baber/WOPTO huggingface dataset:
Patent GB-1420061-A (GB)
Title: Sputtering method and apparatus
IPC: H01J37/34
Filed: 1972-09-04
Abstract: 1420061 Sputtering apparatus. TELIC CORP 4 Sept 1972 [7 Sept 1971 18 May 1972] 40863/72 Heading C7F [Also in Division H1] A method of sputtering material on to a target 31 comprises the steps of: supporting an electrode assembly 14, 16 and said target in a working gas environment; applying electrical voltage to said electrode assembly; and forming a magnetic field 23, which field defines, together with said electrode assembly, one or more traps for containing substantially all electrons emitted by said electrode assembly and having sufficient energy to ionize said working gas; said electrode assembly including at least one electrode comprising the material which is to be sputtered on to said target. The electron traps have the effect of retaining electrons near the target surface until the bulk of their energy has been expanded in ionizing collisions, thus reducing "end losses" and producing a uniform plasma over the target area. In the arrangement shown the cathode 14 is a spool-shaped post and the target 31 is external thereof. The magnetic field is supplied by a coil 20 inside the cathode and a coil 21 surrounding the chamber 10 which is connected through a pipe 29 to a vacuum pump and contains a gas such as argon. The cathode 14 and anode 16 are watercooled. The cathode 14 may be made of stainless steel plated with chromium to be sputtered on to the target 31. The electrode assembly 14, 16 is described in detail Fig. 2, (not shown). (See Specification 1420062). An alternative construction Figs. 3a to 3d (not shown) utilizes a hollow cathode with an internal target. The power source 27 is D.C. Alternative arrangements Figs. 4, 7 and 10, (not shown), some having planar semicircular, annular, or disc electrodes, are operated with a r.f. source. A number of alternative single and double post and hollow cathodes are described Figs. 5, 6 8 and 9, (not shown) with different magnetic field configurations providing both single and multiple electron traps.
Patent GB-898425-A (GB)
Title: Shift register
Inventor: BREWSTER ARTHUR EDWARD
IPC: G11C19/28
Filed: 1960-11-29
Abstract: 898,425. Shift registers. STANDARD TELEPHONES & CABLES Ltd. Nov. 29, 1960, No. 41002/60. Class 106 (1). A shift register includes means for supplying pulses of alternating polarity in a number of phases to a series of groups of interconnected two-state devices. As described, each two-state device consists of two tunnel diodes T 1 , T 2 , Fig. 2, connected in series across an applied voltage e and having a trigger current it applied to their common terminal CT. The characteristics of the diodes (Fig. 1, not shown) are similar, and allow of two degrees of impedance for a given current, so that a small positive current i t  causes T @  to adopt the higher impedance, " mark " condition, whilst a negative current causes T 2  to adopt the lower impedance, " space " condition. Fig. 3 shows a shift register circuit with groups of four stages ABCD, EFGH, each group being devoted to the storage and transfer of one signal digit, and the groups being connected in parallel, A to E &c. An oscillator OSC generating a sinusoidal or square waveform is coupled to a transformer which has secondary windings S, Sq, arranged in phase quadrature, with S connected across stages A, C and Sq across stages B, D. The polarities are such that there is a phase lag of #/2 at the inputs of A and B. Suppose that a positive-going edge, derived from winding S, is at A. C will be reverse biased causing the full clock voltage to appear across stage A. A positive or negative current it, representing input information, controlled by resistor Ra causes stage A to adopt the " mark " or " space " condition. At phase angle #/2 the positive-going pulse from winding Sq to stage B, together with a current it, via Rb, causes B to adopt the condition A previously held. At phase angle # the output from S becomes zero, stages A, C are inactive and the digit is stored in B. The negative-going half-cycle from winding S causes C to adopt the condition, stage A now being reverse biased, and at phase angle 3#/2 the reverse output from Sq turns on D and cuts off B, so that the digit is now stored on D ready for transfer to stage E of the second digit group. In general, any number x of secondary windings may be provided with a corresponding number 2x of stages in each digit group.
