baber/WOPTO huggingface dataset:
Patent GB-1063040-A (GB)
Title: Process for preparing a copolymer
IPC: C08F210/00
Filed: 1964-06-02
Abstract: Copolymers of propylene and a vinyl butyl ether, for example a block copolymer, are made by either copolymerizing a mixture of the monomers, or sequentially polymerizing the monomers, in the presence of a catalyst comprising a halide of titanium and an alkyl aluminium compound.  Propylene may be admixed with other alpha-olefines, and also vinylcyclohexane, or styrene.  The copolymers are made using conventional Ziegler-Natta techniques. In the polymerization system, molecular weight modifiers such as hydrogen, dialkyl zinc or cadmium, or alkyl halides may be incorporated. The copolymers alone, or in admixture with other synthetic polymers, are used to produce fibres and films.
Patent GB-1019567-A (GB)
Title: Insoluble polymers of n-vinyl imides and methods of making same
IPC: C07D207/404
Filed: 1964-06-02
Abstract: Insoluble polyvinyl imides are produced by heating an N-vinyl imide of formula <FORM:1019567/C3/1> where R1 and R2 are hydrogen or alkyl groups, n is an integer from 1 to 4, at an elevated temperature in the presence of a catalytic amount of a catalyst selected from (a) M and (b) Mx, where M is an alkali or alkaline earth metal and X is oxygen, hydroxy or an alkoxy radical containing up to four carbon atoms. In the example N-vinyl succinimide is polymerized using sodium hydroxide.
Patent GB-798965-A (GB)
Title: Improvements in or relating to systems and apparatus for heating and/or cooling an enclosure
IPC: F24F5/00
Filed: 1955-08-09
Abstract: 798,965. Ventilation apparatus. CARRIER ENGINEERING CO., Ltd. Aug. 9, 1955 [Jan. 14, 1955], No. 22974/55. Class 137 [Also in Group XIII] Apparatus for supplying air to an enclosure comprises a cooling coil located in the path of the air and damper control means operable either to direct air over the coil or to prevent the flow of air over the coil. An apparatus is shown in which the air may either be heated or cooled before passing to the distributing ducts 15. The heating means comprises a combustion unit 13 over which air is forced by a blower and thereby heated. In the air duct above the heating unit is arranged air cooling means comprising the evaporator coil of a refrigerating system, the condenser arid compressor; of which are mounted outside the enclosure on a concrete base and in a weather-proof housing 19. Dampers 60 are  associated with the cooling coil such that in one position, when the heating unit is operative, the heated air does not flow over the evaporator coil, and when cooled air is required, or wHen it is necessary to modify the temperature of the heated air the dampers are moved to position shown to direct the air over the evaporator coil for cooling before passing to the ducts 15. The dampers 60 which may be actuated manually or automatically, are located as shown .between the spaced coils of the evaporator unit, which is mounted in a casing 17 forming part of the duct through which air passes to distributing ducts 15.
Patent GB-1397337-A (GB)
Title: Arc welding or cutting device
IPC: B23K9/067
Filed: 1972-05-16
Abstract: 1397337 Ignition for arc welding systems D S O METALOLEENE 16 May 1972 23032/72 Heading H2H Are welding or cutting apparatus comprises means for initiating the arc and thereafter maintaining it, the means including a capacitor 2 in series with a resistor 1 and the primary winding 4 of a step up transformer 3, the capacitor 2 charging from a D.C. supply B until it acquires a potential sufficient to cause breakdown of a semi-conductor threshold device 6 whereupon the capacitor 2 discharges through the winding 4 which induces a high voltage pulse across the arc 9 which is connected to the secondary winding 5 of the transformer, a capacitor 7 across the winding 5 being provided to steepen the leading edge of the pulse. A circuit of the kind is said to minimize radio interference. The turns ratio of the transformer 3 may be variable.
