baber/WOPTO huggingface dataset:
Patent GB-1379192-A (GB)
Title: High efficiency current feedback control system
Inventor: DAHLINGER R J
IPC: H03K17/60
Filed: 1973-02-09
Abstract: 1379192 Transistor switching circuits HUGHES AIRCRAFT CO 9 Feb 1973 [9 Feb 1972] 6532/73 Heading H3T [Also in Division H2] A switching transistor Q3 feeding an output transformer T3 is driven by an input transformer T2 having two primary winding connected together and respectively to on and off switching devices shown as transistors Q 1  and Q 2 , positive feedback being provided from the output to the connected ends of the primary windings by a transformer T 1 . The feedback varies the drive in accordance with the load current and thus increases the efficiency. R1 supplies initial turn-on power. The output may be used to charge the capacitance 66 of a pulse forming network during the "flyback" following switch off. The input may be pulsed at a fixed frequency or switch-off may be effected by a sensing circuit when a desired peak current is reached.
Patent GB-909487-A (GB)
Title: Improvements in or relating to enclosed toothed gearing
IPC: F16H1/14
Filed: 1960-02-25
Abstract: 909,487. Toothed gearing. CORDEY, R. F. Feb. 24, 1961 [Feb. 25, 1960], No. 6583/60. Class 80 (1). In a gear-box of the kind in which input and output shafts are mounted at right angles to one another and there are provided several openings 11 adjacent which detachable cover or shaft supporting members 19 are secured, each cover or shaft supporting member is formed with a circumferential flange 21 of generally square profile adapted to abut a flat external facing around the adjacent opening, the facing being extended to surround two alternating sets of tapped holes 14, 15 of which one set 15 receives attachment screws 20 passing through the corner of the flange, whilst the other set 14 is left exposed by the flange to permit securement of the gear-box to a bracket by separate screws. The carrier plate may have arcuate slots to permit angular adjustment of the gear-box.
Patent GB-540416-A (GB)
Title: Improvements in belt conveyors
IPC: B65G39/14
Filed: 1940-04-12
Abstract: 540,416. Endless-belt conveyers. ETABLISSEMENTS J. LAROCHE-LECHAT SOC. ANON. April 12, 1940, No. 6653. Convention date, April 17, 1939. [Class 78 (i)] Resilient rollers, for supporting the carrying run of belt conveyers, are supported so that their ends can move transversely across the belt under the action of the load. Figs. 1 and 3 show a hollow rubber roller, which may be reinforced by an internal metal helix, and has metal cups 5 moulded into its ends and tied by the rod 10. Projecting members 8, which run on ball bearings in these cups, are perforated to engage the upper parts of supporting members 4 which can yield under strain in a vertical plane at right-angles to the run of the belt, thus allowing the ends of the rollers to move similarly.
Patent GB-1491984-A (GB)
Title: Tyre cutting apparatus and method
IPC: B26D1/00
Filed: 1975-02-17
Abstract: 1491984 Shearing AL-JON Inc 17 Feb 1975 [24 June 1974] 6672/75 Heading B3W Apparatus for cutting through a tyre 14 mounted on a wheel rim 18 by steel cables 20, 21 comprises a movable blade 84 and fixed blades 110, 122, the blades in the open position shown having their cutting edges spaced to receive the tyre 14, an hydraulic cylinder 72 pivoting the blade 84 clockwise about a pivot 94 to a closed position in which it has cut through the tyre and wheel rim 18, Fig. 4 (not shown). As the blade is moved, the space between upper portions 87, (115) and (127), Fig. 7 (not shown), of the cutting edges is reduced, preventing the tyre from being forced upwardly as the blades are closed. Integral with the blade 84 is a finger 96 which cleans the area between the blades 110, 122 during the opening movement of the blade 84. As the blades reach the closed position a stop 152 on blade 84 clamps the tyre material against a stop 156 on a bracket 160 which is pivoted to the fixed blade 110 and anchored to the base 54 of the apparatus by a spring 168. With the tyre material so clamped, the fork lift supporting the car with the tyre in the bight of the blades is raised to remove the wheel from the tyre.
