baber/WOPTO huggingface dataset:
Patent GB-101146-A (GB)
Title: Improvements in or relating to Feed Mechanism for Printing Presses.
Inventor: HARRIS ALFRED F
IPC: B65H9/14
Filed: 1916-07-21
Abstract: 101,146. Harris, A. F. Aug. 6, 1915, [Convention date]. Sheet-registering devices. - In printing - machines wherein the sheets are fed up to stops on a rotating cylinder by positively-driven feed-rollers, such as described in Specification 8176/12, the feedrollers are so operated and driven as to engage the sheet while they are not rotating. In the arrangement shown, the sheet 32 is first fed by tapes 33 and a table 37 &c. into position against rising and falling front stops 28, and is nipped between sets of feed-rollers 30, 31 while they are not rotating, and is then fed by them up to the stops 38 on the rotating impression cylinder 2. The rollers 30, 31 are geared together, and the shaft 11 of the rollers 30 is driven by a toothed segment 5 oscillated by a cam 4 engaging a toothed wheel 8, which drives the shaft 11 intermittently in one direction through a one-toothed rachet 8<a>. The rollers 31 are in arms on a shaft 18 and are moved into and out of contact with the rollers 30 by arms 17 operated by arms 20 on a shaft 21 oscillated by an arm 22, cam 24, and spring 24a. The stops 28 are on arms pivoted at 29 and operated by an arm 34 and cam 36. The cam 4 is formed so as to stop the rotary movement of the shaft 11, and consequently of the rollers 30, 31, at the time they are brought together, so that they nip the stationary sheet while they are at rest. Parts of the periphery of the rollers 30 may be cut away to allow the sheets to be fed between the roll to the stops 28.
Patent GB-117311-A (GB)
Title: A Bearing Instrument for Ascertaining the Offshore Distance.
Inventor: GILLIE JOHN WILSON
IPC: G01C3/00
Filed: 1917-07-17
Abstract: 117,311. Gillie, J. W. July 17, 1917. Departure rules.-A navigation instrument for observing the bearings of a point on shore, and determining the off-shore distance by means of two such bearings, and the ship's known run in the interval between them, comprises a dial A graduated wholly or partly in quarter points, and provided with tables of off-shore distances corresponding to distances run between specified bearings. Each half point and point on the bow from one and a half to three and a half points is linked up with its double value. The dial and sights are mounted on a rod adjustably secured to the ship's bridge rails.
Patent GB-1088266-A (GB)
Title: Gramophone pick-up
IPC: H04R1/16
Filed: 1965-03-11
Abstract: 1,088,266. Gramophone pick-ups. M. URBEN. March 11, 1965, No. 10308/65. Heading H4J. In a gramophone pick-up, a piezo-electric element 4 (Fig. 1) is completely supported in slits 3 at opposite ends 1 of an elastic plastics coupling member the centre portion 6 of which is hollow. The coupling member is mounted in a pick-up casing 11 (Fig. 3) which exerts clamping forces thereon, the clamping forces being transmitted through the coupling member to the element 4 at or near the opposite ends of the slits 3. The coupling member has outer plane faces 5 adapted to engage corresponding plane faces of the pick-up casing 11. Two styli 16 are provided each mounted on a stylus holder 14, 15 and engaging one or other of the end portions 1. Vibrations of a stylus 16 are transmitted to the adjacent end portion 1. Vibrations of relatively high frequency and low amplitude are substantially only transmitted to the portion of the element 4 within the adjacent slit 3 while vibrations of medium or low frequency and relatively high amplitude are also transmitted to the centre portion of the element 4. The element 4 is a " bender " and may be of barium titanate, lead titanate or lead zirconium titanate. The coupling member shown is used in a pick-up of turnover type. Lugs 10 at one side engage the pick-up casing at one side and a projection 7 engages the pickup casing at the other side. One stylus only may be provided, in which event the coupling member need not be symmetrical.
Patent GB-118299-A (GB)
Title: Improvements in Apparatus for Stamping or Impressing the Edges of Coins, Medals, Medallions and the like by Means of Movable Dies.
