baber/WOPTO huggingface dataset:
Patent GB-337998-A (GB)
Title: Improvements relating to door or gate catches
IPC: E05C19/02
Filed: 1929-11-16
Abstract: 337,998. Daly, T., Mitchell, J., and Mitchell, Russell, & Co., Ltd. Nov. 16, 1929. Catches yielding to pull and pressure.-A catch for doors and gates particularly suitable for oven or other heavy doors comprises a pivoted jawed member 6 adapted to be urged to its extreme positions by a spring 8 acting through a lever 5 pivoted at 7 and bearing against a projection on member 6. When the door 9 is open member 6 occupies the dotted-line position. On closing the door, a projection 11 fixed thereon engages jaw 6<b> and throws member 6 clockwise to the full-line position in which jaw 6<a> bears against projection 11 under spring action and holds the door closed. Member 6 is pivoted at 12 between lugs on a casing 4 which encloses the spring &c. and is secured by a single screw 13 in a recess in the oven front or door frame 10.
Patent GB-869673-A (GB)
Title: Process and apparatus for making sheets, boards or other shaped pieces from thermoplastic mineral fibres
IPC: D04H1/54
Filed: 1958-11-03
Abstract: 869,673. Agglutinated fibrous materials. COMPAGNIE DE SAINT-GOBAIN. Nov. 3, 1958 [Nov. 7, 1957], No. 35188/58. Class 140. A process for manufacturing sheets, boards and shaped pieces of thermoplastic mineral fibres comprises subjecting the major surfaces of a mat to a sudden increase in temperature such as to cause a reduction in the mat thickness and at the same time subjecting the mat to tension such that there is little reduction in the size of the mat other than in thickness. As shown, a funnel furnace 1 has electric resistance heating elements 2, 2a and driven idlers 3 and 3a in which is carried the mat 4 of fibres being treated. Rollers 3 are cooled and their speed is slightly less than that of the sheet. Adjacent the outlet of the furnace are cooled calender rolls 5 and 5a, which draw the sheet through the furnace, and immediately beyond are boxes 7 and 7a having a cooling fluid passing through them, and beyond these are driven rollers 8 and 8a whose peripheral speed is a little higher than the speed of the sheet. Before treatment in the above process the fibres can have been agglomerated, felted and bonded together to form the mat. On entering the furnace the mat is thick and upon its upper and lower surfaces being subjected to heat from elements Z and Za it undergoes a collapse which is progressive and very rapid. The mat may be formed of at least two different categories of fibres consisting of a material of the same composition but of different thermoplastic properties in that one has a softening point substantially lower than the other.
Patent GB-1528048-A (GB)
Title: Programmable acoustic wave frequency discriminator
IPC: H03J5/24
Filed: 1975-08-26
Abstract: 1528048 AFC systems; frequency discriminator NATIONAL RESEARCH DEVELOPMENT CORP 18 Aug 1976 [26 Aug 1975] 35257/75 Heading H3A A frequency discriminator with an ajdustable centre frequency for controlling an oscillator in an AFC loop comprises an acoustic wave delay line 6 including input, output transducers formed on a substrate, one of the transducers including a plurality of spaced apart elements, a phase detector 16 connected to receive the input, output signals of the line 6 and a switching arrangement 21-27 for selectively connecting one of the plurality of transducer elements to the phase detector. The VCO may be an LC oscillator or a surface acoustic wave oscillator. The switching arrangement employing PIN diodes, Varactor or NIP diodes or a variable gain amplifier arrangement or a rotary switch (Fig. 2, not shown) enables the oscillator frequency to be varied in discrete steps. A rapid change in the VCO frequency may be achieved by over-riding the VCO control voltage by an appropriate voltage from a low impedance source. Limiting amplifiers 15, 17 may be used ahead ofthe phase detector 16 to derive a sawtooth control voltage for the oscillator.
Patent GB-1160413-A (GB)
Title: Improvements in and relating to Heated Food-Conveyors.
