baber/WOPTO huggingface dataset:
Patent GB-1090374-A (GB)
Title: Improvements in or relating to electric signal repeater circuits
Inventor: SMITH GEORGE MITCHELL
IPC: H04B17/40
Filed: 1964-07-01
Abstract: 1,090,374. Repeater fault finding. GENERAL ELECTRIC CO. Ltd. June 24, 1965 [July 1, 1964], No. 27165/64. Heading H4R. In a repeater including separate amplifiers for each direction of transmission a switching circuit is arranged, on operation by a control signal from one terminal station to interconnect the output of the "go" amplifier to the input of the " return " amplifier and to disconnect the normal input to the return amplifier so that signals from that terminal station have their direction of transmission reversed at that repeater and are returned to that terminal station so that the performance of the individual repeaters may be checked. Two embodiments are described. Fig. 2 shows one embodiment in which p.c.m. signals in one direction of transmission are fed to an amplifier, represented by box 1, via terminals 2, the output being fed to the line for onward transmission via terminals 4. P.o.m. signals in the other direction of transmission are applied via terminals 16 to amplifying stages 8, 9, and 10 and then via terminals 17 to the line for onward transmission. The control signal for testing purposes comprises bursts of pulses, each burst comprising alternate positive and negative going pulses of equal height at the p.r.f. of the system, with the bursts having an audio repetition frequency characteristic of the particular repeater it is desired to control. The control signal is transmitted over the system in the normal way and is amplified by amplifier 1 where the pulses are full wave rectified by diodes 39, passed through the L.P. filter, and applied via winding 34 to a transformer tuned to the burst repetition frequency characteristic of that repeater. Signals appropriate to this repeater are selected, by tuned circuit 35, amplified by transistor 37 and provide, via rectifier 43, a bias to turn on transistor 25 to complete a path from the output transformer 5 of " go " amplifier 1 to the input transformer of "return" amplifier 8, 9, 10. Turning on of transistor 25 also back-biases the normally conductive diode 18 and so isolates the input of amplifying state 8 from the transformer 7, and therefore from the incoming line. In an alternative embodiment, Fig. 1 (not shown), the control signal is applied as an audio signal to the phantom circuit of the " go " and " return " lines, which circuit also provides the power supply to the repeaters, and the control signal is fed to the tuned amplifier by connecting the input winding, e.g. 34 in Fig. 2, in series with the phantom circuit.
Patent GB-1121471-A (GB)
Title: Improvements in and relating to sunken swimming pool
IPC: E04H4/00
Filed: 1965-06-28
Abstract: 1,121,471. Swimming bath. THERMACIER. 28 June, 1965 [3 July, 1964], No. 27203/65. Heading A4N. A sunken swimming pool comprises a metal or plastics lining having stepped walls 6 and a floor 3, which lining is embedded in an excavation 1 formed in the natural ground with interposition of a mass of sand 2. The floor 3 is formed from rectangular plates A and the walls from profiled elements B, E and D or L-section elements G, Fig. 7 (not shown). Adjacent elements are riveted to a joint cover 18. Adjacent walls have corner elements C and moulded compensating elements F, Fig. 2 (not shown), inserted between them. The walls 6 are anchored at the top in a reinforced concrete paving 16, which may have a raised part 41 overlying a wave breaker 42, Fig. 10 (not shown), and may support starting blocks, masts, water lines or water polo goals. A perforated vertical partition wall 71 may be connected to the bottom half step 11 with a flooring 10 covering the enclosed space.
Patent GB-686456-A (GB)
Title: A non-resonating transformer
IPC: H01F27/34
Filed: 1949-10-24
Abstract: 686,456. Transformers. CESKOSLOVENSKE ZAVODY TEZKEHO STROJIRENSTI, NARODNI PODNIK, HELLER, B., VEVERKA, A., and HLAVKA, J. Oct. 24, 1949 [Nov. 11, 1948], No. 27238/49. Class 38 (ii). In order to improve the voltage distribution under surge conditions, along the high voltage winding 1 of a transformer the winding is provided with a tapping point 5 connected through a condenser 4 or a condenser and a resistance 7 to the high voltage terminal 2 of the winding. Specifications 173,606, [Class 38 (ii)], 393,770 and 426,561 are referred to.