Inventor: SHEPARD FREDERICK CROFT
IPC: B44B5/02
Filed: 1917-07-18
Abstract: 118,299. Shepard, F. C. July 18, 1917. Embossing and stamping.-Coins, medallions, and the like, of circular or oval form, are stamped or impressed on their edges by a series of radial dies c working in grooves in the rim of a. rotatably mounted die holder a. As the holder a rotates, slides b, b, press all the dies in succession against the edge of the coin, which is placed in the centre. The slides b may be replaced by rollers, or by percussion devices, and in the latter case the holder a may be fixed and the percussion devices moved round it to act on the successive dies. The dies may have radial sides and concentric ends, as shown at c, or rounded ends as at e, f, or flat ends as at d, or parallel sides as at d, f, and may be held in position by springs.
Patent GB-336197-A (GB)
Title: Improvements in or relating to kinematograph apparatus
IPC: G03B15/08
Filed: 1929-04-05
Abstract: 336,197. Proszynski, K. de. April 5, 1929. No Patent granted (Sealing fee not paid). Kinematograph apparatus. -In apparatus for producing or exhibiting images arranged in ranks on a broad film, the film or lens being reciprocated in the direction of the image ranks by means of a rack and two pawls, and being moved perpendicularly to the ranks at the end of each rank, means is provided comprising an externally operable member whereby the length of each feed movement in the direction of the ranks may be adjusted in accordance with the shrinkage of the film, the adjustment being made before or during the operation of the apparatus. The invention is shown as applied to an apparatus constructed as described in Specifications 335,226 and 335,891. Pawls 16, 17 are separately pivoted on levers 18, 19 and alternatively engage a rack 14 to feed the films intermittently in the direction of the ranks, the levers being pivoted on hubs 23, 22, respectively,. carried by links 57, 58, themselves pivoted at 94, 95 on a frame member 116. A rod 59 has a. screw-threaded engagement with the hub 23, and its end engages in a cavity 58<a> of the hub 22, the hub 22 being pulled by a spring 66 attached to it. The other end of the rod 59 is squared, and slidably engages a knob 62 so as to turn with it; rotation of the knob alters the separation of the hubs 23, 22, and adjusts the distance between the pawls 16, 17. A tube 60 surrounds the rod 59 and its end bears against the hub 23; it is threaded, and passes through a non-rotatable nut 64 engaging the end 65<1> of a bar 65. A knob 61 engages grooves or slots in the tube 60, and rotation of the knob 61 moves the hubs 23, 22 simultaneously to left or right to vary the stroke of the pawls. The bar 65 is supported at one end by a pivoted rod 71 linked to an externally operable member in the form of a hand lever 72 movable over a scale by a knob 92. A pin 90 on the bar 65 engages, under the tension of the spring 66, one of a number of notches in a lever 67 pivoted at 91 and carrying a roller 68 engaging a cam 69 on a continuously rotated shaft 70. The movement of the bar 65, derived from the cam 69 through the lever 67, modifies the length of stroke of the pawls to effect compensation for film shrinkage, and this movement may be adjusted by hand operation of the lever 72, so as to vary the notch in the lever 67 engaged by the pin 90. The passage of the pin over the notches during the adjustment provides an indication of the amount of adjustment, and a scale on the film carriage readable against a fixed pointer enables the position of the carriage to be read.
Patent GB-545516-A (GB)
Title: Improvements in kneading, mixing, mincing or like machines for kitchen use
IPC: A47J43/044
Filed: 1941-08-21
Abstract: 545,516. Mixing &c. machines. AKTIEBOLAGET ELEKTROLUX. Aug. 21, 1941, No. 10670. Convention date, Sept. 16, 1940. Addition to 536,727. [Class 86] The mixing, grinding, beating or like machine of the parent Specification is modified in that, instead of the position of the scraper blade being determined by the engagement of the horizontal portion of its U-shaped holder with a stationary groove, the restraining action on the holder is removed, the material within the rotating container itself forcing the blade against the wall of the container. Accordingly, the leg 16 of the U-shaped holder 15 carrying the blade 18 is freely pivoted within a pillar 11 extending vertically from the base 10 of the machine. An arm 13 supported by the upper end of the pillar and carrying rotatably an agitator 14 serves also as a stop to limit the pivotal movement of the holder. The two limbs 16, 17 of the holder 15 may be interconnected so as to provide for slight relative pivotal movement, and a light spring may be disposed between the holder 15 and its support to prevent the blade swinging freely within the container when the latter is empty or the machine is being moved about.