Inventor: DOHERTY HAROLD IAN
IPC: A47G23/04
Filed: 1965-08-18
Abstract: 1,160,413. Portable food-containers. EDWARD DOHERTY & SONS Ltd. 16 Nov., 1966 [18 Aug., 1965], No. 35375/65. Heading F4W. In a heated food conveyer comprising a transportable container 1 having fibreglass heat insulating pads 22 for the walls, the front wall which is removably attached by an inturned flange 3 engaging a ridge 5 and a shallow tray 6 for carrying the food are both formed from the same piece of sheet metal. The tray 6 slides into the container between a partition 7, which with the base 23, front wall 20 and rear wall 21 defines a heating chamber 15, and horizontal flanges 11 of angle strips 12 secured to the end walls (13) and 14 of the container. Charcoal is burnt in a fuel pan within a drawer 16 which can be removed through an opening in end wall (13) the opening being covered by an end plate held in place by a freely turnable eccentric disc or turnbutton. An opening in the end plate allows combustion air to enter. The walls 4, 21, 20 and 23 and the partition 7 are bent up from a single metal sheet, the ends of which are folded together to form the ridge 5.
Patent GB-1400341-A (GB)
Title: Push button key switch assembly
IPC: H01H1/40
Filed: 1973-07-25
Abstract: 1400341 Push button key switch DATANETICS CORP 25 July 1973 [26 July 1972] 35395/73 Heading H1N A push button key switch assembly comprises in a housing 11 a keystem 46 movably mounted to be actuable through a linear stroke movement between an unoperated position and a depressed condition, a sealed diaphragm switch 75 mounted in a groove 29 in the housing with its actuating surface oriented parallel to the stroke movement of the keystem and a spring 65 carried by the keystem to engage the actuating surface of the switch when the key is depressed. A return spring 85 returns the key to its normal unoperated position after operation. The spring 65 is V-shaped and its angle is held normally by a notch in the housing, the feet of the spring being in a groove in the keystem. This groove is longer than the span of the feet of the spring so that when the key is depressed due to pressure on key cap 52 the feet initially slide on the keystem and the spring 65 does not move until the upper foot meets the end of the groove when the spring is jerked out of the notch and drops on to the diaphragm switch to operate it. This lost motion enables the key to operate the diaphragm switch and yet have a long travel, the snap as the spring leaves its notch giving a tactile signal of operation. During further depression of the key the spring slides over the diaphragm switch to give a roller contact. The switch terminals project from the bottom of the housing and may be tags for soldering or of leaf spring form. In a further embodiment two diaphragm switches are mounted in the housing.
Patent GB-1082979-A (GB)
Title: Reciprocating liquid dispensing pumps
IPC: B05B11/00
Filed: 1964-08-28
Abstract: 1,082,979. Reciprocating pumps. AEROSOL INVENTIONS & DEVELOPMENT S.A. (A.I.D.) Aug.28, 1964 [Oct.22, 1963], No.35411/64. Heading F1A. In a reciprocating atomizer pump, adapted to be mounted on a liquid container 90, the cylindrical piston portion 106 of resilient material, e. g. rubber, is arranged to close an air vent opening 104 in the cylinder wall in its uppermost position.
Patent GB-619282-A (GB)
Title: Improvements in and relating to plaster board, plaster slabs, blocks and the like
IPC: B28B19/00
Filed: 1946-11-29
Abstract: 619.282. Plaster board &c. PLASTER PRODUCTS (GREENHITHE), Ltd., and ELLIOTT, A. G. Nov. 29. 1946. No. 35479. [Class 87(i)] [Also in Group V] A plaster - board, block or slab a faced with paper liners b is reinforced by paper, cardboard or thin metal tubes e by a continuous process. The liners may extend over the edges of the board.
Patent GB-299232-A (GB)
Title: A hanger or coupling for use in connection with electric insulators
IPC: H01B17/04
Filed: 1927-12-31
Abstract: 299,232. Steatit-Magnesia Akt.-Ges. Oct. 26, 1927, [Convention date]. Insulators.-A double hanger for insulators has its ends a, b made of different sizes connected by a conical stepped portion e so as to correspond to different sizes of the sockets of insulators, clamping devices, &c. for the purpose of connect. ing each end of the hanger to sockets of different sizes.
Patent GB-1394860-A (GB)
Title: Spray apparatus
IPC: G01S7/02
Filed: 1972-07-28
Abstract: 1394860 Coating apparatus SOC DE FABRICATION D'INSTRUMENTS DE MESURE 28 July 1972 [30 July 1971] 35494/72 Heading B2L  In a spray coating apparatus the emission from a gun or guns 4 is controlled by a radar emitter 5 and detector 6 in dependance upon the position of a surface 14. When the surface is located in position the spray operates and when no surface is located on the axis 10 of the spray the output on line 18 from the detector 4 shuts off a valve in the supply of coating medium. The spray head can be moved transversely of the direction of movement of the body 14 on bars 2, 3. Two spray heads are inclined upwardly and one downwardly one above the other may be provided and arranged to work such that when they are moving downwardly only the downwardly inclined head sprays and viceversa.
