baber/WOPTO huggingface dataset:
Patent GB-854007-A (GB)
Title: Improvements in or relating to hydraulic transmissions
IPC: F16H45/00
Filed: 1958-08-13
Abstract: 854,007. Hydraulic transmission of power. SVENSKA ROTOR MASKINER A.B. Aug. 13, 1958 [Aug. 16, 1957], No. 26005/58. Class 69 (2). An hydraulic transmission comprises an hydrodynamic torque converter in the form of a number of blade rings arranged to act as pump 70, reaction and turbine members 76, 74, 72, a releasable mechanical direct coupling 94, 96 operable to couple the pump and turbine members, and an hydrostatic coupling arranged in series with the torque converter. The turbine blade rings 72, 74 are arranged on a disc 78 connected to rotate with a shaft 80, which may be the propeller shaft of the transmission, and the reaction blade ring 76 connected to rotate with a shaft 84 which is actuated by a counter-directed torque so as to remain stationary or connected by gearing to the shaft 80. The pump blade ring 70 is connected to a set of clutch discs 94 energizing a second set of discs 96 connected to the shaft 80. The clutch is engaged by hydraulic pressure supplied through ducts 88, 90 acting on a piston 86 to press the discs against a surface 98 on the converter, and disengaged upon release of the pressure in the ducts by the pressure in the converter acting on the other side of the piston. The pump blade ring 70 is rigidly attached to the housing 18 of the coupling which is provided with recesses 26 containing pairs of gears 28, 30 serving as gear pumps, one gear of each pair co-operating with a gear 16 mounted on a shaft 14 located by needle rollers on a journal 22 on the housing 18 and connected to a shaft 10 driven by an engine so as to permit axial and eccentric movement therebetween by a disc 12. A pressure chamber 46 is disposed radially-outwardly of the gears so that hydraulic pressure therein acts on the gears in the opposite direction to the centrifugal force acting on the wheel, and each chamber is connected by a circulation duct 54 and relief valve 56 to a central chamber 44, in turn connected by ducts 62 with the working chamber of the torque converter which is continuously supplied with liquid from a separate pump. The valves 56 are individually adjustable and may be arranged so that their bodies 58 are free or spring-urged inwardly, outwardly or parallel to the axis of the coupling to provide, with the centrifugal force acting in the bodies, different output characteristics to the coupling. The gear pumps may be arranged such that one gear of each pair is spaced further from the centre of the coupling than the other by the depth of the gear teeth, or the axes of the gears may be the same distance from the centre of the housing and the radius of one gear differ from that of the other by the depth of the teeth of the gears. Alternate pumps may be arranged to operate upon opposite rotation to permit the coupling to operate on forward and reverse rotation. Leakage past the sides of the gears is prevented by sealing plates 48 which are urged towards the sides of the gears by springs and/or liquid pressure supplied from the chambers 46. Specification 854,006 is referred to.
Patent GB-1127569-A (GB)
Title: Process of dimerisation and codimerisation
IPC: C07C69/54
Filed: 1967-06-06
Abstract: 1,127,569. Dehalogenating dimerization processes. SOLVAY & CIE. 6 June, 1967 [9 June, 1966; 9 May, 1967], No. 26065/67. Heading C2C. Dimers or codimers of one or more #-halogenated organic compounds of the formula HalCHR-CHR<SP>1</SP>X, in which Hal is halogen, R and R<SP>1</SP> stand for hydrogen or a hydrocarbon group, and X is a nitrile or ester group, are obtained by a dehalogenating dimerization or codimerization process in the presence of an amalgam by adding a solution of one or more of the said #-halogenated compounds in an organic solvent which is inert towards the amalgam under the reaction conditions and which has a dielectric constant measured at 20‹ C. greater than 20 to an alkali or alkaline earth metal amalgam. The organic solvent may be formamide, dimethylformamide, hexamethylenephosphotriamide, dimethylsulphoxide, tetramethylenesulphone, acetamide or a mono- or dialkylacetamide or a mixture of two or more thereof and is suitably employed in an amount of 0À04-10 litres per mole of #-halogenated organic compound. The amalgam employed suitably contains from 0À1 to 10 grams of active metal per kilogram of mercury and water may be added to the reaction mixture, preferably in an amount of 0À05% to 15% of the weight of the solution. A quantity, suitably 0À001-1 mole per mole of #-halogenated compound, of an α,#-dehydrohalogenated derivative corresponding to the #- halogenated organic compound starting material may be added and the process is preferably effected at a temperature of 0-150‹ C. in a continuous manner in conjunction with the production of the #-halogenated organic compound and a mercury-cathode electrolysis for the regeneration of the amalgam. In specific examples the production of adiponitrile, dimethyl adipate and methyl cyanopentanoate is described by the dimerization of #-chloropropionitrile and methyl #-chloropropionate and the codimerization of #-chloropropionitrile with methyl #-chloropropionate respectively; byproducts, e.g. acrylonitrile, propionitrile and methyl acrylate may also be obtained.
