baber/WOPTO huggingface dataset:
Patent GB-307994-A (GB)
Title: Improvements in the sealing or joining of glass and quartz
IPC: C03C27/10
Filed: 1927-12-22
Abstract: 307,994. Dicker, S. G. S., (Naamlooze Vennootschap Philips' Gloeilampenfabricken). Dec. 22, 1927. Production of metal. -A method of sealing glass to fused quartz consists in using as a sealing medium a glass which is substantially free from alkaline metals. The glass used for the seal preferably contains at least 75 per cent of silica, at least 6 per cent of boric oxide, and a small percentage of one or more of the oxides of aluminium, calcium, or magnesium. A suitable glass consists of 85 per cent of silica, 12.5 per cent of boron trioxide, and 2.5 per cent of aluminium trioxide. Welding. - The method of joining a tube of quartz to a glass tube is shown in Figs. 5 and 6. A quantity of molten glass 6, having the composition given above. is applied to the rim of the quartz tube 1. A glass tube 7 is welded to the molten glass 6, and the two tubes 1, 7 are drawn apart so as to form the plastic glass 6 into a tube 8.
Patent GB-507574-A (GB)
Title: Improvements in coke-ovens
IPC: C10B29/08
Filed: 1937-12-16
Abstract: 507,574. Coke ovens. WOODALLDUCKHAM (1920), Ltd., and RICHARDS, F. B. Dec. 16, 1937, No. 31815. [Class 51 (ii)] In a concrete supporting plate for a coke oven battery comprising a number of sections 7 supported at their transverse edges on pillars or arches 8 in a manner leaving expansion gaps 9, the plates are located relative to the pillars by projections 13 on the latter engaging recesses 14 on the plate edges, projections 15 on intermediate rows of pillars engaging central recesses, and both projections being continuous with raised ribs 16 on the plates built into the battery along its centre line and preventing lateral movement of the plates. Depending lateral ribs also on the plates are seated on recesses at the ends of the arches and are faced, like all the contacting surfaces, with metal to facilitate expansion slip. Specification 507,576 is referred to.
Patent GB-975382-A (GB)
Title: Fluorine containing hydrocarbon copolymers
IPC: C08F246/00
Filed: 1962-09-12
Abstract: Fluorine-containing copolymers containing monomeric units of tetrafluoroethylene and of an unsaturated monohydroperfluoro compound of formula R-CH=CF2 in which R is a perfluorinated alkyl, aryl or cycloalkyl radical or of formula <FORM:0975382/C3/1> where n is 2 to 4, may be prepared by copolymerizing the monomer in suspension, emulsion, solution or bulk in the presence of a free radical polymerization initiator. Specified monohydro perfluoro compounds are 1,1,3,3,3-pentafluoropropylene, 2-hydroheptafluorobutene-1, 2-hydrononafluoropentene-1, a -hydroperfluorostyrene, 1,1-difluoro -2- perfluorocyclohexylethylene, 1-hydro-perfluorocyclobutene-1 and 1-hydroperfluorocyclohexene-1. Specified initiators are ammonium, alkali metal and alkaline earth metal persulphates, perphosphates and perborates; barium, sodium and hydrogen peroxides; azo compounds; and organic peroxides and hydro-peroxides such as the peroxides of trichloroacetic and heptafluorobutyric acids. Specified solvent media are perfluorocyclobutane, perfluorodimethylcyclobutane, perfluoropropylpyrane and tetrafluorodichloroethane.  In examples tetrafluoroethylene and 1,1,3,3,3-pentafluoropropylene are copolymerized in the presence of (1) ammonium persulphate, sodium metabisulphite and water, (2) perfluorobutyric acid peroxide and perfluorocyclobutane, (3) perfluorobutyric acid peroxide, (4) azodiisobutyronitrile and perfluorocyclobutane, (5) ammonium persulphate and water, (6) ammonium persulphate, ferrous sulphate and water, and (7) ammonium persulphate, sodium metibisulphite, ammonium perfluorocaprylate and water. The copolymers may be moulded to form shaped articles such as sheets.