Patent GB-794410-A (GB)
Title: Method of removing water from halogenated hydrocarbons containing water
IPC: C07C17/38
Filed: 1956-11-21
Abstract: 794,410. Liquid halogenated hydrocarbons. COLUMBIA-SOUTHERN CHEMICAL CORPORATION. Nov. 21, 1956 [Nov. 21, 1955], No. 35529/56. Class 2 (3). The invention comprises a method of removing water from a liquid halogenated hydrocarbon by contacting such liquid halogenated hydrocarbon with an aqueous solution of metal salt, cooling the liquid halogenated hydrocarbon to a temperature below its cloud point but still above the freezing point of the system while in such contact and thereafter separating the liquid halogenated hydrocarbon from the aqueous solution of metal salt. In a preferred procedure, the liquid halogenated hydrocarbon is contacted with an aqueous solution of calcium chloride (containing 20-55 per cent of calcium chloride). Aqueous solutions of copper chloride, iron chloride potassium chloride, sodium chloride or barium chloride may also be used. In an example, trichloroethylene having a cloud point of minus 6 C. is obtained from trichloroethylene having a cloud point of 19 C. by the process of the invention. Other compounds that may be treated include perchloroethylene, chloroform, carbon tetrachloride and tetrachloroethane.
Patent GB-410243-A (GB)
Title: Improvements in cylinders for hydraulic systems
IPC: B60T11/22
Filed: 1932-12-15
Abstract: 410,243. Fluid - pressure brakes. AUBIN, E., Elmstead, West Wittering, near Chichester, Sussex, and CLAREMONT, A. W., Vernon House, Sicilian Avenue, Bloomsbury, London, (Representatives of ROYCE, SIR F. H.) Dec. 15, 1932. No. 35608. [Class 103 (i).] The master cylinder of a hydraulic system communicates with the reservoir at a point beyond the normal travel of the piston by a conduit e controlled by a valve g, held open in the inoperative position of the piston by an arm h rigid with the brake pedal b<3> and closed by a spring g<2> as the piston begins its stroke.
Patent GB-354140-A (GB)
Title: Improvements in the connection fitments of mudguards and carriers for cycles and thelike
IPC: B62J15/02
Filed: 1930-11-28
Abstract: 354,140. Cycle mudguards and carriers. GORTON, W. A., 333, Farm Street, Hockley, Birmingham. Nov. 28, 1930, No. 35800. [Class 136 (i).] Stay connections for cycle &c. mudguards and luggage-carriers comprise an attachment plate 2 secured to the mudguard &c. 1 and provided with a slot 3, and a clip member secured to the bridge part of a looped stay 7 and provided with arms 9, which are adapted to pass through the slot 3 into the space between the mudguard and the plate 2, the stay being then turned to bring the arms athwart the slot. The clip member may have a circular head 8 adapted to fit into an enlarged central part 4 of the slot 3. When turned into the staysecuring position, the arms 9 engage stops formed by tongue-pieces 10 or other parts bent from the plate 2 into the space between the plate and the mudguard. In a modification, the slot 3 and the arms 9 are arranged transversely to the mudguard and stay bridge respectively.
Patent GB-430906-A (GB)
Title: Improvements in or relating to the manufacture of chlorinated rubber
IPC: C08C19/12
Filed: 1933-12-20
Abstract: Carbon tetrachloride and alcohol may be recovered from mixtures thereof by distilling the liquid to obtain a constant boiling mixture of carbon tetrachloride and alcohol and a residue of alcohol and distilling the residue to obtain pure alcohol; the constant boiling mixture is treated with water to obtain a carbon tetrachloride layer and an aqueous alcohol layer which are separated, the aqueous alcohol layer being subjected to distillation to obtain pure alcohol.ALSO:Solid chlorinated rubber is obtained from solutions thereof by contacting the solution with an excess of a liquid precipitant maintained in a state of agitation by means of a stirring arrangement; the precipitant being a liquid which is without chemical action on chlorinated rubber and which mixes with the solvent in the chlorinated rubber solution to produce a mixture having substantially no solvent power for the chlorinated rubber. The solution of chlorinated rubber may be squirted as a thin stream or in a finely divided form through nozzles onto the surface or below the surface of the precipitant.  In an example, a solution of chlorinated rubber in carbon tetrachloride is contacted with a lower aliphatic alcohol, e.g. methyl alcohol; the precipitated chlorinated rubber may be removed and washed with methyl alcohol as described in Specification 433,196.  Carbon tetrachloride and alcohol may be recovered from the mixture thereof remaining after the removal of the precipitated chlorinated rubber by distilling the liquid to obtain a constant boiling mixture of carbon tetrachloride and alcohol and a residue of alcohol and distilling the residue to obtain pure alcohol; the p constant boiling mixture is treated with water to obtain a carbon tetrachloride layer and an aqueous alcohol layer which are separated, the aqueous alcohol layer being subjected to distillation to obtain pure alcohol.  Specifications 378,272 and 420,116 are referred to.
