baber/WOPTO huggingface dataset:
Patent GB-613963-A (GB)
Title: Improvements in or relating to the polymerisation of unsaturated compounds
IPC: C08F18/08
Filed: 1946-05-22
Abstract: One or more mono-olefinic compounds having the group CH2=C< is or are polymerized in the presence of an oxygen liberating catalyst, the concentration being so regulated as to maintain the measured oxidation-reduction potential of the mixture within a range corresponding to a suitable range of catalyst concentration. Monomers specified are vinyl chloride and acetate, acrylonitrile, styrene, vinylidene halides, acrylic acid, a -chloroacrylic acid, methyl methacrylate and ethyl acrylate. Catalysts specified are organic peroxides such as benzoyl and tert.-butyl hydro-peroxides, ammonium persulphate and peracids, and hydrogen peroxide.  Reducing agents such as sodium bisulphite, ascorbic acid and zinc formaldehyde sulphoxylate may be used in conjunction with the catalysts and may be added to regulate the catalyst concentration.  The potential is usually determined by a potentiometer and two electrodes such as a calomel half cell or a silver-silver chloride electrode and a platinum, tungsten, carbon of antimony electrode, the desired range of oxidation-reduction potential varying with the pH of the system and being determined by trial and error.  By electrical and mechanical devices the process may be made automatic.  The medium for the reaction may be water, alcohols or water-alcohol mixtures. Longchain sulphonated alcohols may be used as emulsifiers and ferric ammonium sulphate as activator.
Patent GB-168681-A (GB)
Title: Manufacture of new ortho-oxy-azo-dyestuffs
IPC: C09B45/16
Filed: 1920-06-08
Abstract: Monoazo dyes are obtained by coupling diazotized 2-aminophenols containing one or more halogen atoms or nitro groups or both, or homologues of these compounds, with 8-halogen-1-naphthol-5-sulphonic acid.  In examples, 4-chloro-2-diazophenol or 4-nitro-2-diazophenol is coupled with 8-chloro-1-naphthol-5-sulphonic acid in alkaline solution; the 4 : 6 - dichloro-, 3 : 4 : 5 : 6-tetrachloro-, 4-bromo-, 4-methyl-6-bromo-, 4 : 6 - dinitro, and 4-methyl-5-nitro-derivatives of 2-aminophenol are also specified as diazo components.  The products give dark blue, black, &c. shades on wool with chrome mordants.  4-Methyl-5-nitro-2-aminophenol is obtained by treating 4-methyl-2-aminophenol with phosgene, nitrating the carbonyl compound so obtained, and saponifying.
Patent GB-276307-A (GB)
Title: Method of maintaining the stability of dibasic calcium hypochlorite
IPC: C01B11/06
Filed: 1927-06-10
Abstract: 276,307. I. G. Farbenindustrie Akt.- Ges. Aug. 18, 1926, [Convention date]. Dibasic calcium hypochlorite prepared according to Specification 188,662 and with the formula 2 Ca (OH)2 Ca (OCl)2 is maintained in a stable state by keeping it with a. final moisture content of 5-15 per cent after separation from the mother liquor by centrifuging. Specifications 8476/07. 182,927, 232,560 and 242,805 also are referred to.
Patent GB-1082684-A (GB)
Title: Improvements in and relating to openwork woven fabrics
Inventor: PISKOZUB ZDZISLAW TADEUSZ
IPC: D03D19/00
Filed: 1963-04-19
Abstract: 1,082,684. Leno woven glass fabrics. T. J. SMITH & NEPHEW Ltd. July 20, 1964 [April 19, 1963], No. 15561/63. Heading D1K. A fabric for plaster casts has warp threads 9 of multifilament glass that are substantially straight and are bound to the weft 10 by leno woven threads 11 of cotton or rayon staple fibre that are woven with a lesser tension than the warp threads 9. The weft may be of multifilament glass and the glass threads may be sized.
