baber/WOPTO huggingface dataset:
Patent GB-708998-A (GB)
Title: Lubricating oil manufacture
IPC: C10M169/00
Filed: 1952-06-03
Abstract: Steam cylinder oils are prepared by mixing an asphalt with a liquid mixture of butane and propane containing from 10-30 per cent. by volume of propane, treating the raffinate thus obtained, and containing paraffinic and naphthenic components, with a solvent selective to the naphthenic components, and adding the high molecular weight paraffinic material to a mineral lubricating oil.  The asphalt may be derived from the vacuum distillation or propane de-asphalting of crude petroleum.  The selective solvent may be anhydrous phenol, light hydrocarbons, ketones and chlorinated solvents.  The mineral lubricating oil may be a propane-de-asphalted phenol-treated crude residium.
Patent GB-1496133-A (GB)
Title: Cellular silicon nitride bodies
IPC: C04B35/591
Filed: 1975-06-11
Abstract: 1496133 Cellular silicon nitride UNITED KINGDOM ATOMIC ENERGY AUTHORITY 11 June 1975 [29 March 1974] 14173/74 Heading C1A A unitary, cellular silicon nitride body has a first cellular portion comprising silicon nitride adhered to a second cellular portion comprising silicon nitride, the cells of the first portion differing in size and/or type from the cells of the second portion. Thus the cells of the first portion may comprise open pores and the cells of the second portion may comprise enclosed cells. Suitably, a first cellular body comprising silicon or silicon nitride is adhered to a second cellular body comprising silicon or silicon nitride by means of a mixture comprising silicon and a binder, the cells of the first body differing in size and/or type from the cells of the second body; the binder in the mixture is cured and then removed by debonding which is followed by firing in a nitriding atmosphere to produce the unitary cellular silicon nitride body. Both the first and second cellular bodies may additionally contain a cured binder, which is removed in the debonding step. The adhered body produced on curing may be machined before debonding. Thus the adhered body may be impregnated with paraffin wax before machining, and the wax removed by melting out after machining and before debonding.
Patent GB-1042154-A (GB)
Title: Improved photographic image reversal process
IPC: G03C8/04
Filed: 1963-04-09
Abstract: 1,042,154. Photographic transfer processes. TECHNICAL OPERATIONS Inc. April 9, 1963 [April 9, 1962], No. 14204/63. Heading G2E. Photographic reversal images are produced by transferring a silver image produced in a binder-free silver halide layer to a tacky receptor sheet and then re-exposing and developing the remaining silver halide to produce a reversal image. This reversal image may also be transferred to a tacky receptor sheet.
Patent GB-548850-A (GB)
Title: Improvements in the staples or receivers of night latches and other locks
IPC: E05B17/20
Filed: 1941-11-06
Abstract: 548,850. Latch keepers. MILNER, J. B. Nov. 6, 1941, No. 14307. [Class 44] To prevent forcing back a latch bolt by insertion 'of an instrument past the door edge into engagement with the bevelled bolt end the keeper 10 houses a pivoted lever 16, one end of which normally rests against a lip 10a under action of a spring 19, the other end engaging a slot 15 in a plate 13 slidably mounted in the keeper, the plate being biased to projected position by a spring 20 but normally held within the keeper by lever 16 and spring 19. When the latch bolt enters the keeper it rocks lever 16 clockwise, thus allowing spring 20 to project the plate into contact with the door edge to close the gap through which the instrument could otherwise be inserted. Slot 15a allows lost motion so that the bolt is not arrested by engagement of the plate with the door edge. A stop 21 limits inward movement of the. lever and the outer edge of the plate is preferably curved as at 14. A modification is described in which springs 19, 20 are replaced by blade spring carried on opposite faces of the lever, one bearing against the rear wall of the keeper and the other against the outer end of the slot in the plate.
Patent GB-592838-A (GB)
Title: Improved manufacture of unsaturated esters
IPC: C07C69/145
Filed: 1940-09-19
Abstract: Unsaturated esters are prepared by reacting tertiary olefines having the formula R1R2C=CR3.CH3 wherein R1 and R2 are hydrogen, or substituted or unsubstituted alkyl and R3 is substituted or unsubstituted alkyl with formaldehyde and a carboxylic acid or an anhydride thereof in the presence of a catalyst comprising a metal halide or a salt of a halogenated carboxylic acid with a metal of the second or fourth group of the Periodic Table.  As catalysts, zinc dichloracetate and chlorides of zinc, tin, silicon and titanium are mentioned.  In examples: (1) trimethylethylene and paraformaldehyde are reacted with glacial acetic acid and with acetic anhydride to give tertiary butanylethylacetate; (2) isobutylene is reacted with trioxymethylene and glacial acetic acid to give isopropenyl ethylacetate.  Solvents, e.g. chloroform, ethylenedichloride or ether or desiccants, e.g. sodium or calcium sulphate may be used. Diisobutylene and 2-methylpentene-2 are mentioned as olefines which may be used and propionic, crotonic and phthalic acids are also specified.
