baber/WOPTO huggingface dataset:
Patent GB-871853-A (GB)
Title: Improvements in freewheel or unidirectional clutch devices
IPC: F16D41/061
Filed: 1959-06-10
Abstract: 871,853. Ratchet clutches. DAIMLERBENZ A.G. June 10, 1959 [June 10, 1958], No. 19894/59. Class 80 (2). A ratchet clutch comprises inner and outer races 2, 3, 4 with balls 1 therebetween mounted in a two-part cage 5, 6, the arrangement being such that in one direction of relative rotation between the races the balls wedge the two-part cage firmly against the races for torque transmission, while in the other direction of relative rotation, the balls run freely and the clutch acts as a ball bearing. The cage part 5 is formed with a frusto-conical surface 9 engaging frictionally with the surface of the outer race 3, and the cage part 6 is formed with a similar surface 10 engaging frictionally with the surface of the inner race 2. Springs (not shown) may be provided to bias the two parts of the cage away from each other in the axial direction and lightly against their coacting friction surfaces. The ball-receiving pockets in the cage consist of arcuate surfaces 7, joined by short rectilinear surfaces 8 inclined to a plane normal to the axis of the clutch. In the stationary condition shown, the balls 1 lie freely in the cage pockets. If it is assumed that the outer race 3, 4 remains stationary while the inner race 2 rotates in the direction of the arrow 11, Fig. 2, then on initiation of such rotation, the frictional engagement between the inner race and the cage part 6 draws the latter round so that the arcuate sections 7 of the pockets thereof engage the balls 1, and push them into the arcuate sections 7 in the pockets of the cage part 5, which latter tends to remain stationary because of its light frictional engagement with the outer race. Accordingly the balls 1 are located in the parts of the cage pockets having maximum axial width, and roll freely between the inner and outer races. If, however, with the outer race 3, 4 still held stationary the inner race 2 is rotated in the direction of the arrow 12, Fig. 2, then the rectilinear surfaces 8 of the cage part 6' engage the balls 1 as the cage part turns with the inner race. The balls 1 are thereby moved against the corresponding rectilinear surfaces 8 on the cage part 5, so that they cam the two cage parts axially away from each other and into firm engagement with the inner and outer races. Torque is accordingly transmitted between the inner and outer races 2, 3, 4. As shown, the outer race 3, 4 is in two parts, but alternatively it may be of unitary construction, while the inner race 2 may be of two-part construction.
Patent GB-1313400-A (GB)
Title: Cathode for wet electrolyte capacitors
IPC: H01G9/022
Filed: 1970-04-24
Abstract: 1313400 Electrolytic capacitors P R MALLORY & CO Inc 24 April 1970 [28 April 1969] 19904/70 Heading H1M To enable a wet electrolytic capacitor to withstand reversal of polarity when it is used with an electrolyte comprising sulphuric, nitric or phosphoric acid or an alkali metal salt thereof, the cathode can 11 has an internal pore-free coating 12 of gold, platinium or an alloy thereof. The metal of can 11 may be copper, silver, brass, bronze, steel or nickel-copper alloy. The effective surface area of the cathode may be increased by coating it with a layer 16 of finely divided gold, platinium or carbon. Layer 12 may be pre-formed or electroplated, or sheets of the metals of the two layers may be rolled together and formed into the cathode can.
Patent GB-1523872-A (GB)
Title: Building constructions
IPC: E04D13/064
Filed: 1975-08-07
Abstract: 1523872 Joining panels in portable buildings PORTAKABIN Ltd 7 Aug 1975 [7 May 1974] 19934/74 Headings E1A and E1B The roof 10 of a portable room unit is secured to a wall panel 12 by means of an elongate metal facia 13 having a vertical web and a horizontal flange 23 intermediate its edges, the flange engaging the upper edge face of the wall panel and the web engaging the edge face of the roof and the upper margin of the outer surface of the wall panel. A gutter 21 may be integrally formed with the extruded aluminium facia. A fixing bracket 29 on the inside, the subject of Specification 1523871 may also be integrally formed with the facia by extension of the flange 23 to form a web linking the two parts over the top edge face of the panel 12.
