baber/WOPTO huggingface dataset:
Patent GB-974762-A (GB)
Title: Improvements in or relating to methods of making grids
Inventor: NEWTON GEORGE CHARLES
IPC: H01J19/00
Filed: 1960-03-03
Abstract: 974,762. Making grids for discharge tubes; coiling; corrugating; brazing. ELECTRIC & MUSICAL INDUSTRIES Ltd. Feb. 24, 1961 [March 3, 1960], No. 7482/60. Headings B3A, B3E and B3R. [Also in Division H1] A grid for use in a discharge tube comprises a length of tape, the longitudinal edges of which are curved in the same sense in the plane of the tape, wound into a spiral with the major surfaces of the tape inclined to the axis of the spiral. As shown, a flat tape 1, Fig. 2, a corrugated tape 2 of annealed copper, 0.001 inch thick and 0.1 inch wide, are spirally wound on a partspherical former 3. The tapes may be silverplated so that after winding, the grid may be encircled by a support ring and brazed in an inert or reducing atmosphere. The longitudinal edges of the tapes 1, 2 should have a radius of curvature in the plane of the tape equal to the radius of curvature of the former 3, so that after winding the major surfaces of the tapes converge towards the centre of curvature of the former 3. The edges of the tapes may be curved by reducing the thickness of one edge relatively to the other edge by use of a table 5, Fig. 3, having a recessed edge 6 along which the tape is caused to lie by moving a flanged roller 7 around it as shown. Alternatively, a length of flat tape may be pressed between a pair of conical rollers 14, 15, Fig. 6, or between a pair of cylindrical rollers having their axes inclined to each other. The tape 2 may be formed by pressing it between a pair of intermeshing corrugated rollers 10, 11, Fig. 5, the axes of which are inclined to each other. Specification 964,262 is referred to.
Patent GB-291551-A (GB)
Title: Improvements in tubular heat exchangers
IPC: B01D1/04
Filed: 1927-03-18
Abstract: 291,551. Contraflo Engineering Co., Ltd., and Gunn, J. March 18, 1927. Plates, jointing tubes to.-The tubes, e of an evaporator &c., are connected to the tube plates h, h<1>, thereof by means of coupling-pieces l in the form of bolts which are secured to or formed integral with the ends of the tubes and project through holes in the tube plates. The head of each bolt l forms a shoulder which abuts against the inner side of the tube plate, while the outer screwed end thereof receives a nut n which bears against the outer side preferably with the interposition of packing p. The holes in the plate h<1> are made slightly larger than the heads of the coupling-pieces l and receive annular screwed members m which have an internal diameter equal to the holes in the plate h, so that upon removal of the nuts n and member m any tube may be withdrawn. The tubes may be slightly curved or provided with a bellows piece o, Fig. 4, in order to take up any expansion or contraction thereof, and, with the latter construction, the tubes are preferably inclined to prevent accumulation of water in said bellows piece.
Patent GB-274536-A (GB)
Title: Improvements in electric controlling apparatus for supplying current to electric nets
Filed: 1926-03-18
Abstract: 274,536. Stephens, A. J., (Solomon, J.). March 18, 1926. Switching-systems.-An electric distribution system comprising main supply station I and auxiliary station II, Fig. 2, has the load circuits entering the stations 11 divided into two groups, the group of circuits 6 being those connected most directly to other stations, and the group 7 being the remaining circuits. The operation of each auxiliary station is controlled automatically by a minimum relay 9, Fig. 1, for shutting down the transformer 1 when the load thereon falls, and a maximum relav 10 in the circuits 7 for switching in the transformer when the load on these circuits rises. Alternatively the relay 10 may be replaced by a counter-current relay in the circuits 6, or the relays 9 and 10 may be combined into a single two-contact relay in the circuits 7. In all cases the relays control the switch operating mechanism 4 by using current derived from the station bus-bar 5.
