baber/WOPTO huggingface dataset:
Patent GB-872567-A (GB)
Title: Improvements in or relating to a process for the preparation of substituted sulphonyl ureas
Filed: 1957-06-28
Abstract: Sulphonyl ureas of the formula <FORM:0872567/IV (b)/1> wherein A is an amino group or a group convertible thereto by hydrolysis or reduction, e.g. acylamino, nitro, azo or benzylamino, or a methyl group, and R1 is a hydrocarbon residue, e.g. butyl or isobutyl, are made by reacting a benzenesulphonamide of the formula p-A.C6H4.SO2.NH2 or an inorganic or organic salt thereof, such as a sodium, potassium or ammonium salt, with a thiocarbamate R1.NH.CO.S.R, wherein R is a hydrocarbon residue, e.g. methyl, ethyl or benzyl.  The reaction is preferably carried out in a solvent such as phenol, dioxan or ethylene glycol methyl or ethyl ether, preferably in the presence of an acid binding agent or using the alkali-metal salt of the sulphonamide.  Thiocarbamates used as starting materials sucsh as methyl and benzyl N-butylthiocarbamate and methyl and phenyl N-isobutylthiocarbamate are made by reacting an amine R1NH2 with a thiocarbonyl chloride RS.CO.Cl, or a mercaptan RSH with an isocyanate R1NCO.  Reference has been directed by the Comptroller to Specifications 792,776 and 808,071.
Patent GB-505329-A (GB)
Title: Improvements in or relating to sheep or like clippers or cutters
IPC: B26B19/24
Filed: 1938-07-12
Abstract: 505,329. Sheep and like clippers. AKTIEBOLAGET SEPARATOR. July 12, 1938, Nos. 20628 and 20629. Convention dates, Aug. 6, 1937 and Oct. 2, 1937. [Class 131] In a sheep and like clipper the cutter 2 is oscillated by a lever 3 pivoted at 8 and engaged by a ball part 4 which is reciprocated by a, compressed-air motor, the exhaust air being discharged through apertures 23 to, prevent wool entering the mechanism. The compressed air is supplied through a flexible tube 18 to a reciprocating tube 5 connecting two pistons 6, 7, the air being alternately admitted to the cylinders 19, 20 by valves 11, 12 on a spindle 10, which also carries valves 13, 14 controlling the discharge from the cylinders, reversal being effected when the spindle contacts with the cylinder end walls. A sliding connection may be provided between the hose 18 and the reciprocating tube 5. Fig. 5 shows a tubular throttle valve 32 in the handle of the machine having apertures 34, the valve being slid axially by a pin-and-slot device 38 when'a sleeve 39 is turned by hand. The air conduit 31 may be connected to the reciprocating tube 5, Fig. 6, by a rigid tube 44 having its ends surrounded by rubber rings 46, 48 forming pivotal joints.
Patent GB-685298-A (GB)
Title: Improvements in frequency controlled oscillation generator systems
IPC: H03L7/04
Filed: 1949-08-09
Abstract: 685,298. Thermionic valves; electron multipliers; electron beam valves. RADIO CORPORATION OF AMERICA. Aug. 9, 1949 [Aug. 31, 1948], No. 20722/49. Addition to 662,505, [Group XXXV], Class 39(i) [Also in Group XXXV] In order to control the frequency of oscillation of a valve oscillator, variations caused by deflecting the electrons travelling from an emission electrode toward a collecting electrode are utilized. The apparatus comprises a frequency controlled oscillation generator as claimed in the parent Specification which is provided with at least one additional electrode in the valve whereby losses due to lengthy or changing transit time are compensated for or balanced. For this purpose orbital beam valves may be employed, (Fig. 3a) having cathode K, control grid CG, accelerating grid G2, shielding grid G3, focusing electrode IFE, anode P and reflector electrode R. Grids G2 and G3 provide a field-free space so as to avoid effects due to interaction of the electrons with a second grid such as occurs if conventional pentodes are employed in the circuit. In the embodiment of Fig. 4a the right hand side of the valve has a normal close anode A2 while the left hand side operates as in Fig. 3a. Interaction of electron with a second grid may also be overcome by employing a valve with a secondary emission electrode D (Fig. 5a). The electrode D is inclined at an angle to the reflector R, B being a beam focusing electrode. The frequency may be controlled by varying the number of electrons reaching the anode instead of their transit time. This may be effected by the valve shown in Fig. 6a, which comprises a conventional triode oscillator K, CG, A 2 , the anode A 2  having a beam forming aperture 30. This beam is deflected by an A.F.C. voltage on the deflecting electrode R, so that a controllable amount is intercepted by a knife edge electrode KE.
