baber/WOPTO huggingface dataset:
Patent GB-1119890-A (GB)
Title: Process for polymerization of ª‡-olefinic hydrocarbon material
IPC: C08F10/00
Filed: 1965-09-28
Abstract: Crystalline polymers having an inherent viscosity in tetralin at 145 DEG  C. of at least 0.1 are made by polymerizing alpha-olefines in the presence of a solid stereospecific catalyst, hydrogen, and a compound that during polymerization, does not polymerize to a solid and is selected from compounds of the formula (1) RCH=CHR, (2) R2C=CHR, or (3) R2C=CH2, where R is an alkyl radical.  The compound may be separated from the polymer after polymerization.  Specified alpha-olefines are ethylene, propylene, butene-1, pentene-1, octene-1, decene-1, 3-methyl-1-butene, 4-methyl - 1 - pentene, 4 - methyl - 1 - hexene, 5 - methyl - 1 - hexene, 4,4 - dimethyl - 1 - pentene, styrene, alpha - methylstyrene, allylcyclohexane, allylcyclopentane, and allylbenzene. Exemplified compounds of the above formula are 2-butene, 2-methyl-1-pentene, 2-heptene, and cis and trans-4-methyl-2-pentene. Exemplified polymers are polyethylene, polypropylene, poly-1-butene, and a copolymer of propylene and 1-butene.  The polymerization conditions are conventional.
Patent GB-988285-A (GB)
Title: An electric circuit breaker for installation in enclosed cubicles
IPC: G05G1/10
Filed: 1962-02-21
Abstract: 988,285. Switchgear structures; switch handles; indicators for switches. LICENTIA PATENT-VERWALTUNGS G.m.b.H. Feb. 21, 1962 [Feb. 21, 1961], No. 6729/62. Heading H2B. The actuating shaft of a horizontally withdrawable circuit breaker 2 mounted in a housing 1 carries two operating handles 8, 9 of different size and shape, the larger 9 being removable. The smaller non-removable handle 8 is shaped to form a part of a circuit diagram 10 (Fig. 2) on the front of the housing 1 so as to indicate the open and closed positions of the circuit breaker. This handle 8 may if necessary be used to open the breaker but is too small to provide the torque necessary to close it. The breaker can only be closed by fitting the handle 9.
Patent GB-356230-A (GB)
Title: Improvements in automatic guns
IPC: F41A21/36
Filed: 1930-02-28
Abstract: 356,230. Automatic guns. AUTOMATIC GUNS, Inc., 924, 17th Street, Washington, U.S.A. Feb. 28, 1930, No. 6765. Convention date, Feb. 28, 1929. [Class 92 (ii).] Relates to gas-operated guns of the type in which the gas-piston 54 moves forwardly to compress a main spring 91 which reacts to unlock the breechbolt 13 and move it rearwardly against the action of a return spring 45. The invention particularly relates to guns of this type in which the locking- block 29 is slidable transversely in the breechbolt away from a fixed shoulder on the receiver by a slotted rod R which is clutched to the gaspiston on the rearward stroke thereof and which, after releasing the breech-bolt and moving it rearwards, is automatically declutched ready for a fresh compression of the main spring. According to the invention the rod R reciprocates in a line parallel with the axis of the gun barrel, and has an inclined slot 74 for conveying transverse movement to the locking-block the momentum of the rod during closing of the breech serving to move the block to locking position. The rear face of the locking-block is wedge-shaped to facilitate locking. The rod R has a forward extension 67 which enters an aperture 65 in a frame 57 carried by the gas piston rod 55 the aperture having spring- controlled catches 66, Fig. 12, for clutching the rod 67, declutching being effected when members 70 engage the stationary casing 61 as the breech-bolt completes its rearward movement. The firing-pin 17 is cocked against an automatic sear 33 during closing movement of the breech-bolt, the sear being released by an extension 31 on the locking-block only when the breech is closed and locked. The cartridge case is extracted by hooks 23, Fig. 4, on the breech-bolt and ejected by spring- pressed members 24 housed in the receiver. The rod R is movable rearwards manually by a handle 79 and is retained in rear position by a hand-sear 81 released by a trigger 85. The return spring 45 is compressed by a sleeve 40 which also engages a buffer-spring 50, the springs being adjusted by rotating a casing.46 by means of a knob 48. The Specification as open to inspection under Sect. 91 (3) (a) also describes (1) the alternative form of firing mechanism shown in Fig. 8, and the hand-operated cocking and releasing means for the firing pin in case of missfire, shown in Fig. 12, of Specification 356,225, (2) the safety device preventing a double-feed of cartridges to the barrel which forms the subject-matter of Specification 356,226, and (3) the muzzle-attachment for diminishing recoil forming the subject-matter of Specification 356,224. This subject-matter does not appear in the Specification as accepted.