Patent GB-557821-A (GB)
Title: Improvements in or relating to hydraulic circuits adapted for use with machine tools
IPC: B23Q5/26
Filed: 1942-06-03
Abstract: 557,821. Swash-plate pumps. WAHLMARK, G. A. June 3, 1942, No. 7570. Convention date, Sept. 15, 1941. [Class 102 (i)] [Also in Group XXIX] In a hydraulic transmission device the main pump P, Fig. 1, preferably of the swash-plate type, is associated with an auxiliary pump MP for supplying make up and control fluid is constructed with means such as a control valve 155 responsive to the pressure of fluid discharged by the main pump P for governing the pressure of the fluid discharged by the auxiliary pump MP. The invention is described in connection with a transmission in which the swash-plate pump P is constructed and controlled in a manner similar to the pump set forth in Specification 557,822 the inclination of the swashplate being controlled by a sliding cam member 51 and a sliding cylinder 57 which is moved longitudinally relatively to a fixed piston 55 under the control of liquid admitted selectively to either side of the piston under control of a valve 190 from the casing of which pipes 268, 269 have communication to the opposite ends of the cylinder. The pump pistons 16 discharge through outlets 15, and the discharge is controlled by a spoked valve 42 mounted eccentrically of the kind described in Specification 516,721, [Group XXIX], and the discharge passes alternately to chambers 12 or 48, from which the liquid is directed under control of a similar valve to the inlets of a swash-plate motor M. The pressure of the fluid discharged by the pump MP which is preferably a gear pump of the kind described in Specification 516,565, [Group XXIX], is controlled by means responsive to the pressure of the fluid discharged by the pump P, and to this end pipes 255, 256 leading from the chambers 12, 48 are connected to the cylinders of differential pistons 175, 176 forming part of a pressure regulating valve 155 which comprises a piston 172 in a cylinder 169 in constant connection with the discharge pipe 251 of the pump MP. The valve 155 closes under the action of a spring 174 and by the action of the pressure fluid of the pump on the annular end of the piston 175 or on the end of the piston 176. The pressure is relieved by opening of the valve 172 when the required pressure is reached. The pressure on the cam member 51 thus varies with the pump pressure and is always adequate to keep the cam member 51 in contact with the swash-plate 37. Specification 557,834, [Group XXIX], is referred to.
Patent GB-492181-A (GB)
Title: Improvements in or relating to the manufacture of fibrous sheets
IPC: B29C70/06
Filed: 1937-03-15
Abstract: Fibrous sheets or webs are made from chlorinated rubber by forming a slurry of fibrous chlorinated rubber, which may be produced as described in Specification 402,454, in water or other non-solvent for the chlorinated rubber, delivering the slurry on to a fine meshed gauze or like porous backing, draining off the liquid and subsequently drying the sheet or layer so formed.  The concentration of the slurry is preferably less than 2 per cent. Small amounts of a binding agent may be added, e.g. ,01-1 per cent calculated on the slurry, of water glass, glue, gelatine or an alkyl cellulose such as methyl cellulose, or up to 5 per cent of rubber latex.  Other fibrous materials, e.g. asbestos, paper pulp, manilla pulp, in amounts up to 10 per cent of the chlorinated rubber may also be incorporated.  In an example, 20 parts of fibrous chlorinated rubber were added to 1000 parts of water and the mixture agitated for two hours to produce a homogeneous slurry.  1000 parts of water and 20 parts of latex were added and the resulting slurry was poured on a 250 mesh screen at the rate of 6 lb. per sq. foot to produce an even layer. As much liquid as possible was sucked through and the layer was removed from the screen and dried in a current of air at 50 DEG  C. The dried sheet was a felt-like material about 5 mms. thick. Sheets formed by the process may be pressed or rolled before or after drying, greater pressure, e.g. up to 100 lb. per sq.in., producing a parchment-like product.  A composite board having a low density interior protected by less permeable more resistant surfaces may be made by first forming two sheets as far as the pressing stage, pouring a layer of slurry on one of the sheets, draining, and then applying the second sheet and consolidating by light pressure.