Patent GB-818399-A (GB)
Title: Improvements in or relating to polishing wheels or mops
Inventor: WEILL GERALD FRANCIS
IPC: B24D13/04
Filed: 1957-05-06
Abstract: 818,399. Polishing wheels. GRAUER & WEIL Ltd. May 6, 1958 [May 6, 1957], No. 14375/57. Class 60. A strip 1 for a polishing wheel or mop of the kind comprising a plurality of strips secured to a hub each strip being in a plane generally axial with the wheel, is characterisec by an elongated aperture 4 of a length of not less than the distance between the ends of two open-endec slots 3 which extend towards each other from the sides of the strip and serve to receive the flanges 10 of a pair of clamping plates 6. The aperture is disposed in a made-up wheel radially inwards of the slots and receives a strap 2 of metal, fabric, webbing or other suitable material on which a plurality of strips, which may be of emery or other impregnated or unimpregnated cloth, preferably cut on the bias, is mounted, the strips, preferably, being glued together. The strap is bent to conform to a circle and its ends, which are bent inwardly over the end strips may be secured together by gluing, riveting, soldering, spot-welding, or by being folded upon each other; the strap may be of a metal which will retain the ends adjacent each other without securing means. The assembled ring is clamped between the plates 6 which have flanges 10 engaging the slots 3 and are secured together by bolts 8, a hole 9 in the plates being provided for mounting the wheel on a driving shaft. The slots 3 may be inclined towards the axis of the wheel and be of a depth from about one quarter to one third of the width of the strip and the aperture have a length greater than the distance between the ends of the slots.
Patent GB-579018-A (GB)
Title: Improvements in electric cables
IPC: H01B9/06
Filed: 1944-07-27
Abstract: 579,018. Electric cables. CALLENDER'S CABLE & CONSTRUCTION CO., Ltd., BRAZ ER, L. G., FAIRFIELD, R. M., and HOLLINGSWORTH, D. T. July 27, 1944, No. 14380. Drawings to Specification. [Class 36] An electric cable with a laminated dielectric comprising helical windings of ethylene polymer within a reinforced sheath has the interstices filled with gas under pressure. The windings may consist of a mixture of polyethylene and a smaller portion of polyisobutylene. The gas may be nitrogen under a pressure of 200 lbs. per sq. inch. The windings may be covered by a screen of copper tape, a lead sheath, a tape wrapping and an outer serving. The stranded conductor may be covered with a layer of conductive material. The windings adjacent this core may have a thickness of about 1 mil. whilst the outer region may have thicker tapes.
Patent GB-572409-A (GB)
Title: Improvements in or relating to the manufacture of ferro-magnetic material
IPC: C22C38/10
Filed: 1940-09-21
Abstract: 572,409. Magnetizing apparatus. OLIVER, D. A., and JESSOP & SONS, Ltd., W. Sept. 21, 1940, No. 14436. [Class 35] [Also in Group II] An isotropic permanent magnet material in which the magnet characteristics are enhanced in different directions in parallel planar zones is produced by subjecting the material during cooling from a temperature above to one below the Curie point in a magnetic field and by maintaining relative rotation between the material and the field, during cooling past the Curie point, about an axis at right angles to the planar zones in which the multi-directional characteristics of augmented value are to be produced. The material may be an iron-base alloy containing 13-30 per cent of cobalt, 8-20 of nickel and 5-10 of aluminium with or without up to 6 of copper, up to 6 and up to 4 of titanium. When the material is rotated in the field, the material in the form of a disc 18 is supported in a cage-like carrier consisting of spiders 22, 23 connected by rods 24 which are in two portions connected by spigot and socket joints 25. The spider 22 is provided with a flat trunnion 26' carried in bearings 20 in an end plate 12 and the spider 23 with a spindle 27 carried in bearings 20 in an end plate 16 and provided with a pulley 28. The carrier is mounted between polepieces 10, 11 which are enclosed by plates of non-magnetic material, the plate 12 and the side plates being secured by screws to the poles, the other plate 16 being detachably secured in place by dowels 17. The poles are comprised in a bipolar system which may be energized by continuous or alternating current passing through two coils, one on each side of the apparatus referred to above or by a permanent magnet. In a modification, Fig. 3, the disc 31 may be provided with a square hole 32, the corners of which are engaged by heat resistant supports 34 which project from a central portion of a mandrel 33 which is mounted in the bearings 20, 21, Fig. 1. In a further modification, discs of the material to be treated are mounted with intervening insulating washers, on the enlarged central portion of a mandrel and are held in position by screws fitting a screwed part of the central portion. In another modification, the magnetic field rotates round a stationary cylinder or ring 44, Fig. 8, of the magnet material, and the apparatus used comprises a circular yoke 45 with three polepieces 46 provided with windings 47 energized by a three-phase alternating current system. In an example, a disc consists of an iron base alloy containing 24.9 per cent of cobalt, 11.1 of nickel, 6.8 of aluminium, 2.3 of copper, 0.3 of carbon, and 2.1 of titanium, was heated to 1200‹ C., placed in the apparatus shown in Fig. 1 and rotated at a speed of 600 revolutions per minute in a magnetic field strength of 5000 oersteds until cooled to about 600‹ C.
