baber/WOPTO huggingface dataset:
Patent GB-782445-A (GB)
Title: Improvements in conveyor or power transmission belt construction
IPC: D03D3/00
Filed: 1955-02-05
Abstract: 782,445. Laminated materials. GREENGATE & IRWELL RUBBER CO., Ltd., and MARSHALL, D. D. Jan. 26, 1956 [Feb. 5, 1955], No. 3481/55. Class 140. In fire-resisting conveyer, elevator or power transmission belting of the kind consisting of a number of superposed plies of woven textile fabric and a flexible composition, the fabric is made from cotton or from staple or continuous filaments of rayon, glass or other synthetic filaments, each of the plies having orthodox weft threads and three or more warp threads woven as one. The fabric which is of an open character, is impregnated with the composition in paste form by dipping, spreading, or calendering, and a number of superposed plies fused together under heat and pressure. A cover of the flexible composition may surround the assembly of impregnated plies. The flexible compositions may consist of natural rubber, neoprene, butadieneacrylonitrile synthetic rubber or mixtures of these with polyvinyl chloride, polyvinyl chloride alone or a copolymer of vinyl chloride with vinyl acetate and/or vinylidene chloride with a suitable mixture of plasticizers, e.g. a mixture of tricresyl phosphate and dioctyl phthalate or dioctyl sebacate.
Patent GB-541990-A (GB)
Title: Improvements in or relating to gun-turrets
IPC: F41A23/00
Filed: 1936-02-05
Abstract: 541,990. Gun mountings. BRISTOL AEROPLANE CO., Ltd., and FRISE, L. G. Feb. 5, 1936, No. 3539. [Class 92 (i)] Relates to aircraft gun turrets in which the gun 16 and gunner's seat 23 are mounted on a pillar 12 offset from the axis of rotation of the turret. According to the invention, the gun and seat are synchronously moved in elevation by a hydraulic jack 17 mounted on a part such as the pillar, which is rotatable with the turret. As shown, the piston rod 18 of a jack mounted on the pillar is connected by a lever 19 and link 20 to a seat arm 21 pivoted to the pillar, this arm being connected by a link 22 with the rear of a gun 16 supported from the pillar by a fork 25. The gun is thus elevated in a vertical slot in a hood 14 rotatable with the pillar 12 when the platform 10 of the turret is trained. The gun may be supported for differential training movement on a shaft 15 rotating within the pillar. Specification 439,739 is referred to.
Patent GB-328917-A (GB)
Title: Improvements in direction indicators, signalling apparatus, advertising or display signs and the like
IPC: B60Q1/44
Filed: 1929-02-02
Abstract: 328,917. Seddon, G. A., and Seddon, E. S. Feb. 2, 1929. Road-traffic signals on vehicles. -Relates to signalling devices of the type having a closed casing a with a stencil front b and a fixed substantially vertical lighting surface c to the rear of the stencil, and consists in providing no glass .backing for the stencil b and in setting back the lighting surface c so as not to reflect ordinary external light. A usual distance to set back the lighting surface will be equal to about twice the width of the widest stencil opening. In another form the reflecting surface is formed by the white-enamelled back of the casing. The lamp a may throw its light on the front or back of the translucent screen c. The stencil may be backed with a sheet of black perforated material. In a form suitable for charabancs, the casing is formed in two parts, the front part carrying the stencil and spaced reflector being secured by bolts to the rear part in which the light is housed.