Patent GB-1157818-A (GB)
Title: Nozzle Extension for Continuous Casting
IPC: B22D41/50
Filed: 1966-09-14
Abstract: 1,157,818. Discharging molten metals. UNITED STATES STEEL CORP. 14 Sept., 1966 [23 Sept., 1965], No. 41045/66. Heading F4B. In apparatus for the continuous casting of steel from a ladle 10 into a water cooled cylindrical mould 15 a nozzle extension 20 comprises a cylindrical refractory tube 21 of larger diameter than the bore of the ladle nozzle 12, a refractory tip 22 having an inwardly tapering concave section 23 and an outlet orifice 24 held in place by a collar 34, and a refractory disc 25 including a seating part 26 for the ladle nozzle 12. The tube 21 and disc 25 are surrounded by a metal casing 30, granular refractory material 37 being packed therebetween. Refractory sealing material 29 may be provided between the nozzle 12 and the seating 26 to prevent air entering. The nozzle extension 20 is supported by trunnions 46 on ring 32 in a yoke 45 of an attachment device 40 including a fulcrum mounting 43 about which the nozzle extension 20 can be raised and lowered on lever arm 41 by turnbuckle 44. In a second embodiment the inwardly tapering section 23 is convex.
Patent GB-1040917-A (GB)
Title: Improvements relating to filters
Inventor: GIST JOHN FREDERICK
IPC: B01D29/075
Filed: 1964-10-09
Abstract: A filter element comprising two porous annular discs sealingly fitted is formed by inserting a smaller domed disc into a larger disc with a peripheral flange, and flattening, so that the peripheral edge of the smaller disc forms an interference fit with the flange and the smaller disc seats against a step or shoulder on the inner side of the flange.  The discs may be sintered bronze, stainless steel or porous plastic, and may have pips or pegs for internal mutual support against axial pressure.  The element is intended to be mounted on a hollow spindle which has slots corresponding to the hollow interior of the element.
Patent GB-925732-A (GB)
Title: Textured multilobal filament yarn
IPC: D02J1/22
Filed: 1961-11-17
Abstract: Twisted or untwisted yarn is crimped and bulked by a combination of hot-stretching and passage between intermeshing toothed wheels so that constituent, continuous thermoplastic filaments having a multilobal cross-section assume sinusoidal deformations the apices of which are located in haphazard relationship with respect to each other at any point along the length of the yarn and the lobes of the filaments are randomly bent to varying extent along the length thereof to distort their normal <PICT:0925732/IV(a)/1> symmetrical disposition.  The filaments may be of polyamides, polycarbonates, polyesters, polyolefins including polyethylene and polypropylene, polyurethanes, vinyl and/or acrylic polymers or copolymers, and/or mixtures thereof, particular forms of which are specified.  The lobes may be of different length.  Yarns of different composition and denier may be doubled before treatment.  As shown, a trilobal yarn 10 of incompletely oriented filaments supplied from a wound package 11 on a bobbin 12 (or directly from a spinning machine) passes around a snubbing bar 13 (acting only as a guide) through guide 14 and feed rollers 15, around a heated draw pin 16, whereat alternation of the yarn is concentrated, and several spaced turns between cold or cooled, cylindrical and/or conical crimping wheels 17, 18, and around a fixed spacer bar or rotatable roller 25, and the treated, potentially crimpable yarn is taken up by a ring twisting assembly 27.  The crimp &c. is fully developed in the yarn, before or after weaving, knitting or tufting into a fabric or carpet, e.g. by wet or dry heat treatment in relaxed condition.
