baber/WOPTO huggingface dataset:
Patent GB-153581-A (GB)
Title: Improvements relating to toothed gear wheels
IPC: F16H55/08
Filed: 1920-11-08
Abstract: 153,581. Metropolitan-Vickers Electrical Co., (Assignees of Labberton, J. M.). Nov. 6, 1919, [Convention date]. Void [Published under Sect. 91 of the Act]. Toothed wheels.-In determining the dimensions of involute spur, bevel, or helical teeth having given the usual particulars-the distance between gear centres, the gear ratio, and the diametrical pitch-an assumption of the desired amount of rolling-action between the gear teeth is made and is used as a basis in solving a series of equations based on a mathematical consideration of the action and construction of the gearing. A diagram, Fig. 1, is drawn embodying the pitch circles contacting at the point o, the base circles x<1>, y<1>, the line of pressure x, y, and tooth curves S, T contacting at the point o. Points s<1>, t<1> on the curves S, T, respectively, are chosen to represent the points at which the first and last contacts with the tooth points t<2>, s<2> are made. Tangents to the base circles are drawn from the points s<1>, t<2>, t<1>, angles subtended at the gear centres z<1>, z<2> being designated as shown. Calculations are then made equating the angle c<1> with quantities involving the ratio of the curve s<1>, o to the curve t<2>, o, the gear ratio, and the angle b. The angle c<2> is similarly equated. An assumption of the required value of the ratio s<1> o : t<2> o, which represents the proportion of rolling taking place between the teeth and which should be rather less than unity, is then made, so that the angles c<1>, c<2> in terms of b, or in terms of a, the pressure angle, as b = tan a, can be calculated. Further assumptions are then made that the length of contact surface t<1> t<2> and the total length of each tooth are each equal to half the circumferential pitch. Based upon the first of these assumptions, such calculations are then made as to produce an equation in which by substituting the values of c', c<2> previously obtained, the value of a, the pressure angle of the gears, is determined. The addendum of each wheel is then determined by subtracting the pitch radii r<2>, r<1> from the lengths of the lines t<2> z<2> and s<2> z<1> (not shown), which lengths are obtained in terms of the angles shown and of the radii of the base circlse. Fig. 2 shows a curve stated to be obtained by calculation and designed to give equal strengths of teeth in the two wheels, the abscissµ denoting the gear ratio R and the ordinates the relative thicknesses of the teeth on the pitch line.
Patent GB-1011264-A (GB)
Title: Waste products treatment apparatus
IPC: C12J1/00
Filed: 1962-08-17
Abstract: A process of treating sewage for safe discharge allows the relatively lightweight particles of untreated sewage to be returned to the digestion basin.  <PICT:1011264/C1/1> <PICT:1011264/C1/2> A sewage tank 10 is divided by baffles 54 and 68 into a digestion tank 64, settling basin 74 and clarified liquid basin 76. Aeration is by aerator 96 and 26 and 28 are inlet for sewage and outlet for liquid respectively.  Baffles 40 and 42 and vanes 106, 108, 118 and 120 give a circulatory movement to the sewage and cause a region of reduced pressure which attracts a flow of liquid and buoyant particles through the troughs 100 and 116.  The flow through opening 114 into channel 116 can be controlled.
Patent GB-218926-A (GB)
Title: Autographic sales check printing machine
IPC: B41L5/14
Filed: 1923-12-19
Abstract: 218,926. Gill, H. A., (American Sales Book Co., Ltd.). Dec. 19, 1923. Rotary machines; number-printing apparatus. -A rotary machine for printing webs to form sales checks of the kind in which each check is numbered successively, the webs being unwound from spools and used in connection with similar webs with an interposed ink-ribbon for taking copies of each check issued is constructed to print each web A with fixed matter on each side by means of printing cylinders 2, 5, 7, and with a series of successive numbers by numbering devices 19 on a roller 16 coacting with an impression roller 9. The numbering devices are mounted in a pivoted frame 10, and after the required series of numbers is printed the frame 10 is tripped to bring a printing roller 13 into operation which prints a certain number of the checks with the word " void," or other mark to indicate, that these cheeks are not for ordinary use, but are merely to enable the strip to be wound. round the winding rollers of the recording machine in which the webs are used. The numbering-apparatus is tripped until a number of checks have been so printed, e.g. eight, sufficient to allow four " void " checks to be arranged in front of and behind those which are numbered to form a series. The web is then passed to transverse preforating apparatus 71, 72 and to an apparatus 80, 81 which severs the web in the middle of the series of checks printed with the word " void. " Tripping-arrangements. - The frame 10 is normally held in the position shown with the numbering-apparatus in operation by a spring- controlled pivoted dog 25, but this is released by a lug 32 on a rod 30 when the series of numbers is printed. The rod 30 is actuated by a tumbler lever 34 when rollers 38 on this and similar levers enter recesses on discs as 43 operated bv pawl. and-ratchet mechanism from a crank on the impression roller 6. The recesses are in alignment when the required numbers are printed and remain so until the required number of checks have been printed by the roller 13. A cam 67 restores the number-printing roller 16 to printing- operation, and the gearing for changing the numbers, which is thrown out when the roller 16 is tripped, is automatically restored.
