baber/WOPTO huggingface dataset:
Patent GB-772174-A (GB)
Title: The manufacture of trialkylaluminium compounds
IPC: C07F5/06
Filed: 1953-05-12
Abstract: Aluminium trialkyls are prepared by heating an alkylaluminium halide of the general formula AlX2Y, wherein X represents an alkyl radical and Y represents a halogen or vice versa, or a mixture thereof, with a finely divided magnesium or magnesium-aluminium alloy at a temperature up to 180 DEG  C.  Alloys having the approximate composition Mg3Al2 to Mg2Al, i.e., alloys containing approximately 57 to 65 per cent of magnesium and from 43 to 35 per cent of aluminium are particularly useful.  A dialkylaluminium halide used in the above process may be prepared by reacting an alkyl halide with an aluminium-magnesium alloy containing approximately 70 per cent aluminium and 30 per cent magnesium, and a mixture of a monoalkylaluminium dihalide and a dialkylaluminium monohalide used in the above process may be prepared by the reaction of aluminium with an alkyl halide-the aluminium used in this modification of the process may be obtained wholly or in part from the reaction product resulting from a previous reaction of a mixture of alkylaluminium halides with magmesium or magnesium-aluminium alloy referred to above.  In the example, triethylaluminium is prepared by reacting diethylaluminium chloride and an alloy of the composition Mg3Al2. Specification 767,400 is referred to.
Patent GB-1303124-A (GB)
IPC: A63J21/00
Filed: 1970-03-19
Abstract: 1303124 Electro-physical measurement - dimensions MESSER GRIESHEIM GmbH 19 March 1970 [19 March 1969] 13334/70 Heading G1N [Also in Division G3] In a capacitance probe for measuring the distance of e.g. a plasma-torch above the edge of a work-piece (forming the earth electrode), the probe is split into a plurality of electrodes connected to a circuit to DETECT AND PASS ON the HIGHEST capacitance VALUE, (thereby ignoring false readings from electrodes over the edge). This maximum value is used to control the torch positioning servomotor. Fig.1 provides continuous measurement and control. Electrodes 1..4 tune oscillators 6.. 9 connected to discriminators 10..13. Relative signal magnitudes of the pairs 1, 2, and 3, 4 are determined by comparators 18, 19 energizing polarity sensitive relays 20, 21. The relative magnitude of the two signals thus passed on is determined by a similar comparator relay circuit energise the distance controlling servomotor 30. Alternatively Fig.2 provides sequential testing of the electrodes and a timed control period. A counter 114 sequentially pulses oscillators 6'.. 9' connected in parallel to a discriminator 110 whose output is fed into a peak-value-store 113. The sixth count triggers flip-flop 117 to throw switch 112 so that the next cycle of oscillator/discriminator outputs is fed to comparator 119, to find the maximum signal equal to the stored peak. This triggers monostable circuit 122 to stop the counter and feed the maximum signal to the servo-system 29, 30 for a time depending on the constant of the monostable circuit after which the above cycles are repeated.
Patent GB-697079-A (GB)
Title: Improvements in or relating to electric converters embodying electron discharge devices
IPC: B23K11/24
Filed: 1952-05-27
Abstract: 697,079. Converting. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. May 27, 1952 [July 2, 1951], No. 13404/52. Class 38 (ii). A welding load M is supplied from a polyphase supply L1, L2, L3 with single phase A.C. of lower frequency through a circuit comprising discharge-type converters, e.g. ignitrons oI-6I with control circuits energized from the polyphase supply through a compound transformer CT whose output from secondary windings 7S-9S connected in open polygon has a frequency which is that of the harmonic of the supply frequency having an order equal to the number of phases of the polyphase supply. By the use of the transformer CT which has star-connected primary windings 7P-9P, the circuit complications resulting from separate control transformers for each ignition are avoided. The output of transformer CT which has a frequency three times that of the threephase supply, passes through a phase shift circuit comprising capacitors 15, 17 and resistors 13, 19, and then through transformer Z and energizes the primary windings 5P, 6P of transformers 1FT, 2FT. To accentuate the third harmonic transformer CT may have a saturable core. Current of the higher frequency is applied from the secondary windings 1S, 3S, 5S and 2S, 4S, 6S to the control electrodes of the valves IT, 3T, 5T and 2T, 4T, 6T, which fire when the electrodes receive the first of the harmonic frequency positive voltage half-waves occuring each half-cycle the anode is made positive. Firing of the control valves 1T-6T impulses their associated ignitrons 1I-6I which are connected in back-to-back pairs to supply three primary windings 1P, 2P, 3P of welding transformer M. The firing of the control valves 1T-6T and consequently the frequency of the welding current, is controlled by controller FN which provides one or more pulses each lasting a half period of the supply frequency alternately to transformers IF, 2F. These pulses charge up condensers IC, 2C and fire valves 1V, 2V to allow passage of the higher frequency current through windings 5P, 6P. Duration of such passage is determined by the ratio of discharge of condensers IC, 2C through their associated resistors 7R, 8R and the number of consecutive pulses they receive from controller FN.
