baber/WOPTO huggingface dataset:
Patent GB-869860-A (GB)
Title: Resistance materials and method of making same
Inventor: DALTON HAROLD RICHARD
IPC: H01B1/00
Filed: 1958-05-09
Abstract: 869,860. Printing processes. TIMEFAX CORPORATION. May 9, 1958, No. 14906/58. Drawings to Specification. Class 100(2) [Also in Groups XXXVI and XL(a)] Semiconductive zinc oxide is prepared by heating a mixture of non-conductive zinc oxide and a bivalent or trivalent metal in elemental or compound form, in a hydrogen, nitrogen or other non-oxidising atmosphere to a temperature not above 900‹C., and cooling also in a non- oxidising atmosphere. In one example 60 gms. of zinc oxide, 3 gms. of zinc formate are mixed with water, dried and pulverised, heated to 700‹C. for five minutes in vacuo to produce a form of zinc oxide still whitish in hue and having a resistivity of 10<SP>5</SP> ohm cms. and which fluoresces at 4800-5400 A under ultra violet light. In another example 60 gms. of zinc oxide are mixed with 3 gms. of silver carbonate. Aluminium formate may be used with, or instead of the zinc formate. Compounds of other metals, or metals in powdered form may be used such as Cu, Mn, Ni, Fe, Sn, Bi, Ag, Pb, Ca, Ba, Cd, Mg. The heating may be continued for a period as long as 6 hours and the finished material may have between 0À2% and 20% of the activator metal giving a resistivity of 3Î10<SP>3</SP> and 3Î106 ohm cms. Embodiments comprising an element composed of the treated zinc oxide include an electro-sensitive recording blank consisting of a dark paper or conductive carbon-containing plastic having a superimposed layer consisting of at least 50 % of zinc oxide as pigment material. Signal voltages applied thereto cause removal of the superimposed layer, revealing the dark paper or plastic in a desired pattern. Reference is made to the fluorescent properties of the zinc oxide materials. Specification 615,744 is referred to.
Patent GB-645175-A (GB)
Title: Improvements in or relating to magnetic circuits
IPC: H02K1/14
Filed: 1948-06-02
Abstract: 645,175. Cores for dynamo-electric machines. NAAMLOOZE VENNOOTSCHAP PHILIPS' GLOEILAMPENFABRIEKEN. June 2, 1948, No. 14924. Convention date, June 5, 1947. [Class 35] A core, for example, for use in hub dynamos for bicycles, is made of one or more sheetiron stampings 1 having tags 2 projecting from the periphery of the plate 1, said tags being folded lengthwise along a line 3 and bent over with respect to the plate, such that the longitudinal open edges 7 of the folded tags are located approximately on a surface of revolution 9. In this manner poles 6 are formed. The magnetic circuit is completed by introducing in a central recess 10 provided in plate 1 another similar core structure, the poles of which interfit with the poles 6. A coil is provided between the poles 6 and the cylindrical recess 10, and an annular permanent magnet may be arranged to surround the whole core structure. Fig. 2 shows, besides poles 6, a modified pole 15, the width of which constantly decreases towards its free end. The core co-operates with a fixed or rotary magnet.
Patent GB-168645-A (GB)
Title: Improvements in or relating to machines for shearing hedges, trees and the like
IPC: A01G3/047
Filed: 1920-06-02
Abstract: 168,645. Poppitt, H. June 2, 1920. Clippers with multiple teeth. - A machine for shearing hedges, trees, or the like of the type in which a number of radial blades on a rotating spindle S co-operate with a number of stationary blades, has the spindle 8 coned at each end to bear on balls carried by adjustable bearing cups 7 locked in adjusted position by nuts 9. Preferably five radial blades 2 cooperate with six blades 1. A bevel gear 14 is formed on the spindle 8 and meshes with a gear 15 carried in a bush 11 in the frame and adapted to be rotated by a hand or motor driving device.- A handle is fitted on the frame to permit the device to be moved about the tree.
