baber/WOPTO huggingface dataset:
Patent GB-699061-A (GB)
Title: Improvements in or relating to the fastening of gauze or fabric on to beadings or mouldings
IPC: B07B1/48
Filed: 1951-12-07
Abstract: 699,061. Friction-grip fastenings. MIAG VERTRIEBSGES. Dec. 7, 1951 [Dec. 9, 1950; June 15, 1951], No. 28685/51. Class 44 [Also in Group II] To secure a gauze 1 to a sieve frame 3 it is wrapped about a rubber cord 2 which is inserted in a groove 4 in the frame, the groove being partcircular in cross section at the base and slightly constricted at the opening and the combined diameter of the cord and gauze being greater than the internal diameter of the groove. The groove may be in other surfaces of the frame. In a modification, the cord may be replaced by a rigid member, the groove being lined with resilient material and formed in a metal channel forming the sieve frame, Fig. 3 (not shown). In another embodiment the sieve frame is loosely located in an outer fixed frame, the gauze being carried across the gap therebetween to a second anchorage in the fixed frame, Fig. 4 (not shown).
Patent GB-352324-A (GB)
IPC: B26B21/56
Filed: 1930-09-25
Abstract: 352,324. Safety-razor blades. WERNER, F., 41, Bl³cherstrasse, Berlin. Sept. 25, 1930, No. 28713. Convention date, Oct. 14, 1929. [Class 30.] A double-edged blade a of normal thickness, for clamping between curved comb and cover-plates, is rendered flexible to permit it to oscillate during shaving, by connecting the edges with the central part only by a series of webs cl, c<2>, &c., formed by a row of relatively large apertures parallel to the blade edges.
Patent GB-832471-A (GB)
Title: Improvements in or relating to supply receptacles for powdered or granular material
IPC: G07F13/06
Filed: 1958-09-09
Abstract: 832,471. Mixing appliances. MACHINEFABRIEK CONLIN N.V. Sept. 9, 1958 [July 8, 1958], No. 28868/58. Class 86 [Also in Group XXX] A container 1 for granular materials for the preparation of beverages in automatic vending machines has a delivery screw 2 operating in a channel 5, both surrounded by a U-shaped stirrer 9 which rotates with, and coaxially with, the screw 2. A vertical arm 14 carries agitators 12 and is guided by a stud 13 engaging in a slot 16 to reciprocate vertically when the screw 2 is rotated, being actuated by a stud 11 engaging eccentrically in a circular aperture in the lower end of the arm 14.
Patent GB-721049-A (GB)
Title: Improvements in turbine and dynamic compressor blades
Inventor: HOWELL ALUN RAYMOND
IPC: F01D5/16
Filed: 1951-12-10
Abstract: 721,049. Turbine and compressor blades. POWER JETS (RESEARCH & DEVELOPMENT), Ltd. Dec. 4, 1952 [Dec. 10, 1951], No. 28936/51. Class 110 (3). In an elastic fluid turbine or compressor, a rotor or stator blade and vibration damping means therefor comprises a hollow blade secured to the rotor or stator body, in combination with a leaf - spring secured at one end to the rotor or stator body and extending through the blade and bearing resiliently against the internal wall thereof. In the embodiment shown, the flanges 1a of the hollow sheet metal rotor blade 1 are secured to the flange 2a on a rotor disc by means of rivets 3. The leaf - spring 4 comprises two limbs and is also secured at the root end to the flange 2a by means of the rivets 3. Specification 719,079 is referred to.
Patent GB-814960-A (GB)
Title: Improvements in or relating to the densimetric separation of solid materials
IPC: B03B5/42
Filed: 1955-10-11
Abstract: 814,960. Washing granular materials. PREPARATION INDUSTRIELLE DES COMBUSTIBLES. Oct. 11. 1955 [Nov. 10, 1954], No. 28967/55. Class 82(2) In sink and float apparatus a stationary receptacle (4, 10) is provided for receiving the dense liquid discharged from the separating vessel (1, 9), whilst a bucket wheel (5) operates in the receptacle so as to lift the dense liquid and discharge it into a recycling shoot (8) for gravity flow back to the separating vessel. The latter may be a perforated rotary drum 9 (Fig. 2), while the bucket wheel may rotate independently of the drum and have lateral blades. Several apparatus may be used in series, Fig. 3 showing three such with rotary wheels 12 in wash boxes 11. The dense liquid being recycled via 14, whilst discharging the final heavy fraction at 17 and the light fractions at a. In Figs.- 1 and 2 the light fractions 5 discharged on to screens 3 the heavy fraction being collected apparently in the vessels 1, 9. Specification 807,996 is referred to.
