baber/WOPTO huggingface dataset:
Patent GB-498268-A (GB)
Title: Improvements in or relating to devices for regulating the speed ratio of two shafts
IPC: G05D13/00
Filed: 1937-12-14
Abstract: 498,268. Fluid-pressure servomotorcontrol systems. SIEMENS & HALSKE AKT.-GES. Dec. 14, 1937, Nos. 34640 and 34641. Convention dates, Dec. 15, 1936 and Nov. 23, 1937. [Class 135] The speeds of two shafts 4, 5 are maintained equal by coupling them to a differential gear 6 which, when a difference in speed arises, actuates a movable vane 7 controlling the escape of a pressure fluid from a nozzle S to regulate the pressure in a pipe or container between the nozzle and a throttle 8a, which operates a valve 8b to effect a control of the speed of one or both of the shafts 4 and 5. As shown the mechanism maintains equal or proportionate fluid flows in two conduits, which flows are measured by meters 1 and 2 from which the shafts 4 and 5 are driven, the valve 8b controlling the flow in one of the conduits and therefore the speed of the corresponding meter shaft. In a modified arrangement in which the two fluid flows are mixed a single valve controls both of the fluids. A spring mechanism 9 may be inserted in one of the drives to the differential to provide a resilient drive which will give when the control vane 7 comes into contact with the nozzle 8.
Patent GB-890915-A (GB)
Title: Improvements relating to electromagnetic relays
IPC: H01H50/58
Filed: 1958-10-29
Abstract: 890,915. Electromagnetic relays. WESTINGHOUSE AIR BRAKE CO. Dot. 29, 1958 [Oct. 29, 1957], No. 34683/58. Class 38 (5). The contact stack of a relay has a single fixing bolt passing through aligned apertures in the insulating wafers between the contact springs and is arranged so that the bolt only need be loosened for removal or replacement of a spring. As shown, the bolt 77 passes through a spring washer 79, a pressure-plate 81, between returnsprings 37, and through an insulator 82 and the wafers 85 which retain between them contactsprings 42, 43, 46 (not shown) on both sides of the bolt. The bolt also passes through an insulating moulding 23 and screws into the rear portion 17 of an E-shaped core having the coil 11  on its centre limb 14. Each wafer 85 has projections 87 and recesses 89 for location with each other and the moulding 23 is recessed at 90 to receive the projectors 87 of the bottom wafer. The wafers are also recessed at 86 (Fig. 6) so that each spring is gripped in two areas a and b or c and d whilst it is located by arcuate notches 91 engaging the sides of the projections 87. A flat spring 30 clamped between the portion 17 and moulding 23 has two parallel limbs which are secured to the ends of a U-shaped armature 27 having its limbs 27a overlying the outer limbs 13, 15 of the core and its blight across the ends of the limbs 13, 14, 15. The armature 27 fits in slots 35 in a contact actuating ladder 45; movement is limited by the engagement of its end against the upper and lower surfaces 60 and 61 of a rectangular slot in a support-plate 50 carrying the ladder 49 supporting the fixed contacts 42, 44. The latter are biased downward and hold the plate 50 against an insulating plate 63 with projections 67 engaging in slots. An angle-section spacer 68 may be inserted with parts 70 between the plates 50 and 63 to set the positions of the armature 37 and ladder 49. The relay may be mounted on parallel bars 96 with a screw 97 in a clamp 98 entering a threaded part 99 in the moulding 23 which also has flanges 95 for engaging the bars 96.
