baber/WOPTO huggingface dataset:
Patent GB-881302-A (GB)
Title: Improvements relating to phase and frequency control circuits
Inventor: INGHAM WILLIAM ELLIS
IPC: H04N5/12
Filed: 1957-01-18
Abstract: 881,302. Automatic frequency and phase control systems. ELECTRIC & MUSICAL INDUSTRIES Ltd. Jan. 20, 1958 [Jan. 18, 1957], No. 1866/57. Class 40(5). In a frequency and phase control system synchronizing pulses are applied through capacitors Cl, C2 to render conducting a pair of serially connected diodes 3, 5, so that the instantaneous voltage of a sawtooth or like skew waveform 10 derived from the oscillator 8 to be controlled is transferred to the centre tap of a resistance Rl, R2 connected across the diodes, this voltage stabilizing the oscillator 8 so that the pulses lie mid-way along the long flanks of the sawtooth. Further, to increase the pull-in range of the system when the pulses and oscillator 8 differ materially in frequency, the time constants of the circuits Cl, 3, R1 and C2, 5, R2 are made large so that one or other of the circuits is unable to follow rapidly the flyback portion of the sawtooth, and an additional control voltage is produced of correct polarity to extend the pull in range, in effect giving a two mode-control system. The polarity of the sawtooth output between R1, R2 reverses in polarity in accordance with the sense of the frequency error. The system may be applied to television. The sawtooth scan or the pulses must then be delayed by a half-period.
Patent GB-130627-A (GB)
Title: Improvements in and relating to Rotary Valve Packings for Internal Combustion Engines.
Inventor: FOWLER HENRY
IPC: F16K5/04
Filed: 1918-02-01
Abstract: 130,627. Fowler, Sir H., and Salmon, P. Feb. 1, 1918. Valves.-A packing-piece d is held in contact with a rotary cylindrical valve b by a trough-shaped spring g<2>, which itself acts as a packing-piece to prevent the escape of gases into the recess in which the spring is housed.
Patent GB-570393-A (GB)
Title: Improvements in or relating to photographic materials
IPC: G03C1/09
Filed: 1942-02-13
Abstract: A gold-thiosinamine complex is prepared by dissolving sodium aurichloride in an aqueous solution of 4 vols of thiosinamine, boiling, filtering, and evaporating to dryness in vacuo, and extracting excess thiosinamine with ether.
Patent GB-671562-A (GB)
Title: Improvements in or relating to the placing of fittings on tubing
Inventor: PAYNE ARTHUR W
IPC: B21D39/04
Filed: 1950-01-25
Abstract: 671,562. Feeding fittings to tubing. BUNDY TUBING CO. Jan. 25, 1950. No. 1925/50. Class 78 (i). [Also in Group XXII] A device for receiving a series of parts all facing in the same direction and for feeding them so as to reverse every second part end for end prior to the application of the parts to a work piece, comprises a first passage means, a second passage means, the two passage means being adapted to have single parts introduced alternately thereinto for passage of the parts therethrough, a bight shaped passage means connecting the first and second passage means, and an outlet passage means connecting into the bight shaped passage means and substantially tangentially thereto, whereby a part moving through the first passage means passes therefrom through a portion of the bight shaped passage means and then directly into the outlet passage means, and a part moving through the second passage means moves therefrom into the bight shaped passage means and reverses its direction of movement and thus moves into the outlet passage means in reversed position. Fig. 6. Pipe fittings 6 from a hopper pass down shoot 4 and are fed alternately into tubes 22 and 23 by reciprocating shuttle 15 operated through levers 30 and 16 (pivoting at 100) by piston 33, one fitting passing directly through tube 23 to outlet 25 and the alternate fitting passing down through tube 22, up tube 23, reversing therein and passing to outlet 25 in reversed position. The two fittings pass into holder 76, which holder is rotated by said piston 33 through the lever system 80, 83, 30 so that the fittings are horizontal and are piloted out therefrom by pilot rod 92 of piston 90 on to pipe T the pilot rod contacting with pipe T and the piston 90 moving relative thereto to push the fittings off the pilot rod on to pipe T. When the ends of the latter are flared, the pipe with fittings thereon is ready for despatch. Fig. 2. Pipe T is held (for the purpose of receiving said fittings) between lever 36 pivoted at 37 and lever 47 pivoted at 46, the insertion of the pipe causing actuation of switch 42 so as to operate piston 40 to maintain the pipe in position.
