baber/WOPTO huggingface dataset:
Patent GB-633840-A (GB)
Title: Improvements in or relating to voltage stabilising systems
IPC: H02J7/12
Filed: 1946-10-26
Abstract: 633,840. Automatic voltage control systems; rectifying. AUTOMATIC ELECTRIC LABORATORIES, Inc. Oct. 26, 1946, No. 31806. Convention date, Oct. 26, 1945. [Classes 38 (ii) and 38 (iv)] [Also in Group XXXIX] In a system for regulating a direct-cufrent load supplied from an alternating current source variations in the load output are compensated by a feed-back circuit comprising a saturable reactance amplifier, which controls the impedance in circuit with the alternating current source. A saturable reactor 10 provided with A.C. windings 10a and 10b is connected in series with the windings 7a and 7b of a transformer 7 fed by an A.C. source 1. The transformer 7 feeds a rectifier 8, the D.C. output of which is developed across resistors 41 ... 44. Part of this output is applied to the D.C. windings of a control reactor 11, the difference between the magnetic flux thus produced and that produced by a permanent-magnet 12 serving to vary the impedance of A.C. windings arranged on the reactor 11 and excited by the transformer 7. A rectifier 17 associated with the exciting circuit of reactor 11 develops a D,C, control voltage for a saturable reactor 13, the A.C. windings of which are connected to a further rectifier 18, which controls a reactor 14. Further rectifiers 19, 20 and reactors 15, 16 are provided to form the saturable reactance amplifier 13 ... 20, the resulting amplified D.C. being applied to the D.C. windings of the reactor 10 to control the impedance of the A.C. windings 10a and 10b. Thus any variation in D.C. load produces a change of magnetic flux in the control device 11, and a variation of the impedance of the A.C. windings so as to vary the D.C. output from the amplifier 13 ... 16 and adjust the impedance of A.C. windings 10a and 10b, to compensate for the variation in the load. Specification 538,077 is referred to.
Patent GB-758258-A (GB)
Title: Improvements in or relating to devices for extending socks during drying
Inventor: TUCKER GORDON ERNEST
IPC: D06F59/06
Filed: 1953-11-17
Abstract: 758,258. Drying socks. CRAYONNE, Ltd. Nov. 8, 1954 [Nov. 17, 1953], ], No. 31872/53. Class 34(1). A device for extending socks during drying has a leg portion 10 of bars 12, 13, 14, hooks 17, 18 and an off-set projection 19 provided with a slot 21, and a foot portion 11 with limbs 23, 24 and hinged to the leg at 26, the flat end part 34 of limb 23 being slidable through slot 21 and the parts being of a resilient material such as polystyrene, so that the foot portion is resiliently expansible in depth.
Patent GB-843961-A (GB)
Title: Improvements in or relating to labelling machines
Inventor: FAIREST DEREK HOWARD
IPC: B65C9/36
Filed: 1957-10-12
Abstract: 843,961. Labelling machines. FAIREST Ltd., M. Dec. 4, 1958 [Oct. 12, 1957], No. 31932/57. Class 73. A labelling arm for a labelling machine comprising an upright tube 1 carries at its lower end a body label pad 6 with suction openings 7 in its face, a neck label pad 9 with suction openings 10 carried on a transverse pivot 11 through two pairs of links 12, 14, the pair 12 extending downwards to a transverse pivot 13 that is fixed with respect to the tube 1 and the other pair 14 extending upwardly to a transverse pivot 15 slidable lengthwise in slots 16 in the tube 1, with compression springs 17, 18 inside the tube to bear from above and below on the slidable pivot 15, together with a plunger 20 within the tube adapted to be depressed to move the slidable pivot towards the fixed pivot so as to urge the pivot 11 carrying the neck label pad 10 away from the tubular arm. A bottle 31 is propelled in the machine by V-jaws 32 and a body label 29 is pressed by the pad 6 to the bottle. At the same time a roller 21 mounted on the plunger 20 encounters a cam 22 so that the plunger 20 is depressed and the neck label pad 9 is carried to the neck of the bottle. The pivot 11 enables the pad 9 to swivel to the precise angularity of the neck to apply the neck label 30. The labels are held by suction to the opening, 7, 10 until they have been caused to adhere to the bottle, the gummed sides of the labels being pressed to the bottle by pressure pads (not shown) after which the plunger 20 is released. When the plunger is not depressed the internal springs 17, 18 bring the slidable pivot 15 to its uppermost position, and in that position the links draw the neck label pad nearer to the tubular arm, so that its face is in the plane of the body label pad. This enables both labels to be transferred simultaneously to the pads 6, 9 by a common transfer finger. Specifications 746,506 and 820,433 are referred to.
