baber/WOPTO huggingface dataset:
Patent GB-1235162-A (GB)
Title: Automatic power tool
IPC: B25B23/145
Filed: 1968-06-12
Abstract: 1,235,162. Screwdrivers and nutrunners. ARO CORP. 12 June, 1968 [5 Oct., 1967], No. 28022/68. Heading B3N. In a portable pneumatic screwdriver or nut runner, a tool-holder 20 is driven by a motor 74 through a torque-limiting clutch comprising balls 56 which are received in holes 57 in a hollow clutch spindle 55 integral with the toolholder and engage with cam grooves 58 in a drive spindle 46 and with a conical surface 59 in a follower sleeve 60 axially displaceable against spring-loading 62 adjustable by a nut 63, and an on/off air valve 8 which is automatically opened in response to the force of application of the tool to a workpiece is actuated through means which are in contact with the valve 8 and the tool and include a releasable connection comprising a ball 48 which is automatically released in response to axial movement of the follower sleeve 60 when the clutch overruns so that the valve 8 is closed to shut-off the motor 74 when the torque developed in driving the toolholder 20 reaches the predetermined value. A screwdriver bit 10 is driven by the toolholder 20 through a hexagonal portion 36, and is held in the toolholder with provision for limited axial displacement under the force of application to a screw by a ball 32. A thimble 44 in contact with the bit 10 has an aperture 39 which receives the ball 48 and is positioned adjacent a groove 49 in a spool 47 which actuates the valve 51 through a rod 50, ball 71 and an extension 70 of the valve. A sleeve 52 normally holds the ball 48 in such a position that it engages the groove 49 to connect the thimble and spool, but when the sleeve is axially displaced against spring- loading 53 by a clip 54 on the follower sleeve 60, a counterbore 30 in the sleeve 52 permits the ball 48 to move outwardly from engagement with the groove 49. The on/off valve 8 supplies the motor 74 through a reversing valve 80, and the motor drives the spindle 46 through reduction gears. A lip 61 on the follower sleeve 60 may prevent the balls 56 from riding over the ends of the cam grooves 58 in the drive spindle.
Patent GB-158725-A (GB)
Title: Improvements in and relating to friction driving gear for fitting to motor vehicles and the like
IPC: F16H15/10
Filed: 1919-11-17
Abstract: 158,725. Sirett, F. Nov. 17, 1919. Variable-speed friction gearing comprising a disc a driving a movable roller b is mounted upon a rigid bed-plate j adapted to be fitted to the chassis of a motor-vehicle. The disc a has a central loose plate a<3> with a backing a<1> of fibre &c. for taking the drive up gradually. A spring h maintains the roller in contact with the disc. The roller b is operated from a lever d, and power is transmitted from a sprocket k.
Patent GB-602136-A (GB)
Title: Improvements in the fabrication of pipe bends
IPC: B21C37/28
Filed: 1946-07-13
Abstract: 602,136. Making pipe fittings. BARR, THOMSON, & CO., Ltd., and REID, J. L. July 13, 1946, No. 28488. [Class 83 (ii)]  Pipe bends are made by forming two press ings 10, 10a, each of annular trough form of semi-circular cross section, machining the edges 11 to bevelled form, placing the pressings together to form a hollow ring, welding by filling the groove formed between the edges with weld metal 12 and then sawing or otherwise cutting the pipe bends from the ring. The troughs may be made so that the position of the weld is in the plane of the bend, as shown or normal therto. Specification 272,302, [Class 83 (ii)], is referred to.
Patent GB-254590-A (GB)
Title: Improvements in or relating to instruments for correcting the line of fire of ordnance
IPC: F41G3/14
Filed: 1925-01-05
Abstract: 254,590. Grotendorst, W. F. Jan. 5, 1925. Plane-trigonometry calculators.-A device for correcting the line of fire of ordnance for facilitating " ranging " comprises a table and two transparent plates pivotally connected together at a common point representing the target. Each plate has a set of parallel lines marked thereon and the plates are adapted to be set to correspond in direction to the lines joining the target to the gun and two observation posts. The device is intended for use with gunnery calculators, as described in Specifications 254,351 and 254,588. As shown, two transparent plates 4, 5 are pivotally mounted at 6 on a sector-shaped plate 1. the plates being attached respectively to wires 2, 3, which serve to adjust the plates in accordance with the directions of the target as seen from one observation post and the gun respectively. The plate 1 has a fixed line 7 thereon which is set in the direction of the target from the second observation post. All the plates 1, 4, 5 are marked with lines at successive distances representing 50 metres, the lines being parallel to the line 7 and wires 2, 3 respectively.
