baber/WOPTO huggingface dataset:
Patent GB-806885-A (GB)
Title: Apparatus for delivering liquid
IPC: F04D15/00
Filed: 1955-08-16
Abstract: 806,885. Dispensing liquids. STRUVER GESELLSCHAFT AGGREGATEBAU, A. Aug. 16, 1955 [Aug. 17, 1954], No. 23614/55. Addition to 796,870. Class 116 Two or more liquid delivery systems served by a single pump 1, Fig. 1, each have a by-pass valve 44 returning liquid to the suction of the pump and controlled by a pressure in the delivery pipe, and a delivery valve 17, 18 which is moved towards its closed position as the by-pass valve 44 opens. The system shown in Fig. 1 is generally similar to that described in Specification 788,818 but the valves 17, 18 are separate and are controlled by a difference in pressure caused by flow through the pipe 42 to the by-pass valve 44. The pressure difference may be derived as shown in Fig. 1 by a venturi 40 or may be derived from the drop in pressure adjacent a duct 56, Fig. 2, in the seating 46 of the by-pass valve 44. The by-pass valves 44 are controlled as described in Specification 788,818. Alternatively a combined delivery and by-pass valve may replace the separate valves 44 and 17 or 18. Thus in the valve of Fig. 3 a slotted hollow piston 58 co-operates with two seatings 62, 66 to divide the flow through inlet 92 between the delivery outlet 91 and a return 84 to the suction of the pump. A piston 60 controlling this valve is controlled similarly to the piston 49 controlling the by-pass valve 44 of Fig. 1. The slots 64 in the piston valve 58 may be shaped to provide a desired characteristic.
Patent GB-460509-A (GB)
Title: Process for the discontinuous operation of horizontal coke ovens
IPC: C10B27/00
Filed: 1936-08-31
Abstract: 460,509. Coke ovens. OTTO & CO., GES., DR. C. Aug. 31, 1936, No. 23799. Convention date, Sept. 13,1935. [Classes 55 (i) and 55 (ii)] In the operation of a horizontal coke oven battery provided with duplicate gas collecting mains 9, 19, one of which is utilized as a pressure equalizing channel when the other is used for gas collection, the role of each main is periodically exchanged by means of flap valves 28, 29 interposed between the common gas discharge pipe 26 and pipes 15, 25 leading from the mains respectively. Toothed wheels on the valve spindles mesh with the upper teeth of a rack, the lower teeth of which mesh with an independent toothed wheel capable of being turned by an external lever so that when flap valve 28 closes pipe 15, valve 29 opens pipe 25.
Patent GB-714313-A (GB)
Title: Magnetic lid lifter for can openers
Inventor: RHODES IRA P
IPC: B67B7/70
Filed: 1952-09-23
Abstract: 714,313. Can - openers. SWING - A WAY MANUFACTURING CO. Sept. 23, 1952, No. 23834/52. Class 66 A can opener of the wall .mounting type comprising a frame 20 upon which is slidably mounted a carrier 22 movable by means of a lever 24 so as to cause a cutter disc 30 to cooperate in conventional overlapping relationship with a traction wheel (not shown) rotatable by a crank handle 26 is provided with a magnetic can top lifter or holder 10. The holder 10 comprises a non-magnetic shell 40 having a flange 41 pivoted at 12 to the can guiding bracket 14 so as to lie immediately above a can 34 in position for opening. Within the shell 40 is resiliently suspended a magnet assembly 42 comprising two short bar magnets 46 clamped between recesses 52 in two poleplates 44 by means of a non-magnetic inverted U-shaped member 48 which has lugs 57 deformed after passing through suitable holes in the poleplates 44. A non-magnetic rivet pin 61 in the form of an inverted T carries a coil spring 62 which presses upwardly on the member 48. In use the magnet assembly is attracted to the can top so that it descends until feet 50 on pole-plates 44 contact the top. In this position, by virtue of the large aperture 58, the magnet assembly is free to. tilt with the can top and will lift the top (under action of spring 62) as soon as it is completely severed. The top lifter 10 may be swung about pivot 12 to the position shown by broken lines to facilitate cleaning of the opener mechanism.
