baber/WOPTO huggingface dataset:
Patent GB-164223-A (GB)
Title: Petrol or other liquid fuel tanks for motor cycles
IPC: B62J35/00
Filed: 1920-05-13
Abstract: 164,223. Wooler, J. May 13, 1920. Fuel-containers.-Motor-cycle fuel tanks of the kind having a portion projecting forwardly of the steering head are formed in two separate parts, the rear tank 1 being secured to the frame tubes by studs 2 and carrying at its front end the forward tank 5. A recess in either tank accommodates the steering head 9 and control wires 6.
Patent GB-132841-A (GB)
IPC: B62D49/00
Abstract: 132,841. Leadbetter, T. A. N., Gilchrist, A. L. K., and Tate, W. H. Aug. 23, 1918. Secondary frames and three-point suspension.- Comprises the mounting of the rear pair of wheels in tractors so that they can adjust themselves about a longitudinal axis to suit inequalities in the ground. The mounting of the rear wheel is shown in Fig. 3 in plan. The axle 18 of the rear wheels 17 is held in a member 19 journaled at its ends in the vehicle frame.
Patent GB-541604-A (GB)
Title: Circuit arrangements employing critical transit time electron discharge devices
IPC: H01J25/00
Filed: 1940-08-21
Abstract: 541,604. Thermionic valves and circuits therefor. STANDARD TELEPHONES & CABLES, Ltd. Aug. 21, 1940, No. 13284. Convention date, Feb. 17. [Classes 39 (i) and 40 (v)] The terminal impedance of a high-frequency circuit is predetermined by a diode coupled thereto and having means to vary the electron transit time to cause it to be critically related to the high-frequency period so as to function as a negative resistance; preferably an atmosphere of gas such as argon of ionizable vapour such as mercury is used to permit a larger flow of electrons by neutralizing the space charge. The diode may be connected across the input to an amplifier, Figs. 1 and 2 (not shown) or across the anode circuit of an oscillator, Fig. 4 (not shown). Fig. 6 shows a triode oscillator 10 in which the diode 14 is used to provide a " stiff " frequency control circuit, Fig. 7 showing the equivalent circuit and the lead inductance 19, anode-cathode capacity 20 and the negative resistance 21 of the diode 14. A diode may be connected in parallel to a tuned Circuit oscillations being produced in virtue of critical transit time in the diode, Fig. 8 (not shown) as described in Specification 516,750. The Specification as open to inspection under Sect. 91 also shows Fig. 9 (Cancelled) a diode with a mercury pool cathode 3 and an anode 2 insulated from the envelope 1 which forms a conducting resonant cavity and serves as the oscillatory circuit. Fig. 10 (Cancelled) shows an electron gun 3, an anode 2, and accelerating electron 34 a pool of mercury 33 providing ionizable gas. A closed wave guide 36 constitutes a resonant cavity as described in Specification 516,750 and is coupled to a wave guide 40. In a modification, Fig. 11 (Cancelled and not shown), the electron beam passes transversely through the wave guide. Fig. 13 (Cancelled) shows an oscillator using the principle of velocity modulation as described in U.S.A. Specification 2,096,460. A similar arrangement without the back coupling may be used as an amplifier. This subject-matter does not appear in the Specification as accepted.
Patent GB-945296-A (GB)
Title: Improvements in or relating to clutches for conveying rotary motion
IPC: F16D11/12
Filed: 1959-04-18
Abstract: 945,296. Overload slip clutches. G. L. HALL. April 27, 1960 [April 18, 1959], No. 13301/59. Heading F2C. An overload slip clutch comprises pawls 9 slidable outwardly in radial slots in a driving disc 5 into engagement with grooves 13 in a driven drum 10. The pawls are cammed outwardly into engagement with the grooves by an axially movable adjustably spring-pressed plunger 16 acting on the shaped inner ends of the pawls 9. The leading and trailing edges 12 of the pawls are bevelled at suitable angles and co-operate with correspondingly shaped sides of the grooves so that the pawls yield on overload. The clutch may be disengaged manually by a push-rod 23 which abuts the plunger 16 and which projects from a hollow driving-shaft 7 fast with the disc 5.
