baber/WOPTO huggingface dataset:
Patent GB-1094975-A (GB)
Title: Improvements in or relating to alloy steels suitable for magnetic purposes
Inventor: WELLS JOHN EDWARD
IPC: C21D8/12
Filed: 1965-07-21
Abstract: A steel for magnetic use containing 0.08% to 8% of aluminium together with not more than 0.5% of silicon introduced during a preliminary refining step, or containing in addition to that silicon content not more than 7% in total of silicon and aluminium, the additional silicon not exceeding 3.5%, is hot rolled, cold rolled, and annealed, the metal being protected against nitrogen pick-up during all anneals either by annealing in a wet atmosphere containing not more than 20% of nitrogen, and/or by providing a barrier layer of oxide on the surface of the metal. Annealing may be carried out at 600 DEG -1020 DEG C.
Patent GB-479699-A (GB)
Title: Improvements relating to electric discharge devices
IPC: H01J19/44
Filed: 1936-11-13
Abstract: 479,699. Discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd. Nov. 13, 1936, No. 31058. Convention date, Nov. 20, 1935. [Class 39 (i)] An electric discharge device is provided with a structure for supporting the anode independently of the cathode and grid members, which also serves as a shield to prevent the deposition of getter material on the electrodes or the insulation between the electrodes. In the form shown, a metal envelope 1 is closed at one end by a member 2 to which is secured a cylindrical shield 16 having outwardly flanged edges. The anode 11 is supported from the shield by mica strips 15 secured by eyelets 17, and the getter is located in a pocket 20 in the space between the shield and the envelope. When the getter is vaporized by heating the pocket 20, the flange 18 acts as a nozzle to direct the vapour away from the electrode structure. The remaining electrodes are supported independently of the anode by insulating spacers 13, the upper spacer having a flanged portion engaging the reduced end of the envelope. When the anode is at the same potential as the envelope, the strips 15 may be metallic'. Specification 443,767 is referred to. The Specification as open to inspection under Sect. 91 states that the anode and shield may be made in one piece. Alternatively, the anode may be supported independently of the shield 16 or may form the envelope. This subjectmatter does not appear in the Specification as accepted.
Patent GB-741031-A (GB)
Title: Valve device
IPC: F16K7/07
Filed: 1953-11-10
Abstract: 741,031. Fluid-actuated valves. SEGERSTAD, C. G. H. AF. Nov. 10, 1953 [Nov. 14, 1952], No. 31141/53. Class 135. A valve device comprises a vessel 1 containing a fluid medium for transmitting pressure from an impulse member 11 to control a valve member 2 in which the member 11 consists of a hollow elastic body with its outside contacting the medium and its inside communicating with a variable pressure device, and the valve member is at least partly an elastic tube collapsible by the pressure impulses. As shown, pressure medium is supplied to the flat cylindrical member 11 through a pipe 14 containing a constriction device 13 and a needle leak-off valve 15. The vessel may contain a flexible or a rigid ported partition 16 to act as a damping device. In a second embodiment the member 11 is connected to the inlet 7 and outlet 8 respectively through a restriction and a valve, or vice versa, to form a pressure regulator. In a third embodiment the elastic tube has a flattened crosssection and is surrounded by an annular member 11 concentric with a tubular vessel 1.
Patent GB-757862-A (GB)
Title: Disc mill
IPC: B02C7/06
Filed: 1954-10-28
Abstract: 757,862. Disc mills. BAUER BROS. CO. Oct. 28, 1954 [Feb. 5, 1954], No. 31220/54. Class 59. [Also in Group XXVI] A method of refining pulp material in a disc mill comprises supplying the material under pressure to the grinding discs and of applying a counter pressure opposing the movement of the material between the discs. The mill shown comprises a fixed plate 16 and a rotatable disc 23 carrying grooved grinding plates 22, 24 respectively, the pulp material being supplied under pressure from a chest 19, by means of a pump 21, to the inlet 20 of the mill and passing between the plates 22, 24 to a liquid-tight pressure chamber 56 having an outlet pipe controlled by an adjustable valve 59 (not shown). The disc 23 is mounted on a motor-driven shaft 25 which is connected to a piston assembly 40 movable in a hydraulic cylinder 33, fluid being supplied from a reservoir 43 to chambers 41, 42 at opposite ends of the cylinder. The back of the disc 23 may be provided with vanes 61 and the outlet from the chamber 56 may be at 62. In operation, the pump 21 is operated to fill the system, including the chamber 56, with pulp material. Then the valve 59 (not shown) is adjusted to a selected position of restriction and the electric motor started to rotate the shaft 25 and disc 23. Finally, the hydraulic circuit is adjusted to create an overbalancing pressure in the chamber 42 so that the shaft 25 is moved axially to cause the disc 23 to approach the plate 16. At the selected speed of operation and the selected position of the valve 59 (not shown), the pressures on opposite sides of the disc 23 are in equilibrium. As the surfaces of the grinding plates 22, 24 wear, the pressure on the back of the disc 23 increases so that the disc is moved slightly to restore the pressure balance on opposite sides of the disc.