Patent GB-504556-A (GB)
Title: Improvements in and relating to electric gas-blast switches
IPC: H01H33/70
Filed: 1937-04-20
Abstract: 504,556. Gas-b1ast switches. BRITISH THOMSON-HOUSTON CO., Ltd. Oct. 20, 1937, No. 28601. Convention date, Oct. 21, 1936. [Class 38 (v)] A switch wherein the arc is quenched by pressure-gas supplied through a valve positively opened and closed by the movable-contact drive, has the drive detachable from the valve and recoupling effected in a number of stages during switching on. Thus, if the latter operation is not properly completed, disconnection may at once be effected and the contacts separated to a safe non-arcing distance while, due to the recoupling, they are subjected to a blast. Since the favourable position for normal arc-quenching is not that at which arc-over can occur during circuit-closing, a further coupling-stage is provided between the drive and valve approximately at the final closed position. The movable contact rod may be pivoted to one end of an intermediately-pivoted lever, the other end of which is pivoted to a stepped pawl which is spring-pressed into engagement with the valve-spindle, the arrangement being such that according to the contactposition, one or other of the steps of the pawl will engage the spindle and open the valve if the contact is moved back from a faulty intermediate position. The pawl is uncoupled from the spindle so as to allow closure of the valve by the final contact-disconnecting movement.
Patent GB-490271-A (GB)
Title: Improvements in intermittently operating horizontal coke ovens
IPC: C10B27/00
Filed: 1937-10-21
Abstract: 490,271. Withdrawing gas from coke ovens. CONCORDIA BERGBAU AKT.-GES. Oct. 21, 1937, No. 28739. Convention date, Dec. 8, 1936. Drawings to Specification. [Class 55 (i)] In the working of intermittently operating horizontal coke ovens having a gas collecting channel connected with the upper gas collecting spaces of the ovens and situated at the ends of the chambers opposite the hydraulic main, the temperature of the upper gas collecting space of a particular oven is maintained at the optimum value for the maximum yield of light oils from the gases passing therethrough, by passing the gas from other ovens at a different distillation stage through the gas collecting space under control, the ovens supplying the attemperating gas having their connections with the hydraulic main throttled or wholly cut off therefrom. For a maximum yield of benzene a temperature of over 700‹ C. is specified for the gas collecting space under control and under 600‹ C. for toluene and xylene. In the latter case additional cooling may be effected by the introduction into the collecting channel of a cold extraneous combustible gas or steam or a part of the gas from the hydraulic main. The gases in the channel may also be cooled by injecting a cooling agent therein such as tar or ammoniacal liquor; the channel is preferably heat insulated. In an example of the working of a coke oven plant in which the distillation period of an oven is divided into four stages of which the first and third are the initial degassing and the union of the tar seam stages respectively, the temperature of the gas collecting spaces of ovens in the second and fourth stage of distillation is too high and is attemperated by passing therethrough gas from ovens in the first and third stage of distillation, these ovens being closed to the hydraulic main. In another example, half the ovens of a plant are always closed to the hydraulic main and the gases therefrom passed through the gas collecting spaces of the remaining ovens with or without cooling in the gas collecting channel. Each of the two groups change their function by reversal of the valves to the hydraulic main at intervals.
Patent GB-1014805-A (GB)
Title: Production of inorganic alkali metal salts, chlorine and cathodic products
IPC: C01B25/30
Filed: 1962-07-26
Abstract: One or more nitrates, sulphates and fluorides of alkali metals and chlorine gas are simultaneously produced by electrolysing an aqueous solution containing at least one alkali metal chloride and at least one of the acids HNO3, H2SO4, HF at a temperature above its crystallization temperature, to obtain chlorine at the anode, hydrogen and/or other products at the cathode, and the desired salt which is separated preferably free from chloride by crystallization from the outgoing electrolysed solution.  In general, the electrodes consist of shaped and slotted graphite plates, but for producing alkali metal nitrates, particularly NaNO3 and/or KNO3, pure hydrogen may be obtained by using platinum or platinum-plated cathodes, or the cathodic hydrogen may be partly or wholly replaced by the gaseous products of the nitrate ion reduction, viz.  NO2, NO. N2O or N2, e.g. pure NO may be obtained by using cathodes of graphite granules; the NO may be oxidized with O2 or air and absorbed in water to give nitric acid for recycling.  The electrolysis may be carried out in a cell fitted with bipolar electrodes and equipped wth diaphragms of polypropylene cloth in the electrolytic spaces.
