baber/WOPTO huggingface dataset:
Patent GB-340681-A (GB)
Title: Improvements in the manufacture and production of tyres for vehicles
IPC: B60C1/00
Filed: 1929-10-30
Abstract: In tyre covers using plastic products obtained by the polymerization of butadiene, as described in Specification 299,037, [Class 70, Indiarubber &c.], solutions of those products of like concentration in the same solvent but of different viscosities are used for the different parts of the tyre, such as the side walls and tread.  In general, for the body portion of the tyre solutions of low viscosity are used, solutions of relatively high viscosity being used for the tread to withstand attrition &c. The following examples are given of suitable compositions to be used for the different parts of the tyre. (1) For the body portion, the cord fabric of the casing is calendered with a composition consisting of a 3 per cent solution in cyclohexane of 100 parts of a polymerized butadiene prepared according to Specification 324,004, [Class 2 (iii), Dyes &c.], this solution having a relative viscosity of 40, 60 parts of American gas black, 7 parts of stearic acid, 2 parts of resin according to Specification 233,322, [Class 70, Indiarubber &c.], 1 part of sulphur, and 1,2 parts of piperidine-piperidyl-dithio-carbamate. For the tread portion, a 3 per cent solution in cyclohexane of a polymerized butadiene prepared according to Specification 324,004, [Class 2 (iii), Dyes &c.], but having a relative viscosity of 1000 is mixed with the same ingredients as used for the body portion. (2) The body portion is first coated with a 3 per cent solution of the polymerized butadiene (prepared according to Specification 340,474, [Group IV]), having a relative viscosity of 50 mixed with 55 parts of gas black, 3 parts of resin according to Specification 323,322, [Class 70, Indiarubber &c.], 7 parts of stearic acid, 3 parts of zinc oxide, 1,5 parts of sulphur, 0,6 part of diphenyl guanidine, 0,4 part of mercaptobenzothiazole, and 0,6 part of hexenyl-piperidine.  An intermediate under-tread portion, next applied, consists of a similar 3 per cent solution of the polymerized butadiene but having a relative viscosity of 25, and the same other ingredients as used for the body portion.  For the tread portion, 100 parts of the polymerized butadiene solution having a relative viscosity of 600 are mixed with 7 parts of stearic acid, 7 parts of resin according to Specification 323,322, [Class 70, Indiarubber &c.], 70 parts of gas black, 1 part of sulphur, and 1,3 parts of piperidine piperidyl-dithio-carbamate.  In both examples, the vulcanization is carried out for 90 minutes at 140 DEG  C.
Patent GB-378286-A (GB)
Title: Improvements in or relating to loudspeakers
IPC: H04R1/28
Filed: 1931-11-27
Abstract: 378,286. Loud-speakers. KIRKE, H. L., 53, Rodenhurst Road, Clapham Park, London, HOWE, A. B., Shaldon, Hill View Road, Hatch End, Middlesex, and BARRETT, A. E., 62, Lessar Avenue, Clapham Common, London. Nov. 27, 1931, No. 32973. [Class 40 (iv).] A loud-speaker comprises a diaphragm having associated with one side thereof an air chamber flaring from the diaphragm outwards and wholly or partially bounded by sound-damping material of such nature and thickness that a large proportion of the sound energy of lower frequencies falling upon this material is absorbed thereby. The material is of a fibrous nature, such as slag wool or rock wool and is retained in position by material offering little obstruction to the passage of sound waves, such as wire mesh covered with thick muslin. The thickness of the material in the neighbourhood of the diaphragm is preferably of the same order as the diameter of the diaphragm. Fig. 2 shows a construction of loud-speaker having a diaphragm 1 mounted in an aperture in the front wall 2 of a box the back of which is left open and the inside of which is lined with a thick layer of damping material 3. The crosssectional area of the air chamber thus formed increases approximately logarithmically from the diaphragm outwards. If desired, the back of the air chamber may be covered either with a thick layer of damping material or by a thin fabric. A flared air column may also be provided on both sides of the diaphragm, the rates of flare and the inlet areas of the two chambers being the same or different. According to a further modification, Fig. 3, the top and bottom of the box are omitted as well as the back and the two sides are lined with damping material to form a trough-shaped air chamber. The thickness of the damping material at the front wall 2 may be made greatest in the neighbourhood of the diaphragm as indicated by the dotted lines. In this arrangement, the height of the structure is preferably made considerably greater than its breadth and the sides thereof may be hinged to the front.
