baber/WOPTO huggingface dataset:
Patent GB-395837-A (GB)
Title: Improvements in and relating to spectacles and eyeglasses and the like
IPC: G02C5/00
Filed: 1932-05-13
Abstract: 395,837. Spectacles. DRUIFF, S., 3A, South Hill Park, Hampstead, London. May 13, 1932, No. 13817. [Class 97 (i).] In a temple piece in which the part adjacent the lens has a xylonite &c. covering and the part remote from the lens is of coiled wire, a core is used of which the part to be covered by xylonite is flattened in one or more places and the part to be covered by wire is of rectangular section. The flattened section or sections prevent the xylonite covering from slipping round the core and the rectangular part presses against the tubular surface of the wire covering and prevents it from twisting round the core and losing its shape. The core may be made in one piece or in two pieces, one having one or more flattened sections and the other being a wire or strip of rectangular section, these two pieces being welded &c. together.
Patent GB-1091762-A (GB)
Title: The manufacture of electric lamps
Inventor: BILL JOHN CHRISTOPHER
IPC: H01K3/00
Filed: 1964-04-03
Abstract: 1,091,762. Electric incandescent lamps; discharge lamps. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. March 24, 1965 [April 3, 1964], No. 13858/64. Headings H1D and H1F. The volume of glass which is subsequently softened to form the base of a capless electric lamp or discharge tube is increased by positioning an additional body of glass in the neck of the envelope before sealing. The body may be in the form of a ring surrounding the lead-in wires or individual tubes may be placed on the lead-in wires and may be fused to these before the assembly of filament and lead-in wires is positioned in the envelope. The tubes may be replaced by glass beads fused on the lead-in wires. Alternatively, a glass tube may be arranged around the exhaust tube. The method may be applied to bayonet type lamps described in Specification 1,091,761.
Patent GB-715200-A (GB)
Title: Improvements in or relating to fluid control apparatus more particularly for pressurized fuel tanks
IPC: G05D7/01
Filed: 1951-06-15
Abstract: 715,200. Fluid-pressure servomotor-control systems. VICKERS-ARMSTRONGS, Ltd., and DAWSON, R. A. May 29, 1952 [June 15, 1951], No. 14229/51. Class 135 A valve unit for maintaining in an aircraft fuel tank a predetermined pressure above that of the ambient atmosphere consists of a pilot valve 13 actuated through a system of levers and links by a piston 4 subject on its upper face to atmospheric pressure and on its lower face to tank pressure, and a main valve plunger 23 coacting with a seat 24 and controlled by the pilot valve. The arrangement is such that for small deviations from the required pressure differential the pilot valve is opened to a small extent to allow inert gas or air to pass from an inlet chamber 29 to an axial passage in the main valve plunger throttled by a needle 30, and thence through a passage 25 and past the pilot valve to an outlet 26 to the tank. Larger openings of the pilot valve cause pressure above the main valve plunger 23 to be relieved sufficiently for the latter to open and permit flow direct to the outlet. The plunger 23 has a rubber cone 31 to form a seal when the valve is closed and is fitted with a copper washer 32. The connection between the piston 4 and the pilot valve consists of a lever 7 on a fixed pivot 8 and connected by an H-link 10 to a lever 11 on a fixed pivot 12. A spring 17 having a fixed abutment 18 loads the piston 4 through a drum 15 connected by a bridge 14 to the piston. The unit has two inlets, one (not shown) for inert gas, and the other 28A for air. Each inlet has a non-return valve and that in the air inlet is normally closed by higher pressure in the gas inlet but opens in the event of failure of that pressure. A relief valve may be fitted to the unit to relieve excessive pressure in the tank.
