baber/WOPTO huggingface dataset:
Patent GB-1468006-A (GB)
Title: Vacuum cleaner nozzles
IPC: A47L9/06
Filed: 1975-12-08
Abstract: 1468006 Vacuum cleaners H WESSEL 8 Dec 1975 [24 Jan 1975] 50207/75 Heading A4F In a vacuum cleaner nozzle having a brush 5 which can be adjusted to project from or be retracted into a housing 1 by cam means, such as a rotatable cam 8, operated by a pedal 6, the cam has respective symbols such as 10 to indicate the positions of the brush and a window 9 is provided in the housing through which a symbol denoting the brush position is visible.
Patent GB-1022729-A (GB)
Title: Tape cable connector
IPC: H01R12/59
Filed: 1963-12-20
Abstract: 1,022,729. Two-part couplings. STANDARD TELEPHONES & CABLES Ltd. Dec. 20, 1963 [Dec. 26, 1962], No. 50405/63. Heading H2E. A flexible tape cable is terminated by a resilient insulating beading the cross-section of which includes at least one channel which can be interlocked with a channel of a similar beading attached to a second tape cable so that the strip line conductors of the two cables, which extend into their respective beadings, are electrically connected. The individual connections are completed sequentially by means of a zipper process. In Fig. 3 the zipper comprises a pair of connector beads 30 and 31 in the form of interlocking plastic channels which carry conductors 33 and which are forced together by a wedge slide. The two tape cables are secured against lateral motion by snap fasteners, pins or staples. The snap fastener, if asymmetrically placed, may serve as an indexing means. To increase contact pressure, a metal zipper with separate teeth may be used which has insulating teeth separating adjacent circuits. Shielding may be provided by having earthed teeth adjacent current-carrying zipper teeth.
Patent GB-999707-A (GB)
Title: Improvements in or relating to tedders
IPC: A01D78/02
Filed: 1962-08-23
Abstract: The subject-matter of this Specification is included in Specification 999,701 but the claims differ.  Specifications 999,702, 999,703, 999,704 and 999,705 also are referred to.  Reference has been directed by the Comptroller to Specification 937,905.
Patent GB-1207240-A (GB)
Title: Improvements in or relating to e.h.t. component assemblies
IPC: H02M7/10
Filed: 1968-10-24
Abstract: 1,207,240. Potting electrical components. SIEMENS A.G. 24 Oct., 1968 [25 Oct., 1967], No. 50458/68. Heading B5A. [Also in Division H2] An E.H.T. voltage multiplier unit assembly, e.g. for colour T.V., comprises a plurality of electrical components suitably interconnected, arranged in a single plane and embedded in epoxy resin to form a mechanically stable latticeshaped unit as shown in Fig. 1. Capacitors 2 are embedded in aligned side arms while rectifiers 1 and 11 are embedded in perpendicular and diagonal arms respectively, of the lattice. Mounting lugs 8 and 9 are provided. During manufacture the components are loosely assembled and wired up to form an open lattice arrangement and laid in a mould, e.g. of polyethylene, which does not bond to the potting resin. The mould has wedge-shaped centering ribs, the edges of which engage high breakdown strength surfaces of the components and correspond to the notches 4 shown in Fig. 1. There may be three locating ribs per component. The input to the multiplier is derived from the line output transformer of the T.V. set.
Patent GB-1091530-A (GB)
Title: Electric motor control apparatus
IPC: H04N5/04
Filed: 1964-12-14
Abstract: 1,091,530. Control of A.C. motors; converting. AMPEX CORPORATION. Dec. 14, 1964 [Jan. 16, 1964], No. 50756/64. Headings H2F and H2J. The speed of a multi-phase synchronous motor 14 e.g. driving scanning heads in a video tape machine, is controlled by variation of the frequency of a single phase oscillator 16 in response to a signal voltage 12. The square wave output of the oscillator is differentiated and the resulting pulses used to trigger AND gates 20 . . . 30 arranged to sequentially switch bi-stable transistor circuits B1, B2, B3 to produce a multi-phase output which is amplified and applied to the motor windings. The amplifiers may comprise simple on/off devices switching D.C. to the windings which thus receive square wave voltages but it is stated that the impedance of the windings results in sinusoidal current. An auxiliary AND gate 38 is arranged to initiate proper sequencing should all the bi-stable circuits initially be in the same condition.