Patent GB-989329-A (GB)
Title: Electrical amplifying circuits
Inventor: HIRST IAN JOHNSON
IPC: H03F1/54
Filed: 1964-01-16
Abstract: 989,329. Valve and transistor amplifying circuits. STANDARD TELEPHONES & CABLES Ltd. Jan. 16, 1964, No. 1973/64. Headings H3T and H3W. The invention relates to an amplifier comprising at least two amplifying paths in parallel, e.g. valves 3, 4 and 6, 7 respectively, the inputs and outputs being connected together and a common feedback path being provided, by impedance 11 common to the cathode circuits of both valves 4, 7 and to which the common grid path of the valves 3, 6 is returned. The valves 3, 6 are provided with individual anode load impedances 14, 15; according to the invention a further impedance Z is provided interconnecting the anodes of the valves 3, 6. In this way, if either of these valves fails the corresponding valve in the second stage of amplification remains driven by the other of the input stage valves. In an arrangement with more than two stages in cascade, impedances may be provided interconnecting the output circuits of each stage (Fig. 1, not shown), the invention is also applicable to transistor circuits.
Patent GB-1328954-A (GB)
Title: Resistor compositions
IPC: H01C7/04
Filed: 1971-01-14
Abstract: 1328954 Glass-resistor compositions E I DU PONT DE NEMOURS & CO 14 Jan 1971 [16 Jan 1970] 1974/71 Heading C1M A composition for critical temperature resistors consists essentially of (a) from 4 to 40% by weight of a glass essentially consisting of, by weight, and (b) from 96 to 60% by weight of a metal oxide of the formula V 2-x M x O 4  wherein X has a value of from 0 to 0À2 and M is at least one of the metals arsenic, cobalt, chromium, gallium, germanium, indium, iridium, iron, manganese, molybdenum, nickel, niobium, osmium, rhenium, rhodium, ruthenium, tantalum, thallium, titanium and tungsten. The preferred metal oxide is V 2 O 4  or doped with ruthenium. The mixture may be screen printed, using an organic binder of which many examples are given, on to a ceramic substate usch as alumina and fired in an inert atmosphere from 700‹ up to 1100‹ C., the gases mentioned being argon, helium, nitrogen. A number of examples are given.
Patent GB-232553-A (GB)
Title: Improvements in or relating to floating docks
IPC: B63B1/02
Filed: 1925-01-24
Abstract: 232,553. M³ller, M. April 17, 1924, [Convention date]. Floating-docks. - In a floating-dock of the type described in Specification 191,356 in which the bottom of the central portion of the pontoon 1 is higher than the bottoms of the side portions of the pontoon, the lower inner edges 4, 5 of the side portions are considerably rounded off and the lateral compartments 2, 3 project laterally beyond the sides of the bottom pontoon 1. This construction of the bottom pontoon is designed to reduce the angle to which the dock must be tilted to lift the bottom of the pontoon out of the water for repairs, and the overhang of the lateral compartments 2, 3 increases the leverage of the water ballast therein when trimming so that the latter may be reduced or the height of the compartments made less.
Patent GB-1021628-A (GB)
Title: Improvements in carburettors
IPC: F02M17/16
Filed: 1964-01-18
Abstract: 1,021,628. Spray carburetters. J. P. JACOBSON. Jan. 8, 1965 [Jan. 18, 1964], No. 2290/64. Heading F1B. A hub 42 rotatably supports a shaft 43 carrying a fuel impeller 52 and turbine blades 54 actuated by the air flow, the fuel from float chamber 14 being fed through shaft 43 into a drum 51 and impelled through orifices 53 in the drum. The hub 42 and drum 51 carry streamlining cones 56, 57, the drum 51 and turbine 54 being held by a nut on the shaft 43 which rotates in a ball bearing 44. The main fuel supply passage 28 is controlled by a needle 29 actuated by a suction operated diaphragm 32, a second passage 26 for starting being controlled by a manually operated valve 24.
Patent GB-397871-A (GB)
Title: Improvements relating to cigarette cabinets
IPC: A24F15/10
Filed: 1932-01-26
Abstract: 397,871. Cigarette cabinets. CLAXTON, F. A., 11, Berrylands Road, Surbiton, Surrey. Jan. 26, 1932, No. 2322. [Class 18.] A cigarette cabinet 1 is provided on the exterior with a seating 4 for a separable lighting device 5 of the flint and with an electric glowing type, actuated by the pressure of a pivoted lever 9 on the usual actuating button 11, the device being moved by contact with a wall 10 of a cigarette compartment 2 hinged at 3 to the cabinet. A lighter of the electric glowing type may be actuated by arranging movement of the compartment 2 to actuate a spring-controlled slider mounted in a guideway the slider supporting a plunger which passes through a hole in the cabinet and opens and closes the circuit according to its position. In a further modification the opening of a hinged lid actuate the lighting device.