Patent GB-518839-A (GB)
Title: Improvements in or relating to means for controlling the flow of granular or like material from bunkers, hoppers or the like
IPC: B65D90/58
Filed: 1938-09-06
Abstract: 518,839. Delivering material from hoppers. KOPPERS COKE OVEN CO., Ltd., and PURVES, G. T. Sept. 6, 1938, No. 26068. [Class 78 (i)] The outlet doors of a whole row or a number of rows of hoppers are operated simultaneously by a common operating mechanism, with means to detach any pair of doors for separate hand operation. Fig. 4 shows the invention applied to the discharge of coal from storage bunkers into moving trucks, in which each hopper 11 is fitted with a pair of co-operating hinged doors 21 mounted on separate pivots 24 connected by toothed geared sectors 26. One door of each pair is connected by linkage 36. 33 to a rock shaft 27 operated by linkage 30 from the doubleacting fluid-pressure cylinder 32. There may be a separate cylinder for each rock shaft or all the rock-shafts may be linked up to a single cylinder. By unhooking the detachable link 36 any door may be disconnected from the rockshaft and the other door of the pair 'then operates by manipulating the hand lever 41 against the action of the counterweight 43. The apparatus is used normally to charge trucks running on rails thereunder, and such trucks may carry contact arms co-operating with the door-opening mechanism to give an audible or visual signal inside the operator's cabin of the truck when, the hopper doors are opened. In some cases an electric interlock may prevent movement of the truck while the hopper doors are open.
Patent GB-1308533-A (GB)
Title: Benzothiazine dioxides as anti-thombotic agents
IPC: A61K31/00
Filed: 1970-05-29
Abstract: 1308533 Antithrombitic medicines PFIZER INC 29 May 1970 [2 June 1969] 26085/70 Heading A5B Compositions for the treatment of thrombosis comprise a carrier and a compound (or a salt thereof) of the formulae: wherein X and Y are H, F, Cl, Br, NO, or C 1-5  alkyl or alkoxy; R is -OR 1 , or -NHR 2  where R 1  is C 1-12  alkyl, phenyl-C 1-3  alkyl and R 2  is H, C 1-8  alkyl, C 2-6  alkenyl, cycloalkyl of up to 8 C atoms, phenyl, phenylalkyl, halogen-, hydroxy-, alkoxy-, thioalkoxy-, alkyl-, trifluoromethyl-, acetyl-, methyl sulphinyl-, methylsulphonyl- or nitro-substituted phenyl, naphthyl, pyridyl or one of a number of specified mono- and di-cyclic nitrogen-containing heterocyclic radicals which may be substituted by halogen, alkyl, alkoxy, nitro or phenyl, R 3  is H, C 1-5  alkyl, C 2-4  alkenyl or phenyl-C 1-3  alkyl, and Z is 0 or S except when R is -OR, when it is oxygen. Tablets and capsules are exemplified and other conventional oral and parenteral forms are referred to.
