baber/WOPTO huggingface dataset:
Patent GB-1200615-A (GB)
Title: Flash apparatus with stroboscopic setting-up illumination for studio purposes
IPC: H05B41/32
Filed: 1967-10-04
Abstract: 1,200,615. Capacitor supply systems for photo-flash apparatus. D. A. MANNESMANN m.b.H. GES. FUR MULTIBLITZ GERATE DR. ING. 4 Oct., 1967 [10 Oct., 1966], No. 45185/67. Heading H2H. Photo-flash equipment is provided with means so that the flash tube is arranged to emit a series of flashes at a reduced intensity whilst focusing is carried out and subsequently to emit a single flash of high intensity when an exposure is required. A flash tube 4 can be energized from a capacitor 3 when low intensity flashes are required and from a capacitor 7 when an exposure is required. The capacitors 3, 7 are charged from an A.C. source by way of a transformer 1 and rectifier bridge 2, the transformer 1 also being associated with rectifier bridges 6, 6<SP>1</SP> which supply trigger systems 5, 10 respectively. When focusing is required a switch 5<SP>1</SP> is closed whereupon the system 5 produces a series of voltage pulses which are fed to the trigger electrode 4<SP>1</SP> of the flash tube 4 allowing the capacitor 3 to discharge into the tube thereby producing a series of flashes which, due to persistence of vision, appear to be continuous illumination. When an exposure is required a switch 10<SP>1</SP> is closed, the system 10 then producing a voltage pulse which is applied to the trigger electrode 9<SP>1</SP> of a gas-discharge tube 9. Capacitor 7 then discharges into the flash tube 4 producing a high intensity flash necessary for the exposure. A diode 8 is provided to prevent discharge of the capacitor 7 into the tube 4 in normal circumstances.
Patent GB-1188149-A (GB)
Title: Continuously Operating Extrusion Press
IPC: B29C48/92
Filed: 1967-10-04
Abstract: 1,188,149. Extruding. HYDRAULIK G.m.b.H. 4 Oct., 1967 [11 Feb., 1967], No. 45272/67. Heading B3P. A continuously operating extrusion press has a feed duct 6v, 6m, 6h leading to the extrusion chamber 11 and containing a check valve 9 and a floating auxiliary ram 3. During recharging of the container 2, extrusion is continued by moving the press head 4 towards the container whereby valve 9 closes and the auxiliary ram presses the extrusion material towards the extrusion chamber. The press is used for extruding a cable sheath between a mandrel 12 and die 13. In another embodiment, Fig. 2 (not shown), the press is used for extruding rod.
Patent GB-1065377-A (GB)
Title: Moulding of exothermic compositions in foundry moulds
IPC: B22C9/08
Filed: 1964-11-06
Abstract: 1,065,377. Mould and core materials. ARCHER-DANIELS-MIDLAND CO. Nov. 6, 1964 [Nov. 29, 1963], No. 45366/64. Heading B3F. An exothermic riser is formed in situ by inserting a tapered cylindrical plug into the cope whilst moulding, withdrawing the plug and replacing it with a slightly smaller plug, forming an insulating shoulder with moulding sand and filling the remainder of the cavity with green exothermic mixture to form the riser sleeve and then withdrawing the plug. The exothermic material is preferably as described and claimed in Specification 1,065,378 which is referred to.
Patent GB-1476443-A (GB)
Title: Device for gripping a rod-shaped object such as the shank  of a screwdriver tap or other tool
IPC: F16B7/04
Filed: 1974-10-21
Abstract: 1476443 Clamps MING-CHAO CHANG and CHUN-YA CHEN 21 Oct 1974 45408/74 Headings E2A and E2B A device for gripping a rod 5 and comprising relatively-rotatable coaxial-sleeves 1, 2 each having interior portions of non-circular section for holding a separate one of the ends of a spring 32 the inner spring ends being connected by an integral, coaxial spring-part of circular cross-section.
