baber/WOPTO huggingface dataset:
Patent GB-643040-A (GB)
Title: Improvements in or relating to pickers for looms for weaving
IPC: D03D49/36
Filed: 1947-11-14
Abstract: A picker for a loom for weaving is made from a moulded polyvinyl alcohol material, preferably plasticized with a suitable plasticizer in which 100 parts by weight of polyvinyl alcohol may be used with 20-65 parts by weight of the plasticizer, a particularly advantageous composition having 40-50 parts by weight of the plasticizer which may be a polyhydric alcohol such as glycerine, ethylene glycol and the like.  Mixtures of various plasticizers may be used such as glycerine and water.  A suitable composition consists of 100 parts by weight of polyvinyl alcohol plasticized with 10-30 parts by weight of glycerine, and 10-30 parts by weight of benzaldehyde.  The polyvinyl alcohol used may be an ethylene-modified polyvinyl alcohol.
Patent GB-224391-A (GB)
Title: An improved case for playing cards and the like
IPC: A63F1/08
Filed: 1923-12-01
Abstract: 224,391. Vivian, G. S., and Wadding- ton, Ltd., J. Dec. 1, 1923. Scoring and marking apparatus.-In a case for playing cards divided into a number of compartments a series of holes 22 are provided in blocks 21 forming the partitions to serve for scoring in whist, &c., pegs 23 being provided in recesses 24 in the blocks.
Patent GB-536590-A (GB)
Title: Improved production of synthetic resins
IPC: C08F212/14
Filed: 1939-11-17
Abstract: 536,590. Vinyl polymerization products. ABBEY, A. (Dow Chemical Co.). Nov. 17, 1939, No. 30308. [Class 2 (iii)] Resinous products which are not soluble to any appreciable extent in common organic solvents are prepared by heating a mixture consisting essentially of a polymerizable vinyl aromatic compound and between about 0.1 and 2 per cent. by weight of tung oil or oiticica oil at 30‹ to 250‹C., in the absence of a solvent or other medium. Vinyl aromatic compounds specified are styrene, p-chloro-styrene, o-ethyl styrene. and vinyl naphthalene. The resinous product may be heated in a current of inert gas to remove volatile unpolymerized material. Pigments, dyes, plasticizers or fillers may be added before polymerization. The products are clear colourless mouldable resins, tougher and less plastic than polystyrene. Specification 392,924 is referred to.
Patent GB-1055018-A (GB)
Title: Machines for making swabs with cotton tips
IPC: A61F13/38
Filed: 1965-07-16
Abstract: 1,055,018. Making swabs. JOHNSON & JOHNSON. July 16, 1965 [July 21, 1964], No. 30329/65. Heading A5R. Swabs comprising cotton wound about one or both ends of sticks S are formed in a machine which includes a wheel 53 or 58, on to which is separately fed the cotton and the sticks, the cotton being partly separated into short lengths by a cam on a roller 73d and the sticks being rotated as they move with the wheel so that the lengths of cotton become completely separated and so that each length becomes wound about a stick. As shown in Fig. 11, the wheel is provided with moulds 63 having recesses to receive the -wound cotton. The rotation of the sticks relative to the wheel 53, 58 is effected by an inner wheel 69, Fig. 3 (not shown), which frictionally engages the sticks intermediate their ends. The machine. also. includes a stick supply hopper 12 having inclined surfaces 24, 25, 32, 33, and agitating rotating wheels 26, 27. Suitably recessed wheels 34, 37, 38, 47 pass the sticks to the wheel 53, the wheel 47 being arranged to increase the spacing between adjacent sticks. A conveyer 81 removes the swabs for packaging.
