baber/WOPTO huggingface dataset:
Patent GB-767487-A (GB)
Title: Improvements in and relating to artillery equipment
IPC: F42C15/36
Filed: 1954-06-14
Abstract: 767,487. Ordnance. LOSFELD, A. June 14, 1954, No. 17432/54. Class 92. Ordnance, e.g. a mortar, is adapted for miniature ammunition practice by a calibre-reducing tube 2 secured at its extremities inside the gun barrel 1 by reinforcing sleeves 3, 15 screw-clamped to the tube 2 and engaging the barrel 1 by means of radial fins 11, 20 on the sleeves, the sleeve 3 at the nozzle end also comprising an annular tightening plug 8 screwed to the sleeve at 7 and having an annular internal projecting portion 9 which is forced hard against seatings 10 formed by extensions of the fins 11 to force them against the barrel 1. Holes 12 in the base of the plug 8 together with an annular passage 13 between the plug 8 and the mouth of the barrel 1 and the spaces between the fins 11 provide passage for the explosion gases to atmosphere. An internally threaded end portion 22 of the tube 2 receives a breech member 23 in which slides a firing-pin 24 terminating in an anvil 25 urged by a spring 27 into contact with the firing pin 26 of the gun 1. A series of openings 30 are provided in tube 2 and these are closed or opened by an adjustable sleeve 31 split longitudinally at 32 and locked after adjustment by a ring 33 screwed at 34. Graduation marks 35 are provided on the tube 2 for adjustment of the sleeve 31 in accordance with the fire-power required. The gases escape through the openings 30, between the fins 11 and through holes 12 of the plug 8 and through the annular passage 13 to atmosphere. In a modification Figs. 5, 6 (not shown) the openings 60 in the tube 2 are surrounded by an apertured spring- urged sleeve 58 adapted to slide between two positions fixed by abutments, one of these abutments being adjustable and the sleeve being forced back towards this abutment at the moment of firing by the explosion gases, this abutment determining the coincidence or otherwise of the openings 60 and the apertures 59 in the sleeve. A breech construction for the tube 2 is provided with a slide valve 54, Fig. 4 (not shown) which permits of free escape of air through ports 42, 43 during descent of the projectile in the tube but closes as soon as the projectile comes to rest against the valve 54 and remains closed during firing under the pressure of the explosion gases. Specification 767,488 is referred to.
Patent GB-1148521-A (GB)
Title: Production of textile yarns
Inventor: HALL PATRICK DAVID
IPC: D02J13/00
Filed: 1965-04-26
Abstract: 1,148,521. Interlacing filaments. COURTAULDS Ltd. 25 July, 1966 [26 April, 1965], No. 17470/65. Heading D1F. A bundle of filaments are interlaced by passing them through a zone of vibrating small solid particles-for example ballontini or sand. The bundle may be untwisted or have a spinning twist. The particles are vibrated 'by passing air through them, or 'by a box containing the particles being supported' on a spring strip which is vibrated either by a rotating tooth wheel engaging a side of the strip or by an electromagnetic.
Patent GB-977715-A (GB)
Title: Hydraulic programme control system for anchoring apparatus situated at the ends of conveyors in mines and for self-advancing mine roof supports
IPC: G09F3/14
Filed: 1961-04-24
Abstract: 977,715. Endless conveyers. GEWERKSCHAFT EISENHUTTE, WESTFALIA. April 24, 1961 [April 25, 1960], No. 14798/61. Heading B8A. [Also in Divisions E1 and F1] A conveyer 10 and associated coal-winning machine may be adjusted in two directions at right angles relative to hydraulically operated prop Groups B and C on a frame 12, by the action of hydraulic jacks 20, 21. The conveyer is then held by its own prop group A while the groups B and C are released and the frame 12 moved to a fresh position by further action of the jacks 20, 21. Activation of the props and the jack 20 is effected by a control valve (Fig. 3, not shown). The activation of the jack 21 is effected by a separate control. A regulating valve assembly {see Division F1) ensures that the pressure from the jacks of the group A can only be released by the operation of valves which are motivated by the pressure maintaining the jacks B and C in supporting position. Similarly the pressure applied to groups B and C cannot be released without maintaining the pressure applied to group A. When pressure is applied to groups B and C a pressure build-up of 50 atmospheres is reached whereupon further pressure supply to group B is prevented until the pressure in the jacks of group C reaches 150 atmospheres.