Patent GB-1060312-A (GB)
Title: Adaptors for the base connection of capless electric lamps
Inventor: WRIGHT JOHN WILLOUGHBY THOMAS
IPC: H01R33/09
Filed: 1963-04-04
Abstract: 1,060,312. Lamp caps and holders. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. March 4, 1964 [April 4, 1963], No. 13427/63. Heading H2E. An adaptor for connecting capless lamps to sockets suitable for capped lamps has a body of insulating material 3 containing resilient contacts 7 which engage the capless lamp base and which are connected to the external terminals 5 by internal connections 8. An extension, shown dotted in Fig. 1, may be provided to further locate the lamp in the adaptor.
Patent GB-114393-A (GB)
Title: Improvements in the Warp Delivering Mechanism of Looms for Weaving.
Inventor: ANGUS WILLIAM MATHWIN
IPC: D03D41/00
Filed: 1917-09-19
Abstract: 114,393. Angus, W. M., and Lunney, G. Sept. 19, 1917. Letting-off warps.-The warps are delivered to the loom by three rollers, which are geared together and are driven positively. As shown, the warps are gripped against rollers E, G by a roller F, which is preferably covered with rubber &c. The rollers are rotated from a ratchet-operated wormshaft Q through a worm R, a worm-wheel S on a shaft T, and geared .wheels. The rate of let-off may be varied by changing the gear-wheel on the shaft of the roller G. A hand-wheel X is provided for turning back the worm-shaft when required.
Patent GB-576587-A (GB)
Title: Improvement in hydraulic coupling
IPC: F16D33/04
Filed: 1943-08-18
Abstract: 576,587. Hydraulic couplings. CLEVELAND, F. J. (Hydraulic Brake Co.). Aug. 18, 1943, No. 13480. [Class 69 (ii)] The impeller 30 of a hydraulic coupling rotates with the driving shaft 12 and is axially movable thereon towards the runner 58 upon increase in resistance to rotation of the impeller, and away from the runner when the latter overruns the impeller. The impeller is supported on a screw-thread 22 on the driving shaft and normally pressed away from the runner, carried by the driven shaft 50, by springs 46. A housing 66 carried by the runner encloses the impeller and has a liquid seal engagement 70 with the driving shaft.