Patent GB-533066-A (GB)
Title: A process for the production of aliphatic dicarboxylic acids
IPC: C07C51/31
Filed: 1939-10-05
Abstract: 533,066. Dicarboxylic acids. NAAMLOOZE VENNOOTSCHAP DE BATAAFSCHE PETROLEUM MAATSCHAPPIJ. Oct. 5, 1939, No. 27246. Convention date, Oct. 8, 1938. [Class 2 (iii)] Aliphatic di-carboxylic acids are produced by the oxidation of cyclic alcohols with nitric acid of 4-24 per cent. strength at above 50C., and if desired in the presence of an oxidation catalyst such as vanadic. The process is effected continuously, nitric acid of higher strength being supplied and reaction liquor withdrawn continuously so as to keep the concentration of nitric acid in the reaction mixture within the limits stated. The acid and alcohol are supplied from vessels 1, 2 to a reaction chamber 3 having a stirrer 4, heating-coil 5 and reflux condenser 19. Nitric acid is distilled from the withdrawn liquor in a column 6 and the di-carboxylic acids are separated by crystallization. The invention is described with reference to the oxidation of cyclopentanol to glutaric acid, but the following alcohols are also mentioned as suitable initial materials, viz. cyclobutanol, 2-methylcyclobutanol, 3-methylcyclopentanol, gem. dimethyl cyclopentanol-3, cyclohexanol, gem.' dimethyl and gem, dibutyl cyclohexanols, 3-nitrocyclohexanol, #.<SP>3</SP>-cyclohexenol, and cycloheptanol.
Patent GB-1532263-A (GB)
Title: Transport apparatus for gripping and holding a spinning cop
IPC: D01H9/00
Filed: 1976-06-30
Abstract: 1532263 Cop transport SCHWEiTER ENG WORKS Ltd (MASCHINENFABRIK SCHWElTER AG) 30 June 1976 [3 July 1975] 27251/76 Heading DIF In a transport apparatus for gripping cops to transport them in automatic winding machines, the cop is gripped by advancing it along an axis into engagement with a centreing cone and into engagement with a circular array of clamping jaws on pivotal levers which are spring-biased for outward pivoting, further cop movement causing the jaws to pivot to a closed position to additionally engage the cop. In a winding machine, Fig. 2, conveyor 15 moves a cop 14 from a storage bin to position 15', grippers (16) lift the cop and swing them about shaft 17 to station 19, where a transfer tail is unwound and then to station 20 for placement ir indexable magazine 13. The magazine positions cops for transfer to winding stations 11 an indexable turntable 10. The grippers 16, Fig. 3, comprise three jaws 21 each pivoted at 25 to an arm 23 and urged outwards by springs 27. Arms 23 are pivoted to spider 22 at 26 and are urged outwards by spring 31 against bell 30. Spider 22 has extension 28, 36 which is urged upwards by spring 37 and which is positioned by rocking lever 43. To grip a cop, Fig. 4, conveyor 15 (Fig. 2) raises a cop to engage and be centred by cone 32 downwardly biased by spring 34. Raising of the cop engages its end with rubber or plastic jaw inserts (shown hatched) and pivots the jaws until the Fig. 5 position is reached. The jaws moved slipped thread windings downwards onto the wound cop. Shaft 17, Fig. 3, is then rotated to carry the gripped cop on arm 38 to stations 19 and 20 With shaft rotation, stop 44 abuts stationary stop 45 to rotate shaft 40 and cam 41 to pivot arm 43 anti-clockwise so that spring 37 lifts the spider 22 and applies a predetermined clamping force to the jaws. At station 20 another stop 43 rotates the cam and arm 43 moves the spider downwards so that the arms fly open to the Fig. 6 position. Arm 38 may be adjustably positioned along shaft 17, which may be raised during rotation. Alternatively, the jaws may be lowered, possibly while the cop is being raised, to grip the cop.
