baber/WOPTO huggingface dataset:
Patent GB-1456068-A (GB)
Title: Rotary electric machine
IPC: H02K3/24
Filed: 1974-08-16
Abstract: 1456068 Cooling electrical machines GANZ VILLAMOSSAGI MUVEK 16 Aug 1974 [22 Aug 1973] 36213/74 Heading H2A In an electrical machine having conductors 8, 9 arranged in coil slots 2 in a cylindrical rotor 1, an extension region 3 without conductors is formed below each of the coil slots, and cooling channels 14, 15 lying in planes having their normals perpendicular to the rotor axis are formed in or between the conductors, adjacent channels being connected to each other, and the channel nearest to the rotor axis being connected to the region 3 and the channel farthest from the axis being connected to axially displaced inlet and outlet ports 12, 13 leading to the air gap surface of the rotor. In the arrangement shown, the channels 14, 15 are disposed on tangential axes perpendicular to the rotor axis, and an ambient gas such as hydrogen which enters the rotor through ports 12 circulates via radial chambers 10, 11 formed in insulating slot liners 7. The ambient gas is also able to enter the rotor at inlet ports (not illustrated) at the ends of the rotor, this gas flowing into the extension regions 3 and then entering the cooling channels via a radial channel 16 passing at least through an insulator 6. In the arrangement of Figs. 3, 4 (not shown), the corresponding cooling channels (14, 15) lie on axes parallel to the rotor axis and the ambient gas circulates via further channels (16, 19) disposed radially in the rotor.
Patent GB-778247-A (GB)
Title: Improvements in or relating to the production of carbon black
IPC: C09C1/50
Filed: 1954-12-14
Abstract: Apparatus for the production of carbon black by exploding a mixture of a gaseous hydrocarbon and an oxygen-containing gas under pressure comprises a plurality of parallel tubes 4 connecting discoid chambers 10 and 19.  Discoid chamber 10 is surrounded by an annular chamber 9 and is connected thereto by orifices in a distributer ring 6. Superposed on chamber 10 is a discoid chamber 13 which is connected to tubes 4 and discoid chamber 19 by perforated tubes 16.  The tubes and connected chambers are immersed in a liquid coolant in vessel 1. In one method of operation gaseous hydrocarbon, e.g. methane is injected into the apparatus <PICT:0778247/III/1> <PICT:0778247/III/2> under pressure via a valved conduit 15 and is thereby distributed throughout discoid chamber 10, tubes 4 and discoid chamber 19. Oxygen-containing gas is injected under a higher pressure via a valved conduit 14 and mixes with the hydrocarbon via tubes 16. In another method of operation, the two gases are fed simultaneously under the same pressure.  Combustion is then initiated by a sparking plug (Fig. 1), not shown) in chamber 19, and the carbon black and residual gases discharge through a valved conduit 28 (valves not shown).  A distributer ring similar to ring 6 may be provided in chamber 13.  A plurality of conduits 14 and 15 may be spaced uniformly around chamber 13 and 10 respectively.  The sparking plug may be substituted by a continuously glowing plug.  In the modification shown in Fig. 4, discoid chamber 13 and tubes 16 are dispensed with and the hydrocarbon and oxygen-containing gas are both injected into the annular chamber 9 which may contain baffles.  In this modification, the sparking plug may be located in chamber 10.
Patent GB-922003-A (GB)
Title: Improvements in or relating to two-way communication telephone systems
Inventor: CAWTHRA WILLIAM ALEXANDER
IPC: H04M9/08
Filed: 1958-11-12
Abstract: 922,003. Two-way transmission. MODERN TELEPHONES (GREAT BRITAIN) Ltd. Nov. 12, 1959 [Nov. 12, 1958], No. 36421/58. Class 40 (4). In a two-way telephone system or repeater including at least a part having a separate path for each direction of transmission, instability due to feedback is overcome by providing frequency selective switching means, responsive to a narrow band of frequencies in signals applied to the system, for altering the gain in both paths so as to condition the system for transmission in whichever is the direction of the applied signals and filter means for removing frequencies of the switch frequency band from signals transmitted in the other direction. There is thus no possibility of feedback around the loop in the selected band of frequencies. Two transducers 10, 11, functioning both as microphones and loud-speakers, are connected to amplifying means 12 so that microphone signals from transducer 10 are fed through gain-reducing device 15, through filter 16 rejecting narrow-frequency band f, and through amplifier 17 to transducer 11. Microphone signals from transducer 10 are also fed through filter 19 accepting only narrow frequency band f, through amplifier 20 and rectifier 21 to switch control unit 22 for operating gainreducing devices 15, 23 to increase the gain of the former and reduce the gain of the latter. The arrangement is symmetrical, providing similar control for transmission from transducer 11 to transducer 10. An arrangement is also described, Fig. 2, not shown, in which different control frequencies are used for the two directions of communication and in which each station has its own amplifier 12. The stations are similar to one another but the filters are switchable to accept (or reject) either one of the two signals according as the station is a calling or called station.
