baber/WOPTO huggingface dataset:
Patent GB-995826-A (GB)
Title: Improvements in and relating to frame grids
Inventor: SYGALL ALFRED
IPC: H01J19/38
Filed: 1964-04-30
Abstract: 995,826. Thermionic valves. MULLARD Ltd. April 30, 1964, No. 18006/64. Heading H1D. A frame grid for a discharge tube includes a pair of parallel backbones 1, 2 spaced apart by cross-bars 3, 4 welded to them at each end, the grid wire 5 being wound around the backbones and having each of its ends gripped within a hook 6 formed on the end of a cross-bar. The backbones and cross-bars may be of molybdenum, the inner surface of the hook portion being coated with a ductile material, e.g. copper, silver, or gold, to improve the clamping action (Fig. 5, not shown). In alternative embodiments, cross-bars 3 and 4 are formed as a single U-member (Fig. 3, not shown), and backbones 1, 2 are of elongated section, with flat sides, to give increased resistance to bending.
Patent GB-971703-A (GB)
Title: A semiconductor device
IPC: H01L23/40
Filed: 1961-05-18
Abstract: 971,703. Semi-conductor devices. SIEMENSSCHUCKERTWERKE A.G. May 18, 1961 [May 18, 1960], No. 18240/61. Heading H1K. Stresses produced by the heating and cooling of a semi-conductor device provided with electrodes 2, 3 which may be of molybdenum when the electrodes are in contact with heat radiating members of different coefficient of expansions are avoided by clamping the electrodes between heat dissipating members 4, 5 which extend over the entire surface of the device. As shown, members 4, 5 which are of copper and carry cooling fins 9 are held together by screws 6 passing through insulating bushes 11. Spring washers may be provided and to avoid the necessity for precision machining of the adjacent copper and molybdenum surfaces, a metal foil may be clamped between them. The edges of the device may be surrounded by a protective resin or glass or encased in a resilient metallic case with an insulating insert in its wall. The casing may be gas-filled. In a further arrangement (Fig. 6), diaphragm members 17, 18 are soldered to the metallised ends of an insulating insert 16.
Patent GB-1530854-A (GB)
Title: Process for the polymerisation of vinyl chloride in aqueous suspension
IPC: C08F265/04
Filed: 1977-05-02
Abstract: 1530854 Vinyl chloride suspension polymerization SOLVAY & CIE 2 May 1977 [3 May 1976] 18256/77 Heading C3L Vinyl chloride polymers which are less tacky and more easily calendered are obtained by aqueous suspension polymerization of vinyl chloride in the presence of an aqueous emulsion of a homopolymer of an alkylacrylate having a viscosity number at 25‹ C. in cyclohexanone of not greater than 600 l./kg.
Patent GB-1182111-A (GB)
Title: Improvements in and relating to friction welding.
Inventor: BLACK GEORGE ALEXANDER
IPC: B23K20/12
Filed: 1966-04-26
Abstract: 1,182,111. Welding by pressure; planing. G. A. BLACK, and R. A. BLACK. 10 April, 1967 [26 April, 1966], No. 18259/66. Headings B3L and B3R. Welding flash is removed from friction welded components by causing relative axial movement between the welded components and cutting means which as seen in the axial direction are substantially circular. A rod 1 is held in a rotatable chuck 2 and is friction-welded to a rod 3 held in an axially movable clamp 4, axial movement of the clamp 4 relative to the rod 3 being prevented during welding by a stop 5 movable by a toggle linkage and connected to the clamp 4. When the rods are welded axial forging pressure is maintained on the clamp 4 and the stop 5 is removed by the toggle linkage to permit the clamp 4 with a ring cutter 6 thereon to move along the welded rods and remove the flash 7. The cutting edge may be a helix or the cutter may be formed by tungsten carbide semi-cylinders brazed into the clamp 4 and two spaced anvils are provided on the chuck 2 against which the cut-off flash is pushed to facilitate removal. In a modification the stop 5 is withdrawn and the chuck 2 is moved to push the welded rods through the cutting means. The stop may be withdrawn at a controlled rate. For a double-headed friction-welding machine a pair of back stops provided by pistons in a hydraulic cylinder may be used as controlled rate retraction stops. Internal flash from welded tubes may be removed by an internal cutting ring or plunger and either or both of the workpieces may be rotated and/or moved axially during welding. A double cutter to perform a roughing cut and a finishing cut in a single stroke may be used and the workpiece may be a valve head.