Patent GB-1177351-A (GB)
Title: Improvements in and relating to welding electrodes and the like
Inventor: BRIGGS JOHN COCKBAIN
IPC: B23K11/30
Filed: 1966-10-11
Abstract: 1,177,351. Welding by pressure; making electrodes. HIRST ELECTRIC INDUSTRIES Ltd. 11 Oct., 1967 [11 Oct., 1966], No. 45409/66. Headings B3A and B3R. [Also in Divisions C7 and H1] An electrode or electrical contact, e.g. for welding or switch gear respectively, comprises a current-carrying body portion of copper or copper alloy having a contacting surface of dispersion strengthened copper which, for the purpose of the Specification is copper, containing fine inert particles of a refractory disperse phase selected from oxides, nitrides and carbides. The disperse phase may be Al 2 O 3 . In addition, powders of hard metals such as Ni, W, Mo, or tungsten carbide may be mixed with the copper powder to form from 15% to 40% by weight of the mixture. Graphite may also be added to form from 2% to 20% by weight of the mixture. The tip may be made by cold compacting the copper powder with additives to form a billet, sintering in a controlled atmosphere, extruding, and cutting the tip from the extruded billet. Alternatively, the copper powder with additives may be cold compacted to the final desired shape of the tip and then sintered. Again, the tip may be formed by hot-pressing the powder with additives in a mould of, e.g. of graphite, heated electrically to a temperature below the melting- point of copper and being of the shape of the desired tip. The tip may be brazed to the body portion using silver solder or silver-copperphosphorus alloy and flux. Alternatively, the tip and body portion may be united by hotpressing using e.g. an " electrogas " technique or adapted butt-welding techniques.
Patent GB-994525-A (GB)
Title: Spark plugs
Inventor: WHY JOHN FREDERICK
IPC: H01T13/40
Filed: 1962-12-06
Abstract: 994,525. Sparking plugs. GENERAL MOTORS Ltd. Nov. 28, 1963 [Dec. 6, 1962], No. 46129/62. Heading F1B. A sparking plug includes elements which form an oscillatory circuit comprising a first capacitance connected between the plug voltage supply terminal and earth and formed by the spark plug centre electrode assembly the insulator and a metallic deposit on the external surface of a portion of the insulator, a second capacitance connected between the ignition spark gap electrodes, and a spark gap and inductance connected in series intermediate the sides of the two capacitances which are respectively connected to the upper and lower portions of the centre electrode assembly. Arranged in the axial bore 6 of the ceramic insulator 4, Fig. 1, is a spark gap element 8 comprising two metal end caps 9, 10 on opposite ends of a ceramic rod 11. The upper end portion of the insulator 4 is formed with a plurality of annular ribs 17 and between the lowermost rib 17 and the shouldered portion 15 of the insulator 4 the external surface of the latter is coated with a layer of silver as indicated by the reference Ag shown in the drawing an oscillatory circuit is formed by the inductance element constituted by the spring 12 (or in a modification a ferrite rod and wire coil) the spark gap element and the capacitance elements formed by the metallic deposit on the insulator 4 and by the construction and relative dimensions of the lower end portion of the insulator and the firing tip portion 3 of the centre electrode assembly 1 and the lower end portion of the plug shell 16. As shown in Fig. 6 the voltage multiplying effect may be increased by arranging several oscillatory circuits in cascade. The spark gaps S 1 , S 2 , S 3  will be progressively of increasing size. Other modifications are described.
