baber/WOPTO huggingface dataset:
Patent GB-1464001-A (GB)
Title: Data display panels
IPC: G09F9/37
Filed: 1974-02-25
Abstract: 1464001 Matrix displays C C BUCHERT 25 Feb 1974 [7 March 1973 5 Feb 1974] 8355/74 Heading G5C A display panel module comprises a plurality of light guides 14 with contiguous display surfaces 15 and shutters 7 for controlling the illumination of the input ends 16 of the guides. The shutters are of ferroelectric material mounted on flexible members and moved by electromagnets 8 optionally against the field of a permanent magnet. The sides of the guides may be reflective; the module includes condensers 13. In other embodiments each shutter comprises a ball, a hemispherical cap, a mass of iron filings or a drop of magnetic liquid or a pivoted vane. Vanes may be controlled by air pulses and electromagnets, alternatively a constant air pressure maintains the vane in one position and it falls to the other position when the air supply is stopped. A forward extending grating (29), Fig. 10 (not shown), may surround each display surface 15 to prevent blurring.
Patent GB-695829-A (GB)
Title: Improvements in the flyers of roving and similar flyer frames
Inventor: SMITH GEORGE
IPC: D01H7/48
Filed: 1951-04-11
Abstract: 695,829. Flyers. ENGLISH SEWING COTTON CO., Ltd. April 9, 1952 [Aprif 11, 1951], No. 8358/51. Class 120(ii) A roving or similar frame flyer is provided with a series of grooves c formed around the rounded upper edge of the vertical passage b through the boss B, the grooves being so arranged that if extended they would meet the central axis of the passage.
Patent GB-1090935-A (GB)
Title: Improvements in and relating to methods of manufacturing indirectly heated cathodes and cathodes manufactured by said methods
IPC: H01J1/24
Filed: 1966-02-25
Abstract: 1,090,935. Thermionic cathode constructions. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Feb. 25, 1966 [March 2, 1965], No. 8403/66. Heading H1D. In a method of making an indirectly heated cathode which has the space between the filament wire 2 and the support 1 for the emissive layer 5 filled out with a porous, insulating, ceramic mass, a ceramic suspension containing gas developing constituents is applied as a thin coating to the filament wire 2 and/or the inner surface of the cathode support 1, the filament is then inserted inside the support and the ceramic suspension caused to foam and expand to fill the intervening space, after which the foam 4 is sintered and degassed. In an example, the suspension was composed of 15 gm. of aluminium powder, 100 gm. of silica (av. particle size 20Á), 650 gm. of aluminium metaphosphate, 100 gm. of bentonite, 3000 gm. of aluminium hydroxide which were mixed together in the dry state and then suspended in 3100 gm. of orthophosphoric acid. The foam was heated in air at 150‹ C. for two hours before being sintered and degassed. The emissive layer may be barium-strontium carbonate.
Patent GB-446997-A (GB)
Title: A process for the manufacture of edible oils and edible fats
IPC: C11B1/06
Filed: 1935-03-18
Abstract: A process for obtaining purified oils from whale or seal blubber or bones on floating factories, consists in heating the preferably comminuted raw material to about 70 DEG  C. in an oil bath and subjecting the oil obtained immediately to a refining process. The residue of cracklings obtained in the heat treatment yields a further amount of oil by pressing, and the residue is then heated in a water bath at 70 DEG  C.  The supernatant layer of oil thus formed is combined with the oil obtained is previous stages; the aqueous layer is centrifuged and worked up to yield the glue and gelatin contained therein, and the solid residue is dried and used as a food for animals.  The oil is treated immediately after recovery with a small amount of caustic soda solution which removes the fatty acids, albumen decomposition products and mucins.  The oil is then dried and treated with superheated steam in vacuo.  Specification 420,040, [Group XIII], is referred to.
Patent GB-1130487-A (GB)
Title: Alkylene diphosphines
IPC: C10L1/26
Filed: 1966-02-25
Abstract: 1,130,487. Primary alkylene diphosphines. MONSANTO CO. 25 Feb., 1966 [26 Feb., 1965], No. 8461/66. Heading C2C. [Also in Division C5] Primary alkylene diphosphines, some of which are novel, of the general formula where R is a straight or branched chain alkylene group of 1 to 4 carbon atoms, are prepared by reacting an alkylene diphosphonic ester of the formula where R<SP>1</SP> is alkyl, cycloalkyl, aryl or aralkyl, with an alkali metal aluminium hydride, preferably in a liquid medium. The preferred method comprises adding the alkylene diphosphate slowly to a solution or suspension of the metal aluminium hydride in a suitable solvent, especially an ether. The novel products are those wherein R contains 1 to 3 carbon atoms. The diphosphines are useful as complexing agents, scavengers, additives for fuels, and reactive intermediates.
