baber/WOPTO huggingface dataset:
Patent GB-994815-A (GB)
Title: Door lock
IPC: E05B65/32
Filed: 1962-10-10
Abstract: 994,815. Door locks. J. H. ROETHEL. Oct. 10, 1962 [Oct. 16, 1961], No. 38323/62. Heading E2A. In a door latch mechanism, the keeper 77, see Fig. 7, comprises a rack 79 having teeth 80, 81 engageable by the hooked end 25 of the latch element 22 in respectively the "safety latched" or "latched" positions, the rack 79 being provided with a spring-loaded wedge 87, which engages, in the closed position, the edge of the case plate 12. A control member 21 formed with arms 29, 39 is engageable respectively with a compression spring 32, and a hooked arm 41 of a spring-biased bell-crank lever 45, pivoted to the casing at 65. The other arm 47 of the bell-crank lever 45 is moved by stem 49 of a push-button operable from outside the door. The bell-crank 45 may be moved from either inside or outside the vehicle through lever 57. To lock the latch, the bell-crank 45 is moved to the right of Fig. 2, by means of a lever 69 which is pressed downwardly causing its arms 62 to abut projection 63 of the bell-crank 45, thus disengaging the hook 41 from the control member 21 and rendering the bell-crank 45 ineffective to operate the latch.
Patent GB-1088439-A (GB)
Title: Amplitude discriminator for television receivers
IPC: H04N5/08
Filed: 1966-08-26
Abstract: 1,088,439. Television; transistor pulse circuits. INTERNATIONAL STANDARD ELECTRIC CORPORATION. Aug. 26, 1966 [Aug. 31, 1965], No. 38413/66. Headings H3T and H4F. A synchronizing signal separator (amplitude discriminator) for television receivers which produces sinusoidal twin-pulses in response to each horizontal synchronizing pulse comprises a separator transistor (or tube) 5, Fig. 1, to the base of which is coupled an incoming video signal, a diode 12 which is blocked when the transistor 5 is conductive, a resonant circuit 13, an auxiliary D.C. voltage source which preferably comprises a shunt RC-element 14, 15, and a resistor 11 which is connected to a D.C. voltage source U B  having a higher voltage than the auxiliary D.C. voltage source. Fig. 2a represents the video voltage applied to the base of transistor 5, t 0 -t 1  representing the horizontal synchronizing pulse, t 1 -t 2  the " back porch " and t 2 -t 3  the video signal and " front porch ". During the period t 1 -t 3  transistor 5 is blocked and after the voltage applied to oscillating circuit 13 has ceased, a direct current flows from source U B  (35V) via resistor 11, diode 12, resonant circuit 13 and resistor 15 to ground. Resistors 11 and 15 are selected so that a voltage of about 26V is developed across RC-element 14, 15 and thus at the collector of transistor 5. At time to transistor 5 is opened due to the horizontal synchronizing pulses (0À6V) and thus the collector voltage, Fig. 2b, falls to zero, blocking diode 12. The resonant circuit 13 thus oscillates, Fig. 2c, and only at time t 2  does the resonant circuit voltage fall short of the supply voltage U B  thus rendering diode 12 conductive again. The resonant circuit voltage approaches aperiodically the voltage of 26V since it is damped by resistor 11. During the time of the horizontal synchronizing pulses a relatively high base current flows and the pulses are accordingly reduced in amplitude. This may be counteracted by feeding a small portion of the resonant circuit voltage having reversed polarity as compared to the fall of video signal voltage along resistor 4 by means of a winding inserted between the supply voltage source U B  and resistor 4. During the vertical synchronizing pulses separator 5 is open for longer than the period t 0 -t 1  resulting in a sine voltage which dies away very weakly instead of a double-pulse voltage.
