baber/WOPTO huggingface dataset:
Patent GB-1143343-A (GB)
Title: Method and apparatus for determination of the presence of a given quantity of air in steam, for example steam in a sterilizing autoclave
IPC: A61L2/24
Filed: 1966-04-28
Abstract: 1,143,343. Autoclave and control means. ELECTROLUX A.B. 28 April, 1966 [29 April, 1965], No. 18652/66. Heading A5G. The programme of an automatically controlled vacuum-type autoclave is controlled by a device for measuring the quantity of air present in the autoclave atmosphere after one or more steam injection/evacuation cycles. The device is a housing containing two chambers 49 and 50, interconnected at or near their bases, which is connected to a water line via conduit 54, to the evacuating pump via conduit 55 and to the lower part of the autoclave chamber by conduit 48. When in operation, the atmosphere in the autoclave is sampled, the vacuum pump is stopped and the device is isolated by magnetic valves in lines 48 and 54. Water is admitted, which condenses the steam and largely fills the chamber. Any air present remains trapped in the highest part of the device-the "auxiliary" chamber 57, and allows the central electrode 58 to remain isolated from the body of the device. Under these conditions, the programming circuit (Fig. 4, not shown) causes the injection/evacuation cycle to be repeated and the water is released from the measuring device via conduit 48. If the quantity of air present is insufficient to prevent the water level reaching the electrode, an electrical connection is made through the measuring device, which causes the programmer to pass on to the sterilization stage.
Patent GB-279181-A (GB)
Title: Improvements relating to baking ovens
IPC: A21B1/48
Filed: 1926-07-26
Abstract: 279,181. Pelkman, J. H. N. July 26, 1926. Addition to 250,128. Bakers' ovens.-In baking-apparatus according to the parent Specification, a temperature-controlling chamber 27. heated or cooled by any suitable means, is provided between the baking oven 25 and the prover 26, and provision is made for passing through this chamber the tins or trays from which the baked product has been discharged. As shown, an endless convener 28 passes from the charging station 29 backwards and forwards through the prover 26, then along the bottom of the chamber 27, and finally back to the point 29 along the bottom of the prover. A second conveyer 30 passes from the discharging point 31 along the top of the chamber 27 and then in a zig-zag manner through the oven 25. a transfer device 32 being provided to pass tins or trays from one conveyer to the other. The oven and prover are connected by controllable conduits and similar conduits connect, the chamber 27 with both the oven and the prover.
Patent GB-426325-A (GB)
Title: Process for the production of porous objects from metallic oxides
IPC: B01D39/20
Filed: 1933-06-30
Abstract: Porous articles e.g. water filters, Gooch crucibles, plates for surface combustion and fireproof linings are made from refractory oxides which have been ignited, ground and sifted to a definite size, by a process which comprises activating a portion of the sifted material by acid, forming into a paste, adding an amount of sifted but not activated material to form a dough and finally moulding and firing at over 1600 DEG  C.  Oxides mentioned are aluminium, beryllium, chromium, manganese, zirconium, magnesium, and hafnium or mixtures of these oxides.ALSO:Porous articles, e.g. water filters, are made from refractory oxides which have been ignited, ground, and sifted to a definite size, by a process which comprises activating a portion of the sifted material by acid, forming a paste, adding an amount of sifted but not activated material to form a dough, and finally moulding and firing at over 1600 DEG  C.  Oxides mentioned are aluminium, beryllium, chromium, manganese, zirconium magnesium and hafnium or mixtures of these oxides.
Patent GB-728671-A (GB)
Title: Improvements in or relating to voltage comparator circuits for comparing the positions of movable objects
Inventor: HILL RICHARD GEORGE
IPC: G01S13/87
Filed: 1952-07-18
Abstract: 728,671. Potentiometric voltage measurement. WESTINGHOUSE ELECTRIC INTERNATIONAL CO. July 18, 1952, No. 18277/62. Class 37. [Also in Group XL (c)] A voltage comparator circuit for determining the relative positions of plural movable members comprises plural electric discharge tubes each having two grids, two cathodes and two anodes, each grid co-operating with its respective cathode and anode; with plural single coil relays respectively connected between the cathodes of each discharge tube to operate an associated switch mechanism in response to potential differences applied respectively between the two grids of each discharge tube in relative proportional relationship to the respective positions of the movable members. In Fig. 3 a radar search antenna 46 is traversed in azimuth by mechanism 52 and in elevation by mechanism 59 while an associated gun-control radar antenna 45 is similarly traversed by corresponding mechanism 49 and 56. The traversing mechanisms drive corresponding D.C. energized linear potentiometers 51, 58, 48, 55 which develop voltages respectively proportional to the azimuth and elevation positions of the antennae. A pair of duel triode vacuum tubes 40, 41 are arranged to receive on grids 53, 57 and 47, 50 respectively the elevation and azimuth voltages generated by the corresponding pairs of potentiometers 55, 58 and 51, 48 driven from the control and search radar antennae. A sensitive single-acting relay 42 is connected between the cathodes of tube 40 while a snap action polarized relay 43 is connected between the cathodes of tube 41. The relay contacts are connected in parallel so that when either or both is operative the resistance 70 in series with a resistance 67 across the H.T. supply is short-circuited. When both radar antennae correspond both in azimuth and in elevation neither relay is operative and a positive pulse occurs on line 69 to intensity modulate a cathode ray tube so that a trace is exposed bracketing the true position of the gun control antenna.