Patent GB-152891-A (GB)
Title: An improved device or means for preventing the theft of motor vehicles
IPC: B60R25/022
Filed: 1919-12-13
Abstract: 152,891. Lee, F. H. Dec. 13, 1919. Guarding against unauthorized use.-A device for rendering the hand steering-wheel inoperative comprises a plunger with a squared part adapted to be moved into and out of engagement with squared parts on the steering shaft and an extension of the wheel, the movement of the plunger being controlled by a permutation lock. The hand wheel 8 is fitted with permutation rings 6 between an inner core 13 and a case 7, and can rotate freely on the steering shaft 5. The plunger 10 is provided with a squared part 10<a> for engaging squared parts 8<a>, 5<a> on the wheel and shaft respectively, and with lugs 14 which, on setting the rings, can pass through slots therein. The plunger is fitted with a hollow, slotted part 10<c> which will collapse on an attempt to force the plunger through the permutation rings, and with a screw 15 for holding it in its operative position.
Patent GB-1400896-A (GB)
Title: Stepping switch assembly
IPC: H01F29/04
Filed: 1973-07-02
Abstract: 1400896 Inert switches; snap-action switches; retractive switches MASCHINENFABRIK REINHAUSEN Gebr SCHEUBECK KG 2 July 1973 [5 July 1972] 31382/73 Heading H1N A stepping switch comprises a rotor 7 having two arms, one carrying a cam 15 tilting a spring loaded lever contact 8 pivoted on fixed contact 3 and, when cam 15 has passed, contacting fixed contact 4 under the action of spring 16, the second arm carrying on its opposite side (or on the opposite side of the first arm) a spring loaded wiping contact 9 bridging fixed contacts 14 and 6 (14 being an annular contact which contact 9 permanently engages). Also on the opposite side of one arm is a contact 10 which bridges fixed contacts 13, 5, contact 13 being an annular contact permanently engaged by contact 10, a rib 17 between adjacent fixed contacts lifting contact 10 off contacts 5 as the rotor 7 is rotated.
Patent GB-1081953-A (GB)
Title: Improvements in the copy paper employed in electrostatic copying
IPC: G03G7/00
Filed: 1964-08-04
Abstract: 1,081,953. Laminates. F. G. LUDWIG. Aug. 4, 1964 [Aug. 16, 1963], No. 31537/64. Heading B5N. [Also in Division G2] The copy paper for use with a xerographic copying machine comprises a thin imagereceiving sheet separably laminated to a thicker and stiffer carrier sheet whereby the paper is rigidified for easier passage through the machine. The thin sheet may be of tracing paper, rag stock paper, or a clear or matte surfaced plastics sheet, e.g. of polyester resin, and may be used subsequently as a Diazo master.
Patent GB-1174856-A (GB)
Title: Process for Recovering Mercury from Alkali Metal Hydroxide Solutions
IPC: C01D1/28
Filed: 1967-07-10
Abstract: 1,174,856. Recovering mercury from alkali metal hydroxide solution. FARBWERKE HOECHST A.G. July 10, 1967 [July 8, 1966], No.31651/67. Heading C7D. Mercury is recovered from alkali metal hydroxide solutions, produced by decomposing with water the amalgam produced by electrolysis of chloride solutions using a mercury cathode, by passing them through a centrifugal separator at such a rate that the mean residence time of the solution in the rotor is 0À3-3 seconds per centimetre of the internal radius of the rotor. The centrifugal acceleration used may be 1, 000 - 10, 000 g and the solution is preferably introduced at the temperature at which it leaves the amalgam decomposer (e.g. 70-110‹C.).
