baber/WOPTO huggingface dataset:
Patent GB-982650-A (GB)
Title: Furnace for heating fluid reactants in the presence of catalyst
IPC: C10G9/20
Filed: 1963-07-30
Abstract: <PICT:0982650/C4-C5/1> A furnace for the catalytic steam reforming of hydrocarbons comprises a combustion chamber 17 defined by walls 21, roof 18 and floor 19, a plurality of vertical tubes 27 extending through the roof 18 and being adapted to contain a catalyst and to receive fluid reactants at their upper ends, e.g. from headers 29 through hose 31, headers 28 in the chamber 17 connected to the lower ends of the tubes 27, and transfer means 33 connected to the headers 28, e.g. by risers 32.  Each header 28 is closed at both ends and is connected to a row of tubes 27 (see Fig. 1, not shown), each header having one riser 32.  Each tube 27 is resiliently, and preferably adjustably, supported at its upper end, e.g. by tension or compression springs (see Fig. 5, not shown).  The means 33 may lead to a point of use or to a secondary reformer for reaction with steam and air using a catalyst.  Several modifications are described.  In one, the means 33 lies underneath the chamber 17. In another, Fig. 4 (not shown), the riser is at one end of the header 28, each riser leading to a common horizontal manifold in the top of the chamber 17. In a third, Fig. 3 (not shown), the headers 28 are connected at one end to a common horizontal manifold which has a single riser, and in a fourth, the manifold lies centrally of the chamber 17 in the plane of the headers 28, passing through the flue gas ducts 23.
Patent GB-1183339-A (GB)
Title: Improvements in or relating to Isolating Valves
Inventor: BECK KURT
IPC: F16K3/02
Filed: 1966-07-05
Abstract: 1,183,339. Isolating valves. GROSSVENTILTECHNILE A.G. 31 May, 1967 [5 July, 1966], No. 30141/66. Heading F2V. A valve for isolating parts of a duct system has frame parts 3a, 3b fixed into a duct and joined by bridge pieces 7. A gap between the two frame parts has flexible seals, e.g. metal loops 9 mounted in Z-pieces 8, which rest against each other when the valve is open to seal the duct from atmosphere. A valve plate 1 which is driven upwards into the gap by motordriven screw-and-nut mechanisms moves between the seals 9 and separates one duct part from another. The seals 9 bear against the plate surfaces to seal the duct parts from one another and from atmosphere. The seals 9 may be provided along each edge of the frame parts or alternatively only along the top and bottom edges if the two frame parts are joined along their sides. In this latter case leaf springs on the plate bear against the frame sides to seal one duct part from another when the valve is closed. The seals 9 can be resilient pads of glasswool or silicon rubber, or leaf springs.
Patent GB-248328-A (GB)
Title: Improvements relating to self packing coke oven doors
IPC: C10B25/16
Filed: 1925-11-30
Abstract: 248,328. Beckers, A. Feb. 25, 1925, [Convention date]. Retort and like doors. - A self-packing coke oven door b is provided with a pressure frame e secured to transverse rods f resting on adjustable supports g on the door, the pressure frame being adapted to press a pacliing strip d into the joint a and being freely movable with respect to the door body. The holders g are adjustable on the door body and the pressure frame consists of separate portions connected in the form of links by being adjustably secured to the ends of the transverse rods f.
Patent GB-509561-A (GB)
Title: Improvements in and relating to transporting means for guns
IPC: F41A23/26
Filed: 1938-10-20
Abstract: 509,561. Load-handling machines for ordnance. AKTIEBOLAGET BOFORS. Oct. 20, 1938, No. 30333. Convention date, March 26. [Class 78 (iii)] [Also in Group XXI] To transfer a gun barrel from the gun-carriage to a transport carriage, both carriages are provided with cylinders 6 moving in fixed cylindrical guides 5 over fixed pistons 23. Each cylinder carries a rack 7 gearing with a worm wheel 8 forming the final drive of a two-ratio spur and bevel gear operated by applying the crank handle 11 to the shaft 12 or the shaft 15. A beam 18, fitted with a runway trolley 19, is arranged between forks at the top ends of the cylinders. The interior of the cylinders is connected to the pressure reservoirs 29 on the carriages in order to balance the weight of the lifted parts, including that of the barrel. Springs may replace this fluid-pressure support in some cases. In operation, assuming the barrel to be on the transport carriage, the beam 18 is unlashed from the barrel, swung across to the gun-carriage and placed in the fork on the cylinder thereon. The trolley 19 is run over the barrel and connected thereto by the pin 22. The transport carriage end of the beam is then raised by operating the crank 11, placed on the more suitable shaft, and the trolley then pushed along the beam. Finally the gun-carriage end of the beam is lowered to deposit the barrel on the gun-carriage.