Patent GB-629267-A (GB)
Title: Improvement in apparatus used for adjustment of radio apparatus
IPC: H03G3/20
Filed: 1946-08-12
Abstract: 629,267. Radio testing apparatus. MURPHY RADIO, Ltd., and BISSMIRE, H. G. T. Aug. 12, 1946, No. 23856. [Class 40 (v)] In radio testing apparatus, comprising an attenuator connected between a signal generator and an indicating instrument, a step-by-step switching device is provided for varying the attenuation in steps, the device being operated automatically when the current in the indicator circuit reaches a predetermined level. The arrangement facilitates adjustments which are necessary when trimming a receiver. In the Figure, the output from signal generator SG is applied through attenuator A to receiver R, the receiver output being measured in an indicating device OMI. A control circuit CC operates when the receiver output current reaches a predetermined level, to excite an electromagnetic rotary switch SM which varies the amount of attenuation in steps introduced in A. An indicator A1 may be provided to indicate the amount of attenuation involved at any given time.
Patent GB-1314851-A (GB)
Title: Gear assemblies
IPC: F16D23/06
Filed: 1970-05-18
Abstract: 1314851 Clutches TOYOTA JIDOSHA KOGYO KK 18 May 1970 [21 June 1969] 23927/70 Heading F2C In a double, or single, friction cone synchronizer including thrust-rods 33 engaging recesses 32 in the sliding clutch hub 21 to be axially slidable therewith, and engaging at their ends in recesses in the friction cone synchronizing rings, the thrust-rods are formed mutually integral to prevent tipping and jamming of the rods. Three rods 33 may be attached to a ring 40 by spring elements 41 manufactured integral with the ring or riveted thereto. The spring elements 41 may be extended to form the rods themselves, Figs. 6 (c), 6 (d) (not shown). Again, Fig. 8 (not shown), the thrust-rods (50) are formed by box-like spring elements built-up from a ring (55a) and operative in one direction only so that two rings are provided for a double synchronizer. Also, a thick ring (61), Fig. 9 (not shown), has axial tabs (62), (63) at its outer and inner peripheries engaging recesses in the synchronizing cone and clutch hub (18), relatively thin thrust-rods being attached to the ring. The thrust-rods may be relatively rigid, and the ring (71), Fig. 11 (not shown), crimped to provide the spring.
Patent GB-776000-A (GB)
Title: Ship's hull construction
IPC: B63B1/38
Filed: 1954-08-17
Abstract: 776,000. Reducing skin friction and modifying rolling. WILLIAMS, K. F. Aug. 5, 1955 [Aug. 17, 1954], No. 23930/54. Class 113. In a ship's hull including a generally flat bottom G beneath which two air tunnels V1, V2 are formed by three downwardly extending projections, two of which N1, N2 are extensions of the sides of the hull, the other M being arranged along the longitudinal centre line of the bottom, the tunnels extending over substantially the whole length of the hull, turbo-jets or the like in the hull convey air to inlets V provided in the bottom of the hull adjacent the bow to direct air into the tunnels in a direction substantially parallel with the bottom of the hull and towards the stern and to maintain a cushion of air in each of the tunnels. The projections N1, N2 are provided with ports R and have secured thereto bracing members Z1, Z2 with ports P and exterior baffle plates F1, F2 defining passages Q up through which air escaping from one or other of the tunnels passes when the ship rolls. A short distance from the stern the roof H of each tunnel slopes downwardly and has a perforated plate I spaced therefrom. A pendulum operated device varies the air pressure in one tunnel with respect to the other to counteract rolling of the ship. Detector units are provided to indicate presence of air in each tunnel and to control the admission of air at inlets V.
Patent GB-910014-A (GB)
Title: Improvements in or relating to automatic electrical control systems for rolling mills
IPC: B21B37/16
Filed: 1960-07-08
Abstract: 910,014. Automatic thickness control systems. SOC. DES SERVOMECANISMES ELECTRONIQUES, and SOC. NOUVELLE SPIDEM. July 8, 1960 [July 8, 1959], No. 24006/60. Class 38 (4). In an apparatus for controlling a roll of a rolling mill to produce a product having a desired thickness a roll adjusting device is actuated in response to an electrical signal which is dependent on the sum of a term dependent on the adjusting force exerted on the roll and a term comprising the integral with respect to time of the difference between a desired thickness and the thickness at delivery from the rolls. As shown, a gauge 8, measuring the difference between the thickness of a product from a roll 1 and a desired thickness, is connected to a servo-mechanism 9 driving a shaft 10 of a synchro 11 at an angular velocity proportional to the thickness deviation, so that the angular position of the shaft is a function of the integral with respect to time of the deviation. The pressure of a fluid in a jack 2 positioning roll 1 is measured by a member 12 which rotates a shaft 13 of a synchro 14 by an amount which is a linear function of the pressure. The stator of the synchro 11 is energized from an alternating current source 15 and the output of the synchro 11 constitutes the feed voltage of the synchro 14 so that the output of the synchro 14 is a control signal representative of the sum of the angular rotations of the synchros 11, 14. The control signal is fed to a synchro 6 having a shaft positioned by a control member 4 for the jack 2. The output from the synchro 6, representative of the difference between the control signal and the movement of the control member 4 is fed to a demodulator 16 controlling the member 4 so as to position the roll 1 through the jack 2 so as to maintain the thickness of the rolled product substantially constant. A jack 3, positioning the other end of the roll 1, is controlled by a follow-up system comprising a synchro 23, positioned by the member 4, connected through a differential synchro 18 to a synchro 7, positioned by a member 5, and a demodulator 21, the output of which controls member 5 actuating the jack 3. The differential synchro is positioned by a manual control 19 so that an operator can restore the parallelism of the roll with an adjacent roll, not shown.
