baber/WOPTO huggingface dataset:
Patent GB-284021-A (GB)
Title: Improvements in or relating to apparatus for the manufacture of pneumatic tyres
IPC: B29D30/06
Filed: 1926-10-22
Abstract: 284,021. India-Rubber, Gutta Percha. & Telegraph Works Co., Ltd., and Avery, W. L. Oct. 22, 1926. Moulding rubber tyres.-In apparatus for shaping tyres from flat bands in a known type of vacuum machine, the shaping and moulding and preferably also the vulcanizing are done in one operation without removing the tyre from the machine. In the illustrated form, which shows a machine for shaping, moulding and vulcanizing in one operation, the upper annular mould members B are carried bv an adjustable counterweighted head pivoted at B<4> to the cylindrical frame member A<2> and having a fluid-tight packing connection A<3> with the upper end thereof, while the lower mould members are carried by a table E adjustable vertically on a central guide A<5> through the medium of hand-operated sprocket and worm gear G<9>, G<4> respectively, and also having a fluid-tight flexible diaphragm connection D with the lower end of the member A<2>. A sheet E<1> of asbestos or like material shields the member D from heat radiated from the moulds. Steam is circulated through the movable mould members in all positions from a main supply pipe (not shown) communicating with a conduit B<12> in the hinge pin B<4>, conduit B<13>, upper mould steam chest B", conduit B<14>, a second separate passage in the hinge pin, flexible pipe E<6>, lower mould steam chest E<4> and exhaust pipe E<7>. To lock the mould members in the closed position, a locking ring is rotated by screw-mechanism in the frame member A<2> until inwardly-projecting lugs H<4>, H<5> engage with projections B<15> and E<8> respectively on the mould members and wedge them together. In operation the mould parts are separated by raising the counter-weighted head and the endless tyre band F dropped into position as shown. The head is lowered and the lower mould parts raised until the edges F<1>, F<2> of the tyre band are pressed into recesses in the mould parts. Air is then exhausted through the pipe A<9> and the lower mould parts raised gradually until nearly closed. At this stage an annular air bag is inserted in the partly formed tyre and the closure is then completed and the mould parts locked, after which air under pressure is supplied to the bag during the vulcanizing process. Fig. 7 illustrates a mould with a separate tread ring N which is moved radially inwards or outwards by toggle-mechanism N<4> connected to the mould parts. Where the vulcanizing forms a separate process, provision is made for the removal of the mould liners B<10> and the shaped tyre as a unit for insertion into the vulcanizing chamber. The recesses E<3> for receiving the edges of the tyre band may be separate members removable with the moulded tyre.
Patent GB-1277871-A (GB)
Title: Improvements relating to methods and apparatus for the measurement of length or rate of feed of moving material
Inventor: BOAST GORDON ERNEST
IPC: G01P3/66
Filed: 1968-06-04
Abstract: 1277871 Measuring continuous length G E BOAST and R WOOLLETT 4 Sept 1969 [4 June 1968] 26386/68 Heading G1M [Also in Divisions D1 and G4] Liquid is applied to a portion of a material, e. g. a yarn, during its travel and this acts on electric contact means to generate a signal which operates apparatus which records either the length of material fed from a source thereof or the rate of feed of the material or data enabling one of these to be calculated. Yarn is fed from one or more bobbins 1 or from a warp beam through a wetting device 22 to pairs of contacts 6, 7 and 8, 9 controlling a switch 17 and connected respectively by leads 12, 13 to a battery, amplifier and relay means. A counter 14 is connected to a reed switch 18 operated by a magnet 20 secured to needle bar 21. Device 22 comprises an absorbent pad 24 fed with liquid from container 28 and a solenoid 25 with a plunger 32. In operation, to check the yarn feedrate, solenoid 25 is energized causing plunger 32 to push yarn 2 into pad 24 causing a wet patch which passes over contacts 6, 7 and 8, 9 to close and open switch 17. When switch 17 is closed, movement of magnet 20 causes electrical pulses to actuate counter 14 and so counts the number of stitches form by the length of yarn between contacts 6, 7 and 8, 9. In a modification, Figs.4 and 5 (not shown), two side-by-side yarns may be measured by pairs of contacts on spaced heads, the contacts comprising pairs of adjacent inclined pins on whose intersection the yarn is supported. In a further modification, Figs. 6, 7 (not shown), switch (18) is actuated by a plate carried on the main cam-shaft (46).
