baber/WOPTO huggingface dataset:
Patent GB-1341476-A (GB)
Title: Heat insulating multilayered web material
IPC: D06M17/00
Filed: 1971-04-19
Abstract: 1341476 Heat insulating material GLANZSTOFF AG 19 April 1971 [6 March 1970] 22922/71 Heading B5N A multi-layer web of heat insulating material for use in the manufacture of rescue suits and protective clothing comprises several layers of a woven or knitted fabric or fibre fleeces which may be quilted, stitched or bonded together and which include heat-insulating, difficultly combustible and/or flame-proof layers and also if desired layers which are capable of floating or of keeping a body afloat, the layers which are difficultly combustible and/or flame-proof contain or consist entirely of fibres of polyacyloxalamidrazones which contain one or more of the metals zinc, tin, cadmium, barium, strontium, calcium, antimony or tantalum in a chemicallybound form and/or fibres of these metal compounds of polyacyloxalamidrazones with cellulose. The polymer preferably contains at least 15% by weight of chemically-bound metal. The fire-resistant layers suitably comprise 40-100% of the metal-containing fibres, the weight of said layer being 50-300 grams per square metre. The total weight of the multilayer material is suitably 300 to 1000 grams per square metre. Where the fire-resistant material is employed as a surface layer it is preferably in the form of a woven or knitted fabric but when employed as an internal layer of the web fibre fleeces are preferably used. The heat-insulating layer is preferably a fleece of polyester fibres and the layer or layers which enable the material to float or support a weight afloat may be made of the known high strength fabrics of polyamide yarn which are coated to render them waterproof. The surface layer of the material may be metallized.
Patent GB-1509816-A (GB)
Title: Process and apparatus for thermoforming a hollow plastics article
IPC: B29C45/00
Filed: 1976-06-03
Abstract: 1509816 Hollow plastic moulded articles NATIONAL CAN CORP 3 June 1976 [3 June 1975] 22939/76 Heading B5A A thermoplastics heated sheet 102 is formed around porous metal male mould 50 by drawing the sheet on to the mould by vacuum produced by pump 60 and at the same time moving the male mould into chamber 24. A positive pressure forces the sheet against the mould at full extension of the male mould 50.
Patent GB-698889-A (GB)
Title: Improvements in and relating to power control mechanism for winding engines
Inventor: GARDNER ROBERT STEVENSON
IPC: B66B1/12
Filed: 1950-09-19
Abstract: 698,889. Winding-engines. NATIONAL COAL BOARD. Sept. 11, 1951. [Sept. 19, 1950] No. 23946/50. Class 78 (v). In control mechanism for a winding engine comprising a main stop valve controlled by the engineman's handle and a stop device which is moved bv a cam driven in unison with the cage and also is moved by the engine reversing gear, and which stop device is arranged to cooperate with a member which operates in unison with the starting handle so that when the cage is at or near the end of its run, the cam moves the stop device to move the starting handle to the closed, or nearly closed, position, if the handle has not already been so moved, and prevents the handle being moved to the starting position until the reverse gear has been operated, the mechanism includes an auxiliary cylinder and piston assembly to which steam is admitted under the control of the stop device and which acts further to close the stop valve if the steam pressure of the winding engine is excessive. The starting handle is fast on a shaft 23 and is connected to the spindle 27b of the stop valve 27c controlling the supply of steam to the engine by an arm 24, link 25 and lever 26. This lever is pivoted at 26a to the cross-head of a piston rod 27a, the piston 29 of which works in a cylinder 30 against the resistance of a spring 28 of such strength that the lever can be turned to open the valve 27c without compressing the spring. Steam is admitted to and exhausted from the cylinder 30 through a pressure operated piston valve 31 loaded by a compression spring 32. In normal position this valve opens the cylinder to exhaust. An arm 36 pivoted to a fixture 36b is connected bv a link 35, lever 34 and link 33a to an arm 33 fast on the shaft 23. A stop pin 37 on the arm 36 co-operates with a stop 38a mounted on a pivoted sector 38 which is connected by a link 43, lever 44 and link 45 to a valve 46 controlling the passage of steam from a point between the engine side of the stop valve 27c and the valve 31. When the engineman sets the controller for winding coal, the cock 47 is actuated to shut off the steam supply to the valve 31. An arm 39 pivoted to the sector 38 is connected by a link 41 to the engine reversing gear and carries a roller 39a which rides on a cam 40. This cam is mounted on a disc 40a which is driven through reducing gear so that it makes nearly one revolution during the travel of the cage.