Patent GB-1472016-A (GB)
Title: Mounting apparatus for fuel injection nozzle
IPC: F02B3/06
Filed: 1975-04-28
Abstract: 1472016 Mounting fuel injectors CATERPILLAR TRACTOR CO 28 April 1975 [21 June 1974] 17495/75 Heading F1B A fuel injector is mounted so that it can be removed without removing the fuel supply line. Injector 26 has a nozzle portion 27 which is received in a smooth bore 15 in an engine cylinder head and includes a tapered collar 30, intermediate its ends, which fits in a tapered hole 45 in an adapter 44, to which fuel supply line 40 is connected. Fuel passes to a bore in the nozzle via passages 49 and 36 and groove 35. An internally threaded boss 47 on the adapter receives an externally threaded clamping member 38. The adapter is held to the cylinder head by a bolt 52 and distance piece 55. A spring clamp 58 is mounted on the head of bolt 52 and bears on a drain manifold 61 which receives leakage from the injector. An elastomeric boot 63 traps leakage to the outside of the injector.
Patent GB-1386276-A (GB)
Title: Device for opening packages
IPC: B26B27/00
Filed: 1972-04-17
Abstract: 1386276 Cutting device DOWLER & WAKEFIELD Ltd and A WILLIS 30 March 1973 [17 April 1972] 17537/72 Addition to 1321623 Heading B4B A device for cutting open packages according to claim 1 of Specification 1,321,623 and modified in that a guide arm 15 is provided extending outwardly from the body portion 10 in a direction longitudinally of the guide slot 16 so as to afford an in-line continuation or one edge of the guide slot. In a further modification a single double-edge blade 12 may be clamped by a removable plate 11 to the body portion 10. (For Figures see next column.)
Patent GB-761609-A (GB)
Title: Electronic device for the operation of a time piece movement
IPC: H03H9/24
Filed: 1954-06-15
Abstract: 761,609. Reciprocating motors. BULOVA WATCH CO., Inc. June 15, 1954 [June 19, 1953], No. 17606/54. Class 35. [Also in Groups XVIII and XL (c)] A tuning fork is maintained in oscillation by arranging that permanent magnets 21, 22, Fig. 1, mounted on the tines 19, 20 co-operate with coils 15a, 15b in the collector and base circuits of transistor 10. The electrodes are energized by battery 14 and the base is biased by resistor R and capacitor C. The A.C. from points A, B may be used to energize a synchronous clock or a bar 25 may operate a click and ratchet wheel assembly driving a clock.
Patent GB-530084-A (GB)
Title: Improvements in the art of photogravure, rotogravure and the like
IPC: G03B27/20
Filed: 1939-06-16
Abstract: 530,084. Photographic contact printing apparatus. HUGHS, L. June 16, 1939, No. 17614. [Class 98 (ii)] A vacuum printing frame for use in the photogravure or rotogravure process comprises an open frame to receive the plate carrying the image and a vacuum blanket to clamp a receiving sheet to the plate, the frame having register means to position the plate and the sheet. In the form shown, the frame 5 has a rubber seating 8 for the plate 10 and has hinged to it a frame 15 carrying the blanket 12. The blanket is formed with grooves 13, and has an outer ring 18 of soft rubber which seals against the frame 5. A rib 19 extending round the frame 15 forms a bulge on the face of the blanket engages the plate and forces it against the rubber seat 8. The register means for the plate comprises fixed blocks 21-24 against which two edges of the plate are forced by spring-pressed blocks 25-28 engaging the other two edges. The frame is also provided with register pins 30, or 34, Fig. 5, which enter sockets in the blanket. Register lugs 31, which may be thin' metal strips, engage over these pins and are attached by adhesive to the sheet of carbon tissue under the pressure of the blanket during printing. These lugs serve to register the carbon tissue on the cylinder to be etched, the cylinder carrying a bar provided with pins which engage them.
Patent GB-780222-A (GB)
Title: Improvements in or relating to contact arrangements in electric switches
IPC: H01H9/38
Filed: 1955-06-17
Abstract: 780,222. Snap-action switches. PREH, W., and PREH, A., [trading as PREH, ELEKTROFEINMECHANISCHE WERKE, J. PREH NACHFOLGER.]. June 17, 1955 [Oct. 1, 1954], No. 17634/55. Class 38 (5). In a snap-action electric switch having a plate-like member 4 carrying contact bridges 7<SP>1</SP>, 7<SP>11</SP>, 7<SP>111 </SP>which engage counter-contacts 6<SP>1</SP>, 6<SP>11</SP>, one of the countercontacts 611 is divided into two limbs and the contact bridges 7<SP>11</SP>, 7<SP>111</SP> are so staggered that the one further from the pivot (7<SP>111</SP>) disengages this counter-contact after the nearer one (7<SP>11</SP>) and sparking therefore always occurs at 7<SP>111</SP>. A double-pole switch is shown, the contact bridge 7<SP>1</SP> being so disposed that it disengages its counter-contact 6<SP>1</SP> after the circuit is open and is not, therefore, subject to sparking. The member 4 is pivoted at 2 and is connected by a torsional spring 5 to an operating member so forming a snap action mechanism.