Patent GB-576466-A (GB)
Title: Improvements in and relating to valves
IPC: F16K15/10
Filed: 1944-09-22
Abstract: 576,466. Valves. BROWETT LINDLEY, Ltd., (formerly BROWETT LINDLEY (1931), Ltd., J.), and HUTTON, J. Sept. 22, 1944, No. 15596/45. Divided out of Complete Specification of 576,449. Drawings to Specification. [Class 135] In a valve of the kind comprising a valve plate and a valve seat, both having a series of openings therein for passage of the controlled fluid, and perforated cushion and guard plates, the valve and cushion plates are identical and interchangeable. The invention is described in connection with the valves illustrated in Specification 576,449. Specification 550,403 also is referred to.
Patent GB-1306113-A (GB)
IPC: C23C14/18
Filed: 1970-04-02
Abstract: 1306113 Vapour deposition of metals WESTERN ELECTRIC CO Inc 2 April 1970 [4 April 1969] 15602/70 Heading C7F Multi-layer thin films are deposited by evaporation in the presence of a non-reactive gas, e.g. argon, helium, neon, xenon, krypton, radon or hydrogen, at a pressure of 10 to 70 microns of Hg. The substrate may be, glass, glazed ceramic or high melting metals, and the metal films, Au, Ag, Cu, Al, Fe, Ni or Fe-Ni alloy. The substrate may be masked. The metal may be heated by a tungsten coil or it may form the coil itself.
Patent GB-562099-A (GB)
Title: Improvements in or relating to trailers for elevating trucks, such as stillage trucks
IPC: B60P1/02
Filed: 1942-11-05
Abstract: 562,099. Trailer vehicles. AERO ENGINES, Ltd.; and HALLIDAY, G. F. Nov. 5, 1942, No. 15629. [Class 108 (i)] A trailer, for carrying bar stock and loads such as timber and intended for use with elevating trucks such as described in Specification 534,816, has its fore-part, forming a stillage, connected to its rear part by a boom whose forward end connected to the stillage portion, is capable of universal movement of limited amount. In the elevation, Fig. 1, the boom 19 is shown with its rear end carried on a structure mounted on a pair of wheels 23 and with its forward end connected through a turn-table to the stillage portion 1 of the trailer provided with four legs 3, the platform 41 of an elevating truck being shown in position for supporting the stillage portion 1 and retaining it in position by pivoted sprags 42, 43. The boom 19 comprises two telescoping parts 20, 21, the inner part 20 being rotatable in the tubular outer part 21 and secured to a cross-member 18 transversely pivoted to the upper part of the turn-table. Means, operated by a handle 36, are provided for locking the boom at the required extension.
Patent GB-860776-A (GB)
Title: Improvements in or relating to electric resistance welding apparatus
Inventor: DONELAN JAMES ARTHUR
IPC: B23K11/31
Filed: 1958-05-15
Abstract: 860,776. Welding by pressure. GENERAL ELECTRIC CO. Ltd. May 15, 1959 [May 15, 1958], No. 15669/58. Class 83 (4). An electric resistance-welding apparatus comprises a stand, base or like support 1, a welding- head 4 for the welding-electrodes, 6, 7, a universal ball-joint 2 between the stand &c. and the head to permit the head to be set in different positions relatively to the stand &c. and remote control means for controlling the welding operation. In the centre of a table 1 is mounted the ball-joint 2 comprising a ball-and-socket arrangement in which the ball is acted on by an hydraulically-loaded plunger, with means 3 for clamping it, and attached to the joint is the head 4 comprising in a box-like part 5 a transformer which supplies two copper electrodes 6, 7. The electrode 7 is mounted on a fixed arm 9 while electrode 6 is mounted on an arm 8 movable by a foot-operated lever or pedal, mounted beneath the table, via a flexible cable 11. The arm 8 contains a micro-switch which is closed when the electrodes are pressed on to the work to start the current flow. The pedal need not be fixed to the stand and the cable may be led through the universal joint. The head may be actuated by fluid-pressure or electromagnetic means through a flexible connection to a pedal. The ball-joint may be of the friction type.
