baber/WOPTO huggingface dataset:
Patent GB-1109634-A (GB)
Title: Improvements relating to gyroscopic apparatus
Inventor: WHALLEY RONALD
IPC: G01C21/16
Filed: 1966-02-19
Abstract: 1,109,634. Gyroscopic apparatus. FERRANTI Ltd. Feb. 9, 1967 [Feb. 19, 1966], No.7377/66. Heading G1C. A gyro accelerometer for use in a vehicle comprises a rotor 10 carried by inner and outer gimbals 11, 12 respectively, a pick-off 15 to detect angular movement of the inner gimbal 11 about its axis Z, and a mass 14 contained in a cylinder 13 filled with a viscous damping fluid and free to move in a direction perpendicular to the gimbal axes Y and Z. In use the axis Y is aligned with the fore and aft axis of the vehicle and the gyro is used to detect cross-track accelerations i.e. in the direction of the spin axis X. Such accelerations will cause displacement of the mass 14 in the cylinder 13 from its normal central position in which the gimbal system is balanced. The unbalance will cause precession of the inner gimbal due to the force of gravity and this is sensed by the pick-off 15. The precession rate is arranged to be proportional to the cross-track velocity of the vehicle, and the pick-off output is used to correct the vehicle track. In an alternative embodiment the inner gimbal 11 is unbalanced about the Z axis. Cross-track acceleration will then cause the outer gimbal 12 to rotate about the Y axis and this will increase the displacement of the mass 14 and this will produce a pick-off signal giving a control effect tending to return the vehicle to its course with an acceleration proportional to the crosstrack displacement plus a damping term proportional to cross-track velocity. A pendulous float may be employed in place of the mass 14 if desired.
Patent GB-249529-A (GB)
Title: An asparagus bed digging machine with rotating root cutters
IPC: A01B39/14
Filed: 1926-03-17
Abstract: 249,529. Hallermann, A. March 17, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Rakes, horse and traction.-A machine for cultivating asparagus beds and cutting off and collecting together the old asparagus stalks comprises a share c, a rotary cutter d coacting scissor-wise with the share, and a rake or harrow m adapted to be raised periodically. The rake or harrow m is carried by a pivoted rod l oscillated periodically by a pin on the travelling wheel.
Patent GB-507688-A (GB)
Title: Improvements in directional lighting fittings
IPC: F21V5/00
Filed: 1938-03-09
Abstract: 507,688. Street &c. lamps. GENERAL ELECTRIC CO., Ltd., and BEGGS, S. S. March 9, 1938, No. 7390. [Class 75 (iv)] In a street-lighting fittting light, from a source 1 is refracted by curved prisms 2, 3, .. n, in a vertical plane through a range of directions having a common upper limit which is the preferred direction of refraction AA.
Patent GB-135745-A (GB)
Title: Improved Means for Securing Wheels or Pulleys on Shafts or the like.
Inventor: WHITELEY JOE BOOTH
IPC: F16D1/08
Filed: 1919-03-25
Abstract: 135,745. Whiteley, J. B., and Calam, H. March 25, 1919. Securing wheels on shafts.- Wheels and pulleys are secured on shafts, rollers, and drying-cylinders by clamping the shaft &c. between a boss A on the wheel and a segment B pivoted at its end C to the wheel and pressed frictienally on the shaft by bolt D engaging its other end. The bore of the boss may be serrated to increase friction.
Patent GB-104277-A (GB)
Title: Improvements in Air Screw Bosses and their Attachment to Propeller Shafts.
IPC: B64C11/04
Filed: 1916-05-25
Abstract: 104,277. Rudge-Whitworth, Ltd., and Pugh, J. V. May 25, 1916. Screw propellers.-In addition to the end flanges b, c, between which the wooden laminµ a' of screw propellers are usually secured by bolts f, one or more intermediate flanges d, e having tubular portions i, j, are fitted. These portions i, j engage the driving-shaft m by means of complementary ridges and serrations. The end flanges b, c are coned at g, h, the shaft m being correspondingly tapered at n, o. Specifications 18048/11, 21275/11, and 20993/12, [all in Class 144 (i); Wheels &c.], are referred to.
