baber/WOPTO huggingface dataset:
Patent GB-1422517-A (GB)
Title: Process for the production of benzotrifluoride
IPC: C07C22/08
Filed: 1974-12-09
Abstract: 1422517 Production of benzotrifluoride LONZA Ltd 9 Dec 1974 [21 Dec 1973] 53050/74 Heading C2C The invention comprises a process for the production of benzotrifluoride by the reaction of benzotrichloride with hydrogen fluoride wherein benzotrichloride is reacted in the presence of a catalyst consisting of a mixture of aluminium chloride and active carbon, with the 1À0 to 1À1 fold stoichiometric amount of hydrogen fluoride at an absolute pressure of 20 to 45 ats. and at a temperature of 85 to 100 C., with a mixing up which is characterized by a Reyholds number of between 65,000 and 100,000. The catalyst is preferably in a weight ratio of 1 : 2À5 to 1 : 3À0 of aluminium chloride to active carbon. The benzotrichloride is, after introduction into the reactor, preferably mixed with phosphorus trichloride in an amount of up to about 1% by weight, referred to the weight of starting material.
Patent GB-1526760-A (GB)
Title: Radiation detectors
IPC: G02B27/00
Filed: 1975-12-30
Abstract: 1526760 Radiation detectors XEROX CORP 30 Dec 1975 53122/75 Heading G1A A radiation detector comprises an envelope 10, having surface means for diffusely reflecting radiation towards the interior, and having an elongate narrow window 11 for receiving radiation and at least one sensor 12 viewing the interior. For document reading Fig. 2, a second window 114 allows light (e.g. a laser beam) to pass straight through the envelope 110, and out by the first window 111 which also admits light reflected from the document 115. A plurality of sensors (212A, 212B), Fig. 3 (not shown) may be disposed symmetrically about a central region of the length of the first window (211). To improve uniformity of reception over the length of the window, the window may have a non- uniform width, or the sensor may be partly shielded from radiation entering the central region of the window. The envelope 10 may consist of, or be coated with, diffusely reflective material, the window 11  being formed as a slot; or the envelope may consist of transparent material coated inside or outside, the window being formed as a gap in the coating.
Patent GB-1449609-A (GB)
Title: Cooling apparatus
IPC: F25D17/06
Filed: 1972-11-17
Abstract: 1449609 Refrigeration STAR REFRIGERATIONLtd 12 Nov 1973 [17 Nov 1972] 53128/72 Heading F4H Apparatus for cooling articles comprises a housing 12 containing a support 13 for articles 14, a gas circulating fan 15 and a gas cooler 8 located adjacent the articles whereby the gas stream contacts both the articles and the air cooler simultaneously. As shown, the housing 12 consists of an insulated tunnel containing a conveyor belt 13, for supporting articles of food 14. The fan 15 may produce a gas flow transverse to, parallel to, or at an acute angle to the conveying direction. The housing may alternatively be a box-type housing with a fixed support. The gas may be air or nitrogen.
Patent GB-1356458-A (GB)
Title: Superconductor coils
IPC: H05H7/04
Filed: 1971-11-16
Abstract: 1356458 Superconductor coils; particle accelerators SIEMENS AG 16 Nov 1971 [16 Nov 1970] 53242/71 Headings H1P and H1D Normally conductive spacers, arranged between adjacent turns of a superconductive winding from which they are insulated, are connected to form a protective inductive circuit. As shown, Fig. 1, a quadrupole magnet comprises four elongate saddle-shaped coils 1 to 4 arranged on a non-magnetic steel carrier 5. Each coil comprises an elongate core 10 of noble-steel or plastics round which are wound four winding sections 6 to 9 separated by wedge shaped spacers 11 to 16. Each winding section comprises a plurality of turns of superconductor tape, the number of turns being greatest in the outer section 9 and least in the inner section 6. The sections are made up to the same cross-section by means of layers of plastics tape inserted in the winding. The wedge shaped spacers 11 to 16 are joined at each end by bow shaped connectors 18 20, 22 (17, 19, 21) to form three closed loops which absorb energy from the winding if it goes normal. Each spacer is insulated from the carrier 5 by a folded plastics tape placed over its edge, and if necessary this tape can cover the sides of the spacer to insulate it from the superconductor winding. The coils may be produced by winding superconductor strip and plastics tape round the core 10 to produce section 6, placing the spacers 11, 12 against the straight edges and then continuing winding to produce section 7. The other spacers and coil sections are similarly applied to produce the saddle shaped coil. The connectors are of copper soldered to the spacers. The superconductor strip may comprise a tape having a Nb-Sn layer covered with a thin stabilizing layer of Cu. Instead of being connected to form a plurality of loops the interconnections between the spacers may be arranged so that a single loop is formed, Fig. 3 (not shown). An ohmic resistor may be connected in such a circuit and positioned externally of the liquid helium or externally of the cryostat. A switch may be provided to disconnect the current supply to the superconductor coil in response to the voltage increase produced when part of the coil goes normal. The coil may also be constructed of superconductor wire.
