baber/WOPTO huggingface dataset:
Patent GB-790720-A (GB)
Title: Improvements in valve cores for inflating valves
IPC: F16K15/20
Filed: 1956-01-19
Abstract: 790,720. Inflating valves. SOC. NOUVELLE DES ETABLISSEMENTS BARDIN RENARD & CAUCHE. Jan. 19, 1956 [March 29, 1955], No. 1849/56. Class 135. A valve core for tyre and like inflating valves comprises a hollow tubular body 1 with a conical seat 4 at one end and a valve stem 6 carrying a resilient plug 12 backed by an enlarged base 8 of greater diameter than the plug which base, when the valve is closed, engages the core to limit the deformation of the plug. The plug 12 is mounted in a groove 11 between an enlargement 9 and the integrally formed base 8. The outer surface of the plug 12 instead of being cylindrical may have the surface of the frustum of a cone in its undeformed state. In this case, the included angle of the cone is less than that of the conical seat. The plug 12 is normally pressed against the seat 4 by a light spring 16 bearing on a terminal shoulder 15 and on a nut 2 for securing the core in the tyre valve housing. The nut 2 has an aperture 7 formed by milling flat portions thereon. The core body 1 has a resilient lip 3 for sealing purposes.
Patent GB-1382252-A (GB)
Title: Compositions containing dithionites
IPC: D06L4/30
Filed: 1971-01-14
Abstract: 1382252 Stabilization of dithionites ALBRIGHT & WILSON Ltd 14 Jan 1972 [14 Jan 1971 1 July 1971 14 July 1971] 1930/71 30937/71 and 32965/71 Heading C1A [Also in Division D1] A stabilized metallic dithionite is claimed as a substantially anhydrous composition comprising a major proportion (by wt.) of metallic dithionite and as a stabilizer a non-surfactant, non- polymeric compound containing at least 5 carbon atoms and a group of the structure wherein the unsatisfied carbon valency is filled by a carbon atom and the unsatisfied nitrogen valencies are filled by hydrogen and/or carbon atoms or by a cyclic compound formed from the said compound by cyclodehydration. The invention is stated to apply particularly to sodium dithionite but other metal dithionites such as potassium and calcium may be similarly stabilized. The stabilization is effected merely by mixing the stabilizer with the dithionite if both are in solid form. Alternatively the dithionite can be mixed with a melt of the stabilizer or an organic solution of the stabilizer which can then be evaporated to dryness. Compounds which are claimed as stabilizers for the process include: tallow acid monoethanolamide, lauric acid diethanolamide, methylene bis-stearamide, ethylene bis-stearamide, methylene bis-oleamide ethylene bisoleamide, benzamide, a pyridinium salt, a thiocyanate or phosphate ester, hydroxycarboxylic acid ether.
Patent GB-270641-A (GB)
Title: Improvements in or relating to brakes
IPC: F16D51/50
Filed: 1927-01-22
Abstract: 270,641. Kecheur, A. May 6, 1926, [Convention date]. Blocks and shoes acting on drums.-A brake is provided with expanding shoes 7, 8 bearing on symmetrical struts 5, 6, and expanded by rocking levers 13, 14, the ends 13a, 14a of which are expanded by a cam or the like, the opposite ends being pivoted on a member 17 slidable on a stationary support 1 under spring pressure. The bars 13, 14 engage the shoes by means of fork members 15, 16 which slide on the shoes. The shoes 7, 8 are pivoted on a member 11 capable of circumferential and radial movement relative to the stationary support 1 under the action of a return spring 12. The member 17 comprises a tube provided with slots in which are arranged pins 19 connected by a spring 20. The pins 10 extend from the tube and bear on the support 1. The struts 5, 6 are provided with hemispherical ends engaging bosses on the support 1 and the shoes 7, 8. The member 11 may be dispensed with and the shoes 7, 8 may bear directly by rounded ends on one another, or they may be directly pivoted together.