Patent GB-1009645-A (GB)
Title: Storage rack
Inventor: D ALTRUI THOMAS NICHOLAS
IPC: A47B57/40
Filed: 1964-09-22
Abstract: 1,009,645. Racks. MIDLAND MACHINE CORPORATION. Sept. 22, 1964, No. 38633/64. Heading A4B. A storage rack has posts 11, 12 of sheet metal connected by truss members 13 to form upright frames 10, the front corner of the posts being cut away at vertically spaced intervals to provide slots 18 to receive tongues 22 on connector brackets 19 at each end of horizontal stringers 14. In order to prevent accidental dislodgement of the stringers 14 a wedge lock device 25 Fig. 9 comprising a shank 26 with an upwardly bent flange 27 and a wedge 28 is engaged with the slots.
Patent GB-981179-A (GB)
Title: Apparatus for treating the hot surfaces of combustion devices
IPC: F28G1/16
Filed: 1961-10-30
Abstract: 981,179. Spray-producers. J. W. KECK. Oct. 30, 1961 [July 19, 1961], No. 38804/61. Heading B2F. [Also in Divisions F1, F2 and F4] The surface exposed to the hot combusition gases of direct-fired combustion devices are treated by injecting an aqueous slurry consisting, e.g., predominantly of water and magnesium oxide, against the surfaces (see Division F4) by a nozzle mounted on the combustion device. In the case of a steam boiler, soot blowers may be used which in addition to injecting pressurized cleaning fluid, such as air or steam, are then arranged to inject the treating slurry, the fluid being used at a lower pressure as a blowing medium for the slurry. A blower comprises a nozzle tube 36, Fig. 2, supported by a carriage 32 on an overhead rail 28 and movable from the retracted position shown by an air motor 34 which drives a gear 37 meshing with a rack 30 on the bottom of the rail. The rear end of the tube 36 carries a sleeve (not shown) provided with a driving sprocket whereby the tube is rotated as it is advanced into the boiler. The tube fits telescopically over a feed tube 39 to which the slurry is supplied via conduit 74. The pressurized fluid is supplied via valve 40 and the same or other pressurized fluid is passed also along an inner tube 54 and discharged into a seal formed by annular grooves which prevents leakage of the slurry between the tubes 36 and 39. The fluid and slurry are injected into the boiler through a pair of diametrically opposed nozzle holes 58. In operation, as the nozzle tube is moved forward, rods 62 on the carriage actuate cams to cause successive opening of valve 40 and a valve 78 in the slurry supply conduit. Thus the pressurized fluid is blown first through holes 58 and carries the slurry with it to be discharged into the boiler in the form of fine droplets. On the return movement of the nozzle tube, the slurry valve 78 is closed before the valve 40 so that the pressurized fluid has time to purge the tubes 36, 39 of any residual slurry. Holes 60 allow for drainage. In a modified construction, Figs. 5A and 5B (not shown), which obviates the need for the tube 54 and seal 52, the slurry is supplied to an inner discharge tube which opens into tube 36 and is swept forward by the pressurized fluid.
Patent GB-935648-A (GB)
Title: Method and apparatus for cigarette rod forming
IPC: A24C5/18
Filed: 1959-11-16
Abstract: 935,648. Cigarette - making machines. AMERICAN MACHINE & FOUNDRY CO. Nov. 16, 1959 [Dec. 22, 1958], No. 38853/59. Class 130. Tobacco leaf conveyed as in Specification 902,066 by an air stream to a pipe 10 is shredded in the gap between high-speed rotors 14, 16, the shreds passing spirally along a cone 34 so that they are in twisted relationship in a cigarette rod formed therefrom by means 42. The rotors 14, 16, which cut by the action of the boundary layer of air carried therewith, as in Specification 902,067, may be solid with interengaging circumferential teeth or built up of discs separated by spacers, and act as an airsealing door, surplus air being removed through pipes 26, 28 whilst sufficient air to replace that carried away in the cigarette rod enters the otherwise still-air zone inside the cone 34 by an inlet 52.
