baber/WOPTO huggingface dataset:
Patent GB-347389-A (GB)
Title: Improvements in and relating to games-practice appliances
IPC: A63B63/00
Filed: 1930-03-04
Abstract: 347,389. Practising lawn-tennis &c. HEDGE, C. H., Brooklyn, Hinckley Road, Nuneaton, Warwickshire. March 4, 1930, No. 7039. [Class 132 (ii).] In a practising-appliance for lawn-tennis and similar games, the gap through which the ball is played between the top of a net, or an indicator representing the height thereof, and an indicator representing the service line, is arranged approximately horizontal. A band b of wide flexible material is stretched between posts a at the normal height of a tennis net. A stop-screen h of green canvas is supported by springs g from the upper ends of the posts, and is held in inclined position by cords q passing around guy-ropes p. Netting k fills in the space between the screen and the ground. Balls are played with the object of passing between the band b and a tape i arranged along the lower edge of the screen to represent a service line.
Patent GB-471751-A (GB)
Title: Improvements relating to devices in heilmann combing machines for piecing and delivering the combed fibres
IPC: D01G19/14
Filed: 1936-03-09
Abstract: 471,751. Combing-machines. SACHSISCHE TEXTILMASCHINENFABRIK VORM. R. HARTMANN AKT.-GES. March 9, 1936, No. 7044. Convention date, April 18, 1935. [Class 120 (i)] In a Heilmann combing-machine the detached masses of threads are pieced by a device comprising detaching members a, b, Fig. 1, which are driven continuously and a pair of rollers d, e driven periodically the rollers rl, e being mounted in a support g oscillatable about the axis of the roller e, so that the drive to the rollers d, e is alternately established and interrupted. The drive consists of a friction wheel m mounted on the axis of the roller d and adapted to engage a friction wheel n. When the mass i is being drawn off the friction wheels m, n are in contact and the rollers d, e are driven. When a certain length has been drawn between the rollers the support g is oscillated to separate the friction wheels m, n. The rollers d, e then come to rest, Fig. 2, with the end of the threads resting on the belt a the latter then feeding the mass down on to the guide plate h, Fig. 3. The wheels m, n are again brought into contact and the next mass of threads i on the belt a gripped by the rollers d. e and drawn off together with the mass on the plate h. A brake may be provided to stop the rollers d, e as soon as the wheels m, n are separated while gear wheels or other driving means may be substituted for the friction wheels m, n.
Patent GB-429644-A (GB)
Title: Improvements in or relating to domestic laundry machines
IPC: D06F13/02
Filed: 1934-03-07
Abstract: 429,644. Washing-machines. SYKES & DYSON, Ltd., SYKES, P., and COOPER, W., Queen's Mill Road, and BYROM, S. B., Union Street, both in Huddersfield. March 7, 1934, No. 7198. [Class 138 (ii)] The agitator b of a washing - machine is driven from the shaft j<1> of an electric motor j through a helical gear wheel m and crank arm o on the shaft n of this gear wheel. A crank arm r on the agitator shaft is provided with a depending pin r<1>, Fig. 3 having a spherical head r<2> received between two spring- pressed blocks s slidably mounted in a head p<1> on a connecting rod p carried by the crank arm o. The shaft e driving the wringer c in either direction through a clutch h and bevel gear f, g, i, is provided with a helical gear wheel v engaging the wheel driven by the motor shaft.
Patent GB-115836-A (GB)
Title: Improvements in Speed Regulating Mechanism for Internal COmbustion Engines.
IPC: F02P5/06
Filed: 1918-04-30
Abstract: 115,836. Elgin Gas Motor Co., (Assignees of Thompson, H. L.). April 18, 1917, [Convention date]. Regulating; valves.-The engine is of small size and is designed to be made with as little machining as possible. A combustible charge is admitted to the crank chamber through a rotating diskvalve 25 and enters the cylinder through a transfer passage 15. A bar 64 pivoted at 63 to the flywheel swings outwards bv centrifugal force against the pull of a spring 66. The bar carries a spring finger 65 which moves over a fixed disk and touches a contact projecting through a face of insulating material 55 and thus makes and breaks at intervals, according to the speed of the engine, the secondary circuit of an induction coil. The pivot 63 is inclined to the face of the fly-wheel, so that as the bar moves centrifugally, it tends to move the finger out of contact with the plate. The plate is adjusted axially by a nut 60 and screw 61.
