baber/WOPTO huggingface dataset:
Patent GB-1060692-A (GB)
Title: Improvements in and relating to electric switches
Inventor: DEVERILL STANLEY ALBERT WILLIA
IPC: H01H13/72
Filed: 1964-03-17
Abstract: 1,060,692. Switches held set and freed mechanically. N.S.F. Ltd. March 17, 1965 [March 17, 1964], No. 11320/64. Heading H2B. Two pivotally mounted switch actuator members 15, 16, have hooked arms 44, 45 for engagement with a resiliently biased latching bar 40 to latch either or both members 15, 16 against their biasing springs 22 in the switchactuated position, and a similar shaped release member 18 positioned between members 15, 16, is operable to move bar 40 against its spring 43 and release the latched member or members 15, 16. Movement of member 15 or 16 causes bar 40 to pivot about slot 42 or slot 41 respectively to allow arm 44 or 45 to latch on to the bar without releasing the other member if it is already latched. A further actuator member 17 is independent of the latching mechanism, having no latching arm. The actuating members 15-18 are clipped on to a rod 20, and are guided during their pivotal movement by integrally moulded projections (23) co-operating with guide members (24) on the base (10a) of housing 10 (Fig. 1, not shown). Actuators 15, 16, 17, each have one or more recesses containing a spring-pressed plunger (33) engaging a pivoted contact rocker member (27), (Fig. 2, not shown). The terminals (25), (26), (26b) are staked in position, and each rocker (27) is retained on its pivot terminal (25) by bent-over lugs.
Patent GB-196927-A (GB)
IPC: F16H1/08
Filed: 1922-11-27
Abstract: 196,927. Soc. Anon. des Ateliers d'Aviation L. BrÚguet. Dec. 16, 1921, [Convention date]. Breaking-pieces for relieving strain.-In a multiple engine combination for aircraft and the like, axially-movable helical driving pinions P which are held in engagement with a central wheel C by the reaction of the teeth, are provided with adjustable stops u to prevent disconnection of the gears during slow running of the engines. In order to avoid damage should a pinion be accidentally stopped, in which case the reaction of the teeth would drive the pinion forcibly outwards, the stop u is made either expansible or frangible. Specifications 186,054, [Class 80 (ii), Gearing, Variable speed &c.], and 190,465 are referred to.
Patent GB-749259-A (GB)
Title: Turbine and compressor blades
Inventor: LEEDHAM LESLIE HERBERT
IPC: F01D5/14
Filed: 1953-04-24
Abstract: 749,259. Casting composite articles. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. July 26, 1954 [April 24, 1953], No. 11337/53. Class 83 (1). [Also in Group XXVI] A turbine or compressor blade is formed by die-casting metal either wholly or partly around a sheet-metal reinforcing member. The reinforcing member 1 comprises a core formed with corrugations 1a, rows of holes 1b or of dimples 1c, and tags 1d by which the blade may be mounted. Metal 4 is die-cast around the core. In a second embodiment, the reinforcing member constitutes the convex or concave surface and the leading and trailing edges of the blade and the die-cast metal fills out the parthollow shape thus formed and provides the other surface. The metal may be zinc alloy, aluminium alloy or magnesium alloy.
Patent GB-419881-A (GB)
Title: Improvements in electrical plug and socket connections
IPC: H01R29/00
Filed: 1933-04-18
Abstract: 419,881. Two-part couplings. HARDYPICK, Ltd., Heeley, Sheffield, and HURD, F. W., 70, Cunningham Park, Harrow, Middlesex. April 18, 1933, No. 11376. [Class 38 (i).] Contact-terminals 3, 5 that slide under the action of springs 10, are carried in an assembly of insulating members 6, 7, 8 held in a casing 2 between a flange 2a and a spring ring 12 so as to be capable of partial rotation relatively to the casing. This enables the casing to be turned to engage a bayonet catch after the contacts are engaged in socket-contacts h, e on the counterpart, the pairs of contacts being coned to give a line contact. In order to permit reversal of three-phase current supplied to a motor, the three contacts 3, 5 are spaced equally round a circle, while the counterpart has six contacts c-h arranged in a circle and connected in pairs as shown in Fig. 3. The couplings can be engaged in two positions 180‹ apart so that the three contacts 3, 5 fit either into the counterparts h, f, d or into e, c, g, thus giving connections to run the motor in either direction. A central pair of contacts 17, w provide for a pilot line, and earth connections 15, p are provided. An alternative arrangement for reversing a three-phase connection consists of three contacts arranged on a diameter, one being at the centre. The pilot line is then connected to a single pin and a pair of connected sockets lying on a diameter at right angles to that of the live contacts.