Patent GB-336210-A (GB)
Title: Improvements in machines for winding strip material into coils
IPC: H01G13/02
Filed: 1929-07-06
Abstract: 336,210. British Thomson-Houston Co., Ltd., (General Electric Co.). July 6, 1929. Winding webs.-In apparatus for winding strip material into coils and particularly for winding electrical condensers of the foil and paper type, a number of strips passing from spools or other sources of supply are led to a winding mandrel through a common tensioning and smoothing device. A number of supply spools 13 are mounted on one side of a frame plate 4 carried by a base 1, and the strips therefrom pass to. a winding mandrel 37 between a pair of tensioning and smoothing rollers 94, 95, one or both of which mav be provided with a felt, rubber, or other resilient covering. The rollers 94, 95 are carried by arms 80, 81 secured to shafts 82, 83 which are geared together so that the arms can be, moved simultaneously, to the position shown in broken lines to facilitate threading of the strips. The mandrel is driven by an electric motor 66 through a worm 67 and worm-wheel 63 and a pin on the side of the worm-wheel actuates the arm 75 of a counting device 74. The mandrel may also be manually rotated by a hand-wheel 68 on the shaft 65 carrying the worm 67. The mandrel comprises two plates 37, Fig. 3, mounted on pivots 40 in a slotted head 34 fixed to the driven shaft 26, and the plates are held in the full line position by pins 43 engaging slots 42 in the plates, the pins 43 being carried by a member 44 rotatably mounted in an arm 46 which is movable on a stub shaft 49 to release or clamp the plates 37. When released, the plates can turn slightly about their pivots 40 to facilitate the removal of the coil. A mandrel for winding cylindrical coils comprises a hollow cylinder 110, Fig. 6, having a groove 114 to receive a rod 115 to clamp the ends of the strips.
Patent GB-575289-A (GB)
Title: Improvements in the manufacture of propeller blades
IPC: B21D53/78
Filed: 1943-12-11
Abstract: 575,289. Making propellers. DUNCAN, W. O. (Engineering & Research Corporation). Dec. 11, 1943, No. 20775. [Class 83 (ii)] A propeller blade is made by attaching a shaped plate 10 or plates 10, 12 to a shaped tube 2 to produce a complete airfoil shape and then removing surplus metal at the joint to leave the exterior surface flush. The joint may be soldered, brazed or welded. Closure plates 20 for the ends of the faring plates 10, 12 may be used.
Patent GB-1215238-A (GB)
Title: Separating phthalonitriles from reaction gases containing the same
IPC: C07C255/51
Filed: 1968-05-02
Abstract: 1,215,238. Phthalonitriles. BADISCHE ANILIN- & SODA-FABRIK A.G. 2 May, 1968 [6 May, 1967], No. 20863/68. Heading C2C. The invention comprises a process for separating one or more phthalonitriles while at the same time removing by-products from a reaction gas which contains one or more phthalonitriles, which is at 180-480‹ C., and which has been obtained in the synthesis of phthalonitriles, by quenching the hot reaction gas with a coolant boiling above 40‹ C., wherein the coolant is supplied at 40-200‹ C. but below the temperature of the reaction gas to be quenched and the ratio of coolant to the amount of gas to be quenched is adjusted so that a temperature below the boiling point of the coolant is maintained by evaporation of a portion of the coolant. Suitable coolants are water, xylene, kerosene, nitrobenzene, trichlorobenzene, tolunitrile and benzonitrils.