Patent GB-1254224-A (GB)
Title: Multiple pin connector having ferrite core stacked capacitor filter
Inventor: WALSH JAMES J
IPC: H01R13/719
Filed: 1969-07-01
Abstract: 1,254,224. Connector and filter device combined. ERIE TECHNOLOGICAL PRODUCTSInc. 1 July, 1969, No. 33097/69. Heading H1R. [Also in Division H2] A connector with an internally secured multiple capacitor filter unit comprising a laminate of ceramicdielectric films 17, 18, 19, 20, having a plurality - of holes spaced from each other and extending perpendicularly through the films of the laminate, ground electrodes 24 margined from the holes and extending to the peripheral edge of the laminate, live electrodes 21 having a plurality of separate portions electrically - insulated from each other respectively extending to the edges of separate holes to provide a plurality of separate capacitors, a conductive coating 30 overlying and encircling the peripheral edge of the laminate and connected to said ground electrode means, conductivecoatings 33 overlying the edges of the holes and connected to the respective live electrode means, means of insulating 2, 3 providing sockets 4, 5 on opposite sides of said laminate and alignedwith said holes; a pin-6 extending through each hole and associated sockets, an electrical connection from each pin to the conductive coating overlying the hole through which the pin extends, and an electrical connection to the conductive coating covering the peripheral edge of the laminate. The filter unit may comprise inductive means such as ferrite beads 15 telescoped over; the pins to separate two adjacent laminates. The electrical connection from one of the pins to its live electrode may consist of a flexible conductive rubber sleeve.
Patent GB-326497-A (GB)
Title: Improvements in or relating to the manufacture of goods of rubber or similar material
IPC: C08J5/02
Filed: 1928-11-14
Abstract: 326,497. Dunlop Rubber Co., Ltd., Chapman, W. H., and rounder, D. W. Nov. 14, 1928. Latex, coagulating; indiarubber &c. sheets, threads, tapes, and rods; attaching to other articles.-Relates to the manufacture of goods of rubber or similar material from aqueous emulsions or dispersions which are heat sensitive, i.e. stable in the cold but capable of being gelled rapidly by heat, by dipping, spreading, impregnating, spraying, moulding, extrusion or electrophoresis. According to the invention, goods are formed by the contacting of such heat sensitive dispersions with a fluid heating medium subsequent to the dispersions having been brought to the desired shape or lay out while still in the fluid state, and subsequent to the removal of the shaped fluids from the bulk of the dispersions. Dispersions which are not heat sensitive can be sensitized by the addition of gelling agents in insufficient quantity to bring about rapid gelling in the cold, or by the addition of substances which are inactive in the cold but. become active gelling agents upon the application of heat. Examples of sensitizers are ammonium persulphate, with or without trioxymethylene, and sodium silico fluoride. In examples :-(1) An unheated former is dipped into a heat sensitized mixing and on withdrawal is placed in an atmosphere of steam or in a bath of hot water whereby the deposit is gelled; the required thickness may be attained by repeated dippings: the deposit may be dried on the former or after stripping while in the wet state and is then vulcanized; wire can be covered with rubber by this method. (2) A film of sensitized latex mixing is spread on to a face sheeting and is passed into a heating fluid such as steam, hot air or hot water; the film may be dried on the sheeting or removed and dried. (3) Heat sensitized latex is caused to flow into hot water through a shaped die; tubes, sheeting, strips of various sections and tyre treads may be produced. Other examples are described. Specifications 219,635, 290,313. 302,201, 324,104 and 326,210 are referred to.
Patent GB-1236573-A (GB)
Title: Improvements relating to the removal of panels from dies
Inventor: HARDING PETER CHARLES
IPC: B21J13/08
Filed: 1967-07-20
Abstract: 1,236,573. Removing panels from dies. HARDING CROSWELLER Ltd. 28th June, 1968 [20 July, 1967], No. 33384/67. Heading B5A. [Also in Division F2] Pressed panels are removed from dies by means of at least one rack-and-pinion unit, the rack of each of which contacts the panel either directly or through a member carried by the rack. Where a plurality of units are used there may be a common member carried by the racks. Each unit may have a different ratio of operation to enable both lifting and tilting of the panel.