Patent GB-352504-A (GB)
Title: Improvements in, or relating to, umbrellas, parasols, and the like, and carriers therefor
IPC: A45C13/40
Filed: 1930-04-10
Abstract: 352,504. Brackets. ORTWEILER, S., 39, Gt. Arthur Street, Golden Lane, London. April 10, 1930, No. 11433. [Class 52 (v).] In arrangements wherein an umbrella, parasol, &c.. is adapted to be positively locked to a carrier, such as a handbag 2, and is capable of use only when dissociated therefrom, one element 5 of the looking device such as a press button, is permanently secured to, or forms part of, one extremity 4 of the umbrella, the other element 6 being secured to the carrier, as by a tab 7. The umbrella may be mounted between two brackets secured to a rigid support, for example, a motor-car; one bracket may carry a socket or ring wherein the umbrella ferrule is inserted, and the other carry part of the press button. This latter bracket may be hinged to the support and operate under the action of a spring mounted on the pivot pin of the hinge.
Patent GB-437872-A (GB)
Title: Improvements in agricultural rotary cultivator devices
IPC: A01B33/10
Filed: 1935-04-13
Abstract: 437,872. Machines for treating land. ROTARY CULTIVATORS, Ltd., 32, Victoria Street, Westminster, and MUIRSON, K. J., 20, Hertford Street, Park Lane, London. April 13, 1935, No. 11492. [Class 6 (i)] A blade for a rotary cultivator consists of two portions 5, 6 bent at substantially right angles to one another, one portion 5 lying in a plane at right angles to the axis of revolution and the other portion 6 being in the form of a shell forming part of the cylindrical surface of revolution of its cutting-edge 9, which is parallel with the axis of revolution. The blades are bolted to spider arms 3 on a shaft 1, the spiders being slightly displaced angularly relatively to one another so that the blades are arranged spirally around the shaft 1. The intermediate spider arms each carry two blades alternately extending right and left. The leading edges are chamfered internally to form cutting-edges 9, 10, the edge 10 being curved back slightly. The shaft 1 is driven rapidly at a speed which may be varied.
Patent GB-118144-A (GB)
Title: Improvements in or relating to Two-stroke Internal Combustion Engines.
Inventor: GUINNESS KENELM EDWARD LEE
IPC: F02D15/00
Filed: 1917-08-11
Abstract: 118,144. Guinness, K. E. L., and Carington, C. M. Aug. 11, 1917. Regulating; valves.- A conduit connecting the cylinder of a twostroke-cycle engine to the crank-case or other source of supply, to enable a portion of the compressed charge to return to the crankcase, is controlled by a reciprocating sleeve valve N working within an adjustable ported sleeve Q, which varies the opening of ports A<2> in the cylinder wall. A port N3 at the lower end of the sleeve N controls the entrance of fresh charge into the crank case. During the explosion stroke the sleeves N is depressed by a spring N<1>, closing the ports N<2>, N<3>. In a modification the sleeve N is dispensed with, and the lower part of the conduit H is controlled by ports in the rotating crankshaft or crank-disk.
Patent GB-581457-A (GB)
Title: Improvements in or relating to aerial systems
IPC: H01Q19/02
Filed: 1944-06-17
Abstract: 581,457. Aerials. PIPPARD, A. B. June 17, 1944, No. 11596. [Class 40 (v)] In a directional aerial system comprising a reflector, mismatch of the associated radiating or receiving element due to energy reflected back to the element from the reflector, is minimised by so shaping the reflector that the reflection of energy back to the radiating or receiving element from one portion of the reflector is substantially counter-balanced by the reflection from the remainder of the reflector. For the case of a paraboloid 1, shown as being fed by a wave guide 4, the modification of shape is produced by a disc of conducting material 2, of diameter D = #4F#/3 where F is the focal length of the paraboloid and A is the wavelength, located at - the centre of the paraboloid. To obtain the correct phase of reflection from the disc its reflecting surface should be a distance l= # /8 from the apex 3 of 8 the reflector and. this condition is satisfied if the disc is of thickness t = #/24 and its rim is in contact with the paraboloid. The disc may also be located so that its reflecting surface is in front of or behind the defined position by one or more half wavelengths. The invention is stated to be applicable to spherical reflectors and parabolic '' cheese " reflectors, in which case the correction is produced by a flat plate extending across the thickness of the " cheese ".