Patent GB-363861-A (GB)
Title: Alkaline earth-metal alloys having as a basis iron or copper
IPC: C22C9/00
Filed: 1931-01-20
Abstract: Beryllium and another alkaline-earth metal, preferably magnesium, are added to iron or copper or their alloys, excepting copper nickel alloys, in such amount that the total content of alkaline-earth metal is 0,2-15 per cent.  Other metals present may be nickel, cobalt, chromium, titanium, vanadium, molybdenum, tungsten, and zirconium, with or without about 1 per cent of silicon, phosphorus or carbon. The alloys may be cooled quickly from at least about 50 DEG  C. below their melting-point, followed by ageing at a lower temperature, which may be, for example, about 300 DEG  C.  The Specification as open to inspection under Sect. 91 (3) (a) refers also to nickel-beryllium and cobalt-beryllium alloys.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1343784-A (GB)
Title: Reverse lithographic printing method
IPC: B41N1/14
Filed: 1971-01-14
Abstract: 1343784 Lithographic printing process ING C OLIVETTI & C SpA 14 Jan 1971 [15 Jan 1970] 1956/71 Heading B6C [Also in Divisions C4-C5] A reverse lithography printing process in which a printing master is used comprising a base support sheet of a synthetic organic resin having a surface preferentially wettable by a non-polar hydrophobic liquid and an image pattern comprising a resin binder fused to the sheet and having a roughened surface for preferentially accepting a hydrophilic ink, comprises the steps (i) applying a waterimmiscible hydrophobic liquid to the surface of the master, (ii) applying a hydrophilic ink comprising a colouring substance in a watermiscible vehicle and 0À1-20% by wt. of linseed oil, castor oil, coconut oil, oleic acid and tall oil fatty acid as an additive which is insoluble in the vehicle but soluble in the hydrophobic liquid, (iii) placing an ink-receiving sheet in contact with the inked surface of the master, and (iv) transferring ink from the master to the said sheet. The water-miscible vehicle may comprise triethylene or polyethylene glycol and shellac or a polyethylene imine resin, and the colouring agent may be an acid dye. The printing master may be prepared as in Specification 1,211,112, i.e. by transferring the image areas of the photo-conductive layer of an electrophotographically-produced copy to a base transfer sheet. The master may be used in the system of Fig. 2, in which the ink and hydrophobic liquid are separately applied to the plate, or in that of Fig. 3, in which they are premixed before application. In Fig. 2, hydrophilic ink from supply 22 is applied to plate 10 by rollers 24, while hydrophobic liquid in 28 is simul. taneously applied to 10 by rollers 26. Sheet 30 for printing is fed between impression cylinder 32 and plate cylinder 20. Alternatively the ink can be transferred to a blanket cylinder and printed by offset. In Fig. 3, hydrophobic liquid, e.g. hydrocarbon oil, is applied to roller 36 and milled into the ink by successive rollers 34 before application to plate 10.
Patent GB-606857-A (GB)
Title: Improvements in or relating to electrical or petrol driven trucks and similar vehicles
IPC: B62D1/12
Filed: 1946-01-21
Abstract: 606,857. Walk-type trucks. ELECTRUKS, Ltd., and REEVES, W. Jan. 21, 1946, No. 1999. [Classes 79 (iii), 79 (iv) and 79 (v)] In a walk-type truck, preferably battery - propelled, means for cushioning the torque reaction when the driving power is switched-on or the brakes applied comprises a driving axle having a casing which is rotatably mounted in bearings, rotation of the casing being resisted by a substantially vertical curved leaf spring, one end of which is fixed to the casing and the upper end bears on the frame. The brakes are automatically applied if the driver lifts or releases the steering handle ; a hand-brake applies the brakes and locks the steering handle in its raised position and prevents the motor being started. A hand-lever is provided, whereby the brakes mav be released although the hand-brake is " on," such hand-lever being combined with a master switch so that no current can be switched on until such hand-lever is returned to its normal position. The rear-axle casing 4a is mounted in bearings 27 and has attached thereto a pair of curved lead-springs 10a connected to the frame by eyes 10 and brackets 11 to absorb torque reaction. The vehicle is steered by handle 8 and the handle is also pivoted for vertical movement about a horizontal axis 29, in the raised position flexible cable 14 attached to lever 12b freely pivoted on the cross-shaft 13, permits the tension spring 12 to apply the brakes; on lowering the handle 8 the lever 12b engages lever 19a fast with the cross-shaft 13 and rotates the latter against the tension of spring 12 and so releases the brakes; further downward movement of handle 8 rotates the lever 35 into such a position that the hand-grip 30 and rod 31 on the handle becomes effective to move lever 32 and rod 33 to actuate the contactor switch 34 to start the motor 9. The hand-brake 15 acts through rod 18 to rotate the cross-shaft 13 to apply the brakes, and acts through rod 17 and link 17a to rotate the shaft 16a integral with the arcshaped member 16 which engages under the hook 8a on the handle and so prevent the handle being lowered to switch-on the motor whilst the brakes are applied. A hand-lever 36 may be provided which by rods 23, 25 turns the brake shaft 13 against the tension spring 12 to release the brakes, the lever 36 being provided with a ratchet and pawl to maintain its position, whereby the vehicle may be manhandled; whilst the brakes are so released main switch 21 is opened so that the motor cannot be started until the lever 36 is returned to its normal position. The main switch 21 is also manually operable by control 20.
