baber/WOPTO huggingface dataset:
Patent GB-655776-A (GB)
Title: Improvements in or relating to friction drives
IPC: F16H15/20
Filed: 1948-08-06
Abstract: 655,776. Variable-speed gearing. GARRETT CORPORATION. Aug. 6, 1948, No. 20804. Convention date, Aug. 19, 1947. '[Class 80(ii)] A number of frusto-conical rollers 31 rotatably mounted in a fixed casing 13 and thrust into contact with a driven roller 58 by springs 44 acting through spherical seatings 41 have their individual contact pressures equalized during drive by the opposing axial thrust on each roller due to a helical gear connection 22, 36 between it and a driving shaft 21, each opposing thrust being proportional to the torque transmitted by the corresponding roller. The roller 58, which is slightly crowned, is connected to a driven shaft 51 by splines 61, 62 having sufficient play to allow the roller 58 to centralize itself between the rollers 31. A lever 67 acts through a thrust bearing 64 on the roller 58 to slide it axially for ratio changing. The springs 44 may be replaced by a single spring or by other resilient means, and the roller 58 may be replaced by a ring encircling the rollers 31. The shafts 21, 51 may be the driven and driving shafts respectively.
Patent GB-1216495-A (GB)
Title: Electrical impedance networks
Inventor: ANTONIOU ANDREAS
IPC: H03H11/44
Filed: 1967-05-04
Abstract: 1,216,495. Negative impedance converters; gyrators. POST OFFICE. 30 April, 1968 [4 May, 1967], No. 20882/67. Headings H3U and H3W. An electrical network is constituted by a bridge circuit having two opposite arms constituted by resistors R1, R2 and the other two opposite arms constituted by the input and output terminals of an amplifier DA. The input is applied across one pair of diagonals 1, 1<SP>1</SP> and the output is taken from the other pair 2, 2<SP>1</SP>. The arrangement shown constitutes a negative impedance converter. If one of the resistors is replaced by a negative resistance, the network constitutes a gyrator. The negative resistance may be produced by means of a negative impedance converter of known type, Figs. 4, 5 (not shown). In these two circuits stabilizing is provided by shunting the input and output by diodes, e.g. Zener diodes.
Patent GB-316427-A (GB)
Title: A coin-testing device for coin-freed vending machines
Filed: 1928-07-18
Abstract: 316,427. Garner, W. J. July 18, 1928. Testing coins.-Coins or discs j, Fig. 2, with a central hole become suspended on an upstanding pin f removably arranged inside a funnel e at the top of a shoot b leading to the releasing mechanism of a coin-freed machine. The coins drop from a shoot a and pass through a half-ring d which positions them above the pin f. The pin f has a handle h for use when it is to be removed, the handle being provided with three or more limbs which fit in slots in the edge of the funnel e. Coins without a hole are not caught by the pin f and pass down the shoot to release the machine.
Patent GB-1106809-A (GB)
Title: Preparation of polymethyladamantanes
IPC: C07C5/27
Filed: 1966-05-11
Abstract: Polymethyl adamantanes having a total of 12-14 carbon atoms, the methyl groups being located at bridgehead positions, are prepared by contacting any C12- 14 tricyclic perhydroaromatic hydrocarbon at 55-150 DEG  C., and in the presence of free HCl having a partial pressure of at least 0.1 p.s.i., with a pre-formed liquid catalyst complex obtained by reacting AlCl3, HCl and a paraffinic hydrocarbon having at least 7 carbon atoms.  The catalyst preferably also contains free AlCl3.  If the reaction product contains undesirable amounts of isomers having at least one non-bridgehead methyl group, a further isomerization step may be conducted at 0-50 DEG  C. but under otherwise similar conditions, whereby the non-bridgehead methyl groups isomerize to bridgehead positions.  Any C12, C13 or C14 tricyclic perhydroaromatic will yield di-tri- or tetra-methyl adamantane, respectively, particular conversions specified being perhydroacenaphthene or perhdroindacene to 1,3-dimethyl adamantane, and perhydrofluorene to 1,3,5-trimethyl adamantane.