Patent GB-821035-A (GB)
Title: Vinyl chloride-alkyl acrylate interpolymers and process for their preparation
IPC: C08F214/06
Filed: 1956-04-17
Abstract: Interpolymers are made by polymerizating in bulk or aqueous dispersion at a temperature between 10 DEG  C. and 80 DEG  C. and under autogenous pressure a mixture comprising a C6-C12 alkyl acrylate and vinyl chloride in a weight proportion of 1 to 9 parts of the latter for each part of the former, and carrying out the polymerization until at least 60% of the weight of the monomeric material has been polymerized without the further addition of monomeric material, preferably until the instantaneous polymer being formed contains no more than 1% of alkyl acrylate.  Alkyl acrylates specified are the n-hexyl, n-heptyl, n-octyl, isooctyl, 2-ethyl-hexyl, isononyl, n-nonyl, n-decyl and n-lauryl esters and also esters made from branched chain C10-C12 alcohols. Polymerization may be carried out in the presence of a catalyst such as benzoyl, lauroyl, diacetyl and hydrogen peroxides, azo - bis - diisobutyronitrile, persulphates and persulphate-bisulphite mixtures. In aqueous dispersion the process may be carried out either in suspension or emulsion, suitable suspending and emulsifying agents being polyvinyl alcohol, hydroxyethyl cellulose, carboxymethyl cellulose, the sodium salt of a styrenemaleic anhydride copolymer, sodium dioctyl sulphosuccinate, sodium lauryl sulphosuccinate, sodium lauryl sulphate and sodium tetradecyl sulphate.  Also present during polymerization may be acetaldehyde or tertiary dodecyl mercaptan as a modifier.  The polymerization may be carried out continuously in a tube reactor.
Patent GB-1519264-A (GB)
Title: Press
IPC: B27N3/08
Filed: 1976-03-23
Abstract: 1519264 Pressing fibre sheets T R L HOLMQUIST and A G GUSTAFSON 23 March 1976 11679/76 Heading D2A [Also in Division B5] A multi-daylight press for making wood fibre products from, for example, wood fibre pulp, comprises lower platens actuated by a hydraulic piston and a fixed upper platen. Located over the lower surface of each platen 13 is a press sheet 25, a gasket 26 being interposed between each sheet and its platen. Located in the space between each. platen and its sheets, and within the gasket, is a porous body 27 and each body is connected via a valve to a vacuum chamber. The application of vacuum to the bodies supports the sheets against sag when the press is open. In a first alternative embodiment the seal is moulded to the edge of the porous body, in a second alternative the seal is seated in the lower surface of the press platen. If desired a further sheet may be located over the press sheet and held in place by vacuum.
Patent GB-768348-A (GB)
Title: Rigid permeable structure comprising inert aggregates
Inventor: POULTER JOHN ERIC
IPC: B01D39/14
Filed: 1953-04-28
Abstract: Rigid filtering media comprises pieces of inert aggregate of gravel, grit, crushed ceramic material and the like, and supporting and reinforcing means e.g. expanded metal sheeting held together by a binder which sets without application of pressure.  Suitable binders comprise thermoplastic and thermosetting resins, cement and bitumen.
Patent GB-574604-A (GB)
Title: Improvements in and relating to trunks or like travelling cases of the wardrobe type
IPC: A45C13/03
Filed: 1944-06-21
Abstract: 574,604. Wardrobe cases. WADSWORTH, H. V., and BARROW, HEPBURN, & GALE, Ltd. June 21, 1944, No. 11817. [Class 133] [Also in Group XIV] In a wardrobe case of the type in which garments on hangers 6 may be supported in folded condition on a frame 11, adapted to engage with supports 21 in the upper part of the case and to be swung into and out of it about a horizontal axis, the frame is also adapted to be turned about, and to be slid in the direction of a longitudinal axis at right angles to the horizontal axis to avoid undue strain being imposed on the frame or its connections with the casing. In the form shown in Fig. 1, the frame 11, formed of tubular sections or from a single wire or rod, is of inverted triangular shape with a central tube 13 telescopically connected with a rod 14 connected by a ball joint 14a to a member 15a pivoted to a horizontal fixed spindle 17. The frame is formed with inverted triangular eyes 20 for attaching to the supports 21. The spindle may be pivoted in a pillar 16 and its ends fixed in brackets 18 or bifurcated and splayed to secure them to the side walls. Alternatively, a short spindle may be provided and the pillar 16 held firmly by lateral struts or a single long strut. A rear strut may also be provided. In modifications, the frame has a feather connection with the rod or the ball joint is dispensed with and the rod 14 is directly pivoted to the pillar. In a second form, Fig. 5, a U-shaped frame 26 is slidable along a reverse U-shaped companion part 27 mounted to swivel about a stem 28 on a loop 30 connected to a fixed loop 31. The case may have hooks or eyes for hanging it on a wall.