Patent GB-1375916-A (GB)
Title: Carbon composite friction material
IPC: C04B35/83
Filed: 1972-11-17
Abstract: 1375916 Carbon composite BENDIX CORP 17 Nov 1972 [16 Dec 1971] 53262/72 Heading C1A [Also in Division F2]  A brake disc is made from a composite material comprising a porous carbon carrier into which is impregnated a metallic material or an inorganic non metallic material having a thermal capacity by volume greater than that of the carbon substrate. Preferably the thermal capacity of material is greater than that of carbon both by volume and by weight. The exemplified materials are Be, BeO, Li 2 O and B 4 C, and cryolite, beryllium carbide and boron are mentioned. The material used preferably has a melting point, and most preferably both melting point and boiling point, lower than the maximum temperature to which any disc made from the composite is expected to be exposed during use.
Patent GB-1319888-A (GB)
Title: Single or double acting pump for discharging a liquid or a viscous substance
IPC: F04B49/12
Filed: 1971-11-17
Abstract: 1319888 Reciprocating pumps PAPILLON ETAB 17 Nov 1971 [23 Nov 1970] 53292/71 Heading F1A [Also in Division H1] A pump actuated by a solenoid or by a hydraulic or pneumatic motor controlled by a solenoid has a pumping member of adjustable stroke, and incorporates a switch controlling the solenoid, so that on excitation of the solenoid, the pumping member performs a forward stroke and a return stroke, and then stops. In Fig.1, the doubleacting pump piston 2 is reciprocated by actuating diaphragm 14, a solenoid controlling a distributing valve for alternately connecting actuator passage 24 to fluid pressure and exhaust, and passages 7 and 9 to inlet and discharge points. Piston rod 17 is connected to helically grooved member 18, the grooves 26, 27 of which are engaged by followers 29 on a sleeve 28 splined for axial movement relative to a sleeve 30, which is rotatable by calibrated knob 34 to adjust the axial position of sleeve 28 relative to switch control sleeve 50 and hence the ' piston stroke. Sleeve 30 is locked in its angular setting by spring-loaded balls 39 engaging grooves in housing 40. A switch controlling the solenoid has spring-loaded contact balls 47 which, in the switch-closed position shown, engage conducting member 48 on insulating bush 49, which is slidable on sleeve 50. At the end of the leftward stroke with pressure fluid entering connection 24, flange 55 on sleeve 28 abuts flange 51 on sleeve 50, and compresses spring 54 until bush 49 moves to the left, causing balls 47 to move on to the insulating surface of bush 49, thereby opening the switch to cause the return stroke. Connection 24 is then connected to exhaust, and spring 20 returns the diaphragm and piston to the right, spring 53 returning the switch to its closed position at the end of the rightward stroke. The pump then remains stationary until the solenoid is excited again. For single-acting operation, connections 7 and 24 may be alternately connected to the pressure fluid source by the solenoid, and spring 20 may be omitted. The pump may be mounted by lugs on housing portion 40. In Fig. 4 diaphragm 61 is the pumping member, and valved inlet and outlet connections 63, 64 are provided. The diaphragm is reciprocated by a solenoid acting via spring 96. Flange 97 on sleeve 73 opens the switch at the end of the leftward stroke, by engaging spring 98 against the left-hand end of sleeve 91 to move sleeve 91 to the left, thereby moving contact balls 87 out of recesses in contact member 89 and into grooves 92 in the insulating material of sleeve 91. Knob 83 adjusts the axial setting of sleeve 73, balls 87 holding it in position. Spring 96 biases the switch closed.