Patent GB-260364-A (GB)
Title: Improvements in internal combustion turbines
IPC: F02C5/02
Filed: 1925-08-08
Abstract: 260,364. Charles, J. L., and Charles, A. E. Aug. 8, 1925. Generating combustion products under pressure.-A combustion product turbine is supplied by one or more combustion units each comprising a cylinder with a combustion space at each end and a double acting piston 10 therein and a pair of compression cylinders 13 the pistons 12 of which are rigidly connected to the combustion cylinder piston 10. The charge enters the compression cylinders 13 by inlets 14 and passes through ports 16 to the combustion cylinder when these are opened by the reduced portions 11 of the piston rod 9. The combustion piston 10 acts as a valve to release the combustion products to the turbine which in their passage may draw in by injector action air or steam generated in a water container 3 which houses the combustion units. The firing of the plugs 15 is controlled by the compression pistons 12 acting on an adjustable spring-pressed pin 23 to close the electrical circuit. At starting cornpressed air admitted at ports 20 operates the pistons 12 and mixture is admitted through a port 17 to the combustion cylinder 10.
Patent GB-294529-A (GB)
Title: Lever apparatus for hoisting bags on to vehicles and the like
IPC: B60P1/44
Filed: 1928-07-10
Abstract: 294,529. Horsfall, P. July 25, 1927, [Convention date]. Lever load-handling appliarices; hoists with guided carriers. - Bags are raised and loaded on to a vehicle by apparatus comprising a carrier 36, 37, which is moved up the guides 12, 13 by to-and-fro movement of the lever 25 and is tipped at the top of the guides to deliver the bag on to the vehicle. The carrier is mounted on supports 31 provided with rollers 34 running on the guides. The guides comprise pairs of angle irons 10, 12 and 11, 13, each pair being connected by bolts 14, 15, 16, forming stops. The supports 31 are connected by a transverse rod 32 carrying a pawl 33 which normally prevents downward movement of the carrier past any of the stops 14, 15, 16. Pivoted on the rod 32 are links 29, 30 connected to the upper end of the forked operating-lever 25, 26, 27. This lever is pivoted on a rod 28 carried by a frame 18, 20, 21 between the inner guides 12, 13 and is normally prevented from moving downwards by a pawl 23 engaging the stops 14, 15, 16. In the position shown in broken lines in Fig. 3, hooks 41 on the carrier are about to take under a cross-bar 17 of a slider, Fig. 7, which moves freely in the guides 12, 13 between the stop 16 and the upper end. When the carrier is brought into this position by raising the lever 27 about the pivot 28, and the hooks 41 have engaged the slider 17, a downward movement of the lever 27 will raise the carrier and the slider 17. The carrier being now held in the new position by its pawl 33, an upward movement of the lever 37 will raise the frame 18 carrying the fulcrum 28. The frame 18 is held in the new position by its pawl 23 and the operations may be repeated. When the carrier reaches the top of the guides, Fig. 10, the hooks 41 come against an end stop and the upward movement of the links 29 tilts the carrier as shown in dotted lines to deliver the bag on to the vehicle and release the hooks 41 from the slider 17. The pawl 23 on the frame 18 is released by hand to lower the apparatus on the guides.
Patent GB-532802-A (GB)
Title: Improvements in and relating to collapsible containers for liquid
IPC: B65D88/16
Filed: 1939-07-10
Abstract: 532,802. Tanks. McCULLOCK, M. L. July 10, 1939, No. 20094. [Class 69 (i)] A collapsable container or reservoir for liquid in which the surrounding wall is made from flexible material is provided with a plurality of bracing members spaced around the wall and extending into the container, these members uniting the upper parts of the wall with adjacent parts of the base to prevent or assist in preventing the wall from bulging out or swaying when the container is charged with liquid. The bracing members may comprise fabric sheets stretched along one edge of the wall and along another edge of the base and may extend across the container to form partitions which are continuous and divide the container into separate water-tight compartments or which have openings or gaps therein. Alternatively, the bracing members may comprise a tripod structure consisting of rigid members one or two of which are held in a pocket or pockets in the wall while the lower end or ends of the remaining member or members are held or secured to spaced positions on the base. In one form, Fig. 1, the converging wall 12 is secured to the base 11 by sticking, and also to a top 13, bracing members 21, 22 of canvas with openings 23 being secured to the wall at 24 and to the base at 25. The top 13 has an opening 14 along which is stitched one edge of a flap 16 provided with a free edge 17 to which are secured the ends of ropes or cords 18 adapted to be secured to cords 19. A bolster 20 filled with kapok is stitched to one side of the opening and serves as a valve to close the opening 14 when the container is filled with water and as a support for one or more hose pipes used in filling the container. The wall 12 of the container may be made in separate pieces stitched together and the joints covered by strips 29. Extending outwardly from a filling opening 31 is a long canvas tube 32 which is secured to a pocket 33 on the wall 12, and is provided with rings 35 secured to strips 34 of canvas and a rope 37 which is threaded through rings 38, 39 stitched to the top 13. The base 11 may be supported on galvanized tubes 46, 47, 48 which are held against the base by ropes 49 secured to flanges 50 on the wall 12 and threaded through the tubes. In another form, the bracing members consist of triangular pieces of canvas and in another form, the bracing members consist of two diagonal partitions. In a further form in which the bracing members consist of partitions which divide the elongated container into water-tight compartments, a series of pipes extends from the end compartment to each of the other compartments. Specification 378,488 is referred to.
