baber/WOPTO huggingface dataset:
Patent GB-792593-A (GB)
Title: Carotenoids and the manufacture thereof
IPC: C07C11/21
Filed: 1956-06-25
Abstract: The invention comprises 15,151-dehydrolycopene, 1,11,2,21-tetrahydro-lycopene and a process for the manufacture thereof which comprises condensing 2,6,11,15-tetramethylhexadecahexaen - (2,4,6,10,12,14) - ine - (8) - diol-(1,16 with a geranylene-triarylphosphine or a (6,7 - dihydro - geranylene) - triarylphosphine and catalytically partially hydrogenating the triple bond of the resulting compound and isomerizing same in a manner known per se.  Alternatively the hexadecahexaene-ine-(8) may be first submitted to partial hydrogenation and isomerization and the product condensed with the phosphine derivative.  The condensation may be effected in diethyl ether, petroleum ether, benzene, dioxane, or preferably in methylene chloride in an inert gas, e.g. nitrogen.  The hydrogenation may be effected with a lead inhibited palladium catalyst in the presence of quinoline.  The hydrogenation and isomerization may be effected in an inert solvent such as ethyl acetate, toluene or petroleum ether. Examples describe the preparation of translycopene, 15,151 - dehydro - lycopene and 1,2,11,21-tetrahydrolycopene.  Starting compounds. C20-hexaeninedial is obtained by acetalizing 2,7-dimethyloctadien-(2,4,6)-ine-(4)-dial-(1,8), e.g. with orthoformic ethyl ester, condensing the resulting diacetal with a vinyl ether to produce a 3,10-dialkoxy-4,9-dimethyldodecadiene - (4,8) - ine - (6) - diacetal-(1,12); treating this compound with acid to produce a 4,9-dimethyldodecatetraene-(2,4, 8,10) - ine - (6) - dial - (1,12); and repeating these steps replacing vinyl ether by propenyl ether in the condensation step.  6-Methyl heptanone is condensed with sodium acetylide in liquid ammonia, the product hydrogenated at the triple bond and treated with PBr3 to obtain 6,7 - dihydro - geranyl - bromide.  Geranylene - triarylphosphine and (6,7 - dihydrogeranylene) - triarylphosphine are obtained by treating geranyl halide or 6,7-dihydro geranyl halide with triaryl phosphine in benzene and splitting off hydrogen halide from the resulting geranyl - triaryl - phosphonium halide or (6,7-dihydro - geranyl) - triaryl - phosphonium halide by means of ethereal butyl lithium or phenyl lithium.  Specification 792,594 is referred to.
Patent GB-907042-A (GB)
Title: Reduction of nitro compounds
Inventor: FARTHING ALAN CHARLES
Filed: 1960-06-02
Abstract: Amines are prepared by the reduction of aliphatic or aromatic nitro compounds by means of hydrogen sulphide in the presence of an amine NRR1R11, where R and R1 are each hydrogen, alkyl, cycloalkyl, alkylcycloalkyl or aralkyl, and R11 is alkyl, cycloalkyl, alkylcycloalkyl or aralkyl; or R1 and R11 together with the nitrogen atom form a saturated heterocyclic ring.  An alkali metal hydroxide may also be present.  Preferred reaction temperatures are 60-100 DEG C. Solvents may be used.  Specified nitro compounds are nitrobenzene, nitrotoluenes, nitroxylenes, nitronaphthalenes, 2,4-dinitrotoluene, 2,6-dinitrotoluene, 2-nitropropane and nitrocyclohexane.  Specified amine catalysts are cyclohexylamine, N-methylcyclohexylamine, N,N-diethylcyclohexylamine, piperidine, benzylamine, hexamethyleneimine, morpholine, tert-octylamine and triethylamine.