Patent GB-867269-A (GB)
Title: Preparation of ª--nitrolactams
Filed: 1959-09-18
Abstract: The invention comprises a -nitrolactams and their preparation by hydrolysing a 3-nitro-azacyclo-alkanone-2-N-carbochloride by means of water at a temperature of at least 50 DEG C.  Specified starting materials contain from 5 to 12 carbon atoms in the azacycloalkanone group and are preferably obtained by reacting 2-chloro - azacyclo-2:3-alkene-N- carbochlorides with nitrating acids and are used without initial removal of residual nitrating acid. Precipitation of the final product is assisted by dissolving a salt such as ammonium sulphate in the aqueous phase. Specification 867,268 is referred to.
Patent GB-1515946-A (GB)
Title: Marine steering assemblies
IPC: B63H5/15
Filed: 1976-10-29
Abstract: 1515946 Lifting cradle for propellor blade GLACIER METAL CO Ltd 29 Oct 1976 [31 July 1975] 32020/75 Heading B8H [Also in Division B7] A lifting cradle for a propeller blade (see Division B7) comprises two brackets 25, 27, each formed in two parts bolted together at the edge of the blade, and having a lifting lug 26.
Patent GB-245110-A (GB)
Title: A process for the preservation of smoked fish
IPC: A23B4/20
Filed: 1925-12-18
Abstract: 245,110. Leptien, H., (trading as Leptien & Wessel). Dec. 18, 1924, [Convention date]. Preserving fish.-For extending the period of preservation of smoked fish, fish which have been smoked and cooled in the usual way are then hung up so that each fish is wholly exposed to the action of a small quantity of preservative or disinfectant in the form of a vapour, e.g. phenol vapour.
Patent GB-1236972-A (GB)
Title: Improvements in induction heaters
IPC: C21D9/00
Filed: 1968-07-04
Abstract: 1,236,972. Induction heating apparatus. AJAX MAGNETHERMIC CORP. 4 July, 1968 [20 March, 1968], No. 32061/68. Heading H5H. A multi-section cross-field induction coil 14 or 14<SP>11</SP>, for uniformly heating one or more elongated metal slabs 17 of differing widths, has means for separately applying voltage to each coil section, e.g. A, B, C, D, E, the voltage being substantially proportional to the number of turns in each section. The coaxial coil sections may have the same turns and dimensions, Fig. 4 (not shown), or comprise a large coil section B, a smaller bottom coil section A, and a plurality of smaller, upper coil sections C, D, E, for heating slabs 17c, 17d, 17e, of differing widths. The voltage for the end coil sections is increased slightly to compensate for heat losses. Coil sections may be independently energized or deenergized to allow for loads of differing widths being heated. The coil 14 is vertically disposed, and slab 17 is raised into position for heating by a support beam 50. Coil 14 is water-cooled via inlet 18 and outlet 19, and has shields 28, 29, to reduce heat losses from the top of the coil. By means of autotransformers 34-37 the voltage in coil sections A, C, D and E can be varied. Power factor control capacitances 32 are connected in parallel across each coil section. Specifications 1,207,522 and 1,227,003 are referred to.