Patent GB-1444995-A (GB)
Title: Tyre chains
IPC: B60C27/12
Filed: 1973-11-02
Abstract: 1444995 Tyre chains EISEN-UND DRAHTWERK ERLAU AG 2 Nov 1973 [3 Nov 1972] 50918/73 Heading B7C A tyre chain comprising a ground engaging part 1 connected between two edge portions 6, 7 includes a flexible tensioning tie 41 connected at one end to the outboard edge portion 7 and of a length such that, in use, it can be interlaced with the outer edge portion and have its other end extending diametrically across the tyre and releasably connected, e.g. by a hook 44, with the chain. The other end of the tie is provided with a stiffening member 46. As illustrated, the tie is a chain and the member 46 is a flexible sleeve of synthetic material frictionally retained on the (tie) chain. The inboard edge portion 6 comprises two chain lengths interconnected by hooks 14, 15 and the other edge portion 7 comprises a chain length 34, the ends of which are interconnected by a hook 40. The method of mounting the tyre chain is disclosed in the Specification.
Patent GB-1489901-A (GB)
Title: Information transmission system
IPC: G01S13/82
Filed: 1974-11-26
Abstract: 1489901 Interrogator responder systems TELEFONAKTIEBOLAGET AB L M ERICSSON 26 Nov 1974 [30 Nov 1973] 51243/74 Heading H4L In an interrogator-responder system the transponder includes a plurality of resonant circuits each having a different resonant frequency, which are shock-excited by a pulse derived from a modulated carrier interrogating signal to generate pulses at a frequency related to that of the modulating signal and comprising components which are simultaneously damped oscillations at specific resonant frequencies, to form the return signal. The interrogator includes a carrier source 11, modulator 12 and modulation signal source 14. At the transponder, the received signal is demodulated at 32 and is supplied via a filter 33 to a storage capacitor 34. The demodulated signal is also supplied via a filter 38 and converted into pulse form at 39 to control a switch 35 periodically coupling the capacitor 34 to the resonant circuits 36. The resonant circuits may be isolated from each other by diodes and provided with switching to enable the required coding to be selected. The resulting damped oscillations are received at 21, amplified at 22 and supplied to a modulator 23 receiving the modulating signal from 14 via a matching unit 24. The matching unit provides a signal at a multiple frequency (e.g. twice) of that from 14 and the arrangement is stated to remove unwanted components from the received signal which are caused by the steep intial rise. The output of modulator 23 is supplied to parallel connected detectors 25 each corresponding to a particular one of the frequencies generated at the transponder.
Patent GB-1206186-A (GB)
Title: Improvements in or relating to refuse incinerators
IPC: F23J15/00
Filed: 1967-11-14
Abstract: 1,206,186. Centrifugal separators; separating particles from smoke. BJORKLUND & VEDIN (NEDERLAND) N.V. 14 Nov., 1967 [23 Nov., 1966], No. 51751/67. Headings BIT and B2P. [Also in Division F4] Gases from a refuse incinerator are passed tangentially into a dust separator 5 having an insert 41 with louvred walls, Fig. 12. An exhaust fan 6 withdraws gases from within the insert 41, and dust falling within and outside the insert 41 is collected at the bottom for return to the furnace. The wall louvres are directed so that the direction of gas flow must change by 180‹ as the gases enter the insert.
Patent GB-1368605-A (GB)
Title: Refrigeration apparatus
IPC: F25B9/00
Filed: 1970-11-02
Abstract: 1368605 Refrigerating BRITISH OXYGEN CO Ltd 2 Nov 1971 [2 Nov 1970] 52051/70 Heading F4H A refrigeration system for use in cooling the adsorbent beds 2 and 4 of a helium purification plant, each bed emitting a variable amount of heat, comprises vessels 4 and 6 containing liquid nitrogen; a nitrogen liquefier 28 for converting to liquid gas vaporized by the emitted heat; a liquid storage vessel 30 which is able to receive the liquid produced by the liquefier 28 and from which liquid is able to flow to the cooling vessels 4 and 6; a pressure relief valve 42 adapted to vent any excess gas; and means 56 for supplying liquefied gas to the storage vessel 30 from a separate source 57 when the liquefied gas in the storage vessel falls below a chosen level 52. In operation, when a sensing element is uncovered, a signal generator 59 is actuated to start the pump 56. When the level of the liquid nitrogen covers a second sensing element 53, the pump 56 is stopped. To ensure that the pump 56 is always primed a level sensing element 65 is located in the vessel 57 and is designed to actuate an alarm 67 to warn the operator to start an air separation plant 62. If the vapour pressure in the line 22 falls below a chosen limit a pressure sensing element 75 located in communication with a conduit 70 leading from a column 32 to the line 22 actuates electrical heating elements 72 and 74 immersed in the liquid nitrogen contained in the column 32. The electrical heating causes vaporization of some of the liquid nitrogen. Excess gas from relief valve 42 may pass into conduit 43 from which conduit it enters heat exchangers 48 and 50 and cools incoming helium.