Patent GB-315265-A (GB)
Title: Improvements in and relating to methods of making a heat-resisting insulating materia
IPC: C03C1/00
Filed: 1929-06-26
Abstract: 315,265. International General Electric Co., Inc., (Assignees of Allgemeine Elektricitõts-Ges.). July 10, 1928, [Convention date]. Refractory substances.-A heat-resisting insulating, material is made bv the homogeneous distribution of kaolin; talc or heavy spar in a glassy flux with or without mica and/or asbestos. Specification 152,780 is referred to. The Specification as open to inspection under Sect. 91 (3) (a) states that gum may be added. This subject-matter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specifications25853/03, 138,799 and 152,780.
Patent GB-717757-A (GB)
Title: Improvements in or relating to flexible power transmission mechanism
IPC: F16H57/00
Filed: 1951-08-21
Abstract: 717,757. Resilient damped drive. TRUVOX ENGINEERING CO., Ltd., and SHORT, K. July 2. 1952 [Aug. 21, 1951], No. 19716/51. Class 80 (2) A flexible power transmission mechanism, wherein driving torque is transmitted between a driving member 2 and a coaxial driven member 1, comprises one or more flexible beams or pins 10 to which the torque is applied as a bending stress, the said pins &c. being supported with their principal axes parallel to the common axis of the driving and driven members and with their ends free to perform rolling and sliding motion, and also comprises frictional damping means such as a washer 15 &c. responsive to an axial thrust between the driving and driven members to absorb shocks arid vibration, spring means 14 being provided to exert the said axial thrust. As shown, the driving member 2 is a worm gear, and the reaction of the worm drive assists the frictional engagement of the damping meaps, the ends of the pins 10 engaging in tapered holes in bushes 12 secured to oil flingers 13, themselves fast on the driven member or shaft 1. A hole 18 in the hub of the gear receives a relatively small pin 19 fast on the shaft to limit the lost motion between the parts ; alternatively, the pin 19 may be of conical shape and may screw into the shaft to enable the amount of lost motion to be adjusted.
Patent GB-680545-A (GB)
Title: An improved manufacture of gases from carbonaceous materials
IPC: C10J3/46
Filed: 1949-07-27
Abstract: 680,545. Gasifying powdered fuel. ARNOLD, J. C. (Standard Oil Development Co.). July 12, 1950 [July 27, 1949], No. 19793/49. Class 55 (i). Gas mixtures rich in carbon monoxide are produced by subjecting a fluidized mass of subdivided carbonaceous solids to combustion with upwardly flowing oxygen-containing gas in a heating zone at a temperature above the minimum gasification temperature, and passing the heated solids suspended in a gasification medium through a transfer line reactor, e.g. as described in Specification 625,523, the length of reactor and suspension velocity being correlated to provide for the conversion of most of the medium to the carbon monoxide-containing mixture in the line reactor. Air or other combustion supporting gas is admitted through a line 1 to a heater 10 containing a fluidized mass of coke particles, secondary air being introduced through tuyÞre 5 to prevent reduction of CO 2  formed. Hot gases after passage through a steam superheater 9 may be recycled through the heater as a control in heat generation. Coke at 1800‹- 2200‹F. is withdrawn into a line 13 and conveyed by superheated steam through a transfer line reactor 15 to a generator 20 in which a fluidized bed of residual coke is maintained by product gas and unconverted steam. Further steam CO 2  or air may be supplied through a line 16. About 60-85 per cent of the steam supplied to line reactor 15 may be converted therein, the temperature at the generator inlet being about 1750‹-1850‹F., and the contact time in line 15 and generator being e.g. 2-6 and 4-10 seconds respectively. Solid particles at 1700‹F. return to the heater through a line 24, make-up coke being admitted from a store 28 to the heater, generator or line 15. Hydrocarbons may be supplied to generator 20. Pressures below or above atmospheric may be employed : in synthesis gas production the pressure is preferably the same or slightly higher than the synthesis pressure which may be 700 1b. per sq. in. Non-fluidizable packings may be provided in the heater and generator.
