baber/WOPTO huggingface dataset:
Patent GB-424636-A (GB)
Title: Improvements in or relating to electric traction systems
IPC: B60L5/16
Filed: 1933-08-19
Abstract: 424,636. Current collectors for electric vehicles. AYMARD, M. F. L. A., 2, College Gate, Eastern Road, Brighton, Sussex. Aug. 19, 1933, Nos. 23181/33 and 21756 /34. [Class 104 (iii)] In a current collector of the kind comprising a pivoted boom 6 held in operative position by springs acting substantially in the direction of the length of the boom, the collecting wheel &c. 41 is mounted on a carrier 40 pivoted at 48 to the free end of the boom, and is pressed up against the wire 42 by a spring 47 arranged between an abutment 44 on the boom and a collar 46 on a rod 38 pivoted at 39 to the carrier 40. If the wheel jumps the wire, the carrier 40 turns upwards, pulling the rod 38 forward, and through cables 31 moving a latch &c. 29 out of supporting engagement with the pivot 17 of a toggle system 15, 18, which collapses into the position of Fig. 4, thereby releasing the tension in the rods 10 of the boom elevating springs, so that the boom falls. The fall is cushioned by a spring 27 and is limited by a foot 18<b> on the lever 18 resting on the base 1. When the wheel has been restored to the wire, the boom is raised by admitting pressure liquid to cylinders, the pistons of which are connected by rods to a spindle 21 sliding on a surface 23 and connected by links 16 to the pivot 14 of the toggle system. In another form, the latch releases a pivoted arm connected to the elevating spring.
Patent GB-986613-A (GB)
Title: Polymer compositions and articles
IPC: C08K3/38
Filed: 1961-06-27
Abstract: A solution suitable for use for the production of filaments, films or other shaped articles by extrusion through a shaping orifice into a coagulant medium comprises a linear condensation polymer having nitrogen and/or oxygen atoms in the polymer chain, a liquid in which the polymer is normally insoluble and a boron trihalide.  Specified polymers are polyamides, polyurethanes, polyureas, polyesters, and polysulphonamides. Specified liquids are water and organic compounds containing up to 8 carbon atoms which are alkane carboxylic acids, alkyl ketones, alkanols, polyhydric alcohols, nitroparaffins, water soluble esters and nitriles of carboxylic acids.  Examples are given.
Patent GB-1133525-A (GB)
Title: Rotor wheel for fan-type mills
IPC: F23K1/00
Filed: 1966-05-24
Abstract: 1,133,525. Beater mills. CENTRALNE BIURO KONSTRUKCJI KOTLOWYCH. 24 May, 1966 [27 May, 1965], No. 23233/66. Heading B2A. A beater wheel has linking bridges 2, Fig. 1, secured to a hub disk I and a .toroidal disk 5, Fig. 2 and is fitted at places exposed to frictional action with protective plates 4, radial segments 10 and triangular metal sheets 11 and protective bands. 6, the linking bridges 2 being fitted with compact plates 3. These are prevented from falling out by the protective plates 4 and wedges 12. The hub disk 1, toroidal disk 5 and the lateral surfaces of the linking bridges 2 are provided with a groove or grooves 13, which may be arranged spirally with constant pitch, or toroidally with equal spacing, in order to reduce the weight and dimensions of the wheel.
Patent GB-376529-A (GB)
Title: Improvements relating to articles of jewellery
IPC: A44C17/02
Filed: 1931-08-18
Abstract: 376,529. Jewellery. HINDS, W., 261, Goldhawk Road, Shepherd's Bush. London. Aug. 18, 1931, No. 23257. [Class 43.] In articles of jewellery adapted to receive gems interchangeably in a fixed setting A of the same configuration as the gem, the setting is formed at its underside with a fixed abutment E for engaging a portion of the edge of the gem, and an open three-sided frame G is mounted pivotally and invisibly at opposite ends of the abutment and is adapted to be snapped into the setting to retain the gem in position. The setting is provided with a flange B forming a groove F with the abutment wherein the edge of the gem may be inserted. Trunnions G<1> may be provided at the ends of the sides of the frame to engage apertures in the abutment or setting, or at the ends of the abutment or in the setting to engage apertures in the frame. A protuberance on the frame and a recess in the setting may be provided for snapping engagement, and a lug provided on the frame to facilitate raising.