Patent GB-1422274-A (GB)
Title: Method of and apparatus for treating electric heating elements
IPC: H05B3/26
Filed: 1973-03-23
Abstract: 1422274 Pre-aging heating elements THERMONIC SA 23 March 1973 [@3 March 1972] 14233/73 Heading H5H  In a method of treating an electric heating element comprising a printed circuit resistance of aluminium based alloy having a working temperature of approximately 170‹ C., to preage and stabilize the value of the resistance, the heating element 4 is passed with other similar elements on a conveyer 3 between heat sources 1, 2 to subject it to a temperature between 350‹ and 400‹ C. for approximately 4 minutes. The heating element may have printed circuits on only one or on both sides, the same heat source arrangement being used for both. The time of heating can be controlled by controlling the speed of the conveyer.
Patent GB-1136534-A (GB)
Title: Improvements in or relating to organotin compounds
Inventor: NATOLI JOSEPH GABRIEL
IPC: C07F7/22
Filed: 1967-03-29
Abstract: 1,136,534. Organotin compounds. M. & T. CHEMICALS Inc. 29 March, 1967 [29 March, 1966], No. 14352/67. Heading C2J. Tricyclohexyl tin hydroxides are prepared by reacting cyclohexyl magnesium halide, (C 6 H 11 )MgX, in which the cyclohexyl radical may be inertly substituted, and tin tetrahalide, SnX 4 , in which formulµ X represent Cl or Br, (preferably in a molar ratio of 3 : 1) in the presence of hydrocarbon solvent and a solventdiluent selected from aliphatic ethers and certain cyclic ethers to form a tricyclohexyl tin halide, hydrolysing the resultant reaction mixture to liberate the tricyclohexyl tin halide, separating from said hydrolysed reaction mixture an organic layer containing hydrocarbon solvent, solvent-diluent and tricyclohexyl tin halide, causticising said organic layer to form a solution of tricyclohexyl tin hydroxide and cooling the solution to precipitate the tricyclohexyl tin hydroxide. The reaction between cyclohexyl magnesium halide and tin tetrahalide is preferably carried out at 25‹-105‹ C., the preferred hydrocarbon solvent being xylene. Suitable cyclic ethers for use as solvent-diluents include ethers containing 5-6 members in the ring with at least one hydrogen atom attached to each carbon atom in the ring and having the formula wherein X is a methylene group or an N- alkyl group; R<SP>11</SP> is an unsubstituted saturated divalent aliphatic hydrocarbon radical; R<SP>1</SP> is an ethylene radical, an ethylenically unsaturated divalent hydrocarbon radical, or =CHR<SP>111</SP> (R<SP>111</SP> being hydrogen or an aliphatic radical); and O is oxygen: when X is N-alkyl the ring contains 6 members with X and O in a position 1:4 with respect to each other. Hydrolysis is typically effected by water containing electrolyte, e.g. hydrochloric acid, in amount 2%-8% by weight. Causticisation is preferably carried out by adding to the separated organic layer an aqueous solution of a strong alkaline agent, e.g. NaOH, KOH: after reaction water may be added to dissolve the salt product. Tricyclohexyl tin hydroxide may be precipitated by cooling to -10‹ to 25‹ C.
Patent GB-235191-A (GB)
Title: Improvements in or relating to incandescent electrical lamps
IPC: H01K9/04
Filed: 1925-06-02
Abstract: 235,191. Neue Gluhlampen Ges., (Assignees of Berger, W.). June 3, 1924, [Convention date]. Multiple-filament lamps; caps; leading-in wires.-In bulbs of the kind wherein a number of central contacts e, f connected to the several filaments are adapted to be brought into use successively, the insulation g between them is arranged so that it can only be removed after the leading-in wire d to the discarded filament has been broken. This wire passes through apertures in the inner contact and in the insulating-disc g, and is soldered to the outer contact. The part of the leading-in wire d within the cap is enclosed in a glass tube k to prevent it from contacting with the leading-in wire c connected to the other filament. The contacts are attached to pins e<1>, f<1> by which they are secured in the insulation h of the cap. In the Specification as open to inspection under Sect. 91 (3) (a) a bulb is described wherein the several filaments comprise different lengths of a single wire. This form does not appear in the Specification as accepted.