Patent GB-378072-A (GB)
Title: Improvements in proportioning valves for gas heated furnaces
IPC: C11C3/00
Filed: 1931-05-06
Abstract: 378,072. Gas furnace burners; valves. BRAYSHAW FURNACES & TOOLS, Ltd. and BRAYSHAW, S. N., 2, Mulberry Street, Hulme, Manchester. May 6, 1931, Nos. 13327 and 23524. [Class 75 (i).] A gas-heated furnace A, such as described in Specification 119,553, [Class 51 (i), Furnaces and kilns, Combustion apparatus of], is provided with a single rotary plug valve B with two separate passages for gas and air respectively, or with two plug valves D, D<1> geared together, so as to supply a constant or approximately constant proportion of gas and air to the burners at any position of the valve or valves. The latter are provided with toothed wheels or quadrants e<1>, e<2> in mesh with a pinion e on a shaft E<2> operated by a handwheel E calibrated to indicate in conjunction with a fixed pointer E<1> the position of the valve or valves. A damper F in the flue G is operated simultaneously with the valve or valves by means of a lever H actuated by a scroll or screw-thread f on the shaft E2. Reference has been directed by the Comptroller to Specifications 4416/82, 16571/98, [both in Class 75, Lamps &c.], and 302,714, [Class 75 (i), Burners &c.].
Patent GB-679359-A (GB)
Title: Improvements relating to voltage regulators for electrostatic generators
IPC: H02N1/12
Filed: 1951-06-05
Abstract: 679,359. Discharge apparatus. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. June 5, 1951 [June 27, 1950], No. 13337/51. Class 39 (i). [Also in Group XXXV] The terminal voltage of an electrostatic generator of the belt type is controlled by means of a terminal leak electrode from which leakage occurs to the terminal electrode to vary its potential. The potential of the leak electrode is variable in response to an input signal derived from a capacity coupling responsive to fluctuations in the potential of the terminal electrode. As shown, the charge carrying belt 2 is sprayed with charge from an ionizing electrode 7 comprising a series of needles and supplied by a source 9. The charge is collected from the belt on to a terminal electrode 3 by means of an electrode 10 which may also comprise a series of needles. In the form shown, the potential produced is used for accelerating ions along ion accelerating tube 11 from a source 12 supplied with a suitable ion-producing voltage from generator 15 and circuit 16. The tube is evacuated by a pump 14 and the protons and molecular hydrogen ions from the source 12 are separated by a magnetic field produced by an electromagnet 21. This causes the protons to pass along the tube 24 to target 25 for the purpose of producing a desired nuclear reaction, while the molecular hydrogen ions pass along tube 24<SP>1</SP> through an adjustably energized electrostatic analyzer 26 to a pair of collector electrodes 27, 28 where they are used to control the potential of terminal electrode 3 so that the proton energy is maintained constant. The molecular hydrogen ions are focused at the desired energy level by means of the electrostatic analyzer 26 so that they fall in equal amounts on electrodes 27 and 28. These electrodes are connected to an amplifier 38 which amplifies the difference of potential of these electrodes. The output of the amplifier is fed through a mixer 39, e.g. of resistance type, to a controllable high-voltage supply feeding corona electrode 30. This electrode acts as the variable corona leak to control the potential of the terminal electrode 3. Oscillations in the terminal potential are prevented by a second feed-back loop from the capacitance coupling device 45. Fluctuations in terminal potential are picked up by plate 48, passed through an A.C. amplifier 46 and phase-shifter 47 to the mixer 39 where they are mixed with the signal from amplifier 38 and the composite signal is used to control the high voltage supply 41 to the corona leak electrode 30. In order to prevent the average voltage of electrode 30 passing outside the control range due to prolonged voltage variations of terminal electrode 3, an integrating circuit 62 may be connected between the electrode 30 and the supply 9 to alter the charge supplied to the belt. The generator is enclosed in a casing 1 filled with air or nitrogen at 150 lb. per square inch pressure.
