baber/WOPTO huggingface dataset:
Patent GB-1398497-A (GB)
Title: Method of and means for rapid development of electrostatic images
IPC: G03G15/10
Filed: 1973-03-20
Abstract: 1398497 Electrographic liquid development RESEARCH LABORATORIES OF AUSTRALIA PTY Ltd 20 March 1973 [27 March 1972] 13454/73 Heading G2H An electrostatic latent image 37 on the front surface of a recording member 36 is developed, without wetting the rear surface of the member 36, by applying thereto a developer 32 comprising electroscopic marking particles suspended in an insulating carrier liquid by means of a roller 34, and subsequently contacting said front surface with a roller 39 carrying a layer 47 of insulating carrier liquid 44, the roller 39 constituting one of a pair of squeegee rollers 39, 40. The feeds of the developer 32 and the carrier liquid 44 to the rollers 34, 39 respectively, are controlled to maintain a layer 42 or 47 of 1-5 microns thickness of the appropriate liquid on each roller 34, 39. This may be effected in the manner illustrated in Fig. 2 or, as described in another embodiment, Fig. 1 (not shown), by metering each liquid into a separate trough each of which is closed along its bottom by a narrow porous compressed open cell wiper blade of such length that it contacts the whole width of the respective applicator roller which, in this other embodiment, is sited below it and above the front surface of the recording member. Optionally, the rollers 34, 35 may be electrically biased.
Patent GB-404289-A (GB)
Title: Improvements in or relating to welding or cutting blowpipes
IPC: F23D14/46
Filed: 1933-05-09
Abstract: 404,289. Blowpipe burners. LINDE AIR PRODUCTS CO., 30, East 42nd Street, New York, U.S.A.-(Assignees of Kehl, R. J. ; 215, 43rd Avenue, Bayside, New York, U.S.A.) May 9, 1933, No. 13465. Convention date, July 13, 1932. [Class 75 (i).] The handle of a blowpipe burner for welding or cutting metals has identically shaped ends in which the gas passages terminate at corresponding points and the gas control valves are arranged nearer one end than the other so that the burner may be used with the valves at either the front or rear end of the handle. Fig. 3 shows a welding burner in which the handle casing 12 encloses oxygen and fuel gas tubes 10, 11 connecting gas passages 15, 16 and 15<1>, 16<1> formed in a valve block 13 and a plug 13<1>. The block 13 and plug 13<1> are formed with identically shaped recesses 14, 14<1> in either of which may be secured by threaded sleeves 21, 21<1> of the same diameter the hose-supporting block B or the nozzle-supporting block N. The blocks B, N are formed with gas passages registering with the gas passages in the block 13 and plug 13'. The mixing nozzle 22 may be removably threaded to the block N and be formed with an oxygen passage 23 and fuel gas passages 24 discharging into a mixing chamber 27 leading to the burner nozzle.
Patent GB-1216763-A (GB)
Title: Improvements in or relating to piston pumps
IPC: F04B1/04
Filed: 1968-03-20
Abstract: 1,216,763. Reciprocating pumps. ALFRED TEVES G.m.b.H. March 20, 1968 [June 24, 1967], No. 13468/68. Heading F1A. In a radial cylinder pump of the type in which the pistons are held in contact with the inner eccentric member by means of a ring which engages at least one pair of diametrically pistons, the opposed ring has axially directed pins which engage an annular groove or bores in the piston wall. The pins may be formed by bending from a punched out ring or they may be separate and attached to the ring, by welding, etc. Specification 1, 051, 603 is referred to.
