baber/WOPTO huggingface dataset:
Patent GB-661743-A (GB)
Title: Improvements in or relating to carrier-current systems
IPC: H04B3/56
Filed: 1949-11-29
Abstract: 661,743. Signalling over power circuits. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. Nov. 29, 1949 [Dec. 17, 1948], No. 30586/49. Class 40 (iv). Carrier current is injected into a power transmission line C, Fig. 1, by a coupling transformer having a toroidal magnetic core 22 embracing one of the condenser type bushings 7, 8 in the metal-clad switch-gear 6 for connecting the line to the associated bus-bar C<SP>1</SP> which is grounded for carrier currents. The carrier current equipment at the remote end of the line is similarly coupled to line. The carrierfrequency transmitter-receiver set 25, Fig. 2, at one end of the line C is coupled through an impedance-matching transformer 27 to a cable 26 having a characteristic impedance of about 50 ohms. This cable is coupled through a further matching transformer 28 and neutralizing condenser C1 to the uniformly spaced primary toroidal winding 23 on the core 22. The carrier frequency is sufficiently high that the transmission line C presents substantially its surge impedance, of the order of 500 ohms, to the carrier currents. Since the impedance of the toroidal transformer is such as to preclude matching the 50 ohm line into the 500 ohm line, maximum carrier current power transfer to the line C is achieved by matching the 50 ohm line into the resistance presented by the toroidal transformer with its secondary connected to a high impedance of 500 ohms, the inductive reactance as viewed from the 50 ohm line being compensated by the capacitor C1. The design of the toroidal transformer to achieve this end is discussed in the Specification. Any means may be used for grounding the line C at each end in respect of carrier currents, e.g. a capacitor or capacitor string, Fig. 4 (not shown), and the same ground may be used for different line sections used for different carrier frequencies. Preferably, the condenser bushing 7 is used for this purpose, the condenser string being provided by the usual concentric foils 15 within the bushing. A tuning coil 37 is connected between the outermost, i.e. low voltage, foil or tap 17 and earth and adjusted so that the parallel connected coil 17 and low voltage portion of the tapped bushing 7 is in series-resonance with the remainder of the bushing 7 and hence reduces the impedance to ground at carrier frequency. Leakage of carrier current energy through the bushing 8 to ground may be substantially eliminated by arranging a further tuning coil 38 across the low voltage tap of the bushing 8 and ground and tuned into parallel resonance with the low voltage portion of the tapped bushing 8 for the carrier frequency or range used. A drain coil 40 connected across the transformer winding 23 nullifies the effect on the carrier current set 25 of the power line current. The toroidal transformer may also be used for relaying or metering purposes at the power line frequency.
Patent GB-505212-A (GB)
Title: Improvements relating to mounts for hypodermic needles
IPC: A61M5/34
Filed: 1937-11-08
Abstract: 505,212. Pipe joints. EVERETT, S. J. Nov. 8, 1937, Nos. 30605/37 and 8754/38. [Class 99 (i)] [Also in Group VI] The invention relates to liquid-tight mountings for hypodermic syringes or like small surgical in. struments wherein substantially complementary conical mounting parts are interfitted by pushing one into the other, and is characterized in that one or each of the substantially conical parts is provided over at least a portion of its length with a series of groove formations which do not project above its conical surface and which extend around at least a portion of its circumference, the said formations being such that there is no continuous groove extending along the whole of such length of the part as is interfitted with the other part., The groove formations may comprise a thread extending around only a portion of the circumference or along only a part of the length of the surface. The thread may be eccentrically cut as shown in Fig. 1. Alternatively, the formations may comprise grooves or steps as shown in Fig. 5. The surface may be slightly barrel-shaped. The formations may be applied to an adaptor, screwed on to the nozzle of a syringe and having a needle designed to pierce ampoule. Parts with different groove formations are slightly deformed by pressing the two parts together with a slight rotary motion, giving a liquid-tight and film fit. The mountings may be made of brass, artificial resin, or pewter.
