baber/WOPTO huggingface dataset:
Patent GB-1357961-A (GB)
Title: Piston pumps
IPC: F04B1/00
Filed: 1971-06-17
Abstract: 1357961 Reciprocating pumps L R PENN 8 June 1972 [17 June 1971] 28480/71 Heading F1A A pump, e.g. for viscous materials, comprises a cylinder 6 with an outlet 13 and an inlet 2 which is brought into communication with the cylinder towards the end of the piston suction stroke. The piston 11 has a resilient flange 26 which permits flow of material from the inlet into the cylinder before the piston moves out of the cylinder. Cylinder sleeve 5 may be internally coated with P.T.F.E. A collar 4 supports a supply reservoir. Piston-rod 23 is supported by a bearing 15 incorporating a lubricant supply fitting 16. In Fig. 2 (not shown), two pumps of the same or different capacities are disposed coaxially on either side of a reciprocating fluid motor connected to the pump piston-rods. In Fig. 3 (not shown), a plurality of pumps are disposed with their cylinders parallel and their piston-rods connected at spaced intervals to a common pivoted lever oscillated by a crank, the lever pivot being adjustable to vary the stroke. In Fig. 4 (not shown), the pump is double-acting with a central inlet and end outlets, and driven by a fluid motor.
Patent GB-603694-A (GB)
Title: Improvements in electric circuit-breaking devices of the fluid blast type
IPC: H01H33/98
Filed: 1945-10-29
Abstract: 603,694. Oil-blast switches. COOKE & FERGUSON, Ltd., and BUTTREY, R. N. Oct. 29, 1945, No. 28545. [Class 38 (v)] Separation of arcing contacts e, f generates gas and liquid pressure which separates one or more pairs of series-connected interrupting contacts g, h against the action of springs k, thereby allowing the arc products to be ejected through the nozzles in contacts g, h. The latter are arranged in. an insulating tube i containing oil, and separated from one another and from the contacts e, f by apertured insulating barriers u. Reclosure of the contacts h is delayed by a dash-pot action produced by flanges r, q on the contact h and its cylinder m, contact between the cylinders m and contacts h being maintained by balls n. Either nozzles g or h may be replaced by solid contacts. The contact e is urged downwards by a spring c which at its lower end bears on one contact b of a series isolator, the movable contact of which is lowered to initiate opening of the circuit, Fig. 2 (not shown).
Patent GB-840048-A (GB)
Title: Trivinyltin hydroxide and a process for its preparation
IPC: C08F30/04
Filed: 1957-09-10
Abstract: Trivinyl-tin hydroxide forms copolymers with vinyl chloride, styrene, vinyl silanes, methyl methacrylate and acrylates.  It may also be used as a stabilizer in polyvinyl chloride compositions, as may be epoxyethyl tin hydroxide obtained from it by epoxidizing the unsaturated linkage(s).ALSO:The invention comprises trivinyl tin hydroxide which is prepared by reacting trivinyltin chloride or bromide with a basic compound in aqueous solution containing sufficient hydroxyl ions to replace all the halogen atoms by hydroxide.  Specified bases include sodium and potassium hydroxides, carbonates and bicarbonates, ammonium hydroxide, aniline, pyridine, morpholine, tetraalkyl - ammonium hydroxides, calcium oxide and hydroxide and barium hydroxide.  The trivinyltin chloride and bromide may react with the aqueous solution in the pure state, or it may react in solution in an inert hydrocarbon or organic solvent (e.g. benzene, toluene, pentane, hexane, cyclohexane, an alcohol or ether). An inert atmosphere such as nitrogen may be maintained during the reaction if desired.  Epoxyethyl tin hydroxides may be obtained by epoxidizing the unsaturated linkages in trivinyltin hydroxide.
