baber/WOPTO huggingface dataset:
Patent GB-742523-A (GB)
Title: Improvements in or relating to electronic devices for adding binary numbers
Inventor: THOMAS GRAHAM ISAAC
IPC: G06F7/50
Filed: 1950-09-11
Abstract: 742,523. Digital electric calculating-apparatus. NATIONAL RESEARCH DEVELOPMENT CORPORATION. Oct. 17, 1951 [Sept. 11, 1950], No. 22347/50. Class 106 (1). An electronic binary adder comprises a first electron discharge tube having two or three number-representing signals applied to its input circuit and providing in its output circuit a voltage whose value changes by substantially equal steps for each concurrently applied " 1 "- representing signal, a second electron discharge tube, whose input circuit is supplied with one version of the stepped-form output signal, responsive only to input voltages representing two or three " 1 "-representing signals so as to produce a " carry-out " signal, and a third electron discharge tube whose input circuit is supplied from a potentiometer network whose opposite ends are supplied respectively with a further version of the stepped-form signal and with the " carry-out " signal, the output circuit of the third tube providing a "sum " representing signal. The discharge tubes may be replaced by equivalent devices, e.g. crystal triodes. In the circuit shown in Fig. 2, input signals (pulses or potentials) A, B, C, representing digits of the two numbers to be added and a " carry-in " digit respectively, are applied simultaneously via terminals 10-12 to the control grid of valve V1, thus allowing the currents indicated in Fig. 3(a) to flow to this grid according to the number of negative-going inputs (representing " 1 "), and producing corresponsing potentials (changing in 20 v. steps) at points w, x, y, Fig. 3 (b), (c) and (d), of resistive potentiometer network R6-R8, R10 extending from the anode of V1 to a negative potential source. Valve V2, having its control grid connected to y, has such a grid-base range (a, b), Fig. 3 (d), that it will fully conduct for two on three inputs, thus producing the " carry-out " signal, Fig. 3 (e), at output terminal 13. The potentials at points x, 13 are applied to opposite ends of potentiometer R14- R15 to produce a potential at point 14, Fig. 3 (f), so related to the grid-base range (d, e) of valve V3, that the sum-representing signal, Fig. 3 (g), will appear at output terminal 15. When the circuit is to deal with series-mode pulse trains, terminal 13 is connected to 12 through a one-digit-period-delay circuit. In the parallel adder shown in Fig. 5, each circuit C has its terminal 13 connected to terminal 12 of the next higher stage. The adder is arranged to receive at terminals 10 a multiplicand M, periodically shifted along shifting register SR, through gates G controlled by the digits of a multiplier R. The sum terminals 15 are connected back to input terminals 11 through delay circuits DL. The output may be obtained in parallel form. The arrangement of Fig. 5 may be modified to provide a series-mode output. Specifications 705,479, 731,341 and 742,522 are referred to.
Patent GB-598125-A (GB)
Title: Improvements in quay fenders for the protection of ships lying alongside berths in harbours and docks
IPC: E02B3/26
Filed: 1945-08-30
Abstract: 598,125. Fenders. OLIVE, H. S. Aug. 30, 1945, No. 22369. Convention date, Nov. 10, 1944. [Class 113 (i)] A fender of spherical form is made of rubber and is hollow so that it can be inflated through the valve e. It may be thickened and reinforced at its lower part c. The mooring cable may be attached at the base of the fender, or to a net surrounding the fender. Specification 365,238 is referred to.
Patent GB-1211276-A (GB)
Title: Method of producing an adhesive-bondable leather
Inventor: FISCHER WILHELM
IPC: C14C13/00
Filed: 1968-05-10
Abstract: 1,211,276. Boots &c. PRœFUND FORSCHUNGS-INSTITUT FœR DIE SCHUHHERSTELLUNG E.V. 10 May, 1968, No. 22421/68. Heading A3B. [Also in Divisions B1-2] The bondability of leather uppers and soles in the manufacture of footwear is improved by priming the grain layer of the leather with a solution of a phenolaldehyde resin and subsequently applying a colour dressing. A second priming may be applied comprising a dispersion of a butadiene-acrylonitrile polymer or a butadiene - acrylonitrile - methacrylic acid polymer. The first priming may also include an isocyanate-modified polyester. The phenol-formaldehyde resin may be applied in solution in ethyl acetate.