Patent GB-770336-A (GB)
Title: Improvements in or relating to windshield wipers
IPC: B60S1/34
Filed: 1954-10-08
Abstract: 770,336. Windscreen cleaners. PRODUCTIVE INVENTIONS, Inc. Oct 8, 1954 [July 1, 1954]. No. 29049/54. Class 138(1) A windshield wiper arm comprises an inner section 1 and an outer blade carrying section 2 pivoted at 3 to the section 1. a rocker arm 4 supported on the outer section at a location spaced from the pivot 3 between the arm sections, and a member 6 :operatively connecting the inner section 1 and the rocker arm 4, and resilient means 9 connected to the rocker arm 4 and the outer section 2 for urging the outer section in a predetermined direction. The inner section 1 is attachable to a drive shaft and the outer section 2 is adapted for carrying a wiper blade at 22. A helical spring 9 is connected at one end 19 to the outer section 2 and at its other end 10 to the bifurcated rocker arm 4 pivoted at 5 on the section 2. The rocker arm 4 is also pivoted at 8 to one end of the link member 6 the other end of which is pivoted at 7 in a recess 13 in the inner section 1. As the section 2 rotates about the pivot 3, the length of the spring and tension therein varies and the distance of the longitudinal axis of the link 6 from the pivot 3 varies, in such a manner that the turning movement about the pivot remains substantially constant The arm sections are held in the positions shown, prior to assembly of the arm on the drive shaft, by a removable pin 23 passing through holes in the sides of the section 2. After assembly, the pin is removed and the outer section rotates towards the windshield.
Patent GB-483739-A (GB)
Title: A process for producing compounds of the paris green type
IPC: C09C1/00
Filed: 1936-10-26
Abstract: In a process for the production of Paris green wherein solid arsenic trioxide is reacted with a neutral or acid solution of copper acetate, the mother liquor obtained after separation of the pigment is regenerated for re-use by adding copper acetate, or copper oxide and acetic acid, or copper and acetic acid in the presence of air. The reaction is preferably effected at temperatures above 100 DEG  C. and under corresponding pressures, and the solution of copper acetate may be replaced by the solid gel thereof suspended or swelled in water or dilute acetic acid, or by any readily soluble salt of a weak acid in which Paris green is insoluble, for example copper lactate or tartrate, in solution in acetic acid.  By replacing the acetic acid radicle by another aliphatic acid radicle, such as that of formic or propionic acid, compounds analogous to Paris green, but having the acetic acid radicle replaced by the other acid radicle may be obtained. The Specification, as open to inspection under Sect. 91, is not limited to regeneration and re-use of the mother liquor after separation of the pigment.
Patent GB-364051-A (GB)
Title: Improvements in or relating to swash plate internal combustion engines operating on the two-stroke cycle
IPC: F01B3/06
Filed: 1930-09-29
Abstract: 364,051. Two-stroke engines. RICARDO, H. R., 21, Suffolk Street, Pall Mall, London. Sept. 29, 1930, No. 29074. [Classes 7 (ii) and 7 (vi).] In a swash-plate two-stroke engine having cylinders C mounted parallel to a central hollow shaft A through which the charge is distributed, pump pistons F are directly connected to the swash-plate A<1> or the main pistons. The pumps have a rotary valve G<1> driven by the shaft A which has delivery ports A<3> co-operating with passages C<6> leading to the cylinders. In the double-acting engine shown, exhaust ports C<2> are uncovered before scavenging ports C<4>.
