baber/WOPTO huggingface dataset:
Patent GB-569036-A (GB)
Title: Manufacture of 2-cyanobutadiene-1:3
Filed: 1940-03-18
Abstract: 2-Cyano-butadiene-1-3 is prepared by pyrolysis of an ester of a -vinyl lactic nitrile.  The reaction may be effected at 400-500 DEG C. and a diluent such as nitrogen or reduced pressure may be employed. p   a -Vinyl lactic nitrile is obtained by reacting hydrocyanic acid with vinyl-methyl ketone below 15 DEG  C. in the presence of alkaline condensing agents.  a -Vinyl lactic nitrile esters are made by treatment with an acylating agent such as acetic anhydride, acetyl chloride or ketene.  Synthetic rubber is produced by polymerization of 2-cyano-butadiene-1-3, for instance by exposure to ultra-violet light, or by emulsion polymerization.  A solvent-resistant product is produced by emulsion polymerization of a mixture of the cyanobutadiene with chloroprene in the presence of sulphur. Examples are given.  Specification 529,839 is referred to.
Patent GB-228024-A (GB)
Title: Improvements in means for casting curved printing plates
IPC: B41D3/00
Filed: 1924-02-27
Abstract: 228,024. Bezzant, R. Feb. 27, 1924. Stereotype, casting. A mould for casting thin stereotype plates for use on small rotary duplicating machines comprises a concave-portion C', Fig. 2, having flat faces B<1> and upstanding faces A<1> to receive corresponding projecting portions B, A, Fig. 1, on a convex portion C, and an independent frame E, Fig. 3, having straight side members and a curved end member adapted to be interposed between the parts C, C<1> to determine the thickness of the cast plate. The part C has a cut-away portion D for the entry of the metal and may have a groove to receive a thin metal band for securing a back sheet. The mould is mounted vertically on a stand to receive the cast and the metal runs into the mould in the direction of the lines of the type matter impressed in the matrix. Specifications 13789/04, 20527/08, 2380/15, and 109,425 are referred to.
Patent GB-112872-A (GB)
Title: Improved System of Ventilation.
Inventor: STEWART ALEXANDER WILLIAM
IPC: B63J2/02
Filed: 1917-04-11
Abstract: 112,872. Stewart, A. W. April 11. 1917. Forced ventilation. - In a system for use in ships &c., in which fresh air delivered by a fan is utilized to induce the discharge of foul air, an air inductor is employed consisting of a double truncated cone 4, in the constricted region of which is a nozzle 3 connected to the discharge side of a fan or the like 1, the intake side of which is open to the atmosphere.
Patent GB-942458-A (GB)
Title: Improvements in dryers particularly for poultry manure of the like
IPC: A01K31/04
Filed: 1960-02-13
Abstract: 942,458. Drying poultry manure &c. G. A. BILBY, and L. W. E. GILES. Feb. 13, 1961 [Feb. 13, 1960], No. 5203/60. Heading F4G. A rotary drying apparatus comprises an inner drum 4, Fig. 1, concentrically secured to a spaced outer casing 1 which is rotatably supported by rollers 2 fixed on shafts 8 driven by a motor 9. The drum 4 has at one end a feed hopper 11, the manure being fed into the drum by a screw conveyer 15, and at the other end an oil burner 26 projecting thereinto through apertures 30, 31 in the drums 1, 4 respectively, the exhaust gases from the drum being recirculated through an opening 27 at the feed end of the inner drum and thence through the passage 28 formed between the drums and the aperture 31 into the drum 4. The conveyer 15 is mounted within a casing 13 on a shaft 16 which is driven at one end by the drum 4 and is adapted to be slidably withdrawn from the casing through an end plate 18. A tray 32 is slidably mounted on a frame 33 for projection through the holes 30, 31 in the drums into the drum 4 above the burner to receive the dried material as it falls from the top of the drum, which drum is provided with horizontal lifters 20.