Patent GB-1521767-A (GB)
Title: Analysis of chemical substances dissolved in biological fluids
IPC: G01N31/22
Filed: 1975-11-10
Abstract: 1521767 Indication for quantitative determination BECTON DICKINSON & CO 10 Nov 1975 [18 Dec 1974] 46372/75 Heading G1B An indication for measurement of the amount of a substance dissolved in a biological fluid comprises a support member including a flat strip, on separate zones of a surface of the strip a plurality of reagents for determination of the substance, at least two of the reagents providing indications at different concentrations of the substance, and optionally a control reagent, 9, Fig. 5. The indicator of Fig. 5 comprises polyethylene or polypropylene support member 32 laminated to reagent impregnated bibulous member 30, member 32 having apertures coinciding with the reagentimpregnated areas of member 32. The indicator of Fig. 7 comprises a transparent or translucent cellulose acetate, polyethylene or transparentized paper 72 carrying the reagents, the indication(s) given on contact with a biological fluid being read using a light projector and a reticule 75. The substance to be determined may be glucose.
Patent GB-1181830-A (GB)
Title: Securing a Tube in an Opening in a Metal Plate by Explosive Welding
Inventor: ROBINSON JAMES ALAN
IPC: B21D39/06
Filed: 1967-10-12
Abstract: 1,181,830. Welding by pressure; jointing by tube expanding. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 11 Sept., 1968 [12 Oct., 1967] No. 46629/67. Addition to 1,179,107. Headings B3J and B3R. [Also in Division F2] In securing a metal tube of substantially uniform circular cross-section in an opening in a metal plate, the opening having a greater diameter than the tube, the tube is positioned substantially coaxially in the opening by a spacing means not forming part of the tube or plate and an explosive charge is detonated within the tube to weld the tube to the plate. A massive metal plate 1 such as the tube plate of a steam condenser has a circular opening 2 therein and an axial portion of a metal tube 3 of circular section is positioned coaxially in the opening by a concentric ring 10 of soft material, e.g. rubber, polyethylene, polytetrafluoroethylene or synthetic rubber which is a sliding fit on the tube and has a tapered surface 11 engaging the rim of the opening 2. On the detonation of an explosive charge 5 in the tube to weld the tube to the opening the ring 10 is ejected and/or destroyed. Alternatively a circular section ring, metallic or non-metallic of circular or other crosssection, is employed between the tube and one end of the opening. In another embodiment 70/30 brass tube is welded to a 60/40 brass plate using a rectangular section jig secured to one side of the plate to engage the tube beyond the opening.
Patent GB-1410384-A (GB)
Title: Fluid sensing systems
IPC: G01N9/00
Filed: 1972-10-11
Abstract: 1410384 Vibration densitometer ITT INDUSTRIES INC 11 Oct 1972 [12 Oct 1971] 46784/72 Heading G1N [Also in Division H4] The densitometer is generally as described in Specification 1383952 (Division G1) but the  claims relate to the circuits of Figs. 8, 9 which ensure that the alternating voltage impressed on the driver coil 24<SP>1</SP> is level shifted and of sufficiently large average value to maintain the flow of current through the coil in one direction only, the coil being mounted on a magneto-strictive body 21<SP>1</SP>.
Patent GB-1060790-A (GB)
Title: Improvements in or relating to electric heating pads
IPC: H05B1/02
Filed: 1965-11-04
Abstract: 1,060,790. Protective systems for electric heating pads. VAN DER HEEM N.V. Nov. 4, 1965 [Nov. 17, 1964], No. 46793/65. Heading H2H. A safety circuit to disconnect a faulty electric heating pad having an element 1 controlled by a thermal switch 4, 5 comprises a circuit 10-16 forming a closed path fed by a transformer 3, 10 when contacts 4 are closed and which is supplied directly from the supply in series with the element when contacts 4 are open. The relay 14 interrupts the supply in the event of either a disconnection within the element 1 or a fault between the element and the conductive sheath 2. Smoothing of the half-wave A.C. is provided by a capacitor 16, which also shunts full wave A.C. from the relay in the event of a short circuit between the heater 1 and the sheath 2.