Patent GB-1349218-A (GB)
Title: Rotors for screw compressors
IPC: F01C1/16
Filed: 1972-07-18
Abstract: 1349218 Rotary positive-displacement compressors DAVEY COMPRESSOR CO 18 July 1972 [2 Aug 1971] 33485/72 Heading F1F A screw compressor 10 comprises male and female rotors 22, 24 each having two portions A, B and C, D respectively, wherein the portions A and C have constant pitches which are greater than the constant pitches of portions B and D. Each rotor can be constructed with the larger pitch portion 56, Fig. 5, integral with the shaft 52, the smaller pitch portion 58 having a bore which receives shaft portion 62. Portions 56, 58 are connected by screws 64, perfect mating of  the respective helical land and groove portions being effected by locating dowel pins 72.
Patent GB-1403921-A (GB)
Title: Vehicle having a tiltable cab operable by a hydraulic jack
IPC: B62D33/067
Filed: 1972-07-18
Abstract: 1403921 Hydraulic jacks; reciprocating pumps APPLIED POWER INDUSTRIES Inc 18 July 1972 [31 Aug 1971] 33621/72 Headings F1A and F1D [ Also in Division B7] An hydraulic jack 4, Fig. 1, for tipping the cab 1 of a lorry, has a concentric reservoir 13, Fig. 3, and a manually operated pump 6 which closes the bases of the cam cylinder and reservoir. The pump is operated from under the vehicle wheel-arch by a removable handle 9, Fig. 1. For extending the jack the handle is held in the position shown in Fig. 4A by a spring-loaded stop 33 and when the handle is pushed over the stop as shown in Fig. 4B, a needle 31 is pushed inwards to lift a ball-valve 29, Fig. 5, off its seat thus allowing hydraulic fluid to return to the reservoir as the jack retracts.
Patent GB-953921-A (GB)
Title: Improvements in or relating to the pumping of suspensions
IPC: F04B5/00
Filed: 1960-09-30
Abstract: 953,921. Reciprocating pumps. K. LADENDORF, W. LADENDORF, P. LADENDORF, E. LADENDORF, and K.-F. LADENDORF, [trading as BRAN & LUBBE KOMM.-GES.]. Sept. 30, 1960 [Oct. 2, 1959], No. 33722/60. Heading F1A. [Also in Division F2] A pump for pumping a substance suspended in a liquid medium has a main pump chamber 7 in which is reciprocated a stepped plunger 2 passing through packing 15. The chamber 7 is separated from the packing 15 by a chamber 5, the two chambers being connected by a gap 8 through which suspension liquid is caused to flow during pumping. Suspension liquid is supplied to the chamber 5 by a pump 6 which as shown is integral with the main pump but which may comprise a separate pump with common drive means. The capacity of the pump 6 is greater than the pumping capacity of the stepped plunger in the chamber 5 to ensure continuous flow through the gap 16 whereby the suspended substance is prevented from reaching the packing 15.
Patent GB-1377675-A (GB)
Title: Method of extraction of l-dopa from plant material
IPC: A61K36/00
Filed: 1972-07-19
Abstract: 1377675 Extraction of L-dihydroxyphenylalanine MEDICA AB OY and SALON SOKERITEHDAS OY 19 July 1972 [30 Aug 1971] 33754/72 Heading C2C 3,4 - Dihydroxyphenylalanine is extracted from plants which contain it, e.g. the horse bean (vica fabia), by extracting the mashed whole vegitative matter with an aqueous solution containing sulphurous acid and a complexing agent for iron such as ethylenediaminetetraacetic acid.
