baber/WOPTO huggingface dataset:
Patent GB-724219-A (GB)
Title: Improvements in the production of cycloaliphatic ketones or their oximes from nitrocycloalkanes
Filed: 1952-05-27
Abstract: In a process for the production of cycloaliphatic ketones or their oximes from nitrocycloalkenes ammonium salts of acinitrocycloalkanes are introduced into aqueous solutions of excess mineral acids having no oxydizing action and a dissociation constant of more than 10-2 or into aqueous solutions of about equivalent amounts of hydroxylamine containing an excess of the said mineral acids respectively. Nitrocycloalkanes which may be used for the production of the ammonium salts include nitrocyclopentane, nitrocyclohexane, nitrocyclohexane, nitrocyclo-octane prepared as described in Specification 720,646 and the homologues which contain methyl, ethyl, phenyl or cycloalkyl groups at their ring carbon atoms with the exception of that bearing the nitro group.  The ammonium salts may be produced by dissolving the nitrocycloalkanes in liquid ammonia or by bringing together vaporous nitrocyclo alkanes and gaseous ammonia. In examples, cyclohexanone oxime is obtained by gradually adding the ammonium salt of aci-nitrocyclohexane to a solution of hydroxylamine sulphate containing excess sulphuric acid prepared from a solution of hydroxylamine monosulphonic acid obtained in turn from ammonium nitrite, ammonium bisulphite and sulphur dioxide (1); and cyclohexanone is obtained by adding the ammonium salt of aci-nitrocyclohexane to 25 per cent sulphuric acid and separating the oily layer.  The aqueous layer after addition of concentrated sulphuric acid is reused until a concentrated solution of ammonium sulphate is obtained from which ammonium sulphate is recovered.
Patent GB-180199-A (GB)
Title: Improvements in magnetic compasses
IPC: G01C17/00
Filed: 1921-05-11
Abstract: 180,199. Weiss, B. May 11, 1921. Mariners' compasses.-The casing of a compass of the liquid type is formed with a compartment for retaining air bubbles, and a valve is provided for normally closing the compartment. A funnelshaped diaphragm 15 divides the casing 6 into an upper compartment containing the card 13 and a lower compartment into which the air bubbles can be caused to pass through an opening 16 by inverting the compass. Normally the open,ing 16 is closed by a ball 17 disposed within a cage 11 carrying a pivot 12 for the card.
Patent GB-1470275-A (GB)
Title: Automatic co2-content gauge
IPC: G01N7/20
Filed: 1975-04-02
Abstract: 1470275 Measurement of the CO 2  content of a liquid HEINEKEN TECHNISCH BEHEER BV 2 April 1975 [4 April 1974] 13422/75 Heading G1B An apparatus for the determination of the CO 2  content of beer comprises an analyzer adapted to be connected in parallel with a beer circuit and which can be isolated from the circuit during each determination, the analyzer being provided with temperature and gas-pressure measuring means, means for correcting the measured gas-pressure for variation of the measured temperature from a given reference temperature, and means for transmitting a signal from said analyzer to a CO 2  contentrecorder or a CO 2  control apparatus, wherein said gas-pressure measuring means is a differential pressure gauge which in use measures the gas-  pressure in the beer samples isolated in the analyzer and also receives a correction pressure signal from a temperature compensation transmitter forming said gas-pressure correcting means, so that said differential pressure gas can directly transmit a corrected signal to said CO 2  content recorder or control apparatus. An apparatus of the above type is shown in the accompanying Figure. In use, a sample of beer is isolated between valves 2 and 18. Piston 17 moves to the left so that a CO 2  atmosphere forms at the left of diaphragm 15, the pressure of this atmosphere being measured by differential pressure gauge 12. The beer analyzer 5 is provided with electrodes 6, which are activated so as to produce O 2  and H 2  gases in the liquid in the analyzer, the formation of these gases agitating the beer present in the analyzer so as to eliminate any CO 2  supersaturation in the beer. The output signal of the differential pressure gauge 12 depends on the CO 2  pressure in 16 and on the pressure to the right of diaphragm 15, the latter pressure being generated by transmitter 10 in response to a signal from the resistance thermometer 7. The displacement of the diaphragm 15 under the influence of the pressure in chamber 16 and the compensation pressure to the right hand side of said diaphragm is transformed by the pneumatic differential pressure gauge 12 to a pneumatic signal and transferred to the CO 2  content recorder 13 or a CO 2  dosing device.
