baber/WOPTO huggingface dataset:
Patent GB-837982-A (GB)
Title: Improved dye-receptive polymer compositions
IPC: C08L67/06
Filed: 1957-05-22
Abstract: A dye-receptive composition comprises a synthetic linear hydrophobic polymer in which is incorporated a cross-linked, water-insoluble vinyl lactam polymer.  Specified hydrophobic polymers are polyamides, polyesters, polyolefines or acrylonitrile polymers.  Specified vinyl lactam polymers are cross-linked polyvinyl pyrrolidone and copolymers of vinyl lactams and polyfunctional monomers, e.g. diethylene glycol bis allyl-carbonate, methylene-bis-acrylamide, divinyl benzene, diethylene glycol divinyl ether, diallyl phthalate, diallyl glycerol, triallyl cyanurate, trimethallyl isocyanurate, triacrylyl-perhydrotriazine, diallyl adipate, diallyl maleate, diallyl-fumarate, diallyl succinate, diallyl sorbitol, diallyl benzene phosphonate, diallyl pentaerythritol, ethylene diacrylate, allyl acrylate, allyl methacrylate, 2,4-diallyloxy - 6 - amino - s - triazine and 1,5-pentadiene.  The vinyl lactam polymers may be blended into fibre-forming compositions before fabrication or by impregnation of shaped articles, e.g. fibres, in swollen or gel condition.  The examples describe the preparation of the vinyl lactam polymers which are washed, dried and comminuted with aqueous zinc chloride to form dispersions, the dispersions being mixed with aqueous solutions of polyacrylonitrile, nylon 6-6 and polypropylene and wet spun into aqueous coagulants containing zinc chloride, and the impregnation of polyacrylonitrile fibres in swollen or gel condition.  The resultant fibres may be dyed with organic dyestuffs, of which many are specified.  U.S.A. Specification 2,831,836 is referred to.
Patent GB-112118-A (GB)
Title: Improvements in or relating to Fish Plates for Switch Tongues on Railways.
Inventor: NAYLOR ALBERT VICTOR
IPC: E01B7/02
Filed: 1917-11-07
Abstract: 112,118. Naylor, A. V. Nov. 7, 1917. Point-tongues, mounting of.-A point-tongue is jointed to the end of a rail a by means of a pair of built-up laminar springs c in the form of fish-plates. The leaves of the springs are bolted together at d and are provided with bolt holes c for attachment to the rail and tongue.
Patent GB-776706-A (GB)
Title: Organosilicon compounds
IPC: C07F7/08
Filed: 1955-06-07
Abstract: The invention comprises compounds of the formula: <FORM:0776706/IV(a)/1> and <FORM:0776706/IV(a)/2> where A is fluorine or chlorine, R is a saturated aliphatic or an aryl hydrocarbon radical, with or without halogen substitution, and n is 0, 1, 2 or 3, and polysiloxanes, including copolymers, derived therefrom.  The silanes are prepared by heating a hexahalocyclopentadiene: <FORM:0776706/IV(a)/3> with a vinyl silane H2C = CH-SiRnCl3-n.  The siloxanes are obtained by hydrolysis of the silanes, if desired together with silanes of the formula R1ySiZ4-y, where R1 is a monovalen hydrocarbon or halogenated hydrocarbon radical, y is 1, 2 or 3 and Z is a hydrolysable radical.  Alternatively, the siloxanes are obtained by reacting a vinyl siloxane polymer or copolymer with a hexahalocyclopentadiene (III).  