Patent GB-798223-A (GB)
Title: Improvements in or relating to building structures and parts thereof
IPC: E04B1/08
Filed: 1954-11-22
Abstract: 798,223. Wall and roof linings. CAMP, E. J. Nov. 14, 1955 [Nov. 22, 1954], No. 33797/54. Class 20(4) A wall or roof comprises metal sheets 7, Fig. 1, arranged side by side and having interlocking channel-shaped edges 12, 13 through each pair of which a bolt or rod 9 is passed, the ends of the latter being secured to frame members 5, 6, a member 14 being provided which interlocks with the edges 12, 13, of the sheets and has attached thereto a lining or facing slab 19. As shown applied to a wall the rods 9 have heads 11 to engage the horizontal member 5 and nuts 10 to engage member 6. Each member 14 has a cranked edge 18 which lies between edges 12, 13, a base 17 to which lining or facing slabs 19 are secured by self-tapping screws covered by a strip adhesively secured in position, and an angled limb 16 which holds an insulating blanket 22 in place. In a modification the member 14 has a limb 16 on each side of a centre limb. In another form the slabs 19 are attached to member 14 by a T-section cover piece, the cross-member of which overlies the edges of the slabs and the projecting limb of which is attached to member 14. In another embodiment, Fig. 3, the slabs 19 have metal edging strips. 29 and are secured by hooks 23 which engage the edges 12, 13, are passed through spacing sleeves 27 and have nuts which press against cover strip 28. In another form the hooks 23 pass through holes in the slabs 19. The securing member may be of T- section, the slabs being attached to the cross-pieces of the T and the upright limb being cranked for interlocking with the edges of the metal sheets. In any of the embodiments slabs or panels may be attached by adhesive to the interlocked edges so as to line both faces of the metal sheets.
Patent GB-1534801-A (GB)
Title: Electric switch
IPC: H01H1/54
Filed: 1977-08-11
Abstract: 1534801 Contact pressure reinforcement in switches BROWN BOVERI & CIE AG 11 Aug 1977 33807/77 Heading H1N An earthing switch has a pivoted contact arm 2 movable from the (full line) open position to co-operate with a fixed contact 18 with a current loop so arranged as to bias the contacts 21, 18 to the closed position. The fixed contact 18 is of "rhomboid" shape and secured to the legs 19, 20 of a U-shaped holder 17 mounted on the rotatable arm of an isolator 10. The leg 20 of the holder 17 is insulated from the contact 18 so that current from the arm 14 follows a loop from the base 23 of the holder 17 through its leg 19 and contact 18 to contact 21 and arm 2.
Patent GB-1529158-A (GB)
Title: Table football game
IPC: A63F7/06
Filed: 1977-08-12
Abstract: 1529158 Football game J DEUTSCH 12 Aug 1977 [24 Aug 1976] 33874/77 Heading A6H  A table football game comprises slots (which may be curved) each having a player displaceable therein by a rod 3 beneath the playing surface, the rod carrying a handle 1 and a lever 5 to operate a leg 25 of the player through a gear-box 16. Each player can be rotated through 360. Each goalkeeper's hands are raised as he kicks.
Patent GB-521711-A (GB)
Title: Improvements relating to antenna systems and supporting structures
IPC: H01Q1/12
Filed: 1938-11-22
Abstract: 521,711. Roof tiles. KOLSTER-BRANDES. Ltd., and BEATTY, W. A. Nov. 22, 1938, No. 33948. Drawings to Specification. [Class 87 (i)] [Also in Group XL] A roof tile is made with a central opening to take a wooden block through which a short-wave wireless aerial can pass and be held in position, partly inside and partly outside the roof. The tile may also serve to pass the down-lead from an outside aerial into the house.
Patent GB-844564-A (GB)
Title: Flexible clamp for paper cutters
IPC: B26D7/04
Filed: 1958-10-23
Abstract: 844,564. Cutting machines. LAWSON CO. DIVISION OF MIEHLE-GOSSDEXTER Inc. Oct. 23, 1958 [Dec. 9, 1957], No. 33987/58. Class 31 (1). [Also in Group XXIX] A clamp bar mechanism for a paper cutter comprises a clamp bar 10 in the form of a casting 12 having a depending guide portion 50 extending substantially the length thereof, and a plurality of U-shaped presser elements 65 the legs of which straddle the portion 50. The casting 12 has a plurality of bores 15 through each of which extends a pusher-rod 40, which is actuable by a pneumatically-operated piston 43, the lower end of each pusher rod engaging the intermediate portion of a presser element 65. The legs of the presser elements, which have machined interior surfaces engaging corresponding machined surfaces on the portion 50, are secured to the portion 50 by means of bolts 73 engaging enlarged bores 68, 70 in the portion 50. The presser elements have tapered side edges 76, Fig. 1, to permit rocking thereof and rounded lower corners to reduce stress concentration on a flexible sole plate 78 secured to the presser elements. The bores 15 are provided with sleeves 20 having diametrically-' opposed slots 24 which align with slots 27, Fig. 5, in the casting 12, the slots 27 terminating in an inlet port 83. A control valve 90, Fig. 6, comprises a piston 93 movable in a cylinder 96 connected through a bore 98 with the pressure side of an hydraulic pressureoperated system actuating the clamp bar. The valve housing is closed by a diaphragm 99 and a valve seat 110 is closed when the hydraulic pressure exerted on the piston 93 is above a predetermined value. Air under pressure then passes from an inlet 127 through a port 133 to an outlet 130 and feeds through the inlet port 83 to the presser elements 65. When the pressure in the hydraulic system is below the predetermined value, the valve seat 110 is opened and a valve seat 123 closed to cut-off the supply of pressure air to the presser elements. Specifications 707,087 and 707,097 are referred to.