Patent GB-789526-A (GB)
Title: Magnesium anode dry cell
IPC: H01M6/08
Filed: 1956-07-27
Abstract: 789,526. Primary cells. DOW CHEMICAL CO. July 27,1956 [Aug. 8, 1955], No. 23347/56. Class 53. A primary cell comprises a drawn steel cup 18 which forms a terminal electrode of the cell, a cylindrical magnesium anode 16 closely fitted within and welded as at 20 to the cup, a hard layer of insulating fluid-impervious material 23 on the side of the anode adjacent the cup and a carbon cathode 12 which is insulated from the bottom of the cup and which is surrounded by a depolarizing mix 14 of manganese dioxide and carbon black moistened with aqueous electrolyte. The material 23 may be enamel, lacquer, paint or plastic, e.g. vinyl chloride. In the form shown, the bottom 26 of the cup is coated with grease, oil or lacquer 22 and the cathode 12 is insulated from the bottom by this layer and by the paper bag 24 containing the depolarizing mix. A seal 42 is formed between the cathode and the cup by tar poured on to a paper washer 44, a tab 46 of which may be bent up to extend through the tar and form a gas vent. Alternatively the carbon cathode 12 may be porous to vent the gases from the cell. The electrolyte used is of the type described in Specifications 659,367, 659,368 and 669,256, and the cup may be given a coating 48 of insulating plastic. Specification 789,525 also is referred to.
Patent GB-436815-A (GB)
Title: Improvements in coke-oven door operating machines
IPC: C10B25/14
Filed: 1934-08-14
Abstract: 436,815. Door-operating mechanism. McEWAN, M. H., and WOODALL-DUCKHAM (1920), Ltd., 136, Victoria Street, Westminster. Aug. 14, 1934, No. 23418. [Class 65 (i)] A coke - oven door-operating machine, shown in plan, includes a jib structure 4 rotatable about a vertical axis 3 anc carrying a hook member 9 for engagement with the door 18, the arrangement being such that the removal of the door from the oven and its replacement therein are effected solely by rotation of the jib about the axis 3. In the form shown this rotation is produced by an electric motor 15 driving, through gearing, a worm engaging a toothed sector 17 fixed to the jib. The hook 9 may be of a jointed type, such as is described in Specification 436,685, so that when the door is withdrawn it may be swung round into a position such as is shown at 18<a>. In a modification, in order to compensate for the arcuate movement of the jib in the initial part of its motion, the hook 9 is slidable transversely in the head 8 of the jib and carries a roller engaging a fixed cam track which causes it to move towards the pivot axis 3 of the jib during the first part of the rotation thereof, so that the door is withdrawn in a straight line until it is clear of the oven opening to avoid any contact with the latter.
Patent GB-632263-A (GB)
Title: Dual purpose water closet
Filed: 1947-08-25
Abstract: 632,263. Bed-pans; commodes; closets. LEVIN, 1. Aug. 25,1947, No. 23471. [Class 26] A dual-purpose water-closet comprises a base 11, a commode bowl 46, a conduit 38 for supplying water under, pressure connected to a supply device 39, a conduit 44 connected to a soil pipe, both of which conduits are flexible so that the bowl may be moved about and means for raising and lowering the bowl, so that it can be used as a regular toilet or as a bed pan. Said means comprises a jack 16 mounted on the base 11, composed of a rack bar 20 within a tube 18, the rack bar being made to co-act with a cog 27 driven by a worm 28 from a handle 29. On the upper end of the rack bar 20 is mounted an L-shaped bracket on the arm 24 of which is a fulcrum element 25 embraced by a hinging sheath 50 attached to a block 33, which is an extension of the bowl 46, whereby the bowl has a limited tilting movement under the action of a stabilising and return spring 51 connected with the arms 24 and the bowl. When the bowl is in its lowest position it rests on the adapter plate 15 on the pedestal 13 and is supported on the floor by the extremity 21 of the rack bar 20 and a supporting leg 54. The bowl is flushed by a valve 34, operated by the handle 35, attached to the water conduit 38, and has an outlet 42 connected to the conduit 44. A seat 52 may be provided to rest on the rim 30.