Patent GB-836456-A (GB)
Title: Improvements in and relating to foundation piles
IPC: E02D5/66
Filed: 1957-06-24
Abstract: 836,456. Piles. WEST'S PILING & CONSTRUCTION CO. Ltd., and BIRD, A. G. May 8, 1958 [June 24, 1957], No. 19831/57. Class 68(2) A cast in situ reinforced concrete pile is formed by driving into the ground a thin circumferentially corrugated metal sheath c. The sheath is drawn down by a nose b to which it is rigidly attached and which is driven by a mandrel d. Integral with the nose are reinforcing bars a. Additional lengths of sheathing may be attached by welding as necessary. In a modification the corrugations are longitudinal, (not shown, see Fig. 2). Specifications 576,236 and 724,765 are referred to.
Patent GB-1238417-A (GB)
IPC: C07D311/08
Filed: 1969-04-18
Abstract: 1,238,417. N-(2,2,4,4-Tetrafluoro-1,3-benzodioxanyl) ureas. FARBENFABRIKEN BAYER A.G. 18 April, 1969 [19 April, 1968], No. 19862/69. Heading C2C. [Also in Division A5] Novel N - (2,2,4,4 - tetrafluoro - 1,3 - benzodioxanyl) ureas of the formula in which X is hydrogen, halogen or trifluoromethyl, R 1  is hydrogen, C 1-4  alkyl or C 3-4  alkenyl and R 2  is C 1-4  alkyl or C 3-4  alkenyl are prepared by reacting the appropriate 6-isocyanato-2,2,4, 4-tetrafluoro - 1,3 - benzodioxane with an amine of the formula HN(R 1 )R 2  in the presence of a solvent. 6 - Isocyanato - 2,2,4,4 - tetrafluoro - 1,3 - benzodioxane is made by reacting phosgene with 6- amino - 2,2,4,4 - tetrafluoro - 1,3 - benzodioxane, obtained by reducing the corresponding nitro compound resulting from the nitration of 2,2,4,4 - tetrafluoro - 1,3 - benzodioxane, which is prepared by reacting 2-trichloromethyl phenyl chloroformate in methylene chloride with anhydrous hydrofluoric acid.
Patent GB-804124-A (GB)
Title: Improvements in or relating to internal combustion engines
IPC: F02B37/02
Filed: 1956-06-27
Abstract: 804,124. Charging pumps. BROWN, BOVERI & CIE A. G. June 27, 1956 [Aug. 22, 1955], No. 19880/56. Class 7(2) In an engine in which a turbine nozzle segment 4d of an exhaust gas turbocharger 4 can be fed by air from a charging pump 5 not driven by the engine exhaust, above a predetermined engine power at least part of this air can be passed to atmosphere and to a scavenging and charging receiver 2 by opening valves 6 and 7, whilst by opening a valve 9 the segment 4d can be fed with exhaust gas. Actual modes of operation above the predetermined engine power are (1) with the valves 6, 7, 9 open and a valve 8 closed, (2) with the valves 6, 8 or 7, 8 open and the valves 7, 9 or 6, 9 closed, (3) with the valves 6, 9 open and 7, 8 closed, (4) with valves 7, 9 open and 6, 8 closed and (5) with the valve 7 open and the valves 6, 8, 9 closed. On turbo-charger failure all the air from the pump 5 may be passed to the engine by automatic or manual adjustment of the valves. Valve adjustment may be effected automatically in dependence on the engine speed, load or fuel supply or the delivery pressure of the pump 5.