Patent GB-353694-A (GB)
Title: Improvements in or relating to hats
IPC: A42B1/22
Filed: 1930-07-25
Abstract: 353,694. Hats. BROWN, A., 29, Lingard Road, Northenden, Lancashire. July 25, 1930, No. 22426. [Class 63.] A hat size-reducer comprises a leather or fabric fitment of e.g. an inch and a half breadth the lower edge of which is provided with wire or other stiffening material and extends along the inner edge of the hat at the rear, the top edge extending upwardly and forwardly into the hat and having incorporated therewith an extensible medium. The stiffener is held in a seam formed with gaps f to expose the wire to facilitate stitching the same to the hat. The top edge b is formed with a seam to receive elastic tape under tension. The stiffener is shaped to the contour of the hat, and may be of whalebone or celluloid.
Patent GB-383317-A (GB)
Title: Improvements relating to domestic refrigerating mechanism
IPC: F25B31/00
Filed: 1931-08-07
Abstract: 383,317. Separating lubricant from gases. TRIGGS, W. W., 57, Lincoln's Inn Fields, London.-(Williams Oil-o-matic Heating Corporation ; 1201, East Bell Street, Bloomington, Illinois, U.S.A.) Aug. 7, 1931, No. 22440. [Class 12 (iii).] In refrigerating apparatus, compressed refrigerant is freed from lubricant by passage through a bath 19 of lubricant before delivery to the condenser, the bath 19 being under a higher pressure than the bath of lubricant in the compressor crank case 5 so that lubricant may flow from the bath to the crank case when the liquid in the former actuates a float valve 29. The refrigerant is delivered from the compressor to the bath 19 through a pipe 18 and bubbles through the lubricant, a baffle 31 being provided across the opening 34 to the condenser to prevent particles of lubricant from being entrained with the refrigerant.
Patent GB-771056-A (GB)
Title: Power relay
IPC: G05D9/12
Filed: 1953-08-14
Abstract: 771,056. Automatic fluid level control systems. SWARTWOUT CO. Aug. 14, 1953 [Sept. 6, 1952], No. 22466/53. Class 38 (4). As shown the level of liquid in a tank T is maintained constant by control of a valve V in a conduit C leading to the tank. Variations of level are detected by a float 10 moving the core 28 of a differential transformer 11 which is compensated for ambient temperature and phase changes. A similar manually adjustable transformer 12 is provided to set the desired level and the difference between the alternating voltage outputs of transformers 11 and 12, representing the error in level, is applied to an A.C. amplifier 14 including triode valves 42, 47, 48, the sensitivity of which is adjustable by a potentiometer 59 controlling negative feedback. The output of amplifier 14 is applied to a phasesensitive rectifier 16 which produces a D.C. signal corresponding in polarity and magnitude to the sense and magnitude of the error in level. This D.C. signal is applied to an amplifier triode 77 provided with negative feedback through an adjustable resistance 81, 84 and a shunt capacitor 85, so that a component dependent on rate of change of error is introduced into the D.C. signal which is then applied to a two-valve amplifier 18 including valves 100, 101 provided with negative feedback through a series capacitor 104 and adjustable shimt resistor 105, and positive feedback through resistances 108, 109, so that a component dependent on the integral of error is introduced into the D.C. error signal which, through leads 163 and 119 energizes a moving coil 115. Moving coil 115 acts through a lever pivoted at 118, on a diaphragm 125 so that a valve 132 or a valve 127 is opened, according to the direction of movement, until the air pressure in a chamber 124 is representative of the error by increase from an air supply 129 or reduction to atmosphere through vent 126. The pressure in chamber 124 is communicated through conduit 136 to a larger diaphragm 137, movement of which controls larger valves 142, 144 in a manner similar to valves 127, 132 so that a pressure corresponding to the error is produced in chamber 139 to control valve V in conduit 148. Power supply for the system is provided through a constant voltage transformer 20. Rectifier 22 provides the H.T. supply while rectifiers 87, 103 provide backing- off voltages in the feedback circuits. The rate component may be eliminated by appropriate setting of resistance 84 and the integral component by operation of switch 107. Automatic control of transformer 12 on a time basis is referred to. There is provision for sense reversal of the phase-sensitive rectifier and moving coil 115 to suit deifferent types of system. Specification 771,057 is referred to.