Patent GB-442530-A (GB)
Title: Improvements in the preparation of safety paper
IPC: D21H21/46
Filed: 1934-08-08
Abstract: 442,530. Security paper. IMPERIAL CHEMICAL INDUSTRIES, Ltd., Millbank, London, and PAINE, C., and RADLEY, J. A., Hexagon House, Blackley, Manchester. Aug. 8, 1934, No. 22978. [Class 96] Safety paper is made by incorporating into or applying superficially to paper, e.g. less than 0À5 per cent of the free acid, or a water-soluble salt of, 4: 4<1>-di-benzoylaminostilbene-2 2<1>-disulphonic acid or a substitution derivative thereof to make the paper, or parts of it fluorescent when viewed by filtered ultraviolet light. The compounds may be applied by brushing, spraying or printing, by immersing the paper, by addition to paper pulp ; a treated layer may be applied to an untreated layer. Substitution derivatives may include the p-amino, o-chloro, or p-methyl derivatives. In an example, a 0À1 per cent solution of p : p<1>-diamino-4 : 4<1>-dibenzoyldiamino-stilbene-2:2<1>-disulphonic acid sodium salt is sprayed or applied by a water-doctor to paper in a paper-machine. Specifications 292,393, [Class 16], and 417,488 are referred to. The Provisional Specification refers to Specification 18205/11, [Class 2 (iii)].
Patent GB-935010-A (GB)
Title: An afocal front attachment for objectives
IPC: G02B15/00
Filed: 1961-06-26
Abstract: 935,010. Afocal attachments. M. C. SCHNEIDER. June 26, 1961 [Aug. 17, 1960], No. 22979/61. Class 97 (1). The attachment comprises two fixed positive components I and IV with two negative components II and III movable therebetween to vary the magnification, the focal length of the rear component is not more than 75% of that of the front component and the focal length difference between the negative components is not greater than 25%. Optical data are given for one example of the attachment shown.
Patent GB-727819-A (GB)
Title: Improvements in the production of hard, elastic waxes with low shrinkage
IPC: B22C7/02
Filed: 1952-09-16
Abstract: A hard elastic wax is made by mixing (1) an ester which has a hydroxyl number of at least 40 and is derived from a high molecular weight fatty acid and a trihydric or higher polyhydric alcohol with (2) a natural or synthetic resin which has a hydroxyl or acid number and heating the mixture with (3) a di- or poly-isocyanate.  Before, during or after the reaction with the polyisocyanate an amide derived from a high molecular weight fatty acid and an aliphatic, cycloaliphatic or aromatic mono-, di- or polyamine or hydroxyamine may be added.  The Specification exemplifies a large number of suitable fatty acids, polyhydric alcohols and amines.  In example (1) a mixture of the ester of trimethylol propane and an acid mixture derived from oxidizing montan wax, colophony and hexamtehylene diisocyanate is heated to 170-180 DEG  C.  (2) A mixture of the ester of pentaerythritol and montan wax acids, the glycerine ester of colophony, and toluylene diisocyanate is heated.  (3) A mixture of the product of example (2), the amide from cyclohexylamine and a fatty acid derived from the oxidation of paraffin wax, and the diamide from 4.41-diamino-bis-cyclohexylmethane and linoleic acid is heated to about 150 DEG  C.  A dyestuff may be added to the wax.  (4) The product of example (1) is fused with the anilide of rape seed oil acid.
Patent GB-150183-A (GB)
Title: An improved portable inkstand
IPC: B43L25/00
Filed: 1919-09-22
Abstract: 150,183. Scotswood, Ltd., Ellis, W., Hope, R., and Benbow, J. A. Sept. 22, 1919. Inkstands.-A portable inkstand is made of a single slab or block a of wood, papier mÔchÚ, or like material, of thickness equal to or less than the depth of the pots, and having holes c for supporting the pots b flush with the upper surface of the block so that flat lids e can be used. The block is raised on feet g when the pots are deeper than the thickness of the block. A recess f may be provided to hold pens, brushes, &c.
Patent GB-461679-A (GB)
Title: Improvements relating to rubber latex
IPC: C08K3/36
Filed: 1935-08-19
Abstract: Latex is stabilized by mixing therewith the product of the reaction of an acid, e.g. sulphuric, hydrochloric or boric acid, and a solution of a silicate, e.g. sodium silicate, which product contains silica gel and is in a fluid condition; the pH value of the mixture should not be less than 7.  Specification 402,422 is referred to.