Patent GB-1494060-A (GB)
Title: Heat exchangers
IPC: F28F3/10
Filed: 1976-07-12
Abstract: 1494060 Plate heat exchangers CHAFFOTEAUX ET MAURY 12 July 1976 [10 July 1975] 28939/76 Addition to 1430491 Heading F4S In a heat exchanger of the kind described in the parent Specification, sealing between adjacent peripherally flanged circular plates 1 of the stacked is effected by means of a resilient sealing gasket 30 comprising a first sealing ring 31 disposed around the inner periphery of the flanged rim 3 of each plate 1 and a second sealing ring 32 surrounding the larger collar 13 of each plate opening 11. Preferably the two rings are integral with one another and constitute a one piece sealing gasket 30. The plate stack with the interposed sealing gaskets is held in a compressed state by clamping means comprising threaded rods 37 passing through holes 35, 36 in end plates 33, 34 bounding the stack; the end plates maybe triangular in shape. In a modified form of sealing gasket (Figs. 4 and 5, not shown), the sealing ring 32 surrounding each collar 12 is formed with V-shaped annular grooves (39) in the opposite faces thereof contacting the base portions of adjacent plates, said grooves (39), together with a radially extending notch (40) in the common portion of the two rings 31, 32 and the interstice (41) between the interfitting rims (3) of the two adjacent plates in question, defining a flow path for venting leakage fluid to atmosphere and so prevent possible intermixing of the two heat exchange fluids.
Patent GB-722244-A (GB)
Title: Improvements in or relating to the assembly of thermionic valves
Inventor: SMYTH JOHN ARUNDEL
IPC: H01J9/04
Filed: 1952-11-17
Abstract: 722,244. Thermionic-cathode tubes. STANDARD TELEPHONES & CABLES, Ltd. Nov. 17, 1952, No. 28953/52. Class 39 (1). The heater 4 is inserted into the cathode sleeve 3 of a thermionic valve through a funnel-shaped guide 1 whose smallest diameter is just less than the sleeve. The guide is mounted on a spring strip 2 which lifts it clear when not required. The guide may be in two parts separating laterally.
Patent GB-1174743-A (GB)
Title: An Improved Method for Providing a Pipeline with a Pipeline Pig
Inventor: SCOTT PAUL RAY
IPC: F16L55/42
Filed: 1968-06-19
Abstract: 1,174,743. Cleaning tubes. SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ N.V. 19 June, 1968 [21 June, 1967], No. 29188/68. Heading F2N. A method for providing a pipeline with a pipeline pig comprises introducing reactable materials to form in situ a plastics or elastomeric plug within the pipeline or, within a chamber communicatable with the pipeline. As shown a station 15 for introducing a plug 16 into the pipeline 14 of a system H, is first drained of water through a pipe 28 by opening valves 20, 29 so that an inert gas, e.g. methane or nitrogen, from a storage vessel 32 is allowed to pass along a pipe 33 and through a valve 31 to fill the space 23 within the station 15. A number of pumps 40-43, driven by a common motor M, deliver plug forming materials respectively from storage vessels 48, 45, 47, 46, through branch pipes 35-38 and a mixer 39 into the space 23 within the station 15. The plug 16, formed in the chamber 23, can be introduced into the pipeline 14 by closing a valve 13 and opening valves 18, 19, 20 so that pressurized fluid in a supply pipe 12 urges the plug 16 into the pipeline 14, past a detector 49, and the pipe system 11 after which the valve 13 is opened and the valve 18 closed. The storage vessel 48 contains a solvent e.g. benzene and the vessels 45, 46, 47 contain specific materials to form the plastics plug 16 in situ e.g. a plug made of foamed polyurethane, the foaming being accomplished by the introduction of a volatile material. Any suitable catalyst can be introduced from vessel 47, e.g. triethylamine. Colour additives for identification purposes can also be added. As the plug 16 leaves the station 15, which is lined with a lowfriction plastics material, it is radially compressed as it passes into the pipeline 14 through a reduced neck portion 24. Other materials stated to be suitable for forming a resin foam plug are a liquid epoxy resin containing a plurality of terminal epoxy rings, a volatile chlorofluorocarbon, an emulsifying agent, and a co-ordination compound of boron trifluoride.
Patent GB-492931-A (GB)
Title: Improvements in printing and dyeing with the ester salts of leuco vat dyestuffs
Filed: 1937-10-26
Abstract: Vat dyes, dyeing with; printing.-In dyeing or printing with ester salts of leuco vat dyestuffs the material is, without pre-treatment, padded or printed with a preparation containing, besides the ester salt and the usual additions, ammonium chlorate and, as catalyst, ammonium vanadate and the colour is then developed by suspending the material at ordinary or slightly raised temperature.  The preparation contains also ammonium persulphate when the dyestuff is one which is developed only with difficulty from the ester salt.  The ammonium chlorate and ammonium persulphate may be replaced by reagents from which they are formed in the padding or printing preparation. Numerous examples are given of the compositions of suitable aqueous printing pastes containing the ester salt, ammonium chlorate, ammonium vanadate and, in some cases, ammonium persulphate and ammonia, in admixture with starch tragacanth thickening and thiodiglycol, with or without some phenol and urea.  Cotton is printed with such a paste, dried, suspended overnight preferably at 40-50 DEG  C. or, in some cases, for 48 hours at room temperature. An example is also given of a suitable padding composition, which is applied to the goods and similarly developed.  Specifications 203,681, 281,336, [Class 15 (ii)], 289,154, [Class 2 (iii)], and 306,800, [Class 15 (ii)], are referred to.