Patent GB-402875-A (GB)
Title: Improvements in temperature indicator
IPC: G01K5/10
Filed: 1932-07-01
Abstract: 402,875. Pipe joints. KING-SEELEY CORPORATION, Ann Arbor, Michigan, U.S.A. July 1, 1932, No. 18697. Convention date, July 6, 1931. [Class 99 (i).] The brass cap 6 is provided at the inner end with an annular flange 26 having a force fit in the tubular, brass, thermometer bulb 4 and solder is passed into an annular groove 27 in the cap 6 through openings 28 in the tube 4.
Patent GB-1502736-A (GB)
Title: Steam generator for operation with coal firing
IPC: F22B37/20
Filed: 1976-05-07
Abstract: 1502736 Steam generator tube supports KRAFTWERK UNION AG 7 May 1976 [22 May 1975] 18706/76 Heading F4A In a coal-fired steam generator having generally horizontal heating tubes 4-8 arranged above a combustion chamber and supported by generally vertical tubes 11 which are water or steam cooled, the support tubes 11 are arranged in planes transverse to the axes of the heating tubes (Fig. 1) and the spacing of the tubes in these planes (Fig. 2) is less than the spacing between the planes; the tubes being bent, below the level of the lowest heating surface, within the planes to form additional heat exchange surfaces 14, 15. The combustion chamber is defined by upwardly wound evaporation tubes and tubes 8, 5 and 7, 4 and 6 are respectively preheater, reheater, and superheater. A further downward convection pass may be employed. The tubes 11 are secured to transverse beams 10. There can be three additional heat exchange surfaces (Fig. 3, not shown) within each plane.
Patent GB-949411-A (GB)
Title: Improvements in or relating to pressure buffers
Inventor: BLACK JOHN
IPC: B21B31/32
Filed: 1961-05-24
Abstract: 949,411. Rolling. DAVY & UNITED ENGINEERING CO. Ltd. April 13, 1962 [May 24, 1961], No. 18714/61. Heading B3M. [Also in Division F1] A pressure buffer for a rolling mill comprises a piston-and-cylinder assembly 12, 14, a unidirectional valve 15 for permitting fluid under pressure to be supplied to the assembly, and a further valve 16 adjustable from a normallyclosed position to release fluid from the assembly. The buffer may be used to release the screws which drive the upper roll chock 18 of the mill, the buffer having two pistons 14 in cylinder 12 interconnected by a passage 13. The cylinders are supplied with fluid pressure through the unidirectional valve 15 with the valve 16 closed. If the upper roll rises towards a jamming position, the chock 18 raises the pistons 14 to increase the pressure in the cylinders until the movement is arrested. The pressure in the cylinders can be released by opening the valve 16 to unjam the screws, the fluid from the cylinders returning to the supply. A valve is provided to release air from the cylinders when the buffer is being filled with liquid. A pair of buffers may be provided for each screw.
Patent GB-1429884-A (GB)
Title: Process for the activation of catalysts
IPC: C10G45/64
Filed: 1973-04-19
Abstract: 1429884 Hydrocarbon isomerisation catalyst SHELL INTERNATIONALE RESEARCH MAATSCHAPPIJ BV 19 April 1973 [25 April 1972] 18887/73 Heading B1E An isomerisation catalyst comprising one or more platinum group metals on a hydrogenmordenite support is activated by a process wherein the catalyst which initially has a maximum content of 5% wt of water is, firstly, hydrated at a temperature of not more than 150‹C to a water content A (%) above 5% wt and, then, dehydrated at a temperature below 300‹C to a water content of 2-3% wt. The dehydration is effected by passing a gas over the catalyst at an average space velocity C (1. of gas/l. of catalyst/hour at the prevailing pressure) whilst raising the temperature at an average heating-up rate of B (‹C/hour) with the proviso that (a) AÎB/C must be less than 90, and (b) the space velocity of gas at temperatures in excess of 150‹C must be at least 5 (l/l/h). The Examples all relate to platinum or synthetic H-mordenite.