Patent GB-574705-A (GB)
Title: Improvements in and relating to machine guns
IPC: F41A19/67
Filed: 1940-04-26
Abstract: 574,705. Automatic guns. BOULTON PAUL AIRCRAFT, Ltd., FREEMAN, J: O., and COX, J. H. April 26, 1940, No. 7496. [Class 92 (ii)] Apparatus for controlling the number of rounds fired by a machine gun when the firing button is pressed, comprises electromagnetic or electrodynamic control means, the energizing circuit for which includes a normally open firing switch closed by the button and a normally closed control switch opened by a control member when this has moved forward a predetermined number of steps, corresponding to rounds fired, by mechanism operated by the recoil of the gun. The arrangement includes solenoid or oscillating electric motor means for stepping the control member and counting the rounds and similar electric means for resetting the parts. The electric circuit shown in Fig. 6 includes a firing switch 63, a switch 6, 7 operated by the setting knob, a changeover switch 27, 65, 64 for opening and closing the circuit through the coil 58 of the firing solenoid, a resetting solenoid coil 46 and counter solenoid coil 36, and a switch 75 closed by the recoil mechanism. Figs. 1 and 2 show one form of the control apparatus. A knob 3 is pressed to close the switch 6, 7 and rotated to set through a wheel 14 a stop 16'which controls the position occupied by a ratchet control arm 17 under the action of its return spring 19. As firing proceeds, the counter solenoid 36, energized by the recoil-operated switch 75, moves an arm 32 carrying a pawl 22 to feed the arm 17 one tooth at a time under the control of a retaining-pawl 37. When the desired number of rounds have been fired, a pin 24 on the arm 17 engages a sector-arm 23 to operate the change-over switch 27, 65, 64, thus opening the firing circuit, and closing the circuit through the resetting solenoid 46. This actuates, through a rod 44 and bell-crank lever 41, a slotted member 39 which operates on the pins 50, 51 to release the feed and retaining pawls and allow the arm 17 to return to the stop 16. The arm 32 may operate a known form of counter mechanism 79. The solenoids 36, 46 may be replaced by oscillating electric motors of known type. Fig. 3 shows the means operated by a solenoid 58 for actuating the sear 57 to release the gun breech block 55 from its rear or cocked position. The armature of the solenoid 58 operates a valve 59, admitting pressure air to a piston 60, the rod of which has a cam 61 for moving a follower 62 on a rod engaging the sear. The recoil-operated switch 75, Fig. 4, mounted on a spring-pressed pivoted arm 69, is forced between contact blades 66, 67 by the passage of the breech block over a roller 71 on the arm.
Patent GB-765949-A (GB)
Title: Multi-cylinder two-stroke internal combustion engines having exhaust gas turbo chargers
IPC: F02B75/02
Filed: 1955-03-15
Abstract: 765,949. Two-stroke engines ; charge pumps. SULZER FRERES SOC. ANON. March 15, 1955 [Dec. 17, 1954], No. 7590/55. Class 7 (2). Displacement pistons, e.g. the undersides of working pistons 2, vary the volume of chambers 11 opening, as via further chambers 13 and passages 14, into inlet passages 6 connecting piston-controlled inlet ports 3 of individual cylinders to a manifold 5 supplied with air by an exhaust driven turbo-charger, part of the stroke of each displacement piston being rendered ineffected by a by-pass port 18 connected to the manifold 5 by a passage 19. An auxiliary inlet port 20 may communicate with the passage 19 and, where a mechanical exhaust valve in series with the exhaust port 8 allows the use of a shortened piston 2, may also constitute the by-pass port, the port 18 being dispensed with. To hinder back flow to the manifold 5, each passage 14 may end in a guide nozzle 15, a portion of each passage 6 up-stream of the passage 14 may be constricted and/or a check valve 16 or venturi or spiral device may be located in the passage 6 upstream of the passage 14. There may be a single exhaust driven turbine, one for each of a plurality of cylinder groups or one for each cylinder. Specifications 765,948 and 765,950 are referred to.
