baber/WOPTO huggingface dataset:
Patent GB-778855-A (GB)
Title: A turbine rotor for driving an impeller
Inventor: DAVIDSON IVOR MACAULAY
IPC: F04D25/04
Filed: 1954-08-20
Abstract: 778,855. Screw propeller blades.. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. Aug. 11, 1955 [Aug. 20, 1954], No. 24359/54. Class 114. [Also in Groups XXII and XXVI] A turbine-driven propeller has a row of turbine blades mounted at their radially inner ends on a circumferentially continuous support ring extending around the tips of the propeller blades and a torque-transmitting connection between the ring and the propeller blades which will permit free radial expansion of the ring relative to the blades. The invention is described with reference to a fan comprising a hub 1 supporting a row of axial flow impeller blades 2, e.g. aircraft propeller blades, and having a row of turbine blades 3 mounted between an inner support ring 4 and an outer shroud ring 5. The impeller casing 6 is supported from the hub 7 by radial struts 8. A row of guide vanes 9, which may be adjustable, is also provided. The inner support ring 4 has a number of radially inwardly extending tangs 17, which engage in slots 18 formed in the leading edges of the impeller blades. The slots are closed by filler pieces 19. The inner support ring is so dimensioned that, when cool, it rests on the impeller blade tips. The tangs 17 are free to slide radially in the slots 18 and under running conditions there is a small clearance between the ring 4 and the impeller blade tips. In a modification, the impeller blade tips may be connected by a continuous ring and the tangs 17 engage slots in the ring. In another alternative the tangs may be fast with the impeller blades and slide in slots in the turbine support ring 4. The tangs 17 may transmit sufficient heat from the turbine blades to the impeller blades to have a valuable anti-icing effect.
Patent GB-845816-A (GB)
Title: Driving means for wheel balancing machines
IPC: G01M1/06
Filed: 1958-07-30
Abstract: 845,816. Driving means for wheel-balancing machines. BEISSBARTH, H. H. July 30, 1958, No. 24500/58. Class 106 (2). In order to drive wheels a, c, of different sizes at different speeds for balancing purposes, a motordriven roller b of non- uniform cross-section engages the rim of the wheel being balanced. The roller b may be conical or may have its diameter varying in a different manner and is movable both axially and radially.
Patent GB-446230-A (GB)
Title: Improvements in or relating to inertia-operated electric switches for use on vehicles and other moving bodies
IPC: B60Q1/44
Filed: 1935-09-02
Abstract: 446,230. Control systems for vehicle lamps. CARPMAEL, A., 24, Southampton Buildings, Chancery Lane, London.-(Soc. Anon. Tubest; 6, Rue Euler, Paris) Sept. 2, 1935, No. 24506. [Class 38 (iv)] [See also Group XXXVII] An inertia - operated switch comprising a pendulum 1, carrying a mass of soft iron, and a magnet 4 for holding the pendulum in the circuit-closing position after it has been brought into this position, is used in a system in which the lighting circuit of a vehicle, including lamps 17 and a battery 16, is automatically controlled by a lightsensitive relay 15. When the vehicle is driven into a garage, the switch 1, 4 is opened by hand, but it closes automatically and puts the circuit under the control of the relay 15, when the vehicle is driven out of the garage.
Patent GB-502146-A (GB)
Title: Improvements relating to domestic fire grates or stoves
IPC: F24B1/193
Filed: 1937-09-09
Abstract: 502,146. Domestic fireplaces. BILLING- TON, W. J., and TUBB, W. D. Sept. 9, 1937, No. 24543. [Class 126] In a domestic open fireplace with an ashpit 9 with a sloping bottom below the hearth level, and a fire-bottom 18 provided with a front or guard 13 formed with an air-inlet. 15 and arranged to rept on the hearth level, the fire-bottom is in the form of a portable firebasket with legs 14 provided on its rear edge to support it in the ashpit, and sufficient clearance is provided between the front of the fire-bottom and the hearth to let air pass freely to the underside of the fire-bottom. The fire-bottom 18 and guard 13 may be integral, as shown, or may be connected by the engagement of downwardly projecting pins at the front of the fire-bottom with holes or slots in rearwardly projecting lugs on the guard. The ashpit may be of metal, as shown, or formed-in a fireclay block. The inlet 15 may be controlled by a hit-and-miss device The ashpit may contain a removable sheetiron ashpan.