Patent GB-480418-A (GB)
Title: Safety lock
IPC: E05B63/20
Filed: 1937-06-07
Abstract: 480,418. Locks and latches. KORESKA, R. J. June 7, 1937, No. 15702. [Class 44] A night latch, operated by a rotating barrel lock and a knob connected together by a " lost motion " coupling is fitted with a blocking-plate actuated by the lock cylinder, to hold the latch in its shot position together with a knob follower adapted to lie behind a shoulder on the latch when the door is slammed. The lock cylinder 2 is coupled to the knob 6 by means of an annular ring 33 and arms 38, 39, which project into the hour-glass-shaped opening 8. The ring 33 has an arm 40 which moves in a slot 60 to actuate a blocking-plate 51 which holds the latch 17 in the shot out position by means of a tooth 58 and flange 59. A spring- loaded ball acting on a cam plate holds the plate 51 in its extreme positions. To unlock the door from the outside, the key is turned counterclockwise which causes the arm 40 to move plate 51 downwards to allow flange 59 to clear stop 58 ; on further movement of the key the disc 7 is rotated and the latch bolt retracted by the wing 42 of the plate 13. If the door is slammed, with the plate 51 in the unblocking position, the latch 17 retracts and the tongue 42 of wing 16 is released from the hook 44 which allows the spring 10 acting on the disc 7 to cause the wing 16 to fall behind the projection 45 attached to the latch 17 so as to prevent forcing back of the latch by illegitimate means. If when the door is open, the latch 17 is forced as far as possible by the fingers into the front wall 27 the edge 45 will slide along the curved edge 49 on the wing 16 causing it to rotate and then slide into a cut 50 which will hold the latch in the withdrawn position. A modification is described in which a cylinder lock placed in the inner knob cam actuate the plate 51 so that the latch 17 can be blocked from the inside or outside. A method of attaching the rear plate to the casing consists of teeth 29, on plate 5 which is rigidly attached to the door, coacting with the teeth 25 on part 23, the relative positions being maintained by screws passing through the front wall 27 and lugs 30. The latch head is connected to the latch holder by a pin so that by rotating it through 180‹ the latch may be made right-hand or left-hand.
Patent GB-383644-A (GB)
Title: Improved process of colouring fibrous materials
IPC: D06P1/92
Filed: 1931-05-29
Abstract: In dyeing and printing fibres, yarns and fabrics, the dyestuff is dissolved in concentrated sulphuric acid diluted with an organic diluent miscible with water, and is precipitated upon the fibres by treating with an aqueous reagent.  The solution of the dyestuff may be diluted before use, with a diluent containing water, provided sufficient sulphur trioxide is present to prevent precipitation of the dyestuff.  In examples: (1) cotton cloth previously mercerized is printed with a dye solution prepared from Indanthrene brilliant green B, concentrated sulphuric acid and phenolsulphonic acid, and the dye washed off after 20 secs.; the printed parts are dyed green and have a linen like, transparent appearance; a similar effect is obtained when the cotton is run through the dye solution and rinsed after 20 secs., but by using the dyestuff solution diluted with a greater quantity of phenolsulphonic acid, normal prints or dyeings are obtained without the parchmentized finish; (2) a diluent free from water is obtained by sulphonating phenol and adding oleum; (3) a dye solution prepared from Caledon blue GCP, sulphuric acid and the mixture obtained by treating phenol with concentrated sulphuric acid is printed on cotton; (4) Caledon jade green is dissolved in a solvent prepared as in example 2 : (5) Caledon jade green is dissolved in sulphuric acid and phenol added; (6) Caledon Blue GCP is dissolved in sulphuric acid and the mixture obtained by treating pale cresylic acid with sulphuric acid monohydrate added; (7) a similar dye solution is prepared using Caledon Red BN.  The sulphuric acids obtained according to the processes of Specifications 236,643, [Class 15 (ii), Dyeing, Processes &c. for], and 241,246, [Class 100 (ii), Printing processes &c.], and pyridine are mentioned as diluents, and also the following dyestuffs: Permanent red 4R, Indanthrene brilliant violet 3B, Permanent orange G extra, Permanent red 4R and vat dyestuffs in general and pigments, e.g. those obtained by coupling diazotized amino compounds with naphthols or substituted naphthols, which are soluble in concentrated sulphuric acid.