Patent GB-526149-A (GB)
Title: Improvements in or relating to manufacture of motor fuel
IPC: C07C2/62
Filed: 1939-03-09
Abstract: 526,149. Synthetic motor spirit. TEXACO DEVELOPMENT CORPORATION. March 9, 1939, No. 7648. Convention date, March 18, 1938. [Class 2 (iii)] In producing gasoline of high octane number by alkylating isobutane with normally gaseous olefines heavier than ethylene in presence of strong sulphuric acid, the normally gaseous hydrocarbons separated from the normally liquid reaction products are fractioned to obtain a portion rich in isobutane which is recycled to the alkylation operation, and the total weight of isobutane, including that recycled, is at least 3 times that of the olefines. Advantageously, normal butane separated is combined with the gasoline to increase its volatility. The olefines may be C or C 4  cracked hydrocarbon fractions, the acid is 80-100 per cent. H 2 SO 4  and at least equal in weight to the olefines ; the temperature -40 to + 176‹F. ; and the pressure is normally sufficient to keep the hydrocarbons liquid e.g. 25-150 lb. For example, unsaturated C 4  hydrocarbon stock in a pipe 1 is enriched with an isobutane fraction recycled through pipe 58 and passed into a reactor 5 at 90‹F. fed with once-used sulphuric acid by a pipe 8 ; the mixture is forced by a pump 9 to a settler 12 from which used acid is withdrawn through a pipe 14, the hydrocarbons flow by a pipe 15 to a second reactor 16 fed with 94 per cent. acid by a pipe 20, and thence to a settler 25 ; the once-used acid is pumped through the pipe 8 to the reactor 5 ; the hydrocarbons are taken through a pipe 28, mixed with soda ash or caustic soda from a pipe 32, and passed through a scrubber 31 and a pipe 34 to a settler 35 ; the used alkali is withdrawn through a pipe 36 and is either discharged through a valve 40 or returned to the pipe 32 by a pipe 38. The neutralized hydrocarbons are transferred by a pipe 43 to a stabilizer 42, from which the normally liquid hydrocarbons and normal butane retained therein flow by a pipe 47 to a fractionator 46, and the normally gaseous hydrocarbons e.g. isobutane, butenes, unabsorbed butane and lighter hydrocarbon are vaporized through a pipe 51 to a fractionator 52. In fractionator 52 the lighter gases are separated and discharged through a pipe 54 ; the C 4  fraction if containing but little normal butane is passed out by a pipe 53 and recycled to the pipe 2 via pump 60 and pipe 63, pump 56, and pipe 58 ; if containing much butane the isobutane is removed therefrom through pipe 55 and recycled by pump 56 and pipe 58, and the normal butane removed as liquid through the pipe 53 and is either discharged or is passed through a pipe 61 to an accumulator 62 receiving gasoline from the fractionator 46 by a pipe 66, condenser 67, and pipe 68 ; heavy liquid fractions are withdrawn from the fractionator 46 through a pipe 65. Additional isobutane or hydrocarbon stock rich in isobutane may be introduced to the reactor 5 by a pipe 72. Specification 515,367 is referred to.
Patent GB-469239-A (GB)
Title: Improvements in supports for electric discharge tubes
IPC: F21V19/00
Filed: 1937-03-16
Abstract: 469,239. Discharge apparatus. GENERAL ELECTRIC CO., Ltd., (Patent-Treuhand- Ges. fur Elektrische Gluhlampen) March 16, 1937, No. 7673. [Class 39 (i)] A support for a tube consists of a threaded bolt 1 of insulating- material secured to a base plate 4 by insulating nuts 2, 3, and carrying a resilient collar 6, the arms of which are sheathed in insulating-material 8 and grip the tube. Downwardly-extending lugs 10 on the collar lie in recesses in the bolt-head 5.
Patent GB-1335640-A (GB)
Title: Device for manually filling cigarette tubes with tobacco
IPC: A24C5/42
Filed: 1972-02-18
Abstract: 1335640 Cigarette-making appliance EFKAWERKE FRITZ KIEHN GmbH 18 Feb 1972 [5 Aug 1971] 7694/72 Heading A2C A device for manually filling cigarette tubes with a plug of tobacco comprises: a chamber 14 for receiving loose tobacco inserted through an opening 13 in a housing 11, 12; a press bar 17 for compressing the tobacco to form a plug and which is actuable by a toggle lever system 18 including two first levers 19 (only one is shown in Fig. 1) pivotally connected at one end to the press bar 17 and at the other end to a second lever 21 which has a handle 23 projecting out of the housing 11, 12 for manual actuation in a direction generally at right angles to the direction of movement of the press bar 17; an ejection member for ejecting the tobacco plug; and means at the discharge end of the chamber 14 for holding a tube to be filled with a plug of tobacco. The ejection member comprises a conventional spoon 25 carried by a lug 43 integral with a slide 42 which is manually actuable by means of a handle 29. In moving from top to bottom, the lever system 18 swings slightly beyond its dead-centre position so that the press bar 17 is withdrawn by a small amount to release the compressed tobacco plug. The device includes a compartment for the storage of tobacco or cigarette tubes.