Patent GB-155181-A (GB)
Title: Improvements in cutting toothed gears
IPC: B23F1/06
Filed: 1919-09-05
Abstract: 155,181. Lewis, F. M. Sept. 5, 1919. Gear-cutting; milling-cutters. -A machine for cutting spur and bevel gears has special tooth curve generating and indexing mechanism, is specially adapted for cutting arcuate teeth and may be arranged for cutting racks. The mechanism may be arranged as an attachment for existing machines. The blank a is driven by a worm wheel e mounted on a slide g and meshing with a worm f fitted with an indexing mechanism n and mounted on a slide h. The slides are actuated by blocks i engaging pins on a slide k adjustable in a transverse slot in a worm wheel l. Stops g, r limit the movement. The side k is set according to the difference between the base or pitch circle of the wheel to be cut and the pitch circle of the wheel c. A scale may be provided to facilitate this setting. The mechanism is protected from cuttings by guards p<1>. As applied to arcuate teeth, one set of flanks may be cut by a cutter o, Fig. 3, and the other by a cutter p, or both flanks may be cut by a cutter shaped as shown in Fig. 5. The internal diameter of the cutter o is equal to the external diameter of the cutter p. A rack and pinion or other equivalent may be substituted for the worm wheel e and worm f, and the indexing mechanism may be fitted to the blank mandrel. When cutting racks the cutter is set at a slight inclination to the work to enable the non-cutting teeth to clear. A similar inclined setting must be used when cutting wheels to mesh with such racks. Bevel-gears are arranged to roll on their base cones. Lathe and like carriers.-A form of carrier d is shown in Figs. 1 and 2.
Patent GB-345151-A (GB)
Title: Improvements in or relating to high pressure piping
IPC: F16L9/04
Filed: 1930-05-16
Abstract: 345,151. Hooped tubes. KRAUSS, R., 17, Mauritiusstrasse, Breslau, Germany. May 16, 1930, No. 15052. Convention date, Feb. 22. [Class 99 (ii).] In a hooped tube for high-pressure piping the hoops 2 are strengthened in the region of the seam or seams 3 of the tube 1 by thickening, hardening, &c. In the form shown in Fig. 2, hoops which have been eccentrically turned to produce a thickening 4 are used, while in a modification, Fig. 5, the hoops are formed with widenings 6 which may be of such a size that when the hoops are positioned upon the tube at intervals the seam will be covered along the whole of its length. Alternatively the hoops may be both thickened and widened. When the tubes are formed with more than two seams, say four, a pair of abutting hoops are used instead of a single one, each hoop being thickened on opposite sides, Fig. 12.
Patent GB-467298-A (GB)
Title: A process for the production of sulphur trioxide
IPC: C01B17/76
Filed: 1936-05-28
Abstract: The catalytic production of sulphur trioxide from sulphur dioxide and oxygen with yields of more than 98 per cent is effected under a pressure of at least 5 atmospheres and at a rate of gas passage materially in excess of that possible for like yields at pressures below 5 atmospheres.  The absorption of the product by means of strong sulphuric acid may also be effected under pressure.
Patent GB-1358071-A (GB)
Title: Display control apparatus
IPC: G09G1/10
Filed: 1971-05-15
Abstract: 1358071 Cathode-ray tube displays INTERNATIONAL COMPUTERS Ltd 12 May 1972 [15 May 1971] 15153/71 Heading H4T The Specification is concerned with drawing arcuate lines on the screen of a cathode-ray display tube (by appropriate X and Y deflection of the beam) with an accuracy such that the maximum difference in position of the chord actually traced and the true arcuate path is less than the spot resolution of the tube beam for each incremental deflection of the beam such incremental deflections specifying the radius of the arc in binary code form so that the maximum radial value for an arc is 2<SP>n</SP>-1 where n is the maximum capacity of a binary register. This is, notionally, taken as 2<SP>n</SP> and it is shown that for the maximum, expressible, radius the maximum incremental angle of beam deflection # (see Fig. 1) may be assumed to be 2(2)¢/2n/2. From this incremental deflections are derived (in terms of the values in the registers) and assuming the arc is to be drawn relative to an initial angle #, the start co-ordinates X = R cos # and Y = R sin # are calculated and held in respective binary position registers and by "right-shifting" the values in the appropriate registers by half its capacity n( = 2n/2) and by n + 1 places ( = 2<SP>n+1</SP>) the actual incremental values #X and #Y may be obtained. These are then employed for beam deflection and additionally are added to the values standing in the register to provide the "start position" for the next incremental deflection. Two schematic arrangements for carrying out the arrangement are described with reference to Figs. 2 and 3 (neither shown) one of which includes means responsive to the end of a quadrant for changing the incrementing or decrementing of the beam position register.