Patent GB-563828-A (GB)
Title: Improvements in or relating to wire-drawing machines
IPC: B21C3/14
Filed: 1943-05-10
Abstract: 563,828. Drawing wire. BARRON, C. A., and BARRON, H. D. May 10, 1943, No. 7339. [Class 83 (iv)] In a wire drawing machine a revolving soapbox is used to give rotation to the die holder which is so mounted that a stream of coolant can be directed around it. A bracket d, that supports the die holder, has a bearing c for the stem a<1> of a soap-box a, having a lid b closing a filling opening, and being driven by a pulley e. A filler block f permits the wire to continue to receive soap as the box empties. The stem a<1> is fitted with a spring-pressed driving member m having pins that engage pins or recesses n<1> in a bush n that clamps the die holder g in the casing h which has a series of blades h<1> that direct cooling water entering a fixed ring,i at j<1> round the die holder for delivery at j<2> and k. The casing is supported by a roller bearing i.
Patent GB-168824-A (GB)
Title: Can openers
IPC: B67B7/46
Filed: 1921-03-08
Abstract: 168,824. Worthington, B. G. March 8, 1921. Opening by cutting.-A tin-opener consists of a handle 15, Fig 4, comprising plates 16, 17 spaced apart by a block 19 and carrying a fixed toothed wheel 25 fixed in adjustable position by a clamping-screw on the under side and connected pivotally with a plate 23 carrying two cutters 27, so arranged that tins may be cut in either direction. A corkscrew 21 is mounted in the handle, and a part 36 is struck up to serve for removing metal caps from bottles. In a modification, shown in Fig. 6, the cutter-carrying plate is replaced by a disc 31 with recesses formed on either side of a projection in which two cutters 35 may be secured.
Patent GB-277397-A (GB)
Title: Improvements in or relating to wireless receiving apparatus
IPC: H04B1/10
Filed: 1926-03-17
Abstract: 277,397. Loewe, S. March 17, 1926. Thermionic amplifiers; signalling to and from aircraft.-In order to eliminate microphonic noise due to vibration, particularly on an aeroplane, one or more high-frequency valve amplifiers are coupled to a carborundum detector through an intermediate high-frequency circuit. Low-frequency disturbances originating in the valves are thus shut out from the telephones. As shown in the Figure, two four-electrode amplifiers 6, 21, 7, 8 and 18, 22, 19, 20, coupled by a high-resistance 23, are contained within a single evacuated bulb 17. The output is fed through a high-frequence transformer 10 to a tuned circuit 11, 12, coupled in turn to a crystal detector 14. A twoelectrode valve may replace the crystal rectifier.
Patent GB-708052-A (GB)
Title: Deasphalting petroleum oils
IPC: C10G21/00
Filed: 1950-03-24
Abstract: Petroleum hydrocarbons are deasphalted by treating the fluid hydrocarbons with a deasphalting agent consisting of a liquid normally gaseous hydrocarbon and up to 20 per cent. by volume of the mixture of a non-hydrocarbon modifier, at a temperature of at least 165 DEG F., and separating an asphalt layer.  Modifiers referred to are benzene, phenol, chlorophenol, cresol, sulphur dioxide and benzene, thiophene, furfural, sulphur dioxide, nitrobenzol, ethanol, amines, b -dichloroethyl ether, quinoline, isoquinoline and other nitrogen bases, acetonitrile, acetone and p  aqueous propyl alcohol. Specification 708,051 and U.S.A. Specifications 1,948,296 and 2,002,004 are referred to.
Patent GB-622528-A (GB)
Title: Improvements in or relating to vices
IPC: B25B1/14
Filed: 1947-03-19
Abstract: 622,528. Vices. GORDON, E. March 19, 1947, No. 7552. [Class 61(ii)] In a vice having both jaws adjustable, the jaw 2 is adjusted by a screw 7 and is guided by spaced pins 5 sliding in holes in the frame 6 and the jaw 3, pivotally mounted at 8, is moved by a lever 15 and is tightened against the work by the toggle action of links 10, 13. The position of the fulcrum pin 14 of the link 13 is adjustable by a screw 16 and the jaw 3 is radiused at 17 so that the work can be gripped without the jaw 3 being truly vertical.
Patent GB-163846-A (GB)
Title: Improvements in apparatus for sifting cinders
IPC: F24B15/00
Filed: 1920-03-15
Abstract: 163,846. Newcombe, B. St. J., and Furness, W. March 15, 1920. Reciprocating or oscillating sieves.- A cinder-sifter comprises a body part 1 with a lower conical portion 2 containing a sieve 4 carried bv arms 5 mounted on a spindle 6 provided with an operating- handle 7 outside the body past. The sieve normally occupies an horizontal position, but it can be turned i n t o the position shown in full lines for the purpose of discharging the cinders into a bucket 11 after the sifting operation. The body is provided with flanges adapted to rest on the upper edge of a bin 9 and is reciprocated circularly by means of handles 10 during the sifting process.