Patent GB-1450499-A (GB)
Title: Sealing strip in particular for motor vehicle bodies
IPC: B60J10/16
Filed: 1974-06-20
Abstract: 1450499 Sealing strip FORD MOTOR CO Ltd 20 June 1974 [5 July 1973] 27317/74 Heading E1J A sealing strip 1 particularly for motor vehicles has a zone of the sealing portion 6 which is sub-divided into 0.5-5mm. sections 9 by cuts 8 where it may come into contact with a stepped portion of the face of the bodywork 7. The sub-divided zone is re-inforced by an adhesively attached strip 10.
Patent GB-1162966-A (GB)
Title: A Measuring Device
IPC: G01B21/06
Filed: 1968-06-07
Abstract: 1,162,966. Selective signalling. SIEMENS A.G. 7 June, 1968 [12 Aug., 1967], No. 27327/68. Heading G4H. The length of thread 1 fed by a pulley 2 is measured by shaping and integrating 4 pulses from a Hall plate co-operating with a magnet 3 rotated by the pulley, so as to produce a D.C. potential corresponding to the speed of the pulley, which potential is applied to a variable speed motor 5 which drives a counting mechanism 6. The counter can be preset to a required length and used to control 7, stopping of thread feed when the required length has been fed.
Patent GB-729282-A (GB)
Title: Improvements in switches or points for mono-track railways
IPC: E01B25/12
Filed: 1953-10-06
Abstract: 729,282. Mono-rail railway switches. ALWEGFORSCHUNG GES. Oct. 6, 1953 [Oct. 6, 1952], No. 27380/53. Class 104 (1). A switch for a mono-rail railway has two or more rails 2, 3 mounted on a plate 1 pivotal about a stud 4 and supported on wheels or rollers 5, 6 and 7 running on rails 8 mounted on a base 9. The plate 1 can be locked in position by elements 10. The plate 1 may be reinforced concrete. The switch may be operated and locked in its limiting position by an electric motor which may also indicate the switch position at a remote point.
Patent GB-237477-A (GB)
Title: Improvements in or relating to loud speaking telephonic apparatus
IPC: G10K11/02
Filed: 1924-11-17
Abstract: 237,477. Graham, E. A. Nov. 17, 1924. Loud-speakers.-Loud-speakers comprising a receiver, a horn, and a base piece are so constructed and arranged that in one position the receiver and horn can be supported by the base piece alone on a table &c. with the horn inclined to the horizontal, and in the other position the base piece and receiver can be caused to bear on the table &c. to maintain the horn in an upright position. The base piece b is provided, in addition to its normal under-surface h, with a surface b<1> cut or formed at right-angles to the axis of the horn c so that the horn is upright when the instrument is placed as shown in Fig. 2. The base piece b may be integral with the receiver casing a or detachable therefrom, and secured to it by a screw g, Fig. 3, and screwed hole a<3>, or by a finger screw fitting a screwed boss on the casing. Specification 247,281 is referred to.
Patent GB-247885-A (GB)
Title: Improvements in and relating to metal profile bars
IPC: E02D5/04
Filed: 1925-03-09
Abstract: 247,885. K÷hler, W. C. March 9, 1925. Piling.-A metal profile bar specially adapted for the construction of hollow sheet piles of the kind described in Specification 208,022 consists of a flat body portion 3 with one edge flanged to form a projection 4 and the other edge flanged twice as shown to form an angular projection 5, and two integral ribs 6, 7 on the same side as the projections 4, 5. Two such sections may be welded or otherwise united at 8, 9 to form a hollow pile of which the projections 4 are adapted to engage the projections 5 of an adjacent pile. Parts 10, 11 cut from a similar bar may be riveted to the pile to form projections to engage the angular projections of another pile forming part of a wall at right angles to the first wall.