Patent GB-447108-A (GB)
Title: Manufacture of anthraquinone derivatives
IPC: C09B1/28
Filed: 1934-08-03
Abstract: 1.4 - Diaminoanthraquinones containing different aliphatically combined residues in the amino groups and which may contain in the other benzene nucleus hydroxy, alkoxy and/or amino groups are prepared by reacting a leuco compound of an anthraquinone of the general formula <FORM:0447108/IV/1> (wherein R is an aliphatically combined radicle, X is a hydroxy or amino group, and wherein the nucleus Z may contain hydroxy, alkoxy and/or amino groups) with a primary amine of the aliphatic, cycloaliphatic or aliphaticaromatic series of which the residue is not identical with the residue R already present, or by reacting the above anthraquinone derivative with a primary amine as above defined in presence of a substance having a reducing action (zinc dust or alkali metal hydrosulphites are suitable). Suitable starting materials are 1-monoalkylamino- or -aralkylamino- or -cyclohexylamino - 4 - hydroxy- or -aminoanthraquinones and their leuco compounds.  In an example, leuco 1 - methylamino - 4 - hydroxyanthraquinone is condensed with ethanolamine.  A sample has been furnished under Sect. 2 (5) of 1 - benzylamino - 4 - cyclohexylaminoanthraquinone prepared by condensing 1-amino-4-cyclohexylaminoanthraquinone with benzylamine in presence of sodium hydrosulphite.  The products mostly dye cellulose esters and ethers and are of use for colouring artificial masses, hydrocarbons such as benzene or petroleum, lacquers, oils, waxes and paraffin waxes. Specifications 434,429, 434,906, 447,037, 447,088, and 447,107 are referred to.ALSO:1.4-Diaminoanthraquinones containing different aliphatically combined residues in the amino groups and which may contain in the other benzene nucleus hydroxy, alkoxy and/or amino groups, are of use for colouring lacquers, oils, waxes and paraffin waxes.
Patent GB-588352-A (GB)
Title: Improvements in or relating to land mines for military purposes
IPC: F42B23/16
Filed: 1945-02-13
Abstract: 588,352. Land mines. DELALANDE, P. J. M. R. Feb. 13, 1945, No. 3597. [Classes 9 (ii) and 92 (ii)] A land mine comprises a casing 1 containing an explosive projectile 11, an external flash tube 9 adjacent and substantially parallel to the casing, a combustible charge 10 which when ignited generates gas to eject the projectile from the casing, a detonator 17 in the flash tube and means at the upper or outer end of the flash tube for exploding the detonator. In the construction shown, the casing has a cover 3 which is held in place by a a wire catch 5, a water-tight gasket 4 being disposed between the cover and container. The casing has a strong base 2 having a flange which is engaged by a plate 7, and upon this plate is mounted a boss 8 which engages by a screw-thread the nose of a projectile after its fuze has been removed. The boss 8 supports booster-burning powder 21 and a detonator 20. The means for exploding detonator 17 comprises a firing pin 16 which is normally held retracted against spring pressure by a draw bolt 14 passing through a head 13 and also by a safety latch 15 similarly -mounted. The head 13 is mounted to swivel about a vertical axis, and to the draw bolt is secured a number of wires 19 whose other ends are anchored, such as at 24In use, the mine is pressed into the ground by means of a plate 23 and latch 15 is removed. A pull on any of wires 19 will then first rotate the head 13 and subsequently withdraw the bolt 14, thus freeing the pin 16 to explode the detonator 17. This in turn will ignite the charge 10, the gases from which will eject the projectile from the casing, the detonator 20 and booster 21. serving to explode the main charge of the projectile when it is a few feet from the ground. In a modification, Fig. 3 (not shown), the firing pin is adapted to be actuated when vertical pressure is applied to,a device projecting above the ground in place of the head 13.