Patent GB-180255-A (GB)
Title: Improvements relating to road and rail vehicles
IPC: B65D90/14
Filed: 1921-08-24
Abstract: 180,255. Howe, N. Aug. 24, 1921. Vehicles with removable bodies.-A:.detachable body, for a rail or road vehicle, which.can be raised clear of the vehicle chassis by mechanism on the chassis or body, is provided with means which render it self-supporting when detached from the chassis, the means supporting it in such a position that the detached chassis can be withdrawn from under it leaving it standing on its own support until the chassis is subsequently run under it to pick it up. The detachable body 10, Figs. 1 and 2, has legs 11 which normally lie horizontally beneath the body but which can be drawn out laterally from their pivoted mountings and can then be turned down to support the body. In practice the. body is raised on the chassis by lifting-jacks 20 mounted.on the body or on cross, members 21 and the legs 11 are turned down, screw or other mechanism rendering their feet adjustable to inequalities of:ground. The jacks 20 may be operated in pairs or simultaneously by hand or-power: In case the chassis is not run exactly beneath the body the cross members 21 are provided with, slides 34 which engage with ribs on the side members 33 of the chassis by screw-and-nut or other mechanism 35, 36 and afterwards the body can 'be drawn forwards over balls or short rollers 41 on cross members 42 by a chain or the like wound on a drum 37 fixed to the chassis. The body is secured to the chassis by mechanism comprising transverse locking bars 43, Fig. 11, mounted in lugs 44 beneath the body and threaded through flanges on brackets 45, fingers 46 on the bars passing through the flanges and holes in the heads 23 of the lifting jacks 20.
Patent GB-1102144-A (GB)
Title: An electric clock
IPC: G04C15/00
Filed: 1965-05-27
Abstract: 1,102,144. Electric motors; control of A.C. motors. K. DIEHL. 27 May, 1965 [5 June, 1964], No. 22543/65. Headings H2A and H2J. [Also in Division G3] An electric clock utilizes a synchronous motor comprising a permanent magnet rotor and one stator coil supplied with a synchronizing frequency and a further stator coil connected periodically to a direct current supply by means of switching device controlled by the signal induced in a third stator coil, pulses being fed alternately to the first two coils. As described, the motor may be driven by a dry battery and may be synchronized by a transistorized oscillator of the torsion, leaf-spring, piezo-electric or balance wheel types. In the latter case, the balance wheel (Fig. 1, not shown) carries two pellet-shaped permanent magnets (25) which are arranged to pass a pair of coils 29, 30 during each oscillation. Voltages induced in coil 29 are amplified by transistor T2 and provide current in winding 30 so as to maintain oscillation and provide further current in winding 8 on the stator of the motor to control the speed of rotation. A voltage is induced in winding 10 on the stator of the motor each time a pole of the four-pole rotor reaches a given position. This voltage is amplified by transistor T1, providing sufficient energy in stator winding 9 to maintain rotation at a speed determined by the pulses fed to winding 8. The speed of the motor may be adjustable by replacing the balance wheel oscillator T2 by a source of adjustable frequency signal. Diodes D1, D2 maintain the current in coils 8, 9 independent of supply voltage. Motor construction.-Core-less stator coils 8, 9, 10 may be wound concentrically and cemented to a printed circuit board (Fig. 2, not shown). Figs. 4 ... 7 (not shown) relate to other coreless stator constructions.
Patent GB-782411-A (GB)
Title: Improvements in or relating to textile cloth shearing and like machines
Inventor: CHARLESWORTH HILDRED
IPC: D06C13/00
Filed: 1954-08-04
Abstract: 782,411. Cloth shearing and raising machines. WHITELEY & SONS, Ltd., W. Aug. 4,1955 [Aug. 4, 1954], No. 22584/54. Class 42 (1). A cloth shearing or raising machine is provided with means for detecting a joint in the cloth, such means being adapted to cause the operation of a delay mechanism which is driven at a speed directly related to the speed of the cloth rollers and is adapted to cause the cutter or raising roller to be moved away from the path of the cloth after a predetermined movement of the mechanism. As shown, the actuating solenoid 27, Fig. 1, of a cutter-moving mechanism as described in Specification 782,412 is adapted to be energized by closure of a switch 49, Fig. 2, carried on a lever 41 pivoted at 40 in a housing 33. The cloth 14, Fig. 1, is jointed so that there is a gap between adjacent piece ends. When a joint passes between a light bulb 30 and a photo-cell 31, the latter gives an electric impulse which causes operation of a solenoid 32, Fig. 2, whereby the end of lever 41 is depressed to bring a worm wheel 43 into engagement with a worm 38 on a shaft 36 continuously driven from the cloth rollers 11-13, Fig. 1. Rotation of worm wheel 43 rotates a face cam 48 fixed thereto until a depression 50 in the cam causes switch 49 to close. An auxiliary switch then cuts out solenoids 32 and 37 so that solenoid 27 is only operated instantaneously and worm wheel 43 is disengaged from worm 38 whereupon cam 48 returns to its zero position under the action of a torsion spring 44. The zero setting of cam 48 is determined by engagement of a stop on the worm wheel with an arm pivoted in the casing 33; the position of the arm can be adjusted by means of a knob so as to vary the delay in operating switch 49.
