baber/WOPTO huggingface dataset:
Patent GB-1104086-A (GB)
Title: Speed governor
IPC: B60K31/08
Filed: 1966-04-13
Abstract: 1,104,086. Fluid-pressure servomotor systems. EATON YALE & TOWNE Inc. April 13, 1966 [May 6, 1965J, No.16256/66.  Heading G3P. A speed governor controlling the throttle valve of an I.C. engine when switched in comprises a hinged valve 32 controlling a vacuum port 30 and atmospheric port 34 to determine the degree of vacuum acting on a spring-loaded diaphragm connected to the throttle valve through a cable. A centrifugal governor having weights 66 is driven by a shaft 61 which also drives a speedometer gear 64. When the vehicle speed is above a predetermined value, say 20 m.p.h., the weights act on a rod 40. When it is desired to use the governor control, the vehicle is brought up to speed by the manual throttle control and a switch is then actuated to energize a solenoid 51 which attracts a member 52, connected to the control valve 32, towards the rod 40 thus providing a connection between the rod and valve whereby the valve is moved to control the vacuum acting on the diaphragm to maintain the required speed. The valve 32 is loaded towards the vacuum port 30 by a spring 35 while a spring connected to the diaphragm has a cam portion 133 acting on the control valve 32 to provide feedback. To increase the speed setting the solenoid may be de-energized and the speed set by the manual throttle or the solenoid may be de-energized and energized in succession which causes the member 52 to reconnect the valve 32 and rod 40 before the diaphragm has returned to its rest position, this action would increase the speed setting by between 1-8 m.p.h. When the brakes are operated, the passage 30 is connected to atmosphere so that the governor is inoperative.
Patent GB-942909-A (GB)
Title: Impact tools
IPC: B25D1/00
Filed: 1962-04-30
Abstract: 942,909. Hammers. HERNE HILL ENGINEERS Ltd. April 30, 1962 [May 9, 1961], No. 16336/62. Heading B4C. An impact tool, such as a hammer, comprises a tubular head 3 having closed ends 4, 5 and an auxiliary member slidably mounted within the head, the space between one end of the auxiliary member and the internal surface of the end of the head defining the impact face being at least partially filled with shockabsorbing liquid. The head of the hammer is formed from two tubular parts of cast or nickel steel each open at one end and having an impact face 4, 5 at the other end, the two parts being mounted in a sleeve 2 and welded therein. The auxiliary member 6 is of hexagonal form and mounted, before welding, within the part 3, springs 9, 10 being provided to cushion the movement of the member 6. The shockabsorbing liquid, such as oil, may be admitted into the interior of the head via a hole 7 which is sealed by a plug 8, the oil additionally damping the movement of the member 6. The oil travels from one end to the other via the spaces formed by the flats on the hexagon; alternatively, an axial hole may be formed in the member.
Patent GB-217060-A (GB)
Title: Improvements in electromagnetic wave signalling systems
IPC: G01S3/08
Filed: 1923-06-25
Abstract: 217,060. Boselli, E. June 25, 1923. Aerials; duplex wireless signalling.-An aerial system which is electrically and geometrically symmetrical about a vertical axis is arranged to function as a frame or closed aerial for reception and as an open aerial for transmission. Fig. 2 shows a receiver R coupled to closed circuit C L<1> L<11> P and frame aerial circuit A - - F. The transmitter T is connected. to the aerial system at the point O such that the transmission currents in the coil ÀP will not affect the receiver R. Fig. 3 shows a coil P, the two halves of which are formed by winding on an insulating coil two wires with parallel convolutions with their ends connected together. In a modified arrangement, Fig. 4, the closed circuit associated with the frame aerial is dispensed with, and the receiver is coupled to the aerial circuit The differential coil D<1>, instead of being connected across the condenser C, may be connected to the ends; of the frames aerial so that the transmission currents do not flow in the primary coils P, P<1>. The aerial system may be a single convolution or two or more convolutions connected in parallel.
Patent GB-1437991-A (GB)
Title: Electrophotographic device
IPC: G03G15/30
Filed: 1973-04-13
Abstract: 1437991 Electro-photographic apparatus CANON KK 13 April 1973 [13 April 1972 15 April 1972 20 June 1972] 16431/73 Heading G2H An indirect electro-photographic copier includes means by which, during a period when copying is not in progress, the entire surface of its photo-conductive member is brought to a uniform potential. After an episode of copying a photo-conductive drum is turned through a further revolution while residual charges on its surface are neutralized by an AC corona discharge or by exposure to light. Preferably latent images on the photo-conductive drum are developed with a liquid developer, and residues are removed by a blade and cleaning liquid prior to further copying.