Patent GB-493815-A (GB)
Title: Improvements in and relating to folding and sliding doors
IPC: E05B65/08
Filed: 1938-02-04
Abstract: 493,815. Door-operating appliances ; fastenings. EDUCATIONAL SUPPLY ASSOCIATION, Ltd., and LEONARD, J. W. Feb. 4, 1938, No. 3618. [Classes 44 and 65 (i)] In a folding and sliding door of the type described in Specifications 5828/13, [Class 20 (iii)], and 462,868, having a latch or latch stop on the end sliding upright and a coacting latch stop or latch on the adjacent sliding upright or door jamb, the latch is adapted to be manually unsecured but automatically and positively reset to the securing position by the initial opening of the door, the motor circuits having switches which are not opened by the resetting of the latch but which are opened on the re-engagement of the latch when the door is closed. A latch 9 pivoted at 10 on one end sliding upright 7 engages a latch stop 11 on the other end sliding upright when the door is closed. Before opening the doors the latch must be released by a lever mechanism acting through a rod 21, the movement of the latch depressing a switch arm 19 on one door and allowing a switch arm 23 on the other door to rise under the influence of a spring, thus closing the switches and enabling the motors to be started. As the doors separate a cam surface 27 on the latch encounters a projection 26 and the latch is positively returned to its latching position. The switch controlled by the arm 23 is opened when the arm is depressed by the latch and closed when the arm rises on removal of the latch. The switch controlled by the arm 19, however, is only operated (through a ratchet gear, for example) by downward movements of the arm 19, successive downward movements alternately opening and closing the switch, so that when the latch is returned to its latching position during the initial opening of the door and the arm 19 follows this movement, the switch remains closed. When the doors approach the closed position, the latch 9 rides over the latch stop 11 and depresses the arm 19, so cutting off current from the motor mounted on the door carrying the latch. Immediately afterwards, the latch 9 drops into engagement with the latch stop 11 and depresses the arm 23, so cutting off current from the other motor. The rod 21 has a pin-and-slot connection 14, 13 with the latch so that the manual actuating mechanism is not affected by the automatic engagement of the latch.
Patent GB-664437-A (GB)
Title: Improvements in or relating to a hydraulic control mechanism for brakes for hoists, winches and the like
IPC: B66D5/26
Filed: 1949-02-10
Abstract: 664,437. Hydraulic brakes. NORDBERG MANUFACTURING CO. Feb. 10, 1949 [Feb. 24, 1948], No. 3658/49. Class 103 (i). An hydraulic control mechanism for a winch brake includes a brake operating lever 9 which is actuated by hydraulic power means 28 so as to operate the brake, a valve control means for said power means including a casing 30 having inlet, outlet and relief passages, a first valve means 46, 47 operable between two positions, in one position to close said inlet from said outlet and to open said outlet to said relief passage and in the second position to open said inlet to said outlet and to close said outlet from said relief passage, and a second valve means 51, 52 interposed between said inlet and outlet passages and being operatively connected to said brake operating lever and controlling and limiting movement of the latter by restricting the flow of pressure liquid through the said second valve means during the closing movement of the latter. As shown in Fig. 1, the winch brake drum 4 is released by hydraulic cylinder 28, the movement being transmitted by piston 27 through piston crosshead 22, link 21, brake operating lever 9 pivoted at 8 to pivoted link 11 and to lug 7 of brake 5, and links 17, 19 and 13, 15 to brakes 5 and 6. Weight 25 attached by rod to the piston 27 applies the brake when the pressure in the cylinder is released. Figs. 2 and 3 show the brake control device 30. Pressure fluid for cylinder 28 enters the device 30 through inlet 37 and on its way to outlet 43 to enter cylinder 28 therefrom its passage is governed by valves V<SP>1</SP> and V<SP>2</SP> (45 is exhaust). Valve V<SP>1</SP> includes valve members or cylinders 46 and 47 and is operated by solenoid 32. Valve V<SP>2</SP> includes valve cylinders 51 and 52 and is operated by brake operating lever 9 through the linkage 53, 56, 57, 58, the points 54 and 60 being fixed. When the brake is on, brake operating lever 9 is in the down position; valve V<SP>1</SP> is down and valve V<SP>2</SP> is up (Fig. 2); so that fluid from cylinder 28 passes via path 43, 44 to exhaust 45 and valve cylinder 46 blocks fluid inlet 37. If now solenoid 32 is energized, valve V<SP>1</SP> is moved to the up position so that valve cylinder 47 blocks the passage of fluid to exhaust and valve cylinder 46 moved upwards to free fluid inlet 37 to allow fluid to pass (Fig. 3) via 39, 40, 42, 41 to cylinder 28 which is therefore raised. This in turn raises lever 9 and through linkage 58, 57, 56 lowers valve V<SP>2</SP>. Valve cylinder 51 on the latter closes opening 42 to shut off the fluid supply from 37 and in so doing controls the final movement of piston 27 and therefore of the brake release. Rod 61 permits manual control when desired.