Patent GB-205576-A (GB)
Title: Improvements in or relating to means for controlling the feed of paper, fabrics, or like webs to cutting machines
IPC: D06H7/02
Filed: 1922-07-20
Abstract: 205,576. Spiess, G. July 20, 1922. Feeding webs.-Relates to web-feeding apparatus for cutting-machines of the kind wherein continuously rotating feed members are mounted on a carriage which, at a certain moment, is moved in a direction opposite to that of the feed so as to produce a temporary stoppage in that part of the web which has passed the feed members and consists in mounting and nc ú uating the feed members so that they serve to draw the web continuously from the reel and at the same time take up the excess web due to the temporary stoppage of the web during the cutting operation. In one form, Fig. 3, the web 4 is drawn from a reel 2 and fed to a cutter 18 by a pair of feed bands or rollers 1 driven by a belt 5 passing round a continuously driven pulley 6, guide rollers 7 and tension pulley 8. The bands 1 and pulley 8 are mounted on slidable carriages 9, 10 connected by links 11 and reciprocated by a lever 20 and rod 19 operated by a cam 17 on a shaft 15 driven by gearing 13, 14 from the shaft 6. The shaft 15 also carries a cam 16 for actuating the knife 18 and the cams 16, 17 are constructed and arranged so that approximately at the time the knife 18 is lowered, the carriages 9, 10 are moved in a direction opposite to the feed at half the normal feed speed so that the part of the web between the feed bands 1 and the cutter is brought to rest while the bands continue to draw the web from the reel at a uniform speed. If desired, instead of bringing the web to rest, its speed could be retarded or its direction of movement reversed by suitably adjusting the speed of the belt 5 and the carriages 9 and 10. Instead of mounting the web feed rollers upon a sliding carriage they may be mounted on an arm pivoted to the frame at a point above or below the rollers and the arm may swing from one side of the vertical to the other or to one side only. The carriage 10 may also be replaced by a pivoted arm. Fig. 7 shows a construction for use when the web is required to pass in a substantially straight path from the reel to the cutter. The feed rollers 1 are carried by a pivoted arm 21 and are driven by a gear 24 on the pivot of the arm and an intermediate gear 25. As the arm is moved away from the cutter 18 by the cam 17 and rod 19, a loop is formed in the web causing a retardation of the web between the rollers 1 and cutter 18 and when the web is thus retarded a pressing bar 28 is depressed to engage the web and hold it at rest during the operation of the cutter 18. During this movement of the arm 21 the speed of the rollers 1 increases and the movement and velocity of the arm are so adjusted that the increase of speed causes the web to be drawn uniformly from the reel 2.
Patent GB-1035041-A (GB)
Title: Apparatus for limiting two members to linear movement relative to each other and a machine tool including such apparatus
IPC: F16H35/00
Filed: 1963-05-20
Abstract: 1,035,041. Machine tool details; grinding. R. C. DREIER. May 20, 1963, No. 19957/63. Headings B3B and B3D. [Also in Division F2] The work-table 12 and a platform 40, carrying a tool head 10, of a machine tool, e.g. a grinder, are movably supported on a frame 13 by pairs of straight line linkages (see Division F2) for linear movement in two mutually perpendicular directions. The frame 13 comprises a pair of vertical walls 15, supporting the work-table 12, and a pair of vertical walls 16, supporting the platform 40, forming a rigid unit with a base 14. The platform 40 carries a tool head 10 which is vertically movable on guides 50 under the control of a hand wheel 52 and screw 53, and the drive from an electric motor 55 on the platform 40 is transmitted by an elbow-like belt and pulley system (see Division F2) to the spindle 11a of the tool head 10. The worktable 12 is moved longitudinally by a hand wheel 41 acting through a chain 42 and sprocket, a pinion 43, and a rack 44. The platform 40 is moved in a direction normal to the direction of movement of the work-table 12 by means of a hand wheel 45 and a screw 46 engaging a nut 47. Table 12 and platform 40 may be power driven, with or without automatic controls.
Patent GB-1104616-A (GB)
Title: Improvements in pumps of the nutating disc type
IPC: F04C9/00
Filed: 1964-09-17
Abstract: 1, 104, 616. Rotary pumps. R. C. FORD, P.J. SKIPPER and J.V. VOBE. Sept. 17, 1964, No. 20021/66. Divided out of 1,103,271. Heading F1F. In a rotary pump of the nutating disc type as disclosed in the parent Specification, a rubber facing or lining 14 (the only Fig. not shown) on one or both sides of a circular disc-like pumping member 1 has a plurality of radial teeth 50 formed thereon to mesh with similar teeth 51 formed on an adjacent conic surface 6, or a lining thereon, of the body of the pump so as to effect positive engagement between said member and said body. The teeth 50, 51 may have a buttress profile in cross-section, inclined flanks 50a thereof being on the leading sides relative to the direction of nutation of the member 1.