Patent GB-393266-A (GB)
Title: Improvements relating to the production of water-free ethyl alcohol
IPC: B01D3/00
Filed: 1931-10-22
Abstract: In a process for the dehydration of alcohol as described in Specification 368,793 in which alcohol vapour is treated in countercurrent with a solution of an anhydrous hygroscopic salt, e.g. dissolved in absolute alcohol, e.g. potassium acetate or with a mixture of potassium and sodium acetates as described in Specification 393,265, these salts may be displaced wholly or in part by other acetates or by alkali or alkaline-earth salts of other fatty acids, e.g. formates, propionates, &c.  Lithium acetate is particularly suitable also magnesium or calcium acetate.  A suitable mixture comprises 70 parts potassium acetate, 20 parts sodium acetate, and 10 parts calcium acetate.
Patent GB-187470-A (GB)
Title: Improved means for securing handles to handbags and the like
IPC: A45C13/26
Filed: 1921-11-04
Abstract: 187,470. Latham, H. G., and Cox, H. C. Nov. 4, 1921. Bags; purses.-Attachments for securing the ends of a handle to a hand-bag &c. comprise plates a, b adapted to be riveted together, gripping the material of the bag between them, and a ring e connecting the outer plate b to a clip f having teeth f<1> and adapted to be clinched over an end of the handle.
Patent GB-997962-A (GB)
Title: Improvements in dryers for removing moisture from webs of paper
IPC: D21F5/02
Filed: 1961-08-15
Abstract: 997,962. Drying apparatus. BLACK CLAWSON CO. Aug. 15, 1961 [Aug. 15, 1960] No. 29406/61. Heading F4G. Apparatus for drying a web of paper as it passes around a cylinder comprises a number of individual drying units or chambers arranged side by side across the direction of movement of the web, each discharging drying gas on to the web, and each provided with separate means for controlling the supply of this gas. A cross-section of one unit is shown. The upper part is divided into an inlet duct 74 and an outlet duct 75. These combine with the corresponding parts of the other units to form inlet and outlet manifolds which are connected at one end with external ducts for the supply of hot air and return of moist air. The other end of each manifold is closed by an inspection door. The floors 65 of ducts 74 and 75 have openings that can be partially or completely closed by sliding-plate clampers carried on rods 110 actuated by air motors 115, of which there is one for each unit. Hot air from the duct 74 enters the chamber 85 and is diretted by the nozzles 90 on to the web passing over the cylinder 33. The nozzles 97 at the ends of the unit direct the air somewhat inwards. Between the nozzles 90 are rows of orifices through which moist air can return to the chamber 84 and thence to the duct 75. The units are assembled with the aid of tie-rods 130 fitted at their ends with springs to allow for thermal expansion, and the whole assembly is mounted on jacks so that it can be lifted away from the cylinder.
Patent GB-1505670-A (GB)
Title: Production of flocked rollers
IPC: B05C17/02
Filed: 1975-07-14
Abstract: 1505670 Rollers FELIX BOTTCHER 14 July 1975 [13 July 1974] 29513/75 Heading F2U A roller having a surface of flock fibres 3 has a base 1 with an adhesive coating 2 securing the flock fibres 3 to the base 1 and an additional film 4 is provided to additionally secure the flock fibres 3. The film 4 may have an affinity for the fibres 3 and so coat them (Fig. 3, not shown) or it may have a thickness such that it completely encloses the flock fibres 3, which then act as reinforcement (Fig. 5, not shown). The roller base 1 may comprise a metal core and an outer layer of chloroprene rubber or nitrilebutadiene rubber. The adhesive 2 is applied to this and the roller is then electrostatically flocked with, for example, polyamide fibres, and then the film 4 applied in one or more layers. The film 4 may be applied as a dispersion of nitrile-butadiene rubber or a solution of styrenebutadiene rubber. Other fibres which may be used comprise cotton, linen, jute, hemp, wool, cellulose derivatives or various synthetic resin fibres. The roller may be used in printing, for applying ink or dampening with water, the surface being oleophilic or hydrophilic.
