baber/WOPTO huggingface dataset:
Patent GB-208575-A (GB)
Title: Improvements in sunblinds and the like
IPC: E04F10/06
Filed: 1922-08-16
Abstract: 208,575. Golding, E. C., Perks, C., and Pemberton, A. J. Aug. 16, 1922. Window blinds.-The rail c at the free edge of a sun-blind a is projected from or drawn towards the spring roller b by two arms k pivotally connected to the rail c and to two travellers e. The travellers are caused to move simultaneously in opposite directions by means of an endless chain h, g upon a guide d arranged parallel to the roller b, said chain being operated by hand or power. The arms k may be connected to the rail c through the medium of short links l and may also be supported by arms m pivoted in fixed brackets m<1> and to the arms k at about their centre. In a modification, each traveller e is mounted so as to travel the whole width of the blind.
Patent GB-306854-A (GB)
Title: Improvements in machine guns and other automatic firearms
IPC: F41A19/28
Filed: 1927-08-25
Abstract: 306,854. Revelli, B. A. Aug. 25, 1927. Machine guns.-Relates to machine guns and like automatic guns of the kind in which the breech-block is not positively locked at the moment of firing, and consists in the combination of means for effecting the percussion a little before the closure of the breech, with means for admitting the pressure of the exploded charge to a spaces around the neck of the cartridge to balance the internal pressure thereon. As shown in Fig. 6, small longitudinal grooves 45 are formed in the chamber of the gun barrel around the neck of the cartridge and extending slightly beyond the front end of the cartridge. The gas pressure thus acts both inside and outside the neck of the cartridge, and as a result there is no risk of deformation of the cartridge or of escape of gas. The barrel 1 is attached to the front plug 3, Fig. 1, of the breech casing 2, by a bayonet-like joint locked by a spring catch. The breech-block 6 is cylindrical in form and slidably mounted in the breech casing 2, which may be made from a Mannesman tube. A handle 9 is attached to the breech-block 6 by a pin 10, which is passed through a hole in the breech casing; and the handle 9 is guided in a rectilinear slot 13 in the breech casing. The breech-block contains a spring- cushioned sliding firing-pin 12, and a hammer 15 pivoted at 16 and adapted to strike and be deflected by a fixed stop 17 forming part of an ejector to fire the cartridge a little before the breech is closed. An extractor 19 is pivoted in a longitudinal groove 60 in the breech-block, and is wedged out by a fixed incline 21 when the breech is closed. After the initial short part of the recoil movement of the breech-block, the extractor 19 swings in and seizes the spent cartridge and withdraws it from the gun chamber. The surface of the breech-block 6 is made with longitudinal grooves 42, Fig. 2a, so that dust entering thereinto may not oppose any resistance to the sliding of the breech-block. This block is held cocked by a sear 35 operated by a trigger 33 controlled by a spring 34, and this trigger mechanism is contained in a casing 32 in front of a handle 41. The recoil of the breech-block 6 is taken up by a spring 7, Fig. 1<a>, and a buffer 40; and a screw plug may be provided at the rear end of the spring 7 to adjust the compression of that spring. A butt 36 is provided, but may be detached and replaced by a plug with a handle. In a modification of the firing-mechanism, the hammer 15 is not pivoted to the breech-block but takes a pivotal bearing against the front of the handle 9. In another modification, Fig. 5, the hammer 48 has a projection 48<1> which acts as the firing pin and fires the cartridge when the hammer is deflected about its pivot 49 on the breech-block 6 by the impact of a lug 48<11> of the hammer against the face of the plug 3 of the breech casing.
Patent GB-425405-A (GB)
Title: Method and apparatus for burning limestone and similar materials and recovering carbon dioxide
IPC: C04B2/10
Filed: 1933-08-10
Abstract: 425,405. Calcining limestone &c. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Gillette Research Corporation; 1601, Nicholas Building, Toledo, Ohio, U.S.A.) Aug. 10, 1933, No. 22405. [Classes 51 (i) and 51 (ii)] Retort furnaces.-Limestone and other materials which give off carbon dioxide are heated in a continuously operated retort or muffie having at least one wall made of carbborundum to which the charge will not adhere at the dissociation temperature. Vertical retorts of about 20 feet in length, 10 inches in breadth and 2 inches in depth may be used, and the narrow sides may have inclined slots or openings for exhausting the carbon dioxide. The heating flues along the broad sides are fired from their lower ends and the combustion products may be passed through the charge in the storage hoppers to effect drying or preliminary heating. The retorts may be built up of tongued and grooved sections and their upward expansion may be accommodated in a casing 41, Fig. 6, between which and the uppermost cast metal section 42 is a packing 46 of asbestos. The air supply to the burner 49, Fig. 4, at the lower end of a flue may be heated in a casing 50 having an internal wall 54 around the apertured conical nozzle 47, the air being delivered from the casing to the space within the wall 54 by an external pipe 56, or by an internal pipe extending through the wall. In a modification, Fig. 9, the muffle A is inclined, and is separated from the flue 67 by a carborundum wall 64. The charge is fed over inclined shelves 63 between which the heating gases pass to the chimney 68. The flow of material is controlled by the gates 69, 70 and the discharge device 65.