Patent GB-277840-A (GB)
Title: Improvements in or relating to belt conveyers
IPC: B65G13/00
Filed: 1926-12-16
Abstract: 277,840. Hatton, R, W. Dec. 16, 1926. Discharging and feeding devices for endless belt conveyers ; roller-way conveyers.-A curved conveyer, or a curved corner section of a conveyer which may form the connection between the end of one conveyer belt a and another belt b arranged at an angle thereto, comprises groups of discs c<1> - - c<5> arranged on spindles d radiating from a common centre and having the combined profile of the discs in each group conforming to a curve similar to that of a tapered crown pulley or equivalent crowned profile. Grooved pulleys e on the outer ends of the spindles d are driven by an endless belt f which is carried down and around guide pulleys g, Fig. 5, arranged between every other pair of pulleys. The belt is carried round to the inside of the section by guide pulleys h and is passed round a tensioning jockey pulley i, Fig. 2, the bearing j of which slides in vertical guides k and carries a weight l. The driving pulley m of the belt f is driven by a shaft t through chain-and-sprocket gearing. The shaft t is connected to the chain wheels n, w of the conveyers a, b by the gearing shown. In a modification a full tapered .pulley of crowned profile is employed, the pulley being in some cases provided with circumferential grooves and ridges.
Patent GB-257148-A (GB)
Title: Improvements in the manufacture and production of colour lakes containing molybdenum
IPC: C09B69/06
Filed: 1925-12-17
Abstract: 257,148. Johnson, J. Y., (I. G. Farben- Industrie Akt.-Ges.). Dec. 17, 1925. Lakes.-Colour lakes fast to light containing molybdenum are made by treating basic dyestuffs, which may or may not contain acid groups, with components capable of yielding complex molvbdenum compounds. The components may be added simultaenously or successively to a solution of the dyestuff containing a substratum, or the dyestuff may be partially precipitated by a complex acid, e.g. phosphotungstic acid or antimony tungstic acid, and the precipitation completed by adding components capable of forming complex molybdenum compounds. In examples (1) a substratum of heavy spar, alumina, and precipitated barium sulphate is mixed with a solution of methyl violet B extra and the lake is precipitated by adding ammonium molybdate and disodium phosphate solutions and acidifying with hydrochloric acid, and (2) a methyl violet lake containing phosphoric acid and turkey red oil, made by mixing aluminium sulphate and methvl violet B extra with a suspension of heavy spar in disodium phosphate solution and precipitating with barium chloride in the presence of turkey red oil, is treated with ammonium molybdate. Other molybdates, such as sodium molybdate, may be used.
Patent GB-730491-A (GB)
Title: Desolventizer and toaster
Inventor: HUTCHINS RALPH PEARSON
IPC: C11B1/10
Filed: 1952-12-17
Abstract: <PICT:0730491/III/1> <PICT:0730491/III/2> Solid organic materials forming the residue from a solvent extraction process, e.g. the flaked solids remaining after the extraction of soya beans with hexane and like solvents, are freed from residual solvent and toasted to give a nutritious meal, by passing the solids downwardly through a series of superposed chambers in countercurrent to steam and the solvent vapours.  The solids are heated in the initial zones to a temperature above the boiling point of the solvent but below that of water and in the final zone to a temperature above the boiling point of water.  The chambers are heated by circulating steam through their jacketed walls and hollow floors which latter have separate vents for passage of vapours and solids which are circulated by rotary stirrers.  The superposed chambers A, B, C, D (Fig. 1) are formed by a jacketed wall 22 and hollow floors 23.  Each chamber has a hinged door 25 provided with a thermometer 27.  The upper chamber has a cover 28 provided with sight glass 29 and tubular elbow 33 connecting to a condenser.  Each floor (Fig. 2) is provided with a vapour passage 54 covered by a perforated plate and a solid exit 56 controlled by a gate 56a opened by external arms connected to floats 56b.  Chamber D has an outlet 62 leading to a condensate drain.  Each chamber is provided with stirrer arms 41 having bevelled leading edges 43 and a perforated steam pipe 50 extending along the trailing edge.  Rotation of the scrapers and supply of steam to the pipes 50 is effected through a hollow shaft 34 passing through the whole structure.  The shaft is provided with stuffing-box closures 39 and a head 40 connected to each stirring arm 41.  It is also formed with a passage 45 communicating in each chamber with a pipe 46 joined to the spray pipe 50 on the stirrer 41 and thus afford means for supplying steam to the pipes 50.