Patent GB-722978-A (GB)
Title: Improvements in wind-power plant with a centrifugal governor
Inventor: HUTTER ULRICH
IPC: F03D7/02
Filed: 1952-12-03
Abstract: 722,978. Wind-motors. ALLGAIER WERKZEUGBAU GES. Dec. 3, 1952, No. 30631/52. Class 110 (3). A wind-power plant comprises an electric generator n driven by a vane wheel through suitable speed-raising transmission gearing f, g, h, i, k interposed therebetween and a centrifugal speed-governor o, p which is driven at a speed of revolution equal to that of the generator and has its fly-weights housed in a casing, e for the said gearing. The governor is mounted on the shaft k and acts, against the influence of a spring s, on a rotating nut q. The nut q is mounted to rotate on a control rod r having guide ribs t to which are attached rods u for altering the angle of the vane blades c. The motor may be stopped by hand through a rope x and a crank-lever w acting on the nut q. The casing e is at least partly filled with oil.
Patent GB-1501967-A (GB)
Title: Carbon black
IPC: C09C1/50
Filed: 1975-07-22
Abstract: 1501967 Carbon black CONTINENTAL CARBON CO 22 July 1975 [23 July 1974 9 July 1975] 30681/75 Heading C1A The invention comprises an oil furnace carbon black having iodine numbers (I 2 ) (as measured by ASTM test method D-1510-70) of from 60 to 150 and having the following relationships between iodine numbers, tint (as measured by ASTM test method D-3265-73), and persistent structure 24M4 (as measured by ASTM test method D-2414 (tentative)): and A graph of 24M4 and tint v. iodine number gives the ranges of 24M4 and tint (see Fig.3). The carbon blacks of high 24M4 and high tint have a high treadwear resistance. The feedstock may be any carbon black oil of commercial quality. A suitable furnace for use in the production of the present carbon blacks is described in U.S.A. Specifications 3,256,066 and 3,741,165.
Patent GB-284431-A (GB)
Title: Improvements in or relating to seating for railway vehicles and other public conveyances
IPC: B61D33/00
Filed: 1926-12-03
Abstract: 284,431. Johnson, E. E., and Nesta, Ltd. Dec. 3, 1926. Seating - cushions, securing in position. -The rear edge of a seat cushion 2 engages beneath a projection 6 on a back cushion 1 and is held against forward movement by permanent or detachable fastenings 4 or by a ledge at the front of the seat. Limp cushions may be reinforced by transverse bars 7, and when arm rests are used these are detachably fitted and pass through holes in the seat cushions. According to the Provisional Specification the rear edge of the seat cushion and lower edge of the back cushion may be hingedly connected by sewing together extensions of the covering material or by means of a strip of fabric.
Patent GB-838688-A (GB)
Title: Improvements in means for clamping rolled bars, rods, tubes or sections for sawing into lengths
IPC: B23Q3/06
Filed: 1958-09-26
Abstract: 838,688. Sawing. SCHLOEMANN A. G. Sept. 26, 1958 [Oct. 25, 1957], No. 30789/58. Class 145. Rolled bars or sections are sawn into sections by a transverselymoved circular saw 1 while held against an abutment 8 or 9 on a roller table 7 by limbs 15 extending from above or below the table and mounted on arms 14 connected to a hydraulic or pneumatic cylinder 27. The arms are pivoted at 21 on a member 19 and are locked in raised or lowered positions by a rod passing through holes 23a or 23b. The limbs 15 may be pivoted at 16 on the arms so as to swing out of the way of bars that may run against them or may be rigidly connected to the arms and interconnected by a guide rail pointed at its forward end to guide incoming bars to one side or the other of the limbs. The saw carriage 4 is movable across the roller table on a bed 4a which can travel on foundation bars 5 in the longitudinal direction of the roller bed.
Patent GB-341088-A (GB)
Title: Improvements in or relating to shutters for radiators of internal combustion engines
IPC: F01P7/10
Filed: 1929-10-10
Abstract: 341,088. Radiators for motor cars. GUINNESS, K. E. L., The White House, Coombe Warren, Kingston Hill, Surrey. Oct. 10, 1929, No. 30805. [Class 29.] Shutters 1 controlling the flow of air through the radiator are operated by the oil pressure of the engine, the outlet valve 16 of an oil-pressure cylinder 13 being controlled by a thermostat 18 subject to the temperature of the circulating water. The shutters are pivoted to a fixed rod 2 and connected by a rod 3 and link 5 to a pivoted rod 4, which is adapted to be raised against the pull of a spring 19 by the piston 11 of the oil cylinder. Oil under pressure enters the cylinder by an inlet 14 and passes to the oil sump through the valve 16 while the thermostat is cold. When the thermostat warms up the valve 16 closes and the shutters are opened. A small leak hole 21 is provided at the bottom and another leak 20 at the top of the cylinder.
