baber/WOPTO huggingface dataset:
Patent GB-1278107-A (GB)
Title: An aluminium alloy for sliding contact bearings
Inventor: KOPKE GUNTER
IPC: C22C21/00
Filed: 1969-07-30
Abstract: 1278107 Aluminium alloy KARL SCHMIDT GmbH 30 July 1969 [30 July 1968] 38297/69; Heading C7A Aluminium alloy for parts exposed to sliding friction, comprises:- with an optional addition of 1-7% Si, the balance, apart from impurities, being Al.
Patent GB-819676-A (GB)
Title: Stabilization of polymeric n-vinyl pyrrolidones with hydrazino compounds
IPC: C08K5/24
Filed: 1956-12-17
Abstract: A process of stabilizing a polymeric N-vinyl pyrrolidone against discoloration comprises incorporating with said pyrrolidone 0.01 to 0.5 per cent by weight of a hydrazine having the general formul R-NH.NH2, R1NHNHR, R1R1N.NHR, R2CX.NHNH2 or R.CONHNH. CO.R2 wherein R is hydrogen or an alkyl, hydroxyalkyl or ammonium alkanoate radical, R1 represents an alkyl, hydroxyalkyl or an ammonium alkanoate radical, R2 represents NH2 or an alkyl radical and X represents oxygen or sulphur. The polymer may be a homopolymer of N-vinyl pyrrolidone (which may have methyl or ethyl ring substituents), or a grafted polymer wherein the water-soluble component is a polymer of N-vinyl pyrrolidone, a copolymer containing -CHX-CH2- units, where X is halogen, carbalkoxy, cyano, acyloxy, aryl, alkoxy or phenoxy.  A number of derivatives of hydrazine, semicarbazide and thiosemicarbazide within the scope of the above formul  are listed. In examples: (1) portions of an aqueous solution of polymeric N-vinyl pyrrolidone are heated alone and in admixture with hydrazine, b -hydroxyethyl hydrazine, the ammonium salt of hydrazinodiacetic acid and acetyl hydrazine respectively, and the light transmission of the solutions at various stages is determined; (4) aqueous polymeric N-vinyl pyrrolidone containing dimethylhydrazine is spray-dried; (7) a 7 per cent solution of a copolymer of acrylonitrile and N-vinyl-pyrrolidone in an aqueous mixture of zinc and magnesium chlorides and hydrazine is spun into filaments in a coagulating bath; (8) a grafted copolymer of acrylonitrile and polymeric N-vinyl-pyrrolidone prepared according to Example (17) of Specification 715,194 is dissolved in dimethyl formamide containing 2-hydroxy-ethyl hydrazine and is spun into filaments.
Patent GB-1466505-A (GB)
Title: Clothes-drying or airing apparatus
IPC: D06F57/00
Filed: 1975-09-18
Abstract: 1466505 Drying or airing clothes BACON LIU 18 Sept 1975 38413/75 Heading A4U [Also in Division G3]  A clothes drying or airing apparatus comprises a ceiling or wall-mounted member 1 carrying a member 2 having spaced bifurcated brackets 221, 231 slidably supporting a clothes-supporting member 4 for movement between the extended position shown to project out of a building housing the apparatus and a retracted position within the building. A moisture-sensing means 8 may be provided, see also Figs. 8 and 9 (not shown), for operating an electric motor 7 to automatically move the member 4 via a pinion and rack drive to either of its positions depending on whether or not the member 8 senses rain, see also Fig. 4 (not shown), or the member 4 may be moved only manually by a handle 5. Cushioned end stoppers 43, 44 are provided and plates 42 on the member 4 co-operate with a part 31 on the member 1 to prevent inadvertent rotation of the member 2 when the member 4 is in its extended position. The member 2 is rotatable on the member 1 to selected positions in which it is releasably retained by a spring-urged ball indexing member 211 engaging holes in the part 3 of the member 1, see also Fig. 2 (not shown). The motor control circuit for automatic movement of the clothes-supporting member 4 in dependence upon whether or not it is raining comprises the moisture sensing means 8 which operates a transistor Q to activate or deactivate a relay R so as to operate relay contacts Ra, Rb to rotate the motor 7 in the correct direction. Limit switches 9, 10 on the member 2 are operated by actuators (11, 12) at the ends of the member 4, (Fig. 4), to stop the motor when the member 4 has reached its end positions of movement, and a warming device H is operated when the associated contact Ra is closed on detection of rain by the sensing means 8 which is disposed in the open, the device H being used to dry the sensing means 8 quickly when the rain stops. The sensing means 8 comprises a printed circuit having two conductive regions separated by insulation which is bridged by rain. Although the circuit may as shown incorporate a full-wave rectifier a half-wave rectifier may be used instead, and the relay R may be replaced by an electronic switch, e.g. a flip-flop, and the transistor Q may be replaced by a vacuum tube or F.E.T. The circuit may include I.C. components.
