baber/WOPTO huggingface dataset:
Patent GB-1185014-A (GB)
Title: Rotary Ball Valves
Inventor: NORRIS LEWIS HUNT
IPC: F16K5/20
Filed: 1966-04-02
Abstract: 1,185,014. Valves. WORCESTER VALVE CO. Ltd. 29 March, 1967 [2 April, 1966], No. 14729/66. Heading F2V. In a rotary ball valve, there is provided a rotary ball valve member 10 which is formed with a bore and is mounted between two annular metallic seat rings 14, the rings being arranged to provide a circumferential clearance 52 between themselves and a valve body part 11 and to be spaced from a second body part 12. Within each space so formed there is disposed an annulus of flexible springy material 15 having radial flats 17, 18 and designed to inhibit the relief of pressure via clearance 52 until the pressure on the upstream side of the valve reaches a predetermined value. In one of two further embodiments, which one embodiment is depicted in the drawing accompanying the Provisional Specification, the seat ring is made of resilient material and has formed, in its radially outermost periphery, axially extending grooves which function as the relief passages, and in the other, (Fig. 2, not shown), the seat ring is formed from a soft, non-resilient material clad in, or contained by, metal annuli designed to leave an axial clearance (72) for the relief of pressure, the latter embodiment being usable for the flow control of hot liquid sodium.
Patent GB-1428241-A (GB)
Title: High voltage current transformer
IPC: H01F38/28
Filed: 1973-03-27
Abstract: 1428241 Current transformer STROMBERG AB OY 27 March 1973 [7 April 1972] 14780/73 Heading HIT A current transformer comprises a hollow insulator 8 within which is a main insulator 2 comprising concentric elements of metal foil 10 alternating with insulation 11 with a winding 4 in core-portion 6 outside and winding 5 around core portion 3 inside, the two core portions being magnetically separated by the insulator 2. Connections are made by conductors as shown. The length of tube 2 is 2H + H<SP>1</SP> where H# the shortest distance to withstand the voltage and H<SP>1</SP> is the axial length of the core. The insulating cylinders 11 are longer than the foil cylinders 10. Successive metal foil cylinders are staggered axially by a distance H/m where m is the number of insulating cylinders 11.
Patent GB-144275-A (GB)
Title: Puncture-proof inner tubes for tires
IPC: B60C5/08
Filed: 1920-05-31
Abstract: 144,275. Sawyer, P. A., and Burton, W. C. Nov. 8, 1918, [Convention date]. Air-tubes. - A reinforcement 3, consisting of continuous layers of cotton duck, or other resistive material, is arranged on the inner tread surface of the tube 1, the outer surface of which is of circular cross-section.
Patent GB-1110613-A (GB)
Title: Magnetic tape search unit
IPC: G06F17/30
Filed: 1966-04-04
Abstract: 1,110,613. Transistor pulse circuits. MOBIL OIL CORPORATION. 4 April, 1966 [6 April, 1965], No. 14826/66. Heading H3T. [Also in Divisions G4 and G5] A mono-stable flip-flop circuit (Fig. 7) for use in a magnetic tape memory search unit (see Division G4) comprises two cross-coupled transistors 100, 101 of which 101 is normally conducting, and which is set to its quasi-stable state by a negativegoing pulse applied to the base of a transistor 104, the collector of which is connected to the collector of transistor 100. The true output is taken from the collector of transistor 101 and is inverted by transistor 105 to provide a complementary output. A bi-stable flip-flop (Fig. 8) comprises two identical cross-coupled transistors 200, 201 and associated components. A negative-going input pulse applied to the base of a transistor 202 acts to switch the flip-flop from its normal state wherein transistor 201 is conducting. A reset pulse applied to a transistor 203 acts to render transistor 201 conducting again. An emitter follower having a relay coil in its emitter circuit is connected to the true output of the flip-flop. A bi-stable flip-flop (Fig. 9) acting as one half of a counter has a reset pulse applied as in Fig. 8, but the input pulse is applied via an emitter follower to a common emitter junction of the cross-coupled transistors 300, 301. The output transistor 308 includes an indicating lamp in its emitter circuit. A transistor inverting amplifier is shown in Fig. 10 (not shown), and includes a Zener diode connected to the base of the transistor to provide a step voltage input to the transistor.