Patent GB-1432755-A (GB)
Title: Process for preparing cyanogen halides
IPC: C01C3/00
Filed: 1974-05-21
Abstract: 1432755 Preparing cyanogen halides electrolytically STAMICARBON BV 21 May 1974 [21 May 1973] 22596/74 Heading C7B Cyanogen halides are made by reacting halide ions with hydrogen cyanide or a salt thereof by means of a direct current in the anode chamber of an electrolysis cell in which the cathode and anode chambers are separated by a semi-permeable diaphragm and in which the pH value in the anode chamber is maintained lower than 4À0, preferably 0À5 to 2. The pH value required may be obtained by supplying acid to the anode chamber or by using a selective cation-permeable diaphragm which has a relatively low permeability to protons as a result of which a proton concentration gradient is built up over the diaphragm. The cathode chamber may be directly connected to the semipermeable diaphragm or there may be an intermediate chamber separated from the cathode chamber by a selective anion-permeable diaphragm. The anode chamber preferably contains 1 to 10% of cyanide based on the weight of CN<SP>-</SP> ions and 3 to 20 wt. per cent of the halide based on halide ions. Alkali halide metal halide and alkali metal cyanide are the preferred starting materials although others are specified. The cathode chamber need not contain any salt and both halide and cyanide may be absent. The cathode chamber preferably contains a solution of the metal hydroxide or halide. The cell is suitably operated at a temperature of between 20 and 75C with a current density at the anode of between 300 and 5000A/m<SP>2</SP>. The process is preferably continuous and HCN and/or salts thereof is/are supplied continuously to the anode chamber in a quantity of 0À5g. mol per Faraday unit of electric current passed through along with halide ion. The reaction mixture in the anode chamber is preferably led through two or more successive electrolysis cells in series wherein the current density at the anode is decreased in the successive cells.
Patent GB-216419-A (GB)
Title: Improvements in and relating to cigar, cigarette and other cases
IPC: A24F15/12
Filed: 1923-09-10
Abstract: 216,419. Gloster, Ltd., J., and Gloster, L. J. Sept. 10, 1923. Lined boxes and cases.- Cigar, cigarette and like cases and cigarette boxes made of silver or other metal are provided with linings d of tortoiseshell, celluloid or a cellulose or casein compound moulded between dies whilst hot to the form of the case and when cool sprung into position therein, being held in place under an inturned edge c on the case. The linings may be transparent or semi-transparent, and a pattern cut on one or both dies may be reproduced on the surface or surfaces of the lining. Specification 210,313 is referred to.
Patent GB-917362-A (GB)
Title: Process and apparatus for impregnating and laminating fibrous webs
IPC: B29C70/00
Filed: 1960-06-29
Abstract: 917,362. Laminates and laminating. PARKES, J. H. June 20, 1961 [June 29, 1960], No. 22695/60. Class 140. Laminates of glass and/or asbestos fibre fabric or mat, or like matting, are made by passing two matting webs one on each side of an applicator, whereby a coat of resin is applied to the confronting surfaces of the matting webs, then between rollers to ensure thorough impregnation of the webs and thereafter moulding as required end curing. The two webs coated with resin as above may be passed through the rollers between two layers of a suitable fabric, such as scrim, also coated with resin, so as to produce a laminated structure suitable for moulding. More than two webs of matting may be used. As shown, Fig. 1, two lengths of glass fibre matting 14 from supply rolls mounted on spindles 22 pass over guide rollers 23 and between applicators 15. Two lengths of scrim 25 from supply rolls 24 pass over guide rolls 26 into proximity with the glass fibre matting 14. The four plies of fabric then pass between converging pressure rollers 33 and through three further pairs of pressure rollers 34 (a and b), 35 (a and b) and 36 (a and b), whose pressure may be adjusted by hand wheels 39. The upper and lower pressure rolls are driven from a motor 17 through chain-and-sprocket drives, the lower rolls being driven through a gear-box 41 where-- by they may. optionally .be driven at a speed different from that of the upper rolls. Resin 16 is contained in reservoir 11a having a sump 43 from which the resin is pumped through a pipe 44 to a pump 19 and thence through a pipe .30 and manifold.29 to.. the.. applicators 15. The two outer applicators are as shown in Fig. 3, each comprising a tube 27 having a single row of holes 28 at spaced intervals; the middle applicator has two rows of holes diametrically opposed and facing the holes 28 in the respective outer applicators. From the rolls 36a and 36b the laminated assembly may be fed to further apparatus for moulding. The laminated assembly may be moulded to form car bodies or boat hulls. Curing may be effected with radiofrequency or I.R. heaters.