Patent GB-460235-A (GB)
Title: Improvements in or relating to temperature indicators and to temperature operated electric switches
IPC: G01K11/06
Filed: 1935-07-24
Abstract: 460,235. Thermal switches. WORSDALL, H. July 24, 1935, No. 21061. [Class 38 (v)] When a fusible plug 5 melts with rise of temperature, mercury or like conducting liquid flows from a chamber 2 into a chamber 3 thereby closing and opening electric circuits. The invention is applicable to fire detectors, to water sprinklers and to control of electric geysers, immersion heaters and other electric apparatus, &c. In the form shown, a circuit between contacts 8<a>, 8b is broken and one between 9<a> and 9<b> closed. A metal pin 10 adapted to be plugged into the article to be protected from excess temperature, conducts heat to the plug 5. The whole device may be inserted in a holder, Fig. 4, having contacts 13<a>, 13b, 14<a>, 14b adapted to be engaged by the contacts 8<a>, 8<a>, 9<a>, 9<b> and to be connected to leads. The pin 10 passes through a hole 15. In a modification, Figs. 5 and 6 (not shown), there is an additional chamber below the chamber 3 into which the mercury falls at a later instant when a second fusible plug melts at a higher temperature. In another modification, Fig. 7 (not shown), a metal shroud surrounds the unit. This is suitable for operation by a rise in temperature of the surrounding atmosphere and for detecting fires. An indicator for the device may comprise a float on the mercury in the chamber 2 having an upwardly-projecting stem.
Patent GB-575290-A (GB)
Title: Improvements in or relating to devices for the collation of statistics
IPC: B42F17/30
Filed: 1943-12-16
Abstract: 575,290. Indicating variable information. BLACKHOUSE, H. T. Dec. 16, 1943, No. 21151. [Class 118 (i)] A device for collating statistics comprises a base-plate 1, a number of parallel slideways 5 each housing a manually-adjustable strip 6 terminating in an indicating tab 6a co-operating with a scale 8 marked on the base-plate, and holders 2 for a renewable paper sheet, card or the like 3 having a number of ruled divisions 4, each of which is aligned with one of the slideways 5. In a modified form, the slotted portion may be arranged in the centre of the baseplate and have a card or the like mounted on each side thereof, two indicators sliding in each slideway, one of which co-operates with the left-hand card and the other with the righthand card. In a further modification in which two indicators slide in the same groove, one indicator is slotted along its centre and the second slides beneath the first and is moved by a turned-up tab which projects through such slot. In each of these forms, the sliding strip or strips may have distinctive colouring and the background of each slot may be distinctively coloured so that the relative positions of the indicating strips may be seen at a glance.
Patent GB-1101809-A (GB)
Title: Improvements in or relating to quilting machines
IPC: D05B11/00
Filed: 1965-05-19
Abstract: 1,101,809. Laminates. K. SCHLEGEL. 19 May, 1965, No. 21173/65. Heading B5N. [Also in Division D1] Elastic fabric is made by stretching an elastic foundation sheet 18 laterally by means of divergent feeding chains having inwardlyoffset, sheet-engaging pins, Division D1, and sewing a cover sheet 107 thereto along spaced lines. On release of tension, the foundation sheet contracts and the cover sheet puckers between the lines of stitching. A filler layer 106 may be included between said sheets. The foundation sheet may be of the type known as " triest ". The filler layer may be a felted sheet, or it may be an unfelted layer of feathers, down, or other loosely assembled material. The cover sheet may be of woven fabric or of leather.
Patent GB-703452-A (GB)
Title: Improvements in or relating to single-colour or multi-colour printing machines
IPC: B41F31/30
Filed: 1951-09-07
Abstract: 703,452. Printing on curved surfaces ; inking- apparatus. MASCHINENFABRIK WINKLER, FALLERT & CO., AKT.-GES. Sept. 7, 1951 (Sept. 8, 1950], No. 21211/51. Class 100 (2) In a single- or multi-colour machine for printing on tubes or other cylindrical bodies an inking unit has side plates detachably secured to side supports on the printing machine about hinge members so that it may be swung out towards either side of the machine by releasing the securing means on one side or the other. As shown the printing machine side support 3 has apertured bearings 9, 9a between which lugs 11 on the inking mechanism side plate 7 are retained by threaded hinge bolts 12 removable by hand knobs 13, this arrangement being repeated on the other side of the machine. The offset cylinder 1 receives the image from the plate cylinders 2 and applies it to tubes &c. on mandrels on an intermittently rotated plate A.