Patent GB-770367-A (GB)
Title: Improvements in or relating to methods of connecting a helix to a rod
IPC: H05B3/06
Filed: 1955-03-16
Abstract: 770,367. Making electric components; jointing by rolling. VOIGT & HAEFFNER AKT. GES. March 16, 1955 [March 16, 1954], No. 7696/55. Classes 83 (2) and 83 (4). [Also in Group XXXVI] The end of a helical resistance element 3 is connected to a rod 1 by forming a screw-thread 2 on the end of the rod, on to which the element is screwed, the screw-thread then being closed over the element by a rolling operation. The free end of the rod is then tapered by rolling or hammering to form a terminal portion 5 which may be bent, for example, to form an eye.
Patent GB-566048-A (GB)
Title: Coating compositions
IPC: C09D127/06
Filed: 1943-05-14
Abstract: A coating composition comprising a vinyl resin containing a polymerized vinyl halide and lecithin or cephalin.  The amount of lecithin or cephalin preferred is from 1 to 7.5 per cent based on the weight of vinyl resin.  The vinyl resins specified are vinyl chloride polymer, vinyl chloride-vinyl acetate copolymer and chlorinated polyvinyl chloride.  A solvent such as methyl ethyl ketone, methyl isobutyl ketone, methyl amyl ketone, butyl phthalyl butyl glycollate, toluene or xylene may be added, as may also pigments such as titanium dioxide and antimony oxide pigments. The polymer, solvent and lecithin or cephalin are mixed, applied to a clean metal surface and baked at approximately 350 DEG  F. for about half an hour.
Patent GB-907065-A (GB)
Title: Process for the removal of aromatic impurities from liquid phenyl methyl polysiloxanes
IPC: C08G77/34
Filed: 1961-03-02
Abstract: Aromatic impurities, such as diphenyl and its chlorine derivatives, are removed from liquid phenylmethyl polysiloxanes by extracting, without distillation, the impure siloxanes with a polyhydric alcohol, an amino alcohol or a mono- or polyamine.  In examples a phenylmethyl siloxane oil containing chlorinated aromatic impurities, was continuously extracted with (1) 1,2-dihydroxypropane, and (2) 2-(b -hydroxyethylamino)-ethylamine, in an apparatus consisting of an upright cylindrical extraction tube fitted with a stirrer and steam heating coil and having at the bottom end a conical taper connected through a U-tube with a distillation vessel, the vapour space of which is connected to a condenser situated so that condensed extracting agent drops back into the extraction tube; during continuous recycling of the extracting agent, the impure siloxane is passed through an upwardly directed nozzle at the bottom of the extraction tube, collects above the denser extracting agent and is finally taken off as raffinate through an overflow pipe.  (3) The impure siloxane and extracting agent of (2) were stirred for 1 hour at 90 DEG C., after which the upper siloxane layer was siphoned off, washed with saturated NaCl solution and filtered through a layer of KHSO4.  Other extracting agents specified are 1,2-dihydroxyethane, 1,2,6-trihydroxyhexane, tri-(2-hydroxyethyl)-amine, 1-amino-2-hydroxypropane and 1,2-diaminoethane.  Specification 907,066 is referred to.
Patent GB-1282856-A (GB)
Title: Gas turbine engines
Inventor: BARNARD MARK CARY SEDGWICK
IPC: F01D11/18
Filed: 1970-02-18
Abstract: 1282856 Gas turbines LEYLAND GAS TURBINES Ltd 18 Jan 1971 [18 Feb 1970] 7739/70 Heading F1T The turbine rotor 4 in a gas turbine engine is surrounded by a stator shroud ring 1 of a material having an appreciably lower co-efficient of thermal expansion than that of the rotor. The materials may be stainless steel for shroud ring 1 and a nickel-chromium alloy for the rotor, the constituent proportions being specified. The shroud ring also surrounds a nozzle ring 2 carrying vanes 3, the nozzle assembly having a higher coefficient of expansion than shroud ring 1 so that a clearance 6 between vanes 3 and ring 1 in the cold state is reduced to zero at operating temperatures. However the same clearance 6 is maintained between rotor blades 5 and ring 1 under all conditions. The construction is applicable to regenerative gas turbines in which shroud ring 1 is surrounded by hot air from a heat exchanger.