Patent GB-163255-A (GB)
Title: Improved combination range
IPC: F24C15/02
Filed: 1920-12-30
Abstract: 163,255. Pate, G., and Hague, G. Dec. 30, 1920. Addition to 154,148.. Combined open fire-places and coolcing-stoves; ovens.-A sliding oven door, made in halves C, is substituted for the hinged door in the combination range described in the parent Specification.
Patent GB-369264-A (GB)
Title: Improvements in or relating to sewing machines
IPC: D05B15/00
Filed: 1930-12-04
Abstract: 369,264. Shoe inseam sewing- machines. BRITISH UNITED SHOE MACHINERY CO., Ltd., Union Works, Belgrave Road, Leicester.-(United Shoe Machinery Corporation ; 140, Federal Street, Boston, U.S.A.) Dec. 4, 1930, No. 36560. [Class 112.] Boot-sole sewing machines ; welting and turnshoes; feed by awls ; feed by needles.-A continuous or substantially continuous work-feeding movement is imparted to the work in a shoe inseam sewing-machine in part by the cooperation of a channel guide with the needle moving back and forth together in the line of feed. A yieldingly mounted back gauge moving to and fro alternately with the needle in the line of feed assists in the continuity of the work-feeding movement. The invention is described as applied to a machine for sewing an upper to a turnshoe sole and having workengaging devices comprising a curved hook needle 4, a channel-guide 52, a back gauge 76, and an awl or feed point 74 as in the machine described in Specification 115,235, [Class 112, Sewing &c.]. The needle 4 is mounted on a carrier 6 which is integral on one side with a sleeve 8, adapted to be reciprocated on a shaft 10 in the line of feed by a cam-actuated lever 22 through ball-and-socket connections, and on the other side with a shaft 12 coaxial with the shaft 10 and on which is sleeved a rotatable and slidable hub 14 for the channelguide 52 and a thread finger 62. A needle guide 38 rigid] y mounted on the shaft 10 is oscillated in time relation to the needle 4 by a rack 46 and gear segment 44. The channelguide 52 is moved to and from the work by a lever 56 operated by a cam on the main cam shaft 28 and the thread finger 62 is similarly operated substantially in the line of feed and in the opposite direction to the feed of the work. The awl 74, which is situated on the same side as the needle and pierces the work from the outside, and the back-gauge 76 are mounted on a second slide so as to receive in similar manner work-feeding and work-engaging movements. The back-gauge 76 is held yieldingly against the work by a spring mounted in a recess in the carrier 78.
Patent GB-1097383-A (GB)
Title: Yarn guide for winding machine
IPC: B65H57/00
Filed: 1965-08-27
Abstract: 1,097,383. Winding. LEESONA CORPORATION. Aug. 27, 1965 [Sept. 8, 1964], No. 36845/65. Heading D1J. In an automatic winding machine wherein the package 10 is reversed and brought to rest in the event of a thread breakage and the yarn ends are taken to a knotter 26 spaced from the normal path of the thread, the return of the knotted yarn to the continuously operating traverse device 18 is delayed so that the package can be brought up to normal speed before traversing is resumed. To this end a rotatable, tubular, grooved guide member 50 is positioned to receive the yarn as it is released from the knotter 26. Guide 50 is thus rotated by the yarn running thereover and thus progressively moves the yarn towards its unsupported end. Simultaneous with the operation of the knotting device a yarn carrier 60 biassed anticlockwise about a pivot 58 is cocked to the position shown in Fig. 1 and held there by a trigger (70) (Fig. 4, not shown) such that the yarn moving along member 50 deflects the trigger 70 which releases carrier 60 which rotates anticlockwise and returns the yarn to the beginning of guide 50 so that it may repass walong the guide before dropping onto the traverse guide 18 to be retraversed. Thus a longer time is allowed for the package 10 to be brought back to normal winding speed. If the package has reached normal winding speed when the thread deflects the trigger 70 then the tension in the thread will be sufficiently high to cause the thread to override a sprung finger on member 60 and immediately pass to the end of the guide 50.
