baber/WOPTO huggingface dataset:
Patent GB-259914-A (GB)
Title: Improvements in and relating to internal combustion engines with oppositely-moving free pistons
IPC: F02B71/00
Filed: 1926-10-18
Abstract: 259,914. Junkers, H. Oct. 19, 1925, [Convention date]. Actuating pumps by fluid-pressure motors.-In a direct acting air compressor having oppositely-moving pistons 2, 3, which are not connected to a crank shaft or its equivalent, synchronous movement of the pistons is assured by rotary means. The pistons 2, 3 are formed with racks 10, 11 engaging pinions 12, 13 fixed on shafts 14, 15; the shafts are connected together through spur or bevel gearing. In a modification, the racks are formed with inclined teeth 41, 42, Fig. 4, which engage with worm wheels 43, 44 on a single shaft 45. The rack teeth are made of a size to fill the cylinder as far as possible. By modification of the connecting gear the pistons may move at different speeds. The compressor cylinders 8, 9 are of the same diameter as the. power cylinder. The liquid fuel pump is driven from shafts carrying connecting gear wheels. Air for the charge is supplied by a pump 30 through the reservoir 32.
Patent GB-479016-A (GB)
Title: Improvements relating to method and machine for producing coated can bodies
IPC: B05B13/06
Filed: 1937-09-28
Abstract: The soldered side seam of a beer can, Fig. 15, is sprayed internally with a covering lacquer.  An angularly adjustable spraying nozzle 62 located within horn bars allows the can to be fed over it, the spray comprising a lacquer delivery orifice 83 surrounded by an annular compressed - air orifice 82, the layer orifice being closable by a needle 88 when a can has not arrived in a spraying position as follows.  A feeler end 146 of an arm 101 moves into the space left by a missing can body whereupon the link 10 actuates a slide valve 105 to align grooves supplying compressed air to an activating piston 135, Fig. 8, the spring-yielding stem 141 of which pushes in the head 92 of the spray needle valve 88 and so cuts off the lacquer supply. When another can body comes into position <PICT:0479016/III/1> <PICT:0479016/III/2> <PICT:0479016/III/3> <PICT:0479016/III/4> <PICT:0479016/III/5> it moves the tapered feeler end 146 of arm 101 to reset valve 105 and open the lacquer spray nozzle.  Fig. 16 shows one type of side seam in which the coating 87 covers the solder line 55 and also overlaps the preliminary coating on the blank.
Patent GB-1084628-A (GB)
Title: Improvements in and relating to screw and nut gearing
IPC: F16H25/24
Filed: 1966-06-13
Abstract: 1,084,628. Screw-and-nut gearing. CONTRAVES A.G. June 13, 1966 [June 16, 1965], No. 26221/66. Heading F2Q. Screw-and-nut gearing comprises a central screw member 1 which is engaged by circular beads 210 on three circumferentially spaced rollers 21 rotatably mounted on axles carried by a rotor 2. The roller axes are arranged parallel to each other and inclined at an angle #, Fig. 3 (not shown), to the rotor axis. The rollers 21 are mounted by means of ball bearings 32 on adjustable eccentric portions 31 of trunnions 30 which are adjustably secured in cylindrical bores of the rotor 2 by radial screws 37.
Patent GB-645584-A (GB)
Title: Improvements in chessmen
IPC: A63F3/02
Filed: 1948-10-08
Abstract: 645,584. Chessmen. THOMAS, H. B. Oct. 8, 1948, Nos. 26231 and 31468. [Class 132 (ii)] [Also in Group XVII] A chessman comprises a silhouette 11 on a right-angled flange 12 and having parts 13 bent round to form clips to accommodate an upright 16 of a base part 15 which can be inserted one way to act as a base and which can be reversed for packing, the foot 17 then lying against the flange 12. A set of such pieces may be nested in a square box divided diagonally and accommodating in the lid a flexible checkerboard.
Patent GB-1384096-A (GB)
Title: Diaphragm switch assembly
IPC: G06K7/02
Filed: 1972-06-06
Abstract: 1384096 Punched tape reader INTERNATIONAL BUSINESS MACHINES CORP 6 June 1972 [25 June 1971] 26262/72 Heading G4M [Also in Division H1] In a punched card reader in which air is blown upwards through a row of holes (44), Fig. 2 (not shown), for selective passage to holes 66a-66x, Fig. 5, associated with diaphragm actuated electric switches (not shown) the holes 66a-66x have connecting grooves 72a-72x disposed forwardly and rearwardly in the upper face of the base-plate 52 to distribute the air to outlets (76a-76x), Fig. 7 (not shown), disposed in four rows spaced according to the required spacing of the centres of the diaphragms. Longitudinal grooves 68 are arranged on the underside of the plate 52 to reduce cross-talk and permit the diaphragms to vent to atmosphere through the holes 66a-66x when covered by the punched cards. Similar longitudinal grooves (46), Fig. 2 (not shown), are arranged to correspond with each blow hole (44) whereby air from the supply can escape to atmosphere when all the holes (44) are covered by a card.