Patent GB-904918-A (GB)
Title: Improvements in or relating to the crimping of nylon yarns
IPC: D06M11/05
Filed: 1961-04-26
Abstract: 904,918. Crimping yarns. ALLIED CHEMICAL CORPORATION. April 26, 1961 [May 4, 1960], No. 15159/61. Class 120 (3). In a method of compression-crimping one or more ends of drawn nylon - 6 multifilamentary yarn of denier 1000-5000 and filament count of 50-250, the yarn carrying a lubricant finish is contacted with dry steam before it is forced into a crimping zone. The steam is at or just above its saturation temperature under the pressure subsisting and is maintained just before it enters the steaming zone at a higher temperature of 103C-130C and at a superatmospheric pressure constant within two ounces per square inch. The temperature of the steam both before it enters the steaming zone and in said zone is maintained constant within 1  C. After the yarn has left the steaming zone it is fed, with a moisture content of 2-3% by weight, into the crimping zone under conditions such that it receives no further supply of heat and is acted on by no other setting-agent and when in the main body of the crimping zone is at a temperature between 60 and 90 C. and is at a higher temperature at the entrance to the crimping zone than in the main body.
Patent GB-1123787-A (GB)
Title: Improvements relating to spraying devices for use in machines for washing kitchen and table-ware
IPC: A47L15/20
Filed: 1966-04-05
Abstract: 1,123,787. Dishwashing machines. G. BORGHI. 5 April, 1966 [5 April, 1965], No. 15194/66. Heading A4F. [Also in Division B2] A spraying device for use in a dishwashing machine comprises a tube 2 having a plurality of spray nozzles 5 and rotatable about an axis parallel :to or coincident with its own axis by a single phase synchronous electric motor 9 having permanent magnet excitation, the direction of rotation being reversed when the tube 2 reaches predetermined limits of rotation in two opposite directions, e.g. when a projection 11 on the tube 2 engages either of two fixed stops 12 and 13. The nozzles 5 are provided in one or more rows in a substantially flat surface extending axially of the tube 2.
Patent GB-420369-A (GB)
Title: Improvements in or relating to road making and repairing appliances
IPC: E02F3/76
Filed: 1933-05-25
Abstract: 420,369. Road - grading machines. JOHNSTON, J. T. M., and JOHNSTON BROS. (CONTRACTORS), Ltd., 35, Crutched Friars, London. May 25, 1933, No. 15198. [Class 107] A road making or repairing machine comprises a vehicle 10, Figs. 1 and 2, carrying roadmaking material, a yoke-shaped attachment 11 secured to the vehicle, and a grading or dressing device, incorporating one or more blades 25, secured to or formed integral with the rearward part of the yoke ; the road material is fed through a space 14 between the back of the vehicle and the rear end of the yoke. In the construction shown, the grading device is mounted directly on the yoke and comprises frame members 15, 16, carrying vertical guides 17, 18, for a blade carrier 19. The latter is adjustably supported by links 20 depending from rotatable cranks 21, and carries a rotatable ring 23 which is connected by arms 24 to the blade 25. Angular adjustment of the blade is effected by toothed gearing 26, 27, actuated by a hand-wheel 28, and vertical adjustment is effected by hand-wheels 22 connected to the cranks 21. The road material may be discharged from the vehicle by mechanical unloading mechanism, such as a movable platform. In modifications, the grading device, which may also be used for surface planing comprises a separate wheeled unit which is coupled to the rear end of the yoke. The overall width of the blade may be made adjustable by constructing the blade in three overlapping sections 33, 34, 35, Fig. 7, and by interconnecting the overlapping ends by screw-threaded connectors 36 engaging in brackets 37. Alternatively, the overlapping ends are interconnected by a bolt- and-slot connection, the slots being slightly wider than the diameter of the bolts so that the lateral sections may tilt slightly to conform with the camber of the road. In a further blade construction, the blade is mounted for vertical adjustment, and by means of a bolt- and-slot connection, in a holder.
Patent GB-312491-A (GB)
Title: Improvements in or relating to brick making apparatus
IPC: B28B13/02
Filed: 1928-05-24
Abstract: 312,491. Clayton, Goodfellow, & Co., Ltd., and Whittaker, T. May 24, 1928. Combined moulding and repressing machines. -In machines wherein the plastic material is successively moulded and repressed in a pair of mould boxes co-operating with upper and lower pistons, the lower repressing piston is retained in its uppermost position until the upper repressing piston makes contact with the upper surface of the green brick. As shown, two pairs of moulds D, D' are provided, furnished with moulding and repressing pistons E, E<1> which co-operate with upper pistons B, B<1>. The repressing pistons E' are independent of the crosshead F' carrying the pistons E and are held up by counterweighted levers H, or springs. The pistons B, B', E, E<1> respectively are heated by independent steam supplies. Steam passes to the pistons B, B' from a main pipe N through connections N', N<2> and exhausts through connections O<1>, O<2>; a pipe P conveys steam from the pipe N to the pistons E, E<1> through pipes L<2>, L<1>.