Patent GB-817407-A (GB)
Title: Improvements in or relating to insulating constructional panels
IPC: E04C2/288
Filed: 1956-12-03
Abstract: 817,407. Building panels. PERTELIUS, O. Dec. 3, 1956 [Dec. 3, 1955], No. 36959/56. Class 87(1) A building panel comprises o u t e r layers a, b of porous, expanded, foamed or light-weight concrete cast on opposite sides of an insulating layer comprising corrugated paper board &c. c arranged with its channels perpendicular to the outer layers. The concrete is of such consistency that during casting it enters the channels of the insulating layer but does not fill them. The corrugated paper board c may extend over the whole area of the panel, Fig. 1, not shown, or it may be interrupted, the intervening spaces being filled with glass wool d or other insulating material.
Patent GB-871200-A (GB)
Title: Undercoat compositions for sealing porous surfaces
IPC: C08L89/00
Filed: 1958-11-18
Abstract: A composition suitable for use as a sealing undercoat comprises glue, a white or coloured pigment, bentonite as a thickening agent with or without another thickening agent, e.g. carboxymethyl cellulose, and water.  Pigment extenders may also be incorporated. Exemplary compositions include glue, and bentonite, with one or more of titanium dioxide, lithopone, zinc sulphide, china clay and mica, to which suspensions of coloured pigments may be added.
Patent GB-878301-A (GB)
Title: Method of manufacturing refractory materials and products thereof
Inventor: THOMPSON ARTHUR HERBERT
IPC: C04B38/08
Filed: 1956-12-04
Abstract: Porous refractory material is obtained by feeding argillaceous or other refractory material as particles into contact with a gaseous medium in the hot zone of a furnace, agitating the particles and gas to cause the particles to impinge against each other and the surfaces of the furnace hot zone, burning the gas to produce a temperature high enough and for a time long enough to make the particles pyroplastic, thereby causing them to agglomerate together and on to the furnace surfaces until they accumulate to a size sufficient to overcome their adherence to the surfaces and so fall to a cooler zone of the furnace from whence they are removed.  The agglomerates may then be crushed and sieved to size, a binder added e.g. unburned argillaceous material sulphite lye on core gum (a starch adhesive) together with water and the mixture moulded.  Fireclay and sillimanite are specified, and the product can be used as lightweight aggregate for concrete.
Patent GB-1473969-A (GB)
Title: Recessed screw heads and drivers
IPC: B21K5/00
Filed: 1975-09-10
Abstract: 1473969 Forging; screwdrivers PHILLIPS SCREW CO 10 Sept 1975 [12 Sept 1974] 37236/75 Headings B3H and B3N [Also in Division F2] To improve the grip between a screwdriver and the driver-engageable surfaces of a screw head, a small rib, a few thousandths of an inch thick, is formed on at least one screw-engaging surface of the screwdriver. Preferably the driver engageable surfaces of the screw have similar but differently orientated ribs (see Division F2) into which the screwdriver ribs can bite, since the screw is normally of softer material that the driver. In Fig. 11, each driving surface 46 of a cruciform bit has two transverse ribs 50, 50a. Similar ribs may also be formed on the back-out faces 46<SP>1</SP> (Fig. 16, not shown). In Fig. 16A, a rib 52 extends along the free edge of each driving face, and optionally also of each back-out face, the rib being a projection, Fig. 17, or formed by hollowing the blade at 5A, Fig. 17A. A second rib (52a) may be provided parallel to the rib 52 (Fig. 19, not shown) or at an angle to the rib 52, (54) (Fig. 21, not shown). In Fig. 27, a series of transverse ribs 60 is provided on the inclined free edge 56 of each blade 34 of a cruciform bit. In Fig. 28 a rib 64 is formed at the bottom edge of each intermediate surface 36 separating the blades 34 of a cruciform bit, and a second rib (64a) (Fig. 33, not shown) may be added part-way up each surface 36. Similar ribs may be provided on the blades of a three blade bit (Figs 51-55, not shown). A punch 150, Figs 58, 59, for cold-forming the driving recess of a screw head has shallow grooves 168, e.g. a few thousandths of an inch deep, extending longitudinally of the driving face forming surfaces 162 to form small ribs on the driving faces of the recess. The grooves may be of constant section, as shown, or tapered (Figs 60, 61, not shown), or may be formed in the intermediate walls (184) of the punch (Figs 62, 63, not shown). Two or more grooves may be provided in each surface, and a groove or grooves may be formed in the back-out face forming surfaces 164.
