baber/WOPTO huggingface dataset:
Patent GB-795907-A (GB)
Title: A shutter device for cinematographic projectors
IPC: G03B9/10
Filed: 1956-04-26
Abstract: 795,907. Kinematograph apparatus. ETABLISSEMENTS EMEL. April 26, 1956 [April 28, 1955], No. 12823/56. Class 97(1) A projector shutter is formed integrally with the cams which provide the feed and disengaging movements of the claw. In the form shown the metal shutter disc 1 is combined with a moulded plastic member which carries the cam 4 which produces the feed movements and a face cam track 6, having its centre on the axis of rotation, which produces the disengaging movements. The plastic material is moulded through holes 13', 13<SP>2</SP> and also forms a pulley 8. The whole has a central bore 12 for the spindle and is secured thereon by a screw and washer accommodated in the recess shown in the face of the pulley. The plastic material is preferably superpolyamide.
Patent GB-231041-A (GB)
Title: Improvements relating to gaiters or covers for the springs of motor or other vehicles
IPC: F16F1/24
Filed: 1924-05-27
Abstract: 231,041. Platt, A. E. May 27, 1924. Gaiters. - The longitudinal edges of a suspension spring gaiter are secured together by means of metallic loops on one edge projecting through slots in the other edge, each loop being looked by means of a separate strap laced through it. A flap 6 secured to one edge of the gaiter is provided with a number of metallic loops 7 adapted to pass through slots 8 cut in the other edge 4 in such a way as to leave tongues 10 to close the part covered by the loop. Straps 9 secured to the gaiter are then passed through the loops to prevent their withdrawal.
Patent GB-866815-A (GB)
Title: Piperazine salts
IPC: A61K31/00
Filed: 1958-04-24
Abstract: The invention comprises the 1,11-methylenebis-(2-hydroxynaphthalene-3-carboxylic acid) acid addition salt of N-p-chlorobenzhydryl-N1-(2-hydroxyethoxyethyl)-piperazine, wherein the acid and base components are present in an equimolar ratio and the preparation thereof by reacting a N-p-chlorobenzhydryl-N1-(2-hydroxyethoxyethyl)-piperazine diacid salt in an aqueous solvent medium with an equimolar amount of a 1,1-methylene-bis-(2-hydroxynaphthalene-3-carboxylic acid) dibase salt or by reacting the base component or a diacid salt thereof, in an inert, polar solvent with an equimolar amount of the acid component.  Reference has been directed by the Comptroller to Specification 817,231.ALSO:Pharmaceutical compositions comprise the 1,11 - methylene - bis - (2 - hydroxynaphthalene-3-carboxylic acid) acid addition salt of N - p - chlorobenzhydryl - N1 - (2 - hydroxyethoxy ethyl)-piperazine wherein the acid and base components are present in an equimolar ratio, together with a pharmaceutically acceptable carrier.  The compositions may be in the form of tablets, capsules or elixirs.  Reference has been directed by the Comptroller to Specification 817,231.
Patent GB-1447445-A (GB)
Title: Process for the production of hydroxydiphenyl
IPC: B01J27/00
Filed: 1974-03-25
Abstract: 1447445 Production of hydroxydiphenyl BAYER AG 25 March 1974 [26 March 1973] 13056/74 Heading C2C A process for the production of hydroxydiphenyl in which a starting material comprising completely and/or partially hydrogenated hydroxy-diphenyl or the corresponding keto compound is dehydrogenated in the gaseous phase in the presence of a dehydrogenation catalyst comprising Ni, Cr, Al, Cu and an alkali metal sulphate and/or alkali metal carbonate, is characterized in that the starting material is free from autoxidation products less volatile than the completely and or partially hydrogenated hydroxydiphenyl, or those of peroxidic nature, and only containing products of acidic nature to such an extent that the acid number of the starting material is less than 2.
Patent GB-131548-A (GB)
IPC: A43D8/04
Abstract: 131,548. Verhoogen, G. Feb. 18, 1919. Stiffeners.-Toe and heel stiffeners are made from fabric impregnated with a solution of cellulose. The stiffeners are kept in an air-tight box, the base of which is covered with a layer a of felt saturated with acetone &c. A grill b carried by corner brackets f supports a frame c, which is formed with corrugated sides so as to keep the stiffeners d spaced apart from each other.