Patent GB-1488852-A (GB)
Title: Carpet sweepers
IPC: A47L11/33
Filed: 1975-01-07
Abstract: 1488852 Carpet sweepers PRESTIGE GROUP Ltd 7 Jan 1975 [30 May 1974] 24088/74 Heading A4F A carpet sweeper comprises a casing within which is a brush rotated by movement of the sweeper over a supporting surface, and an auxiliary brush 33 extends across the front of the casing and is driven by drive means from a drive wheel 10. In the illustrated embodiment, two spaced wheels 10 are provided to support the front of the casing, and each has a boss 39 over which passes a drive belt 42 engaging a boss 41 at a respective end of the brush 33. The spindle 34 of the brush 33 is supported in open ended slots (38) Fig. 2 (not shown) in three webs (37) disposed at the ends and at the middle of the brush, respectively. Dust swept by the auxiliary brush 33 passes over a guide plate 43 into the front dust pan 5 of two pans 5, 6 into which dust is swept by a main brush assembly. The latter is driven by a wheel 9 and is constructed and arranged as described in Specification 1488853.
Patent GB-283562-A (GB)
Title: Improvements in brakes
IPC: F16D49/16
Filed: 1927-09-13
Abstract: 283,562. Waygood-Otis, Ltd., (Assignees of Anderson J. N.). Jan. 14, 1927, [Convention date,]. Electric and magnetic; blocks acting on drums; actuated or applied by springs; blocks and shoes; compensating for wear.-In a brake particularly for elevator hoisting machines of the type in which shoes are applied to a drum by springs and are released by electro-magnetic means, a magnet and an armature pivoted to one another are also pivoted respectively to the operating arms for the shoes. Means are provided for equalizing the clearance between the shoes, for maintaining the shoes concentric with the drums when released, for adjusting the clearance and for disconnecting a switch when the brake is released. The brake levers 4, 5 are pivoted at 6, 7 to the base 1 and shoes 16, 48 are pivoted at 17, 50 to the levers. The shoes are maintained concentric with the drum when in the released position by spring- controlled rods 20, 25, 53, 54. Spring-controlled pins 12, 46 on the lower ends of the brake levers 4, 15 cooperate, with lugs on the casing 1 to equalize the clearance between the shoes. The upper ends of the brake levers are drawn towards one another, so as to apply the brakes, by a rod 38 and springs 36, 44, the tension of which may be adjusted by nuts 40, 45. The armature 70 is carried by a lever 58 which is pivoted at 57 to the brake lever 4 and at 61 to the magnet casing 63. A lever 102 pivoted at 101 to the magnet casing and at 106 to the brake lever 5 is adjusted at its upper end by nuts 110 on a screwed spindle 104 fixed in the magnet casing so as to adjust the clearance of the brake shoes. The magnet core 97 attracts the armature 70 to release the brakes and, when the brakes are fully released, an adjustable screw 77 on the upper end of the armature lever 58 turns a pivoted switch lever 83 in an anticlockwise direction so as to separate contacts 87. 88. A lug 90 on switch lever 83 co-operates with a lug 91 on switch lever 84 so as to ensure simultaneous movement of the levers 83, 84 and contacts 87, 88 towards and away from one another. A spring 92 tends to keep the switch closed. The whole of the electrical operating and switch gear is supported by the pins 57, 106 and may be readily disconnected and replaced by a similar unit.