Patent GB-1253968-A (GB)
Title: An improved door closer device
Inventor: PERRY KENNETH JAMES
IPC: E05F3/10
Filed: 1968-02-01
Abstract: 1,253,968. Door closer device with fluid check passages. DOR-O-MATIC (G.B.) Ltd. 31 Jan., 1969 [1 Feb., 1968], No. 5204/68. Heading E2M. A door closer device for mounting on a door and comprising a piston 12 longitudinally slidable in a cylindrical bore 14 in a casing 10, wherein the piston is displaced axially against the force of springs 28, when the door is opened, by means of a pinion 22 on a shaft 20 connected by levers to the door frame and engaging a toothed axially-extending slot 26 in the piston 12, is characterised in that passages are provided in the casing for the flow of hydraulic fluid during the closing movement and ports 62, 64, 66 opening from the bore communicate with the passages, at least one passage communicating permanently with the slot 26, by means of a groove 80 formed in and extending along the bore 14. The groove 80 is preferably helical. The innermost and outermost ports 62, 66 are provided with restrictor valves which are adjustable to control the door closing rates in the usual way, and the innermost port 62 communicates with the slot 26 through the groove 80. A ball valve 60 is provided in the piston head 13 to allow free flow of fluid during the door opening movement, and an opening check is provided by a rod 34 with a tapered flat 38 which extends from the end of the bore 14 into a hole 30 in the piston head 15 and provides an increasing resistance to opening.
Patent GB-928755-A (GB)
Title: Improvements in or relating to switching control arrangements
IPC: H02H7/00
Filed: 1961-02-14
Abstract: 928,755. Protective arrangements. TELEFUNKEN G.m.b.H. Feb. 14, 1961 [Feb. 26, 1960], No. 5528/61. Class 38 (4). In an arrangement wherein a unit 1 is controlled by a contact 3 closing and shunting a battery resistance combination 2, 8 over long lines 4, 5, spurious voltages 9 sufficient to operate the unit are suppressed by a voltage 12, larger than the spurious voltage peaks, also connected across the line in series with a current limiting resistor 11, and a reverse biased rectifier 10. Other arrangements are disclosed where the battery 12 positive terminal is connected to the battery 2 negative terminal, alternatively the battery 2 can be connected in series with the lines. The arrangement may also be used where an A.C. voltage is superimposed on that of the battery 2.
Patent GB-1240934-A (GB)
Title: Magnetic holder
IPC: H01F7/02
Filed: 1969-01-31
Abstract: 1,240,934. Magnetic holding devices. INTERNATIONAL BUSINESS MACHINES CORP. 31 Jan., 1969 [26 Feb., 1968], No. 5549/69. Heading H1P. A magnetic work holder comprises a sheet incorporating magnetized strips such that when the working face is presented to a number of substantially identical, magnetizable elements in a disordered state, the elements are attracted to the surface to form substantially single-file chains lying over the strips. As shown, Fig. 1, a sheet 11 provided with longitudinally magnetized strips 22 at its upper surface is secured within a non-magnetic frame 12 and sandwiched between a non-magnetic base-plate 14 and a thin non-magnetic working surface 16. A handle (25) may be provided on the lower face of the base-plate. The device may be used to pick up and transport a plurality of small magnetic articles such as ferrite cores which align themselves along the magnetic strips 22. The sheet 11 may be of rubber with ferric oxide embedded in, or deposited on, the surface to form the magnetic strips 22.
Patent GB-766969-A (GB)
Title: Improvements in thermally responsive electric switches
Filed: 1955-02-24
Abstract: 766,969. Thermal switches. GENERAL ELECTRIC CO. Feb. 24, 1955 [Feb. 25, 1954], No. 5590/55. Class 38(5) A snap-action switch comprises a generally circular bimetal attached to a support and carrying a contact normally engaging a fixed contact, an adjustable screw in the support threaded into a switch casing for applying pressure to the support to alter the operating temperature. The support 8 has a terminal member 11 passing through a slot 12 in the casing 2 and has the bimetal 17 secured to it at a point 16. The fixed contact 26 is carried by a terminal member 21 passing through a slot 22 in the casing. A heating resistance 31 is connected between member 21 and a further terminal 27. The screw 37 can be adjusted to increase or decrease the bowing of support 8 and thus adjust the opening temperature. The resetting temperature is set by altering the position of a tag 38 on the support 8.
Patent GB-653644-A (GB)
Title: Improvements in or relating to the treatment of metal powders and the like
IPC: B22F1/10
Filed: 1948-07-25
Abstract: In a process for mixing and/or milling and uniformly distributing a comparatively small quantity of a substance throughout a finely divided material, the finely divided material, as described, a metal powder, is placed in a container, the substance which it is desired to distribute, as described a wax lubricant for the metal powder, is dissolved in a solvent and added thereto, and the container is subjected to a vibratory movement so that mixing and/or milling take place, the solvent being removed by heating and/or the application of a negative pressure before the termination of such vibratory and/or milling. In an example in which a process for mixing and milling is described, balls are used in the container.  The invention is stated to be specifically suited to the mixing and/or milling and lubricating of cemented carbide powder mixtures for subsequent processing into the final sintered state.