Patent GB-657315-A (GB)
Title: Electrical control system
IPC: G05B1/02
Filed: 1948-06-18
Abstract: 657,315. Automatic control systems. TIZARD, R. H., and HARRIS, J. June 18, 1948, No. 16451. Drawings to Specification. [Class 38 (iv)] [Also in Group XL (c)] In e.g. a speed control system wherein an over-riding control is to be provided in accordance with e.g. a certain motor current, the speed error signal is constituted by a D.C. signal which is applied through a resistance to a D.C. amplifier, and the amplifier input is shunted by a rectifier in series with predetermined blocking voltage, and the over-riding voltage in opposition (see Group XL (c)), whereby when the over-riding voltage exceeds the blocking voltage the rectifier conducts and tends to reduce the e.g. speed control signal.
Patent GB-550302-A (GB)
Title: Improvements in or relating to electric pens
IPC: H01F7/14
Filed: 1941-12-22
Abstract: 550,302. Electric pens. LORANT & CO., Ltd., and BRIDGLAND, J. W. Dec. 22, 1941, No. 16463. [Class 146 (iii)] In an electric pen with an electromagnet having an armature 36 mounted on a resilient member 22 and carrying a stylus 28, the size of the air gap of the electromagnet is mechanically controlled. The magnet core 12 ends in a pole piece 19 having a threaded hole to receive a screw 40, the head of which limits the outward movement of member 22.
Patent GB-399607-A (GB)
Title: Improvements in or relating to aircraft propellers
IPC: B64C11/26
Filed: 1932-06-10
Abstract: 399,607. Air-screws. TURNBULL, W. R., Rothesay, New Brunswick, Canada. June 10, 1932, No. 16467. [Class 114.] An air-screw comprises a framework or grid-like structure, consisting of a series of continuous longitudinal wires connected or braced together by transverse ties in the form of wires or like thin members, the framework being embedded in or covered with a cementitious filling material. A material of a plastic character such as wood-pulp or papiermÔchÚ and cement or material such as the cellular rubberized cement known by the Registered Trade Mark "Onazote may be used. Preferably the grid-like structure is formed of plated piano wires or wires of manganese bronze. The longitudinal wires 9 run from the tip of each blade to the root and serve to carry the centrifugal load, and they are held together or spaced by the cross wires 10 which serve to take the other loads on the blade. The wires may be built up on a jig to give an approximate shape to the final form of blade. In a twoblade propeller the longitudinal wires are connected from tip to tip of the two blades. The blades may be provided with metal tips 12 and edge members 13. With individual blades, the longitudinal wires are connected at the root with a sleeve 15 within the hub sleeve 14 and a ribbed conical stiffening member 18 is secured thereto.
Patent GB-1041123-A (GB)
Title: Method of manufacturing electric igniters for detonators
IPC: F42B3/103
Filed: 1964-04-21
Abstract: 1,041,123. Electric igniters. ETABLISSEMENTS DAREY BECKFORD SMITH & CIE S.A. FRANCAISE. April 21, 1964 [May 9. 1963], No. 16480/64. Heading F3A. A method of making electric igniters for detonators for blasting cartridges consists of metallically coating the faces (but not the edges) of a strip of dielectric material, winding a metal filament helically around the strip, depositing a second conductive layer over the first layer and those parts of the filament in contact with the first layer, cutting slots between the filament turns to form a " comb " which is then cut to produce individual igniters. A cardboard sheet, 0À5 mm. thick, is zinc coated by spraying, vacuum deposition or chemical reduction &c., a metallic filament 6, 0À03 mm. diameter, is helically wound round the strip and a second layer of zinc is deposited so as to embed the filament on to the first layer. Slots 8 are then cut out along the edges of the strip between the turns of the filament 6. Cuts are then made along the broken lines 11 to produce individual igniters. Alternative methods include using a strip of only half width and cutting slots along one edge only, or for longer igniters cutting along the lines 11 is excluded while cuts are made along and perpendicular to the median axis 10 passing through the centre of each slot 8.