Patent GB-1478210-A (GB)
Title: Apparatus for the extraction of at least one component from a material and agglomeration of the particulate residue thereof
IPC: B01D11/02
Filed: 1975-08-21
Abstract: 1478210 Extraction apparatus CANADIAN PATENTS & DEVELOPMENT Ltd 21 Aug 1975 [29 Aug 1974] 34770/75 Heading B1Q Apparatus for the removal of at least one component from a solid particulate material and agglomeration of the particulate residue thereof, comprises: a) a drum (1) comprising a side wall which is annular in cross-section, with a substantial lengthwise portion of the cross-sectional area of the drum interior tapering longitudinally in a horizontal direction, an end wall (4) extending across the larger end of the drum, a first port (6) at the smaller end of the drum, and a second port (8) in the end wall, b) drum mounting and rotating means (10) which mounts the drum so that liquid will overflow from the drum interior through the first port, and for rotating the drum about the longitudinal axis thereof, c) conveying means (16), extending through the first port for conveying solid particulate material and agglomerating liquid therethrough to an intermediate longitudinal portion of the drum interior, and d) liquid delivering means (22), for directing a component extracting liquid, with which the agglomerating liquid is immiscible, into a portion of the drum interior adjacent the second port, and whereby e) with the drum rotating, the conveying means transporting the material and agglomerating liquid to the drum interior, and the liquid delivering means directing component extracting liquid into the drum interior, ball agglomerates (21) of a particulate residue of the material are formed in the drum and overflow from the drum through the second port, while component extracting liquid extracts at least one component, from the material in the drum, and overflows therewith through the first port. The separation of bitumen from tar sands is referred to.
Patent GB-1484374-A (GB)
Title: Process for reactivation of iridium-containing catalysts
IPC: C10G47/12
Filed: 1974-08-07
Abstract: 1484374 Regenerating iridium catalysts EXXON RESEARCH & ENG CO 7 Aug 1974 [16 Aug 1973] 34773/74 Heading B1E [Also in Division C5] A catalyst comprising an iridium component on a porous inorganic oxide support which has been deactivated by use in a hydrocarbon conversion process is reactivated by (i) contacting a bed of the catalyst with a gas mixture containing free oxygen at elevated temperature to burn off carbon, the duration of the contact being insufficient to convert more than 70 %wt of the iridium. to agglomerates of a crystallite size greater than 50A; (ii) contacting the decarbonised catalyst (without any intermediate contact with a halogen-free. free oxygen-containing gas at a temperature sufficient to further agglomerate the iridium) with a reducing gas, e.g. hydrogen, at elevated temperature to reduce at least a part of the iridium to the metallic form; (iii) contacting the reduced catalyst with a substantially oxygen-free, free halogen-containing or-providing gas at at least 850F until the halogen outlet concentration from the catalyst equals the inlet concentration; (iv) contacting the halogenated catalyst with a reducing gas, e.g. hydrogen, at elevated temperature to reduce at least some iridium to the metallic form; and (v) contacting the reduced catalyst with a free halogencontaining or-providing gas which may contain oxygen at at least 850F for a time as specified in step (iii). Steps (iv) and (v) may be repeated, in sequence one or more times. The reduction steps may be carried out at 400-1100F and the halogenation steps at 850-1150F using a chlorine-containing gas having a halogen concentration of 0.01 - 10 mole%. The catalyst suitably comprises 0.1-3 %wt Ir, 0.1-3 wt% Pt and a halogen, e.g. chlorine, an alumina. Reference is made to U.K. Specifications 1433864, 1484371, 1484372, 1484373, 1484375, 1484376 and 1484377.
Patent GB-1070972-A (GB)
Title: Improvements in outer footwear
Inventor: SHARP CHARLES PHILLIP
IPC: A43B23/08
Filed: 1963-09-03
Abstract: 1,070,972. Boots &c. JOWERS, HOLLAND & CO. Ltd. Sept. 3, 1964 [Sept. 3, 1963], No. 34801/63. Heading A3B. A shoe is made by cutting out a blank of upper material which includes the vamp B and a partial insole A, folding the partial insole A across the vamp B and joining the edge 10 to the edge 11 along a seam which extends along one side of the shoe. The rear of the upper is closed, and the upper, together with a counter stiffener, counter lining and a rearpart insole (not shown) are assembled on a last and the rearpart is lasted. The shoe is then finished in the conventional manner by the addition of an outsole and heel.