Patent GB-1020949-A (GB)
Title: Improvements in or relating to pulse counting circuits
Inventor: KEATING JOHN HENRY
IPC: H04Q3/42
Filed: 1964-11-18
Abstract: 1,020,949. Counters. AUTOMATIC TELEPHONE & ELECTRIC CO. Ltd. Nov. 18, 1964, No. 46869/64. Heading G4D. A counter, especially for use in an automatic telephone register, comprises four pairs of relays RW, RWA ... RZ, RZA, which operate to successive earth impulses at contact A1 in the manner shown in Fig. 2. The code is binary except that 7 and 11 are omitted. Accordingly at the end of each impulse either one or two pairs of relays are energized. The relays RW, RX, RY, RZ control the marking of two-out-of-five leads V, W, X, Y, Z. An eleventh impulse, which may be used by an operator only, marks the X, Y, Z leads but further impulses have no effect on the circuit.
Patent GB-1430431-A (GB)
Title: Releasable bundling strap
IPC: B65D63/12
Filed: 1973-10-08
Abstract: 1430431 A band clamp THOMAS & BETTS CORP 8 Oct 1973 [1 Nov 1972] 46876/73 Heading E2B A releasable bundling strap comprises an elongated strap portion 32 having teeth 38, 44 on opposite surfaces, a head member 62 having an aperture 64 partly defined by at least two oppositely extending projections 72, 80 for engaging the respective teeth of the strap portion when passed through the aperture, the head member being tiltable with respect to the strap member either to one position to release the strap portion or to another position to cause fastening engagement between the teeth and the projections. The head member may have internal side ribs for snap engaging between pairs of lateral projections adjacent end 34 of the strap portion to retain the strap portion on the head member or the head member may have a pair of internal buttons. The head member may have projections on flexible pawls which may be separated by a plane central portion. The projections may comprise metal plates. The head member may have a pair of projections which act as support members 222, 224 (Fig. 20, not shown) for the strap portions when the bundle is small, or may have an extension 250 (Fig. 23, not shown). The teeth may have various shapes, rectilinear, curved, herringbone or cylindrical. An end portion 36 of the strap portion may be tapered eccentrically for inserting between a notch in the end 34 and a projection on the head member.
Patent GB-1341509-A (GB)
Inventor: WIDMARK R M
IPC: G01N35/00
Filed: 1971-10-08
Abstract: 1341509 Separating lymphocytes from blood TECHNICON INSTRUMENTS CORP 8 Oct 1971 [12 Oct 1970] 46949/71 Heading A5B [Also in Divisions B2 and H1] Separation of lymphocytes from a blood sample may be effected by use of an aqueous suspension of magnetic particles having a basic polyamino acid on a polypeptide adsorbed thereon to provide a positive surface charge. The separating media may consist of other additives, e.g. a chelating agent such as ethylene diamine tetra-acetic acid, an anticoagulant or free Ca<SP>++</SP> and Mg<SP>++</SP> ions. The mixture may be incubated so as to cause the leucocytes to be tagged by the magnetic particles in the separating agent to the substantial exclusion of the lymphocytes, and passing thereafter the incubated mixture through any magnetic separating means.
Patent GB-1049998-A (GB)
Title: Evaporation mask manufacture
Inventor: JACKSON THOMAS MEIRION
IPC: B23K35/00
Filed: 1965-11-05
Abstract: 1,049,998. Making stencils. STANDARD TELEPHONES & CABLES Ltd. Nov. 5, 1965, No. 46985/65. Heading B3A. [Also in Division B6] A method of making a mask for use in patterned layer deposition by vacuum evaporation comprises the steps of bonding an unapertured sheet 4 to an apertured plate 1 and forming apertures 5, 6, 7 in the sheet within the apertures 2a, 2b, 2c, in the plate. As shown, a laminated stainless steel plate 1 is flat to within 25 microns pad the apertures 2a, 2b, 2c are formed by photo-etching, spark machining or milling. The stainless steel sheet 1 is bonded to the plate by silver brazing. The apertures 5, 6, 7 are made by spark machining.
