baber/WOPTO huggingface dataset:
Patent GB-802047-A (GB)
Title: Electric well-heating apparatus
IPC: E21B36/04
Filed: 1956-02-06
Abstract: 802,047. Electric heating apparatus for wells. BOWMAN, H. D. Feb. 6, 1956, No. 3673/56. Class 39(3) Electric heating apparatus for clearing oil wells of congealed constituents of petroleum comprises a cylindrical shell containing heating elements 17 depending from a disc 15 and positioned above an impeller 13 driven by an electric motor 8. Connection means 19, conductors 21 and a thermostatic mechanism 24 are sealed within a casing 25, and a supply cable 20 is secured by a bushing 26 Supporting legs 29 rest on the bottom of the sump of the well and are adjustable. Initially, air is heated in the shell and forced out through apertures 14 or 18 by the impeller into the congealed mass which then liquifies and is itself heated and circulated by the apparatus. The heating elements and the impeller may be independently controlled, and a pump mechanism driven by electric or air power may be used in place of the electrically driven impeller.
Patent GB-947629-A (GB)
Title: Improvements relating to driving motors for sound reproducing apparatus
Inventor: DRAPER ALBERT ERIC
IPC: H02K21/46
Filed: 1962-01-31
Abstract: 947,629. Electric motors. MAGNAVOX ELECTRONICS CO. Ltd. Dec. 6, 1962 [Jan. 31, 1962], No. 3680/62. Heading H2A. A 1 Ph. A.C. motor for driving a gramophone or tape recorder comprises a rotor 12 within a stator formed by a continuous stack of laminations 4 having a number of polepieces 5, each of which has a shade ring 9 that is mounted in a slot 10 in the laminations and extends part of the way along the polepiece in the axial direction of the rotor, the part 17 of the rotor which rotates within the shaded part of the polepieces 5 having a squirrel-cage winding 20 and part 21 of the rotor which rotates within the other parts of the polepieces having a number of circumferentially spaced permanent magnet poles whereby in use the motor starts as an induction motor and subsequently runs as a synchronous motor. The polepieces which may number four, have at one or, as shown, both ends cut-away portions 11 accommodating the rings 9, so that stator coils 7 may closely surround the laminations. The rotor part 21 may be a four-pole sintered iron oxide and barium carbonate disc stuck by an epoxy resin 22 to a squirrel-cage end ring 19, and balancing may be effected by drilling a ring 23. A radiallystepped pinion 16 is driven by the rotor shaft 13 which is supported by a spring-loaded bearing 15, and a screw 28 is provided to limit axial rotor movement during transit.
Patent GB-524667-A (GB)
Title: Kneading pump
IPC: B01F7/08
Filed: 1939-02-06
Abstract: 524,667. Meshing screw pump. LEISTRITZ, P., and BURGHAUSER, .F. Feb. 6, 1939, No. 3851. Convention date, Feb. 4, 1938. Addition to 486,034. [Class 110 (ii)] A kneading pump as described in the parent Specification is provided with a feeding screw pump integrally connected to or intermeshing with the main rotor of the kneading pump. Fig. 1 shows a main rotor a meshing with a secondary rotor b in a casing c from the edge k. The feeding pump is formed by extensions of the rotors through an inlet chamber A whose inner casing diameter is greater than that of the casing c, to allow free entry of material to be pumped. The threads in the feeding pump are uniformly broad up to the line k. In a modification, the threads of the extended rotor b in the inlet A, are of increasing breadth, and a disc of an outer diameter equal to the thread of the rotor b is provided on the line k. Further arrangements show the spindle of the rotor b in the part A, as being of a larger diameter, or it may be without threads and have a smooth or fluted surface touching the peripheries of the threads on the main rotor. Fig. 7 shows an endless belt n surrounding the fluted end of the rotor b. The belt may have a roughened surface, and also convey the material to the pump. An additional short threaded rotor may mesh with the main rotor in the inlet section A, and may be of a larger diameter than the rotors a, b.
