baber/WOPTO huggingface dataset:
Patent GB-1374365-A (GB)
Title: Nitrosourea derivatives
IPC: C07D223/12
Filed: 1972-06-15
Abstract: 1374365 Nitrosoureas YAMANOUCHI PHARMACEUTICAL CO Ltd 15 June 1972 [28 June 1971 27 April 1972] 28143/72 Heading C2C Novel nitrosoureas of the general formula wherein R is a hydrogen atom or nitroso group and n is 2-10, are prepared by nitrosation of an urea of the general formula Ureas of the second general formula above are prepared by reaction of an α-amino-#-lactam of an α,#-diaminoalkanoic acid of the general formula H 2 N(CH 2 ) n CH(NH 2 )COOH with #- chloroethyl isocyanate. Pharmaceutical compositions having antitumour activity comprise, as active ingredient, a nitrosourea of the first general formula above, together with a suitable carrier, and may be administered orally or parenterally.
Patent GB-284419-A (GB)
Title: Trolley for facilitating the transport of broken-down road vehicles
IPC: B60P3/12
Filed: 1926-11-09
Abstract: 284,419. Adams, G. T. Nov. 9, 1926. Trailer vehicles for towing broken down vehicles comprise runways A along which the carriers D are adapted to run by means of rollers E and screwed rods F. The carriers are adapted to engage the axle or other part of the broken down vehicle. A telescopic draught pole J is provided.
Patent GB-1182029-A (GB)
Title: Improvements in processes and apparatus for developing photographic films
Inventor: HOSTERT CARL HEINZ
IPC: G03D3/13
Filed: 1968-07-03
Abstract: 1,182,029. Endless conveyers. C. H. HOSTERT. 3 July, 1968 [10 July, 1967], No. 28234/68. Heading B8A. [Also in Divisions F2 and G2] A film strip is conveyed through a tank of developing solution by a chain arrangement which causes the film to be transversely corrugated. The tendency of the wet film to curl, and so come away from the gripping means along its edges, is thus prevented. As shown, the film 27 is carried through developing solution in a tank 5 by endless conveying chains 15, 16 which pass round sprockets 8-14. The chains are made of a flexible resilient material, the separate links being shaped and joined together as in Fig. 3 (not shown). Each link has a tongue 26 projecting laterally, the tongues all being on the inner side of the chains as shown in Fig. 2. Initially the film 27 passes between two sets of rollers 28, 29, which are mounted so that each roller can rotate about its own axis, and also each set 28, 29 can move round an endless closed path, as shown in Fig. 1. The rollers 28 which are adjacent to the rollers 29 have their peripheries overlapping, so that the film 27 passing between them is given a wave-like or corrugated configuration, as shown. Thus as the tongues 26 of the chain come into engagement with the edge of the film, the tongues engage alternately above and below the film because of its corrugated shape. The chains 15, 16 diverge away from the film while it is passing between rollers 28, 29, and converge to grip the film only as it is passing over sprockets 9 at the entrance to the tank. Similarly the chains diverge again after passing sprockets 14, so that the film is automatically released. The film can be so conveyed through several tanks in succession if required.
Patent GB-263761-A (GB)
Title: Improvements in or relating to balloon material
IPC: B64B1/58
Filed: 1926-11-10
Abstract: 263,761. B. G. Textilwerke Akt.-Ges., (Assignees of Strobl, H.). Dec. 30, 1925, [Convention date]. Goldbeaters' skin-Goldbeaters' skin or similar material made of animals' intestines for use with or without a fabric reinforcement as a balloon overing is treated in one or both surfaces with a water resistant protective layer of varnish, lacquer, oil or wax on which aluminium powder is spread while it is in a somewhat sticky condition. The aluminium powder prevents stickiness of the surface. According to the Specification as open to inspection under Sect. 91 (3) (a) of the Act, animal skins of unspecified nature also are coated in the manner described. This subject-matter does not appear in the Specification as accepted.
Patent GB-413531-A (GB)
Title: Improvements in or relating to the manufacture of moulded articles
IPC: B28B13/02
Filed: 1933-10-12
Abstract: Hollow articles of concrete or the like are moulded by charging the closed moulds with the liquid or semi-liquid material by compressed air or gas, then removing the core and subjecting the contents to the pressure of a stationary or rotating die.  The mass may be irrigated or dusted with pure cement before the die pressure is applied.