Patent GB-1529545-A (GB)
Title: Circuit for generating a saw-tooth current in a coil
IPC: H03K/
Filed: 1977-06-13
Abstract: 1529545 Line deflection circuit INDESIT INDUSTRIA ELETTRODOMESTICI ITALIANA SpA 13 June 1977 [15 June 1976] 24555/77 Heading H3T In a known circuit, Fig. 1, to produce a sawtooth waveform, the addition in parallel with D 2  capacitor C 3 , Fig. 2, which is resonant with L a , the period being of the order of the sawtooth period, permits the omission of the secondary winding S and the lower diode D 2 . Energy stored in L a  during the trace is passed through C 3  to the resonantly returning circuit LC 1 C 2  during retrace to make up the losses. It is stated that the amplitude of the sawtooth current can be controlled by varying L a , C 3 , or by another inductance (not shown) in series with C 3 , the latter helps to control inrush currents into C 3  when T 1  first turns on.
Patent GB-351308-A (GB)
Title: Improvements in or relating to tins, canisters and like metal containers
IPC: B65D6/36
Filed: 1930-08-16
Abstract: 351,308. Tins &c. ROBINSON, F. G., Springfield House, Sutton-on-Hull, Yorkshire. Aug. 16, 1930, No. 24559. [Class 66.] The corners of rectangular petrol or other tins &c. are strengthened by securing thereover, by soldering or otherwise, sheet metal stampings or pressings 1, 2, channelled at 5 to accommodate the beaded or rolled edge 6 of the tin. The stampings &c. may be corrugated, and may have portions cut away to facilitate attachment to the tin.
Patent GB-908254-A (GB)
Title: Improved playing device for endless sound tapes in cassettes
IPC: G11B15/665
Filed: 1961-07-06
Abstract: 908,254. Sound tape cassettes. TEFI WERKE G.m.b.H., [trading as TEFI WERKE G.m.b.H. & CO. KOMM.-GES.]. July 6, 1961 [July 13, 1960], No. 24561/61. Class 40 (2). An automatic sound record playback apparatus comprises a casing with a slotted opening through which a cassette containing an endless sound tape is inserted, and automatic means interacting with the cassette and tape in required sequence. The tape may be provided with a single spiral track or parallel multitracks and may comprise mechanical or magnetic sound recordings. The coil of tape is supported in a known manner on a rotatable support inside the cassette 4 and a loop 17 of tape passes from the inner to the outer periphery of the coil through apertures 16 in the cassette. In one embodiment the cassette is passed through an aperture 3 in the casing on to a hinged platform 7 in which position a sliding member 18 enters behind the loop 17 and pulls it to an extended position 17<SP>1</SP>. The member 18 is of sufficient width such that when the hinged platform 7 is lowered the loop of tape drops to the broken line position shown in Fig. 4, after which a tensioning roller 21 is moved to position 21<SP>1</SP> to pull the tape into driving engagement with a capstan 11, and a pick-up 22 (or a magnetic head) engages the record surface. In a second embodiment, Fig. 5, the hinged platform 7 is omitted and the capstan 11 and the coupling cone 13 for the rotatable tape support are moved axially to and from the operative positions.
Patent GB-144170-A (GB)
Title: A machine for re-sharpening gramophone needles
IPC: B24B19/16
Filed: 1919-10-08
Abstract: 144,170. Ludford, J. J. A. Oct. 8, 1919. Portable turning-opparatus. - A machine for resharpening gramophone needles comprises a frame E in which is journaled, in guides G, a bar F adapted to hold the needle H and rotated, through gear wheels A, I, by means of a handle J, a piece of file D being pressed up against the needle during its rotation. The file is mounted in a shoe C fixed to an arm B pivoted at K to the frame and pressed upwardly by a spring L.
Patent GB-1151670-A (GB)
Title: New Petroleum Resins
Inventor: BROCA JACQUES
IPC: H02P7/29
Filed: 1968-05-23
Abstract: 1,151,670. Petroleum resins. ESSO RESEARCH & ENG. CO. 23 May, 1968 [12 June, 1967], No. 24678/68. Heading C3P. Petroleum resins are prepared from light steam-cracked naphtha boiling below 70‹ C. in the presence of a liquid catalyst which is a mixture of (a) aluminium halide, (b) hydrogen halide and (c) an aromatic hydrocarbon. Components (a) and (b) are preferably chlorides and (c) is mesitylene or a xylene-ethylbenzene mixture.