Patent GB-339925-A (GB)
Title: Improvements in steam reheaters
IPC: F22G1/00
Filed: 1930-05-14
Abstract: 339,925. Babcock & Wilcox, Ltd., and Davy, C. H. May 14, 1930. Superheating by steam. - Exhaust steam is reheated in a casing 1 by high temperature live steam supplied to tubes 2 traversing the casing and connected to headers 3, 4. The exhaust steam passes downwards between the casing and a shell 12 around the tubes and then upwards among the tubes, finally passing through an outlet 15 at the top of the casing. The headers 3 are connected by transverse pipes 5 to a distributor 6 supplied with live steam through a pipe 7. The headers 4 are connected to a box 8 which is connected by a pipe 9 to a drum on which the water-condensation from the tubes collects. The water level in the drum is maintained constant by a thermostat 23 operating a valve controlling a pump discharging water from the drum into the high pressure feed line. The tubes and headers are suspended from angle irons 24 secured to the upper and detachable portion of the casing. The exhaust steam is guided in a helical course around the shell 12 by a baffle 13.
Patent GB-878351-A (GB)
Title: Improvements in or relating to grain and fertilizer drills and the like
Inventor: TONGE SIDNEY
IPC: A01C15/00
Filed: 1958-05-09
Abstract: 878,351. Fertilizer distributers. DENINGS OF CHARD Ltd. May 11, 1959 [May 9, 1958], No. 14900/58. Class 6(1). A fertilizer, grain or like drill comprising a hopper 1 containing a number of rotary wheels 2 for moving the material and assisting it to pass through holes in the bottom of the hopper is characterized in that a load relieving plate 7 is located in the hopper to support the material and having apertures 8 therein through which the material may fall. As shown the plate 7 rests on vertical curved walls extending partially round the wheels 2. A fillet 11 is provided to guide material to the apertures 8.
Patent GB-235717-A (GB)
Title: Improvements in stands for motor cycles, and the like
IPC: B62H3/00
Filed: 1924-06-20
Abstract: 235,717. Fletcher, F. T. June 20, 1924. Supports. - A detachable lever for raising a motor-cycle on to its stand consists of a bar 5 adapted to be attached to one of the side stays of the stand by means of an inwardly-projecting lug or claw 5b at its lower end, and a lug or hook 6, which may be slidably mounted on the bar to engage the most suitable part of the stand or cycle frame, the upper end of the bar then acting as an extension or hand-lever for the stand to enable the latter to be levered about its point of contact with the ground. The bar 5 may be bent at 5<c>, so as to clear the tool-box &c.
Patent GB-820996-A (GB)
Title: Improvements in and relating to can openers
Inventor: LINDAHL HENNING WALDEMAR
IPC: B67B7/70
Filed: 1957-05-10
Abstract: 820,996. Can openers. LINDAHLS MEKANISKA A.B. May, 10, 1957, No. 15009/57. Class 66. In a can opener of the type having a feed wheel 1 on a shaft 3 rotatable by a crank arm 6, and slidable means 11 for moving a cutting wheel 7 towards the feed wheel 1 to initially grip and puncture a cam and cause gears 2 and 8 associated with the feed wheel 1 and the cutting wheel 7 respectively to mesh, there is provided an eccentric disc 13 rotatable on the shaft 3 and adapted on rotation of the crank 6 anticlockwise as viewed in Fig. 1 to be connected to the crank 6 to move the slidable means 11 upward to part the wheels 1 and 7, and when the crank 6 is then rotated in the opposite direction as indicated by the arrow 20 to move the cutting wheel 7 back towards the feed wheel 1 before being disconnected from the crank arm 6, this action being effected by a disc 17 rotatable with the shaft 3 but tiltable to a position as indicated by the broken lines, the disc 17 having an arm 18 with a projection 19 thereon that can extend into a recess 16 in the eccentric 13 but is withdrawn therefrom when the arm 18 passes over a projection 15 on the slide 11. Method of operation.-When the crank 6 and thereby the disc 17 are turned clockwise, as indicated by the arrow 20, the projection 19 on the arm 18 snaps into the recess 16 of the eccentric 13 but is immediately lifted out of it as the arm 18 passes over the projection 15. Upon rotation of the crank 6 anti-clockwise the arm 18, after passing over the projection 15, will allow its projection 19 to snap into the recess 16 in the eccentric 13 to rotate the eccentric 13 through substantially half a revolution to displace the slide 11 to an upper position and thus part the wheels 1 and 7. When the crank 6, and thus the arm 18, are again turned in the direction of the arrow 20 the projection 19 turns the eccentric 13 clockwise until the arm 18 passes over the projection 15 to disengage the projection 19 from the eccentric 13. The wheels 1 and 7 are then in mesh with each other and further rotation of the crank 6 in a clockwise direction then operates the cutting wheel 7.