Patent GB-1470330-A (GB)
Title: Method of producing 1-n-l- - alpha-hydroxy-ypsilon-aminobutyryl -xk-62-2
IPC: A61P31/04
Filed: 1974-12-12
Abstract: 1470330 Preparation of derivative of antibiotic XK-62-2 KYOWA HAKKO KOGYO CO Ltd and ABBOT LABORATORIES 12 Dec 1974 [12 Dec 1973] 53781/74 Heading C2C The antibiotic I or a non-toxic salt thereof, is prepared by (i) reacting an antibiotic II with an acylating reagent of formula CH 3 OCOR 3 , C 2 H 5 OCOR 3 , R 4 CH 2 COR 3  or R 4 CH 2 COOH (in which R 1  and R 2  are each H, OH, NO 2 , Cl, Br, I, 1-5C alkyl or 1-5C alkoxy; R 3  is Cl, Br or I and R 4  is H, Cl, Br or I) to give a protected amino compound III (in which Y 1 , when taken separately, is H and Y 2  is a group of formula CH 3 OCO-, C 2 H 5 OCO- or R 4 CH 2 CO-; or Y 1  and Y 2  together represent phthaloyl); (ii) reacting the compound III with an acylating agent of formula (in which Z is Cl, Br, I, OH or a group of formula to produce a compound IV and (iii) removing the protecting groups from the compound IV to give the compound I and optionally forming a salt derivative.
Patent GB-1484939-A (GB)
Title: Method of making brick slabs
IPC: F26B21/00
Filed: 1974-12-12
Abstract: 1484939 Method of making brick slabs INST FUR ZIEGELFORSCHUNG ESSEN EV 12 Dec 1974 [13 Dec 1973] 53786/74 Heading E1B Brick slabs are formed of moist ceramic material with a plurality of apertures extending therethrough, the apertures being so dimensioned and relatively disposed that the slab can be considered as comprising a plurality of juxtaposed parallel tubes resting against each other with each tube having throughout its periphery a substantially constant wall thickness and drying the slab with warm air so that there is uniform drying of all the tube walls at any particular crosssection of the slab at any time in the process. The slab may be encased to provide drying flow over the outer surface or slabs may be stacked one on another or coated with vapour impervious layer so that all drying takes place through the bores. The coating may be plastic@ sheet, oil film, lacquer or glue.
Patent GB-1148775-A (GB)
Title: Improvements in or relating to can openers
Inventor: DIXON VERNON GERALD RALPH
IPC: B67B7/70
Filed: 1966-12-01
Abstract: 1,148,775. Can openers. METAL BOX CO. Ltd. 30 Nov., 1967 [1 Dec., 1966], No. 53793/66. Heading B8D. A can opener which cuts only through the outer thickness of the metal of the bead of a can and comprises in one form a holder 10 with a bracket 11 carrying a traction wheel 16 and a cutter wheel 12, as described in Specification 1,027,624, is modified by the inclusion of a serrated or knurled surface 100 on or adjacent to the cutting edge of the cutter wheel. Alternatively the cutter is a fixed blade used in conjunction with two traction wheels in tandem similarly modified by the edge of the blade being serrated or knurled.
Patent GB-1335713-A (GB)
Title: Device for correcting the deflection of an endless belt
IPC: B65G39/16
Filed: 1970-11-12
Abstract: 1335713 Feeding sheets by endless conveyers RICOH KK 12 Nov 1970 [31 March 1970] 53798/70 Headings B8A and B8R Correction of deviation of an endless belt 215 from its normal path of movement is effected by a tensioning roller 214 loosely mounted in a slotted U-shaped member 216 and supported by arms 212, 213 suspended from pivoted levers 208, 209. Detection rollers 221, 222 are provided with lobes 225, 226 which, when one or other of the rollers is rotated by the belt 215, respectively engage the adjacent end of the roller 214 which tilts and restores the correct tracking of the belt. Brake means 227, 228 limit the rotation of the detection rollers 221, 222. If an exposure device is provided between rollers 204, 205 the arrangement constitutes an exposure section of a copying machine. In Fig. 6b, a brake belt 229 operates only after rotation of the associated detection roller has commenced. The brake may be in the form of a stop ortion 317a of a support 317 which moves when a lobed detection roller 222 is rotated, Fig. 8. In Fig. 9, a lobed roller 386 for engagement with a belt roller 383 is separate from a detection roller 384. The endless belt may be incorporated in sheet feed apparatus.
Patent GB-1195876-A (GB)
Title: Rake Head for a Haymaking Machine of Tedder.
IPC: A01D78/10
Filed: 1967-11-28
Abstract: 1,195,876. Rake head haymakers. BUCHER-GUYER A.G. MACHINENFABRIK. 28 Nov., 1967 [1 Dec., 1966], No. 54009/67. Heading A1F. A rake head carrying tines 9 for a haymaking machine has a rotating assembly with pivotally journalled supports 8 which carry the tines 9, the pivoting motion of the tines being drivingly controlled over a zone of the circulating track in a rearward sense, wherein each of the spring tines is bent so that the concave side thereof is inwardly directed towards the rake head. The structure of the rake head assembly is such that the radial distance from the axis of the rake head to the apex of the bent tines is greater than to the position at which the tine is clamped. The length of the end member 19 corresponds to no more than one-third of the overall length of the tine.