Patent GB-1196367-A (GB)
Title: Web Aligning Mechanisms
Inventor: GUTMAN ISAJ
IPC: B65H23/038
Filed: 1968-05-13
Abstract: 1,196,367. Feeding webs. ENGLISH NUMBERING MACHINES Ltd., and FLEXICOFRANCE. 13 May, 1968, No. 22576/68. Heading B8R. In transverse web-registering apparatus, photo-electric means 14, 15 and/or pneumatic sensing means 14<SP>1</SP>, 151 control a motor driving the shaft 9 of a cam 8, which cam tilts a pivoted beam 3 about an axis 4, a guide roller 1 being carried by the beam 3 in two end bearings 2. The beam 3 is biased against the cam 8 by an adjustable weight 7 and chain 5.
Patent GB-226388-A (GB)
Abstract: 226,388. Cleverly, A. W. Jan. 26, 1924. Tubes, water.-In horiflue boilers, a water tube is arranged within the flue wholly beyond the bridge and communicates at its front and rear ends with the water space at the upper and lower sides of the flue respectively. A water pipe a substantially coaxial with the flue b is bent at its ends to communicate at c with the water space. The upward forward portion is situated behind the bridge e. The pipe is from 6 to 8 inches in diameter and its length is about one-third the boiler length. Instead of the flangs attachment of the ends, a welded joint may be used.
Patent GB-279597-A (GB)
Title: Improvements in and relating to apparatus for truing toothed gears or other bodies having circular series of radiating surfaces by a grinding or lapping action
IPC: B23F19/04
Filed: 1926-09-14
Abstract: 279,597. White, A. E., (Copland, A. W.). Sept. 14, 1926. Gear wheels, grinding and trueing teeth of; grinding interfitting parts together.-A machine for lapping gears or other bodies such as splined shafts, index plates, &c. comprises a lap having a plurality of circumferentially spaced teeth of complementary form to the gear being ground. the gear and lap being axially reciprocated in relation to each other and automatic power-driven means being provided for indexing the gear while it is out of engagement with the lap. The blank E is mounted on an arbor D carried between centre spindles B, C and the lap G of cast iron or other material is in the form of an internally toothed wheel in which the gear E may slide. The lap-holder F is reciprocated by a bifurcated oscillating link J actuated by an adjustable crank L and the length of the stroke is such that the lap passes out of engagement with the blank at each end of the stroke to permit indexing. The shank of the lap-holder carries splines engaging straight longitudinal grooves in a fixed bearing G'. The indexing is effected by a shaft M driven by bevel gearing from the crank-shaft and connected by a universal shaft N, Geneva movement 0, spindle P, and gears Q, Q' to a sleeve S having lugs S' engaging a carrier T on the blank arbor. The teeth of the gear and lap are kept in contact by means of spring pressure tending to rotate a ratchet wheel W secured to the sleeve S, a lostmotion connection being provided in the gear train from the wheel Q to permit this rotation. The spring U for applying this torque pressure is preferably interposed between members U<1> and U<2> of a slide actuated by a cam V on a carriage, the member U<2> carrying a pawl U<3> engaging the ratchet wheel W. The action of the cam is to vary the torque pressure during engagement and disengagement of the gear and lap so as to maintain uniform pressure per unit area between gear and tap throughout the stroke. The invention is also applicable to the grinding of helical gears. In this case the fixed bearing G<1> has helical grooves G<2>, Fig. 8, so that during the reciprocation of the holder F the lap is rotated through the angle determined by the helical teeth of the gear. The invention is also applicable to the grinding of internal gears, the lap in this case having external teeth. In another modification, the lap may ber stationary and the gear may be reciprocated axially as well as indexed. In a further modification, the gear may be reciprocated and the torsional pressure applied through the lap.