Patent GB-479061-A (GB)
Title: Improvements in paper guide means for calculating and the like machines
IPC: G06C11/10
Filed: 1936-07-31
Abstract: 479,061. Typewriters &c. BURROUGHS ADDING MACHINE CO. July 31, 1936, No. 21228. Convention date, Aug. 1, 1935. [Class 100 (iv)] Sheet-guiding arrangements ; ink-ribbon mechanism.-A front-feed guide for tickets &c. consists of an open-end shoot mounted at one side of the printing position and arranged between the platen and a length of ink ribbon so that the ticket, after being placed in the shoot, can be moved laterally into printing position, wrinkling of the ticket or displacement of the ink ribbon being thereby avoided. The shoot 23 shown in the Figure is secured to the plate 10 that supports the platen 11 of a calculating-machine, and is arranged between two stretches of an ink ribbon 16 employed for typing on the ticket 28 and a record strip 12. The ink ribbon is wound on spools 17, 21. The shoot is arranged at one side of the printing position and is formed at the outer end and top with troughs 27, 26, the inner end being open and being formed with slots 30 for permitting close contact of the ink ribbon and the papers. The ticket is inserted through one of the troughs 26, 27 and is then moved laterally into printing position, a stop limiting the movement. A plate prevents the ticket from sagging. For holding very flexible tickets &c., the inner end of the shoot is slit to provide fingers for gripping the ticket. The shoot may also be provided with an extension consisting of a strip which extends to the end of the platen and is doubled to provide a narrow slit for gripping the ticket. The strip is formed at the inner end with a finger for directing the ticket into the slit. For use with long tickets &c., an additional shoot 40 is provided, and the ink ribbon is reverted by means of guides 44, 45, on the shoot, the arrangement preventing the loop of the ink ribbon from obstructing the ticket. Specification 431,354 is referred to.
Patent GB-218874-A (GB)
Title: Improvements in the manufacture of ply wood
IPC: B27D1/04
Filed: 1923-08-22
Abstract: 218,874. Armstrong Siddeley Motors, Ltd., and Siddeley, J. D. Aug. 22, 1923. Drawings to Specification. Laminated wood.-Ply wood is built up of wooden sheets interspersed with sheets of woven fabric, the grain of the wood and the strands of the fabric being arranged at a different angle in each layer, and the layers united by cold waterproof cement under pressure. The product is stated to be especially suitable for use in making the discs of an engine-testing fan or dynamometer.
Patent GB-1048856-A (GB)
Title: New colour compositions
IPC: C08K9/04
Filed: 1965-05-19
Abstract: Non - dusting, non - hygroscopic, non - toxic colouring compositions for pigmenting polymeric resins comprise a colour lake of an organic generally water-soluble, dyestuff and a lipophilic long-chain (preferably C12-C22) monocarboxylic fatty acid partial ester of a hexitol anhydride. The ester, constituting 0.02-2% by weight of the colour composition, is preferably liquid, e.g. sorbitan monolaurate, monooleate or trioleate, mannitan oleate, or mixed esters of sorbitan or mannitan with coconut oil fatty acid; alternatively, the solid esters sorbitan monopalmitate, monostearate or tristearate may be used.  Suitable colour lakes include aluminium, calcium, barium, strontium and iron lakes of organic dyes containing sulpho acid and/or carboxy groups; phosphotungstic, phosphomolybdic, phosphotungstomolybdic, silico-tungstic or silico-tungstomolybdic lakes of basic dyes such as (i) aminopolyarylmethane derivatives, e.g. methyl and crystal violets, (ii) thiazines, e.g. methylene blue, (iii) acridines, (iv) phosphines, (v) xanthenes, e.g. rhodamines, (vi) azodyes, e.g. cheysoidine, (vii) indamines, (viii) thiazoles, (ix) oxazines, aluminium lakes of water-soluble, edible, non-toxic colours containing 15-50% colour based on total weight of lake being preferred. The composition may also include 40-100% (by weight of the lipophilic ester) of an hydrophilic non-ionic surfactant such as polyoxyethylene sorbitan monolaurate.ALSO:Polyethylene is coloured with a composition comprising a colour lake of an organic dyestuff, a lipophilic long chain monocarboxylic fatty acid partial ester of a hexitol anhydride and optionally a hydrophilic non-ionic surfactant. In examples the colouring compositions contain sorbitan monolaurate (lipophilic) polyoxyethylene sorbitan monolaurate (hydrophilic) and differently-coloured aluminium lakes.