Patent GB-194330-A (GB)
Title: Improvements in speed-indicating apparatus for vehicles and other craft
IPC: G01P11/00
Filed: 1922-06-12
Abstract: 194,330. Horstmann, A. June 12, 1922. No Patent granted (Sealing fee not paid). Differential speed indicators; speed-indicator transmission mechanism.-In speed indicator.; of the type in which a vehicle-driven pointer is rotated at a variable rate over a timepiece dial to enable the speed attained to be compared with an average speed for which the instrument is set, the pointer A and the variable drive-indicating means L are arranged on the clock dial or on an extension plate in the plane thereof. The pointer A is driven from the shaft H by roller and dise F. T adjustable for size of vehicle wheel, and by roller and disc D, B, the roller D being adjusted for desired speed by an external knob P and rack and pinion connected with the indicating dial L or by a pivoted index hand. A pinion engaging a crown wheel with concentric rings of teeth may be used instead of the roller and disc D. B. To set the hand A initially, the knob U is pressed in to disengage disc B from roller D and is then turned so as to rotate the disc by means of a pair nf intermeshing pinions. The time hands can be set by knob X and the clock wound by knob V. The dial plate may also expose an odometer, as shown in Fig. 1.
Patent GB-898643-A (GB)
Title: Improvements in or relating to belting
IPC: B32B27/00
Filed: 1957-07-30
Abstract: 898,643. Laminates. LEWIS, J., and RUBBER IMPROVEMENT Ltd. Oct. 20, 1958 [July 30, 1957], No. 24168/57. Class 140. In machine belting of the type comprising a carcase of one or more plies of fabric containing natural and/or synthetic fibres impregnated or covered with a plastic composition and bonded to a substantially impermeable cover comprising outer layers and edge strips, moisture lost from the fibres during manufacture is restored by exposing the carcase to water through an incomplete or permeable cover, preferably by immersing the belting in water, and the cover is then sealed or completed. To effect penetration of the water the outer layers, or one of the layers, may be perforated, as by passing the belting between spiked rollers, or by use of a pricking tool, either before or during immersion of the belting, the perforations being subsequently closed by layers or coatings as of P.V.C., applied if necessary with heating and/or rolling, or by hot-rolling the belting. In further modifications, the perforated belting may be sprayed with water or immersion may be effected before the belting is complete, e.g. before application of the edge strips. Immersion is preferably effected to a depth of at least 2, preferably 4 feet, and the belting or the water may be heated before, or both together may be heated after, immersion. The water used may contain a wetting agent, a fungicide, a fireproofing agent, a preservative or any or all of such materials.
Patent GB-279609-A (GB)
Title: Improvements in straight and automatic airbrake systems
IPC: B60T13/26
Filed: 1926-09-30
Abstract: 279,609. Marks, E. C. R., (Christensen Air Brake Co.). Sept. 30, 1926. Couplings, disconnectible. - A coupling for straight and automatic train pipes 118 and 36 comprises interlockable coupling members 164. The pipes 36 are connected by passages 165 and an annular space 167 formed by co-operating flexible packing rings 168 secured by rings 169 and bolts 170. The pipes 118 are connected by passages 166 and spring-pressed valves 172, the stems of which abut against one another and hold the valves off their seats as long as the coupling members are engaged. Manually-operated cut-off valves and air strainers are provided in the pipes adjacent the coupling.
Patent GB-1274195-A (GB)
Title: Carbon dioxide removal from liquid
Inventor: GIBBS CHARLES SIDNEY
IPC: A23L5/20
Filed: 1968-05-21
Abstract: 1,274,195. Degassing liquids. BRITISH OXYGEN CO. Ltd. 21 May, 1969 [21 May, 1968], No. 24232/68. Heading B1M. The carbon dioxide content in solution or suspension in a liquid is reduced by introducing into a flowing stream of the liquid an inert sparingly soluble gas and inducing turbulence in the stream in a region downstream of the point of introduction of the inert gas. The method may be carried out in apparatus similar to that described in Specification 1,156,417. Liquids that may be treated are water, alcoholic and non alcoholic beverages, organic solvents and oils. The gas may be nitrogen, argon, helium, hydrogen, hydrocarbons or nitrous oxide.
Patent GB-443223-A (GB)
Title: Improvements in or relating to adhesive compositions
IPC: C09J189/00
Filed: 1934-08-22
Abstract: An adhesive which may be applied cold consists essentially of an aqueous solution of glue, gelatine or a similar water-soluble nitrogenous colloid, with at least 5 per cent of a phenol or substituted phenol or an inorganic salt of a phenol.  A water-soluble solvent such as methylated spirit may be added.  For application to a waxed surface, a wax solvent, e.g. a mixture of toluene and trichlorethylene may be added, and the glue may be emulsified in the said solvent.  For application to sheets of cellulose derivatives, solvents or swelling agents for the said derivatives may be added, e.g. "Tetraline" (Registered Trade Mark), "Decaline" (Registered Trade Mark), chloroform, benzol or butyl acetate; in this case also the glue may be emulsified.