Patent GB-1086673-A (GB)
Title: Acrylonitrile polymers
Inventor: NIELD ERIC
IPC: C08L25/12
Filed: 1964-04-21
Abstract: Copolymers containing 1-99 mole per cent of acrylonitrile and 99-1 mole per cent of at least one N-aryl maleimide, or 1-98 mole per cent of these two monomers and 1-98 mole per cent of at least one olefine, diene or aromatic olefine are produced by copolymerizing the monomers under conditions of free-radical catalysis.  The maleimide may be N-phenyl or N-2-chlorophenyl maleimide.  The olefine &c. may be ethylene, propylene, isobutene, 2-methylpentene-1 or styrene. Copolymerization may be carried out in benzene or methanol using azodiisobutyronitrile as catalyst, or in water (which may contain methanol) using potassium persulphate and sodium metabisulphite as catalyst, sodium dodecyl sulphate as dispersing agent, dodecanethiol as chain transfer agent and the pH may be adjusted to 3-4 using sulphuric acid.  The copolymer may be compounded with a rubber, e.g. a copolymer of acrylonitrile/butadiene, ethylene/methylmethacrylate, butadiene/methyl methacrylate, ethylene/ethyl acrylate ethylene/vinyl acetate or acrylonitrile/butyl acrylate; butyl rubber, polyethyl acrylate, nitrile rubber containing carboxy groups, neoprene or polybutadiene cross-linked with divinyl benzene.  The copolymer and rubber, e.g. acrylonitrile/butadiene copolymer may be in the form of a latex.  The copolymer may be dissolved in dimethyl formamide and spun into filaments or formed into fibres.
Patent GB-992428-A (GB)
Title: Improvements in or relating to respiratory apparatus for use in closed-circuit respiration
IPC: A62B9/02
Filed: 1962-04-30
Abstract: 992,428. Respiratory appliances. O. H. DRAGER, [trading as DRAGERWERK, HEINR. & BERNH. DRAGER]. April 30, 1962, [May 5, 1961], No. 16520/62. Heading A5T. In a closed circuit breathing apparatus the inhalation valve and a diaphragm-actuated oxygen supply valve are located in a common valve housing together with the diaphragm and the whole assembly is arranged externally of a breathing bag. The housing A is closed by a flexible diaphragm 15 to provide a chamber 9 and with its outer surface exposed to the ambient medium, while its inner surface bears on a rod 16 for controlling an oxygen supply valve 17. A port 8, in the housing A, communicates with the breathing bag and an inhalation valve 10 leads to a flexible hose 11 connected to the mouthpiece. For convenience, the exhalation valve 13 is also mounted on the housing but merely leads to a connection 14 to return exhaled air to a carbon dioxide absorber. A bleed orifice 20, by-passing the valve 17, is designed to pass sufficient oxygen for normal requirements but any greater demand results in the diaphragm 15 being drawn inwards with consequent opening of the supply valve 17.
Patent GB-544823-A (GB)
Title: Preparation of zirconium dioxide
IPC: C01G25/02
Filed: 1940-11-15
Abstract: 544,823. Zirconium dioxide ; electric arc heating. TITANIUM ALLOY MANUFACTURING CO. Nov. 15, 1940, No. 16543. Convention date, Dec. 8, 1939. [Class 1 (iii)] [Also in Group XI] Zirconium dioxide is produced by heating in an electric arc furnace a mixture of zirconium ore, e.g. zircon, baddeleyite &c. and carbon, e.g. as coke of high purity such as calcined petroleum coke, graphite &c., e.g. 1 part of coke to 5 of zircon may be used, forcing air to the vicinity of the arc during heating, and oxidizing the mass thus formed by exposure to the atmosphere e.g. after partial cooling and removal of un-re-acted material from the exterior of the re-action mass. The electric furnace used may comprise an asbestos-paper lined sheet-iron shell 11 on a cast iron bottom 13 on which is rammed a mixture of carbon and tar 14 to act as a hearth and to support and supply current to a hard carbon block 16 adjacent to which is a central electrode 20 vertically movable and with a central airpassage 21 along which a controlled quantity of air is forced via a hose 23. The block 16 may be substituted by zirconium cyanonitride or carbide, or the arc may extend directly from the hearth 14 to the electrode 20. After preliminary heating e.g. for 20 minutes zirconium ore and carbon are shovelled in in batches every 10 minutes until the furnace is full. The current is adjusted e.g. to 15,000 amps at 50 volts and after 32 to 36 hours air and current are shut off, the mass allowed to cool for 12 to 24 hours whereupon the shell 11 is removed the mass is cleaned as by a compressed air blast over its entire surface and transferred to an oxidizing grate. oxidation being facilitated as by blowing air thereto and agitation, the mass thereupon crumbling and falling through the grate, the product thus obtained may then be sieved to remove impurities which remain as lumps.
