baber/WOPTO huggingface dataset:
Patent GB-306479-A (GB)
Title: Improvements in or relating to circuit connections for starting synchronous converters
IPC: H02P11/04
Filed: 1929-01-17
Abstract: 306,479. Siemens - Schuckertwerke Akt.-Ges. Feb. 21, 1928, [Convention date ]. Systems depending on the use of two or more machines; synchronizing dynamo-electric maehines. - An arrangement for starting up a rotary converter on the alternating-current side, at a distance if desired, comprises an auxiliary motor generator set 4, 5 which closes a switch 6 energizing a relay 7 to operate the alternating-current main switch 10 connecting the rotary converter 11, 8, the continuous-current excitation of which is also supplied from the generatior 5. The motor generator 4, 5 can be replaced by a rectifier and when the rotarv converter is in its running condition, the auxiliary means are automatically switched out of circuit through contact 12. If a number of rotary converters are being started up, the auxiliary mechanism is not disconnected until the whole operations are completed. The auxiliary means before disconnection may be employed for energizing the switches connecting the continuouscurrent consumers, and also for energizing the equalizing relays. Specification 207,788 is referred to.
Patent GB-241769-A (GB)
Title: Improvements in or relating to the treatment of felted materials, papers, and the like
IPC: G03C1/79
Filed: 1925-01-20
Abstract: 241,769. Kodak, Ltd., and Bent, W. G. Jan. 20, 1925. Printing paper and the like is coated with a mixture containing rubber latex and baryta or like substance which may be coloured with mineral pigments, lakes, or dyes. The coating isolates the emulsion from the chemical action of impurities in the paper, prevents cracking, and renders the paper more resistant to the action of water and less liable to distortion and damage.
Patent GB-534328-A (GB)
Title: Improvements in and relating to machines for cutting discs or rings from sheet metal
IPC: B23D33/04
Filed: 1940-01-27
Abstract: 534,328. Shearing. RHODES, C. J. Jan. 27, 1940, No. 1719. [Class 83 (iv)] Machines for cutting discs or rings from plates in which the plate is held between heads for rotation between rotary cutters have means for facilitating the setting of rectangular plates. The heads are mounted on a bow frame carried by a rotating table 12 on a slide 13 fed on the frame 11 by a hand-operated pinion engaging a rack 16a to set the heads at the required distance from the cutters (not shown). Lugs 22. 23 rotatably support a rod 24, collars 25, 26 preventing axial movement. A boss 27 adjustably clamped on the rod carries a stop 29 for setting one edge of the plate, an edge at right angles being set by a stop 34 mounted to swing on a rod 31 adjustable in the upper part of the lug 22. The work is inserted between the heads with the bow swung away from the cutters, and after adjustment and clamping the bow is returned to operative position, being located by an abutment 19. A scale 36 pivoted about the axis of the heads facilitates the setting of the two stops. The rotation of the plate during cutting causes the stops to swing aside.
Patent GB-764435-A (GB)
Title: Semi-trailer hitch
Inventor: VAUGOYEAU ALEXANDRE
IPC: B62D53/08
Filed: 1955-01-20
Abstract: 764,435. Fifth wheel couplings. VAILLANT, J. Jan. 20, 1955, No. 1751/55. Class 103(5). A tractor has secured to its rear end a concave spherical member 1 having a transversely arranged slot 13 and a mating convex spherical member 2 having a longitudinally arranged slot 14 the two slots accommodating a common square member 19 to prevent relative rotation of the spherical members about a vertical axis but allowing rotation about their common centre of sphericity. The member 2 accommodates a pair of jaws 41, 42 pivoted on pins 43, 44 and provided with mating surfaces to enclose the trailer king-pin 8. The jaws are locked by a spring-loaded plunger 45 in the coupled position of the trailer. When the plunger 45 is withdrawn by the lever 51 detents 53, 54, which are urged apart by the spring 55, engage pins 58, 59 to hold the plunger withdrawn until the jaws open to release the king-pin 8.
