baber/WOPTO huggingface dataset:
Patent GB-1374854-A (GB)
Title: Device for withdrawing an ingot from a mould during continuous  casting of metal
IPC: B22D11/12
Filed: 1972-02-15
Abstract: 1374854 Continuous casting FILIAL TSENTRALNOGO NAUCHNO-ISSLEDOVATELSKOGO INSTITUTA CHERNOI METALLURGII IMENI I P BARDINA 15 Feb 1972 [15 Feb 1971] 6916/72 Heading B3F [Also in Division B8] A east strand 6 is withdrawn from a mould by two endless chains of links 9 each bearing a profiled insert piece 10, opposed pieces (as the links pass over (driven) rollers 2, 3, 2a, 3a) defining a shaped nip, gripping the strand 6 over a large part, e.g. 80-90%, of the surface of the engaged length; the rollers 2, 3 are biased, as by springs 14, towards the opposed rollers 2a, 3a and the rollers, like freely rotating cylinders 4 over which the chains also pass, are mounted on a stand 1. The pieces 10 may be shaped to contact a large portion of the periphery of an angle-sectioned strand 6, Fig. 7, or a round-, oval-, I- or channel-sectioned strand.
Patent GB-1097647-A (GB)
Title: Brassiere
IPC: A41C3/00
Filed: 1966-02-17
Abstract: 1,097,647. Brassieres. DOMINION CORSET CO. Ltd. Feb. 17, 1966 [Oct. 14, 1965], No. 7049/66. Heading A3V. A brassiere includes breast-cups, stretchable between small and large cup sizes and secured along their side and lower edges to a body -encircling band 6, and stretchable shoulder straps 9 each having ends 11 and 10 secured along an upper inner cup edge and along the band respectively. Upper and lower sections 14, 15 of each cup are joined by elastic seams and a reinforcing member 21 of one way stretch material is stitched along its lower edge to the section 15 and to a lining 23 and retained by stitching 26 just outside its upper edge, the upper edge of the lining 23 remaining free. The cups are secured to the band 6 my beans of re-inforcing tapes 27 which form a pocket for a stiffening wire 30. The ends of the pocket are closed by elastic tapes 32, 37 secured to the inner face of the upper edges of the cups.
Patent GB-746201-A (GB)
Title: Improvement in lenses
IPC: G02B13/00
Filed: 1954-03-11
Abstract: 746,201. Optical objectives. DALLMEYER, Ltd., J. H., LANGTON, B., and HUNT, P. W. April 21, 1954 [March 11, 1954], No. 7060/54. Class 97 (1). An objective consists of two compound negative meniscus doublet components concave to a central diaphragm and enclosed by two single positive elements so that the objective is unsymmetrical about the diaphragm, the positive elements being all of the same type of glass of refractive index greater than that of the negative elements which are also of the same type of glass, the radius of curvature of the internal surface of the front doublet componene being greater than 0.7 of the focal length of the objective. Numerical data are given for one example of the objective shown.
Patent GB-1212980-A (GB)
Title: Track including a linear motor rail
Inventor: CHARITY MICHAEL
IPC: B60V3/04
Filed: 1967-02-14
Abstract: 1,212,980. Electric railways; railway systems. HOVERCRAFT DEVELOPMENT Ltd. 24 Jan., 1968 [14 Feb., 1967], No. 7063/67. Heading B7L. A generally concrete track 1, Fig. 1, mounted on spaced piers for supporting a gas-cushion vehicle, e.g. as described in U.K. Specification 995,127, is provided at at least one corner with a rail 6 to form, with stator structures 12 and 13 on the vehicle, a linear induction propulsion motor, the outer surfaces of the rail being flush with and forming parts of the outer surfaces of the corner. In another embodiment a trapezoidal cross-section rail is set-in from the corner and has its outer surfaces flush with the outer surfaces of the corner.