Patent GB-1390851-A (GB)
Title: Antidegradant
IPC: C08K5/29
Filed: 1972-06-20
Abstract: 1390851 Esters of N,N-dihydroxyalkyl-N<SP>1</SP>- phenyl-p-phenylene diamine HOOKER CHEMICAL & PLASTICS CORP 20 June 1972 [21 June 1971] 28762/72 Heading C2C [Also in Divisions C3 and C5] The invention comprises compounds of formula in which X and Y are integers from 1-12, Z is NH4; H; alkali metal; C 1 -C 6  alkyl or C 1 -C 6  hydroxyalkyl; R is ethylene, 1,2-propylene, 1,2-butylene, 2,3-butylene or styrylene; and R<SP>1</SP> is an optionally substituted divalent aliphatic or carbocyclic radical having up to three carbocyclic rings, preferably arylene, alkylene, alkenylene, cycloalkenylene or cycloalkylene containing from 2-24 carbon atoms in the nucleus, substituents being -CO 2 H, halogen or C 1 -C 6  alkyl. The compounds are prepared by reaction of p-amino diphenylamine with an alkylene amide, e.g. ethylene oxide, in a molar ratio of at least 1 : 2 followed by reaction of the product with an appropriate acid anhydride. N,N - Dihydroxyethyl - N<SP>1</SP> - phenyl - p - phenylenediamine, N,N - dihydroxypropyl - N<SP>1</SP>- phenyl - p - phenylenediamine and N,N - dihydroxypropoxypropyl - N<SP>1</SP> - phenyl - p - phenylenediamine are prepared by reaction of paraamino-diphenylamine with ethylene oxide or propylene oxide respectively. The compounds of Formula I are stabilizers against atmospheric oxidation for use in oxidizable organic substances containing carbon to carbon unsaturation.
Patent GB-784845-A (GB)
Title: Improvements relating to liquid atomisers
IPC: B05B7/10
Filed: 1955-10-10
Abstract: 784,845. Spray-producers. FRASER, R. P. Oct. 10, 1955, No. 28824/55. Class 69 (3). Liquid supplied to an atomizer nozzle by a pipe 4 flows through a chamber 13 and a space 14 and through tangential slots 15 into a swirlchamber 16, and issues from an orifice 7. Air or steam is supplied to the nozzle casing 1 by a pipe 17, and passes through holes 18 and passed whirl-imparting vanes 19 to a converging annular exit passageway 12, formed between the casing 1 and the periphery of a front dished plate 10. A proportion of the air or steam flows through tangential slots 22 in the rear face of the plate, and passes along the internal surface of a tubular passage 20 extending forwardly of the orifice 7. The conical liquid film issuing from the orifice is accelerated and rotated by the whirling gas stream, and when the mixture reaches the outer end of the tubular passage it expands radially outwards and strikes the converging annular stream of air or steam flowing from the annular passageway 12. The latter is, in section, of convergent divergent form. Cooling fluid supplied through a pipe 24 is fed to the hollow plate 10. The width of the passageway 12 may be altered by replacing a shim 23 by one of different thickness. A detachable liner 25 may slightly overlap the slots 22 at its rear, and this overlap can be varied by replacing a shim 26 by one of different thickness. The passage 20 may be flared or outwardly conical. Specifications 536,224, [Group XI], 664,676 and 784,846 are referred to.
Patent GB-536022-A (GB)
Title: Improvements in or relating to electric condensers
IPC: H01G4/32
Filed: 1939-10-27
Abstract: 536,022. Metal foil. STANDARD TELEPHONES & CABLES, Ltd., MORLEY, J. F., and LARSEN, P. W. Oct. 27, 1939, No. 28829. [Class 83 (ii)] [Also in Group XXXVI] Metal foil for the manufacture of wound condensers is backed with a wider strip of paper, &c., a layer of polymerizable material, or cellulose acetate being then applied, as wide as the paper, the backing being stripped off. The dielectric may be applied by spreading, spraying, brushing, or casting. The exposed metal at the back may be similarly coated. Specification 490,814, [Group IV], is referred to.
Patent GB-654753-A (GB)
Title: Process for treating bituminous coal, lignite, peat and shale and products obtained thereby
IPC: C10G1/00
Filed: 1948-11-05
Abstract: Resinous, waxy and oily constituents extracted by ethylene dichloride from bituminous coals, lignites, peats or unoxidized shales are recovered by fractional distillation and the solvent distilled from the resinous and other residues is condensed for re-use.  The bottoms may be dissolved in ethylene dichloride and resins precipitated by addition of ethyl alcohol &c.  In an example, 16 cuts are obtained by fractionally distilling the leached lignite at temperatures ranging at atmospheric pressure from 281 DEG  C. to 383 DEG  C., and further products are obtainable from the remaining pitch by cracking.