Patent GB-1121180-A (GB)
Title: Manufacturing heat-insulated boxes
IPC: F25D23/06
Filed: 1966-11-22
Abstract: 1,121,180. Refrigerators. PHILIPS' GLOEILAMPENFABRIEKEN N.V. 22 Nov., 1966 [22 Nov., 1965], No. 52260/66. Heading F4H. A method of making a heat insulating container comprises assembling prefabricated panels 1, 2, 3 to form the side and bottom walls of the container, each panel consisting of an outer sheet 4, 7, 10, a relatively small inner sheet 6, 9, 12 and intervening foamed plastic insulation 5, 8, 11, and foaming plastics material in the spaces 20 between the insulation of adjacent panels. The outer sheets of the panels project beyond the edges of the inner sheets by a distance substantially equal to the thickness of the insulation except at those edges which define the access opening of the container. The sheets of the bottom panel 1 are provided with grooves 13, 14 which receive the sheets of the side panels, and the side panels are interconnected by grooved corner pieces 15, 16. Reinforcing plates may be partly embedded in the panel insulation so as to project into spaces 20 (Fig. 3, not shown). The inner sheets may be grooved to receive refrigeration means and in one embodiment (Figs. 4 and 5, hot shown) three serially connected evaporators are provided in the container which is mounted on a base unit accommodating the compressor, condenser and condenser fan.
Patent GB-1497263-A (GB)
Title: Aperture forming device
IPC: E04G15/06
Filed: 1974-12-05
Abstract: 1497263 Forming apertures in concrete J R McCLUSKEY 5 Dec 1974 [10 Dec 1973] 52655/74 Heading E1S A device for forming an aperture in a concrete wall or floor during casting, comprises a cylindrical or frusto-conical elastomeric body having a rigid member at least partially embedded therein, the rigid member extending coaxially through part of the length of the body near one end of the body (the wider end if frusto-conical), and the rigid member having means for coupling to an extractor member for pulling the device out of the set concrete, the end of the body adjacent the rigid member lying, in use, at an exposed surface of the concrete. The rigid member may be a nut or coil 56' wholly embedded in the body 52' and surrounding an axial passage through the body, into which is inserted a threaded bolt 62' for extraction of the body; in the case of a wall, such bolt may serve to hold the forms 74, 76 together during casting. Alternatively, the rigid member may be a bolt 122 partially embedded in the body 120 and having a threaded portion projecting from the end of the body, for engagement with an extractor member 128. A bolt projecting from the body may co-operate with a nut and a U-shaped bracket bearing against the concrete to remove the body. In the case of a floor, a positioning member may be secured to the form to hold the device during pouring of the concrete.
Patent GB-1207349-A (GB)
Title: Semiconductor device and method of making the same
IPC: H01L29/06
Filed: 1967-11-20
Abstract: 1,207,349. Semi-conductor devices. HITACHI Ltd. 20 Nov., 1967 [25 Nov., 1966 (2)], No. 52764/67. Heading H1K. The active part of the collector region of a planar transistor consists of uniformly doped material of high resistivity and is surrounded by material (monocrystalline or polycrystalline) of sufficiently low resistivity to avoid the formation of an inversion layer under the applied surface passivation. The active part of the collector region is initially formed as a projection from a starting wafer and the rest of the collector region is formed on this projection. This stage is shown in Fig. 3c in which the P- starting wafer 21 has been shaped to leave the projection 22, a heavily doped diffused region 23 has been formed (this is to ensure that the collector depletion region in the working transistor will be terminated in a zone free of lattice defects), and in which a heavily doped grown region 24 has been formed. The basal part of the starting wafer 21 is ground away and the transistor completed as shown in Fig. 5c. In a variant, the grinding may be continued to expose the grown material 24 at the top surface of the body to underlie the passivation. In another variant the heavily doped diffused layer 23 may be omitted. This last variant may be formed as a ball-bonding flip-chip or may have concentric base and emitter contacts at the passivated face and a bottom surface collector contact.