Patent GB-1030047-A (GB)
Title: Method of heating by induction
IPC: H05B6/02
Filed: 1964-09-24
Abstract: 1,030,047. Induction heating. DEUTSCHE EDELSTAHLWERKE A.G., and ALLGEMEINE ELEKTRICTATS-GESELLSCHAFT. Sept. 24, 1964 [Sept. 25, 1963], No. 39029/64. Heading H5H. The surface of a crank-pin 1 is inductively heated by a coil 4 covering the major part of the surface and two coils 6 (only one shown), which heat the radii 2. The inductors 4, 6 may be supplied by sources having different characteristics, frequencies and/or power and are spaced apart so that air coupling between them is suppressed, thereby preventing interference between the different sources. In an axially-aligned arrangement of coils, Fig. 1 (not shown), this suppression is achieved by providing the coils with laminar yokes. Various heating effects may be obtained by varying the supply parameters and time of energization of the coils.
Patent GB-1189184-A (GB)
Title: Device for Emitting Sonic and Ultrasonic Frequency Vibrations into Liquid Media
Inventor: KELLER OLEG KONSTANTINOVICH
IPC: B06B1/06
Filed: 1967-08-25
Abstract: 1,189,184. Piezo-electric transducers. VSESOJUZNY NAUCHNO - ISSLEDOVATELSKY INSTITUT TOKOV VYSOKOI CHASTOTY. 25 Aug., 1967, No. 39251/67. Heading H4J. [Also in Division H2] In a device for emitting sonic vibrations into a liquid in a receptacle 1, a bolt 5 passes through the receptacle wall, the head 6 being tightly held to the wall by a frequency reducing member acting as a nut which clamps together a further frequency reducing member 3 and two piezoelectric members 2. The bolt 5 is of stainless steel and good acoustic connection is obtained by using nickel-plated copper gaskets 7. The piezo-electric elements 2 are connected in parallel by a terminal 9 on one of the gaskets 7 and by a terminal 8 on the member 4. Several bolts 5 with corresponding parts 2, 3, 4, 6, 7, 8, 9 may be used. The device is for cleaning workpieces in corrosive liquids at sonic or ultrasonic frequencies.
Patent GB-1180197-A (GB)
Title: Improved Monitoring Apparatus for Supervising Rotatable Bodies
IPC: D07B7/08
Filed: 1968-08-16
Abstract: 1,180,197. Monitoring rotation electrically. FELTEN & GUILLEAUME CARLSWERK A. G. Aug. 16, 1968 [Aug.18, 1967], No.39303/68. Heading G1N. Apparatus for monitoring the state of motion of a rotatable body comprises a permanent magnet driven by the body (about an axis normal to its magnetic axis) a magnetically-activated magnetically unpolarized switch, operated by the rotating magnet so as to generate electrical impulses, and integrating and amplifying circuits to activate signals and/or control means.
Patent GB-1478329-A (GB)
Title: Non-hygroscopic water-soluble sugar products and process for preparing the same
IPC: C13B50/00
Filed: 1974-09-09
Abstract: 1478329 Sugar composition CPC INTERNATIONAL INC 9 Sept 1974 [13 Sept 1973] 39319/74 Heading A2B A free flowing non-hygroscopic sugar composition comprises a white sugar component copulverized with a water-soluble maltodextrin, having a D.E of not greater than 20 present as a pulverizing aid in an amount of 5-20% by wt., said composition having an average particle size such that 95% passes through a 325 USS sieve and a ratio of weight average particle size to number average particle size of less than 2. The composition may also contain up to 3% by wt. of a starch and is made by dry blending the components followed by pulverization to the required size. The composition is used in making fondant.
