baber/WOPTO huggingface dataset:
Patent GB-191224-A (GB)
Title: Improvements in or relating to fountain brushes
IPC: A46B11/00
Filed: 1921-11-09
Abstract: 191,224. Willatt, W. H., and Reckitt & Sons, Ltd. Nov. 9, 1921. Reservoir brushes. - A fountain-brush, especially adapted for use with viscous or semifluid liquids, comprises an outer ring of bristle D and a spring- supported inner brush, ball or stopper E, which is provided with a rod E<1> passing into the tubular orifice for the liquid and is adapted by its motion, when the brush is in use, to keep the orifice free from obstruction. Airtight connection of the brush-base with the liquid-receptacle A is effected by screwing the threaded ring K upon the lower wider-threaded ring of the receptacle after the cap screwed upon upper narrower-threaded ring J has been removed.
Patent GB-381363-A (GB)
Title: Improvements in cargo ships
IPC: B63B3/00
Filed: 1931-10-30
Abstract: 381,363. Ship construction. LAING & SONS, Ltd., SIR J., Deptford Yard, and ASHBY, E. W., 63, Mount Road West, both in Sunderland. Oct. 30, 1931, No. 30075. [Classes 113 (i) and 113 (ii).] In trunk ships in which the side walls F of the trunk incline first upwards in a straight slope and are then angled outwards, the transverse frames K, some of which may be stiffened by deep webs h, supporting the trunk walls are extended downwards to meet the main transverse members L clear of the freeboard deck platforms E. At their upper ends the frames K are connected to the trunk top transverse beams with ot without knee plates. A spare above the platform and outboard the sides of the trunk may be enclosed to provide water ballast wing tanks which may be stiffened with closely spaced longitudinal frames and widely spaced webs. The hatch-covers Y are mounted on rollers to run on to beams Z beyond the trunk sides. The fore and aft knuckle line at the junction of the upper and lower portion of the trunk side walls is without sheer. The trunk erection is arranged with a greater volume in its after half length.
Patent GB-540483-A (GB)
Title: Improvements relating to pressure casting machines
IPC: B29C45/68
Filed: 1939-11-14
Abstract: 540,483. Pressure casting machines. LESTER ENGINEERING CO. Nov. 14, 1939, No. 30080. Convention date, Oct..4, 1939. [Class 87 (ii)] [Also in Group XXII] In a pressure casting machine, a movable die plate is moved and held against stationary die plate by means comprising both a prime mover, such as a hydraulic ram, and a toggle mechanism bodily movable with such prime mover, and the toggle mechanism is operated only during a fractional part of the-relative movement of the die plates. The device illustrated comprises a fixed die plate 5, and a movable die plate 6 carried by a carriage plate 11 to which the links 12 are pivoted. Links 15 are pivoted to the links 12 and to the piston rod 17. Hardened metal inserts 23 on the links 12 are adapted to bear against abutments 24 on the frame 4, and their inclined surfaces, when slid over one another, impart a wedging action to the links 12 and the connected plates 11 and 6. Legs 28 limit the collapsing movement of the links 12, 15. When the piston 18 is moved to the right, from the position shown in Fig. 3, the bearing surfaces 27 of the links 12 contact bearing surfaces 26 on the frame 4 until the dies are nearly closed together, whereupon the links 12 are freed for outward pivotal movement, with the wedge surfaces 23, 24 in contact, and the die blocks 8, 9 are pressed into tightly closed relationship.