Patent GB-589676-A (GB)
Title: Improvements in machines for performing textile operations upon warps of yarns
IPC: D04B27/00
Filed: 1945-01-25
Abstract: 589,676. Stop-motions for yarn-printing machines. BRITISH CELANESE, Ltd. Jan. 25, 1945. No. 2006. Convention date. Feb. 15, 1944. [Class 100 (ii)] [Also in Group VIII] A stop-motion for a machine for printing a sheet of yarns comprises a pair of nip rollers. 9, 11 extending beneath the sheet of yarns 1 and positioned between the machine and a guide roller 5, the engagement of a broken yarn 14 by the nip rollers causing it to be drawn at a speed greater than the rate of travel of the warp so as to operate the stop motion. A dancing bar 12 connected to a micro switch 13 of an electrical circuit for operating the stop-motion, also extends beneath the sheet of yarns and is positioned between the nip rollers 9, 11 and the guide roller 5 so that when the broken yarn 14 is picked up by the rollers the dancing bar is depressed and operates the micro switch of the electrical circuit to stop the machine.
Patent GB-267455-A (GB)
Title: Improvements in or relating to combined adjustable desks and seats
IPC: A47B39/02
Filed: 1927-01-24
Abstract: 267,455. Engers, A. Jan. 24, 1927. Seat compartments.-In a combined desk and' seat of the kind in which operating mechanism is provided by which vertical adjustment of the desk causes the seat to be raised or lowered along an inclined guideway, the vertical adjustment of the desk operates a cable &c. to adjust the seat simultaneously with and in the same sense as the desk. In the construction shown, the seat 21 is carried by a plate 18 slidably arranged upon inclined guides 19 and operated by cables &c. 16 when the height of the desk is adjusted. A pawl 30 prevents downward movement of the seat. The seat back 22 is carried by arms 23 slidable in fixed guideways 24 and connected to levers 25 passed through holes in the plate 18 and pivoted at 26 to the frame so that when the seat is raised the seat back 22 is moved upwardly and backwardly to increase the width of the seat.
Patent GB-534350-A (GB)
Title: A viewing screen for a photographic camera
IPC: G03B17/44
Filed: 1940-02-02
Abstract: 534,350. Photographic cameras ; hinges. KODAK, Ltd. Feb. 2, 1940, No. 2058. Convention date, Feb. 2, 1939. [Class 98 (i)] [Also in Group XXV] The viewing screen 19 of a camera is carried by a base member 16 to a wall of which is hinged a cover 39 with side wings 40, the hinge being formed by pins 37 slidably inserted in bores in the wall and retained in position by the side wings 40, which are sprung on to the pins and bear against collars 38 on them. The construction avoids breakage of the thin wall of the base member, which is liable to occur if the pin is a tight fit in the bore or is screwed into it. The construction is shown applied to a roll-film adapter for a camera 10, and comprising a plate 12 engaging runners 11 on the camera body and carrying undercut guides 14 in which slides the base member 16, the lower part of which is formed as a rearwardlyextending rectangular frame carrying the viewing screen 19 whilst the upper part is formed as a support for a miniature roll-film camera body 21; by sliding the member 16 between positions determined by spring catches 23, 23' either the viewing-screen or the camera body 21 is brought into operative position. A spring finger 43 engages one of the wings of the cover 39 to control the movement, and a lug 44 on the wing engages the spring when the cover is fully open to prohibit further movement.