Patent GB-1065546-A (GB)
Title: Improvements in and relating to epoxy resins
IPC: C07D493/10
Filed: 1964-03-31
Abstract: A bisphenol of Formula B is prepared by reacting 3,9-divinylspirobi (m-dioxane) with phenol in the presence of a H3PO4 + P2O5 catalyst at 35-45 DEG  C.  After neutralization the reaction mixture was stripped of volatiles and the bisphenol purified by filtering off the insoluble salts <FORM:1065546/C2/1>ALSO:Epoxy resins which are the diglycidyl polyethers of the bisphenols of 3,9-divinylspirobi-(m-dioxane) may be prepared by reacting the bisphenol of the formula <FORM:1065546/C3/1> wherein R=H, alkyl or halogen, in the presence of an alkali base. The molecular weight of the epoxy resins may be raised by reaction with a further amount of the bisphenol.  The epoxy resins may be mixed with conventional bisphenol A/epichlorohydrin epoxy resins and may be cured with conventional polyamine, polycarboxylic acid or anhydride, and BF3.EtNH2 curing agents.  The curable compositions may be cast or used as binders in the filament winding of glass roving.ALSO:Glass roving is coated with a methyl ethyl ketone solution of an epoxy resin which is the diglycidyl polyether of the bisphenol of 3,9-divinylspirobi (m-dioxane) with a blend of m-phenylenediamine or methylene-dianiline and a diglycidyl ether of bisphenol A as curing agent.
Patent GB-1255997-A (GB)
Title: Improvements in high voltage direct current circuit interrupting arrangements
IPC: H01H33/16
Filed: 1969-03-13
Abstract: 1,255,997. Arc rupturing in switches; vacuum switches; electromagnetic switches. GENERAL ELECTRIC CO. 13 March, 1969 [20 March, 1968], No. 13208/69. Heading H1N. An arrangement for interrupting a highvoltage direct-current circuit comprising a source 12, a load 14 and a smoothing capacitor 20 connected across the circuit, wherein a circuit-interrupter, e.g. a vacuum switch 25 is connected in the circuit on the load side of the capacitor 20 and a normally-open circuitmaking device 38 is connected across the circuit on the load side of the interrupter. When the circuit-interrupter 25 is opened, the circuitmaking device 38 is closed to permit the capacitor to discharge through the arc in the interrupter 25 and the device 38. The discharge current is oscillatory and causes a current zero to occur at the interrupter 25 so extinguishing the arc. The device 38 may be a triggered spark gap device with an auxiliary gap which is triggered when the circuit to a pulse source 56 is completed by the closing of auxiliary contacts 75 of the interrupter 25. An electromagnet may move the upper electrode 40 of the device 38 into engagement with the lower electrode 42 to extinguish the arc in the device 38. Multiple series-connected " breaks " may be used for each of the interrupter 25 and the device 38.
Patent GB-133003-A (GB)
IPC: F23D14/58
Abstract: 133,003. Aird, K., and Chalmers, R. B, May 22, 1919. Gas stoves.-A utensilsupporting plate 7 corresponding to the contour of the head of a heating-burner is supported above the upper edge of the burner head, e.g. by means of posts 6 integral with the chamber so that the mixture is burned beneath the plate. The plate 7 may be detachably secured in position by a screw or screws inserted into the wall of the burner head or into an internal spider or bridge-piece. The burner head is fitted with grooved strips 4 resting on an internal ledge therein.
Patent GB-133083-A (GB)
IPC: H01Q1/04
Abstract: 133,083. Rogers, J. H., and Lyon, H. H. Nov. 10, 1916, [Convention date]. Aerials and like radiating and receiving conductors; directive wireless signalling; multiplex wireless signalling.-The radiating and receiving conductors of a wireless signalling system are placed on or beneath the surface of the earth or water and in electrical contact therewith. For directive and multiplex working, several conductors extending in different directions, and switching-arrangements for the conductors are provided. In the arrangement shown in Fig. 1, the conductor 16 in contact with the earth is placed under the earth's surface 15 and is provided with an earth-plate'17. In a modification, the conductor 16 is placed on the earth's surface. In the modification shown in Fig. 2, the earth-plate 17 is replaced by a second conductor. 18 similar to the conductor 16. For directive or multiplex working, several conductors 16, 18, 25, 28, Fig. 5, are provided with switches 32, 33, 34, 35 to connect them in circuit with a transmitting or receiving arrangement T. The conductor may be provided with fins to enable it to float near the surface of the water when towed by a ship. A second. conductor, which may be the ship's hull, is provided. In the modification shown in Fig. 7, the conductor 18<2> is provided with floats 18<4>; while, in a modification, it lies at the bottom of the sea. In the arrangement shown in Fig. 9, the receiving-apparatus T is placed under the earth's surface.