Patent GB-889134-A (GB)
Title: Improvements in or relating to beverage cooling apparatus
Inventor: BERWICK WILLIAM RICHARD
IPC: F25D31/00
Filed: 1959-12-04
Abstract: 889,134. Refrigerating liquids. GASKELL & CHAMBERS Ltd., [trading as NON-DRIP MEASURE CO.]. Nov. 30, 1960 [Dec. 4, 1959], No. 41291/59. Class 29 In apparatus for chilling beverages by passing them through one or more heat exchangers 12 immersed in coolant, e.g. water, contained in a vessel 1 the wall of which is cooled by a refrigerant evaporator 9, the coolant is continuously circulated over the cooled wall and the heat exchanger. As shown the coolant is withdrawn from vessel 1 through pipe 16 by pump 15 which supplies it to pipe 17, the outlet end of which extends circumferentially of the vessel wall to circulate the coolant. The refrigerating system 6 is thermostatically controlled by the temperature of the coolant. According to the Provisional Specification, the heat exchanger may comprise a helical passage defined between two concentric cylindrical shells, or passages formed between plates by grooves in their mating faces.
Patent GB-1374012-A (GB)
Title: Enclosed insulating gas filled electric high tension line
IPC: H02G15/26
Filed: 1972-09-06
Abstract: 1374012 Telescopic expansion Joints BBC BROWN BOVERI & CO Ltd 6 Sept 1972 [8 Sept 1971 24 Sept 1971] 41378/72 Heading F2G [Also in Division H2] An enclosed insulating gas filled electric high tension line, in which the conductor 5, 6 is supported by insulators 8 inside a tubular casing 1, 2, and is subdivided into sections by expansion compensators each of which comprises a housing 9 in which at least one section of casing 1 is slidably received is gas sealed by means of rolling annular diaphragm 10. In the embodiment of Fig. 2, both casings 1, 2 are so slidably connected to housing 9, by means of tubes 3, 4 which are secured to their ends, and which also carry insulators 8 secured thereto by screw on rings 3a, 4a. Housing extensions 9a, which are bolted like flanges to housing 9 enclose tubes 3, 4, so that they are mutually movable, rolling annular diaphragm 10 providing a movable seal therebetween, being itself clamped gas tightly between 3, 3a and 4, 4a on one side and 9, 9a on the other. Extensional movement is limited by flange-like stop elements 12 and bolt elements 13, 14. The conductor portions 5, 6 are interconnected by sliding connectors 5a, 6a, and flexible current connector band 7. Since the line must be evacuated before insertion of the insulating gas, preferably SF 6  at 4 atmospheres, which would cause distortion, by external pressure, of diaphragms 10, tubes 15 may be introduced into the gap left by diaphragm 10 (not shown, see Fig. 2a) by means of threaded bolts 16 extending through the housing, which move arms 15a. Closure caps 18 prevent strain in the bore 9c when the line is filled with gas, which is introduced via aperture 11 on lid 9b.
Patent GB-946544-A (GB)
Title: Improvements in electric discharge lamps
IPC: H01J61/34
Filed: 1959-12-08
Abstract: 946,544. Discharge lamps. PHILIPS ELECTRICAL INDUSTRIES Ltd. Dec. 8, 1959 [Dec. 11, 1958], No. 41694/59. Heading H1D. A fluorescent discharge lamp comprises a hermetically sealed bulb 2 within which is mounted a high pressure metal vapour discharge tube 7 substantially surrounded by a cylindrical glass screen 10, wherein a surface of the screen is provided with one or more layers of luminescent material, the screen is spaced from the discharge tube and from the bulb so as to allow gas within the bulb to circulate between the tube and the screen to cool the screen, and a portion of the bulb 2 is mirrored internally or externally above the line PQ to reflect light from the screen. The tube 7 can contain auxiliary electrodes and a fitting 11 can be provided to determine the limits of radiated light.