Patent GB-1032659-A (GB)
Title: Improvements in or relating to means for discharging loads from aircraft in flight for example packs for parachutes
Inventor: COOPER DANIEL WAUMSLEY
IPC: B64D1/02
Filed: 1964-06-26
Abstract: 1,032,659. Dropping from aircraft. G.Q. PARACHUTE CO. Ltd. April 26, 1965 [June 26, 1964], No. 26466/64. Heading F3C. [Also in Divisions B7, E2 and F2] The static lines 25 (Fig. 1, not shown) of parachutes are attached by rings 24 to a cable 12 in an aircraft, the cable having a detachable portion to enable a series of static lines and parachute bags to be readily detached from the cable 12. The detachable portion comprises a tube 15 attached to the cable 12 by spring tongues 14 which fit inside the tube and are spread apart by a rod 16. The tube 15 is fixed to the aircraft by jaws 23 engaging a pin 28 on the tube. The jaws hold the rod 16 in engagement with the tongues 14, and the portion may be detached by opening the jaws 23 and pulling the rod axially by a link 20, e.g. by deploying a parachute attached to the link 20. As the static line rings slide on to the tube they pass one or more latches 26 which prevents their return.
Patent GB-1150728-A (GB)
Title: Improvements in and relating to Cathode Ray Tube Apparatus
Inventor: BELL ALBERT NOEL
IPC: B64D13/04
Filed: 1965-06-23
Abstract: 1,150,728. Cathode-ray tubes. SPECTO AVIONICS Ltd. 23 June, 1966 [23 June, 1965], No. 26568/65. Heading H4T. Electrical apparatus, particularly for use in aircraft and the operation of which is likely to be adversely affected by low ambient air pressure, is mounted in a container connected to a source of pressure air by valve means which prevents air escaping from the container if the pressure of the source should drop below that of the air in the container. In the described embodiment the electrical apparatus, comprising a cathode-ray display tube (not shown) the high voltage supply to which would be likely to give rise to corona &c. effects at air pressures corresponding to high altitudes is disposed in a container 15 Figs. 2 and 3) which communicates via hollow members 27, 18 forming part of the mounting means, and an adjustable spring-loaded valve 26, with a pressure air line 12 connected to the aircraft windscreen de-misting duct, the pressure in which is a few pounds above that of the cabin pressure. Thus, if the pressure in line 12 falls or if the assembly is removed from the main mounting means 14 by unscrewing bolt 19 the valve 29 prevents the escape of air in container 15. The low voltage connections to the tube are effected via a socket 32 and the E.H.T. is supplied via a connector (not shown) provided at an enlargement 33 of the container. The tube display, which is collimated by hermetically sealed lens system and displaced through 90 degrees by a prism (neither shown), is viewed by means of a pair of half-silvered mirrors 34, 35 disposed in the line of sight of the pilot.
Patent GB-1118061-A (GB)
Title: Improvements relating to synchronising apparatus for alternating currents
Inventor: PICKARD GORDON WILSON
IPC: H02J3/42
Filed: 1964-06-26
Abstract: 1,118,061. Synchronizing circuits. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. 24 Aug., 1965 [26 June, 1964], No. 26584/64. Heading H2H. A synchronizing circuit comprises a means for obtaining a waveform representing the rectified difference of two A.C. voltages to be connected together, means for converting the waveform into a square wave, and means for performing a control action when the square wave maintains its value for a determined interval. Transformers connected to the two supplies have secondary windings 2 connected in series opposition to a rectifier B1, the output of which is supplied through a diode D1 of an AND gate D1-D4 to a transistor T1 which gives a square wave output, the width of which is dependent on the amplitude of the input. The square waves are demodulated by a circuit including transistor T2 and passed to transistors T3, T4 connected as a Darlington pair to energize a relay coil RL1. A pulsating signal due . to beat frequency on D1 causes relay contacts RL1a to be operated and released periodically and if the period is less than two seconds, a timing circuit including transistors T5, T6 and capacitor C1 is periodically reset and relay RL2 is not energized to close a circuit breaker connetting the two supplies. Operation of the relays RL1, RL2 is prevented during transient conditions when the supplies are first connected by a circuit R15, R16, R21, C12 which forward biases T1 to conduction through diode D2, thus preventing RL 1 from being energized. A voltage measuring circuit to ensure both voltages are within determined limits comprises secondary winding-rectifier bridge combinations B3, B4 controlling amplifying transistors T7, T8 connected to diodes D3, D4 respectively. Resistors RV3a, RV3b are set so that below 80% of normal supply voltage the voltage across resistors R19 or R20 renders T1 conductive through diodes D3 or D4. A further circuit (Fig. 6, not shown) guards against loss of voltage on both supplies simultaneously. The voltages from the secondary windings 2 after rectification and smoothing may be added in parallel instead of in series (Fig. 6, not shown).