Patent GB-1086286-A (GB)
Title: Improvements in and relating to ultrasonic inspection devices
IPC: G01N29/27
Filed: 1965-04-06
Abstract: 1,086,286. Ultrasonic testing. INSTITUT DE RECHERCHES DE LA SIDERURGIE FRANCAIS. April 6, 1965 [April 14, 1964], No. 14494/65. Headings H4D and H4J. In an ultrasonic pulse-echo flaw-detection system for examining the entire cross-section of a cylindrical workpiece as it passes a testing point so as to provide a quantitative indication of the flaws present, the transmitting-receiving transducer comprises a single block of piezoelectric material in the form of a solid of revolution and has a central aperture through which the workpiece passes. The solid of revolution may be a flat ring (Fig. 1) (or Figs. 2, 3, 5, 6, not shown), the volume included between two coaxial frustums of a cone (Fig. 4, not shown), or the volume included between two concentric spherical segments (Fig. 7, not shown). Ultrasonic energy may be directed towards the axis of the test-piece by a reflector or by a refracting member in the form of an aluminium or synthetic resin ring having a triangular crosssection (not shown), a trapezoidal cross-section (Fig. 5, not shown) or one of its faces concave (Fig. 6, not shown). The transducer and testpiece may be coupled by a water spray, or the test-piece may be passed through a water-filled tank as shown in Fig. 1. Flaw echoes are reproduced on an oscillograph.
Patent GB-734061-A (GB)
Title: Improvements relating to inhalers
IPC: A61M15/08
Filed: 1953-05-26
Abstract: 734,061. Inhalers. UNIVERSAL METAL PRODUCTS, Ltd., and BIDDULPH, M. May 19, 1954 [May 26, 1953], No. 14609/53. Class 81 (2). An inhaler comprises a nozzle member 7 containing medicated absorbent material, which is telescopically slidable in a tubular casing 1 provided with a captive closure cap 6, which fits the top of the container 1 when the member 7 is pressed fully down. If the appliance is made of flexible synthetic resin the cap 6 and securing strap 5 are moulded in one piece with the container 1.
Patent GB-1510172-A (GB)
Title: Disposable open punched cardboard container particularly for bottles and various objects
IPC: B65D5/49
Filed: 1975-04-09
Abstract: 1510172 Packages NELSEN INDUSTRIE CHIMICHE SpA 9 April 1975 [10 April 1974] 14636/75 Headings B8P and B8C A cardboard support for forming shrinkwrapped packages of fragile articles, e.g. bottles 23 comprises a blank 1 formed with creasing lines 2, 3, 5-7, 9-11, 13-16 and generally T-shaped cut-outs 17, 18, 22, so that the blank 1 may be folded to a generally U-shaped form about the lines 15, 16 and in concertina-fashion about the lines 2, 3, 5-7, 9-11, 13, 14 to provide ridges for locating the bottles 23, &c. on intervening flat portions. The cut-outs may have generally triangular transverse portions, Fig. 2 (not shown), and the number of ridges may be varied in accordance with the articles to be packed.