Patent GB-752781-A (GB)
Title: Improvements in or relating to grids or gratings for drainage gullies
IPC: E03F5/06
Filed: 1954-12-02
Abstract: 752,781. Road surface boxes gratings. Mc- LELLA.N, C. E. Dec. 2, 1954, No. 34880/54. Class 107. A grid for a drainage gully &c. is supported in an aperture in the middle of a support plate a on ledges g provided on deepened parts f of the sides b of the support member. The grid comprises side bars h<SP>2</SP> with channels h<SP>4</SP> to allow water to wash away any sediment that otherwise would collect in the seating. Triangular projections h<SP>5</SP> and e<SP>1</SP> deflect water flowing onto them into the gully. The support plate a is formed with downwardly projecting webs forming a series of recesses on the underside. Specification 574,343 is referred to.
Patent GB-393991-A (GB)
Title: Improvements in and relating to transformer power regulation
IPC: H01F29/10
Filed: 1931-12-17
Abstract: 393,991. Transformers ; choking- coils. GILSON, R. F., 6, Lancaster Road, and WATSON, H. R., 33, Effra Road, both in Wimbledon, London. Dec. 17, 1931, No. 34937. [Class 38 (ii).] A variable transformer or choking-coil is provided with a movable magnetic shunt d held in contact with extension pieces a, b on the core c by a spring e, the pressure of which can be adjusted by means of a plate f and nuts g. The shunt is provided with a screw j co-operating with a nut h outside the casing m for varying the reluctance of the shunt circuit. The shunt may be separated from the extension pieces by a layer of non-ferrous material.
Patent GB-1272705-A (GB)
Title: IMPROVED COMPOSITION CURABLE THROUGH Si-H AND Si-CH=CH2
Inventor: POLMANTEER KEITH EARL
IPC: C08L83/04
Filed: 1970-07-21
Abstract: 1,272,705. Silicone rubber stock containing two types of organo-hydrogen siloxane. DOW CORNING CORP. 21 July, 1970 [21 Aug., 1969], No. 35183/70. Heading C3T. A silicone rubber stock comprises (A) a polydiorganosiloxane having two vinyl radicals per molecule, on different Si atoms, the remaining organic radicals being methyl (at least 50%), ethyl, phenyl or trifluoropropyl radicals, and having triorganosiloxane end units and a viscosity of 100-10,000 cp/25‹ C., and (B) a mixture of compounds providing 0À75-1À25 Sibonded H atoms per vinyl radical of (A) and comprising (1) an organosiloxane of no more than 500 Si atoms having 2 Si-bonded H atoms per molecule, on different Si atoms, the organic radicals being methyl, ethyl, phenyl or trifluoropropyl radicals, and (2) an organosiloxane of no more than 75 Si atoms having 3-10 SiH groups per molecule, on different Si atoms, the organic radicals being methyl, ethyl, phenyl or trifluoropropyl radicals, the ratio of SiH groups provided by (1) to those provided by (2) being between 1 : 9 and 9 : 1. The composition may also contain a Pt catalyst for the Si-H/vinyl radical reaction and an inhibitor for the Pt catalyst and other conventional additives, e.g. fillers and pigments. In examples compositions are prepared containing (A) a vinyl-terminated dimethylpolysiloxane of 1280 or 424 cps/25‹ C., (1) HMe 2 SiO(Me 2 SiO) 10 SiMe 2 H or Me 3 SiO(HMeSiO) 2 SiMe 3  and (2) Me 3 SiO(Me 2 SiO) 5 (HMeSiO) 3 SiMe 3  or Me 3 SiO(Me 2 SiO) 3 (HMeSiO ) 5 SiMe 3  or Me 3 SiO(HMeSiO) 4 SiMe 3  or Si(OSiMe 2 H) 4  or Me 3 SiO(MeHSiO) 3 SiMe 3  or C 6 H 5 Si(OSiMe 2 H) 3  with a treated fume silica of 250 or 400 m.<SP>2</SP>/g. and optionally 5 Á ground quartz; they are cured with a catalyst of H 2 PtCl 6  in a polydimethylsiloxane liquid.