Patent GB-306573-A (GB)
Title: Improvements in and relating to dyes and dyeing
IPC: C09B9/02
Filed: 1927-11-17
Abstract: 306,573. Barnes, R. S., Harris, J. E. G,., Thomas, J., and Scottish Dyes, Ltd. Nov. 17, 1927, Anthraquinoneacridones; leuco compounds of vat dyes, esters of.- Anthraquinone carboxylic acids containing an arylamino substituent in the o-position to the carboxylic group are treated with a tertiary base-sulphuric anhydride compound in the presence of a metal, e.g. copper, and an excess of a tertiary base. The products, which are possibly esters of anthrahydroquinone carboxylic acids containing an o-arylamino substituent., are converted into anthraquinoneacridones by working up with alkali and treating with acid oxidizing agents. In examples, (1) 1- #-naphthylamino-anthraquinone-2-carboxylic acid is treated with pyridine and pyridine sulphur trioxide in the presence of copper, the melt is added to water containing caustic soda, steam distilled to remove the pyridine and filtered; the product may be isolated in solid form from the filtrate, or the latter may be used directly for dyeing and printing; thus, cotton yarn may be dyed therewith with the addition of salt and developed in a dilute solution of acid ferric chloride, whereby a pink shade, apparently identical with that from the 1 : 2-naphthacridone, is obtained; (2) methylchlorsulphonate or oleum and pyridine are employed instead of pyridine sulphuric anhydride in example (1), and the liquor obtained after treating with caustic soda and distilling off the pyridine is run into a solution containing ferric. chloride and hydrochloric acid; the anthraquinone naphthacridone is precipitated and filtered off: (3) 1-anilidoanthraquinone-2-carboxylic acid is treated with pyridine sulphur trioxide. or methylchlorsulphonate, pyridine and copper; the product obtained may be treated with an acid oxidizing agent for the production of the acridone in substance or on the fibre; (4) 1-p-chloranilidoanthraquinone-2-carboxylic acid is similarly treated. Specifications 247,787 and 251,491 are referred to.
Patent GB-1274686-A (GB)
Title: Sequential scanning of elements
Inventor: METZGER LENARD M
IPC: H04N5/335
Filed: 1969-06-19
Abstract: 1,274,686. Television. EASTMAN KODAK CO. 19 June, 1969 [24 June, 1968], No. 31027/69. Heading H4F. In a substantially regular rectangular array 1 of radiation sensitive or radiation emissive elements, divided into two approximately equal sets of adjacent columns, in which first terminals of every element in any column are connected in common to the appropriate element of an electronic horizontal ring counter, the second terminals of every element in any row of one set of columns are connected in common with second terminals of every element in an adjacent different row of the other set of columns and to the appropriate element of a vertical electric ring counter. Thus in the television camera of Fig. 1, using photoconductive elements, horizontal clock pulses supplied to the horizontal counter cause regular scanning across the array, while pulses produced from the counter on transfer from one set of columns to the other, and at the end of a scan, actuate the vertical counter so that an interlaced scan is produced i.e. during one raster only lines 1B and 2B, 3B and 4B &c. are scanned and alternate lines are scanned in the following raster. Extra elements H465-H552 and V482-V525 provice for horizontal and vertical flyback time, during which an E1A sync. waveform may be obtained by connecting logic elements to various elements of the counters, Figs. 3 and 4 (not shown). In a second embodiment, Fig. 2 (not shown), using half the total number of elements required in Fig. 1, each row of elements, in each set of columns is connected via an "OR" gate to a different adjacent pair of vertical counter elements so that different adjacent rows have one counter element in common, i.e. 2B to V1 and V2; 2A to V2 and V3; 3A to V3 and V4, and all the elements (apart from the first or last half row) are scanned sequentially each raster, to give a pseudo-interlaced scan. The apparatus may be such as to provide an output signal made compatible with a standard colour NTSC display. The array itself may also be used for a television display using light emissive elements.
Patent GB-160507-A (GB)
Title: Improvements in carburetting-apparatus for gas burners
IPC: C10J1/10
Filed: 1919-12-12
Abstract: 160,507. Taylor, C. Dec. 12, 1919. Carburetting. - Carburetting-apparatus for enriching coal gas comprises a container integral with or fitted to a gas bracket or pendant and packed with absorbent material soaked in benzol &c. The Figure shows an attachment for upright burners, either fish-tail or incandescent. At the bottom end of the cylindrical casing b a U-shaped pipe e is screwed to the nipple f attached to the gas-pipe. The carburetted gas leaves through an outlet f<1> at the top of the container b. The container filled with fibrous material is charged with spirit through the spout b<1> having a gas-tight cap i. The burner may be attached to the coned end c as shown or at the other end of a swivelling arm or the like. For inverted burners, the U-tube is dispensed with and the inlet and outlet tubes extend nearly to the bottom and top respectively of the container. The container may be in the form of a globular member at the branch arms of a gas pendant and so servefor several burners.