In the examples: (1) 6 - [1,2,3,4,7,7 - hexachlorobicyclo - (2.2.1) - 2 - heptenyl] methyldichlorosilane is prepared from hexachlorocyclopentadiene and vinylmethyldichlorosilane, and is hydrolysed to the corresponding siloxane; (2) the silane reaction product of (1) is cohydrolysed with trimethylchlorosilane to give heptamethyl - 3 - [6 - 1,2,3,4,7,7 - hexachlorobicyclo(2.2.1) - 2 - heptenyl] - trisiloxane; (3) the disiloxane: <FORM:0776706/IV(a)/4> is prepared by heating tetramethyldivinyldisiloxane with hexachlorocyclopentadiene in a nitrogen atmosphere; (4) the silane: <FORM:0776706/IV(a)/5> is prepared from 3,5,5,-trifluorotrichlorocyclopentadiene and vinylphenylmethylchlorosilane, and is hydrolysed to the corresponding disiloxane; (5) vinylchlorophenyldimethylsilane is reacted with 5,5-difluorotetrachlorocyclopentadiene to give the compound: <FORM:0776706/IV(a)/6> (6) 5-fluoropentachlorocyclopentadiene is reacted with vinyltrichlorosilane to give: <FORM:0776706/IV(a)/7> which on hydrolysis gives the corresponding siloxane (-SiO3/2).  It is also cohydrolysed with equimolecular quantities of phenyltrichlorosilane, dimethyldichlorosilane and (CF3C6H4) Si(CH3)Cl2 to give a resinous copolymer; (7) vinyltrichlorosilane is reacted with the compound: <FORM:0776706/IV(a)/8> to give a mixture of isomers of Formul  I and II where A is F and n is 3.  On hydrolysis, the corresponding resinous polysiloxane is obtained.ALSO:Hexahalocyclopentadienes containing 1 to 4 fluorine atoms are prepared by heating octachlorocyclopentene with stoichiometric amounts of antimony trifluoride to 150 DEG  C., and then dehalogenating the resulting octahalocyclopentenes by reacting them in ethanol with zinc under reflux.  Specified products are 5-fluoropentachloro-, 3,5- and 5,5-difluorotetrachloro-, 3,5,5- and 2,5,5-trifluorotrichloro-, and 1,2,5,5-and 3,4,5,5-tetrafluorodichlorocyclopentadienes.
Patent GB-529743-A (GB)
Title: Improvements in the manufacture of non-symmetric reflectors for directional lightingfittings
IPC: B21D53/88
Filed: 1939-06-05
Abstract: 529,743. Reflectors for lighting fittings. GENERAL ELECTRIC CO., Ltd., BEGGS, S. S., and BROWN, A. G. June 5, 1939, No. 16455. [Class 75 (ii)] [Also in Group XXII] Reflectors for use in directional lighting- fittings are made by spinning a dome or cone from thin material such as anodically oxidised aluminium or nickel plated copper to produce a surface of revolution which is then deformed by applying to one or both rims a constraining member such as a ring which causes the cross section of the reflector to become elongated. The reflector may be soldered to the ring. In a modification the constraining member is part of a fitting into which the reflector is placed but to which it is not attached. Specification 213,373, [Class 75 (ii)], is referred to. Reference has been directed by the Comptroller to Specification 522,043.
Patent GB-888893-A (GB)
Title: Improvements in or relating to electrical connectors
IPC: H01R4/48
Filed: 1959-05-06
Abstract: 888,893. Binding posts. GENERAL ELECTRIC CO. Ltd., and PHILLIPS, F. C. F. April 29, 1960 [May 6, 1959], No. 16577/59. Divided out of 888,892. Class 38 (1). An electrical connector comprises two resilient conductive strips 1, 2, e.g. of beryllium-copper alloy, connected at one end to a support 12 and having cooperating V-shaped surfaces 5, 6 resiliently urged together to grip a thin wire 9 or a thick wire 11. The wire and conductive strips may be connected to an electrical supply through a tag 16.