Patent GB-748132-A (GB)
Title: Improvements in or relating to ion trap magnet assemblies
IPC: H01J29/84
Filed: 1953-02-10
Abstract: 748,132. Magnets. COLE, Ltd., E. K., NEW, A. W. W., and LEVI, J. E. Feb. 10, 1954 [Feb. 10, 1953], No. 3670/53. Class 35. [Also in Group XL (a)] In an ion trap magnet assembly of approximately horse-shoe shape comprising a small permanent magnet A, Figs. 1, 4, from which extend curved, magnetic strips B1, B2 serving as pole pieces and surrounding a substantial portion of the tube neck circumference, the pole pieces B1, B2 are sufficiently flexible to allow of springing the assembly on to the tube neck and each pole piece has a resilient sleeve M1 M2, the sleeves providing sufficient friction to retain the assembly in an adjusted position on the tube neck. In the form shown the magnet A in the form of a rectangular prism has mild steel or soft iron pole pieces B1, B2 clamped thereto by two brass brackets C. The brackets have lugs D which are deformed into the position shown during assembly, and the pole pieces have shoulders E to prevent them from slipping relatively to the magnet. The pole pieces B1, B2 have polyvinyl chloride sleeves M1, M2 which are of different colours to indicate the polarities. When the parts have been assembled the device is magnetized by placing the pole pieces of suitable magnetizing apparatus against parts J. The cathode ray tube has a bent ion trap gun. Prior art ion trap magnet assemblies of horse-shoe shape with (a) a strip of resin-impregnated cardboard riveted to the pole pieces, the ends of the strip being secured together by a bolt to cause the assembly to grip the tube neck and the strip lying between the pole pieces and the tube neck and (b) a V-shaped strip of non-magnetic metal secured at its apex to the magnet so that the tube neck is wedged between the V strip and the free ends of the pole pieces, are referred to.
Patent GB-284982-A (GB)
Title: Improvements in and relating to filters
IPC: B01D29/00
Filed: 1928-02-06
Abstract: 284,982. A. C. Spark Plug Co., (Assignees of McKinley, C. W.). Feb. 5, 1927, [Convention date]. Filters having sheet filtering- materials.-A filter bag 5 is formed by taking a sheet of fabric, folding at the bottom 6 and stitching the folds up the edges 7 and along the top 8, but leaving a hole 9. The folds are brought together by parallel rows 11 of stitches which do not quite reach to the centre. The folds are kept apart by loops 18 of cord or other flexible material inserted as indicated in Fig. 1. An inlet pipe 10 is inserted through the aperture 9, the sides of the bag are then folded together and wound round to form two interleaved spirals. The element so formed may be inserted in a cage 14 of wire cloth having caps 15, 16 held together by straps 17. The inlet pipe 10 may be fitted with a perforated extension 10<1>. The filter may be used for treating the lubricaitng oil of an internal-combustion engine, the oil being pumped in through the pipe 10 and the filtered liquid collected by a vessel within which the element is placed.
Patent GB-1017875-A (GB)
Title: Cutting devices
IPC: B65B13/34
Filed: 1962-08-22
Abstract: 1,017,875. Binding machine. CARISTRAP INTERNATIONAL Ltd. Aug. 22, 1962 [Dec. 6, 1961], No. 3753/65. Divided out of 1,017,873. Heading B8C. The subject matter relates to the cutting device disclosed in the main Specification.