Patent GB-1198389-A (GB)
Title: Solenoid Valve
IPC: F16K31/06
Filed: 1968-11-07
Abstract: 1,198,389. Valves. ALFA ROMEO S.p.A. 7 Nov., 1968 [21 Dec., 1967], No. 52900/68. Heading F2V. A solenoid valve comprises a coil 12 and a magnetic member consisting of an outer cupshaped part 1 and an inner part 8 forming a flow conduit. With the object of reducing the dimensions and weight of the movable valve member so that a short response time is obtainable, whilst also assuring ready hydraulic flow for actuating an external device, the movable valve member consists of an inverted cup-shaped member 5 slidably surrounding a seat projection 2 of the part 1. The member 5 comprises a magnet sleeve part 4 capped by an end 6 of insulating or plastics material, with radial flow ports as shown next to the end. The member 5 is adjustably loaded through a spring 7 and adjusting and lock screws 16, 17 and in open position engages the slotted end of the part 8.
Patent GB-1530320-A (GB)
Title: Preparation of maleic anhydride
IPC: B01J27/186
Filed: 1975-12-29
Abstract: 1530320 Maleic anhydride STANDARD OIL CO 29 Dec 1975 [6 March 1975] 52966/75 Heading C2C Maleic anhydride is made by catalytically reacting n-butene with O 2 , in a fluid bed reactor in a single undivided reaction zone such that the oxidation-catalyst can move to any point in the said zone, the said oxidation catalyst comprising a catalyst effective for oxidizing n-butene to butadiene and a catalyst effective for oxidizing butadiene to maleic anhydride.
Patent GB-1377115-A (GB)
Title: Sealing arrangements in tilting or revolving windows
IPC: E06B7/22
Filed: 1972-11-21
Abstract: 1377115 Window sealing strips V B K RASMUSSEN 21 Nov 1972 [22 Nov 1971] 53754/72 Heading E1J A tilting window including a fixed frame 1, a pivotal sash 2 and a rail 4 secured to either the frame or the sash for abuttment with the other in the closed position, has a T-sectioned, elastic seal having its stem 7 secured in a groove 8 in the rail facing the line of contact 5 between the frame and sash, and one half of the cross-piece 6 of the T is engaged in a groove between the rail and the sash or frame to which the rail is secured. The seal may be an elastomer or of folded metal.
Patent GB-1213179-A (GB)
Title: Improvements relating to earth drilling
IPC: E21B1/00
Filed: 1968-11-13
Abstract: 1,213,179. Percussive drills. BECKER DRILLS Ltd. 13 Nov., 1968 [21 Nov., 1967], No. 53825/68. Heading B4C. [Also in Division E1] Fragments accumulated in the annulus 17 of a borehole surrounding a double walled drill pipe are cleared by passing a fluid down between the walls 29, 30 of the pipe to ports 50 which can be opened to set up a turbulent scouring flow in the annulus. When the drill pipe is lifted sealing surfaces (47), 48 on bit connector 24 are lifted clear of sealing surfaces 45 and 46 on the bit thus opening ports 50. Relative movement between the connector and bit is limited by hooks on arms 28, which extend upwardly from the bit into a chamber 40 in the connector, engaging pins 54. Ports 50 are comprised by the spaces between the arms 28. The chamber 40 which receives the fluid-for example compressed air-from bores 35 also feeds the fluid through bores 43 to the teeth 41 of the bit. The apparatus is otherwise similar to the apparatus of Specifications 1,133,741 to 1,133,744. The hole is drilled percussively.
Patent GB-1111808-A (GB)
Title: Improvements relating to milling of rubber latex
IPC: B29B7/62
Filed: 1965-12-20
Abstract: The nip between rollers of a machine for milling latex rubber may be changed by fitting at least one of the rollers with a metal sleeve.
Patent GB-1490234-A (GB)
Title: Telescopic crane-boom
IPC: B66C23/70
Filed: 1974-12-18
Abstract: 1490234 Telescopic booms CREUSOTLOIRE 18 Dec 1974 [20 Dec 1973] 54637/74 Heading B8B A telescopic boom for a crane, Fig. 1 (not shown), comprises a plurality of telescopic sections 5, 7, 8, 9 each,, e.g. 7, having a transverse cross-section in the form of a re-entrant pentagon and comprising an upper face 16, two downwardly convergent lateral faces 19 of equal width and two lower faces forming a base 18 in the shape of an inverted V, their being guide means for guiding the sections in relative movement, shown as, for example, slide blocks 24 arranged between the upper faces of adjacent sections 7, 5 and slide blocks 23 between both of the lower faces of adjacent sections, such as 9, 8.