Patent GB-203194-A (GB)
Title: Improvements in machines for tightening up plates prior to rivetting, welding, and the like
IPC: B25B31/00
Filed: 1922-09-13
Abstract: 203,194. Hallett, F. N. Sept. 13, 1922. Riveting.-A plate clamping machine by which plates &c. are drawn together and temporarily held to provide for permanent connection by rivets, bolts, &c., comprises a fluid-pressure cylinder, a pull-rod passing therethrough, pistons in the cylinder for operating the rod and gripping means actuated independently of the rod. Opposed pistons 2, 3, guided on twin hollow rods 4, slide in the cylinder 1 and are pressed apart by springs 5. Toggle levers 20 are pivoted to the pistons at 22, to the pull-rod 7 at 24, and to a sleeve 10 at 9. Bevel-closing clutch jaws 18 are operated by a pneumatic piston 16 working in a head 13 on the end of the pull-rod. The compressed air is controlled by a rotary handle 31 connected to a plug-valve 30 which first admits air from a supply pipe 34, through a flexible pipe 38 and the pull-rod to the piston 16, closing the jaws on a temporary bolt 42, and subsequently through a pipe 26 and the hollow guide-rods to both ends of the cylinder, whereby the bolt is drawn through a hole in the plates 40. A wedge 45 then secures the bolt in its tightened position, and the clamp is released by rotating the valve and connecting the passages 26, 38 to the atmosphere.
Patent GB-448312-A (GB)
Title: Improvements in transformers for feeding luminous tubes
IPC: H01F38/10
Filed: 1935-09-05
Abstract: 448,312. Transformers. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN, Emmasingel, Eindhoven, Holland. Sept. 5, 1935. Nos. 24775, 24776, and 24777. Convention dates, Oct. 3, 1934, June 25, 1935, and June 25, 1935. [Class 38 (ii)] The winding of an auto - transformer for feeding luminous discharge tubes is divided into two parts 1, 2 spaced apart on a shell-type core 3 with which is associated magnetic shunts 6, 7 located between the winding parts. The ratio between the numbers of turns of the parts 1, 2 may vary from 1:1 to 2 : 3. The supply circuit may be connected across either the whole or a tapped portion of the part 1. Additional windings 14, 15 closely coupled with the part 1 may be provided for supplying cathode heating current to the discharge tubes. Further, a winding 16 in series with the main winding may be provided for supplying ignition voltage to the discharge tubes.
Patent GB-967646-A (GB)
Title: A new or improved apparatus for controlling the removal of articles from a conveyor
Inventor: WALKER ALLAN BROUGH
IPC: B65G47/29
Filed: 1961-07-10
Abstract: 967,646. Vibratory bowl conveyers. TUDOR FOOD PRODUCTS Ltd. July 10, 1962 [July 10, 1961], No. 24920/61. Heading B8A. Articles are removed singly from a stream of articles passing along a spiral trackway 2 in a vibrating bowl conveyer by the conjoint operation of an extractor 14 and a stop 17. The extractor 14 has two limbs-a hooked limb 15 which normally extends across the trackway 2 to entrain the leading article and a straight limb 13 which normally fills part of an opening 3 in the wall of the conveyer bowl. The stop 17 normally closes the remainder of this opening. The lever system illustrated is operable, on clockwise movement of operating handle 26, to move the stop and extractor about their respective pivots 9 and 10 to bring them into the position shown so that the extractor delivers the entrained articles through the opening 3 to a take-away shoot and the stop temporarily prevents further movement of articles towards the extractor. The handle 26 may be automatically operated whenever a package for an article is presented to the shoot and a return spring 29 is effective to reset the apparatus to its normal condition. The invention is particularly applicable to the handling of paper twists containing salt for potato crisp packets and for this application the lower edge of the extractor limb 15 is bevelled to prevent the paper being caught between it and the subadjacent trackway.
Patent GB-753422-A (GB)
Title: Improvements in or relating to power assisted hydraulic braking systems
IPC: B60T13/24
Filed: 1954-08-27
Abstract: 753,422. Hydraulic brakes. BENDIX AVIATION CORPORATION. Aug. 27, 1954 [Aug. 31, 1953; Feb. 3, 1954], No. 34986/54. Class 103 (1). In order that the liquid that it is necessary to supply to the low pressure input side of the slave cylinder of a booster unit for hydraulic brakes may be kept to a minimum the orifice 26 between the input and output sides of the piston 20 is arranged to be closed quickly by valve 46 operated through rod 47, 471 by the initial. movement of the power piston 37 before a clearance 59 has been taken up and the thrust is transmitted through plunger 40 which is integral with the slave cylinder piston. The volume of the input liquid is also reduced by thickening the rod 47, 47<SP>1</SP> at the part 48 and the interposition of the resilient cup-shaped member 61 between the two parts 47, 47<SP>1</SP> of the rod quietens the operation of the unit. The servo-piston control valve may be of the type shown in Fig. 4, having coaxial inner and outer pistons 122 and 123 of which the latter, being more sensitive to the control pressures, actuates the valve initially to an extent limited by the stopring 129.