Patent GB-352475-A (GB)
Title: Improvements relating to means for pouring liquids into vessels
IPC: H01M50/618
Filed: 1930-04-04
Abstract: 352,475. Filling accumulator cells. BRITANNIA BATTERIES, Ltd., 233, Shaftesbury Avenue, London. April 4, 1930, No. 10776. Convention date, April 5, 1929. [Class 125 (ii).] A device for filling opaque vessels with liquids to suitable levels, particularly electrical accumulator cells, comprises an outlet tube e the end of which can be manually separated from the plate y by operating a lever k against the action of a spring h. An outer tube f having discharge holes p<1>, p<2> surrounds the tube e and terminates in a funnel-shaped upper end. When the level of liquid in the receptacle d rises above the holes p<1>, p<2> the liquid rises in the tube f so as to be perceptible in the funnel and the supply is cut off. The lever k is pivoted at l and operates the part n through the joint m. A pressure-reducing valve may be incorporated with the inlet b. An adjustable collar o is provided in the tube f for fixing the depth to which the tube is inserted into the receptacle.
Patent GB-458649-A (GB)
Title: Improvements in or relating to filters
IPC: B21F27/18
Filed: 1936-04-15
Abstract: 458,649. Making filters. KNECHT, A., 48, Haldenstrasse, Bad-Canstatt, Stuttgart, Germany. April 15, 1936, No. 10802. Convention date, April 15, 1935. [Class 83 (ii)] In the manufacture of gap-filters wherein round wire is coiled in a shallow helical groove cut in the supporting body so as to leave a gap between the convolutions, the winding of the wire is carried out simultaneously with the cutting of the groove, and the wire is fed continuously, under tension, to each convolution of the groove as such is being cut and is held in position solely by maintenance of the tension. A lathe is used to cut the groove in the body portion a and wind the wire b, the saddle e carries a supply of wire and a brush h clears the cut before the wire is applied.
Patent GB-276594-A (GB)
Title: Improvements in grinding mills
IPC: B02C7/06
Filed: 1927-04-22
Abstract: 276,594. Lister et Cie., R., and Lister, F. V. April 22, 1927. Conical mills; disc mills. - In a grinding-mill for finely disintegrating or producing a colloidal mixture of materials and of the kind comprising a rotor rapidly rotating within a stator or casing, the clearance space between the rotor and stator is of gradually decreasing width from the inlet end and is substantially parallel for a portion of its length at the outlet end. As shown, the casing or stator comprises two parts a, b secured together, and the conical rotor c is mounted upon an horizontal shaft d. The space f between the stator and rotor is of gradually decreasing width from the inlet towards the outlet end, and at a distance from the latter the walls are formed to give a parallel passage f<1>. Thrust bearings h may be provided to take up the axial pressure on the shaft d. The rotor may be mounted upon a vertical shaft, and the working surfaces of the rotor and stator may be plain or grooved.
Patent GB-581452-A (GB)
Title: Improvements in electric selective signalling systems
IPC: G08C19/20
Filed: 1944-06-06
Abstract: 581,452. Type printing telegraphy. FROST, L. R. June 6. 1944. Nos. 10848 and 10849. [Class 40 (iii)] [Also in Group XXXVIII] A mechanism capable of acting as a sender or as a receiver in an electrical system for keeping two shafts in synchronism employs a differential gear of which the planet wheel is carried on the controlling or controlled shaft and which is arranged so that the relative rotation of the sun wheels controls the sending of a variable signal or is controlled by a received signal, such signal being representative of the direction and extent of the relative rotation. The mechanism may be employed in a teleprinter system. In Figs. 1, 3 the sun wheels 10, 11 are constrained against rotation in opposite directions by means of pawls engaging ratchets 14, 15, and the planet wheel 18 is carried by the shaft 12. The ratchets 14, 15 control impulse springs 25, 26 and are controlled by stepping magnets 27, 28. Keys 22 are provided having differently inclined flat ends 24 for engaging a flat portion 23 of the shaft and rotating it to a variable extent. According to the direction of the rotation one or other of the sun wheels rotates and sends a corresponding number of impulses. Similarly, impulses received by the magnets 27, 28 rotate the shaft 12 in the appropriate direction. Fig, 4 shows two mechanisms connected by a line 34 over which the impulse springs send positive or negative impulses, the magnets 27, 28 being polarised by rectifiers, the sending or receiving condition being determined by the position of switches 35, 84 associated with each mechanism. The sun wheels may be controlled by the magnets through escapements instead of directly, and may be constantly rotating, in which case impulses are sent when there is relative rotation and received impulses produce selective braking. In Fig. 5, the sun wheels 10, 11 are constrained against movement in the same direction and the sending keys 22 effect rotation of the planet wheel 18 abont its axis. For this purpose, the keys when depressed shift a bar 37 along the shaft 12 by engaging a V-shaped depression therein and this in turn shifts a frame 38 which has a rack and pinion connection 36, 55 with the planet wheel. The control between two mechanisms may take the form of a bridge circuit, Fig. 6, in which sliders 40 attached to the bars 37 move over resistances 41. When the slider 40 at the sender is moved, polarised relays 42 respond, and that at the receiver connects up a motor or other device which rotates the sun wheels thereat until the balance is restored. In this arrangement also, the sun wheels may be constantly rotating.