Patent GB-417283-A (GB)
Title: Improvements in refrigeration compressors
IPC: F25B31/00
Filed: 1933-11-02
Abstract: 417,283. Oscillating - cylinder gas compressors. KOHNEN, E., 18, Oberaltenallee, and HELMKE, W., 87, Gartnerstrasse, Bergedorf, both in Hamburg, Germany. Nov. 2, 1933, No. 30518. Convention date, Sept. 4. [Class 8 (i).] A refrigeration compressor 1 comprises a cylinder 15 oscillating on a pivot pin 18 and resiliently pressed by a spring 25 against a surface 28 containing inlet and outlet ports which are situated above the level of oil surrounding the lower half of the cylinder. The oil is supplied to and discharged from the casing 16 surrounding the compressor by pipes 29, 30 ; an oil separator 20 to which the gas discharge pipe 6 is connected delivers the separated oil through a pipe 21 to the casing 16. Oil is carried into the cylinder either by the piston rings or by ports in the cylinder uncovered by the piston. The vaporizer coil 3 lies next one of the walls of the refrigerating chamber, which opens to the atmosphere only by a cover 33, the coil being reduced in size by pressing the turns together or providing only a small space between the turns at their ends.
Patent GB-1450574-A (GB)
Title: Process for recovering copper and nickel selectively
IPC: C22B23/00
Filed: 1973-06-27
Abstract: 1450574 Stripping Cu and Ni from oxime solutions KENNECOTT COPPER CORP 27 June 1973 [28 June 1972] 30580/73 Heading C1A Cu and Ni are recovered from organic oxime solutions by stripping Ni with an aqueous acid solution and recovering (e.g. by electrowinning) and stripping Cu with an aqueous acid solution and recovering by electrowinning, the aqueous solution from the Cu electrowinning step being re-cycled partly to the Custripping step and partly to the Ni-stripping step so that Ni concentration in the Cu-electrowinning step is maintained below 10 g. per litre, the mole ratio of H ion in the fresh aqueous acid solution to Ni ion in the oxime solution being maintained between 1À8 and 2À2. A single oxime solution containing both Ni and Cu may be used sequentially stripping first Ni and then Cu. The oxime used may be an α-hydroxyoxime or a substituted hydroxy benzophenoxime or a mixture of these in the proportion of 1-100% α-hydroxy-oxime on the weight of the hydroxy benzophenoxime. Sulphuric, hydrochloric and nitric acids or mixtures of these may be used for stripping Cu and Ni. Boric acid and a salt, e.g. Na, SO 4  or NaCl may be present in the Ni electrowinning stage and the resulting barren solution re-cycled to the stripping step. The aqueous solution entering the Ni stripping stage may contain 10 to 60 g. per litre Ni. The initial solution may be obtained by extraction of a leach solution with oxime followed by scrubbing with NH 4 HCO 3  solution. The nickel electrowinning step may be replaced by any conventional method of obtaining nickel from a nickel containing solution, e.g. precipitating as carbonate, decomposing to the oxide and reducing this. Reference has been directed by the Comptroller to Specifications 1,051,159 and 1,091,354.
Patent GB-360615-A (GB)
Title: Improvements in spring units for chair and the like seats
IPC: A47C27/06
Filed: 1930-10-14
Abstract: 360,615. Spring upholstery. COCKAYNE, C. A., 17, Dockholm Road, and EVEREST UPHOLSTERY, Ltd., Canal Street Mills, both in Long Eaton, Derbyshire. Oct. 14, 1930, No. 30728. [Class 52 (iv).] In a spring assembly for seats &c. wherein the springs of the front row are constrained against inward displacement by a stay 7 secured at its rear end, the front end of the stay is attached to the rearmost point of the upper coil of one or more of the front row springs.