Patent GB-251313-A (GB)
Title: Improvements in and relating to the manufacture of dyestuffs and intermediates
IPC: C07C45/64
Filed: 1924-10-21
Abstract: 251,313. Thomson, R. F., Thomas, J., and Scottish Dyes, Ltd. Oct. 21, 1924. Oxy- and alkoxy-benzanthrone; dibenzanthronyl; dibenzanthrone dyes.-A mixture of an oxybenzanthrone and a dibenzanthronyl is obtained by treating benzanthrone with oxidizing agents in sulphuric acid solution. The oxybenzanthrone can be alkylated to alkoxybenzanthrones which yield vat dyestuffs upon alkali fusion. The dibenzanthronyl differs from that obtained by treating benzanthrone with mild alkaline condensing agents and yields dibenzanthrone in a pure form upon alkali fusion; by further oxidation only an insoluble body is obtained. According to examples, benzanthrone is oxidized with manganese dioxide, the product separated into its constituents by means of alkali, the oxybenzanthrone methylated with dimethylsulphate in nitrobenzene, and the methoxybenzanthrone and dibenzanthronyl respectively converted into vat dyes by fusion with alcoholic potash; the dyes may be purified by precipitation from sulphuric acid. Specifications 181,304 and 218,255 are referred to.
Patent GB-748838-A (GB)
Title: Improvements in or relating to a yarn-storage device for warping frames
IPC: D02H13/00
Filed: 1953-09-10
Abstract: 748,838. Warping yarns. SAILER, L., and SAILER, J., [trading as SAILER KOMM.- GES. WIRKMASCHINENFABRIK J.]. Sept. 10, 1953 [Sept. 25, 1952], No. 25074/35. Class 142 (1). A yarn storage device interposed between a creel and a warping machine, to take up slack when the beam is reversed, comprises falling rollers 31a, 31b normally supported clear of the yarns 6 by half bearings 29 on a frame 25 ; when the frame is lowered by a handle 19, the bearings are shogged by a ramp 32, leaving the rollers hanging in loops of yarn. Before the frame is lowered, another handle (not shown) is operated to depress a rod 14, pivoted at 12, thereby drawing yarn from the creel (situated to the left of the Figure) to form a loop 6a, whereupon the yarns are clamped at 5. When the falling rollers are lowered as described above, the loop 6a straightens out (the rod 14 rising against spring loading) to provide an initial source of slack to obviate the excessive tension that would otherwise occur due to the rollers pressing on taut horizontal yarns. The falling rollers may be of slightly different weights so that, when the beam is turned backwards, they form loops in the yarns successively instead of simultaneously. When the beam is turned forwards again and the rollers have all risen to the top of their travel (as shown at 31a), the handle 19 is operated, whereby the frame 25 is moved sideways and upwards to pick up the rollers in the bearings 29 and lift them clear of the yarns. The slack thereby produced is taken up by the spring-loaded rod 14 re-forming the loop 6a; the other handle (not shown) is then operated to release the clamp 5 and lift the rod 14, which is then held clear of the yarns by a latching action of its operating linkage.
Patent GB-521490-A (GB)
Title: Improvements in and relating to noise limiting circuits for carrier wave communication systems
IPC: H03G11/04
Filed: 1938-08-26
Abstract: 521,490. Wireless receiving circuits. THORNTON, A. A., (Philco Radio & Television Corporation). Aug. 26, 1938, No. 25114. [Class 40 (v)] The effect of static and like interference in a wireless receiver is limited by applying the demodulated output from a detector to a diode which is maintained conducting only for signal amplitudes below a predetermined value. A portion of the' modulated carrier from E is detected in the valve V1, the demodulated A.F. output across the load 9 being taken off through the diode 3. Diode 3 receives a positive bias from the output of detector V2, which is fed with the full voltage of source E, the lowfrequency output being removed by filter 12, 13. Thus when the degree of modulation rises above a value determined by the relative signal amplitude fed to V1 and V2, or when a noise impulse is received, the cathode of VI moves positively to an extent sufficient to render the diode 3 non-conducting, and the modulation frequency output is cut off. A variable bias on V1 obtained from a potentiometer 8 is employed to make the cathode potentials of V1 and V2 equal in the no-signal condition. The infinite impedance detectors V1, V2, may be replaced by diodes, Fig. 2 (not shown).