Patent GB-157614-A (GB)
Title: An improved device for use in disinfecting telephone instruments
IPC: H04R1/12
Filed: 1919-11-22
Abstract: 157,614. Cooper, R. Nov. 22, 1919. Sanitary and hygienic devices.-In an hygienic attachment for telephone instruments of the type in which. an annular casing containing an absorbent pad saturated with a volatile disinfectant is arranged between the casing of the instrument and a mouthpiece &c., the pad is arranged between two coaxial cylinders of sheet material. In the form shown in Fig. 3. a tube A preferably of metal with lateral perforations B has an external thread C for attachment to the transmitter and an internal thread D for attaching to a nipple on the mouthpiece F. The tube A carries a flange A<1> against which rests a disc G with screwed socket H engaging the periphery of the casing J, and a second flange L in contact with the rear wall K of the casing. The pad M of cotton wool is enclosed between cylinders N, O of perforated sheet metal or the like. Means such as a hole in the easing may be provided for introducing fresh supplies of disinfectant. In a modification, the perforated tube A may be dispensed with, the casing in this case screwing directly on to the transmitter. The device may be similarly applied to receivers.
Patent GB-211540-A (GB)
Title: Improved manufacture of gold leaf
IPC: B21C37/02
Filed: 1922-10-26
Abstract: 211,540. Leighton, B. T., and Demel, F. Oct. 26, 1922. Drawings to Specification. Metal foil.-Gold leaf is produced electrolytically in the form of a continuous band. Specification 211,539 is referred to.
Patent GB-1092175-A (GB)
Title: Process for the production of light rubber vulcanisates
Inventor: KNIEGE WILFRIED
IPC: C08K5/11
Filed: 1966-06-29
Abstract: A composition comprises natural or synthetic rubber, a filler which is silica, calcium or aluminium silicate, and an ester of maleic or fumaric acid.  The rubber is preferably butadiene-styrene rubber. The alcohol of the ester may be monohydric or polyhydric alcohol and the ester may be a polyester provided that the ester is soluble in the rubber in the quantities added.  The ester is preferably mixed with the filler before being added to the rubber.ALSO:Silica, or calcium or aluminium silicate, is mixed with a small proportion, e.g. 0.5-15% by weight, of an ester of maleic or fumaric acid. The term ester includes low molecular weight condensation products of dihydric alcohols with maleic or fumaric acid.  The products are used as fillers for rubber (see Division C3).
Patent GB-221119-A (GB)
Title: Improvements in, or relating to, valve apparatus for rock drills and like fluid pressure operated tools
IPC: B25D9/20
Filed: 1923-11-20
Abstract: 221,119. Rayner, G. H. T., and Rayner, P. Nov. 20, 1923. Addition to 192,277, 208,951, and 210,602. Fluid-actuated gears. -In apparatus of the kind described in the parent Specifications, the end plates n, m are provided with semiannular or arc-shaped ports or passages g<3>, g' which put the inlet f into communication with the underside of the valve by passages f<2>, f<3>.
Patent GB-429732-A (GB)
Title: Improvements in head coverings
IPC: A42B3/14
Filed: 1934-10-12
Abstract: 429,732. Helmets &c. HELMETS, Ltd., Cromwell Works, Wheathampstead, HOBSON, H. T., 23, Clarence Road, St. Albans, and NOBLETT, T. J., Moat House, Wheathampstead, both in Hertfordshire. Oct. 12, 1934, No. 29288. [Class 63] In a helmet or other protective head covering for resisting blows, the upper part 1 of the crown is moulded from one piece of fibre board, and the body part 3 of the crown is made from a separately moulded piece of fibre board, the two parts being riveted or otherwise secured together after moulding. The piece which is to constitute the lower part 3 is cut in the form of a strip with inclined side edges 4, which is bent round and moulded to the required shape, the edges 4 being secured together by rivets 5. The helmet &c. is provided with a cushioning cradle comprising a number of U-shaped strips 11 gathered together by a cord 20, and each strip 11 is folded upon itself as at 12, Fig. 4, a pad 13 being inserted in the fold to space the sweatband 14 from the material of the helmet. The folded ends 12 of the strips 11 together with the pads 13 are secured to the part 3 of the helmet by means of stitching 18 which serves also to secure the sweatband 14 in position. The exterior of the helmet is coated with a waterproof composition.
Patent GB-930577-A (GB)
Title: Improvements in cylinder-piston combinations
IPC: G01F1/704
Filed: 1959-08-28
Abstract: 930,577. Rectilinear-motion bearing. G. K. PORTER. Aug. 28, 1959 [Aug. 28, 1958], No. 29458/59. Class 12 (1). [Also in Group XXVI] A rectilinear-motion bearing is formed between a piston 11 and a cylinder 10 by a ring 15 of a liquid such as mercury, located in a groove 14 in the piston.