Patent GB-305703-A (GB)
Title: Improvements in or relating to radio and the like high frequency receiving systems
IPC: H04J1/00
Filed: 1927-11-09
Abstract: 305,703. Mathieu, G. A. Nov. 9, 1927. Multiplex signalling; fading, preventing; measuring and testing apparatus.-A multiplex heterodyne system suitable for receiving a number of separate signals modulated on a common carrier-wave is characterized by the feature that an identical intermediate frequency is obtained at different points along the chain of receiving currents, whereby tuning is simplified and the correct setting can be verified by utilizing a zero beat effect between the said intermediate frequer.cies. The Figure illustrates a receiving network for receiving one telephonic and two telegraphic messages simultaneously. The incoming wave is received on a sharply-tuned aerial T and is stepped down in frequency by a first heterodyne H1, M1 and is then amplified at A1. The telephone frequency-band, which lies at the centre of the whole amplified band, is separated out by a coupling valve CV1 and an associated filter network, and is further filtered at F1, rectified at D1, and passed through an automatic gain-regulator AGC, A2 of the type described in Specification 288,371. The remainder of the amplified band passes through CV2, and is heterodyned at H2, M2 to produce a carrier frequency of 30000 cycles. This is suppressed by a filter F2 but the upper and lower sidebands of the telegraphic signals pass respectively through parallel filters F3, F4. This separation is utilized as a means of reducing fading effects. After amplification at A4, A5 the original 30,000 cycle carrier is re-introduced at constant amplitude by modulators R1, R2 fed from a generator G through coupling-valves CV3, OV4. The separated telegraphic signals after passing through parallel band filters F5, F6, F<1>5, F'6 are rectified at D2 - - D5 and go through limiting-valves L1V1, L2V2 to line in the usual way. The local geneiator G also feeds a detector controlling circuit M3 branched off from the filter F2. Accordingly, if there is any difference in frequency between the carrier from the first and second heterodynes and then from the generator G, this will be heard as a beat-note in a loud-speaker connected to the amplifier A6. As in practice, H2 and G can be anchored together, turning adjustment is limited to setting the first heterodyne H1 to give a zero beat-note. In a modified arrangement an harmonic from the generator G can be used as the second heterodyne H2. Neon tube wavemeters W1, W2 are used to control the frequency of the generators H2 and G, and flashlamp indicators, operated by relays tuned say to 250, 350, and 450 cycles may be inserted in the output circuit of the amplifier A6.
Patent GB-447367-A (GB)
Title: Improvements in and relating to driving arrangements for electrically driven conveyor systems
IPC: H02P1/54
Filed: 1935-10-31
Abstract: 447,367. Conveyers. SIEMENS-SCHUCKERTWERKE AKT.-GES., Siemensstadt, Berlin. Oct. 31, 1935, No. 30127. Convention date, Dec. 11, 1934. [Class 78 (i)] [See also Group XXXVII] In a conveyer system in which a composite conveyer path can be formed by selection from a number of separately electrically driven conveyer units feeding one to the other in succession, selector switches are provided in the control circuit of the motors of the individual units whereby any desired re-arrangement of the conveyer path can be effected and the group of motors of the selected units may be set in operation by a single control movement. Fig. 1 represents a miniature switchboard diagram of a conveyer system in which an elevator 3 feeds either of the band conveyers 1, 2 and is itself fed by either of the band conveyers 4, 5, the conveyer 5 being fed by any one of the worm conveyers 6, 7, 8. Fig. 2 represents the circuit diagram of the system in which numerals 11, 21, 31 ... 81 represent the motors driving the conveyers 1, 2, 3 ... 8, the motors being controlled by relays 12, 22, 32 ... 82. With selector switches 37, 39, 57 adjusted for a conveyer path comprising the units 6, 5, 3, 2, closing of the switch 88 causes the relay 22 to switch-in the motor 21, and then by means of a circuit extending through the switches 37, 39, 57, the relays 32, 52, 62 are operated to switch-in the motors 31, 51, 61 in sequence, such switching-in being signalled by lamps 25, 35, 55, 65 which illuminate transparent arrows 26, 36, 56, 66 on the switchboard diagram. The adjustable flap by which material coming from the elevator 3 is guided on to either of the band conveyers 1, 2, is provided with contacts 18, 28 so that by means of a relay 91, the lamp 27a is made to flicker when the positions of the flap and selector switch 37 do not correspond. Similar contacts may be provided on the other flaps.
Patent GB-1218927-A (GB)
Title: Improvements in heat-resisting alloy steels
Inventor: RIDAL KENNETH ARNOLD
IPC: C22C38/52
Filed: 1967-06-29
Abstract: 1,218,927. Alloy steels. ENGLISH STEEL CORP. Ltd. June 13, 1968 [June 29, 1967], No.30157/67. Heading C7A. A heat-resisting alloy steel consists, by weight, of:- C 0À21-0À35% Si # 0À35% Mn 0À39-1% Ni 0À4-1% Cr 0À7-1À4% Mo 0À5-1À5% V 0À2-0À6% Ti, Nb and/or Ta 0À03-0À15% total B 0À002-0À01% Co 0À5-3% Fe balance (apart from impurities and incidental constituents). P and S should each not exceed 0À04%. The steel may be austenitized at 950‹-1060‹C., hardened by cooling in air, steam, water-mist or oil, and tempered at 600‹ -700‹ C. It is useful for the manufacture of turbine components.