Patent GB-749534-A (GB)
Title: Improvements in or relating to devices for measuring areas
IPC: G01B5/26
Filed: 1953-09-28
Abstract: 749,534. Area meters. HARRISON, J. T., and EUSTACE, S. A. Sept. 6, 1954 [Sept. 28, 1953], No. 26638/53. Class 106 (1). A device for the direct measurement of rectangular areas comprises a triangular sheet of transparent or opaque material marked with a series of hyperbolic curves b extending between the hypotenuse c and perpendicular d of the triangle, the origin e of the curves coinciding with the intersection of the hypotenuse and base of the triangle. The curves denote areas and are marked accordingly, e.g. in marginal portions f of the sheet. A rectangle i to be measured is placed with one corner over the point e of the device and with one side in register with the base of the triangle, whereupon its opposite corner k will register with the curve corresponding to its area.
Patent GB-203546-A (GB)
Title: Cutter head for wood working machines
IPC: B27G13/04
Filed: 1922-10-03
Abstract: 203,546. Schimmel, F. Oct. 3, 1922. Cutters.- The knives of a cutter block for wood-planing or like machines are made of thin tempered steel blades 6 which are clamped by blocks 7 in helical channels in the block. Each block engages the blade at four points 7<a>, but engages the opposite wall of the channel at one point only 7b, situated near the periphery of the block. A tool may be inserted between adjacent blocks to lift the blade.
Patent GB-229260-A (GB)
IPC: H03B19/03
Filed: 1924-11-11
Abstract: 229,260. Lorenz Akt.-Ges., C., (Assignees of Schmidt, K.). Feb. 13, 1924, [Convention date]. Frequency, changing. - The efficiency of a frequency-multiplying arrangement in which a high-frequency generator H is coupled with a part of an inductance coil S in the primary circuit of the frequency transformer T is improved by connecting a condenser K in parallel with tho coil S, the circuit KS being tuned to a multiple of the primary frequency.
Patent GB-704153-A (GB)
Title: Improvements relating to resilient gear wheels and other angularly movable members
IPC: F16D3/70
Filed: 1950-11-06
Abstract: 704,153. Resilient mounting for gear-wheels and the like. BROWN & SONS (HUDDERSFIELD), Ltd.. D. (Richardson Gears Proprietary. Ltd.). Nov. 6, 1951 [Nov. 6, 1950], No. 26994/50. Class 80 (2) A gear-wheel or the like comprises an annulus a with an inwardly projecting flange a<SP>1</SP>, and is received within a circumferential groove b formed by a flange c<SP>2</SP> on a wheel centre c and a separate ring d secured to the centre c by bolts e. Driving pins g accommodated in aligned holes f in the flange c<SP>2</SP> and ring' d pass through enlarged holes in the flange a'. Around the pins g and between metal tubes j, k, are a series of trapezoidalsectioned rings i of rubber or like material. The rings i are assembled under compression and have an axial thickness which is less at the outer periphery than at the inner periphery.
Patent GB-319275-A (GB)
Title: Method of and means for treating plastic materials
IPC: H01B1/04
Filed: 1929-09-05
Abstract: 319,275. Gravier, P., and Compagnie Lorraine de Charbons pour l'ElectricitÚ. Sept. 19, 1928, [Convention date]. Processes; presses; extrusion machines.-Plastic materials, particularly for electrode carbons, are subjected to a scavenging process by a gaseous or liquid fluid before compression, in order to eliminate air. The fluid may be a mixture of fluid and vapour of the same or of different kinds, e.g. steam, water and steam, petroleum ether and its vapour or petroleum ether and steam. After scavenging, vacuum may be applied to remove the fluid. Apparatus for forming shaped blocks comprises a mould M furnished with tightly-fitting pistons P', P<2>. Apertures T<2> are formed through the piston P<2> and terminate in pipes A<2> through which scavenging fluid is introduced via cocks R<2>. The upper piston P<1> is apertured at T<1> and fitted with pipes A<1> and cocks R<1> through which the air and fluid are withdrawn. In use, the mould is charged with material and the pistons introduced, after which scavenging-fluid is circulated through the mass to displace any air, with or without the application of heat; the cocks R<2> are then closed and vacuum applied: finally the cocks R<1> are closed and the pistons moved towards each other to compress the material. For making threads, an extrusion press is fitted with a piston having connections for admission of scavenging fluid and is furnished near the die with outlets for the fluid &c. A gate closes the entrance to the die during scavenging and compression.
