baber/WOPTO huggingface dataset:
Patent GB-231712-A (GB)
Title: Improvements relating to electrical measuring or indicating instruments
IPC: G01R11/12
Filed: 1924-06-25
Abstract: 231,712. Wall, G., and Metropolitan- Vickers Electrical Co., Ltd. June 25, 1924. T h r u s t bearings; spring supports.- To prevent vibrations being transmitted to the fixed parts of structures such as elecelectrical measuring or indicating instruments, a vertical shaft 2 has a loosely connected pivotal member 7 supported in a bearing 8. The space between the member 7 and the shaft is filled with a viscous fluid, such as, oil or petroleum jelly so that the member 7 rotates with the shaft. As shown for a lower shaft support in Fig. 3 the pivot 7 is a pin engaging a hole 6 in the shaft 2 the space between the sides of the hole 6 and the pin being filled with a viscous fluid. The pin 7 rotates on a spring supported jewel bearing 8. For the upper shaft support the engagement of the member 7 and the shaft may be as shown in Fig. 3, the upper part of the member 7 being guided in a fixed part of the instrument. As shown in Fig. 4 the member 7 is a cup 9 carrying a jewel 8 which rotates on a spring supported pin 12 the space between the sides of the hole 10 in the cup 9 and the shaft 2 being lifted with the viscous fluid. Instead of the cup 9 engaging the shaft as shown in Fig. 4 it may enter an axial hole in the shaft.
Patent GB-616308-A (GB)
Title: Improvements in or relating to yarn winding machines
IPC: B65H67/08
Filed: 1946-05-22
Abstract: 616,308. Winding yarn. FOSTER MACHINE CO. May 22, 1946, No. 15518. Convention date, July 12, 1945 [Class 120(ii)] A yarn winding machine, particularly that set forth in Specification 598,596, is provided with an aspirator 252 for withdrawing, by suction, a length of yarn from a package 45 being wound when a free end exists thereon, either by breakage or failure of supply, to enable the end to be knotted to a supply yarn, the aspirator comprising a duct 264 having a suction nozzle 253 at one end in proximity to the surface of the yarn package, a source of suction 256 at the other end and means temporarily opening a normally closed aperture, e.g. a slit 260, in said duct to permit removal of the length of thread 259 sucked into the duct through the nozzle. The slit 260 is covered normally by a hinged flap 262 pivoted aside by contact therewith of the stationary pins 257, when the aspirator is moved transversely with the tender as described in the prior Specification, the pins 257 passing through slots 258 in the bottom and sides of the aspirator. To close the bottom slots 258, spring-pressed plates 277, bevelled at 283 and guided by screw and slot connections 279, 278 are provided, these plates being pressed aside by the pins 257 during their passage through the aspirator. Alternatively, in a one-pin thread removal means, a slotted plate, pivotally attached to the bottom of the aspirator and rotated by the engagement in one of its slots of a pin 257, may be fitted. The flap 262 may be held temporarily in the open position by a hocked detent 271. 273 operated by a stationary cam member 272 as the aspirator is moved bodily away from the package 45.
Patent GB-683319-A (GB)
Title: Improvements in or relating to thermionic valve amplifiers
Inventor: COOPER VICTOR JAMES
IPC: H03F3/52
Filed: 1950-06-21
Abstract: 683,319. Valve amplifying circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd. Feb. 28, 1951 [June 21, 1960], No. 15530/50. Class 40 (vi). In an amplifier in which the input is applied to the cathode of a first valve and the output is derived from the anode a second valve is connected having its input in parallel with the first valve and its output feeding the grid of the first valve so that the amplifier may exhibit an infinite positive or negative input impedance and a zero, positive, or negative output impedance. The Figure shows an amplifier in which the input is applied across the cathode impedance Zc in parallel to the valves 1, 11, the voltage produced across the anode load R of valve 11 being applied directly to the control grid of valve 1 from whose anode circuit the output voltage is derived. It is shown that by adjusting the values of the circuit constants the input impedance may be made infinite in either a positive or negative sense and the output impedance either zero, positive or negative.