Patent GB-1131878-A (GB)
Title: Transporting means for attachment to an agricultural tractor
IPC: A01C3/04
Filed: 1966-06-14
Abstract: 1,131,878. Tractor attachments for lifting loads. D. R. PERRY. 13 Sept., 1967 [14 June, 1966], No. 26465/66. Heading B8H. An attachment for an agricultural tractor for gathering up and transporting manure or loose crops comprises a pair of pivoted arms 2, of L- shape in plan view, which, when closed, form with a fixed base 3 and an upstanding back 4 an open-topped box. The arms are pivoted about axes 9 by an hydraulic ram 16 and linkages 12, 13, 14 to a closed position and are opened by a spring 17. The arms have bottom plates 24 which slide over the platform 3 during opening and closing movements. The device is mounted on the front or rear loader arms of the tractor by brackets 6, 7.
Patent GB-606527-A (GB)
Title: Improvements in or relating to catamenial appliances
IPC: A61F13/20
Filed: 1945-10-10
Abstract: 606,527. Catamenial tampons. MORIAME. F., and THIRION, W. Oct. 10, 1945, No. 26504. Convention date, Oct. 23, 1942. [Class 81(ii)] A catamenial tampon or pad a for internal use, a portion c of which fits loosely into the front portion of a detachable tubular handle d of substantially uniform crosssection, is of uniform cross-section for the greater portion of its length and is provided towards its rear end with a shoulder freely resting on the front edge of the handle and is retained against this edge by a string or cord e passing through the handle and fixed under tension to the rear end of the handle in an easily detachable manner, e.g. in a notch f. The shoulder may cover the edge of the handle and have substantially the same external diameter. The handle may be of cardboard or stiff paper and the pad of absorbent material, e.g. wadding compressed to shape. The pad may be formed from a strip of absorbent material the fibres of which are substantially longitudinal, the strip being folded in two across its length and the ends sewn together by transverse stitching which may be a continuation of the cord. Alternatively the cord may be attached to a net enclosing the pad, which may be protected from soiling by a removable cap.
Patent GB-835425-A (GB)
Title: Tissue preservation
IPC: A61K35/32
Filed: 1956-08-30
Abstract: Tissue removed under sterile conditions from
Patent GB-1402722-A (GB)
Title: Lable printing and applying machine
IPC: B65C11/02
Filed: 1972-06-07
Abstract: 1402722 Applying labels MONARCH MARKING SYSTEMS Inc 7 June 1972 [23 June 1971 8 Dec 1971 (3)] 26627/72 Heading B8F [Also in Division B6] A label printing and applying device comprises a handle 232 to which an operating lever 235 is pivoted, the operating lever being formed with a gear section 241 engaging a gear 243 which both meshes with a rack whereby a print head 219 is driven against a platen 217 and is couplable to a label-supporting-strip feed wheel 244. On clockwise movement of the lever 235 the print head is displaced to imprint a label 36 and an anti-clockwise return movement powered by a spring 238, the print head is returned and gear 243 is coupled by ratchet and pawl mechanism to the feed wheel 244. The label strip, comprising a supporting strip 32 and labels 36 adhered thereto is led round a peel edge 218, the supporting strip thereafter engaging the feed wheel 244. Printed labels can be applied by a roller 253 or by a plunger or presser foot. The label strip may be as described and claimed in Specifications 1,402,725, 1,402,727 and 1,402,728.
Patent GB-961939-A (GB)
Title: Improvements in or relating to cathode ray tubes
IPC: H01J29/80
Filed: 1960-08-02
Abstract: 961,939. Cathode-ray tubes. TELEFUNKEN A.G. Aug. 2, 1960 [July 30, 1959], No. 26646/60. Drawings to Specification. Heading H1D. In a post-deflection-acceleration cathode-ray tube with an electrostatic deflection system the post-deflection-accelerating field set up by a helical conductor conforming to the shape of the envelope penetrates the deflecting field but is arranged to be, in the absence of the deflecting field, homogeneous in the axial direction, i.e. has a uniform potential gradient along the tube axis, in this region. The helical conductor is a coating of resistance material of uniform resistance and constant pitch extending into the tube neck where the deflecting system is wholly contained within the tube neck, or of increasing resistance or decreasing pitch adjacent and towards the deflecting system, being entirely confined to the bulbous portion of the tube envelope, where the deflecting system extends into the bulbous portion.