Patent GB-966084-A (GB)
Title: Improvements in or relating to safety razor blades
Inventor: HANSOM BERNARD STEPHEN
IPC: B26B21/60
Filed: 1960-06-29
Abstract: A razor blade, e.g. of stainless steel, has adjacent the cutting edge a coating of a per-halocarbon polymer.  The coating may be applied by dipping, flame spraying, electrostatic deposition, foil laying or by applying the blade to a stropping disc made of the per-halocarbon polymer or to a grinding wheel impregnated with the per-halocarbon polymer.  The polymer may be polytetrafluoroethylene, polytrifluorochloroethylene or a copolymer of per-fluoroethylene and per-fluoropropylene.  The blade may be pre- or post-heated.  The coating composition may be an aqueous suspension of the polymer comprising a non-ionic p  wetting agent, e.g. octylphenoxyethanol. The polymer may be mixed with an adhesive type resin.  The second Provisional Specification discloses coating with the wetting agent alone.
Patent GB-1443667-A (GB)
Title: Magnetic brush type developing mechanism for an electrophoto graphic copying machine
IPC: G03G15/09
Filed: 1974-05-21
Abstract: 1443667 Magnetic brush developing apparatus FUJI XEROX CO Ltd 21 May 1974 [23 May 1973] 22743/74 Heading G2H The apparatus comprises a plurality of rotatable developing rolls 3 each containing a stationary cylindrical magnet 4 the poles 5, 6 of which are so arranged as to produce a magnetic field that causes the developer particles 2 to follow the path shown. A bias voltage is applied to the rolls 3 with respect to a drum 1 bearing an electrostatic latent image to be developed.
Patent GB-1429514-A (GB)
Title: Catv system
IPC: H04N7/16
Filed: 1973-05-14
Abstract: 1429514 Television distribution HOCHIKI CORP 14 May 1973 [13 May 1972] 22768/73 Heading H4R In a community antenna television distribution system, each subscriber location 6 includes a generator 8 for alarm signals below the distribution frequency band and transmitted over the distribution network to a receiver 9. The network includes a trunk containing circuits 3 and branches containing circuits 4 which include RCL filters (Figs. 3, 4, not shown) to ensure that only TV signals are available at terminals 23 feeding TV sets 7 and that only alarm signals are available at terminals 24 connected to the generators 8 and the receiver 9 located in a caretaker's room 10. The generators are energized and connected to the network through normally open switches. The circuit 3 nearest the antenna 1 and amplifier 2 includes a capacitor (18) to prevent alarm signals reaching the antenna. The receiver and generators may be two-way, allowing intercommunication between caretaker and subscribers, the alarm frequencies then being unique to respective subscribers. The caretaker may transmit closed circuit programmes and/or a general alarm which automatically applies power to the TV receivers and switches them to the appropriate channel.
Patent GB-702890-A (GB)
Title: Improvements relating to flame failure protection devices for gas fired furnaces andother gas burner apparatus
IPC: F23D14/72
Filed: 1952-09-11
Abstract: 702,890. Controlling gas burners. SEVILLE, J. R., and SPOONER FOOD MACHINERY ENGINEERING CO., Ltd. Oct. 22, 1952 [Sept. 11, 1952], No. 22807/52. Class 75 (1) A flame failure protection device for a gas fired furnace comprises a gas burner having two burner tubes electrically insulated from one another and so arranged that the flames therefrom impinge on one another to complete an electrical circuit to control the flow of gas to the tubes. The burner tubes a, b, Fig. 6, have terminals m connected to an amplifier u which controls a relay v for actuating an electromagnetic gas valve w in the pipe x supplying the burners, whereby the amplifier circuit is completed by the flame at the burners a, b to energize the relay v to open the valve w, and in the event of flame failure the valve w is closed. In a furnace having a plurality of burners a, b supplied with gas through a common valve the flame conducting paths may be connected in series so that if one burner is extinguished the gas supply to all the burners is cut off. Each burner tube is carried by an electric insulating block e, Fig. 2, held between nuts f, g threaded on the burner tube. Bolts h secure the block e between a base k and a cover i to which gas is supplied by a pipe j. Each terminal m is formed as a pin threaded through the nut g into engagement with the burner tube and having an insulating sleeve n. Alternatively, the burners a, b, Fig. 5, are of the Bunsen type, air being admitted by apertures o to a chamber p to be drawn into the burner tubes by gas jets from nozzles q. The burner tubes are clamped to the furnace wall plate s by ceramic washers and bushes t and have electric terminal connections r. Specification 694,181 is referred to.