Patent GB-253540-A (GB)
Title: Improvements in and relating to the manufacture of ammonia
IPC: C01C1/04
Filed: 1925-12-31
Abstract: 253,540. Soc. d'Etudes Minieres et Industrielles. Jan. 8, 1925, [Convention date]. Ammonia, catalytic production of from nitrogen and hydrogen; catalytic agents, preparations of. -Ammonia is synthesized by passing a mixture of nitrogen and hydrogen at a relatively low pressure (even atmospheric) and at a temperature of at least 500‹ C. over a mixture of (1) metallic iron, nickel, cobalt, or tungsten, or mixtures thereof, (2) lithium nitride or amide (Li NH2 or Li2 NH), and (3) alumina, magnesia, or lime. or mixtures thereof. An example is given. Specifications 28167/11 and 245,762 are referred to. The Specification as open to inspection under Sect. 91 (3) (a.) describes also the use of molybdenum under (1) above and of any nitrogen compound of lithium under (2) above. This subjectmatter does not appear in the Specification as accepted.
Patent GB-577374-A (GB)
Title: Sound insulating and absorbing means for internal combustion engines and internal combustion engine power plants
IPC: E04B1/82
Filed: 1944-07-31
Abstract: 577,374. Sound-deadening chambers. DAVEY, PAXMAN & CO., Ltd., and PAXMAN, E. P. July 31, 1944, No. 14596. [Class 20 (ii)] [Also in Groups XXIV and XXVII] A sound insulating casing for an internal combustion engine or a small power plant comprises a movable hood adapted to be moved into position to co-operate with a fixed wall or partition to make a complete sound insulating enclosure for the engine. A bulkhead 17 constituting the wall or partition and the casing 3, which may be made of steel, aluminium, light alloy or a plastic material, are lined with sound insulation, e.g., bricks, slabs of the material known as " Cellotex " or felt. The hood is moved into position on wooden or rubber-tyred metal wheels 8 which are mounted on eccentrics capable of being rotated by a handle 13 to lift the wheels when the hood is in position. The wheels are arranged inside a guard 7 and run on rails formed of angle iron which are mounted on concrete side walls of the engine pit themselves supported on cork or other yieldable material. In a modification a plate lined inside with sound proof pads extends from the bulkhead and is arranged so as to form a labyrinth passage with the outside edge of the casing for the combustion air. The casing may be divided transversely, the lower part being fixed. The engine piping and remote controls may pass through recesses at the joint of the two parts and be fixed to the lower part in sound insulating bushes.
Patent GB-179086-A (GB)
Title: Improvements in and relating to closet seats
IPC: A47K13/30
Filed: 1921-05-26
Abstract: 179,086. Death, A. W. May 26, 1921. Closet seats.-In order to minimize the risk of disease by contact with closet seats, the front part is cut away and a metal piece or " guard " 3 inserted. This is formed with a dished part 4 and a thin wall 6. The whole may be flushed with water, in which case connection is made by a pipe 13 and a valve 20 in one of the hinges with the flush pipe 22 or other source. Recesses 7, 8 may be cut in other parts of the seat. A drainhole 16 or slot is provided at the bottom of the part 4.
Patent GB-177734-A (GB)
Title: Improvements in cushioning and spring suspension devices for vehicles
IPC: B60G13/04
Filed: 1921-05-27
Abstract: 177,734. Kuhn, E. May 27, 1921. Laminar springs; vibration - dampers.- A spring cushioning- device for vehicles comprises an arc-shaped laminated spring the ends of which are provided with levers which turn about a fulcrum at the centre of the spring, frictional means being provided thereat for reducing the oscillation of the spring and levers. To the ends of the outer leaf a are bolted lugs h, h', carrying eyes by which the leaf is connected to the vehicle frame and main spring respectively, and the outer ends of levers k, k<1> the inner ends of which are pivoted together by a bolt l at the centre of the spring. Excessive outward movement of the lever is prevented by rims m, m<1> on the circumference of the enlarged inner ends thereof which engage corresponding recesses n, n<1>, and motion is damped by the lever being pressed together and on to an interposed friction disc p by springs q. Brass insertions may be placed between the leaves of the spring to reduce friction, and a rubber stop s prevents the lugs h, h<1> from colliding.
