baber/WOPTO huggingface dataset:
Patent GB-752618-A (GB)
Title: A method for the production of sliding fasteners
IPC: B21D53/50
Filed: 1954-08-30
Abstract: 752,618. Making sliding-clasp fasteners. HANSEN, H. Aug. 30, 1954, No. 25172/54. Classes 83 (2) and 83 (4). Die-rolling.-A metal strip 2, Figs. 4, 5, for subsequent division into sliding fastener members is rolled in two directions at right-angles in a single rolling operation to form incisions 5 at the dividing line and to form the recesses 3 and noses 4. The formed strip may be given electrolytic surface treatment and is subsequently punched to form oblong holes 6 producing the legs or prongs of the fastener members at which they are attached to the fastener tapes. The rolls comprise discs 21, Fig. 6, having projecting teeth 23, Fig. 9, to form the incisions 5 in the edges of the strip which is held vertically between side discs 20, 22. The disc 20 has recesses 24 in which the noses 4 of the members are formed in the process of forming the recesses 3 by means of teeth 29 on a disc 25 which engages the strip face through the gaps between teeth 30 in the disc' 22. The rolls are mounted on shafts 9, 10 driven through a pulley 11 and gears 12, 13a, 13b, backlash being prevented by spreading the gears 13a, 13b circumferentially. Intersecting discs 14, 18, 20 on the roll shafts maintain the forming discs 16 in alignment. The disc 25 is mounted for rotation on a horizontal arm 27 adjustable about a vertical pivot (not shown) to bring the disc into position.
Patent GB-447650-A (GB)
Title: Improvements in and relating to hinges
IPC: E05D11/00
Filed: 1935-09-11
Abstract: 447,650. Dish - washing machines. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London. Sept. 11, 1935, No. 25256. Convention date, Sept. 11, 1934. [Class 138 (i)] [See also Group XXV] A hinge structure for attaching the lid 10a to the upper wall 10b of the vat of a dishwashing machine comprises a pair of pivotally interconnected members 12, 18, the former attached to the vat and the latter to the lid and each provided with flexible metallic friction surfaces 13, 19 arranged to engage each other and having means for moving the surfaces to increase the frictional force between them as the lid is opened, so as to hold the lid in its raised position. The hinge member 18, which is carried by a plate 20 secured to the vat lid by bolts 21, is provided with a cover plate 39 and the lid is formed with a vent hole 38 and a baffle 43, while the plates 20, 39 are provided with vent apertures 37, 42.
Patent GB-736004-A (GB)
Title: Improvements in or relating to forming tools for sheet metal components
Inventor: REES JOHN
IPC: B21D37/20
Filed: 1951-10-29
Abstract: 736,004. Stamping and forging dies. BRISTOL AEROPLANE CO., Ltd. Aug. 1, 1952 [Oct. 29, 1951], No. 25258/51. Class 83 (4). [Also in Group V] A forming tool for use in manufacturing sheet metal components is moulded from a doughy mixture of glass fibre and a liquid casting resin of the kind that sets at room temperature under low pressure. A part of the surface of the tool may be re-inforced with spun or woven glass impregnated with resin and moulded into the surface of the tool. A backing block of wood or metal may be stuck to the free surface of the dough before it has set, the engaging surface of the block being roughened or provided with protrusions to ensure an effective joint. Additions may be made to the tool by drilling holes therein to provide keying recesses, boxing around to the required shape and packing in additional dough. The fibres may be in the unspun state. Scrap pieces of glass cloth and glass thread may be used instead of or in addition to unspun glass fibre. The resin may be of the polyester type. Fig. 2 shows a mould 10 for making a beating block for a metal duct bend changing from triangular to rectangular section. Corners of the block may be re-inforced by laying in the mould 10 at the appropriate places 11 a length of spun glass fibre thread or woven glass fibre tape, the thread or tape being impregnated with the resin before the main mass of material is packed in.