Patent GB-384741-A (GB)
Title: Improvements in evaporators for distilling or concentrating apparatus
IPC: B01D1/12
Filed: 1931-10-12
Abstract: In separate heater and evaporator apparatus comprising an evaporator m and a steam-heated tubular heater a inclined thereto, the tubes d, Fig. 1, are arranged in staggered relation to afford a clear path for condensate to fall on baffles e, provided with perforations f through <PICT:0384741/III/1> <PICT:0384741/III/2> which the condensate falls on to a tube g and thus heats the liquid flowing therethrough from the evaporator m.  The dilute liquor if cold is introduced by an injector n or an impeller into the tube g but if hot is injected directly into the tubes d.  A separator q prevents removal of entrained drops with the vapours through the tube r<1>.  Several units may be connected in multiple effect.
Patent GB-1014283-A (GB)
Title: Automatic exposure control apparatus
IPC: G03B7/12
Filed: 1962-05-10
Abstract: 1,014,283. Photographic cameras. EASTMAN KODAK CO. May 10, 1962 [May 11, 1961], No. 28301/65. Divided out of 1,014,281. Heading G2A. The subject-matter of this Specification is identical with that described in Specification 1,014,281, but the claims relate to coupling of a lens diaphragm adjusting member and a shutter speed setting member to a sensing member cooperating with an output member of a photo-electric exposure device. The coupling is through differential means.
Patent GB-370836-A (GB)
Title: Improvements in friction ratchet clutches, gears and detents
IPC: C04B14/10
Filed: 1931-10-12
Abstract: 370,836. Friction ratchet clutches. AKTIEBOLAGET VOLVO, Gothenburg, Sweden. Oct. 12, 1931, No. 28322. Convention date, Oct. 13, 1930. [Classes 80 (ii) and 80 (iii).] The coil of a coil clutch or detent is arranged to press resiliently against the member to which it is connected with a pressure which is greatest near the point of connection and diminishes regularly towards the free end or ends, in order that, in action, the winding and unwinding may take place progressively from the end of the coil without undue slip. A coil 2, Fig. 1, formed from a steel &c. band of rectangular or round section is secured at one end 4 to a driving or driven member 3, against which it bears when idle with a pressure decreasing towards the free end, the last turn or turns being reduced to grip the driven or driving shaft 1. The coil may be secured to the inner member and be adapted to grip the outer. The effect may be produced by forcing the coil under stress into or over the member, either the band being of decreasing thickness towards the free end, as shown, or the coil having a conical form in the free state. A coil 9, Fig. 7, may be secured at its mid-point to an outer member 10, its free ends being engageable alternatively with coned surfaces 14, 15 on a control sleeve 12 splined to the inner member 11, to provide a reversible drive. In the midposition of the sleeve, both halves of the coil are free. To avoid axial reaction on the sleeve, it may be moved far enough to bring a cylindrical part into contact with the coil. In a modification, the coil is secured to the part 11 and the sleeve splined to slide in the outer part 10. Fig. 11 shows a variable-speed drive incorporating a pair of such reversible clutches. An electromotor-driven shaft 17 carries a compound eccentric 19, 30, the throw of which can be altered by the engagement of a cotter 31 in various keyways 32. Eccentric straps 21, 24 are connected to lugs 22, 25 respectively on the outer members of the two reversible clutches, which function alternately on the up and down strokes of the lugs and are provided with a common coned control sleeve 28 splined to the driven shaft 27. A number of sets may be used to secure uniform rotation. By forming one cone 40, Fig. 9, on an independent sleeve slidable on the sleeve 12 by a lever 42 mounted on the main operating-lever 43, the reversible clutch may additionally be rendered bidirectional, this modification being applicable also to the form in which the coil is secured to the shaft. In order to obviate reduction of the constant grip of the free end on the shaft or outer member due to axial jolting, the coil may be axially compressed by a nut. Instead of gripping directly on the shaft or outer member, the free end may bear on a positivelyrotated or fixed sleeve, or alternatively or additionally may be actuated by a shoe &c. attached to the coil. The invention is applicable in all its forms as a reversible or other one-way clutch between two shafts or as a brake between, say, a shaft and a fixed machine frame.