Patent GB-1220219-A (GB)
Title: File-like abraiding tool
Inventor: DAVIES GEORGE
IPC: B23D71/00
Filed: 1967-04-05
Abstract: 1,220,219. Files. JAMES NEILL HOLDINGS Ltd. 3 April, 1968 [5 April, 1967], No. 15659/67. Heading B3L. A file-like abrading tool comprises a blank 1, a handle 3 and a removable flexible sleeve 2 on which the abrading surfaces are formed. The sleeve, which may be of a fabric material, has the abrading surface formed thereon by adhering thereto hard metal wires 8 which have teeth 9 cut therein. The sleeve 2 is retained on the blank 1 by friction between the fabric of the sleeve and a leather cover on the blank, and by reason of its close fit on the blank.
Patent GB-958778-A (GB)
Title: Improvements in and relating to the production of hydrazine
Inventor: JACKSON KENNETH
IPC: C01B21/16
Filed: 1960-05-03
Abstract: N2H4 is produced in a system containing a gas and liquid by subjecting an ammoniacontaining gas to an intermittent, i.e. in pulses, electric discharge in the presence of anhydrous liquid NH3, H2O or aq. NH3.  The liquid may be injected into the discharge as a pool, mist, falling film, jets or droplets large enough to fall under gravity, e.g. 0.2-2 mm. diameter.  The gas may be NH3, N2 or another inert gas at a pressure up to 0.5 atm. and preferably below 1000 DEG C., e.g. by cooling surfaces in the discharge chamber.  The discharge may be a spark, arc, glow or corona with A.C., R.F., or D.C. which may be combined with a superimposed field and may be electrodeless, e.g. separated by a dielectric, e.g. glass or quartz, or using corrosion-free electrodes of or plated with a metal or alloy, e.g. Pt, W, Ni, stainless steel, Ni- or Cr-Cu alloys.  The liquid may contact the reactant present either in the positive column or cathode fall region of the discharge and may cover at least the cathode.  The pulse length may be up to 10-2 sec., the current density at least 10-3 amp./cm.2 and the product of these two may be from 10-4 to 10-7. The field strength/unit pressure may be up to 100v./cm./mm. Hg.  A catalyst, e.g. for recombination of H atoms may be present. In an example, a heat resistant glass cylinder surrounded by a cooling jacket and fitted with a hollow Ni cylinder as cathode and Pt wire as anode was fed with 35% aq. NH3. The cylinder was cooled to - 78 DEG C. by methanol/CO2 and evacuated to 2.5-3.0 mm. Hg.  A D.C. glow discharge was struck and then pulsated, and N2H4 was produced. Specifications 735,655, 948,772, 958,776 and 958,777 are referred to.
Patent GB-543040-A (GB)
Title: Improvements in or relating to the forming by stretching of sheet metal particularly aluminium and aluminium alloy sheet
IPC: B21D25/02
Filed: 1940-10-25
Abstract: 543,040. Making aircraft. PRESSED STEEL CO., Ltd., and PETHER, A. H. Oct. 25, 1940, No. 15678. [Classes 83 (ii) and 83 (iv)] Angular bending; stretching.-Sheet metal parts, for example the cowlings, fairings and other skin panels for aircraft, of aluminium and its alloys, are produced in a standard power press with a preliminary step of freely bending over a die and then finally stretching the blank to the desired shape over the die, The tapering section 11, Fig. 1, is produced from a sheet 41, Fig. 2, by locating the sheet by holes, situated outside the trim-lines 51, engaging pins 44 in the wooden die 21 secured to a plate 22 supported on the holder 23 on the press bed 24. As the head 27 descends wooden blank holders 25, faced with metal 31 grooved at 49 to prevent slip, bend the sheet round the die till the edges are clamped against wooden spars 45. Air is now admitted beneath the cushion 36 and pins 35 raise the die 21 an amount determined by the setting of screwed collars 54 on side rods to stretch the metal over the die ; the amount of stretch being from 3 per cent. to 6 per cent. In a modification, pressure on the cushion is continuous and the spars 45 are replaced by blank holders supported in a raised position by the cushion during the " bending " part of the stroke after which the cushion yields to effect the stretching.
Patent GB-738385-A (GB)
Title: Derailleur type chain gear for cycles
IPC: B62M9/127
Filed: 1952-06-21
Abstract: 738,385. Change-speed gearing. CAMILLIS, L. Aug. 12, 1953 [June 21, 1952], No. 15693/52. Class 80 (2). In chain-shifting mechanism for a cycle change-speed gear comprising jockey and tensioning wheels 6, 7, mounted on a plate 5 carried by a spindle 1a secured in a fixed bracket 2 by a cap nut 20, with a helical spring 8 surrounding the composite spindle 1a, 1b and acting on the plate 5 both in compression and in torsion and the spindle la being movable by a flexible chain 9 extending through the spindle 1b and emerging from the nut 20 approximately at right-angles, the nut 20, or a ferrule 30 secured therein, has a slot 21 through which the chain 9 emerges so as to prevent damage to the chain in the event of a side blow. Specification 661,138 is referred to in the Provisional Specification.