Patent GB-442601-A (GB)
Title: Process for the preparation of beryllium oxyfluoride and metallic beryllium therefrom
IPC: C25C3/34
Filed: 1934-08-15
Abstract: 442,601. Electrolytic production of beryllium oxyfluoride and of aluminium and beryllium. KIRSEBOM, G. N., 3, Osborne Road, Clifton, Bristol, and CALLOY, Ltd., 95, Gresham Street, London. Aug. 15, 1934, No. 23566. [Class 41] Beryllium oxyfluoride is obtained by the electrolysis of a molten fluoride such as cryolite in the presence of beryllium oxide. A complete process for obtaining beryllium from its ores comprises the following stages. The ore is introduced into a bath of molten aluminium in pieces sufficiently large to overcome the surface tension of the aluminium and to sink, whereby an aluminium-silicon alloy and a dross containing beryllium and aluminium oxides together with some of the alloy are produced. The dross is separated and ground to powder and most of the admixed alloy is separated mechanically. The dross is then introduced into a bath of molten cryolite and electrolyzed until most of the aluminium oxide has been decomposed. Electrolysis is then continued at a higher voltage until the beryllium oxide contained in the melt is converted into beryllium oxyfluoride. The melt is separated from the reduced aluminium and is further electrolyzed for the production of metallic beryllium. Alternatively, the beryllitun oxyfluoride may be separated from the slag by extraction with water and evaporation of the solution. Beryllium may then be obtained from this, for example, by reduction by magnesium. Specification 397,844, [Group II], is referred to.
Patent GB-791696-A (GB)
Title: Improvements in and relating to electric heating control systems
IPC: G05D23/24
Filed: 1955-08-16
Abstract: 791,696. Electric hot-plates. GENERAL ELECTRIC CO. Aug. 16, 1955 [Aug. 17, 1954], No. 23616/55. Class 39(3) [Also in Group XXXV] A hot plate having heating elements 25a, 25b is controlled by a push-button switching system 21 which provides for (a) automatic temperature control of the plate in dependence upon the temperature of the vessel being heated (b) continuous operation of the plate at any one of a number of different loadings and (c) disconnection of the plate from the mains. The switches are interlocked in such a manner that operation of any push-button, in addition to causing actuation of its own associated switch, restores any previously operated button and its switch to the unactuated condition. In the system shown four of the push-buttons provide, respectively, for four different continuous loadings, their switches controlling the connections between conductors 136, 137, 139 and the lines 101-103 of a three-wire supply such that either one, or both, of the elements 25a, 25b may be connected either between one of the outer wires and the neutral wire of the supply, or across the twoouter wires. When the button for automatic control of heating is operated the two heating elements are connected for parallel supply from the outer wires 101, 102 over contacts of a relay 110 which is now energized over conductor 138, rectiner 130 and voltage stabilizer tube 131. Current for energizing the relay is drawn through a resistor R1, through which also passes the current taken by a shunt circuit comprising a fixed resistor R2, a variable resistor R3 which is adjusted in value 'by a knob 49 for selecting the desired operating temperature, and a thermistor 47 carried by the hot plate in a member which makes good thermal contact with the vessel being heated but which is thermally insulated from the hot plate itself, so that the thernnistor is responsive only to the temperature of the vessel. When the vessel reaches the desired operating temperature the voltage drop in resistor R1, caused by the increasing current taken by the shunt circuit as the resistance of the thermistor falls, is such that relay 110 can no longer hold in. The heating elements are thus disconnected from supply until increasing resistance of the thermistor, consequent upon cooling of the vessel, again allow the relay to operate and initiate another heating period. The temperature of the vessel thus cycles about a value selected by the knob 49. Over the higher temperature settings of the knob 49 a switch 91, 92 actuated thereby connects an additional condenser C2 across the relay coil to reduce the temperature range of the cycle. Adjustable resistors R4, R5 are provided for reducing the differential of the relay and preventing hunting. Specification 144,767 [Class 39(iii)] is referred to.
Patent GB-1199227-A (GB)
Title: Process for the preparation of Trichloroethylene
Inventor: ANTONINI ALBERT
IPC: C07C17/158
Filed: 1968-05-17
Abstract: 1,199,227. Oxychlorination process. PRODUITS CHIMIQUES PECHINEY-SAINTGOBAIN. 17 May, 1968 [19 May, 1967], No. 23677/68. Heading C2C. Tri-chloroethylene is obtained by passing a gaseous mixture comprising vinylidene chloride and one or more compounds selected from vinyl chloride and dichloroethylenes, HCl and an oxygen-containing gas through a reaction zone containing a fluidized-bed catalyst at 150 to 350 C., the catalyst being supported on a carrier having an average particle size of 20 to 400 microns and an average specific surface area higher than 1 m<SP>2</SP>/g. The carrier may be alumina, magnesia, graphite, activated carbon, an aluminosilicate, silica or clay. When oxygen is used in the pure state, condensable products from the reactor effluent may be partially or entirely separated by cooling and condensation and the organic compounds present in the uncondensed gas may be recovered and the unreacted chlorinated ethylenes may be recycled to the reactor. The gaseous feed stream may also comprise 1,1,2-trichloroethane, 1,1,1,2- tetrachloroethane and 1,1,2,2-tetrachloroethane provided that the molar ratio chloroethanes to chloroethylenes is less than 2. 1,1,2-Trichloroethane, 1,1, 1,2-tetrachloroethane. 1,1,1,2-tetrachloroethane, pentachloroethane and perchloroethylene may be produced as by-products.