Patent GB-886804-A (GB)
Title: Improved oil composition having low pour point
IPC: C10L1/14
Filed: 1960-08-16
Abstract: A low cold-test composition comprises a virgin gas-oil fraction and a low cold-test fraction plus a small amount of a copolymer of ethylene and an olefinically unsaturated aliphatic monomer having three to five carbon atoms per molecule, the copolymer having a molecular weight in the range 1,000 to 3,000 and containing 1% to 40% by weight of the aliphatic monomer.  Suitable monometers include vinyl acetate, vinyl propionate, methyl methacrylate, allyl ethyl ether, divinyl ether, acrylonitrile, and vinylacetonitrile.  The preferred monomer is vinyl acetate.  The amount of copolymer may be from 0,001% to 0,5% by weight.  The gas oil is preferably non-naphthenic and the low cold-test faction, naphthenic.  The composition may be added to natural gas to lubricate valves &c. in the pipe line.ALSO:Ethylene is co-polymerized with vinyl acetate, vinyl propionate, methyl methacrylate, allyl ethyl ether, divinyl ether, acrylonitrile or vinylacetonitrile, to form a copolymer of molecular weight 1000 to 3000 (Rast method).  From 1 to 40% by weight of the co-monomers may be employed.  A high molecular weight copolymer may be made and a lower molecular weight fraction extracted by solvents, or the high molecular weight polymer may be thermally degraded.  An example is given of copolymerizing ethylene and vinyl acetate using di-tert-butyl peroxide as initiator, at 700 to 2,000 lb./sq. in. and 280 DEG  to 340 DEG  F.
Patent GB-431824-A (GB)
Title: Improvements in cooling field magnet rotors of turbo-generators
IPC: H02K1/26
Filed: 1934-10-04
Abstract: 431,824. Cooling dynamos. PUNGA, F., Technische Hochschule, Darmstadt, Germany. Oct. 4, 1934, Nos. 28475 and 28476. Convention dates, Oct. 5, 1933 and March 17, 1934. [Class 35] Coils and conductors.-For cooling the field magnet rotors of turbo-generators, a free space 3 in each slot communicates with the air-gap by passages cut in the slot wedges or in the teeth, some of these passages 5 being shaped so as to force air into the slots and the remaining ones 10, Fig. 2, so as to exhaust air from the slots into the air gap. As shown, two coils 1, 2 are situated in a tapering slot leaving a tapering space in the centre. The slot wedges, usually of nonmagnetic steel rest on plates 6 formed with holes 7 for the passage of cooling air. Distance pieces of hard paper, micanite or insulated aluminium may be placed in the slots to wedge the coils in position and these may be held by projection engaging the holes 7 in the plates 6. The bottoms of the slots are rounded and the coil supporting pieces 11 are apertured to admit air from the bottom portions into the slot spaces 3. Unwound cooling slots may also be provided with wedges having cooling passages inclined in both directions. These wedges are of magnetic or nonmagnetic material, and if of copper, they may form part of a damping winding. The inner surfaces of these slots may be serrated. The wedges, or more especially those parts having inlet passages 5 may project beyond the surface of the rotor and the passages may be formed partly in the rotor teeth. At the rotor ends, a distance piece with inlet openings may be provided, the wedges near the ends having exhausting passages 10 only. The invention is applicable in constructions where the rotor is provided with separate teeth held in dovetail slots as described in Specification 7384/03, [Class 35]. In this case, a single coil is held between two teeth and spaced therefrom. The coils 1, 2 may have a tapering cross-section leaving a rectangular or tapering central space 3. The cross-section of the end windings is preferably rectangular and may be greater than that of the slot portions if aluminium be used as the winding material. Coils formed as described in Specification 363,102 are preferably employed.
Patent GB-379548-A (GB)
Title: Improvements relating to life guards for motor vehicles
IPC: B60R21/34
Filed: 1931-10-14
Abstract: 379,548. Motor vehicle life-guards. NATHAN, M., 34, Abbotsford Place, and WHITE, W. M., 55, Queen Street, both in Glasgow. Oct. 14, 1931, No. 28518. [Class 103 (ii).] Relates to forward life-guards for motor vehicles in which an elevated roller in one or more parts is driven by gearing in a direction opposite to the road wheels, the roller being arranged to drop automatically on meeting an obstruction. When either an upper roller A or a lower roller B strikes an obstruction, the lower roller is moved into gear. The roller B is carried on a pair of arms C each pivoted at J to a lever D pivoted to a fixed bracket E having an inclined slot G engaged by a pin H on the arm C. When the roller is struck, the arm C moves rearwardly and the pin H slides down the slot G thus lowering the roller which is then rotated by engagement of the gear wheels P, I. The roller N is driven through flexible shafting K and bevel gearing LN. The upper roller A is provided for large obstructions and is supported on arms P<1> each having an arm R engaging a bell crank S bearing against the corresponding arm D so that when the roller A is struck the device functions as previously described. The rollers may be covered with rubber or other substance.