Patent GB-1065833-A (GB)
Title: Improvements in or relating to multilayer circuitry with placed bushings
IPC: H01R24/58
Filed: 1964-04-15
Abstract: 1,065,833. Printed circuits. INDUSTRIAL ELECTRONICHARDWARE CORPORATION. April 15, 1964 [April 22, 1963], No. 15699/64. Heading H1R. [Also in Division H2] In the arrangement described in Specification 987,296, in which superposed matrix boards 41 to 46 having rows of socket contacts 26 interconnected by printed circuitry in regular patterns through which connecting pins 30 may pass into terminals 24 of edge connectors 16 for mother printed circuit boards 14 to be electrically interconnected, the socket contacts are sufficiently short to fit within the thickness of the boards. The pins 30, instead of having bands of insulation on them, are of conducting material only and where a connection to a matrix board is not required, the perforation in the board is not provided with a socket contact. Some pins 30 may be shorter so as not to engage with terminals 24. The latter and the socket contacts, Fig. 10 (not shown), are as described in the prior Specification except that the socket contacts are shorter. Other socket contacts described are split, Figs. 8 and 9 (not shown), and each formed with a ridge (204) at one end, or a ridge (220) at each end, so as to be a snap fit in a circuit board. Contact between the flange (208) or ridge (220) at one end and the printed line 214 may be improved by soldering. If screening is necessary on the opposite side of each board, the board may be laminated as described in the prior Specification but otherwise, simple boards 212 may be used, and in this case, they may be stacked without spacers between them.
Patent GB-526299-A (GB)
Title: Improvements in or relating to photographic cameras employing perforated film
IPC: G03B19/04
Filed: 1939-05-26
Abstract: 526,299. Cameras using perforated film. KODAK, Ltd. May 26. 1939, No. 15712. Convention date, May 28, 1938. [Classes 97 (i) and 98 (i)] A kinematographic or other camera using perforated film is provided with a feeler accessible from outside the camera and adapted to engage the perforated part of the film so as to be vibrated when the film is moving, thus serving to indicate stoppage of the film due to tearing at the perforations and also, in the case of failure of the counting mechanism or latching device in roll-film cameras, to enable the film to be advanced the correct distance by counting the vibrations produced by the perforations. In the form shown, a spring 15 secured to the rear wall of the camera carries a feeler knob 20 which projects through an opening in the wall, and also a projection 17 which passes through an aperture 19 in a pressure plate and engages the perforated margin of the film when the knob 20 is depressed.
Patent GB-1164596-A (GB)
Title: Oxime Derivatives
IPC: C07D311/88
Filed: 1968-04-02
Abstract: 1,164,596. Pharmaceutical compositions comprising oxime ethers. PHILIPS GLOEILAMPENFABRIEKEN N.V. 2 April, 1968 [5 April, 1967; 6 Feb., 1968], No. 15734/68. Heading A5B. [Also in Division C2]  Pharmaceutical preparations being active on the. central nervous system contain as active ingredient compounds of the general formula (includes salts thereof)  wherein R 1  and R 2  signify H or Me, R 4  is halogen, C 1-4  alkyl, C 1-4  alkoxy, -NO 2 , -CF 3 , -NMe 2  or -NEt 2 , R 5  is the same as R 4  or is -CN, -NH 2 , -NHMe or -NHEt, m is 0 or 1 and A is a valency bond, -O-, -S- or -CH 2 -, and R'3 and R"3 together signify a benzo group in which case n is 0 or simultaneously both represent H atoms or simultaneously each represents H and a phenyl group or H and a C 1-5  alkyl group in which case n is 0 or 1 and in which case A may represent in addition CH.Alkyl (C 1-5 ). Administration may be orally, rectally or by injection, e.g., in the form of. liquids, pills, tablets, coated tablets, capsules and powders.