Patent GB-418922-A (GB)
Title: Improvements relating to tables
IPC: A47B1/04
Filed: 1933-06-27
Abstract: 418,922. Folding tables. ILES, A. S., 179, Tyburn Road, Gravelly Hill, and UZZELL, H. G., 143, Gravelly Hill North, both in Birmingham. June 27, 1933, No. 18265. [Class 52 (iii).] A folding-leaf table comprises hinged leaves c which may be raised and supported by stays n pivoted to a slide f, secured to a central guide d by a spring bolt g. Specification 383,704 is referred to.
Patent GB-1366232-A (GB)
Title: Braking and pressure imbalance detector
IPC: B60T17/22
Filed: 1973-04-16
Abstract: 1366232 Detector for a two-circuit brake system SOC ANON DBA 16 April 1973 [18 May 1972] 18266/73 Heading F2E A device for use with a two circuit brake system for detecting braking and failure of one of the circuits comprises two pistons 16, 18 responsive to pressures in the respective circuits to move towards one another in opposition to a resilient member 24; the resilient member 24 comprises a metal sheet forming two opposite dihedrons 26, 28 with a common vertex and being supported in a housing 14 on the dihedron 26, the pistons 16, 18 moving substantially at right-angles to the respective surfaces of the dihedron 28. When both circuits are working the pistons 16, 18 move to close the dihedron 28 which thereby makes contact with contacts 42, 44 to cause a brake light 58 to come on. Should one circuit fail only one piston, say piston 16, acts on the resilient member 24 and the dihedron 28 will pivot about its vertex to make contact with contacts 42, 54. Light 58 will come on as before and so also will light 62 to indicate a circuit failure. With piston 16 inoperative contacts 44, 52 will be contacted by dihedron 28 to make lights 58, 60 come on. As shown, the device is integral with a master-cylinder the pistons 16, 18 being contained in bores 20, 22 in the master cylinder wall 10. A cover 12 of insulating material is fixed to wall 10 to define the housing 14 and supports the contacts 42, 44, 52, 54. A pivot pin 30 supports the resilient member 24 and a flexible sheet or strip 40 is provided in the mouth of the dihedron 28.
Patent GB-515643-A (GB)
Title: Electric radiators
IPC: F24C7/08
Filed: 1938-06-21
Abstract: 515,643. Electric radiators. BERRY, G. J., and PAINTON, C. A. June 21, 1938, No. 18438. [Class 39 (iii)] A radiator is provided with wings 6 which carry heating elements in trough reflectors 7, and are mounted to turn on columns 5. The base is hollow and a multi-coloured rotatable cylinder 11, as described in Specification 504,761, and a lamp 12 are mounted therein. A sheet of diffusing glass 14 is placed above the cylinder, the illuminating means being screened by the removable translucent member 8. The lamp illuminates the hollow of 'the radiator and coloured light also passes through the gap 15.
Patent GB-317185-A (GB)
Title: Improvements in or relating to cabinets and the like
IPC: G11B33/06
Filed: 1928-06-26
Abstract: 317,185. Yager, H. June 26, 1928. Cases.-A gramophone cabinet is constructed as a sideboard of the ordinary flat-topped type with drawers above and cupboards below, but the drawer at one end is dispensed with and the cupboard c continued through the full height of the sideboard to give room for a gramophone 5 including the motor and horn which is fitted and secured therein, the cupboard being of sufficient size to allow of winding up the gramophone and changing records. The front of the door 3c of the cupboard containing the gramophone may be formed with a false drawer front to match the other drawers.