Patent GB-397283-A (GB)
Title: Improvements in or relating to footwear or the like and methods and apparatus for making the same
IPC: A43B23/02
Filed: 1932-07-05
Abstract: 397,283. Moulding boots and shoes ; extrusion-machines. GOODRICH CO., B. F., 37, West 60th Street, New York, U.S.A. -(Assignees of MacDonald, F. J. ; 1862, Beacon Street, Brookline, Massachusetts, U.S.A.) July 5, 1932, No. 18971. Convention date, Dec. 31, 1931. [Class 87 (ii).] Canvas and like fabric-topped boots and shoes are reinforced by moulding plastic material in adhesive engagement with the sheet material over definite portions of the upper and the whole shoe is assembled without stitching. A mould 44, Fig. 22, provided with deeper recesses corresponding to the reinforced portions, is pushed by a ram 50, Fig. 18, under an extrusion machine 48 to receive a sheet of rubber which is so thin at the margins of the reinforcement that the surrounding portions can be peeled off, leaving the reinforcements in the deeper recesses. A shaped sheet of fabric, which may comprise two superposed sheets connected by a rubber cement, is placed over the reinforcements in the mould and partly vulcanized while under pressure in a hydraulic press. An upper is produced thus, having a thickened margin all round the edges and additional thickened portions 33, 35, 36, 37, Figs. 1 and 2. A combined tongue and toepiece, as shown in Fig. 6, is formed by a similar operation. The upper then is eyeleted and assembled round a last together with the tongue and toe-piece and an insole. The margins 37a, Fig. 2, and 38a, Fig. 6, are bent under the last and cemented to the bottom of the insoles. The outsole is secured temporarily by cement to the insole and the whole vulcanized. A toereinforcing strip 42 may be included if necessary. The extrusion-machine has a laterally-adjustable slide at the mouthpiece, positioned by a screw to regulate the width of the outlet.
Patent GB-573579-A (GB)
Title: Improvements in or relating to variable speed gearing
IPC: F16H63/18
Filed: 1943-11-15
Abstract: 573,579. Variable - speed gearing. OWEN, C. A. Nov. 15, 1943, No. 19038. [Class 80 (ii)] A variable-speed gear comprises a driving- shaft 4 which drives a parallel but laterally displaced driven shaft 16 through one of a number of pairs of pinions 10, 11 which are carried by a carrier member 7. The pinions 10 are of different diameters and are all engaged by a gear 5 on the driving-shaft. The pinions 11 are driven by their respective pinions 10 through one-way clutches 13, shown as the helical spring type, which assist in the engagement of these pinions one at a time with an internally toothed gear 17 on the driven shaft 16, when the carrier 7 is rotated to different positions to give different speed ratios, the diameters of the pinions 11 being arranged so that the crests of their teeth lie on a circle concentric with the shaft 4. The position of the carrier 7 is controlled by detents 20 on arms 18 which engage in holes on the periphery of the carrier. The arms 18 are actuated by cams 25 either manually, through lever 31 and gears 33, 34, 38, 41, or automatically, according to the'load, by utilising a spring coupling 63, 64, 65 on the driven shaft 16 and a double train of gears to a differential 74 adapted to operate the cams 25. A changeover lever 55 operates clutches 37, 40 and 44, 46 for manual or automatic operation. In a modified form the carrier 7 is rotatably mounted upon an eccentric on the driven shaft, the shaft 4 including a universal joint to permit the eccentric movement of the carrier. Alternatively, the driven shaft may be moved eccentrically and include a universal joint. A " neutral " position of the carrier may be provided, also a '' reverse " by driving one of the pinions 11 in an opposite direction.