Patent GB-617485-A (GB)
Title: Improvements in or relating to endless tracks for vehicles
IPC: B62D55/20
Filed: 1946-10-03
Abstract: 617,485. Endless tracks for vehicles. FORD MOTOR CO., Ltd., and RONAYNE, M. Oct. 3, 1946, No. 29478. [Class 79 (i)] In an endless track the links are provided with horns for positioning the track on the track rollers, and some or all of the horns are formed as tapered or wedge-shaped sockets adapted to receive correspondingly shaped shanks on detachable spade lugs. The links a are pivoted at b and each has at either side a horn c with a tapered socket into which may be fitted a shank d<SP>1</SP> of a spade lug d with flanges d<SP>2</SP> impinging on the outside face of the link a. The horn c and shank d may have a transverse aperture e to receive a pin. The spade lugs d may be half the width of the links a and may be staggered (as in Fig. 2).
Patent GB-922209-A (GB)
Title: A process for securing the pile of pile fabrics
Inventor: RUEMENS WILHELM
IPC: D06M15/29
Filed: 1961-08-16
Abstract: The pile of pile fabrics, e.g. carpets, velvet, plush, cord and velveteen, derived for example from natural or regenerated cellulose fibres, wool, silk, cellulose ester, polyamide, polyester and acrylonitrile polymer fibres, is secured by treating the reverse side of the fabrics with dispersions of copolymers derived from 1-25% by weight of an N-methylolamide of an acrylic acid that may be etherified and 99-75% by weight of one or more other polymerizable compounds and subjecting the fabrics to a heat treatment at a temperature above 100 DEG C.  In addition to the N-methylolamide of an acrylic acid or ether thereof the copolymer may also comprise other unsaturated carboxylic acid amides, derivatives of these carboxylic amides which are mono substituted at the nitrogen atom and the methylol compounds of these amides, esters, nitriles and N-disubstituted amides of unsaturated carboxylic acids, vinyl esters, halides, cyanides, ethers, ketones and aromatics, vinylidene halides and cyanides, C-vinyl pyridine, N-vinyl compounds, e.g. N-vinyl imidazole, N-vinyl pyrrolidone, N-vinyl caprolactam and N-vinyl pyridine, unsaturated aldehydes and esters of unsaturated alcohols, e.g. allyl and methallyl alcohols.  The fabrics may be treated on the reverse side with aqueous dispersions of the copolymers having a concentration of 3-50% with reference to the weight of the liquor by coating or padding, dried at temperatures up to 100 DEG C. and then heat treated at temperatures above 100 DEG C.  The dispersions may also contain thickeners, e.g. starch, cellulose and starch ethers, polyacrylic acids and their salts and salts of copolymers derived from acrylonitrile and acrylic acid, resin forming substances, e.g. tetramethylol acetone, dimethylol acetal, dimethylol urea, trimethylol melamine, dimethylol ethylene urea, dimethylol glyoxal monoureine, dimethylol butane diol diurethane, dimethylol adipamide, dimethylol propylene urea, dimethylol alkyl triazones and ethers thereof and polyfunctional epoxy compounds such as glycol and diglycol diglycidyl ethers, in combination with hardening catalysts, organic and inorganic fillers and pigments, polyacrylamides, polyvinyl ethers, polyvinyl esters, polyvinyl alcohol, clay, kaolin, china clay, barium sulphate, calcium carbonate, titanium dioxide, zinc oxide, iron oxide, chromium oxide and substative dyes.  The treatment may be carried out in conjunction with a padding impregnation with a water repellant comprising a metal salt/paraffin emulsion or silicone.
Patent GB-1216736-A (GB)
Title: An electronically controlled magnetic stirrer
Inventor: ZIPPERER MANFRED
IPC: B01F13/08
Filed: 1968-06-20
Abstract: 1,216,736. Magnetic stirrers. M. ZIPPERER. 20 June, 1968 [22 June, 1967], No. 29547/68. Heading B1C. A plurality of electron agents having winding 22 and cores 23 in a housing 21 are successively energized by an electronic control 26 to provide a rotating field to rotate the soft iron or permanent magnet stirring member 32, which may have vanes 33. The direction of rotation, frequency and amplitude of the field are variable by means of the electronic control. A non-ferrous cover plate 28 may contain resistance heating elements 34, or there may be high frequency or infra-red heating.