Patent GB-231093-A (GB)
Abstract: 231,093. Rosenthal, L., and Messlang, O. Oct. 17, 1924. Multiplying and dividing apparatus; zeroizing mechanism.-In a camdisc machine interlocking mechanism between the operating shaft a carrying the pin wheels and the coaxial zeroizing shafts 16, 17 of the totalizing and revolutions counters comprises a locking lever 2, 3 pivoted at 1<1> to the machine frame, one end of the lever having a nose 4 which coacts with a notched disc 7 rigid on the shaft a and the other end of this lever being forked at 3<a>, 3<b> and 8 and supporting a rail 9 adapted to raise a spring-pressed pin 10 carried on the laterally movable totalizing-counter carriage 12 into engagement with notches 24, 25 in the adjacent ends of the shafts 16, 17 in order to lock the latter in zero position. Either of these shafts 16, 17 may be zeroized independently by withdrawing the handle 18 or 19 axially so that the lug 20 or 21 comes out of the locking plate 22 or 23 and pick-up lugs 41, Fig. 4, come into the plane of rotation of lugs 44 on the numeral wheels 42. The setting mechanism engaging shaft 35 is rotated on depression of a key 37 on it so as to raise the setting rack bars into engagement with pins on the cam discs in the usual manner. At the same time a forked arm 38 on this shaft 35 engaging a pin 39 on the locking lever 2, 3 raises the arm 2 of this lever so that the lug 4 locks in the disc 7 if the crank handle is in zero position. At the same time the other iend 3 is lowered, and the end 26 of the pin 10 is withdrawn from the shafts 16, 17. Thus zeroizing of these shafts 16, 17 can only be performed by depression of the key 37 when the crank handle and therefore the disc 7 are in zero position. Conversely the crank handle and disc 7 can only be rotated when the notches 24, 25 in the adjacent ends of the shafts 16, 17 are both opposite the head 26 of the pin 10 so that the end 3 of the locking lever may be raised to lower the lug 4 out of the notched disc 7. When the shafts 16, 17 are both pulled apart axially for zeroizing the space between their adjacent ends is less than the width of the head 26 of the pin 10.
Patent GB-811172-A (GB)
Title: Improvements in or relating to electrical discharge lamp assemblies
IPC: H05B41/39
Filed: 1955-08-11
Abstract: 811,172. Supply systems for space discharge apparatus. ENGELHARD INDUSTRIES Inc. Aug. 11, 1955 [Aug. 11, 1954], No. 23201/55. Class 38 (4). In an electric discharge lamp assembly including a discharge lamp 4 and a battery 1 there is provided a device which extends the useful life of the battery and comprises serially connected between the lamp and battery a resistor 2 the coil 3a of a relay 3 having normally closed contacts 3b, 5 and a choke coil 6 the relay being an automatic circuit interrupter which by alternately breaking and making its contacts opens and closes a short-circuit across the resistor 2; the resistor has a value such as to limit, except initially when the battery is new, the lamp current to a value below a critical minimum, necessary to energize the relay, and the arrangement during normal running is such that when the current exceeds the critical minimum the relay opens its contacts to render the resistor effective whereupon the current falls below the minimum so that the relay drops out to short the resistor whereupon the current again rises above the minimum, this sequence continuously repeating to produce pulsating direct current in the lamp circuit so that the lamp gives light fluctuations which are not visible to a spectator. A lamp ignition circuit is provided and comprises a capacitor 11 which when a series starting switch 9 is closed discharges through the primary winding 8 of an R.F. transformer whose secondary winding 7 is serially connected in the lamp series circuit. The Specification describes circuit parameters. Specification 570,743, [Group XL], is referred to.
Patent GB-1165656-A (GB)
Title: Improvements in and relating to Instant Coffee.
IPC: A23F5/38
Filed: 1968-05-16
Abstract: 1,165,656. Instant coffee. PROCTER & GAMBLE CO. 16 May, 1968 [16 May, 1967], No. 23321/68. Heading A2B. Instant coffee compositions comprise flakes having a thickness of 0.002-0.010 inch and a density of 1.0-1.5 gms/cc. The flakes may be prepared by roll-milling instant coffee particles, which may have been aromatised with coffee oil. The flakes may be blended with conventional instant coffee particles.
Patent GB-730660-A (GB)
Title: Improvements relating to snap-action electric switches
Inventor: BUTCHER ERIC JAMES
IPC: H01H23/20
Filed: 1952-09-17
Abstract: 730,660. Snap-action switches. TELEPHONE MANUFACTURING CO., Ltd. Aug. 25, 1953 [Sept. 17, 1952], No. 23357/52. Class .38 (5). A switch has a dead-centre toggle formed by an extensible tension blade spring 4, clamped by a terminal 2 and carrying a contact 7, and a rigid member 11 pivoted to the spring 4. Member 11 has a pin 12 bearing in a recess 13 in a dolly 15 and has lugs 30 movable between fixed stops 31, 33. Anti-clockwise movement of the dolly from the position shown causes the spring 4 to snap over-centre and its contact 7 to engage a fixed contact 8. The spring 4 has a bowed portion 5 to make it extensible and the contact pressure may be increased by arranging a compression spring (not shown) in a recess in the dolly so as to bias the pin 12 outwards, as in Specification 698,821. As shown, the spring 4 is arranged on one side only of the dolly, but it may extend on both sides with a cross-piece carrying the contact 7. The latter arrangement may be replaced by a cross-member carried by two coiled tension springs. The arrangement shown may be duplicated by arranging a rigid member at each end of the dolly and by using a spring 4 on each side thereof, the springs extending in opposite directions. According to the Provisional Specification, the contact 7 may engage a contact in each of its positions.