Patent GB-1359487-A (GB)
Title: Brake antilock mechanism
IPC: B60T8/42
Filed: 1971-09-24
Abstract: 1359487 Anti-skid braking systems MULLARD Ltd 24 Sept 1971 [26 June 1970] 31131/70 Heading F2F In an anti-skid system in which each wheel is equipped with an electric tacho-generator 12 which opens an electromagnetic valve 4, 5 when wheel deceleration is excessive, the braking pressure to cylinder 3 is restored by a pump 7 driven directly from the road wheel through a cam 19 and acting through valves 8, 9 to return fluid from reservoir 10, 11 to the cylinder.
Patent GB-618107-A (GB)
Title: Control of aircraft
IPC: B64C3/54
Filed: 1946-10-21
Abstract: 618,107. Controlling aircraft. ARMSTRONG WHITWORTH AIRCRAFT, Ltd., Sir W. G., and LLOYD, J. Oct. 21, 1946, No. 31180. [Class 4] [Also in Group XXXII] In an aileron control system of the type which permits non-differential movement of the ailerons in response to sudden changes of incidence, the system includes a planetary gearing comprising two coaxial shafts which are journalled and drivingly connected to the ailerons, and a planet gear meshing with gears on the shafts and rotatable in the planet carrier when the ailerons move non-differentially, the planet carrier being connected to the main control to be revolved about the axis of the shafts, the planet gear not turning, when the main control is operated to move the ailerons in the normal differential manner. In the arrangement shown in Fig. 1, the control system for the ailerons 23, 24 includes a bevel differential, the casing 21 of which is rotated about a transverse axis X-X by a member 12 for normal differential action of the ailerons. Non-differential movements of the surfaces due to gusts cause rotation of the planet wheel 28 and an attached arm 33 under the restraint of hydraulic dampers 35. Each damper (see Group XXXII) comprises a spring-loaded piston moving in a cylinder whose ends are connected by a pipe and non-return valve provided with a bleed orifice to allow relatively free displacement of the ailerons from their neutral position, while restricting their return movement. The ailerons may be locked against non-differential movement, if desired, by closing a valve in the pipe connecting the ends of the cylinders. Hydraulic stops 49 limit the movements of the ailerons. To minimise the tendency of the ailerons to be moved non-differentially when the aircraft is put into a climb or dive by adjustment of the elevators, the damper springs are so rated that at cruising speed with mean aircraft weight they bias the ailerons to the zero position of adjustment in the manner of trim tabs. In the modification shown in Fig. 6 the non-differential movements of the ailerons take place under the control of a hydraulic damper 35a comprising a balanced spring-loaded piston moving in a cylinder 67 (see Group XXXII). A bob-weight 57 operates the planet gearing to apply relieving movements to the ailerons in bumpy conditions. Control mechanism for a trim tab 58 comprises a hand-wheel 64 operating a screw jack 63 through cables 65, the jack operating a linkage 59, 60, 61, 62, 66. The ailerons are preferably of the pressure balanced type, as described in Specification 568,910.
Patent GB-578295-A (GB)
Title: Improvements in proof chambers for the testing of gun barrels and the like
IPC: F41J13/00
Filed: 1939-11-30
Abstract: 578,295. Testing chambers for gun barrels. PLESSEY CO., Ltd., and COSTA, H. Da. Nov. 30, 1939, No. 31184. [Class 20 (i)] [Also in Group XXI] A testing chamber for gun barrels comprises a feeding and firing arrangement mounted in a casing at one end of a range tube and a bulletcatcher disposed at the other end of the tube. The tube 13 is carried by supports 14 and at one end opens tangentially into an upright cylinder 10 provided with an internal helical guide 17 for receiving the bullets and deflecting them towards the lower portion of the cylinder, a flue 21 with a venturi tube or a fan being provided at its upper end to exhaust noxious fumes. The feeding and firing arrangement 25 is mounted on a vertical slide panel 24 in guides 23 mounted by means of recoil spring rods 30 on a plate 22 which is secured to the end of the tube 13 opposite the bullet-catcher. A damper 33 and springs 39 control the return movement of the panel following the recoil. The feeding and firing arrangement is enclosed in a container 31 from which a gas-discharge tube 38 leads to the flue 21. Specification 562,807, [Group XXI], is referred to.