Patent GB-350390-A (GB)
Title: Improvements in or relating to the manufacture of flexible tubes
IPC: B29C48/09
Filed: 1930-02-27
Abstract: 350,390. Flexible tubes. GRINT, W. H. and SUPERFLEXIT, Ltd., 110, Cannon Street, London. Feb. 27, 1930, No. 38443. Divided on 349,965. [Class 99 (ii).] Flexible tubes are made by extruding cellulosic material around a continuously-fed wire helix. In Fig. 1 cellulosic material in a bath 11 passes through a nozzle 12 past the end of a guiding tube 13 for the wire helix 14. The coated helix 14 passes into a setting bath 15. The cellulosic material is contracted on to the helix 14, the surplus material forming pleats extending longitudinally of the tube, by means of opposed rollers 18, 19. The rollers may be rotated about the axis of the tube or the helix may be screwed into the tube 13. The rollers 18, 19 may be located in the bath. Alternatively the contraction may be effected by winding an outer helix on to the tube with its convolutions lying between those of the inner helix. This outer helix may be a permanent binder as described in Specification 206,046, [Class 99 (ii), Pipes, tubes, &c.], or a temporary binder as described in Specification 349,965 may be used. In a modification, Fig. 2, the helix 14 is fed screwwise into a groove 23 formed between the outer shell 20 and the inner core 21 of a die. Ducts 25, 26 communicate with the groove 23 and through them a cellulosic and if necessary a hardening agent is supplied. On leaving the die the tube may be passed into a bath as shown at 15 in Fig. 1. The tubes may be protected by layers of canvas, rubber, waterproof material and outer layers of canvas. An outer binder may also be added, which may be encased by a braided or woven covering.
Patent GB-880868-A (GB)
Title: Improvements in or relating to heat producing compositions
Inventor: COOKSY ROBERT JAMES
IPC: B22D27/06
Filed: 1958-11-28
Abstract: A heat-producing composition has the following composition by weight:-  .aluminium powder (passing a 60-mesh).5 to 15%, .porous filler(s).40 to 60%, .oxidising agent(s).10 to 30%, .with or without binder(s).2 to 12%, .and/or a fluoride (e.g. cryolite).less than 10% The porous filler may be coke, grog or furnace aggregate; the oxidising agent is selected from iron and manganese oxides, and mixtures of nitrates and chlorates of alkali and alkaline earth metals; binders include dextrin, bentonite or sulphite lye.  The composition may be used to line the head of a mould for the production of castings.  Specifications 627,678, 769,719, 774,490, 774,491 and 812,583 are referred to.