Patent GB-711364-A (GB)
Title: Improvements in or relating to fuel oils
IPC: C10L1/198
Filed: 1951-07-03
Abstract: An anti-corrosive fuel composition comprises a marine Diesel petroleum hydrocarbon fuel falling within the boiling range of approximately 350-750 DEG F. and a relatively small amount, preferably 0.005-0.5 per cent. by weight based on the hydrocarbon fuel, of a polyethylene ether, or epoxy, derivative of a carboxylic acid ester of a polyhydric alcohol.  The epoxy-type additives are carboxylic acid esters of partially dehydrated, and preferably aliphatic, polyhydric alcohols such as the hexitols. The carboxylic acids may be fatty acids, naphthenic acids or resin acids or mixtures thereof, and suitable acids are specified.  The preferred polyethylene ether type of additives have the formula <FORM:0711364/III/1> in which x and y are integers, preferably from 1 to 10 and from 1 to 5 respectively, X is a residue of a polyhydric alcohol X(OH)y + 1, and R is a hydrocarbon group containing from 11 to 21 carbon atoms.  Polyethylene ether derivatives of sorbitan mono-oleate are mentioned.  In the examples, petroleum Diesel fuels containing sorbitan mono-oleate are described.  The fuel compositions of Specification 701,459 are disclaimed.
Patent GB-457488-A (GB)
Title: Improved method of and apparatus for tempering glass
IPC: C03B27/052
Filed: 1935-05-30
Abstract: 457,488. Tempering glass. CLEMO, F. A., 9, Kingsway, London.-(American Securit Co. ; 927, Market Street, Wilmington, Delaware, U.S.A.) May 30, 1935, No. 15784. [Class 56] Relates to apparatus for tempering glass plates in which a plate remains stationary during the process of heating and cooling. According to the invention, means are provided for withdrawing the blowing-frames from their operative position, and for moving the furnace between the two blowing frames into position to enclose the glass plate. The glass plate is supported in a frame 1 which rests on girders 30 above the main frame 3. Rotatable blowers 5, of known type, are supported by base plates 11 which slide on the main frame 3 in a direction at right angles to the plane of the glass plate and are moved to and from the glass by means of a motor 18. When the blowers are withdrawn to the position shown in dotted lines, a furnace 20 can be lowered to enclose the glass plate. The furnace is heated by electric heating-elements 22 in the usual way. The main frame 3 is mounted to run on rails 29 so that it can be moved in a direction parallel to the plate of glass. Thus a single blowing-apparatus can be used to cool one plate while another is being heated. The glass plate may also be suspended, the furnace being movable downwards or laterally.
Patent GB-1096268-A (GB)
Title: Improvements in or relating to photographic or cinematographic cameras
IPC: G03B19/12
Filed: 1965-04-13
Abstract: 1,096,268. Photographic and cinematographic cameras. ERNST LEITZ G.m.b. H. April 13, 1965 April 15, 1964], No. 15856/65. Heading G2A. A photographic or cinematographic camera has a photo-electric exposure meter the photo-electric transducer of which is arranged in the ray path in front of the film, means being provided for correcting for different illuminations of the transducer arising when objectives of different focal lengths are employed. The correcting means may be a lens 10, Fig. 3 which deflect rays 4 and 5 to converge strongly to intersect at a point 3' on the photo-resistor 2. In another embodiment, two rings 15, 16 Fig. 4 of thin material act as stops for rays 7, such that the photo-resistor 2 receives the same amount of light for both long and short focal length lenses. In another embodiment, the rings may be spirally wound. Alternatively, the correcting means may be a variable resistor in the exposure meter circuit adjustable in accordance with the focal length of the objective either manually or automatically upon introduction of an objective. Alternatively, the meter may be rotatably adjustable manually or automatically upon introduction of the objective to compensate for different focal length lenses.
Patent GB-997297-A (GB)
Title: Improvements in and relating to electrophotographic copying methods
Inventor: GILBERT JOSEPH
IPC: G03G15/04
Filed: 1962-04-26
Abstract: 997,297. Electrophotographic processes. OZALID CO. Ltd. May 28,1963 [April 26,1962], No. 15916/62. Drawings to Specification. Heading G2H. [Also in Divisions H1 and H2] An electrophotographic process includes exposing a photoconductive coating to light from an electronic flash tube having an envelope which, at least at the source of flash, is made of quartz.