Patent GB-482173-A (GB)
Title: Improvements in or relating to carburettors
IPC: F02M7/22
Filed: 1937-03-15
Abstract: 482,173. Spray carburetters. RASCH, L., and HENRIKSEN, D. March 15, 1937, No. 7597. [Class 7 (iii)] The length of a narrow annular slot through which fuel is supplied to the mixing Chamber is regulated simultaneously with the amount of air passing the slot. In the downdraught carburetter shown in Fig. 1, fuel, fed from a floatchamber 2 through passages 9, 8, 10 to an annular chamber 11 is discharged through a slot 16. The slot is formed between a member 5 secured to the carburetter body 4 and a member 12 which is held by a spring 15, against a nut 14 screwed on to a stem 13 projecting from the member 5. Rotary movement between the members 5, 12 and the body 4 is prevented by pins 17, 18. The width of the slot can be adjusted from the outside of the carburetter by a pin 47, Fig. 2, which passes through a curved plate 48 bridging a slot 49 in the body and which 'enters the hub 46 of the nut 14. The length of the slot and the quantity of air passing it are controlled by wedge-shaped cavities 28 in a cylindrical sleeve which is divided longitudinally into two parts 20, 21 which are provided with a piston ring 27 and held in contact with the members 5, 12 by a spring 24. The cavities 28 merge into longitudinal ribs 29 which slide on rib's 30, 31 on the members 5, 12 when the sleeve is moved axially by a forked arm 39 operated by a lever 42. In the updraught carburetter shown in Fig. 5, the slot 16 is formed between the. inner edge of the groove 11 and a sleeve 51 which is screwed on to a rod 54 and prevented from rotating by a pin 62. The width of the slot is adjusted by rotating an arm, (not shown), attached to a ring 57 against which the lower end of the rod 54 is held by a spring 61. The air passage 82 past the slot is controlled by a conical member 68 which slides in a fixed c<y>uhdrtoal member 70 and which is provided with curved projections 83 that control the length of the slot 16. The member 68 is moved along the rod 54 by a lever 75 operated by an arm 78 which simultaneously, through a cam groove 79 and roller, turns an arm 64 connected to the rod 54 to adjust the width of the slot. To prevent complete closure of the slot and of the air channel, the arm 75 is provided with a projection 85 which abuts against an adjustable screw 86.
Patent GB-1212231-A (GB)
Title: A headlight beam-deflector device
IPC: F21V14/04
Filed: 1968-02-16
Abstract: 1,212,231. Vehicle headlamps. PROJECTEURS CIBIE. 16 Feb., 1968 [28 Feb., 1967; 3 Jan., 1968], No. 7648/68. Heading F4R. In a vehicle headlamp, a series of optical deflectors 1 are pivoted about vertical or near vertical axes 1a coupled by a linkage 2 to the steering system so that when the vehicle is taking a corner all the deflectors are pivoted so as to reflect part of the light towards the inside of the corner. The deflectors may be plane mirrors silvered on both sides or semi-transparent mirrors and may extend only over the lower half of the mouth of the reflector so that part of the beam is undeflected and where the lamp provides dipped and main beams, the dipped beam is also unaffected. The axes of the deflectors may be inclined at a small angle to the vertical so that the deflected beam is directed downwards as well as sideways.
Patent GB-453509-A (GB)
Title: Manufacture of fast brown leather dyestuffs
IPC: C09B51/00
Filed: 1935-03-12
Abstract: Leather dyestuffs are obtained by combining by oxidation or condensation two molecular proportions of a nitroaminodiphenyl amino di- or tri-sulphonic acid with one molecular proportion of a benzoquinone.  In examples: (1) the nitroaminodiphenylaminedisulphonic acid obtained by condensing 1 : 4-diaminobenzenesulphonic acid with 4-nitro-1-chlorbenzene-2-sulphonic acid is treated, in the presence of pyrolusite with toluquinone; (2) the dinitroaminodiphenylaminedisulphonic acids obtained from 1 : 4-diaminobenzenesulphonic acid and 1-chlor-2 : 6-(or 2 : 4-)dinitrobenzene-4 (or 6-)sulphonic acids are treated, in the presence of pyrolusite with toluquinone; (3) the condensation product from 1 : 4-diaminobenzene-2 : 6-disulphonic acid and 4-nitro-1-chlorbenzene-2-sulphonic acid is reacted with chloranil; (4) the condensation product from 1 : 3-diaminobenzene-4-sulphonic acid and 4-nitro-1-chlorbenzene-2-sulphonic acid is reacted with toluquinone in the presence of pyrolusite or chloranil.  The dyestuffs, which give brown shades, penetrate the leather. Specification 219,673, [Class 2 (iii)], is referred to.