Patent GB-564091-A (GB)
Title: Insecticidal compositions
IPC: A01N25/02
Filed: 1942-09-22
Abstract: An insecticidal composition comprises a readily emulsifiable mineral oil insecticidal material and a small amount of a cation surface active emulsifier less than would have the effect of increasing the emulsibility of the oil, i.e. from about .01 per cent to about 1 per cent.  The effect of the addition is to reduce the negative change or produce a slight positive change on the oil globules of the emulsion and cause a more rapid breakdown of the emulsion on the surface treated.  The presence of an anion emulsifier does not materially affect the action of the cation active agent.  Suitable cation active substances are "onium" compounds and their salts with organic or inorganic acids, such as those of nitrogen, phosphorus and sulphur in which a lipophilic group is attached to the nuclear atom, e.g. trimethyl octadecyl-ammonium bromide; fatty acrylated nitrogen bases and alkylated pyridine derivatives; basic condensation products of organic carboxylic acids and amino-alcohols or diamines having a lipophilic group of at least eight carbon atoms, of which the substances known as sapamines and ninols are typical.
Patent GB-244645-A (GB)
Title: Improvements in the manufacture and production of stable bicarbonate of ammonium
IPC: C01C1/26
Filed: 1925-05-21
Abstract: n-Propyl-, isopropyl-, n-butyl- and iso-butyl-naphthalene sulphonic acids are prepared by the interaction of the appropriate alcohol upon naphthalene or naphthalene sulphonic acid in the presence of sulphuric acid.  More than one alkyl group may be substituted in the nucleus.ALSO:Ammonium bicarbonate free from other compounds of ammonia and carbon dioxide is obtained by crystallizing it from an initially hot aqueous solution and introducing carbon dioxide while the crystallization continues as the solution cools.  Instead of pure carbon dioxide gases rich in carbon dioxide may be used which may also contain a small quantity of ammonia.  The process is facilitated by the addition of a substance which influences the surface tension of the solution, and especially a substance which increases the surface tension.  As examples of the latter are mentioned ammonium sulphide, sugar and oily liquids such as benzene, petrol, carbon tetrachloride, iron carbonyl, or oils obtained from coal or lignite tar.  Propyl and butyl substituted naphthalene sulphonic acids which reduce the surface tension may also be used.  A tar oil before use may be emulsified by means of ammonia solution.  In an example an ammonia solution is saturated with highgrade carbon dioxide while stirring and without cooling. The crystals which separate as the solution cools are removed and dried in a revolving furnace by means of heated air.
Patent GB-440015-A (GB)
Title: Improvements in or relating to stabilising devices for flying machines
IPC: B64C17/00
Filed: 1935-05-07
Abstract: 440,015. Controlling aircraft. SOC. D'ETUDE ET DE CONSTRUCTION D'APPAREILS DE TELEMECANIQUE, 11<bis>, Rue de Laplanche, Paris. May 7, 1935, No. 13420. Convention date, May 4, 1934. [Class 38 (iv)] In a stabilizing arrangement for aircraft wherein a pendulum operates upon electric contacts controlling servo-motors actuating control surfaces, members, such as Venturi tubes, responsive to air velocity act through such means as anemometric capsules upon certain of the contacts so as to correct the action of the pendulum. The Figure shows a device controlling lateral stability and Venturi tubes 21, 22, one on each lateral extremity of the machine operate through capsules 25, 26 upon a rod 19 pivoted on the axis 13 and carrying insulated contacts 33, 34 which co-operate with contacts 35, 36 carried by a lever 40, controlled by the servo-motor 42 and a biassing spring 41. The capsules are carried by a frame member rigidly connected with the pendulum 12. The pairs of contacts control relays 45, 46 and a servo-motor 42 adjusting the ailerons and rudder. A similar device for stabilizing in elevation has a single Venturi tube upon the longitudinal axis of the machine connected with the capsules, the normal effect of which is balanced by a spring. Any change in air-speed of the aircraft causes the servomotor to actuate the elevators and effect a correction.