Patent GB-637455-A (GB)
Title: Improvements in magnetrons
IPC: H01J25/56
Filed: 1947-06-10
Abstract: 637,455. Magnetrons. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. June 10, 1947, No. 15219. Convention date, July 25, 1946. [Class 39 (i)] A magnetron comprising two groups of imbricated resonant segments fixed to two rigid parallel plates, is tunable by moving the plates towards or away from one another while preserving their parallelism. The plates A, B carrying the preferably triangular shaped segments L, are supported on two flexible outwardly curving rods S. The rods are fixed at one end to the bottom of the envelope at F, and at the other end to a screw T secured at its centre to a flexible wall of the envelope m. The screw T is movable in or out by adjustment of the nut E.
Patent GB-355243-A (GB)
Title: Improvements in and connected with buffer boxes for water meters and the like
IPC: G01F15/00
Filed: 1930-05-19
Abstract: 355,243. Liquid meters. PEEBLES, J., Waterworks Cottage, Dalrymple, Ayrshire. May 19, 1930, No. 15274. [Class 69 (ii).] At each extremity of its travel, the lever 9a for reversing the flow of liquid through a meter engages a ram 1, which acts to expel fluid from a cylinder 2 through restricted passages 3, 3a. Each cylinder is in communication with an air vessel 6 and also through passages 3, 3b, 3c, with a source of fluid supply; the corresponding port 3c being masked by a plug P to decrease the area available for escape of fluid during impact. The weight 8 may be of circular form and fitted with a resilient tyre 10 which is partially rotated after each impact by ratchet and pawl mechanism 16. Resilient plugs 12 are provided on each ram 1. According to the Provisional Specification the vessel 6 is provided with an air-cock.
Patent GB-221021-A (GB)
Title: Improvements in and relating to headlamps for vehicles
IPC: B60Q1/124
Filed: 1923-06-12
Abstract: 221,021. Calkins, J. M. June 12, 1923. Vehicle lamps, directing ; anti - vibration devices. - In vehicle lamp-directing mechanism of the kind in which the lamps are caused to swing in a horizontal plane with the steering-gear and in a vertical plane by hand-operated means, an anti-vibration mounting for the lamps is incorporated in the directing mechanism. Each lamp 54 is mounted on a member 55 pivoted at 57 to a casting 56 carried by a tube 58 which is rotatably mounted in a standard 51 clamped to a cross-bar 52 at the front of the vehicle. A nut 61 is secured to the lower end of the tube 58 and is provided with an arm 62, Fig. 1, connected by a link 64 to an arm 63 which is caused to turn with the steering-wheel. The two lamps are interconnected for simultaneous movement in a horizontal plane by a cross-bar 66 pivotally connected at each end to the castings 56. Movement of the lamps in a vertical plane is controlled by a screw handle on the dashboard operatively connected by bell-cranks and levers to a pivoted member 68, Fig. 4, one end of which terminates in a ball 75 adapted to move substantially vertically in the tube 58. The ball 75 is disposed between two cylindrical members 76, 77 the upper of which is secured by a pin 79<1> within a vertically slidable tube 78, the ends of which are closed by screw plugs 90, 95. Extending through the plug 90 is a rod 79 connected to the pivoted member 55 on which the lamp is mounted and terminating in a ball 80 which bears against a piston 91 between which and the cylindrical member 76 is disposed an anti-vibration spring 92, so that upward movement of the ball 75 is transmitted to the lamp through the spring 92. Additional springs 96, 93 are disposed respectively between the cylindrical member 77 and plug 95 and between the plug 95 and a plug 94 at the lower end of the tube 58.
Patent GB-972652-A (GB)
Title: Improvements in or relating to pipe cutters
Inventor: BURGESS-ALLEN PHILIP
IPC: B23D21/02
Filed: 1960-05-02
Abstract: 972,652. Shearing. ALLEN TOOL & ENGINEERING Ltd. March 2, 1961 [May 2, 1960], No. 15332/60. Heading B3W. A tool for shaping a first pipe end to seat on the exterior of a second pipe comprises a mandrel which has a radially projecting part of a diameter equal to the external diameter of the second pipe and a length less than the internal diameter of the pipe to be cut so as to be receivable in the mouth of that pipe, and a hollow punch which is movable along the mandrel and is a sliding fit on the projecting portion and which has a recess of a diameter equal to the external diameter of the first pipe end. The mandrel 2 is received in an aperture 6 in a base 1 and is prevented from turning by a pin 7. The stem 8 of the mandrel is equal in diameter to the second pipe to which a first pipe end is to be attached and is cut away to leave a projecting portion 9. A hollow punch 3 slides over the mandrel and is forced down by a lever 4 against a spring 10. The leading edge of the punch has a recess 16 of a radius equal to the radius of the first pipe end. The first pipe is presented to the portion 9 and the punch operated to shear through the top half of the pipe which is then turned through 180 degrees and the operation repeated to remove the remaining half of the pipe. There may be additional recesses 16a of different diameters in the punch to suit first pipe ends of various sizes.