Patent GB-229555-A (GB)
Title: Improvements in or relating to briquettes or fire kindlers
IPC: C10L5/10
Filed: 1924-06-30
Abstract: 229,555. Josue, E., and Violini, L. June 30, 1924. Composition fuel.- Briquettes or fire-kindlers are made from a combustible mixture consisting of 50 parts by weight of charcoal, 50 parts of pit coal, 20 parts of potassium chlorate, 35 parts of gum arabic and 15 parts of pitch. The charcoal and coal are reduced to powder and mixed with a solution of potassium chlorate and gum arabic and the whole is mixed with the pitch in liquid condition. The resulting paste is dried and reduced to powder which is compressed into briquettes.
Patent GB-102936-A (GB)
Title: Improvements in or relating to Contact Breakers for Magnetos.
IPC: F02P7/063
Filed: 1916-11-04
Abstract: 102,936. Soc. Anon. Appareillage Electrique Grivolas. Dec. 27, 1915, [Convention date]. Magneto-electric machines. -- Comprises improvements in magneto-electric machines for ignition in internal-combustion engines. The cover r, Fig. 5, of the interrupter is secured to the casing by a circular helical spring t engaging with grooves in the cover and casing. A projection m<1> on the plate m, Figs. 2 and 3, carrying the interrupter supports a carbon brush n and the spring o for the interrupter. The Specification as open to inspection under Sect. 91 (3) (a) includes the following features : The pole-pieces c are connected to the end plate e by a joint d as shown in Fig. 2 (cancelled). The oil-box f for the distributor shaft g is cast on to or with the end plate. The brush-holder h is secured by screws to the frame of the machine. The ends of the screws are prolonged in the direction of the slip-ring j and form a safety spark-gap. The distributor k is secured to the end plate e by hooks l bent so that they may be extended. Ducts v, w lead the oil from the oil-box f to the bearing u and interrupter mechanism. The distributor shaft is held by a collar forming a spring This subjectmatter does not appear in the Specification as accepted.
Patent GB-577944-A (GB)
Title: Improvements in quartz envelopes through which pass electric conductors
IPC: H01J5/32
Filed: 1941-12-08
Abstract: 577,944. Sealing metal to ceramic material. GENERAL ELECTRIC CO., Ltd., FRANCIS, V. J., and KETTLEWELL, E. Dec. 8, 1941, No. 15812. [Class 36] [Also in Group XXIII] Relates to the method of sealing an electric conductor into a quartz vessel, as described in Specification 489,630, in which one or more strips of metal are first sealed between a core of quartz and a tube which is collapsed on to it. According to the present invention, an assembly prepared in this way is sealed into a quartz envelope 1, the arrangement being such that one end 11 of a tubular core 5 projects into the interior of the envelope the bore of the core is blocked by a barrier 10 at a point outside the wall of the envelope, and the inner ends 7 of the conductors emerge from the core at a point within the envelope. In making the seal, the core 5 is inserted in a tubular extension 2 of the envelope, and the outer end 3 of the extension is sealed to the core, the collapse being extended beyond the barrier 10. Specification 534,310 also is referred to.