Patent GB-947152-A (GB)
Title: Improvements in or relating to high-vacuum circuit interupter
Inventor: BROWN KENNETH WILLIAM
IPC: H01H33/668
Filed: 1959-04-30
Abstract: 947,152. Vacuum switches. ENGLISH ELECTRIC CO. Ltd. April 26, 1960 [April 30, 1959], No. 14764/59. Heading H2B. A high-vacuum circuit interrupter has at least the arc supporting region of at least one of the contacts formed wholly or partly from a metal chosen from the group consisting of zirconium, titanium and thorium for the purpose of " gettering." In an example, the contacts 17, 18 consist of 0.3% zirconium and 99.7% of copper. Metal shields 21, 22 may also incorporate one of the above metals.
Patent GB-1448508-A (GB)
Title: Programmable billing system
IPC: G03G21/10
Filed: 1974-04-03
Abstract: 1448508 Pulse counting and multiplying; sheet counting and price calculating XEROX CORP 3 April 1974 [6 April 1973] 14837/74 Heading G4D A pulse multiplier provides a different number of output pulses for each of the input pulses in a sequence. In an arrangement for determining the price to be charged for photocopies the number added into an accumulator 71 for each copy produced reduces for each succeeding copy made from the same original. A binary counter 11 counts the input pulses at 12 representing copies made and for instance derived from a microswitch operated by the copies; the counter 11 is reset to zero each time a new original is inserted, indicated by a pulse at 14. The coded value of the count in counter 11 is applied on lines 2-5 to a read only memory 17 which delivers a corresponding value representing the price; as shown it delivers two alternative values 5, 6 which can be selected by signals on lines 36, 46 depending on whether the copies are black on white or coloured, for instance. A counter 61 is loaded with the output value from the ROM and then counts down from a clock 64. When the counter reaches zero it disables the clock by a bi-stable 72 and gate 66. The accumulator counts the clock pulses applied to the downcounter.
Patent GB-948558-A (GB)
Title: Apparatus for the training of pilots for rotary wing aircraft
IPC: G09B9/46
Filed: 1962-04-17
Abstract: 948,558. Training aircrew in captive aircraft. L. BOLKOW, [trading as BOLKOW ENTWICKLUNGEN K.G.]. April 17, 1962 [May 26, 1961], No. 14841/62. Headings B7G and B7W. A helicopter fuselage 10 is mounted by pivoted links 18, 19, 20 on a base 17 connected by a pivot 8 to a stand 21 having a part-spherical surface 24 rolling on a support 25 fixed to a foundation member 30. The surface 24 has one or more pins 26 which engage in recesses in support 25 to prevent relative displacement of surface 24 on support 25 and a cable 28 prevents vertical movement of surface 24. Four symmetrically disposed arms 23 on stand 21 co-operate with stops 35 to enforce rotation of the stand about one horizontal axis when desired and engage resilient stops 31 to prevent undesirable impact between the arms and the ground. The pivot 8 has a brake 22 to brake rotary movements of the helicopter. The helicopter can be lowered into a rest position on a base 38. Links 37 prevent rotation about a vertical axis of stand 21 whilst permitting tilting. A cardan joint replaces the part spherical surface 24 in Fig. 3 (not shown).