Patent GB-664173-A (GB)
Title: Improvements in or relating to moulded wheel rims of artificial resin material
IPC: B60B21/06
Filed: 1949-01-28
Abstract: <PICT:0664173/IV (a)/1> <PICT:0664173/IV (a)/2> Wheel rims 3 of the section shown are moulded from artificial resin material which may incorporate a woven or plaited fibrous filler, e.g. of nylon, in the mould 1, 2, 4, holes and recesses for spoke nuts being formed during the moulding by studs 6 secured to the mould part 4.  A hole for a valve stem is also formed in the rim at the same time.  The Specification as open to inspection under Sect. 91 refers also to moulding rims integral with spokes and hub, and rims of the section shown in Fig. 8 (Cancelled), having ribs 29 in the well of the rim. This subject-matter does not appear in the Specification as accepted.
Patent GB-901361-A (GB)
Title: Improvements in or relating to rotary duplicating machines
IPC: B41L11/00
Filed: 1959-01-22
Abstract: 901,361. Copying documents. RITZERFELD, W., and RITZERFELD, G. Jan. 22, 1959 [Jan. 31, 1958; Feb. 7, 1958], No. 2409/59. Addition to 842,824. Class 100 (2). In a rotary duplicating machine for printing lines or sections from a manuscript printing master sheet on to copy sheets, comprising a printing element and a counter pressure element, one of which is provided with pressure members allocated to the lines or screens of the master sheet, and which are radially settable in position relative to an axis of rotation of the said one element for selecting lines or sections of the master sheet for printing, the arrangement being such that on operation of the machine only those pressure members which have been set co-operate with the other element to effect printing of the selected lines or sections, setting means and switching means allocated to the pressure elements are provided for preparing, for subsequent radial displacement, at least one of the pressure elements, control means being provided for effecting the displacement of the prepared element only shortly before it reaches the line of printing between the two elements and for retaining the said element to the undisplaced position shortly after it has passed the line of printing. Each rod 59, Figs. 2 and 3, is set by a key 50 and Bowden cable 52 to a position where rollers 60, 62 are aligned with stationary cams 65, the selected members 56 being displaced by raised portions 66 of the cams at printing position. A cancelling member 68 when in an inner operative position resets the members 56. A further element 85 or roller smooths down raised portions of the master sheet 3. Two further cams 70 settable by a rod 71 co-operate with rollers 60, 61 on a selected rod 59 to displace a further element 56. The cams 70 are stepped on each revolution of the drum 2 through one, two or three line spaces by retractable rollers 77, 78, 79, or by the lever 71. By rotating a lever on a machine side wall 63, one or two pawls 75 can be rotated to cause lugs 76 to act on the rollers 60, 61, so that one, two or three members 56 can be selected. In another form, the rods 59 are set by an electromagnet on an arm movable to the desired line by a stepping mechanism. The pressure members can alternatively be arranged on the counter-pressure element. In another form, Fig. 5, the rods 16 carry cams 18 cooperating with rollers 19 on the pressure members 11. Each rod 16 is set by a pawl 53 actuated by a key 50, and the rods are re-set by a lever 56.
Patent GB-1376841-A (GB)
Title: Sweepers and the like
IPC: A47L11/40
Filed: 1972-01-18
Abstract: 1376841 Sweepers BISSELL Inc 18 Jan 1972 [19 Jan 1971] 2448/72 Heading A4F [Also in Division B4] In a floor or carpet sweeper, a friction connection between a handle 3 and a sweeper housing 2 comprises, in one embodiment, integral resilient strips 10, formed between slots 9, 10, which are depressed by edges of a rib 16 on handle 3 when the handle 3 is pivoted. The rib 16 merely abuts the strips 10, however, when the handle is perpendicular or parallel to the housing 2. Leaf-springs Fig.6 (not shown) may replace integral strips 10, and pivoting may be restricted by providing a transverse stop wall Fig.7 (not shown).