Patent GB-887970-A (GB)
Title: Improvements in and relating to internal combusion engine valve actuator mechanisms
IPC: F02F1/42
Filed: 1960-11-16
Abstract: 887,970. Valve gears; lubricating. GENERAL MOTORS CORPORATION. Nov. 16, 1960 [Nov. 23, 1959], No. 39320/60. Classes 7(2) and 7(6). A rocker arm 30, Fig. 1, pivotally mounted intermediate its ends and actuated at one end from the engine, e.g. via a cam-shaft, has at its other end, a bridge member 32 pivotally connected intermediate its ends and having at each end a pallet portion 38 engaged with a poppet valve stem 18. The bridge 32 may be stamped and formed from steel plate and then heat treated and hardened. A rocker arm 36 Fig. 2, can be formed, e.g. by brazing or riveting, from stampings 36<SP>1</SP> and 36<SP>11</SP> having openings 33<SP>1</SP>, 39<SP>1</SP> and 43<SP>1</SP> in which are pressfitted bushes 33, 39 and 43. Engine lubricant is supplied via passages 28, 41 to a radial passage 41<SP>1</SP> in a hollow shaft 41 which carries the bush 39. During pivotal movement of the rocker 36, registration of the passages 39<SP>11</SP> and 41<SP>1</SP> allows lubricant to flow along passages 37<SP>1</SP> and 37<SP>11</SP> to the radial ports 33<SP>11</SP> and 43<SP>11</SP> to lubricate hollow pivot pins 35 and 45 which are secured in the aligned openings by riveting over the pivot pin ends. At the pivotal connection 34, lubricant drains downwardly on to the pallets 38 and therefrom to lubricate the engaged surfaces of the pallets 38 and the valve stems 18. In a modification a rocker arm 136, Fig. 4, is fabricated from a single sheet metal stamping which is folded to each side of a centre line, and has a limit stop arm 147 and a limit stop boss 149 which prevent excessive pivotal movement of the bridge 32.
Patent GB-874798-A (GB)
Title: Improvements in or relating to piezo-electric crystals
IPC: H03H9/19
Filed: 1957-12-18
Abstract: 874,798. Piezo-electric crystals. PHILIPS ELECTRICAL INDUSTRIES Ltd. Dec. 18, 1957 [Dec. 21, 1956], No. 39355/57. Class 40(8) Spurious transverse vibrations in an elongated quartz crystal plate cut to oscillate in a longitudinal mode are reduced by giving the major surfaces of the plate the shape of a parallelogram with angles different from 90 degrees. The invention may be applied to X-cut crystals in which the resonance frequency of second order transverse oscillations is near the main resonance frequency. In Fig. 2 the resultant displacement is denoted by the vector R at an angle (#+#) from the crystallographic Y axis, whilst the direction of wave propagation is given by the line N making an angle # with the Y axis. Due to anisotrophy of the crystal, R and N are co-incident only for a cut of -18À5 degrees (measured from the Y axis). However, the temperature coefficient is unduly high for this value. An orientation of +5 degrees, which gives an advantageous temperature coefficient, may instead be chosen for the long side of the plate. To eliminate the transverse component it is necessary that R must lie in the direction of length, i.e. (#+#) must equal 5 degrees, and this is obtained if the smallest angle of the parallelogram is made equal to (90 - #) degrees i.e. if the short side is at right-angles to N. An approximation to # may be obtained from the graph (Fig. 3) relating # to (# + #) which may be assumed to be linear between -2 degrees and +14 degrees. Additional suppression of the spurious resonance may be obtained by mounting the crystal in an incomplete, e.g. 90%, vacuum. The invention may also be applied to NT and MT cut crystals in which cases it is necessary, in addition, to cut the end surfaces at an angle differing from 90 degrees to the major surface.
Patent GB-1016975-A (GB)
Title: Improvements in or relating to electronic switching arrangements
Inventor: BARTON KENNETH
IPC: H03F3/393
Filed: 1963-10-07
Abstract: 1,016,975. Transistor gating and amplifying circuits. GEORGE KENT Ltd. Oct. 5, 1964 [Oct 7, 1963], No. 39474/63. Heading H3T. In a gating or chopping circuit employing a field-effect transistor, the effect of leakage current in the transistor is minimized by means of a compensating voltage applied over a path including a reverse-connected semi-conductor diode having a leakage current/temperature characteristic equivalent to that of the transistor. The compensating planar diode may have a leakage current identical to that of the field effect transistor employed as a chopper in a modulator/demodulator amplifier and may be supplied with the inverse chopping waveform. Alternatively, a diode having a leakage current greater than that of the field effect transistor may be employed by reducing the compensating voltage or by shunting the compensating current.