Patent GB-1306901-A (GB)
Title: Internal combustion engine idle speed controllers
IPC: F02M3/06
Filed: 1971-05-06
Abstract: 1306901 Valves GENERAL MOTORS CORP 6 May 1971 [25 May 1970 (2)] 13406/71 Heading F2V [Also in Divisions F1 and G1] A valve element 46<SP>1</SP>, Fig. 4, or 112, Fig. 5, controlling air flow into an I.C. engine induction passage is moved by a body of thermosensitive material 74<SP>1</SP> or 132 to reduce the air flow when the material is heated by an electric heating element 84<SP>1</SP> or 142, e.g. a disc of sintered barium titanate. The valve element 46<SP>1</SP> moves against the force of the spring 501 until it abuts the seat 421. Further expansion of the material 74<SP>1</SP> results in compression of the spring 62<SP>1</SP>. The valve element 112 has a contoured opening 114 co-operating with an outlet port 108 and is moved against the force of the spring 122. The spring 116 biases the valve element 112 against the wall 110 defining the port 108.
Patent GB-458025-A (GB)
Title: Improvements in or relating to the refining of carbon-containing alloys and metals
IPC: C21C5/52
Filed: 1935-05-07
Abstract: In a process for refining carbon-containing metals and alloys in an induction furnace in the presence of a reducing atmosphere obtained by expelling the initial atmosphere by means of an inert gas or vapour and subsequently removing the inert gas &c. by the introduction of the reducing gas, the introduction and removal of the gas for expelling the atmosphere in the furnace is effected only when the bath has become practically motionless by cutting off the current and when a protecting slag layer has been formed due to the particles in the slag rising to the surface when the current is cut off.  The charge is normally covered by a slag but if no slag is present a slag-forming substance is added before the current is cut off, the slag layer being removed before switching on the current again. Alternatively, when no slag is present, slag-forming substances in small amounts are added before cutting of the current, but this slag which forms a skin is not removed before the current is switched on again.  Slag forming substances which are added comprise hydroxides or carbonates or mixtures thereof of the alkaline or alkaline earth metals.  The process may be applied to the refining of iron or iron alloys such as ferrochromaluminium ferrochrommagnesium and ferrochromcalcium.
Patent GB-1219941-A (GB)
Title: Improvements in or relating to the manufacture of concrete reinforcing steel mats
IPC: B21F27/10
Filed: 1968-03-20
Abstract: 1,219,941. Welding by pressure. BAUSTAHLGEWEBE G.m.b.H. 20 March, 1968 [23 March, 1967], No. 13506/68. Heading B3R. In making concrete reinforcing steel mats consisting of spaced longitudinal rods welded to spaced transverse rods all the longitudinal rods are fed to an initial position with their leading edges in line, some of the longitudinal rods are retracted to a position out of the operating range of the welding electrodes, a number of transverse rods are welded to the non-retracted rods, the retracted rods are returned to their initial position and transverse rods are welded to all the longitudinal rods. Longer rods 1 and shorter rods 3 are passed through guide cones 8 in a beam 7 and then through guide tubes 4 to abut stops 6 behind spot welding electrodes 5 as shown in Fig. 1a. The shorter rods 3 are then clamped to the beam 7 and the latter is then retracted by a pair of cylinder/piston devices 9 to withdraw the ends of the shorter rods from the stops 6 to occupy positions out of the welding area as shown in Fig. 1b. A transverse rod 2 is applied from above across the longer rods 1 and is welded thereto by the electrodes 5, feeding hooks 11 then advance the mat assembly of rods 1 and 2 and the process is repeated for a number of rods 2. Then the piston/ cylinder devices 9 return the beam 7 to bring the shorter rod 3 beneath the electrodes when a transverse rod is welded to all the longitudinal rods. The means for clamping the shorter rods to the beam 7 comprises above the beam 7 a further beam which is movable vertically by a pair of pressure piston-cylinder devices and carries means to depress a clamping member on to each shorter rod passing through the beam 7. Instead of using shorter and longer longitudinal rods all the longitudinal rods may be of the same length, some being displaced relatively to the others.
Patent GB-483358-A (GB)
Title: Improvements in and relating to electric discharge devices
IPC: H01J13/02
Filed: 1937-05-18
Abstract: 483,358. Metallic - vapour apparatus. BRITISH THOMSON - HOUSTON CO., Ltd. May 18, 1937, No. 13846. Convention date, May 18, 1936. [Class 39 (i)] In apparatus such as mercury-vapour rectifiers the cathode spot is formed on gallium, while the vapour is supplied by mercury or an amalgam thereof. The gallium and the mercury may be contained in separate vessels communicating by a narrow passage, the temperature of the mercury container being regulated.