Patent GB-253204-A (GB)
Title: Improvements in or relating to foundry moulding machines
IPC: B22C15/10
Filed: 1925-03-13
Abstract: 253,204. Pneumatic Engineering Appliances Co., Ltd., and Hines, L. H. March 13, 1925. Moulding-machines. - In a turn-over gear for the pattern-table of a jarring moulding-machine the gearing is prevented from disengaging while the table is being inverted, but is free to be disengaged during jarring. The table 2 is adapted to oscillate about trunnions 22 and to be raised or lowered by a member 3, which may be the piston-rod of a fluidpressure cylinder or a rack or other rod operated manually or otherwise. The member 3 carries a bracket 4 on which is mounted part of the turn-over gear comprising a worm 6 - operated by a hand-wheel 11, a worm-wheel 7 and a pinion 18. The worm and wheel are in constant engagement and are enclosed in an oil-bath 9. The remainder of the gear comprises a spur-wheel 19 engaging the pinion and secured by bolts 23 to an angle-bracket on the pattern-table 2. The trunnion 22, which is keyed to the wheel 19, is rotatably mounted in a block 21 which slides vertically between horns 20 carried by the bracket 4 and is provided with a casing 25, 26 which partially encloses the gears 18, 19 to exclude so far as possible the entry of sand &c. A plate 28 attached to the bracket 4 closes the bottom of the casing. When the table 2 rests on the jarring- table a further descent of the member 3 separates the gears 18, 19 and simultaneously brings a flatsided collar secured to the worm-shaft 10 into engagement with a fixed stop to prevent rotation of the gear 18 and thus ensure its proper meshing with the gear 19 when it is raised again. After jarring, the member 3 re-engages the gears and lifts the table 2 which is then free to rotate about the trunnion 22. A pin 30 carried by a cross-piece 31 secured to faces 33 on the horns 20 engages a -slot 29 in the end of the trunnion so that as soon as the hand-wheel 11 is rotated the gears are locked in mesh. The slot is continued at 34 in the trunnion-block to allow free vertical movement during jarring. The wheel 19 carries two fixed stops adapted to engage adjustable screws 38 when the table 2 is in a horizontal position, either upright or inverted, and so allow the locking bolts to be shot without further adjustment.