Patent GB-631202-A (GB)
Title: Improvements in or relating to a machine for banding articles
IPC: B65B13/02
Filed: 1947-03-14
Abstract: 631,202. Feeding webs. KARTRIDG-PAK MACHINE CO. March 14, 1947, No. 7140. Convention date, March 30, 1945. [Class 100(i)] [Also in Groups XVII, XXIV and XXX] In a machine for wrapping sausages between an upper and a lower tape, and adhesively securing the tape between the sausages to form a package of several sausages (see Group XVII), the upper tape 13 is drawn off from a supply reel (not shown) at predetermined intervals. The tape 13 passes through the loops 128, 129 on a guide-plate 130 which is given an outward, periodical, swinging-movement to draw the tape 13 off from its supply reel, by the connection through linkage 133, 132 with a cam-actuated link 97 of the main wrapping mechanism. A tensioning device for the tape 13 comprises a gravity-loaded roller 135 pivotally mounted in a guide 134. The lower tape 14 is fed from its supply reel (not shown) over a guide 121, 122. The tape 14 is pressed against the guide portion 121 by a roller 125 mounted on a frame 124 pivotally secured to the portion 121. The pressure of a friction shoe 127 which is carried by the frame 124 and bears against the tape 14, may be adjusted by a screw 126.
Patent GB-513267-A (GB)
Title: Improvement in welding rods
IPC: B23K35/36
Filed: 1938-03-08
Abstract: 513,267. Coated welding rods. LINDE AIR PRODUCTS CO. March 8, 1938, No. 7171. Convention date, April 9, 1937. [Class 82 (ii)] [Also in Groups IV and XXII] A welding rod is provided with an adherent coating containing an inorganic welding flux and a binder which consists of one or more of the following thermoplastic synthetic resinous materials, viz. :-a polyvinyl halide, a polyvinyl ester of an aliphatic acid, a conjoint polymer of a vinyl halide and a vinyl ester of an aliphatic acid, a partial polyvinyl acetal, polystyrene, polymerized esters of acrylic acid or its homologues or mixtures thereof, and halogenated natural rubber. For welding rods made of aluminium-base alloys the preferred binder is a partial polyvinyl acetal resin acetalized with propionaldehyde, butyraldehyde, or valeraldehyde, and for copper-base alloy rods the preferred binder is a polymerized ester of acrylic acid or its homologues, e.g., polymerized methyl methacrylate. The rod may be coated with the flux and then with a film of the resin, or it may be coated with a mixture of flux and dissolved resin by immersion, brushing &c. and then dried, or mixtures of the resins and fluxes may be applied by extrusion. Plasticizers may be added and the coatings may be baked. The following examples are given :-(1) bronze rods are rolled while warm in a mixture of 18 per cent. borax and 82 per cent. boric acid and then, while still warm, spirally wrapped with ribbons of a partial polyvinyl acetal resin or of halogenated rubber; (2) bronze rods are dipped into a solution of chlorinated rubber in benzene with which has been mixed a suspension of the borax-boric acid flux in benzene, the rods being then air dried ; (3) bronze rods are coated by dipping in a solution of polyvinyl acetate in acetone mixed with the borax-boric acid flux, methyl isobutyl ketone, and methyl amyl ketone ; (4) aluminium rods are dipped into a mixture formed by stirring a suspension of a flux consisting of 23 parts of potassium chloride, 23 parts sodium chloride, and 4 parts lithium fluoride in methyl isobutyl ketone and methyl amyl ketone into a solution of polyvinyl acetate resin in acetone ; (5) aluminium rods are dipped into a solution of a partial polyvinyl acetal resin in methyl alcohol mixed with a suspension of the halide flux used in Example 4 in isobutyl alcohol ; (6) bronze rods are dipped into a mixture of a solution of polymerized methyl methacrylate in ethylene dichloride, with propylene dichloride, methyl isobutyl ketone, and a borax-boric acid flux mixture ; (7) cobalt-chromium-tungsten alloy rods are dipped in a solution of a partial polyvinyl acetal resin in methyl alcohol mixed with a flux comprising 88 per cent. sodium borosilicate and 12 per cent. lithium fluoride ; (8) aluminium rods are dipped in a mixture of a solution of methyl methacrylate polymer in ethylene dichloride, the halide flux used in Example 4, propylene dichloride, and dibutyl phthalate.
Patent GB-788697-A (GB)
Title: Toy building bricks
IPC: A63H33/08
Filed: 1956-03-07
Abstract: 788,697. Toy building bricks. MEEHAN. C. L., and PATTERSON, D. March 7.1956 [March 8, 1955], No. 7189/56. Class 132(3) A toy building brick has on three of its sides, grooves A, B, C of which the crosssectional shape is complementary to lugs L provided on the other side 13 of the brick. Each lug is spaced from the adjacent end of the brick by a distance equal to “ the length of the brick, and the grooves are also complementary to corner portions D, E of the brick, Fig. 7 shows how a number of the bricks may be used to build a roof R and a wall W which are secured by the engagement of a corner D with a groove C. A modified brick, Fig. 4, has a face 10a of one of its sides sloped towards the lugs L at an angle of 15 degrees, the groove A' being correspondingly tilted. Fig. 8a shows how such a brick G engages with a normal brick F. Holes 20 in each end face of the bricks receive dowels for securing the bricks end to end. To prevent pivoting of one brick about the lug of another, the lugs may be pyramid-shaped.