Patent GB-522167-A (GB)
Title: Improvements in or relating to sliding clasp fasteners
IPC: A44B19/06
Filed: 1938-12-02
Abstract: 522,167. Sliding-clasp fastenings. STEIN, M. Dec. 2, 1938. No. 35188. Convention date, Dec. 2, 1937. [Class 44] Sliding-clasp fasteners are made by threading the fastener elements along the beaded edges of the tapes the requisite spacing being obtained by threading intervening distance pieces on the tape or, as shown, the bases 10 of the elements may be suitably extended. To permit small dimension of the slider 4 the elements are formed with projecting ribs 6 guided by the slider. The elements may be of glass or other artificial material.
Patent GB-800451-A (GB)
Title: Improvements relating to the manufacture of lengths of synthetic plastic material
Inventor: DEAKIN STANLEY THOMAS
IPC: B29B11/12
Filed: 1953-12-17
Abstract: 800,451. Moulding pofytetraffuoroethylene &c. SIEMENS EDISON SWAN, Ltd. Dec. 8, 1954 [Dec. 17, 1953], No. 35203 /53. Class 87(2). Powdered polytetrafluoroethylene is cold pressed to make preforms which are then placed end to end, subjected to a radial pressure and sintered. As applied to covering a wire 29, Fig. 1, the material is blown by compressed air fed through pipes 6 from a supply vessel 5 into a hopper 7. A ram 17 is lowered by cams engaging rollers 19 to press the material against a member 11 which at a predetermined pressure moves down against counterweights 15 and by the action of pins 20 working in slots 21 the member 11 is opened out to allow the compacted material to be forced into contact with the previously compacted material 22. The material is then finally shaped by annular diaphragms 23, 24 to which fluid pressure is supplied through pipes 27. The fluid pressure may be such as to vibrate the diaphragm at a supersonic frequency. The material is sintered at 30. In a modification, Fig. 2, a tube is formed by providing a pipe 32 through which fluid pressure may be supplied to a rubber container 34 to apply pressure, which may also vary at a supersonic frequency, to the material. Alternatively the pressure may be applied externally or both internally and externally. In this construction the counterweights are replaced by springs 38, and the ram arms 40 are formed with telescopic sections held apart by springs 43, to allow the ram to continue its downward movement, after the springs 38 have been compressed. Specification 800,452 is referred to.
Patent GB-388892-A (GB)
Title: Improvements relating to sieve brushes
IPC: B07B1/52
Filed: 1931-12-21
Abstract: 388,892. Sifting-apparatus. ROBINSON, W. N. and ROBINSON & SON, Ltd., T., Railway Works, Rochdale. Dec. 21, 1931, No. 35278. [Class 117.] Relates to sieve-brushing apparatus of the kind in which the brush stock m carries two angularly disposed brushes g, j and is automatically tilted at the end of each traverse to reverse the movement of the brush under the action of the sieve movement, and consists in the provision of a holder c with a flat base and side guide a of V-shape, a guide rail b having upwardly inclined ends f, f<1> and a lower parallel guide surface d which has downwardly inclined ends e, e<1> and functions to maintain the brush in its alternately oppositely inclined positions. The guides a may be provided on one or both sides of the rail b. Alternatively the guide may be centrally disposed in relation to the surface c and engage in a slot in the rail. In the case of multiple section sieves, the guide rails of all the sections may be incorporated in a single bar attached at its ends to the frame carrying the sieves. 388,924. Grinding asbestos. TURNERS ASBESTOS CEMENT, Ltd., Spotland, Rochdale.-(Soc. Anon. Francaise Eternit ; Prouvy-Thiant, Nord, France.) Feb. 18, 1932, No. 4814. [Class 59.] The raw material in the preparation of chrysotile asbestos fibres is wetted for a sufficient time to cause it to swell prior to wet treatment in a grinding, crushing, or breaking machine. The material may be immersed in or sprayed with water or subjected to water jets as it passes on an endless conveyer to the crushing machine &c., water may also be sprayed on the material in the machine.