Patent GB-1338154-A (GB)
Title: Method and apparatus for processing sensitized material
IPC: G03D3/06
Filed: 1971-07-22
Abstract: 1338154 Film processing R P LAYNE 22 July 1971 31686/71 Heading G2A In a method of film processing, vertically oriented sensitized material e.g. X-ray film is passed into a module through an entrance slot 52 and along a path defined by staggered vertical driving rollers 60 and upright members 68. Both rollers or upright members preferably have wettable surfaces e.g. of fabric, felt, foam or bristles. The material is processed by fluid flowing into the module via port 74 and draining from chamber 72, through a slot 76 above the rollers, across both faces of the material to a drain (80, 82) Fig.4 (not shown). The wettable surfaces 70 enable seals at the inlet and outlet of the module to be eliminated. Brushes 88, behind the rollers, remove reaction by-products and emulsion particles from the roller surface. The rollers are driven by their upper ends 62 engaging with a timing belt 66. In a modification Fig. 6 (not shown) the rollers (100) may oppose each other or in Fig. 7 (not shown) one side of the slot may be formed by an endless belt (104) having a wettable surface. In Fig. 5 (not shown) the brushes are replaced by member (68') having fluted portions (90) in which the rollers rotate. The method may also be carried out in the apparatus of Fig. 8 in which the path of travel is defined by opposed driving rollers 110 and applicators 112, the film passing therebetween and contacting bristles 114 extending from the applicator surface. In this case processing fluid is sprayed onto the material from a vertical feed channel (120) Fig. 9 (not shown) leading to a dribble port (122) provided on each applicator. A complete processing apparatus Fig. 1 (not shown) comprises developer, fixer, washing and drying modules each having a separate means for delivery and storage of processing fluid. Heat exchangers may be incorporated and the dryer module may include fluid absorbing rollers or vacuum treatment.
Patent GB-767238-A (GB)
Title: Safety heating elements for use in blasting operations and compositions suitable therefor
Inventor: MAXWELL WILLIAM
IPC: F42B3/06
Filed: 1954-11-03
Abstract: 767,238. Blasting cartridges. IMPERIAL CHEMICAL INDUSTRIES, Ltd. June 29, 1955 [Nov. 3, 1954], No. 31778/54. Drawings to Specification. Class 9 (1). In blasting devices similar to those described in Specification 731,096, the heating charge for initiating decomposition of the gas-producing charge comprises 0-35 per cent. by weight of an ammonium, sodium or potassium nitrate, 20 per cent. to 70 per cent. by weight guanidine nitrate, the total amount of the nitrates being 55-70 per cent. by weight, 25 per cent. to 45 per cent. by weight ammonium persulphate and 0.5 per cent. to 10 per cent. by weight cuprous chloride. The heating composition may include up to 3 per cent. by weight of an oxygen negative organic fuel and up to 1 per cent. by weight of organic material such as castor oil. Specification 430,750 is referred to.
Patent GB-924335-A (GB)
Title: Improvements in air-blast circuit breakers
IPC: H01H33/46
Filed: 1961-09-05
Abstract: 924,335. Air-blast switches. ALLMANNA SVENSKA ELEKTRISKA A.B. Sept. 5, 1961 [Sept. 6, 19601, No. 31813/61. Class 38 (5). In an air-blast switch of the kind having contacts 12, 13 disposed in a compressed-air container 11 and opened by the pressure in the container when a blast-valve 20 is opened on the application of " operating " compressed air to its operating piston 23, the moving contact 13 is positively latched in the open position so that it remains open when the valve automatically recloses to shut off the air blast. The latch comprises levers 31, 32 carrying rollers 29, 30 which are biased into latching engagement with a reduced part 27 of a rod 26 extending from the contact 13. The biasing force is derived from the pressure of the operating air acting on a piston 37, so that when the operating air supply to a pipe 40 is shut off, a spring 19 is able to reclose the contacts.
Patent GB-735622-A (GB)
Title: Improvements in or relating to resilient torsion joints
IPC: F16F1/54
Filed: 1953-11-17
Abstract: 735,622. Resilient joints. NEIDHART, H. J. April 15, 1954 [Nov. 17, 1953], No. 31869/53. Class 108 (3). In a resilient torsion joint of the type comprising an outer member 2 having a bore of the shape in cross-section of a non-re-entrant closed multilateral figure concentric with an inner member 1 of similar cross-sectional shape, with rubber masses 3 fitting the spaces between the two members 1, 2, the number of sides of the outer member 2 is a multiple of the number of sides of the inner member 1. As shown, the angles 5 between adjacent sides of opposite pairs of sides, are greater than the angles 4 between the remaining sides. The inner or outer members may be formed with shims as described in Specification 730,534, and the inner member may be formed as described in Specification 730,167. The inner member may be of triangular cross-section (Fig. 1, not shown). Specifications 652,266 and 710,244 also are referred to.