Patent GB-134568-A (GB)
IPC: B64D31/04
Abstract: 134,568. Kennedy, C. J. H. Mackenzie-, and Clarke, T. W. K. May 2, 1918. Hand, foot, and like gear.-Means for simultaneously or independently controlling the throttle valves or other controlling-means of one or more pairs of engines, more particularly engines on aeroplanes, comprises a number of pairs of disks 1, 4 mounted on a shaft 2, and which are relatively adjusted by means of nuts and bolts 5 secured to the disks 1 and passing through slots 6 in the disks 4. The disks are controlled by a common lever 3 which is provided with a bevel-wheel 10 engaging bevel-wheels 11 on the disks 1. The disks are connected by wires to the throttle valves or other controlling-means. The parts are simultaneously adjusted by rotating the lever 3 about the shaft 2, or the pairs of disks are adjusted in opposite directions by rotating the lever 3 about its own axis. In a modification, the pairs of disks are provided with arms which are relatively adjusted by screw-and-nut mechanism to arms on adjacent spider-rings having notched levers which normally engage projections on a sleeve secured to the shaft, but which may be disengaged to allow independent movement of the disks.
Patent GB-352602-A (GB)
Title: Improvements in and relating to notching mechanisms for electric controllers or the like
IPC: H01H19/11
Filed: 1930-05-01
Abstract: 352,602. Controllers ; snap-action switches. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Perry, C. L. ; 24, Rugby Road, Schenectady, New York, U.S.A.) May 1, 1930, No. 13482. Convention date, May 1, 1929. [Classes 38 (iii) and 38 (v).] Actuating mechanically.- A controller operated by a rope 13 is retained at any notch by a starwheel 15 engaged by a roller 19 carried by a lever 18. In order to prevent the possibility of the wheel 15 stopping in a position such that the roller engages a top of a tooth, the roller is carried by an arm 22 pivoted to the roller 18 and maintained in a centralized position by a spring. As the wheel 15 is moved from one notch to the next, the arm 22 is initially displaced from its central position, thereafter the roller 19 moves along the inclined face of the tooth till it reaches the top, whereupon the arm 22 is centralized by its spring so as to bring the roller into engagement with the other face of the tooth. Two modifications are described in which the relative disposition of the lever and arm is varied, and one modification in which the lever and arm are replaced by a floating member. In each case, however, the motion of the roller is the same as that described above.
Patent GB-1424194-A (GB)
Title: Gas induction inlet arrangements of aviators greathable gas  regulators
IPC: F04F5/48
Filed: 1972-03-23
Abstract: 1424194 Gas induction inlet for respiratory apparatus NORMALAIR-GARRETT (HOLDINGS) Ltd 13 March 1973 [23 March 1972] 13582/72 Heading AST [Also in Divisions F1 and F2] A gas induction inlet device 10 for an aviator's breathable gas regulator, comprises a disc valve 12 controlling air entry through holes 20 into an induction chamber 11 of the regulator, the gas pressure below the valve 12 being substantially balanced by gas pressure, supplied to a pneumatic actuator 15 via a pipe 25. The actuator includes a diaphragm 17 carrying a spindle 18 and the spindle engages the valve 12 so that said valve is substantially held closed by the pressure of a spring 14 alone. A pressure reduction below the valve opens it against the pressure of said spring and air is induced into the chamber 11 via the holes 20. This air dilutes oxygen supplied under pressure through a nozzle 23. In an alternative arrangement, the gas pressure supplied to the pipe 25 is derived from a control pressure chamber.
Patent GB-922612-A (GB)
Title: Improvements relating to electrode holders for electric welding apparatus
IPC: B23K9/28
Filed: 1959-04-21
Abstract: 922,612. Arc welding electrode holders. E. WELKEN. April 21, 1959 [April 21, 1958], No. 13603/59. Class 39 (3). A pivotally mounted electrode holder is so constructed that the holder itself and the parts providing the pivoting movement do not conduct any electricity to the electrode. In one arrangement, Fig. 1, an insulated cable 8 is secured in a tubular support member 1 by a set-screw 28 and has a bared end portion 9 secured by welding or soldering to a contactor 3 which is slidable in a tubular electrode holder 2 of insulating material to an extent determined by a loop 29 in the cable 8. Apertures 13 and 19 in the holder 2 permit the insertion of an electrode 7 between the contactor 3 and a spacing member 11 of insulating material engaged by a spring 12. The holder 2 has threaded spindles 10 carried in bosses 33 on arms 5 fixed to the support member 1. A toothed ring 6 mounted on a square portion 30 of one spindle 10 is pressed into engagement with teeth on one of the bosses 33 by a nut 32 to secure the holder 2 in a selected pivoted position. In a modified arrangement (Fig. 2, not shown), the holder 2 is pivoted to a position at right-angles to the support 1 and the apertures 13 and 19 are displaced through 90 degrees so that the electrode 7 pivots in the plane of the support 1. In an alternative arrangement, Fig. 3, the cable 8 is secured in a clamp 15 on the support member 1 by a screw 27. Arms 5 having bosses 36 mounted on pivots 35 on the member 1 are secured to a ring 14 held on the electrode holder 2 by a threaded cover 25. A contactor 3a screwed on to the bared end portion 9 of the cable 8 has an extension 18 provided with an aperture 4a. A sleeve 16, with a shoulder 23, sliding in the holder 2 contains a spring 12a and a distance piece 21. Pressure on the sleeve 16 brings apertures 13a and 19a surrounded by bosses 26 into line with the aperture 4a to enable an electrode to be inserted. The sleeve 16 may be of insulating material or may be of metal, in which case either the sleeve 16 or the extension 18 is provided with a layer of insulation.