Patent GB-399751-A (GB)
Title: Improvements in telescopic instruments for measuring objects at a distance
IPC: G01C1/06
Filed: 1933-05-12
Abstract: 399,751. Telescopes. AKT.-GES. C. P. GOERZ OPTISCHE ANSTALT, Pressburg, Bratislava, Czecho-Slovakia, and RAABER, H., 5, Sonnleithnergasse, Vienna. May 12, 1933, No. 13873. [Class 97 (i).] In order to project a three-dimensional measuring mark structure (i.e. one having a dimension in the direction of the optical axis) into the image plane of a telescope with substantial freedom from parallax, a diaphragm is provided having a small aperture which is situated at the focus of the projection objective and acts as a projection centre. In the form shown the mark structure is represented by an arrow 1, the rays from which pass through the central aperture of a diaphragm 3 at the focus of the objective 2. The rays leaving the objective pass through a cube 6 comprising two right-angled prisms with a semireflecting cemented surface, and form an image for observation through the eyepiece 8, 9. The rays from the object to be measured are received by an objective 4 and, after reflection by a prism 5 and the cemented surface of the cube 6, form an image in the focal plane of the eyepiece. The distance of the diaphragm 3 from the mark 1 can be adjusted in accordance with the distance of the object to be measured by axially displacing the diaphragm together with the objective 2 by a knob 12, the adjustment being indicated on a scale t. The mark is illuminated by a lamp 11 in conjunction with a ground glass screen 10. The mark may consist of a small sphere mounted on the end of a needle which is so disposed in a lateral projection from the casing that it can be displaced along any of three mutually perpendicular directions, the displacements being indicated on scales.
Patent GB-1010167-A (GB)
Title: Improvements in or relating to centerless machines for the helical winding of tapes and the like
IPC: B31C3/00
Filed: 1964-04-03
Abstract: 1,010,167. Coiling. C. GUITON. April 3, 1964 [April 10, 1963], No. 13873/64. Heading B3E. [Also in Division F2] In a machine for the continuous helical winding of a tape 8 wherein the tape is paid out from a feed spool 11 mounted on a fixed support and wound in the form of concentric convolutions 8a, 8b on rollers 7 carried by a rotary annular plate 1 before being wound as a helix on a mandrel in the central portion of the plate, the rollers are mounted on crank arms 5 movable on the plate in the direction of the centre of the plate in order to vary the perimeter of the polygon of which the rollers constitute the vertices and along which the different concentric convolutions of the tape are wound. A device is provided for moving the rollers outwards under normal operating conditions and thus tensioning the tape and is adapted to cause the simultaneous displacement of all the rollers towards the centre of the plate 1 when a feed spool has become exhausted and the free or trailing end of the tape has to be joined to the leading end of a refill spool without stopping the machine. As shown, the plate I is mounted on rollers 30 and rotated by a motor 32, and the arms 5 are carried on spindles 3 which mount sprockets 4 connected by a chain 12 attached at one end to a pneumatically-operated pistoncylinder assembly 13 and at the other end to a tension spring 14. In operation, the tape 8 is wound to form concentric convolutions on the rollers 7, the innermost layer 8a passing over an adjustable and pivoted tensioning device 15, or a braked roller, and wound helically on to a mandrel 10. Before the trailing end of the tape leaves the spool 11 an electromagnetic device is operated to cause the jaws of a clamp 24 to become interlocked on the tape, the clamp engaging in notches 21, in plates 19a carried by an annular member 17 which is then carried along by the plate 1 until it is desired to hold the outermost convolution 8b of the tape against motion when a brake 22 is actuated to lock the member 17; air pressure is applied to the piston cylinder device 13 to cause the spring 14 to exert a tractive effort on the chain when the rollers 7 pivot towards the mandrel to allow the inner convolutions of the tape to be wound on the mandrel while the trailing end of the tape is connected to the leading end of a new spool of tape. The clamp 24 is then removed. The tapes may be joined upstream or downstream of the clamp and alternatively, the electromagnetic device is dispensed with and a clamp provided on the feed spools 11. The machine may be used for winding tape convolutely.