Patent GB-1583069-A (GB)
Title: Disazo pigments process for their manufacture and use thereof
IPC: C09D11/00
Filed: 1977-07-29
Abstract: The disazo pigments of the formula I are prepared by coupling the diazo compound of an amine of the formula II with a bisacetoacetyl- phenylenediamine of the formula III in the molar ratio 2:1. The substituents in the formula I have the meaning given in Patent Claim 1. The disazo pigments prepared can be used for pigmenting high-molecular weight organic material and, for example, dye polyvinyl chloride in yellow to orange dye shades having excellent light, weather and migration fastnesses. <IMAGE>
Patent GB-319750-A (GB)
Abstract: 319,750. Mack, M., and Grotzinger, W. Sept. 28, 1928, [Convention date]. Accumulators.-In accumulators of the air-loaded type, the valves controlling the operation of the supply pump are arranged in the wall or end of the cylinder, and are operated through a longitudinal rod by the movement of the piston which separates the air and liquid spaces, the rod having a lost motion connection with the valves or their operating means. The axes of the valves may be parallel or at right angles to the axis of the accumulator cylinder, the operating member consisting of a plate 11, Fig. 3, or a sleeve 22, Fig. 4. In another form, a piston controlling valve 33, Fig. 5, is provided. Stop and safety valves may be fitted. Specification 267,183 is referred to.
Patent GB-1136050-A (GB)
Title: Control systems for electric motors
IPC: G05D3/18
Filed: 1966-07-15
Abstract: 1,136,050. Control of D.C. motors; rectifying. GENERAL ELECTRIC CO. 15 July, 1966 [7 Oct., 1965], No. 31985/66. Headings H2F and H2J. The dead band of a phase control rectification system for a reversible D.C. motor is reduced and crossfire between phases is prevented by supplying the motor at zero speed with A.C. pulses of a magnitude slightly less than that to cause the motor to turn. Lockout circuits are then connected with the rectification system to produce a regenerative feedback path between the output and input of the system within the dead band region. The speed and direction of motor 11 are controlled by varying the magnitude and polarity of the voltage supplied by silicon controlled rectifiers 4-9 connected in back-to-back paired relationship in the threephase supply-lines. Servo amplifier 14 develops an error signal representing the deviation between the actual and desired positions of the load, this signal being delivered to triggering circuits 15, 16. Crossfire is prevented by resistor 13 which develops a voltage indicating the direction of motor current. This voltage is sensed by level detectors 17, 18, which deliver an inhibiting signal to the triggering circuits for the rectifiers which are not supposed to be conducting. When a positive potential is present at terminal 12 in excess of a threshold value, a Schmitt trigger circuit, forming part of a detector 18, renders a transistor conductive whereby a negative signal is applied to terminal 36. The trigger circuit 16 comprises a capacitor which has a constant-current charging circuit and is discharged through a unijunction transistor and a pulse transformer to cause the rectifiers 5, 7, 9 to conduct at an instant determined by the error signal applied to terminal 41. When the detector 18 presents a lowimpedance path to the terminal 36, the capacitor is discharged away from the pulse transformer, thereby inhibiting conduction of the rectifiers. The voltage level detector 17 is similar to the detector 18 and responds to negative potentials below a threshold value to prevent the firing circuit 15 from rendering the rectifiers 4, 6, 8 conductive. With the inhibiting circuits inoperative, the firing circuits are adjusted so that each rectifier conducts to supply A.C. to the motor, each half-cycle being slightly below that needed to yield a break-away torque. By connecting the inhibiting circuits, the motor is supplied with positive or negative pulses depending upon the polarity of the input signal. This is due to the fact that small changes in the input signal in one direction increases the motor current in that direction and tends to prevent conduction of the rectifiers poled in the opposite direction. This effect is accumulative and continues until only the desired set of rectifiers is conductive and the opposite set is completely inhibited.
Patent GB-140036-A (GB)
Title: Improvements in rubber pads for the soles of foot wear
IPC: A43B13/12
Filed: 1919-12-20
Abstract: 140,036. Abbott, R. Dec. 20, 1919. Protectors, construction of.-A bootprotector comprises a toe member 3 and two integral side members 1, 2, the toe member being secured by three, and each side member by five, screws passing through embedded washers. The wear is taken by annular smooth portions 7, 8, 9, and 10, 11, 12 surrounding the three central screws of the side members, and by a smooth area 13 surrounding the screws of the toe member; the other screws of the side members may be surrounded by smaller annular smooth portions. The remaining part of the tread surface is provided with transverse flutes 15.