Patent GB-397523-A (GB)
Title: Improvements in fluid pressure braking arrangements for motors vehicles employing fluid taken from a combustion chamber of the motor
IPC: B60T17/00
Filed: 1932-02-25
Abstract: 397,523. Cylinders supplying air for operating brakes ; sparking-plugs. TENNANT, W. J., 111, Hatton Garden, London.- (Holmbergs Mek. Verkstads-Aktiebolag, C. ; 10, Bangatan, Lund, Sweden.) Feb. 25, 1932, No. 5680. [Classes 7 (ii) and 7 (iv).] Compressed fluid, tapped from the cylinders, passes to a reservoir, for braking purposes, through a filter in which both soot and moisture are removed. The fluid passes through ball valves 42 to the filter which comprises tapering chambers 47, 48 packed with metal wool ; annular corrugations 43a cause liquid to deposit which, with further liquid deposited in the chambers, drains to a sump 41 provided with a drain cock 52. The fluid passes by an annular space 49 and holes 51 to a pipe 5 leading to the reservoir. In an alternative filter the chambers are arranged vertically and the metal wool is replaced by wire which is coiled round . the walls. The compressed fluid may be tapped through a sparking-plug casing 2, Fig. 7, which has a passage 61, 62 leading to a ball valve 65, the lift of which is adjustable ; in a long-reach sparking plug, two passages 62 and ball valves 65 are formed in the annular casing of the plug. The apparatus for controlling the brakes is described in Specification 379,160, [Group XXXIV].
Patent GB-1187981-A (GB)
Title: Polyamides
Inventor: BURROWS HAROLD GEORGE
IPC: C08K5/5317
Filed: 1967-02-07
Abstract: 1,187,981. Polyamide manufacture. IMPERIAL CHEMICAL INDUSTRIES Ltd. 12 Jan., 1968 [7 Feb., 1967], No. 5843/67. Addition to 1,084,324. Heading C3R. Polyamides are manufactured by polymerizing a monoamino-monocarboxylic acid having at least 2 carbon atoms between the amino and carbonyl groups, a lactam thereof or substantially equimolar proportions of a diamine containing at least 2 carbon atoms between the amino groups and a dicarboxylic acid containing at least 2 carbon atoms between the carboxyl groups in the presence of 0À1 to 10 mole per cent of a salt of an organic diamine and a phosphonic acid of formula where R<SP>1</SP> is organic and n is 1 to 3 and 0À1 to 5À0 mole per cent of a sulphonamide of formula ArSO 2 NHR where Ar is phenyl, tolyl or naphthyl and R is a C 1-12 . Either diamine may be hexamethylene diamine and the acid may be adipic acid. The phosphonic acid may be phenyl phosphonic acid or cyclohexyl phosphonic acid and the sulphonamide may be N- methyl benzene sulphonamide, N-ethyl ptoluene sulphonamide, N-tert-butyl-naphthalene - 2 - sulphonamide, N - n - dodecyl benzene sulphonamide and N-u-butyl-p-toluene sulphonamide.
Patent GB-177946-A (GB)
Title: Improvements in machinery for crushing or grinding ore, rock, cement or the like
IPC: B02C1/14
Filed: 1921-02-21
Abstract: 177,946. Graham, W., and Honeywood, D. Feb. 21, 1921. Stamps, ore and like.-In fluid-operated crushing or grinding machines provided with rotating stamps, the stamps are rotated by mechanism comprising a depending spindle c, Fig. 2, engaging the hollow piston-rod b, Fig. 1, of the stamper a and fixed at its head to a worm-wheel g rotated by a worm h on a shaft i driven through gearing from the crank-shaft m of the compressor. In a modification, the spindle c is a continuation of the piston-rod b and slides through the top of the cylinder e, a shield being provided to keep out dirt and moisture. To prevent the operative fluid from being admitted in the cylinder e before sufficient pressure has been attained in the compressor, an adjustable spring-controlled valve t closes the port r which leads to the space above the piston. Specification 23497/07 is referred to.