Patent GB-1063096-A (GB)
Title: Improvements in and relating to centrifugal pumps
IPC: F04D29/22
Filed: 1964-05-22
Abstract: 1,063,096. Centrifugal pumps. U. M. W. BARSKE and W. MURRAY. May 22, 1964, No.21293/64. Heading F1C. In a centrifugal pump having an impeller and at least one axial inlet (43), a bank of rotatable discs 40 defining annuli coaxial with the rotational axis, induce flow from the inlet to the impeller blades 32 whilst substantially eliminating cavitation in the inlet under conditions of low inlet head and high rotational speed, for example, about 1 p. s. i. above the vapour pressure and above 2000 r.p.m. respectively. The faces of the discs may be roughened to increase flow. The discs 40 may be spaced 0À050-0À125 inches apart. The discs may be spaced by a number of tongues (74), Fig. 6 (not shown), bent out of the plane of each disc (40) at the periphery thereof to form axially extending spacers, and the entry ends of the impeller blades (32) are located in the resulting slots (73), Fig. 7 (not shown). The end ring (58), after assembly, is angularly rotated a small amount in a slot (72), Fig. 3 (not shown) in each impeller blade (32) and secured in this position by pushing lips (75) against it. In alternative embodiments, Figs. 8 and 11 (not shown), the discs (40) are spaced by rectangular rings (77, 78) and I-shaped strips (79, 81) respectively, the ends (78) of the rings and those (81) of the strips being bent upwardly to engage the sides of the impeller blades (32). Moreover, the discs (40) are made oversize and are flattened at those positions on their peripheries to be received by the entry ends of the impeller blades (32). In another embodiment, Figs. 14 to 18 (not shown), having a fully shrouded impeller with discharge nozzles through its peripheral wall, each disc (40) is radially sprung into slots in the entry ends of the impeller blades, the impeller being radially split, to permit assembly of the discs (40), into a part comprising the back plate and peripheral wall and a part comprising the front plate and blades, the two parts subsequently being riveted or bolted together. Alternatively, the blades may be arranged on the back plate. Moreover, if the number of impeller blades is six or a greater even number then every second or third blade only need be provided with slots, the remainder being out of, or in loose contact with the discs (40).
Patent GB-992009-A (GB)
Title: Measurement and control of the depth of modulation of radio waves
Inventor: JAMES ROBERT JOHN
IPC: G01R29/06
Filed: 1961-06-13
Abstract: 992, 009. Automatic control systems. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. June 12, 1962 [June 13, 1961], No. 21295/61. Drawings to Specification. Heading G3R. [Also in Division H3] A rectangular waveguide feeds into a circular waveguide with axial ferrite modulator rod so that modulation applied to a coil surrounding the circular guide varies the plane of polarisation of the E-vector. A coaxial line probe extends into the guide at 45 degrees to the mean position of this vector and derives a D.C. output dependent on the mean modulation amplitude which controls the magnitude of the modulation signal so that the depth i.e. percentage of modulation is stabilized. The circular guide feeds into a rectangular guide with short side at right angles to that of the input rectangular guide, so that its output is a balanced amplitude modulated wave. Between the circular guide probe and rectangular output guide a matched load plate absorbs any energy with E-vector parallel to that of the input.
Patent GB-809239-A (GB)
Title: Manufacturing process for piperazine
IPC: C07D295/023
Filed: 1957-07-05
Abstract: Piperazine is manufactured in a continuous process from one or more of the homologous polyamines of ethylene having the formula H2N-(C2H4NH)x-H, in which x is an integer, by continuously passing a stream of the polyamine reactant material under a pressure between 300 lb./sq. inch and the liquefying pressure of the reaction mass at the temperature of the reaction over a fixed bed of a catalytic mass, supported on a non-acidic mass, of Raney nickel or Raney cobalt maintained at a temperature between 150 DEG  and 250 DEG  C. and continuously withdrawing a piperazine-containing stream from the catalyst bed.  The preferred starting material is diethylene triamine.  The preferred catalyst is Raney nickel supported on an inactivated nickel-aluminium alloy core.  Other supports such as charcoal or magnesium oxide may also be used.  The process is advantageously carried out in a vertical tower.  If desired unreacted portions of the polyamine reactant, including any that have been converted to higher polyethylene polyamines, may be recycled.  In an example diethylene triamine at a pressure of 500 lb./sq. inch and at 185 DEG  C. is passed through a catalyst consisting of an activated Raney nickel-aluminium catalyst to give piperazine.  U.S.A. Specification 2,267,686 is referred to.