Patent GB-1262927-A (GB)
Title: Material storage and retrieval
IPC: B65G1/137
Filed: 1969-02-07
Abstract: 1,262,927. Programmed control of warehousing. WESTINGHOUSE ELECTRIC CORP. Feb.7, 1969 [Feb.19, 1968], No.6758/69. Heading G3N. An automatic warehousing system comprises a computer having a memory core for controlling retrieval or storage; the core incorporates two sections, one being a programming core and the other an inventory core which is updated after an effective storage or retrieval. As shown, an automatic warehouse comprises bins B in racks BR arranged in aisles AS. Retrieval and storage is effected by cranes CR movable horizontally and vertically along the aisles. The material to be stored or retrieved is contained in trucks, not shown, which are translatable by the cranes to the bins or input and output stations IS, OS. A computer is connectable to a number of input consoles each of which is provided with a storage card reader in which is deposited a card accompanying a truck TR. A console has an interrupt button PBA, for entering a programme change, and indicators CRI, FLT indicating correct or faulty card reading respectively. The computer is programmed to control the cranes, through limit switches HLS, VLS, at intervals and for predetermined durations. A diagnostic programme is enabled by excessive time for an operation or failure to find a stored truck to be retrieved. The computer memory incorporates an inventory core in which is impressed warehousing operations as they are carried out. The computer is also connected to a tapeimpressing mechanism and inverter, providing a print-out of the inventory as determined by a sub-programme; a tape-reader, whereby information is re-established in the memory on accidental loss, and a teletypewriter KSR for purging or updating information in the inventory core.
Patent GB-1039612-A (GB)
Title: Control method and system therefore for moving bodies
IPC: F41G7/30
Filed: 1963-02-20
Abstract: 1,039,612. Automatic steering control. BOLKOW G.m.b.H. Feb. 20, 1963 [Feb. 21, 1962], No. 6831/63. Heading G3R. In a control system for a missile designed to attack a moving target, the missile is initially guided by signals from the ground to the vicinity of the target, after which the missile is controlled by a target seeking system which it carries itself. The missile target seeking system,which may be of the infra-red type, is gyrostabilized and is maintained directed in a selected direction during the initial guidance by ground signals. On reaching the vicinity of the collision point the missile target seeking system is adjusted, by ground signals, so as to be directed at the target. Interference by jamming signals is reduced because of the briefness of the instruction transmission interval required to adjust the target seeking system. The system may be applied to missile guidance arrangements which either direct the missile along a straight path to a collision point or direct the missile along a curved path in which the sight lines to the target and missile from the ground correspond.
Patent GB-967490-A (GB)
Title: Improvements in tap connectors
Inventor: FEWELL PETER WILLIAM CHARLES
IPC: F16L37/48
Filed: 1963-02-20
Abstract: 967,490. Hose connectors. HOZELOCK Ltd. May 24, 1963 [Feb. 20, 1963], No. 6877/63. Heading F2G. A tap connector includes a plastic or rubber sleeve 1 with a recessed inner wall 9 and an external clamp 7. The hose is held to the body 2 of the connector, as in Specification 714,028, by a nut 4 which can be screwed on to the body to compress an annular coiled spring 5 on to the hose. A wing nut 6 turns the worm drive which operates the clamp 7.
Patent GB-1049312-A (GB)
Title: Preparation of arabinofuranosyluracils
Inventor: HUNTER JAMES HARDIN
IPC: C07H19/06
Filed: 1964-02-19
Abstract: Novel compounds of general Formula III <FORM:1049312/C2/1> (wherein R is H, halogen or alkyl), which are prepared by treating a compound of general Formula II <FORM:1049312/C2/2> (wherein R1 is alkyl, aralkyl, aryl, alkaryl or halo-aryl and X is an alkylidene or aralkylidene blocking group) with a base, are used in a process for the preparation of compounds of the general Formula IV <FORM:1049312/C2/3> to which they are converted by the action of dilute aqueous acid.  The compounds of Formula II above are prepared by hydrolysis of a compound of Formula I <FORM:1049312/C2/4> Compounds of Formula I above are prepared by reaction of an R1-sulphonyl halide with compounds of Formula I except for having OH in place of -O.SO2.R1, which are themselves prepared by reaction of a 1-b -D-xylofuranosyl-uracil with e.g. a ketone such as acetone.