Patent GB-969914-A (GB)
Title: An alternating current generator
IPC: H02K19/24
Filed: 1961-07-12
Abstract: 969,914. Inductor-attenuators. SIEMENSSCHUCKERTWERKE A.G. July 12, 1961 [July 14, 1960], No. 25326/61. Heading H2A. An alternating current generator has an interdigitated rotor including claw pole wheels 3, 4, and a stator housing 8, 9, 10 through which passes a magnetic flux produced by two exciter coils 19, 20 mounted at opposite ends of the rotor on annular supports fixed in relation to the housing and directly surround the shaft of the generator, the exciter windings producing magnetization in the same axial direction, each claw pole wheel having a radial planar surface which faces a radial planar surface of an adjacent one of the annular supports and is spaced therefrom by an air-gap the width of which extends parallel to the shaft and each claw pole wheel also having a cylindrical surface which faces a cylindrical surface of a respective annular support and is spaced therefrom by a air-gap the width of which extends radially. In Fig. 1 the claw wheels 3, 4 are separated by a non-magnetic spacer 5 of cast aluminium. The shaft 1 is made of non-magnetic material and the stator stampings 11 are separated from the stator shell 10 by a non-magnetic aluminium ring 21. In a modification, Fig. 2 (not shown), the rotor comprises two claw wheels directly mounted on the non-magnetic shaft and separated by an air gap.
Patent GB-1123894-A (GB)
Title: Improvements in or relating to elastomer/non-elastomer staple fibre yarns
Inventor: ROEBUCK ALAN
IPC: D02G3/32
Filed: 1966-06-07
Abstract: A yarn comprises non-elastomeric staple fibres, and elastomeric fibres stapled by a stretching breaking process.  As described a preferably potentially shrinkable, polyesterurethane, elastomeric filament yarn was combined with a roving at the front rollers of a roving frame to form a composite roving.  Four such rovings were spun on a cotton or worsted spinning frame using a draft sufficient to stretch break the elastomeric filaments.  The non-elastomeric fibres may be polyamide, polyester, polyolefin, glass, cotton or wool fibres and may have been crimped by an edge, false-twist, or stuffer box crimping process.
Patent GB-1467988-A (GB)
Title: Fluorinated sulphosuccinates their preparation and use
IPC: C09D7/47
Filed: 1974-06-07
Abstract: 1467988 Wax emulsions HOECHST AG 7 June 1974 [9 June 1973] 25377/74 Heading C5W [Also in Divisions A5 and C2] The distribution and spreading capacity of a montan wax emulsion containing 15 parts by wt. of montan wax, 3 parts by wt. of diethanolamine and 82 parts by wt. of water on a P.V.C. plate are improved by the addition of 0À025 parts by wt. of a fluoro surfactant having the formula (I)  in which R represents a group of the general formula (II) wherein Rf represents a straight-chain perfluoroalkyl group having 2 to 8 carbon atoms or a terminally methyl-branched perfluoroalkyl group having 3 to 8 carbon atoms, m is an integer from 1 to 4 and n is zero or an integer from 1 to 3, R<SP>1</SP> represents a group of the above general formula (II) or a cation, and M represents a cation.
Patent GB-278014-A (GB)
Title: Improvements in or relating to the reception and recording of electrical signals over cables or the like
IPC: H04L25/06
Filed: 1927-09-26
Abstract: 278,014. Gaskin, S. T. Sept. 27. 1926. [Convention date]. Systems employing selenium cell relays. - In order that the signalling speed permissible in cable telegraphy may be increased by amplification without a corresponding amplification of disturbing currents, the output of a moving coil and selenium cell instrument such as a Cox or Heurtley magnifier is amplified by a thermionic valve system before being applied to the receiver. The output of a, high resistance selenium cell can be efficiently applied to the high impedance input circuit of a valve system. The natural period of the moving coil is adjusted so as to be favourable to signals but not to disturbances. The output of the selenium cell is applied to terminals 15, 16, separated by a high resistance 19, 20, in shunt with shaping condensers and connected to the grids of two valves 1, 2, which forms two arms of a Wheatstone bridge. The other two arms comprise resistances 13, 14, one diagonal comprises the high tension battery 12, and the other diagonal comprises condensers 25, 26 shunted if desired by high resistances 21, 22. The potential differences set up across the latter by received signals are applied to the input terminals of a second similar bridge which includes valves 35, 36, the output diagonal comprising a condenser 27 whose terminals 46, 47, are connected to the telegraph receiver. Selenium cells. -The selenium cell comprises brass strips separated by mica, strips, a thin film of selenium being applied to the edges. In order that the resistance of the cell may be reduced a large number of sections is connected on parallel. The sections are disconnected as they become faulty and the resulting rise in the resistance of the cell is compensated by using a thermionic amplifier instead of increasing the battery power. Duplex telegraphs.-The use of a suspended coil instrument for receiving incoming signals as described above minimizes interference from outgoing signals.