Patent GB-244089-A (GB)
Title: Improvements in and relating to waterless plate gas holders
IPC: C10M101/02
Filed: 1925-12-01
Abstract: 244,089. Lechler, P. [Firm of]. Dec. 8, 1924, [Convention date]. Holders.-Waterless plate gas-holders are sealed by means of a solution of mineral bitumen in a mineral oil such as a lignite or low temperature tar oil having a high boiling curve starting at about 300 C., a low setting point not above -20 C., and a high flash point, the bitumen being of such a nature that it dissolves in the oil without slimy deposits. A suitable solution is 20 per cent mineral) oil pitch in 80 per cent of mineral oil having a specific gravity 0.915, flash point 153 C. and a setting point below -22 C. and such that 70.3 per cent passes over on fractional distillation between the temperatures of 300-360 C.
Patent GB-772462-A (GB)
Title: Improvements relating to fluid-tight joints
Inventor: CHURN CHARLES REGINALD
IPC: F16L37/138
Filed: 1954-10-21
Abstract: 772,462. Pipe joints. FAIRY AVIATION CO., Ltd. Oct. 21, 1955 [Oct. 21, 1954], No. 30388/54. Class 99(1) The ends of pipes 1, 2, are formed with interlocking portions 4, 5, which prevent the pipes from separating longitudinally, the pipes being held interlocked by a sleeve 7 clamped to one or both of the pipes 1, 2, and carrying packing rings 11 which render the joint fluid tight. The clamping means comprises a split collar 12 integral with the sleeve 7 and tightened by a bolt 14; a second clamp may be provided at the other end of the sleeve. The interlocking portions 4, 5, of the pipes may be of rectangular shape as shown or may be of castellated, saw-tooth, or curved form. A sealing medium may be introduced between the pipe ends and the sleeve to form a permanent bond therebetween.
Patent GB-1276296-A (GB)
Title: Piston valve
Inventor: ANDREWS THOMAS DESMOND HUDSON
IPC: F15B13/043
Filed: 1968-06-26
Abstract: 1276296 Valves DOWTY TECHNICAL DEVELOPMENTS Ltd 24 June 1969 [26 June 1968] 30402/68 Heading F2V [Also in Division G3] A piston-valve has a body formed by a plur -  ality of similarly shaped metal plates 2 to 9, and 11, secured together in a surface to surface relationship by a brazing process, e.g. in an induction furnace, and a bore extending transversely through the plates with a spool member 43 to control flow through the valve, co-operating with ports formed by zones cut away from the plates before brazing, Figs. 4 to 10 (not shown), the bore having an axial length which at most is slightly greater than an overall dimension of one of the surfaces of the plates, and connecting with at least one chamber 17 in which fluid pressure may exert an end wise force on the spool, and a motor 57 to adjust the fluid pressure and control the endwise movement of the spool. In operation, HP fluid is admitted to a bore (15), Figs. 2 and 6 (not shown), where it passes through a filter sleeve (66), and restrictors (67), (68), to jet nozzles 47 and 48, the escape from these nozzles being controlled by diaphragms 63 and 73 which determine the pressures in the chambers 17 and 24 acting on lands 38 and 41 of the spool. The positions of the diaphragms 63 and 73 are controlled by magnetic motors 57 and 58.