Patent GB-566997-A (GB)
Title: Improvements in shears
IPC: B26B13/28
Filed: 1943-08-19
Abstract: 566,997. Shear - blades. PACKERS SUPPLY CO., Ltd. (General Strapping Corporation). Aug. 19, 1943, No. 13560. [Class 83 (iv)] [Also in Group XV] In a shearing - apparatus, particularly one forming part of a bale-tie straining-device, the fixed blade is adjustable about an axis parallel to the path of movement of the movable blade to adjust its edge relatively to that of the movable blade. The movable blade is carried by a reciprocating head 5, and the fixed blade is in the form of an extension 11 of a cylindrical block 16 angularly adjustable in a seating in the frame 1 so that the cutting edge, which is formed by the upper edge 13 of a groove 14 cut in the side of the extension 11, is adjustable towards or away from the edge of the blade 8. The adjustment and locking of the fixed blade is effected by screws 19, 20 engaging abutments, or, as shown, engaging the ends of a bar 17 fixed to the extension. A ridge 15 of arcuate section may be formed on the extension 11 so that the cut progresses from the centre of the blades. downwards. The blade edges may be of arcuate form in plan, as shown in Fig. 4. Specifications 471,634 and 514,625 are referred to.
Patent GB-1167662-A (GB)
Title: Improvements in or relating to Winches
Inventor: PURDY WILLIAM CHARLES
IPC: B66D1/74
Filed: 1968-03-20
Abstract: 1,167,662. Winches. THOMPSON BROS. (ENGS.) Ltd. 14 Aug., 1968 [20 March, 1968], No. 13578/68. Addition to 1,144,818. Heading B8B. [Also in Division H2] The winch of the parent Specification 1,144,818 is modified in that the multiple groove pulley wheels 11 are driven through an epicyclic gear train adapted to provide fast and slow winding-in speeds and a paying-out speed. This arrangement facilitates the stringing of overhead power lines whereby the trenching beam and ground-engaging stabilizing jacks of the parent Specification are omitted and pivotable ground-engaging sprags 42 and a jockey wheel 40 are mounted on the trailer 1. The epicyclic gear unit comprises a cylindrical casing 51 rotatably mounted on a pair of coaxial torque sleeves, and rotatably driven from engine 18 and clutch 19 through chains 45, 49 and sprockets on the clutch output, on a layshaft 47 and on the easing 51. The casing mounts at least one planetary shaft rotatably supporting three axially coupled gears, the centre one of which meshes with a sun-wheel rigid with an output shaft rotatable within the torque sleeves. Each of the other two planetary gears meshes with a gear on opposite torque sleeves, the ratio between the gear sizes being chosen so that depending on which sleeve is held stationary a reduced forward or reverse drive from the wheels 11 is obtained. With one sleeve clutched to the casing 51, the unit locks and gives a direct drive (i.e. fast winding in speed).
Patent GB-696485-A (GB)
Title: Improvements in collet chucks
IPC: B23B31/40
Filed: 1950-06-01
Abstract: 696,485. Chucks. BAKER, R. J. Sept. 3, 1951 [June 1, 1950], No. 13770/50. Class 83 (iii). A collet chuck is operated by a nut 8 screwed on a collet C and secured to, or integral with, a ring 7 which is rotated either by bevel pinions 10 formed with recesses for a key, by a key with bevel teeth on its end or by a worm drive: In a modification, Fig. 2, the nut 8 is used only for initial adjustment and the chuck is operated by a yoke H which controls a camsleeve 12 acting on levers 17 engaging the face of the nut 8; the latter is splined in the ring 7 and may be urged forwardly by springs or by a yieldable rubber block. The removable sleeve 11 may alternatively be as shown in Fig. 4 and may have screw threads to take a slotted extractor nut 20. A stepped externallygripping collet, similar to the internallygripping collect of Fig. 4, is also described. In another modification, the sleeve 11 is extended forwardly to form a split mandrel which is expanded by a coned draw-rod connected to a member in screwed engagement with the ring 7..
Patent GB-274822-A (GB)
IPC: G10K9/04
Filed: 1927-05-23
Abstract: 274,822. Cunningham, A. July 21, 1926, [Convention date]. Horns, construction of.-In a horn of the kind in which sound is produced in a fluid stream by an interrupting diaphragm 1 which effects the intermittent escape of nuid from a pressure chamber 20 into a relief chamber 21, the width cf the pressure chamber is a whole multiple of that of the relief chamber or vice versa so that the line of contact of the tube 22 with the diaphragm is a node of the latter. The diaphragm is not clamped at its periphery but rests against a ring 4 screwed on to the casing 2. The casing 2, inner tube 22, and horn mouth 3 may be cast integrally.
