (ball point pen or pencil lead), the pendulum 11 for selecting a particular lead carrier 2 is guided within the aperture of a guide member 14, which aperture has outer corners disposed axially over the heads 7 of the lead carriers. Figs. 3, 9 and 11 (not shown) illustrate three different types of apertures. The retracting mechanism of proven type may be telescopic-cap actuated, as shown in Fig. 5, or push-button actuated as in Fig. 1 (not shown). The retracting means may be of the type in which each individual supporting rod 3 of a lead carrier 2 is individually locked when moved forwardly to the writing position and automatically released and retracted when another rod 3 is moved forwardly. Markings 12, Fig. 5, disposed diametrically opposite a particular lead carrier indicate the nature of the lead, e.g. colour.
Patent GB-797252-A (GB)
Title: Improvements in or relating to earth-working implements
IPC: A01B21/08
Filed: 1957-02-13
Abstract: 797,252. Agricultural implements. FORD MOTOR CO., Ltd. Feb. 13, 1957 [Feb. 13, 1956], No. 4948/57. Class 6(1). An agricultural implement such as a disc harrow is provided with a main frame 16 connected by means of a three point suspension to an A-frame which is adapted for attachment to a tractor power-tifted draft linkage. As shown the top of the A-frame 31 is connected by a strut 49 to the rear of the frame 20 and the front of the frame 20 is connected by links 41 to the lower part of the A-frame. Disc gangs 11, 12 are mounted on frames which are pivoted on bolts 18, 18<SP>1</SP> and are free to move along the frame 16, the frames being provided with portions 19 overlaying the frame, captive pins 26 being provided to lock the frames in position. The gang frames are provided with a brass member 27 having a bifurcated end which engages in the horizontal flanges of the front and rear members 29, 30. A forward extension 48 is mounted on the frame 16 and engages under the A-frame to limit the upward movement of the front of the harrow.
Patent GB-1070249-A (GB)
Title: Communication repeater system
Inventor: HUTCHISON PAUL TRICE
IPC: H04B7/185
Filed: 1966-02-04
Abstract: 1,070,249. Automatic volume control; radio signalling. WESTERN ELECTRIC CO. Inc. Feb. 4, 1966 [Feb. 9, 1965], No. 4955/66. Heading H4L and H4R. In a wideband repeater amplifier, e.g. in a satellite, which relays signals in any one or more of a number of different signal transmission frequency bands, the total power applied to the amplifier, which may be a travelling wave tube, is adjusted to the optimum for the particular number of simultaneously present signals by an automatic volume control which incorporates a comparator and a reference level in the control circuit, in which the reference level is adjusted in accordance with the number of signals present at any one time. In the embodiment of Fig. 1 the signal after pre-amplifier 13 is applied to a bank of band-pass filters 17a to 17g distributed aoross the transmission band of the repeater. The filter outputs are rectified in rectifiers 18a to 18g and applied to monostable triggers to cause outputs on the lines to summing network 20 so that the level on the output of summing network 20 is proportional to the number of signals being transmitted. The summing network output is applied to switches 21 1  to 21 4  and these switches are operated in accordance with the level of the input signal to provide the appropriate reference level to the comparator circuit 22. In comparator 22 a signal from monitor 14, depending on the total power in the transmission, is compared with the reference level, dependent on the number of individual signals, to produce a control voltage for the variable impedance device 12 which is controlled to provide the optimum power level having regard to the number of signal channels in use. In the described embodiment the out. puts of the 17b-19b, 17d-19d and 17f-19f, are arranged to be negative relative to the outputs of the remaining channels and it is shown that with the possible arrangements of channels peculiar to this particular system, some channels being wider than others, the output of the summing network is always proportional to the number of channels in use since the wider channels always overlap three band-pass filters, e.g. 17a, 17b and 17c, two of which, 17a and 17c, result in a positive signal to the summing network with one negative signal, from 17b, so that the net result is one positive signal input to the summing network.