Patent GB-840074-A (GB)
Title: Projectile for drug delivery to animals
Inventor: CROCKFORD JACK A
IPC: F42B12/54
Filed: 1958-09-24
Abstract: 840,074. Projectiles. PALMER CHEMICAL & EQUIPMENT CO. Inc. Sept. 24, 1958, No. 30493/58. Class 9(1). [Also in Group VI] A projectile for injecting drugs into animals comprises a hollow body portion 11 communicating with a hollow needle 29 at the forward end and divided into two chambers by a piston 4, the drug being housed in the forward chamber while the rear chamber contains gas-producing reactants which, when intermixed, produce a thrust on the piston to expel the drug. The reactants comprise two substances kept apart until after the projectile is fired and may as in Fig. 2 be a solid compound 36 surrounding a resilient container 35 filled with a liquid reactant. The rear of body 11 is closed by a resilient disc 20 and a cap 18 having a hollow extension of reduced diameter on to which is fitted the shaft 31 of a stabiliser 40 carrying fins 13. On firing the projectile; e.g. from an air gun, the gases from the gun pass into the shaft through the opening 16 and impinge on the flared head 24 of a needle 23 extending through the cap 18. This forces the needle through the sealing disc 20 to puncture the container 35. On reaction of the liquid from container 35 with the solid 36, the gases evolved drive the piston 4 forwardly to eject the drug through the needle 29. On the needle is a barb 44 to prevent withdrawal of the needle after entry into an animal. In Fig. 12, the solid reactant 123 is housed in a cavity in the piston 119, which has a ridged outer surface 120 to form an air seal with the body 111. A stopper 125 secures the solid 123 and separates it from the liquid reactant 128, which is placed in a cavity in the rear closure 113. A stabiliser 116 is preferably made of string, but plastics and metals may also be used. On firing the projectile, the stopper 125 sets back due to its inertia and the liquid 128 mixes with the solid 123 with the consequent production of gas to drive the piston as before. The body and cover members of the projectile are preferably made from aluminium but other metals or plastics may be used. The liquid may be water or, depending upon the nature of the solid used, hydrochloric or acetic acid, or hydrogen peroxide. The solid gas-producing agent may be sodium bicarbonate mixed with citric acid or tartaric acid and for preference combined with an inert material such as saccharine. Zinc and other metals may also be used.
Patent GB-537471-A (GB)
Title: Improvements in or relating to mountings for electric fittings
IPC: H01R33/965
Filed: 1939-11-21
Abstract: 537,471. Electric lamp-holders. BULL, V. G., and BRITISH POWER BOAT CO., Ltd. Nov. 21, 1939, No. 30529. [Class 75 (iii)] [Also in Group XXXVI] Relates to a mounting for an electric fitting, particularly for electric light, which shall seal off the fitting from air, water, firedamp &c. The device is suitable for signal lamps, ship and aircraft lamp fittings, landing lights &c. The invention is described as applied to ships' navigation sidelights. The device comprises a metal tube 11 with flanges 12, 13, the flange 13, or both, being detachable. There are means for clamping the flanges to opposite sides of a support 10, e.g. the side wall of a wheel house, a lamp holder 22, 23, 25 with a backplate 15 and a gland, through which is passed a supply cable 17. The plate 15 with sealing gaskets 19 is clamped to flange 12 by metal screws by unscrewing which the lamp holder may be withdrawn without disturbing the seal on the opposite side of the support 10. The lamp casing flange 29 beds on a gasket 30 and is secured, with flange 13, by screws 32. The part of the holder which houses securing terminals, contacts &c. is disposed within the tube 11, so that radiation may be screened off. The cable may be screened by metal braiding, extending through the gland and connected to a metal part.
