baber/WOPTO huggingface dataset:
Patent GB-603481-A (GB)
Title: Modified interpolymers
IPC: C08G67/02
Filed: 1946-01-31
Abstract: Modified mono-olefin hydrocarbon/carbon monoxide interpolymers are made by contacting the interpolymer, at a temperature below its decomposition temperature, with a minor proportion of a basic compound.  Basic compounds specified are ethylamine, propylamine, isobutylamine, hexylamine, decylamine, octadecylamine, hexamethylenediamine, octamethylenediamine, decamethylenediamine, piperazine, 1,12-diaminooctadecane, pyridine, piperidine, quinoline, toluidine, diphenylamine, aniline, dimethylaniline, xylidenes, m- and p-phenylenediamine, a - and b -naphthylamines; cyclohexylamine, methyl cyclohexylamine; hydrazine hydrate; quaternary ammonium hydroxides; sodium, potassium and ammonium hydroxides and carbonates; sodium and potassium acetates and di- and tri-sodium phosphates.  The basic compound may be added to the interpolymer by mixing on rolls; by dissolving in solvents, e.g. dioxane and dioxolane; by mixing aqueous dispersions; or by dipping the interpolymer in a solution of the basic compound. Fillers, pigments, dyes and plasticisers may be incorporated in the products which may be used for making films and moulded articles.  In examples: (III) an ethylene/carbon monoxide interpolymer is milled with wood flour and methanol and wetted with a solution of m-phenylenediamine in ethyl alcohol; (V) a film cast from a chloroform solution of a propylene/ethylene/carbon monoxide interpolymer is soaked in an aqueous solution of ethylamine and heated at 100 DEG  C.; (VII) a solution of piperazine in alcohol is added on warm rubber rolls to a propylene/ethylene/carbon monoxide interpolymer.  The preparation of suitable interpolymers is described.  Specifications 583,172 and 583,174 are referred to.
Patent GB-130426-A (GB)
Title: Improvements in or relating to the Gyroscopic Steering Mechanism of Automobile Torpedoes.
IPC: F42B19/06
Filed: 1918-02-21
Abstract: 130,426. Whitehead Torpedo Works, Ltd., and Lees, E. Feb. 21, 1918. Addition to 126,689. Counters with reducing-gear; transfer mechanism.-Relates to gyroscopic steering-devices in which the gyroscope forms a single unit with indicating and setting devices as described in the parent Specification, and consists (1) in connecting the minutes dial E directly to the inner frame B<1> of the gyroscope, thereby avoiding the countershaft and small pinion of the con struction described in the parent Specification, (2) in making the inner frame B<1> with a partition e' for carrying the centre b of the gyroscope B, and (3) in arranging the cover A<1> against two water-tight circular joints M, m. In this arrangement the toothed ring D<2> on the eccentric D' adjusted by a key fitted to the socket S is in mesh with a toothed ring C<6> secured to the fixed frame C<2>, and with a toothed ring B<2> secured to the inner frame B<1>. The number of teeth on the rings C<2>, B<2> differ by a small number as the teeth of the corresponding rings in the original construction.
Patent GB-555987-A (GB)
Title: Improvements relating to windows for motor vehicles and the like and their operation
IPC: B60J1/14
Filed: 1942-03-11
Abstract: 555,987. Valves. TRICO PRODUCTS CORPORATION. March 11, 1942, No. 3230. Convention date, March 13, 1941. [Class 135] [Also in Groups X and XXIV] A window for a motor vehicle is pivoted for up and down movement about a horizontal axis, and is operated by fluid pressure or suction such as a vacuum tank or suction from the inlet manifold of the vehicle's engine, the pressure being transmitted by valves to the piston of a fluid pressure cylinder. A window 13 is mounted on a channel bar 15 pivoted at 16 to a door, and counterbalanced by a spring 17. The piston rod 31 of a cylinder 29 is pivoted at 26 to the carrier bar, and tubes 45, 46 pass to each end of the cylinder and are connected through valves 47, 48 with a tube 49 leading to a vacuum tank or the intake of the vehicle's engine. Thus by suitable operation of the valves 47, 48 the window is raised or lowered. Similar mechanism is employed for operation of rear window 14. The piston is locked in the cylinder to prevent movement of the window other than by the pneumatic means. A member 32, Fig. 2, of the piston is rigid with the rod 31, and has secured to it a cup leather 33. The other face of the piston, including cup leather 34, is secured to a pair of lock members 37 between which and sloping surfaces 43 on the member 32 are rollers 42. If piston rod 31 is pressed to the right, the left face of the piston is advanced towards the right compressing a weak spring 36 and, due to inclined surfaces 41 and 43, the rollers 42 press the lock members 37 against the cylinder and lock the piston. The valves 47, 48 controlling the fluid flow through ducts 45, 46 are formed in a unit, with nipples 85, 86 for connections to opposite ends of the operative cylinder, and with a nipple 87 leading to the suction conduit 49. Cylinder ports 89, 91 communicating with nipples 85, 86, and ports 92, 93 communicating with nipple 87 open into valve seat 88. A valve member 95 is operated by button 101, and has a lug 106 bearing on a plate 107 between which and a perforated closure 108 is a felt pad 109. A recess 110 in the valve member 95 as shown opens communication between ports 89 and 92, but with the button pressed inwards, port 92 is closed, and port 89 opened to the atmosphere, air entering the tube 45 through perforated closure 108, felt 109, port 89 and nipple 85. A valve member 111 similar to member 95 controls ports 91, 93, and is operated by push button 120. Thus, by pressing the upper button 101, the window is moved towards the closed position, and is opened by pressing the lower button. In a modified window, the glass may be circular and pointed at its centre. Specification 549,169, [Group X], is referred to.