Patent GB-1261076-A (GB)
Title: A cam brake mechanism
Inventor: DEIBEL WILLIAM THOMAS
IPC: F16D65/14
Filed: 1969-02-12
Abstract: 1,261,076. Internal shoe drum brakes. EATON CORP. 12 Feb., 1969 [8 March, 1968], No. 7712/69. Heading F2E. A rotary cam-actuated internal shoe drum brake mechanism comprises a cam 118 secured to a rotatable shaft 128, a first lever 126 secured to the shaft for rotative angular adjustment relative to the shaft, an operating device 122 connected to the first lever and a stop mechanism to limit cam movement to the maximum effective brake shoe displacement position of the cam comprising a second lever 130 fixed to the shaft and an abutment engageable by the second lever at the maximum displacement position of the cam when the operating device is fully actuated. The shaft 128 is mounted on a bearing 145 in a tube 140 attached to a backplate 104 and is rotated by a lever 126 driven by a fluid actuator 122. The lever 126 includes a rotatable worm 152 in engagement with a worm gear 150 on a splined end of the shaft to advance the shaft relative to the lever to compensate for brake wear. An angled arm 130 with teeth engaging the splines of the shaft reacts against a fixed member 120 to prevent excessive rotation of the shaft and cam. The position of the arm indicates the amount of brake wear. In another embodiment the arm abuts the actuator support 121. Specification 1,232,690 is referred to.
Patent GB-339570-A (GB)
Title: Improvements in the welding of metal pipes or tubes
IPC: B23K5/06
Filed: 1930-03-10
Abstract: 339,570. Mayweg, H. March 10, 1930. Welding.-A pipe a to be welded along longitudinal abutting edges is supported between, and fed forward by, rolls b of like polarity located behind a roller c forming the other electrode, a welding burner d being held approximately centrally of the rolls b. The pipe is raised to a temperature near to that of welding by the electrical means, the burner d completing the operation.
Patent GB-1095119-A (GB)
Title: Method of and apparatus for feeding folded signatures to thread book-stitching machines
Inventor: GERMER KURT
IPC: B65H7/02
Filed: 1965-02-23
Abstract: 1,095,119. Feeding sheets. LEIPZIGER BUCHBINDEREIMASCHINENWERKE VEB. Feb. 23, 1965, No. 7795/65. Heading B6B. Folded signatures to be stitched to form books are assembled in sets in a stock with the signatures in the right order, and are fed one by one to the conveyer saddle 5 of the stitching machine 7, and a device is provided which, if a first or last signature of a set is not fed at the requisite time in the cycle of operations of the machine (e.g. if one signature is missing from a set) causes the machine to be stopped. The first and last signatures each have an end paper attached which is utilized to operate the device. In one form, Fig. 1, three suction rollers 3 associated with guides 4 are provided. The first suction roller 3 only is operative at the time when a signature without an end sheet should be present, and opens the signature so that it passes over the guides 4 to the saddle. When a signature with an end sheet comprising a single leaf should be present, the first two suction rollers 3 are rendered operative. The first roller 3 then opens the end-sheet leaf and the second roller opens the signature proper which then passes over the guides 4 to the saddle. If, however, a signature with no end sheet is presented at this time, the second roller 3 pulls the whole signature to one side so that it drops out of the machine. If the end paper attached to the first and last signatures comprises two leaves, all three rollers are rendered operative, to open the two leaves and the signature proper, respectively. In this case, if a signature with no end sheet incorrectly arrives at the rollers 3, the signature is ejected as before. A timed switch 6 engages the saddle and if no signature is present, it closes a circuit to stop the machine. According to a second embodiment (Fig. 2) a suction device timed to be operative when a last signature 11 should be on the saddle 8, lifts the end paper so that the end paper passes through a thickness measuring device 10. If, however, the signature present is not the end signature, a part of the signature of much greater thickness than an end paper passes through the device 10 and causes the machine to be stopped. In a third form (Fig. 3) a photo-electric device detects whether printing is present on the exposed surface of the signature, and thus detects whether or not the signature has an end paper.
Patent GB-213593-A (GB)
Title: An improved process of dyeing acetyl-cellulose
IPC: D06P1/62
Filed: 1924-03-27
Abstract: In dyeing cellulose acetate, aromatic sulphonic or carboxylic acids or their salts are added to the dyebath, the dyeing being effected at not above 50 DEG  C., or the fibre is preliminarily treated with these acids or salts and then dyed at a temperature not exceeding 50 DEG  C.  Protective colloids may be added.  The sulphonic acids of benzene, naphthalene, or anthraquinone, or salicyclic acid, or oxy, alkyl, chlor, or nitro derivatives of these are suitable.  Examples are given of dye baths containing methylene green and sodium diphenylamine sulphonate or carbazole sulphonic acid, auramine O and sodium o-cresotinate, Fuchsine, naphthalene-b -sulphonic acid, and gelatine, Martius yellow, benzoic acid, and gelatine, Pyronine G and sodium anthraquinone-b -sulphonate; in another example, the fibre is preliminarily treated with 2-oxyisophthalic acid, and then dyed in a bath of Malachite green and gelatine.  Specification 179,384 is referred to.  The Specification as open to inspection under Sect. 91 (3) (a) describes also the printing of cellulose acetate with the aid of aromatic sulphonic or carboxylic acids or their salts, and in examples the material is printed with a paste containing Setoglaucine, 2-naphthol-7-sulphonic acid, acetic acid, and gum thickening, or is first padded with a solution of sodium 1-chlornaphthalene-4-sulphonate and then printed with a paste containing Malachite green, acetic acid, and green thickening. The use of glucose, glue and bast soap as protective colloids is also described.  This additional subject-matter does not appear in the Specification as accepted.