Patent GB-1263487-A (GB)
Title: Method of separating a liquid mixture
Inventor: SLIEPCEVICH CEDOMIR M
IPC: B01D17/02
Filed: 1969-06-25
Abstract: 1,263,487. Hydrocyclones. C. M. SLIEPCEVICH and HENRY PA-HOUNG SHENG. 25 June, 1969 [24 July, 1968], No. 32176/69. Heading B2P. [Also in Division C5] In a process for separating a liquid mixture into fractions of different densities, the mixture is subjected to centrifugal separation by flowing it tangentially into a chamber, the mixture coming into contact with first and second surfaces of the chamber, the first surface being constituted by a material which has a greater affinity towards the lighter fraction than towards the heavier-fraction and the second surface being separate from the first surface and constituted by a material which has a substantially equal affinity towards each of the fractions or a greater affinity towards the heavier fraction, the contact of the mixture with the surfaces enhancing its separation into the said fractions, and the fractions are then separately removed from the first and second surfaces respectively. The apparatus used for carrying out the process may consist of a hydrocyclone in which the vortex finder tube, or a portion thereof, is constructed of, or lined with, a material which is preferentially wetted by the relatively less dense liquid or liquids in the mixture, the selective affinity exerted by the preferential wetting of the material thus enhancing the separatory effect of centrifugation. In Fig. 4, a hydrocyclone, which may be used for separating saturated paraffin hydrocarbons from water, consists of a metallic housing 42 which is internally lined as at 46 with glass. The discharge conduit 44 may also be similarly lined for a short distance. A vortex finder tube 50 which may be threaded through the top of the housing is made of polyethylene. Secured by an end cap 52 at the inlet end of the tube 50 is a grid 54, Fig. 5, which is also constructed of polyethylene and acts as a gate which selectively passes wetting material (hydrocarbon) but tends to reject or block non-wetting material (water). The grid may be mounted further downstream in the tube 50. Other organic plastic materials which may be used for the construction of the vortex finder and of the grid include P.T.F.E., polystyrene and nylon. The wettability of the material chosen may be increased by roughening its surface. Results of an experiment using a hydrocyclone made of glass and a vortex finder tube made alternatively of glass, nylon and polyethylene are given, the mixture separated being one of a paraffin hydrocarbon, polyethylene particles and water. The polyethylene particles exert a separatory effect due to preferential wetting by the hydrocarbon and this prevents the latter from emulsifying with the water.
Patent GB-166098-A (GB)
Title: Improvements in or relating to pneumatic cushioning or shock absorbing devices
IPC: F16F9/48
Filed: 1920-11-15
Abstract: 166,098. Holmes, B. B. July 3, 1920, [Convention date]. Pneumatic springs.-Consists of a pneumatic shock-absorbing device, particularly for motor road vehicles, which comprises two mechanically related cushioning units having different ratio of pressure variation for simultaneous movements under shocks, and means for enabling fluid to pass between said units during operation. A casting formed with an enlargement 8 and a guideway 9 is mounted on a vehicle side-bar, while an inner sliding member 12 is mounted through a sliding roller connection on a radius-rod 6. The member 13 has a port 14 and is closed at its lower end by a threaded plug 15 having an arm 17 extending beneath the rod 6. The member 13 has a head 21, an opening in which receives a doubly tapered extension 22 of a hollow member 12 attached to the screwed cap 10 of the casting, which cap is adapted to receive the end of the member 13 and is flared to facilitate the entry. The lower end of the member 12 carries a piston 24, the central portion of which is a spider 48 and the outer parts of which have arcuate ports 36 controlled by a flap valve 37, retained by a double bevelled ring 38, to allow of fluid passing upwards only. The ring 38 forms a seat for a spring 39. Cup leathers 41 spread by rings 42 and held by retaining rings 43 prevent leakage. A ported passage between chambers 26, 27 in the member 12 is controlled by a valve 30 adapted to be unseated by contact of its stem 33 with the plug 15. Air is pumped in through a valve in the chamber 8, and oil is introduced by removing a plug 35. A dust guard 36 works between flanges 47. The air pressure is such as to hold the device in its normal position, as shown, under full load. The low-pressure space below the piston 24 will have more violent pressure fluctuations under road shocks, and the pressure therein will momentarily rise above that in chambers 8, 27, which are connected by a port 34 producing flow of fluid through ports 36. Repeated shocks will lower the piston, unseat the valve 33, and allow of slow return of fluid until normal riding position is reached. Oil may be forced through ports 36 owing to reduction of low-pressure space due to leakage of oil past the piston ring 25. The spring 39 resists undue elongation of the device, and otherwise acts to check rebound. Sudden elongation is also restrained by dash-pot action of the taper 22 and ring 21 on oil forced therethrough, and under heavy loads of the ring 21 into the cap 10 is heavily checked. Specification 165,431 is referred to.