Patent GB-979367-A (GB)
Title: Flexural pivot device
IPC: F16C11/12
Filed: 1963-11-29
Abstract: 979,367. Flexural pivot devices. BENDIX CORPORATION. Nov. 29, 1963 [Dec. 3, 1962], No. 47278/63. Heading E2F. A flexural pivot device comprises a stationary segment 11 and a rotatable segment 17 linked together by spring pairs 23, 25 and 27, 29 so that the segment 17 pivots about the common axis of the segments, the spring pairs being arranged at right angles and being spaced axially of the segments. Each spring pair comprises two parallel, spaced, facing flat blades which diverge from each other at one end only. The parallel ends of the spring pair 23, 25 are welded to an arcuate projection 15 of the stationary element 11 and the diverging ends of the pair are welded to a base section 19 of the rotatable element 17. The parallel ends of the spring pair 27, 29 are welded to a base section 13 of the stationary element 11 and the diverging ends of the pair are welded to an arcuate projection 21 of the rotatable element 17. During rotation of the member 17 relative to the member 11, the springs 23, 25 contact each other at their centres, and similarly with the springs 27, 29. Clockwise rotation is limited by the abutment of segment edge 35 with edge 36, but edge 37 does not abut edge 39, and anticlockwise rotation is limited by the abutment of edge 31 with edge 33.
Patent GB-1055699-A (GB)
Title: A missile system
Inventor: WALLIN JAN ERIK ING
IPC: F42C15/40
Filed: 1964-11-20
Abstract: 1,055,699. Fuzes for powered missiles. BOFORS A.B. Nov. 20, 1964 [Nov. 21, 1963], No. 47418/64. Heading F3A. [Also in Division H3] A missile system comprises a powered missile having a motor actuated by an igniter 7 (Fig. 1) and a gyroscope started by an igniter 6, operated from an activatable battery 1, the latter being energized from a remote source 4, and time - delay means 8 actuating a relay 9 to ensure that the gyroscope has reached its maximum speed of rotation before the motor is started. The time-delay means comprises a transistor circuit (see Division H3) and is arranged to prevent operation of relay 9 if the battery voltage is too low for correct operation of various devices in the missile.
Patent GB-1094479-A (GB)
Title: Improvements relating to electrical signalling and control apparatus
Inventor: WHEATLEY WILLIAM
IPC: B66B19/06
Filed: 1963-12-03
Abstract: 1,094,479. Selective signalling. AVON ELECTRICAL (HEANOK) Ltd. March 2, 1965 [Dec. 3, 1963; Aug. 20, 1964], Nos. 47573/63 and 33991/64. Heading G4H. In a signalling system particularly adapted for use with a long conveyer in a coal mine the conveyer can be stopped from any one of plurality remote points arranged along its length and any particular remote point that does stop the conveyer is signalled to, and indicated at, a central station. Each remote point includes a resistor all of which are series-connected with the central station. When a remote point is used to stop the conveyer contacts are arranged to short out the resistors further down the line. The result is that the impedance seen by the central station changes to an amount indicative of the particular remote point actuated. The fact that a change has taken place is indicated at the central station, and it may also cause an alarm to sound, and also the particular remote point actuated is ascertained and indicated by a self-balancing bridge arrangement. The system also incorporates means for transmitting speech between the remote points and the central station and the central station has means to detect any earth faults or shorts in the multi-core cable connecting the remote points. The whole system is designed on a fail-safe basis and incorporates the usual safety requirements of flame-proof casings for some parts and intrinsically safe power supplies for other parts. Detailed circuits are given employing conventional semi-conductor and electromechanical switching techniques.