Patent GB-393995-A (GB)
Title: Improvements relating to apparatus for dry cleaning
IPC: D06F43/00
Filed: 1931-12-17
Abstract: <PICT:0393995/III/1> <PICT:0393995/III/2> In dry-cleaning apparatus a pressure lower than atmospheric is established automatically within the receptacle whenever the charging door or its equivalent is opened, whereby escape of solvent vapour is prevented.  In the apparatus shown of the kind described in Specification 374,976, in which clothes are charged into a basket 2 rotated in the solvent, removal of the door 3 bearing a lug 5 allows a spring 13 to force a rod 6 to the left, thus operating a bell-crank lever 7, a lever 9 on arm 10, and a plate-valve 11 to open communication between a pipe 15 connected to an exhauster and a pipe connected with the cleaning receptacle 1; when the door is replaced the lug 5 forces back the rod 6 and the valve 11 is closed.  The closed position of the valve is determined by a lug 12 on the plate 11 contacting with a bolt 17 in the flange of the pipe 15.  In modifications, a poppet valve arranged so that its stem engages a rod actuated by the door is used, or the opening of the door opens the valve against the action of a spring normally maintaining the valve closed.
Patent GB-298410-A (GB)
Title: Improvements in cylinder grinders
IPC: B24B33/08
Filed: 1927-12-28
Abstract: 298,410. Hutto, M. C. Dec. 28, 1927. Round holes, enlarging and trueing; rotating- tool apparatus.-A device for trueing cylinder bores consists of a body 1 with a central aperture 2 in which is a bolt 9 engaging two cones 3, 4, the cones respectively engaging the ends of pins 15, 16 which are die-cast on to parts 17 die-cast on to abrading-members 12, 14; movement of the cones, which are pressed apart by a spring 11, causes outward or inward movement of the abrading-members. The pins are held pressed against the cones by flat springs 18 engaging notches 21 in the pins and secured to the body 1 by screws 20. The tool is driven by a shaft 27 having a ball end 28 seating in a recess 31 in the body 1 and having driving pins 29, 30 engaging notches 32. The bolt 9 is prevented from accidental turning by a spring wire 22 passing through the bolt head and having coiled ends seated in a recess 7 in the cone 3. The cones, bolt, and spring are movable as a unit to allow the abrading-members 12 - - 14 to tilt slightly when the cylinder bore is slightly conical, and to cause the members to assume a parallel position as grinding proceeds.
Patent GB-308381-A (GB)
Title: Electric cable joint
IPC: H01R4/50
Filed: 1927-12-29
Abstract: 308,381. Yamanouchi, T. Dec. 29, 1927. Sleeve couplings for stranded cables comprise an outer sleeve 1 having an aperture 3 and air vent 10<1> for the introduction of melted solder both closed by screw plugs and furnished at the ends with right and left-handed screws 4, and a member 5 screwing into each end of the sleeve 1 and having a conical recess therein to accommodate a split wedge 6 that grips the cable end. The interior cavity of the wedge 6 is made conical at one end to co-operate with a second wedge 7 that spreads and grips the outer strands of the cable. The inner strands are passed through the wedge 7 and may then be spread. The sleeve 1 is filled with molten solder and the aperture 3 closed by a plug the head of which is then broken off.