Patent GB-1307415-A (GB)
Title: Sealed watch-case with leakage indicator
IPC: G04B37/02
Filed: 1970-06-04
Abstract: 1307415 Watches E PIQUEREZ 4 June 1970 [4 June 1969 28 Nov 1969] 27071/70 Heading G3T An indicator for monitoring the seal in a sealed watch case comprises a members which is displaceable in the event of a change in the pressure differential between the interior of the case and a secondary, sealed compartment. Fig.3 shows an evacuated watch case in which the displaceable member is a piston 15 slidably mounted in a tube 14 which is screwed into the case. The interior of tube 14 is sealed at a low-pressure by a glass 16 and loss of vacuum in the case causes the piston 15 to move upwardly so that a battery 19 comes into contact with a lamp 18. If seal 24 is non- conducting, the circuit is completed through a spring blade contacting the tube and piston. The lamp and battery may be omitted and the indication given by a coloured neck (11) Fig.1 (not shown) on the piston. Alternatively the indicator may comprise a membrane (32) Figs.5, 6 (not shown) whose curvature is altered by loss of vacuum or which becomes distorted by pressure from a plastics piston (29) Fig.4 (not shown) to change a pattern of Newton's rings. Other indicators are referred to in which the displaceable member is a plug of liquid in a capillary tube within the watch case, the position of the plug providing an indication in a window.
Patent GB-1134710-A (GB)
Title: Electrostatic recording devices
IPC: H01J31/06
Filed: 1966-06-17
Abstract: 1,134,710. Electrostatic recorder. TOKYO SHIBAURA ELECTRIC CO. Ltd. 17 June, 1966 [25 June, 1965; 10 July, 1965; 24 July, 1965; 31 July, 1965], No. 27193/66. Heading H4F. [Also in Divisions G2 and H1] In an electrostatic recorder a vessel containing developing powder for converting latent electrostatic images to visible ones is replenished by using a magnetic brush and electrically charged conveying member to transfer developing powder to the vessel from a supplementary vessel containing an electrically charged mixture of the powder and a magnetizable carrier substance. In the Fig. 4 embodiment the stirring action of a rotary magnetic brush 57 charges resin powder and the carrier (powdered iron) with opposite polarities and carries the mixture from supplementary vessel 53 to a conveyer belt or metal roller 55 electrically charged by source 61 with a polarity opposite to that of the resin. Developing powder is then removed from the belt or roller 55 by the attraction of charged carrier on a second magnetic brush 56, the charge on roller 55 being reduced in synchronism with the approach of brush 56 to its surface. Alternatively, the powder may be removed from roller 55 by a vibrating scraper (Fig. 5, not shown). For producing the latent image in a facsimile recorder, electrodes 23 (Fig. 1) on a printed circuit board 20 are energized sequentially via distributer segments 22 to give a complete line of the image on a record medium moved normally to the line of electrodes 23. The segments 22 are scanned by a rotary brush or by the beam of a cathode-ray tube in which the board 20 forms the tube face-plate.
Patent GB-1063457-A (GB)
Title: Arrangement and apparatus for the combustion of liquid or gaseous fuels
IPC: F23C99/00
Filed: 1964-07-01
Abstract: 1,063,457. Burners. W. BRÍDLIN. July 1, 1964 [July 1, 1963], No. 27247/64. Heading F4T. A gaseous or liquid fuel burner comprises a centrally located atomizing nozzle 4 surrounded by an air inlet which is provided with longitudinally adjustable swirl vanes 3. In use about 25% of fuel is supplied to the nozzle 4 with just sufficient air for complete combustion so that the vaporizing chamber 8 becomes hot, the full fuel supply is then fed to the burner so that with insufficient air inside the chamber 8 the flames spread to the outside of the radiant grid 9 to heat the mesh 11.