Patent GB-803780-A (GB)
Title: Coating compositions
IPC: C25B3/25
Filed: 1956-12-31
Abstract: The coating compositions of the parent Specification are modified by using as solvents for the methyl methacrylate polymers solvent mixtures having boiling ranges and minimum comparative solvencies as set forth in the following tables: .20 per cent fraction.Boiling .by volume..range,  DEG  C .First.50-121 .Second.64-122 .Third.67-142 .Fourth.73-159 .Fifth.90-175 <TABS:0803780/IV (a)/1> Additional organic liquids specified for use in making the solvent mixtures are diethyl ether, methyl amyl acetate and n-butanol.
Patent GB-829647-A (GB)
Title: Improvements in or relating to metal vapour electric arc converters
Inventor: KETTERINGHAM TERENCE ALEXANDER
IPC: H01J13/34
Filed: 1956-12-31
Abstract: 829,647. Metal-vapour converters. GENERAL ELECTRIC CO. Ltd. Dec. 20, 1957 [Dec. 31, 1956], No. 39721/56. Class 39(1). A cathode arrangement in a liquid metal, e.g. mercury, arc converter comprises a narrow elongated pool-containing channel 7 having a wall 6 perforated at 8 to provide an upper level to the pool, a reservoir containing a supply 16 of the vaporisable metal and an igniter 14 for replenishing the pool from the reservoir. The other wall of the channel 7 is formed by an inverted cup-shaped member 3 of refractory material such as molybdenum attached to the upper end of a flared member 4 which is attached at its lower end to a tube 5. The wall 6 is attached to the member 4 and has a flared rim engaging with an annular quartz member 9 above which is an annular shed 10 for collecting condensed metal. The member 3 has a thin heat-conducting wall the inner surface of which is cooled by the arrangement described in Specification 810,387 and comprising a tube 11 projecting through the tube 5 and having a flanged open end closely spaced from the inner surface of the member 3. Water enters the tube 11 through the inlet 12 and after impinging on member 3 passes through the channel between the tubes 5 and 11 to the outlet 13. The igniter 14 projects a jet of mercury on to an auxiliary anode 15 to initiate a discharge, excess mercury draining back to the reservoir supply 16 through the perforations 8 in the wall 6. The igniter 14 is attached to the lower wall 2 of the stainless steel envelope 1, comprises a cylindrical chamber 17 communicating with the reservoir 16, a tube 18 extending into the discharge space of the converter towards the auxiliary anode 15, a solenoid 19 and a ball 20 of magnetic material constrained to move upwards so that upon energisation of the solenoid the ball is pulled downwards and displaces metal from the chamber 17 via the tube 18 into the discharge space. The igniter can be operated by the circuit arrangement described in Specification 817,501 whereby ignition of the converter is effected automatically should the level of metal in the channel 7 fall below that required to maintain the discharge.
Patent GB-1018490-A (GB)
Title: Apparatus for sensing information punched in a recording medium
IPC: G06K7/015
Filed: 1964-10-10
Abstract: 1,018,490. Statistical apparatus. INTERNATIONAL BUSINESS MACHINES CORPORATION. Oct. 10, 1964 [Oct. 19, 1963], No. 39738/64. Heading G4M. A hole 4, Fig. 2, punched in a record medium, is sensed by a pair of independent pins 6, 7 having centres 8, 9 located at two opposite corners of a rectangle, the sides of which are respectively equal to the maximum possible displacement of hole 4 in two perpendicular directions from a reference position. The displacement of hole 4 from the reference position may be caused by machine tolerances and variations in the dimensions of the record medium owing to variations in humidity of the atmosphere. When a card is fed step-by-step through a sensing station with one edge aligned with a guide member 3, Fig. 3, the maximum possible displacement of a hole in the direction of card feed is the same for each pair of pins 6, 7 (distance a), but the maximum possible displacement in the perpendicular direction (distance b) varies with the distance from member 3, and the line joining the centres of pins 6, 7 is accordingly differently inclined for the different index positions.