Patent GB-271129-A (GB)
Title: Improved arrangements for actuating apparatus by telegraphic and like light current impulses
IPC: H04L13/14
Filed: 1926-01-21
Abstract: 271,129. Symonds, E. O. Jan. 21, 1926. Automatic telegraphs; distributor systems.-In a telegraph system employing synchronized distributors, means are provided for ensuring that a transient impulse shall produce an enduring effect on a relay or the like. Thus the synchronized distributor arm a, Fig. 3, distributes successive impulses to the grids e of six valves corresponding to the six distributor contacts d, and controlling six relays g which may appertain to six telegraphic receivers working multiplex. The grids e are thus connected in succession to the line c, and one of them receives a positive charge from the line, current flows through the relay g in the corresponding plate circuit. The grids e may be connected to the filaments through blocking condensers u, but the condensers may be omitted if the inherent grid capacities are sufliciently great to acquire an effective electric charge from the line. The line c may be earthed through a high resistance v, shunted if desired by a reservoir condenser w from which the lower capacities of the grids are instantaneously charged when the arm a passes over the contacts d, which may be very short. The charging wiper a may be integral with a discharging wiper, which earths each grid in turn after the lapse of half a cycle. Each output relay g may be arranged in a balanced bridge as shown in Fig. 5, so that normally it takes no current; the balance of the bridge is upset, however, if the grid acquires a charge, and the relay is then operated. The systems described may be duplexed, and more than one valve may be used in each channel.
Patent GB-1462951-A (GB)
Title: Dual tyre detection system
IPC: G08G/
Filed: 1974-01-15
Abstract: 1462951 Road-traffic signalling-apparatus AUTOMATIC REVENUE CONTROLS (EUROPA) Ltd 15 Jan 1974 [15 Jan 1973] 01785/74 Heading G4Q Tyre width detection utilizes a pair of elongated wheel detectors at an angle α to the direction of vehicle travel. For automatic toll systems signals generated in each detector are monitored to compare their relative times of occurrence: if the two signals overlap it indicates two tyres at the end of the axle. In the embodiment α is such that: where a 1 , a 2 , b 1 , b 2  are as indicated in Figs. 1, 2. The detectors are pressure-operated pads.
Patent GB-1414895-A (GB)
Title: Stirring apparatus
IPC: B01F27/75
Filed: 1973-01-12
Abstract: 1414895 Stirring apparatus MITSUBISHI JUKOGYO KK 12 Jan 1973 [19 Jan 1972] 1847/73 Heading B1C Apparatus for stirring fluids comprises a cylindrical or conical container 1, a plurality of rotatable shafts 7, 8 which do not have a common axis and a plurality of stirring members 3, 4 which are located radially remote from the axes of shafts 7, 8 but rigidly connected thereto, wherein adjacent ones of the stirring members are spaced slightly apart or in light contact with each other, wherein at any location of the stirring members one or more stirring members is or are spaced slightly apart from or in light contact with the inner wall of the container and wherein each stirring member is connected to a respective one of the shafts so that in operation each stirring member will rotate about its own axis while it rotates bodily about the axis of rotation of the respective rotatable shaft. Fig. 1 shows the path of the stirrers. Fig. 2 shows the container with a jacket 2 having heating medium inlet and outlet 13, 14. The stirrers may be hollow to allow heating medium to pass therethrough. The stirrers may be spirallv shaped or have an elliptical cross-section instead of circular as illustrated.
Patent GB-469445-A (GB)
Title: Improvements in cones for loudspeakers
IPC: H04R7/12
Filed: 1936-01-21
Abstract: 469,445. Diaphragms ; moulding pulp. HAWLEY PRODUCTS. Ltd., BUTCHER, J. and HOSKER, G. R. Jan. 21, 1936, No: 1944. [Class 40 (iv)] [Also in Group V] A loud-speaker cone is formed during manufacture with a plurality of circumferentially disposed integral sections of two or more different thicknesses and /or densities. As shown in Fig. 1, oppositely disposed quadrantal sections 11, 13 are of equal density or thickness, but different from that of the sections 12, 14. The sections preferably do not extend to a corrugated portion 17 of uniform thickness connected to a ring 16, which may be of uniform thickness or vary in thickness in a radial direction. A portion 18 near the apex of the cone is of uniform thickness and is formed with a reinforced or thickened cylindrical flange 19 to support a speech coil (not shown). The boundary lines between the sections 11 ... 14 may be straight, as shown, or be curved, zigzag or sinuous, as indicated in Fig. 4 (not shown), and the transition between the sections may be gradual. The diaphragm is formed by an accretion of fibres from a bath of wood pulp employing a former, Fig. 6, which comprises a hollow cone 25 having groups of perforations such as 27, corresponding to the sections 11 ... 14 and further groups such as 30, 31, corresponding to the apex and rim portions 16, 17 and 18, 19. The groups of perforations are separated by partitions 32 which together with an outer flange 33 are clamped by screws 36 to a base ring 34 provided with drain apertures 37 which can be connected to sources of suction. The cone member is surmounted by one or more contoured members 40 of a reticulated nature upon the outer surface of which the fibres are accreted. The varying thickness or density of the sections is obtained by a variation of the suction applied to the corresponding suction aperture of the compartment, or by a variation of the size and /or disposition of the apertures 27. In the latter case the internal partitions may be removed and a single suction device employed. The cone diaphragms may be stepped or corrugated circumferentially and may have an elliptical cross-section.