Patent GB-945404-A (GB)
Title: Improvements in and relating to crank shafts for two-stroke internal combustion engines
IPC: F02B75/02
Filed: 1961-06-22
Abstract: 945,404. Crankshafts. GOTAVERKEN. A. B. June 22, 1961 [June 30, 1960], No. 22701/61. Heading F2U. [Also in Division F1] A crank-shaft for a twelve-cylinder, twostroke I.C. engine with the cylinders in line and having an intermediate member containing the transmission to a cam-shaft or the like in the middle of the line, is characterized in that two adjacent cranks within each engine half are displaced at least 60 degrees in relation to each other and that the crank-shaft is so arranged that the engine fires alternately in each engine half, and within the halves alternately within each group of three cylinders. The angle between the crank-arms pertaining to the cylinders to each side of the intermediate member may be less than that between the crank-arms of the adjacent cylinders. Two crank-shaft bearings are provided between cylinders 6 and 7 so that even if the impulses from these cylinders occur in rapid succession any detrimental effect is avoided.
Patent GB-1105627-A (GB)
Title: Improvements in electrostatic loudspeakers
IPC: H04R19/00
Filed: 1965-05-28
Abstract: 1,105,627. Electrostatic loud-speakers. A. SHACKMAN. 12 May, 1966 [28 May, 1965], No. 22716/65. Heading H4J. An electrostatic loud-speaker comprises two fixed and apertured plates 1, 2 disposed in spaced relationship, and a flexible diaphragm having an electrically conductive surface and a non-electrically conductive surface (3a), Fig. 3 (not shown), disposed between the plates 1, 2 with the conductive surface (3a) in conductive contact with the plate 2. The plates 1, 2 are preferably parallel and curved. A continuous length of cotton 4 is wound about the plate 1 and another continuous length of cotton 5 is wound about the plate 1 plus the diaphragm 3. Felt pads 6 prevent vibration of the plates 1, 2. Local circuit.-The plates 1, 2 are coupled respectively to the ends of a secondary of an audio transformer T, a D.C. blocking condenser C being provided. A D.C. polarizing voltage is applied through a resistor R. Reference has been directed by the Comptroller to Specification 1,006,826.
Patent GB-1318174-A (GB)
Title: Apparatus for engaging and transferring yarn to a bobbin
IPC: B65H54/71
Filed: 1971-04-19
Abstract: 1318174 Device for engaging and transfering yarn HEBERLEIN & CO AG 19 April 1971 [6 March 1970] 22735/71 Headings D1F and D1J Apparatus for engaging and transfering yarn to a wind-up bobbin comprises a body 1 having a longitudinal bore 11 therethrough, a tube 2 tightly fitted in part of said bore 11, a nozzle 10 formed in the bore adjacent an end of the tube which projects into the bore, means 4 permitting a fluid pressure medium to be supplied to the nozzle 10, and a slide member 3 opposite the nozzle 10 and the said end of the tube 2 and movable transversely of the bore 11. In operation, pressure fluid is supplied at 4 and creates a suction within the tube 2 by means of the chamber 9 and nozzle 10. A yarn end is thus sucked into the tube 2 and into a bag attached to the other end of the bore 11. The slide member 3 is then depressed to close the bore 11 and at the same time the yarn is cut by a knife 14 spring-biassed against the member 3. The pressure fluid supplied at 4 is diverted by the member 3 to flow through the tube 2 and thus blow out the yarn end. The yarn end is blown on to a wind-up bobbin. The slide member 3 is spring-biassed to a position in which the bore 11 is open. The body 1 is preferably mounted on a pistol-grip having a trigger which operates the valve to supply pressure fluid, e.g. compressed air, to the means 4.
Patent GB-531872-A (GB)
Title: Improvements in or relating to chairs and the like
IPC: A61G15/00
Filed: 1939-08-05
Abstract: 531,872. Surgical chairs. WEBB, S. J. F., and LAKE, A. E. Aug. 5, 1939, No. 22741. [Class 52 (ii)] A dental chair comprises a frame A<SP>1</SP>, A<SP>2</SP> along which a bracket E, carrying the seat supports E<SP>1</SP>, E<SP>2</SP>, is adjustable and which is supported by three adjustable legs B<SP>1</SP>, B<SP>2</SP>, C. A back rest F is adjustable on the frame and is provided with an extension to which a head rest G is linked. The seat is adjustable by means of a winch around which passes a cable K secured at its ends to the top and bottom stays A<SP>3</SP>, A<SP>5</SP>.