Patent GB-761017-A (GB)
Title: Improvements in or relating to hose coupling devices
IPC: B60T17/04
Filed: 1954-09-23
Abstract: 761.017. Hose couplings. AUTOMOTIVE PRODUCTS CO., Ltd. Sept. 19, 1955 [Sept. 23, 1954], No. 27547/54. Class 99(1) In a hose coupling device 15, a coupling part 17 is fixedly mounted on one of two separable units, e.g. a tractor and a trailer, and a second coupling part 18 is secured to the free end or ends of a hose or hoses 14 attached to the other unit, there being a lever 35 on the part 17 operable to engage and position the parts in coupled relation, and a latch 43 on the part 18 resiliently urged into latching engagement with the lever when the parts are coupled. A tension member is connected to the latch and the said other unit so that upon separation of the units that member operates the latch to release the lever and allow separation of the parts 17, 18. As shown, the socket part 17 is provided with two passages 19, 21, Fig. 6, in which are mounted spring-loaded valves 22, 23, and the plug pant 18 incorporates bores 32, 33 to one end of which the hoses 14 are connected; tubular members 24, 25 at the other ends of the bores have lateral ports 26 closed by spring loaded sleeves 27, 28. Upon insertion of the part 18 into the part 17 the valves are contacted and opened by the members 24, 25 and tubular inserts 29, 31 in the part 17 push back the sleeves 27, 28 to uncover the ports 26. The lever 35 which is pivoted on the part 17 and about an axis 34, is forked, each limb being formed with a lug 36 movable through a slot 37, in the wall of the part 17, and is provided with two depressions 39, 41 which co-operate with a spring-loaded ball mounted in the lug 38 carrying the lever and to retain the lever in either of two positions. The latch 43 is pivotally mounted at 44 on the part 18 and is provided with a notch 45 to co-operate with a pin 46 extending between the limbs of the lever 35, a spring 47 urging the latch about the pivot 44 and in a clockwise direction as seen in Fig. 4. In coupling the parts. together, after the part 18 is inserted in the part 17, the lever 35 is moved in a clockwise direction so that the lugs 36 of the lever bear on the inner wall of a groove 48 formed in the part 18, the limbs of the lever passing one on each side of the latch 43 and the pin 46 riding on a cam surface 49 on the latch and dropping into the notch 45 whereby the coupling parts are held securely together. Tension applied to the cable 16 extends the spring 47 and rotates the latch 43 to move the notch 45 clear of the pin 46 thus allowing the lever to move in an anticlockwise direction and so release the part 18 from the part 17. Manual operation of the coupling parts may be effected by manipulation of the latch 43. Upon separation of the coupling parts, any pressure which may exist in the bore 32, or 33, is relieved by a plunger 52, Fig. 4, slidable in a bore 53 in the part 18. In an alternative form, the lever 35 is not forked and lies to one side of the latch 43, a single lug 36 being provided.
Patent GB-823592-A (GB)
Title: Aircraft powered by turbo-prop engines
Inventor: DAVIDSON IVOR MACAULAY
IPC: B64C9/38
Filed: 1955-09-28
Abstract: 823,592. Jet propulsion plant. POWER JETS (RESEARCH & DEVELOPMENT) Ltd. Sept. 14, 1956 [Sept. 28, 1955], No. 27599/55. Class 110 (3). [Also in Group XXXIII] The nozzle 17a of a turbo-prop engine is shown in vertical section, and is of fish-tail shape in plan. An adjustable flap 7 is disposed so that the exhaust gas stream always follows the upper surface of the flap. A part 20 of the nozzle is pivoted at 21 and is operable by an hydraulic jack 22, so that the area of the nozzle may be varied. The propeller may be of variable pitch, and the flaps 7 and 20 may be deflected downwardly while the pitch of the propeller is reversed to obtain a high lift and a braking effect. This may be done automatically by a device responsive to drop in airspeed. Specifications 595,357, 787,011, [Group XXXIII], 787,012, 790,193, [Group XXXIII], 790,298, [823,591 and 823,593, [both in Group XXXIII]], are referred to.