Patent GB-529766-A (GB)
Title: Improvements in and relating to multi-position electric swtiches, particularly for controlling electric motors
IPC: H01H25/06
Filed: 1939-05-22
Abstract: 529,766. Actuating controllers. BRITISH THOMSON-HOUSTON CO., Ltd., and WISE, W. L. May 22, 1939, No. 30793. Divided out of 515,220. [Class 38 (iii)] A controller for effecting changes in the winding connections of an induction motor to give operation at several speeds comprises a number of switch bases 1 arranged co-axially and located by spacers 7 to form a unitary structure. On the bases are mounted, around the axis, a number of fixed contacts with which movable bridging contacts 6 are arranged to co-operate, these contacts 6 being carried on a shaft 5 passing through the centres of the bases 1. The shaft 5 is rotated to position selectively the bridging and fixed contacts and moved axially to effect engagement between these selected contacts, by means of a handle 11. The handle is free to rotate the shaft in its position O and is operated to its position R to effect operation of the motor at the selected speed. In this position a pin 23 prevents rotation of the shaft. Movement of the handle to a position P against the action of a spring 30 causes reversing contacts 1b to engage contacts on a base 1a to give a plugging operation. Spring coupled arms co-operate with a cam member 29 to hold the shaft 5 in its " off " and " on " positions corresponding to the positions O and R of the handle. A spring biassed roller 20 co-operates with recesses in a member 18 to position the shaft 5 in its several angular positions. The member 18 and its cooperating roller may be formed in a unitary structure with a spring biassed plunger which co-operates with a ball to provide for the axial location of the shaft. A single set of movable contacts may be positioned between two contact bars carrying the fixed contacts to co-operate at will with either.
Patent GB-536828-A (GB)
Title: Improvements in or relating to the manufacture of rubber chloride
IPC: C08C19/14
Filed: 1939-11-27
Abstract: 536,828. Chlorinated rubber. RAOLIN CORPORATION. Nov. 27, 1939, No. 30877. Convention date, Dec. 12, 1938. [Class 70] Chlorinated rubber is prepared by chlorinating an anhydrous solution of de-proteinized rubber or pure pale crepe or smoked sheet containing not more than 0À2 per cent. nitrogen in a chlorine-resistant solvent such as carbon tetrachloride to a minimum chlorine content of about 65 per cent, purifying the solution to reduce the nitrogen content to less than 0À02 per cent. and recovering the rubber chloride from the solution by precipitation. The rubber is dispersed in the solvent or dis-aggregrated, de-hydration effected and the viscosity of the solution reduced, for instance in the manner described in Specifications 489,954 and 490,824, and the nitrogenous impurities may be further reduced by the process described in Specification 491,138. Dis-aggregation may also be expedited by bringing the solution into contact with metallic copper present as fragments of the metal or as a part of the apparatus. The purified solution is cooled to 40 C. before the chlorination, which is preferably performed in a vessel provided with a liquid-circulating system, and may be expedited by the employment of copper in part of the circulation system and by irradiating the circulating liquid by a mercury vapour lamp. Dry air may be blown through the solution to remove HC1 formed during the re-action, residual HC1 and excess chlorine being removed by heating and by the addition of finely divided lime or other alkali. The chlorinated rubber is precipitated from the solution preferably by means of an alcohol such as methyl alcohol, streams of the solution and the alcohol being advantageously delivered to opposite points at the top of a colloid mill to produce a slurry from which finely comminuted solid chlorinated rubber is obtained by filtering or centrifuging. The product may be used alone or in association with the plasticizers described in Specifications 489,977, [Group III], and 491,015 and the " petronizing agents described in Specification 491,075.