Patent GB-402298-A (GB)
Title: Improvements in or relating to air cooled absorption refrigerating apparatus for refrigerators
IPC: F25B15/10
Filed: 1933-03-14
Abstract: 402,298. Refrigerating. ELECTROLUX, Ltd., 153, Regent Street, London.- (Assignees of Platen-Munters Refrigerating System Aktiebolag ; 2, Norrmalmstorg, Stockholm.) March 14, 1933, No. 7719. Convention date, March 14, 1932. [Class 29.] Absorption machines.-Cooling-air is drawn by a thermostatically controlled fan 29 over the condenser 16, absorber 19, and it may be the separator or rectifier 14 of a continuouscycle absorption apparatus arranged in a flue casing 10 outside the wall of a refrigerating cabinet. Preferably the fan motor circuit 28 is in parallel with the circuit of the heating element 23 of the generator, and is controlled by the same thermostat 24, located inside the cabinet, so as to be in operation only when the generator is being heated. It may be controlled additionally by a further thermostat subject to the temperature of the condenser or of the external air or both so that it is stopped when less cooling of the apparatus is required. The fan is located at the top of the flue casing, which has guide baffles 31 to direct all the air to the fan, and may have other baffles 32 to ensure that the condenser and absorber receive separate streams of unheated air. Adjustable air inlet louvres 33, 36 may be provided at the sides of the casing, and the generator, which is heat insulated, may be protected from the cooling streams by a screen 35 and a bottom closure plate 34.
Patent GB-868233-A (GB)
Title: Improvements in or relating to outboard motors
Filed: 1959-03-05
Abstract: 868,233. Outboard motor drives. WAYHOPE, J. G. A. Jan. 28, 1960 [March 5, 1959], No. 7752/59. Class 114. In an outboard motor comprising a drive shaft 18 having a pinion 17 meshing with a crown wheel 19 on the propeller shaft 15 supported in bearings 16 and 14 carried by a housing 12, at least one web projects from the inner surface of the housing and is disposed above the level of the propeller shaft and near to the pinion or the crown wheel and extends close to one of said bearings whereby to lead oil, which is carried upwards by the crown wheel from a sump 11 formed within the housing, on to said bearing. Oil in the sump is carried up by the crown wheel 19, transferred to pinion 17, thrown by centrifugal force on to two webs embracing webs 22 from whence it drips on to the bearing 16. Oil carried up by the face 25 of the crown wheel is contacted by the edge 24 of a web 23 and thereby transfered to said web, from whence it drips on to the bearing 14.
Patent GB-596803-A (GB)
Title: Improvements in time base circuit arrangements
IPC: H03K4/20
Filed: 1945-03-30
Abstract: 596,803. Saw-tooth waveform generators ; radio navigation. WILLIAMS, F. C. March 30, 1945, No. 8134. [Class 40 (v)] In a time-base circuit of the type described in Specification 593,491 for use in an airborne P.P.I. display conforming to true ground ranges, correction for height within predetermined limits is achieved automatically without varying circuit parameters by deriving the exponential components of the time-base voltage from a network comprising a plurality of branch circuits which are charged or discharged for a time dependent on the height h and have time constants in geometric progression. Fig. 1 shows a five-branch network, associated with a Miller time base circuit. A. gating wave-form of width proportional to h is applied at terminal A and terminals D, Bare clamped at earth potential and at normal anode potential respectively for the duration of the gate. When the steady potential at terminal A is removed, terminals D, B are unclamped and the network discharges symmetrically to terminals A, D. The exponentially decreasing currents at D are added to the constant current delivered through resistor R1 to give a resultant potential at B approximating to the required hyperbolic form. The approximation may be made closer by unclamping terminal B shortly before the termination of the gating wave-form at terminal A in order to increase the initial rate of change of voltage at B. Fig. 3 shows a modified network N which is charged in the quiescent condition and has its terminal voltages limited by diodes D1, D3 an D4 respectively. Gate valve V2, the Miller time-base valve V3 and the first valve of biassed multi-vibrator V4, V5, are biassed beyond cut-off and the anode voltage of V3 is limited to 100 volts by diode D5. The positive gating voltage renders valve V2 conducting and network N discharges through resistor R6 and valve V2 for the duration of the gate, and thereafter the anode voltage rises suddenly to 100 volts, producing a positive pulse through differentiating condenser C6 which causes the biassed multi-vibrator to change over and cutoff valve V5. A positive wave front is communicated back via capacitor C7 to cut-off diode D4, and unclamp the grid of valve V3, while a similar pulse reacts on the grid from differentiating capacitor C10 to ensure rapid initiation of the time-base sweep at the anode of valve V3. Capacitor C1 determines the scale of the timebase which is terminated when the biassed multi-vibrator reverts to its original condition. Valve V3 is then clamped in cut-off condition and capacitor C1 recharges'rapidly through the anode inductance. Potentiometer VR1 determines the amplitude of the exponential components and resistors R1, R6 are matched to make the charge transferred from the network N equal to the charge which would be fed through resistor R1 during the period of the gate, if the grid of valve V3 was not clamped.