Patent GB-1420274-A (GB)
Title: Composite ornamental board and manufacture thereof
IPC: B44C3/08
Filed: 1973-07-30
Abstract: 1420274 Laminated products; forms of wood TOKYO PLYWOOD KK 30 July 1973 [3 Aug 1972 20 June 1973] 36077/73 Headings B5N and B5L A composite ornamental board, comprises a base board 2 having its upper surface 3 polygonal, preferably quadrilateral, e.g. rectangular, its under surface of the same shape as the upper surface but larger in area, and its edges 4 each in the form of a quadrilateral with only two of its sides parallel and inclined at an acute angle to the plane of the upper surface, and a single piece 8 of veneer lined with soft fibrous material 7 and bonded firmly by a bonding agent 6 to said upper surface and edges, with its unlined surface uppermost. The base board may be of wood, plywood, particle board or asbestos cement board. The adhesive may be thermoplastic or thermosetting. The veneer, which may be of timber may have U-shaped cuts made in its periphery to assist bending during bonding. The composite board may be made by applying a bonding agent to the upper surface of the base board and to the edges thereof, placing a single piece of lined veneer of appropriate size and shape on the upper surface of the base board, placing the resultant assembly on a perforated table 11 provided with means, e.g. pump 13 for applying suction through the perforations 12, covering the assembly with an elastic membrane 9 making airtight contact with the table around its edges, and drawing the membrane down upon the assembly by suction to press the veneer against the upper surface of the base board and cause it to adhere thereto and to bend its margins into contact with and cause it to adhere to the edges of the base board, after which air is admitted and the membrane removed. In the embodiment shown, a plurality of assemblies each on support bars 10 are bonded in one operation and the membrane 9 is clamped by frame 15 operated by elevating and lowering means 18.
Patent GB-1426080-A (GB)
Title: Process for drawing multi-component acrylic continuous yarns  and yarns obtained thereby
IPC: D01F8/08
Filed: 1973-07-30
Abstract: 1426080 Acrylic conjugate filaments SNAM PROGETTI SpA 30 July 1973 [31 July 1972] 36254/73 Heading B5B A continuous filament yarn in which each filament comprises a plurality of conjugate components formed of acrylic homo- and/or copolymers having different chemical or physical characteristics is drawn at a draw ratio of 1 : 3 to 1 : 10 in water at 90‹ to 100‹ C. or in steam at 100‹ to 180‹ C.; subjected while under tension to a temperature of 80‹ to 170‹ C. for a time of 0À2 to 20 seconds; and the drawn yarn collected. Each component in the filament may be a copolymer of acrylonitrile, methyl acrylate and sodium methallyl sulphonate. In an example, a dry-spun two component yarn is drawn to a ratio of 5 : 1 during passage from feed rolls 2 through a steam oven 3 at 150‹ C. to rollers 4; the rollers 4 are heated to 140‹ C. and the yarn is wound on them for 20 turns, producing a yarn of 50 denier having a shrinkage in water at 100‹ C. of 15%. In general, yarn so made has a shrinkage in water at 100‹ C. of 12 to 30%
Patent GB-1277121-A (GB)
Title: Improvements in apparatus for transporting and feeding sacks and similar pliable containers into a sewing machine for their sealing
Inventor: CERIONI RENZO GUISEPPE
IPC: B65B7/06
Filed: 1969-07-19
Abstract: 1277121 Closing sacks EL CU ELETTROCUCITRICE INDUSTRIALE PORTATILE SpA 19 July 1969 36449/69 Heading B8C A filled sack 13 is gripped and fed to a position between opposed endless belts 22, 23 which are then pivoted towards one another to clamp the sack therebetween and feed it by way of second opposed belts 20, 21 to a sewing machine 15 for closure. The belts 22, 23 are mounted on arms 32, 33 pivoted about the axis of belt pulleys 34, 35 and connected by linkages 42, 44 and 43, 45 to an actuating member 47. The actuating member 47 is urged by a spring 48 to close the arms 32, 33 together and bears a rack 56 engaged by a pinion 55 for moving the member 47 to separate the arms 32, 33, the member 47 being held in the arm-separated position by a hook 49 thereon being engaged by a claw 50. A sensor 54a, when a sack has entered between the belts 22, 23, actuates a solenoid 53 to release the claw 50 from the hook 49, the arms 32, 33 then closing together. When the sack has been fed from between the belts 22, 23 a sensor 61a activates an electric clutch 60 so that the pinion 55 causes the member 47 to separate the arms 32, 33.