Patent GB-1372332-A (GB)
Title: Roll stand for the edge rolling of stock
IPC: B21B1/12
Filed: 1972-01-17
Abstract: 1372332 Rolling FRIED KRUPP HUTTENWERKEAG 17 Jan 1972 [3 Feb 1971] 2063/72 Heading B3M A roll stand for the edge rolling of stock such as flat steel bar and angle-section bar comprises driven edging rolls 1 and a pair of support rollers 3 disposed with their axes in a plane in which the axes of the edging rolls 1 lie. The edging rolls 1 may be provided. Each support roller 3 (or 8, Fig. 4, not shown) is mounted in a support 6. One end of the upper roller support 6 is pivoted at 4 to the fixed lower support 6 whilst the other end is associated with an adjusting device so that the distance between the support rollers 3 may be set 0À5-1 mm. larger than the thickness of the rolled stock passing through.
Patent GB-1174751-A (GB)
Title: Elevator-System Controls
IPC: B66B5/02
Filed: 1968-01-15
Abstract: 1,174,751. Lift control systems. RELIANCE ELECTRIC & ENG. CO. 15 Jan., 1968 [20 Jan., 1967], No. 2064/68. Heading B8L. In a system in which requests for up or down service made from landings (hall calls) are automatically assigned to an individual one of a plurality of cars, in the event of failure of the particular assigning means a hall call is given to all of the cars in group service. The system uses logic elements and is of the type described in Specification 1,163,727. It includes a " call finder " which scans all floors sequentially to locate a hall call and an " allotter " which also scans the floors to detect a call which has been "found" and then allots the call to the " optimum " car as determined by comparison of a voltage analogue of its work load and position with a ramp voltage. The system deals with three distinct failures viz.: (a) failure of the call finder to locate a hall call when one has been made, (b) failure of the allotter to detect that a call has been formed, or to allot it within a prescribed time, and (c) failure of the power supply to the call finder. For (a) a timer (0À5 sees.) is started when a hall call is made and if this times out before the call is " found " the call is switched directly to every car which is in group service, by-passing the call finder and allotter circuits. A similar arrangement is used for (b), the timer operating for 100 msecs. However, it could happen that the allotter scanner, having detected a call, is unable to assign it to an individual car within this time due to all the cars being heavily loaded; this would be shown by the ramp voltage reaching a high value, and in this case a further timer is switched in which inhibits the first for a period of 1 minute, thus preventing the " failure " procedure in cases of simple overload. In the event of (c) all cars which have power on them are caused to stop at all floors ahead of them. The system is one which allows closing doors to be re-opened by a late hall call; if the call button sticks " on " the car could thus never get away, but in the system described this is prevented by interposing a capacitor so that only the impulse when a button is first pressed is effective.
Patent GB-1509889-A (GB)
Title: Coil former assemblies
IPC: H01F5/02
Filed: 1977-01-20
Abstract: 1509889 Bobbins SIEMENS AG 20 Jan 1977 [21 April 1976] 02201/77 Heading B8M [Also in Divisions H1 and H2] A coil former assembly comprises a coil former and one or more generally L-shaped soldering tags each disposed in a respective slot provided in a flange of the coil former such that both ends of each tag protrude, each tag being retained by an integral resilient member engaging the flange. The coil former may be of cast synthetic resin, and may have a winding 3 wound on it. Each limb of the tag may have a resilient arm 8, 10, enabling the tag to be mounted as shown, so that the central longitudinal axis of the coil former may lie parallel with the circuit board 4 on which the coil is mounted by soldering pins 9 to a track 5. Alternatively ends 7 and 9 may be transposed enabling the coil to be mounted with the axis perpendicular to the board (Fig. 3, not shown). The soldering tags may have resilient ears (17, 18, Figs. 4 and 5, not shown) engaging a recess (20) in a slot (21) in which the tag is mounted.