Patent GB-1509511-A (GB)
Title: Hydraulic system
IPC: B21B31/32
Filed: 1977-02-15
Abstract: 1509511 Hydraulic control circuits DAVYLOEWY Ltd 15 Feb 1977 [28 Jan 1976 7 June 1976] 03328/76 and 23389/76 Heading F1P An accumulator 21, which is arranged close to an actuator 12, has means for rapidly increasing its volume so that the actuator may be vented rapidly into it. The space below a piston 22 in the accumulator is pressurized by compressed air through a line 23 and a valve 24. When a valve 15 is moved into its left position to vent the actuator 12, the valve 24 vents the chamber in the accumulator so that liquid may be rapidly discharged from the actuator into the accumulator through a line 16. The drawing accompanying Specification 1509511 Cog shows an embodiment in which a piston 4A in the accumulator is held in the position shown by an actuator 5. The latter is operated by hydraulic pressure from a line 17. When a valve 10 is operated to discharge the actuator 1, a valve 8 is also operated to cause the piston 5A of the actuator 5 to descend, so that liquid from the actuator 1 may be quickly discharged into the accumulator 4. The actuators 12, 1 are described as being hydraulic capsules in a rolling mill.
Patent GB-113837-A (GB)
Title: Improvements in and relating to the Manufacture of Valves.
Inventor: INSULL MARTIN JOHN
IPC: B23K11/00
Filed: 1917-03-08
Abstract: 113,837. Insull, M. J. March 8, 1917. Valves especially adapted for internal-combustion engines consist of a head of tungsten steel fused or otherwise united to a stem of carbon steel or the like. The steel preferred contains, besides iron, 0.58 per cent carbon, 0.01 per cent phosphorus, a trace of manganese, 0.22 per cent silicon, 17.1 per cent tungsten, 4.5 per cent chromium, 0.2 per cent nickel, and 1 per cent vanadium. The process described consists in attaching the carbon steel stem to the disk or head of tungsten steel by melting and mixing portions of each at the point of union bv passing a powerful electric current through the contact between the tungsten steel and the carbon steel and feeding the two parts together under a pressure of several hundred pounds until a quantity of tungsten steel is heated to its melting temperature. The valve head, first formed as a cup-shaped disk 2, is placed upon a massive copper electrode 3, making contact only at the periphery. so that the current flows radially at first and pre-heats the disk to prevent its cracking. The stem 4 is embraced by a similar electrode 5, as shown; the parts are then enclosed, as shown at 6, and the enclosure filled with hydrogen or other inert gas. On passing the current, the disk, after being brought to red heat, is pushed into central contact with the lower electrode so that the current passes directly through the parts to be welded. The electrodes conduct away heat sufficiently to prevent the disk from being burnt through and the carbon steel stem from being vaporized. A collar 1, formed at the junction, serves to enclose somewhat the molten parts of the two metals and thereby facilitates the union. The valve is then annealed in charcoal. After being turned in a lathe, the valve is treated so as to obtain a hardened head whilst retaining a soft stem. This is effected by enclosing the heated valve in a box packed with asbestos so as to leave the periphery exposed. The box and valve are then rapidly rotated between centres and a blast of cold air directed against the periphery of the disk. The valve is subsequently tempered, and brought to the finished state by grinding.