Patent GB-1130030-A (GB)
Title: Improvements in apparatus for the continuous indication and automatic regulation of the viscosity of a liquid
IPC: G01N11/04
Filed: 1966-08-30
Abstract: 1,130,030. Determining a regulating viscosity. E.H.G. STUMM. Aug.30, 1966 [Sept.13, 1965], No.38580/66. Heading G1S. Apparatus for the determination and regulation of viscosity of a liquid in which the liquid is fed through two orifices of the apparatus by gravity comprises two vessels 6, 12 disposed one above the other with an orifice 11, 19 in the bottom of each vessel. The upper vessel 6 is mounted in the upper part of a casing 1 and is provided with a circular overflow 7 and a thin walled orifice 11 which discharges according to the liquid viscosity into the lower vessel which is open at the top and equipped with a nozzle 19 at the bottom having one or more suitably dimensioned smooth passages, so that the mass or weight of liquid contained in this vessel, or its level may be a function of the viscosity of the said liquid. The viscosity is regulated by a cam device 27 which moves in accordance with the indicater needle 14 which actuates the needle of a valve controlling the passage of a diluent which is mixed with the liquid. The nozzle 19 may be interchanged for different viscosity ranges.
Patent GB-1394145-A (GB)
Title: Monitoring travel of vehicles
IPC: G01P13/00
Filed: 1973-08-16
Abstract: 1394145 Monitoring travel of vehicle  SIEMENS AG 16 Aug 1973 [18 Aug 1972] 38858/73 Heading G1A The travel and speed of a vehicle is monitored by photo-electrically sensing rotation of a chopper disc, driven by the vehicle wheel, the disc comprising sections which affect the light reaching the detector to differing degrees but always providing a level of detector output. Thus in Fig. 1, the chopper disc 5 is of partially transparent material and is toothed or perforated. The light emitting diode is pulsed by generator 2 at high frequency and a filter capacitor 3 is provided in the phototransistor 7 output circuit and the generator input to prevent feedback to the latter. The signal delivered to high pass filter 8 comprises an A.C. signal modulated at high frequency in accordance with source 4 modulation, and changing, from a high amplitude level representative of direct light reaching the detector to a low level representing partially absorbed light, at the frequency dependent on the speed of rotation of the chopper disc, which is itself dependent on the speed of vehicle travel. The pulse shaper 10 delivers signals to travel measuring device 11 e.g. a counter and speed measuring device 12. If the chopper disc stops, the signal remains at the high or the low level of high frequency modulated signal. If the lamp, generator or connection L 1 , L 2  etc, fails, the signal level drops below a pre-set threshold in 9 and an alarm is actuated. Instead of filter 8 a transformer may be provided. In a second embodiment, Fig. 2 (not shown) the source is of constant intensity and the phototransistor forms part of a squarewave generator, including a trigger diode (and a charging capacitor) or alternatively a double base diode, which provides alternate higher and lower repetition rate pulse signals for the respective parts of the disc. A band pass filter 16 can pass both signals to alarm and measurement circuits as in Fig. 1. A reflective chopper disc having alternate sections of high and low reflectivities may alternatively be used. The detector may alternatively be a photo-resistor. Direction of movement may be indicated by having a further source and detector monitoring a different part of the disc path.
Patent GB-1058584-A (GB)
Title: Polymerisation of ethylene
Inventor: WISSEROTH KARL
IPC: B29C48/51
Filed: 1963-10-04
Abstract: In a process for the production of homopolymers and copolymers of ethylene by polymerizing ethylene in the presence of preformed ethylene polymer and in the absence of other diluents and using catalysts containing chromium oxides at pressures of 5 to 100 atmospheres, the ethylene is allowed to act on a mechanically moved suspension of the catalyst in the molten ethylene polymer at temperatures between 130 DEG  and 230 DEG  C.  In the examples, ethylene is polymerized in batches or continuously, alone or with the comonomers propylene or butene-1, and with a catalyst comprising chromium trioxide on an aluminium silicate carrier suspended in a molten polyethylene which may be waxy.