Patent GB-603091-A (GB)
Title: Improved electrically driven power transmitting device
IPC: B64C13/24
Filed: 1945-03-28
Abstract: 603,091. Control of D.C. motors. GENERAL MOTORS CORPORATION. March 28, 1945, No. 7794. Convention date, April 3, 1944. Addition to 583,232. [Class 38 (iii)] In the power-transmitting device described in the parent Specification, means are provided to maintain a substantially constant holding- effort by the electromagnetic clutch irrespectively of the direction in which the load is moved. The direct-current motor 20 is provided with field windings 21 and 22, and the electromagnetic clutch-winding consists of two sections 41 and 42, which may be of different resistances and of different gauges. When a selector switch 70 is moved to energize a relay 50, the field winding 21 is connected in series with the motor armature and both clutchwindings, and the load-carrying nut 26 ascends until it opens a limit-switch 73. Movement of the selector switch to close a relay 60 effects a series-connection of both motor field windings with the lower-resistance clutch-winding 41 across the motor armature, and the load descends until a limit-switch 76 is opened. At excessive lowering speeds the motor acts as a regenerative brake.
Patent GB-364428-A (GB)
Title: Improvements relating to hinged windows, fan-lights, ventilators and the like
IPC: E05F11/06
Filed: 1931-03-14
Abstract: 364,428. Stays. NEWMAN & SONS, Ltd., W. and NEWMAN, H. G., 268, Hospital Street, Birmingham. March 14, 1931, No. 7891. [Class 65 (i).] Relates to hinged windows and ventilators of the kind actuated by links or a cable connected to a displaceable rod or slide. According to the invention, the handle used for reciprocating the slide is hingedly secured thereto and is adapted to lock the window in any position by engaging in notches or other co-operating locking parts in or upon any stationary member. As shown, a hinged window 1 is actuated by a cable 6 which passes through a horizontal tube above the window opening and is secured to a vertical slide disposed within vertical tubes 3, 3a. The lower end of the slide is formed with a bracket 9 which projects through a longitudinal slot in the tube 3. To the bracket 9 is hinged a handle 8 by which the slide is moved to open or close the window. The window is locked in its fully open or closed positions by the engagement of the lower free end of the handle with notches 11, 12 formed in the slot of the tube 3. Several 'notches may be provided whereby the window may be locked in any intermediate position. A guard 13 secured to the bracket 9 and covering the slot is provided to protect the hand of the operator. In a modification, the lower end of the handle engages suitable stops or projections on the tube 3. Alternatively, the lower end of the handle may be forked, or may be shaped to fit over one side of the tube 3, and engage recesses or holes in a fixed plate behind the tube.
Patent GB-549295-A (GB)
Title: Improvements in conveyors
IPC: B65G19/16
Filed: 1941-08-12
Abstract: 549,295. Conveyers. HOWARD, W., and HOWARD, A. M. Aug. 12, 1941, No. 7974/42. Divided out of 548,587. Drawings to Specification. [Class 78 (i)]. A conveyer for lumps or granular material comprises a closed conduit of circular crosssection having inlet and outlet openings, a continuous or endless chain, and spaced drag plungers secured to the chain and of elliptical cross-section. The description and drawings are identical with those of Specification 548,587, but the claims differ.
Patent GB-384510-A (GB)
Title: Portable-track wheel
IPC: B60B15/18
Filed: 1932-03-18
Abstract: 384,510. Endless tracks for vehicles. LAIZ•, A., La Bohalle, Maine-et-Loire, France. March 18, 1932, No. 8100. Convention date, March 28, 1931. [Class 79 (i).] A vehicle-wheel c is provided with an endless track having articulated members b which are supported by spring-loaded plungers t mounted on a hub member and are connected together by pivots a having no lost-motion. The wheel c has a hub m and spokes r, and the track plungers t slide radially in flanged discs d rotatable on the hub m. The track comprises feet p which may be pivoted to the links m by the same pivots a which connect the links to the plungers t. In a modification two feet may be fixed on each link b. The feet may be pyramidal as shown, or rectangular. The plungers t are preferably adjustable in length, being formed with telescoping members connected together by clamps. The rim c of the wheel is formed with teeth h engaging in openings in the links b.
Patent GB-1456406-A (GB)
Title: Production of 4-mm-ditert-butyl-p-hydroxy-phenyl-butan-2-ones
IPC: C07C45/71
Filed: 1974-02-22
Abstract: 1456406 Preparation of 4 - (m,m<SP>1</SP> - ditertbutyl - p - hydroxyphenyl) - butan - 2 - one BASF AG 22 Feb 1974 [24 Feb 1973] 8115/74 Heading C2C A compound of formula  in which each R may be identical or different represents hydrogen or an aliphatic radical, is obtained by treating 2,6-ditert-butylphenol with a compound of formula in which R has the meanings given above, in the presence of a strong acid (having pKa of from - 7 to + 2À16) at an elevated temperature. The reaction may be carried out at a temperature of from 30‹ to 160‹ C., optionally in the presence of an inert organic solvent.