Patent GB-708319-A (GB)
Title: Improvements in photographic cameras
IPC: G03B19/10
Filed: 1952-03-20
Abstract: 708,319. Lens mount for photographic cameras. KARPF, N., [trading as LINHOF KOMMANDIT. GES., V,]. March 20, 1952 [April 13, 1951], No. 7245/52. Class 98(1) In a photographic camera in which a carriage 2 for a lens mount 1 is slidable along a track, the mount 1 being tiltable with respect to the track, a hinge 3 is disposed in the tilting axis, and a projection 4 connected to the mount bears against the base of the carriage in the normal position and engages a screw-threaded member 6 or a cam whereby actuation of the member 6 or the cam causes the mount to be rocked about the hinge to a desired tilted position. Extension 4 may engage a circular groove in member 6, which is threaded into a socket 7. A spring 9 acting on extension 4 takes up backlash, and the movement of the mount is limited by a stop 8.
Patent GB-589424-A (GB)
Title: Improvements in percussion tools
IPC: B21J15/26
Filed: 1945-03-22
Abstract: 589,424. Percussive tools. GOLDSCHMIDT, R. March 22, 1945, No. 7305. Addition to 564,001. [Class 124] In a mechanically operated percussive tool in which a motor rotates a striker including a flyweight which, under centrifugal force, bears on a helical track on the interior of the tool body to convert the rotary motion into translatory motion, as described in the parent Specification, the fly-weight is completely decoupled from the helical track during the working stroke. In the form shown. a tubular guide-rod 15 integral with an anvil 13 is engaged by the shank 19 of a striker 18 which has keyways engaging an elongatedsectioned shaft 16 spigoted to the hollow shaft 12 of a high-speed electric motor 11. The striker carries a pair of hardened steel balls 21 surrounded by hardened steel rings 22 slidable in inclined recesses 24, the projecting portions of the balls 21 being slidably guided in segmental grooves 25 in the walls of the recesses 24. The striker has a cambered head 26 to engage a face cam 33 on the tool body 10. The latter carries a liner 27 with a circumferential groove 29 in which peripheral flanges 23 on the rings 22 can idle, a frusto-conical portion 30, and a two-start helical grooved track 31A, 31B. When the motor speed is high enough, the rivet snap 14 is applied to the work and the anvil 13 displaces the striker 18 outwards so that the rings 22 pass from the groove 29, up the portion 30, and into the grooves 31A, 31B, so that the striker is withdrawn from the anvil. As the striker approaches the outer dead point, the end portions of the tracks 31A, 31B, being of progressively decreasing radius, cause the fly-weights to be thrown inwards as the rings 22 leave the steeper pitched ends of the tracks, centrifugal force holding the balls 21 at the inner ends of the grooves 25. Almost simultaneously, the ends of the ridge of the cambered head 26 of the striker engage the face cam 33, and the lobes 34B of this cam throw the striker inwards at a high velocity so that the shank 19 hits the anvil 13. The inclined recesses 24 cause the fly-weights to move towards the outer ends of the grooves 25 and centrifugal force again engages the rings 22 with the tapered portion 30, and the cycle is repeated. In one modification, the face cam, the liner, the anvil and the drill all rotate together intermittently. In another, the cam- and-follower device for reversing the translation of the striker is replaced by additional fly-weights which engage a converging race beyond the outer end of the helical grooves which are formed directly in the body.