Patent GB-910693-A (GB)
Title: Improvements in or relating to jet pipes and to aircraft having jet pipes
Inventor: MARCHANT FRANCIS CHARLES IVOR
IPC: B64C29/00
Filed: 1960-02-03
Abstract: 910,693. Deflecting propulsive gases. BRISTOL SIDDELEY ENGINES Ltd. Jan. 27, 1961 [Feb. 3, 1960], No. 3867/60. Class 4. A jet pipe comprises an upstream portion and a straight downstream portion having a jet pipe outlet, said downstream portion being joined to the upstream portion through a joint lying in a plane oblique to a plane which is normal to the axis of the upstream portion, said joint permitting relative rotation of the upstream and downstream portions about an axis normal to the plane of the joint into and out of axial alignment with each other to adjust the jet pipe outlet directionally, and said downstream portion having straight axially-extending guide vanes mounted therein, which vanes are arranged to permit fluid to flow substantially undeviated through the upstream and downstream portions when the two portions are in axial alignment with each other and to assist in deflecting fluid flow through the downstream portion when the two portions are out of axial alignment with each other. An aircraft 20 is provided with a gas turbine engine (shown in dotted line) exhausting into a duct 21 which is bifurcated to form two jet pipes 22 and 23 which emerge from the fuselage behind fairings 24. Further jet pipes 33 are fed with compressed air from the engine compressor, the jet pipes being rotatable about a transverse axis so as to control the direction of discharge of the air. Each pipe 22, 23 terminates in a fixed outlet nozzle 12 and a rotatable nozzle 13 which adjoin on an oblique joint 16 whereby the portion 13 may be rotated from the axial full-line position to the gasdeflecting chain-dotted position shown in Fig. 2. The portion 13 is formed with guide vanes 17 and is rotated by a chain 26 which engages the outer wall of the section and is driven from a shaft 28 through gearing 29, 30, 31. The pipes 33 may be constructed in a manner similar to that described for nozzles 12, 13. The portion 13 may be fixed and section 12 rotated or both sections may be relatively rotated in opposite directions.
Patent GB-879699-A (GB)
Title: Improvements in or relating to the opening, cleaning and feeding of fibrous material
Inventor: OWEN THOMAS WILLIAM
IPC: C08F18/08
Filed: 1959-02-04
Abstract: 879,699. Preparing fibre for spinning. BRITISH COTTON INDUSTRY RESEARCH ASSOCIATION. March 21, 1960 [Feb. 4, 1959], No. 3885/59. Class 120(1) A machine for opening, cleaning and feeding fibre comprises a rotary beater, a chamber through which fibre opened and cleaned by the beater action passes to one or more suction cages, a hopper compartment which receives fibre from the cage(s), and means for compacting or compressing the fibre as it moves downwardly through the compartment to regulate the feed of fibre therefrom. In a machine comprising an opening and cleaning section A, similar to that described in Specification 606,281, and a feeding section B, fibre which may have been partly opened is delivered by a lattice 11, through compression rollers 12, 13, to a pedal feed 14 and a toothed, rotary beater 15. Covers 16 and 18 having adjustable portions 16a, 18a form a chamber through which fibre is conveyed pneumatically to a suction cage 17 the periphery of which, between the edge of cover 18 and a sealing roller 19, is exhausted through a conduit 17a. Fibre stripped from the cage by a roller 20 passes into a hopper 22 (one wall 22c of which has an adjustably hinged portion), from. which it is moved by a feed roller 21 to an. endless conveyer 24. The drive to the conveyer also transmits through a chain 32, wheel 31, cranks, as at 29. arms, as at 28 and a transverse bar 27 to cause a plate 23 extending across the. width of the hopper to. reciprocate therein, at. a speed adjusted according to the rate of feed of fibre from the machine, thereby compressing, (against roller 21) and regulating the. fibre. The. speed ratio between the conveyer and crank drives may be maintained over a given range of speeds or the relative speeds may be varied. The feed of fibre to the beater may be temporarily suspended if the fibre in the hopper reaches a predetermined high level e.g. limit switches, Fig. 3 (not shown) in the hopper may interrupt the drive of lattice 11.
Patent GB-233786-A (GB)
Title: Improvements in tennis courts, badminton courts, sports grounds and the like
IPC: E01C13/06
Filed: 1924-02-15
Abstract: 233,786. Bamber, A. K. Feb. 15, 1924. Continuous paving and flooring.-A porous and resilient paving for tennis and like sports grounds, consists of an uppermost layer of plastic material formed by heating together resin, boiled linseed oil, dissolved rubber, and colouring matter preferably green, and mixing the solution with heated aggregate such as graded sand, iron slag, or other material. As an example, the solution mav consist of ¥ to 3 parts by volume of powdered resin, 1 part boiled linseed oil, 1 part of dissolved rubber, and 1 part of colouring matter, this amount of solution being mixed with 30 parts of dry sand or 25 parts of honeycombed iron slag graded between 1-32 and 3-32 inch. The paving is laid, rolled, and smoothed while hot. The foundation may consist of porous breeze concrete or preferably tarred iron slag or coarse stone, the larger voids being filled with tarred macadam or like substance. The ground is first prepared by rolling in coarse flints, broken stone, or brick. Reinforcements mav be added if desired, in the paving. For white markings, a solution as described above is mixed with marble dust, calcined flint, or limestone.