Patent GB-777166-A (GB)
Title: Improvements in or relating to mining machines
IPC: E21C31/02
Filed: 1955-03-24
Abstract: 777,166. Excavating earth and rock. MASCHINENFABRIK KORFMANN GES. March 24, 1955 [March 24, 1954], No. 8589/55. Class 68 (1). [Also in Group XXIX] A longwall mining machine is hauled along a wall by a rope or chain 6 being fixed to the end of the wall and engaging a rope drum or chain wheel 5 which is rotated by a hydraulic motor (see Group XXIX) mounted in the machine. In one embodiment the motor comprises two cylinders 10 which oscillate about pivots 13 and have pistons 10a the connecting rods of which are connected to a crank-shaft 12 which is coupled to the chain wheel 5 through spur and bevel gearing. The pistons, which are double acting, are supplied with pressure fluid from a pump 21 driven from the main power installation in the machine. A second pump 24 may also supply pressure fluid in order to move the machine more rapidly during an empty journey. Valves 29, 35 are manually operated to reverse the direction of rotation of the motor. In another embodiment the hydraulic motor has three cylinders. _____
Patent GB-396000-A (GB)
Title: Improvements in and relating to surgical needles
IPC: A61B17/06
Filed: 1933-03-22
Abstract: 396,000. Sewing-needles. GRUSS, F. J. and GRUSS, F. K., 450, Sutter Street, San Francisco, U.S.A. March 22, 1933, No. 8649. [Class 112.] A rethreadable surgical needle has an eye 5 communicating with a slot 2 with inturned shoulders 3 at the exit. The suture is threaded through the eye 5, pressed into the slot 2 and pulled to cause the sides to be nipped by the shoulders 3 and expand the part in the slot to form a head. Double thread may be used as shown in Fig. 6.
Patent GB-331185-A (GB)
Title: Improvements in the manufacture and production of aldehydes from 1.2-oxides of hydrocarbons
IPC: C07C45/58
Filed: 1929-03-18
Abstract: 331,185. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). March 18, 1929. Aldehydes; ketones; alcohols.-Aldehydes are obtained by passing alpha-oxides at elevated temperatures over catalysts comprising oxyacids of elements of the 5th or 6th group of the periodic system or anhydrides or salts of such acids, excluding such compounds as are unstable or are volatilized under the conditions of working. Phosphates and sulphates in particular are mentioned as suitable. Mixtures of these, catalysts with one another or with oxides, hydroxides, or carbonates may be employed; in cases where oxides, hydroxides, or carbonates have been added the mixtures may be subjected to a reduction with hydrogen before use. The catalysts may be deposited on carriers, or intimately mixed with inert materials such as clay, kieselguhr, pumice meal, graphite meal, or glass powder. The reaction may be carried out at ordinary, reduced, or moderate increased pressure, and temperatures of 150‹ to 450‹ C. are suitable. Inert gases or water vapours may be mixed with the vaporized alpha-oxides, for example, carbon dioxide or nitrogen may be continuously or intermittently added to prevent overheating of the catalysts. In addition to aldehydes, ketones and unsaturated alcohols are formed in the reaction. According to examples (1) propionaldehyde, allyl alcohol, and some acetone are obtained by passing 1 : 2-propylene oxide vapour over magnesium pyrophosphate mixed with kieselguhr at 260‹ C.; (2) propionaldehyde is obtained by passing 1 : 2-propylene oxide vapour over a catalyst formed by heating cerous sulphate to 300‹ C., making it into a paste with a solution of barium hydroxide, moulding, and drying; (3) a commercial butylene oxide, consisting mainly of the 2 : 3-oxide, is passed at 250‹ C. over the catalyst used in (2) above, n-butyraldehyde, isobutyraldehyde, methylethylketone, and butenols being produced; (4) a commercial butylene oxide, consisting mainly of the 1 : 2-oxide, is treated as in (3) above, butyraldehyde, methyethylketone and butenols being produced; (5) a mixture of copper carbonate and magnesium ammonium phosphate is heated to 350‹ C. to drive off ammonia, and the mass is ground, sieved, made into a paste with water, and moulded; the pieces are dried and then heated in a slow current of hydrogen at 180-200‹ C. ; ethylene oxide is passed over this catalyst at 180-200‹ C., yielding acetaldehyde.