Patent GB-1102520-A (GB)
Title: The construction and method of assembly of a resonator for a timepiece
IPC: G04C3/10
Filed: 1966-09-01
Abstract: 1,102,520. Springs. UNITED STATES TIME CORPORATION. 1 Sept., 1966 [3 Sept., 1965], No. 39164/66. Heading F2S. [Also in Division G3] A spring 21 for mounting a timepiece vibrator (see Division G3) is secured to a brass button 24 by inserting the portions 20, 22, 23 of the spring in a slot in the button. The spring is soldered or brazed in the slot and after mounting the spring between the vibrators (11, 12), Fig. 1 (not shown) and a base-plate (10), two saw cuts are made across the button to free the vibrators from the base. Instead of using a slotted button, the spring may be attached to the outer surface of the button and the spring- button assembly may be formed integrally.
Patent GB-1376430-A (GB)
Title: Process for manufacturing welded objects of crosslinked plastics  materil
IPC: B29C71/04
Filed: 1973-08-20
Abstract: 1376430 Seaming non-metallic sheet material PONT-A-MOUSSON SA 20 Aug 1973 [25 Aug 1972] 39269/73 Heading B5K Welded objects of cross-linked plastics material are produced by first producing parts which are not cross-linked from cross-linkable plastics material containing cross-linking agents at a temperature lower than that required for the cross-linking to take place, welding the parts together and effecting cross-linking of the assembly. Preferably, the cross-linkable plastics material is a polyolefin, e.g. high or low density polyethylene or polypropylene, and may contain a filler, e.g. a fibreglass filler. High density polyethylene may contain as cross-linking agent an organic peroxide, e.g. ditert-butyl peroxide, dicumyl peroxide or diperoxide 1,3- ditert-butyl peroxide isopropylbenzene and is extruded at 140-180‹ C. to form parts which are welded at 180-200‹ C. and cross-linked at or above 200‹ C. The parts may be welded with overlapping edges, Fig. 1 (not shown), or with abutting up-turned flanges, Fig. 2. Specified welding methods are (a) passing the parts in front of a stream of hot air and then pressing between rollers; (b) passing the parts between heating pads having a low coefficeint of friction and then pressing between rollers; (c) simultaneous heating and pressing by heating tongs; and (d) treating the parts with ultrasonic sound and passage between rollers.
Patent GB-904482-A (GB)
Title: Electric filter for direct-current circuits
IPC: H02M1/14
Filed: 1960-11-17
Abstract: 904,482. Smoothing direct current. BROWN, BOVERI & CIE. A.G. Nov. 17, 1960 [Nov. 20, 1959], No. 39556/60. Class 38 (2). In order to reduce the potential across shunt capacitors in a filter for removing A.C. components from a D.C. supply, the capacitors are connected in series with a separate D.C. source. In the simplest embodiment a D.C. source 4 of opposite polarity to the main D.C. source is connected in series with the capacitors 1 which, together with inductors 2, 3, form the filter. The auxiliary voltage may be varied with the main D.C. voltage to provide optimum compensation under all voltage conditions. To this end, the D.C. source 4 may be connected in series with a valve 5 and anode load 9. The anode current is regulated by a control box 6 which may be connected so as to respond to the total main D.C. voltage or to the voltage across the capacitors 1. The control box 6 may embody a filter to prevent interference by harmonics. The valve circuit may be replaced by a transistor circuit.
Patent GB-1317384-A (GB)
Title: Method of producing a drink composed of milk and citrus fruit juice
IPC: A23C9/12
Filed: 1971-08-24
Abstract: 1317384 Fruit drink CALPIS SHOKUHIM KOGYO KK 24 Aug 1971 [12 Sept 1970] 39708/71 Heading A2B A method of producing fruit drinks comprises concentrating 100 parts by weight of citrus fruit juices containing 10-25% by volume of pulp material composed mainly of vesicle membrane, to not less than one third of their original weight, and mixing the resultant concentrate with 5 to 40 parts by weight calculated on the basis of the original juice weight of fermented milk and/or milk containing added edible organic acids. The juices may be derived from oranges, grapefruit, citron and lemon and may be concentrated by vacuum or freezing techniques. Suitable organic acids are lactic, citric, malic, and fumaric acids.