Patent GB-1376549-A (GB)
Title: Animal feedstuff based upon urea
IPC: A23K50/15
Filed: 1973-05-02
Abstract: 1376549 NPN feed PIERREFITTE-AUBY and COMPAGNIE FRANCAISE DE L'AZOTE 2 May 1973 [3 May 1972] 20868/73 Heading A2B An animal feedstuff comprising urea, a material comprising starch and a cellulosic product, the urea dissolving from the mixture relatively slowly in an aqueous medium, is prepared by subjecting an intimate mixture of small particles of urea and the other components to pressure in the absence of added water, and preferably without external heat, for example in a granulating press. The starchy material may be a cereal flour or a maize product, and the cellulosic product may be for example algae or alfalfa meal, oil bean cake, or sunflower husks. Granulation may be facilitated by additives such as refatted maize or tallow powder.
Patent GB-1469771-A (GB)
Title: Support means
IPC: B23Q1/36
Filed: 1973-05-02
Abstract: 1469771 Toothed gearing ENGLISH ELECTRIC CO Ltd 2 May 1974 [2 May 1973] 20893/73 Heading F2Q A support means, particularly applicable to a marine transmission arrangement, comprises a base-plate I and a mounting plate 3 which are interconnected by diverging plate members 4 which permit small pivotal movements of a member secured to mounting plate 3 relative to base-plate 1. The plate members 4 preferably are welded to the plates 1, 3, but some plates 4 could be located in slots therein. The plate 3 includes a boss 6, and all the plates 4 lie in planes which pass through a pivotal axis 5. The base-plate 1 has extension pieces 7 welded to intermediate triangular inserts 8.
Patent GB-1200517-A (GB)
Title: Improvements in or relating to sensing apparatus
IPC: G01P3/34
Filed: 1968-05-03
Abstract: 1,200,517. 517. Pure fluid amplifiers. HONEYWELL Inc. May 3, 1966 [May 4,1967J, No.21013/68. Heading G3H. [Also in Divisions G1 and G4] A sensing apparatus, e.g. a speed sensor, comprises a fluidic amplifier having two surfaces between which fluid-flows, at least a part of one being planar and being formed by a surface of a movable member 14, there being means for driving the member 14 e.g. a shaft 15, to cause it to move in its own plane, e.g. by rotating, the arrangement being such that movement of the member tends to divert fluid-flow within the amplifier in a manner dependent on the movement of the member. When the member 14 is stationary, fluid-flow through control passages 18 and 19 is equal, and fluid from a power jet 21 is split equally between outlet legs 23 and 24, but upon rotation of the member e.g. anti-clockwise, flow through the passage 18 is assisted but flow through 19 is impeded, consequently a differential pressure arises at outlets 23 and 24 indicative of the speed of rotation of the shaft 15. The amplifier can be of a proportional or bi-stable type. The member 14 can oscillate, and be of rectangular shape.
Patent GB-1268315-A (GB)
Title: Machine with reduced noise level for the production of strands or cables from wires or strands
IPC: D07B3/04
Filed: 1970-05-01
Abstract: 1,268,315. Tubular stranding machines. BARMAG BARMER MASCHINENFABRIK A.G. 1 May, 1970 [3 May, 1969], No. 21036/ 70. Heading D1T. A stranding machine of the kind in which delivery spools 4, 5 are mounted within an elongated tube 1, and in which one or more window zones 2, 3 are provided in the tube for the insertion and removal of the spools 4, 5, is characterized in that axially displaceable sleeves 10, 11 surround the tube and can be slid to settings in which they close the windows of the tube. Means (not disclosed) are provided to lock each sleeve over its corresponding window zone. Safety switches may be so positioned that when the sleeves are moved away from their respective window zones, the sleeves open the safety switches to prevent the drive to the tube 1 from being energized.