Patent GB-271487-A (GB)
Title: Improvements in and relating to electric circuit control apparatus
IPC: G05B11/01
Filed: 1927-05-19
Abstract: 271,487. British Thomson-Houston Co., Ltd., (Assignees of Alexanderson, E. F. W., and Mittag, A. H.). May 20, 1926, [Convention date]. Protective arrangements; switches, depending on the ionization of gas. Electron discharge devices are used to control the connections between two circuits, and to disconnect the circuits upon overload conditions. The A.C. supply 3, Fig. 1, is connected to the load circuit 4 through mercury arc devices 1, 2, the anode 5 and cathode 17 being connected to the supply 3 and the cathode 6 and anode 16 being connected to the load 4. Connection is effected by momentarily closing a switch 31 thereby impressing on a resistor 26 connected in series with a reactor 27 a potential about 20 degrees out of phase with the supply. This potential is impressed by a transformer 12 upon the grids 8, 18 in addition to a normal negative bias due to batteries 10, 20. Thus during the part of the cycle when the anode first becomes positive,the grid is also positive and the device 1 or 2 conducts, and continues to conduct until the anode becomes negative, at which time the grid is also negative. Once conduction is started, the switch 31 is opened, and the switch 7, if one is provided, is closed. Upon the occurrence of excess current in the circuit, a voltage is impressed upon a resistor 28 by a current transformer 29 in opposition to that across the resistor 26, thereupon no alternating potential is applied to the grids which consequently remain negative; thus each device 1, 2 ceases to conduct when the anode becomes negative and does not resume conduction when the anode becomes positive again. The Specification as open to inspection under Sect. 91 (3) (a) comprises also a modification in which DC supply 33, Fig. 3 (Cancelled), is connected to a load circuit 34 through a mercury arc device 35. Current is started by closing switch 52 to connect anode 32 to the circuit 34, and by closing switch 52 to the right so as to impose a positive potential on the grid 43 from battery 53. Thereafter, switch 50 is closed to shunt a resistor 51 and switch 52 is opened leaving a negative bias on the grid 43 due to battery 46, the bias being incapable of stopping the current once it has started. A condenser 41 is charged to full line voltage through a resistor 40. In order to stop the current, a second grid 42 is made positive, thus transferring the arc from the anode 39 to a second anode 38, there being a transfer of current through the condenser 41. The grid 41 is made positive either by closing the switch 52 to the left or by the closure of an overload relay 57 due to a gradual increase of current, or by a positive bias induced in a transformer 55 upon sudden increase of current, such as occurs in the case of a short circuit. This subject-matter does not appear in the Specification as accepted.
Patent GB-271495-A (GB)
Title: Improvements in or relating to cartons of the reclosing type
IPC: B65D5/70
Filed: 1927-05-19
Abstract: 271,495. Fort Orange Paper Co., (Assignees of Metzger, H. L.). May 20, 1926, [Convention date]. Lids; powder distributers. - The outermost end-closing flap 14 of a sealed box or carton is provided with weakened lines defining a hinged member or lid 19, the immediately adjacent flap 13 being provided with an adhesive-repellent coating 20 over an area corresponding to that of the member 19 and having a perforated rectangular area 18 disposed over cut-away portions 15, 16 in the two underlying flaps 11, 12. When it is desired to first use the contents of the box the member 19 is separated from the flap 14 and hinged back and the portion 18 of the flap 13 is removed: the contents may then be removed through the opening 15, 16 or the flanges 22 of the member 19 may be folded at right-angles to the main portion thereof, the member then constituting a spout by which the contents may be poured from the box. The box is reclosed and the member 19 secured in position by inserting the flanges 22 in the openings in the flaps 11. 12, 13.
Patent GB-558839-A (GB)
Title: Improvements in operating gear for overhead valves of internal combustion engines
IPC: F01L1/12
Filed: 1942-09-28
Abstract: 558,839. Valve gear. VILLIERS ENGINEERING CO., Ltd., and ANSTEY, F. Sept. 28, 1942, No. 13584. [Class 7 (vi)] Relates to operating gear for overhead valves for multi-cylinder engines with parallel cylinders, in which both valves for each cylinder are operated through rockers on the cylinder head, the rockers being operated by substantially vertical push rods. According to the invention, the camshaft M is arranged longitudinally at one side of the engine and operates the vertical push rod K for that side directly with or without the interposition of a tappet or slipper k and the vertical push rod Q for the other side is operated by a bottom rocker P operatively connected to the camshaft M by a horizontal push rod &c. N mounted in a guide n. The camshaft M, bottom rockers P and horizontal rods N are located inside the crankcase B.
Patent GB-789948-A (GB)
Title: Improvements in or relating to footwear
IPC: A43B3/12
Filed: 1956-05-02
Abstract: 789,948. Sandals. SCHOLL MANUFACTURING CO., Ltd. May 2, 1956 [May 3, 1955], No. 13607/56. Class 17(2) A sandal comprises an outsole 1, insole 2 and straps 4, 5, 11, 12 which are passed through slots in the insole and out-turned between it and the outsole 1 to be secured by a line of stitching 3 joining them. A heel 17 is provided extending forward on the inside at 19 where a wedge may be inerted between the heel and sole to raise the edge. The heel seat is made concave at 16 by grinding away the upper surface of the outsole 1. A metal shank stiffener 20 may be provided and arched to support the foot arch.