Patent GB-876432-A (GB)
Title: Machine for producing finned tubing
Inventor: JONES DOUGAN LEE
IPC: B21C37/26
Filed: 1959-09-10
Abstract: 876,432. Making helically finned tubing; coiling. MARLEY CO. Sept. 10, 1959, No. 30882/59. Classes 83 (2) and 83 (4). A machine for coiling strip on tubing to form a fin thereon includes a first roll, through a central bore of which the tubing to be finned is passed, a second roll cooperating with said first roll to coil strip on the tubing and variable speed means for rotating the rolls. Tubing 22 is fed forward and rotated by three rubber rollers 52, Figs. 6, 7, on shafts 50 rotated, through universal joints, chain and sprockets, from a shaft 92, Fig. 18, driven from a pulley 118 through a variablespeed pulley 128. The pulley 118 is driven through a belt 122 by a variable-speed hydraulic motor 120. Each roller 52 is rotatable in a U support 48 carried by a spindle 46, extending radially of the tubing 22 and adjustable theretowards, the uppermost spindle 46 being urged by an adjustable spring 58 against the tubing 22 and having quick-release means 62. To adjust the angularity of the roll axes 50 about their spindles 46 relative to the axis of the tubing 22 and thus vary the longitudinal speed of the tubing, extensions 84 of the roll supports 48 engage slots 82 in a plate 70 adjustable about the axis of the tubing by a handle 86. Strip 26, Fig. 14, to form the fin is fed over a roll 184, through an opening 194 in an adjustable guide 28 over a rounded edge 196 of the guide, Fig. 17, along a transversely bevelled vertical surface 198 and then between a frusto-conical surface 108 of a roll 106, rotated by the pulley 118, and through a central bore of which roll the tubing 22 is fed, Fig. 10, and a conical pressure roll 134, which rolls serve to coil the strip 26 on to the tubing to form a helical fin 24. The roll 134 is in a head 138 driven at the same surface speed as the roll 106 by a variable-speed hydraulic motor 140, Fig. 9. The head 138 is carried by crank means 158, 168 operated by a pneumatic motor 154 to swing the roll 134 angularly relative to the roll 106 and to press the strip 26 tightly against the roll 106, the head 138 moving about a cam 150 engaged in a slot 148 in the machine frame. Wrinkles formed in the fin 24 may be removed by passage through a spring-urged pair of plates 210, 212, Fig. 15. Two rolls 134 may be provided. When the fin is to be brazed to the tubing a flux may be sprayed or brushed on the tubing as it passes from the feed rolls 52 to the roll 106.
Patent GB-608966-A (GB)
Title: Improvements in or relating to automatic feeding and ramming arrangements for automatic firearms
IPC: F41A9/64
Filed: 1945-11-19
Abstract: 608,966. Automatic firearms. AKTIEBOLAGET BOFORS. Nov. 19, 1945, No. 31078. Convention date, Feb. 7, 1942. [Classes 92 (i) and 92 (ii)] A feed and ramming arrangement for an automatic firearm having its magazine located above a charging bridge 5 from which bridge a cartridge is pushed by an automatically operating rammer 18 into the breech is characterised by the provision of two successively operating feed-down mechanisms, one of which feeds the lowermost cartridge on to the bridge during recoil, while the other advances the remaining cartridges by one step during run-out. The charging bridge shown recoils with the barrel and has grooves which serve to rock a pair of levers 22, 23, the other ends of which serve respectively to cause vertical oscillations to the feed-down arms 21 and 31. Arm 21 carries elements 20 which yield outwardly when arm 21 ascends, but which urge the cartridges downwardly when arm 21 descends, the lowermost cartridge being urged past wheels 28 on a shaft 29, which can yield outwardly against the force of a spring-actuated piston 50, and coming to rest on supports 26, 27. These supports yield outwardly when an element 30 on arm 31 moves downwardly to feed the round on to the bridge. From the bridge the round is moved to the breech chamber 13 by the ears 39 on upwardly extending forked arms of the rammer, the latter having a part encircling a bar 15 which carries the rammer spring 16. The rammer is taken to its rear position after a shot is fired by pivoted members on the bridge and is temporarily held in the retracted position by a pawl lever 17 pivoted to a spring- controlled pivoted lever 52. The round, when being rammed, passes over the front pivoted section 7 of the bridge and into the chamber 13, the breech-block 2 then moving upwardly to its closed position and the round being fired. The breech-block in rising engages a catch 36 whose function is to engage the section 7, as shown in Fig. 1a, so that the section serves as a guide for the empty cartridge case. Abutments 59 and 38 on the receiver 3 serve to hold the catch in releasing positions at appropriate times. Specification 398,081 is referred to.