Patent GB-744599-A (GB)
Title: Stainless steel articles for use at high temperatures
Inventor: JENNINGS PAUL A
IPC: C22C38/58
Filed: 1952-05-30
Abstract: Internal combustion engine valves or valve parts, such as stems, heads, springs, casings or coatings, are made of an austentic alloy having the following composition: .C.0,08-1,5.per cent .Cr.12-30.per cent .Ni.2-35.per cent .Mn.3-12.per cent .N.0,06-0,6.per cent .Si not exceeding.0,45.per cent .Fe the remainder... Co up to 5 per cent may be substituted for part of one or more of the elements C, Ni and Mn, which are however present at least to the extent of the minimum values stated above.  S up to 0,2 per cent and Mo, Ti, Cb, W, V, Cu, Ta, Al and Zr up to 2 per cent each may also be present in the alloy. The Specification refers to the heat treatment of particular alloys according to the invention and also of alloys having a lower nitrogen content by heating to 2150 DEG F. for 1 hour, water quenching and ageing at 1350-1400 DEG F.
Patent GB-725038-A (GB)
Title: Improvements in or relating to tobacco desuckering composition
IPC: A24B15/32
Filed: 1953-05-18
Abstract: An emulsifiable tobacco desuckering composition, adapted to impart controlled emulsion stability characteristics whereby an aqueous emulsion thereof exhibits about 10-85, preferably 40-70, volume per cent water separation on standing for one hour, comprises in combination 90 to 99.8 volume per cent of a petroleum mineral white oil having a specific gravity from 0.800 to 0.885, a boiling point in the range from 550 DEG -1,000 DEG F., and a viscosity of from 80-370 SSU at 100 DEG F, and 0.2 to 10 volume per cent of an oil-soluble non-ionic or anionic synthetic emulsifier. The white oils are mainly paraffinic and/or naphthenic, aromatic-free oils similar to those prepared by sulphuric acid treatment of petroleum distillate.  The preferred non-ionic emulsifiers are ethylene oxide condensation products and specified emulsifiers are "Antarox" A401, (R.T.M.) an alkyl aryl polyoxyethylene glycol ether; "Atlas" G2854, (R.T.M.) a polyoxyethylene sorbitol tetraoleate; Agent 140H an alkyl aryl polyoxyethylene glycol ether; "Span" 85 (R.T.M.) Sorbitan trioleate; "Triton" X45, (R.T.M.) an alkylated aryl polyether alcohol; Nonisol 210 a polyethylene glycol oleate; and petroleum sulphonate.  Before use the composition is emulsified with enough water to give a concentrate to water ratio by volume in the range of 1/2 to 2/1 . Aqueous emulsions containing 50 per cent oil and 0.2-1.0 per cent emulsifier are especially effective.
Patent GB-592780-A (GB)
Title: Improvements in and relating to light filters for aircraft windscreens
IPC: G09B9/16
Filed: 1945-06-02
Abstract: 592,780. Windows. BOULTON PAUL AIRCRAFT, Ltd., NORTH, J. D., and CLARK, B. F. June 2, 1945, No. 13893. [Class 20(iii)] [Also in Groups XXXII and XXXIII] In an arrangement of retractable colour filters for an aircraft windscreen (see also Groups XXXII and XXXIII), the filters 3, 4 for the port panels 1, 2 are slidable in runways 5 fitted to the windscreen frame 6 and extending below the top of the fuselage 7. The filters are coupled together at their upper edges by a bridge-piece 8 connected to the movable part of a pneumatic ram 9 mounted at 10 on the aircraft structure, their lower edges being supported by members 18a secured to the movable part of the ram. A spring 11 acting on the ram piston 12 normally holds the filters in the stowed position shown in dotted lines. The ram is operated to project the filters by compressed air from an air'bottle (not shown) under the control of a push-button valve on the instrument panel, and the filters are retained in the projected position by a spring- loaded latch 16 of the push-button type. A similar arrangement is provided for the filters for the starboard panels.