Patent GB-965596-A (GB)
Title: Improvements in or relating to magnetic information storage matrices and magnetized inhibiting means therefor
Inventor: ELLSON ALLAN HENRY
IPC: G11C17/02
Filed: 1962-04-16
Abstract: 965,596. Permanent stores. MULLARD Ltd. Jan. 23, 1963 [April 16, 1962 ], No. 14640/62. Heading G4A. [Also in Divisions H1 and H3] A permanent storage memory comprises a number of magnetic cores F1, F2, F3 and a permanent magnetic plate P having apertures O adjacent certain of the cores so that the flux through the apertures inhibits the cores adjacent thereto. The flux through the apertures may be increased by mounting a further non apertured plate magnetised in the opposite direction to plate P either on the side of the plate P remote from the cores or on the side of the cores remote from the apertured plate P. To reduce stray effects two cores per bit may be used one of each pair being inhibited. This method has the advantage that half the core positions always correspond to apertures and thus a more even distribution of the magnetic field is produced than if the number of apertures is completely random. The plates may be metal or alternatively may be non-metal, non-magnetic material containing a magnetic powder such as ferrite such as barium ferrite. The non-magnetic material may be P.V.C. or chlorosulphonated polyethylene and polyisobutylene. The matrix itself may be encapsulated in a silicone silastomer. The magnetic cores may be replaced by an apertured magnetic plate or thin magnetic films. Specification 875, 388 is referred to.
Patent GB-569705-A (GB)
Title: Improvements in rock crushers
IPC: B02C1/04
Filed: 1943-09-07
Abstract: 569,705. Vibrating - jaw crushers. TRIGGS, W. W. (Ebersole, A. R.). Sept. 7, 1943, No. 14656. [Class 59] One jaw of a rock crusher moves in an orbital path while remaining parallel to itself,'the other, preferably operated from the first, moves synchronously in a straight line path in the direction of its length. As shown, one jaw 20 is operated by 'an eccentric 18 and is provided at each side with a triangular yoke 40 suspended at their outer ends by a flexible link 72 which is suspended by springs 70 that give when uncrushable material is present between the jaws. The other jaw 30 is supported by a link 120 against pivotal plates 112 and is connected by a link 96 with a cross-piece 80 between the yokes. By these means the jaw partakes of the up-and-down movement of the jaw 20, the plates 112, the edges of which are rounded, ensuring an approximate straight line movement in the direction of the length of the jaw. The links 120, 96 are anchored at their ends by compressible connections, and the distance between the jaws may be adjusted by shims 130 between lower plate support and an angle bracket 132. In other forms, the yokes extend upwards, or to the same side of the jaw 20 as the eccentric ; both jaws may be furnished with such yokes and the jaws may be made in sections between which sieves are arranged. U.S.A. Specification 1,936,742 and French Specification 731,182 are referred to.
Patent GB-1261188-A (GB)
Title: Connection between a tube and another tube or other article
Inventor: KENDRICK HARRY
IPC: B60R9/04
Filed: 1968-11-08
Abstract: 1,261,188. Luggage racks. DESMO Ltd. 30 Oct., 1969 [8 Nov., 1968], No. 14871/71. Divided out of 1,261,187. Heading B7J. [Also in Divisions A4 and F2] In a luggage rack according to Specification 1,261,187, and having metal tube in its construction, a connection between a tube of the rack, for example 9, Fig. 4, and another tube of the rack, for example 8, Fig. 4, comprises a hexagonal nut 10 disposed coaxially in the bore of the tube 9 and secured by deformation of the wall of the tube 9 forming two circumferential grooves 11 which grip the nut 10 at its periphery and an externally screw-threaded member 12 engaging the thread of the nut 10 and extending through the adjacent end of the bore. The member 12 passes through diametrically opposite holes in the tube 8 and an axial bore in a moulded plastics junction-piece 13. The junction-piece 13 has a hollow seating 14 of cross-section such as to be complementary with the surface of the tube 8 and a spigot 15 and sleeve part 16 fit respectively into and around the end of the tube 9. A rubber pad 19 engages the surface of the roof or boot of the vehicle and is moulded around one end of a bolt or screw 18 which engages a nut secured in a leg portion 7 of a tube 6 in a manner similar to that used for the nut 10 in the tube 9.
Patent GB-274994-A (GB)
Title: Improvements in and relating to display stands or pedestals
IPC: A47F5/04
Filed: 1926-06-14
Abstract: 274,994. Dunhill, Ltd., A., and Hiles, P. H. N. June 14, 1926. Lamps combined with stands.-A display pedestal comprises a vase &c. 3, of opaque material, having in its wall a single opening 7 which may be covered with a lens. A shelf 5, which may be adjustable, is mounted on the top of the vase. The vase is lined with reflecting material, or contains a reflector, and encloses an electric lamp 11 which serves to illuminate exterior objects. According to the Provisional Specification, the vase may be of translucent material.