Patent GB-595006-A (GB)
Title: Velocity modulation impulse generator
IPC: H01J25/12
Filed: 1944-12-20
Abstract: 595,006. Pulse generating circuits; velocity-modulated tubes. STANDARD TELEPHONES & CABLES, Ltd. Dec. 20, 1944, No. 25594. Convention date, July 17, 1941. [Classes 39 (i) and 40 (v)] A radio-frequency pulse generator comprises a velocity-modulated tube in which the cathode, control grid and a third electrode are connected externally in a blocking oscillator circuit. The Figure shows electrode 23 as the anode of the blocking oscillator section and an autotransformer 16 gives positive reaction between the anode and grid circuits to produce blocked oscillations with a recurrence frequency determined by the time constant of the biassing network 17, 18 in the cathode circuit. The short pulses of cathode current are focused by accelerating electrode 4, which is connected to a stabilizing network 21, 22 to avoid defocusing, and then pass to the Klystron section comprising resonant chamber grouping and extracting circuits 5 and 6 respectively, coupling loop 13 and collector electrode 7. In a simplified version (Fig. 1, not shown), electrode 23 and the stabilizing network are omitted and accelerating electrode 4 is used as the anode in the blocking oscillator section. Specifications 547,715 and 564,731 are referred to.
Patent GB-225017-A (GB)
Title: Improvements in apparatus for manufacturing brushes
IPC: A46D3/08
Filed: 1923-10-13
Abstract: 225,017. Neuhafer & Levi, Ltd., M., (Marogg, R.). Oct. 13, 1923. Sewing-needles. - In a brushmaking machine for securing tufts of bristles in the brush stock by wire stitching, a needle 53 is employed having an eye 55 and a longitudinal bore 54 through which, and through the hollow handle 7, the wire a passes. The needle is bent, as shown, so as to form the loop 57 for embracing a tuft of bristles. A lever 42 is provided in the handle to grip the wire a when the tuft is 'being drawn into a hole in the brush stock.
Patent GB-1390789-A (GB)
Title: Process for producing filament-reinforced composite metallic material and the material produced thereby
IPC: C22C47/18
Filed: 1972-06-01
Abstract: 1390789 Making filament-reinforced metallic material UNION CARBIDE CORP 1 June 1972 [2 June 1971] 25603/72 Heading B3A [Also in Division E1] A method of making a filament-reinforced composite metallic material includes arranging filaments to produce a form having spacings between adjacent filaments, selecting at least two metallic powders which when appropriately mixed and heated under pressure form an intermediate transient liquid phase while a portion of at least one of the powders remains in a solid state, the liquid phase disappearing through progressive reaction with the powder in the solid state, and plasma-arc depositing the powders in a substantially unreacted state on to the filaments. The filaments may be of boron, graphite, alumina, steel, beryllium or silicon carbide and if necessary may be coated, e.g. silicon carbide on boron or boron nitride coated. The filaments may be arranged on an alloy foil, which is compatible with the deposited material. The latter comprises elemental metals, alloys or compounds of copper, silicon, aluminium, titanium, iron, cobalt, magnesium, nickel, zirconium, beryllium, manganese, zinc, tin, lead, bismuth or chromium. The plasma-arc spray forms a matrix composed of particulate discrete metallic powders and the resultant material is sufficiently rigid to be fabricated in layers into panels for aerospace applications and the like. The assembled layers are heated at 542-623 C. at a pressure of less than 1000 p.s.i., preferably 80-500 p.s.i. for about one hour and a minor fraction of at least one of the component powders exists in a transient liquid phase at the particle interface. The liquid phase disappears as the reaction proceeds and an essentially homogeneous solid alloy matrix is produced.
Patent GB-1059018-A (GB)
Title: Position measuring transformer arrangements
IPC: H02P5/50
Filed: 1965-06-17
Abstract: 1,059,018. Automatic speed control systems. INDUCTOSYN Ltd. June 17, 1965 [June 25, 1964], No.25655/65. Heading G3R. Two shafts, e.g. driving workpiece and tool in a gear cutting machine, are kept in synchronism at any selected ratio of speeds by a selsyn system, there being a plurality of selsyns on each shaft; their windings are such that each selsyn on a shaft produces a different number of cycles of coupling wave per revolution, and they can be interconnected in cascade in adding or subtracting relationship, or by-passed, to match the desired speed ratio of the shafts. One shaft is driven directly by an electric motor, and the other is coupled to it through a differential gear; lack of synchronism produces an output voltage from the rotor of the last selsyn in the chain and this is used to control a reversible servomotor acting on the cage of the differential. The system described in detail provides any ratio between 1 and 40, using selsyns whose cycles per revolution differ in powers of 3.