Patent GB-1194776-A (GB)
Title: Fault Detector for an Aircraft Cabin Pressure Control System
IPC: G05D16/20
Filed: 1968-07-05
Abstract: 1,194,776. Controlling pressure electrically. UNITED AIRCRAFT CORP. July 5, 1968 [July 28, 1967], No. 32081/68. Heading G1N. In an automatic pressure control system for an aircraft cabin in which a signal Pd representative of a desired pressure is compared with a signal Pc representative of the actual cabin pressure in a summing network 14 to produce an error signal e which operates an actuator 16 controlling a valve 18, the desired pressure signal Pd is applied through a fault detector including a differentiating circuit 30, 32 to cause actuation of a relay 28 whenever the rate of change of desired cabin pressure exceeds a predetermined value, the relay contacts 24-26 causing change-over from the automatic to a standby system. The output from the differentiating circuit is applied through first and second differential amplifiers 34, 37 and diodes 42, 43, whereby the arrangement responds to changes in both directions, to a junction point 44 having a threshold potential representing the maximum permissible rate of change of pressure which can be tolerated. Relay 28 is controlled by a transistor 28. It is stated that the threshold potential represents both the maximum permissible rapid rate of change and the maximum permissible slow rate of change. Delay provided by the relay or an electronic circuit may prevent the changeover to standby operation in the event the maximum permissible rate of change is exceeded for only a brief interval. The automatic control system is of the type described in Specification 1,128,936 in which an ambient pressure signal Pa has subtracted from it a pressure signal Pa SET indicative of the scheduled pressure at the cruising altitude to produce a difference signal which is applied through a function generator 10 to furnish the desired cabin pressure signal Pd. The error signal # is fed back through a tracking circuit 20 to control a signal Pd in a rate limiter circuit 12.
Patent GB-825669-A (GB)
Title: Device for widening pipes, tubes, spouts or the like made of rubber, synthetic rubber, or artificial resilient material
IPC: B29C55/24
Filed: 1957-10-15
Abstract: 825,669. Pliers. HELLERMAN P., [trading as HELLERMAN FABRIK ELEKTROTECHNISCHER SPEZIALARTIKEL, P.] Oct. 15, 1957 [Oct. 26, 1956], No. 32123/57. Class 61. In a device for widening pipes, tubes and the like made of rubber or other resilient material comprising two movable triblets and one fixed triblet all being capable of being inserted into the part to be widened and then to be moved apart, two shanks each carrying one of the two movable triblets are provided and an intermediate connecting member carrying the fixed triblet, which intermediate member is capable of causing opening movement of the movable triblets upon closing movement of a pair of arms associated with the movable triblets. As shown, triblets 9, 10 are carried by arms 3, 6 capable of movement towards or away from each other the triblet 8 being carried by the head of the tool which is integral with the handle lever 2 and has pivoted thereto at 5 the arm 6. The handle lever 1 is rigidly connected to the arm 3 which is pivoted to the head at 7. Closing of the handle levers causes separation of the triblets. An adjustable thrust lever stop 11, pivoted at 12 to the handle lever 1 and at 13 to the arm 6, has three cut outs 14, 15, 16 for engagement by a pin 20 which is selectively inserted in any one of the orifices 17, 18, 19 in the head. The triblets are detachably connected to the arms 3, 6 as by screws. In a modification the thrust lever 11 is replaced by a toothed wheel transmission. The device may be constructed as a bench device.
Patent GB-600536-A (GB)
Title: Improvements in or relating to axle supports for trucks and like vehicles
IPC: B60B35/00
Filed: 1945-11-28
Abstract: 600,536. Axle mountings. TRIPOD ENGINEERING CO., Ltd., DAVIS, E. W., EDWARDS, S. P., and OWEN, E. J. Nov. 28, 1945, No. 32208. [Class 108 (ii)] Means for securing an axle a to a truck or like vehicle comprises a substantially rectangular plate d having a central portion bent to form two converging slopes f, united by a curved portion g in which the axle is adapted to nest, the slopes being welded to the axle as at h. The portion i of the axle is slightly proud of the flat end portions of the plate d and a wheel (not shown) is mounted against a spacer-disc b welded to the axle.