Patent GB-648954-A (GB)
Title: Improvements in and relating to cooling means for electric discharge lamps and associated equipment
IPC: H01J61/52
Filed: 1946-03-06
Abstract: 648.954. Electric discharge lamps. GENERAL ELECTRIC CO., Ltd., and NELSON, E. H. March 6, 1946, No. 6987. [Class 75(iv)] [Also in Group XL(a)] A 'high-pressure discharge lamp 6 is mounted in its casing 1 within a cooling-air duct 4 part of which is constituted by a lens 5 or mirror, the arrangement being such that cooling air flows over the lamp envelope and also over both sides of the lens or mirror. The duct 4 passes through the top of the casing 1 to connect with a blower which causes the cooling air to flow downwardly in the duct and upwardly through the annular space between the duct and the casing to escape through an annular aperture 12 or a row of holes at the top of the casing. The H.P.M.V. lamp 6 comprises two electrodes 7, 8 arranged vertically and connected to conductors 9, 10 sealed into the quartz envelope of the lamp. If the direction of air flow is reversed, as may be desired, the housing is inverted so that the upper part of the lamp continues to receive more cooling than the lower part. The lens 5 extends for 360 degrees around the lamp but a lens of smaller angle may be used and the space previously occupied by the lens filled by the metal of the duct. A mirror may be used in addition to such a smaller lens. Several rings of lenses and shutters may be provided around the lamp and arranged so that the cooling air flows in a zig-zag path. The light is emitted through an annular window 3 in the casing.
Patent GB-1010082-A (GB)
Title: Purification of zinc sulphide
Inventor: VODDEN HERBERT ALFRED
IPC: C01G9/08
Filed: 1963-02-21
Abstract: Ionic impurities are removed from zinc sulphide by contacting an aqueous suspension thereof with an anion-exchange resin in the hydroxyl form, preferably one having quaternary ammonium functional groups, and a cation-exchange resin in the hydrogen form, preferably one having sulphonic acid functional groups, in the form of membranes in an electro-dialysis cell.  The cation-exchange membrane, e.g. Permaplex C20, separates a cathode compartment containing dilute acid, e.g. 0.2N H2SO4 from a middle compartment containing the suspension to be treated, while the anionexchange resin, e.g. Permaplex A20, separates an anode compartment containing dilute alkali, e.g. 0.2N NaOH, from the middle compartment. By applying a potential difference of 250 volts D.C. across two platinum foil electrodes immersed in the outer compartments, the conductivity of a stirred suspension of 3 gms. zinc sulphide in 300 c.c. water may be reduced to 1.6x10-6 ohm-1 cm.-1 in seven hours, and purified zinc sulphide recovered therefrom.ALSO:Ionic impurities are removed from zinc sulphide by contacting an aqueous suspension thereof with an anion exchange resin in the hydroxyl form, preferably one having quater-nary ammonium functional groups, and a cation-exchange resin in the hydrogen form, preferably one having sulphonic acid functional groups.  The resins may be in the form of granules, and contact may be by stirring followed by filtration of the zinc sulphide suspension from the resin, or in a column packed with a uniform mixture of the two types of resin, or the two types may occupy upper and lower zones of the column.  The zinc sulphide is preferably subjected to a preliminary purification by water washing. Purified zinc sulphide may be separated by, e.g. centrifuging from a solution whose conductivity has been reduced to, e.g. 3 x 10-6ohm-1cm.-1 Alternatively the resins may be in the form of membranes in an electrodialyses cell (see Division C7).
Patent GB-104424-A (GB)
Title: Improvements in Hopper Apparatus for Distributing Sand on Tramway Rails.
Inventor: FORBES HARRY ASHBURN
IPC: B61C15/10
Filed: 1916-05-17
Abstract: 104,424. Forbes, H. A. May 17, 1916. Sand, distributing on wheel tracks. - Sanding- gear for tramway vehicles, comprising a hopper and pedal arrangement, is provided with a rotary apparatus consisting of a pinion spindle F carrying a revolving plate D with spikes above and a wire G and fish-tail plate below, operated electrically or by foot. The operating-rack E is controlled by the spring S.
Patent GB-894969-A (GB)
Title: A control apparatus for positioning an output member as a function of one or a plurality of signals
IPC: F15B9/08
Filed: 1960-02-29
Abstract: 894,969. Fluid-pressure servomotor-control systems. BENDIX CORPORATION. Feb. 29, 1960 [March 24, 1959], No. 7067/60. Class 135. Axial and rotational movements of a threedimensional cam 12 in response to any two input signals, e.g. pressure, temperature, speed or any other engine-operating condition, positions a valve 30 which controls the position of a power device 28 supplied with fluid through a pressure regulator 32 and connected to a shaft 40 having two three-dimensional cams 42, 44, which are mirror images of each other, each co-operating with a pivoted follower 46, 60, respectively. The followers are interconnected by a link 64, and follower 46 is connected to a piston valve 50 which controls the movement of a power piston 80 having a feed-back constituted by a flexible cable 86, a spring-loaded wheel 88 and gears 92, 94, the latter being on the shaft 40 whereby the valve 50 is returned to the neutral position shown. The valve 50 is loaded by a spring 58 which urges the follower 46 into contact with cam 42. The high-pressure fluid supply to the valve 50 may be obtained from the device 28 via a pipe 74, and the low-pressure supply or exhaust, which is admitted to the valve by an opening 78, is formed by the fluid in the interior of the case 10 which leaks from valve 30 and serves to lubricate the moving parts therein; the case 10 is connected to a reservoir, not shown. Normally the follower 46 effects operation of the valve 50, the link 64 maintaining the follower 60 out of contact with cam 44 ; should the valve 50 meet resistance to rightward motion which is greater than can be overcome by the spring 58 the follower 46 rotates out of engagement with cam 42 and the valve 50 is then controlled by follower 60 which moves into contact with cam 44.