Patent GB-464892-A (GB)
Title: Improvements in iris diaphragms for photographic shutters
IPC: G03B9/08
Filed: 1936-08-29
Abstract: 464,892. Iris diaphragms. ZEISS IKON AKT.-GES. Aug. 29, 1936, No. 23737. Convention date, Aug. 30, 1935. Drawings to Specification. [Class 97 (i)] The ends of the pivoted laminae of an iris diaphragm move in straight non-radial slots in the adjusting ring and the inner edges of the laminae are so shaped that equal angular movements of the adjusting ring produce equal changes in the area of the aperture. The shape of the edges may be determined graphically as described in Specification 6974/04, [Class 97].
Patent GB-849605-A (GB)
Title: Improvements in or relating to the excitation and automatic voltage regulation of alternators
Inventor: DETTMER DEREK EDWARD GORDON
IPC: H02P9/32
Filed: 1958-07-23
Abstract: 849,605. Exciting alternators; automatic voltage control systems. GENERAL ELECTRIC CO. Ltd. June 23, 1959 [July 23, 1958], No. 23741/58. Addition to 831,698. Classes 35 and 38 (4). The alternator compounding arrangement described in the parent Specification is rendered more accurate and rapid by the use of an additional constant voltage or current supply in the voltage component control circuit. In the form shown, the controller 12 which operates on the voltage component of excitation through a saturable reactor 10 to make secondorder corrections in the line voltage, is supplied with a steady A.C. voltage from an auxiliary permanent magnet generator 13. The controller is preferably of the neon reference and magnetic amplifier type, and according to this invention the magnetic amplifier is supplied from the alternator 13 instead of from the main machine as in the parent Specification. This renders the magnetic amplifier insensitive to transients in the main machine. Preferably the alternator 13 is of high frequency and is coupled to the main machine. In a modification (not shown) the saturable reactor 10 is saturated by an additional D.C. control-winding fed with constant current from a D.C. generator or an A.C. generator and rectifier. The D.C. control winding 11 fed by the controller 12 opposes the additional winding and serves to de-saturate the reactor 10. This arrangement also improves the transient response, and makes it possible for the controller 12 to be omitted for low-accuracy regulation, or a part of the additional control winding to be fed from the alternator output through a transformer and rectifier instead of using the controller 12.
Patent GB-282873-A (GB)
Title: Method of introducing materials into high pressure apparatus
IPC: F04B7/04
Filed: 1926-09-27
Abstract: 282,873. Synthetic Ammonia & Nitrates, Ltd., and Humphrey, H. A. Sept. 27, 1926. Actuating by liquid pressure; single-acting suction-valveless piston pumps; valves, arrangement of.-Apparatus for. transferring material from one vessel A to another B comprises two plungers D, E reciprocating in a cylinder C provided with ports communicating with the vessels A, B. The plungers are operated by hydraulic pressure admitted alternately to opposite sides of pistons F, G by valves J - - M. The material is drawn into the cylinder by movement of the plunger E away from the plunger D. The two plungers then move together towards the vessel B carrying the material between them until the port opening into the vessel B is uncovered by the plunger E. The latter then stops and the plunger D moves towards it, forcing the material into the vessel B.