Patent GB-154515-A (GB)
Title: Improvements in or relating to gearing
IPC: F16H1/22
Filed: 1920-06-02
Abstract: 154,515. Griffith, A. W. June 2, 1920. Worm-and-wheel gearing comprises a worm in the form of a ball 4 driving two internal worm gears 6 with axes at right-angles to the shaft 2 driving the worm. The ball 4 is truncated at opposite poles. The gears 6 may be formed externally with spur teeth 10 and drive the casing 11 of a balance gear 15, Fig. 2, or they may be secured to separate shafts 17, Fig. 5.
Patent GB-696423-A (GB)
Title: Improvements in or relating to electric condensers
Filed: 1950-06-15
Abstract: 696,423. Electric condensers. SIEMENS & HALSKE AKT.-GES. June 15, 1950 [Oct. 1, 1948; Dec. 28, 1948; Sept. 13, 1949], No. 15010/50. Class 37. Relates to roll-type self-healing varnish dielectric condensers with particular reference to connecting lead arrangements designed to preserve the self-healing action. In all the embodiments the condenser strip consists of a counter or outer electrode coating whose longitudinal edges are staggered in relation to the longitudinal edges of the inner or carrier electrode. In Figs. 2 to 4 and in Fig. 7, the condenser strip comprises an aluminium foil base or carrier electrode 1 and self-healing counter electrode coatings 3 with interposed varnish dielectric coatings 2. The contact lead 4 in Fig. 2 is in a fold of paper or polystyrol 6 whose metal layer at 5 indirectly connects the contact lead 4 to the counter electrode coating 3. The 3/5 contacting layers are together so thin as to preserve the self-healing property. According to Fig. 3 the metallized strip 6 is laid flat across the condenser strip ; in this case the lead 4 (not shown) is outside the condenser strip. In Fig. 4, the varnish dielectric 2 is increased in thickness or an insulating strip 6 is introduced as shown at the locality of the contact lead 5 so as to increase the dielectric breakdown factor in this region only. This principle is also adopted in Fig. 7 where the varnish 2 is increased in thickness along one longitudinal edge and the self-healing coating 3 terminates short of the other longitudinal edge so that when the condenser is rolled up one end face of the roll is formed by coating 3 and the other end face consists of the foil 1 after removal of end face varnish 2. Lead wires are soldered to cup-like metal layers formed on these end faces. Figs. 2 to 4 and Fig. 7 may be modified as indicated, Fig. 6, whereby the carrier electrode consists of an insulating strip 7 with electrode coating. 8 which may be a self-healing coating. In Fig. 8, which utilizes such a carrier electrode 7/8 the counter-electrode coating 3 is taken around one edge of the insulating strip 7 over the varnish 2 and is stepped back from the other edge as is to a lesser extent the varnish 2. The carrier electrode coating envelops one edge of the insulating strip 7 and terminates short of the other edge so that when the condenser strip is rolled up end face contacts may be made. Each contact is by virtue of the staggered electrode coating edges well-spaced from the electrode coating it is not contacting so as to prevent breakdown at the contact point. In Fig. 9 the condenser strip shown in Fig. 8 is employed without the outer electrode coating 3. Two such modified strips, i.e. single electrode strips, are superposed and the sandwich rolled up so that at one end face there is an electrode coating 8 of one condenser strip and at the other end face the electrode coating 8 of the other condenser strip.
Patent GB-202439-A (GB)
Title: Improvements in sanitary tooth cleaner
IPC: A61C15/04
Filed: 1922-05-29
Abstract: 202,439. Thum, R. May 29, 1922. Teeth-cleaning appliances; toothpicks.-A combined toothpick 13 and holder 11, 12 for dental floss 19 has pivoted thereto at 20 a spade-shaped gum-massaging member 22, which also serves as a guard for the pick 13.
Patent GB-998982-A (GB)
Title: Method of making foundry moulds
IPC: B22C23/00
Filed: 1962-04-18
Abstract: 998,982. Moulding processes. CENTRE TECHNIQUE DES INDUSTRIES DE LA FONDERIE. April 18, 1962 [April 18, 1961], No. 15088/62. Heading B3F. Sand and sodium silicate or like binder is blown into the gap between a vented pattern 1 and an opposing member 8 to and hardened by CO 2  gas to form a shell mould.