Patent GB-444715-A (GB)
Title: Improvements in or relating to apparatus for automatically stabilising the speed of aircraft
IPC: G05D1/06
Filed: 1935-03-07
Abstract: 444,715. Fluid pressure servomotor - control systems. SIEMENS APPARATE UND MASCHINEN GES., 4, Askanischer Platz, Berlin. March 7, 1935, No. 7170. Convention date, March 7, 1934. [Class 135] [Also in Group XIX] Apparatus for stabilizing the land speed of aircraft by controlling the altitude in accordance with means for measuring the land speed comprises a servomotor 33 for adjusting the elevator 34, a controlling piston 17 for operating the valve 32 of the servomotor, and a gyroscopic apparatus G for measuring the land speed. The apparatus G comprises a gyroscopic pendulum with two gyroscopes 41, 411, with opposite directions of rotation mounted in a frame 1, suspended at 2<1>, 211 and their precessional axes coupled together by segments 5<1>, 511, which precess according to the land speed of the craft, being compensated for the earth's rotation by a magnet 8. This precessional movement is transmitted by an electrolytic system 9, 10, to operate a needle valve 15 to actuate the differential piston 17 which operates the control rod 22 of the servomotor. Within the piston 17 is a further piston 21a on the rod 22 with centralizing springs 22a which moves a distance proportional to the speed of adjustment of the piston 17 and thus provides an additional adjustment in accordance with the rate of variation of the land speed of the craft. The movement of the valve 15 is limited by the movement of a pin 35 on the lever 14 in a loop 36 attached to the diaphragm 37 of a differential manometer which measures the relative air speed through a Pitot tube 38 so that below or above a certain relative flying speed the diaphragm 37 takes over the altitude control. The final control valve 32 of the servomotor may also be further controlled by a turning pointer gyroscope 27 to compensate for angular velocity of the aircraft about its transverse axis. An automatic altitudestabilizing device controlling the output of the driving motors may be combined with the apparatus described so that alteration in the altitude due to variation of land speed is immediately compensated for by adjustment of the motors to restore the original altitude.
Patent GB-512624-A (GB)
Title: Improvements relating to the manufacture of bearings
IPC: F16C33/14
Filed: 1938-03-08
Abstract: 512,624. Alloys. BROWNBANK, H. L. March 8, 1938, No. 7213. [Class 82 (i)] [Also in Group XXII] Bearing shells are lined with an alloy of copper containing 20-45 per cent. of lead and also, if desired, 1-12 per cent. of tin with or without some nickel.
Patent GB-1453763-A (GB)
Title: Fuel vapour emission control device for motor vehicles
IPC: F02M25/08
Filed: 1974-02-18
Abstract: 1453763 Absorbing petrol vapours FORD MOTOR CO Ltd 18 Feb 1974 [2 March 1973] 7238/74 Heading B1L In an absorber C for petrol vapours from petrol tank B and I.C. engine A during idle or slow engine speed conditions, the baffle 31 enables more vapour from inlet 33 to be absorbed in charcoal bed 26 which can be purged by a positive air flow from air inlet 17 caused by a vacuum applied to 14 when required from the air cleaner of the engine.