Patent GB-952604-A (GB)
Title: Improvements in ionization chambers
Inventor: OHMART PHILIP EDWIN
IPC: G05D5/03
Filed: 1960-03-28
Abstract: 952,604. Ionization chambers. OHMART CORPORATION. March 28, 1960, No. 10905/60. Drawings to Specification. Heading HID. [Also in Divisions G1 and G3] An ionization chamber for use in an automatic control or measuring process in which a current derived from the chamber in response to radiation emitted by a radioactive source or X-ray tube varies in accordance with a variable condition in the process, e.g. the thickness of a sheet of material, is deliberately arranged to operate at an ion-collection efficiency of below 85%, preferably between 10 and 85%, since this is found to produce a sudden drop in the noise level as compared with operation at 100% ion collection efficiency and it is believed that the effect is due to the formation of an ion cloud adjacent the positive electrode, the ion cloud having the effect of smoothing out the statistical variations of ion formation, but not adversely affecting the overall current. Parameters which may be adjusted to vary the ion-collection efficiency include the applied voltage, the electrode spacing, the gas pressure and the nature of the filling gas, particularly in respect of its molecular weight and ionization potential. The gas filling may comprise oxygen, nitrogen or argon or a mixture of these gases.
Patent GB-826912-A (GB)
Title: Improvements in the formation of coatings on titanium and alloys thereof
Inventor: KING GEORGE ROLAND
IPC: C23C22/37
Filed: 1955-04-15
Abstract: A complex fluoride coating is formed on a surface of titanium or an alloy consisting predominantly of titanium by treating the surface with an acid aqueous solution containing fluoride ions and ions of sodium, potassium and/or ammonium, with or without lithium, the coating formation being accelerated by incorporating divalent tin, trivalent arsenic, pentavalent vanadium, hexavalent chromium, quadrivalent or hexavalent molybdenum, or hexavalent tungsten in the solution.  The preferred accelerators are, respectively, stannous chloride, sodium arsenite, sodium metavanadate, sodium chromate, molybdenum disulphide, sodium molybdate and sodium tungstate.  They may be added to the solutions disclosed in the parent Specification.
Patent GB-766896-A (GB)
Title: A new or improved method of and apparatus for the production of reconstructed or cast stone
Inventor: HOUNSELL MICHAEL
IPC: B28B7/36
Filed: 1954-04-14
Abstract: A method for the production of reconstructed or cast stone comprises preparing a master pattern of natural stone, placing the master in a mould, allowing rubber, synthetic rubber or vinyl resinous substance to run over the shaped surface to form a matrix having a reverse patterned surface, removing the matrix when set and placing it in another mould with the reverse patterned surface exposed, allowing a concrete mix to run over the reverse patterned surface and removing the cast block when set.  The concrete may be cast in a multiple mould comprising a framework with partitioning plates, with the matrices located in the compartments.  These compartments may be used instead of a separate mould for making the matrices.  The size of the cast blocks may be adjusted by relatively moving the partitions.