Patent GB-902125-A (GB)
Title: Improvements in or relating to directional aerials
IPC: H01Q3/14
Filed: 1961-02-17
Abstract: 902,125. Directive aerial systems. COMPAGNIE GENERALE DE TELEGRAPHIE SANS FIL. Feb. 17, 1961 [Feb. 19, 1960], No. 5929/61. Class 40 (7). A directional aerial system comprises a number of coplanar transmission lines 1 radially arranged with respect to a central point O, each of the lines carrying and feeding a plurality of equi-spaced radiating elements 2. Co-operating with the transmission lines is a rotatable member having differing parts included in the lines to determine the propagation velocity therealong and thus to determine the directive pattern of the system. Rotating this member changes the directivity of the system. As described, the lines are three-plane strip lines and are formed by a circular outer conductive plate 10, a central disc 15 of insulating material on which are formed radial metallic strips 16 arranged as indicated by the lines 1 of Fig. 1 and a circular inner conductive plate 11. The strips 16 carry unipole radiating elements 20 extending through holes 17 in the outer plate 10. Energy is fed to the system by a coaxial line 12, the outer conductor 13 of which is attached to the centre of inner plate 11 and the inner conductor 14 to the central point to which the strips 16 converge on disc 15. The rotatable member 18 is also a disc and is formed in dielectric material, preferably material with a dielectric constant of approximately ten. It may have a similar number of sectors to the number of transmission lines with each sector of constant thickness and the sectors varying successively from a minimum to a maximum and back. The member 18 may conveniently be rotated by a wheel in contact with its periphery. Under certain circumstances the disc 18 requires to have a thickness constant along a radial line but varying continuously angularly round its axis. Equations are given relating the direction made by the radiation lobe axis to the design parameters of the system. It is stated that the flat compact aerial systems that can be produced are well suited for use on aircraft or engines. The rotatable part of the system, when mounted, can be arranged to be within the vehicle structure.
Patent GB-117066-A (GB)
Title: Improvements in and relating to Engine Pistons.
Inventor: JOHNSON CHARLES DUNCAN
IPC: F02B75/04
Filed: 1918-04-08
Abstract: 117,066. Johnson, C. D., and Johnson, P. C. June 20, 1917, [Convention date]. Pistons.-Relates to pistons for internal-combustion engines which are made in two parts relatively movable axialy to obtain an efficient scavenging effect, the two parts being separated by a spring which yields under the compression pressure employed. As shown in Fig. 1, such a. piston is made in two parts 2, 3, the part 3 being screwed at 7 to receive a ring 8 by which the spring is adjusted. The gudgeon pin 11 is carried by the part 3 which has vent holes 19, to facilitate free movement between the parts. Rotation between the parts is prevented by pins in the inner part moving in slots in the outer part. During the compression stroke, the spring is compressed, while during the scavenging stroke the spring expands so that the part 2 closely approaches the cylinder-end.
Patent GB-1243494-A (GB)
Title: Engine safety device responsive to abnormal oil pressure and coolant temperature conditions
IPC: F01M1/24
Filed: 1970-02-09
Abstract: 1,243,494. Regulating I.C. engines. SENTINEL DISTRIBUTORS Inc. Feb.9, 1970 [April 21, 1969], No.6071/70. Heading F1B.  A device for controlling fuel-flow in response to a lubricating system pressure comprises means, subject to the pressure, to maintain a valve 21, Fig. 3 open to permit fuel-flow between a fuel inlet (23) Fig. 1 (not shown) and a fuel outlet (25) as long as the pressure is above a desired value and a bypass 101 through which a limited amount of fuel may flow when valve 21 is closed. Fuel flows from a fuel pump via inlet port (23), chambers 19,24 and outlet port 25. Lubricant pressure e.g. the pressure in the engine circuit or in the circuit of an engine accessory such as a compressor, is admitted to chamber (14) to act on piston (32). The latter may be moved manually by a spring- returned cam device (43). The by-pass fuel-flow is regulated by screw 104.
Patent GB-1175592-A (GB)
Title: Improvements relating to Solid Electrolytic Capacitors
IPC: H01G9/15
Filed: 1967-02-08
Abstract: 1,175,592. Electrolytic capacitors. LIGNES TELEGRAPHIQUES ET TELEPHONIQUES. 8 Feb., 1967 [20 April, 1966], No. 6076/67. Heading H1M.  In the manufacture of a solid electrolytic capacitor having a low dissipation factor and good temperature characteristics, the semiconducting layer is formed by dipping the anodized porous tantalum or niobium anode into a solution containing manganese nitrate and another metal nitrate and pyrolysing to form a mixture of the corresponding oxides, the other metal being thorium or a metal of group 1A of the Periodic Table, particularly caesium, and the concentration of its nitrate being such that there is 1 to 2% by weight of the metal based on manganese. It is stated that the presence of the other metal possibly promotes the formation of #-manganese dioxide.