Patent GB-257335-A (GB)
Title: Improvements in or relating to percussion fuzes for projectiles
IPC: F42C15/184
Filed: 1925-05-27
Abstract: 257,335. Dawson, Sir A. T., and Buckham, Sir G. T. May 27, 1925. Projectile fuzes. - Relates to direct-action percussion fuzes in which the detonator is carried in a safe position in a movable holder locked bv the direct-action striker until discharge, when the striker moves forward and releases the detonator holder which then brings the detonator opposite the firing pin of the striker and in line with the flash passage. According to the invention, the detonator holder is moved to the armed position by a spring which may be helped by centrifugal force, instead of by centrifugal force solely as heretofore. In the form shown in Fig. 1, centrifugal arms D move out during flight and release the striker C, which is then moved forward by a spring c<1>, withdrawing the firing pin c from the detonator holder B. This releases the detonator holder, which is then moved aside by a spring B<1> until the detonator b<x> is opposite the firing pin c and in line with the flash passage a The head of the striker may be perforated to reduce air resistance. A port b<2x> may be formed in the detonator holder to prevent air cushioning. The fuze is mounted in a body A with screwed sleeves A<1>, E. In modifications, the striker is moved forward by centrifugal arms arranged like a centrifugal governor, or is released by sliding centrifugal bolts normally locked by a spirally wound tape secured by a detachable cover, and the detonator holder is movable transversely about an eccentric pivot or is rotatably mounted transversely to the fuze.
Patent GB-534391-A (GB)
Title: Improvements in or relating to machines for working fat and similar substances
IPC: A23D9/02
Filed: 1940-09-06
Abstract: 534,391. "Working" fat. DOUGLAS & SONS, Ltd.. W., and NICOL, J. S. Sept. 6, 1940, No. 139&1. [Class 91] In "working" fat and similar substances by 'forcing it through spaces between and grooves and holes in concentric cylinders within a casing, the outer cylinder is rotated and is provided with projections or other elements to beat the fat while between this cylinder and the casing. For example, edible fat is pumped through the inlet 11 of a stationary casing 10, is beaten by preferably diamond-shaped projections 16, 17 on a cylinder 13 rotated by a shaft 14, forced through apertures 15 into preferably serrated-edged grooves 19 in a stationary cylinder 18, thence between the cylinders 13, 18 and through grooves 20 and apertures 21 to the interior of cylinder 18, apertures 23, and the outlet 12. The cylinders 13, 18 are slightly tapered; more than two may be used.
Patent GB-1340747-A (GB)
Title: Pneumatic piston device such as impact tools
IPC: B25C1/04
Filed: 1971-05-10
Abstract: 1340747 Fastener driving tools SIGNODE CORP 10 May 1971 [11 May 1970] 14029/71 Heading B4C A pneumatically operable tool for driving fasteners, e.g. staples (as shown), nails or pins comprises a compressed air reservoir 92, a chamber 80 to which air from the reservoir can pass via port 116 to drive piston 28 on a working stroke, and a valve assembly 22 for controlling supply of air to and exhaust of air from the chamber. The valve assembly, which may be removed from the tool after removal of cap 16, gasket 72 and pin 109, comprises a sleeve 104, a first member 114 movable in the sleeve between a first or normal position in which the port 116 is blocked and the chamber communicates with a vent passage 112 via bore 160 and ports 172, and a second position (as shown) in which the port is open. In the second position a sealing ring 162 on a second member 134 of the valve assembly engages a seat 164 to block communication between the bore 160 and the vent passage. The first member is maintained in its first position by pressure air acting on its lower surface 120, communication between the reservoir and the surface 120 being by way of duct 124, ports 136, bore 138 and a passage between ball 140 and upper seat 142. Upon actuation of trigger 152 the ball 140 is raised against bias of spring 170 to abut against the upper seat 142 thus terminating communication between the reservoir and the surface 120 and communicating the surface with atmosphere via passage between the ball and lower seat 156. The first member will thus be moved to the illustrated position against bias of spring 121. When the port 116 is opened pressure air can pass to chamber 80 and therefrom via a one way valve formed by annular ring 94 directly into annular chamber 50, and chamber 54. When the trigger is released, the first member 114 returns to its first position and thus the space above the piston is vented. Pressure air in chambers 50, 54 will then return the piston to its initial position. When the initial position is attained, i.e. when annular ring 62 is positioned above shoulder 69, air in the chamber 54 can be vented via bores 68, 66 and past the annular ring 62 which is expanded by the air.