Patent GB-1498963-A (GB)
Title: Structural members
IPC: A47B9/04
Filed: 1975-08-28
Abstract: 1498963 Overbed tables METAL FABRICATORS Ltd 28 Aug 1975 [4 Nov 1974] 47666/74 Heading A4H A telescopic structural member 3, e.g. for supporting a table top 4 on a base 1, comprises an inner slider 5 comprising at least two spaced-apart parallel tubes 8 rigidly connected by means 10 intermediate their ends and extending between their mutually facing surfaces, and slidably housed within an elongate outer casing 6 having spacedapart wall portions 12 substantially in sliding contact with respective outward facing parts 13 of the tubes 8, the portions 12 and parts 13 being matchingly shaped. The tubes 8 have a square, circular or triangular cross-section, and the parts of casing 6 joining wall portions 12 comprise sides 14, perforated strips or spaced ties. Tubes 8 are connected by spaced ties 10. The table top height is variable by a screw and nut mechanism 15, 16 operable through bevel pinions 17, 18 by a manually rotatable drive shaft 19. A threaded portion 22 of the shaft non-rotatably carries a nut 23 that is slidable between end stops 25 to limit movement of top 4. Alternatively the top 4 can be adjusted by a rack and pinion.
Patent GB-1045200-A (GB)
Title: Polyurethane elastomers
Inventor: HEYDKAMP WOLFGANG
IPC: C08G18/83
Filed: 1964-11-24
Abstract: Cross-linked polyurethane elastomers containing urea groups are prepared by spraying a mixture comprising a linear polymer containing urethane groups and terminal aromatic primary -NH2 groups and of M.W. 800-3000, an aromatic primary diamine of M.W. below 500 and an organic diisocyanate present in an excess calculated on the sum of the end groups of the mixture of amino compounds on to a foundation and allowing the reaction to be completed on the foundation.  The linear polymer of M.W. 800-3000 may be prepared by reaction of a nitroaryl isocyanate with a polyhydroxyl compound followed by catalytic reduction of the nitro groups; or alternatively by reacting 1 mol of aromatic diisocyanate per hydroxyl group of a polyhydroxyl compound and converting the -NCO end groups with HCOOH to formylamide groups which can then be hydrolysed with acids or alkali metal hydroxides to -NH2 groups.  In Example (1) 1 mol of polypropylene glycol was reacted with 2 mols of p-nitrophenyl isocyanate in chlorobenzene and the product hydrogenated in the presence of Raney nickel.  The hydrogenated product was mixed with 3:31 - dichloro - 4:41 - diaminodiphenylmethane in a spray apparatus and the mixture so formed continuously mixed in the nozzle of said apparatus with diphenylmethane 4,41-diisocyanate and sprayed.  In Example (3) the hydrogenated product prepared as in Example (1) was mixed 1:5-naphthylene diamine and then with hexamethylene 1:6-diisocyanate.ALSO:Cross linked polyurethane elastomers containing urea groups are prepared by spraying a mixture of a linear poly addition or condensation product containing urethane groups and terminal aromatic -NH2 groups and having a M.W. of 800-3000, an aromatic primary diamine of M.W. below 500 and an organic diisocyanate present in an excess calculated on the sum of the end groups of the mixture of amino compounds on to a foundation and allowing the reaction of the components to be completed on the foundation.  The spraying may be done from nozzles.  Surfaces mentioned are suitable for coating on leather, metal, paper, wood, solid and porous synthetic resins, rubber and woven fabrics. In examples the reaction mixture was sprayed on to (2) a vertical wall and (3) a metal plate.
Patent GB-1394038-A (GB)
Title: Pyridine derivatives and their use in the treatment of coccidiosis
IPC: A23K1/16
Filed: 1973-10-12
Abstract: 1394038 Anticoccidial compositions SANKYO CO Ltd 12 Oct 1973 [20 Oct 1972 11 April 1973] 47836/73 Heading A5B [Also in Division C2] Coccidiosis in domestic animals is controlled by compounds of the formula: where R<SP>1</SP> and R<SP>2</SP> are H, alkyl, aralkyl, aliphatic, cycloaliphatic, aromatic or heterocyclic acyl, alkoxycarbonyl, aralkoxycarbonyl, aryloxycarbonyl, N-substituted carbamoyl, N- substituted thiocarbamoyl or phosphono.