Patent GB-641578-A (GB)
Title: Improvements relating to variable speed transmission
Inventor: WHITE GILBERT JOHN
IPC: F16H29/04
Filed: 1948-01-22
Abstract: 641,578. Variable-speed ratchet-gears; adjustable throw cranks. WHITE, G. J., and KNAPMAN, C. H. Jan. 22, 1948, No. 2022. [Classes 80(ii) and 80(iii)] A variable-speed gear, for permitting the controlled lowering of a material-discharging feed-screw conveyer on a vehicle for distributing solid materials such as agricultural fertilizer, lime, road stone, gravel or sea sand, as described in Specification 595,687, [Group XXX], uses an adjustablethrow crank 12 driving pawl-carrying arms 23, oscillating about a ratchet-wheel 27 on a driven shaft 22, the crank comprising a crankpin 12 carried by a disc 10 which, to change the throw, is turned about an eccentric pivot 9 carried by an outer sleeve-shaft 3, by turning therein an inner concentric driving shaft 4. carrying on an arm 14, an eccentric pin 15 engaging a slot 16 in the crankdisc 10 at the opposite side of the shaft-axis from the pivot 9. The crank- ,disc 10 is slotted at 13 to 'clear the end of the inner shaft 4, the crankpin 12 being carried on a bridgepiece 11 integral with the disc 10 and accommodating the arm 14. The concentric shafts 3, 4 are normally clamped together for rotation as an input unit by an end-nut 7 which is slackened to permit the shafts to be turned relatively to adjust the crank-throw from zero (as shown) upwards. To permit speed adjustment to half a tooth pitch, the oscillating arms 23 may each carry two pawls spaced by an integral number of ratchet-tooth pitches plus one-half a tooth-pitch. As applied to the fertilizer discharger described in Specification 595,687, [Group XXX], the shafts 3, 4 constitute the input member driven through a friction drive by the vehicle wheels, and the ratchet - wheel shaft 22 drives through an irreversible worm gear an output shaft 2, which drives through an overrunning clutch a winchdrum permitting the lowering at controlled speed, under gravity load, of one or more pivotally-mounted feed-screws which discharge the fertilizer. The output shaft 2 may be under a spring- instead of gravityload.
Patent GB-936475-A (GB)
Title: Improvements in or relating to clutch mechanisms
IPC: F16D48/02
Filed: 1960-01-20
Abstract: 936,475. Clutch control. G. A. BLACK. Jan. 20, 1960, No. 2036/60. Class 80 (2). In single or double drum winding equipment for a mine shaft cage, a member 18 of a positive clutch 18, 19 between a drum shaft 17 and a winding drum 21 is axially moved for engagement and disengagement by fixed, symmetrically disposed, hydraulic servomotors 6 the pistons 7 of which are connected by spaced abutment collars 11 to a diametrically split thrustring 3 freely engaging the member 18, guide rods 4 being provided to maintain clearance between the ring 3 and the member 18 to prevent wear and the transmission of frictional torque from the member 18 to the servomotors. In operation, to engage the clutch pressure fluid is directed through both of two ports 9, 10, the engaging force on the pistons depending on the difference in cross-sectional area on both sides of the pistons, and for disengagement the port 9 is connected to exhaust. Alternatively, Fig. 5 (not shown), pressure fluid is directed through port 9 only for engagement, or port 10 only for disengagement. The control comprises a manually operated valve 23, alternative pumps P1, P2, a relief and unloading valve RUV the outlet from which may control the winding equipment brakes, and an adjustable back pressure valve RV creating a pressure between itself and the pumps and providing a minimum pressure for disengagement to prevent clutch seizure in the event of partial load being left on the clutch when the brake is applied prior to clutch disengagement.