Patent GB-1283165-A (GB)
Title: Method and apparatus for pelletizing synthetic resinous material
Inventor: TOPOLSKI ALVIN STANLEY
IPC: B26D1/38
Filed: 1971-03-15
Abstract: 1283165 Roller mills DOW CHEMICAL CO 15 March 1971 6887/71 Heading B2A [Also in Division B5] Strands of synthetic resin are chopped into pellets by a pair of rotating toothed drums, each drum having shearing teeth arranged to slidingly engage those of the other drum, the engaging face 33 of each tooth being generally radial and defining a relief angle A with the radius of between 0‹ and 30‹, the included angle B between the engaging face 33 and the non-engaging face 34 being between 10‹ and 45‹. Preferably the tip of each tooth has a small flat 35, and the rotation of the drums is synchronised e.g. by arranging that one drum is driven and imparts the rotation to the second to which a braking force is applied to keep the interengaging teeth smoothly meshing. The strands may be fed into the cutting drum from rolls driven by belt and pulley transmission from the first drum, variable speed or variable effective diameter pulleys being used (Fig. 3, not shown). For high-speed operation, especially with small diameter drums, a further roll is placed adjacent to the first cutting drum to bring the strands into close contact with the latter before they are fed around into the nip between the severing teeth. When cutting very viscous materials a mould release composition such as a polysiloxane is applied to the drum surface and when cutting freshly extruded material, or other material at high temperature, the drums are cooled e.g. by a water spray or by air, nitrogen or alcohol. The plastics strands to be pelletized are intended to be soft or rubbery and if hard or brittle material is to be cut it should be heated first, a bending test to categorise the material being given. A detailed dimensioned example of the pelletizing of a blend of 50/50 w/w polytertiary butyl styrene and polyvinyl chloride is described; other exemplary materials are polystyrene (at 245‹F), uncured rubber, plasticized polyvinyl chloride, rubber-modified polystyrene, rubber-modified polymethyl methacrylate and graft polymers of styrene and rubber. Working speeds may be as low as 1 foot per sec. or as high as 2000 ft. per sec.
Patent GB-215891-A (GB)
Title: Improved apparatus for testing sparking plugs
IPC: H01T13/58
Filed: 1923-03-09
Abstract: 215,891. Watts, T. H. J., and Batston, R. M. March 9, 1923. Condenser telephones; ear-pieces. -A device for testing sparking-plugs comprises two or more discs insulated from each other and connected to the opposite sites of a spark gap, the varying difference of potential causing vibration of the discs and producing a sound. In one form, the discs 1, 2 are clamped by their edges in an ebonite casing 3, 4 provided with an earpiece 14, and are separated by an air space and an insulating disc 8. In modifications, one or two discs connected to one side of the spark gap are placed between two discs connected to the other side, the space around the outer discs or that between the inner pair being in communication with the earpiece. This space may also communicate with an air chamber for producing resonance.
Patent GB-1046154-A (GB)
Title: Improvements in or relating to electrical information memories
IPC: H01F10/26
Filed: 1965-02-18
Abstract: 1,046,154. Magnetic storage apparatus. NIPPON ELECTRIC CO. Ltd. Feb. 18, 1965 [Feb. 18, 1964], No. 6992/65. Heading H3B. A magnetic storage matrix comprises a plurality of parallel non-magnetic conductors 12, Fig. 1, each coated with a thin ferromagnetic storage film having a circumferential easy axis of magnetization, the conductors being housed in parallel grooves 13 formed in two thermoplastic sheets 15 which are assembled in faceto-face relationship with their plane surfaces in contact, each sheet carrying slender conductors 11 which extend orthogonally of the coated conductors 12. A thin insulation layer is provided on the inner surface of each sheet. Printed strip conductors 11 spaced at uniform intervals and surface mounted are used as shown, but in a modification, Fig. 2 (not shown), thin wires 21 are embedded in each sheet and are positioned in groups so as to produce distinct local magnetizations along the coated conductors 12 when energized. In the arrangement shown the outer strip conductors 16 serve as driving wires, and the inner strip conductors are connected and provide short-circuit turns about two coated conductors 12 which serve to prevent unwanted magnetic disturbances. Alternatively the outer strip conductors 16 may be joined together and the inner conductors serve as the driving wires, or the short-circuited conductors may be omitted. A complete matrix is described, Fig. 3 (not shown), in which the magnetic coated conductors 12 are connected to terminals 31, 32 printed on a pair of opposed sides of an insulated frame 33, and the ends of the thermoplastic sheets are adhered to the other pair of frame sides. Terminals 36, 37 are provided for the driving wires. The storage matrix in the frame window is shrouded by insulating or non-magnetic-metal plates 39.