Patent GB-878132-A (GB)
Title: Amine-epoxide compositions
IPC: C08G59/50
Filed: 1958-09-24
Abstract: Polyepoxides having an epoxy equivalency greater than 1,0 are cured with organic polyamines containing at least 2 primary amino groups each of which is linked through a carbon chain to a common carbocyclic ring system, the number of carbon atoms in each of the carbon chains and carbocyclic ring system taken together being at least 14.  Two main types of amine are disclosed: (1) those obtained by replacing the carboxyl groups of polymerized unsaturated fatty acids by an -NH2 or -CH2NH2 group, and (2) those obtained by replacing the carboxyl groups in an addition product of at least 2 mols of an unsaturated fatty acid with 1 mol of an aromatic compound by an -NH2 or -CH2, NH2 group.  The replacement may take place by Hofmann degradation of the amides or by conversion into the nitriles and subsequent hydrogenation (see Group IV(b)). Unsaturated fatty acids specified are oleic, linoleic, linolenic and recinernic (8,11-octadecadienoic); and aromatic compounds specified are benzene, anisole, xylene, diphenyl and naphthalene. Epoxy compounds specified are glycidyl ethers of ethylene glycol, propylene glycol, glycerol, trimethylolpropane, pentaerythritol, catechol, and bisphenol A; and a large number of di-glycidyl amines, of which diglycidyl aniline is used in Example (3) and a mixture of 1,1,1-trimethylol propane triglycidyl ether and N,N1-diaethyl-N,N1-di-2,3-epoxypropyl-4, 41-diaminodiphenyl methane is used in Example (4). Triethylene tetramine is used as hardener in comparative examples; and butanol/toluene is used as a solvent.  Specifications 518,057, 679,536, 680,997, 717,291, 730,670, 739,701, 772,830 and 816,923 are referred to.ALSO:In Examples (1) dimerized linoleic acid and (4) xylyl-bis-stearic acid (principally 1,3-dimethyl-4,6-[di-9-stearic acid]-benzene, prepared from 2 mols of oleic acid and 1 mol of an isomeric mixture of xylenes) are first converted to nitriles by treatment with ammonia in the presence of cobalt acetate hydrate; the nitriles are subsequently hydrogenated to form diamines by treatment (1) in methanol and liquid ammonia in the presence of Raney cobalt and (4) in tetrahydrofuran in the presence of Raney cobalt and ammonia.  Specifications 518,057, 679,536, 680,997, 717,291, 730,670, 739,701, 772,830 and 816,923 are referred to.
Patent GB-250864-A (GB)
Title: Improvements in or relating to tongs and carriages
IPC: E21B19/16
Filed: 1925-04-06
Abstract: 250,864. Smith, N. K. April 6, 1925. Borehole apparatus.-A pipe tongs comprising a yoke and two pivoted levers which lock together round a pipe is provided with latch means for holding the levers open in any desired position to facilitate adjustment of the tongs round a pipe &c. The pipe tongs which may be suspended in balance on chains 52 comprises two swinging arms 17, 18 pivoted one at each end of upper and lower arcuate plates 11 connected by a web. The plates have gripping edges A, Band C of varying diameters. When the arms 17 and 18 are swung inwards towards each other to grip a pipe a projection 24 on the arm 17 takes into a hollow 23 in the arm 18 and further acts on a projection 22 cam-like, so as to make the gripping surfaces 46 bite into the pipe and secure it against the gripping edges of the arcuate plates. The arm 18 is provided with a hand released latch 32, Fig. 2, to secure it in any desired position. The arm 17 is held in open position by the lip 45 of a spring-pressed pivoted dog 44, engaging the lug 24. Gripping discs 46 preferably with diagonal teeth are secured in dovetail slots in the arm 18 by spring-pressed pins. One of a pair of co-operating wrenches, Fig. 7, may be supported in a sleeve 62 on a spring 63 and a pedestal 61 on a rotary table. The lever 51 of the wrench is placed between jaws of the housing 69 and secured by the engagement in a slot in the lever of an eccentric pin turned by a handle lever 78. A latch 83 is swung down to lock the lever 78 in position. Specification 250,752 is referred to.
Patent GB-890785-A (GB)
Title: Improvements relating to sheeting for use as carpet underlay
Inventor: GREENA ROBERT WALTER FREDERICK
Filed: 1957-10-01
Abstract: A foamable and vulcanizable composition comprises styrenebutadiene copolymer rubber, stearic acid, mineral oil plasticizer, whiting, china clay, sodium bicarbonate, zinc oxide, mercaptobenzthiazole and tetramethylthiuram disulphide.  The composition is sheeted out and used in the manufacture of laminates (see Group VIII).ALSO:A foamable and vulcanizable composition comprises styrenebutadiene copolymer rubber, stearic acid, mineral oil plasticizer, whiting, china clay, sodium bicarbonate, zinc oxide, mercaptobenzthiazole and tetramethylthiuram disulphide.  The composition is sheeted out and used in the manufacture of laminates (see Group VIII).