Patent GB-1472254-A (GB)
Title: Boxes comprising heat-recoverable material
IPC: H02G15/10
Filed: 1973-06-01
Abstract: 1472254 Lids for boxes RAYCHEM SA NV 31 May 1974 [1 June 1973] 26176/73 Heading B8P [Also in fflivision H2] A box 1 has a lid 7, either the box or the lid being of a material of high thermal conductivity, e.g. brass and having a tapered flange 8 and the other member having a peripheral groove 5, the periphery and preferably the whole of the latter member being moulded of a heatrecoverable thermoplastic material, e.g. carbonfilled polyethylene. On closing the lid the member of high thermal conductivity is heated to melt hot melt adhesive 6 in the groove and to cause the groove to shrink to grip the flange. The member of high thermal conductivity may be coated with a thin layer of PTFE to retard corrosion.
Patent GB-869564-A (GB)
Title: Improvements in or relating to steroids and the manufacture thereof
IPC: C07J21/00
Filed: 1959-07-31
Abstract: The invention comprises compounds having the formulae: <FORM:0869564/IV (b)/1> wherein R is b -hydroxy or keto and a process for the preparation thereof which comprises treating a compound of the formula:  <FORM:0869564/IV (b)/2> wherein R1 is an alkyl or aryl group with an alkali metal fluoride.  Illustrative products of the invention are 6a -methyl-11b -hydroxy-17, 21- epoxy- 1,4- pregnadiene- 3,20- dione, 6a -methyl- 17,21- epoxy- 1,4- pregnadiene- 3,11,20-trione and the corresponding 4-pregnene compounds. Specifications 863,779 and 863,780 are referred to.ALSO:Pharmaceutical compositions comprise a compound of the formula <FORM:0869564/VI/1> wherein R is b -hydroxy or keto, together with a pharmaceutical carrier or diluent.  The compositions may be in the forms of pills, tablets, capsules, syrups, elixirs for oral use or in liquid forms adapted for injection.  Specifications 863,779 and 863,780 are referred to.
Patent GB-978347-A (GB)
Title: Improvements in fuel supply systems
Inventor: HERRINGTON WILLIAM LEONARD
IPC: F23D11/28
Filed: 1960-07-28
Abstract: 978,347. Supplying liquid fuel to burners. DOWTY FUEL SYSTEMS Ltd. Sept. 22, 1961 [July 28, 1960], No. 26365/60. Heading F4T. [Also in Division B1] A liquid fuel supply system for a spill burner 1 comprises a pump 5 which, in the normal state, pumps fuel through a filter 6 to the burner and which, in the shut-down state, pumps fuel from the burner and through the filter in reverse direction. During reverse flow solid matter is released from the filter and settles in a removable sump. The change from the normal state to the shut-down state is effected by a rotary valve 8 having (1) a port 19 connecting a pipe 7 from the fuel tank 4 to an inlet connection 12 to the pump, (2) a port 21 connecting the pump delivery pipe 24 to a passage 27, (3) a port 23 connecting the passage 27 to the burner supply passage 2, and (4) a port 22 connecting the spill passage 3 of the burner to a variable spill valve 32. The rotary valve is shown in the normal state. In the shut-down state none of the ports 19, 21, 22, 23 is effective and a further valve port connects the burner supply and spill pasages 2, 3 to a passage 13 connected to the inlet of the pump and a still further valve port connects the pump delivery pipe 24 to the pipe 7 from the fuel tank. The pump is driven by an electric motor which is switched off when the valve is moved to the shut-down position; the inertia of the motor keeps the pump rotating for a short time. Instead of a valve for reversing the fuel flow, the direction of drive of a suitable positive displacement pump may be reversed.