Patent GB-461171-A (GB)
Title: Improvements relating to filing cabinets
IPC: B42F17/18
Filed: 1936-07-20
Abstract: 461,171. Drawers. SHANNON, Ltd., and SHANNON, E. F. July 20, 1936, No. 20112. [Class 52 (i)] Drawers of the kind having a hinged follower are supported when withdrawn by a slidable rest 14 mounted in the lower marginal portion of the carcase of the cabinet 1.
Patent GB-737344-A (GB)
Title: Improvements in or relating to hinge fittings
IPC: E05D5/02
Filed: 1953-07-20
Abstract: 737,344. Hinges. PFAFFLI, W. July 20, 1953 [July 25, 1952; Dec. 31, 1952; July 1, 1953], No. 20122/53. Class 65(2). A hinge comprises a pair of pivotally coupled members one at least of which carries a bolt for securing the hinge to one of the parts to be hinged together, and said bolt, which is screwthreaded with a thread pitch not exceeding 1À5 m.m., is screwed either into said part or into said member for axial adjustment of the bolt. As shown in Fig. 1, the upper member 1 of a take-off hinge carries a bolt 2 which passes into a window A at an inclination to the plane of the latter and has a screw-thread end 3 of reduced diameter. The lower hinge member carries a bolt 4 secured to the fixed frame by a transverse pin 7. In a modification the bolt has an intermediate screw-threaded portion of greater diameter. As shown in Fig. 8, the bolt carried by the upper hinge member has a screwthreaded end of the same diameter as the remainder of the bolt, and a bolt 10, which is welded to a metal hinged part, screws into the lower hinge member 11 and is secured in position by a grub screw 13. In a modification the hinge pin screws into the lower hinge member and constitutes the grub screw. The hinge pin may alternatively constitute one element of a bayonet joint, the other element being constituted by the upper hinge member.
Patent GB-692293-A (GB)
Title: Improvements in or relating to tobacco cutting machines
Inventor: MOLINS DESMOND WALTER
IPC: A24B7/14
Filed: 1951-08-27
Abstract: 692,293. Cutting tobacco. MOLINS MACHINE CO. Ltd. Aug. 27, 1951, No. 20193/51. Addition to 588,129. Class 5(i) In cutting a layer of tobacco leaves fed by a bottom conveyer 5 to a mouthpiece 2, lateral pressure is applied to the sides of the layer while it is confined by a top conveyer 7 so that any remaining stems become at least crumpled up and thus get cut crosswise by the reciprocated knife 1. The side pressure may be applied by converging conveyers 6: The conveyers may be arranged to push the compressed tobacco through an elongated oblong mouthpiece; thecutter reciprocating across the longer sides of the tobacco cheese. The tobacco is dropped to the conveyers by the usual shoot with reciprocating side walls 9 to compress the leaves:
Patent GB-414512-A (GB)
Title: Improvements connected with mixing taps
IPC: F16K11/085
Filed: 1933-07-18
Abstract: 414,512. Valves. SANTON, Ltd., and SANDERS, H. C., Somerton Works, Newport, Monmouthshire. July 18, 1933, No. 20204. [Class 135.] Cold water from a supply pipe 7, hot water from a tank 5, heated, for example, by an electric immersion heater as described in Specification 402,146, [Group XI], or a mixture of hot and cold water is supplied to an outlet 6, means being provided for preventing the creation of a part-vacuum in the pipe and thus the reflux of water from the tank to the pipe. A rotatable cylindrical valve member 11 has a flattened face 12 and coacts with a cut-away end 8 of, and a slot 9 in, the pipe 7. In the position shown, cold water flows through the slot 9 and within a hood 13 to the bottom of the tank, hot water being thus displaced to the outlet 6 around the top of the hood. When the valve is turned through 180‹, the slot 9 is closed and the end 8 uncovered, so that cold water flows direct to the outlet. In intermediate positions, hot and cold water are mixed. The valve member 11 fits the pipe 7 loosely, so that air can enter the pipe from the outlet 6 and prevent the creation of a part-vacuum.