Patent GB-1037790-A (GB)
Title: Process and apparatus for preparing a coated web free from edge streaks
IPC: D06B15/09
Filed: 1965-03-31
Abstract: A process for preparing a web for an hydrophobic polymeric material coated with a film-forming aqueous polymeric dispersion free from edge streaks is performed by a means, e.g.a roller device 71 (Fig. 1, not shown), for applying the coating to the web, a radiant drier 10 and means 9, preceding the drier 10, to dry the edges of the web. The edge drying means preferably project gas streams on to the edge portions.  The gas, which is air or another inert gas, is conditioned and may be heated.  The size and position of the air streams are adjustable (Figs. 2, 3, 4, not shown).  In the form shown a web 3, e.g. of polyethylene terephthalate, is formed on a chilled casting roller 2 from which it is stripped by a roller 4.  The layer applied to the web may be to facilitate the subsequent application of a photo-emulsion.  The web may comprise hydrophobic cellulose carboxylic acid esters including cellulose acetate, cellulose acetate butyrate, cellulose nitrate, highly polymeric linear esters of a dicarboxylic acid and a dihydric alcohol, e.g. polyethylene terephthalate, a super-polyamide and polyvinyl chloride.  The coating composition may comprise a reaction product of 90 parts vinylidene chloride, 10 parts methacrylate and 2 parts itaconic acid in aqueous dispersion of the coatings disclosed in Specifications 688,528; 718,422; 726,736; and 885,958.ALSO:Apparatus for preparing a web of an hydrophobic polymeric material coated with a film-forming aqueous polymeric dispersion free from edge streaks comprises means e.g. a roller device 7 (Fig. 1, not shown) for applying the coating to the web, a radiant drier 10 and means 9, preceding the drier 10, to dry the edges of the web.  The edge drying means preferably project gas streams on to the edge portions.  The gas which is air or another inert gas is conditioned and may be heated.  The sizes and positions of the air streams are adjustable (Figs. 2, 3, 4, not shown).  As shown a web 3, e.g. of polyethylene terephthalate, is formed on a chilled casting roller 2 from which it is stripped by a roller 4. The layer applied to the web may be to facilitate the subsequent application of a photo-emulsion.
Patent GB-647367-A (GB)
Title: Improvements in or relating to the revivification of bone char
Inventor: CLELAND JAMES EDWIN
IPC: C01B31/08
Filed: 1948-05-20
Abstract: Bone char employed in treatment of carbohydrate solutions and containing undesired mineral deposits, such as salts of iron, calcium sulphate, or calcium sulphide, and carbohydrates is revived by dispersing the char in water, adding an alkali, e.g. hydroxides of sodium or potassium, to increase the pH to 10-12, and heating the mix, e.g. by steam, to at least 180 DEG  F. for say 1-2 hours, the subsequent reaction being such that the carbohydrates are converted to organic acids which dissolve the mineral matter.  The bone char is subsequently drained, washed, dried, e.g. by blowing air through under pressure, and heated in a kiln to 700-1000 DEG  F.
Patent GB-184572-A (GB)
Title: Safety valve device for hydraulic presses
IPC: B30B15/28
Filed: 1921-05-17
Abstract: 184,572. Neutze, H. May 17, 1921. Safety valves.- In a safety-valve device for hydraulic presses, special means are provided for enabling the pressure in the working cylinder to lift the weight of the valve lever when the pressure becomes excessive on account of the failure of the valve to act. In these circumstances, a piston 17 is actuated against a spring 18 to cause a lever 14 to move a latch 12 out of engagement with a pivoted tumbler 8, which thereupon falls and causes a lever 9 to withdraw a bolt 7 from engagement with a spring-loaded piston 4 located in the weight 1. The piston is prevented from moving by a fixture 6, and its spring 3 consequently raises the weight.