Patent GB-567454-A (GB)
Title: Improvements in and relating to hair curlers
IPC: A45D2/32
Filed: 1943-08-27
Abstract: 567,454. Hair curlers. SARTORY, P., and SUPERMA, Ltd. Aug. 27, 1943, No. 14052. [Class 131] A friction clutch for preventing the unwinding of hair curlers comprises a tubular metal sleeve 1 the bore of which is of less diameter at one end where the sleeve is split longitudinally for a part of its length to form two or more clutch jaws 4, 4a. One or more circumferential grooves 5 which may be continuous or interrupted are provided at the root ends of the jaws to increase their resilience. Fig. 10 shows the clutch applied to a curler of the pointwinding type wherein after the hair tress has been wound on the curler a it is placed in the upright bearings d, d<1> of a known clamp e. Rotation of the curler causes the windings of the tress to be tensioned while the jaws of the friction clutch fitted on the end spindle bl prevents subsequent unwinding. Fig. 12 shows the clutch applied to a curler g of the rootwinding type in which after the rood end i of the tress has been secured in the rotatable end of the curler the tress is wound on the curler. Tensioning of the tress is accomplished by rotation of the end i relative to the clutch 1a.
Patent GB-601947-A (GB)
Title: Key-sender for telecommunication systems
IPC: H04M1/23
Filed: 1945-03-02
Abstract: 601,947. Automatic exchange systems. STANDARD TELEPHONES & CABLES, Ltd. (International Standard Electric Corporation). March 2, 1945, No. 14066/46. Divided out of 601,906. [A Specification was laid open to inspection under Sect. 91 of the Acts, May 9, 1946.] [Class 40 (iv)] A key sender for a telecommunication system comprises a plurality of sliding members which actuate contacts and some of which are operated in succession by cam means on keys. When one of a number of keys 1 is depressed, a projecting cam surface 6 engages transversely extending pins attached to sliding bars B1 ... B5, so that selected bars are thrust to the right to actuate individual contacts C1 ... C5, after which they are returned by the contact spring pressure. The depressed key is subsequently raised by compression spring 4 and during its upward movement the cam surface 6 thrusts the bars B towards the left against a common returning spring, the contacts C remaining unmoved. During the initial downward movement of a key, the inclined face 14 thrusts a common slide 13 towards the left to actuate contacts 11 for performing any local switching necessary during transmission, these contacts remaining operated until the key is released. The operating pins on the bars B may be bent so that the parts engaged by the key cam are displaced vertically, thereby giving evenly spaced operation of the bars. Specification 601,906 is referred to.
Patent GB-1124424-A (GB)
Title: Improvements in submarine pipelines
IPC: F16L1/26
Filed: 1966-03-30
Abstract: 1,124,424. Welding by fusion. J. G. COULTRUP. 23 March, 1967 [30 March, 1966], No. 14133/66. Heading B3R. [Also in Division F2] Lengths of pipe 13, 14 of a submarine pipeline are sealed in a surrounding open-bottomed chamber 5 anchored on or adjacent to the sea bed and containing inert gas at superatmospheric pressures sufficient to support the hydrostatic pressure of the water, the ends of the pipes being arc welded by operators wearing closed circuit breathing apparatus. The inert gas may be nitrogen, carbon dioxide, argon or helium and fed to the chamber from a boat via a line 12 carrying electric cables and gas conduits.