Patent GB-793420-A (GB)
Title: Improvements in saw chains
IPC: B27B33/14
Filed: 1956-12-06
Abstract: 793,420. Sawing. AKTIEBOLAGET BERGBORRMASKINER. Dec. 6,1956 [Feb. 1, 1956], No. 37337/56. Class 145. The cutter teeth of a saw chain are carried by links 4 arranged alternately at one and the other side of the longitudinal middle plane of the chain and have their laterally-bent upper portions 7 shaped to a curved form in the longitudinal direction of the chain. The drive links 2 of the chain are interconnected by pairs of links 3 which consist alternately of identical links and a link 3a associated with a tooth link 4. Depth gauges 8 are provided on alternate drive links 2. The rear edge 7b of the bent portion 7 of each tooth abuts the adjacent drive link 2 when the chain is straight. When the chain, where it passes round the outer curved end of the saw bar, is used for perforating wood, the curved relief behind the cutting edge prevents that part of the tooth from rubbing on the bottom of the hole being formed.
Patent GB-981576-A (GB)
Title: Improvements in or relating to multiple projector systems
IPC: G03B21/00
Filed: 1962-10-02
Abstract: 981, 576. Multiple projector systems. PHILIPS ELECTRONIC & ASSOCIATED INDUSTRIES Ltd. Oct. 2, 1962 [Oct. 5, 1961], No, 37355/62. Heading G2J. In a multiple projector system, the projectors each project an indicator sign contained in rota-  table disc 3 on to a common screen 10, and each has two mirrors 6, 8, rotating about mutually inclined axes 7, 9 by which its projection image is directed on to and is moved on the screen, the projectors being mounted side-by-side in a rock having movable stops 30 which engage adjustable abutment members 31 for rotatably pre-setting the mirrors, 6, 8, so that with all the projector axes ' parallel, each projected sign will coincide with that of another projector for similar movements of the mirrors. The rotary mechanism can be the same for each pair of mirrors 6, 8 and comprises a shaft 16 motor-driven through wide gear-wheel 15, a non-rotatable sleeve 17 internally threaded to engage and be axially driven by the screw ended portion 16a on shaft 16, limited by pin 24 within slot 25 in outer sleeve 18. The nose 20 of sleeve 17 displaces lever 21 and so rotates mirror surface 19 through the engagement of gear 22 and quadrant 23 whose ratio is 1:2 so that the projected sign moves a distance equal to that of sleeve 17. Abutment set-screw 31 is carried by radial arm 29 clamped to sleeve 27 which is  fixed to shaft 16, and when arm 29 is displaced by adjustable stop rod 30, the entire rotary mechanism is shifted and mirror 1, 9 is angularly adjusted, wide gear 15 permitting this movement of shaft 16. Screw 31 is held against rod 30 by adjustable spring-loaded plunger 33. The projectors are interchangeable in their holders and their ends are adjusted to lie in a common plane by abutting screws 67. In a modification, the gear wheel 37 driven by the motor does not shift axially with its shaft 38, a hollow shaft 42 replaces shaft 16 and slides axially on and rotates with shaft 38 pin 43 entering slot 44 for this purpose. Radial arm 55 is screwed into sleeve 54 retained between collar 52 and ring 53, so that the mechanism may be shifted by rod 56 as before. A curved screen may be used.
Patent GB-836214-A (GB)
Title: Improvements in or relating to control systems for sewing machines
IPC: D05B69/18
Filed: 1956-12-07
Abstract: 836,214. Sewing machines. PFAFF A. G., G. M. Dec. 7, 1956 [Dec. 9, 1955], No. 37425/56. Class 112 [Also in Group XXXVII]  Driving: feed, reversing and regulating; presser bars lifting other than periodic. The operating speed of the sewing machine, the direction of work feed, and the raising of the presser foot, are all controlled by a common knee-operated lever. The lever comprises a rod 76 pivoted at 75 and carrying a spring-loaded sleeve 82 to which is attached a knee-bow 88. The rod 76 abuts a switch rod 44 for controlling the driving motor and the sleeve 82 carries an abutment 86 contacting arms 67 pivoted at 66 to a casing 62 and inter-connected by a rod 68 abutting a roller 69 on a switch rod 58 floatingly mounted in the casing between springs 59, 60. The switch rod 58 controls the circuits of solenoids controlling the direction of work feed and the lifting of the presser foot. In the rest position shown the switch rod 44 bridges contacts 46 to close the circuit through a magnetic braking disc of an electromagnetic coupling such as described in Specification 808,855, connecting the driving motor to the driving pulley. Movement of the knee-operated lever anti-clockwise closes a circuit through a rheostat 42 to energize the coupling. At any position over this range of movement the sleeve 82 may be raised to cause the switch rod 58 to bridge contacts 53 to reverse the direction of feed. Movement of the knee operated lever clockwise from the rest position causes closure of contacts 54 to cause lifting of the presser foot.