Patent GB-1416832-A (GB)
Title: Building construction
IPC: E04B1/348
Filed: 1973-05-30
Abstract: 1416832 Prefabricated buildings D L STELP 30 May 1973 25677/73 Headings E1A and E1W In a building having a floor, side walls and a roof each formed by a series of prefabricated channel-shaped panel units 31 arranged side by side and wherein each unit comprises a web portion with a pair of opposed flanges at right angles thereto, the abutting flanges of adjacent units in the floor, wall and roof are respectively fixed to one another and the units in the wall are fixed to those in the floor and the roof by panel joiner members 57 which are sandwiched in the joints therebetween and project into the joints between the adjacent flanges of the floor and roof units. Additional spacer units 61 are used in the joints between the floor units and the roof units and all joints may incorporate a polyurethane foam sealing tape; the upstanding flanges 41 of the roof units being capped by glass-fibre-reinforced plastics member 63. Each panel unit comprises a core of rigid foamed plastics with a skin of glass-fibre reinforced plastics. For connection between an end wall panel and the roof and floor panels Figs. 4 and 5, (not shown), should be referred to respectively.
Patent GB-1074042-A (GB)
Title: Processes for preparing graphite anodes
Inventor: SHIBATA HIROSHI
IPC: C25B9/04
Filed: 1965-04-15
Abstract: <PICT:1074042/C6-C7/1> In a process for producing a graphite anode suitable for use in a mercury cell for the electrolysis of an alkali metal chloride solution, that part of the anode block 5 surrounding a tapered recess 16 is impregnated with a chlorine-resistant material, e.g. chlorinated naphthalene, chlorinated paraffin, or chlorinated fish or vegetable oil, by placing said material in said process and maintaining it at 150-200 DEG C. e.g. for 30 - 60 mins at a pressure greater than atmospheric; the end of a conductive connector stem 4, e.g. of copper, brass or graphite, is bonded into said recess 16, and the resulting interface sealed by a chlorine resistant adhesive 18; and that part of the stem 4 which in use contacts the electrolyte is covered with chlorine-resistant material 13, e.g. a hard rubber, polyester, vinychloride or fural resin or powdered ceramic material. The adhesive 18 may have embedded therein one or more rings 14, which may be bolted to the anode plate, Fig. 7 (not shown). Prior to the said impregnation of the anode plate, it may be impregnated throughout with a synthetic resin latex and dried at 50 - 100 DEG C. for 4 - 10 hours resulting in a film of latex adhering to the walls of the pores.
Patent GB-644761-A (GB)
Title: Improved apparatus for the manufacture of armatures for dynamo-electric machines
IPC: H02K15/06
Filed: 1948-10-02
Abstract: 644,761. Armature winding machines. GENERAL MOTORS CORPORATION. Oct. 2, 1948, No. 25709. Convention date, Oct. 10, 1947. Drawings to Specification. [Class 35] A machine for inserting " hairpin " conductors axially into armature slots has a movable lower support for raising the conductors in a holder in which they have been manually arranged into a fixed upper support having manually applied fingers for holding the conductors in spaced relationship, whereupon the empty holder is replaced (after lowering the lower support) by the armature core which is raised so that the conductor just enter its slots. The conductors are then pressed downwards into the slots by a ram, the initial movement of which causes release of the conductor holding fingers. The ram is moved downwards on to the ends of the conductors by fluid pressure and just prior to its movement additional means may hold the core as well as the fluid-operated piston used for raising and lowering the lower support for the preceding operations. As soon as the conductors are positioned in the slots, the ram is raised and the lower support unlatched and lowered with the wound armature.
Patent GB-1270444-A (GB)
Title: Improvements in or relating to heat exchanger apparatus
Inventor: FINLAY-MAXWELL DAVID
IPC: F22B1/28
Filed: 1969-05-21
Abstract: 1,270,444. Superheating steam. JOHN GLADSTONE & CO. (ENG.) Ltd. 21 May, 1970 [21 May, 1969], No. 25892/69. Heading F4A. In a heat exchanger forming part of a textile web treatment apparatus steam from supply pipe 2 is fed at full pressure through valve 6 into jacket 4 to heat steam in passageways 5 which is supplied from the same source 2 but at a lower temperature having passed through reducing valve 3. The heated steam passes from passageways 5 through space 9 where it is further heated by electric radiant heaters 10. The steam is then admitted into perforated pipe 35 via valve 12 and passes through textile package 32 into autoclave 1. Heat exchange passageways 5 and the autoclave 1 are provided with condensate outlets connected via valves 7 and 30, respectively. Steam supplied via valve 31 to perforated pipe 33 may be passed through the system in reverse by first closing off the steam supply at valve 3 and connecting vacuum pump 18 to the system via valve 17. In this case the electric heaters are switched off, the steam supply to space 5 closed off at valve 6, and cold water passed through space 5 by opening inlet and outlet valves 15, 16 in order to condense the steam flowing through. A control unit 19 receiving signals from temperature and pressure sensors 14, 15 may be used to control the valves and obtain the desired humidity/temperature cycle.