Patent GB-791066-A (GB)
Title: Improvements in and relating to guns for projecting plastic products
IPC: B05B7/16
Filed: 1955-10-21
Abstract: 791,066. Spray-producers. SOC. PROTECTAL. Oct. 21, 1955 [Oct. 22, 1954], No. 30170/55. Class 69(3). A gun for projecting molten plastic material by relatively low pressure hot air includes a reservoir 3 detachably fixed to a spray head 2 supporting an electric resistance heater 13 which heats the plastic material as well as atomizing air which is passed through it. The heater includes a closed cylindrical jacket, Figs. 4 and 5, housing resistors 18 which extend through baffles 17. Cold air is fed through a pipe 25, Fig. 5, to the head and flows through a tube 21 to the bottom of the heater; it then flows zig-zag fashion through the heater and into a passage 28, Figs. 3, 5 and 6. A safety valve 31 is arranged at one end of the passage 28 and at the other end a bore 32 leads to a spray nozzle and is controlled by a screw 65. Some of the heated air passes into the reservoir via a valve 58, and forces the heated material through a tube 52, Fig. 4, and bores 51, 41 to the spray nozzle. Liquid flow from the nozzle is controlled by a trigger-operated rod 42. A further portion of the hot air fed to the passage 28 flows via a valve 61 through a looped tube 63 depending into the reservoir to effect additional heating of the material. The hot air passes through the tube 63 and is returned to the passage 28. An adjustable thermostat controls the material temperature indicated by a thermometer, and a manometer indicates the hot air pressure. The electric conductors supplying the heater pass through the air supply pipe 25. Two reservoirs and nozzles may be fitted to the gun head, one reservoir containing paint and the other a hardening product, and the two nozzles may simultaneously emit the two substances. An electrostatic emitter may be associated with the gun in order to charge the sprayed particles.
Patent GB-1260546-A (GB)
Title: Method and apparatus for the recovery of a resinous material from a solvent
IPC: C08F14/00
Filed: 1969-06-13
Abstract: 1,260,546. Evaporators, film-type; recovery of solvents from polymeric material; removal of residues from apparatus. ARTISAN INDUSTRIES Inc. 13 June, 1969 [14 June, 1968; 29 May, 1969], No. 30232/69. Headings B1B and B1X. Volatile liquid is evaporated from a viscous material, such as a mixture of polyvinyl chloride and tetrahydrofurane, by feeding the material through inlet 16 into chamber 12 where rotor blades 30 distribute the material and move it axially, in the form of a film, on the heated cylindrical inner wall of the chamber, and withdrawing the treated material through conduit 18 by means of conveyor 32 (e.g. an Archimedian screw) and pump 34. As shown, pump 34 comprises rotor 36 and stator 37; and the pump may be driven by the same, or a different, device as that used to operate conveyor 32. Another type of pump may be used instead of a screw pump, e.g. a piston-, radial-, or gear-pump. The vapours flow out of chamber 12 through outlet 20. The chamber is heated by passing heating-medium through jacket 14. Conduit 18 is also surrounded by a heating-jacket 39. Fig. 5 (not shown) depicts a film-evaporator wherein the rotor blades terminate before the outlet conduit 18 is reached, and the shaft of the rotor is provided with a vertical plate above the outlet conduit, so that the treated material builds up behind the plate and is scooped into the oulet conduit. A reaction vessel containing resinous material, e.g. polyvinyl chloride, accumulated from prior processing operations, may be cleaned out by introducing solvent into the vessel, and removing the resultant solution from the walls of the vessel.. The solution is then introduced into the film-evaporator for recovery of solvent.
Patent GB-365516-A (GB)
Title: Improvements in motor mounting
IPC: F16F1/371
Filed: 1930-10-09
Abstract: 365,516. Indiarubber springs. CHRYSLER CORPORATION, 341, Massachusetts Avenue, Detroit, Michigan, U.S.A. Oct. 9, 1930, No. 30298. Convention date, Feb. 24. [Class 108 (iii).] In a rubber or like resilient connection between two relatively movable members 18, 16, Fig. 3, facing one another such as the engine support 12 and the frame of a motor vehicle, in which relatively non-resilient elements 30 are enclosed within the resilient connection 20 so that the mounting is resilient in directions parallel to the facing members and relatively rigid perpendicular thereto, the arrangement is such that during parallel movements the resilient connection 20 is subjected to tension or shear. The non- resilient members 30 comprise blocks embedded within the resilient members 20 which may be vulcanized to the opposed faces. The parts 20, 30 may both be of rubber having different degrees of elasticity. In a modified mounting shown in Fig. 5, a central non-resilient element 50 may extend right across the gap between the opposed members 36, while upper and lower non-resilient members 52 may extend only partly across the gap so that a small tilting movement is allowed in addition to parallel movements.