Patent GB-229024-A (GB)
Title: Improvements in the process of grinding and polishing glass and apparatus therefor
IPC: B24B7/24
Filed: 1923-11-23
Abstract: 229,024. Pilkington Bros., Ltd., and Waldron, F. B. Nov. 23, 1923. Flat extended surfaces, surfacing. -Glass plates are carried beneath grinding or polishing runners by a series of tables 1, the plates being removed from the front end and added to the rear end of the series, and are ground by runners 3, and polished by runners 15 mounted on frames which are movable in the direction of motion of the glass on rails 5. A runner may be kept stationary until a length of glass has passed it, and then travelled rapidly to operate whilst again stationary on the same part of the glass, but with a finer grade of abrasive. Alternatively, each runner is travelled with the glass, but at a greater speed until it has operated upon a length of glass, when it remains stationary until the same length has passed under it, when it is again travelled at greater speed. In both of the above operations, the runner may be given the same abrasive, or may perform the same polishing treatment during two or more successive operations on the length of glass before change of abrasive or treatment, and in order to vary the time during which a runner operates on the length of glass, it may, instead of being stationary, be travelled slowly either forwards or backwards. In a third method of operation, the runners all travel at constant speed, which may be half that of the glass. In a further modification, all the runners travel at the same, or the same average speed as the glass, and in this form, in order to ensure uniform action of the ruuers, these may be in the form of discs mounted eccentrically on an axis about which they turn, the discs either being free to rotate, or positively rotated, or they may be reciprocated in a linear path or in a closed curve in a direction mainly transversely of the glass. As a further modification alternative to, or conjointly with the form last referred to, the speed of the runners may be varied so as to be alternately greater than and less than that of the glass. When a frame carrying the runner reaches the end of its movement along the glass it is removed and brought back to the starting position by rails 13. The frames are moved along the rails by motors 6, and the runners are driven by motors 22. Block apparatus.-Instead of rotating runners, reciprocating blocks may be used.
Patent GB-874241-A (GB)
Title: Method of and apparatus for manufacturing a tubular synthetic plastic product
IPC: B29C53/60
Filed: 1958-09-16
Abstract: 874,241. Making reinforced synthetic plastic tubes. FOOD MACHINERY & CHEMICAL CORPORATION. Sept. 16, 1958 [Sept. 16, 1957], No. 29640/58. Class 99(2). A synthetic plastic tube formed with a plurality of superposed layers 29, 30 of resinimpregnated material is supported by and slidably moved along a rigid mandrel 10 to a zone 17 where it is supported by fluid under pressure whilst curing takes place. The tube comprises a layer 28 of polyvinyl chloride and the layers 29, 30 may be of resin-impregnated glass fibre, nylon, sisal or cotton. A stationary mandrel 10, e.g. of aluminium, has an upper tubular portion 10a, a reduced diameter portion 10b, and a lower cylindrical portion 10c. The annular space 17 is supplied with fluid e.g. air or oil under pressure from a pipe 15. Fluid is pressure regulated by a valve 19 and is heated by a heater H in the pipe 15 or by a heating coil H1 on the mandrel portion 10b. The sliding of the tube over the mandrel is facilitated by pressurized air supplied from a pipe 21 through the lateral passages 20. The mandrel portion 10d adjacent a heated curing zone 18 is cooled by water flowing through the chamber 24 by means of the inlet pipe 25 and the discharge pipe 26. The tube is pulled downwards along the mandrel by the mechanism 33. Sealing rings 27, fitted into the mandrel portion, 10c seal the annular space 17 and form the inside of the tube just before final curing. The liner 28 is formed longitudinally or as shown by helically wrapping a ribbon 34 of a thermoplastic material, e.g. polyvinyl chloride, with the overlapping edges forming a seal 44 which is sealed by the heated iron 46. Longitudinally disposed glass fibres 55 are passed through a bath of liquid resin 57 and then applied to the layer 28 to form layer 29. Glass fibre strands forming the layer 30 are helically wound over the layer 29 after passing through the liquid resin bath 71. After the tube is completley formed it is drawn through the heated zone 18 between electric heaters 31 wherein the resin is cured whilst the tube is subjected to the internal fluid pressure in the annular space 17. Whilst within the curing zone the tube is contacted by a spring-loaded rotatable wiper device 92 which smooths the partially-cured outer surface of the tube. The apparatus may also be arranged for horizontal operation.