Patent GB-739080-A (GB)
Title: Improvements relating to servo-tabs for aircraft control surfaces
IPC: B64C9/00
Filed: 1952-06-13
Abstract: 739,080. Servo tabs on aircraft. HUNTING PERCIVAL AIRCRAFT, Ltd. [formerly PERCIVAL AIRCRAFT, Ltd.], and BRADBURY, C. Sept. 14, 1953 [June 13, 1952], No. 15017/52. Class 4. In an operating mechanism for a servo tab on an aircraft, the control surface 10, which is pivotally mounted on an aerofoil surface 11 such as a wing or helicopter rotor blade, is divided vertically into two parts 12, 13 respectively pivoted to the surface 11 at 15, 14 and formed at their trailing edges with hinges 17, 18 to which the upper and lower leading edges of a servo tab are pivotally attached, so that the surface 11 and the tab 16 and the parts 12 and 13 respectively constitute the opposite members of a four-bar linkage whereby movements of the surface 10 produce automatic movement of the servo tab 16. The gearing ratio between the two may be varied by alteration of the distances between the hinges 15, 14 and 17, 18. These hinges may be continuous to preserve the continuity of the outer surfaces and the surface 10 may be operated by the mechanism described in Specification 739,063.
Patent GB-457388-A (GB)
Title: Improvements in and relating to coverings for roofs, terraces and like surfaces
IPC: E04D11/00
Filed: 1935-05-23
Abstract: 457,388. Roofs ; terraces ; tiles. GENERAL ASPHALTE CO., Ltd., MITCHELL, M. S., and LUKE, F. A. B., Romney House, Westminster. May 23, 1935, Nos. 15033 and 22391. [Classes 20 (iv), 87 (i), and 107] A watertight covering for roofs, terraces, and like surfaces comprises one or more layers b of mastic asphalt, bitumen or the like, upon or within which, when hot, are embedded, as shown in Figs. 1 and 3, asbestos tiles c, which are provided with a cement facing layer h, as shown in Fig. 4, and have been subjected to heavy compression prior to the setting of the cement layer. The asbestos body portion of the tile may include a binder. The tiles are, preferably, of a light colour, and the upper surface may be glossy or irregular. The tiles may have rounded corners, and they may have roughened or indented undersurfaces g<1>, Fig. 4, or apertures extending through the tiles, to key with the waterproof layer. The tiles may abut against each other or they may be arranged to provide intervening spaces for the reception of asphalt &c. b as shown in Figs. 1 and 3. When the asphalt b only partially fills the spaces between the tiles, a filling of bitumen &c. may be provided. The upper edge of the joint material between the tiles may be formed concave or convex by means of the correspondingly-formed edge of a bar of wood, metal or other material which is used to lay the tiles uniformly and in line. Between the layer b and the tiles c, there may be provided a layer f of bitumen grouting as shown in Fig. 3, such layer being formed of 87 per cent by weight of bitumen emulsion, 11 per cent of powdered asbestos, and 2 per cent of lime. The first Provisional Specification describes the use of asbestos tiles having no cement facing layer thereon.
Patent GB-438577-A (GB)
Title: Improvements in and relating to electric power switches
IPC: H01H33/56
Filed: 1935-05-23
Abstract: 438,577. Liquid - break switches. SIEMENS - SCHUCKERTWERKE AKT.- GES., Siemensstadt, Berlin. May 23, 1935, No. 15074. Convention date, May 24, 1934. [Class 38 (v)] A power switch working on the expansion principle comprises an insulating chamber 1 containing the fixed contact 2 and liquid, the level of which is shown at 14, which chamber is connected by a hollow insulator 12 with a housing 6 for the operating gear of the movable pin contact 9,whereby the interior spaces of the housing 6 and insulator 12 are directly combined to form a single space for the vapour produced under pressure by the arc to expand suddenly into when contact 9 leaves the chamber 1 in opening the circuit. An exhaust opening 13 is provided and may contain the devices for separating any liquid ejected from chamber 1 from the exhausting vapour.