Patent GB-430705-A (GB)
Title: Improvements in or relating to cups and saucers
IPC: A47G19/22
Filed: 1934-12-08
Abstract: 430,705. Drinking - vessels ; saucers. N. B. MOULDINGS, Ltd., and BELL, E. C., Tremlett Grove, Highgate, London. Dec. 8, 1934, No. 35369. [Class 128] In a combination set comprising a cup and saucer the cup is provided with a circumferential annular rim at a point approximately at the middle of its exterior wall, which rim is adapted to engage over and interlock with an annular protuberance provided on the base of the saucer, whereby tilting movement between the two parts is prevented. As shown the saucer is provided with a handle and has its bottom surface flat to prevent tilting.
Patent GB-824787-A (GB)
Title: Adjustable control apparatus
Inventor: DRANSFIELD ALFRED EDWARD
IPC: G05G1/00
Filed: 1956-11-19
Abstract: 824,787. Linkwork. NAPIER & SON Ltd., D. Nov. 13, 1957 [Nov. 19, 1956], No. 35373/56. Class 80 (3). [Also in Group XXVII] An adjustable linkage adapted to vary the relative intermediate positions of a controlling member 7 and a controlled member 8 whilst not affecting the relative positions at the extreme limits of movement, and particularly applicable to the engine throttle control of a multi-engine aircraft, comprises a floating link 14 coupled at C and 11 to the pivoted members 7 and 8 respectively. The link 14 is also pivoted on a movable pivot B at one end of a link 3 which is mounted at its other end on a pivot D carried by a rotary adjusting member 2 having an axis A. The pivot B is arranged so that its arc of movement always passes through the axis A but is altered with the adjustment of member 2 which can be suitably locked in adjusted position. Thus, in an engine throttle control the " ground-idle " position of lever 8 can be adjusted over the range indicated relative to the lever 7 by rotary adjustment of member 2 while the " full power " and " start " relative positions are unaffected.
Patent GB-934087-A (GB)
Title: Method of manufacturing water soluble polyvinyl alcohol derivatives
IPC: C08F8/30
Filed: 1961-10-02
Abstract: In a method of making water-soluble polyvinyl alcohol derivatives, a mixture of polyvinyl alcohol (containing at least 50 mol. per cent of vinyl alcohol units), 2 to 50% by weight of the polyvinyl alcohol of urea, and up to 8% by weight of the polyvinyl alcohol of water or organic solvent is heated at 150 DEG  to 230 DEG C. under conditions such that air is not supplied to the mixture, and preferably in an inert atmosphere.  The polyvinyl alcohol is preferably in powder form, and may be mixed with an aqueous or organic solvent solution of the urea, or with powdered urea.  The products may be used in sizes and finishing agents, and in the manufacture of water-soluble films. Specification 934,086 is referred to.
Patent GB-940307-A (GB)
Title: Improvements in or relating to bags
Inventor: BLACK PETER
IPC: A45C3/00
Filed: 1961-10-02
Abstract: 940,307. Bags. PETER BLACK (KEIGHLEY) Ltd. Sept. 25, 1962 [Oct. 2, 1961], No. 35498/61. Heading A4G. The base of a shopping or like bag is stiffened by a piece of cardboard 8 and scored along a line 12 to allow the bag to be folded. Alternatively the stiffening member may be in two pieces secured together by a strip of textile material.
Patent GB-1196875-A (GB)
Title: Improvements in or relating to Polishing Machines.