Patent GB-1000369-A (GB)
Title: Lightning arrester
IPC: H01T1/08
Filed: 1963-03-05
Abstract: 1,000,369. Lightning arresters. F. SEDMARK. March 5, 1963 [March 5, 1962], No. 8709/63. Heading H2H. A lightning arrester comprises non-linear resistor blocks 3 in series with two spark-gaps formed by electrodes 6, 7 and 10, 11, the circuit from the line connection cap 2 to the earth terminal 23 being completed by spring 4, plate 12, metal tube 26 and a plate 18 secured to the porcelain tube 1 by sealing 22. The chambers 13, 14, 17 are normally closed by a spring-controlled valve 20 and remain so during arrester operation at voltages up to a certain level. However when this level is exceeded the pressure produced by arcing in chambers 13, 14 opens the valve 20 and the gases escape through channels 15, 16, 19, thereby extinguishing the arc between electrodes 10, 11. Fig. 2 shows a modification in which there are several spark-gaps formed by pairs of opposed metal discs 27, 28 and insulating spacers 29, the discs being so shaped and apertured that the gases flow between the spaces 32, 33 through the sparkgaps, Figs. 3 and 4 (not shown). Also the bottom electrode 34 of the spark gap assembly is mounted on the stem of valve 20 to which is connected the earth terminal 23, so that when the valve 20 opens the lowest spark-gap lengthens, thereby assisting arc extinction.
Patent GB-541802-A (GB)
Title: Improvements in lathes
IPC: B23Q5/22
Filed: 1940-02-23
Abstract: 541,802. Lathes. HEPBURN, J. T. Feb. 23, 1940, No. 8725/41. Divided out of 541,777. [Class 83 (iii)] A lathe having a longitudinally moving saddle 36 provided with a tool carrying cross slide 37 has the feed of the tools to the work controlled by the inclined surface of a wedge 47 mounted on the cross slide engaging and riding on the surface of a fixed wedge 48 so as to prevent too sudden engagement of the tools with the work. The initial position of engagement of the wedges is shown in Fig. 2. The cross-slide is fed by a pneumatic cylinder 44. Specifications 541,800 and 541,801 are referred to.
Patent GB-717665-A (GB)
Title: Improvements in or relating to straight bar knitting machines
Inventor: WICKARDT KURT WILLI
IPC: D04B15/64
Filed: 1950-04-11
Abstract: 717,665. Knitting-machines. THIEDE, W. O. April 9, 1951 [April 11, 1950], No. 8798/50. Class 74 (2). A rack 42, reciprocating with the slurcocks 29, imparts rotation, first in one direction and then in the other, to a shaft 44, journalled in a fixed housing 45 and driving, through individual friction clutches, gear rings 51, one for each thread guide rod 15. Any gear ring 51 may be made to drive its thread guide 15 by cams .71, on a drum 64, racked round as required from the main cam shaft of the machine, the appropriate cam lowering a gear 48, coupled to that ring 51 through an idler gear 47, into engagement with a rack 21 on the rod. When either of two abutments on a thread guide rod 15 encounters a stop, the friction clutch concerned slips. Each clutch comprises two plates, one on each side of the gear ring 51 and bearing on a pivot 53, levers 54, urged by a spring 55 into frictional engagement with the ring 51. The slurcocks are driven by a helical groove on a cam drum.
Patent GB-450363-A (GB)
Title: Improvements in or relating to an accessory for stringed musical instruments
IPC: G10D3/04
Filed: 1935-03-21
Abstract: 450,363. Stringed musical instruments. TERTIS, L., Smalldown, Belmont, Sutton, Surrey. March 21, 1935, Nos. 8857 and 26440. [Class 88 (ii)] A device for preventing cutting of the bridge andproduction of a twanging effect when metal strings are used, consists of a rubber tube 10 or channel through which the string 12 is passed, in combination with a rubber disc 11 secured underneath. The device is made bv threading a fine rubber tube on a wire, cementing a strip to the under surface of the tube and clamping in a channelled press, after which discs are stamped out by a punch. In Fig. 8, the disc is stamped from a strip of rubber reinforced by textile or other flexible material 22, the string 12 being passed through the disc above the textile layer.
Patent GB-1100663-A (GB)
Title: A brushless a.c. dynamo electric machine
IPC: H02K19/12
Filed: 1964-03-03
Abstract: 1,100,663. A.C. dynamo-electric machines. ELECTRO DYNAMIC CONSTRUCTION CO. Ltd., and C. ST. J. LAMB. 1 March, 1965 [3 March, 1964], No. 8915/64. Heading H2A. A brushless A.C. dynamo-electric machine, not shown, e.g. motor, includes a field-winding supply arrangement comprising two separate alternators whose stator windings P 1 , P 2  are connected in mutually reverse phase to A.C. supply terminals RYB and whose rotor windings S 1 , S 2  are connected through serially arranged rectifier, e.g. silicon networks R 1  . . . R 6  to terminals of the machine field winding MF, the rotor windings and networks being mounted to rotate with the machine shaft. The alternators are of construction similar to a conventional wound-rotor induction motor, and the arrangement seeks to provide constant. full rotor field flux in a synchronous motor at all speeds in either direction of rotation, particularly near standstill conditions.