Patent GB-223864-A (GB)
Title: Piston & spindle packing, for steam engines, v ring for same
IPC: F01B17/04
Filed: 1924-06-23
Abstract: 223,864. Neave, F. J. Oct. 27, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Packing, metallic; packing, removable casings, containers, or carriers for.-Two packing rings H, which may be segmental, are separated by an undivided brass &c. ring I, the packing being contained in a casing E and acted on by a follower G and spring F. A spherical ring D is placed between the casing E and the gland B.
Patent GB-457279-A (GB)
Title: Improvements in or relating to valves
IPC: F16K1/44
Filed: 1935-05-24
Abstract: 457,279. Making valves. BUGATTI, J., Molsheim, Bas-Rhin, France. May 24, 1935, No. 15205. Convention date, May 25, 1934. [Class 83 (ii)] [See also Group XXIX] An elastic valve head is manufactured by forming or initially connecting a thick head on or to a valve stem, forming a peripheral cut into the thick head to divide the latter into two parts or flanges 6, 7, and thinning down one of the parts to impart to it the desired elasticity and preferably finally drawing the peripheral portions of the said two parts near to one another while hot.
Patent GB-200314-A (GB)
Title: Improvements relating to the removal of the dust and fibre produced during the stripping of the cylinders and doffers of cotton and like carding engines
IPC: D01G15/82
Filed: 1922-05-30
Abstract: 200,314. Cook & Co. (Manchester), Ltd., and Milnes, A. H. May 30, 1922. Carding - engines. -A device for stripping the cylinders or doffers of carding- engines comprises a narrow brush a, which is traversed across the cylinder and is enclosed within a casing j, through which projects, close to the brush, a suction nozzle k of the same width as the brush. The suction takes away the dust and the fibres from the brush. The brush a is mounted on a hollow shaft b surrounding a shaft d having an endless spiral keyway e. A projection g on the brush passes through a slot i in the shaft b and engages the keyway. The shafts d and b are connected by differential gears to obtain a slow traverse.
Patent GB-1505116-A (GB)
Title: Vehicle loading and unloading apparatus
IPC: B60P1/52
Filed: 1975-04-14
Abstract: 1505116 Reciprocating rollerways; loading and unloading vehicles D E LUTZ 14 April 1975 [16 April 1974] 15216/75 Headings B8A B8E and B8Q  Apparatus for shifting loads comprises an extensible member running on rollers 38 and having a load supporting surface, e.g. rollers 44, the member being inserted beneath a load to lift the load, then being shifted to move the load, and then being removed from beneath the load whilst the load is held against movement. Alternatively, a load may be placed on the rollers 44 when the member is retracted, the member then being advanced before being retracted from beneath the load. The member comprises pivotally interconnected sections 36 supported on I-beams 30 which may be mounted in a vehicle on a loading dock. The sections are moved by means of a ram 66 whose piston-rod carries a trolley 74 provided with dogs 78 either of which can be pivoted to engage with the sections 36. The leading section 36a is tapered. A leading portion 19 of the beams 30 is pivoted and raised by a wedge advanced by a ram, to adjust for differing height differences between a vehicle and a loading bay. Both ends of the member have means for preventing movement of loads on the rollers 44.
Patent GB-1189151-A (GB)
Title: Insolubilizing Silicious Material
IPC: C04B41/65
Filed: 1967-04-03
Abstract: 1,189,151. Ornamenting. EXCALIBUR SURFACE COATINGS Ltd. 3 April, 1967 [4 April, 1966], No. 15223/67. Heading B6G. [Also in Divisions B2, B5, Cl, C3 and El] Sheet material for application to building structures, e.g. concrete walls or plaster, comprise sheets of insoluble silicious material prepared from a silicious material comprising a water-soluble silicate, free water and generally a filler. The sheets may be used laminated with sheets of asbestos cement, foam glass or plastic foam. The exposed surface of the silicious sheet may be corrugated or bear decorative aggregate, e.g. mica flakes or silicious chips.
Patent GB-464313-A (GB)
Title: Improvements in waist belt fasteners and the like
IPC: A44B11/00
Filed: 1936-05-29
Abstract: 464,313. Putting - up medical and surgical appliances MARQUIS, L. May 29, 1936, No. 15232. [Class 81 (ii)] [Also in Groups XVII and VII] A waist belt fastener for military and other belts is constructed as a container for medicaments, chemicals, tablets, surgical dressings, a tetanus phial, small instruments, or the like, and is closed by a screwed - on covei which may be in the form of a rotatable transparent disc 14, Fig. 10, having an aperture 17, the inner space of the cover being divided into compartments by walls 11. In a modification Figs. 13 and 14 (not shown), container and screwed-on cover may have coacting conical seating surfaces. Several containers 32, Fig. 15, may be secured to a coupling-lock 31. The closure is preferably air-tight.