Patent GB-1148216-A (GB)
Title: Improvements in or relating to apparatus for Cooling Rubber Sheeting
Inventor: SUTCLIFFE LEONARD
IPC: B29B13/02
Filed: 1967-03-14
Abstract: 1,148,216. Endless conveyers. B.R.R. Ltd. 1 April, 1968 [14 March, 1967], No. 11902/67. Addition to 1,085,539. Heading B8A. [Also in Division C3] In the apparatus of the parent Specification the conveyer is driven stepwise by means of a piston and cylinder which rotates a wheel or wheels driving the conveyer in an intermittent fashion through the intermediary of a clutch device. The clutch device is suitably a sprag clutch. It is also preferred that the backstop comprises a ratchet wheel, a roller track, and spring-loaded rollers mounted between them.
Patent GB-129816-A (GB)
Title: Improvements in Furnaces.
Inventor: TOPHAM WILLIAM
IPC: F27B3/00
Filed: 1918-07-20
Abstract: 129,816. Topham, W. July 20, 1918. Open-hearth furnaces; slag, collecting.-Relates to the ports, flues, and roof, and to the means for catching dust, slag, &c.. in a gas-fired regenerative open-hearth smelting furnace. Figs. 1 and 2 show one end, the other end being similar. The central gas flue 13 and the air flues 14, 15 are vertical and in the same plane, and their upper ends communicate with the space above the bridge by three flues or ports of equal length lying side by side and sloping downwardly. These ports have parallel sides, but the air ports converge towards the central gas port 9<x>, so that the separating-walls are thinner towards the bridge while the main walls are formed with offsets at the bridge. The roofs of the ports 9<x> &c. can be independently taken to pieces for repair up to the point 12<x>, where they meet the roof of the hearth, which is continued over the bridge. The air flues descend vertically into the catch-pit, while the gas flue is deflected diagonally thereto, and both catch-pits are provided with brick-lined cast-iron pans 17.
Patent GB-345839-A (GB)
Title: Improvements in devices for creating pressure difference in fluid conduits
IPC: G01F1/44
Filed: 1930-04-15
Abstract: 345,839. Venturi apparatus. WATSON, F. M. and GUEST & CHRIMES, Ltd., Don Street, Rotherham. April 15, 1930, No. 11917. [Classes 69 (i) and 135.] A venturi tube 2; is of substantially smaller diameter than the. pipe. 1 in which it is placed, and is supported by pipes 3, 4, connected to the smaller and larger diameters of the venturi tube respectively. The venturi tube may be placed in a byepass of the main pipe which may be provided with a shut-off valve at each end. In a modification, (Fig. 3 not shown), the supporting pipes 3, 4, may pass through a removable cover on the main pipe, and in another modification, Fig. 4, the venturi tube 2 may be mounted on a support 7 provided with trunnions 7a, 7b, so that the venturi tube may be turned to reverse the flow through it to flush out any obstruction. The device is. applicable for actuating a fluid flow meter or a valve.
Patent GB-1480574-A (GB)
Title: Cosmetic emulsions of the water-in-oil type and their production
IPC: C09K23/52
Filed: 1976-03-25
Abstract: 1480574 Cosmetic emulsions HENKEL & CIE GmbH 25 March 1976 [29 March 1975] 11938/76 Heading A5B A cosmetic emulsion of the water-in-oil type comprises a copolymer or terpolymer of N-vinyl pyrrolidone, an alkyl or cycloalkyl acrylate or alkyl or cycloalkyl methacrylate having 6 to 24 carbon atoms in the alkyl or cyclo alkyl radical and, if required, vinyl acetate, in a quantity of from 2 to 20% by weight, a quantity of 20 to 75% by weight of water, relative to the total emulsion, and vegetable or animal fats, waxes, fatty alcohols, hydrocarbons and further additives normally used in cosmetic emulsions.
Patent GB-800054-A (GB)
Title: Improvements in or relating to bobbin for magnetic cores and magnetic core assemblies employing such bobbins
IPC: H01F5/02
Filed: 1956-04-19
Abstract: 800,054. Transformers; electromagnets. SPERRY RAND CORPORATION. April 19, 1956 [Oct. 2, 1955], No. 11971/56. Classes 35 and 38 (2). [Also in Group XXII] A bobbin for magnetic cores comprises a hollow cylindrical shell, peripheral edge flanges thereon, the flanges being bent over in a smooth curve to extend toward each other in a direction parallel to, but spaced from, the surface of the shell. A stainless-steel tube 10 is formed with edge flanges 11, Fig. 3, and is tumbled to smooth out rough surfaces and round off the outer edges of the flanges as at 12. Metal foil ribbon 13 of high permeability, suitably insulated for example with magnesium oxide, is wound round the bobbin 10, its leading edge being spot welded to the bobbin and its trailing edge to its last turn. The flanges 11 are then turned over, Fig. 4, in a smooth curve so that the ends thereof are parallel to the surface of the tube 10 but are spaced above the outer layers of foil 13. The assembly is baked, e.g. at 1600 ‹ F., in hydrogen to remove stresses in the foil 13. Windings 14, which may constitute one, two or more coils, are then wound around the bobbin transversely to the direction of wind of the foil 13. The device may be used as a magnetic memory, a magnetic amplifier or a shift register in electronic computers.