Patent GB-484056-A (GB)
Title: Improvements in filtering apparatus
IPC: A62B23/00
Filed: 1937-08-25
Abstract: 484,056. Filtering gases. SOC. INDUSTRIELLE DES TELEPHONES (CONSTRUCTIONS ELECTRIQUES CAOUTCHOUC CABLES). Aug. 25, 1937, No. 23314. Convention date, Jan. 25. [Class 8 (ii)] A filter element with spiral passages is made by winding bands, for example of porous paper, so that they form . developable surfaces generated by tangents to helices. Fig. 6 shows an element formed of two bands, each of which constitutes the surface generated by the tangents to a helix on the surface of a cylinder of revolution, the helix corresponding to one of the bands being turned in the opposite direction to that for the other. The meeting edges of the two bands may be fixed together by rubber or other adhesive. Bands of the required shape may be obtained from a flat sheet, of material by cutting along the involutes of a circle to form the edges 4, 4a, of the bond as indicated in Fig. 3. In the element shown in Fig. 7 each convolution is folded over and united to the adjacent convolution. The centre of the element is closed by a plate 12 and the outer convolution is attached to a frame 13. Fig. 13 shows an element in which one of the bands is cylindrical. The element is fixed in a rubber cylinder 14. A similar element may be arranged in a cylindrical casing having perforated ends.
Patent GB-1358788-A (GB)
Title: Apparatus for stacking plastics cups and the like
IPC: B65G57/16
Filed: 1973-05-17
Abstract: 1358788 Stacking apparatus KINGSTON CONVEYORS Ltd 17 May 1973 [18 May 1972] 23414/72 Heading B8C Plastics cups, which are ejected from a cupproducing machine, are individually picked up by a pneumatic jack-actuated, pivotal suction arm 1, transferred to a release position over a pneumatic jack-actuated lifting pad 9, and lifted by the pad into one of plurality of stacking formers, past spring-loaded latching pawls 15, to form a bottom-loaded nested stack. Each former comprises three spaced tubes 11, 12 and 13 carried on a stepwise-rotatable turret 27. The turret is indexed through a ratchet mechanism (not shown) by a jack 35, after a predetermined number of lifting pad strokes and after disengagement of a jack-operated latch 31, Figs. 3 and 4 (not shown), from a latch plate 29 of the turret, in order to locate the next empty stack former over the lifting pad. At each indexing, a spring-loaded lever 39 is moved between the stacking former tubes to check that the former is empty. Should the lever engage cups within the former, it is rocked back to switch off the machine or actuate a visual or audible warning. The suction arm 1 is hollow and has a pick-up port 4 connected via a port 8 in its mounting shaft 5 to a vacuum pump 7. The ports are misaligned when the arm is positioned above the pad so that the vacuum-grip on the cup is released. The arm is interchangeable with other arms, and the stroke of the lifting pad may be varied in order to accommodate various sized cups. Similarly, two of the three tubes of each former are carried on the turret by a pair of pivotal arms 17 and 18, which are spring-urged against adjustable stops 23 and 24 to enable the spacing of the tubes to be varied to suit the particular cup size being stacked.
Patent GB-1476114-A (GB)
Title: Manufacturing of an electrode set for use in the recording on a record carrier
IPC: H01R43/00
Filed: 1975-05-29
Abstract: 1476114 Charging apparatus DISA ELEKTRONIK AS (DANSK INDUSTRI SYNDIKATAS) 29 May 1975 [31 May 1974] 23443/75 Heading H1X [Also in Division B3] A method of making an electrode set in which a row of electrode pins 1 project from a common carrier 2 parallel to each other in a common plane, the pins being connected to or integral with terminals 3a, 3b, 3c which lie in different planes, comprises etching a plurality of flat blanks 4 (Fig. 4) so that each forms a number of electrode pins 1 surrounded by and joined to a frame 5, bending all the etched blanks, except for one, along a line at right angles to the pins and at the same distance along their length, removing the frames from what are to be the free ends of the pins, joining the blanks together with the pins interdigitated and removing the remainder of the frames. The blanks 4 are of stainless steel and the pins are formed with terminals 3 and spacers 9 which allow for different length pins. After etching, two out of three blanks are bent to form the terminals 3a, 3b and together with a third blank, they are clamped between two parts of the carrier 2. The electrode pins 1, prior to clamping are aligned in a tool comprised of two sizes of plate shaped elements (6), (7), Figs. 5, 6 (not shown), disposed alternately on a bolt (8), which clamps them together. The samaller plates (6) are of the same thickness as the width of the pins 1 and the larger plates (7) are of the same thickness as the spacing between the pins.