Patent GB-239063-A (GB)
Title: Improvements in side screen attachments for the weather shields of motor vehicles
IPC: B60J1/14
Filed: 1924-10-03
Abstract: 239,063. Cornforth, C. V. Oct. 3, 1924. Windscreens.-In an adjustable support for the side-screens A of a motor or like vehicle of the kind comprising upper and lower fittings each consisting of a main screen clamp H pivotally connected to a sidescreen clamp E, the clamps E, H are connected by links C having pivot-pins c formed at each end, and vertical clamping-bars D are formed integrally with the arms of the upper and lower clamps associated with one of the screens, The links C may be cranked as shown in Fig. 3, so that one pivot-pin c is directed upwardly and the other downwardly as shown in Fig. 1. The two parts of the clamps E. H are drawn together by means of screws G so that the pivot-pins c and either the side-screen itself or the main screen standard B<1> are simultaneously gripped. A modified form of clamp, Fig 5, for gripping the standard B<1> and a pivot pin c consists of a hook-shaped member M having a recess m bearing against one face of the standard, an intermediate member N having a groove n on one side and a hall-beoring P on the other side, and a third member O also with a half-bearing P, the whole being tightened by a screw R.
Patent GB-168513-A (GB)
Title: Improvements relating to vaporisers for liquid gases
IPC: B23K37/00
Filed: 1920-08-11
Abstract: 168,513. Davis, R. H. Aug. 11, 1920. Re-vaporizing liquefied gases. -A vaporizer for delivering oxygen, nitrogen, &c. in gaseous form from containers in which the liquefied gas is stored comprises a boiler formed with tubular air passages by which the heating-surface is increased. Fig. 1 shows a vacuum-jacketed container A, the neck of which is surrounded by an annular .boiler D. A siphon tube C passes up the neck and continuing as a spiral enters the top of the boiler; an outlet tube E passes out from the other side through a plate J surmounting an openwork cage K which surrounds the neck. The outlet tube E is provided with a throttle valve ; a safety-valve is also provided on a tube F leading from the neck. Tubes D<1> pass through the boiler, which is provided with internal vertical baffles to prevent the liquid from passing through the boiler without being vaporized.
Patent GB-852224-A (GB)
Title: Improvements in or relating to mixing machines
Inventor: SHOOSMITH GUY TAITE
IPC: B01F15/00
Filed: 1958-07-22
Abstract: 852,224. Stuffing-box substitutes. OSBORNE ENGINEERS Ltd. July 22, 1959 [July 22, 1958], No. 23519/58. Class 122 (5). In a side entry mixer having a propeller shaft 10 passing through the side 12 of an oil storage tank and sealed by a mechanical or other seal 20, a sleeve 22 surrounds the shaft and is normally out of contact therewith but may be moved into sealing contact with the shaft or a part thereon to allow removal of the seal 20 without requiring the tank to be drained. The sleeve 20 has a conical inner surface 28 that opposes a corresponding surface on a boss 30 on the shaft. An electric motor drives the shaft 10 through gearing 16 and a coupling 34. When it is desired to remove the seal 20 the nuts on bolts 32 are removed and, after spacers 50 have been removed, nuts on studs 24 are tightened until the sleeve 22 bears tightly against the boss 30. The bearing assembly 52 is then removed and the seal moved along the shaft to abut the coupling 34, as in Fig. 3. The shaft is held axially by connecting holding bands 56 to the boss 30 and the coupling 34 is unfastened. A part 38 is then disconnected from the remainder of the casing 36 and moved axially on roller supports 44 to provide ready access to the seal.
Patent GB-586784-A (GB)
Title: Improvements relating to cycle frames
IPC: B62K21/02
Filed: 1944-11-25
Abstract: 586,784. Frames. NORMAN CYCLES, Ltd., and NORMAN, F. G. Nov. 25, 1944, No. 23525. [Class 136 (iii)] In a cycle frame fork or stay tube having one or more longitudinal ribs or depressions produced by depressing a wall, the ribs f, Figs. 1 and 3, or depressions c, d gradually diminish in width and depth. The depressions preferably converge to a point within the length of the tube, each rib or depression commencing and ending short of the tube. Modified sections of stay tube are shown in Figs. 6, 9, 11, and 13.