Patent GB-919953-A (GB)
Title: Improvements in or relating to water depth gauges
Inventor: DEAN DEREK JOHN
IPC: B63C11/02
Filed: 1961-02-10
Abstract: 919,953. Depth gauges. SANGAMO WESTON Ltd. Sept. 29, 1961 [Feb. 10, 1961], No. 5079/61. Class 106 (2). A gauge for measuring water-depth below the surface comprises a plate-like transparent cover 10 formed on its rear surface with a groove 16 and a gasket 18 covering the groove to form a capillary tube open to the exterior through a port 17 and closed at its other end. Water enters the groove up to a point determined by the external pressure indicated by markings along the length of the groove. The markings may be transparent portions or apertures in a preferably coloured light-reflecting layer on the grooved side of the cover. Thus, with a groove cross-section as indicated in Fig. 4, light is critically reflected from the surfaces of the triangularly-shaped groove bottom where water is absent but will be transmitted in the waterfilled part to be reflected from the surface of the gasket 18 which is preferably of a contrasting colour to that of the cover. The demarcation line between the " coloured " water-column and the silvery band of unfilled groove is easily read off on the scale. The shape of the groove may be other than circular and may vary in crosssection to give an altered scale. A base-plate 19 holds gasket 18 against the cover 10. The device may be provided with a strap to be worn on the wrist of a diver.
Patent GB-588590-A (GB)
Title: The preparation of articles consisting essentially of a polymer of tetrafluoroethylene
IPC: B29C67/24
Filed: 1945-03-01
Abstract: Articles, e.g. sheets, of tetrafluoroethylene polymers and copolymers are made by forming a slurry of the finely-divided polymer in a liquid which wets the polymer and is readily vaporizable at atmospheric or reduced pressure at 327 DEG  C., sedimenting the polymer therefrom in a layer, removing the supernatant liquid, e.g. by filtration under reduced pressure, allowing to stand until free from volatile liquid, e.g. by circulating warm air over it, and sintering at a temperature above 327 DEG  C.  The baked article may be quenched, e.g. in water, to improve its transparency.  Non - porous articles are obtained by pressing the sediment at 50 to 10,000 pounds per square inch after removing the supernatant liquid. Suitable liquids are methyl and ethyl alcohols, acetone, acetic acid, ethyl acetate, hexane, tetrachloroethylene, ethyl ether, pinene, triethanolamine, dibutyl phthalate and mixtures of ethyl alcohol and water or ethyl acetate and hexane.  Wetting agents such as sodium sulphosuccinate may be used with water.  The process may be made continuous.  The product may be moulded, drawn, pressed, hammered or machined by sawing, drilling, punching, shaping, milling or grinding. Copolymers of tetrafluoroethylene with ethylene or isobutylene are described.
Patent GB-745658-A (GB)
Title: Pneumatic governor
IPC: F02K3/00
Filed: 1952-03-03
Abstract: 745,658. Gas turbine plant. GARRETT CORPORATION. March 3, 1952 [March 13, 1951], No. 5123/53. Divided out of 745,634. Drawings to Specification. Class 110(3) [Also in Group XXIX] The subject-matter of this Specification is identical with that described in Specification 745,634 but the claims differ.
Patent GB-177006-A (GB)
Title: Improvements in the manufacture of vehicle tyres of rubber
IPC: B29D30/02
Filed: 1921-02-15
Abstract: 177,006. St. Helens Cable & Rubber Co., Ltd., and Gray, F. J. S. Feb. 15, 1921. Moulding wheel tyres.-Solid band tyres are manufactured in moulds in which the material is compressed laterally and radially inwards simultaneously. The mould comprises an annular flanged ring 1 to support the rubber material, side rings 4, 5, and an outer tread ring 6 formed of a number of separate sections. The latter have wedge-shaped flanges 7 which co-operate with grooves 8 in the side rings, so that on pressing these rings inwards the tread ring 6 is forced radially inwards. The Provisional Specification states that engagement of the side rings by the tread sections may be effected by pin-and-slot connections.
Patent GB-1158355-A (GB)
Title: Process for the Manufacture of Amorphous Copolymers from Ethylene and Higher alpha-Olefins in Suspension.