Patent GB-241259-A (GB)
Title: Improvements in electric means for indicating and/or recording the movements of bodies
IPC: G01R17/08
Filed: 1924-07-10
Abstract: 241,259. Campos, G., and Usigli, B. July 10, 1924. Tell-tale apparatus.-In a system for indicating or recording the movements of a part, such as the indicator or recorder of a measuring instrument or a floating body for indicating liquid levels &c., the part, by actuating a variable inductance, upsets the balance of electrodynamic devices and effects movement of an indicating part. This latter part during movement varies a second inductance to restore the balance. As shown in Fig. 2, parallel circuits C, C<1> supplied from alternating current mains L include electrodynamic devices A, B, A<1>, B<1> and inductance coils I, I'. The part M, the movement of which is to be indicated, controls the core of the inductance I so that when displaced the balance of the coils AB; A<1>B<1> is upset and an arm E is moved by the pivotally mounted coils B, B' to select one or other of the contacts N , N<1> and operate a motor P. The motor operates, through gearing Q, R, the part M' which controls the indicating apparatus. Simultaneously, the core of the inductance I<1> is adjusted to re-establish equilibrium between the electrodynamic devices and open the motor circuit. The stator U is the motor, which is supplied from a separate source of power, is connected in series with resistances V, V<1> between which a connection is made to the rotor. In a modification, the coils B, B<1> control a toothed sector which is meshed directly with the rack T.
Patent GB-1216564-A (GB)
Title: Improvements in or relating to railway bogies
Inventor: WILSON ERIC JOHN
IPC: B61F3/06
Filed: 1968-04-06
Abstract: 1,216,564. Railway bogies. ENGLISH STEEL CORP. Ltd. 3 July, 1969 [6 April, 1968], No. 16661/68. Heading B7L. A railway bogie comprises a bogie frame, having a leading axle 10 and a trailing axle 17, and a pony axle 12 in advance of the leading axle 10, the bogie frame including a rigid bolster 1 supported midway between the longitudinal axes of leading and trailing axles 10 and 17 on compression springs 3 in openings 4 in the sidemembers 5 of the bogie frame, the sides 6 of the opening 4 being a close fit to the sides 7 of the ends 2 of the bolster 1 with an arm 8 extending rigidly from the bolster 1 to the pony axle 12. As shown, the arm 8 extends integrally from the middle of the bolster 1 and divides to lie outside the wheels 11 of the pony axle 12 with compression springs 13 housed in the divided ends 14 and seated on pony axle boxes 15. A vertical pivot socket 16 is provided along the arm 8 at a distance from the bolster 1 determined by the weights of the unsprung means such that the pony axle 12 is subjected to an equal or lesser load than the axles 10 or 17; alternatively, the pivot socket is provided at the middle of the bolster 1. The axles 10, 17 of the bogie frame are each provided with a motor and gear-box 9, 19 respectively and the arm 8 is arched over motor and gear-box 9 from the bolster 1 which is also arched between its ends 2. The motor casings may be provided with interengaged extensions so that any reaction on one motor is transmitted to the other as described in Specification 1,216,252.
Patent GB-530316-A (GB)
Title: Improvements in and connected with cigarette cartons or packages
IPC: B65D5/72
Filed: 1939-06-07
Abstract: 530,316. Cigarette cartons. BRITISHAMERICAN TOBACCO CO., Ltd.. (Bergmann Zigarettenfabrik Ges. H.). June 7, 1939. No. 16899. [Classes 66 and 94 (i)] A wedge-shaped flap 4 provided with a fingerpiece 5 is disposed under the wrapper 3 in which the cigarettes are sheathed; when the flap is raised the wrapper is torn against the edges k, k' of a correspondingly shaped opening in the carton body, exposing the contents as shown. The flap 4 may have an extension abutting against the ends of the cigarettes and a further extension underlying them. The invention may be applied to slide cartons.
Patent GB-1406053-A (GB)
Title: Non-contact gauging apparatus
IPC: G01B13/00
Filed: 1972-04-11
Abstract: 1406053 Air gauge THOMAS MERCER Ltd 10 April 1973 [11 April 1972] 16732/72 Heading G I M An air gauge head 1 is balanced and supported at a substantially constant distance from a work surface 8 by the pressure of air supplied through 6 to a disk shaped recess 9. Height deviation is measured by a dial gauge or electronic probe 3. The clearance 2 can be increased by increasing the pressure or increasing the diameter of the head.