Patent GB-1140869-A (GB)
Title: Steroid spiro-diazirines and diaziridines
Inventor: BORREVANG POUL
IPC: C07J43/00
Filed: 1965-07-06
Abstract: 1,140,869. 3-Spiro-azirine- and aziridinesteroids. NOVO TERAPEUTISK LABORATORIUM A.S. 4 July, 1966 [6 July, 1965], No. 28549/65. Heading C2U. The invention comprises compounds of formula where Y is one of the groups in which each of R 1  and R 2  is a hydrogen atom or an alkyl, cycloalkyl, hydroxyalkyl, aralkyl, aryl or haloaryl group, R 3 , when present, is a hydrogen atom or a methyl group, R 4  is (a) a group -C#CR 5 , wherein R 5  is a hydrogen or halogen atom or a C 1-3  alkyl, haloalkyl, trihaloalkyl, alkenyl or alkynyl group; (b) -CR=CH 2  or a group -CHR 8 -CR9<SP> </SP>= CH 2 , wherein R 8  and R 9  are hydrogen atoms or methyl groups; or (c) when a 5(10)double bond is present, a hydrogen atom or a methyl or ethyl group, and R 6  is a hydrogen atom or a group -COR 7  in which R 7  is a hydrogen atom or an alkyl, aralkyl or aryl group, acid addition salts of the diaziridines of the invention, and their preparation by reaction of a compound of the first formula above, wherein Z is a carbonyl, imino or substituted imino group with a compound of formula NH 2 R or R<SP>1</SP>NHR wherein R is halogen atom or a group -OSO 2 OH and R<SP>1</SP> has one of the values specified for R 1  and R 2 , other than hydrogen, in the presence of ammonia, an amine or another base, followed if desired by (a) oxidation of a diaziridine group to a diazirine group; or (b) conversion of a diazirine group by a Grignard reagent to a mono-substituted diaziridine group. The compounds of the invention have gestagenic and central nervous system stimulating activity.
Patent GB-666498-A (GB)
Title: Improvements in focussing devices for photographic cameras
IPC: G03B13/24
Filed: 1948-11-03
Abstract: 666,498. Focusing devices. DODIN, L. J. E. A. Nov. 3, 1948, No. 28603/48. Class 98 (i). Thefocusing device of a photographic camera comprises a diffusing surface extending over the field of view sighted through the camera and a group of prismatic elements, said elements being assembled to form two identical symmetrical wedge prisms with a wedge angle of not more than 20 degrees superimposed inend for end inverted relationship and with said ground surface located within the prism assembly and in a plane bisecting the wedge angle of both wedge prisms. As shown, the device comprises superimposed wedge prisms 1, 2, the contacting faces of which lie in a horizontal plane passing through the optical axis 0<SP>1</SP>-O<SP>2</SP> of a field lens (not shown). Each prism is made up of two similar prism elements 1a, 1b and 2a, 2b and the surfaces of prism elements 1b, 2b may be ground to provide the diffusing screen in a plane normal to the optical axis. The prism elements of each prism may be held together without the interposition of any adhesive or may be caused to adhere by the interposition of a material having a refractive index different from that of the prisms. Such a material may be fish glue or gelatine. The central part of the diffusing surface may be more finely ground than the remaining area thereof.
Patent GB-617297-A (GB)
Title: Improvements in or relating to time base circuits for cathode ray oscillographs
IPC: H03K4/86
Filed: 1946-09-25
Abstract: 617,297. Time bases for cathode-ray oscillographs. STANDARD TELEPHONES & CABLES, Ltd., and HILL, S. S. Sept. 25, 1946, No. 28626. [Class 37] [Also in Group XL (c)] A time-base generator for a cathode-ray oscillograph may be switched to provide recurrent deflecting strokes in one direction or a single deflecting stroke in the reverse direction. As shown, a gas-filled triode 8 and condenser 1 provide the usual saw-tooth waveform, uniform deflection of the cathode-ray being obtained at terminals 13 and 3 during the charging of the condenser. Synchronizing pulses may be applied to the pre-amplifier 18. When linked switches 6 and 7 are moved to their lower position however valve 8 is given a maximum negative bias and the grid of a gasfilled relay 25 is joined to the anode load 21 of the pre-amplifier 18. A negative pulse is now applied to the grid of valve 18 by connecting it in this case to the negative grid bias terminal 27 and the resulting positive pulse in the anode circuit is applied to the grid of the gas-filled relay 25 which fires, placing a virtual short-circuit across the lines. As a result of the volt drop in a lamp 5, condenser 1 now discharges through its series resistance 2, causing uniform deflection of the cathode-ray in the reverse direction to the recurrent time base. Valve 18 is also short-circuited and a slow relay 22 opens contacts 23 in series with gas-filled relay 25 causing firing to cease. Since valves 8 and 25 do not act simultaneously one valve may be made to perform the functions of both, Fig. 2 (not shown). In modifications mentioned, switch 7 might be dispensed with and potentiometer 11 moved by hand instead, contacts 23 might be in the anode circuit of valve 25, relay 22 could be placed in a separate circuit across the supply, condenser charging resistance 2 could be replaced by a thermionic valve and output resistors 14 and 15 by a valve arranged as a cathode follower. The negative voltage pulse generated in the lamp 5 may be taken from terminal 28 and used to release the cathode-ray.