Patent GB-1137797-A (GB)
Title: Improvements in panel or window assemblies
IPC: E06B3/46
Filed: 1967-08-30
Abstract: 1,137,797. Panel and window assemblies. CLIVE INVESTMENTS PTY. Ltd. 30 Aug., 1967 [30 Sept., 1966], No. 39727/67. Heading E1J. A panel or window assembly comprises a main frame 4, 23, composed of metal sections or frame members for mounting in an opening in a wall or the like, the lower rail or sill 4 having a first flange 8 carrying dust excluder strip 9 and a second flange 11 of lesser height than flange 8, the head 23 of the main frame having two depending flanges 24A each with dust excluder strips 25 on confronting faces and a sliding panel 10 having on its lower rail a pulley 12 for sliding engagement on the flange 11 and having a face engaging the strip 9, the upper rail of the panel 10 fitting inside the upper head rail 23 and engaging against the strips 25, and a fixed panel 16 whose frame is secured e.g., by screws 33 to the head 23 and sill 4, passing through flanges on the fixed panel. One flange 24A is recessed at 29 to seat the toe of the flange 22. The depth of the flanges 24A is sufficient to allow the slidable sash to be lifted from its guide rail 11 and turned as indicated in dotted lines to be taken out of the main frames. The outer slides of the movable panels 10 enter a pocket (35 Fig. 3) in the stiles of the main frame and these stiles on the slidable frame have a chamfer (37) which mate with the edge of the pocket (35) to press the slidable frame against the draft and dust excluder strips (42) on the main frame, as the frame is pushed home by levers (38). An insect screen may be received between the channel 31 and rail 30.
Patent GB-1280459-A (GB)
Title: Silicon nitride products
Inventor: ARROL WILLIAM JOHN
IPC: C04B35/80
Filed: 1968-08-20
Abstract: 1280459 Silicon nitride JOSEPH LUCAS (INDUSTRIES) Ltd 6 Aug 1969 [20 Aug 1968] 39790/68 Heading C1A Silicon nitride is produced by flame spraying silicon and spraying inert fibrous material on to a mandrel and then heating the product in a nitrogen atmosphere. Specified inert fibrous materials include asbestos, proprietary materials Kaowool and " Fiberfax " (Trade Mark), or whisker materials such as silicon nitride and silicon carbide. The silicon and fibrous material may be sprayed (a) separately and simultaneously, (b) as a mixture of the two, (c) in alternate layers.
Patent GB-1103495-A (GB)
Title: Buildings
IPC: F24F7/04
Filed: 1965-09-20
Abstract: 1,103,495. Ventilating cavity walls and roofs. Y. SOHDA and Y. SOHDA. 20, Sept., 1965 [22, Sept., 1964], No. 39977/65. Heading E1W. [Also in Division F4] Prefabricated wall and roof panels 11 are formed with ducts 17 passing from the bottom of the building to the roof ridge, air flow through which is controlled by lower sliding, and upper pivoted control plates 22 and 23 respectively. The panels each have a foamed plastics layer between an interior sheet 13 and an exterior sheet 11, the ducts being formed either by parallel elongate rails 16, (Fig. 6, not shown), arranged between an intermediate sheet 12 and the interior sheet 13, the plastics layer being arranged between sheets 11 and 12, or by forming the plastics layer with elongate ribs 18 thereon defining channels therebetween, (Fig. 5, not shown), parallel intermediate partitions 19 being arranged in the channels to form ducts 17a.
Patent GB-1076447-A (GB)
Title: An improved switch in combination with a circuit breaker
IPC: H01H71/46
Filed: 1964-10-01
Abstract: 1,076,447. Automatic circuit-breakers. HEINEMANN ELECTRIC CO. Oct. 1, 1964 [Oct.10, 1963], No. 40056/64. Heading H2B. An automatic circuit-breaker such as those of Specifications 982,993 and 684,311 is provided with an auxiliary contact assembly 12 which includes a movable contact-carrying blade 77 engaged by the main contact arm 18 at a portion of the arm 18 directly below the pivot 22 connecting the operating linkage 24 to the arm 18 so that circuit-breaker contact wear does not affect the operation of the auxiliary contacts. The blade 77 is pivoted on a terminal G3 and biased upwardly by a spring 85. It moves between fixed auxiliary contacts 67, 68 and carries an insulating finger 92 which is engaged by the arm 18.