Patent GB-1305454-A (GB)
IPC: H01L21/00
Filed: 1970-02-13
Abstract: 1305454 Silicon SCHUNK & EBE GmbH 13 Feb 1970 [13 Feb 1969] 7128/70 Heading C1A In a process for the epitaxy of silicon, a heating and/or support element is used which element comprises a graphite substrate provided with a dense pyrolytically deposited carbon coating. The coating may be hard carbon or pyrographite and may be 5 to 50 Ám. thick. If desired, a silicon carbide coating may be applied to the coating of carbon.
Patent GB-109759-A (GB)
Title: An Improved Axle Construction for Automobile Vehicles.
Inventor: THOMPSON WILLIAM PHILLIPS
IPC: B60B35/12
Filed: 1917-05-18
Abstract: 109,759. Thompson, W. P., (Shurnuff Manufacturing Co.). May 18, 1917. Axles and axle structures.- A packing-device for preventing the escape of oil from the axle casing consists of a cylindrical metal frame 10 with flanges 11, 12 for retaining inner and outer felt packing-rings 13, 14. The packing-rings are compressed between the flanges 11, 12 and metal rings 15, 18. The frame is provided with longitudinal ribs which engage rivets in the axle casing and prevent rotation.
Patent GB-1324313-A (GB)
Title: Ignition circuits for internal combustion engines
IPC: F02P15/12
Filed: 1972-02-16
Abstract: 1324313 Ignition systems MITSUBISHI DENKI K K 16 Feb 1972 [23 Feb 1971] 7164/72 Heading F1B An ignition system for an internal-combustion engine comprises two current paths for applying electric current to an ignition coil 8 one of the paths containing a resistor 7. A switching circuit 9 having a control current input 10 is provided for controlling current through the ignition coil. The control current input is connected to an input terminal 2 of the path containing the resistor and a uni-directional current conducting device 14 is connected between the control current input and the input of the ignition coil whereby control current can be fed from the other path to the switching circuit 9 without passing through the resistor, when starting the engine. A second uni-directional current conducting device (not shown) may be connected between the central current input and the input terminal of the path containing the resistor. As shown, when starting, the switch 5 is turned to connect the contacts 3 and 4 and the starter motor 13 is energized.
Patent GB-642901-A (GB)
Title: Multi-layer heat-insulating material
IPC: B32B27/00
Filed: 1947-03-14
Abstract: 642,901. Compound sheet materials. AKTIEBOLAGET ISOFLEX. March 14, 1947, No. 7171. Convention date, Sept. 6, 1945. Drawings to Specification. [Class 140] [Also in Group XIII] Multilayer heat-insulating material built up from a number of thin foils separated by airfilled or gas-filled spaces uses foils 0.02-0.05 mm. thick made of synthetic resin such as polystyrene, polyvinyl chloride, or a silicone polymer such as methyl silicone polymer and containing a heat-reflecting or heat-absorbing filler. The filler may comprise powders, grains or scales of a metal such as aluminium or a pigment such as graphite.
Patent GB-341765-A (GB)
Title: Method and apparatus for cross cutting wire glass
IPC: C03B33/07
Filed: 1930-03-05
Abstract: 341,765. Cutting wire glass. MISSISSIPI GLASS CO., 220, 5th Avenue, New York, U.S.A.-(Assignees of Aurien, G. and Gutmann, P. F.; 110, Ferry Street, St. Louis, Missouri, U.S.A.) March 5, 1930, No. 7172. Convention date, July 10, 1929. [Class 56.] A method of cutting wire sheet glass when it is made by a continuous process consists in scoring one surface of the glass in a number of closelyspaced parallel lines, breaking the glass along the lines, and then breaking the wires at the fractures. The continuous ribbon of glass, 10, Figs. 1 and 2, moves along a number of rollers 12 mounted in a bench 14, and an operator scores the glass transversely with a diamond in three parallel lines 16 about four inches apart. The glass is broken along the scored lines by a device comprising an upper roller 18 in fixed bearings, and a lower roller 20 which may be raised by a treadle from the position shown in dotted lines in Fig. 2 to that shown in full lines. After the glass is broken, the ribbon continues to move over the rollers 12 until the fracture reaches the breaking device. This comprises two rollers 24, 26 and a breaking- bar 28 arranged between them. The bar is raised by the operator when the middle fractured line is above it, and the pressure of its V-shaped edge acuses the wire embedded in the glass to break at one of the fractures.