Patent GB-1023324-A (GB)
Title: Cathode ray tube
IPC: H01J29/80
Filed: 1964-04-10
Abstract: 1,023,324. Cathode-ray tubes. SONY CORPORATION. April 10, 1964 [April 11, 1963], No. 14920/64. Heading H1D. A cathode-ray tube includes a luminescent screen having guard bands and a metallic coating, a reticulate electrode adjacent to but spaced from the screen, and a conductive coating on the conical portion of the envelope connecting the screen to the tube neck, the metallic coating, the conductive coating, and the reticulate electrode being held at potentials the magnitudes of which decrease in that order. Non-luminescent material in the form of a mesh or bands 14 either modify the distribution of the luminescentmaterial 5, as in Fig. 3, or separate it completely into discrete areas, the whole being covered by an aluminium layer 15; an aluminium layer also coats'the conical section of the tube envelope. The electrode 11 may be in the form of parallel rods, a mesh, or a plate having circular apertures (Fig. 2, not shown) and causes electron beam 12 to be focused on the luminescent regions of the screen. The layer 15, the electrode 11, and the envelope coating, may be at 10, 2À5and 5 kilowatts, respectively.
Patent GB-111128-A (GB)
Title: Improvements in or connected with Planes for Aeronautical Machines.
Inventor: KELLY THOMAS DANIEL
IPC: B64C3/00
Filed: 1917-05-07
Abstract: 111,128. Kelly, T. D. May 7, 1917. Planes, construction of. - The main lifting- planes of aeronautical machines are provided on the under surface with rigid pockets D, Fig. 4, arranged across the line of flight, in addition to, or instead of, pockets on the top surface of the planes. The pockets are the same as those described in Specification 101,442. In modifications, the pockets are replaced by angled grooves D, Fig. 1, similarly arranged. When grooves are provided on both surfaces of the plane, the plane may be formed of a sheet of thin sheet metal or other material stamped with V-shaped corrugations. The ends of the grooves may be closed by plain edges E or may be left open.
Patent GB-1219472-A (GB)
Title: Method of fabrication of porous bodies of alumina
Inventor: BIDARD JEAN-CLAUDE
IPC: B01D71/02
Filed: 1968-03-28
Abstract: 1,219,472. Moulding plastic substances. COMMISSARIAT A L'ENERGIE ATOMIQUE. 28 March, 1968 [7 April, 1967], No. 14992/68. Heading B5A. [Also in Division C1] In the examples, alumina is moulded into tubes by (1) adding 5-15% wt. aluminium mono-orthophosphate and 10-20% of a plasticizer to α-Al 2 O 3  or γ-Al 2 O 3  powder and extruding the mixture at a rate of 10-100 m./min., or (2) mixing alumina powder and aluminium mono-orthophosphate and subjecting the mixture to isostatic compression between a metallic core and a rubber membrane at pressures of at least 200 kg./cm.<SP>2</SP> and baking the tube in air at 300-400 C. to melt the metal core.
Patent GB-317775-A (GB)
Title: Handles for suit cases and similar portable articles
IPC: A45C13/26
Filed: 1928-05-02
Abstract: 317,775. Hedges, A. E., Powell, T. B., and Barrow, Hepburn, & Gale, Ltd., May 22, 1928. Handles.-Suit case and like carrying handles of the kind adapted when out of use to lie flat against the face of the case or article to which they are attached, have the flattening action caused by spring means embodied in the hingefittings. In the construction shown in Figs. 1, 2, the handle ends are attached to hinged loops 1 constrained normally to lie flat under the influence of " mouse-trap " springs 3. Fig. 3 shows a modified construction in which links 7 are interposed between the spring-urged loops 1 and the handle ends, thus permitting a parallel motion of the handle with respect to the case &c. Fig. 5 shows a further modification in which the " mouse-trap " spring is replaced by an arched blade-spring 8 engaged by a lug 9 formed on the part 1; by this construction the handle is retained in the raised position until depressed, when the spring again acts to assist the battening action.