Patent GB-693705-A (GB)
Title: Improvements in or relating to methods of manufacturing bladed structures for turbines and compressors
Inventor: OWNER FRANK MORGAN
IPC: B23P15/04
Filed: 1950-09-25
Abstract: 693,705. Making turbines &c. BRISTOL AEROPLANE CO., Ltd. Sept. 20, 1951 [Sept. 25, 1950], No. 23494/50. Class 83 (ii). [Also in Group XXVI] A method of making bladed structures for turbines and axial flow compressors comprises making blades 12 with slots 15, mounting the slotted blades on a relatively thin marginal edge 13 of a blade carrying structure 14 so that the edge enters each blade slot, placing solid slotted spacing members 16 between each pair of blades, said members being shaped at 17, 18 to fit the adjacent concave and convex surfaces of the blades, and brazing the blades and spacing members together and both to said marginal edge. The blades 12 of a gas turbine rotor are cut from aerofoil section strip which may be hollow or solid, rolled or extruded, or made from sheet metal, shaped by rolling and welded at the abutting free edges. The blades may be twisted &c., to vary their section over each length. Alternatively, each blade may be a hollow extrusion or made from a sheet metal blank, Fig. 5. Each spacing member. 16 is machined or stamped, or precision cast as by the lost wax process. The blades are cut away at 21, Fig. 2, to lie flush with the lugs 20 of the spacing members and the spaces 25 of the hollow blades allow cooling air to flow radially outward of the rotor disc 13 and pass through the blades and discharge at the open outer ends 26. The assembly may finally be coated with a heat-resistant material such as a ceramic, as disclosed in Specification 691,859, [Group XXXVI].
Patent GB-154524-A (GB)
Title: Improvements in life buoy slips for ships
IPC: B63C9/22
Filed: 1920-08-12
Abstract: 154,524. Williamson, W. S., and Young, W. Aug. 12, 1920. Receptacles for apparatus; detaching-gear. - A life-buoy 2 is supported against gravity in a receptacle by a forked latch .member 3 which normally blocks the open bottom of the receptacle 1 but which is adapted to be withdrawn by means of a lanyard 6. Between the limbs of the latch member a flag-float 5, attached to the buoy by a rope, is loosely supported so as to be released with the buoy when the latch member is withdrawn from the container.
Patent GB-488068-A (GB)
Title: Improvements in and relating to valves
IPC: F16K3/18
Filed: 1937-08-27
Abstract: 488,068. Valves. DINGLERWERKE AKT.-GES. Aug. 27, 1937, No. 23578. Convention date, Aug. 28, 1936. [Class 135] A sliding plate type of valve comprises two valve plates 1, 1, movable together in the valve casing and being forced apart onto the seatings by a spring or a wedge 9, which are each provided with two separate seating surfaces 2, 3 co-operating with seating surfaces 5, 6 on the casing to form annular chambers 7 between them. Drain pipes controlled by valves 15 are taken from these chambers to test for and run off any leakage past the first of the seatings depending on the direction of flow. The seating surfaces 5, 6 on the casing are formed on separately inserted pieces 16 although in a modification the seating surfaces are formed on the casing itself. The Specification as open to inspection under Sect. 91 comprises also arrangements in which a single valve plate is used, the plate being either wedge-shaped or parallel with the two seating surfaces on one side with the wedgeshaped plate and on both sides with the parallel plate. This subject-matter does not appear in the Specification as accepted.
Patent GB-451573-A (GB)
Title: Improvements in coated or laminated products and method of making same
IPC: C09J7/10
Filed: 1934-11-05
Abstract: Films for covering or lining sheet material or articles comprise a rubber hydrohalide, e.g. the hydrochloride.  A small amount of an age-resister may be added, e.g. diphenyl guanidine, dihydroxydiphenylpropane, methylene amino aceto nitrile, or mixtures thereof, or a mixture of hexamethylene tetramine and di tetra hydro furfuryl amine or dicyclohexylamine.  Waxes, oils, fillers, dyes, &c. may also be added.  The rubber hydrochloride may be produced by passing hydrogen chloride gas into a benzene solution of plasticized pale crepe rubber, steam-distilling the product to remove excess hydrogen chloride and the benzene, breaking up and washing on a rubber washer, and drying in a vacuum.  The product is dissolved in benzene or chloroform with or without an age-resister, spread into a film, e.g. on a nitrocellulose-coated belt, and stripped.