Patent GB-705005-A (GB)
Title: Method of bonding of polytetrafluorethylene to metal
Inventor: LENNOX JAMES WILLIAM
IPC: B32B15/08
Filed: 1952-02-08
Abstract: A method of bonding polytetrafluorethylene to metal consists in bringing a layer of polytetrafluorethylene in powder form into contact with a sintered or unsintered compact of the metal and compressing and heating at a temperature below the decomposition temperature of the polytetrafluorethylene to sinter any unsintered powder and to cause a part only of the layer to penetrate into the metal.  Iron or bronze powder of 30 B.S.S.-100 B.S.S. is sintered into discs and the discs subjected to 500-1000 lbs./sq. in. at 350 DEG C. for 1 hr. with a layer of extruded p.t.f.e. between them. Alternatively, the discs may be sintered from a compressed double layer of 200 B.S.S. powder and 30 B.S.S. powder.  The p.t.f.e. may be in the form of a powder compact and heated for 1 1/2 hrs. at 360 DEG C.  Oil or water quenching may be employed.  In a further example, iron powder disc compacts of 100-200 B.S.S. size are sintered in a protective atmosphere at 1100-1130 DEG C. for 1/2 hr.  P.t.f.e. powder is placed between the discs and compressed at 1 ton/sq. in. The assembly is the heated to 360 DEG C. for 1 hr. and finally cooled under pressure by water or air.  The method may be used to bond a plug of p.t.f.e. in a cylinder.  The bonded material may be used for electrical components and tong-tips.  The p.t.f.e. may contain a filler such as metal.  Specifications 544,969, [Group II], 583,418, [Group IV], 657,080 and 657,085, [both in Group XXXIV], are referred to.
Patent GB-510610-A (GB)
Title: Improvements in or relating to machines for excavating or moving earth
IPC: E02F3/64
Filed: 1938-02-03
Abstract: 510,610. Excavators. COX, F. R., and TRACTOR TRADERS, Ltd. Feb. 3, 1938, No. 3455. [Class 68 (i)] Relates to a machine for excavating or moving earth wherein a receptacle mounted on a truck &c. has a scraper blade adjacent a front opening and adapted to be brought into contact with the earth to fill the receptacle on advance of the machine, the receptacle having a transverse tail gate adapted to be drawn forward to expel the earth and to be returned by a spring or springs, and consists in carrying said tail gate by roller carriages running on tracks on the sides of the receptacle and arranging the spring or springs along the sides of a receptacle to act between parts secured to or formed on the receptacle and carriages. The receptacle 10 is pivoted on a rear axle carrying two pairs of wheels 17 and is pivoted at 18 to a front carriage 27 slidably connected by a sheave box 25 and roller 21 to a rod 22 pivoted above the receptacle. A scraper blade 28 is provided in the base of the receptacle and an apron 30, pivoted at 32, is adapted to form a front closure. The tail gate 33 is secured by braces 35 to carriages 34 provided with rollers 39, 44, 46, 51, running on the top, bottom and sides of rectangular housings 36 on the side walls of the receptacle; the housings contain one or more helical springs 38 and a plate 47 extends from each carriage through a slot 48 in its housing to form a rear abutment for the spring or springs. By means of a cable passing by sheave boxes 64, 25, 24, the receptacle is raised or lowered, while a further cable passing by sheave boxes 63, 55, 53, 52, raises the front apron 30 and advances the tail gate, simultaneously stressing the springs which afterwards return the parts. The cables may be replaced by hydraulic rams. The Provisional Specification states also that the springs may be housed in telescopic tubes.
Patent GB-556114-A (GB)
Title: A new or improved extracting tool, primarily for extracting fence stumps
IPC: B25B27/073
Filed: 1942-03-17
Abstract: 556,114. Extracting-tools. FERGUSON, C. March 17, 1942, No. 3481. [Class 78 (iv)] A tool for extracting stumps, such as fence posts on railings, comprises a block 5 through which extends a vertical hole 6 which takes over the stump 7 to be drawn. Diametrically opposed slots 10 in the block 5 house serrated gripping cams 11 pivoted at 12 and fitted with handles 13 whereby they may be brought into gripping contact with the stump 7, the grip being automatically increased when the block rises. Pivoted at 15 to the front and back sides of the block 5 are two cams or eccentrics 14 which can be turned by handles 16 so as to react against the foundation 9 in which the stump 7 is embedded, and drag the stump out. The handles 16 extend in opposite directions, so that when both are brought upward simultaneously the cams 14 turn in different senses. The handles 16 may be detachable and adjustable, a hole in the handle end taking over a pin 22 extending from the centre of the cam, and a pin 23 near the end entering any one of a series of orifices 24 in the cam. A bolster 17 may be interposed bteween the cams 14 and the base 9, this bolster having a.vertical hole 18 to take over the stump and a washer 19 orificed to fit the stump. At the bottom a hardened ring 20 has a knife edge 21 which engages the base 9 around the stump.