Patent GB-561474-A (GB)
Title: Improvements in and relating to lawnmowers and the like
IPC: A01D34/62
Filed: 1942-11-11
Abstract: 561,474. Lawn mowers. BOOTON, C. F. Nov. 11, 1942, No. 15918. [Class 6 (ii)] The ledger blade 11 of a lawn mower is adjustable bodily towards and away from the rotary cutter 10 and also pivotally adjustable, to bring it parallel with the cutter; about,an axis which is intermediate its ends and which is normal to the axis of the cutter or tangential to a circle concentric therewith. The blade 11 shown is, connected to a member 112 which is pivoted by a pin 27 centrally of its length to a member 212. Clamping nuts 26, one on either side of the pin 27, hold the Made in the adjusted position, the nuts being screwed to studs projecting from member 112 through clearance holes in member 212. The latter has end lugs 13 each mounted on an eccentric 17 which is secured to a sleeve 18 surrounding a bar 19 of the frame. The lugs are each formed with a fork 14 engaging the flattened sides of a bush 1'5 rotatably mounted on a further frame bar 16. By adjusting, the eccentrics the entire blade assembly rocks about bar 16, and when the blade is correctly positioned locking is effected by clamping nuts 22 on studs 21 extending from the eccentrics through slots 23 in the lugs 13. The frame 20 has side wheels 29 having internal teeth geared to the rotary cutter, and is supported in front by a roller 31 carried by adjustable pivoted side plates 33. In a modification, the cam adjusting device is dispensed with and the lugs 13 are formed with arcuate slots through which extend studs projecting from the frame 20. Screw and nut adjusting mechanism is provided for rotating the blade assembly about the bar 16 and locking is effected by nuts mounted on the studs.
Patent GB-272942-A (GB)
Title: Improvements in coke ovens
IPC: C10B5/02
Filed: 1927-06-16
Abstract: 272,942. Naamlooze Vennootschap Silica en Ovenbouw Mij, (Assignees of Otto & Co., Ges., C.). June 16, 1926, [Convention date]. Coke ovens. - In a vertically - fired coke oven having " twin " flues a, a' connected at their lower ends by ports e<2>, so that a portion of the waste gases from a downflow flue may be passed to the upflow combustion flue for recirculation, a damper block f is provided for each port e<2>. As shown the blocks f rest on the floors of the flues and are adjusted through the top inspection openings g'. In a modification the blocks are of cylindrical or prismatic form, and are vertically adjustable, either by hand from the service galleries beneath the ovens, or by a, cam shaft.
Patent GB-1514127-A (GB)
Title: Membranes based on polyvinyl alcohol
IPC: B01D69/02
Filed: 1976-04-21
Abstract: 1514127 PVA membranes KURARAY CO LTD 21 April 1976 [22 April 1975 9 April 1976] 16136/76 Heading B5B A PVA membrane in the form of a flat film or hollow fibre contains a multiplicity of micropores having an average diameter of 0À02-2 microns as defined by interpore partition walls having a thickness of 50-5000 Angstrom units and disturbed with substantial uniformity across the cross-section of the membrane. The micropores may be arranged uniformly over the whole cross section or may vary continuously or in a stepwise manner from one side to the other of the membrane. The membrane may also have on one side at least a superficial skin of non-porous polymer the thickness of which is 1-50 times the average thickness of the interpore partition walls. The membranes are formed by extruding a PVA polymer composition containing a polyalkylene glycol having an average molecular weight of 400-4000 and a C to O atomic ratio of not more than 3 in a proportion of 2-200 weight parts per 100 weight parts PVA into a coagulating bath and forming the membrane. The membrane may be wet or dry heated, or stretched to modify the selectivity of separation or may be modified after coagulation, e.g. subjected to acetalization, esterification or etherification. The membrane may also be subjected to a swelling treatment with water at 30-120 C. Hollow fibres have outer diameters of 50-3000 Á and thicknesses of 10-500 Á. Flat membranes have thicknesses of 5-2000 Á.
Patent GB-241840-A (GB)
Title: Improvements in railway rail joints
IPC: E01B11/54
Filed: 1925-06-23
Abstract: 241,840. Gaunt, J. June 23, 1925, Rail joints.-A solid resilient wedge is driven between the rail ends, without disturbing the fish-plates, to fill the gap at the joint. The wedges are made of pressed paper pulp, wood, metal, &c., and may have holes A for the penetration of oil, &c. for lubrication or waterproofing, or preventing rust at the rail ends. The wedges may be plain, corrugated, serrated, or perforated. The wedges may project beyond the rail base, and be bent or fastened or holed, as at C, to receive a split pin or piece of wire to secure them in place. The wedges may be prepared so as to assist the braking or pulling of wheels on steep gradients.