Patent GB-157039-A (GB)
Title: Improvements in or relating to arc lamps
IPC: H05B31/00
Filed: 1919-07-11
Abstract: 157,039. Jackson, P. R., (Sperry Gyro. scope Co.). July 11, 1919. Arc lamps.-In a flame-arc lamp for use in projectors, searchlights, or photographic picture work, an additional electrode or terminal 55 is arranged near the arc so that as the crater burns back the terminal receives sufficient current to cause the position of the positive electrode to be corrected, independently of the negative electrode. The main electrodes 4, 7 may be arranged at an obtuse angle. A constant arc current is maintained by means of a series electro-magnet 105, the armature of which is attached to an arm 110 moving between contacts 111, 112 in circuit with electromagnets 103, 102 which produce movements of the negative electrode 7 in opposite directions. Another series solenoid 126 strikes the arc.
Patent GB-258891-A (GB)
Title: Improvements in or relating to space current devices
IPC: H01J19/44
Filed: 1926-09-24
Abstract: 258,891. Metropolitan-Vickers Electrical Co., Ltd., (Assignees of Mouromtseff, I. E.). Sept. 26, 1925, [Convention date]. Void [Published under Sect. 91 of the Acts]. Vacuum tubes. - An electrode is supported upon an insulating sleeve surrounding and spaced from a re-entrant tube supporting another electrode. As shown, the cathode leads 5 are sealed through a press 4 on a re-entrant tube 3, and the grid leads 9 are secured to a band 8 mounted 'around a glass tube 7 which is sealed to the tube 4. The band 4 is mounted level with or above the press, and above the portion 13 where the lower side of the press is exposed to air, so as to prevent ionization at the point where the cathode leads pass out of the press. An anode 1 is sealed into the glass container 2.
Patent GB-1466674-A (GB)
Title: Artificial kidney machines
IPC: A61M1/16
Filed: 1974-05-29
Abstract: 1466674 Dialysate supply system DIALYSIS SYSTEMS Ltd 29 May 1974 [18 May 1973] 23741/73 Addition to 1368518 Heading B1X A dialysate supply system for an artificial kidney machine as claimed in any of Claims 4 to 7 of Specification 1368518 has switching means adapted when operated to change over the system from a dialysing cycle to a washing and/or sterilizing cycle, the switching means being operated or rendered operable by connecting the blood circuit of a dialyser to the connections of the supply system specified in the said Claims. In a preferred embodiment two microswitches are arranged to be operated when the blood inlet and outlet tubes are connected to the dialysate supply system; it is thus rendered impossible to supply dialysate to the blood chamber while it is still connected to a patient.
Patent GB-698990-A (GB)
Title: Improvements in collapsible boxes and like containers
IPC: A47B43/00
Filed: 1951-10-12
Abstract: 698,990. Collapsable boxes. MATTSSON, V. Oct. 12, 1951, No. 23817/51. Class 18 A collapsable box open at the top comprises a rigid rectangular frame 1 having side walls 2 hinged to the frame and to a base 4, and end walls 3 hinged to the frame so that they may be raised to a horizontal position level with the frame, permitting the collapsing of the side walls. When in a vertical position the end walls 3 engage stops 5 mounted on the base or on the walls 2. Each wall 2 may be divided into 2 parts and be hinged along the horizontal edge so formed.
Patent GB-927490-A (GB)
Title: Improvements in or relating to the manufacture of fibres of heat softenable materials
IPC: C03B37/04
Filed: 1959-07-10
Abstract: 927,490. Glass fibres. OWENS-CORNING FIBERGLAS CORPORATION. July 10, 1959 [July 11, 1958], No. 23843/59. Class 56. In the formation of glass fibres in which a stream of molten glass is flowed into a vertical portion of a walled passage having also an elbow portion for redirecting the material which is then distributed on the perforated wall of a spinning rotor, the stream of glass is prevented from touching the walls of the passage in the elbow by a cushion of gas. As shown, molten glass 20c is flowed from a furnace above into a vertical tube 210 having an elbow portion 212 leading to a horizontal portion 214 from which the glass is blown by compressed air through the tube 210 on to the perforated wall 120c of the rotor 116c mounted on a hollow shaft 118c surrounding tube 210. To prevent contact of the glass 20c with the elbow 212, a chamber 220 below the elbow and secured thereto is connected to a supply of compressed air and the part 228 of the elbow is formed of porous metal so that the air passes therethrough to form a cushion. To assist in propelling the glass 20c on to the rotor wall 120c, a second chamber 234 below chamber 220 has an outlet 232 below and adjacent the outlet 216 of tube part 214 and the chamber 234 is supplied with compressed air. The fine filaments 124c, projected outwardly by spinning of rotor 116c, are heated by an annular series of cup-shaped burners 182c and are attenuated to fine fibres by a blast of steam or air under pressure from an annular blower 188c. In a modified construction, Fig. 2, not shown, the compressed air chambers 220 and 234 are replaced by compressed air through a narrow tube parallel with tube 210 extending to the elbow 212 where the lower end is flattened to give a nozzle which extends through the upper part of the elbow on the outside of the bend so that the air forms a cushion under the molten glass 20c. The tube 210 may be cooled as by flowing water through a chamber 142 within the shaft 118c. Specification 794,302 is referred to.