Patent GB-1176025-A (GB)
Title: Valves for Internal Combustion Engines.
Inventor: JONES ERIC WOLSELEY
IPC: H05B6/02
Filed: 1967-04-18
Abstract: 1,176,025. Valves. FORD MOTOR CO. Ltd. April 18, 1967, No. 17704/67. Heading F1B. [Also in Division H5] In order to harden the end surface 17 of a valve stem 12 as well as the cylindrical side surface, the end 17 rests on a conical non-conducting ferromagnetic insert 16 at the bottom of the single turn induction heating coil 11. After heating, the stem is quenched by oil fed through holes 13 in the coil from a surrounding jacket 14. The insert 16 is a ferromagnetic plastic.
Patent GB-1321386-A (GB)
Title: Process for the preparation of carboxylic acid amides
IPC: C07C231/02
Filed: 1971-05-28
Abstract: 1321386 Carboxylic acid amides HENKEL & CIE GmbH 28 May 1971 [2 June 1970 3 March 1971] 17736/71 Heading C2C [Also in Division C5] Carboxylic acid amides are prepared by reacting an aliphatic or cycloaliphatic carboxylic acid containing 8-24 carbon atoms, or an ester thereof, with ammonia or an amine in the presence of a catalyst which is a compound of Ti, Zr, Ta or Sn and which is soluble in the reaction mixture. The acids may be saturated or unsaturated, and may contain hydroxy groups, or they may be cyclic, such as naphthanic or resin acids or polymerized unsaturated acids. Preferred esters are those of C 1 -C 4  alcohols. The amines may be primary or secondary aliphatic or cycloaliphatic mono-, di- or polyamines. The catalyst may be an ester of the metal ortho-acid with alcohols or ether- or polyether-alcohols; a complex with a 1,3- diketone; a halogen compound of the metal in its highest valency state; or an acyl compound, e.g. a metal acylate. Ground tin, which forms a soluble compound, may be used.
Patent GB-1430416-A (GB)
Title: Method and equipment for recording and/or reproducing broad- band signals especially video signals
IPC: G11B20/02
Filed: 1973-04-13
Abstract: 1430416 Recording video signals BADISCHE ANILIN- & SODA-FABRIK AG 13 April 1973 [14 April 1972] 17816/73 Heading H4F In a method of recording broad-band videosignals, on a magnetizable medium, e.g. tape or disc, the video signal, after having its upper frequency limited by a low-pass filter 1 to a maximum fm is frequency-modulated on to a carrier fc where fc=2<SP>n</SP>fm. To reduce the bandwidth of the resulting f.m. signal to that of the recording medium, the signal (b) is frequencydivided at 3 by 2<SP>n</SP> and, after amplification at 4 and low-frequency emphasis at 5 has its lower sideband recorded on the medium. With fm=2À5 MHz, n=1, fc=5 MHz, the F.M. signal extends from 4 to 6 MHz, or from 2 to 3 MHz after frequency division and the recorded lower sideband extends downwards from the carrier fc=2À5 MHz to 2 MHz. With these parameters the modulation index or: indicating narrow band frequency modulation wherein the spectrum of the modulated signal comprises substantially only the carrier and the first order upper and lower sidebands. This results in the recorded signal comprising a component derived from the carrier at 2À5 MHz and the first order sideband derived signal extending from 2À5 MHz to 2 MHz. For replay, the recorded bandwidth compressed lower sideband signal is first high-frequency emphasized at L, C 2 , amplified at 9 and "squared-off" at 10, before being frequency-multiplied at 11. In general, n stages of differentiation and full-wave rectification are used.
Patent GB-1444679-A (GB)
Title: After-burner fuel injection devices for jet engines
IPC: F23R3/20
Filed: 1974-04-24
Abstract: 1444679 Sealing pipes to walls SOC NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION 24 April 1974 [27 April 1973] 17858/74 Heading F2G [Also in Division F1] To reduce thermal stresses, a fuel pipe 15 is slidably mounted within a wall member 33 which is itself movable substantially axially of reheat combustion duct 5. The end of pipe 15 is welded to a flared ferrule 15c engaging a nipple 15d on the end of a feed pipe 26 external of duct 5, the connection being sealingly maintained by a threaded ring 27 screwed within a sleeve 28. The latter and ring 27 are locked together by external teeth 28d, 27b thereon engaging splines within a sleeve 30, a U-shaped locking pin 31 passing through sleeve 30 and between the two sets of teeth. Sleeve 28 is slidable within the bore 33c of wall member 33 which is itself pivoted about a bolt 34 passing through hole 33f and secured to a flat 5b on duct 5. Member 33 is thus capable of small angular displacements α within circular opening 5a in a direction generally axially of duct 5.