Patent GB-579098-A (GB)
Title: Refractories
IPC: C04B35/043
Filed: 1944-07-17
Abstract: In a refractory composition, synthetic crystalline magnesium orthosilicate is formed in the interstices between the grains of an acid, basic, or neutral refractory material, e.g. silica, magnesia, or chrome ore, by the interaction of finely-divided magnesia and silica.  The magnesia in the magnesia-silica mixture may be slightly in excess of the amount required for correct synthesis of the magnesium orthosilicate in order to correct impurities in the other materials.  The basic refractory material is ground to less than 4.0 mm. size, and dust below 0.1 mm., and preferably below 1.0 mm. is removed.  The magnesium orthosilicate components should either or both be of amorphous nature and of particle-sizes of 0.01-0.005 mm. for the magnesia and 0.002-0.0005 mm. for the silica.  The magnesia is preferably that collected by electrostatic precipitation from the flue gases from the production of dead-burned magnesite, while the silica may be that obtained from the exhaust gases produced in the production of ferro-silicon by the reduction of quartz by carbon in the presence of steel scrap, or by the reoxidation of silicon vapour obtained in the reduction of silica by carbon at high temperatures. The mixture of the components of the composition is pressed to shape, air-dried and heated to remove moisture and, if necessary, to dehydrate any hydrated magnesium silicates in the material, and then heated to the temperature of reaction of the magnesia and silica but below the point of fusion of the components.  According to examples: (a) 60-85 parts of dead-burned magnesia are mixed with 40-15 parts of the magnesia-silica mixture containing 4 parts of magnesia to 3 of silica, and 1-4 per cent of a temporary binder such as a solution of magnesium sulphate or chloride is added, the mixture being used as a ramming-mixture or being pressed to shape under 1000 or, preferably 5000-10,000 lbs. per square inch and burnt at 1400-1600 DEG  C.; (b) 60-80 parts of olivine rock may be used in place of the magnesia, an excess of magnesia being used with the silica to convert any iron oxide to p  magnesium ferrite; (c) 70-85 parts of chrome ore are used and 4 per cent of kaolin is added to increase crushing strength.  The Specification as open to inspection under Sect. 91 states also that in certain cases an excess of silica may be used in the magnesia-silica mixture.  This statement does not appear in the Specification as accepted.
Patent GB-104836-A (GB)
Title: Improvements in or relating to Projectiles for use in connection with Muzzle Attachments for Fire-arms.
Inventor: VIVEN JEAN
IPC: F42B30/04
Filed: 1916-09-26
Abstract: 104,836. Viven, J., and Bessiere, G. Sept. 26, 1916. Addition to 100,700. Projectiles; projectile fuses.-Relates to projectiles intended mainly to be discharged from a muzzle socket on a rifle by the passage of a bullet through a hole in the projectile as described in the parent Specification, and consists in adding to such projectiles (1) means for igniting the timefuse when the projectile is thrown by hand, (2) means for igniting the fuse on impact, (3) a shorter time-fuse ignited on discharge from the hand or from a rifle, and (4) means for plugging the hole through the projectile and also igniting the time-fuse when it is desired to discharge the projectile from a rifle by a blank cartridge, instead of by a bullet. In the form shown in Fig. 1, a spring striker 31, normally held at safe by a pin 34 and by a lever 35 locked by a wire 36, is arranged to strike a percussion cap 30 in front of the time-fuse 13 when the grenade 5 is thrown by hand, the pin 34 and wire 36 being previously removed and the lever 35 released a.t the moment of throwing. In the form shown in Fig. 2, the percussion cap 30 is ignited on impact by a firing pin 31 with a hood 40 normally locked by a spring sleeve 41, which is removed before the grenade is thrown or discharged, the firing-pin being still held away from the percussion cap during flight by a spring 33. In the form shown in Fig. 5, a shorter time.fuse 46 is added, adapted to be ignited by a spring striker 47 when, at the moment of discharge, a lever 35 is released from the hand or from the socket at the muzzle of the rifle. The striker carries the percussion cap 30, and the firing-pin 29 is fixed to a plug 48. The lever 35 and the striker 47 are both locked at safe by a double-armed wire 34, which is removed when the grenade is to be used. When it is desired to discharge the grenade from a rifle by means of a blank cartridge, the plug shown in Fig. 4 is inserted from the bottom into the hole 6 extending axially through the grenade, and is held therein by the grip of a spring 43. The gases of explosion of the propellant cartridge drive the shoulder 45 of the plug up against the base of the grenade and thus discharges the grenade from the rifle, and simultaneously the front end 42 of the plug forces a member 15 against a percussion cap 14, igniting the time-fuse 13.