Patent GB-506467-A (GB)
Title: A spring clip for holding flat objects such as serviettes, shop show cards, printed sheets and the like
IPC: A47G21/16
Filed: 1938-06-27
Abstract: 506,467. Clips ; stands. ROONEY, J. W. June 27, 1938, No. 19041. Convention date, June 28, 1937. [Class 44] [Also in Group XIV] A clipping device, which may also take the form of a stand, for holding flat articles such as shop show cards or folded serviettes comprises a length of wire bent to form a frame 1 and an integral gripping member 8 extending inwards from one of the sides of the frame. Member 8 is bent outwards at 9 to accommodate the thickness of the article, then slopes towards the plane of the frame, and terminates in an outwardly bent finger grip 11. It may also carry a plate 12 having a monogram &c. When used for yieldfng articles such as thin paper or serviettes the frame may be partly filled in with a metal plate 3 against which the article is gripped, the edges of the plate being bent over the sides of the frame. Alternatively, when plate 3 is omitted a card may be inserted in the clip with the serviette &c. Fig. 1 shows a rectangular frame. Fig. 3 shows a triangular frame with legs 16, 17 to act as a stand. Where the wires approximate at 15 they may be joined by solder &c.
Patent GB-820028-A (GB)
Title: Improvements in or relating to pressure relief valves
IPC: F16K17/04
Filed: 1956-06-20
Abstract: 820,028. Fluid-actuated valves. STERNE & CO. Ltd., L., and TINSLEY, M. June 20, 1956, No. 19058/56. Class 135. A pressure relief valve 11 has an annular seat 1 on the end of an elongated cylindrical member of resilient material and a second annular seat 3 on the end of an elongated cylindrical member of rigid material coaxial with and supporting the resilient seat and adapted to limit the travel of the valve closure disc 10 in the closed position. The resilient seat stands slightly proud of the rigid seat and is clamped between the cylindrical members 4, 8 with a flange 5 clamped in a recess 7 formed between abutting flanges 6 and 9 of the members 4 and 8.
Patent GB-242010-A (GB)
Title: Improvements in variable electric condensers
Filed: 1924-08-12
Abstract: 242,010. Dunn, W. F., and Tansley, E. A. Aug. 12, 1924. No Patent granted (Sealing fee not paid). Condensers of the kind comprising diametrically opposed plates mounted on a centrallydisposed revoluble spindle coacting with two sets of similar fixed plates, each set of movable plates being electrically connected to a set of fixed plates, have the rotatable element in the form of a pair or pairs of dielectric discs mounted on a spindle, and between the discs a pair or pairs of substantially semi-circular conducting plates are inserted in diametrically opposite positions, the plates being spaced apart from each other and from the spindle and the pair or pairs of discs being secured together. The rotatable element comprises a pair of insulating discs a, a<1> between which are inserted in a pair of conducting plates b, b<1>, spaced apart from each other and from the spindle c, and provided with lugs d, d<1> for attachment of the leads e. The spindle c rotates in a bush c<1> secured to the base by means of a nut c<2> and locking ring c<3>, the discs a, a' being secured thereon by nuts c<4>. The discs engage pairs of stationary plates h, h<1> supported on pins i by means of distance pieces h<2>, nuts i<1> and sleeves i<2>, and preferably cut away at h<4>, h<5> to give a " square law " variation in capacity. For securing the leads e, a pair of insulating discs m, m<3> are clamped against one another with the leads between them, the leads being soldered to the pins i and threaded through holes m<1>, m<2> in the disc m<3>. The leads are helically coiled or otherwise maintained in tension, while two of the pins i may serve as stops i<7> to be engaged by an arm c<5> on the spindle to limit the rotation of the latter to a half-circle.
Patent GB-530859-A (GB)
Title: Improvements in or relating to galvanic dry cells
IPC: H01M4/36
Filed: 1939-07-01
Abstract: 530,859. Galvanic batteries. MARHENKEL, E. July 1, 1939, No. 19234. Convention date, July 6, 1938. [Class 53] In a dry cell, the electrolyte paste on one electrode is caused by pressure, either selfgenerated or provided manually, to penetrate deeper into a de-polarizing layer as the battery is used. The de-polarizer is particularly atmospheric oxygen in active carbon, with or without indigo white, cerium salts &c. though de-polarizers of the perbolate or persulphate type may be used. In the example, an electrolyte paste E containing ammonium chloride, zinc chloride and wheat flour rests on a zinc trough Z in an insulating casing B. The carbon electrode K is in the upper part of the casing, which is perforated as at L for admission of atmospheric oxygen. The space D is filled with a de-polarizer such as a mixture of active carbon graphite and ammonium chloride. Pressure rises in the cell owing to expansion in use, but in addition a screw S may be provided to force the zinc plate Z upwards.