Patent GB-946048-A (GB)
Title: Solid state detector of radiation
Inventor: HILSUM CYRIL
IPC: H01L31/00
Filed: 1960-06-08
Abstract: 946,048. Semi-conductor devices. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Sept. 5, 1961 [June 8, 1960], No. 20127/60. Drawings to Specification. Heading H1K. A semi-conductor device suitable for detection of individual charge pulses caused by gamma radiation comprises a single crystal of gallium arsenide containing a deep acceptor and a shallow donor impurity the concentration of the former being greater than that of the latter. The resistivity of the crystal must be greater than 10<SP>5</SP> ohm cms., and the total charge carrier concentration less than 10<SP>8</SP> per c.c. As described, the shallow donor is silicon and the deep donor is oxygen. The theoretical ideal is that the two concentrations should be equal so that the material is " compensated," whereby none of the impurity centres can act as traps. With the low concentrations of impurities involved however this ideal cannot be realized in practice. But it is stated that with an excess of the deep acceptor, the excess acceptors become inactive. The material can be prepared in any of the following ways: (a) synthesis from purified gallium and arsenic in a crucible of synthetic sapphire; (b) manufacture in a silica crucible, admitting oxygen when the compound has cooled just below the melting point; (c) manufacture in a silica crucible, arsenic trioxide being added to the gallium and arsenic prior to synthesis; (d) floating zone'refining of low resistivity gallium arsenide which contains both shallow donor and deep acceptor impurities the former being in larger concentration then the latter. The detector is made from a 1 cm. x 2 mm. slab cut from the ingot, etched in aqua regia, washed in water and then in a mixture of H 2 0 2  and H 2 SO 4 . Contacts of pure tin indium or silver are melted on to its ends.
Patent GB-485425-A (GB)
Title: Improvements in power hammers or rams operating on the diesel cycle
IPC: B21J7/26
Filed: 1937-07-21
Abstract: 485,425. Power hammers. MENCK & HAMBROCK GES. July 21, 1937, No. 20213. Convention date, Aug. 7, 1936. [Class 83 (iv)] In a drop hammer operating on the Diesel cycle and of the type having a stepped piston the narrow part 1 of the piston is sufficiently long to prevent it leaving the lower walls w of the cylinder, and the annular space 2 below the large part p of the piston serves as a combustion chamber. Packing 9 maintains the extension 1 fluid tight in the lower part of the cylinder during part of the stroke, and channels 3 serve to establish communication between the lower part' of the cylinder and the annular space to assist scavenging. A cam surface 14 operates a trip lever 7, acting on the fuel pump to inject fuel into a channel leading to the injection point 13. An air inlet valve 7 and a suitably loaded outlet valve 8 are provided.
Patent GB-727815-A (GB)
Title: Improvements in tyre moulds
Inventor: SMITH HAROLD
IPC: B29D30/06
Filed: 1952-08-12
Abstract: 727,815. Tyre moulds. DUNLOP RUBBER CO., Ltd. July 20, 1953 [Aug. 12, 1952], No. 20235/52. Class 87 (2) To facilitate the removal of the completed tyre from a tyre mould the tread-forming face is formed of four arcuate segments 5, having moulding surfaces 7 detachably secured to them, the segments being radially movable by the engagement and disengagement of lugs 17 in inclined slots 14 formed in housings 11 attached to segments 5. Dove-tailed keys 8 attached to segments 5 slide in slots 9 in mould part 2 to constrain the segments to move in a radial direction and bolt 10 limits the outward movement. In operation, an assembled' unvulcanized car tyre cover and air bag are placed in the mould part 2 with segments 5 in their outer-most position, the top part 1 is then lowered and, guided by chamfered parts 12b and 15, lugs 17 engage the slots 14 thus forcing the segments 5 radially inwards with a cam action. The parts 1 and 2 may be attached to a press which secures the mould during vulcanization, the segments 5 being thus moved automatically outwards on separation of the parts to permit easy removal of the tyre.