Patent GB-452336-A (GB)
Title: Improvements in cycle saddles
IPC: B62J1/10
Filed: 1935-06-11
Abstract: 452,336. Saddles. BROOKS & CO., Ltd., J. B., and HORDEN, H. R., Criterion Works, Great Charles Street, Birmingham. June 11, 1935, No. 16759. [Class 136 (iii)] In a top for cycle saddles, of the type having turned-down sides, without depending side flaps, and supported only at the front and rear, as by a nose-piece and back-plate, means are provided for preventing outward displacement of the turned-down sides under load, for example by the use of transverse ties ; alternatively or additionally the lower edges of the side portions may be reinforced by folding, or by wires, &c. The top 1 is made of leather, fabric, &c., and has turned-down side parts 2, which are devoid of the usual side flaps and have substantially straight horizontal lower edges, curving downwards somewhat at the rear to join the cambered rear edge 3. The lower edges are reduced in thickness and are folded inwards at 4 and secured to the underside of the top by stitching 5, &c., Fig. 5, thus reinforcing the edges and resisting sagging under load. The edges may be additionally reinforced by cords, rods, &c. or by a wire frame 6 threaded through the beadings formed by the folding, a closed end 6a of the wire frame being situated at the peak. The ends of the frame 6 may be free at the rear, or may be joined together across the saddle top. In order to resist outward displacement of the side parts 2, they are tied together transversely, as by integral or separate tongnes 7, Figs. 3 and 4, which may be coupled together by a metal plate 8 secured by rivets 9. In a modification, the transverse tie consists of a wire link connected to loops or eyes on the wire frame 6. In a further modification, the side parts 2 are drawn inwards by resilient wires arranged similarly to the wires 6.
Patent GB-145501-A (GB)
Title: Improvements in and connected with rotary blowers
IPC: F04C18/12
Filed: 1920-06-21
Abstract: 145,501. Daimler-Motoren-Ges. June 20, 1918, [Convention date]. Drawings to Specification. Movable-abutment type. - Rotary blowers, especially the Roots'-blower type, are adapted to be driven at high speeds from 2000 to 20000 revolutions per minute, the general shape of the parts being unaltered. The gear wheels are rigidly connected to the pistons in order to prevent any relative movements of the parts.
Patent GB-258836-A (GB)
Title: A process of preparing cellulose for the manufacture of artificial silk and other purposes
IPC: D01F2/00
Filed: 1926-07-05
Abstract: 258,836. Kaufmann, W., (Assignee of Kohler, M.). Sept. 28, 1925, [Convention date]. Pulp, preparation of.-A high grade cellulose free trom hemi-cellulose is obtained by comminuting cellulosic rags, separating the cellulose fibre from any mechanical impurities, lixiviating the fibre with alkali under heat and pressure to extract the hemi-cellulose, if desired subjecting the lixiviated material to a mild bleaching, and finally drying the product. The product may be used for the manufacture of fine paper. For the lixiviating step the material is conveniently treated for 1-10 hours under a pressure of 1-5 atmospheres with a 3-20 per cent solution of unslaked lime, or a 3-15 per cent solution of caustic alkali to which sodium carbonate may be added, the solution being agitated as by circulation etc.; and it is necessary that the access of air should be prevented, for instance, the autoclave may be exhausted before or after the lye is introduced. After lixiviation the mass mav be bleached employing for this purpose a weak chlorine solution to which acid may be added. The material is finally dried in a centrifuge giving in this case a flaky product, or alternatively on the cylinders of a drying machine if a product in the form of plates or sheets is desired. During bleaching and drying a temperature not exceeding 100‹ C. is preferably employed. The Specification as open to inspection under Sect. 91 (3) (a) includes the treatment of cellulose waste other than woven material. This subject-matter does not appear in the Specification as accepted.
