baber/WOPTO huggingface dataset:
Patent GB-274571-A (GB)
Title: Improvements relating to variable speed gears and the like
IPC: F16D15/00
Filed: 1926-04-23
Abstract: 274,571. Farley, J. April 23, 1926. Clutches, friction; facilitating changing speed. -A friction clutch comprising wedging members such as rollers or balls and adapted to be disengaged by pins which register with a control cage is specially applicable to facilitate changing speed. Rollers 5, Figs. 1 and 2, when free to do so will jam in either direction between flats on a polygonal boss 4 and a cylindric friction surface 3 within a gear 2 loose on a shaft 1. The rollers 5 are carried in notches in a divided cage 6 which is supported on central webs 7 in an annular recess 11 in the boss 4. The clutch is shown in Fig. 1 engaged, the cage 6 being angularly displaced. To disengage the clutch, the cage 6 is forced to and held in a middle position. For this purpose, taper register pins 10, Fig. 2, which turn with the boss 4, are thrust into holes 8, Fig. 3, in the cage. The pins 10 are carried by a ring 9 operated by a control fork. The parts of the cage 6 are normally held apart by springs 13. The cage 6 has an external flange 14 with peripheral notches 14a which, in the engaged position, engage pins 15 on the gear face, and so help to lock the transmission rollers. A variablespeed gear according to Specification 221,323 is described with one such roller clutch, a difference being that the gear is disengaged when the clutch ring with the register pins is moved towards it. In Fig. 10 a clutch according to the invention is arranged on the countershaft of a variable-speed gear. When a gear change is to be made, a cam 32 on the control lever 31 causes the register pins 10 to be thrust home, so freeing the countershaft from drive and facilitating the change of mesh. In another form, the connection with the control of the main clutch upon a vehicle is described. Specification 275,530 also is referred to.
Patent GB-828362-A (GB)
Title: Improvements in or relating to oxygen breathing apparatus
Inventor: SPIDY ALEXANDER RONALD
IPC: A62B7/14
Filed: 1957-04-04
Abstract: 828,362. Respiratory appliances. KIDDE CO. Ltd., W. June 9, 1958 [April 4, 1957], No. 10998/57. Class 81 (2). Oxygen breathing apparatus for aircraft, in which masks are automatically presented to passengers when the cabin pressure falls below a predetermined minimum, has means for admitting oxygen under pressure to a supply line, under predetermined pressure conditions, and pressure-actuated latch means for releasing masks from a storage locker. In the complete installation the supply line 5, Fig. 1, has a number of points 6, to which mask presentation units 7 or individual masks 8 may be connected, and has a first storage cylinder 1 connected through a pressure sensitive valve 9 and reducing valve 10 so that when the cabin pressure falls to a predetermined minimum the valve 9 opens automatically and gas is admitted to the lines 5 and 15. The internal pressure closes a vent valve 14 and opens a valve 17, Fig. 2, which admits it to a manifold 16 and thence to the mask hoses 25. In addition it releases a latch 20 through an aneroid control device 19 so that the door 21 of the locker opens and the masks drop downwards. At this stage, however, no gas passes to the masks since in each hose a telescopic valve 26 is held closed by the clip 33, in which it is retained, but as soon as a passenger pulls the mask downwards towards himself, this valve body is pulled clear of its clip and its ends move apart, under the action of an internal spring, and the valve is opened, so passing gas to the mask. A secondary gas cylinder 2, Fig. 1, is also connected to the supply main 5 through a manual stop valve 11 and reducing valve 12, which is set to a lower pressure than the valve 10. After the system has come into operation the stop valve 11 is opened and, after cylinder 1 is exhausted and the supply pressure has fallen sufficiently for valve 12 to be operative, the supply is continued from cylinder 2. The system may also be supplied from a cylinder 3 through a reducing valve 41 set to a relatively low pressure and this is used when only one or a few passengers require oxygen under normal flight conditions. This supplies oxygen at a pressure sufficient to close the vent valve 14 but too low to release the locker catches and, under these circumstances, a mask 8 is fitted into an appropriate union 6 for the passenger concerned.