Patent GB-221215-A (GB)
Title: Improved process and apparatus for the production of double-walled tubes
IPC: B21C25/00
Filed: 1924-08-27
Abstract: 221,215. BarmÚ, F. Aug. 27, 1924. Extrusion machines.-Hollow-walled tubes 2, Fig. 1, of rubber or other material are made by extrusion. The tongues d<1>, Fig. 2, to form the spaces 4 are carried by the plug h for forming the central hole, and this is so shaped that the material moves in an inward direction, as shown by the arrow, while being forced towards the die i.
Patent GB-760860-A (GB)
Title: Improvements relating to internal combustion engines
IPC: F02B3/06
Filed: 1954-07-12
Abstract: 760,860. Combustion chambers. DAIMLERBENZ AKT.-GES. July 12, 1954 [July 24, 1953], No. 20317/54. Class 7 (3). A main combustion chamber formed by a hollow 18 in the piston head is provided with spiral fins 21 inside the hollow in order to cause whirling of the air during compression, the spiral fins 21 radiating from a central space 20 which affords a space into which an injection nozzle or precombustion chamber outlet 15 projects at top dead centre. As shown, the fuel is injected into a precombustion chamber 13 the outlet orifices 16 of which are arranged so that each orifice injects into one of the spiralshaped sectors between two adjacent fins 21. The hollow 18 terminates in a flat rim 19 on the piston head and the top edges of the fins lie level with the rim 19. The chamber 13 is situated between four valves in the cylinder head. In a modification, Fig. 4, having only two valves in the cylinder head, the precombustion chamber is eccentric of the cylinder axis and may be parallel or inclined thereto, the fins 21 radiating from the space 20 and the openings 16 being inclined to the radii of the precombustion chamber outlet member 15. In further modifications the orifices 16 may be replaced by annular slits and the space 20 may be sunk more deeply than the part provided with fins, which fins may not extend to the level of the rim 19 so that fuel may be sprayed over the top thereof.
Patent GB-658953-A (GB)
Title: Apparatus for the discharge of railway trucks
IPC: B65G65/42
Filed: 1946-07-08
Abstract: 658,953. Loading and unloading. HOVERLANT, L. July 8, 1946, No. 20320. Convention date, May 17, 1945. [Class 78 (iv)] Rail trucks (not shown) are unloaded by a push plate extractor 31 which is supported at one end of a gallows arm 23 for pivoting and reciprocating movements in a horizontal plane, the other end of arm 23 being pivoted to a truck 1 relative to which it is vertically adjustable. Push plates 52 are secured to an endless chain driven by a sprocket 45 and passing over guide sprockets 47, one of which tensions the chain, and to prevent these plates from damaging the sides and floor of the truck a guard rail 54 extends around the extractor outside the path of the blades, and members 55, 56 extend beneath the level of the blade bases. The arm 23 is vertically adjustable by a screw 22 which engages a nut 15 and is rotated by a wheel 72, rotary movement of the arm being effected by a screw jack 25 which is extended by rotation of a wheel 27. A wheel 36 rotates a pinion 37 which meshes with a rack 38 secured to the extractor carriage 24, so effecting horizontal rotary movement of the extractor relative to the arm 23. A wheel 39 rotates a worm 41 which rotates a pinion 40 in mesh with a rack 43 and so effects reciprocating movement of the extractor relative to the arm 23, rollers 34 being provided, on the carriage 24, to guide the extractor during this movement. Thus with these movement controls the extractor can be inserted through a truck door and manoeuvred anywhere over the base to effect unloading of material into a hopper 13 on the truck. In a modification the hopper and arm 23 are mounted on a fixed structure.