Patent GB-166909-A (GB)
Title: Improvements in parachute-flares
IPC: F42B10/56
Filed: 1919-07-04
Abstract: 166,909. Holt, H. E. S. July 4, 1919. Pyrotechnic apparatus and devices.-Relates to parachute flares adapted to be dropped from aircraft to facilitate night reconnaissances. According to the invention, a pilot parachute opens first, and operates through the sustaining-cord, a time fuze or mechanical means which ignites the flare, with suitable delay, and effects the release from the flare of a casing containing the main supporting-parachute. The pilot parachute then pulls off the casing and floats away, leaving the flare supported only by the main parachute. in the construction snown in Fig. 1, the main parachute c is contained in a casing d connected to the consumable flare casing b by a cord e, which passes through eyes d' on the casing d, guide tubes e<1> on the casing b, and over the reduced mouth of the flare casing. The cord is burnt through when the flare is ignited by the means described below. The pilot parachute q is contained in a detachable cap h connected by a cord and eye h<1> to the aircraft, so that the cap is pulled off and the pilot parachute released as the flare falls. The parachute g is connected to the casing d through means which effect the delayed ignition of the flare and consequent release of the casing d. One form of the connection is shown in Fig. 2. The parachute cord l is wound round a screwed spindle j working in a bearing and nut i on the top closure f of the casing d. The plain end of the spindle obstructs a spring striker k until the spindle is screwed out of the way by the unwinding of the cord l. The striker is then projected on to a percussion cap k<1> and starts the burning of a time fuze, a form of which is shown in Fig. 10. Instead of freeing a percussion striker k, the screwed spindle j may effect the closing of an electric firing-circuit, or may ignite a friction compound. The percussion cap or primer k<1> ignites the fuze composition in an arm k<2>, the outer end of which carries a pricker s, Fig. 10. A flanged disc q carrying a ring of fuze composition q<2> in a peripheral groove q<1> is rotatable under the arm k<2>, and is set in a position corresponding to the desired delay. The fuze q<2>, which is connected to the flare igniter, is then punctured by the pricker s. The flare, in burning, severs the cord e and frees the casing d, which is then pulled away by the pilot parachute, leaving the main parachute free to open. In modifications, (1) the flare is ignited electrically by the automatic closing of a switch as the flare leaves the discharge apparatus on the aircraft, and by burning severs, firstly, a cord retaining the cap h, and secondly, the cord e. The cap in this case is not connected to the aircraft, but together with the pilot parachute, is expelled by a spring when the retaining cord is burnt through. (2) The cord e is released mechanically by means operated by the parachute cord l and a spring-actuated bolt. The casing d has guide fins.
Patent GB-208487-A (GB)
Title: Improvements in electric power systems
IPC: H02H7/06
Filed: 1923-06-28
Abstract: 208,487. Meyer, C. June 28, 1923. Cut-out arrangements.-A supply system, comprising a number of generators connected in parallel and a number of consuming circuits, is provided with means for disconnecting automatically one or more of the consuming circuits when one of the generators becomes inoperative. Generators m<1>, m<2>, m<3>, Fig. 1, are connected to a bus-bar s through switches a<1>, a<2>, a<3> coupled to switches b<1>, b<2>, b<3>. Consumption circuits i<1> - i<4> are connected to the bus-bar s through switches d<1> - - d<4> provided with trip-coils e<1> - -e<4>. The trip-coils are connected to an auxiliary busbar s<1> through switches f<1> - - f<4> and the bus-bar s' is adapted to be conected to the bus-bar s through the switch b<1>, b<2>, or b<3> and a second switch c<1>, c<2>, or c<3>. If it be desired to disconnect the circuits i<1>, i<2> when one of the generators m<1>, m<2> fails the switches f<1>, f<2> and c<1>, c<2> are closed, and when the generator, say m<1>, fails the bus-bar s<1> is energized and the switches d', d<2> are tripped. In the modification shown in Fig. 2, the tripping-coils of the switches d<5> - - d<8> are energized from the consuming circuits in such a manner that the coils are de-energized after the consuming circuits are disconnected.
Patent GB-1137096-A (GB)
Title: Improvements in or relating to glass melting apparatus
Inventor: HAWKINS FRANK SWAIN
IPC: H01B1/08
Filed: 1966-04-18
Abstract: 1,137,096. Glass melting furnace walls. GLASS TUBES & COMPONENTS Ltd. 14 July, 1967 [18 April, 1966], No. 16929/66. Heading F4B. In a glass melting furnace as disclosed in Specification 1,137,095, the tank blocks and electrode(s) are alternatively made either of SnO 2  with an addition of 0.5% copper oxide or 1À0% Sb 2 O 3  or of Mo or W metal or sintered zirconia with the addition of an oxide of Ca, Mg, Ce or Yt. The other details are as in the aforementioned Specification.