Patent GB-541597-A (GB)
Title: Improvements relating to plasticized polyvinyl choride products
IPC: C08K5/5415
Filed: 1940-06-28
Abstract: 541,597. Polyvinyl chloride compositions; artificial filaments. BRITISH THOMSONHOUSTON CO., Ltd. June 28, 1940, No. 11009. Convention date, June 29, 1939. [Classes 2 (ii) and 2 (iii)] A material for use in the preparation of transparent, extensible, non-tacky products consists of plasticized polyvinyl chloride and a hydrolysable tetra ortho silicate derived from a normal monohydric aliphatic alcohol, with or without a small amount of normal butyl, amyl or octyl borate. Specified plasticizers are tricresyl phosphate, dibutyl phthalate and acetylated castor oil. Filaments, twine, cordage, hawsers and sheets may be prepared by extruding a solution of the material in a water miscible organic solvent into water, which acts as a coagulant ; bags may be prepared by coating the interior of a hollow body with the solution and coagulating with water. In examples, a solution from which a bag may be prepared consists of polyvinyl chloride, tetraethyl silicate, and tricresyl phosphate dissolved in acetonyl acetate ; by adding normal butyl borate to the solution, a composition suitable for the preparation of filaments is obtained, which composition coagulates more rapidly if electrolytes, such as sodium chloride or aluminium acetate, are added thereto.
Patent GB-513602-A (GB)
Title: Improvements in and relating to fasteners
IPC: A47G27/04
Filed: 1938-04-11
Abstract: 513,602. Stud fastenings. FERNBERG, E. B. April 11, 1938, Nos. 11062 and 14851. [Class 44] A stud fastening for securing together two members, such as a trim pad and vehicle panel, by insertion through registering apertures therein, comprises a strip 1 of metal bent to form shouldered and neck portions adapted to snap into engagement with the edges of the apertures, a washer 3 encircling the neck portion 2, and outwardly turned feet enclosed between the washer and a button head 4. This head may be of any desired form. As shown, it is circular dome-shaped, with a circular washer aperture. Pips 5 are provided on the washer to ensure clearance to allow movement of the feet in compressing and expanding the part 1. Alternatively, one foot may be movable, the other being fixed. Part 1 may be inserted nose first through the washer before attaching the head 4, which may be done by spinning the rim of the cap over the edge of the washer, or by providing the cup rim with tongues bent over the washer or prongs passed through slots in the washer and clinched. Alternatively the part 1 may be inserted in the washer feet first. To allow this, the washer may have a radial split, or the edge of the washer aperture may have an L-shaped slit to provide a tongue, bent out of the plane of the washer to form a slot through which the feet may be inserted in succession by twisting part 1. With this latter form the head may be omitted. Instead of pips 5, clearance for and turning of the feet in the head may be secured by ribs on the washer tangential to the aperture, or the washer may have a depression to receive the feet, a solid distance-piece between head and washer retaining the'feet in the depression. The washer may have a peripheral lip 8, Fig. 13, which also shows a rectangular aperture with inturned sides 11 to provide distance pieces. The button head may be covered with fabric with its edges clamped between head and washer. Specifications 451,721 and 497,719 are referred to.
Patent GB-527445-A (GB)
Title: Injection nozzle for gas-producer and gas-producer adapted to use said nozzle
IPC: C10J3/80
Filed: 1939-04-12
Abstract: 527,445. Gas-producers. PONCET, J. L. P., and VALLERNAUD, J. P. A. April 12, 1939, No. 11079. [Class 55 (i)] A mixture of water vapour and air in proportions dependent upon the rate of gas generation is supplied to a gas producer by an injection nozzle, air being drawn in through a chamber 9 in which is mounted a flap 11 hinged at 12, and co-operating with a seat 13. The air passes partly through holes 23 into the bore 25 and partly through a tube 2 with a flared inlet 6 to an opening 37 in an extension 35 provided with fins 36 which cool the nozzle and heat the air. Water is admitted through a calibrated nozzle 18, flows across the flared opening 6 and excess water passes down a groove 19 to an outlet 21. Some of the water is carried by the air current through the tubes 2, the amount being dependent upon the volume of air drawn in and the extent to which the flap 11 is lifted to allow . more air to enter the tube 2. The water is vaporized by the heated fins before reaching the fuel bed. The chamber 9 is easily detachable to allow of the use of a torch for starting purposes.