Patent GB-498638-A (GB)
Title: Improvements in or relating to wheels provided with solid tyres
IPC: B60C23/18
Filed: 1938-03-16
Abstract: 498,638. Wheel tyres. RIEHLE, R. March 16, 1938, No. 8142. [Class 144 (ii)] For cooling a solid tyre in running, a nozzle 9, fitted with a vane 12 and communicating through ducts 10 to radial passages 7 in the tyre 4, is rotatably mounted on the wheeldisc 2. The passages 7 communicate with passages 8 leading to the interior of the wheel into which cooling-air is drawn from the atmosphere through apertures 13 in the wheel-discs. In a modification, (not shown), the nozzle 9 may be fitted with its mouth facing the forward direction of travel of the wheel.
Patent GB-1374698-A (GB)
Title: Vehicle tilt cab fastening mechanism
IPC: B62D33/07
Filed: 1973-02-20
Abstract: 1374698 Hook fastenings BRITISH LEYLAND TRUCK & BUS DIVISION Ltd 20 Feb 1973 [22 Feb 1972] 8212/72 Heading E2A A motor vehicle tilt-cab fastening comprises a stirrup 11 fixed to the cab and held by a hook 24, this hook being vertically lifted out of engagement with the stirrup by rotation of a lever 21 to which the tail of the hook is pivoted at 26, and moved laterally to clear the stirrup by a link 27 pivoted to the casing at 31. The handle is secured by a latch lever 32.
Patent GB-566249-A (GB)
Title: Improvements in or relating to the production of shaped ferrous metal parts having surface hardened profiles
IPC: C21D1/08
Filed: 1943-05-26
Abstract: 566,249. Toothed gearing. SHORTER PROCESS CO., Ltd., and SHORTER, A. E. May 26, 1943, No. 8396. Drawings to Specification. [Class 80 (i)] [Also in Groups II, XI and XXII] Sprocket wheels are produced by a flamecutting process so that the flanks and roots of the teeth are surface hardened and the apices are left unhardened. Reference has been directed by the Comptroller to Specification 561,586, (Group XXII].
Patent GB-962358-A (GB)
Title: Improvements relating to tubular knitted articles
IPC: A61F13/00
Filed: 1962-03-05
Abstract: 962,358. Surgical dressings. L. HOCKMAN. March 5, 1962 [Nov. 29, 1961], No. 8405/62. Heading A5R. [Also in Division D1] Tubular articles, such as finger or toe bandages or stockings, are knitted in string formation on a flat parallel bed machine by circularly knitting an elastic portion 4 of a rubber yarn followed by a body portion 2 which is subsequently closed by knitting simultaneously on the needles of both beds as at 8. Circular knitting is thereafter resumed and a separating course 6 is inserted prior to the knitting of the elastic portion for the next article. Consequently on separation each article comprises a tube having an elastic top portion and a closed end. U.S.A. Specification 2,669,726 is referred to.
Patent GB-1344804-A (GB)
Title: Gamma imaging devices
IPC: G01T1/164
Filed: 1972-02-23
Abstract: 1344804 Scintillation camera PICKER CORP 23 Feb 1972 [5 March 1971] 8413/72 Heading H4F  A transparent disc 32 is provided between a scintillator (20, Fig. 2, not shown) and a plurality of photo-tubes (35). The photo-tubes are optically coupled to disc 32 at 52A, 56B, 56C, and the rest of the face of the disc facing the phototubes is covered with a reflective coating 51, which is also formed as masks 57 over some of the openings 56C. The opposite face of disc 32 (Fig. 4, not shown) is formed with a reflecting mask formed of spokes radiating from a central annular hub opposite each opening 52A, 56B, the part of this face not in contact with the scintillator being similarly coated. The reflective coatings may be replaced by opaquing the selected areas of the plastics of disc 32.