Patent GB-1393963-A (GB)
Title: Labes dispensing system
IPC: B65C9/18
Filed: 1972-04-21
Abstract: 1393963 Labelling machines AVERY PRODUCTS CORP 21 April 1972 [29 April 1971] 18512/72 Heading B8F In a labelling machine of the kind which dispenses pressure sensitive labels 26 from a release coated web 28 by drawing it around a dispensing blade 18 the web 28 is alternately braked and advanced in accordance with the activation of a solenoid 56 under the control of a label sensor 24 which co-ordinates the label dispensing with advancing substrates, the web tension being kept constant for accuracy. In the de-activated condition of the solenoid 56 a lower spring-mounted brake bar 42 presses the web 28 against an adjustable upper brake bar 46 in order to brake it. Upon activation of the solenoid 56 carriage 32, which carries the lower brake bar 42 and a nip-roll 52 traversed by the spent web 28 pivots about shaft 34 causing both the brake to disengage and the nip-roll 52 to force the web 28 against a driven roll 54 which rotates with constant torque and velocity, thus advancing the web. Web tension is kept constant between the brake and the belt driven take-up reel 22 by virtue of a secondary brake system; the web 28 passes over a dancer roll 65 mounted at the end of a spring biased bar, whose displacement under increasing web tension brakes the take-up reel 22. Alternatively a slip clutch may be provided. Web tension is kept constant between the web feed reel 12 and the principal brake by means of a dancer roll 68 mounted on a spring-biased bar 70. A web snubber brush 64 imparts an initial force to the web 28 to aid in accurately positioning labels with respect to label sensor 24. A pressure leaf 80 prevents web 28 lifting near the dispensing blade 18. Means are provided to vary the elevation and pitch of the label dispenser. The apparatus of the invention may also be used with a vacuum-pick-up label applicator, or for dispensing labels torn from a web-carried perforated label strip.
Patent GB-769709-A (GB)
Title: Apparatus for and method of producing reinforced sheet material
Filed: 1954-06-25
Abstract: 769,709. Making reinforced paper. CARLSON, A. E. June 25, 1954, No. 18726/54. Classes 96 and 140. Paper &c., e.g. from two supply rolls 26 is fed between driven rolls 30, over curved plates 40, where cord, string, yarn, thread, or filaments of rayon or nylon reinforcement is drawn from spools on a rotating creel 86 through a pot of adhesive, and wound about the travelling paper webs. The reinforcement strands extending between the two paper webs are cut at 170 &c. and the paper fed downwardly between heaters 180 for drying and curing the adhesive, and the webs wound up at 230. The creel 86 may be in two halves bolted together at 88. A reserve creel 86a mounted on rails 114 supported by a jack 112 on a truck 110 may be swung into position when the spools of the creel 86 are exhausted, the new strands being secured to the severed ends of the old strands and the thread guides again lowered into the adhesive which is in a toroidal pot which may rotate with the creel. The amount of adhesive taken up may be controlled as by guide-eyes or pads &c. Heating may be provided between the curved plates 40 which plates may be crossed at an angle such that the wound reinforcement is at right-angles to the lengths of the two paper webs, or which may constitute a mandrel with longitudinally-moving feeding-pins, in which case each sheet may be folded back double on the mandrel and severed at the fold line so that four reinforced half-webs are formed from the two webs supplied. Alternatively, the mandrel may be of approximately circular cross-section so as to provide for a constant delivery rate of reinforcement strands from their spools.
Patent GB-811430-A (GB)
Title: Improvements in electrical bimetallic cut-out devices
Inventor: BORZONI JOHN JOSEPH MARTIN
IPC: H01H77/04
Filed: 1957-06-14
Abstract: 811,430. Thermal switches; snap-action switches; switch handles. BELLING & LEE Ltd. June 14, 1957, No. 18790/57. Class 38 (5). A snap-action thermal cut-out device comprises a bimetallic plate 17 formed with a circular dished part 21 normally dished upward (Fig. 1, not shown), to close contacts 23 and 24. Current is fed from tag 20 via the bimetallic strip 17, contacts 23, 24, and an inverted Z-shaped resistive strip (Fig. 4, not shown), connecting contact 24 to tag 35 and lying between shaped projections 30 and 31 on the insulating base-plate 2. On heating by excess current in the resistive strip the bimetallic plate assumes the dished form shown in Fig. 2, opening contacts 23, 24. Alternatively the heating strip may be omitted and overload current through the bimetallic plate per se cause the said operation. The insulating cover 1 carries two lugs for attachment to electrical equipment to be protected and is constructed as in Specification 811,431 allowing a passage between the cover 1 and the periphery of the base-plate 2 such that overheating not due to excessive current is readily communicated to the interior of the device to cause operation thereof. A cylindrical reset stud 8 having two rectangular prongs 13, 14, is formed of nylon such that its resilience allows assembly by pressing enlarged beads on the ends of prongs 13, 14 through slots 6 and 7 in the cover 1, which heads then prevent the stud 8 becoming disengaged from the cover by the thrust of an enclosed return spring 9. Operation of the reset stud 8 against action of the spring 9 causes the prongs to move to the position shown dotted wherein the prong 13 presses on the dished part 21 of the bimetallic plate at a point diametrically opposed. to a pip 32 integral with projection 31. The resultant mechanical pressures cause the part 21 to revert to its original upwardly dished shape and re-establish contact between contacts 23 and 24. There is sufficient length of bimetallic plate 17 between contact 23 and the point of pressure by prong 13 to ensure that if overheating persists while the reset stud 8 is held manually in the depressed position the cut-out device will still function. Specification 811,429 also is referred to.