Patent GB-1048277-A (GB)
Title: Aircraft terrain avoidance radar device
IPC: G01S13/935
Filed: 1963-07-31
Abstract: 1,048,277. Pulse radar. GENERAL DYNAMICS CORPORATION. July 31, 1963 [Aug. 13, 1962], No. 30316/63. Heading H4D. [Also in Division G4] In an airborne terrance avoidance system a circuit connected to an obstacle-detecting radar produces a signal A proportional to obstacle range and rate of change of range, a further circuit also connected to that radar produces a signal B representative of a last-detected object in the absence of signal A, a circuit connected to a radar altimeter produces a signal C proportional to aircraft height and rate of change of height, further means provides a signal D characteristic of vertical acceleration, and pitch command signals are produced proportionately as signals A and C but inversely proportionately with signal D; the pitch command signals are inhibited by signal B. The first echo, beyond a predetermined minimum range afforded by a gate generator 16, terminates a sawtooth wave, commencing at the minimum range, from a generator 23; the ensuing D.C. voltage is integrated in a circuit 33 and operational amplifier 85 produces signal A. If no echo is received the output of generator 23 causes a circuit 24 to generate a pulse at a time representing maximum range; an integrating circuit 42 has a rapid charging but slow discharging time constant and provides for signal B. The output of a radar altimeter 91 is a D.C. voltage proportional to height; to remove fluctuations due to rough terrain and in order to permit a capacitor 96 to charge to a voltage representing only the minimum detected height a diode 95 is provided and as the altimeter signal rises above the minimum the diode cuts off thereby preventing additional charging of the capacitor. The output of operational amplifier represents signal C. The voltage across a resistor 115 varies with signals A and C, and a signal analogous to B provides for "delay dive command"; with a close obstacle or low height a climb command signal ensues, and conversely. The delay dive command signal is normally blocked by a diode 114: when the radar signal is lost a generator 56 becomes operative, the output of a smoothing network 57 (normally highly positive) falls, and diode 114 conducts such that the dive command is delayed for a time enabling the aircraft to clear the last obstacle received on the obstacledetecting radar before signal was lost due to looking over a ridge. A summing circuit 116 receives signals A and C and a vertical acceleration signal from a pitch rate gyroscope 117. The attitude command is given on a moving- coil meter 121 or is applied to an automatic pilot.
Patent GB-630442-A (GB)
Title: Improvements in and relating to automatic gain control systems
IPC: H03G3/00
Filed: 1946-10-11
Abstract: 630,442. Automatic gain control systems. GENERAL ELECTRIC CO., Ltd., and BERRY, D. W. Oct. 11, 1946, No. 30405. [Class 38 (iv)] An automatic gain control system for a circuit conveying signals including a pilot signal, comprises means for selecting the pilot signal and deriving therefrom a voltage which is applied to a control circuit connected between an alternating current source and electromechanical means such as an induction motor, used to control the gain regulating device. The control circuit comprises rectifiers, and is such that the voltage supply to the electromechanical means is zero, or in one or the opposite phase, according to whether the pilot signal level is equal, above or below a datum level. In Fig. 2, an incoming signal L1, including a pilot signal, is applied through gain-regulating device 10 to the output circuit L2. The output circuit is also connected to terminal 13 from which the pilot signal is selected and rectified to produce a positive potential at point 17, which is applied to the centre of the secondary winding of transformer 23. This winding is connected through rectifiers R1, R2, R3 and R4 to the primary winding of transformer 26, to the centre of which an adjustable fixed voltage is applied from point 19. An A.C. supply is connected to the primary of transformer 23, and the arrangement is such that the input to transformer 26 is zero, in one phase or the opposite phase, according to whether the positive voltage at 17 is equal, greater, or less than the voltage at point 19. The output from transformer 26 is amplified and used to control the rotation of an induction motor 11 which controls gain regulating means 10 in a direction such that the voltage at point 17, and therefore the output at L2, is maintained substantially constant. A limit switch 37 may be provided to operate at the position of maximum gain, to insert a resistance in the motor circuit. In order to prevent overloading due to the cessation, and subsequent restoration of the signal, further means may be provided (Figs. 3 and 4, not shown) such that a relay ceases to operate if the signal falls below a predetermined level, the relay contacts being arranged so that the motor is either maintained at its present position (instead of rotating to the maximum gain position) or is rotated to the minimum gain position. The relay may also operate an alarm signal in this event. If a single regulating device is not capable of achieving the desired control, the transmission path may be divided into sections, each having a regulating system as described.