Patent GB-1514592-A (GB)
Title: Process for employing a high percentage of scrap resin in an extruder
IPC: B29C48/05
Filed: 1976-02-02
Abstract: 1514592 Extruding scrap plastics DEERFIELD PLASTICS CO Inc 2 Feb 1976 04073/76 Heading B5A A thermoplastics mixture, comprising ground scrap and virgin pellets, is extruded from a single or multiple screw extruder by feeding the scrap and virgin pellets to the extruder barrel separately, at respective upstream and downstream inlets 26, 25, which are spaced apart by at least one turn of the screw flight to enable compression and reduction in volume of the scrap, so that a void is formed in the volume of scrap in the screw channel, for the admission of the virgin pellets from the inlet 25. The process enables uninterrupted extrusion upon blockage of the feed of the scrap, by the screw channel then being filled by the virgin thermoplastics from inlet 25. The scrap and virgin material may comprise the same or different thermoplastics, e.g. medium or low density polyethylene, or polypropylene, and the scrap may be fed to its inlet 26 admixed with virgin polymer in a weight ratio of 1 to 6:1, to yield at least 20% by weight of scrap in the extruded mixture. In the embodiment, blown tubular film is extruded and scrap film from rolls 11 is ground in grinder B and, optionally including virgin pellets of the same or different thermoplastics admixed at 16, is delivered to a cyclone hopper 19 feeding the inlet 26, by a blower 17 which enhances gravitational feed of the scrap. The virgin plelets are gravitationally fed to inlet 25, from a hopper 23. The scrap, or its admixture, is fed in amount to fill 40 to 70% of the screw flights after its compression. The inlets may be spaced apart by up to 3 turns of the screw flight and the inlets 26, 25 may be of an area ratio of 2 to 4, or 6 to 1, and may respectively be rectangular and circular. The extruder may comprise a single, or a multiple screw.
Patent GB-120738-A (GB)
Title: Improvements in connection with Apparatus for Throwing Missiles, Grenades, Bombs or the like.
Inventor: LAWRENCE ALBERT PONKING
IPC: F41B3/03
Filed: 1916-03-20
Abstract: 120,738. Lawrence, A. P. March 20, 1916. Ordnance, mechanical.-Relates to spring projectors for bombs, grenades, or other missiles, and consists in a particular construction of projector wherein the missile is carried by a throwing-arm d pivoted at b<2> between the side cheeks of a quadrant-shaped member b. This quadrant pivotally carries a spring-controlled ratchet-lever f<1>, the outward movement of which is limited by a stop b<3> on the quadrant. When the throwing- arm is moved downwards against the action of a torsion spring d<2>, a detent d<3> on the arm rides over the ratchet teeth f<2>, and, engaging one or other of them, retains the arm in a position corresponding to the desired range. The arm is released by pressing downwards a finger-piece f<3> extending from the ratchet lever, and, on reaching the position shown in chain lines, the arm strikes a stop or buffer f, thereby projecting the missile. As an additional means of varying the range, the quadrant may be elevated about a pivot a<1> on the base a and fixed by means of a thumbscrew c engaging a slot a<3> in a plate a<2> upstanding from the base a.
Patent GB-720710-A (GB)
Title: Improvements in or relating to ash-trays
IPC: A24F19/00
Filed: 1953-02-13
Abstract: 720,710. Ash - trays; cigarette rests. SCHREIBER, S. Feb. 13, 1953, No. 4165/53. Class 130. A light metal alloy, moulded "plastic" or other solid bar 2 of material thicker than that of an ash-tray 1 across which it bridges has in its upper face transverse grooves 10, preferably suitably variously sized, to receive cigars or cigarettes, and in its lower face near its ends transverse notches 5 gripping portions, preferably externally flat, of the tray rim, to which it may be welded, soldered, rivetted or cemented. The tray 1 may be circular, oval or polygonal in plan and may be a moulding, as of a ceramic or "plastic" material, or a cast, pressed or spun light metal alloy construction ; it may be mounted on a pedestal which may receive debris through a central opening in the tray base. A match-box holder may be centrally mounted on the bar 2, the lower face of which may be slightly concave lengthwise or flat.