Patent GB-1343940-A (GB)
Title: Solution polymerization of conjugated diene
IPC: C08F36/04
Filed: 1971-08-24
Abstract: 1343940 Polymerization of dienes FIRESTONE TIRE & RUBBER CO 24 Aug 1971 [11 Sept 1970] 39752/71 Heading C3P  A conjugated diene is polymerized by means of an alkali metal or organo-alkali metal catalyst in the presence of dimethyl ether in an amount equal to at least 10 parts by weight per 100 parts of monomer, the temperature being kept at not more than 120‹ F. and preferably at about 40‹ F., primarily by refluxing the ether at an appropriate rate. Comonomers and/or other solvents or catalyst modifiers may also be present. The return of the cooled, condensed ether may be stopped at 60-90% conversion, allowing the temperature to rise to 120‹ F. so that the ether is driven off as the polymerization is completed. Examples describe polymerization of butadiene (predominantly by 1, 2 addition), isoprene, piperylene and butadiene plus isoprene catalysed by n-butyl lithium, n-butyl sodium, amyl potassium, sodium naphthalene, lithium or sodium.
Patent GB-1515750-A (GB)
Title: Butterfly valve
IPC: F16K1/228
Filed: 1975-09-30
Abstract: 1515750 Valves PONT-A-MOUSSON SA 30 Sept 1975 [18 Oct 1974] 39878/75 Heading F2V A butterfly valve has a closure sealing element 22 of annular form in a cavity with which it forms an annular chamber 24 connected by a conduit 26 to an upstream location when the valve is closed, there being an exhaust conduit (which may also be the pressurizing conduit) connecting the cavity to a downstream location when and only when the valve is moved from its closed position. The sealing element may be in a cavity in the valve body 1 between a flange face 14 and a ring 18 rigidly attached to the body. Alternatively the sealing element may be at the periphery of the closure, Fig. 9 (not shown). Pressure and exhaust conduits are preferably located at a point peripherally furthest from the axis of the closure shaft (7). Fig. 1 (not shown). The conduits may be a single one 26 of dual purpose with circular shape or an oblong elongated in the direction of the valve axis. Alternatively, two conduits may be employed in the various arrangements of Figs. 8, 9, 10 (not shown). In a closing operation the closure approaches the closed position with the sealing element in equilibrium by pressure balance through conduit 26. In the closed position upstream pressure is applied to the cavity via conduit 26 which, with reduced downstream pressure on the element at 25, causes a radially inward sealing force on the element. When opening, the closure only moves against the sealing force friction until the conduit 26 is open to exhaust downstream.
Patent GB-1045918-A (GB)
Title: Making commutator segments
Inventor: AXENOV GENNADY IVANOVICH
IPC: B22F7/06
Filed: 1963-10-10
Abstract: In a method of making commutator segments from a strip which tapers towards one edge a container C1 holds powdered copper and containers C2 hold steel or iron powder and the powders are fed through adjustable metering devices 10 between rollers 3.  The rollers 3 have opposed shallow V-shaped grooves to form the taper. After passing through the rollers the strip passes into a furnace wherein electrically heated rollers compact the strip to size.  A protective gas such as hydrogen or natural gas passes through the furnace and is burnt after passing therethrough.  The rollers 3 and the furnace rollers are electrically driven such that their surface speeds are equalized.  The strip passes into a cooling device, through which flows the protective gas prior to flowing through the furnace, and from thence to a press to be cut to final shape.