Patent GB-586850-A (GB)
Title: Electricity conductor unit
IPC: H01R25/16
Filed: 1944-06-09
Abstract: 586,850. Electric conduits. O'BRIEN, J. F. June 9, 1944, No. 11079. Convention date, June 9, 1943. [Class 36] [Also in Group XXXV] In an electric wiring system, a conductor unit has one leg formed by a copper conductor and the other by two conductors, each of less conductivity than copper but together substantially equal to it. The copper conductor 19 is solid or tubular whilst the conductors 17, 18 are of cadmium-plated iron and are connected at intervals by phosphor-bronze clips 22. The conductors seat in notches in transverse walls 16 as described in Specification 559,266. Pairs of spring contacts 21 are provided to connect to the conductors 17, 19 or 18, 19. The conductors 17, 18 are connected in parallel in the first or feed unit where connection is made to a two-wire circuit. The body 14 and base-plate 15 are formed of a phenol condensate resin.
Patent GB-1111028-A (GB)
Title: A semiconductor device incorporating a pressure multiple electrical contact assembly
IPC: H01L23/482
Filed: 1967-03-09
Abstract: 1,111,028. Semi-conductor devices. WESTINGHOUSE ELECTRIC CORPORATION. 9 March, 1967 [8 June, 1966], No. 11125/67. Heading H1K. A spring loaded contact assembly in a semiconductor device includes a deformable insulating disc 12 of P.T.F.E. or P.T.F.C.E. which forces contact members 30, 36 against contact areas or regions 61, 62 of a semiconductor body. The contact members (which consist of Cu, Ag, Ni, Au, In, Sn, or basealloys thereof) have portions passing through holes extending from face to face of the de formable member 12, and have silver wires 34, 38 attached thereto. The deformable member under the action of spring washers 74, 76 is forced to adopt the surface contour defined by the special shaped end zone 61 and zone 62 of the semi-conductor body. As described the complete device has a threaded contact stud 42 of Cu, Ag, Al, of base alloys of these (e.g. brass), or of ferrous-base alloys to which is brazed a cylindrical housing which may be of ferrous-base alloy. On the stud is a layer 58 of a soft metal (Au, Ag, Sn, In, Pb, or Al) to compensate for surface irregularities between the stud and a (gold-plated) disc of Mo, W, Ta or of base alloys thereof. A solder layer 68 (Ag/Pb/Sb) lies between this and the semiconductor body comprising layers 61, 62, 63 with PN junction between adjacent layers. The spring washers 76 act between metal thrust washers 74, 78 the lower of which acts on an insulating washer 72 of ceramic, mica, glass, quartz, or fluorocarbon. The upper thrust washer is retained in the assembly by a snap ring 80 fitting a groove in the housing wall. An apertured insulating disc stops excessive lateral movement of the silver wires 34, 38 to prevent them from damage. Lying on the disc is a moisture getter formed by a ring 88 of a molecular sieve. The cover 94, 96 is projection welded on to the casing. The silver lead 34 is swaged or rolled within its surrounding sleeve to form a seal and the other lead 28 is terminated with a blind sleeve from which a further lead 108 extends.
Patent GB-695154-A (GB)
Title: Improvements in crash guards for motor cycles
Inventor: EVANS CLAUD ALAN
IPC: B62J27/00
Filed: 1951-05-15
Abstract: 695,154. Crash guards for motor-cycles. MOTOR CYCLE EQUIPMENT (BIRMINGHAM), Ltd. May 15, 1952 [May 15, 1951], No. 11244/51. Class 136 (i) A crash guard for motor cycles is attached to the down tube through the medium of a curved guide 3 slidable on a mounting member 5, 6 so that the angular position of the guard relative to the motor cycle frame may be adjusted. The guard comprises two bars 1 connected by bridge pieces consisting of straight strips 2 and curved strips 3 having slots 4. The down tube of the motor cycle is held in a clip formed of two strips of metal 5, 6. The strip 5 is connected to the strips 3 by bolts 7 which slide in the slots 4 until the guard is in the correct angular position and are then tightened to obtain a rigid connection.
Patent GB-215940-A (GB)
Title: Improvements in and relating to stair-rods
IPC: A47G27/06
Filed: 1923-12-13
Abstract: 215,940. Aldam, E. H. Dec. 13, 1923. Stair rods and fastenings.-A stair rod is provided near each end with a longitudinal slot a<1> and a communicating vertical slot a<2> in the face adjacent the riser. The vertical slot is continued into an enlarged opening in the lower face a<3>. The heads of nails or screws, fixed to the riser of the stairs, pass through the enlarged openings and engage the edges of the longitudinal slot. In order to give a tightening action the longitudinal slot may have tapered edges or may be inclined. The rods are preferably of triangular section, and in the case of wooden rods a recess is cut to accommodate the screw or nail head and the longitudinal and vertical slots are formed in a brass strip at the back.