Patent GB-679025-A (GB)
Title: Method of and apparatus for producing spring inserts for mattresses, cushions, upholstered furniture or the like
IPC: B21F33/04
Filed: 1949-09-22
Abstract: 679,025. Connecting upholstery springs. BOERNER, A., and WOLFF, F. Sept. 22, 1949. [Oct. 1, 1948] No. 24359/49. Class 52 (iv). [Also in Group XXII] In a method of producing spring inserts for upholstery, mattresses &c. (see Group XXII) the coils of adjacent springs are screwed into one another or joined together at their ends 54. The joint may lie below the level of the outermost coil of the spring.
Patent GB-1294051-A (GB)
Title: System for detecting the end of macnetic tape
IPC: G11B15/06
Filed: 1971-04-19
Abstract: 1294051 Transporting magnetic tapes HITACHILtd 19 April 1971 [27 Feb 1970] 24377/71 Heading G5R In a system for sensing the end of supply of a magnetic tape 15 a signal is produced by a detector 21 when contact is established between a conductive reel 13, a conductive coating 15b applied to the end portion of the tape, and the capstan 17. In alternative embodiments, a brush contact (23, Fig. 4) may be used in lieu of the capstan, and both tape ends and both reels may be conductive (Fig. 5).
Patent GB-1285461-A (GB)
Title: Convector plates
Inventor: SKELTON LESLIE GEORGE VICTOR
IPC: C21D9/673
Filed: 1969-05-13
Abstract: 1285461 Convector plates for annealing furnaces SKELTON-THOMAS Ltd 13 May 1970 [13 May 1969] 24379/69 Heading F4B A convector plate for a coil annealing furnace comprises sets of parallel bars superposed at right angles and welded together defining similarly disposed gas passages, the short bars 12-15 and 17-19 defining a central opening 20 with lifting lugs 21, 22. A modification (Fig. 5) has four lifting lugs symmetrically disposed. Another modification (Figs. 1 and 2) has the short bars (4 and 8) welded to central rings, the two sets of bars then being disposed at right angles and welded together.
Patent GB-741397-A (GB)
Title: Hoe for weeds and process for its manufacture
IPC: B21D53/00
Filed: 1953-09-03
Abstract: 741,397. Hand hoes. RAMSEY, A. R. J. (Wolf-Gerate Ges.). Sept. 3, 1953, No. 24405/53. Addition to 682,536. Class 6 (2). [Also in Group XXII] The hoe claimed in the parent Specification is modified by forming the socket for the handle integral with the side arms 6 and cutting blade 5 from a single sheet metal stamping. As shown in Fig. 2 one half of the socket portion 4 is formed with cut-outs 3 which receive tongues 7, 8 when the stamping is formed into shape. The two halves of the socket are then welded together.
Patent GB-448071-A (GB)
Title: Method of making elastic fabric
IPC: D04B1/18
Filed: 1935-08-31
Abstract: 448,071. Stockings. SCOTT & WILLIAMS, Inc., 366, Broadway, New York, U.S.A. -(Assignees of Page, A. E. ; Brooklyn, New York, U.S.A.) Aug. 31, 1935, No. 24409. Convention date, March 26. [Class 141] [See also Groups IX and VIII] A composite thread S comprising a rubber strand 1 and one or more relativelv inextensible filaments 2 of cotton, silk, rayon or derivatives of cellulose, bound together by one or more helically-wound layers of cotton, silk, wool, &c. 3, 4, is used in forming a fabric, for example by knitting or weaving. Thus, it may form laid-in threads S, Fig. 13, in a fabric knitted from a textile strand 5 or a fabric may as shown in Fig. 15 be knitted entirely from the threads. The filaments 2 limit the stretchability of the rubber during the manufacture of the fabric, but when this is subsequently heavily tensioned, the filaments 2 are ruptured into fragments 2<x> which therefore no longer limit the stretch of the strands 1 and these become normally elastic. The strand 1 mav be of extruded rubber or be cut from a sheet and it may be stretched whilst being covered so as to have a limited contraction as shown by Figs. 9 and 10. It may be of circular square or elliptical section and may be in the form of a ribbon, Fig. 5, bent to enclose the strand 2. It may be used in the garter strip 8, Fig. 16, of a stocking top T, and be knitted in by either of the methods shown in Figs. 13 and 15.