Patent GB-1214762-A (GB)
Title: Method and apparatus for welding
Inventor: NELSON ROBERT
IPC: B23K37/04
Filed: 1969-04-11
Abstract: 1,214,762. Welding by fusion. ROLLSROYCE Ltd. 11 April, 1969, No. 18802/69. Heading B3R. In welding together two members, the latter are pressed into contact with each other, throughout the welding operation, by a substantially constant force. As shown, in electron beam butt welding at 17 of annular members 15, 16, the member 16 is acted on, through a ring 20, by the substantially constant force of three pairs of hydraulic rams 21. The rams are acted on by oil pressure of, say, 2000 p.s.i., in an accumulator 22 which comprises a piston acted on by gas pressure of, say, 1000 p.s.i. Control valves (26) are interposed between the accumulator and the rams. The members 15, 16, positioned by support members 13, 14, may be spigoted to each other. A weld-spatter shield 18 is carried by the support member 13.
Patent GB-973572-A (GB)
Title: Joints for lattice structures
IPC: E04B1/19
Filed: 1961-05-25
Abstract: 973,572. Rod couplings. C. F. FENTIMAN, A. E. FENTIMAN, and H. G. FENTIMAN. May 25, 1961, No. 18854/61. Heading F2G. [Also in Division E1] Structural members are connected together by a connector having keyway slots 10, Fig. 2, radial to the axis of the connector the longitudinal axes of the slots converging to intersect with the axis of the connector, each slot being engaged by a tongue on the end of a structural member 15 so that this member is normal to the length of the slot. The slots have a number of longitudinal grooves in each side. This connector is a frustum of a cone on generatrices of which are the slots. In Figs. 5 and 6 the connector is a cylinder 17 having three angularly disposed arms 19 having slots 20. It also has radial keyways 18. In the modification of Figs. 9 and 10 two parallel cylinders 22 connected by a web 23 have longitudinal slots 24 in their outwardly directed surfaces and three transverse cylinders 25-27 converge towards each side of the these cylinders and have longitudinal slots 28 in their outer surfaces. Specification 769,616 is referred to.
Patent GB-1428547-A (GB)
Title: Pipe connection for plastic pipes comprising a transverseley or helically corrugated pipe-connecting part
IPC: F16L17/025
Filed: 1973-04-18
Abstract: 1428547 Pipe couplings WAVIN BV 18 April 1973 [20 April 1972] 18856/73 Heading F2G The depth and width of successive helical or annular corrugations 9, 10, 11 decrease in the inward direction from the mouth of thinwalled plastics socket 2, which may be formed as a connecting sleeve or integrally with the end of a pipe section. The sleeve and pipe may be p.v.c., polythene, polypropylene or ABS. Ring 7 secures a resilient sealing ring 5.
Patent GB-531185-A (GB)
Title: Improvements in electric lamps
IPC: F21V7/00
Filed: 1939-06-29
Abstract: 531,185. Lamp-cover glasses. RAWLINGS, G. W. June 29, 1939, No. 18917. [Class 75 (ii)] A reflector for a lamp of the directional beam type, consisting of a transparent or translucent annular or part-annular prism or a series of two or more of these D<SP>1</SP>-D<SP>4</SP> arranged to direct light forwardly in a parallel beam from a light source G, is provided with a condensing lens J interposed between the reflector and light source in order that the shaping of the reflector may be simplified and more rays reflected forwardly in the parallel beam. As shown the lens J is formed on an annular cap H enclosing the light source and integral with a front lens K' producing parallel rays and has two different halves K<SP>1</SP>, K<SP>2</SP> directing light to different portions of the reflector. The whole arrangement functions as a lamp cover glass and is formed with a rim C internally silvered to simulate polished electroplated metal. The rear surface of the reflector is frusto-conical and makes an internally reflecting angle of 45 degrees with the lamp axis and has an outer portion F<SP>2</SP> inclining to an angle of 35 degrees at its outer edge F<SP>4</SP>. The cap H may be integral with or removably screwed into the reflector and both are preferably formed from thermo-plastic material which can be cast or moulded under pressure such as is known under the Registered Trade Marks " Diakon " or " Perspex."