Patent GB-369702-A (GB)
Title: Improvements in or relating to vehicles
IPC: B60T7/20
Filed: 1931-01-23
Abstract: 369,702. Vehicle brakes. CADNEY, W., No. 1 Stores Depot, Royal Air Force, Kidbrooke, London. Jan. 23, 1931, No. 2227. [Class 103 (i).] A device whereby the fall of the tow-bar of a trailer vehicle in the event of its becoming detached from the tractor effects the application of the brakes comprises in one construction a lever 3 pivoted at 4 to the trailer forecarriage for engagement with an adjustable screwed rod 7 on the tow-bar 5. The brake operating connections comprise a rod 9 slidable in the perch pin 10, a cranked lever 11 and connecting- rod 13. For manual operation of the brakes a hand or foot lever may be arranged to engage a collar on the rod 13. The piston of a vacuum cylinder mounted on the trailer and adapted to be exhausted by the engine on the tractor may also be connected to the rod 13. In the case of a trailer provided with Ackerman steering, with the tow-bar mounted to swing on the front axle or framework of the vehicle, the brake operating connections may comprise a cable attached to the tow-bar forward of its horizontal pivot and passing through a guide disposed in vertical alignment with the steering axis of the tow-bar. The cable is connected by a cross-bar to a pair of cables each connected to a wheel brake on one side of the vehicle.
Patent GB-657004-A (GB)
Title: Improvements in apparatus for removing moisture from heat insulating walls
IPC: F25D23/06
Filed: 1949-01-27
Abstract: 657,004. Refrigerating; tubular heat-exchange elements. WATSON, F. (Isoleringsaktiebolaget WMB). Jan. 27, 1949, No. 2268. [Classes 29 and 64(iii)] Moisture isremoved from the heat-insulating walls of cold storage chambers &c. by circulating precooled air through the walls, the air being cooled by a closed evaporating- condensing heat transfer system having its evaporator 23 in heat exchange with the circulating air passing through a pipe 10, which is defrosted at intervals by a heater 28 applied to vertical conduit 26 of the heat transfer system. The pipe 10 is connected at its ends to the wall spaces of the cold store and has surfaceincreasing members 18 on'which the moisture is deposited. For cooling the air refrigerant evaporates in a jacket 23 around the pipe 10, the vapour passing up a pipe 38 and being condensed in a pipe 32 welded to a primary refrigerant pipe 40 cooling the cold store. The condensed secondary. refrigerant passes into a vessel 30 and through holes 36 and conduit 26, 24 to the jacket 23. When the heater 28 is switched on the conduit 26 acts as a gas bubble pump which through an extension 34 in the vessel 30 fills the vessel 30 with liquid, forming a liquid seal in the condenser 32, and the warm liquid flows through a. pipe 43 to the jacket 23 melting the ice in the pipe 10, the melt water escaping at 44. When the heater 28 is switched off the condenser conduit 32 empties through the holes 36 to the jacket and cooling of the air recommences. The surface-enlarging members in the pipe 10 comprise a sheet metal member 16 folded to a star-shaped configuration, a central tube 18 and a crossmember therein.
Patent GB-980621-A (GB)
Title: High pressure fluid containers
Inventor: LEWIS ERIC CRISP
IPC: G05D16/10
Filed: 1961-01-20
Abstract: 980,621. Valves. ALUMASC Ltd., and E. C. LEWIS. May 9, 1961 [Jan. 20, 1961], No. 2313/61. Heading F2V. [Also in Division F4] A high-pressure fluid container 3 is formed with a neck 2 which houses a fluid pressure reducing valve. The reducing valve comprises a valve closure 17 connected to a piston 14, or diaphragm, which is loaded by a spring 25 to the open position and is subjected to fluid pressure in a chamber 13 acting in the closing direction. Sealing rings are provided on the piston 14 and the space below the piston is connected through passage 29 to an indicator device to signal failure of the seals. The outlet from chamber 13 is by way of a restricted bore 10 which may be provided with a valve 33 which is opened on connection of a coupling to an outlet 43.
Patent GB-1021271-A (GB)
Title: Vaccine for the treatment of avian leukosis complex
IPC: A61K39/00
Filed: 1963-01-18
Abstract: A vaccine for immunization of poultry against the avian leukosis complex is prepared by inoculating poultry tissue with virulent Rous sarcoma virus, harvesting tumorous tissue resulting from the inoculation, comminuting the tissue to prepare a tissue pulp thereform, preparing and aqueous suspension of the tissue pulp, separating the aqueous suspension to form a supernatant and a sedimented fraction, collecting the supernatant and inactivating the virus contained therein to yield a non-virulent fluid eliciting marked antigenicity against avian leukosis.  The poultry tissue may be living poultry, poultry eggs or isolated poultry tissue. Inactivation may be by means of formaldehyde. Freund's adjuvant, alginates and other vegetable gums and hexadecylamine may be present in the final vaccine.