Patent GB-206443-A (GB)
Title: Improvements in and relating to methods of and apparatus for starting alternating current motors
IPC: H02P1/28
Filed: 1923-03-19
Abstract: 206,443. British Thomson-Houston Co., Ltd., (General Electric Co.). March 19, 1923. Regulating transformers.-In starting a threephase alternating current motor by means of a step-down auto-transformer, the flux in the transformer is reduced by shunting part of the windings by a variable resistance 17.
Patent GB-1015775-A (GB)
Title: Improvements in transfer mechanisms for heading and like metal working machines
IPC: B21K27/04
Filed: 1963-02-27
Abstract: 1,015,775. Forging. TEXTRON Inc. Feb. 27, 1963 [March 7, 1962], No. 7872/63. Heading B3H. A blank transfer mechanism for a header, nut former or like machine, comprises a transfer head 46 slidable on the machine frame 10, a plurality of lift plates 42 slidable on the transfer head and a pair of co-operating gripping fingers 18 pivotally mounted on each lift plate. A blank is severed from rod or wire stock by a knife 16, Fig. 2, which moves it to die A. Then the blank is transferred successively between dies A-C by the fingers 18. These fingers are carried on finger arms 24 pivoted at 32 to transfer plates 30 secured by screws 44 to the lift plates 42. Actuating links 26 for the fingers are pivoted at 34 to the finger arm and connected to a common pivot 36 on the transfer head 46. The lift plates 42 are each raised and lowered by individual linkage 80, 68, interconnected through spring- loaded lost-motion coupling 75 and actuated by a separate adjustable cam 58 on shaft 60. The transfer head 46 which slides along surfaces 126, 128, Fig. 3, is carried by arms 129 pivoted on axes 134, 136, and is actuated through adjustable link 102, Fig. 2, by a crank-shaft 100 driven through rack-and-pinion gearing 108, 110, and linkage 124, by a pair of cams 112, 114, Fig. 1 (not shown) on shaft 60. During the lifting movement of the lift plates 42, the fingers 18 are opened; during the lowering movement the fingers close on a blank and hold it against a centrepiece 28. The closed position of the fingers is adjustable by nuts 56. Various transfer motions can be given to the fingers, Fig. 4 (not shown), by the design and timing of the driving cams. In another embodiment, Figs. 5, 6 (not shown), the centrepiece 28 is omitted and the fingers are also adjustable laterally of the dies.
Patent GB-1436924-A (GB)
Title: Arc-welding apparatus
IPC: B23K9/067
Filed: 1974-02-21
Abstract: 1436924 Arc welding high frequency ignition systems SIEMENS AG 21 Feb 1974 [4 April 1973] 7876/74 Heading H2H Arc welding apparatus having a non-consumable electrode 13 and workpiece 14 fed from a D.C. source 15, 16 is provided with a high frequency ignition circuit comprising a capacitor 4 charged from an A.C. source by way of a rectifier 2, the capacitor being discharged, when ignition is required through the primary winding of a transformer 5 by the triggering of a thyristor 6 so as to produce an oscillatory voltage in the secondary winding which is used to start an arc between the electrode 13 and the workpiece 14, the apparatus being further provided with a diode 11 in parallel with the arc and poled so that the positive peaks of the oscillatory ignition voltage are bypassed from the arc. Conduction of the thyristor 6 is effected by a square wave generator 9 and a pulse shaper 8, and the diode 11 has a protective resistor 10 in series therewith. The D.C. source 15, 16 is isolated from the negative peaks of the ignition voltage by a diode 17 and the voltage from the D.C. source 15, 16 is isolated from the transformer 5 by a capacitor 12. The diode 11 may be replaced by a diode chain, each diode in which is shunted by a resistor.