Patent GB-687355-A (GB)
Title: Improvements in roofs for buildings
IPC: E04B7/20
Filed: 1949-11-18
Abstract: 687,355. Roofs. BOULT, P. T. O. Nov. 2, 1950 [Nov. 18, 1949], No. 29519/49. Class 20(iv) The principal rafters of trussed roofs covered by metal units each comprising a load bearing member 10 with a sheet or cladding 11 extending from its wider edge and engaging along the opposite side the one within the other with an adjacent unit are constituted by the load bearing members of corresponding units placed on either side of the ridge. The lower end of each rafter is supported on the wall to which it is secured by a bracket 13 and its upper end is bolted at the ridge to the other rafter. One or more purlins 15 are bolted to the rafters the number depending upon the roof span and a tie beam 18 is secured to the lower end of each rafter or bracket 13. Struts 19 extend from the nurlins to the tie beams and another strut 21 shown as of circular section with an eye 22 at its upper end bolted to the rafter is also secured to the tie beam near to the point of connection of the other strut. Specification 650,094 is referred to.
Patent GB-1195843-A (GB)
Title: Improvements in or relating to Information Storage Devices
Inventor: LEADBEATER DOUGLAS ALBERT
IPC: G06K7/04
Filed: 1966-07-01
Abstract: 1,195,843. Selective signalling. D. A. LEADBEATER. 30 June, 1967 [1 July, 1966], No. 29551/66. Heading G4H. [Also in Division H1] The desired position of a shaft is set up on an array of change-over switches, the fixed contacts of which are cross-connected with those of a further array of change-over switches controlled by cams on the shaft to give a binary coded representation of the shaft position, the motor driving the shaft being energized until a circuit path exists through the series-connected changeover switches. The shaft also carries a disc bearing radially-arranged patterns of holes, the disc is held, when a desired position is reached, by release of an electromagnetic detent, and an electromagnet is energized to rock a set of fingers towards the disc so as to sense the pattern of holes at the desired position and operate switches in accordance therewith.
Patent GB-891416-A (GB)
Title: Abrasive wheel
IPC: B24D13/04
Filed: 1959-08-31
Abstract: 891,416. Abrasive wheels. CARBORUNDUM CO. Aug. 31,1959 [Nov. 14,1958], No. 29600/59. Class 60. An abrasive wheel comprises a pair of hub members detachably connectable to one another to form a hub, a flange on each of said hub members, an annular bead extending inwardly from the inner face of each flange, said beads being concentrically disposed with respect to said hub members, and a plurality of laminiferous segments, each of said segments comprising a plurality of similar sheets of flexible material supporting an abrasive material, the sheets being secured to one another at one end only, and a notch in each side of each segment near the end of the segment where the sheets are secured to one another, said notches being complementary in shape to the beads on said flanges, said beads and notches co-operating to anchor securely said plurality of laminiferous segments in position when the latter have been loaded between the two hub members with their notches aligned with the annular beads and the hub members have been connected to one another. Interfitting hub members 10, 12 have flanges 11, 13 provided with annular beads 20, 21. Hub member 10 has bolt-receiving bores 17 and the hub member 12 has threaded bolt-securing holes .18. Segments 14 are each made up of a plurality of similar sheets 15 coated with abrasive material on one side thereof and adhesively secured to one another at their one ends; notches receive the beads 20, 21. The adhesive may be such that a segment can be broken into smaller segments by pulling apart the free ends of the sheets. The sheets may be of soft cloth coated or impregnated with an abrasive buffing or polishing compound and may then be secured together by stitching instead of by adhesive. The sheets may have a contour appropriate to the work to be done. The combined weight of the hub members 10, 12 is appreciably greater than the total weight of the segments 14.