Patent GB-1454776-A (GB)
Title: Open ended ratchet spanner
IPC: B25G1/06
Filed: 1975-02-18
Abstract: 1454776 Ratchet spanner E S BOOCOCK 18 Feb 1975 54858/73 Heading B3N An open ended ratchet spanner comprises a head a having teeth d, the rear end of the head is pivotally mounted in the handle b, a pawl e is pivoted in a groove g in the side of the handle and is biased into an engaged position with the ratchet teeth by a V-spring j, compressing the spring allows the pawl to disengage the teeth. The interior shape of the spanner head may be as shown in Fig. 11 or 13.
Patent GB-1448749-A (GB)
Title: Numerically onctrolled lathe
IPC: G05B19/18
Filed: 1973-11-27
Abstract: 1448749 Lathe controls INDEX-WERKE KG HAHN & TESSKY 27 Nov 1973 [4 Dec 1972] 54934/73 Headings B3B and B3T [Also in Division G3] A tape controlled lathe comprises a work spindle 16 adapted to be rotated by a drive 22, or rotated through a predetermined angle by a drive 54, and a superposed carriage 14, including longitudinal and cross slides 30, 38, slide 38 being adapted to be stopped in the "X" direction when the spindle is moved through the predetermined angle. In operation, the workpiece 20 is rotated by drive 22, and slides 30, 38, are fed by lead screws 34, 42, rotated by motors 36, 44, actuated by tape control unit 60, so that tool 48 machines the workpiece. A groove 86 is now to be milled in the workpiece by a tool 52. Gear 26 is moved along so that work spindle 16 is connected to drive means 54, switch 84 is closed and switch 82 is opened, so that only slide 30 is moved, the signals from control unit 66 controlling drive 54 rather than motor 44. The angle through which the workpiece rotates corresponds to the movement of slide 30 and the helical groove 86 is milled in the workpiece. The movements of the slides and work spindle are monitored by indicators 73, 74, 78. Screw threads can be produced on a workpiece.
Patent GB-1409652-A (GB)
Title: Electric heating elements
IPC: F24D13/02
Filed: 1971-11-26
Abstract: 1409652 Area heating sheets J K ENGGAARD 6 Sept 1972 [9 July 1971 26 Nov 1971] 32364/71 and 55016/71 Heading H5H A heating sheet which may be cut and which retains a constant ohms/square comprises a conductor/resistor/conductor laminate having insulated surfaces such that the resistive areas are discontinuous so as to be present and absent in uniformly distributed areas as shown for example in Figs. 3 and 4.
Patent GB-1164678-A (GB)
Title: Improvements relating to Pop Safety Valves
IPC: F16K17/04
Filed: 1967-12-12
Abstract: 1,164,678. Valves. TOA VALVE CO. Ltd. 12 Dec., 1967 [27 Dec., 1966], No. 56411/67. Heading F2V. In a pop safety valve, the valve closure member 3, which is assembled in a holder 4 and movable with it within a cylindrical guide 5, has its undersurface, which is engageable with a seat 1, formed with an annular protrusion 8, the free end of which is inclined, and an annular flange 9 which is bent inwardly into tight abutting engagement with the protrusion 8, an annular chamber 15 being so defined between the flange 9 and the protrusion 8, and the undersurface 11 of the flange 9 being formed flat for engagement with a corresponding surface 2 of the seat 1. The closure member is biased on to the seat by a spring 6, but upon the fluid pressure within the seat 1 reaching a certain value, such pressure through acting on the closure surface 10 and within chamber 15 causes the valve to reach a state, prior to it popping open, in which only line contact is maintained between the flange 9 and seat surface 2 and the protrusion 8 is spaced from the flange 9 (Fig. 3, not shown), the arrangement serving to minimize or prevent leakage prior to popping of the valve. The flange 9 is formed from an annular peripheral wall (18, Fig. 4, not shown) depending from, and integral with, the closure member, which wall has metal fibres extending in the vertical direction and is bent inwardly into contact with the protrusion 8 in hot forming.
Patent GB-1212860-A (GB)
Title: A method of producing vessels having walls of sheet metal and tubes
IPC: F16L53/00
Filed: 1967-12-12
Abstract: 1,212,860. Making heat exchangers; welding by fusion. L. & C. STEINMULLER G.m.b.H. 12 Dec., 1967 [17 Dec., 1966], No. 56458/67. Headings B3A and B3R. [Also in Division F4] A heat exchange vessel comprising a sheet wall with tube coils welded, to the wall is made by welding a series of tubes 3 to a strip of sheet metal 2, helically coiling the strip on a core and welding the adjacent strip edges together. The tubes and strip may be welded together by plug or spot welding. More than one strip provided with, tubes may be used and the strips are helically. wound side-by-side. The tubes may be internal or external of the vessel.