Patent GB-532664-A (GB)
Title: Improvements in means for adjusting the shoes of internally expanding braking mechanisms
IPC: F16D65/42
Filed: 1939-05-24
Abstract: 532,664. Adjusting brakes. NEW HUDSON, Ltd., and BERROWS, P. W. May 24, 1939, No. 15358. [Class 103 (i)] Adjusting means for the shoes of internal expanding brakes comprises an adjusting element for effecting a first stage of adjustment and an adjusting element for effecting a subsequent stage of adjustment, which comes intoaction automatically when the range of adjustment permitted by the primary adjusting element is exhausted. Plungers 5 which engage at their ends 5a the ends of the respective brake shoes are adapted to be moved apart to effect the first stage of adjustment by the frusto-conical end 8a of a rod 7a screwed into a casing 6 fixed to the brake back-plate. When the part 8a has been moved axially beyond the plungers 5 so that its range of adjustment is exhausted a second frusto-conical element 9a splined on the rod is engaged by shoulders 8c on the rod so that it is moved axially to effect adjustment over a further range. A considerable amount of adjustment is thus obtainable without undesirable increase of the space required in the housing for the adjusting element. The head 8a is formed with five flats which engage corresponding flats 5c on the ends of the plungers 5 and flats between the flats are continued at 8b to form the splines for the element 9a which is formed with flats similar to those of the head 8a.
Patent GB-343403-A (GB)
Title: Improvements in and relating to vacuum brakes for vehicles driven by two-stroke internal combustion engines
IPC: A43C1/00
Filed: 1930-05-19
Abstract: 343,403. Fluid-pressure brakes. JUNKERS, H., 21, Kaiserplatz, Dessau, Anhalt, Germany. May 19, 1930, No. 15379. Convention date, June 23, 1929. [Class 103 (i).] Vacuum brakes on a vehicle driven by a two-stroke internal-combustion engine are operated by a negative pressure generated by the scavenging pump of the engine. An engine having three working cylinders 1, 2, 3 and supplied with scavenging air and air of combustion by three scavenging pump cylinders 4, 5, 6, is provided with a throttle valve 10 in the air inlet 9 to one of the cylinders and a pipe 11 having a non-return valve 22, leading trom this air inlet from behind the throttle to the brake cylinder 12. The brake is brought into operation by closing the throttle by means of a foot pedal 21. Where scavenging pumps with rotary pistons, Roots or cellular blowers and tube blowers with a plurality of rotors operating in parallel are used the admission to one of the rotors may be throttled. In a modification the scavenging pump piston 30 is connected direct to the engine piston 31 and the working chamber of the pump is formed by the annular chamber 32 in which a negative pressure is set up before the air inlet 34 is uncovered. A pipe 32 having a non-return valve 36 and a balance chamber 37 connects the brake cylinder 12 to the chamber 32 and is controlled by a cock 38 adapted to connect the brake cylinder to atmosphere or to the chamber 32. In a scavenging pump with controlled ports that portion of the mechanism controlling the suction may be so designed or set as to obtain retarded admission and high vacuum in the cylinder during the first part of the piston stroke.
Patent GB-129332-A (GB)
Title: An Improved Method of and Means for Applying Dope or the like to the Surfaces of Parts of Aircraft.
IPC: D06B3/10
Filed: 1917-10-23
Abstract: 129,332. Nieuport & General Aircraft Co., Hall, H. L., and Sharp, C. A. Oct. 23,1917. Noxious gases from manufacturing operations, collecting and conveying away.-In applying dope &c. to the parts of aeroplanes or other aircraft, the parts are supported so as to hang mainly in a vertical plane by carriers h which run on rails extending through an applying chamber a and a drying chamber e. Air, drawn through the chambers by a suction fan v, enters the applying- chamber a through a chamber containing hotwater pipes c, passes into the drying-chamber e over a second heater f, and leaves by openings n. Part of the air may be by-passed through an adjustable shutter s and flue r. The bottom runners h<1> of the carrier h are mounted on hinged arms so as to rise above the heater f, or the heater f may be arranged at the top of the chamber or separate heating-pipes may be arranged vertically between the guides for the carriers. The back ends of the carriers may be made solid so that they close off part of the drying-chamber when advanced into it.