Patent GB-573040-A (GB)
Title: Improvements relating to variable speed power transmission mechanisms
IPC: F16H3/16
Filed: 1943-10-15
Abstract: 573,040. Variable-speed gearing. HUMBER, Ltd., and KAMPER, A. M. Oct. 15, 1943, No. 16981. [Class 80 (ii)] A single gear c and compound gear d, e, on a driving shaft a mesh with a compound gear h, i, and single gear g on a driven shaft b and are arranged as shown in Fig. 1 freely mounted on the shafts. Clutch members f, j, splined on the shafts a, b, respectively, may be moved to engage the gears c, d and i, g, respectively to give four forward speeds. For reversing a third shaft k has a compound gear m, n, the gear portion n meshing with i. A gear o splined to the driving shaft a may move to mesh gear portion m, and operation of the clutch member j will give two reverse speeds. In a modification, clutch f is omitted and gear c is splined to the shaft a and has dogs engageable with dogs on gear d. The compound gear m, n is omitted and a wide gear-wheel on the third shaft k always meshing the gear c may be moved to engage the gear h for reverse speeds.
Patent GB-116032-A (GB)
Title: High Tension Ignition Magnetos.
Inventor: CHAILLIEY GEORGES AURELIEN
IPC: H02K21/30
Filed: 1917-11-19
Abstract: 116,032. Chailliey, G. A. June 5, 1917, [Convention date]. Magneto - electric machines. - The polar masses b, b<1> of a magneto are provided with recesses c which facilitate the casting of the masses b, b<1> upon aluminium or non-magnetic alloy shells a. The polar masses b, b<1> and the shells a form a cylinder, upon which semi-circular magnets f are placed, the ends of the magnets being flush with the sides of grooves c in the masses b, b<1>. The magnets f are placed between flanges of non-magnetic material and secured to the polar masses by screws g.
Patent GB-314060-A (GB)
Title: A process for the manufacture of carbon bi-sulphide
IPC: C01B31/26
Filed: 1929-06-05
Abstract: 314,060. Oehme, H., and Chemische Fabrik Kalk Ges. June 23, 1928, [Convention date]. Carbon bisulphide; sulphuretted hydrogen. - Sulphuretted hydrogen obtained from coal distillation gases by condensation as ammonium sulphide, and expulsion from the ammonium sulphide by heating or by passage of carbon dioxide, is passed over incandescent carbon to obtain carbon bisulphide. The temperature is controlled so that about 70 per cent of the sulphuretted hydrogen is converted. The gas remaining after condensation of the carbon bisulphide is treated to separate the sulphuretted hydrogen by absorption in ammoniacal liquor and expulsion by heating or by carbon dioxide.
Patent GB-421191-A (GB)
Title: Improvements in or relating to supports or stands for hammocks and the like
IPC: A45F3/24
Filed: 1933-06-17
Abstract: 421,191. Hammock stands. PICKFORD, C. H., 67, Belgrave Road, Oldham. June 17, 1933, No. 17308. [Class 52 (ii)] A hammock stand or support of the kind formed of detachable sections and comprising spaced longitudinal base members 1 and converging end members 2, 3 extending upwardly from and supported solely by the base members, has a cross member 7 connected between the base members to resist outward displacement. The stand is formed of metal tubing sections joined by spigot and socket couplings. The cross member 7 is rigidly connected to two centre sections 6 with spigots adapted to enter the ends of sections 4, 5 which are upturned at 9, 10 to engage the inclined sections 11, 12. End sections 13, 14 with studs 19 for the hammock are fitted to the sections 11, 12 and have cross bars 17. Reference has been directed by the Comptroller to Specification 21562/14, [Class 52 (ii)].