Patent GB-962399-A (GB)
Title: Improvements in or relating to filling valves for gas lighters
Inventor: ZELLWEGER CONRAD
IPC: F23Q2/52
Filed: 1960-07-29
Abstract: 962,399. Liquefied gas - filled lighters. NATIONALE S.A. July 29, 1960, No. 8468/64. Divided out of 963,636. Heading F4F. A valve for filling the reservoir of a lighter with liquefied gas comprises a closure member 5 having a seal 6 adapted to engage a seat 7 on a transverse wall 10, and a tubular member 8 extending with clearance through the valve inlet orifice 9. The valve is opened against the action of a spring 4 by engaging the connecting piece 13 of a refill vessel with the upper end 12 of the tubular member 8 and pushing downwardly. The liquefied gas flows through the bore 14 and through a radial groove 15 in the tubular member to a hole 16 in the body of the valve. Gas in the reservoir escapes to atmosphere through a hole 17 in the body of the valve and through the clearance between the tubular member 8 and the valve inlet orifice 9. The orifice 9 and the periphery of the tubular member may be non-circular. A valve in the filling vessel may be opened by displacement of the connecting piece after the opening of the lighter valve.
Patent GB-1375795-A (GB)
IPC: G06G7/25
Filed: 1972-02-23
Abstract: 1375795 Detecting peak voltages SIEMENS A G 23 Feb 1972 [23 Feb 1971] 8471/72 Heading G1U Apparatus for receiving (1) a succession of pulses and recording the peak value of each pulse comprises an analogue store 4 controlled (8) so as to temporarily store the peak voltage of each pulse in turn, a data processer 14 (e.g. a data logger) for detecting and recording the stored peak voltage, and a cancelling circuit 12 which resets the store 4 after the processing has been completed. The store controller 8 supplies a "follow" signal to the store 4 during the leading edge of a pulse, but removes this signal when a maximum is reached. As the incoming signal (1) then falls, the difference between the stored voltage and the incoming signal rises, and when the difference reaches a certain level (chosen to prevent a temporary dip on the leading edge of a pulse from being mistaken for a true peak) a threshold circuit 10 triggers the processer 14 via a monitor 11. When the stored voltage has been processed, the processer 14 triggers the cancelling circuit 12 to supply a "cancel" signal to the reset input 7 of the store. The "cancel" signal is not removed until (i) the minimum expected interval between pulses has elapsed (thereby preventing intermediate noise pulses being mistaken for the true pulses), and (ii) the leading edge of a pulse has been detected (13). If a pulse fails to arrive within a pre-set further interval, a "missing pulse" warning is passed to the processer to prevent faulty identification of subsequent pulses. When the apparatus is switched on a sensitivity control 9 reduces the gain of the controller 8 so that any pulses received will not normally trigger the threshold circuit 10. The commencement of a series of pulses to be recorded, however, is marked by a large pulse which will, despite the reduced gain, trigger the threshold circuit, and this in turn will switch the control 9 so that thereafter the gain is raised to its normal level. A circuit 16 gives a warning of any unacceptably high pulses. The pulses may represent the analysis of successive blood samples.
Patent GB-1036533-A (GB)
Title: Sewer cleaning apparatus
Inventor: CAVE DERICK CARL
IPC: E03F9/00
Filed: 1964-02-28
Abstract: 1,036,533. Cleaning sewers. METERING PUMPS Ltd. March 1, 1965 [Feb. 28, 1964], No. 8487/64. Heading F2N. A sewer cleaning apparatus comprises a selfpropelled vehicle having mounted thereon a high-pressure pump 6 driven by an auxiliary engine 7 a water tank 3 to which the inlet of the pump is connected and a hose having a traction nozzle on a hose reel 30 to which the outlet of the pump is connected, the outlet also being connected through a pressure relief valve back to the tank 3. The hose reel 30 is driven by an hydraulic motor 31 which is supplied with fluid from a tank 33 and pump 32 assembly, the pump 32 being itself driven by belts from the shaft of the high pressure pump 6. The controls for the two pumps are arranged on a control panel 42. A manually operated hose reel 51 is also provided, the hose of which is fed from a tapping from the main water delivery pipe 26. This hose terminates in a spray gun and incorporates a quick shut-off control valve and is used for cleaning the manhole of the sewer concerned.