Patent GB-899209-A (GB)
Title: Improvements in or relating to pressure responsive devices and their manufacture
Inventor: BRADSPIES ROBERT WILLIAM
IPC: G01L7/04
Filed: 1960-12-05
Abstract: 899,209. Bourdon tubes. GIANNINI CONTROLS CORPORATION. Dec. 5, 1960, No. 41775/60. Class 106 (2). A Bourdon tube, the curvature of which increases with increasing internal pressure, has non-circular cross-section with the major axis lying in the general plane of curvature of the longitudinal tube axis. As shown in Figs. 1 and 2, the sealed ends 20, 21 of tube 10 are linked to a pointer 24. The tube may be evacuated and sealed off, or may communicate via a passage 15 with a source of pressure. In the helical arrangement of Fig. 4 an arm 46 carried on one end of the tube extends axially towards the other end for linkage with a pointer. A spiral tube of circular cross-section may be filled with salt or sand (to prevent buckling) and flattened between plates to produce a spiral tube of oval cross-section. Circular or spiral tubing may also be formed by welding the edges of a pair of flat resilient annular or spiral strips which are then placed between a pair of die plates corresponding to the required cross-section (Fig. 13) and then introducing a fluid under pressure between the strips via an aperture 61. The space between the welded strips expands to fill the space between the dies.
Patent GB-1285999-A (GB)
Title: Recorder and reproducer system
Inventor: JOHNSON PETER ROOSEVELT
IPC: G11B7/12
Filed: 1969-08-21
Abstract: 1285999 Optical recording and playback P R JOHNSON K W MELCHIOR and P L HANSON Jnr 21 Aug 1969 [21 Aug 1968] 41852/69 Heading G5R  A light beam is modulated according to information to be recorded on an energy-absorbing record medium 50 having a guide groove 51 which is tracked by a stylus 48 secured to an objective lens 47 through which the modulated light beam is directed on to a land 52 between adjacent grooves 51. As shown the light beam is produced by a scanning laser 40 and passes through a lens mosaic 46 so that the recording is made by erosion in parallel tracks across or along the land 52. The laser may comprise a Fabry- Perot resonant cavity and a coded shutter array or other scanning means, Figs. 7, 7a and 11 to 13a (not shown). In the case of a disc record 50, constant tracking speed at different radii is maintained under the control of a series of equally spaced slots in the land 52. The same objective lens 47 is used for playback by means of reflected light.
Patent GB-1191956-A (GB)
Title: Sulphur-Containing Polybenzimidazoles
Inventor: KORSHAK VASILY VLADIMIROVICH
IPC: C08G73/18
Filed: 1968-09-05
Abstract: 1,191,956. Sulphur-containing polybenzimidazoles. AKADEMIA NAUK SSSR, SIBIRSKOE OTDELENIE, BURYATSKY FILIAL. 5 Sept., 1968, No. 42299/68. Heading C3R. The invention comprises polybenzimidazoles with repeating units of formula and m is 2, 4, 6, 8 or 10. The polymers are obtained by reacting a tetramine of formula with a sulphur-containing dicarboxylic acid or ester of formula where X is -OH, -OCH 3  or -OC 6 H 5 . The reaction is carried in an inert gas stream at 200‹ to 280‹ C. In examples polymers are obtained by heating in nitrogen mixtures of 3,3<SP>1</SP>- diaminobenzidine with dithiovaleric dicarboxylic acid, thiodienanthic dicarboxylic acid, thiodipelargonic dicarboxylic acid and sulphodivaleric dicarboxylic acid; mixtures of tetramine diphenyl oxide with thiodivaleric dicarboxylic acid, dithiodienanthic dicarboxylic acid, disulphodivaleric dicarboxylic acid and disulphodienanthic dicarboxylic acid; mixtures of tetramine diphenylmethane with thiodivaleric dicarboxylic acid, dithiodipelargonic dicarboxylic acid and sulphodienanthic dicarboxylic acid; a mixture of 3,3<SP>1</SP>-diaminobenzidine, tetramine diphenylmethane, thiodivaleric acid, and thiodienanthic acid; a mixture of tetramine diphenyl oxide, tetramine diphenylmethane and dithiodivaleric dicarboxylic acid; a mixture of tetramine diphenyl oxide, dithiodivaleric and dithiodienanthic dicarboxylic acids; a mixture of tetramine diphenyl, dithiodivaleric and dithiodiundecanoic dicarboxylic acids; and a mixture of tetramine diphenyl oxide, tetramine diphenylmethane, sulphodivaleric and sulphodienanthic dicarboxylic acids.