Patent GB-707296-A (GB)
Title: Improvements in fork-lift trucks
Inventor: GOLDING CHARLES HENRY
IPC: B66F9/20
Filed: 1950-12-16
Abstract: 707,296. Fork lift trucks. RUBERY, OWEN & CO.. Ltd. Dec. 12, 1951 [Dec. 16, 1950], No. 30719/50. Class 78 (3) [Also in Group XXXI] A fork lift truck, in which the fork can be raised and lowered relative to a supporting mast (whilst the mast is also being telescopically extended or contracted) and can be tilted in a fore-and-aft direction relatively to the truck, has a main shaft, which can be selectively driven in either direction from a single prime mover, and gearing whereby a drive can be taken from the main shaft selectively to (a), drive the truck (b), raise or lower the fork and to extend or contract the mast, or (c) tilt the mast. As shown, the invention is applied to a lift truck which is supported by wheels 11 and a rear steering and driving wheel 12. The truck has a reversible electric motor 17 or a non-reversible prime mover and a reversing gear. The motor is connected by a chain with a sprocket 21a on an input shaft 21 of a gear box 28. The shaft 21 is gear connected with lay shafts 22, 23. The shaft 22 rotatably carries gears 34, 35 meshing with gears 36, 37 on shafts 25, 26 respectively, the shaft 25 being connected to the rear wheel and the shaft 26 being connected through bevel gearing 49, 50 with a shaft 29 which is connected to mechanism for raising or lowering the fork 14. The gears 34, 35 can be clutched to the shaft 22 by an axially slidable dog clutch member 40. The shaft 23 rotatably carries a gear 43, to which it can be clutched by a similar dog clutch member 46, which gear 43 meshes with a gear 44 on a shaft 24 connected to mechanism for tilting the mast 13. The clutch members 40, 46 carry forks 59, 61 having cheeks between which a selector 55 is adapted to engage the selector being carried by an axially movable shaft 54 under the control of a hand lever 19. The hand lever passes through a J-shapped gate (not shown), to effect the desired clutch engagement. Alternatively use may be made of two levers, one-a two position levercontrolling the tilting operation and the othera three position lever-controlling the wheel drive and fork raising, the two levers being interlocked so that fork raising and mast tilting can only be effected one at a time. Limiting means may be provided for the fork raising and mast tilting. Specification 707,295, [Group XXXI], is referred to.
Patent GB-483929-A (GB)
Title: Improvements relating to rotary pumps or compressors and prime movers
IPC: F04C2/08
Filed: 1936-11-10
Abstract: 483,929. Rotary engines. LANGLEY, T. W., and TECALEMIT, Ltd. Nov. 10, 1936, No. 30723. [Class 110 (ii)] The engine or pump is provided with a number of impellers 1 rotating about spaced axes in the same direction. Each impeller is constructed in accordance with the following formulµ wherein D =overall length of the impeller, r=radius of curvature of each end of impeller, M=distance between the centres of the radii of curvature of the ends of the impeller, R = radius of curvature of the side walls of the impeller, W=greatest width of impeller. A small clearance may be provided between the impeller tips and the casing. External gears couple the impeller shafts. A flexible coupling may be embodied. The inlets to the working spaces are coupled together, as are the outlets. An inlet 27, Fig. 3, leads to branches 26, 28, in a pump end cover. The opposite ends of the branches connect through passages 29, 30, with an outlet 31. A disc valve 36 co-operates with a seating 37 and the end of a seat 32. A further disc valve 38 is provided, and similar valves 41, 42, arranged in the branch 28. A passage 43 communicates between the central pumping space 21 and the passage 28. Spring- pressed abutments may bear on the impellers, or spring-pressed packing pieces may be arranged within the impeller tips. It is also stated that the impellers need not be equal in size. The pumps or engines may be provided in sets coupled together. In a modification, rotary sleeve-valves are driven by a central shaft, to control inlet and outlet ports.