Patent GB-1203712-A (GB)
Title: Improvements in or relating to gas turbine engine
Inventor: WILDE GEOFFREY LIGHT
IPC: F02K3/065
Filed: 1968-02-07
Abstract: 1,203,712. Gas turbine ducted fan engines. ROLLS-ROYCE Ltd. Feb.4, 1969 [Feb.7, 1968; Nov. 16, 1968], Nos. 5981/68 and 54489/68. Heading F1J. A gas turbine ducted fan engine comprises independently rotatable IP and HP compressors, combustion equipment, and HP and IP turbines drivingly inter-connected with the respective compressors, a single-stage front fan and a singlestage rear fan, the compressors, combustion equipment and turbines being located within an inner flow duct and the fans being disposed within a fan duct and being driven by a turbine of the engine. The engine shown in Fig. 1 comprises an IP compressor 10, HP compressor 12, combustion equipment 14, HP turbine 16, IP turbine 20 and LP turbine 18 all disposed in flow series in an inner main flow duct, the HP turbine driving the HP compressor through shaft 26 and the IP turbine driving the IP compressor through shaft 22. The LP turbine 18 drives a front fan 28 through shaft 30 also a rear fan 38 which is mounted radially outwardly of the turbine blades. The front and rear fans are disposed within a fan duct 32 which is supported from the casing of the main flow duct by guide vanes 36, 40 which vanes are disposed sufficiently downstream of the associated fan blades 28, 38 to ensure that rotor wakes are dispersed before the air flows through the guide vanes. A portion of air from the front fan passes into the main flow duct. In Fig. the engine comprises IP compressor 114, HP compressor 115, combustion equipment 116, HP turbine 117, IP turbine 118 and an LP turbine which is in the form of two separate turbines 119, 120. The first LP turbine 119 drives a front fan 113 through shaft 121 and the second LP turbine 120 drives a rear fan 125 through a driving connection 124 at the tips of the turbine blades. The front and rear fans 113, 125 are disposed within a fan duct 112 and stator guide vanes 127 are disposed downstream of the rear fan 125. A series of helical vanes 126 are disposed within the fan duct so that the air-flow from the front fan has some whirl when it enters the rear fan. The fan duct may be made as a monocoque structure which may be connected direct to aircraft structure, vanes 126 carrying loads from the main casing. Variable inlet nozzle guide vanes may be provided at the inlet to the LP turbine.
Patent GB-544926-A (GB)
Abstract: 544,926. Fungicidal and like preparations. APPLEBEY, M. P., RAYNER, J. W. R., ARNOLD, M. H., M. PERRY, W. E., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Oct. 30, 1940, No. 15845. [Class 81 (i)] Mixtures suitable for the dressing of seeds comprise sulphur nitride together with one or more of the ammonium salts of phosphoric, sulphuric and sulphamic acids and/or gypsum. Non-ammonium phosphate with gypsum are preferably used and antidusting and sticking agents e.g. spindle oil, chlorinated diphenyl, chlorinated diphenyl oxide, aryl phosphates may also be added. Free sulphur, iminosulphur and ammonium chloride are ingredients also present according to an example. The mixtures are stated not to be liable to detonation. Specifications 542,523, 542,912 and 544,577 are referred to.