Patent GB-902091-A (GB)
Title: Improvements in or relating to catches for doors and the like hinged or sliding panels
Inventor: JAMES JOHN MARTIN
IPC: E05C19/16
Filed: 1957-11-13
Abstract: 902,091. Permanent magnet fastenings. HARRISON (BIRMINGHAM) Ltd. Nov. 12, 1958 [Nov. 13, 1957], No. 35313/57. Class 44. In or for a catch of the kind comprising a magnetic element and a keeper element adapted for attachment either to a door or other panel and a door jamb or other part and so arranged that when secured one to each of these parts, the magnetic element and the keeper element can come into contact with one another and thus secure the door or other panel releasably in the desired position, the magnetic element comprises a permanent magnet 11 and a pair of ferro-magnetic polepieces 15, in contact with the magnet and adapted for sliding movement relative thereto, one polepiece being associated with each pole of the magnet and the polepieces presenting spaced faces of opposite polarity for contacting the keeper element, the arrangement being such that in use on the approach of, or on engagement with the keeper elements, sliding movement of one or both polepieces may occur such as to ensure closure of the gaps in the magnetic circuit between the polepieces and the keeper element, stop means 20 being provided to prevent removal of the polepieces from the magnet as the keeper element is withdrawn. As shown, the magnet is a bar magnet and it is mounted in a casing 10 made of brass sheet in the form of an open-sided box having integral flanges 12, the magnet 11 being shorter in length than the recess within the casing. Each polepiece has an extension 16 which projects through a slot 17 formed in one wall of the casing and these extensions are arranged to contact the keeper element 23 which comprises a length of mild steel strip having a central fixing hole; each corner of the keeper element has a spike 25 to engage the part to which it is fixed to prevent rotation. The casing 10 is provided with a closure-plate 18 formed from brass strip and this is provided with parallel slots 19 adjacent each polepiece to receive the stop means 20, the stop means are projections which are shorter in length than the slots so that the polepieces can slide lengthways of the slots 19 while remaining in contact with the end faces of the magnet. Any misalignment of the keeper element and casing causes a sliding movement of the polepieces so that no gaps occur in the magnetic circuit.
Patent GB-471142-A (GB)
Title: Process for the manufacture of magnetic alloys of the iron-nickel-aluminium type
IPC: C21C7/00
Filed: 1936-12-23
Abstract: Alloys of the iron-nickel-aluminium type for making permanent magnets are made by first melting down all the carbon-containing constituents such as iron, nickel, and cobalt in the absence of aluminium and any other readily oxidizable constituents such as titanium or beryllium, then reducing the carbon content to below 0,1 per cent, e.g. ,02 per cent, and then adding the aluminium &c.  Other carbon-free constituents such as copper may be included in the original charge or be added after the oxidizable constituents.  The carbon in the original charge is reduced by allowing access of air or by adding certain of the constituents, such as copper, iron, nickel, cobalt, chromium, manganese, and tin, in the form of oxides.  A slight excess of aluminium should be added to allow for oxidation.  Alloys consisting of (a) iron, 7-40 per cent of nickel, and 3-20 per cent of aluminium with or without one or more of the following: cobalt, copper, chromium, manganese, tungsten, molybdenum, vanadium, titanium, and (b) iron, 22,5 per cent of nickel, 10 per cent of aluminium, 13 per cent of cobalt, 5 per cent of copper and 0,12 per cent of carbon, are referred to.
Patent GB-1161893-A (GB)
Title: Improvements in or relating to Moisture-Curing Compositions
IPC: C08G18/32
Filed: 1966-08-08
Abstract: 1,161,893. Polyurethanes. TEXTRON Inc. 8 Aug., 1966 [9 Aug., 1965], No. 35335/66. Heading C3R. A normally liquid, moisture curable polyurethane composition is prepared by reacting: (A) an aromatic diisocyanate; (B) an ether diol of formula in which X is Cl or Br, n is 0-5 and R is a C 3-12  trivalent hydrocarbon radical; (C) a C 3-24  polyhydroxy ester of phosphorus which is a phosphate or a phosphonate; and optionally (D) a polyol: in which R1 is a C 2-12  hydrocarbon radical, R<SP>11</SP> is a C 2-4  alkylene radical, m is 0 or 1 and n is 0 0 to 50. The ratio of isocyanate to hydroxyl groups varies from 1.5 to 2.5: 1 and the weight ratios of ether diol to phosphorus ester and ether diol to polyol (when employed) range from 1: 10 to 10: 1. (A) may be tolylene diisocyanate, (B) may be pentachlorophenoxy glyceryl ether and (D) may be triethylene glycol. (C) may have the formula where m is 0 or 1, n is 2 to 6, x is 1 to 10 and R111 is an alkyl radical, e.g. di-(oxypropylene) butyl phosphate. Alternatively (C) may have the formula where p is 1 to 4, R<SP>111</SP> is a C 1-8  alkyl radical and R<SP>1111</SP> is a C 1-8  alkylene radical, e.g. 0,0-diethyl- N,N<SP>1</SP> - bis - (2 - hydroxyethyl) aminoethyl phosphonate. In order to improve its fire retardant properties the composition may also include a minor proportion of a tris-(haloalkyl) phosphate and ethylenediamine tetra-acetic acid. The compositions are useful in forming fire-retardant intumescent coatings for wooden surfaces.