Patent GB-1458744-A (GB)
Title: Process for producing a 6-deoxytetracylines
IPC: C07C/
Filed: 1974-03-26
Abstract: 1458744 Production of 6-deoxy-tetracyclines PFIZER Inc 26 March 1974 [20 April 1973 3 Dec 1973] 13479/74 Heading C2C 6 - Methyl - 6 - deoxy - tetracyclines are prepared by introduction of hydrogen into a reaction-inert solvent medium containing a catalytic amount of rhodium metal and compound I or an acid addition salt thereof (R is H or OH, X is H, Cl, or F). The mixture is maintained at 0-100 C. and the pressure is between atmospheric and 2000 p.s.i. The 6-methylene group is hydrogenated and the 11a-halo group, if present, is removed. The reaction is conducted in the presence of a catalytic amount of rhodium; 2-10 moles, per mole rhodium metal, of a phosphine R 1 R 2 R 3 P (R 1  and R 2  are phenyl or substituted phenyl and R 3  is R 1 , H or 1-4C alkyl) and at least 1 mole acid per mole tetracycline base or 0À1-1 mole SnCl 2  per mole tetracycline acid addition salt.
Patent GB-1499402-A (GB)
Title: Photographic printing processes and composition
IPC: G03C1/76
Filed: 1975-04-02
Abstract: 1499402 Photographic processes R BOUCHER and F A FOULQUIER-GAZAGNES 2 April 1975 [3 April 1974] 13497/75 Heading G2C [Also in Division D1] A photodyeing process comprises impregnating a dyeable support with an aqueous photosensitive composition comprising a leuco ester of a rat dyestuff, a substance which generates acid on exposure to light, and an ammonium vanadate and imagewise exposing the moist support to actinic light to produce a dye image. This may be fixed by boiling in an alkaline solution (of Example 1). Acid generating substances exemplified are ammonium acetate, disodium hydrogen pyrophosphate and preferably ammonium sulphate. The preferred vanadate is ammonium metavanadate. Supports can be flexible or rigid and of animal, vegetable, mineral and synthetic origin, preferably rendered hydrophobic. The rat dyestuff is preferably an anthraquinone dyestuff. The photosensitive compositions may also contain ammonium thiocyanate or ammonium dichromate. Monochrome prints may be obtained by the use of a mask and polychrome prints by the use of different masks and different colours.
Patent GB-107486-A (GB)
Title: Locking Mechanism for Differential Gear.
Inventor: HEAP WALTER
IPC: F16H48/30
Filed: 1916-09-22
Abstract: 107,486. Heap, W. Sept. 22, 1916. Differential gearing, locking. A toothed pinion K mounted on a rocking lever is moved into simultaneous engagement with spur wheels B C on the gear casing A and on one of the driven shafts D respectively, causing these parts to rotate at the same speed. Specification 16401/14 is referred to.
Patent GB-669234-A (GB)
Title: Improvements in or relating to cinematograph cameras
IPC: G03B19/18
Filed: 1950-05-31
Abstract: 669,234. Kinematograph cameras. PAILLARD SOC. ANON. May 31, 1950 [June 14, 1949; Dec. 7, 1949], No. 13556/50. Classes 97 (i) and 98 (i). A kinematograph camera has a view-finder which includes a prism located in the light path between the objective and shutter of the camera and provided with a semi-reflecting surface which is inclined to the optical axis of the objective and intercepts only a part of the cross-section of the beam which emerges from the camera lens and is incident on the prism. As shown, the camera comprises an objective 1, light from which passes through a prism P and a shutter 2 so as to form an image MN of an object on a film 3. The prism P is made up of two prisms 4, 5 which are in contact along a plane surface inclined at 45 degrees to the objective axis. The central portion 7 of this surface is semi-reflecting so that light is reflected thereby and an image is formed on an unpolished surface M<SP>1</SP>, N<SP>1</SP> of a glass block 6 which contacts the prism 5. A screen E which may be formed by a bevel in block 6, masks out stray light and the faces d, e of prism P may be treated so as to obviate stray reflections.