Patent GB-1316783-A (GB)
Title: Electrically operated valve apparatus
IPC: F16K31/04
Filed: 1970-06-08
Abstract: 1316783 Valves K FUJIWARA 8 June 1970 [7 June 1969 20 Sept 1969 (2) 11 Oct 1969] 27658/70 Heading F2V A rotary ball valve 1 is actuated by an electric motor 23 which is controlled by a circuit having a control switch 38, a relay 25 and a limit switch 33 actuated by diametrically-opposed cam surfaces (31), (32) on a coupling piece 27 between the motor shaft 26 and the valve stem 15. When switch 38 is closed solenoid 36 is energized to move contact 25C on to contact 25A and the motor is thus energized via switch 33. When the ball 6 assumes open/closed position switch 33 is actuated to move contact 33C on to contact 33B, the motor thus being de-energized. When the switch 38 is opened contact 25C moves on to contact 25B and the motor is thus energized to rotate the ball to closed/open position when switch 33 is again actuated to de-energize the motor. The valve housing 2 has a spring- loaded seat 9 on one side of the ball and is clamped to a structure 18 by a member 19 with a clamping screw 20, an insulating band 21 being provided. The valve is manually set by member 29. Instead of the switch 33 a double-pole double-throw switch (40) may be provided if the motor is reversible. Alternatively switch 33 may be replaced by spring-loaded brushes bearing on interrupted conducting strips about the coupling piece 27. The circuit may be modified to include two relays (53), (55), each of which has a holding circuit to allow the motor to complete the opening/closing movement of the valve even if switch 38 is operated during such movement. In a modification the motor is connected to the valve stem by a one-way coupling (27<SP>1</SP>) having complementary teeth on the end of opposed sleeves and is controlled by a circuit having a double-pole control switch (80) and two doublepole switches (82), (83) which are operated by diametrically opposed recesses or projections (62), (63) on the coupling. The latter switches may be replaced by spring-loaded brushes bearing on an interrupted conducting strip about the coupling.
Patent GB-845227-A (GB)
Title: Improvements in turbine blades and methods of manufacturing same
Inventor: STEWART ALEXANDER
IPC: F01D5/18
Filed: 1957-09-02
Abstract: 845,227. Making turbine blades; extruding. ROLLS-ROYCE Ltd. Sept. 2, 1958 [Sept. 2, 1957], No. 27686/57. Classes 83 (2) and 83 (4). [Also in Group XXVI] A turbine blade (see Group XXVI) is formed by drilling a number of longitudinal and oblique passages 11, 13 respectively, from one end face of a billet, extruding the billet so that the passages assume an elongated cross-section and forming the blade by machining or forging so as to be of a desired aerofoil surface in which the oblique passages terminate, machining a cavity 18 adjacent the tip of the blade from which the passages are drilled and closing the cavity by a cap. The passages are filled with a filler material, such as mild steel, before extrusion of the billet and the filler removed, after final machining of the blade, by nitric acid. Specification 826,498 is referred to.
Patent GB-763454-A (GB)
Title: Improvements in and relating to refrigerator cabinets
Inventor: BUNCE DONALD ARTHUR
IPC: F25D23/00
Filed: 1953-10-09
Abstract: 763,454. Refrigerators. ENGLISH ELECTRIC CO., Ltd. Oct. 8, 1954 [Oct. 9, 1953], No. 27826/53. Class 29 In a refrigerator cabinet having an upper storage compartment 2 and a lower machine compartment 3, the latter is defined by extensions 1 of the outer shell of compartment 2 and by arched rear and front panels 6, 7 and is reinforced by an arched shallow channel 4 having front and rear flanges 4a welded to the panels 7, 6 and inturned bottom flanges 4b welded to inturned bottom flanges 1b of the sides 1. The sides 1 have front and rear flanges 1a welded to the panels 7, 6 and the inturned flanges 4b are formed with feet 5. A facing strip around the storage compartment is held between flanges 1a and 1c on the side panels and between front panel 7 and a rail 10 welded to corner gussets 9 and to the flat upper surface of channel 4.