Patent GB-1046782-A (GB)
Title: Sheet transport apparatus
IPC: G03B27/52
Filed: 1963-04-16
Abstract: 1,046,782. Feeding sheets. PLASTIC COATING CORPORATION. April 16, 1963 [April 24, 1962], No. 15896/65. Divided out of 1,046,781. Heading B6B. [Also in Division G2] A sheet transport apparatus has chain-driven grippers 39, 40 which are stopped in one position to receive a sheet while in open position, are permitted to close and are reopened in a second position remote from the first position, the chains being driven by an electric motor 45 driving the chains 31 through a reduction gear 47, the motor 45 and a brake 46 on the motor shaft being under an electric control for stopping the grippers in the first position. As applied to an electrophotographic copying apparatus (see Division G2) a copy sheet 86, held by a vacuum platen 41, as described in Specification 1,046,785, is received by the gripper 39 held in open position by rollers 73, Fig. 5 (not shown), engaging levers 74, thus overcoming the spring tension of the gripper. A solenoid 71 raises lever 68 to permit counterclockwise rotation of arms 72, thereby allowing gripper to close under spring tension at the instant the platen reaches its laterally displaced position. A limit switch 81, Fig. 3, actuated by a lug on one of the chains 31 energizes a relay, not shown, which stops the motor 45 by the application of the brake 46. Gripper 40 is opened to release a sheet by levers 74, Fig. 5 (not shown) engaging blocks 87, thus forcing the levers downwards. The grippers 39, 40 each have two metal jaws 121, 122, Fig. 6 (not shown) connected by a spring-loaded hinge, the jaws being coated on their outer sides with electrically insulating material. Insulating blocks 125 attached to leaf 121 are of fragile plastic which fractures under stress to avoid damage to other parts if e.g., a copy sheet jams. A sheet released by gripper 40 is fed by belts 18, Fig. 3, having interspaced rods 19 which when raised arrest the travel of the sheet to permit inspection. Guide plates 100 realign a sheet before it passes to a conveyer belt 106 and a U-shaped guide 113 which directs a sheet to rollers 114, 115 which deliver the sheet to a copy receiving tray 21.
Patent GB-674082-A (GB)
Title: Improvements in or relating to the underground gasification of coal
Inventor: WILLIAMS FRANK ARCHER
IPC: E21B43/243
Filed: 1949-06-15
Abstract: 674,082. Destructive distillation in situ. NATIONAL RESEARCH DEVELOPMENT CORPORATION. July 31, 1950 [June 15, 1949], No. 15989/49. Drawings to Specification. Class 55 (ii). In a system for the underground gasification of coal in which a stream of gasifying medium such as air, air mixed with oxygen, or a mixture of steam and oxygen is passed through a passage in the coal seam, means are provided close to the gasification zone to impart a swirling motion to the gasifying medium so that closer contact between the gasifying medium and the coal face is obtained. The means for imparting the swirling motion may comprise a housing situated at the entrance to the gasification zone and having a number of radially arranged vanes which are set at a suitable angle. In a modification the vanes may be rotated or a number of suitably designed nozzles may be used.
Patent GB-1224439-A (GB)
Title: Geometric instrument and improved adjusting means therefor
IPC: B43L9/22
Filed: 1969-03-27
Abstract: 1,224,439. Mathematical drawing appliances. GUNTHER PARTES K.G. 27 March, 1969 [3 April, 1968; 23 Nov., 1968], No. 16084/69. Heading B6P. The threaded adjustment spindle 5 extending between the two arms of a divider or compass is provided with a thread having a lead angle preferably 20 degrees, which is sufficient to prevent locking upon application of manual forces directly to the arms tending to move them together or apart. The spindle 5 and threaded sleeves 8 are made of an elastic plastics material such as an acrylic plastics.