Patent GB-1180438-A (GB)
Title: Process and Reproduction Material for Duplicating Silver Films
IPC: G03F1/56
Filed: 1967-07-06
Abstract: 1,180,438. Photo-sensitive materials. KALLE A.G. July 6, 1967 [July 8, 1966], No.31195/67. Heading G2C. A light-sensitive material comprises a transparent polymeric support coated with an o-naphthoquinone diazide and at least two alkali-fast dyes which are opaque to ultraviolet light and soluble or dispersible in organic solvents so that the layer has a photographic density above 1. The material is exposed to an original bearing a silver image and developed with alkali to remove the exposed areas and produce a positive image which may be used as masters in photo-mechanical processes. In the examples a polyester support is coated with a layer containing one or two o-naphthoquinone diazides, two or three alkali-fast dyes and optionally polyvinyl acetate is exposed to a silver image original and developed with alkali metal silicates, phosphates or carbonates and/or ethanolamines, alkylenediamines to produce a positive image. Reference has been directed by the Comptroller to Specification 1,052,699.
Patent GB-1220545-A (GB)
Title: Tape transport apparatus
IPC: G11B15/295
Filed: 1969-06-20
Abstract: 1,220,545. Feeding record tapes. NEWELL INDUSTRIES Inc. 20 June, 1969 [26 June, 1968], No. 31216/69. Heading G5R. Tape is fed between a rotatable driven body and a rotating driving body comprising an inner driving element carrying an outer resilient body which is softer than the driven body and has physical properties such that the application of a particular compressive force between the driving and driven bodies causes the speed of the tape between them to be less than the geometric peripheral velocity of the driving body. A larger compressive force causes the tape speed to be greater than the geometric peripheral velocity of the driving body which is, as shown, a capstan 13 having a resilient tyre 15 and transporting tape between two rolls 11, 12, the particular compressive force being applied between the capstan and the supply roll and the larger compressive force between the capstan and the take-up roll.
Patent GB-1480057-A (GB)
Title: Bodies with wear zones
IPC: B23K31/02
Filed: 1974-07-15
Abstract: 1480057 Stirrers, jaw crushers; impact pulverizers VERSCHLEISS-TECHNIK DR ING HANS WAHL 15 July 1974 [13 July 1973 20 Oct 1973 27 Oct 1973] 31226/74 Headings B1C and B2A [Also in Divisions Al, B3 and F2] A process for forming a metallic body e.g. for a concrete mixer or mixer jaw crusher jaw, or a swing hammer with a wear zone comprises securing cutting lamellae, 3, 4, 5, 6, to a base metal 1 to define the zone, the lamellae having blunt or broken cutting edges and each comprising an area in the zone when viewed on the face of the zone in the range 0.1 to 10 cms<SP>2</SP>, the lamellae being of material formed from metallic carbides, nitrides, borides and/ or silicides. The body may be in the form of a plate of cast-iron and a recess 2 is moulded or machined in the plate after it is cast. The lamellae, such as blunt or broken cutting blades, are secured in the recess by soldering or adhesive so as to form the wear zone Alternatively, the lamellae may be embedded or integrally cast in the metallic body. The lamellae may abut one another or be spaced and may have heat expansion joints therebetween.  The body may be part of an article such as a flat plate, flat or arched lining, concrete mixer, tine, crushing jaw, brake block or drum, drilling template, wire guide, nozzle, chain, bucket teeth, swing hammer, gyrating chamber, chain guide or sprocket, grinder, conveyor, agricultural tool, mixer, slag rake, snow plough, scraper, washer, pulley etc.
Patent GB-312335-A (GB)
Abstract: 312,335. Siemens & Halske Akt.- Ges. May 26, 1928, [Convention date]. Addition to 284,664. Cable circuits modified to improve transmission. -A loaded long-distance cable as described in the parent Specification having star-cabled quads and quads cabled in the Dieselhorst-Martin system is additionally or alternatively provide with speech circuits in double quad cabling in which four pairs 1 - - 4 are placed round a common axis. The physical and phantom circuits of the double quad pairs may be loaded to have the same specific attenuation or the same cut off frequency. Specification 305,822 is referred to.