IPC: B24B37/10
Filed: 1968-07-25
Abstract: 1,196,875. Polishing. SPEEDFAM CORP. 25 July, 1968 [10 Aug., 1967], No. 35587/68. Heading B3D. A polishing machine comprises a polishing wheel assembly 44 mounted on a vertical axis on a frame work 12, at least one vertically movable spindle 60 supported above the assembly 44, a generally horizontal pressure disc 64 connected to the spindle and having engagement means 66 on its lower surface, and a generally horizontal load plate 82 having workpieces 84 affected to its lower surface for engaging the wheel assembly 44 and means 86 on its upper surface intermediate its centre and outer periphery engaging the means 66, the pressure disc being vertically movable with the spindle is that the means 66, 86 may be selectively engaged. The polishing wheel assembly 44 consists of a cloth or felt-layer 46 retained by a ring 52 or glue on an annular backing wheel 46 driven through a speed reducer 34 from a motor 32 mounted in the framework 12. Posts 16 are upstanding from the framework and support a bridge 18 formed with arms 20 carrying pneumatic piston-and-cylinder devices 22. Each device has a rod 26 secured to a spindle 60 formed with a collar 62. The lower end of each spindle has a universal joint connection 72 to a pressure plate 64. A depressing ridge 66 on the pressure plate is received within an annular groove 86 in hood plate 82, the lower surface of which has the workpieces 84 secured thereto. The groove 86 is formed at a radius equal to one-half of the radius of the hood plate. When the spindles 60 and wood plates are raised by the devices 22 to positions determined by the collars 62, the ridges disengages the grooves to permit removal of the load plates a polishing mixture, such as iron oxide, ceraium oxide or zirconium oxide susa pump 58 to a spout 54 and returned by way of a drip pan 30. A shroud 88 surrounds the polishing wheel assembly and is located by three posts 92 each of which engages a cut out 94 formed with two flats 100, 102 connected by a ramp 106 whereby, upon rotations of the shroud by handles 108, the height of the shroud can be adjusted from a lower position during fitting and removal of the load plates to an upper positiion during the polishing operation. The plane of the shroud may be adjusted relative to the polishing wheel by means of cams 98 on the posts 92.
Patent GB-1363916-A (GB)
Title: Process for the preparation of percarboxylic acids
IPC: C07C407/00
Filed: 1971-07-29
Abstract: 1363916 Percarboxylic acids BAYER AG 29 July 1971 [1 Aug 1970] 35735/71 Heading C2C A percarboxylic acid or a solution thereof is prepared by reacting a carboxylic acid or anhydride with dilute aqueous hydrogen peroxide containing a phosphorus compound of the formula wherein, X, Y, Z may be the same or different and represent an oxygen group, an N-C 1 -C 6  alkyl, or an N-C 4 -C 7  cycloalkyl group, m, n and p represent 0 or 1, R 1 , R 2 , R 3  which may be the same or different represent straight chain or branched C 1 -C 6  alkyl, or C 4 -C 6  cycloalkyl optionally substituted with halogen, OH-, C 1 -C 4  alkoxy, CN, or phenyl; or one or more of R 1 , R 2 , R 3  may represent phenyl radical optionally substituted with halogen, OH, C 1 -C 4  alkyl, C 1 -C 4  alkoxy, carbo-C 1 -C 3  alkoxy or CN; R 1  together with R 2  or R 1  together with R 3  or R 2  together with R 3  may represent an alkylene radical so that either a 5- to 7-membered heterocyclic ring which contains 3 hetero atoms or a 5- to 7- membered ring which contains phorphorus, and optionally an inert diluent. The water present is optionally removed partially or completely and the mixture is reacted with the carboxylic acid and/or anhydride at from - 20 to 100 C. and the water removed and the product isolated. Examples describe the perparation of peracetic and perpropionic acids in the presence of dimethyl ester of methane phosphonic acid, #-cyanoethyl phosphonic acid, triethyl phosphate, hexamethyl phosphonic acid triamide, tetramethyl methane phosphonic acid diamide, 1-methyl-1-oxophospholane, and 1 -methoxy- 1 - oxophospholane. Lists of suitable phosphorus compounds are included.