Patent GB-665789-A (GB)
Title: Improved air supply grille and method of producing the same
IPC: F24F13/08
Filed: 1949-08-16
Abstract: 665,789. Ventilators. AKTIEBOLAGET SVENSKA FLAKTFABRIKEN. Aug. 16, 1949 [Aug. 25, 1948], No. 21344/49. Class 137 An air diffuser consists of a rectangular frame 5 across which channel section members 7 are secured so as to leave slots between them through which air can pass. Each member 7 is formed from a rectangular metal plate folded by a press tool into a channel having a semi-circular base 8 and straight limbs 9 and 10 diverging at a small angle. Some of the plates are bent to give limbs of equal length and some to give limbs of unequal length, the two kinds of plate being assembled in the frame 5 so that the rounded edges 8 and the ends of limbs 9 and 10 lie in common planes and so that air passing through the distributer is spread fanwise.
Patent GB-143449-A (GB)
Title: Improvements in fastening studs for exhaust valve casings in internal-combustion engines, or the like
IPC: F02F7/00
Filed: 1919-09-02
Abstract: 143,449. Blache, H. H. Sept. 2, 1919. Valve chests, mounting.-To obviate fracture of valve casing or securing bolts on heating, the bolts e securing exhaust-valve casing a, to the cylinder cover c, are made long and are turned down for the greater part of their length, so as to be capable of extension under stress. They are surrounded by tubes g of material such as cast-iron, turned down for the greater part of their length.
Patent GB-693178-A (GB)
Title: Improvement in catalyst carrier units
IPC: B01J37/02
Filed: 1950-09-01
Abstract: A catalyst carrier unit is formed by dispersing a finely divided active metal oxide in a salt solution or an acid, applying the mixture to a catalytically inert support, and then drying and heating to leave a film of the metal oxide on the support. Porcelain of low porosity may constitute the support, and preferred oxides are alumina, beryllia, magnesia, and thoria. Solutions of aluminium nitrate or sulphate, or the chlorides or sulphates of beryllium, magnesium, or thorum, may be used as the salt solutions; a suitable acid is sulphuric acid.  The weight ratio of metal oxide to salt solution may be between 1:2.5 and 1:12.  Dispersion may be effected by grinding in a pebble or ball mill.  The film may be applied by immersion or spraying and may be hardened by treatment with a salt solution not containing metal oxide, followed by drying and heating; the film-forming and hardening steps may be repeated.  Catalytic metals or oxides may be combined with the base film as described in Specification 690,825 to form catalytic units for use in oxidation reactions, for example those described in Specifications 690,804 and 690,805, [both in Group XII], catalysts suitable for hydrocarbon conversion and hydrogenation may also be prepared.
Patent GB-1452590-A (GB)
Title: Centrifugal timing devices for ignition distributors
IPC: F02P5/06
Filed: 1975-05-21
Abstract: 1452590 Centrifugal shaft coupling ROBERT ROSCH GmbH 21 May 1975 [23 Nov 1974] 21692/75 Heading F2U A centrifugal timing device for an ignition distributor of an I.C. engine comprises a base plate 1 attachable to the distributor shaft and a pair of centrifugal weights 2, 3 pivotally-mounted on the base plate at 4 and 5 for shifting round the contact breaker cams 17 through arms 16, each weight operating against the action of a spring 18 (19) so that in the maximum outward position a plastics cap 6 (7) on the end of one arm 2a (3a) contacts a limiting stop 20 (21) and in the zero position the cap contacts the end of the other arm 3b (2b). The caps 6 and 7 may be made of a polyamide or polyurethane and provided with a sliding shoe 12 (13) and a spigot 10 (11) for fixing it to the weight.
Patent GB-440019-A (GB)
Title: Metallic cartridge cases for fire arms
IPC: F42B5/28
Filed: 1935-07-31
Abstract: 440,019. Cartridge cases. ALUMINIUM FRANCAIS, 23, Rue de Balzac, Paris. July 31, 1935, No. 21722. Convention date, Aug. 3, 1934. [Class 9 (i)] [See also Group XXII] A metallic cartridge case for use in sporting guns and comprising a front portion of smaller diameter than the base portion is characterized by the fact that the powder wad is placed in the front portion and that this portion has an interior diameter equal to the nominal bore of the gun. In the manufacture of the case, starting from a thimble A, Fig. 2, of, say, aluminium or an aluminium alloy, a contraction B, Fig. 4, is first formed at the base end ; a central hole is made for the primer G ; " cartons " C, D, E are inserted between the tubular part A and the base 3 and inside the same, and the whole compressed by a punch H in a steel die F having a slightly conical part Z ; and the front end is contracted by means of another steel die to the final shape shown in Fig. 6.