Patent GB-1512458-A (GB)
Title: Liquid treatment apparatus with hollow fibre membranes
IPC: A61M1/18
Filed: 1975-09-04
Abstract: 1512458 Hollow fibre membrane apparatus ASAHI KASEI KOGYO KK 4 Sept 1975 [7 Sept 1974 1 Nov 1974] 36455/75 Heading B1E A liquid treatment apparatus, e.g. blood dialyser, comprises a vessel 6 containing a U- shaped bundle of semi-permeable hollow fibres 3, each end portion of the bundle being gathered and bonded together with the hollow ends open to allow passage of a liquid through the fibres, the vessel having top and bottom faces connected by a side wall structure where 1) the top face has two spaced-apart openings 1, 9 to which the two ends of the bundle of fibres are fixed in liquid-tight connection to form an inlet and outlet for a liquid flowing inside the fibres, 2) the bottom face has at least one opening 4 for passage of liquid flowing within the vessel and outside the fibres, 3) the upper portion of the vessel has a plurality of openings 7 for passage of liquid flowing outside the fibres, 4) the interior of the vessel is constructed to constrain the bundle of fibres in their U-shaped configuration, the hollow fibres in the bundle being equal in length so that when the bundle is arranged in U-shaped configuration the fibres in the unbonded portion of the bundle spread outwards since the fibres forming the inner periphery of the U-shape have substantially the same length as the fibres forming the outer periphery.
Patent GB-1114986-A (GB)
Title: Improvements in plugs for container closures
IPC: B65D39/08
Filed: 1966-08-15
Abstract: 1,114,986. Stoppers. RHEEM AUSTRALIA PTY. Ltd. 15 Aug., 1966 [1 Sept., 1965], No. 36465/66. Heading B8T. A resilient plastics &c. stopper (1), Fig. 2 (not shown), for a bunghole bush in a drum, has a base wall integral with a cylindrical side wall (2) externally threaded over its lower end (8) but thickened at its top end to form a radially extending bead (4, 5) having outwardly and inwardly directed surfaces, the former seating against the mouth of the bunghole bush (10), Fig. 4 (not shown). A groove (9) extends around the top face of the stopper (1), so that when it is screwed home in the bunghole bush (10) flexing of the bead (4, 5) is permitted. Accordingly the bead (4, 5) engages sealingly all the way round the bunghole bush (10). Two radially-directed strengthening ribs (7), Fig. 1 (not shown), are moulded inside the side wall (2), as are two lugs (6) for engagement by a tightening &c. spanner.
Patent GB-1281110-A (GB)
Title: Remote control steering
IPC: A63H30/02
Filed: 1970-07-28
Abstract: 1281110 Toy ears W H MULLER [trading as SCHREYER & CO] 28 July 1970 [28 July 1969] 36480/70 Heading A6S [Also in Division H1] A remote control steering device applied to a toy car, comprises a hand-held battery unit 22, Fig. 2, with a miniature steering wheel 26 arranged to operate movable switch contacts 30, 31 of a switch controlling a reversible electric motor 2, Fig. 1, on the toy car, and coupled to the steering mechanism 6, 14. In the particular arrangement shown the steering wheel 26 moves the contacts through a friction clutch 29, 29' whereby damage to the switch is avoided if the steering wheel is turned too far. A return spring (not shown) or one of the contact springs 30 may normally centralise the steering system to isolate the steering motor so that the car remains in the steered position until the motor 2 is reversed. Push buttons 25, 25' on the unit 22 control the forward and reverse drive of the drive motor 21 in the car and having a friction roller 21" engaging one of the tyres 14" of the car.