Patent GB-1524420-A (GB)
Title: Multicontact sealed electromagnetic coordinate selection device
IPC: H01H67/30
Filed: 1976-10-13
Abstract: 1524420 Co-ordinate electric switches NIPPON TELEGRAPH & TELEPHONE PUBLIC CORP and NIPPON ELECTRIC CO Ltd 13 Oct 1976 [23 Oct 1975 12 Nov 1975 (2)] 42602/76 Heading H1N A multicontact sealed electromagnetic coordinate selector switch has an ordinate line of holes in a metal plate 31 in which are mounted stationary contact members 32 and movable contact terminal supports 34 which carry a common spring member 37 cut away to allow movement of contacts 36 into engagement with fixed contacts (32a). Co-ordinate coils 43, 44 surround cones 42 which may extend into the ends of member 32 or alternatively (Figs. 5, 25, not shown) act as fixed contacts. Covers 38 are seated to the plate 31 and flux return members such as shown at 41 may be provided. The movable contact supports 34 may also be at the centre of each row as well as the ends (Figs. 11, 15 and 22, not shown) and the supports 34 and members are insulated from the plate 31 by glass seals and may be connected to printed circuits insulatedly mounted on substrates such as shown at 40.
Patent GB-1028984-A (GB)
Title: Toothbrush with pneumatic feed of dentifrice to the bristles
IPC: A46B11/00
Filed: 1964-10-22
Abstract: 1,028,984. Reservoir toothbrushes. R. SAUBAL-BAYARD and J. LOUPIAC. Oct. 22, 1964 [Nov. 13, 1963], No. 43103/64. Heading A4K. In a reservoir toothbrush, a cylinder 10 is operated as a reciprocating air pump, to deliver dentifrice from body 1 to the brush head, by covering the rear hole with the finger during the inward stroke and uncovering it during the outward stroke. The body 1 may be refillable or contain a replaceable cartridge. The brush head 7 may be screwed or force-fitted to the body and may have means to close the delivery duct on rotation of the head. A force piston 15 may be provided.
Patent GB-1128466-A (GB)
Title: Electromagnet
Inventor: ZHEZHMER BORIS JAKOVLEVICH
IPC: H01H50/24
Filed: 1965-10-12
Abstract: 1,128,466. Electromagnets. VSESOJUZNY NAUCHNO - ISSLEDOVATELSKY INSTITUT ELEKTROMEKHANIKI. 12 Oct., 1965, No. 43172/65. Heading H1P. An operative electromagnet comprises a core, 1, surrounded by a coil 3 and having pole shoes 4, 5 at right angles thereto, and a Z-shaped armature 2 pivoted symmetrically on a shaft 6 normal to the core, with its central member of box section enclosing the core and coil (Fig. 2, not shown) and its end members overlapping the pole shoes. The magnetic circuit thus has a figure of 8 profile when projected on a plane normal to the rotational axis of the armature. The pole faces may be angled obliquely to the flux axis (Fig. 3, not shown).
Patent GB-1483986-A (GB)
Title: Polyetheresters which contain hydroxyl groups and the use thereof in the production of flame-resistant synthetic resins
IPC: C08G63/68
Filed: 1975-10-22
Abstract: 1483986 Polyetheresters ; polyurethanes BAYER AG 22 Oct 1975 [24 Oct 1974] 43315/75 Heading C3R [Also in Division B5] A hydroxyl group-containing polyetherester having an acid number of from 0 to 5 and a hydroxyl number of from 100 to 300 is derived from (a) a bis-hydroxyalkyl ether of a halogenated bisphenol-A of the formula in which n is 0 or 1, R 1 -R 6  are hydrogen or C 1-4  alkyl and R 7 -R 10  are hydrogen, C 1-4  alkyl or halogen, provided that at least one group is halogen, (b) a diol of the formula in which X 1 -X 8  are hydrogen or C 1-4  alkyl, A is oxygen or sulphur and n is 1-10 and (c) a dicarboxylic acid. The polyetherester may be prepared by adding an alkylene oxide to a solution of the bisphenol in the diol thus alkoxylating the phenolic hydroxyl groups and then reacting with the dicarboxylic acid. The examples describe preparing polyetheresters from (a) bis-#-hydroxyethyl tetrabromobisphenol-A, (b) di- or tri-ethylene glycol, (c) tetrahydrophthalic acid or adipic acid, optionally with maleic anhydride and (d) optionally polyethylene glycol of molecular weight 400. The acid number of the polyetherester may be reduced to zero by reaction with ethylene oxide. Polyurethanes may be prepared from the polyetheresters, Examples 7, 8 and 9 describing the preparation of foams.