Patent GB-789554-A (GB)
Title: Scanning mechanism for magnetic tape recorders
Inventor: THOMPSON LINCOLN
Filed: 1955-12-12
Abstract: 789,554. Magnetic recording and reproducing apparatus. SOUNDSCRIBER CORPORATION. Dec. 12, 1955, No. 35577/55. Class 40 (2). A scanning mechanism in a magnetic tape record apparatus having a rotating magnetic head, or heads, producing an interrupted track in the form of parallel traces substantially transverse to the length of the tape, is provided with a control lever to disengage the normal' drive of the tape to permit said tape to be moved independently of the feed means to facilitate scanning the tape during a reproducing operation. In the embodiment described, a wide band of tape 35 is drawn from a supply reel 19 by a drive roller 25 from whence it is received by a take-up reel 20 driven through a slipping clutch and a belt 62, Fig. 4, coupled to the shaft carrying the drive roller 25. This shaft is constantly driven, through a gear train, by a motor 13 which also drives, through a reduction gear 15, a turntable 14 carrying three magnetic heads (not shown). During a normal transducing operation, controls 64 and 74, pivoted on a common axis, are rotated counterclockwise to the position shown in Fig. 1. In this position control 64 effects drive of the tape by causing a jockey pulley 63, Fig. 4, to be pressed against the belt 62, and, through a link 70, a pressure roller 26 to be pressed against the tape 35 and drive-roller 25, while control 74 lowers a pressure-plate 33 on to the tape 35 and turntable 14. When it is desired to scan the tape quickly by manual means, the control 64 is rotated clockwise so that the pressure of jockey pulley 63 and pressure roller 26 is removed and the tape may be passed rapidly over the turntable 14 by manual rotation of the reels 19, 20 facilitated by handles 27, 28, respectively, thereon.
Patent GB-522141-A (GB)
Title: Improvements in and relating to electric snap-action switches
IPC: H01H23/12
Filed: 1938-12-07
Abstract: 522,141. Tumbler switches. CONTACTUM, Ltd., and BOLLINGHAUS, W. Dec. 7, 1938. No. 35676. [Class 38 (v)] In a switch in which a dolly 16 is connected to a movable contact member 13 through a dead-centre spring 17, the spring 17 is housed in a cavity in the member 13, integral projections on the sides of the member 13 serve as trunnions about which it pivots, and a plurality of apertures or depressions are formed in it to receive two or more bridging contacts extending across it. Positive actuation may be given by the dolly striking the side of the cavity approximately at the deadcentre position. Springs 26 or rubber buffers act as stops for the contact member. The movable contacts consist of strips of metal 14 passed through holes 13c in the member 13 and bent over at the ends. Or a contact strip may lie in a groove in the periphery of the member 13, the ends of the strip being bent over the sides and then into depressions.