Patent GB-705456-A (GB)
Title: Improvements in or relating to a method of repairing cracked metals
IPC: F16B5/06
Filed: 1952-02-11
Abstract: 705,456. Repairing defective metal articles. HARMAN, H. W. Feb. 11, 1952, No. 3540/52. Class 83,(1). [Also in Group XXV]  A method of repairing  cracked metal such . as cylinder block castings comprises obliterating the crack by cutting out a slot longitudinally of the crack and inserting or driving into the slot a strip of ductile meta having a length and width slightly larger than the length and width of the slot and having a thickness sub stantially equal to or slightly larger than the breadth of the slot. A cylinder block 20 has a crack 25 extending be tween the cylinder 21 and valve chamber 23. The crack is removed by cutting a slot 26 with a saw or an abrading wheel. After inserting a strip 30 in the slot the protruding edges are ground until they extend only a few thousandths, of an inch beyond the walls of the slot after which the edges are peened by hammering. The sections of the block are locked across the'crack by a pin 34 having two'or more bulged portions 35. This pin is inserted in a recess extending transversely of the strip and shaped by drilling to conform with the bulged portions of the pin A number of locking pins may be used and these may be'superimposed on each other to strengthen the locking.
Patent GB-926601-A (GB)
Title: A memory unit using negative resistance element
IPC: G11C11/38
Filed: 1961-01-31
Abstract: 926,601. Tunnel diode switching circuits. KOGYOGIJUTSUIN-CHO. Jan. 31, 1961 [Feb. 3, 1960], No. 3601/61. Class 40 (6). [Also in Group XIX] A storage matrix consists of elements each comprising a tunnel diode TD and a resistance R series connected across the intersections of row data input conductors x 1  to X n  and column conductors y 1  to y m , the memory elements of each row of the matrix being connected to a read amplifier through diodes D. Read out is by the application of a pulse to the desired one of the conductors y tending to drive the tunnel diodes of that column to one of their stable states. If not already in that state a voltage appears at the associated read amplifier. Writing is by pulsing a column conductor simultaneously with data signals on the row conductors. The diodes D are normally disconnected by a bias current at the terminals S 1  to S n .
Patent GB-588582-A (GB)
Title: Improvements in means for preventing the theft of cycles
IPC: B62H5/14
Filed: 1944-04-27
Abstract: 588,582. Locking cycle wheels. BUTT, H. A. G., and WRIGHT, H. CLAYTON-. April 27, 1944, No. 3662/45. Divided out of 588,557. [Class 79 (iii)] Means for preventing the theft'of cycles comprises a stirrup or U-shaped member which is pivoted to the cycle frame and can be divided and passed round a wheel rim, the divided parts then being locked together by a padlock or like locking device. A pair of levers 3 forming a stirrup are pivoted to the bracket 1 secured by a set screw 5. The levers have their ends turned inwardly so that they can be sprung round the wheel rim A and secured by a padlock 6, as shown in dotted lines. In the locked position the levers 3 cover the set screw 5. The levers 3 are left in their inoperative position as shown in full lines by padlocking them to the bracket 10.