Patent GB-481391-A (GB)
Title: Improvements in devices for dispensing syrups and like liquids
IPC: B67D3/00
Filed: 1937-01-28
Abstract: 481,391. Dispensing syrups &c. LYONS & CO., Ltd., J., and MAYNE, D. Jan. 28, 1937, No. 2498. Addition to 456,846. [Class 116] The invention described and claimed in the parent Specification is modified in that the bottle remains inverted when delivery is not taking place, delivery being effected by swing- ing the holder .through a small angle. A stop, which is preferably releasable, may be provided positively to prevent the bottle from returning to the upright position. The centre of gravity of each bottle and bottle holder is such that the bottles normally come to rest in the inverted position, although, if a positive stop is provided, the centre of gravity may be located as described in the parent Specification. The bottle is returned to non - delivery position, when released, by the spring which urges the tap to closed position.
Patent GB-178566-A (GB)
Title: Improvements relating to engine flywheels
IPC: F16H33/02
Filed: 1921-01-20
Abstract: 178,566. Hildebrand, H. Jan. 20, 1921. Driving-gear.-A motor-cycle engine has a subsidiary flywheel e driven by variable-speed gearing so that it revolves at high speeds for low engine speeds, or by the crank-shaft direct at lower speeds for higher engine speeds. With the parts as shown, the sprocket-wheel s revolves upon the shaft h which is rotated by the wheels f, g, and is driven through wheels i, k by the wheel e which is engaged through a free-wheel clutch h<1> by the crank disc c with which it revolves. When the clutch z' is moved, by hand or automatically, so that the members m, o, engage, the wheel s rotates with the shaft h and the wheel e, driven by wheels f, g shaft h, and wheels i, k, rotates at fourfold speed.
Patent GB-705384-A (GB)
Title: Television camera tubes
IPC: H01J31/28
Filed: 1951-02-02
Abstract: 705,384. Television pick-up tubes. STANDARD TELEPHONES & CABLES, Ltd. Feb. 2, 1951 [Feb. 4, 1950], No. 2654/51. Class 39(1) The surface of the storage electrode of a television camera tube is photo-emissive and secondary emissive and it is periodically flooded from a high intensity light source so as to be charged to a comparatively high positive potential, which is subsequently reduced by image electrons from the photo-cathode followed by the electrons of the scanning beam to generate signals in an external circuit. In Fig. 1 the target comprises an insulated coating of photo-sensitive material 10 on a conductive layer 9 and is continuously exposed to image electrons from photo-cathode 8 of such velocity that the secondary emission is less than unity. The target is scanned by a beam from electron gun 1, 2, 3, 4, 5, 6 the secondary emission being also less than unity and in the fly-back period during which the scanning beam may or may not be suppressed, light from a high intensity source 18 floods the target from either side (in which case the target may be transparent) and renders the target positive by photo emission. The photosensitive material for the layer 10 may be caesiumsilver oxide, lithium or caesium alone. The lamp 18 may be a stroboscopic gas lamp or a repetitive type flash lamp controlled by a power source 21 and synchronizing pulse. Alternatively an apertured disc is rotated synchronously in front of the lamp. There may be an interval between flooding and scanning to enable the points at the beginning of the scan to accumulate a charge image from the photo-cathode. A shield 30 screens the photocathode 8 from the lamp. The signal produced during scanning is amplified by tube 16. In a modification, Fig. 4 (not shown), the storage electrode is double sided and may comprise a plurality of conductors one end of each of which is photo-sensitive, that side of the target being flooded with light. The scanning beam is on the side of the target opposite to the photo-cathode and may be of high velocity or low velocity. In a further modification, the scanning gun and photo-cathode are on one side of the target and the flooding lamp on the other. In order to avoid a shadow effect, the charging light beam may follow the scanning beam by a short predetermined interval using a Nipkow disc or a slotted drum 32 (Fig. 7) with a lens 33 focusing a light band of the width of the target electrode. Specification 705,383 is referred to.