Patent GB-326116-A (GB)
Title: Improvements relating to the extraction of borax
IPC: C01B35/12
Filed: 1929-07-03
Abstract: 326,116. Cramer, T. M. Dec. 19, 1928, [Convention date]. Borax is produced from sodium borate minerals especially Rasorite and Tincal by heating the ore under super-atmospheric pressure to a temperature substantially above 222‹ F., effecting thereby the solution of the borax in its own water of crystallization, thereafter separating the solution from the residue and cooling. The process which is particularly adapted to borate minerals containing a gangue which has a tendency to slime and mud when treated with water, may be carried out employing two autoclaves in tandem, as illustrated in the drawing. The coarsely crushed ore is fed through the manhole 25a onto a grid or porous support 11<a>. A form of water, such as the mother liquor from a previous operation is admitted through the connection 28a, and steam through the line 18a. The contents are kept under pressure of 30-50 lbs. per sq. in. for 20- 30 mins., and the strong first liquor discharged through line 19<a>. The insoluble residue remains on the grid, thereby forming a natural filter bed. The residue is further extracted, and the hot liquor from vessel I is transferred through pipe 20 to vessel II containing fresh crude ore only. The extraction is then proceeded with as in vessel I. After preferably at least two extractions, the residue on the grids, which may be dried by means of compressed air introduced through lines 27a and 27b, is raked out through manholes 26<a> and 26<b>. After the small amount of mud has separated in the settling tanks, the solution is drawn off, and the borax crystallized.
Patent GB-404695-A (GB)
Title: Improvements in or relating to illuminating devices
IPC: F21V7/00
Filed: 1932-07-21
Abstract: 404,695. Overhead, pedestal, and wall lamps. DOWNER, G. V., 5, Lansdowne Place, Guildford Street, St. Pancras, London. July 21, 1932, No. 20599. [Classes 75 (ii) and 75 (iv).] In an overhead, pedestal or wall lamp a light source is completely enclosed within a housing formed by arranging a reflector 2 edge to edge with a transparent or translucent diffusing bowl 4 of considerably greater diameter than the reflector, the latter projecting all or substantially all of the light on to a deflector 6 within or forming part of the bowl and adapted to permit a portion of the light to pass directly forwards without reflection and to reflect the remainder laterally downwards and upwards, some of the upwardly reflected light being directed by the inner surface of the bowl inwardly towards the axis of the lamp behind the reflector. The light source may comprise an incandescent gas mantle, an electric arc, or a gas-filled electric lamp bulb 1 and it may be adjustably mounted in a focusing gallery 3. The reflector 2 may be conical or frusto-conical, or parabolic in cross-section and made of highly polished aluminium, whilst the bowl 4 may be made of quartz or frosted or opal glass which may be tinted to give daylight or colour effects. Alternatively, a glass or quartz colour filter may be arranged across the mouth of the reflector, and this filter may slightly diffuse the beam projected by the reflector. The deflector 6 may be conical or frusto-conical, partly spherical or elliptical, or in the form of a trough-shaped wedge, and when formed separately it may rest directly on, or be spaced away from, the bottom of the bowl 4, and it may be formed by a strip or band of metal or mirror.
Patent GB-687876-A (GB)
Title: Improvements in and relating to domestic firegrates
IPC: F24B1/182
Filed: 1950-08-21
Abstract: 687,876. Fire grates. URE, A. F. Aug. 14, 1951 [Aug. 21, 1950], No. 20629/50. Addition to 645,111. Class 126 In a back to back grate provided with a chamber directly below the oven and open only at the front, and extending downwards beyond the fire bars to the ashpit, according to the parent Specification, a transverse baffle is provided to cover the front of the opening between the bottom of the oven and the fire bars. The oven d of a back to back grate is heated by a fire in space a, which also heats a boiler c. The top of a hot air chamber i is formed by the bottom of the oven, and the back and bottom of the chamber form a continuous incline j terminating at the bottom of the ashpit h. There is no through passage for the gaseous products of combustion below from the firebox below the oven to the flue. A baffle k of metal, which may be protected by a firebrick closes the front of the hot air chamber i below the oven, and serves to prevent coal and cinders falling over the rear of the firebars. The baffle may be formed by a continuation of the oven back.
Patent GB-148874-A (GB)
Title: Refrigerant and process of refrigeration
IPC: C09K5/04
Filed: 1920-07-10
Abstract: 148,874. Seaman, H. W., (Assignee of Crawford, A. G.). May 27, 1918, [Convention date]. Void [Published under Sect. 91 of the Act]. Refrigerating, compression machines and processes for.-A refrigerant for use in a compression refrigerating-system consists of one of the hydrocarbons of the Methane series that comprises more than two and less than five atoms of carbon, particularly propane and butane. The Specification contains a table comparing the physical properties of several of the hydrocarbons of this series.