Patent GB-455690-A (GB)
Title: Improvements in or relating to pipe unions
IPC: F16K27/00
Filed: 1935-04-18
Abstract: 455,690. Pipe unions. WEISS, R., 35, Humboldstrasse, Linz, Austria. April 18, 1935, No. 12027. [A Specification was laid open to inspection under Sect. 91 of the Acts, Oct. 21, 1935.] [Class 99 (i)] [See also Group XXIX] A union for pipe ends terminating at a distance from one another includes a casing 1 which is screwed to the end of one pipe (not shown) and locates a valve 9 and coacting seat 10. The valve is actuated through a lever 11 by a screwed bolt 12 which projects through a stuffing box 13 integral with the casing 1 and is formed with a square head for rotation by a spanner, the stuffing box being provided with a removable cover or cap 14. The union is completed by a sleeve 4 which is in screwthreaded engagement with the casing 1 and is slidable on the second pipe 7. This sleeve 4 has a frusto-conical bore which makes jointing contact with like seating surfaces 2, 8 on the casing 1 and the end of the pipe 7 respectively, contact between the sleeve. and the surface 8 being secured by a nut 5 as shown.
Patent GB-549426-A (GB)
Title: Reciprocating facsimile apparatus
IPC: H04N1/12
Filed: 1941-09-19
Abstract: 549,426. Facsimile telegraphy. CREED & CO., Ltd. Sept. 19, 1941, No. 12061. Convention date, Nov. 15, 1940. [Class 40 (iii)] In a facsimile telegraph recorder in which a stylus reciprocates over a recording surface transversely of the movement of the surface, the stylus is arranged to be raised away from the surface during the return non-recording stroke. As shown, a continuous sheet of sensitized recording paper 11 travels from a roll 12 to a metallic platen 13 and then between feed rolls 14, 15 having intermeshing gears 17, 18 driven through worm gears 21, 22 and 24, 25 by a motor 26. While the sheet is being fed, a stylus 37 on a carriage 34 is moved across the sheet along guide rails 35 to record a line by means of a cord 32 which is wound up on a drum 30 driven through a friction cluch 29 by the shaft 23 of the gears 22, 24. The drum makes one rotation for every line of recording. At the end of each line, a deflecting arm 31 rotating with the drum 30 slips the cord 32 off the drum, and a cord 39 connected to a spring 43 causes the stylus carriage to fly back to the left in readiness for the recording of the next line. The stylus 37 is arranged to be lifted off the paper during the fly back of the carriage 34. For this purpose, the carriage 34 is hinged on a pivot 36 guided by the groove between the rails 45, and the cords 32, 39 are attached to lugs 33, 38 of the carrier 34 in such a position that the pull of the cord 32 during the recording traverse urges the stylus against the sheet 11, whereas the pull of the cord 39 during the fly back lifts the stylus off the sheet. The stylus is attached to the carriage by a leaf spring. Synchronizing is on the start stop principle. In one arrangement, Fig. 3, at about the same time as the cord 32 is slipped from the drum 30, a lug 48 on the drum is stopped by a latch 49 and a switch 67 is opened by a pin 71 on the drum. Then when a synchronizing signal is received a relay 68 is energized and closes the circuit of an electromagnet 51 which withdraws the latch 49 to start the line scanning operation. During this operation, the pin 71 leaves the switch 67 in the closed position short circuiting the relay 68. The relay 68 is connected to the mid-point of the output transformer 65 which supplies the stylus with recording signals from a class C pushpull amplifier 63, 63 connected by a transformer 62 to a signal inverter 61 receiving the signals from a line L. In a modification, a higher speed shaft, e.g. the shaft of the motor 26, from which both the drum 30 and the sheet feeding rolls are driven, is stopped by a marking signal causing an electromagnet to attract a latch, the latch is released by a non-marking signal causing deenergization of the latch magnet. The pivot of the latch is carried by a plate resiliently mounted between rubber pads.