Patent GB-962035-A (GB)
Title: Coding apparatus
IPC: B41J3/50
Filed: 1962-05-18
Abstract: 962, 035. Code converters. FAIRCHILD CAMERA & INSTRUMENT CORPORATION. May 18, 1962 [June 5, 1961], No. 19273/62. Heading G4H. A coding apparatus comprises a plurality of groups of switches and a plurality of matrices, each input conductor of one matrix being connected to an output contact of one switch in each group while each input conductor of each of the other matrices is connected to an output contact of every switch in at least one group. In the embodiment shown eight groups A-H of eight switches 1-64 are connected to two matrices 100 and 101. Each of the input conductors 100a of the matrix 100 is connected to one lower contact 70a of a switch in each group so that the third conductor for example is connected to the third switch in each group. The input conductors are connected in accordance with a predetermined code with three output conductors 100b each containing a control device R 1 -R 3 . Each of the input conductors 101a of the matrix 101 is connected to the upper contacts 70b of a group A, B, C, D, E, F, G or H of switches. Its outputs go to relays R 4 -R 6 . When a single one of the switches 1-64 is closed e.g. by depression of a typewriter key a predetermined combination of the control devices R 1 -R 3  are energized by a battery 72 to indicate which key in a group is depressed while the control devices R 4 -R 6  are energized to indicate which group the key is in. If the apparatus is used to indicate the width of type in a type-setting arrangement the control devices R 1 -R 6  may operate the denominations of a counter. A plurality of sets of apparatus similar to the one described may be arranged in conjunction with a third matrix which indicates the set.
Patent GB-721245-A (GB)
Title: Piston and casting process and machine
Inventor: VENNER WILLIAM MAYNE
IPC: B22D15/02
Filed: 1952-07-30
Abstract: 721,245. Casting-machines. STERLING ALUMINIUM PRODUCTS, Inc. July 30, 1952, No. 19278/52. Class 83 (1). In a method of casting aluminium and magnesium trunk-pistons head up, the core is automatically withdrawn a predetermined period of time after completion of the pouring of the metal into the mould and before the metal shrinks on to the core. Two mould assemblies 11, 110, mounted on a carrier 10, rotatable on a thrust bearing 50 by a motor 56 through gearing 53, 54, each comprise mould sections 14 slidable laterally on a base 12 by cylinders 16, and a central core 23 movable vertically by a cylinder 20. Side cores 26 cooperating with each central core 23 are actuated by levers 27 moving in slots 28. Fluid connections to the operating cylinders for each mould assembly are connected to a valve 30 whose piston stem 37 may be manually operated by a lever 38, to open or close the mould and raise or lower the core 23. Associated with each valve 30 is a solenoid 46, whose plunger 47 is connected to the valve stem 37, and an electrical timer 42. In operation, the operator closes the mould assembly in front of him by depression of the lever 38, pours metal therein and then operates a switch 43 by a push button 44, thus energizing the appropriate timer 42 and the motor 56, so that the carrier 10 rotates through 180 degrees to move the filled mould away while the second mould assembly moves into position for pouring. The rotation of the carrier is controlled by limit switches thereon actuated by a cam on a stationary base plate 52. After a predetermined period for which the timer has been set, the associated relay 45 energizes the solenoid 46 to thereby actuate the valve 30 and open the mould and withdraw the core. After filling the second mould, a further operation of the push button 44 causes the table to rotate through 180 degrees in the opposite direction to carry the newly filled mould away and return the opened mould to the operator for removal of the piston and a further pouring. A push button enables the oscillation of the table to be halted at any time. Specification 422,599 is referred to.
Patent GB-1085330-A (GB)
Title: Improvements in bearings
Inventor: DAVIS CECIL JAMES
IPC: F16C33/10
Filed: 1965-05-07
Abstract: 1,085,330. Bearings; lubricating. MYCALEX (MOTORS) Ltd. April 15, 1966 [May 7, 1965], No. 19351/65. Heading F2A. The bearings of an electric motor are lubricated by oil which is circulated through oilabsorbent material and through a porous selfaligning bearing. In an embodiment, a shaft 4 of an electric motor is supported by a selfaligning bearing 5 of sintered material. The bearing 5 is held against a seating 17 of the housing 1 by a metal ring 18 being urged by a resilient ring 19 which abuts a cover-plate 11. The shaft 4 has a spacer 8 and throwers and thrust washers 9, 10, 14 and 22 mounted thereon. In use, oil supplied through an inlet 25 is received by felt oil-retainers 16 and 21 and is passed through the bearing 5 to the shaft 4. The oil is returned to the felt oil-retainers 16 and 21 via the throwers, the inner wall of the cover-plate 11 and drainage channels 15 and 24.