Patent GB-1408940-A (GB)
Title: Non-aqueous electric current-producing primary and
IPC: H01M10/0566
Filed: 1972-11-27
Abstract: 1408940 Primary and secondary cells POWER CONVERSION Inc 27 Nov 1972 [2 Dec 1971] 54753/72 Heading H1B A substantially non-aqueous secondary or primary cell includes a negative electrode selected from the alkali metals and alkaline earth metals more electropositive than zinc in the electrochemical series, a positive electrode insulated therefrom, and a liquid electrolyte comprising liquid SO 2  under pressure mixed with an anhydrous liquid organic compound, the SO 2  comprising 60 to 90% by weight of the liquid electrolyte, and a solute in the form of a salt of the negative electrode metal dissolved in the electrolyte and wherein the water content of the cell is less than 50 parts per million. The SO 2  is maintained in the liquid state by providing an above atmospheric pressure, referred to 22‹ C. In the liquid electrolyte solution the liquid SO 2  is preferably 65-85% by weight thereof. The organic compound forming the remainder of the electrolyte may be selected from nitriles, dimethyl sulphoxide, amides, pentacyclic esters, lactones, N-methyl 1,2-pyrolidone, amines, ethers, secondary amine halides and esters such as methyl, ethyl or phenyl acetate or formate or methyl benzoate. The organic compound may be a mixture of, for example, 80-60% by volume of methyl formate, methyl acetate, ethyl formate or ethyl acetate together with 20-40% by volume of propylene or ethylene carbonate. The solute dissolved in the electrolyte has a metallic ion of the same metal which forms the anode and an anodic ion which may be a chlorate, perchlorate, thiocyanate, cyanide, rhodanide, iodide, fluoride, chloride, bromide, sulphide, sulphate, picrate, fluoborate, hydride or borohydride. A preferred example is IM LiBr. The negative electrode (anode) may be formed entirely of alkali or alkaline earth metal, e.g. Li, K, Ca, Ba or Na or this metal may be pressed into a conductive but inert screen of Ni, Cu, Ag or Fe. The positive electrode (cathode) comprises a conductive metal or non-metal inert to the electrolyte, e.g. carbon, boron, Pt, Zr, Ta and preferably a finely divided material such as C, Ni, Al, Ag, Cu, Pt mixed with paper, glass or asbestos fibres, plastics powders together with a fluorocarbon resin binder such as polytetrafluoroethylene or chlorotrifluoroethylene. A separator may be disposed between the electrodes which comprises fibrous synthetic materials such as a copolymer of vinyl chloride and acrylonitrile, polyamide polymers, copolymers of polyvinyl alcohol and polyvinylchloride, polyacrylate esters and porous polyethylene. In an example in a cell including 80% by weight SO 2  in the electrolyte a pressure of 45 p.s.i. gauge is employed to maintain the SO 2  in the liquid state and in a cell including 60% by weight SO 2 , 25 p.s.i. gauge is required. Examples are given in which respectively the anodes are K, Ca, Ba, Li and Na, the organic compound dimethylsulphoxide, ethyl formate and propylene carbonate, isopropylamine, ethylene diamine and methyl acetate and the solute is KBr, Ca(ClO 3 ) 2 , BaBr 2 , LiF, NaBr.
Patent GB-1157918-A (GB)
Title: Automatic Type Composition
IPC: B41B19/00
Filed: 1967-12-04
Abstract: 1,157,918. Printing-surfaces; printing-processes. RADIO CORPORATION OF AMERICA. 4 Dec., 1967 [23 Dec., 1966], No. 55049/67. Headings B6C and B6W. Printing- surfaces.-A plate, e.g. of aluminium or zinc, is coated with toner particles, e.g. polystyrene and carbon black, which are fused to the plate in design areas to form a printing plate by means of a beam of radiant energy, e.g. a laser beam, the beam and plate being moved relatively to trace out images. In one form, the beam is stationary and the plate is moved by and X-Y positioning mechanism under control of an electronic data processor. For the spaces between characters, the beam is cut off by a shutter controlled by the processor. In another form, a rotating mirror carries the beam to scan the plate while at the end of each scan-line the plate is moved a step transversely to the line. In another form, the shutter is an electrooptical shutter and the beam is deflected by an electro-optical deflector. After fusing, the surplus toner is removed. For an offset printing plate, the plate is hydrophilic and the toner hydrophobic and the plate is immersed in water and then in oil-base ink. For a relief plate, the toner is acid-resistant and forms an etching resist. For an intaglio plate, the plate is acidresistant and the toner is a catalytic toner to facilitate etching. Printing-processes.-The above-described process can be used to print directly by coating a paper sheet with a toner, such as wax and carbon black, having a lower fusing temperature than the kindling temperature of the paper.
Patent GB-1395979-A (GB)
Title: Printing of pile fabrics
IPC: B41F13/40
Filed: 1972-12-04
Abstract: 1395979 Fabric-printing apparatus STALWART DYEING CO Ltd 13 Nov 1973 [4 Dec 1972] 55806/72 Heading B6C A printing machine comprises one or a plurality of printing couples each of which comprises a printing cylinder 19 having a continuous impervious surface partly covered with absorbent material 23 which is continuously charged with dye liquor and an impression cylinder 21 which are pressed towards each other by means acting on trunnions 29 of the printing cylinder and back-up rolls 31 acting at the centre of the impression cylinder. The machine is used for printing pile fabric which may be first given a background dye then fed to the machine by a stentor and after printing passes into a steam cabinet with an horizontal section leading to a chamber in which the fabric hangs in vertical festoons.