Patent GB-1416006-A (GB)
Title: Foamed polymer semiconductor composition and a method of producing thereof
IPC: C08J9/02
Filed: 1974-02-11
Abstract: 1416006 Foamed epoxy resin compositions GRUZINSKY NAUCHNO-ISSLEDOVATELSKY INSTITUT ENERGETIKI I GIDROTEKHNICHESKIKH SOORUZHENY 11 Feb 1974 06087/74 Heading C3C A foamed semi-conductor composition comprises, in parts by weight, 100 of epoxy resin, 10-60 of electrically conductive carbon black or graphite, 0À1-50 of polyethylhydrogensiloxane, 10-25 of polyethylenepolyamine (which acts as hardener for the resin and as foaming agent by reaction with the siloxane) and 0-50 of an organic solvent for the resin. The foam is made by mixing the epoxy resin or its solution in an organic solvent (e.g. acetone) with the carbon black or graphite and introducing the siloxane and then the amine into the mixture thereby producing foaming and hardening of the mixture.
Patent GB-195991-A (GB)
Title: Improved apparatus for launching aerial projectiles or the like
IPC: F41B3/00
Filed: 1918-04-10
Abstract: 195,991. Low, A. M. April 10, 1918. Ordnance, mechanical. - An apparatus for launching projectiles comprises an inclined track up which a carriage supporting the projectile is propelled. The apparatus may be portable or fixed. Fig. 1 shows a tubular track a connected to a motor chassis c and supported on struts b. A carriage f is hauled rapidly up the track by a cable e connected to a heavv drum d which is driven by gearing h connected to a pneumatic cylinder l by a cord wound around a drum i. The cylinder is supplied from a reservoir m which is charged by a compressor n driven from the motor engine. At the end of the track, the carriage is arrested by spring pressed shoes o which frictionally engage a duplex portion c<1> on the track. The pneumatic means may act directly upon the carriage instead of through the heavy drum d.
Patent GB-1040731-A (GB)
Title: Improvements in or relating to pharmaceutical aerosol compositions
IPC: A61K9/00
Filed: 1964-02-14
Abstract: Aerosol compositions comprise a solution of at least one salt of a therapeutically active amine having a pKa value of at least 7.8 with a C4- 18 saturated, unsaturated or hydroxy-substituted monocarboxylic acid.  An extensive list of amines having therapeutic value is given including examples of ethanol-amine, ethylene diamine and ephedrine derivatives.  The compositions may include a finely-divided therapeutic solid examples of which include r-epinephrine hydrochloride, proteolytic enzyme concentrate, penicillin G procaine, talc and isoproterenol sulphate.  Propellants specified are isobutane, isobutane/propane, ethyl chloride and various "Freons" (Registered Trade Mark) and mixtures thereof.ALSO:The invention comprises the oleate, laurate, myristate and stearate of chlorpheniramine, which are prepared by direct action of the free acid on the free base.ALSO:Pharmaceutical aerosol compositions comprise a solution in a liquid aerosol propellant of at least one salt of a therapeutically active amine having a pKa valve of at least 7.8 with a saturated, unsaturated or hydroxy-substituted C4-18 monocarboxylic acid.  A large number of antihistaminic and adrenergic amines are specified including ethanolamine derivatives of the structure:  <FORM:1040731/A5-A6/1> in which R1 is an aromatic radical and R2 + R3 are alkyl (e.g. diphenhydramine, doxylamine, carbinoxamine, &c.); ethylene diamine derivatives of the structure: <FORM:1040731/A5-A6/2> where R1 is an aromatic ring and R2 is an aliphatic, cycloaliphatic or aromatic group (e.g. methaphenilene, pyrilamine, tripelennamine, thonzylamine, &c.); pheniramine, chlorpheniramine, and other propylamine derivatives; ephedrine and its derivatives and other amines e.g. cyclizine, meclizine, clemizole and phenindamine, &c.  A solid therapeutic material may also be present, e.g. r-epinephrine hydrochloride, proteolytic enzyme concentrate, penicillin G procaine, talc and isoproterenol sulphate.