Patent GB-476809-A (GB)
Title: Improvements in and relating to methods of electric welding
IPC: B23K11/04
Filed: 1936-06-15
Abstract: 476,809. Electric welding. BRITISH THOMSON - HOUSTON CO., Ltd., and DONKIN, J. June 15, 1936, No. 16646. [Class 83 (iv)] Three welding electrodes 1, 2, 3 connected to the secondary windings of a three - phase transformer are used in electrically welding aT-joint 4, 5. The current density in all members is the same and the highest temperature generated in the neighbourhood of the joint. Electrode 3 is mounted on a slide and pressed up by a spring or air or liquid pressure. A supporting-member 7 consisting of metal strips separated by insulating material is provided between electrodes 1, 2 to prevent the part 4 being distorted by pressure.
Patent GB-282843-A (GB)
Title: Improvements in and relating to percussive tools
IPC: B25D11/06
Filed: 1926-07-02
Abstract: 282,843. Badcock, F. July 2, 1926. Percussive tools.-In a tool of the kind wherein a striker 15 is caused to oscillate in a straight line by the effect of rotating weights 16 mounted thereon, the transmitting member 25 is clear of the striker during idle running, being moved inwards, when the tool is pressed on the work, to an extent determined by an adjustable stop 29. A resilient split conical ring 28 is mounted between the member 25 and the casing, or a helical spring 31 may be used which keeps the member 25 just in contact with the striker during idle running. The weights 16 are rotated from an electromotor 5 through a coupling 10 connecting the shafts 6 and 9, and the striker is pressed downward by a short stiff spring 17 mounted between oollars 19, the upper one of which is rigidly fixed to the casing. The rotation of the striker about a vertical axis is damped by means of a friction ring 30 capable of rotating on the casing and having a slot in which engages a rod 32 attached to the striker.
Patent GB-518814-A (GB)
Title: Improvements in telephone systems
IPC: H04R1/14
Filed: 1938-06-03
Abstract: 518,814. Telephonic instruments and circuits therefor. BALLANTINE, S. June 3, 1938, No. 16696. [Class 40 (iv)] [Also in Group XL] A throat-operated transmitter is designed or is associated with a network or equivalent arrangement so that the overall frequency response of the microphone transmission circuit and receiving instrument rises with frequency when the microphone is vibrated at constant velocity. Preferably also a dip is produced in the characteristic at one or more resonance frequencies of the larynx by an electrical network or with the help of masses 9, Fig. 6, resiliently mounted on the diaphragm 1 of an electromagnetic microphone. Fig. 5 shows an amplifier in which a coupling transformer T1 resonant at about 4,000 cycles gives the generally rising characteristic and in which a dip is provided if necessary by a resonant circuit L, R3, C9. Specifications 374,120 and 518,815 are referred to.
Patent GB-754592-A (GB)
Title: Improvements in poppet valves for internal combustion engines and in methods of making such valves
IPC: F01L3/04
Filed: 1954-06-08
Abstract: 754,592. Coating with metals. GENERAL MOTORS CORPORATION. June 8, 1954 [June 29, 1953], No. 16707/54. Class 82(2). [Also in Group XXVII] A ferrous poppet valve is provided with a surface layer 17 of aluminium, or aluminium alloy, which does not exceed 0À0015 inch in thickness and is alloyed with the base metal of the valve. The coating 17 may extend over the whole valve head or may be provided only at the valve seat and is preferably covered by a further coating 16 of aluminium or aluminium alloy which does not exceed 0À004 inch in thickness. The surfaces of the valve to be coated are cleaned in a molten electrolytic caustic salt at a temperature of 900‹F., washed, and further cleaned in an aqueous solution containing about 2À0 per hydrofluoric acid, 7À0 per cent sulphuric acid and 10 per cent nitric acid. Mechanical cleaning methods may supplement the chemical cleaning and a stop-off coating of sodium silicate, which may have zirconium oxide added thereto, is applied to the parts of the valve which are not to be coated. The valve is then preheated in a fused salt bath consisting of 37 to 57 per cent KCl, 25 to 45 per cent Na Cl, 8 to 20 per cent N a3  Al F 6  and 0À5 to 12 per cent AlF3 and then immersed in a bath of molten aluminium or aluminium alloy at a temperature of about 1300‹F. for about ten seconds. The valve is rinsed in the fluxing salt and excess coating material is removed by an air blast whilst the valve is rotated rapidly, the resultant valve having an outer coating 16 of aluminium or aluminium alloy bonded to the valve by an inner coat 17 of aluminium or aluminium alloy alloyed with the valve metal. Some or all of the outer coating 16 may be removed by honing. Examples are given of steels suitable for the material of the valve.