Patent GB-778930-A (GB)
Title: Improvements in and relating to electric storage cells
IPC: H01M50/414
Filed: 1955-03-28
Abstract: 778,930. Batteries. SVENSKA ACKUMULATOR AKTIEBOLAGET JUNGNER. March 28, 1955 [Aug. 19, 1954], No. 9021./55. Class 53. In a totally sealed accumulator with or without a safety valve, the gas evolved during charging is absorbed by the active material and, to prevent the gas thus evolved from floating up into the gas space, the inter-electrode space is filled with a viscous mass. The amount of the latter relative to the distance between the electrodes is such that the gas bubbles can bridge the distance between the electrodes without rising to the surface of the said mass. The viscous mass is a mixture of the electrolyte with a non-conductive finely divided material, e.g. aluminium oxide, infusorial earth, polyvinyl chloride or the like. In some cases, the positive electrodes are poisoned by the said viscous mass and, to counteract this poisoning, the active material is impregnated with lithium hydroxide prior to the introduction of the electrode into the cell. Alternatively, the lithium hydroxide may be introduced in the electrolyte before the introduction of the electrodes in the cell.
Patent GB-269518-A (GB)
Title: Process for the manufacture of magnesia cements
IPC: C04B28/32
Filed: 1927-04-02
Abstract: 269,518. Soc. le Xylium. April 16, 1926, [Convention date]. Plastic compositions containing oxychlorides.- Magnesia cements are rendered impervious to moisture by the addition of an insoluble complex soap, e.g. a lead soap, and of a dispersing agent, e.g. casein, to maintain the waterproof substance in its colloidal condition until the composition has set. According to an example, 2-4 parts of an ammonium soap and casein and 4-6 parts of lead acetate are added to 30-35 parts of magnesia, 15-20 parts of sawdust, and 2-6 parts of loading substances (plaster, lime, silicia, &c.), and 30-40 parts of magnesium chloride are then added. The Specification, as open to inspection under Sect. 91 (3) (a) describes also the use of waterproof colloids other than insoluble soaps. This subject-matter does not appear in the Specification as accepted.
Patent GB-810637-A (GB)
Title: Improvements in or relating to wheeled vehicles
IPC: B62D53/02
Filed: 1957-03-20
Abstract: 810,637. Vehicle wheel arrangements. GENERAL MOTORS CORPORATION. March 20, 1957 [April 11, 1956], No. 9139/57. Class 108(2) A wheeled two-part vehicle, the parts of which are pivotally interconnected so that one part tends to tilt in one direction about its single pair of wheels, has connected thereto a dolly 42 with associated mechanism which is operable by a tilting of said one part to force the dolly against the ground and effect a redistribution of the load between pairs of wheels. As shown, the invention is applied to a scraper vehicle comprising a tractor 2 having a single pair of wheels 6 and connected to a trailer 18 having a scraper bowl extending forwardly of a single pair of wheels 20. The tractor and trailer are interconnected by a drawbar 8 having a pair of rearwardly extending arms 10 pivoted at 14 to the trailer 18. The drawbar 8 has a yoke-like part which is pivotally connected to the tractor 2 on a normally vertical axis 12. A transverse cutter blade 22 at the front end of the scraper bowl can be brought into and out of engagement with the ground by means of a piston-cylinder assembly 24 pivoted at 26 to the drawbar 8. The piston 40 of this assembly 24 is connected to the mid-poimit of a lever 28 which is pivotally connected to the drawbar 8 and at the opposite end to a lift rod 32 pivoted at 34 to the trailer 18. The dolly 42 comprises a dual wheel assembly 44 dirigibly connected to a king- pin structure 46 which is rigidly secured to a U-shaped member 48 whose arms 52 are pivotally connected at 50 to brackets 54 on the tractor 2. Rocking of the dolly about these brackets 54 is controlled by a pistoncylinder assembly 58 whose cylinder 60 is pivotally connected to a structure 56 rigidly attached to the tractor 2. In order to reduce the tractor axle loading when moving the vehicle from one site to another the cylinders of the assemblies 24 and 60 are interconnected by a hydraulic line 68, and additional liquid is pumped into the cylinder of the assembly 24 until the blade 22 has adequate clearance for road travel. By absorbing part of the forces tending to tilt the trailer 18, the dolly 42 reduces the tractor axle loading. A formula is given for calculating the area of the cylinder 60 to give a required reduction in tractor wheel loading. Use of the dolly 42 increases the trailer wheel loading but this can be reduced by attaching a similar dolly to the trailer.