Patent GB-696284-A (GB)
Title: Improvements relating to electric gating circuits
Inventor: ALEXANDER MATTHEW ARNOLD
IPC: H03K17/88
Filed: 1949-12-14
Abstract: 696,284. Cathode-ray tubes. METROPOLITANVICKERS ELECTRICAL CO., Ltd. Nov. 30, 1950 [Dec. 14, 1949], No. 32106/49. Class 39(i) [Also in Group XL(c)] A gating circuit for passing a selectable recurrent portion of a cyclically recurring electrical signal comprises a cathode ray tube in which the beam is intensity modulated by the signal which is applied to control grid 4, Fig. 1, and which comprises deflecting plates 6, 6<SP>1</SP> or coils for recurrently sweeping the beam across obliquely slotted screen 7, with signal frequency or a sub-multiple frequency and further plates or coils (not shown) for deflecting the beam by a controllable amount in another direction so that the beam sweeps across the slot at times determined by the controlled deflection and passes the gated portions of the signal to collecting anode 3. Focusing means such as one or more electrodes 5, 51, or a coil, are provided. The cathode 2 may be a point or a line, and grid 4 may be a mesh or cylinder. The beam may be suppressed during the flyback periods by applying a suitable waveform to the cathode or grid. The screen 7 may be a conducting or insulating plate; in the latter case it may be in contact with the anode 3 or may be a coating on the surface of anode 3. If screen 7 is conducting it may have a positive potential but anode 3 should be more positive. Anode 3 may or may not be secondary emissive and may form the or the first secondary emissive electrode of an electron multiplier accommodated in the same envelope. The discharge tube may be used as a gating device in the arrangements described in Specification 692,615, [Group XXXVI], or for continuously measuring the amplitude of a recurring waveform at any selected point in the cycle. Plates may extend along the edges of slot 8, between 7 and 3, to prevent secondary emission from anode 3 from reaching plate 7. The Provisional Specification states in addition that the no deflection position may be varied so that the position along each sweep at which signals are passed to the anode may be varied as desired. By keeping the grid at a steady D.C. potential the device may serve as a pulse generator. The amplitude of the pulses can be controlled by varying the beam intensity, and the duration of the pulses by varying the sweep rate. By using two or more slots more than one pulse per sweep may be obtained, and the time spacing between the pulses may be varied. Only horizontal sweeps may be used the vertical deflection being dispensed with. Controllable vertical deflection may be used for example to vary the portion of a waveform under examination.
Patent GB-229048-A (GB)
Title: Apparatus for testing pipe joints and the like
IPC: G01M3/28
Filed: 1923-12-21
Abstract: 229,048. Ross, D., Weiser, R. F., and British Mannesmann Tube Co., Ltd. Dec. 21, 1923. Locating leaks. - Relates to apparatus for testing joints 1 in a pipe line 2, 3 of the kind which comprises an expansible circular casing 4 adapted, when in use, to be inserted in the piping to be tested and to carry an india-rubber or other resilient band 6<1> having lateral lips 6 forming, in conjunction with the inner face of the piping, a closed annular chamber 7 in communication with a pressure gauge 8', means for expanding the casing so as to render the chamber 7 fluid-tight, and means for admitting fluid under pressure into said chamber for ascertaining from the pressure gauge whether or not there is leakage through the joint 1. The casing 4 consists in a split ring whose two ends 4<1>, 4<2> overlap or are tongued, and are each provided with lugs 18, 20, the two lugs being forced apart to expand said casing by ,an eccentric 19, mounted on the lug 18, and adapted to bear on the other lug 20. In modifications, the lugs are forced apart by an hydraulic ram or by a right- and left-hand screw bolt. The air &c. is admitted to the chamber 7 through an attachment 8 upon which the pressure gauge is mounted.