Patent GB-704759-A (GB)
Title: An improved method of distributing telephone lines
IPC: H04Q1/14
Filed: 1950-07-05
Abstract: 704,759. Telephone subscribers' distribution networks. SPERONI, G. July 5, 1950 [April 4, 1950], No. 16744/50. Drawings to Specification. Class 40 (4) A terminal board for flexibly connecting incoming and outgoing lines of a subscribers' distribution network comprises two substantially identical halves, the terminals of one half being connected to all the a wires (both incoming and outgoing) and the terminals of the other half being connected to all the b wires. In each half of the board the incoming and outgoing terminals, which occur in equal numbers, are arranged in mixed distribution, connections between them being effected by metallic straps having a few fixed lengths. If there are more outgoing than incoming wires, the latter may be multipled over a plurality of terminals.
Patent GB-258552-A (GB)
Title: A hand appliance for use in washing surfaces
IPC: A47L1/08
Filed: 1926-07-05
Abstract: 258,552. Stone, F. G. Sept. 21, 1925, [Convention date]. Grip, facilitating.-In a device for use in washing surfaces comprising a water-receiving head 12 connected by a neck 20 to a water-delivering head consisting of two discs 25, 27, part of the palm of the hand rests against the disc 25 and the fingers, some of which engage the neck 20, are bent over the edge of the disc, to hold detachably a sponge, cloth, or like article against the perforated front disc 27. The neck 20 is of annular form to provide an opening for a finger and is formed internally with an annular passage communicating with the chambers in both heads of the device. In a modified construction the annular neck is wide enough to receive all four fingers.
Patent GB-165400-A (GB)
Title: Improvements in mercury vapour ejector pumps for high vacua
IPC: F04F9/00
Filed: 1921-06-20
Abstract: 165,400. Akt.-Ges. Brown, Boveri, et Cie. June 24, 1920, [Convention date]. Aspirating - apparatus, ejector.-Relates to a mercury-vapour pump wherein the mercury container h is heated, e.g. by a bunsen gas name i, and consists in the provision of a vertical unobstructed tube a as a conduit for the mercury vapour, the upper part of which has a cooling- water jacket g constituting it a condensing-chamber, and has the connection c to the preliminary-vacuum pump at the top. At the point where, by the normal air cooling of the walls, the mercury vapour first assumes the form of mist, there is an aperture l at right-angles communicating by a pipe b with the vessel &c. to be exhausted.
Patent GB-126065-A (GB)
Title: Improvements in and relating to Tail Planes of Aeroplanes.
Inventor: PETERS JAMES ARTHUR
IPC: B64C13/00
Filed: 1916-11-25
Abstract: 126,065. Peters, J. A. Nov. 25, 1916. Planes, arrangement of; steering and balancing. -The tail-planes of aeroplanes are arranged to be adjusted in incidence during flight, apart from the elevators, to accommodate variation in the load carried; means are provided also for adjustment of the incidence before flight. The rear end of the tail-plane is pivoted to a bracket a, which may be initially adjusted on the machine by means of a series of holes b, and the front spar g is connected to the straps f of eccentrics e mounted on a shaft c, which may be rotated by the pilot through cable or chain gearing, &c.
Patent GB-811978-A (GB)
Title: Self-propelled rail car, with bogie frames having at least three sets of wheels
IPC: B61F3/06
Filed: 1957-05-28
Abstract: 811,978. Electric locomotive driving gear. SCHWEIZERISCHE LOKOMOTIVUND MASCHINENFABRIK. May 28,1957 [May 31, 1956], No. 16939/57. Classes 79(1) and 79(3) [Also in Group XXXII] Railcar bogies Fig. 1 with a least three sets of wheels 4 have driving motors 5 arranged athwart the railcar and coupled to the axles through a series of gears 20, 21, 22 arranged in a vertical plane outside the railcar longitudinal centre. In an example two motors 5 are mounted on crossmembers 6, 7, Fig. 2, of the bogie 1 and the driving gears 20, 21, 22 are assembled in a common gear box 8 bolted to these cross-members. The gears 22 of the wheel axles contains sets of springs 25 (not shown) to provide a flexible cushioned drive. In modifications the motors may be arranged further apart away from the central pivot 18 by having gears 21 of different sizes or otherwise arranged out of symmetry. In an arrangement for a very short bogie frame 8, Fig. 7, each motorpinion 20 drives a single idle pinion 21 engaging two axle pinions 22. A similar arrangement is used with three motors Fig. 8 (not shown) for driving four sets of wheels. Specifications 544,185 [Group XXXII], 632,608 [Group XXIV] and 681,467 [Group XXXII] are referred to.