Patent GB-720523-A (GB)
Title: Improved mounting for the undercasings of textile carding-engines
Inventor: MARVIN ARTHUR
IPC: D01G15/32
Filed: 1952-09-11
Abstract: 720,523. Carding-engines. T. M. M. (RESEARCH), Ltd. Sept. 11, 1953 [Sept. 11, 1952], No. 22820/52. Class 120 (1).  Supporting means for the undercasing of a carding- engine comprises at each side of the machine a bracket 12 mounted to be vertically adjustable upon the framing 10 by means of a setscrew 14 and carrying a fulcrum pin 16 on which pivots, in a vertical longitudinal plane, a rail 17 connected to the undercasing sections by means of pegs or dowels 18 screwed into the rail so as to enter holes and slots in the undercasing grid 11 : at each end of the rail is a lug 173 carrying a screw 19 bearing against a fixed part of the machine framing and by means of which the rail and hence the grid 11 may be adjusted radially with respect to the main carding cylinder or other element with which it is associated.
Patent GB-388024-A (GB)
Title: Improvements in automatic regulator control for synchronous alternating current machines running in parallel
IPC: H02J3/46
Filed: 1931-08-14
Abstract: 388,024. Supply systems. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London, and STEWART, C., 49, Mansfield Road, Luton. Aug. 14, 1931, No. 22971. [Class 38 (iv).] Regulation, automatic.-In a system of paralleled a.c. machines T<1> . . T<4> in which the wattless current is evenly distributed by providing a wattless current regulator G<1> . . G<4> on each machine, the current coil C<1> . . C<4> of which is connected to the secondary of a current transformer tl .. t<4> associated with the machine feeder, and all the secondaries s<1> . . s<4> of the current transformers are connected in series in a ring, the machines are connected to act as trailers to a master machine which is regulated solely to control the voltage of the system and has a current transformer S the secondary of which is in series in the ring formed by the secondaries of the former current transformers t<1> .. t<4>. The voltage coils V<1> .. V<4> of the wattless current regulators G<1> . . G<4> are connected to potential transformers such as P on their respective machines. The regulators may be of the Tirrill type and switch gear of the double pole make-before-break type may be provided to energize or open-circuit the current coil on the main control regulator of a machine according to whether the machine is to run as a trailer or a master machine. The current transformer secondary of a standing machine may similarly be isolated from the current transformer ring main.
Patent GB-866991-A (GB)
Title: Improvements in or relating to manhole covers
Inventor: JENNINGS STANLEY WILLIAM
IPC: E02D29/14
Filed: 1958-07-17
Abstract: 866,991 Manhole covers. NATIONAL RESEARCH DEVELOPMENT CORPORATION: July 8, 1959 [July 17, 1958], No. 23009/58. Class 107 A manhole cover has a rectangular frame 1 with a continuous plate 2 extending across the frame intermediate its length forming an upper tray which is divided by cross webs 3 into a plurality of cavities 4 which are filled with road surfacing material. Supporting the under surface of the plate are beams 5 which extend longitudinally of the cover. The cross-section of each beam increases in width towards the lower edge of the beam and the depth and width of the beam increases from each end thereof towards the centre. Two cross beams 6 extend below the lower edge of the beams 5 to form rubbing strips 7 which support the cover when removed from its supporting framework. The framework is formed by members 13 and 14 of L-shaped section and internal flanges on members 14 provide a seating for the undersurface 9 of the cover. The cover may be secured to the framework by bolts 12 and the cover may be lifted by keys inserted in the apertures 10.
Patent GB-405906-A (GB)
Title: Process for the production of an aqueous emulsion of a fat dissolving medium
IPC: C09K23/00
Filed: 1933-08-17
Abstract: Aqueous emulsions of fat dissolving agents, such as light or heavy benzines or trichlorethylene, are obtained by the use as an emulsifying agent of a thinly fluid acidified mucilage of carrageen, agar-agar, Irish moss or similar bodies which has been freed from thickeners, e.g. by centrifuging.  According to an example, a carrageen jelly is made by treating 6 parts of dried moss with 82 parts of water.  The temperature of the mixture is raised slightly and the jelly freed from thickeners in a centrifuge, giving 80--85 per cent of a thin mucilage.  This is mixed with approximately 3--4 per cent of oxalic acid and used to emulsify fat dissolving agents. The resulting emulsion is miscible with water in all proportions. Other acids can also be used, for example if meat or fish meal are to be rendered suitable for fodder, phosphoric acid may be used.