Patent GB-965137-A (GB)
Title: Improvements in or relating to apparatus for cleaning and polishing boots and shoes
IPC: A47L23/06
Filed: 1962-07-10
Abstract: 965,137. Cleaning and polishing boots and shoes. P POPOW. July 10, 1962 [Oct. 4, 1961], No. 26401/62. Heading A4F. A portable apparatus for the cleaning and polishing of footwear comprises a cylinder 1 afixed on to the rotating shaft 3 of a reversible motor enclosed in a casing with a handle, a brush 5 attached to the cylinder 1 and provided with slots in which is received a movable brush 6 and pad 6<SP>1</SP>, one for applying polish and the other for shining, a means within the cylinder 1 for moving the brush and pad 6, 6<SP>1</SP> into or out of the slots, a tube of polish 10 being contained within a recess in the cylinder and held by pivoted clip arrangement 11, 12 and with the open end connected to a flexible conduit 13 through which the polish is delivered to brush 6, a device comprising a slide 14 and a compressor block 16 and means to move them to compress the tube 10 and so squeeze polish from the tube and then retract slide 14 and block 16, a means 37 for opening or closing one end of the conduit 13, a device 38 for automatically signalling the exhaustion of the polish tube 10 and a device 43 for the automatic ejection of the spent tube, and a rigid sleeve 45 for the protection of the brush 5, the arrangement being such that the brush 6 or pad 6<SP>1</SP> are caused to emerge from the slots by the particular direction of rotation of the cylinder 1, the device 14, 16 for squeezing tube 10 being actuated simultaneously with the operation of the polish brush 6. The slide 14 is moved by cables connected by one end to the slide and by the other to two conical pulleys caused to rotate by a system of ratchet wheels, cogs, and two armed lever 22. The compressor block 16 is moved by a toothed wheel 26 which causes movement of toothed wheels 27 actuates racks 28, thus block 16 moving along obliquely toothed rod 24. The brush 6 and pad 6<SP>1</SP> are moved in their respective slots by a series of levers and springs 35, 35<SP>1</SP>, 7, the levers being attached to a disc 33 rotated by the motor, the direction of rotation of which decides which brush or pad shall be moved.
Patent GB-1183075-A (GB)
Title: Tetra-Aryl Pyrrole Photoconductors
Inventor: FOX CHARLES JUNIUS
IPC: C07D207/335
Filed: 1967-06-08
Abstract: 1,183,075. Electrophotography. EASTMAN KODAK CO. 8 June, 1967 [9 June, 19661, No. 26404/67. Heading H1K. An electrophotographic material comprises a supported photo-conductive layer containing a 2, 3, 4, 5 tetra-aryl pyrrole photo-conductor. The photo-conductor may be coated directly on to a support or mixed with a binder. A list of suitable binders is given, the preferred binder being a polyester of terephthalic acid and 2,2-bis-[4-#-hydroxyethoxy)-phenyl] propane. The support is preferably Al-laminated paper but may also be Al, Zn, brass, Cu or galvanized plates or foils, paper, cellulose or polyester coated with Cu 2 I 2 . Pyrylium and thiapyrylium salts are preferred as sensitizers but others are listed. The preferred pyrroles are 2,3,4,5-tetraphenyl pyrrole; 2,3,4,5,-tetra-p-tolyl pyrrole and 2,3,4,5-tetra-p-anisyl pyrrole but others are listed.
Patent GB-323023-A (GB)
Title: Improvements in or relating to ovens for the heat treatment of sheet material
IPC: C23D9/04
Filed: 1928-09-14
Abstract: 323,023. Premix Gas Plants, Ltd., and Docking, A. Sept. 14, 1928. Discharging devices for endless conveyers.-In an oven A for drying enamelled or varnished metal sheets or plates used for colour printing, of the kind in which the sheets are supported vertically, during their travel through the oven, by recessed supports f mounted on an endless conveyer c, there is provided, adjacent the discharge end, a series of endless bands e which project into the recesses in the supports f to receive and remove the treated sheets. The latter are fed by the bands e between rubber-covered rollers G, G<i>, by which they are projected on to a stacking device H. The supports f are each formed of a length of wire bent to the form shown in Fig. 2 and rivetted at its ends to projections on the chains c. A series of conveyer bands similar to those provided at the discharge end of the oven, may be employed for feeding the sheets from the varnishing machine or the like on the conveyer c.