Patent GB-354628-A (GB)
Title: Improvements in or relating to aircraft
IPC: B64C29/00
Filed: 1930-10-27
Abstract: 354,628. Propelling and supporting aircraft. MINER, H. P., Mission Ridge, South Dakota, U.S.A. Oct. 27, 1930, No. 32258. [Class 4.] A flying machine comprises a body 11, to the upper side of which is secured a fixed supporting plane 10, and a number of propelling engines each driving a shaft 13 projecting on either side of the body 11 and carrying airsciews 14 at the ends. As shown, three engines 12 drive crossed shafts symmetrically arranged in plan but on different levels and supported at their outer ends by brackets 15 fixed to the plane 10. Propulsion is effected by the reaction of the airscrew slipstreams on vertically pivoted surfaces 19 on either side of the fuselage and rise and fall are controlled by horizontally pivoted surfaces 21. The sets of driving and supporting planes are each arranged for simultaneous adjustment and the former may be operated by rack and pinion mechanism which can be locked in any position.
Patent GB-1512929-A (GB)
Title: Conversion of non-coking coal into coke
IPC: C10B57/04
Filed: 1976-08-03
Abstract: 1512929 Coking non-coking coal BRITISH PETROLEUM CO Ltd 3 Aug 1976 [18 Aug 1975] 32284/76 Addition to 1383170 Heading C5E In an improvement of the process for the conversion of non-coking coal into coke claimed in Specification 1,383,170, the binder which is mixed with the coal paste before subjection to a conventional coking treatment is produced by blowing, at a temperature of at least 340‹C., an extract which may be (a) a primary extract obtained by solvent extraction of vacuum distillates of crude petroleum, (b) a secondary extract obtained by reextraction of a primary extract with a solvent or by cooling of a primary extract to cause phase separation, or (c) extract resins obtained from secondary extracts by treatment with a solvent for paraffinic and naphthenic hydrocarbons. The blowing is effected using a mixture of an oxygencontaining gas and steam or an inert gas.
Patent GB-428020-A (GB)
Title: Improvements in or relating to valves
IPC: F04B39/10
Filed: 1934-11-09
Abstract: 428,020. Non-return valves. MOSS, E. W., 75, Victoria Street, London.-(Ingersoll- Rand Co. ; 15, Exchange Place, Jersey City, New Jersey, U.S.A.) Nov. 9, 1934, No. 32355. [Class 135] A valve device for compressors &c., has a thin plate R formed with flexible fingers T, U which open in the same direction, and control inlet and discharge passages L, K in a plate E forming the valve seat to which the plate R is clamped by means of a spacer-plate G having recesses O, Q, to accommodate the fingers, and an outer plate F. The seat plate E is also formed with a port J leading into the piston chamber H, and a port aligned with the outlet P in the cylinder block. The fingers T, U are arranged along a median line of the plate R so that the plate may be reversed upon undue wear on one side of the fingers.