Patent GB-159583-A (GB)
Title: Improvements in kettles and like appliances
IPC: A47J36/00
Filed: 1919-11-28
Abstract: 159,583. Tod, D. V. Nov. 28, 1919. No Patent granted (Sealing fee not paid). Convection currents, promoting; spouts. - A kettle which can be heated with a comparatively small consumption of gas, and can give a small and quick supply of very hot water comprises an upper and lower chamber, to either of which a spout can be connected. The shell 1 of the kettle is provided with an extension 2 which forms a heating-chamber 4, containing pipes 6 which connect a central chamber 8 with the outer portions of the bottom, through apertures 5. A vertical pipe 9 connects the chamber 8 to the spout which is a rotatable tube 10 provided wih a port 16 adapted to register with ports 12, 13 in an outer sleeve 11, and through which water may be drawn from either the lower or upper chamber of the kettle on rotating a knob 15. The upper and lower chambers are put into direct communication to promote convection currents by withdrawing the tube 10, which is closed at the end 17, clear of the ports 12, 13. A packing- gland 14 is provided around the spout.
Patent GB-371286-A (GB)
Title: A device for forming sand tees for playing golf
IPC: A63B57/00
Filed: 1931-10-28
Abstract: 371,286. Golf tees . TYDEMAN, H. L., 5, Lyncroft Mansions, Fortune Green Road, West Hampstead, London. Oct. 28, 1931, No. 29904. [Class 132 (ii).] A device for forming sand tees comprises a mould 1, a sleeve 7 screwed therein, a tubular finger-piece 5 slidable over the sleeve and a slidable pin 2 the lower end 4 of which is adapted to eject the tee when the pin is depressed against the action of a coil spring 6. A leather washer 8 prevents the ingress of sand to the bearing surface of the pin. In a modification the sleeve 7a, Fig. 4, is formed integral with the mould 1.
Patent GB-465061-A (GB)
Title: Mortise window or door fastener
IPC: E05C1/12
Filed: 1935-10-30
Abstract: 465,061. Fastenings. CREED, T. C. H. Oct. 30, 1935, No. 29956. [Class 44] A sliding bolt C is operated by a pin H carried by a plate A provided with a handle and adapted to be moved in a guide B. The pin H engages a cam slot G in the bolt. A lug J on the plate A rests on a lug I on the guide B when the plate is at the top of its upward movement.
Patent GB-350859-A (GB)
Title: Improvements in and relating to fans suitable for induced-draught installations
IPC: F23L17/00
Filed: 1930-10-07
Abstract: 350,859. Screw fans. SCHMIDT'SCHE HEISSDAMPF-GES., 2, Rolandstrasse, Wilhelmshohe, Cassel, Germany. Oct. 7, 1930, No. 30037. Convention date, Oct. 16, 1929. [Class 110 (i).] Each blade 2 of an induced draught fan consists of a rapidly tapering cast steel body with a sheet metal extension 3 welded to its trailing edge. The extension has a triangular shape with its apex pointing towards the root of the blade. Different fan diameters are made by fitting different triangular extensions to cast steel blades of the same pattern.
Patent GB-300384-A (GB)
Abstract: 300,384. Fraenkel, E. Nov. 3, 1927. Slabs for walls with rebated and bevelled edges are held against an iron framework 1 by cover plates 2 having internal abutments 3 and a cork lining 4, and secured by staples 5. The slabs and cover plates may consist of concrete, pumice agglomerate, or like material.
Patent GB-273564-A (GB)
Title: Method of removing moulded substantially cap-shaped hollow bodies of cellulose or cellulose derivatives, from their moulds
IPC: B29C33/72
Filed: 1926-11-27
Abstract: 273,564. Wolff & Co., Czapek, E., and Weingand, R. Nov. 27, 1926. Moulding cellulose.-Hollow articles of cellulose or cellulose derivatives are detached from their moulds or mandrels by directing a jet of liquid, as distinguished from air, against the mould etc.; the liquid, e.g. water penetrates between the article and the mould causing it to slip therefrom. The jet of liquid is preferably directed at right angles to the mould and ensures rinsing of the interior of the article and of the mould and also the immersion of the article in the cleaning bath.
Patent GB-1106935-A (GB)
Title: Device for detecting a fluid
IPC: G01M3/04
Filed: 1965-07-15
Abstract: 1,106,935. Actuation of switches. INGENIORSFIRMA G. KARLBOM A.B. 15 July, 1965 [16 July, 1964], No. 30172/65. Heading H1N. A switch for detecting the presence of petrol or oil comprises a body (2) of foamed polystyrene held under adjustable compression between two plates (4, 6) by a spring (8), the plate (4) being fixed. When the body (2) absorbs a petroleum product it softens and allows the spring (8) to move plate (6), a rod 10 thereupon closing contacts (18, 20) to energize a signalling device (22).