Patent GB-393842-A (GB)
Title: Improvements in starting traps for releasing animals in sporting events
IPC: A63K3/02
Filed: 1932-10-31
Abstract: 393,842. Animal-racing apparatus. WORKMAN, G. O., 7, Gas Street, Birming- ham. Oct. 31, 1932, No. 30472. [Class 132 (i).] A trap for releasing animals in sporting events comprises a compartment for the animal, a pivoted gate normally closing the compartment, spring means enclosed within the apparatus for opening the gate, latching means for the gate, and release means for the latch to enable the spring means to open the gate. As shown, the trap comprises compartments with independent entrance doors and a single horizontally hinged gate. The compartments are spaced laterally by five housings closed at the back but open at the front when the gate is open. In two of the housings are two bars hinged together at the bottom and separated by a spring, one bar being connected to the gate by a link. The gate 3, Fig. 6, is latched by a catch comprising a lever 18 having a notch 23 engaging a cross-bar 22. The latchtripping device comprises a rod 25 slidable in guides 26, the rear end passing through an opening 27 in the back of the housing and carrying a pedal 28 on depression of which the rod 25 slides forward to free the lever 18 from the bar 22 and permit the gate to open. Automatic locking means for the opened gate comprises a lever 33, Fig. 5, pivoted at 34 in each of the outermost housings and acted upon by a spring 35. The rear end engages a stop 36 and the front coacts with a bracket 38 on the gate to hold the gate in raised position. Release is effected by pulling bar 45, which passes through the aperture 46 in the trap, and has a handle 47, and which is pivoted to an arm 44 at the middle of a shaft 41 having cranked parts 42 connected to the lever 33 by a link 43. The gate may be closed by foot-pressure on the foot-piece 48. In a modification, the gate of a single-compartment trap is retained closed by a springbolt releasable by a lever connected by a rod and linkwork to main rods connecting up the release mechanisms of the gates oi a number of traps for use in handicap racing.
Patent GB-1500301-A (GB)
Title: Method of producing electricity in an electrochemical generator
IPC: H01M8/22
Filed: 1975-07-21
Abstract: 1500301 Electrochemical generator SOC GENERALE DE CONSTRUCTIONS ELECTRIQUES ET MECANIQUES ALSTHOM 21 July 1975 [19 July 1974] 30479/75 Heading H1B An electrochemical generator comprises reservoirs 1, 2 for fresh and used paste having the property specified below, a passage connecting the reservoirs for the transfer of paste therebetween, at least one inert porous electrode 7 supplied with oxygen or a gas containing oxygen and enabling this oxygen to be reduced, a porous separator 3 in electrolytic contact with this electrode, a second inert electrode within the passage on the side of the separator remote from the first electrode and spaced from the separator, and means 4 for transferring the paste between the reservoirs in such a manner that the paste in the passage contacts the separator and the second electrode, whereby in use the metal is oxidized and the oxygen is reduced in order to produce electrical energy. The paste is composed of grains of a metal (e.g. Zn, Fe, Cd, Pb) and an electrolyte, the metal powder concentration in the paste being such that the grains are in close contact with each other and the quantity of electrolyte in the paste is just sufficient to fill the interstitial spaces between the grains. It may also contain solid lubricator to improve its fluidity (e.g. PTFE or graphite powder), a substance such as graphite, carbon black or a metal to increase its conductivity, and (for Zn paste) some Hg to increase conservation and reduce self-discharge. As shown, it is moved by an Archimedes screw 4. The electrolyte may be aqueous or non- aqueous, alkaline (e.g. KOH), saline or (for Pb paste) acidic. The separator is an isolating porous wall 3 (e.g. microporous polyvinyl chlorate or polyethylene, or non-woven polypropylene) and is surrounded by a porous conductive sleeve 6 formed of a metal web, a carbon filling agent and hydrophobic link member. The oxygen electrode may comprise a porous carbon leaf or plate with a PTFE sealer and a catalyst (Ag or C). The second inert electrode may be made of metal or graphite. The oxidized paste may be converted back to its original form by passage through a device similar to the above; the same device could in fact be used.