Patent GB-360422-A (GB)
Title: Improvements relating to lead alloys
IPC: C22C11/10
Filed: 1930-05-06
Abstract: Lead alloys contain up to about 1 per cent of zinc, and up to about 1,8 per cent of tin or antimony or both.
Patent GB-1170763-A (GB)
Title: Improvements in controls for electrical heating apparatus
Inventor: WEARING RONALD GEORGE
IPC: H01H89/04
Filed: 1966-03-29
Abstract: 1,170,763. Thermal switches; mechanical switches. OTTER CONTROLS Ltd. 17 March, 1967 [29 March, 1966], No. 13939/66. Heading H1N. A control unit, e.g. for an immersion heater having two elements (2, Fig. 1), includes two bimetals 16 adapted to operate at different temperatures and/or heat outputs and mounted on a lid 12 of a housing 11 and a manual selector switch 15 for preselecting one of the bimetals for operation and also being mounted on lid 12. Each bimetal comprises a snapacting element 16 as described in Specification 657,434 or 600,055, carrying a contact 26 on its movable tongue 18 and connected at its bridge through an insulating block (21, Fig. 4) and an L-shaped bracket (22, Fig. 4) to lid 12. Part 23 of bracket (22) carries a double-ended fixed contact, one end 24 being co-operable with contact 26 and the other end 25 being selectively engageable with a double-ended movable contact 33 of the selector switch 15. Switch 15 is operated by a rocking lever 29 having pins 30 embracing L-shaped snap-action spring 31 which has one end secured to lid 12. If three or more bimetals are provided, the selector switch contact may be rotationally mounted, which movement may be remotely controlled through a Bowden cable.
Patent GB-1449795-A (GB)
Title: Adhesive plaster
IPC: A61L15/58
Filed: 1975-04-04
Abstract: 1449795 Adhesive plaster BEIERSDORF AG 4 April 1975 [5 April 1974] 13979/75 Heading B2E A tearable adhesive plaster consists of a carrier web having a pressure sensitive adhesive based on natural rubber applied, either wholly or partly, on one face thereof, the carrier web being of rayon yarns which have been made by the open-ended spinning process.
Patent GB-553069-A (GB)
Title: Improvements in fluid-pressure lifting means
IPC: B66F3/35
Filed: 1941-10-31
Abstract: 553,069. Lifting-jacks. PHILLIFS RUBBER SOLES. Ltd.. and EYLES, G. F. Oct. 31, 1941, No. 14038. [Class 78 (iii)] Inflatable bags of rectangular shape with one or more compartments are interposed between the ground and the object to be fitted. Two superposed bags 6, 6a are each composed of a strip of material 7a, 8a with threads united at 7x, 8x in the common surface, the remaining two sides in each case being a separate rectangle of material. A strip 10 covers the joint between the bags. Flaps 11 facilitate securing the the bag in position and patches 12 assist handling. Both bags may be inflated from the supply pipe 15, through non-return valves 13. Deflating tubes (not shown) are fitted, their ends when not in use being tied or otherwise closed and covered after folding down by flaps held by straps and buckles.
Patent GB-385201-A (GB)
Title: Improvements in and relating to door operating mechanism
IPC: E05D15/42
Filed: 1932-05-18
Abstract: 385,201. Operating doors by springs. MECHANICAL & GENERAL INVENTIONS CO., Ltd., 10, Charles Street, London. -(M.A.G.I.C. Ltd. (France), Soc. a. r. 1.; 97, Boulevard Gouvion St. Cyr. Paris.) May 18, 1932, No. 14113. [Class 65 (i).] A door, having its upper end guided by tracks to move substantially horizontally, has a lever mechanism, o p e r - ated by springs, connected to its lower end to open it, the door tilting about its upper end into a horizontal open position. As shown, the door 2 carries rollers at the top engaging substantially horizontal tracks 6 and is connected near its lower end to a lever 11 pivoted on the door frame. A spring 13 is attached at its lower end to the door frame and at its upper end to the cranked upper end of the lever 11, which is provided with a series of holes to permit adjustment of the spring tension. The arrangement is such that the spring acts over dead-centre to hold the door closed or to move it to the open position when the opening movement has been started by hand. A double bolt, operated by central handles 24 fitted with a lock, engages the sides of the door frame to hold the door closed.