Patent GB-276862-A (GB)
Title: Device for securing motors employed with jigging conveyors
IPC: B65G27/08
Filed: 1926-11-01
Abstract: 276,862. Sklenßr, A. Nov. 1, 1926. Jigging conveyers. The baseplate 1 of the actuating motor 2 is connected by a tension device 3 such as a screw coupling, to an eye socket 4 which is pressed against the ground by an obliquely-disposed prop 7. A tension device may be secured to each side of the baseplate, or a single tension device arranged at one side may be connected to the centre of the end of the baseplate by a pivoted member 8, Fig. 4. In a modification a centrallydisposed tension device is connected to a plate provided with two laterally-arranged sockets.
Patent GB-272983-A (GB)
Abstract: 272,983. Pirelli & Co., and Emanueli, L. March 17, 1926. Cables, arrangement and disposition of parts of. - Comprises improvements in oil-insulated high tension cables having one or more cores consisting in providing, in the interior of the conductors or between the insulation round the conductors and the lead sheath or in the spaces between the cores of the cable, feeding cavities or channels in place of feeding tanks separate from the cable. The walls of the cavities or channels are electrically conductive and permeable to the impregnating compound. The dimensions of the cavities are such that the requisite amount of impregnating compound can be supplied to compensate for the maximum diminution in volume of the compound in the insulation. Several constructional examples are described, one group constituting a type having longitudinally arranged channels and another group constituting a type having helical channels formed round a core. In one example of the second group, Fig. 3, an L-shaped tape 2 of metal is helically wound round a central core 1, covered with paper, and is enclosed by a tube 3 of paper or the like or a discontinuous metallic layer permeable to the compound, the feeding cavities 4 being between the turns 2. Figs. 6 and 8 show such a type in position in a cable. Alternatively such helical channels may be situated between the cables and the sheath as shown in Fig. 10. The longitudinal channels of the type shown in Fig. 1 have the walls constricted at intervals. In the example shown in Fig. 7 the cavities 4 are built up by using a lead sheath, the inner surface of which is constructed with corrugations to form channels between the insulation and the lead sheath, the corrugations being interrupted at intervals by a helical winding 8 of jute, cotton &c. wound over the insulation 7. The impregnating compound employed is a thick oil or compound in place of the light oils, so that while it may be readily absorbed by capillary action it does not easily flow along the cable.
Patent GB-1023979-A (GB)
Title: Improvements relating to printed circuit card connectors
IPC: H01R12/50
Filed: 1964-07-02
Abstract: 1,023,979. Two-part couplings. INTERNATIONAL BUSINESS MACHINES CORPORATION. July 2, 1964 [July 30, 1963], No. 27305/64. Heading H2E. A printed circuit card connector comprises a plurality of resilient socket contacts 37 soldered to the edge contacts of the card and held under spring tension by a housing 47 which is removably held on the card by a snap action device 99 having a resilient detent 97 which bites into the edge of the card when an attempt is made to move it. When the housing is placed on the card, the gold-plated tips 71 of contacts 37 push against the walls 115 which have openended grooves therein to receive pins 65 which are soldered in holes in the base board to which electrical connection is to be made. The two end walls of the housing 47 have asymmetrically placed U-shaped notches to receive flattened oval locators, Fig. 1 (not shown). These locators fit over two of the pins on the base board and ensure that the cards can only be mounted on the board in a predetermined arrangement. In a modification, Fig. 8, the snap action device can be incorporated in the contacts by forming a spring catch portion 125 which snaps behind a rail 149 moulded integrally with the housing 127. In a third embodiment, Fig. 10 (not shown), the bights of the U-shaped contacts are soldered to the card and the two legs project sideways from the card and engage opposite sides of a square or round pin inserted through the base of the housing as in earlier embodiments.
Patent GB-206334-A (GB)
Title: Improvements in or relating to pads or the like for cleaning the hands
IPC: A63B57/00
Filed: 1922-10-09
Abstract: 206,334. Moore, M. A. Oct. 9, 1922. Pouches.-A pad 5 of sheepskin or other material is sewn to a leather or like backing sheet 1 so as to form a pocket for a golfer's score card. A smaller pocket to hold a pencil 4 may be formed. by sewing to the backing a piece of tape 3. Specification 2297/14, [Class 19, Brushing &c.], is referred to.