Patent GB-808472-A (GB)
Title: Etching
IPC: C23F1/42
Filed: 1957-08-21
Abstract: 808,472. Etching. DOW CHEMICAL CO. Aug. 21, 1957 [Aug. 27, 1956], No. 26444/57. Drawings to Specification. Class 100(2) An etching fluid comprises a mixture of (1) an aqueous solution! containing nitric acid and from 0.1 to 2.0 per cent by weight of an alkylbenzene suphonate or sulphonic acid having from 3 to 18 carbon atoms in the alkyl portion or of an alkylnaphthalene sulphonate or sulphuric acid having from 3 to 18 carbon atoms in the alkyl portion and (2) a water-immiscible organic liquid substantially unreactive with the nitric acid. The fluid is used for etching by paddle-splashing photoengraving printing plates made of magnesium, magnesium base alloys containing at least 90 per cent magnesium, zinc, or zinc base alloys containing at least 90 per cent zinc, and results in negligible undercutting. The nitric acid is present in from 3-20 per cent, preferably 5-12 per cent, by weight, and is added as to 42‹ Baume acid. Example of the sulphonates or sulphonic acids are:- decyl-, dodecyl-, or tetradecylbenzene sodium sulphonate; propyl-, amyl-, diamyl-, or dodecyl-naphthaline sodium sulphonate; corresponding sudphonic acids; calcium dodecylbenzene sulphate; decylbenzene sulphopropionic ester. Examples -of the water-immiscible organic liquid are:-petroleum fractions of boiling point 70‹-390‹C., being mixtures of mostly saturated hydrocarbons of paraffin series having 6-18 carbon atoms, e.g. gasoline, benzine, kerosene, coal oil and lubricating oils; also turpentine, perchlorethylene, and diethylbenzenes. The liquid proportion is 1-14 per cent, preferably 4-10 per cent- Octyl alcohol may be added as a defoamer. Before etching, the plate may be de-scummed with a soultion comprising 12 ounces potassium hydroxide and 4 ounces potassium permanganate per gallon. The paddle speed is 550-700 r.p.m. and the bath temperature 72‹F. Specification 725,110 is referred to.
Patent GB-278725-A (GB)
Title: Improvements in current rectifying systems
IPC: H02M7/06
Filed: 1927-10-06
Abstract: 278,725. Compagnie Franþaise pour l'Exploitation des ProcÚdÚs Thomson-Houston. Oct. 6, 1926, [Convention date]. Void [Published under Sect. 91 of the Acts]. Vapour and vacuum or low-pressure apparatus, arrangements of; commutator switching arrangements.-Direct current at different voltages for charging different batteries of accumulators, for example, is obtained form a source of alternating current by an arrangement of transformers and " Tungar " or other valves, commutator switches or other rectifiers. In the arrangement shown in Fig. 1, an incandescent cathode valve 1 is associated with either the primary winding 4 or the secondary winding 5 of a transformer T, connected to the A.G. source S, in accordance with the setting of the contacts 18, 19, 20 of a changeover switch. With the contacts closed in the upper position D.C. is supplied to the terminals 14, 15 at a voltage corresponding to the turns between the points 7, 9 on the winding 4; with the contacts closed in the lower position, D.C. is supplied to the terminals 16, 17 at a voltage corresponding to the turns between the points 11, 27 on the winding 5. These voltages may be regulated by moving the tapping points 9, 27. In a modified arrangement, the connections are simplified to enable a single pole change-over switch to be employed. In a further arrangement, simultaneous supply of currents at different voltages is afforded by using two valves, one associated with the transformer primary, and the other with the transformer secondary. Fig. 4 shows a further arrangement in which current is supplied simultaneously to D.C. terminals 14, 15 and 16, 17 through a valve having two anodes 3<1>, 3<11> associated respectively with secondary windings 5, 4 of a transformer T which is provided with a third secondary winding 6, 7 for supplying heating current to the cathode 2.