Patent GB-739420-A (GB)
Title: Improvements in the construction of concrete walls
Inventor: RICHARDSON JOHN OWEN CAVENAGH
IPC: E04B1/64
Filed: 1954-02-09
Abstract: 739,420. Walls. WOOLAWAY CONSTRUCTIONS, Ltd. July 28, 1954 [Feb. 9, 1954], No. 3776/54. Class 20(4). In a cavity wall of slabs or panels 3, 4, spaced apart by the upstanding rib 2 of a foundation unit 1 seated on a concrete block &c. 8 a course of damp-proof material 13 is interposed between the block and unit and is carried up between the unit and a vertical edge of a floor 10. The course may' be of material bent to L-form or of two flat lengths or may comprise a waterproof 'composition. The floor foundation 9 may be recessed in line with the wall to provide a pocket for the insertion of a mastic seal 15. The top surface of the rib slopes downwardly to the outer panel 3 and adjacent foundation units may be slightly spaced to form drainage channels. The horizontal faces and preferably the inclined surface of the units are below floor level. Specification 595,849 is referred to.
Patent GB-1184775-A (GB)
Title: A Fuel Cell Provided with Means for Regulating the Electrolyte Concentration of the Cell
IPC: H01M8/06
Filed: 1968-01-24
Abstract: 1,184,775. Controlling fuel cell electrolyte concentration. COMPAGNIE GENERALE D'ELECTRICITE. 24 Jan., 1968 [17 Feb., 1967], No. 3835/68. Heading B1X. [Also in Division H1] In a fuel cell system the concentration of the electrolyte is held between upper and lower values C 2  and C 1 , between which the cell functions normally, the excess of diluted electrolyte is introduced into a chamber calibrated at 3 levels, wherein a siphon is primed when the liquid reaches the upper level and withdraws liquid until the lower level is reached, when it is unprimed, and electrolyte at concentration C 3 , greater than C 1 , is then supplied until the level of liquid reaches the mean level, the 3 levels being such that the upper level is reached when the electrolyte concentration in the cell has fallen to C 1 , when the mean level corresponded to concentration C 2 , and the volume between the lower and mean levels equals the volume of electrolyte at concentration C 3  required to bring the electrolyte concentration in the cell up from C 1  to C 2 . In the Figure electrolyte is cycled from the fuel cell 1 via conduit 2 to a constant level reservoir 3 and then through filter 10 to chamber 4 and back to the fuel cell by pump 5. When the water produced by the cell has raised the electrolyte level from b (C 2 ) to a (C 1 ), siphon 12 is primed and electrolyte is siphoned into vessel 11 until level c is reached. Concentrated electrolyte (C 3 ) now runs from reservoir 13 via conduit 15 until level b is reached, when the mouth of conduit 14 is blocked and flow ceases, the overall concentration now being C 2 . The cock 8 is operated when the cell is out of use to bring by-pass conduit 7 into communication with conduit 6.
Patent GB-524751-A (GB)
Title: Improvements in blind stitch sewing machines
IPC: D05B1/24
Filed: 1939-02-06
Abstract: 524,751. Sewing-machines; sewing. BOIGON, S. Feb. 6, 1939, No. 3875. [Class 112] In a blind-stitching machine comprising a curved needle 15, looper 16 and feed-dog 17, particularly for producing a permanent crease in garment fabrics by forming a blind-stitch seam as in Fig. 3 across the crease F in the fabric, the presser-foot 13 has an opening 19 below which is a fixed member 29, this member projecting into the opening 19 and co-operating with a member 32 to form two folds for engagement by the needle. In the arrangement shown, the member 29 is grooved and the member 32 is a resilient finger secured to the presser-foot 13 and engaging the groove in the member 29; the bending of the work is begun by a slot 20A in the work-plate 9, into which the work enters as it is fed towards the member 29. The presserfoot 13 is formed with needle grooves 20. The work is held against the underside of the presser-foot by a pair of abutting members 22 pivoted at 23 on arms 24 which are pivotally mounted at 25 and biased upwardly by springs 27; these members have fingers extending at the sides of the member 29 and a recess 28 in line with the member 29 to accommodate the stitched crease in the work. A finger 36 pivoted on a bracket 38 and pressed downwards by a spring 40, engages the work over the left-hand edge of the member 29 to prevent the needle from pushing it away.