Patent GB-321522-A (GB)
Title: Improvements in and relating to fittings for electric lighting and the like systems
IPC: F21V21/02
Filed: 1928-10-05
Abstract: 321,522. Smith. P. A., Faber, O., and Drake & Gorham, Ltd. Oct. 5, 1928. Two-part couplings.-A btyonet-plug socket 9, a lamp holder, or other coupling is connected to a ceiling or wall box 5 by a tubular member 1 passing through the cover 4 of the box and secured thereto by locking nuts 7, the socket 9 being secured by a ring 12 to the member 1. The main leads pass from the conduit 14 to the terminals on the insulating block 10 that carries the usual plungers 11 of the bayonet, socket, the upper edge 15 of the member 1 being rounded to prevent damage of the leads. A shade ring 16 may secure an inverted shield surrounding the coupling and forming a support for a pendent bowl &c. The ring 12 may be elongated to enclose a, spring and support a tube or down-rod carrying lamps so as to allow limited universal motion of the tube.
Patent GB-290399-A (GB)
Title: Improvements in catalysts for the catalytic production of methanol and other oxygenated organic compounds from oxides of carbon and hydrogen
IPC: B01J23/26
Filed: 1926-11-15
Abstract: 290,399. Synthetic Ammonia & Nitrates, Ltd., and Franklin, R. G. Nov. 15, 1926. Methyl and higher alcohols; oxygenated organic compounds; catalytic agents, preparation of.-Catalysts for the production of methanol and other oxygenated organic compounds from carbon monoxide and hydrogen are prepared by heating a mixture comprising zinc carbonate or basic zinc carbonate and a chromium compound, which may be zinc chromate or basic zinc chromate. When zinc chromates are employed, the heating takes place in the presence of hydrogen or the reacting gases. The preferred catalyst has a zinc-chromium ratio of 9: 1. Examples are given of the preparation of catalysts by (1) boiling zinc sulphate solution with sodium carbonate, digesting the washed precipitate of basic zinc carbonate with chromic acid, and the product then filtered, dried and granulated; a carrier such as pumice or asbestos may be present; (2) heating an aqueous solution of zinc sulphate with sodium carbonate and sodium bichromate, washing and drying the precipitate; a soluble chromate may replace the bichromate. In either case, if the catalyst is allowed to retain some alkali salt, it is useful for the synthesis of higher alcohols and other oxygenated organic compounds. Specifications 227,147 and 275,345 are referred to.
Patent GB-840315-A (GB)
Title: A device for removing tyres from wheels
IPC: B60C25/02
Filed: 1957-09-20
Abstract: 840,315. Tyre removers. MORLE, C. W. (Automotive Equipment Manufacturing Co.). Sept. 20, 1957 [Sept. 20, 1956], No. 28765/56. Class 144 (1). A tyre remover comprises a pneumatic cylinder 11 having closed ends 13, 14 and housing a piston 21 the rod 20 of which projects through one end 14 to abut a wheel rim, the said end 14 of the cylinder having a pair of spaced parallel fingers 27 projecting therefrom with their free ends 30 bent at right angles to engage the inside of a tyre bead 32 so that on displacement of the piston 21 in the cylinder 11, on admission of pressure air through the cylinder end 13, the tyre bead 32 is pulled over the associated wheel rim flange 33 by the finger ends 30. As shown, the fingers are welded to the cylinder wall 12 at less than 180 degrees spacing and each has a flat end portion 29 terminating in the end 30. The piston 21 is urged by a spring 24 towards the end 13 of the cylinder where a pressure air inlet control valve 15 is fitted, and a manipulating handle 25 is provided. In use the finger ends 30 are first inserted underneath the bead 32 as shown in broken lines in Fig. 1 and the cylinder is then swung to the full line position to lever the bead ready for pulling over the flange 33.