Patent GB-1013374-A (GB)
Title: Improvements in or relating to manufacturing objects from halogen-containing synthetic substances
IPC: B29C67/00
Filed: 1962-06-18
Abstract: Moulds or machine parts are coated with an alloy of tungsten with one or more of the metals cobalt, nickel and iron, preferably by electrodeposition with the aid of an alkaline bath containing an organic hydroxylic acid as well as the required metal salts. In an example an alloy layer of 18-40% tungsten, the remainder being cobalt, is electrodeposited from a bath of the following composition: ..gms./litre .Co (in the form of chloride or sulphate).25 .W (in the form of Na2WO4).25 .Na-K-tartrate (Rochelle salt).400 .NH4Cl or (NH4)2SO4.50
Patent GB-817702-A (GB)
Title: Improvements in or relating to permanent magnets
IPC: H01F41/02
Filed: 1957-01-23
Abstract: A method of producing anisotropic permanent magnets from an alloy of the aluminium-nickel-iron type comprises applying mechanical pressure in a direction perpendicular to the required axis while the alloy is cooling from a temperature above 1000 DEG C., the conditions being insufficient to produce mechanical distortion.  The alloy may contain 20-32 per cent Ni, 10-14 per cent Al and the balance iron and impurities, with or without up to 7 per cent Cu, and up to a total of 5 per cent in all of Ti, Nb, Ta, Si, Zr, Ce and La.  A pressure of 5-10 tons per square inch may be applied in one direction perpendicular to the length of a square section rod by the use of flat blocks or in two directions by means of blocks having V-shaped grooves, the blocks and pieces being heated and then placed in a press.  Alloys containing up to 13 per cent Co, the Al and Ni being reduced as the Co is increased, may also be used.
Patent GB-510014-A (GB)
Title: Improvements in machines for manufacturing record cards
IPC: G06K19/02
Filed: 1938-01-25
Abstract: 510,014. Automatic control systems. BRITISH TABULATING MACHINE CO., Ltd. Jan. 25, 1938, No. 2430. Convention date, Jan. 26, 1937. [Class 38 (iv)] [Also in Groups XVI and VIII] In a machine for printing on a web of material to produce record cards, the material passes through a device for taking out curvature due to its having been stored in roll form. This comprises a roller 38 free on an arm 43 and a plate 39 pivoted to the roller shaft but urged into engagement with a plate 45 at the lower end of a web guide 46. By adjusting the position of the arm 43 and thus varying the position of the roller 38 and plate 39 relatively to the plate 45 and to each other, a varying bending action is exerted on the web tending to reverse the curvature due to the roll 10. A hand-adjustment of the lever 43 can be effected by its eccentric mounting on another lever 56 which is actuated, for automatic adjustment, by a pawl-and-ratchet device 62, 58, the lever 63 of which is pivoted to the armature of an electromagnet 67. In the lowest position of the lever 63, the pawl 62 is held inoperative by a pin and the lever 56 drops slowly to its extreme position, its movement being damped by a dashpot 60. The circuit of the electromagnet 67 contains a continuouslyoperating make-and-break device so as to cause oscillation of the lever 63, and a switch controlled by the cards T on the drum 140. A wire 150 is suspended so as to engage the edges of several of the cards on the drum. If the curvature of the material has not been sufficiently corrected, the wire 150 holds the switch open so that the lever 56 falls at its free end and maximum correction is applied by the devices 38, 39, 45. If, however, over-correction has taken place, the switch is closed, and the electromagnet 67 operates the ratchet-and-pawl device 58, 62 so that the devices 38, 39 are moved to lessen the correction.
Patent GB-139569-A (GB)
Title: Improvements in picture projecting apparatus
IPC: G03B21/30
Filed: 1919-01-31
Abstract: 139,569. Serrurier, I. Jan. 31, 1919. Optical-projection apparatus is mounted on a base 1<1> having a forward extension 1<11> which may be folded upwarrds and carries a hinged projection screen 3; an extensible rack may be provided to carry a kinematograph film 9. As shown, the apparatus comprises a lamp-house 8 carried by a supporting-plate 7 at one side of its centre, and kinematograph mechanism having an intermittent feed-sprocket 16, continuous sprockets 18, 19, film-centring sprocket 14, pressure rollers 20, and shutter 30, all driven by a hand-crank 29. The film may be carried on a spool 11 and pass to a spool 12, or may be wound on rollers 17, 17<1>, the roller 17 being under the influence of a spring so as to maintain tension in the film. The upper roller 17<1> may be mounted on a head 22 carried by a lazy-tongs device 23 or other means permitting adjustment of the height of the head in accordance with the length of the film, or enabling it to be lowered for packing. The screen 3 and base extension fold as shown in broken lines for packing, and, when in use, the screen is supported by a brace rod 5 or other means. The screen may be provided with a tubular lightshield in front of it, for daylight use.