IPC: C08F210/00
Filed: 1968-02-01
Abstract: 1,158,355. Copolymerizing olefins. FARBWERKE HOECHST A.G. 1 Feb., 1968 [1 Feb., 1967], No. 5154/68. Heading C3P. Copolymerizing ethylene, an alpha-olefin of the formula R-CH=CH 2  where R is an aliphatic, branched or straight-chain hydrocarbon radical of less than 7 carbon atoms, and optionally a non-conjugated diene in an amount such that the formed terpolymer has an iodine number of at most 50, under a pressure of 1 to 30 atmospheres, a temperature in range of -30‹ to +50‹ C., in presence of a halohydrocarbon as dispersing medium in which the copolymer is insoluble, a catalyst comprising a vanadium compound and an organoaluminium compound, soluble in the dispersing medium, and an inert inorganic solid of particle size 0À005 Á to 100 Á which is present in an amount of 0À0001 to 10% by weight of the medium. The copolymerizable mix is stirred, or mechanically agitated. Specified alpha-olefins are propylene, butene-1, isobutene, pentene-1, hexene, and 4-methylpentene-1. Non-conjugated dienes mentioned are 1,4-cis and trans-hexadiene, 5-(2<SP>1</SP> and/or 3<SP>1</SP>- methyl - 2<SP>1</SP>- butenyl) - norbornene - 2, 5 - methylene - norbornene - 2, 5 - ethylidene - norbornene - 2, and dicyclopentadiene. The inert solid may be NaCI, KCI, NaF, CaF 2 , KF.BF 3 , 2KF.SiF 4 , K 2 SO 4 , Na 2 SO 4 , CaSO 4 , BaSO 4 , NaNO 3 , KNO 3 , CaCO 3 , MgCO 3 , Na 2 CO 3 , K 2 CO 3 , ZnCO 3 , Na 2 B 4 O 7 , glauberite, phosphorite, apatite, hydroxyl-apatite, talcum, silica, kaolinite, feldspar, alkali metal zeolite, spinel, zinc spinel, oligoklas, and compounds of elements in Groups I and II of the Periodic Table. Suitable dispersing media are 1,2-dichloropropane, ethyl chloride, 1,2-dichloroethane, and methylene chloride. The copolymer is recovered from the polymerization mix in the form of beads, and any inert inorganic material present therein readily removed by washing. Terpolymers may be sulphur vulcanized.
Patent GB-236855-A (GB)
Title: Improvements in and relating to paper feeding machines
IPC: B65H3/08
Filed: 1925-02-25
Abstract: 236,855. Aktiebolaget Dux. Aug. 14, 1924, [Convention date]. Sheet-separators.-Sheets are fed from a pile by suction devices 2, a number of which are connected to a suction tube 6 which is given combined vertical and horizontal motions, or motions in two other directions inclined to one another, and also a rocking motion which causes the suction devices 2 to move to the inclined position shown in Fig. 2 after engaging the sheet squarely in descending from the position 4. Fig. 3, to the position 3. The front edge of the top sheet is thus bent and air can pass between it and the next sheet to prevent double feed. The tube 6 is fixed at each end to lever arms 7, 8 of which the arms 7 are the longer. The arms 7 are pivoted to links 9 by means of which the suction devices 2 are moved from the position 3 to position 4, thence to position 5 and back again. The arms 8 are each fitted with a freely mounted sleeve. 18 which can slide on a rod 19 which is oscillated from the horizontal position shown in Fig. 3, to the inclined position shown in Fig. 2, by means of cam-and-link mechanism 21, 23, 25, in order to tilt the suckers 2 as shown in Fig. 3 after they have engaged the top sheet. The links 9 are pivoted to a rod 10 which is movable in guides 12, and is raised when cams 17 act on rollers 14 on the links 9. During this rising movement, the rod 19 is returned to horizontal position so that the suckers 2 assume the horizontal position by the time they reach position 4. The links 9 are now oscillated about their pivots by cams 26 acting on rollers 27 on the links 9, and when position 5 is reached the sheets are taken over by sheet-forwarders. The axis of the pivotal connection of the links 9 and arms 7 coincide with the line joining the left ends of the suckers 2.