Patent GB-1178869-A (GB)
Title: Improved Polycrystalline Field Effect Device and Methods of Manufacture thereof
IPC: H01L29/78
Filed: 1967-07-13
Abstract: 1,178,869. T.F.T. R. C. A. CORPORATION. 13 July, 1967 [4 Aug., 1966], No. 32369/67. Heading H1K. A T.F.T. has a polycrystalline semi-conductor layer with a thickness in excess of 10,000Š and which is composed of crystallites with size greater than 5000Š. Preferably, the thickness is about 250,000Š and the crystallite size about 10,000Š. Such a transistor may be formed by silk screening a semi-conductor slurry of suitable particle size on to an insulating support and sintering the layer thus formed. The electrodes may be applied by masked evaporation and the gate insulation by masked evaporation or sputtering or by silk screening. Suitable substrate materials are glass, ceramics, and fused quartz. Suitable semi-conductors are germanium, silicon, germanium-silicon alloys, zinc oxide, the sulphides, selenides and tellurides of zinc and cadmium, and the phosphides, arsenides and antimonides of aluminium, gallium and indium. The gate insulation (preferably less than 2Á thick) may be of silicon monoxide, silica, silicon nitride, calciumfluoride, alumina, or zinc sulphide. The source and drain electrodes (less than 100Á or, preferably, 1-20Á apart) may be of aluminium, indium, gold or copper and the gate electrode of aluminium or gold. The formation of cadmium sulphide is described and the preparation of slurries of cadmium sulphide and cadmium selenide.
Patent GB-1220285-A (GB)
Title: Improvements in or relating to transfer elements
IPC: B41M5/10
Filed: 1968-07-08
Abstract: 1,220,285. Polymeric inks. COLUMBIA RIBBON & CARBON MFG. CO. Inc. 8 July, 1968 [20 July, 1967], No. 32411/68. Headings C3C and C3P [Also in Division D2] A pressure-sensitive transfer element of the squeeze-out type is made by applying to a foundation a solution comprising a synthetic thermoplastic polymer, an oily ink vehicle not miscible with the polymer, a colorant, a volatile solvent for the polymer and vehicle and a finely-divided solid capable of liberating a gas, heating to evaporate at least part of the solvent, so that the colouring matter and vehicle separate from the polymer and form pores therein, and activating the solid to liberate gas and form gas pockets within the polymer that communicate with the ink-filled pores. In the examples: (1) the coating composition comprises styrene-methyl methacrylate copolymer, mineral oil, rapeseed oil, flushed alkali blue, lecithin, black toner pigment, p,p<SP>1</SP>-oxy-bis-(benzenesulphonyl hydrazide), toluene, ethyl acetate and methyl ethyl ketone, and the foundation is of polyethylene terephthalate film; after application the coating is heated first to 190 F. to evaporate the ethyl acetate and methyl ethyl ketone, then to 220 F. to activate the blowing agent, and finally to 250 F. to evaporate the toluene; and (2) the coating composition comprises polyvinyl butyral, mineral oil, butyl stearate, black iron oxide, N,N<SP>1</SP>-dimethyl-N,N<SP>1</SP>-dinitrosoterephthalamide, ethyl alcohol and toluene, and the foundation is of paper; the heating is at 250 F. to evaporate the volatiles and activate the blowing agent simultaneously.
Patent GB-767014-A (GB)
Title: Improvements in or relating to shoulder shoulder straps used for carrying articles
IPC: A45F3/12
Filed: 1953-11-23
Abstract: 767,014. Shoulder straps for carrying bags &c. NORRIS & CO., Ltd., S. E., and PATERSON, K. H. Nov. 17, 1954 [Nov. 23, 1953], No. 32437/53. Class 141. A shoulder strap for carrying bags &c., or an attachment therefor has a shouldercontacting surface comprising a strip of rubber moulded so that the surface is formed with pimples or the like. A strip of the moulded rubber may be permanently attached to a normal strap, e.g. it may be spliced and stitched in the required position on a leather strap, the leather being cut away and the rubber being adhesively secured to the remaining leather layer. In another form, Fig. 3, a detachable strip 16 of moulded rubber, or of leather, plastic or fabric with a facing of moulded rubber, is provided with a pair of slots 18 in each of the wider end portions 17 through which a strap may be threaded.