Patent GB-1312510-A (GB)
Title: Method of manufacturing a multi-layer semiconductor device
IPC: H01L29/93
Filed: 1970-06-26
Abstract: 1312510 Semi-conductor devices HITACHI Ltd 26 June 1970 [27 June 1969] 31120/70 Heading H1K In making a voltage variable capacitance diode an N + NN + configuration is achieved by forming a P type layer on an N+ substrate, forming an N + layer on top of it and heating to convert the P layer to N type by donor diffusion from the N + layer and substrate. In a typical case the substrate is of antimony-doped silicon of #À02 ohm. cm. resistivity, the P type layer, epitaxially grown by thermal decomposition of a silane is 1-5 Á thick and has a resistivity of À5-3 ohm. cm. due to boron doping, and the N+ overlayer, formed by epitaxy or diffusion, is 1-3 Á thick and is doped with phosphorus or antimony to a resistivity of À6 to À001 ohm. cm. Heating for a specified period at 1200 C. causes conversion of the P type layer. A P + layer is next produced by a specified epitaxial growth or diffusion technique, and the resulting product mesa-etched, passivated with lead silicate glass or silicon oxide optionally mixed with nitride, and contacted. Both the top contact, of gold or gold-gallium and the substrate contact of gold-antimony are given an overlayer of silver. In a modified method conversion of the P type layer occurs during deposition of the N + and/or P + layer or alternatively during formation of the N + layer by a diffusion method. Manufacture of a planar diode uses the same steps save that the N + and P + layers are formed by a masked diffusion so that the mesa-etching and subsequent re-passivation can be dispensed with.
Patent GB-371328-A (GB)
Title: Improvements in and relating to methods of joining metal to glass
IPC: H01J5/18
Filed: 1930-10-17
Abstract: 371,328. Discharge apparatus. BRITISH THOMSON-HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Gates, E. F. ; 223, 4th Street, Scotia, New York, U.S.A.) Oct. 17, 1930, No. 31154. Convention date, Oct. 17, 1929. Void [Published under Sect. 91 of the Acts]. [Class 39 (i).] In a method of sealing a thin metal member to glass, particularly applicable to the sealing of a thin metal window, of a chromium-iron alloy, into an X-ray tube, the edge of the metal window is first formed with a glass bead which is then sealed to the aperture in the X-ray tube. The X-ray tube has re-entrant stems 4 normal to one another, on which a tungsten copper-backed anode 2 and a combined cathode and ray-focusing arrangement 3 are carried, the X-rays being directed through the window 5. During formation of the sealing bead 5, which is of French lead glass, the metal disc 5 is held between two massive metal cylinders 8, 9, Fig. 2, clamped by means of a spring member 10, and the bead is applied from a cane 6 by means of a torch 7. The window 5 is sealed into the envelope 1 before the formation of the re-entrant stems 4 and during this process the envelope 1 is rotatably mounted on a hollow shaft 17, Fig. 4, passing through a plug 12 and a centring ring 20 and carrying one of the heat-conductive window-clamping members 19. The other clamping member 18 is carried on a rod 28 and cross-piece 30, the rod 28 being resiliently carried in a sleeve 26 which is secured to the shaft 17 by a rod 24 and clamp 25. The spring 32 serves to press the members 18, 19 together. During sealing of the window edge by the torch 33 the whole tube and fitting is rotated by means of a belt 16 on a pulley 15 secured to the hollow shaft 17. To prevent collapse of the envelope 1 air may be passed through the tube 17, e.g. by blowing, into the envelope 1 through holes 22 in the tube 17.
Patent GB-788065-A (GB)
Title: Improvements in or relating to wagon tipplers
IPC: B65G67/00
Filed: 1954-10-28
Abstract: 788,065. Driving wagon tippers. GENERAL ELECTRIC CO., Ltd., and MITCHELL, K. J. Oct. 19, 1955 [Oct. 28, 1954], No. 31193/54. Class 78 (4). A wagon tippler is driven by chains 29, Fig. 1, secured to two spaced points on its end frames 1. As illustrated, each chain passes over an idler sprocket 28 and over a sprocket 27 carried by a shaft 26 driven through an hydraulic coupling and a reduction gear (not shown) from a motor which may be positioned centrally of the length of the tippler or outside the end frames. The connection 30 at one end of each chain 29 is adjustable while the connection 31 at the other end is formed by a spring-loaded shock-absorber. Each end frame 1 is mounted outside trunnions 3, Fig. 2, for the tippler cage while the tippler shafts 8 are secured also to part of a bracing frame 5 joining the end frames 1. A top bolster is provided to engage each end wall of a wagon and is carried by a beam 20 mounted on the usual counterweighted bolster frame 19. Spill plates 9 assist in guiding the material into the hopper 10. The invention may be combined with means for weighing the wagons as in Specification 757,028, [Group XXXVIII].