Patent GB-391143-A (GB)
Title: Firing device for automatic fire arms for single shot firing or drum fire
IPC: F41A19/33
Filed: 1931-10-16
Abstract: 391,143. Automatic guns. CESKOSLOVENSKA ZBROJOVKA AKCIOVA SPOLECNOST v. BRNE and STALLER, K., 7, U Lazaretu, Br³nn, Czecho-Slovakia. Oct. 16, 1931, No. 28856. [Class 92 (ii).] Firing mechanism adjustable for singleshots, continuousfire, and safety, and of the kind having a trigger-bar 17 that co-operates with stop faces on a rotary switch member 20 which (1) permits a movement of the trigger-bar in the direction p, and a rocking movement in the direction q when adjusted for firing single shots, (2) permits a movement in the direction p only when adjusted for firing continuously, and (3) precludes movements in either of these directions when adjusted for safety. According to the invention, in order to house the firing mechanism in a shallow casing beneath the firearm, the trigger-bar has a raised dished portion 35 the front of which co-operates with the switch member, a lower portion 17<11> which extends forwardly to engage the sear 4, and an intermediate portion which passes through an opening 18 in the casing of the firing mechanism. Fig. 4 shows the switch member the stop faces on which are formed on a part of rectangular section. With the lever 21 of the switch member in the single-shot position A, on pressing the firing button 16, the trigger-bar can move forward into a recess 26 and a projection 30 on the bar can move in a recess 25 to permit the trigger-bar to rock in the direction q to disengage from a projection 46 on the sear. Both movements of the trigger-bar are effected against the action of a single inclined spring 40 the guide rod 37 of which detachably engages a notch 39 in the casing. In the continuous-fire position C of the lever 21, the projection 30 on the trigger-bar engages a stop face 28 on the switch-member when the bar moves forward and the sear is therefore released and held as shown in Fig. 2. In the safety-position B of the lever 21, the surface 28 on the switch-member prevents forward movement of the trigger-bar.
Patent GB-918271-A (GB)
Title: Improvements in closures for circular apertures in pressure vessels
Inventor: WHITE FRANCIS GUNSTON SWIFT
IPC: F17C13/06
Filed: 1958-09-09
Abstract: 918,271. Covers for resisting fluid pressure. DANKS & CO. (OLDBURY) Ltd., EDWIN. Sept. 9, 1959 [Sept. 9, 1958], No. 28864/58. Class 123 (1). A dished cover 6 for a cylindrical pressure vessel 2 having an externally flanged rim 16 has a mating flange 10 to which is bolted a semicircular channel-section locking member 22, an identical member 24 being bolted to the flange 16 so that when the cover is slid downwardly into the closed position the locking members 22, 24 respectively engage over the flanges 16, 10 to hold them together. To seal the closure a flexible joint ring 32 held in an annular groove 30 in the flange 16 is forced into contact with the flange 10 by air or other fluid under pressure admitted through a duct 36. In a modification, Figs. 6 and 8, the cover is supported by a hinged frame 40 and the locking member is formed in four equal arcuate sections 46, 48, 50, 52. The sections are advanced into the locking position and retracted hydraulically, each section having a pair of pads 54 to each of which is secured a connecting rod 60 from an hydraulic cylinder 62 mounted on a bracket 64 attached to the end of the pressure vessel.
Patent GB-192039-A (GB)
Title: Improvements in or relating to the manufacture of rubber bales
IPC: C08J7/12
Filed: 1922-10-24
Abstract: 192,039. Hopkinson, E. Jan. 20, 1922, [Convention date]. Bales; packing india-rubber &c.-A thin skin is formed on the surfaces of rubber bales to protect them during transport &c. The skin may be formed in various ways, for example, by dipping, brushing &c. the surface with a solution of bromine, chlorine, iodine, sulphur monochloride, in carbon tetrachloride preferably of about 3 per cent strength, by superficial cold vulcanization with sulphur chloride &c., or by coating with shellac, varnish, nitro-cellulose &c., to which a softening agent such as glycerine may be added.
Patent GB-697986-A (GB)
Title: Improvements in dyeing polyester filaments, yarns and fabrics
IPC: D06P1/673
Filed: 1950-11-27
Abstract: The affinity of filaments, yarns and fabrics of synthetic linear polyesters derived from glycols and terephthalic acid for dispersed acetate dyestuffs, is improved by treating the filaments, yarns or fabrics with sulphuryl chloride.  In an example, pieces of fabric of polyethylene terephthalate yarn are treated for periods up to 15 minutes in sulphuryl chloride, washed with dilute caustic soda and then with water, and dyed with Dispersol Fast Scarlet G150.  The depth of shade obtained is proportional to the time of treatment.