Patent GB-1085526-A (GB)
Title: Improvements relating to controlled transformers
Inventor: HUTCHINS ROY
IPC: H01F29/14
Filed: 1964-02-07
Abstract: 1,085,526. Transformers. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb. 5, 1965 [Feb. 7, 1964], No. 5277/64. Heading H1T. [Also in Division H3] The output of a transformer secondary winding S is varied by means of a control winding K which when energized produces saturation in a shunt limb or limbs LN, MO to ensure maximum coupling between primary winding P and S and when de-energized or short-circuited allows the primary flux to by-pass the secondary S. The cross-sectional areas of at least the yoke parts LM, NO may be twice that of control limb EF and four times those of shunt limbs LN, MO. In another arrangement (Fig. 4, not shown), only one shunt limb is provided. The control current may be D.C., A.C. or pulsed in synchronism with the primary current.
Patent GB-970992-A (GB)
Title: A process for the extraction of lithium from its ore
IPC: C22B26/12
Filed: 1961-02-13
Abstract: Lithium values are recovered from lithium ore, particularly lepidolite, by treating the ore with 65 to 75% sulphuric acid at 140 DEG  to 200 DEG  C. in amounts calculated as 100% acid, from 55 parts or 100 parts of acid to 100 parts of ore, adding alkali metal, or alkaline earth metal carbonate, e.g. calcium carbonate, until the pH is from 3.5 to 4.5, to precipitate alumina which is filtered off, together with the insoluble gangue material.  The filtrate, lithium sulphate may be treated with milk of lime to precipitate the heavy metals, excess lime eliminated by adding sodium carbonate, and finally, after filtration and concentration of the resultant filtrate to a lithium content of 17 grams per litre, the lithium carbonate is precipitated by adding alkali metal carbonate.
Patent GB-548872-A (GB)
Title: Door-operating mechanism for the doors of dump vehicles
IPC: B60P1/00
Filed: 1941-04-24
Abstract: 548,872. Door-operating appliances. EUCLID ROAD MACHINERY CO. April 24, 1941, No. 5319. Convention date, April 24, 1940. [Class 65 (i)] The dump doors of a vehicle are closed by cables 13 running over sheaves 19 carried by the end of a lever 21 pivoted at 22 and adapted to be rocked by the piston 29 of a fluid pressure motor 27 pivoted at 28 on the vehicle. During the closing movement, the piston acts with increasing advantage on the lever. The doors open by gravity when a weighted pawl 33 is disengaged from a rack 32 on the lever by a servomotor 42 coupled to a lever 35 on which the pawl is pivoted at 34. A manual valve admits pressure fluid alternately to the motors 27 and 42.
Patent GB-539044-A (GB)
Title: Improvements relating to air-tight packages and method of forming same
IPC: B65D5/60
Filed: 1940-03-26
Abstract: 539,044. Packaging; lining boxes. WINGFOOT CORPORATION. March 26, 1940, No. 5444. Convention date, July 27, 1939. [Classes 18 and 94 (i)] Relates to a method of forming an air-tight and moisture-proof package for process cheese, edible fats, frozen foods, and the like. According to the invention, an open-ended bag is formed from a film of rubber hydrochloride and spread out to conform to the interior of a box and to project above the upper edge of the box, the bag is filled to the height of the upper edge of the box, and the open end of the bag is then sealed. The bag is preferably flat but may have pleated sides or a square bottom. The bag a is opened and blocked into a square-bottomed bag by any suitable means, such as two blocks 1, hinged at 2 to a base and tiltable to and from one another by a rod 3 operating a toggle joint 4. 4. The bag is placed over and smoothed down around the blocks, and a box is fitted over the bag which then serves as a lining. The blocks are then tilted towards one another to allow the lined box to be removed. Any other suitable means for lining the box with rubber hydrochloride film may be used. The lined box is filled by running in hot cheese, for example, and after filling, the upstanding edges of the lining are pressed down on to the cheese or other contents and sealed by heat and pressure. Specification 437,304, [Group V], is referred to.