Patent GB-681599-A (GB)
Title: Improvements relating to perambulators and the like
IPC: B62B7/08
Filed: 1948-07-21
Abstract: 681,599. Folding push chairs. LINES BROS., Ltd., and LINES, W. April 28, 1949 [July 21, 1948], No. 15037/51. Divided out of 681,542. Class 108 (i). A folding four-wheeled push-chair comprises at each side a substantially horizontal frame member 1 supporting a body 3, a link 14 crossing the horizontal member and pivoted to it at 17, two crossed members 6, 7 pivoted to the horizontal member and the lower end of the link respectively and forming an X frame carrying the wheels, and one limb 16 of a handle 13 pivoted directly to the upper end of the link 14. The handle 13 is also extended and pivoted at 18 to a link 15 the lower end of which is pivoted at 19 to the frame member 1. A ring 20 is slidable down the limb 16 to lock the perambulator in the erect position by engagement with the top of the link 14 against which the extended pivot-pin 18 will abut. Specification 681,542 is referred to.
Patent GB-1084484-A (GB)
Title: Improvements in or relating to communication systems comprising several stations
IPC: H04B5/00
Filed: 1966-04-05
Abstract: 1,084,484. Inductive signalling. PHILIPS ELECTRONIC & ASSOCIATED. INDUSTRIES Ltd. April 5, 1966 [April 8, 1965; July 7, 1965], No. 15106/66. Heading H4U. In an inductive signalling system comprising a plurality of mobile stations each having a transmitter and receiver, the transmitter operating on suppressed carrier amplitude modulation, an amplifier which includes a synchronous demodulator and an amplitude modulator for retransmitting the signals is connected to theinductiveloop. In the mobile stations the carrier waves are derived, from the carrier wave transmitted by the amplifier. At station 1 signals from microphone 5 are supplied via amplifier 6 to balanced modulator 7 driven by a carrier wave derived from the received, signal via pick-up loop 9, carrier filter 11, frequency-multiplier 12 and frequency divider 13, the carrier frequency being n/m times that transmitted from the relay station 4. The resulting suppressed carrier double-sideband signal is supplied via tuned circuit 18 to the transmitting loop 19. The signals picked up by the inductive loop 3 are supplied via a filter 20 in the relay station 4 to a synchronous demodulator 21 receiving a carrier signal from oscillator 14 via multiplier 16 (În), divider 17 (¸m) and phase-adjuster 22. The resulting A.F. signal is supplied via filter 23 and amplifier 24 to an amplitude modulator 25 co-operating with carrier oscillator 14, the modulated output being supplied via filter 26 totheloop 3. Station 2 operates in the same way as station 1, and since the carrier is suppressed when transmitting there is no mutual interference when no speech signals are present. The signal supplied to the loop by relay station 4 is picked up by loops 9 and 30, that from loop 9, for example, being supplied via filter 10, detector 31 and amplifier 33 to loudspeaker 33. A number of relay stations operating on different frequencies may be provided so that several independent duplex connections can be established, the mobile station being provided with means for changing the carrier frequency accordingly. The filter 20 in the relay station may be replaced by a single sideband filter.
Patent GB-1420498-A (GB)
Title: Heat and wear resistant sintered alloy
IPC: C22C38/30
Filed: 1973-03-29
Abstract: 1420498 Sintered iron base alloy NIPPON PISTON RING CO Ltd 29 March 1973 [30 March 1972] 15291/73 Heading C7A A sintered, heat and wear resistant, alloy comprises: - the balance, apart from impurities, being Fe. The alloy may be made by mixing 1-25 parts by weight of a powder alloy comprising C 0.2-3%, Cr 20-70%, W 5-30% and Co 1-40% with 75-99 parts by weight of Fe, C, Mo and Co powder; compacting the mixture; and sintering the compact (e.g. in a reducing atmosphere). USE:- Valve seats for internal combustion engines (especially those using lead-free petrol).