Patent GB-178856-A (GB)
Title: Improvements in or relating to furnaces
IPC: F23C99/00
Filed: 1922-04-21
Abstract: 178,856. Babcock & Wilcox, Ltd., (Assignees of Soc. Franþaise des Constructions Babcock et Wilcox, and Roszak, C.). April 22, 1921, [Convention date]. Pulverulent-fuel furnaces.-A mixture of pulverulent fuel and air is delivered into a combustion chamber in downwardly inclined streams parallel to an inclined heat-radiating floor 2 and to the tubes D of a boiler and below the heatradiating arch 1. Air for secondary combustion from the chamber 3 passes through apertures in the floor 2 to the combustion chamber. Ashes &c in a molten condition flow over the lower edge of the floor into the chamber 3. Inspection doors F are provided through which may be inserted a charge of wood for starting purposes.
Patent GB-113739-A (GB)
IPC: F16B39/10
Abstract: 113,739. Cammiss, E. E. July 31, 1917. Locking nuts.-A washer a having projections b to fit grooves in the bolt is placed below the nut, which is locked by a pin placed in a hole c in the washer.
Patent GB-1390766-A (GB)
Title: Bacteriological test method
IPC: C12M1/20
Filed: 1971-04-26
Abstract: 1390766 Gel plate test device BEECHAM GROUP Ltd 24 April 1972 [26 April 1971] 11390/71 Heading G1B [Also in Division C6] A device for testing micro-organisms comprises a base member A which contains one or more depressions B, C, which are less than 1 cm deep and are filled with a gelled nutrient medium, and a sheet of absorbent material D which is impregnated with one or more antibiotics E in such a way that the antibiotic can be contacted with the whole surface of the corresponding gel filled depression.
Patent GB-179161-A (GB)
Title: An improved combined water container and basin
IPC: B60R15/02
Filed: 1922-04-24
Abstract: 179,161. Peschardt, C. A. C. April 30, 1921, [Convention date]. Liquid containers.-A clcsed container 2 for water fits into and completely fills an open outer container 1 forming a wash-hand basin, the combination being particularly applicable for motor-vehicles. The closed container 2 is formed with a flange 3 or with handles, and is cut away at one corner and provided with a spout and closure.
Patent GB-1309265-A (GB)
Title: Apparatus on wheeled axles for the measuring and where appropriate for the correcting of track position
IPC: E01B33/00
Filed: 1970-03-10
Abstract: 1309265 Track aligning machines F. PLASSER [trading as FRANZ PLASSER BAHNBAUMASCHINEN] 10 March 1970 [28 March 1969] 11508/70 Heading B7N  In a track aligning machine, the ends &c., of the reference line or chord system are held at a fixed position relative to the grade rail by a remote control drive arrangement. Assuming rail 15<SP>1</SP> is the grade rail, the left hydraulic piston 20<SP>1</SP> is energized moving the flange of wheel 14 into contact with rail 25 and the support 18 to the right into contact with abutment 25<SP>1</SP> thereby moving the flange of wheel 14<SP>1</SP> into contact with grade rail 15<SP>1</SP>. The-end of the reference line or chord passes over pulley 20, mounted on the support 18, to tensioning spool 22. When rail 15 is the grade rail the right hand piston 20<SP>1</SP> is energized moving the elements to the broken line positions.
Patent GB-149076-A (GB)
Title: Improvements in or relating to the construction of thermionic valves
IPC: H01J19/42
Filed: 1919-05-08
Abstract: 149,076. Mullard, S. R. May 8, 1919. Vacuum tubes. - A thermionic valve has a cylindrical anode 14 mounted co-axially in a silica bulb by means of wires or rods 17, which are sealed within sleeves 18 fused to radial extensions 12 of silica rings 11 supporting the grid, and to the bulb. The grid consists of wire 4 wound around three wires 5 secured in hollow sleeves 8 fused to the rings 11. The filament cathode 2 is mounted in long narrow seals consisting of tubes 3, fused to the outer ends of other tubes 30, so as to permit of re-sealing after a filament has been replaced. The filament may be supported at the centre from a wire 22 secured to the tubes 3 by horns 26 and lacing 27. Expansion coils 24 may be connected to the filament and to the wire 22. According to the Provisional Specification, the anode may be supported at each end by three metal strips sprung outwards to engage in silica sleeves on the bulb.