Patent GB-290371-A (GB)
Title: Improvements in coin-freed mechanism
IPC: G07F11/20
Filed: 1927-02-15
Abstract: 290,371. Lockerbie & Wilkinson (Birmingham), Ltd., and Varndell, S. H. Feb. 15, 1927. Coin action, mechanical-connection and with stationary coin forming abutment.- An operated part A, Fig. 1, of a coin-freed mechanism, such as the drawer of a cigarette or sweetmeat delivery machine or the slider of a towel or ticket issuing machine, is normally prevented from being withdrawn along a guide C by a striking surface a thereon engaging the rear end of a carrier B, which is pivoted at b and held raised by a spring M. A rod d, having a bracket e with a bevelled face f clamped to it by a screw Q, slides in the carrier and is pressed back by a weak spring g against a stop h. A coin inserted into a shoot c in the carrier rests on two stops j, Fig. 4, projecting from lugs k rigid with the guide C, and forms an abutment for the pointed end of the rod d. If the slide A is now pulled, the striking surface a engages the slanting face f and depresses the carrier, since the rod d cannot move forwardly, thereby allowing the slide to be pulled out. The movement of the carrier moves the coin off the stops j and, when the striking face a clears the bracket e, the coin drops. Testing coins.-By adjusting the position of the rod d relatively to the bracket. e, the slicle A is prevented from being released by coins that are too thin. Coins of too small diameter fall between the stops j. Discs of cardboard and soft metal are pierced by the pointed rod d and washers are impaled thereon.
Patent GB-580173-A (GB)
Title: Improvements in or relating to photographic processes
IPC: G03C1/035
Filed: 1943-03-15
Abstract: 580,173. Photographic processes. KODAK, Ltd., and STEVENS, G. W. W. March 15, 1943, No. 4222. [Class 98 (ii)] In the production of prints of various degrees of gradation on material comprising a mixture of a low-contrast silver chloride emulsion and a high-contrast silver bromide or bromiodide emulsion, the silver chloride may be removed after exposure so that only the bromide emulsion can be developed to give high contrast. Low contrast could be obtained by selective development of the chloride emulsion and medium contrast by simultaneous development of both emulsions. The chloride emulsion contains at least 90 per cent, preferably 95 or 98 per cent silver chloride, and the bromide emulsion at least 40 per cent, preferably 60 or 80 per cent, silver bromide, the remainder of the halide being iodide or chloride, or both. The silver chloride may be dissolved out with an aqueous solution of sodium sulphite or ammonia, the emulsions being mixed or the chloride emulsion coated over the bromide emulsion. If the solution is previously saturated with silver bromide, the emulsions may be coated in any order. Specification 516,514 is referred to.
Patent GB-1299070-A (GB)
Title: Nozzle assembly
IPC: B65B31/06
Filed: 1970-07-01
Abstract: 1299070 Valves W R GRACE & CO 1 July 1970 [25 July 1969] 4315/71 Divided out of 1299068 Heading F2V The description is similar to that of Specification 1,299,068 but the claims are directed to the construction of nozzle (82).
Patent GB-1443375-A (GB)
Title: Sensitive silver halide photographic materialp
IPC: G03C1/49
Filed: 1974-01-30
Abstract: 1443375 Photographic silver halide material for holography EASTMAN KODAK CO 30 Jan 1974 [30 Jan 1973] 04327/74 Headings G2C and G2X Photographic material for holography comprises a water-impermeable support, e.g. of polyester, carrying at least one layer of a hydrophobic cellulosic binder e.g. cellulose propionate, the hydrophobic layer or layers containing sensitive silver halide, a silver halide developing agent and a silver halide stabilizer precursor. After exposure, the material is processed by treatment with a solution of an amine, ammonia guanidine, KOH or LiOH or with ammonia gas or an amine vapour. Many amines are listed. Developing agents which may be used include methyl gallate and the stabilizer precursors include isothiourea derivatives e.g. isothioureidoacetic acid, 2-hydroxyethyl-isothiuronium chloride or 2-S-thiuronium ethane sulphonate, and ethylenedithia-αα<SP>1</SP>-dipropionic acid and #-(2- morpholino-ethylthio)-#-phenyl propiophenone. The sensitive silver halide is formed by precipitation from silver nitrate and a potassium or lithium halide in a methanol/dichloromethane solution of cellulose propionate.