Patent GB-928005-A (GB)
Title: Cylindrical packages
Inventor: RAAMAT ERIC
IPC: B65D83/02
Filed: 1960-12-16
Abstract: 928,005. Packages. SUPER PACK VENDING Ltd. Dec. 16, 1960, No. 43324/60. Class 94(1). A cylindrical container for use in a gravity feed dispensing machine comprises a rigid cardboard tube 15 totally enclosed in plastics (polyethylene) film 16, portions 17 of which are heat sealed over the ends of the tube.
Patent GB-1273437-A (GB)
Title: Method and circuit arrangement for the tangential control of a working tool
IPC: G05B19/31
Filed: 1969-09-02
Abstract: 1,273,437. Programmed control of machine tools. LICENTIA PATENT-VERWALTUNGS G.m.b.H. Sept. 2, 1969 [Sept. 4, 1968], No. 43424/69. Heading G3N. A tool, having a sharp edge, is positioned by a numerical control system employing an interpolator, a digital-to-analogue converter and closed-loop servos with speed feedback which is modified so as to maintain the edge normal to the tangent of the outline being machined. Sine-cosine potentiometers 40, 41 are mounted on a toolcarrier for rotation about the Z-axis and supplied with a voltage, representative of the desired speed along the X or Y axis respectively, and the slider potentials nx sin #, -ny cos # applied through resistors 42, 43 to an operational amplifier 45. The cummation output of the amplifier 45, through an amplifier 46, adjusts the tool-holder 49 by a motor 47 and a gear 48 until the sum falls to zero and the tool edge is normal to the outline tangent. 1,273,441.Automatic voltage control. MULLARD Ltd. April 29, 1969, No.21731/69. Heading G3R. [Also in Division H3] In the operation of a pulse generator, switches 6, preferably a thyristor and 9 are closed simultaneously, switch 6 discharging a pulse forming network (PFN) 2 through a load 5, and switch 9 allowing current to pass through a transformer 10 so that a capacitor 7 is charged through the secondary winding and a diode 13 which tends to reverse bias a diode 3 so isolating the PFN and switch 6 from the capacitor 7; when switch 9 is reopened capacitor 7 charges PFN2 through the diode 3 and the secondary winding of transformer 10 in preparation for the next cycle. Thyristor 6 and switch 9 a transistor, are controlled by a monostable multi-vibrator 16, 18 a pulse to the gate of thyristor 6 being differentiated via transistor 25 to provide a triggering voltage spike. The height of the generated pulses is stabilized by sampling the voltage across capacitor 7 via a lead 15, and comparing it in a transistor 19 with a reference voltage across a Zener diode 20. The output from transistor 19 controls the length of the pulse from multi-vibrator 16, 18 and hence the voltage stored in capacitor 7. A capacitor 25a may be inserted so that the stabilizer is sensitive only to long term variations in pulse height. The height may be varied by a variable resistor 21.
Patent GB-1139884-A (GB)
Title: Computing weighing systems
IPC: G01G19/40
Filed: 1965-12-31
Abstract: 1,139,884. Multiplying apparatus. HOBART MFG. CO. 31 Dec., 1965 [31 Dec., 1964], No. 43506/68. Divided out of 1,139,881. Heading G4A. The description is identical to that contained in the parent Specification but the claims relate to the multiplication of the weight by the unit price.