Patent GB-848531-A (GB)
Title: Improvements in or relating to radar apparatus
Inventor: SCHNEIDER ADAM BRONISLAW
IPC: G01S1/02
Filed: 1958-06-04
Abstract: 848,531. Waveguides. DECCA RECORD CO. Ltd. May 28, 1959 [June 4, 1958], No. 17930/58. Class 40(8). [Also in Group XL(c)] A waveguide system for producing wave energy polarized with any degree of ellipticity of either direction of rotation, comprises a rotatable section for adjusting the direction of polarization of a plane wave followed by an adjustable phaseshifter for producing a phase-shift between orthogonal vector components of the plane wave. A plane wave is fed through a rectangular guide 22 to a co-axial line 27 having a rotatable joint 28. The inner conduction of line 27 is terminated in a rectangular guide 30 in such a manner that the wave is launched with a plane of polarization at right-angles to the broad face of this guide. The rectangular guide leads to a sqaure guide 32 and thence to a circular guide 34 having a rotatable joint 35. The setting of the rotatable part of the system determines the orientation of the wave within a square-section guide 38. A differential phase shift between two components of this wave resolved parallel to adjacent walls of guide 38 is produced by a dielectric vane 40 lying parallel to one of the walls. The vane is movable (e.g. by a remotely controlled cam 42) across the wavegulde so as to give phase-shifts varying between Œ 90 degrees whereby any degree of ellipticity may be applied to the waves. If the phase-shifter is adjusted to give a linearly-polarized output signal, the plane of polarization may be rotated by adjusting the rotatable section. The system also includes a mode filter 43 consisting of a grid of thin wires and a slot 44 through which waves polarized in an undesired direction may be coupled to an absorbing circuit.
Patent GB-864395-A (GB)
Title: Remotely controllable valve for fluids
IPC: F16K31/40
Filed: 1959-05-26
Abstract: 864,395. Valves. EVANS, O. (General Gas Light Co). May 26, 1959, No. 17979/59. Class 135. [Also in Group XXXV]  A valve for controlling the supply of pressurefluid to or the exhaust from a cylinder C comprises diaphragms 9, 11 connected to move together by a hollow rod 33 and having bosses 26, 27 on which are formed valve closure members 28, 29 coacting with seats 31, 32, and pilot valves 49, 56 controlling the pressure in a chamber 13 bounded on one side by the diaphragm 9 which is imperforate. The other diaphragm 11 has holes 19 by which pressurefluid entering the valve housing at a port 39 has access to a chamber 18. An exhaust port (not shown) communicates with a chamber 12, and when the valve parts are in the positions shown, i.e. with the pilot valve 49 closed and the pilot valve 56 open to vent the chamber 13 so that the diaphragm assembly is urged to the right by the pressure in the chamber 18 and by a spring 45, the port 3 leading to the cylinder C is connected with the exhaust port. When the pilot valve 56 is closed and the pilot valve 49 opened to admit pressure fluid from the bore 46 through the rod 33 to the chamber 13 the diaphragm assembly is moved to seat the valve member 28 and unseat the valve member 27 so that the port 3 is connected to the pressure fluid supply. The pilot valves are connected by rods 51, 57 passing through seals 52, 58 to a disc 61 forming the armature of a double or single acting electromagnet 60 (see Group XXXV). The pilot valves may be operated by a double or single acting fluid motor instead of electromagnetically. The actuating fluid for the diaphragm assembly may be different from the controlled fluid in which case the rod 33 is solid and an inlet for a second fluid is provided behind the pilot valve 49. Specification 820,904 is referred to.