Patent GB-698087-A (GB)
Title: Improvements in or relating to scaffolding
Inventor: HAWES ALBERT HENRY
IPC: E04G7/30
Filed: 1950-06-06
Abstract: 698,087. Scaffolding KWIKFORM, Ltd. June 1, 1951 [June 6, 1950], No. 14135/50. Addition to 642,386. Class 20(ii) The U-shaped bracket of the ledger clamping device in the H- frame unit described in the parent Specification is replaced by a straight bar 12, Fig. 1, with seatings 15. 18, or by a triangular plate 12, Fig. 2, with an opening 22' and seating 26, the seating 15 on the screw clamp having lugs 27 engaging slidably with opposite faces of the plate 12. Specification 642,367 is referred to.
Patent GB-272033-A (GB)
Title: Improvements relating to walls for buildings, or other structures
IPC: E04B2/86
Filed: 1926-06-04
Abstract: 272,033. Mullenger, A. R. June 4, 1926. Facing slabs.-Thin facing slabs 1 are provided with longitudinal ribs 1<a> reinforced by bars 2 which are engaged by metal ties 4, Fig. 1, or are connected thereto by wire staples or eyes, Fig. 4. The slabs may be made of concrete consisting of Portland stone, asbestos, and cement.
Patent GB-932710-A (GB)
Title: Anode assembly for cathodic protection systems
IPC: C23F13/02
Filed: 1960-04-22
Abstract: 932,710. Anodes for preventing corrosion. ENGELHARD INDUSTRIES Inc. April 22, 1960 [April 28, 1959], No. 14233/60. Class 123 (1). An anode assembly for a ship's impressed current cathodic protection system comprises a mushroom-shaped electrically insulating support 8, the stem 12 of which, sealed by a packing 34 compressed between a jam nut 32 and a threaded tubular sleeve 30 welded into a bore through the ship's hull 6, has embedded therein an electrical connector pin 14 having a head 24 which is welded to the base of a cup-shaped recess 20 in a circular, corrosion-resistant, anode disc 16 made e.g. of platinum or alloys thereof. An inturned lip 18 on the edge of the disc is embedded in the support 8, the recess 20 being provided with perforations 25 to facilitate a tight bond with the support 8 which is made of a plastics material such as polytetrafluorethylene. The pin 14 fits into a socket 28 connected to the positive terminal of a direct-current power supply 26. Larger anode discs may incorporate several recesses 20.
Patent GB-847066-A (GB)
Title: Process for the isomerization of butylene-1 to butylene-2
IPC: C07C5/25
Filed: 1959-04-27
Abstract: Butylene-2 is formed by the isomerisation of butylene-1 over a heteropoly acid at 50-300 DEG C. and a space velocity of 1-40 vol./vol./hr. Butylene-2 is preferably absent from the feed but n- or iso-butane and isobutylene may be present.  Isobutylene may be polymerised to dimer and trimer.  A product obtained from treating a mixture of isobutane, isobutylene and butylene-1 may be used in an alkylation process to produce high octane gasoline. Liquid or gaseous phase operation may be used.  Water is preferably kept below a concentration of 25 p.p.m.  Specified heteropoly acids are phosphotungstic, phosphomolybdic, phosphomolybdic-tungstic, phosphovanadic, silicotungstic, silicomolybdic, arsenomolybdic and borotungstic acid.  They are preferably supported on silica gel, natural or synthetic alumina, mixed silica-alumina gels, aluminium silicate or pumice, the amount of acid being 0,5-50% of the total and the alkali content (including ammonium) less than 1 milli-equivalent per 100 grams.  Specification 847,065 is referred to.