Patent GB-193526-A (GB)
Title: Improvements relating to cleansing preparations
IPC: C11D17/08
Filed: 1921-11-30
Abstract: A cream or paste for cleaning the hands &c. and capable of use with or without added water, is composed, in the preferred form, of 15 per cent of oleic acid, 3 per cent of glycerine, 5 per cent of petroleum spirit, 3 per cent of potassium hydroxide, 30 per cent of ground silica, and 42 per cent of water.  The paste may be packed in collapsable tubes, and a tube of the preparation, together with a supply of sponge cloths, may be packed in a box to form a hand-cleaning outfit for motorists.
Patent GB-618378-A (GB)
Title: Improvements relating to door furniture and similar fittings
IPC: E05B1/00
Filed: 1946-10-30
Abstract: 618,378. Door roses. EVERED & CO., Ltd., and WILSON, A. H. Oct. 30, 1946. No. 32162. [Class 44] . The rose 10. Fig. 4, associated. with a door knob is fixed to the door by a washer 11, Fig. 5, adapted to be accommodated in the recess 10b and carrying r'earwardly extending prongs 11a which pass through the slots 10d and are forced in the door. The prongs have side notches 11c and the washer 11 is covered by the boss of the knob.
Patent GB-415040-A (GB)
Title: Process for producing three-colour photographs and kinematographic films on a film with layers on both sides
IPC: G03C7/28
Filed: 1932-11-14
Abstract: 415,040. Colour photography. GASPAR, B., 38, Innsbrucker Strasse, Schoneberg, Berlin. Nov. 14, 1932, No. 32179. Convention date, Nov. 17, 1931. Drawings to Specification. [Class 98 (ii).] Multicolour kinematograph films and photographs are produced by the simultaneous copying, optically or by contact, of threecolour selection pictures from one or both sides on to a film comprising three diffusely coloured silver halide layers disposed two layers on one side and one layer on the other side of the support, the individual layers being sensitized for rays let through by the overlying layers and by the dyestuff colouring the layer itself, and the dyestuffs in the layers being subsequently destroyed at the image or non-image portions. In an example, a purple-coloured emulsion layer is disposed over a yellowcoloured layer on one side of the support and on the other side is a blue-green layer. When copying from one side, the purple layer is sensitized for blue rays, the yellow for orangered, and the blue-green layer for infra-red. This middle layer may be sensitized for infra-red and the outer layers only for blue, copying being effected from both sides, upon the outer layers by means of white light from which infra-red has been filtered out and upon the middle layer by infra-red rays. The middle layer may act as a screening layer, and wash-out filter dyes may be added to the layers. Black and white or coloured copy matter may be employed. Thus, the double layer may be copied from a twocolour copy matter ; further black-and-white partial pictures may be diffusely coloured to obviate the adjustment of the colour and intensity of the printing light. After exposure dyestuff images may be formed by selective destruction of the dyestuffs at the image or non-image portions, as described in Specifications 395,718, 397,159, 397,188, and 397,192. The colours of the outer layers may be corrected by reduction or intensification or by diffuse coloration with a correcting colour. The Specification discloses a number of examples of three-colour material, involving variations in the relative disposition and sensitization of the purple, yellow and blue-green layers. Specifications 375,338 and 408,991 also are referred to.
Patent GB-393864-A (GB)
Title: Concrete mixing and agitating apparatus
IPC: B28C5/42
Filed: 1932-11-15
Abstract: 393,864. Mixing-machines. BALL, C. F., 2354, N. 72nd Street, Milwaukee, Wisconsin, U.S.A. Nov. 15, 1932, No. 32256. [Class 86.] A concrete-mixing machine, mounted on a vehicle is tiltably mounted to elevate the discharge shoot so that the concrete may be poured into raised forms &c. As shown, the drum 14, fitted with inclined mixing and discharging vanes, is carried on a pivoted cradle 13 which can be raised by means of a pressure ram 24 co-operating with a cam surface 26. The drum is rotated by a separate engine 15 also mounted on the cradle. In a modification, the cradle is pivoted at a point between its ends and is lifted directly by a ram. Specification 360,149 is referred to.