Patent GB-257523-A (GB)
Title: Improvements in or relating to screw rolling machines
IPC: B21H3/06
Filed: 1926-04-07
Abstract: 257,523. Schrauben-und Schmiedewaarenfabriks Akt.-Ges. Brevillier & Co. und A. Urban & S÷hne. Jan. 18, 1926, [Convention date]. Bolts and screws. - In a machine, for rolling screw-threads by reciprocating platens 1, 2 provided with cutters 10, 11 between the platens which turn off the excess metal squeezed from the threads formed on the blank, the cutters are adjustably secured in slides 7, 8 reciprocated to and from the blank by rack and pinion 14 which is oscillated by a segment 19 rocked by a cam 20 on the reciprocating slide 31 of one of the platens. Ribs 41, 42 are adjustably secured on the platens to guide the cutters. To point the screw a separate cutter may be used or a pointing edge 18 is formed on the cutter which is also moved axially in a vertical slide relative to the screw by a cam 22 on the slide 31 acting against a spring 33. When the thread is finished the rolling-dies still continue their movement but the cutters are forced apart by springs so that the finished screw is released and drops from the machine.
Patent GB-1067636-A (GB)
Title: Improvements in couplings for coupling tractors to trailers
IPC: B60T17/04
Filed: 1966-03-03
Abstract: 1,067,636. Tractor/trailer couplings. W. BUSCH, and H. FRIEDERICHS, [trading as BERGISCHE STAHL-INDUSTRIE]. March 3, 1966 [March 24, 1965], No. 9361/66. Heading B7T. A coupling between a tractor and trailer comprises a king-pin 12 fixed to the trailer frame 11  by a lock-nut 13 and adapted to engage a latch on the tractor, said king-pin having an extension 15 on which is rotatably mounted a member 17 carrying connectors 19 and 20 of the braking and lighting system of the trailer which automatically connect with corresponding connectors (19A) and (20A), Fig. 2 (not shown), mounted on a member (22) rigidly'fixed to the tractor. The member 17 is resiliently connected to the extension 15 by means of a rubber sleeve 18. Centring bosses 21 on member 17 engage recesses (23) on member (22).
Patent GB-841229-A (GB)
Title: Improvements relating to composite yarns and fabrics made from them
IPC: D02G1/18
Filed: 1958-03-24
Abstract: 841,229. Yarns and threads; woven fabrics. DU PONT DE NEMOURS & CO., E. I. March 24, 1958 [March 27, 1957 (3), Aug. 12, 1957], No. 9381/58. Drawings to Specification. Classes 120(3) and 142(4). A yarn consists of fibres that are spontaneously and irreversibly extensible associated with fibres of less extensibility or which shrink when subjected to the conditions under which spontaneous extension occurs to the extensible fibres. The yarn may be prepared by plying yarns together or by simultaneously spinning filaments possessing different properties. The finished yarn may display a bulky, crimped effect. Polyethylene terephthalate and cellulose acetate are mentioned as fibres that may be rendered extensible, and shrinkable fibres employed may by nylon, viscose rayon or polyacrylonitrile. In one example, a polyethylene terephthalate yarn having a spun denier of 60 is attenuated with a draw ratio of 2À385. This yarn is then passed through a steam oven at 100‹C. in which it shrinks by 47 %. In this condition, the yarn is spontaneously extensible on heating and is plied with a commercial polyethylene terephthalate filament yarn capable of shrinking 12% upon immersion in water at 100‹C. for five minutes. The plied yarn, when immersed at this temperature, takes up a bulky appearance and handle. Extensible yarns produced in similar manner to the first example may be plied with nylon yarns for which a shrinkage is given of 10% upon immersion in water at 100‹C. for five minutes. Another example described employs polyethylene terephthalate spun from a divided pack through a spinneret having 11 round orifices and 27 Y-shaped orifices. This combination of filaments is then attenuated with a draw ratio of 2À456 and passed through a hollow needle leading into a nozzle on the entrance side of which air is maintained at 220‹C. and 5 p.s.i. pressure. This treatment results in a shrinkage of 49À6%, and the composite yarn so formed exhibits bulkiness after immersion in water at 100‹C. A method of rendering cellulose acetate yarns spontaneously extensible is also described. Specification 841,230 is referred to.