Patent GB-515366-A (GB)
Title: Improvements relating to accessory apparatus for electric cable systems
IPC: H02G15/26
Filed: 1938-05-30
Abstract: 515,366. Fluid-pressure servomotor and electric automatic control systems. SIEMENS BROS. & CO., Ltd., WOOD. H. G., BROOME, J. H., and NEALE, A. A. May 30, 1938, No. 16087. [Class 135] [Also in Group XXXV] A pressure compensating device for oil-filled electric cable systems comprises a piston and a cylinder the relative positions of which are adjusted by poweroperated means following a change of pressure in the system. As applied to a cable with one or more oil-filled cores surrounded by a tube or sheath containing gas under pressure, the gas pressure acts through a pipe 20 on the upper side of a piston 5 the lower side of which is acted on by the oil pressure in a pipe 3. Branches 14, 22 from the pipes 3, 20 respectively are connected to a manometric switch device 15 the movable contact 16 of which engages a contact 17 or 18 according as the oil pressure exceeds the gas pressure or viceversa, and accordingly energizes a solenoid 23 or 24 and starts a motor driving a compressor 25. The latter supplies air under the control of a piston valve 28 operated by the solenoids to one side or the other of an auxiliary piston 32 coupled by a rod 33 to the main piston 5 so as to move the latter in a direction to compensate for the pressure change. The valve 28 is centralized by springs and in its neutral position the ends of the auxiliary cylinder 35 are open to the atmosphere through ports 31 so that the piston 5 is displaceable in its cylinder 4 under the influence of the pressure in the cable system alone if the current fails. The ends of the piston 5 are in separate cylinders to prevent leakage of gas into the oil or vice versa. In the modification Fig. 1. the oil pressure acts on a piston 5 loaded by weights 9 and having a stem 10 connected by screw mechanism with a worm wheel 12. The latter is operated by a worm 13 driven by a reversible electric motor 14 under the control of a two-way switch device 15 operated by changes in the oil pressure. The worm 13 may be replaced by a pinion but in any case the gearing is such as to engage only when the motor is driven. The screw mechanism is arranged to allow axial movement of the stem 10 if the current fails.
Patent GB-283413-A (GB)
Title: Improvements in or relating to supporting devices for overhead tracks
IPC: E05D15/06
Filed: 1927-06-16
Abstract: 283,413. Richards-Wilcox Canadian Co., Ltd., (Assignees of Hoffman, P. L.). Feb. 21, 1927, [Convention date]. Elevated railways.-Runway tracks, carried by a bracket extending over and partly beneath the track, are interlocked at the joint by a member 20 secured to the bracket. The bracket comprises an inner part 11 having offset tongues 19 engaging slots or notches in the outer part 14 which carries the yoke 20. This yoke has tongues 23 engaging slots in the rail sections 6, 7. In a modification, Fig. 5, tongues 29 on the rail sections engage the edges of the yoke.
Patent GB-513185-A (GB)
Title: Improvements in coating of fibrous surfaces
IPC: D21H19/34
Filed: 1938-05-30
Abstract: 513,185. Coating fibrous sheets. ROGERS, F. H. (Plastergon Wall Board-Co.)., May 30, 1938, No. 16109. Drawings to Specification. [Class 95] [Also in Group VIII] Fibrous sheets, e.g., wall board, are coated by applying to the material while in a moist state a water dispersion of coating material containing coating solids and a volatile solvent therefor, then immediately subjecting the coated sheet to a drying treatment in a humid atmosphere so as to remove sufficient of the solvent to bring the coating quickly past the tacky stage and then further drying. The material may be heated before application of the coating. Both faces may be coated by provision of a second unit. A matt surface is obtained which is suitable as a primer coat for a water paint. Water dispersions containing natural or synthetic resin, cellulose esters, termite and fungus resisting materials may be employed.
Patent GB-221873-A (GB)
Title: A new or improved piston for internal combustion engines
IPC: F02F3/00
Filed: 1923-06-21
Abstract: 221,873. Mond, A. L., (Chemische Fabrik Griesheim-Elektron). June 21, 1923. Pistons for internal-combustion engines are made of an alloy of from 98 to 99.8 per cent of magnesium and from 2 to 0.2 per cent of silicon hardened from 35 to 50 Brinell.