Patent GB-1338204-A (GB)
Title: Thermosetting acrylic powder coating compositions
IPC: C08G59/32
Filed: 1972-03-23
Abstract: 1338204 Acrylic copolymer composition KANSAI PAINT CO Ltd 23 March 1972 [26 March 1971] 13558/72 Heading C3B A thermosetting powder coating composition comprises (A) an acrylic copolymer and one or more of (B) aliphatic dibasic acids HOOC-RCOOH or anhydrides or substances yielding such acids under curing conditions, where R is a saturated or unsaturated C 4-11  aliphatic hydrocarbon group. (A) has glass transition temperature 40-70‹ C and is a copolymer of (1) 70-95% wt. of at least one acrylate or methacrylate CH 2 =CR<SP>1</SP>-COOR<SP>2</SP> (a) where R<SP>1</SP> is H or CH 3  and R<SP>2</SP> is C 1-17  alkyl, which may be mixed with up to 1À5 parts by wt., based on (a), of other vinyl monomers, and (2) 5-30% wt. of glycidyl acrylate and/or methacrylate. The vinyl monomer may be styrene, acrylonitrile, vinyl acetate or toluene. (A) and (B) may be melt blended and then cooled and pulverized to particle-size 20-150 Ám. Also present may be pigments, fillers, or levelling agents, e.g. TiO 2 , iron oxide, carbon black. Copolymer (A) may be made by heating the monomers with water, Na lauryl sulphate, Na 2 SO 4 , polyvinyl alcohol, azobisisobutyronitrile, stearic acid. Use.-Coating cars, steel furniture, and fences, e.g. by electrostatic powder coating of zincphosphate-treated steel, followed by baking at 150-220‹ C.
Patent GB-694366-A (GB)
Title: Method of and machine for making grommets from wire, cord or other suitable material
IPC: B21F37/00
Filed: 1950-06-02
Abstract: 694,366. Making joint-making packing; coiling. BRITISH ROPES, Ltd., and ELKINGTON, R. June 4, 1951 [June 2, 1950], No. 13852/50. Classes 83 (ii) and 83 (iv). [Also in Group XXV] A grommet is made from a predetermined length of wire, or other material, prewound on a bobbin, by fastening one end thereof to an endless core which is then axially traversed while the major part of said length is mechanically wound thereon by moving the bobbin in a fixed circular path about an axis formed by one run of the core and then severing the core and withdrawing it and at the same time tucking the final part of said length of wire into the hole left thereby. The machine for effecting the first step comprises two grooved wheels 12, 13 carrying the endless core, mounted on vertical shafts 37, 137, the former being driven from a motor through belt and worm gearing 31, 35 and the latter adjustable by hand-operated screws 16 to tension the core. A bracket 43 carries a slit tube 42 concentric with one run of the core and a slit and a toothed disc 41 is mounted to rotate on this tube 42, being driven by the motor through a pinion on the shaft 33. The bobbin 45, which carries the length of wire, is freely mounted in a bracket 46, Fig. 4, adjustably carried by a spindle 47 freely mounted in the disc and connected by a crank 48 to a slit annulus 50 free to rotate about an axis eccentric to the tube 42, being supported by this tube and by two rollers 51, Fig. 6. This arrangement keeps the axis of the bobbin from angular displacement as it moves. The said major part of the wire may be preformed helically before the whole is wound on the bobbin 45. When the core is all covered the machine is stopped and the core is exposed and severed at the starting-point. The remaining length of wire is then tucked in, as the core is removed, by suitable hand-tools while the machine traverses the work slowly. The slits 52 are arranged to coincide in their highest position for the insertion of the core and the removal of the grommet.
Patent GB-549753-A (GB)
Title: Improvements in electromagnetic horn radiators
IPC: H01Q13/02
Filed: 1941-10-28
Abstract: 549,753. Wireless signalling ; aerials. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Oct. 28, 1941, No. 13887. Convention date, Oct. 29, 1940. [Class 40 (v)] In electromagnetic horn radiators maximum gain for a given length of Horn is obtained when the two flare angles of a rectangular horn are unequal, the flare angle being smaller in the direction of the electric field than in the plane normal to it. In order to use efficiently a horn with a rectangular or square mouth for duplex operation with two waves polarized at right angles the rate of taper between opposite walls of the horn is effectively decreased for waves of one polarization without substantially affecting the effective rate of taper for waves polarized at right-angles to the first. The rate of taper is decreased : by a field of wires 9 attached to the inside surfaces of the horn and projecting inwards so that the free ends of the wires define the reduced taper. The wires may be perpendicular to the sides to which they are attached, or parallel to the sides of the mouth or throat apertures
Patent GB-563112-A (GB)
Title: Improvements relating to the heating of aircraft
IPC: B64D13/08
Filed: 1942-10-02
Abstract: 563,112. Heating aircraft. TECALEMIT, Ltd., and LE CLAIR, C. C. S. Oct. 2, 1942, No. 13887. [Class 64 (ii)] [Also in Group X] Products from the combustion chamber 2 of a burner 1 pass through a tubular heat exchanger 5 in which air supplied by a blower 7 and passing from inlet 6 to outlet 8 is heated. The air is delivered into the aircraft through injectors 9 where it is mixed with entrained cool air to reduce it to the desired temperature. Air for combustion may also be supplied by fan 7, or from the hot air conduct 8, or may be drawn from the outside air by a forwardly-facing cowl, and its flow may be thermostatically controlled. The hot gas for heating the exchanger 5 may be the exhaust gas from the propelling engines.