Patent GB-731383-A (GB)
Title: Improvements in or relating to paper-making machines
Inventor: SUTHERST TOM
IPC: D21F7/04
Filed: 1952-09-20
Abstract: 731,383. Wet press sections of paper-making machines. MILLSPAUGH, Ltd. Sept. 18, 1953 [Sept. 20, 1952], No. 23642/52. Class 96. A pulp web 4, formed on a Fourdrinier paper-making machine and having a start-up strip cut by a water-jet 20, is couched by a suction roll 5 from the wire-cloth 1 to a felt 6 which carries it to the lower felt 10 of a suction wet press, the web 4 adhering to the upper roll 12 and its greater portion being doctored off as broke or as creped broke at 26 and being directed by an air jet 27 and a guard 28 through a gap G between a downward run of the felt 10 and the following wet press felt 18 &c., the broke falling into a hog-pit 29. The start-up strip may be temporarily collected by a doctor and tray 24, 23. In modifications, (1) the broke passes between two roughly parallel guards 28, the air jet being vertically over the gap G; (2) a conveyer is provided for transverse removal of broke; (3) a guide plate is provided to keep the broke away from the down-running felt 10; (4) there are two upper press rolls over a common lower press roll, from which the felt 10 runs straight down, the second upper press roll lying over the gap G and the broke-removing doctor acting against the lowest part of its surface.
Patent GB-353272-A (GB)
Title: Improved case or holder for portable golf tees
IPC: A63B71/06
Filed: 1930-08-07
Abstract: 353,272. Cases for portable golf tees. SHANNON, S: J. L., 50, Wellington Street, Glasgow. Aug. 7, 1930, No. 23644. [Class 18.] A case for portable golf tees is formed from a blank of cardboard &c. which can be folded over in pocketbook fashion and comprises a section 21 with a slot, a lower section 23 from which two tee-holding sections 25 are bent up at right-angles, an end section 28, and a flap 29 with a tongue on the end adapted to engage in the slot in the section 21 ; the sections 25 being apertured or slotted to take the shanks of the tees. The inside face of the section 23 may be printed as a score card, and the outside of the case may bear advertising matter.
Patent GB-775310-A (GB)
Title: Improvements in filter fabrics
IPC: B01D39/08
Filed: 1954-08-17
Abstract: A filter fabric woven from a copolymer of vinyl chloride and acrylonitrile has one surface napped to produce a texture of randomly-disposed fibres.  It can be used for filtering viscose by folding it on itself with the napped surface inwards. Specification 661,074 [Group IX] is referred to.
Patent GB-406361-A (GB)
Title: Improvements in signalling systems, particularly party line telephone systems
IPC: H04Q5/00
Filed: 1932-08-26
Abstract: 406,361. Exchange systems. STANDARD TELEPHONES & CABLES, Ltd., Connaught House, Aldwych, London.- (Assignees of MatÚriel Telephonique Soc. Anon. ; 46, Quai de Boulogne, Boulogne-sur-Seine, France.) Aug. 26, 1932, No. 23878. Convention date, March 2. [Class 40 (iv).] Each substation on a party-line comprises two bridges, one of which contains the communication apparatus, e.g. a telephone or telegraph set and is normally disconnected while the other, which is normally connected through a rectifier which opposes the passage of current in the normal direction, contains the selective apparatus. The former bridge contains a rectifier which opposes the passage of currents in the reverse direction so that, in the case of a reverting call the communication bridge which is already established at the calling station does not affect and is not affected by the reverse impulses which are employed for setting the selector at the wanted station. Detailed operation. The removal of the receiver grounds the B-wire and the exchange then periodically reverses the normal battery connections to the line to give impulses via the rectifiers Q to the magnets S of the selectors W. When the cam X at the calling station changes over the spring set Y, the bridge containing the telephone set and the rectifier P is connected across the line via the hook switch and the impulses cease, the number of impulses sent being registered at the exchange to control metering. The connection is now set up in the ordinary way. In the case of incoming calls, the exchange sends a series of reversals to operate the springs Y at the wanted station, the selector at the calling station, if the call is a reverting one, being disconnected at the hook switch. The line is then rung over the B wire, the interruption of the ringing circuit when the receiver is removed terminating the ringing operation at the exchange. After a conversation, the exchange sends a series of reversals to step all the selectors on. As each reaches normal it short-circuits a second winding on its stepping magnet which thus remains energized until the end of the train.