Patent GB-665404-A (GB)
Title: Improvements in production of nitrogen dioxide
IPC: C01B21/36
Filed: 1949-07-07
Abstract: Nitrogen dioxide free from other oxides of nitrogen is prepared by passing gaseous sulphur dioxide at atmospheric or slightly higher pressures into aqueous nitric acid initially containing not less than 40 per cent HNO3 and at a temperature from 15-35 DEG C., preferably 20-25 DEG C., and discontinuing the reaction when not more than half of the HNO3 initially present has been consumed.  The sulphur dioxide may be mixed with a diluent gas such as air, nitrogen or carbon dioxide.  In a continuous process, nitric acid is fed into one end of an elongated reaction chamber, sulphur dioxide is continuously injected into the said stream at one or more points, the sulphuric acid generated together with the nitric acid continuously withdrawn, and the nitrogen dioxide withdrawn at one or more points.  Preferably a vapour space is provided above the body of the liquid to allow the nitrogen dioxide to disengage.  In an example a 20:1 air/sulphur dioxide mixture at 20 DEG C. is passed into a liquid bath containing 72 per cent HNO3 by weight, at a rate of 42 litres per hour, the effluent consisting of an air/nitrogen dioxide mixture in proportion of 10:1 by volume.  The operation is discontinued when the HNO3 concentration dropped to 40 per cent. Specification 663,218 is referred to.
Patent GB-612420-A (GB)
Title: Machine for cutting a clearing groove behind the cutting edge of tools
IPC: B24B3/34
Filed: 1945-07-13
Abstract: 612,420. Grinding cutting-tools. SOC. FRANCAISE BEDAUX..July 13, 1945, No. 18001. Convention date, Aug. 9, 1944. [Class 60] In a machine for grinding a clearance groove in a cutting-tool T, the tool carrier is movable vertically by means of a micrometer nut and screw device and the grindstone G also is adjusted vertically. The tool is clamped in a carrier 32, with its cutting edge parallel to the movement of the slide 7, and the grindstone and its driving unit, which may be an air turbine, is clamped in a holder 46, the axis of the grindstone being parallel with the axis of the holder. The traverse of the tool past the grindstone is effected by a hand-member 12 on a shaft 10, carrying a pinion 9 which engages a rack 8 on the slide 7. Adjustments in a direction at right angles to the slide are effected by moving the slide 3, on which the slide 7 is mounted, by means of the handle 4 on a screwed shaft. The slide 7 is spigotted at 14 to locate a support 13 revoluble thereon but lockable in its position of adjustment by screws 15. The micrometer screw adjustment consists of an internally-threaded member 25 and an externally-screwed ring 17 located on the support 13 by a spigot 18 and a retaining-plate 19 which is secured to the support 13 by screws 20 and engages a shoulder 21 on the ring. The ring is turned by a projecting pin 23 and is locked by a screw 26. A disc 28 is coupled to the support 13 by pins 29 which pass through the plate 19, and the member 25 is similarly coupled to the disc 28 by pins 30, so that the member 25 and the support 13 are locked against relative rotation. The member 25 has a slideway mounting for the tool carrier 32 which is clamped therein by screw means. The sleeve 46, for carrying the grindstone, is mounted for adjustment by tilting, locking to its support 42 being effected by clamps 47. The support 42 is non-rotatably slidable on a hollow vertical column 41 by a hand-wheel 44 and screw 43. A gauge is provided for positioning the tool relatively to the grindstone, and consists of a block 35, slidable in a guide 34 on the side of the member 25, and carrying a vertical removable gauge rod 36. The slide is clamped by a screw 38 and the rod 36 by a screw 37. In operation, the cutting edge of the tool is arranged parallel to the slide 7 and the grindstone is lowered to touch the cutting edge. The part 51 of the gauge is then contacted with the cutting edge and the tool, with the gauge, is moved towards the grindstone until the grindstone contacts with the part 52 of the gauge 36, which is then moved aside by unfastening the screw 38. The tool is then reciprocated under the grindstone by the handle 12, and feed is put on by rotating the ring 17. The gauge 36 may have a number of faces, each suitable for a grindstone of a certain diameter. The grindstone may, when used in a tilted position, be of pencil form, operating endwise.
Patent GB-458766-A (GB)
Title: Improvements in or relating to folding seats and the like
IPC: A47C4/32
Filed: 1935-06-24
Abstract: 458,766. Folding seats. GREGORY, R. V., State Railway, Secunderabad, Deccan, India. June 24, 1935, No. 18094. [Class 52 (ii)] A camping or beach seat comprises two side members 31, the rear ends of which rest on the ground, while the front ends are supported by an X-form strut 32 hinged to them at 34 so as to be foldable beneath them. The rear ends are connected to two rear members 36 by loops 37. The upper ends of the members 36 converge and are connected by a hinge 35, and, like the fore ends of the members 31, receive pockets at the corners of a separate triangular flexible seat portion (not shown). A further seat portion 38 may be stretched between the members 31, or a tie may be placed in a similar position to prevent the parts 32 from splaying too much. The separate seat portion may be used as a wrapper for the folded-up device. The members 31 may have rear extensions, which may be pivoted.