Patent GB-1171254-A (GB)
Title: Arrangement for On-Load Tap-Changing in Regulating Transformers
Inventor: SCHEUBECK EGON
IPC: H01H9/54
Filed: 1968-01-18
Abstract: 1,171,254. Thyristor switching circuits. E. SCHEUBECK. 18 Jan., 1968 [3 March, 19671, No. 2684/68. Heading H3T. [Also in Division H1] In an on-load tap-changing system breaking of the load current on tap-changing is effected in a device H by a main thyristor 13 which is blocked at the appropriate moment by discharge from a capacitor 16 when an auxiliary thyristor 15 is turned on. In changing from tapping A to tapping B changeover switch 5, 6 is moved from contacts 0 to contacts 5a, 6a and contact 3 is opened, the load current then passing through the diode 9, thyristor 13, choke 14, diode 12 and quick-break fuse 18 to the load and on the succeeding half-cycle through 11, 13, 14 and 10. Switch 7 is closed, opening its contact 7a and load current (and inter-tap short-circuit current) flows from tap B so that current transformer 22 causes flipflop 24 to switch off pulse generator 27 (which has been triggering the main transistor 13) and switch-on pulse generator 28 which produces a (single) ignition pulse to turn on auxiliary thyristor 15 so that charged capacitor 16 can discharge through thyristor 13 to block it. Choke 14 prevents 16 from discharging through diodes 10 and 12. If 13 does not block, blowing of fuse 18 stops tap-changing and may actuate a warning device. A resistor 30 may limit the inter-tap current. Capacitor 16 may be charged from transformer 19 or from an auxiliary source. Three other forms of the device H are described. Fig. 2 shows one form in which two main thyristors 31, 32 (for carrying alternate half-waves) are connected in opposition in the A.C. diagonal of a rectifier bridge, a capacitor 40 charged by a voltage source (not shown) discharging through whichever of thyristors 31 or 32 is conducting when auxiliary thyristor 38 is turned on. In another arrangement (Fig. 3, not shown) a pair of main thyristors (41), (42) are connected in reverse parallel through pairs of chokes (48) and each is shunted by a circuit comprising a capacitor (47), a choke (50), an auxiliary transistor (43 or 44) and a diode (45 or 46). In the third arrangement (Fig. 4, not shown), the main thyristors (51), (52) are connected in reverse parallel, each being shunted by a series circuit of an associated auxiliary thyristor (53), (54), a capacitor (55, (56), and a choke (57), (58). In Figs. 3 and 4 arrangements the load current direction is detected using a current transformer (49) to ensure that only the auxiliary thyristor associated with that main thyristor which is conducting current is turned on through the controlling flip-flop.
Patent GB-1285542-A (GB)
Title: Stringed musical instrument
Inventor: DAVIES GORONWY BRADLEY
IPC: G10D3/22
Filed: 1970-01-20
Abstract: 1285542 Stringed musical instruments G B DAVIES 4 Jan 1971 [20 Jan 1970] 2698/70 Heading G5J A stringed musical instrument comprises a hollow sound box formed from two parts spanned internally by a sound post, and an external frame in loop form which carries the stringing and within which the sound box is attached. The sound box 5 may be made from vacuum moulded acrylic plastics parts 5a and 5b bonded with suitable acrylic adhesive. The frame 1 may be of aluminum, die-cast or as bent milled and heat-treated bar. The tailpiece 14 finger board 15 and bridge 11 may be of compression moulded phenolic plastics and the strings may be tuned by steel pegs 13 in nylon bushes to E, A, D, G, one octave below the violin. The instrument is played like a cello with the steel spike 16 resting on the floor.
Patent GB-967843-A (GB)
Title: Improvements in and relating to a method and machine for the continuous production of sheets of thermoplastics material
IPC: B29C35/14
Filed: 1962-01-24
Abstract: 967,843. Gelling continuous thermoplastic sheet. COMPAGNIE DE PONT-A-MOUSSON. Jan. 24, 1962 [Feb. 7, 1961], No. 2700/62. Heading B5A. A layer of thermoplastics material, such as polyvinyl chloride and its copolymers in a powdered state is fed upon an endless steel band 2, driven from roller 4 and tensioned over spring mounted roller 3, into the nip formed with freely rotatable metal or metal surfaced asbestos roller 6, whilst under pressure from spring mounted roller 7, and is gelled by a high-frequency electric current from source C utilizing belt 2 and roller 6 as electrodes. The gelled sheet is subsequently calendered through electric resistance heated rollers 21.
Patent GB-607157-A (GB)
Title: Improvements in plugs for electrical connections of the pin-plug and socket type
IPC: H01R13/502
Filed: 1946-01-28
Abstract: 607,157. Electric couplings. NOVOBAX, Ltd., and SHARMAN, A. V. Jan. 28, 1946, No. 2706. [Class 38 (i)] In a plug of the type comprising an insulating base 1 carrying contact pins 6, 8, the base is provided with a hinged cover 10. The pin 8 is located between extensions 2 of the base which carry hinge pins 12 for the cover 10. The pins 6; 8 are axially slidable, but are held against movement when the cover is closed by bosses 14, 15 on the cover. A bar 4 and screws 5 are provided for clamping the lead-in wires to the plug. An opening 9 is provided so that the connection to the pin 8 can be inspected without opening the cover. A screw 13 is provided in the base for securing the cover in the closed position. Recesses are provided in the base or cover in a manner similar to that described in Specification 577,337 for receiving the lead-in wires and the means for attaching the wires to the pins 6, 8.