Patent GB-1056622-A (GB)
Title: Primary cells
IPC: H01M6/04
Filed: 1965-06-23
Abstract: 1,056,622. Electric cells. MIFALEI YAM HAMELAH, B. M., and M. R. BLOCH. June 23, 1965 [June 24, 1964], No. 26660/65. Heading H1B. A primary cell has an aqueous solution of zinc halide or cadmium halide containing halogen, an electrode inert to the electrolyte, a zinc or cadmium electrode and a halogen permeable container containing a source of halogen in contact with the electrolyte for replenishing the halogen in the electrolyte. In the embodiment a zinc can 1 surrounds a layer of asbestos 3 soaked with zinc bromide solution and a perforated graphite electrode 2. The graphite electrode 2 shields the halogen permeable container 4 from the zinc electrode. The container is made of polythene or fluorinated hydrocarbons and contains zinc polybromide solution. A syphon 6 is provided connected between the electrolyte container and container 4 so that drop in pressure of the halogen supply is compensated. The shelf-life of the cell is improved by including a Mn<SP>+</SP> + salt in the electrolyte. This forms a gel of Mn(OH) 4  which blocks the halogen container when on open circuit, but is dispersed when the circuit is closed. The halogen in the container may be in solution, adsorbed on a solid adsorbent, or in the form of a decomposable complex. The solution may be carbon tetrachloride, carbon tetrabromide, or other halogenated hydrocarbons. Adsorbents may be silica gel, active charcoal or tetramethyl ammonium chloride.
Patent GB-644437-A (GB)
Title: Improvements in electrical generator systems for effecting protection from excessiveoutput voltage due to a fault in the generator or regulator
IPC: H02H7/06
Filed: 1947-10-03
Abstract: 644,437. Protective cut-out arrangements. BENDIX AVIATION CORPORATION. Oct. 3, 1947, No. 26698. Convention date, Oct. 4, 1946. Addition to 641,671. [Class 38(v)] In a system similar to that of the parent Specification in which D.C. generators supply a common load, each generator has a circuit-breaker, which in the event of a fault causing an increased field current due to an increased voltage being applied across the field winding such as on failure of the voltage regulator, opens the field circuit and disconnects the voltage regulator, its operating winding and the main " cut-out" together with its control relay and winding. The generators 1, 2 supplying a common load 13 have shunt field windings 3, 4 each controlled by a carbon pile regulator having a carbon pile 23 actuated by a winding 32 in shunt with the generator. Each circuit-breaker has switch members 20, 38, 26 which are normally held closed by a latch 54 against the compression of a spring 53. This latch may be disengaged by an electromagnet having a winding 30 in shunt with the field winding. In the event of a fault as above, the increased voltage across the winding 30 causes the tripping of the circuit-breaker, which at members 20, 26 opens the field circuit and isolates the carbon pile 23 and the latch-winding 30, and at member 38 opens the circuit of the regulator winding 32 and that of the relay 45 with its winding 48, which de-energizes the "cut-out" " winding 16 causing the " cutout " 14 to open and isolate the generator from the load circuit and the other generators. Specification 625,825, [Group XXXV], is referred to.
Patent GB-680269-A (GB)
Title: O-ring seal
Inventor: WALTON GEORGE MARSH
IPC: F16J15/06
Filed: 1950-11-02
Abstract: 680,269. Filters. AIR-MAZE CORPORATION. Nov. 2, 1950, No. 26790/50. Class 46 [Also in Group XXVI] In a sealing joint. between a 'pair of sleeves 10a, 13a comprising part of the housing of a filter containing a multiplicity of circular leaves on an outlet tube, in which a resilient O-ring 21 is compressed between two radial annular shoulders, one on each sleeve, one shoulder 17 extends radially outwards at right angles to the axis of its associated sleeve 13a and the other shoulder has a portion 18 parallel to the one shoulder 17 adjacent to its associated sleeve 10a and a portion 19 inclined radially outward and toward the one shoulder 17. The inclined portion 19 makes an angle of about 45 degrees with the parallel portion 18 and the O-ring 21 has a cross-sectional area less than, and preferably 75 to 95 per cent of, the cross-sectional area of the space formed between the two shoulders.