Patent GB-752658-A (GB)
Title: Improvements in or relating to siloxane elastomers
Filed: 1954-01-25
Abstract: A curable composition comprises (1) an organo-polysiloxane having a viscosity of at least 100 cs. at 25 DEG  C. and 1.9 to 2.1 organic radicals per Si atom, the radicals being saturated halogenated aliphatic radicals with or without saturated aliphatic hydrocarbon and/or monocyclic aryl hydrocarbon radicals, the halogenated radicals being present in amount of at least 1 halogenated radical per 200 Si atoms, the halogen in the halogenated radicals being chlorine, bromine or iodine, and in the halogenated radicals there being not more than 1 of the halogen atoms per carbon atom and there being no halogen atom on a carbon atom beta to the Si atom to which the halogenated radical is attached; and (2) a polyamine which contains no free acid groups, in an amount of at least 1 molecule of the amine per 400 Si atoms. The siloxanes may be cured at temperatures from room temperature up to 400 DEG  C. by mixing the siloxane and amine by milling, dispersing one in the other by means of a mutual solvent, or by contacting the surface of the siloxane with the amine.  The latter method is suitable for curing coatings, e.g. in making coated organic fabrics or other thermally unstable materials, and for curing siloxane putties for caulking.  In examples, the copolymer of octamethyl- and chloromethylheptamethyl-cyclotetrasiloxanes was cured with various polyamines by milling (1) alone, (2) with silica treated with (CH3)3SiCl, (3) with diatomaceous earth and fume silica; (4) the copolymer was spread thinly on glass tape and cured by contact with the amine; (5) different copolymers were mixed with triethylenetetramine.  Other fillers specified are titania, zinc oxide, ferric oxide, zirconia, clay, powdered quartz, silica aerogels, carbon black, cork, wood flour and cotton linters.  Many examples of the siloxane polymers and copolymers and polyamines are given.
Patent GB-347696-A (GB)
Title: Improvements in or relating to machines for folding paper or the like
IPC: B65H9/04
Filed: 1930-01-23
Abstract: 347,696. Folding paper &c. SPENCER & COOK, Ltd. and COOK, T., Empire Works, Stalybridge, Cheshire. Jan. 23, 1930, No. 2340. [Class 100 (i).] Sheet-registering devices.-In a machine for folding paper or like sheets the lateral edges of the sheets are registered by a device which is adjustable lengthwise of the sheet. The registering device is of the type comprising a gripper 8 which draws the sheet against a side guage 5, and is mounted on a bracket 7 slidable on a member 11 fixed to the framing 4 of the folding-machine. A stud 12 on the bracket 7 passes through an elongated slot 11a in the member and serves to secure the bracket 7 in any desired position of adjustment. The gripper 8 is reciprocated from a shaft 18 through lever- and-link mechanism 9, 10,14,15, the lever 14 being fixed to an intermediate shaft 13 mounted in bearings 11b on the member 11 and the lever 10 being splined on the shaft 13 and movable along it with the bracket 7.
Patent GB-435359-A (GB)
Title: Improvements in piston rings
IPC: F16J9/20
Filed: 1935-01-24
Abstract: 435,359. Piston - rings. SIMPLEX PISTON RING CO. OF AMERICA, Inc., . 1966, East 66th Street, Cleveland, Ohio, U.S.A. Jan. 24, 1935, No. 2358. Convention date, Jan. 29, 1934. [Class 122 (i)] A thin split piston-ring comprises a single helical convolution or is of bowed form whereby it will exert axial pressure when flattened and mounted in a groove with at least one other ring. When several such rings are mounted in a ring groove, one or more of them may be expanded by a spring L. Oil retaining grooves may be formed by bevelling the ring peripheries or reducing the diameter of some of them, Fig. 15. Where the rings are of small width the lowest ring m<1> is made wider to provide a good land surface, and this ring may contact the cylinder wall or not. Alternate rings P, P', Fig. 14, may make sealing contact with the cylinder wall and base of the ring groove. To prevent relative rotation of the rings an expanding spring L may engage recesses W therein and the ring ends may be bevelled to avoid risk of interlocking of the rings at the joints. Specification 427,256 is referred to.