Patent GB-1165844-A (GB)
Title: Current Converter incorporating a Plurality of Parallel Connected Semiconductor Diodes
IPC: H01L23/36
Filed: 1967-06-22
Abstract: 1,165,844. Semi-conductor devices. SIEMENS A.G. 22 June, 1967 [23 June, 1966], No. 28960/67. Heading H1K. A semi-conductor diode array comprises a single row of diodes such as z connected between a pair of closely spaced parallel rectangular busbars Z, S. The housings of the diodes z are mounted as shown on the outer face of the bar Z, and the connection to the bar S, preferably made to the outer face of that bar, may incorporate a fuse s and a flexible lead v. Insulating spacers may separate the bars Z, S, which may contain channels for a coolant. A number of such pairs of bus-bars carrying diodes may be joined in parallel by transverse bars.
Patent GB-185044-A (GB)
Title: Singeing devices for textile fabrics
IPC: D06C9/00
Filed: 1921-11-01
Abstract: 185,044. Osthoff, W. Nov. 1, 1921. Stoves for singeing fabrics.- In a singeing- device for textile fabrics, guide-walls 3 are arranged on each side of the vertical mouth of the burner so that hot gases issuing laterally are deflected in an upward direction; the burner extends across the width of the device, and openings 18 for supplying secondary combustion air are provided between the guide-walls and the mouth of the burner. The apparatus may be used either with or without the cylinder 22 or the usual curved singeing plate, with or without removable lining bricks or plates 3<a>, 3b for the guide-walls 3, and with or without deflector plates, as 20, on the two sides where the fabric enters and leaves the apparatus. The gaseous fuel passes along a channel 9, through a transverse hole 10, back along a second channel 11, and then through an opening 12 to the jet 13, 14, complete combustion of the fuel and of any gases produced by the singeing of the fabric being ensured by air passing into the burner casing 2 through an opening 15 and issuing through rows of perforations 18 in the upper plate 17. The casing may be packed with a granular substance as shown at 23.
Patent GB-533616-A (GB)
Title: Improvements in or relating to means for sticking strips round the edges of boxes
IPC: B65C1/04
Filed: 1939-10-30
Abstract: 533,616. Securing strips round boxes. TRIGGS, W. W. (Dorgelo, J. I.). Oct. 30, 1939, No. 28982. [Class 18] Paper strip is drawn by grippers e in front of a box a which is pressed between resilient jaws d, d<SP>1</SP> against a ram g and past a spring, plate u so that it is adhered at three sides. Pusher h then advances bringing a tailpiece q on a pivoted corner-presser n out of engagement with a stop r and permitting a spring p to engage element n with the box corner. Thereafter the box is pressed between lateral pressure-applying devices, eg. between brushes m, a roller s engaging a nib j to release element n and permit the free end of the strip to be pressed over on to the other end.
Patent GB-534091-A (GB)
Title: Improvements in telephone systems
IPC: H04M1/58
Filed: 1939-10-31
Abstract: 534,091. Transmission systems. GENERAL ELECTRIC CO., Ltd., and FAIRBAIRN, E. P. Oct. 31, 1939, No. 29022. [Class 40 (iv)] The impedances of sub-station circuits, lines, transmission bridges, and any exchange equipment used in a connection are such that each circuit &c. is faced by its correct matching impedance. The lines may be provided with adjustable correcting networks which for overhead lines are resistive only, inductive or capacitative elements being added if the line employs twisted pairs. Series inductances may be connected at each end of the line or distributed loading may be used. Junction impedances are brought to the desired value by suitable terminal transformers, phase correcting networks, repeaters &c. Transmission bridges are arranged as pass filters of the desired impedance either by special design including the use of laminated cores for the relays or by the addition of impedance elements. The matched sub-station circuit comprises a hybrid coil T1-T4 and a line balance Z. The microphone M if of high impedance ¢ Z is connected directly between one line and the centre point of T1, T2, but if of lower impedance is brought up to the required impedance by auto-transformer AT, feed current being localized by condenser C1. The receiver R is associated with elements C2, C3, R3 to present a resistive load, the turns ratio of the hybrid coil being calculated for proper matching. If some side-tone is desired the balance of the coil may be upset by resistance R2. The microphone and receiver circuits may be replaced by loud-speaking equipment with separate amplifiers for the two directions of speech or, if switching is used, with a single amplifier. Branch circuits for operators or monitors are of high impedance.