Patent GB-403167-A (GB)
Title: Improvements in seats for water-or dry-closets
IPC: A47K13/00
Filed: 1932-07-27
Abstract: 403,167. Closet seats. KUMMER, 0., 15, Troglitzerstrasse, Zeitz, near Leipsic, Germany. July 27, 1932, No. 21162. [Class 26.] A closet seat comprises at least two bent strips of wood fitted radially to each other and extending continuously throughout the sides and front arch, the separate strips being joined along their contacting surfaces, which are lengthwise of the grain, by means of a cement which is insoluble in water. In one form, Fig. 1, strips 1, 2 are bent to U-shape and secured together by an intermediate member 3 which is connected to the strips by means of an insoluble cement and a pin 4. In another form, Fig. 2, the ends of the strip 2 are shaped as at 5 and 6, bolts 7, 8 which may have barbs or "shed" screw threads being provided. Further bolts 11 may also be inserted across the grain. In a further form, Fig. 3, both strips are shaped at their ends so that a closed ring may be formed, a bolt 12 being provided.
Patent GB-921131-A (GB)
Title: Improvements in or relating to profile rolling machines
IPC: B21H9/02
Filed: 1961-06-13
Abstract: 921,131. Profile rolling. J. PLAGEMANN, [trading as PEE-WEE MASCHINENUND APPARATEBAU, WERNER PLAGEMANN]. June 13, 1961 [July 27, 1960], No. 21349/61. Class 83 (4). In a profile rolling machine suitable for rolling heads for bolts, grooves, or threads on heated blanks, a chuck and workpiece at a constant speed but mechanism co-operating with the drive of the chuck allows rotation of the workpiece by the work rolls at a different speed. As shown in Fig. 1, a blank is held in a chuck 19 which is driven by a belt 39 through an overrunning clutch, thus allowing the blank during rolling to be rotated by rolls 1 and 2 at a higher speed than the chuck. The rolls are driven from a pulley 10 through gearing 9 and roll 2 is adjustable along guides 12. A pivoted delivery block 15 supports a blank from a shoot 13 while the chuck 19 grips the blank, and after rolling a spring loaded pin 20 ejects the blank, these functions being governed by electric switching of pneumatic cylinders.
Patent GB-473179-A (GB)
Title: Improvements in control systems for electric motors
IPC: B60L9/04
Filed: 1936-04-03
Abstract: 473,179. Control of D.C. motors. ENGLISH ELECTRIC CO., Ltd., and RAWORTH, A. April 3, 1936, No. 21378/37. Divided out of 473,137. Drawings to Specification. [Class 38 (iii)] In an electric locomotive or vehicle in which the traction equipment includes two or more D.C. traction motors or groups of motors in separate circuits, and a variable voltage D.C. generator in each of the circuits for varying the voltage applied to the motors, a single variable resistance common to the field windings of two or more of the generators is provided for determining the magnitude of the current through said windings. The invention is described as applied to the equipment described in Specification 473,137. The field windings of the traction motors may be tapped and provided with switches as described in Specification 473,180.
Patent GB-318353-A (GB)
Title: Improvements in agricultural implements for aerating grass-lands
IPC: A01B45/02
Filed: 1928-07-24
Abstract: 318,353. Ogle, J., H. July 24, 1928. Disc-tool and rotary-tool implements; rollers, land; adjusting parts.-An implement for aerating grass land comprises a series of wheels B of uniform diameter, rotatable about a common axis, so as to constitute a sectional roller, and a series of turf cutting or perforating discs or members C of larger diameter arranged alternately with the wheels and rotatable about a common axis which is eccentric to that of the roller. The wheels B and discs C are arranged alternately on a shaft A carried in bearing brackets D on a framing consisting of transverse members E and draught shafts F. The shaft A is square, polygonal, or splined and is normally prevented from rotating. The wheels B are rotatably mounted on sleeves G and the discs C on eccentric collars H, the sleeves and collars being threaded on the shaft A. The eccentric collars H are adjustable angularly to vary the depth of cut of the discs C by partially rota'ting the shaft A and locking it by means of a lever engaging with a locking segment K. By turning the shaft A through 180‹ the lower parts of the discs C may be withdrawn within the roller and their upper parts projected outside it, for transporting or rolling purposes. The wheels B may have plain, ribbed, o'-' roughened surfaces. The discs C may have plain or interrupted cutting edges, or may be replaced by members having radial spikes.