Patent GB-423545-A (GB)
Title: Improvements in or relating to circuit interrupters
IPC: H01H85/36
Filed: 1934-03-09
Abstract: 423,545. Fusible cut-outs. WESTING- HOUSE ELECTRIC & MANUFACTURING CO., East Pittsburg, U.S.A.-(Assignees of Rawlins, H.le G. ; 710, Coal Street, Wilkinsburg, Pennsylvania, U.S.A.) March 9, 1934, No. 7508. Convention date, April 8, 1933. [Class 38 (i)] A cut-out comprises a renewable unit 33 having two passages of different diameter lined with boric acid to extinguish an arc formed therein and having mechanical means whereby the establishment of an arc in the passage of larger diameter gives rise to an arc in the other passage. A fuse 69, Fig. 2, is attached to a plunger 53 arranged in the larger passage 51 in a liner 49 of boric acid in a fibre tube 45. The plunger 53 is attached to a spring 25, Fig. 1, that draws an arc through the passage 51 when the fuse 69 blows. A conductor 77 lying in the smaller passage 55 is also attached to the plunger 53 and is either placed in contact with a fixed conductor 79 or is itself secured between a hollow plug 61 and an insulating washer 67. When the arc is drawn out by the plunger 53 it will strike across to the conductors 77, 79 in parallel with the main arc, and a second arc will be produced in the smaller passage when the conductor 77 is drawn away from the conductor 79 or from the clamp at its lower end, the time delay in starting the second arc depending upon the overlap of the conductors 77, 79 or the slack in the conductor 77. The lower end of the cap 35 is closed by a frangible disc 85 and the fuse unit 33 is held in place in the glass or porcelain tube 15 by a hollow nut 39. In inserting the unit, the cap 23 is removed and the plug 27, to which the spring 25 is attached, is released by turning it until the mounting pin 109 passes down through slots in the member 7. After attachment to the plunger 53 the spring is drawn into place by a rod screwed into a socket in the plug 27.
Patent GB-102687-A (GB)
Title: Improvements in or connected with Making Up or the Manufacture of Ladies' Handbags, Purses, and the like.
Inventor: BURCH JAMES BENTLEY
IPC: A45C13/04
Filed: 1916-05-27
Abstract: 102,687. Burch, J. B. May 27, 1916. Hand and l i k e bags; purses.-In a hand-bag, purse, &c., the edges of the leather or other material D, Fig. 1, are held firmly between subsidiary frames A, B, one of which is pierced to form projections C, which are bent over after being passed through the leather and through slots E in the other subsidiary frame. The parts A, B are riveted or otherwise secured in a U- shaped bag-frame F. In a modification, the bagframe F has the sectional form shown in Fig. 2, and one of the parts A, B is omitted, the deep flange of the frame F being provided with the projections C or with the slots in which they engage. In another arrangement, a subsidiary frame A, Fig. 4, has a plain or ornamented rib H, against which the edge of the leather is butted before the leather and the frame A are clamped in the frame F.
Patent GB-402053-A (GB)
Title: Signal devices for traffic control
IPC: G08G1/096
Filed: 1932-03-15
Abstract: 402,053. Rotary distributers. HAILWOOD, E. A., Beacon House, Texas Street, Morley, near Leeds. March 15, 1932, No. 7622. [Class 38 (v).] Traffic-control signalling- devices include coloured signal lights wherein the lights are caused to shine steadily for part of their time of illumination and are caused to flicker for another part of their time of illumination so that warning is given before a change of signal. The lights may remain steady for three-quarters of their time of illumination and flicker for the remaining one-quarter before change of signal. Alternatively the signal lights may flicker during the greater portion of their time of illumination and may remain steady during the latter portion of their time of illumination. Any or all of the lights of a traffic control signalling device employing green, yellow and red lights are caused to flicker during part of their time of illumination by the apparatus shown in the drawing. A rotatable drum or drums D insulated at D and provided with a cam or cams C is or are mounted between terminal members T and T<1> insulated at T<x>. Spring fingers T<2> and T<3> connect the drum D and cam C to the terminals T and T<1>. The cam C has a portion of its face C<1> to give an even contact to produce a steady light and has another portion C<2> to give a broken contact to produce a flickering light.
Patent GB-1416344-A (GB)
Title: Method of recovering fluorine from aluminium reduction cell  waste gases
IPC: C01F7/50
Filed: 1972-02-18
Abstract: 1416344 Recovering fluorine values from waste gas ALCAN RESEARCH & DEVELOPMENT Ltd 30 Jan 1973 [18 Feb 1972] 7745/72 Heading C1A Fluorine values are recovered from the waste gas from an electrolytic reduction cell for the production of aluminium by entraining alumina particles in a stream of the waste gas for a contact time sufficient to react with 90% of the HF therein, separating a major proportion of the alumina above a predetermined size in a first separation stage and the minor remaining proportion of fine alumina particles in a second separation stage, the preselected size being such that the larger particles contain less than 0À1% by weight of benzene-soluble tar. The alumina preferably has an average particle size of 50- 100 microns, not more than 10% being less than 40 microns. Preferably the finest particles of the second separation, containing a high proportion of iron particles, are separated, and the remainder heated, e.g. to 500-600‹ C. to reduce the carbon content and supplied with the coarser particles, to the aluminium cells: the exhaust gas from the heat-treatment may be recycled to the stream of waste gases between the separation stages, additional alumina being supplied at the same point.