Patent GB-963238-A (GB)
Title: A new or improved gearbox
Inventor: ALCOCK JOHN FREDERICK
IPC: F16H47/07
Filed: 1962-07-12
Abstract: 963,238. Change-speed gear. HUNSLET (HOLDINGS) Ltd. June 26, 1963 [July 12, 1962], No. 26806/62. Addition to 927,504. Headings F2C and F2D. A change-speed transmission comprising hydrodynamic torque converters 17, 18, 19 with their inputs geared at the same ratio to a common input shaft 10 and their outputs through pinion pairs of differing ratios to a common output shaft 20, as in the parent Specification, is modified by the provision on the two lower-ratio torque converters 18, 19 of means such as centrifugal valves, Fig. 2 (not shown), operating as the speed rises to empty the converters 19, 18 in succession, so that at top speed only the high-ratio converter 17 is effective. Alternatively, by-pass valvecontrolled compressed air may be used to empty the converters. As a further modification the two higher-ratio converters 17, 18 may additionally be provided with centrifugal valves, Fig. 3 (not shown), which are normally open but close at predetermined speeds slightly below the operating speeds of the first pair of valves. With this arrangement only converter 19 is effective at starting and with the first gear train 25, 26 operative, converter 18 then being engaged to share the load torque during the change-over to second gear 23, 24 and similarly with converters 17, 18 during the change-over from second to high gear 21, 22, after which converter 17 only is effective.
Patent GB-150562-A (GB)
Title: Improvements in the manufacture of hollow metal bars, wires and the like
IPC: B21C37/06
Filed: 1919-11-01
Abstract: 150,562. Mills, S. J. Nov. 1, 1919 Pipes and tubes.-Hollow metal bars, wires, or tubes are formed with one or more holes concentric or eccentric with the external surface of the bar, and each having a smooth and uniform capillary or other bore, by drilling or otherwise forming the initial holes in the billet, and after cleaning, filling them with clean well-fitting mandrels or cores, and forging, rolling, or drawing to reduce the size of the hole or holes. The billet and mandrels are then separated by reeling or axial rolling, and the rolling or like process repeated as often as necessary, the cores or mandrels being coated with silicate or like inert lubricating material if desired. The smooth clean holes thus formed may be further reduced by drawing.
Patent GB-602054-A (GB)
Title: Improvements in or relating to machines for forming clips from strip material
IPC: B21F33/04
Filed: 1945-10-15
Abstract: 602,054. Making metal fabrics. STEVENS, A. H. (Rymland, M. J.). Oct. 15, 1945, No. 26878. [Class 83 (iv)] [Also in Group XIV] In a machine for forming clips and securing mattress springs, a strip is sheared, bent to U-shape and closed about springs by electricallyoperated mechanism. Strip 29 is fed from a. reel by feed rolls 34, 35 through a guide 36 about a plunger 38. Lifting of the plunger 38 by an electromagnet A shears the strip and bends it to U-shape about springs 42 on a table 20. A bender 40 pivoted on a pin 45 is swung by toggles 59, 60 operated by an electromagnet B to bend one leg about the springs and another bender 41 is then swung about a pivot 80 by toggles 84 operated by an electromagnet C to bend the second leg. Feed. The roll 35 is pressed by springs 110 against a roll 34 rotated through a two-speed gearing from an electric motor M. Pins 136 on a gear-wheel 134 operate a switch S4 to stop the motor M after a predetermined angle of rotation. By using each of the gear ratios, the length of strip fed may be varied. The gear may be put into neutral position to free the roll 34 which is then rotated by hand-crank and mutilated pinion for starting a fresh strip. Actuation. Depression of a foot switch energizes an adjustable time delay relay through a rectifier, Fig. 13 (not shown), and energizes solenoid A to raise plunger 38. An abutment 77 closes a switch S2 to energize solenoid B actuating bender 40. An abutment opens a switch S3 controlling solenoid C operating the bender 41. After operation of the bender 40 the relay opens the circuit to de-energize the solenoid B.