Patent GB-761615-A (GB)
Title: Improvements in or relating to lysergic acid derivatives
Filed: 1954-07-22
Abstract: Dihydro-norlysergic acid is prepared by reducing with sodium in ethanol containing about 0.5 per cent of water, the indolo-quinoline of the formula <FORM:0761615/IV(b)/1> (see Specification 759,105). The product may be purified by esterifying it with methanol and hydrogen chloride, isolating the ester by chromatography on alumina and reconverting to the free acid.  An example is given of the process.  Specifications 676,281 and 710,323 also are referred to.
Patent GB-315871-A (GB)
Title: Shade-holder for electric lamps
IPC: F21V17/00
Filed: 1929-07-12
Abstract: 315,871. Olsen, S. K., (trading as Poulsen & Co., L.). July 21, 1928, [Convention date]. Shades; shade-holders.-In a multiple shade fitting for electric lamps in which one or more springs are attached at one end to the fitting and alternately engage the inside of one shade and the outside of an adjacent shade, the shade which is most liable to fall down is held intermediate the ends of the springs and the shade which is least likely to fall down is held by the outermost ends of the springs. One or more of the springs may have their outermost ends also attached to the fitting. In the form shown in the Figure, the spring 2 is provided with an angular point 4 for engaging the outside of the bottom shade 5, whilst the branch 3 is provided with a bent portion for engaging the inside of the middle shade 6 and with an extension 8 for engaging the outside of the inwardly bent flange of the top shade 7.
Patent GB-316933-A (GB)
Title: Improvements in pneumatic percussive tools
IPC: B25D17/08
Filed: 1929-07-12
Abstract: 316,933. Krupp Akt.-Ges., F. Aug. 6, 1928, [Convention date] No Patent granted (Sealing fee not paid). Percussive tools.-The drill is prevented from dropping out by a notched bar E which is pivoted on a bolt B parallel to the axis of the tool and is pressed into position by a spring F which also keeps it up to the bolt head b<1>.
Patent GB-404383-A (GB)
Title: Improvements in and relating to acoustic sounding apparatus
IPC: G10K5/00
Filed: 1932-07-29
Abstract: 404,383. Electrically-operated valves. FLORISSON, C. L., 11, Rue de Cornstadt, Courbevoie, Becon-les-Bruyeres, Seine, and SOC. DE CONDENSATION ET D'APPLICATIONS MECANIQUES, 42, Rue de Clichy, Paris, both in France. July 29, 1932, No. 21478. Convention date, July 30, 1931. [Class 135.] A piston valve 32, used in echo-sounding apparatus having an emitter 17 utilizing compressed gas, normally closes an annular port 34. A solenoid core 39 is attached to a rod 40 having a slotted end 43 in which slides a pin 42 secured to a rod 37 connected to the piston 32. When the solenoid is energized it moves the piston a distance a to uncover the port 34 leading from the supply chamber 29, whereupon the gas pressure forces the piston back a further distance b, the pin 42 sliding in the slot 43. A spring 44, which may be adjustable to vary the length of the emission, closes the valve after operation.
Patent GB-1150288-A (GB)
Title: Semiconductor Controlled Rectifier.