Patent GB-476538-A (GB)
Title: Improvements in tipping wagons
IPC: B65F3/26
Filed: 1937-04-23
Abstract: 476,538. Vehicle bodies. SCHMIDT, K. April 23, 1937, No. 11640. Convention date, Feb. 26. [Class 108 (i)] In a tipping body for a dust wagon having a rear closure wall, the latter is provided above its axis of rotation with struts which serve as carriers for guides for the pulling and controlling members of the locking device. In the form shown in Fig. 1, the end gate 2 is provided with locking bolts 7 which engage at their lower ends in plates 8 and at their upper ends are connected to cords 4 which pass over pulleys 6 and are connected to a con- .venient part of the chassis. On tipping of the body 1 the bolts 7 are raised by the cords 4 until they are disengaged from the plates 8 and until stops 9 thereon engage stops 10 on the end gate 2 after which further tipping causes the gate to open. In the form shown in Figs. 5 and 6, the cords 4 are connected through arms 17, 18 to links 19 slidable on the end closure 12 of the refuse cart 1. The lower ends of these links are connected to latching means comprising a treadle lever 21 and a curved arm 24 engaging a part on the body 1. A spring 31 may be provided to bias the links 19 to latching position.
Patent GB-958937-A (GB)
Title: Cyano-aldehyde synthesis
Filed: 1962-03-27
Abstract: 4-Cyano-2, 2-dimethyl butyraldehyde is made by reacting 1 mol isobutyraldol with at least 2 moles of acrylonitrile, preferably between 2 to 4 moles at 50 to 95 DEG C. in the presence of catalytic quantities of alkali-metal hydroxinoles, i.e. 1/10 to 1/500 of a mole per mole of isobutyraldol. The alkali-metal hydroxide is preferably employed as a 40 to 70% by weight aqueous solution. Examples illustrate the use of aqueous sodium and potassium hydroxide.  The prior act refers to U.S.A.  Specification 2,409,086 and French Specification 886,846.
Patent GB-549272-A (GB)
Title: Broad band amplifiers
IPC: H03F1/50
Filed: 1941-09-12
Abstract: 549,272. Cells. STANDARD TELEPHONES & CABLES, Ltd. Sept. 12, 1941, No. 11699. Convention date, Sept. 20, 1940. [Class 53] [Also in Group XL] The cells of a battery may each be formed of a thin bimetallic cup about one quarter inch diameter and fitted one inside the other with electrolyte and separators.
Patent GB-943579-A (GB)
Title: Method of and apparatus for pulverizing material
IPC: B02C19/06
Filed: 1962-03-27
Abstract: 943,579. Jet pulverizers. CANADIAN TITANIUM PIGMENTS Ltd. March 27, 1962 [April 4, 1961], No. 11703/62. Heading B2A. The grinding chamber 36 of an apparatus for grinding silica sand, salt, pigment &c., comprises two end walls 40, 41 and a ring-shaped side wall 32 which has means for admitting a plurality of angularly-spaced streams of gas under pressure into the outer portion of the chamber, an inlet 70 formed in the end wall 41 for material to be ground, means 75 adjacent the inlet to cause such material to be directed radially outwardly in the chamber under pressure, and an outlet 13 in the end wall 41 for the ground material. The means 75 is in the form of a circular plate secured to the end wall 40 and spaced therefrom by ribs 90 to provide a nozzle. Surrounding the side wall is a steam chest 21 which is provided with an inlet 20 and plugs 27 for gaining access to jets 30 which are screwed into a ring 31. Material fed into a hopper 15 is entrained by steam directed through a Venturi 61 and, on entering the chamber, is directed radially to come under the action of the jets 30. The particles of material impact against one another under a vortex action produced by the jets, the larger particles being carried outwardly by centrifugal force and the finer particles drifting inwardly until they are withdrawn at the outlet 13. In a modification, the flow directing means 75 is in the form of a flat plate disposed between an inlet tube and the outlet, and, in another modification, the inlet tube extends into the chamber and is provided with radially-extending openings around its circumference.