Patent GB-987703-A (GB)
Title: Improvements in or relating to polymers
IPC: C08J3/12
Filed: 1962-02-26
Abstract: Friable thermoplastic polymers are made by bringing all portions of a uniphase thermoplastic polymer to a uniform temperature within the range Tf and Tf-20 DEG  C., where Tf is the fluxing temperature of the polymer, grinding portions of the polymer upon itself by forcibly moving adjacent portions of the polymer in contact with each other across one another in different directions parallel to their plane of contact for at least 30 seconds to form an isothermal duophase thermoplastic polymer and thereafter lower the temperature of the duophase polymer to less than the temperature indicated by Tf-20 DEG C. to produce clots of friable polymer.  By "fluxing temperature" is meant the lowest temperature at which all portions of the polymer are in the fluid state. The term "uniphase polymer" means a thermoplastic polymer which is (1) homogenous, (2) free from interfaces between adjacent portions of the polymer mass and (3) consists of all solid or all fluid polymer.  The term "duophase polymer" means a thermoplastic polymer which is (1) heterogeneous, (2) characterized by numerous interfaces between adjacent portions of the polymer mass, and (3) consists of solid and fluid polymer in thermal equilibrium. The grinding action is effected in any mixer that functions with a shearing action, e.g. a Banbury mixer.  The polymers treated may contain fillers, plasticizers, pigments, stabilizers, and cross-linking agents. Exemplified polymers are polyethylene, a copolymer of ethylene and butene, a copolymer of vinyl chloride and vinyl acetate, polyvinyl chloride, polystyrene, a poly-(hydroxyether) (Example 21), a poly-(ethylene oxide) (Example 22), polypropylene, a cross-linked copolymer of ethylene and ethyl acrylate, and a polycarbonate homopolymer of 2,2 bis (4-hydroxyphenyl)-propane (Example 32).  The friable polymer may subsequently be ground to a powder of particle size 200 to 400 microns.
Patent GB-1460161-A (GB)
Title: Oxoalkyl-pyridines and process for their manufacture
IPC: C07D213/30
Filed: 1974-02-18
Abstract: 1460161 Pyridoyl compounds CIBA-GEIGY AG 18 Feb 1974 [19 Feb 1973 23 Oct 1973] 7324/74 Heading C2C The invention comprises compounds of formula R-Z-A-C(:X)-Py, and their salts, wherein R is a possibly substituted cycloaliphatic hydrocarbon radical, Z is p- or p-phenylene, optionally substituted, A is (up to C 8 )- alkylene or a direct bond, X is O (or functionally modified oxo, e.g. oximino) and Py is pyridyl, optionally substituted. In examples, these compounds are prepared by (1) reacting with LiPy, (2) reacting R-ZH with ClCOPy/ AlCl 3 , (3) decarboxylating 2-(p-1-cyclohexenylphenyl) - 2 - (2 - pyridoyl)propionic acid, (4) oxidizing 1 - (p - cyclohexylphenyl) - 1 - (2- pyridyl)carbinol, and (5) oxime formation. Also prepared is the starting material 3-chloro-4- cyclohexylbenzoic acid. Therapeutic compositions having fibrinolytic, thrombolytic, antiphlogistic and mild analgesic activity comprise compounds of the above formula, and may be administered enterally, parenterally, rectally and topically.
Patent GB-271594-A (GB)
Title: Improvements in the construction of electric transformers
IPC: H01F27/245
Filed: 1926-03-17
Abstract: 271,594. English Electric Co., Ltd., and Chadwick, A. T. March 17, 1926. Transformers.-In transformers of the core type having laminated legs which make joint with the yokes over the whole of the end surfaces, the laminations 7 forming the side parts of the legs are arranged at right angles to the laminations 6 forming the centre parts. The sets of laminations are clamped by insulated bolts 9, 10 which pass through triangular bars 8 of insulating material.