Patent GB-685456-A (GB)
Title: Improvements in ship anchors
Inventor: DOVE HERBERT LESLIE
IPC: B63B21/44
Filed: 1949-09-15
Abstract: 685,456. Anchors. DOVE, H. L., FARRELL, K. P., and LILLICHAP, C. S. Dec. 14, 1950. [Sept. 15, 1949] No. 23785/49. Class 113 (i). In a hinged stockless fluke anchor having the fluke faces d splayed and extended rearwardly and laterally into stabilising surfaces e, the aspect ratio of the anchor given by the plan projected area of one fluke and associated stabilising surface portion together (as measured when the shank and said fluke are aligned as illustrated in Fig. 1) divided by the square of the fluke length z from hinge axis c<SP>1</SP>c<SP>1</SP> to tip f is of the order of 0.4, and the flukes are at least partially hollow, (see Fig. 2 which is a section on II-II). Each fluke is of substantially trapezoidal plan shape and of acute isosceles triangle cross section. Preferred relationships between other dimensions and angles are quoted. The shank is of elliptical cross section and is provided with a shackle b.
Patent GB-476349-A (GB)
Title: Improvements in or relating to photographic objectives
IPC: G02B13/00
Filed: 1936-08-31
Abstract: 476,349. Lenses. TRONNIER, A. W. Aug. 31, 1936, No. 23830. [Class 97 (i)] In an objective of the kind referred to in Specification 476,348, in order to reduce the length of the system without increasing the aberrational and astigmatic errors the sum of the surface effects of the front collective component is made greater than one half the sum of the surface effects of the first two collective components.
Patent GB-1267415-A (GB)
Title: Offset printing machine
IPC: B41F17/22
Filed: 1969-05-09
Abstract: 1,267,415. Offset printing on curved surfaces. O.M.S.O. S.r.L. 9 May, 1969 [19 June, 1968], No. 23834/69. Heading B6C. In a multi-colour offset printing machine for printing the curved surfaces of cans 9 delivered to the machine on rotary feeders 8, four plate cylinders 1 are used to image each of five offset surfaces 2 carried on a rotary cylinder 3 the multi-coloured impression on each being then transferred to one of two intermediary offset cylinders 6 for transfer to a can 9. The dimensions and the operative speeds of the cylinders 1, 3, 6 and 8 are so arranged that alternate surfaces 2 impress each surface 7 on the associated cylinder 6.
Patent GB-625687-A (GB)
Title: Improvement in shuttle valves
IPC: F15B13/02
Filed: 1946-08-13
Abstract: 625,687. Fluid-actuated valves. SHIELDS, R. (Parker Appliance Co.). Aug. 13, 1946, No. 23920. [A Specification was laid open to inspection under Sect. 91 of the Acts, Aug. 13, 1946.] [Class 135] In a valve having two inlet ports 24 provided with seats 20 at the ends of a cylindrical bore 10 in the casing and an intermediate outlet port 30, a shuttle valve 14 is slidable in the bore for alternately connecting one of the inlets to the outlet and closing the other inlet, the valve having cylindrical portions 12 engaging the wall of the bore and so spaced apart as to be alternately withdrawable from the bore into an intermediate enlargement 8, and also having part-circular portions 15 between the cylindrical portions and seat-engaging end portions 19 for guiding the valve in the bore and defining clearance spaces for the flow of fluid. The casing may have two cross-bores, the 'shuttle sliding in one and the other 9 constituting the outlet and a plug chamber containing detent in the form of a spring-loaded ball 28 riding over the valve ridge 13 for retaining the shuttle in one or other of its positions. The seatengaging balls 19 are loose to ensure selfcentring.
Patent GB-863619-A (GB)
Title: A method of treating textile materials
IPC: D06B5/22
Filed: 1957-07-30
Abstract: <PICT:0863619/IV(c)/1> <PICT:0863619/IV(c)/2> A method of liquid treating e.g. dyeing, steaming, a textile material, which may be followed by a drying operation (see also Group XIII) comprises wrapping the material in superposed layers on the perforated peripheral surface of a drum rotatably mounted in a closed vessel containing the treating liquid, the interior of the drum being in direct communication with the vessel through an opening in an end of the drum disposed at least partly below the level of the liquid within the drum, and effecting transport of the liquid through the opening into the interior of the drum, and from the interior outwardly through the perforations and the material wrapped thereon by rapidly rotating the drum.  The apparatus in which the above method is performed comprises a vessel 7 having a loading door, a perforated rotatable drum 1, a fluid inlet 11 and an outlet 12, and an inlet 13 for steam or air under pressure.  A mixture of hot air and steam, or hot air or steam alone may be introduced into the vessel 7.  In a liquid treatment the liquid may be pre-heated, or steam may be passed through a coil 17 to mix directly with the liquid or through steam coils not shown.  If subsequent to a liquid treatment it is desired to extract liquid from the textile material, the vessel 7 may be emptied and the machine operated as a centrifuge.