Patent GB-255349-A (GB)
Title: Improvements in apparatus for delivering liquids in measured quantities by volume
IPC: B67D7/16
Filed: 1926-02-15
Abstract: 255,349. Soc. Anon. de Machines- Outils et Appareils Divers La Samoa. Dec. 10, 1925, [Convention date]. Fixed - chamber apparatus. - Relates to apparatus having a vertically adjustable overflow pipe arranged in a measuring chamber ritted with a safety cock rotating in one direction only and a registering device, and consists in providing a particular construction of connecting means between the adjustable tube, the cock and registering device to obviate fraud. Petrol is normally supplied to the glass chamber 2 through the adjustable overflow pipe 5 which communicates with the supply tank, by producing a vacuum in the chamber 2 by means of an electrically driven reversible pump acting through a suction pipe 6. A hand pump 34, pipe 35, passage 36 and pipe 38 supply liquid in an emergency. To the tube 5 is attached a rack 8 which may be moved by a pinion 9 and held in one of several positions hy a spring bolt 10 engaging one of several recesses 10<1>. The discharge cock comprises a tapered plug 11 having a recess 12. The plug may be turned in the clockwise direction, Fig. 1, only by means of a nut 13, Fig. 2, moved by a hand wheel and into which is screwed the shank 14 of the plug. To open the cock the nut it rotated and abutting against the thrust bearing 15 the plug is first moved slightly longitudinally away from its tapered recess and then rotates with the nut. When the rotation stops, the spring 16 causes the plunger to unscrew slightly from the nut and to bind in its seating. At each revolution the counter 17 is actuated from the plug 11 through gearing 18 - - 21, and a ratchet wheel 2. Upon the shank 24 of the plug cock is a slidable drum 23 which rotates with the plug and is provided with five teeth of decreasing length so that according to the longitudinal position of the drum the ratchet wheel 22 will be actuated by one to five teeth and the counter moved the corresponding number of units. On the controlling shaft 26 is mounted the pinion 9 in one with a worm which is engaged by the end of a rod 29 mounted on a shaft 31 which is rocked as the shaft 26 rotates. This causes rocking of the arm 32 which engaging the drum 23 pushes it axially against the influence of a spring 33. Formed on the drum 23 are five annular projections 41 which are interrupted for about one quarter of their circumference. The interrupted part is engaged by the spring part 42 when the cock is near the opening position. As soon as the cock is closed the pawl occupies one of the annular grooves so that the counter must be actuated correspondingly to the adjustment of the tube on opening the cock. Also the cock cannot be opened unless the tube is in one of its selected positions.
Patent GB-471896-A (GB)
Title: A new or improved closure or connecting means for tents and other fabric structures
IPC: E04H15/32
Filed: 1936-02-13
Abstract: 471,896. Hooks and eyes ; tent coverings &c. FRENCH & SONS, Ltd., T., and FRENCH, G. F. Feb. 13, 1936, No. 4328. [Class 43] [Also in Group X] A closure or connecting means for fabric structures such as loose covers for furniture, tents, &c. comprises a length of tape on each member to be connected, each tape having on its outer face a series of interwoven pockets, tubes, &c., the series on one tape carrying metal &c. hooks adapted to be engaged in the pockets &c. of the series on the other tape. To the hemmed edges of the members a, b, to be secured together, are stitched woven tapes c. e formed respectively with integrally woven pockets or tubes d and loops f. The pockets d receive metal hooks g, which can be hooked into the narrow tubular or core-like loops f. The warp threads of the pockets are interwoven with the main web of the tape, between the pockets. The loops f stand up above the surface of the tape and have a core of bunched warp threads which are surrounded by a tubular woven cover and lie behind the tape at the intermediate parts. The outer ends of the hooks are inserted in the pockets at the required intervals in a direction towards the edge of the fabric and the hook is then turned over as in Fig. 2. A depressed part g<1> of the hook resists withdrawal from the loop. Both tapes may be of the type shown at c, but with the pockets spaced at greater intervals ; or two tapes c may be used. Both tapes may be on the same face of the respective members. The tape e may be folded over the edge of the member b so that the loops lie along the folded edge. Adhesive may be used in addition to, or instead of, stitching, to secure the tapes to the members a and b. The loops may be centrally disposed, or nearer to, or at one edge. The pockets may be closed at one end, and may be of a different colour from the tape. The hooks may be permanently attached to their tape, as by stitching, before or after the tape is attached to the tent or other fabric. The hooks may be of flat section, a folded or extruded metal strip, or of wire, and formed with loops or openings to facilitate stitching. The hooks are usually of such length as to receive the loop or pocket without allowing endwise movement.