Patent GB-985327-A (GB)
Title: Improvement in automatic controllers by utilizing monitored electro-magnetic relays
IPC: H03K17/54
Filed: 1962-04-11
Abstract: 985,327. Automatic control systems. H. J. HAYES. July 9,1963 [April 11, 1962], No. 13897/62. Heading G3R. [Also in Division H2] In an automatic control system for a physical variable of the type in which an electromagnetic relay controlling a regulator is operated by a control signal responsive to the variable, reliability is improved by using two relays A, B which operate together in response to a common signal applied at terminals 7, 8 to the control grids of valves 20,21,the relay contacts A1,A2,A3,B1,B2, B3 being so arranged that should a fault occur in one relay or its associated circuit, the control of the regulator (through terminals 3,4) is maintained by the serviceable relay circuit and an alarm is operated (terminals 5, 6) each time the serviceable relay is energized. A lamp 16 or 17 is energized with the alarm to indicate which relay circuit is at fault. Further relay contacts A4, B4 and a switch 19 ensure continuity of the function of interlock circuits (terminals 9,10). The faulty circuit component may be found by interchanging the corresponding components of the two circuits. Resistors 11,12 prevent a short circuit in the heater circuit of one of the transformers 13,14 making both inoperative. The Provisional Specification mentions the use of a monitored relay arrangement to switch on a stand-by controller and give an alarm when a main controller becomes unserviceable.
Patent GB-702687-A (GB)
Title: Improvements in and relating to the cooling of ingots in the continuous casting of high-melting metals
IPC: B22D11/124
Filed: 1951-06-12
Abstract: 702,687. Continuous casting-machines. BOHLER & CO. AKT.-GES., GEB. June 12, 1951 [June 12, 1950], No. 13941/51. Class 83 (1) The casting emerging from a continuous casting-machine is cooled by tangential streams of a gaseous cooling medium directed on to the casting in a number of planes. The casting 1 passes through a casing 2 into which open, in five planes spaced along the length of the casting, sets of pipes 3 and deflectors 4, the pipes being supplied with air carrying finely-divided drops of water. The nozzles of the central plane or planes may supply a greater volume of cooling air than those in the marginal planes, or alternatively a general downward flow may be obtained by supplying a greater volume of cooling air at the upper part of the casing and by partially covering the upper end of the casing. The air supplied at different planes may carry different proportions of atomized water.
Patent GB-437817-A (GB)
Title: Process for the production of tubular structures from cellulose derivatives
IPC: B29C41/04
Filed: 1934-05-09
Abstract: In a process for the production of tubular structures from solutions of cellulose esters, the solution is distributed on the internal or external surface of a tube while the tube and/or the feeding device for the solution is rotated.  The tube and the feeding device may also be axially displaced relatively to one another during the formation of the tubular structure.  When using a solution having a volatile solvent from which the tubular structure is formed by evaporation, the solution is preferably distributed on the inside of the tube, but coagulation may be effected by wet precipitation, the precipitant being applied to the moulding tube before and/or after the application of the cellulose ester solution, but advantageously before.  A current of air or gas may be circulated through or over the moulding tube to facilitate solidification.  Examples of volatile solvents for the cellulose ester are methylene chloride (for the tri-acetate) and alcohol-ether (for the nitrate).  Suitable precipitants are solutions of ammonium nitrate or ether.
Patent GB-884097-A (GB)
Title: Improvements in or relating to raking implements
Filed: 1960-04-21
Abstract: 884,097. Haymaking machines. VAN DER LELY N. V., C. April 21, 1960 [May 13, 1959], No. 14061/60. Class 6(3). Relates to a haymaking machine of the kind having rake-wheels 20 arrangeable in a single group for side-delivery but in two or more groups for swath-turning. According to the invention, the main frame is fixed to the front of a tractor 13 and includes two frame-members 1, 2 provided with rake-wheel supports, the first member 1 being immovable relatively to the tractor in a horizontal direction and the second member 2 being attached at its free end to the first member, for side-delivery, but being vertically pivoted relatively to the tractor so that, for swath-turning, it extends parallel to the first member with its free end unsupported. The two members are carried on a transverse member 3 which is supported on the tractor about horizontal pivots 11a, 12a. The frame member 1 is braced by a fixed strut 14 and is supported by a caster-wheel 15a. In the swath-turning position, the second frame-member is braced by a tie 5 which is pinned, at 8, to the beam 3, but, in the side-delivery position, the beam 2 acts as a further strut by being connected to a point 26 on the strut 14 and the tie beam (shown dotted) engages the junction between the main strut 15 and the transverse beam 3. The rakewheels are mounted on cranks 19 resiliently supported by springs 31 and chains from rods extending longitudinally along the beams 1, 2 the rods being movable in unison by chains 32 attached to a hand-lever 38.