Patent GB-1038824-A (GB)
Title: Cine-camera rotating device
IPC: G03B17/56
Filed: 1964-06-09
Abstract: 1,038,824. Stand heads. J. E. TILLY. June 9, 1964 [June 10, 1963], No. 23845/64. Heading A4H. A stand head device for supporting and rotating a movie camera has a casing 1 containing a gear wheel 4 driven through pinions 10, 11 and a shaft 9 by an electric motor 6, the gear wheel being fixed to the support legs of the stand so that the casing to which the camera is attached by a collar or stud 16 rotates.
Patent GB-1114107-A (GB)
Title: Novel sulphonamides and a process for the manufacture thereof
IPC: C07D239/69
Filed: 1966-05-27
Abstract: Novel N1 - [6 - methoxypyrimidinyl - (4)]-N1-(allyl or propyn-2-yl)-sulphanilamides and their pharmaceutically acceptable acid addition salts are prepared by either reacting alkali metal salts of N1 - (allyl and propyn - 2 - yl) - sulphanilamides with a 4,6-di(chloro, bromo or iodo)-pyrimidine and treating the resulting compounds with a methanolic alkali-metal methoxide, or reacting N1-[6-methoxy-pyrimidinyl - (4)] sulphanilamide with allyl and propyn-2-yl chloride, bromide or iodide and, if desired, converting the products into their pharmaceutically acceptable acid addition salts.  Therapeutic compositions with high antibacterial activity, which may take forms suitable for oral, parenteral or topical administration, comprise N1-[6-methoxypyrimidinyl-(4)]-N1 - (allyl or propyn - 2 - yl) - sulphanilamides and their pharmaceutically acceptable acid addition salts together with suitable carriers.
Patent GB-1428831-A (GB)
Title: Separation of aromatic carboxylic acids
IPC: C07C51/42
Filed: 1973-05-18
Abstract: 1428831 Separation of aromatic carboxylic acids TEIJIN Ltd 18 May 1973 [20 May 1972 31 May 1972] 23946/73 Heading C2C Benzene ortho - polycarboxylic acids are separated from an aromatic carboxylic acid mixture by a process comprising heating a liquid composition containing at most 20% by weight of water and at least the following four components: (a) at least one benzene orthopolycarboxylic acid (i.e. a compound containing at least one benzene ring bearing at least two carboxylic groups in ortho-position to each other), (b) at least one aromatic carboxylic acid which is not a benzene ortho-polycarboxylic acid; (c) at least one aliphatic monocarboxylic acid having 2-4 carbon atoms, and (d) at least one carboxylate of cobalt or manganese which is soluble in component(c) at a temperature of at least 90‹ C. to form a precipitate containing cobalt and/or manganese complexes of the acid(s) in component (a) and isolating the precipitate. Component (a) above may contain, for example, at least one of o-phthalic acid, trimellitic acid, hemimellitic acid, 3-methylphthalic acid and 4-methylphthalic acid, Component (b) may contain, for example, at least one of benzoic acid, a toluic acid, a dimethylbenzoic acid, isophthalic acid, terephthalic acid, a monomethylisophthalic acid, a monomethylterephthalic acid, trimesic acid, a naphthoic acid and a naphthalene dicarboxylin acid. The liquid composition used as starting material may be obtained by oxidation of at least one alkylbenzene or alkylnaphthalene. It may be obtained, for example, by oxidizing composition containing at least one of o-xylene, pseudocumene or a mono- or di-methylnaphthalene in component (c) as solvent and in the presence of a catalyst system containing at least one carboxylate of cobalt and/or manganese which is soluble in (c), or a cobalt and/or manganese compound which can form such a carboxylate under the reaction conditions, and separating from the oxidation reaction product the solid component containing solid aromatic carboxylic acids.