Patent GB-202215-A (GB)
Title: Improvements in terminals for electrical cells
IPC: H01R11/28
Filed: 1922-11-28
Abstract: 202,215. Russell, T. W. Nov. 28, 1922. Electrodes.-A. device for connecting a lead to an electrical storage cell comprises a lug adapted to be permanently joined to the ear of a cell plate, attached to a short piece of flexible conductor which carries at its other end means for connecting it to the lead or cable. The lug B comprises an eye B<2> slightly tapered internally at its upper part to facilitate its being soldered or burned to a spigot member on the cell, and a cylindrical boss B<3> bored to receive the flexible conductor C and recessed to take the end of the insulation covering it. The free end of the conductor carries a coupling D, E, of the kind illustrated, secured with a wing nut and including a washer G of soft metal. The recess E<3> for the lead may be arranged transversely to the flexible conductor.
Patent GB-901271-A (GB)
Title: Ester preparation
IPC: C07C69/78
Filed: 1959-09-24
Abstract: Methyl esters of aromatic polycarboxylic acids are produced by mixing a polyalkyl aromatic hydrocarbon (wherein the alkyl groups contain 1 to 4 carbon atoms) with a molar excess of methanol, and reacting the mixture with molecular oxygen, e.g. in the form of air, in the presence of a catalyst comprising a salt of a polyvalent metal; the reaction being carried out at a temperature of at least 140 DEG C. and under pressure-conditions (200 to 1000 p.s.i.g.) so that the methanol is maintained to a maximum extent in the liquid phase. Preferably 1.5 to 3 mols of methanol should be used per mol-equivalent of alkyl groups to be oxidised.  All the methanol need not be added to the fresh feed, but some of it may be introduced during the course of the reaction.  The following polyalkyl hydrocarbons may be used as starting materials:-the xylenes, mesitylene, durene, pentamethylbenzene, hexamethylbenzene, the corresponding ethyl-, propyl- and butyl-benzenes, and polyalkyl-substituted di- and tri-benzyls. Suitable catalysts are the naphthenates, acetates, bromides and chlorides of cobalt and manganese.  Promoters such as hydrobromic acid, hydrochloric acid, or sulphuric acid may be added.  The Specification includes two flow-sheets, one of which illustrates the production of a mixture of dimethyl terephthalate and monomethyl terephthalate by a continuous two-stage process starting with p-xylene.  The mixture is then submitted to a conventional esterification process whereby the monomethyl ester is converted into the diester.  Example 1 describes the production of a mixture of dimethyl phthalate and monomethyl phthalate from o-xylene.  Appreciable quantities of methyl orthotoluate and phthalide are obtained as by-products.  Example 3 and 4 describe the production of trimethyl trimesate and dimethyl terephthalate from mesitylene and p-di-isopropyl benzene respectively.
Patent GB-210224-A (GB)
Title: Gas or fluid tight packing for rotating shafts, nozzles and bearings
IPC: F16J15/38
Filed: 1922-11-29
Abstract: 210,224. Lancaster & Tonge, Ltd., and Butterworth, J. Nov. 29, 1922. Stuffing-boxes, substitutes for.-Packing for a drying cylinder or other rotating body consists of a metal washer D, pressed against the end surface A of the bearing by a flexible washer E, which grips the journal F and is pressed axially by a washer G and spring H. The washer D may be in two parts making a spherical joint L with one another, or may make a spherical joint with the surface A. The surfaces of the washers G and D in contact with the washer E may be grooved or roughened. The spring H may abut on the cover K, on a screw, or on a washer on the journal F.