Patent GB-1149109-A (GB)
Title: Preparation of semiconductor compounds
IPC: H01L21/00
Filed: 1968-03-06
Abstract: 1,149,109. Semi-conductor devices. INTERNATIONAL BUSINESS MACHINES CORP. 6 March, 1968 [15 June, 1967], No. 11005/68. Heading H1K. A semi-conductor compound having at least three components is deposited by liquid phase epitaxy on a solid crystalline substrate. The composition of the compound is determined by the rate of cooling of the melt. A mixture of Ga, Al and an excess of pure Ga As is melted in an inert atmosphere, a substrate of GaAs, which may be doped with Sn, is inserted and the system allowed to achieve equilibrium. The temperature of the melt is then reduced at the desired rate to epitaxially deposit a layer of Ga 1-x Al x As (0 < x < 1). The melt may also contain Te as a dopant. A PN junction may be obtained by stopping the cooling, introducing Zn into the melt, raising the temperature slightly and allowing the system to achieve equilibrium, and then continuing the cooling at the previous rate. The composition of the deposited layer may be altered to form a heterojunction by abruptly changing the rate of cooling. If the cooling rate exceeds 10‹ C. per minute essentially pure GaAs is deposited. A gradual variation in the composition of the deposited layer may be achieved by slowly altering the cooling rate. A light-emitting diode may be produced by forming a PN junction in the epitaxial layer, lapping off the GaAs substrate, and cleaving on four sides. The diode may be provided with an anti-reflection coating in the form of a layer of epoxy resin. An optoelectronic transistor may be produced by growing a layer of N-type Ga 1-x Al x As followed by a layer of GaAs on a P-type GaAs substrate. The epitaxial GaAs layer is P-type and may be doped by diffusion after growth or by counterdoping during growth. The compound may also be Ga 1-x Al x P (0 < x < 1) deposited on a GaP substrate.
Patent GB-311906-A (GB)
Title: Improvements in or relating to incandescent electric lamp fittings
IPC: F21V17/12
Filed: 1928-04-16
Abstract: 311,906. Scorer, R. I. April 16, 1928. Mounting electric lamps in larterns. - Relative axial adjustment of an electric lamp holder and a lamp casing, or globe or reflector holder, is obtained by means of bayonet joint fastenings embodied in a telescopic connection be tween the lamp casing, or globe or reflector holder, and an intermediate gallery attached, to the electric lamp holder. In the form shown in the Figure, a globe holder a is provided at its upper end with an internal flange c for telescopio suspensional connection to a somewhat smaller gallery d provided at its lower end with an external flange e and at its upper end with an internal flange f adapted to be clamped to an electric lamp holder. The flange c is provided with a series of circumferentially spaced open slots g adapted to cooperate with two or more axiatly spaced series of circumferentially spaced external studs or embossments h, i on the gallery d. When in the contracted position the flange e rests on a series of circumierentially spaced stops j indented from the wall of the holder a. The relatively adjustable parts may be automatically locked in any of their alternative positions by means of a vertical flexible spring blade k. The lower end of the blade k is secured as by means of a rivet l to the holder a, whilst its upper end projects through a slot m in the flange c to co-operate with a series of circumferentially spaced open slots n in the flange e, and to form a finger-piece o.
Patent GB-811918-A (GB)
Title: Improvements in or relating to crucibles for melting metals
Inventor: GARMY ROBERT JAMES
IPC: F27B14/10
Filed: 1955-07-19
Abstract: 811,918. Crucibles. REPUBLIC STEEL CORPORATION. July 19, 1955, No. 11142/57. Divided out of 811,917 [Group XI]. Class 82(1) [Also in Group. XI] A crucible adapted to enclose heat producing means comprises vertically extending cylindrical concentric inner and outer shells, 4a, 4b separated by an annular space 4c, the ends of the shells being closed to define a shell water jacket 4c shorter than the inner shell; and the crucible has a base plate comprising inner and outer plates 112, 113 having central portions spaced apart to define base water jacket 116. Several arcuate ribs 112a fixed on the underside of the upper base plate 112 abut on the lower plate 113 to support the upper plate 112 and a metal ingot formed in the crucible. A part of the inner base plate 112 projects up within the lower end of the inner shell 4b above the lower end of the shell water jacket 4c so that the entire end portion of the shell exposed to the heating means is directly cooled by the jacket. Several water inlets 104 are spaced at an angle around the periphery of the jacket adjacent its lower end, and several water outlets 105 are arranged adjacent but spaced from the upper end of the jacket 4a. Each outlet 105 is surrounded by a U-shaped tube 106 open at the top ensuring circulation of water through the upper end of the shell jacket 4c. The base water jacket 116 has a diameter greater than its axial length and has several water inlets 117 spaced radially as in Fig. 3 and a central outlet 114 in the base. Each water inlet 117 extends substantially to the middle of the axial length of the jacket and has on its inner end an elbow 118 directing water at angle, preferably perpendicularly to a radius from the outlet 114 so that water is circulated in the base jacket with a swirling motion. The ribs 112a are streamlined to avoid turbulence in the water flowing round them. The crucible is used in melting metals such as zirconium by arcs and is mounted on springs on jacks on a trolley for pressing the crucible up against a shell containing movable electrodes for the arcs, as described in Specification 811,917, which is referred to.