Patent GB-639395-A (GB)
Title: High frequency electron discharge apparatus
IPC: H01J25/68
Filed: 1946-07-06
Abstract: 639,395. High-frequency discharge apparatus. STANDARD TELEPHONES & CABLES, Ltd. July 6, 1946, No. 20243. Convention date, Aug. 23, 1945. [Class 39 (i)] [Also in Group XL (c)] In a high-frequency electron discharge apparatus, a first cavity resonator 18 is effectively connected between the cathode C and the control grid G1 of a thermionic valve having a positively-biassed control grid G<1> and a retardation electrode G<2> between the control grid and the anode P. A further cavity resonator 3 tuned to the same frequency is connected between the anode and the cathode, the D.C. potentials on the electrodes being such that when the control grid G1 swings positive due to the field in the first resonator 18, electrons are drawn through the retardation electrode G2 to impinge upon the anode, thereby exciting the further resonator 3, while when it swings negative, electrons are returned towards the cathode. The first three electrodes may operate so as to tend to produce Barkhauser-Kurz oscillations type, but the D.C. potential of the control grid is preferably adjusted to prevent such oscillation, R.F. energy being fed into the exciting resonator 18. A current regulating grid G3 prevents operation with the cathode emission saturated, and forms the effective cathode. An additional resonator 19 is provided between the control grid G1 and the retardation electrode G2, and the R.F. input is introduced symmetrically into the resonators 18, 19 by means of balanced loops 24, 25. The R.F. output is taken off by the loop 10 in the resonator 3, when the apparatus is operated as an amplifier. The apparatus may be operated as -an oscillator by the provision of feed-back between the resonators 3 and 18.
Patent GB-457211-A (GB)
Title: Process for the production of valuable products from solid carbonaceous materials bydestructive hydrogenation
IPC: C10G1/08
Filed: 1935-07-16
Abstract: The destructive hydrogenation of solid carbonaceous materials is carried out in presence of catalysts comprising in combination lead or lead compounds and halogen in the form of free halogen or a substance splitting off halogen or hydrogen halide under the reaction conditions.  The following forms of lead and lead compounds are specified:--finely divided lead, colloidal lead as formed on cathode by electrolysis, lead sulphide formed by treatment of colloidal lead with hydrogen sulphide, carbon disulphide &c., if desired in presence of hydrogen and at 200--500 DEG  C. and 3--20 atmos. pressure; lead glance, schuletite, wulfenite, red lead ore; lead oxides, sulphides, chromates, nitrates, oxalates, acetates and halides.  Halogen compounds specified are ammonium chloride; halogen compounds of the metalloids phosphorus, sulphur, selenium, tellurium, arsenic and antimony, e.g. sulphur monochloride, selenium monochloride or tetrachloride, phosphorus trichloride and tetrachloride, phosphorus diand tri-iodide, arsenic trichloride, antimony trichloride and pentachloride; organic halogen compounds e.g. carbon tetrachloride, chloroform or iodoform, methyl, ethyl, methylene, and ethylene chlorides or the corresponding bromides or iodides, halogen compounds of aromatic hydrocarbons, in particular benzene; metal halides, e.g. iron iodide, which split off hydrogen halide under the reaction conditions may also be used.  The catalysts may be added in part or wholly prior to, during, or after the heating up of the reacting materials.  Other catalysts, comprising metals or metal compounds, e.g. oxides, sulphides, or halides of the metals of the 6th group or of the iron group or of organic tin compounds, may also be present. Bituminous coal finely ground and mixed with 0,2 per cent lead chloride and pasted with an equal proportion of heavy oil obtained in the process is heated up with hydrogen under 200 atmos. pressure to 450 DEG  C., 0,5 per cent lead chloride and 0,8 per cent chlorine in the form of carbon tetrachloride are then added and the mixture passed into a reaction chamber; 93,5 per cent of the carbon contained in the coal is converted into liquid products containing about 6 per cent asphalt.  Specifications 381,367 and 408,255 are referred to.