Patent GB-1271650-A (GB)
Title: Lightweight aggregate
Inventor: PILGRIM THOMAS ALBERT
IPC: C08J9/30
Filed: 1968-08-22
Abstract: 1,271,650. Producing foamed resin aggregates; laminates. BPB INDUSTRIES Ltd. 15 Aug., 1969 [22 Aug., 1968], No. 40265/68. Headings B5A and B5N. [Also in Division C1] A coarse light-weight aggregate for cementitious compositions, e.g. concrete, is produced by extruding a foamed urea-formaldehyde resin composition in rod form on to a moving surface, chopping the rod into pieces, and drying the extrudate, the resin composition being allowed to cure after extrusion. Preferably, the extrudate is deposited on to a conveyer from one or more extrusion heads. These heads may oscillate over the width of the conveyer, the zig-zag rods so formed being cut by a plurality of knives and the foamed pieces falling from the end of the conveyer into a hot air fluid bed drier. Cementitious materials mentioned are Portland and rapid hardening cement, hemihydrate or anhydrous calcium sulphate plaster and the cementitious composition may include dense aggregates such as sand or fly ash and reinforcing additives such as polyvinyl acetate, polyvinyl alcohol, polyacrylates and copolymer resins or resins based on synthetic carboxylic acids of petroleum origin. In examples, (i) a urea-formaldehyde foam containing at least 10<SP>6</SP> cells per c.c. and hydrochloric acid as hardener is extruded as a zig-zag rod and is cut before curing is complete, (ii) a rod of similar composition remains on the belt until fully cured, is stored for 24 hours to allow evaporation of water and is then cut, the product so formed having a continuous skin, (iii) the rod is dried and thereby simultaneously cured on the belt. A particular cementitious composition comprises 500 parts by weight of cement, 50 parts by weight of aggregate and 0.5 part by weight of cellulose ether. For the production of a light-weight building board or panel, a composition comprising 500 parts by weight of a hemihydrate plaster, 50 parts by weight of aggregate and 50 parts by weight of an emulsion of a copolymer of vinyl acetate and a vinyl ester based on synthetic carboxylic acids of petroleum origin is prepared and then placed between sheets of lining paper. Generally, building boards may be produced having a core of the aggregate and cementitious material between paper or other facing sheets.
Patent GB-1070544-A (GB)
Title: Positioning device for end loop forming means for spring coiling machine
Inventor: WALLBANK ROGER WICKHAM
IPC: B21F35/02
Filed: 1964-10-06
Abstract: 1,070,544. Coiling. ASSOCIATED SPRING CORPORATION. Oct. 6, 1964, No. 40638/64. Heading B3E. A machine for forming a helical tension spring having loops at both ends comprises means at a first station for forming wire 6 into a helix with an end loop extending outwardly from the first end, means for cutting the helix from the wire, a transfer mechanism 10 for grasping the cut-off helix and moving it to a second station where an end loop is formed on the second end by tools 20, 22, and means 30, 32 on the transfer mechanism for engaging the sides of the first end loop and rotating the helix about its axis to a predetermined position whereby the loop formed on the second end will have a predetermined angular relationship to that on the first end. The wire 6 is fed by rolls 2, 4 against a coiling point (not shown) to form the helix and the first end loop. The transfer mechanism comprises a block 10 movable about a pivot 12 by a piston-rod 14. Jaws 16, 18 are mounted on the block and actuated by fluid pressure to grip the helix. Positioning means 30, 32 are carried by the jaws and have surfaces 44, Fig. 2 (not shown), to engage the first end loop and locate it during transfer to the tools 20, 22 which form the second end loop. The surfaces 44 may be arranged horizontally, Fig. 4 (not shown), or in any other angular position.