Patent GB-1162346-A (GB)
Title: Code Reader
IPC: B07C3/14
Filed: 1966-08-22
Abstract: 1,162,346. Sensing records. PLESSEY CO. Ltd. 22 Aug., 1966 [17 Sept., 1965], No. 37446/66. Heading G4M. To reduce the risk of sparks being produced and interfering with the sensing of luminescent marks on letters, a thin sheet of glass is interposed between the letter path and the input end of light guides leading to photodetectors so that electrostatic build-up caused by letters brushing against the light guides is obviated.
Patent GB-1351047-A (GB)
Title: Manufacture of 1-nitroanthraquinone
IPC: C07C205/47
Filed: 1971-08-10
Abstract: 1351047 1-Nitro anthraquinone BADISCHE ANILIN- & SODA-FABRIK AG 10 Aug 1971 [11 Aug 1970] 37465/71 Heading C2C 1 - Nitro anthraquinone is obtained by the nitration of anthraquinone in heterogeneous phase with nitric acid in sulphuric acid of 70- 90% concentration at 20-60 C., the nitration being continued until the reaction mixture contains at least 70% by weight of 1-nitro anthraquinone based on the total weight of anthraquinone plus nitrated anthraquinones. Pure 1-nitro anthraquinone may be obtained from the reaction mixture by washing the mixture with water, freeing it from water and washing with a carboxamide, e.g. formamide, N,N- dimethyl formamide, N,N-diethyl formamide, N-formyl piperidine, N-formylmorpholine, N- methylpyrrolidone, N,N-dimethyl acetamide, N,N-dimethylpropionamide or mixtures thereof.
Patent GB-838653-A (GB)
Title: Improvements in or relating to liquid-blast electric switches
IPC: H01H33/80
Filed: 1956-12-10
Abstract: 838,653. Liquid-blast switches. SIEMENSSCHUCKERTWERKE A.G. Dec. 10, 1956 [Dec. 8, 1955], No. 37697/56. Class 38 (5). In a liquid-blast switch of the low-oil-content type having an arc-quenching chamber filled with liquid, additional liquid is forced into the chamber during an opening operation by means of a pneumohydraulic accumulator, the pressure in the accumulator being so chosen that liquid is forced into the chamber when a low-current arc is established, but not when a short-circuit arc is established. The switch may be of the expansion type, oil being caused to flow into the expansion chamber 2 from the accumulator 20 when the coil of an electromagnetically-operated valve 23 is energized. The accumulator has a gas-filled bag 21 and is charged with oil through a non-return valve 26 by means of a gear-type pump 29 which is driven by a motor 28 under the control of a pressure-operated switch 27. A resistance indicated at 35 may be connected between the fixed contact 3 and an intermediate electrode 36 in the chamber 2.
Patent GB-956161-A (GB)
Title: Textile printing compositions
Inventor: MACLEOD JOHN KENNETH
IPC: D06P1/92
Filed: 1961-10-23
Abstract: Textile printing compositions comprise an aqueous emulsion derived from a mixture of a chlorinated hydrocarbon solvent and a hydrocarbon solvent, a colouring matter and an emulsifying agent, wherein the chlorinated hydrocarbon is used in a proportion which is up to 30% by weight of the combined said solvents.  The colouring matter may be a pigment or a dyestuff as well as materials which produce discharge or resist effects but is especially a reactive dyestuff.  The chlorinated hydrocarbons specified are methyl chloroform, trichloroethylene, methylene chloride, tetrachloroethylene or mixtures thereof and the specified hydrocarbons are petroleum distillates including xylene, white spirit and kerosene.  The emulsifying agent is preferably non-ionic, e.g. an adduct of ethylene oxide with a fatty alcohol or higher alhylated phenol, but anionic agents may be used, e.g. dinaphthylmethane disulphonate.  The compositions of the present invention may be of the oil-in-water or water-in-oil type and may be prepared with the aid of a high speed stirrer.  They may further contain adjuvants, e.g. dyeing assistants, catalysts and other thickening agents (alginates are exemplified). The compositions may be applied to textile materials of natural or regenerated cellulose, cellulose esters, polyamides, aromatic polyesters, polypropylene, polyacrylonitrile, wool, silk, glass or mixtures thereof and then dried at 50-55 DEG C. and steamed at atmospheric pressure.  Examples are given.  Specifications 838,304 and 921,425 are referred to.