Patent GB-780599-A (GB)
Title: Improvements in or relating to screwdriver and like handtools
IPC: B25G1/08
Filed: 1954-11-24
Abstract: 780,599. Gimlets. ASPREY, K. M. F., and SELIG, S. May 6, 1955 [Nov. 24, 1954], No. 33999/54. Class 83 (3). [Also in Group XXIII] A gimlet or like rotary tool comprises a handgrip 1 at one end of the blade or shank 14 and a separable cap 9 longitudinally slidable on to the end 2 of the hand grip remote from the shank 14 to provide a rotary connection therebetween, and a spring-blade pocket-clip 5 on the body. A lug 8 is adapted to snap into a cut-out 11 in the cap. The cap is a push-fit on the tapered end 2 and has two longitudinal tenons which engage slots 3 in the part 2. The cap is also a push-fit on a tapered part 12 of the hand grip, to cover the blade or shank. The leaf-spring 5 is received in a longitudinal recess in the tapered portion 2 and is secured at 6.
Patent GB-1110502-A (GB)
Title: Yarn crimping
Inventor: BUCKLEY GORDON STUART
IPC: D02G1/12
Filed: 1964-08-20
Abstract: In a process of crimping or corrugating yarn with a zig-zag pattern in one plane only, one or more layers of parallel, contacting yarns of rayon and/or polyacrylonitrile fibre are passed between nip rollers 4 and 5, Fig. 1 (not shown) and into a stuffing-box comprising an electric-or steam-heated channel 7 of width such that the yarns are maintained under some lateral compression.  The open top or underside of the channel is closed by a heated pressure plate 9 (of T cross-section) which is pivoted about the shaft of one of the nip rollers and adjustably loaded by a weight (as at 14), spring(s), or pneumatically.  The yarns may be preheated as by passage between electrically heated plates 24, Fig. 3 (not shown).  Yarns proceed from the channel 7 directly through a cooling channel 15 (aligned therewith and of similar width) and are loaded by a plate 19 (similar to 9) so that the crimped form of the yarn is retained during cooling and setting by air supplied and expelled through pipe 17 and holes 18.  In the final assembly of yarns 22, adjacent yarns in a layer and/or the yarns of contiguous layers are held together by entanglement of projecting fibres but are readily separable.  A single or double layer of yarns may receive an application of backing material to form one or two carpets.
Patent GB-357843-A (GB)
Title: Improvements in mattresses and cushions
IPC: A47C27/045
Filed: 1930-11-12
Abstract: 357,843. Spring mattresses &c. SUEKOFF, L. A., 2241, South Halsted Street, Chicago, U.S.A. Nov. 12, 1930, No. 34111. Convention date, Feb. 10. [Class 52 (iv).] Padding layers 5 for covering the ends of uphol. stery springs in a mattress or like assembly are backed by a single layer of textile materials 4 which is secured at intervals to the padding and provided with slits or openings between said securing means in order to make pockets for housing the end turns of the springs. The securing means preferably consist of longitudinal and transverse rows of stitching 6, 7. Long-fibred padding in two piles with the fibres mutually at right-angles is preferred and the top and bottom sheets have borders which enclose the side walls. Additional padding 10 can be applied to the assembly and is stated to be held in place by interlocking of the fibres with those of the inner layer 5, the need for tufting the outer case 11 being obviated.