Patent GB-637234-A (GB)
Title: Improvements in and relating to the manufacture of shoe soles with a raised marginalpart from leather or some similar material
IPC: A43D35/00
Filed: 1946-09-17
Abstract: 637,234. Mechanical presses. BATA NARODNI PODNIK. Sept. 17, 1946, No. 27832. Conventicn date, Oct. 6, 1943. [Class 87 (ii)] [Also in Groups VII, XVI and XXVI] In the manufacture of sandai soles having a raised marginal edge, a press, after preliminary shaping, finish presses the marginal edge to final shape. The upper die of the press is mounted in a known manner in a clamping device having a fixed part 3, and a lower part 4 which can be adjusted by the hand wheel 6 to displace the wedge 5, to vary the pressure, when the matrix 2 is raised. The edge press consists of a marginal mould 17, slipped over the die 1 so as to be displaceable thereon and of the exact shape of the raised marginal part of the work, which is held clear of the work edge during preliminary pressing by the springs 18, 18'. Pegs 14 rest on bearing surfaces 16 and are inserted in a plate 13 kept by spring 15 against the wedge 8. The wedge 8 is connected to a piston 10 of a pneumatic cylinder 11 hand-controlled by a four-way cock 12. Tn operation, the blank 20 is inserted between the die 1 and the matrix 2 with the wedge 8 in the position shown. The matrix is raised and held to give initial pressing and to shape the blank. The cock 12 is then operated to admit fluid to push the piston 10 and wedge 8 to the right. The wedge acting against the fixed parts 3, 4 pushes the plate 13 and mould 17 down against the springs 15, 18, 181 and the raised margin is pressed to finished shape. The operation can be made partly automatic by control of the fourway cock 12 and the machine can be fitted with separate operative stations for left and right sandal soles.
Patent GB-459561-A (GB)
Title: Improvements in the draft gearing of spinning frames
IPC: D01H5/36
Filed: 1935-10-09
Abstract: 459,561. Roller-driving gear for producing slub yarn. YORK STREET FLAX SPINNING CO., Ltd., CRAWFORD, J. G., and McKIBBIN, A., Henry Street, Belfast. Oct. 9, 1935, No. 27843. [Class 120 (ii)] A differential is introduced in the draft gearing of spinning-frames, particularly wet frames for flax, of which the sun-wheel F is intermittently rotated by a clutch-wheel G operated by a lever K controlled by a pattern chain M, whereby the back roller shaft R<1> is accelerated at intervals relatively to the front roller shaft R to form slubs in the yarn.
Patent GB-731849-A (GB)
Title: Improvements in or relating to spinnerets for the manufacture of man-made filaments
IPC: D01D4/02
Filed: 1952-11-05
Abstract: A spinneret for the extrusion of artificial filaments comprises a metal face over 1.5 mm. thick having spinning orifices each comprising a cylindrical portion extending inwards from the outer surface of the metal face and a coaxial truncated conical portion whose base is situated in the inner surface of the metal face, the length of the cylindrical portion being less than 5 per cent of the total thickness of the spinneret face and the truncated conical portion having an angle of 15-60 degrees between the sides.  The cylindrical portion of each orifice may be joined directly to the truncated conical portion or may be joined thereto by means of a second coaxial truncated conical portion whose length is less than 15 per cent of the total thickness of the spinneret face, the total thickness of which may be 10 mm. or more.  The spinneret face may be composed of stainless steel containing about 18 per cent chromium and 8 per cent nickel. Alternatively it may be composed of a steel containing chromium, possibly nickel, and in addition manganese, titanium, molybdenum, tungsten, vanadium or copper.  In an example, 32 orifices spaced at regular intervals and arranged in a circle 30 mm. in diameter are pierced in a cup-shaped piece of rustless steel 2 mm. thick containing 18 per cent chromium and 8 per cent nickel. Each orifice consists of a cylindrical portion extending inwards from the spinneret face and having a diameter of 0.08 mm. and a length of 0.06 mm., and the cylindrical portion communicates directly with a coaxial truncated cone inlet portion which includes an angle of 35 degrees between its sides.