Patent GB-1165831-A (GB)
Title: Process for the Production of Isocyanates and Carbamyl Chlorides
Inventor: DODMAN DAVID
IPC: C07C263/10
Filed: 1967-01-26
Abstract: 1,165,831. Preparation of organic isocyanates and carbamyl chlorides. IMPERIAL CHEMICAL INDUSTRIES Ltd. 5 Jan., 1968 [26 Jan, 1967], No. 3961/67. Heading C2C. A process for the manufacture of organic isocyanates and carbamyl chlorides comprises reacting primary or secondary amines with phosgene in the vapour phase in a reactor provided with means for agitation of the vapours as they pass through the reactor, the process including a degassing stage when used for the manufacture of an isocyanate. Thus the reactor may be tubular and provided with a rapidly rotating shaft aligned centrally within, carrying blades, arms or sweeps which rotate about the central shaft. The amine vapour may be diluted with an inert gas e.g. nitrogen or with a vapourized inert solvent and the hot vapours emerging from the reactor, which is preferably at a temperature of from 160-300‹ C., are cooled by contact with a liquid cooling agent, preferably an inert organic solvent from which the isocyanate may subsequently be distilled. The preparation of p-tolyl isocyanate is described. A list of isocyanates prepared in this way is given.
Patent GB-674362-A (GB)
Title: Improvements in or relating to mechanisms for winding taper-ended packages
IPC: B65H54/32
Filed: 1950-02-16
Abstract: 674,362. Winding yarn. UNIVERSAL WINDING CO. Feb. 16, 1950 [May 2, 1949], No. 3972/50. Class 120(ii) In one modification of a winding mechanism, which may be attached to a winding &c.. machine of known design for the purpose of adapting it to wind headless packages with tapered ends, a frame 28 carrying the yarn guide 20, is reciprocated by the bar 21 from a traverse cam. The guide 20 carries a self-threading guide blade 47, slotted at 48, and the guide proper 46 is formed in a loop 45 of a cranked wire 44 which may turn on its own axis in its carrier fork 54 and also pivot about a pin 57. The frame 28 carries a pin 77 about which pivots a link 75, a stud 82 which slides in a slot 85 in a stationary fitment 86 and the other end 80 of the link 75 moves to rock the yoke 41 on which the guide 20 is pivotally attached. A spring 60 keeps the guide end 45 pressed on the package and by reason of the wire 44 being free to turn on its axis, the guide loop 45 and blade 47 do not oscillate laterally with the yoke 41. As the drum-driven package and the tube T grows in diameter, the amount of inward movement of the guide 46 at each end of the traverse, towards the longitudinal centre of the package, grows larger so that the package is formed with tapered ends. To change the shape of the package another link 75 of different dimensions may be substituted. In a further modification, the link 75 is omitted and replaced by a curved track in a stationary member which through a shoe serves to oscillate the frame carrying the groove towards the longitudinal centre of the package.
Patent GB-720704-A (GB)
Title: p,p-methylene-bis-(benzene sulphonyl hydrazide)
IPC: C07C311/49
Filed: 1953-02-13
Abstract: The invention comprises p: p1-methylene-bis-(benzenesulphonyl hydrazide) of the formula <FORM:0720704/IV (b)/1> It is prepared from diphenyl methane by treating with chlorosulphonic acid to give the disulphonyl chloride which is then treated with hydrazine.  In an example the preparation of p: p1-methylene bis (benzenesulphonyl chloride) and p: p1-methylene bis (benzenesulphonyl hydrazide) by the above method is described.