IPC: H01L29/08
Filed: 1966-05-13
Abstract: 1,150,288. Semi-conductor devices. LICENTIA PATENT - VERWALTUNGS - G.m.b.H. 13 May, 1966 [14 May, 1965], No. 21482/66. Heading H1K. The switching-on speed of an SCR is increased by providing an auxiliary control electrode connected to the end of the load resistance remote from the main electrode by an impedance. When the SCR is triggered the voltage drop across the load resistor initiates triggering at the auxiliary electrode. As shown, Fig. 1, the SCR is provided with a normal control electrode 8 and an auxiliary control electrode 13 connected to the negative supply via a resistor 12. When a trigger voltage is applied to electrode 8, an initial discharge occurs adjacent to this electrode, a current flows through the load R L  and the potential of cathode 9 becomes more positive, reverse biasing junction 6, 7 adjacent to region 14. When the potential difference between electrodes 9 and 13 reaches the breakdown voltage of junction 6, 7 collision ionization in the space charge region produces a hole current in layer 6 which causes junction 6, 14 to inject electrons into layer 6. These electrons cause the SCR comprised of regions 4, 5, 6, 14 to ignite. Since region 14 is of limited area and resistor 12 has a higher value than the load resistance 11, the potential of electrode 13 increases rapidly until it is positive with respect to electrode 9 when it triggers the discharge of the main SCR adjacent to region 14. The delay in operation of the auxiliary trigger mechanism is small compared with the spreading time of the main discharge so that with the control electrode 8 and the auxiliary electrode 13 located at opposite sides of the cathode the ignition time of the SCR is about half that of a similar device without the auxiliary electrode. The resistor 12 may be replaced by a capacitor since only momentary currents are required to flow through this path. The switching time may be further decreased by utilizing a plurality of auxiliary electrodes which may have individual impedances or be connected to a common impedance. The auxiliary electrode may be C-shaped, partly surrounding the cathode at the opposite side of which is located the control electrode, Fig. 3 (not shown), or the auxiliary electrode may comprise an annulus surrounding the cathode which is provided with a central aperture in which is located the control electrode, Fig. 4 (not shown). Complementary devices may also be produced, Fig. 2 (not shown).
Patent GB-239226-A (GB)
Title: Improvements in combined spring and pneumatic wheels
IPC: B60B9/06
Filed: 1925-08-27
Abstract: 239,226. DuchÔteau, J. I. Sept. 1, 1924, [Convention date]. Addition to 237,238. Spring wheels. - The spring ring described in the parent Specification is now fastened to the. annular housing 20 by double-hooked pins 32 having curved wings 33 which grip adjacent convolutions of the spring. The piston-rod is connected to members 36, 37 by lateral pivot pins which engage in openings 38, the members 36, 37 forming lateral slides. Curved portions on the end faces of the piston-rod fit notches 42 in the members 36, 37, the notches 42 having inclined walls which allow the piston to swing. The base-member 37 may be connected to the spring ring by a double-hooked pin embracing adjacent turns of the spring. The cylinders, containing compressed air, may communicate with the atmosphere through openings which are fitted with valves.
Patent GB-1255547-A (GB)
Title: Improvements in and relating to liquid containers
Inventor: BOURGEOIS DAVID GASTON
IPC: B65D30/00
Filed: 1969-04-28
Abstract: 1,255,547. Portable containers. D. G. BOURGEOIS. 4 March, 1970 [28 April, 1969], No. 21594/69. Heading B8D. A collapsible sheet polyethylene container 1 is provided with a partially or wholly inflatable roof 2 having an aperture 3 so that when the container is filled with liquid through the aperture, the roof floats on the surface and erects the container. The container is provided with an inflation valve 8 and a draw-off tap 5. In a modification, Fig. 2 (not shown), the roof is formed with an inflatable toroid by welding an annular strip 9 at its edges to a single sheet roof. The container wall may be provided with calibrated markings to indicate the quantity of the liquid contents. The aperture may be closed by a plug or flap, and the container could be circular.