Patent GB-708049-A (GB)
Title: Improvements in or relating to articles consisting essentially of a polymer of tetrafluoroethylene and to the manufacture thereof
Inventor: SQUIR ALAN THOMAS BARRINGTON P
IPC: B29C48/08
Filed: 1950-01-26
Abstract: Thin sheet-like articles of polytetrafluoroethylene &c. are produced by making a plurality of preforms simultaneously and then sintering the preforms.  The preforms are made by forming in a mould a plurality of superposed article-forming charges of dry moulding powder, which charges are separated from one another by flexible separator sheets and have a total thickness such that when moulding pressure is applied to them the moulding pressure is uniformly applied throughout the charges.  The articles may be sheets, discs, diaphragms or gaskets, and may be reinforced by one or more layers of metal.  Example: Moulding powder is screened to remove fibrous particles, a charge thereof sufficient for one article is spread evenly on the bottom of the mould, the charge is consolidated by a pressure of 6 tons per square inch for 1 minute at room temperature (or down to 500 pounds for longer time and/or higher temperature), a separator of linen tracing paper is placed over the consolidated charge, another charge is put in and consolidated and covered with a separator, and so on, the number of charges being so chosen that the thickness of the articles is at least 0.15 inch.  The whole assembly is then pressed at 6 tons per square inch for 10 minutes at room temperature, the pressure being gradually built up over 2 minutes (or down to 500 pounds for longer time and/or higher temperature).  The preforms are removed from the mould, separated, sintered at increasing temperatures to 390 DEG C., and cooled rapidly to below 327 DEG C. either by placing them between cold metal plates or by quenching in cold water.  Moulding reinforced articles:-The reinforcement is one or more layers of metal such as gauze or wires. The metal should be one that is not attacked by P.T.F.E., e.g. stainless steel or phosphor bronze coated with chromium.  When there is more than one layer of reinforcement the wires in one layer preferably extend in different directions from the wires of the adjacent layer or layers.  A reinforcing layer may be only partly embedded in the P.T.F.E., so that free metal projects from the latter, this giving a rough surface useful when the article is to be clamped between a pair of members.  Each charge of powder is divided into two portions.  One portion is spread evenly in the mould, then the reinforcement is put in, then the other portion, then a separator, then another charge, and so on, the subsequent procedure being as above.  Laminated articles:-Alternate layers of powder and stainless steel gauze discs are inserted in the mould seriation, subjected to gradually-applied pressure up to 6 tons per square inch at 20 DEG C. (or at 200 DEG C.) sintered and quenched.  The Provisional Specification states that the pressure may be applied through the intermediary of a rubber sheet.
Patent GB-1118557-A (GB)
Title: A method of and apparatus for non-destructive testing of discharge lamps
IPC: H01J9/42
Filed: 1966-06-16
Abstract: 1,118,557. Testing discharge tubes. TESLA NARODNI PODNIK. June 16, 1966 [June 18, 1965; Oct. 25, 1965], No.26958/66. Heading G1U. Properties of the filaments of discharge tubes are assessed by determining the transition point on the characteristic where emission changes from that due to impinging ions, to thermionic emission. In one embodiment, Fig. 3 the temperature of the filament 8 is continuously measured by a bridge 2 and the supply voltage between anode and cathode is monitored by a voltmeter 41. The two quantities are then fed to a cathode ray tube 6 to plot the temperature/voltage characteristic. For measuring the properties of A. C. discharge lamps duplicate equipment is provided for each filament Fig. 4 (not shown).
Patent GB-768036-A (GB)
Title: Improvements in or relating to optical beam splitting or combining systems
Inventor: KELLY DONALD HORTON
IPC: G02B5/28
Filed: 1954-09-17
Abstract: 768,036. Optical systems. TECHNICOLOR MOTION PICTURE CORPORATION. Sept. 17, 1954. No. 27004/54. Addition to 716,332. Class 97(1) For use particularly in colour photography an optical system adapted to produce a real image is combined with a transparent body carrying a wedge-shaped interference coating the thickness of the layers of which differs. across the length of the coating, from proportionality to the reciprocal of the cosmic of the angle of refraction of a chief ray incident thereon so that the wavelength of maximum reflection of a chief ray incident on one end of the coating differs from that of a chief ray incident at the other end of the coating but the cut-off wavelengths at one end of the reflected spectral band are substantially the same for both rays whereby a spectral band is reflected in which the energy is substantially uniformly distributed and the cut-off at one end thereof is sharp or steep. The invention is described as applied to the colour photograph systems shown in Figs. 7, 8 and 9 of the parent Specification. Fig. 3 shows two chief rays n, n from the exit pupil E of the image forming system incident on a beam-splitting interference coating Cx having a gradient greater than k/crs # where # is the angle of refraction of the oblique ray n. The resulting reflective curves are shown in Fig. 3 the curve crossing on X to give a sharp cut-off on the shortwave end of the reflected band. By suitable filters chosen having regard to the spectral sensitivity of the photographic material the spectral band employed in photography may be limited to that between wavelength l and h where the hatched areas shown are of equal area and the photographic effect will be uniform over the area of the photograph. The invention may be applied to a system employing two concentric interference layers one reflecting blue light and the other red light and both transmitting green light. Specification 666.160 also is referred to.