Patent GB-1465448-A (GB)
Title: Cartridge for sealing anchor bolts
IPC: E21D20/02
Filed: 1975-06-12
Abstract: 1465448 Cartridge for use with anchor bolts SAEI CELTITE 12 June 1975 [16 Jan 1975] 25189/75 Heading F2H A cartridge for sealing anchor bolts in mine galleries containing a resin composition composed of a charge of hardenable resin with a hardening accelerator and one or more inert fillers and a charge of hardening catalyst and one or more inert fillers is characterized in that the charge comprising the catalyst and one or more inert fillers is disposed over a length of the cartridge which is small with respect to the total length of the cartridge and towards a front end thereof and has a cross-section substantially equal to the cross-section of the cartridge. The zone occupied by the charge comprising the catalyst may occupy 10% of the length of the cartridge. In use, a plurality of such cartridges may be used, the arrangement being such that the zones containing the catalyst are distributed at regular intervals one behind the other.
Patent GB-1193894-A (GB)
Title: Character Presentation Device for Phototypographical Apparatus
IPC: B41B27/00
Filed: 1968-05-27
Abstract: 1,193,894. Photographic type-composing apparatus. ELTRA CORP. 27 May, 1968 [3 July, 1967], No. 25209/68. Heading B6W. Any errors in the position of a character image projected from matrix 13 by lens 14 on to film 17 are connected by a pair of lenses (shown dotted) movable with respect to the optical axis. A required character is selected from the projected array by optical wedges 15 and mask 16. Use of wedges 15 gives rise to errors in the horizontal and vertical position of a selected character on film 17. Such errors are eliminated by a first horizontally movable lens and a second vertically movable lens (both shown dotted). The lenses are moved appropriate amounts by solenoids and mechanical linkages the amount of movement required for each character of the matric having been programmed into the device.
Patent GB-241885-A (GB)
Title: Improvements in furnaces for boilers or the like which are heated by powdered fuel
IPC: F23M5/08
Filed: 1925-10-09
Abstract: 241,885. Duquenne, C. Oct. 27, 1924, [Convention date]. Pulverulent-fuel furnaces; cooling.-Fusion of ashes is prevented in furnaces burning pulverulent fuel by a cooling screen comprising stationary conduits A through which air for combustion is circulated arranged in the lower part of the furnace. The conduits A are supported on I-beams 17 and built up of sections 18 connected by suitable joints. The conduits are protected by lateral refractory members 20 engaging with lugs 18<1> on the conduits and held in position by upper refractory members 19. Atmospheric air under the control of dampers 14 enters the conduits at the front of the furnace and is delivered through passages 15 and openings 16 in the fire-bridge to the combustion chamber. Instead of air being drawn through the conduits by the natural draught of the furnace it may be forced or circulated by other means. Air under the control of dampers is also admitted to the furnace through passages 12 and openings 11 in the side walls.
Patent GB-791698-A (GB)
Title: Improvements in carburetters for internal combustion engines
IPC: F02M1/00
Filed: 1955-09-02
Abstract: 791,698. Carburetters. GENERAL MOTORS CORPORATION. Sept. 2. 1955 [Sept. 21, 1954], No. 25263/55. Class 7(3) The fuel is delivered from a fuel supply chamber to a fuel well in which depends a tube to deliver fuel to the mixture passage, the tube having a partition plate which extends longitudinally therein from the outlet end thereof to divide it into two separate fuel delivery passages and being arranged so that the separate passages come into operation successively. The means for conveying fuel from the chamber 70 to the two venturi tubes 34, 36 is the same in each case and as shown in Fig. 3 that for supplying the tube 36 includes a fuel well 80 and a tube 90 which is divided into two fuel passages' by a partition 120. The valve 110 is operated by a rod 118 which is lifted by manifold suction during most operation with the throttle only partly open. As the throttles move toward open position the rod moves downwardly opening the valve 110. The tube 90 has a series of openings 94 and air is admitted to the top of the well through a vent passage 96. When the level of fuel in the well drops emulsion air flows through the openings 94 into the tube 90. The choke valve 30 is contiolled automatically in response to variations of engine section and tempeilature. Link 130 is pivotally connected to an arm secured to the choke valve shaft 32. At its lower end this link is connected to a fast idle mechanism.