Patent GB-558460-A (GB)
Title: Improvements in apparatus for controlling the temperature of a fluid such as the cooling fluid or lubricating oil of an engine
IPC: F01P7/12
Filed: 1942-05-28
Abstract: 558,460. Fluid-pressure servomotor-control systems. NAPIER & SON, Ltd., D., and WALKER, G. E. L: . May 28, 1942, No. 7221. [Class 135] Apparatus for controlling the temperature of a fluid flowing in a circuit such as the cooling fluid or lubricating oil circuits of an internal combustion engine comprises in combination a heat exchanger through which pass both the fluid in the circuit and a. second temperature adjusting fluid, a valve for regulating the flow of this fluid actuated by fluid pressure under the control of an auxiliary valve actuated by a thermo-sensitive element located in the fluid circuit and a floating lever connected at spaced points along its length to the auxiliary valve, the thermosensitive element and a piston moved by hydraulic means when the regulating valve is moved. In the arrangement shown in Fig. 1, the thermosensitive element A is located in the cooling water circuit of an engine B1 which circuit also includes a heat exchanger B<SP>2</SP>. The flow of air through the heat-exchanger is controlled by a hinged valve D actuated by a double-acting piston E<SP>1</SP> working in an oscillating cylinder E. The supply and exhaust of pressure fluid to the cylinder is controlled by a piston valve J connected by a link J<SP>1</SP> to one end of a floating lever O, the other end of which is connected by a rod M<SP>3</SP> to a piston M loaded by a spring M<SP>1</SP> while an intermediate point O<SP>1</SP> is coupled by a rod A<SP>1</SP> with the thermo-sensitive element. As the valve D is moved by the piston E' a second piston N<SP>1</SP> coupled by a rod N<SP>2</SP> to the valve and working in an oscillating cylinder N forces or withdraws liquid from the cylinder L housing the piston M so moving the piston and floating lever to give a follow-up action. Should the piston reach the end of its stroke to the right before the valve D is fully open a projection M<SP>2</SP> unseats a spring- loaded ball valve L<SP>3</SP> to admit additional fluid from the supply conduit K'. Similarly excess movement in the other direction allows fluid to escape to drain through a passage L<SP>2</SP> uncovered by the piston. In the arrangement shown in Fig. 2 the valve D is actuated by a piston E<SP>6</SP> working in cylinder E<SP>5</SP> connected directly to the control valve J by a pipe F<SP>2</SP> and indirectly by a pipe F<SP>3</SP>, cylinder L and restricted passage R. The follow-up piston M housed in the cylinder L is urged towards its mid-position by a pair of springs T, T. The two sides of the piston M are connected through passages L<SP>6</SP>, L<SP>7</SP> fitted with restrictions R, S so that after a regulating operation the springs T, T' can slowly return the piston M to its mid position.