Patent GB-897395-A (GB)
Title: Multi-stage polymerization process
Inventor: SQUIRE EDWARD NOONAN
IPC: C08F2/02
Filed: 1959-08-01
Abstract: Monomeric or partially polymerized vinyl-containing organic compounds are partially or further polymerized in a non-compression preforming mould in the presence of a catalyst at between room temperature and 95 DEG C. to produce a performed article which will retain its shape at room temperature, and the polymerization is completed in a compression mould at a pressure of up to 1,000 p.s.i.  Acrylate and alkacrylate monomeric or partially polymerized compounds, particularly methyl methacrylate syrups, having a viscosity of between 0,1 and 150 poises at 25 DEG C. are preferred.  Temperature is a critical factor during the preform stage and should preferably be between 45 DEG  and 50 DEG C. while the final polymerization should preferably be effected at between 80 DEG  and 150 DEG C.  In one example, an initial monomer-polymer slurry is prepared from methyl methacrylate 120, polymethyl methacrylate 120 and a ,a 1-azodiisobutyronitrile (catalyst) 0,2 lbs.  When a viscosity of 20 poises is attained, n-propyl sulphite 0,8 lb. may be added, if desired.  In other examples, benzoyl peroxide, t-butyl peracetate, 2,4-dichlorobenzoyl peroxide and dimethyl aniline are used as catalysts.  U.S.A.  Specification 2,471,959 is referred to.ALSO:Monomeric or partially polymerized vinyl-containing organic compounds are partially or further polymerized in a non-compression preforming mould in the presence of a catalyst at between room temperature and 95 DEG C. to produce a preformed article which will retain its shape at room temperature, and the polymerization is completed in a compression mould at a pressure of up to 1000 psi. Acrylate and alkacrylate monomeric or partially polymerized compounds, particularly methyl methacrylate syrups, having a viscosity of between 0,1 and 150 poises at 25 DEG C. are preferred. Temperature is a critical factor during the preform stage and should preferably be between 45 DEG  and 50 DEG C. while the temperature of the final polymerization should preferably be between 80 DEG  and 150 DEG C.  When preforms with glass fibre reinforcement are to be made, the reinforcement is inserted before the first stage polymerization, e.g. by placing a fibre mat in the preform mould and then adding the syrup with a "squeegeeing" action.  Metal screens, ferrous or non-ferrous, may also be used as reinforcement.  U.S.A. Specification 2,471,959 is referred to.
Patent GB-643743-A (GB)
Title: Improvements relating to the preparation of catalysts containing mercury and their use in the preparation of vinyl halides
IPC: B01J31/06
Filed: 1947-10-01
Abstract: Vinyl halides are prepared by passing acetylene and hydrogen halide in the gaseous phase over a catalyst of a mercury salt on a porous carrier and in the presence of a synthetic polymeric substance the polymeric substance being merely adsorbed by the same carrier as the mercury salt or used instead of another porous carrier as the support for the porous salt.  In an example, an equimolar mixture of acetylene and hydrogen chloride is passed at 30 litres per hour over pumice stone which has been impregnated with polymethacrylamide and mercuric chloride-reaction temperature is 150 DEG  C.  Other polymeric materials mentioned are salts of polyacrylic acid, polyvinyl alcohol, polycaprolactam, polyadipamide, and hexamethylene diamine and polyamine resins. The mercury containing catalysts may contain other metal salts. Active carbon and silica gel are further examples of porous carriers.ALSO:A catalyst for the preparation of vinyl halides comprises a supported mercury salt and a synthetic polymeric substance, the latter being adsorbed by the support or itself forming the support.  Specified polymeric substances include salts of polyacrylic acid, polyvinyl alcohol, polymethacrylamide, polycaprolactam polyamide from adipic acid and hexamethylene diamine and polyamine resins.  Other metallic salts may be present additionally to the mercury salts, e.g. cupric chloride.