Patent GB-370547-A (GB)
Title: Improvements in electric signalling, indicating, or controlling systems for railways or the like
IPC: B61L13/04
Filed: 1931-02-05
Abstract: 370,547. Railway signalling systems. SIEMENS & GENERAL ELECTRIC RAILWAY SIGNAL CO., Ltd. and EDMONDS, C. H. W., Caxton House, Tothill Street, London. Feb. 5, 1931, Nos. 3664 and 12673. [Class 105.] A railway signal- 1 i n g system comprises means on the track at the entrance to each section to put the signal to danger when the front of the train and even if only the front of the train enters the section, and at the exit end of the section a non-contacting device on the track responsive to the passage of the end carriage of the train, the two devices so cooperating that the signal is returned to " clear " when the end carriage passes the exit end. In the arrangement shown, a signal control relay 18 is held over a stick circuit which includes a contact 17 of a track relay 16 provided in a short entrance section 15 to the block section which for the remainder of its length may be provided with steel sleepers. The signal control relay is picked up over a contact 11 which is momentarily closed when a magnet on the end carriage of the train passes over track collector ramps at the exit end of the block section and deflects a polarized armature of this device. The entrance of the front portion of a train by dropping the contact 17 of the track relay 16 will de-energize the signal control relay 18 the contact 20 of which opens to put the signal 21 to danger. The signal control relay 18 can only be picked up and the signal 21 again put to clear when the end carriage passing out of the section momentarily closes the contact 11 ; the relay 18 is then maintained energized over its own contact 19 and track relay contact 17 which was closed as soon as the train had passed the short entrance section of the block. The exit device may alternatively be a light-sensitive device and the entrance device may be a treadle switch. The apparatus on the end carriage may be required to be fitted to the brake pipe to ensure that the equipment is complete before the train starts.
Patent GB-229848-A (GB)
Title: Improved apparatus for use in covering cardboard and like boxes
IPC: B31B15/00
Filed: 1924-02-13
Abstract: 229,848. Bishop, E. L. Feb. 13, 1924. Machines for covering boxes. In a machine for covering boxes in which the box is supported along at least two of its walls in an angle-shaped carrier and a laterally-movable element is employed to turn over the covering-paper inside the box, the covering-paper is simultaneously turned over two adjacent walls of the box so that the entire covering is performed in two separate operations. The angle or L-shaped carrier 1 has an adjustable end web 2 against which the base of the box is placed and the edge of the covering- paper attached to the sides of the box is turned over two edges thereof by projecting fingers 12, or brushes &c. carried by an angle or L-shaped member 11 slidably mounted on the machine frame 15; the carrier has a depending frame 6 slidably mounted in guides 7 arranged at an angle, of 45‹ to the frame 15 and carrier 1. The member 11 is actuated by an eccentric pin 17 and slotted arm 18 &c. from the shaft 16 to give a period of rest when the fingers 12 are at the end of their inward movement and during this period the frame 6 and carrier 1 are reciprocated from a cam 22 on the shaft 16 to press and seal the inturned edges of the covering in position. The carrier has an inset rubber edging 5 and a grooved L-shaped frame 9 fixed adjacent the edging automatically cleans the fingers 12 as they pass over the frame. The carrier may be stationary.
Patent GB-607636-A (GB)
Title: Improvements in refrigerating apparatus
IPC: F25D31/00
Filed: 1946-02-06
Abstract: 607,636. Refrigerating. STONE, A. J. Feb. 6, 1946, No. 3729. Convention date, Feb 21, 1945. [Class 29] Plate apparatus for quick freezing comprises stationary refrigerated plates 14 alternating with movable refrigerated plates 21 spring-pressed towards the fixed plates by springs 23 on rods 16, the plates being moved apart for leading the freezer by a lifting jack above the casing. The fixed plates are mounted between angle irons 13 having holes through which the rods 16 slide, there being a rod at each corner of the plates. The movable plates are supported by nuts 22 on the rods and the springs 23 are interposed between the movable plates and the angle irons. The goods are placed in trays 30 loaded through doors when the movable plates are raised; release of the jack allows the springs to compress the goods in the trays. The fixed plates are connected by refrigerant pipes 24 at alternate ends, and the movable plates are connected by inclined flexible pipes 27.
Patent GB-650467-A (GB)
Title: Improvements in or relating to the preparation of filling materials for foundry moulds
IPC: B22C9/04
Filed: 1948-02-09
Abstract: 650,467. Mould materials. REGIE NATIONALE DES USINES RENAULT. Feb. 9, 1948, No. 3735. Convention date, May 19, 1947. [A Specification was laid open to inspection under Sect. 91 of the Acts, Sept. 7, 1948.] [Class 83 (i)] The material for making a mould as in Specification 650,466 is made by mixing dry screened refractory fire clay with pulverulent refractory aluminous cement, setting with water, calcining at 900‹ C., disintegrating and screening. This process may include the steps of making a mould and casting as in the Specification and moulds made from said material and baked only require to be mechanically disintegrated and screened to be ready for re-use. 6 to 30 per cent of the cement, free from iron, and with little or no silica, may be used. Examples of suitable cements contain Si0 2  10 per cent, Al 2 0 3  50 per cent and CaO 40 per cent or CaO 38 per cent and Al 2 0 3  62 per cent or CaO 25 per cent and Al 2 0 3  75 per cent.