Patent GB-464929-A (GB)
Title: Improvements in or relating to means for forming glass bottles, jars and the like
Filed: 1935-11-21
Abstract: 464,929. Glass manufacture. PEARSON, T. F. Nov. 21, 1935, No. 32260. [Class 56] Relates to a machine for making glass bottles or like articles and of the type in which a blowhead supports a neck or ring mould and encloses a reciprocating mouthforming plunger having at least one passage through which pressure and suction is applied to the blowhead. According to the present invention, the plunger is resiliently suspended on a movable guide element which moves the plunger into or out of position within the ring mould. The cylindrical blowhead 10 is locked to the ring mould 13, when the latter is closed, by a ring mould holder 11. A piston 15 slides within the blowhead and has a hollow stem 16 which terminates in a cap 17 having an internal shoulder 18. A plunger 19 with a hollow stem 20 is provided with radial passages 21 connected with the bore of the stem 20, and the stem has an enlarged head 25 which rests on the shoulder 18 so that the plunger is suspended from the cap 17. A spring 22, between the plunger and the shoulder 18, steadies the plunger, and a second spring 23, between the cap 17 and the blowhead, maintains the plunger in its uppermost position. The plunger, being free to move relatively to the stem 16 and to the guiding-piston 15, is free to centre itself when it is lowered into the ring mould.
Patent GB-1098096-A (GB)
Title: Method of laser modulation by vibrations
IPC: H01S3/106
Filed: 1966-07-18
Abstract: 1,098,096. Lasers. COMPAGNIE GENERALE D'ELECTRICITE. July 18, 1966 [July 19, 1965], No. 32265/66. Heading H1C. A laser, including laser crystal 10 and cavity mirrors 2, 13, includes a Fabry-Perot interferometer comprising partially reflective surfaces 8, 9, one of which is movable to vary the Q of the main cavity. Dielectric mirror 8 is mounted on a glass plate 7 carried by a magnetostrictive or electrostrictive cylinder 5. Transmission of radiation through the interferometer 8, 9 depends on the spacing of the interferometer reflectors which is controlled by transducer 5 to provide either pulsed operation or modulated continuous operation.
Patent GB-830074-A (GB)
Title: Improvements in and relating to electric lighting apparatus
IPC: H05B41/32
Filed: 1955-11-11
Abstract: 830,074. Lamps. LACEY, C. L. Nov. 12, 1956 [Nov. 11, 1955], No. 32280/55. Drawings to Specification. Classes 75(2) and 75(4) [Also in Group XXXV] A photographic lighting unit comprises a helical discharge tube with an internal diameter large enough to contain the neck of main voltage filament lamp of say 100 watts mounted in a reflector which may be of parobolic form. The tube and lamp are secured to a movable carrier sliding in the neck of the reflector to vary the lighting angle. A cylindrical diffuser covers. the tube and a supplementary curved reflector is mounted either on the diffuser or the lamp so that the light distribution from both sources is the same. The carrier and lamps may be withdrawn through the neck of the reflector for non-directional lighting.
Patent GB-1471370-A (GB)
Title: Electro-mechanical transducers
IPC: H04R9/04
Filed: 1974-07-22
Abstract: 1471370 Moving coil transducers M GERSTEN 22 July 1974 [25 July 1973] 32307/74 Heading H4J An electromechanical transducer comprises a winding formed of wire having an anodic electrically non-conductive surface and a metallic heat radiator bonded to the anodic electrically non-conductive surface. The voice coil of a moving coil loud-speaker is of anodized aluminium wire 1 of rectangular cross-section. The wire is preferably of ribbon form wound on its narrow edge about a mandrel (not shown). An epoxy, polyamide or ceramic cement (5) Fig. 2 (not shown) is applied to the outside surface of the winding thereby formed and then an anodized aluminium retainer strip 6 is wound over the cemented portion to hold the turns in compression. After the cement has dried the winding and attached retainer strip 6 are removed from the mandrel. The ends 7, 7<SP>1</SP> are dipped in an alkali preparation to remove the anodizing and are then tinned with solder having aluminium flux. The anodizing of the wire 1 electrically insulates the turns from one another. However, the anodizing coating is only approximately 1 micron thick and there is good heat transference from the winding to the strip 6, which functions both as a heat radiator and heat conductor. The strip 6 may be assembled to a titanium cone utilizing polyamide cement. The voice coil may be used in the loud-speaker described in Specification 1,245,541. Alternatively the strip 6 may be mounted internally of the winding. Where the strip 6, as well as the wire 1, is anodized the cement (5) penetrates the surface anodization of both the wire 1 and strip 6, forming a firm interdigitated bond. If desired the voice coil of rectangular wire may be wound edge to edge rather than "cheek to cheek". The voice coil is applicable to ultrasonic transducers, and to electromechanical transducers of high power dissipation. The coil is weather and salt water resistant, impervious to moisture penetration and fungus. The coil may be air, water or oil coiled.