Patent GB-863842-A (GB)
Title: Improvements in and relating to apparatus for locating a workpiece during the piercing of a plurality of holes therein
Inventor: RYALL MICHAEL LESLIE
IPC: B23Q16/02
Filed: 1958-11-07
Abstract: 863,842. Drilling; punching. PARSONS & MARINE ENGINEERING TURBINE RESEARCH & DEVELOPMENT ASSOCIATION. Sept. 25, 1959 [Nov. 7, 1958], No. 35798/58. Classes 83 (3) and 83 (4). Means for locating a workpiece during the piercing of a number of holes therein, comprises a workpiece holder 1, 4, having a number of apertures 3, 5, therein, and locating-means 6 which can be inserted through a hole pierced in the workpiece and through an aperture in the holder so that cumulative pitch-errors are avoided by always using the locating-means in the same workpiece hole. The holder consists of two spaced-apart plates 1 having non-parallel slots 3 aligned one above the other, and adjustable transversely of top and bottom plates 4 which are fastened to the machine and have aligned slots 5. When a hole has been pierced in work-sheet 2, which passes between the plates 1, the sheet is moved by the required pitch-spacing, and the locating-pin 6 is inserted through the work-piece hole as well as through a hole where four slots in the holder coincide. The Provisional Specification refers to drilling.
Patent GB-917262-A (GB)
Title: Picture frame mounting for television and radio receiver or loud speaker units
Inventor: ATTEWELL JOHN GRANVILLE
IPC: A47G1/06
Filed: 1959-10-22
Abstract: 917,262. Picture frames. ATTEWELL, J. G. Nov. 7, 1960 [Oct. 22, 1959], No. 35804/59. Class 11. A picture frame comprises a front open rectangular subframe 2, a back-plate 3, and generally concave sides 4 and is constructed so as to accommodate an electrical reproduction unit 1, i.e. a radio or television set or a loudspeaker or record player, therein, a picture on a roller blind 5 being located in the top of the sub-frame 2 on a roller 7 and adapted to be pulled down when the unit is not in use. The picture may be painted on canvas, rigid shutters, or slats or may be detachable from the blind so that it can be replaced when desired.
Patent GB-1280647-A (GB)
Title: A tool spindle assembly for machine tools
Inventor: TANABE YUTAKA
IPC: B23B29/034
Filed: 1969-07-16
Abstract: 1280647 Machine tool details IKEGAI TEKKO KK 16 July 1969 35882/69 Headings B3B and B3C [Also in Division F2] A boring, reaming, milling, drilling, tapping, or reaming, spindle assembly, comprises a rotatable sleeve 1 having an eccentric bore, a spindle 2 rotatable in the sleeve, and having an eccentric conical bore 13 in which is mounted the tool e.g. a boring bar 14. The sleeve and spindle are angularly movable relative to each other so as to vary the radial position of tool 15, and means are provided for rotating them at the same speed. Boring bar 14 is held in the spindle by a draw bar 31 actuated by springs 35, and is released by an hydraulic piston 25. The splined connection 38 between the draw bar and boring bar is adapted to be released by a cam and follower 32, 33, which turns the draw bar as it is moved axially. Spindle 2 is rotated by a gear 23 which meshes with a gear 21 and drives an Oldham coupling 19, and sleeve 1 is driven at the same speed by gear 21, which meshes with back lash preventing gears 47, 48 driving a shaft 45, and a differential gear 46, 49 to 54, which co-operates with a gear 56 on the sleeve. When the radial position of tool 15 is to be varied, a numerically-controlled electric motor 65 drives a worm-wheel 60, on a shaft 58 of the differential gear through gears 64, 63, and a worm 61, so that the relative speed of spindle 2 and sleeve 1 is changed. A calibrated disc 73 is provided in the drive and indicates the relative angular deviation of the sleeve and spindle. Motor 65 may be replaced by a handle.
Patent GB-824367-A (GB)
Title: Purification of terephthalic acid
Inventor: MACLEAN DUNCAN
Filed: 1956-11-28
Abstract: In a process for the purification of crude terephthalic acid, the impurities consisting of metal-containing and/or organic impurities a flow of an entraining gas is passed through a bed of the crude acid at a rate sufficient to fluidize the bed and at a temperature sufficient to volatilize and entrain the terephthalic acid and any organic impurities present which are volatile at the temperature of entrainment, the terephthalic acid and the organic impurities being removed from the fluidizing zone and the terephthalic acid separated from the entraining gas and collected. The bed containing the terephthalic acid may contain an inert solid, e.g. alumina and/or sand.  The process may be operated at atmospheric or sub-atmospheric pressure or continuously.  Examples are furnished.