Patent GB-172035-A (GB)
Title: Improvements in or relating to the manufacture of carbon for pigmental and other purposes
IPC: C09C1/54
Filed: 1920-05-21
Abstract: 172,035. Nelson, J. May 21, 1020. Carbon.-To obtain a refined lamp-black by the thermal decomposition of hydrocarbon oils or vapours, the carbon-laden vapours from the cracking operation, which has been carried out in the absence of air, are passed into a settling chamber heated from an external source to a temperature sufficiently high to prevent the con densation of accompanying oily or tarry constituents on the deposited carbon. In the plant shown, cracking takes place in the pots C', C<2>, &c. containing molten lead e and through which are passed in succession the vapours for a still B also containing molten lead e, as described in Specification 116,304, [Class 32, Distilling &c.] ; from the cracking pots the vapours pass into a settling chamber for the carbon, heated independently or by the waste gases from the cracking furnaces, and then through a filter D<2> packed with coke, coal, pumice, or steel-wool; the carbon in the chamber D' is cooled before removal either bv allowing the chamber to cool down or by the passage of a non-condensable gas, or, alternatively, the gas may be introduced under pressure in order to discharge the carbon through a jacketed conduit to the carbon-storage house. Two or more settling chambers may be interposed between the cracking pots, and the vapours issuing from the final settling chamber may be led to a condenser for the recovery of condensable vapours; the uncondensable vapours may bo employed for heating the plant. Specification 17121/13, [Class 32, Distilling &c.], aiso is referred to.
Patent GB-461598-A (GB)
Title: Endless belt magazine for small firearms, more particularly pistols
IPC: F41A9/76
Filed: 1936-05-18
Abstract: 461,598. Belt magazines for firearms. SOSSO, G. May 18, 1936, No.14110. [Classes 92 (ii) and 119] Relates to magazines containing an endless belt of cartridges stretch ed between top and bottom drums especially for use in the grip of a pistol. According to the invention, the drums 5, 6 converge slightly towards the rear, the magazine casing 1, 2 is curved rearwardly, and the links 9 of the belt are hinged on slightly inclined hinges 10 so that the belt takes a curved path corresponding to the curve of the magazine, the centre of curvature being at the rear, approximately in line with the barrel, so that the grip of the pistol containing the magazine can be inclined downwardly rearwards as is desirable for a pistol. The rear end of the base of each link is formed like a ratchet tooth 9a to co-operate with the feed-pawl ; and the front end 9<b> is inclined upwards to guide the cartridge from the belt to the gun barrel. The rear parts 12<a> of the sides of the link reach above the centre line of the cartridge 11, and the front parts taper down to facilitate the passage of the cartridge from the belt to the gun barrel. The number of links in the belt is uneven, so that when a cartridge is at the top of the top drum, the space between two cartridges is at the bottom of the bottom drum, as shown in Fig. 2. The magazine wall comprises two halves 1, 2 secured together by screws 7.
Patent GB-1097183-A (GB)
Title: Polyurethane composition
Inventor: THOMAS COLIN REGINALD
IPC: C08G18/68
Filed: 1964-04-06
Abstract: A polyurethane is prepared by reacting a portion of a polyester having an OH number of 450-850 with a cyclic polyisocyanate, to form a prepolymer which is then reacted with the rest of the polyester, said polyester being formed from a non-halogenated bridged bicyclic polycarboxylic acid or corresponding anhydride and a non-halogenated polyhydric alcohol and the cyclic portions of the polyisocyanate and polycarboxylic acid or anhydride being free from combined nitrogen. Rigid foams may be produced by adding water or a low boiling liquid to the mixture of prepolymer and polyester.  Starting materials mentioned for the polyester are: trimethylol propane, trimethylolethane, 1,2,6-hexanetrol glyceriol, pentaerythritol, and methyl bicyclo 2:2:1 hept-5-ene 2:3 dicarboxylic acid (or anhydride).