Patent GB-271387-A (GB)
Title: Improvements in and relating to die-casting machines
IPC: B22D17/06
Filed: 1927-03-16
Abstract: 271,387. Injecta Akt.-Ges. Dec. 3, 1926, [Convention date]. Casting-machines; metal-pouring.-In a diecasting machine of the kind having a chamber b which is immersed in a melting-pot a in order to fill it with metal and is then moved to bring its nozzle b<1> into contact with a mould e while compressed air is forced in to eject the metal, the chamber is pivoted on trunnions c near the nozzle so that this is not immersed in the metal. The chamber is moved by hand-operated eccentrics i which engage the edge of the pot a and the metal inlet valve g is closed by a screw h and hand wheel or by means connected to that actuating the eccentrics. The nozzle has an interchangable mouthpiece b<2> and is kept hot by furnace gases passing up the flue d. The mould is pressed against the nozzle by spring-pressure. The air inlet m is kept free from clogging by molten metal by arranging a constriction at p and a baffle at o.
Patent GB-1138815-A (GB)
Title: Phosphonic and thiophosphonic acid derivatives
Inventor: DABRITZ ERICH
IPC: C07F9/6578
Filed: 1966-02-18
Abstract: 1,138,815. Cyclic phosphorus derivatives. FARBENFABRIKEN BAYER A.G. 18 Feb., 1966 [22 Feb., 1965; 5 Oct., 1965], No. 7322/66. Heading C2C. Novel phosphonic and thiophosphonic acid derivatives of the general formula where R is C 1-4  alkyl, cyclohexyl, or aryl, X is oxygen or sulphur and ZH and YH, alike or different, are -OH, -SH, or -NH-alkyl, wherein the alkyl radical contains from 1 to 4 carbon atoms, are prepared by reacting an appropriate phosphonic or thiophosphonic acid dihalide with a 1,2-disubstituted ethane of the formula HY-CH 2 -CH 2 -ZH in an inert, anhydrous organic solvent, optionally in the presence of a tertiary organic base. The reaction temperature is normally from about 0‹ to 150‹ C., preferably from 20‹ to 80‹ C., and the reaction time is from 1 to 12 hours, preferably from 2 to 6 hours. The compounds are useful as catalysts in the conversion of organic isocyanates into carbodiimides, and the preparation of diphenyl carbodiimide from phenyl isocyanate is described.
Patent GB-1298637-A (GB)
Title: Vehicular hydraulic brake system
IPC: B60T8/18
Filed: 1970-02-16
Abstract: 1298637 Dual braking systems NISSAN MOTOR CO Ltd 16 Feb 1970 [22 Feb 1969] 7349/70 Heading F2F In a vehicular dual hydraulic braking system having tandem master cylinders 10b, 10a respectively supplying pressure fluid to rear brakes 13, 13<SP>1</SP> and front brakes 15, 15<SP>1</SP> via two circuits including conduits 12a, 12b and 14, 14a a pressure modulator valve 16 is interposed between the two circuits in which the pressure supplied to the rear brakes through inlet 17 and outlet 18 is equal to the pressure supplied to the front brakes when the pressure at a further inlet 19 is below a predetermined level, above which level the rear brake pressure only is modulated. In the embodiment shown in Fig. 4, inlet 17 and outlet 18 are in communication by way of passage 17a, chamber 34, passages 35a, 35b and 18a when the pressure acting through inlet 19 on a land 38b of a control member 38 is insufficient to overcome a compression spring 39 biasing the member 38 to hold a ball 36 resting on an incline off a seat 41. Above a predetermined acceleration ball 36 rolls up the incline and engages seat 41, member 38 being moved leftwardly under pressure from inlet 19, communication between inlet 17 and the rear brakes being discontinued. Pressure then passes through passages 44, 43a to act on a piston 50 engaging a further piston 51 thereby increasing the pressure at outlet port 18. In a further embodiment the valve comprises a hollow shuttle piston 22, Fig. 2 (not shown), having a land (25) upon which a spring (27) acts to urge the piston in a direction permitting communication between the inlet port 17 and outlet 18, a further land (23) engaging a lip seal (26) when the pressure in outlet 19 which acts on the leading face of piston (22) exceeds a predetermined level to discommunicate ports 17, 18.