Patent GB-1460949-A (GB)
Title: Riveters
IPC: B21J15/04
Filed: 1974-04-30
Abstract: 1460949 Riveting RIVETING SYSTEMS Ltd 6 Feb 1975 [30 April 1974] 18920/74 Heading B3U A blind riveter comprises a channel shaped body 1 containing a jawcase 3, a jaw 4 pivotally mounted (at 5) in the jawcase 3 for clamping a mandrel of a blind rivet against the jawcase 3, a handle 6 pivotally connected to the body 1 (at 8) and the jawcase 3 (at 7), a hole 14 in the body 1 through which rivets can pass and a wire spring 9 flexible about a pin 12 and secured at one end to the body 1 at 10 and abutting a projection 11 of the jaw 4 at its other end. In use, the handle 6 is closed to cause the jaw 4 to pivot about a pin 5 whereby a mandrel of a blind rivet which has been inserted through the hole 14 is trapped between teeth 15 on the jaw 4 and the U-shaped jawcase 3. Upon further movement of the handle 6, the mandrel is pulled to set the rivet.
Patent GB-318136-A (GB)
Title: Improvements relating to rotary glass blowing machines
IPC: C03B9/22
Filed: 1929-06-20
Abstract: 318,136. Bullman Machine Co., Ltd., (Assignees of Hilimann, H.). Aug. 28, 1928, [Convention date]. Blowing.-Relates to a rotary glass-blowing machine of the kind in which a number of mould units rotate about a vertical axis. According to the invention, the machine is provided with locking- devices which enable any desired member of a mould unit to be put into and out of operation when desired, even while the machine is rotating. A mould unit is shown in elevation in Fig. 1, and the locking-devices are shown in plan in Fig. 16. Charges of glass are gathered by suction, and for this purpose the parison moulds 3, Fig. 1, are lowered as they pass over an open forehearth 2. The base of the machine is an annular frame 4 on which a base ring 8 revolves. Each mould unit is supported by a frame, composed bars 11, 12, erected on the ring 8. A frame carries all the members of a mould unit comprising a table 15 to receive a finishing mould 16, a parison mould slide 17, and a ring mould slide 19. The parison mould is raised and lowered by a thrust rod 85 which is operated by a cam 307 formed on the upper surface of the frame 4. The slide 19 carrying the ring mould is raised and lowered by a thrust rod 246. The parison mould is opened and closed by the rotation of a vertical shaft 118, Figs. 1 and 16, and the finishing mould is opened and closed by the rotation of a vertical shaft 37. The thrust rod 85, which raises or lowers the parison mould, passes through an aperture in a plate or table 55 that forms the top of the box 10 at the lower part of each vertical frame. The rod has a ring 85<1> above the table, and a lever 254, pivoted on the table, can be turned to engage the ring and prevent the rod from descending, thus preventing the parison mould from dipping to make a gather. The vertical rod 246 which lifts and lowers the ring mould has a nose 246<1> which can also be engaged by a lever 261 pivoted on the table 55 to prevent the mould from being lowered. The shaft 118 which opens and closes each parison mould can be prevented from rotating, to close the mould, by a bolt 256 on the table 55 which engages a lever 116<1> secured to the shaft. Another bolt 258 can be made to engage a lug 42<1> on the shaft 37 which opens and closes the finishing mould. Specifications 287,067, 315,347 and 318,138 are referred to.
Patent GB-668071-A (GB)
Title: Lay construction for looms
IPC: D03D49/60
Filed: 1948-07-14
Abstract: 668,071. Slay construction for looms. BLU MENTHAL & CO.. Inc. S. Julv 14, 1948. No. 18950/48. Class 142(iii) A slay comprises a tubular member 1, at the ends of which are mounted .the shuttle boxes, and a tubular reed cover 30. The member 1 is adjustably secured to the slay swords 2, 3 by brackets 4, 5 welded to the member 1. Shuttle boxes are mounted on pads 9, 15. The reed 34 comprises upper and lower channel-shaped members 25, 18 having horizontal flanges 13, 19 which abut the swords 2, 3. The reed cover 30 comprises a tubular member adjustably secured by brackets 26, 27 in slots 29 in the swords. The member 1 may be made of magnesium or aluminium or of an alloy thereof or of steel. The member 1 may have a circular, square, oblong, or hexagonal cross-section. The shuttle does not run on a shuttle race and, if caught in the shed, may fall through the lower warp threads to the floor. Specification 668,072 is referred to.