Patent GB-1207116-A (GB)
Title: Morphanthridine derivatives
Inventor: BERG ALEX
IPC: C07D211/70
Filed: 1969-05-06
Abstract: 1,207,116. Morphanthridine derivatives. DR. KARL THOMAE G.m.b.H. 6 May, 1969, No. 23114/69. Heading C2C. Novel compounds I wherein R 1  is H or CH 3 , R 2  is H and R 3  and R 4  are methyl; or R 2  together with R 3  or R 4  and the intermediate N and C atoms form a piperidine ring, the other R 3  or R 4  being CH 3 ; and X and Y are H or halo and their acid addition salts are prepared by dehydration of a compound II (wherein R 2  is other than H) or by dehydrogenation of a compound III with an oxidizing agent followed where required by salt formation. 2 - Acetamino - α - (1 - methylpiperidyliden-4- yl)-diphenylmethane is prepared by acetylation of the corresponding 2-amino derivative which in turn is prepared from 2-amino-α-hydroxy-α- (1 -methylpiperid-4-yl)-diphenrylmethane (prepared from 2-amino-benzophenone and 4- chloro-1-methyl-piperidine) by reaction with 80% sulphuric acid. Pharmaceutical compositions comprise a compound I in association with a suitable carrier or diluent, are administered orally, rectally, topically or parenterally and exhibit antihistaminic, sedative, spasmolytic, psychotropic and/or anti-emetic activity and/or an antiserotonine effect.
Patent GB-879940-A (GB)
Title: Improvements relating to electric induction apparatus
Inventor: BALL ERIC HAROLD
IPC: H01F30/10
Filed: 1957-07-22
Abstract: 879,940. Inductances. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. July 8, 1958 [July 22, 1957], No. 23121/57. Class 38 (2). A choke, e.g. for use with fluorescent lighting, has inner and outer cores 1 and 2 made of spirally wound strips of insulated magnetic material and yokes 3, 4 made of resin bonded iron flakes and formed by moulding or machining. The core sections 1 and 2, and the winding space 5 between them, may be of oval or other non-circular shapes and both core parts and coil 6 may be vacuum impregnated with a thermosetting resin. The yoke members 3, 4 may be insulated from members 1 and 2 by thin insulating members 10 and a further air gap 11 may be provided. The turns of the wound core sections may be insulated by varnish or by interleafing them with paper insulation. The clamping stud 8 is of non-ferrous material. Specification 710,719 is referred to.
Patent GB-690018-A (GB)
Title: Electrolytic production of magnesium and chlorine
IPC: C25C3/04
Filed: 1951-10-04
Abstract: 690,018. Electrolytic production of magnesium and chlorine. DOW CHEMICAL CO. Oct. 4, 1951 [Oct. 28, 1950], No. 23162/51. Class 41. Apparatus for electrolysing a molten electrolyte containing magnesium chloride to produce molten magnesium and chlorine gas comprises a cell with vertical parallel side walls 4, 5 and vertical parallel front and back walls, the front wall 6 having against the inside a terminal cathode plate 30 and the back wall 7 a terminal anode plate 35, and bipolar electrodes 39 being disposed at evenly-spaced intervals between the terminal electrode plates. The bipolar electrodes, which may consist of iron or steel cathodes secured to graphite anodes, are spaced from the side and bottom walls by insulating spacers 43 to form therewith separate electrolysis cells. The side walls are formed with troughs 12, 13 into which electrolyte overflows from the cells. The troughs at one end open into a supply chamber 23 from which electrolyte is delivered by a pump 71 into a distributing box 49 provided with adjustable tubular weir members 65 whereby the electrolyte is supplied to each of the electrolysis cells. The members 65 extend through openings in the cell cover 8, which is also provided with a pipe for the escape of chlorine gas. On electrolysis, the bubbles of chlorine gas and the pump 71 produce a circulation of the electrolyte, the effect of which is to remove globules of magnesium from the iron cathodes and deliver the magnesium with electrolyte to the troughs f2, 13, from which it passes to the chamber 23. The magnesium is trapped by baffles 24, 25 partitioning the chamber, openings 28 below the baffles allowing the electrolyte to return to the pump compartment. The electrolyte may contain by weight of salts 15 per cent magnesium chloride, 20 per cent calcium chloride, 15 per cent potassium chloride, 49 per cent sodium chloride and 1 per cent calcium fluoride.