Patent GB-1327095-A (GB)
Title: Process for the production of olefinically unsaturated nitrile/ styrene or alkyl-styrene/diene polymers
IPC: C08F279/04
Filed: 1970-07-28
Abstract: 1327095 Nitrile / (alkyl)styrene / diene copolymers STANDARD OIL CO 28 July 1970 [6 Nov 1969] 36393/70 Headings C3G and C3P Polymer compositions comprise the product obtained by copolymerizing (A) a monomer mixture of an olefinically unsaturated nitrile and styrene or an alkyl-substituted styrene in a molar ratio, maintained throughout the copolymerization, of from 5 : 1 to 80 : 1 in the presence of (B) a diene elastomer, said product containing 1-25% by weight of (B) and the molar ratio of nitrile/(alkyl)styrene polymerized and bound in the polymer product being from 1 : 1 to 5 : 1. Copolymerization is preferably effected in aqueous emulsion in the presence of a catalyst (e.g. azobisisobutyronitrile) and, optionally, a mercaptan molecular weight modifier and other additives. The nitrile monomer used is preferably acrylonitrile and the alkylstyrene monomer may be nuclear- or side chain-substituted by C 1 -C 4  alkyl groups. The diene elastomer is suitably a rubbery homopoly. mer or copolymer of butadiene, isoprene, chloroprene or piperylene; comonomers include acrylonitrile, methacrylonitrile, styrene, alphamethyl-styrene and ethyl acrylate. The desired nitrile/(alkyl)styrene ratio is maintained during copolymerization by either carrying the polymerization to low conversion or by adding further (alkyl)styrene monomer as polymerization proceeds. Polymerization can be effected batohwise, semi-continuously or continuously. The thermoplastic products obtained can be extruded or moulded into various shaped articles. or worked up in different procedures (a long list of articles and applications is disclosed). Inference has been directed by the Comptroller to Specification 1,185,306.
Patent GB-506152-A (GB)
Title: Improvements relating to sewing machines
IPC: D05B35/08
Filed: 1938-12-14
Abstract: 506,152. Sewing-machines; sewing. HUTCHINSON, O. G., and ARMSTRONG, E. W. Dec. 14, 1938, No. 36411. [Class 112] A lock-stitch sewing-machine having a laterally-vibrating needle is provided with a removable base-plate, attachable over the throat plate, formed with spaced upstanding horns or bosses and slotted between these horns, so that the material between the horns can be gathered by the stitches, for example to produce smocking ; the presser-foot is modified to co-operate with this base-plate. In the form shown in Fig. 9, the horns 10 are in the form of straight ribs with rounded tops, and the needle slot 6 in the plate extends into notches 11 in the horns so that the needle can enter the material 23 at the top of the horns. The presser-foot 12 is in the form of two C-shaped parts 15, 16 joined at their ends, leaving a slot for the lateral passage of the needle; a modified presser-foot, having only one C- shaped part 15, is shown in Fig. 5, the second C-shaped part 16 being shown dotted. In a modification, shown enlarged in Fig. 7, the horns 2, 3 are circular, with chamfered tops, and grooved at 6 to receive the needle 20 as before. This Figure shows the use of the device to produce openwork effects by gathering groups of threads from which the transverse threads have been removed ; the horn 3 is slotted at 5 to receive the connecting thread 22 between the stitchgroups binding the threads 19, this thread being removed if desired after the completion of the sewing. One of the horns may be made adjustable, one part of'the presser-foot being similarly adjustable or being dispensed with. The baseplate is located on the throat-plate of the machine by two or more dowel pins, and is secured by a part extending beneath the looptaker cover plate ; it may be recessed on its underside to clear the feed dogs. A pressorfoot need not be used if the work is held in an embroidery frame.