Patent GB-809764-A (GB)
Title: Improved variable-speed power transmission mechanism
IPC: F16H61/70
Filed: 1956-12-12
Abstract: 809,764. Change-speed control. GENERAL MOTORS CORPORATION. Dec. 12, 1956 [Dec. 22, 1955 (2)], No. 13729/58. Divided out of 809,761. Drawings to Specification. Class 80 (2). The subject-matter is the same as that of the main Specification 809,761, but the claims are directed towards the variation in governor pressure in the control of one gear unit caused by shift in the other unit. Specification 809,763 also is referred to.
Patent GB-256352-A (GB)
Title: Improvements relating to lawn mowers
IPC: A01D57/01
Filed: 1925-05-27
Abstract: 256,352. Barraclough, H. May 27, 1925. Lawns, removing rubbish from; lawn-mowers. -A brush for dispersing worm casts and raising grass is adjustably mounted in front of a lawnmower in adjustable brackets carrying supporting- rollers which do not encroach upon the path traversed by the brush. The adjustable brackets A are L-shaped and their horizontal arms each have a short roller B on both sides of it. Each pair of rollers is mounted on a perforated tubular shaft into which lubricating oil is poured through a hole in a boss in which the shaft is fixed. The brush spindle e is mounted in slotted brackets E adjustably connected to the brackets A by screws e'. One end is fitted with a sprocket pinion e<2> which is driven by a chain e<3> from a sprocket wheel e<4> fitted on the threaded end of the cutter spindle d. The sprocket wheel e<4> may be adjusted to run truly by screws e<5>. The brush spindle is prevented from moving endwise by collars or washers and split pins at one end only, so that it may accommodate itself to machines of different widths. The bearings in the brackets E may be formed with convex walls so that the brush spindle may accommodate itself to irregularities. Both the rollers and the brush spindle may be mounted in enclosed ball or roller bearings. Scrapers for the rollers may be provided. The bristles of the brush may be arranged spirally so as to throw worm casts &c. to one side..
Patent GB-143054-A (GB)
Title: Improvements in control levers as used on motor vehicles and the like
IPC: G05G5/18
Filed: 1919-05-31
Abstract: 143,054. Humber, Ltd., and Shorter, L. J. May 31, 1919. Levers; levers, locking.-In brake, speed-gear, and other control levers for use on motor-vehicles &c., the levers, such as A, J, are formed of sheet metal of channel section, the catch-rod E<2> or extension of the catch itself lying within the channel. A slot E<3> in the catch-rod may engage a block H pivoted on a pin G in the lever. The quadrant may pass through a slot in the lever. The catch E<6> may extend laterally from the plane of movement of the lever.
Patent GB-849396-A (GB)
Title: Device for the protection of valuables, particularly cash, while being carried
IPC: A45C13/24
Filed: 1959-04-23
Abstract: 849,396. Identifying burglars. TIMM, H., and MORRIS, J. April 23, 1959 [April 23, 1958], No. 13904/59. Class 5(1). [Also in Groups XXI and XXXVIII] A smoke producing antitheft device comprises a box 1 filled with a smoke producing and colouring powder, placed within a container which is to be carried, and is operated by a detonator which causes the smoke to be released when a pull is exerted on a cable 8 or when the cable is severed. The smoke contains a dye which when released will mark the objects e.g. bank notes, in the container and also the thief. The detonating equipment comprises spark gaps 11 connected via contact 7 to a battery 2. The cable 8 is insulatedly connected to a lever 9 which carries one contact 7 and a pull on the cable will cause the contact 7 to close, completing the detonator circuit. The cable 8 may be in the form of a screened conductor with the outer sheath 22 earthed so that cutting through the cable will connect the inner and outer conductors thus also completing the detonator circuit. A screw 5 bearing on the contact 4 serves as a setting switch, and pilot lamps 6 connected across the battery indicates whether the device is set.