Patent GB-632147-A (GB)
Title: Improvements in the processes and apparatus for drawing out continuous flexible products of great length
IPC: D07B7/02
Filed: 1945-06-16
Abstract: 632,147. Coiling-machines. POURTIER, G. June 16, 1945, No. 15358. Convention date, March 29, 1943. [Class 78 (v)] [Also in Group XXXVI] In the process of drawing out continuous flexible products of great length, the product is wound onto and off a rotary drum 4, Fig. 6, and the coil formed thereon is continually shifted by the application of force to the coil substantially throughout the entire circle. Figs. 5; 6. The wire straight from the wire making machine is coiled round the rotating capstan 4 and before passing on to a bobbin. Sliding shoes 5, separated from one another by packing 6 and covering nearly the whole of the circumference of the drum 4, are impelled by pairs of fingers 8 which are made to pivot about spindles 9 fixed to drum 4, by arms 13 at the end of which are rollers 14 which run over the helix-shaped surface of the stationary cam 3. Springs keep the fingers in position. Rotation of the drum causes the slippers to rotate and also, as they rotate, to continuously urge the coil along. In the alternative form of Fig. 7 the capstan is formed of a circular series of shoes 17 upon which the wire is wound. The shoes are secured to rotating wheel 15 by notches 16 and run upon rollers 19 which work in helicoidal grooves upon stationary cam 3. The helix has a sharp return " run " so that the wire coil is continuously pressed in one direction.
Patent GB-282294-A (GB)
Title: Improvements in looms for weaving pile fabrics
IPC: D03D39/02
Filed: 1927-06-09
Abstract: 282,294. Britton, R. June 9, 1927. Reeds.-In looms for weaving pile fabrics of the kind in which pile warp threads are wound spirally round longitudinal wires by means associated with the lay, the reed dents h have forward projections i bent, laterally for engagement with the pile warps, which are guided against the dents h by auxiliary dents j staggered in relation to the dents h.
Patent GB-977062-A (GB)
Title: Improvements in or relating to apparatus for blast treating articles
IPC: B24C3/28
Filed: 1960-05-03
Abstract: 977,062. Blasting. J. F. THOMSON. May 2, 1961 [May 3, 1960], No. 15475/60. Heading B3D. Apparatus for blast treating articles, e.g. of synthetic plastic, metal or ceramic material, e.g. for cleaning or removing flash and/or surface etching, comprises an enclosed cabinet having means for supporting and rotating a detachable perforated drum about an axis inclined to a vertical plane, an access door in the cabinet for insertion and removal of the drum, and means for projecting treatment material into the drum during its rotation, the drum having at its upper end a restricted opening through which the treatment material is arranged to be projected forcibly from a blast device which is arranged to be moved out of the way to permit insertion and removal into and from the cabinet of the drum. An enclosed cabinet 1 mounted upon a base 2 has its front constituted by a hinged door 3 provided with an inspection window 5. An electric motor-driving unit 6 incorporating reduction gearing is connected to an inclined shaft 7 supported in a bearing 8 and having secured on it a spider 9 with spring clips 10 to receive and hold a hexagonal drum 11 of perforated metal having at its upper end a restricted opening 12 through which articles are loaded into and unloaded from the drum and through which treatment material is projected from a blast gun 13. The latter is supported by a telescopic arm 14 pivotally mounted at 15 in a bracket 16 secured to the cabinet roof so that the gun can be swung to one side to permit insertion or removal of the drum. The gun is connected by a flexible pipe 17 to a control valve and thence to a source of compressed air, and is also connected by a flexible pipe 19 to a mixer box 20 at the base of a hopper 21 which collects treatment material passing through the perforations of the drum or escaping therefrom. Dust collecting or extracting means may be provided. A timer unit is provided which after a predetermined interval stops the drum motor and/or stops the projection of treatment material as by closing an air valve. The treatment material may be pellets of plastic polymer, dried fruit stones or aluminium oxide.