Patent GB-797716-A (GB)
Title: Reading and punching device
IPC: B26D7/28
Filed: 1956-10-09
Abstract: 797,716. Selective punching machines. ADALIA, Ltd. Oct. 9, 1956 [Oct. 19, 1955], No. 30797/56. Class 31 (2). [Also in Group XIX] A punching device for recording data on a record card or tape 16, Fig. 2, comprises a shell 2 having a part-cylindrical inner surface, radially movable punches 4 urged by springs to project from this surface and means for locking selected punches in the projecting position and a roller 8 movable on crank arms 9 to roll round the inside of the shell, the tape being between the roller and the shell and forced into contact with the surface of the shell with the data indicating positions thereof in register with the punches 4 in the shell. The crank arms 9 are mounted on shafts 10 having bearings in a base 3, one of these shafts being driven to cause the roller to move round its orbit. The roller is driven by frictional engagement between the end parts thereof and cylindrical surfaces formed partly on the shell and partly on the base. To avoid the possibility of slip, an internally toothed ring may be provided, the roller having a gear at one end meshing with it. A counter balance 12 is provided to balance the weight of the roller. Pins 19 on the roller engage track holes in the tape so that as the crank arms 9 rotate, the tape is advanced in steps corresponding to a block of data-indicating positions for each revolution. The punches are arranged in eight rows of five and the movement of the roller causes each row of perforating positions on the tape to register in turn with the corresponding row of punches. Solenoid-operated latches may be provided to latch selected punches in the projected position, unlatched punches being pushed back against their springs as the roller passes over them. In the form of Fig. 16, the shank of the punch is surrounded by a quantity 119 of iron dust in oil, a coil 118 being provided to magnetize the iron dust and cause it to lock the punch in the projected position. For dealing with cards, the roller has a pair of grippers one for the leading edge of a card just entering the punching device and the other for the trailing edge of the card leaving the punch. The grippers are closed by means at one end of the shell and opened by means at the other. In a modification, instead of causing the roller 8 to move in a circular orbit, it rotates on a fixed axis and the shell is moved in a circular orbit by eccentrics at each end so that the relative motion obtained is the same as in the form described. The punches may be used also as sensing pins for reading punched cards or tapes. If the punches are of the kind which cut out a disc of paper, the discs are withdrawn from within the roller 8 but preferably the punches merely pierce holes and do not leave any loose pieces.
Patent GB-800624-A (GB)
Title: Improvements relating to fasteners
Inventor: FERNBERG ERIC BIRGER
IPC: F16B5/06
Filed: 1955-10-27
Abstract: 800,624. Stud and socket fastenings. PRODUCTS, Ltd., F. T. Oct. 24, 1956 [Oct. 27, 1955], No. 30799/55. Class 44 In a two part fastener for securing two members 21, 22 together one part being of strip metal bent into a substantially diamond - shaped snap-engaging clip 10 with end apex 11 closed and the other open and integral with a pair of outwardly turned feet 17, 18, the other part is a resilient cap 24 formed internally so that the closed apex of the clip can be inserted in and held in the closed end of the cap, the arrangement being such that the clip can be engaged by its feet in one member 21 to be fastened and snapped through a hole 23 in the other member 22, after which the cap can be pressed over and engaged by the apex of the clip whilst the rim 25 of the cap is pressed into sealing engagement with the other member 22 to be fastened. As shown, the head of the cap is formed with a parallel-sided slot 29, the width of which in the unstressed state is a little less than the width of the clip. In another arrangement, Figs. 8-10 (not shown), the head of the cap is formed internally with a pair of lugs, the apex of the clip in the assembled position, lying on a recess above the two lugs. Similar constructions are described with reference to Figs. 1-8 (not shown) of drawings accompanying the Provisional Specification. Specification 618,939 is referred to.