Patent GB-935543-A (GB)
Title: Purification of acrylic acid esters
IPC: C07C67/327
Filed: 1960-03-02
Abstract: <PICT:0935543/III/1> Purified acrylic acid esters of alcohols containing one to three carbon atoms are recovered from a crude mixture containing free acid and alcohol, such as is produced by the reaction of alcohol and beta-propiolactone, by washing the mixture with water and then fractionating the washed mixture to separate the acrylic acid ester.  Alcohol <PICT:0935543/III/2> and other water-soluble constituents are extracted by the water-wash, which is preferably alkaline in reaction, e.g. with sodium bicarbonate, to completely remove free acrylic acid.  The washed ester contains about 3-4% water and the water and organic materials are distilled off in the fractionation, separated and the organic phase returned to the column, preferably at a lower point.  The ester obtained at the base of the column may be further distilled.  Heavy ends may be recycled and alcohol stripped from the water may be returned to the synthesis unit. Examples describe the purification of ethyl and methyl acrylate, and apparatus comprising extraction and distillation towers, and a further fractionation tower together with an alcohol recovery tower, is described.ALSO:Purified acrylic acid esters of alcohols containing one to three carbon atoms are recovered from a crude mixture containing free acid and alcohol, such as is produced by the reaction of alcohol and beta-propiolactone, by washing the mixture with water and then fractionating the washed mixture to separate the acrylic acid ester.  Alcohol and other water-soluble constituents are extracted by the water-wash, which is preferably alkaline in reaction, e.g. with sodium bicarbonate, to completely remove free acrylic acid.  The washed ester contains about 3-4% of water, and the water and organic materials are distilled off in the fractionation and separated and the organic phase returned to the column, e.g. preferably at a lower point.  The ester obtained at the base of the column may be further distilled.  Heavy ends may be recycled and alcohol stripped from the water may be returned to the synthesis unit.  Examples describe the purification of ethyl and methyl acrylate and apparatus comprising extraction and distillation towers and a further fractionation together with an alcohol recovery tower, is described.
Patent GB-852114-A (GB)
Title: A device for the mechanical preparation of seedling cartridges
Inventor: KORAN VIKTOR
IPC: A01G9/10
Filed: 1957-03-06
Abstract: 852,114. Germinating appliances. VYZKUMNY USTAV ZEMEDELSKYCH STROJU PRAHA. March 6, 1957 [March 7, 1956], No. 7444/57. Class 6(2). Apparatus for germinating seeds and inserting the seedlings into cartridges comprises the combination of a germination apparatus, a flotation apparatus for floating the seedlings on water, a lifting apparatus for removing the seedlings from the water to carrier members, a selecting apparatus for withdrawing unsuitable plants and a planting apparatus for planting the seedlings in cartridges. Seeds are densely sown in a layer of sand or soil 3 carried by a perforated member 2 in a casing 1. Fluorescent tubes 4 and an electric resistance heater 5 are mounted in the casing and controlled by switches 6, 7. The upper space 9 of the apparatus is ventilated by means of a blower 10, air being fed through opening 13 and out through opening 12, the air passing through a heater 15 in which is mounted an air humidifier. The lower space 18 is ventilated through openings 21, 22 by a blower 19 the air passing through a cooler 24. The air temperature of the apparatus is controlled by means of thermostats 25, 29 with temperature feelers 26, 30 placed in the upper and lower spaces respectively. A water atomiser waters the plants from above and irrigation means are provided for watering the material 3 from below. In a modification, the member 2 may be replaced by an endless perforated band which extends outside the casing 1 and receives material from a hopper to form a bottom layer and seeds from a hopper and finally a layer of material from a further hopper to cover the seeds. In a further modification sand or soil is placed in containers which are submerged in water and seed is spread on the water. The water is then strained away leaving the seed spread evenly in the sand or soil. The seedlings are washed free of soil or sand and are floated away in a tank of water, the water being kept in movement by means of water fits. The plants are collected at a lifting position and are raised by means of compressed air nozzles which deposit the plants. Specification 852,113 is referred to.
Patent GB-432292-A (GB)
Title: Improvements in or relating to regenerative braking systems for electric motors
IPC: H02P7/34
Filed: 1934-03-09
Abstract: 432,292. Control of D.C. motors. ENGLISH ELECTRIC CO., Ltd., 28, Kingsway, London, and WILSON, J. C., Uplands, Brocton, Stafford. March 9, 1934, No. 7565. [Class 38 (iii)] Varying E.M.F. ; regenerative braking.- In a Ward Leonard or like system the motor is regeneratively braked to rest by connecting the generator field winding in a closed circuit disconnected from the supply, and automatically opening or increasing the resistance of the said circuit when the excitation falls below a predetermined value. To stop the motor a latch lever C is operated mechanically or electromagnetically to release a hook member E and allow a weight G to move a switch arm H into engagement with a contact M and shortcircuit the generator field B through a variable resistance O. When the field current falls below a predetermined value a relay Q opens its contacts R to open or insert resistance in the closed field circuit. Several relays may be provided to insert different values of resistance at different predetermined values of field current. The movement of the switch arm H momentarily inserts a resistance N in the field circuit so that the transition is effected without opening the circuit or short-circuiting the excitation supply. Alternatively the switch may have an auxiliary contact connected to the main contact through a resistance.