Patent GB-783376-A (GB)
Title: Improvements in and relating to ships' hatches and like covers
IPC: B63B19/14
Filed: 1955-09-09
Abstract: 783,376. Covers for access and openings. AKTIEBOLAGET GOTAVERKEN. Sept. 9, 1955 [Sept. 18, 1954], No. 25918/55. Class 107 [Also in Group XXXIII] A device for covering openings comprises a cover 5 mounted on a coaming 2 for angular displacement on pivots 8 about a central axis in such a manner that the halves 11, 14 of the corner balance each other and that the opening is uncovered when the cover is moved into a vertical position in the opening itself. Two round iron bars 3 and 4 welded to the upper end of the coaming serve as abutments for packings 6 and 7 carried by the cover. The part 11 of the cover which is to be swung upward has a plate 12 forming part of the housing for the packing 7 which engages the upper sides of the bar 4. The other part (14) is of smaller width for swinging downward and has a L-shaped member 15 providing a groove for the packing 6 which engages the under side of the bar 3. Provision is made for continuity of the seal in the vicinity of the pivots where the packing crosses from the under side to the upper side of the abutment bars. The cover may be closed by means of one or more bolts such as 17.
Patent GB-259283-A (GB)
IPC: B67D1/02
Abstract: 259,283. Gaskell & Chambers, Ltd., and Weightman, J. S. July 2, 1925. Buckets.-In a beer-pump bucket packing is dispensed with, the bucket being formed with one or more bands 2, which may be ground to fit the cylinder, the intervening spaces 4 forming liquid seals. The surface of the bucket may be slightly curved, the middle portion being a sliding fit in the cylinder, while the upper and lower portions form liquid seals. Th piston-rod may be secured to a detachable bridge-piece 10, which forms also a stop for the valve 5. The seating of the valve is at an acute angle and the skirt of the bucket projects beyond the valve atem.
Patent GB-756280-A (GB)
Title: Reciprocating electromagnetic compressors for refrigerators
IPC: F25B31/02
Filed: 1954-09-08
Abstract: 756,280. Reciprocating motors. GIGLER, C. Sept. 8, 1954, No. 25993/54. Class 35. [Also in Group XXVIII] A refrigerator compressor is driven by a reciprocating electric motor whose armature 15 is freely suspended between springs 21, 22 and is directly connected to the piston 28. The armature is provided with teeth co-operating with similarly toothed stator cores 12 energized by a coil 11 fed from the A.C. mains. The whole unit is sealed within a non-magnetic tank, which is mounted by springs 8, 9 inside a tank 1. The lower part of the armature drives a pump 24, 25 which pumps lubricant 25a up pipe 26 to lubricate the compressor cylinder 27.
Patent GB-1310318-A (GB)
Title: Process for dyeing synthetic linear polyesters
IPC: C09B1/40
Filed: 1971-04-19
Abstract: 1310318 Dyeing polyester materials BADISCHE ANILIN- & SODA-FABRIK AG 19 April 1971 [3 April 1970 (5)] 26013/71 Heading D1B Synthetic linear polyesters are dyed with disperse dyes in perchloroethylene containing 20 to 60% by weight of water with reference to the polyester dyed the dyes being substituted amino- and hydroxy-anthraquinones. The water may be added as steam, and dyeing is generally effected at temperatures above 100‹C in a closed apparatus.
Patent GB-208797-A (GB)
Title: A method of producing visual depth in projected pictures
IPC: G03B21/13
Filed: 1922-09-28
Abstract: 208,797. Marten, T. H. Sept. 28, 1922. Drawings to Specification. Relief effects in kinematograph images, producing; optical-projection apparatus. - An image is arranged around an optically-projected picture and is expanded and contracted so as to produce visual depth in the picture. The surrounding image may be optically projected and is such as to form a suitable setting for the picture; it may be supplemented by hangings. The outer edges of the image are caused to creep gradually towards or away from the picture and the luminosity of the image may be simultaneously varied.