Patent GB-678369-A (GB)
Title: Improvements in and relating to automatic signalling or control systems
IPC: G06M1/10
Filed: 1949-03-01
Abstract: 678,369. Track actuated railway signalling apparatus. STERN, W. L. Feb. 24, 1950. [March 1, 1949] No. 5500/49. Class 105. [Also in Group XL (b)] The movement of a vehicle e.g. a train along a prescribed route is detected by a beam of radioactivity which the vehicle interrupts or which is transmitted by a fixed receiver from the train or received by a receiver on the train. As shown, a radiation beam passing from a radio active source 2 to an ionization chamber 1 at opposite sides of a railway track is intercepted by a lead plate 18 carried on a railway carriage 17. The output of the chamber is amplified and used to energise an anode relay 12 to operate an alarm 14. The source may be carried on the carriage and the detector situated beside the track or the detector may be mounted on the carriage. The detector may be made selectively responsive either to γ or # radiation. For example, a train carrying a lead plate may cut off y radiation from the receiver to initiate a particular signal while a train not provided with this shield may cut out only # radiation to initiate a different operation. The detector may be a Geiger Muller tube an electrometer or a naphthalene crystal fluorescing under the action of the radiation to affect a photo-cell. The amplifier may comprise a cold cathode tube.
Patent GB-592272-A (GB)
Title: Improvements in or relating to vehicle windshields and mountings therefor
IPC: B60J1/04
Filed: 1945-03-06
Abstract: 592,272. Windscreens. WILLYS-OVERLAND MOTORS, Inc. March 6, 1945, No. 5587. Convention date, Jan. 24, 1944. [Class 20 (iii)] A vehicle windshield comprising a tubular frame is pivotally attached by a bolt 66 to the upper flattened end 30 of a reinforced curved bracket 17, this bracket in turn being attached to the cowl 15 of the vehicle by means of a bolt 20 passing through its other flattened end 19 and a bolt 27 passing through a reinforcing sleeve 25, both bolts passing through a reinforcing plate 21 under the cowl. A thumb screw 76 passes through aligned holes in two brackets 72, 74 secured to the windshield and the bracket 17 respectively so that when the thumbscrew is screwed home the shield is held in its normal upright position and when released the shield can be forwardly opened. A strip of flexible material 55 closes the gap between the shield and the cowl. A chain is attached to the thumbscrew to prevent its being lost.
Patent GB-1534676-A (GB)
Title: Process and apparatus for the production of laminated sheets
IPC: B32B7/14
Filed: 1977-02-10
Abstract: 1534676 Laminates W SCHNEIDER & CO 10 Feb 1977 [24 Feb 1976] 5596/77 Heading B5N In a method of making a sandwich structure, a sheet core of thermally and acoustically insulating material is coated on each face with linear deposits of a melt adhesive having a melting point below the softening point of the core, applying covering sheets to the core, heating the assembly to the melting point of the adhesive, pressing the assembly and cooling the assembly during the pressing. An apparatus for use in the method comprises an endless driven conveyer belt 1 to transport the core material 4, a heatable container 5 for the adhesive provided with nozzles 6, a conveyer device having thermally resistant cables 11 passing between two heating elements 13, 14 and, downstream of the elements a press 15 having two flat water-cooled pressure plates 16, 17, the plates having resiliently mounted therein, clamping bars 18 and 19. The core may consist of expanded plastics granulate, foamed polyurethane or corrugated cardboard.
Patent GB-136403-A (GB)
Title: Improvements in or connected with Turning Devices for Motor Road Vehicles.
Inventor: ENGLAND OWEN
IPC: B60S9/14
Filed: 1919-03-07
Abstract: 136,403. England, O. March 7, 1919. Jacks, screw. A motor vehicle carries a central turntable by means of which it may be lifted bodily from the ground and turned through any angle, power from the engine being utilized to perform these operations. The centre of the base or foot P is screwed internally to receive the screw M; or an intermediate cylindrical member N, screwed internally and externally, may be interposed. The screw M is rotated in either direction by means of a bevel-wheel E, which is secured to its upper end and is engaged by either of the bevel pinions C, D, carried by a sleeve B, splined or keyed to a shaft driven by the engine. The screwed members M, N, P are prevented from screwing out of one another by collars which also form stops, so that, when the gear is fully extended, further rotations of the screw M turn the vehicle. When the vehicle has been lowered until it rests on the ground, a projection R on the foot is caught by a stop T on the vehicle, so that the foot cannot turn, but further rotation of the screw M will then cause the foot to be raised well clear of the ground.