baber/WOPTO huggingface dataset:
Patent GB-409358-A (GB)
Title: Improvements in or relating to bridge duplex telegraph systems
IPC: H04L5/14
Filed: 1932-10-29
Abstract: 409,358. Duplex telegraphy ; artificial lines. ELECTRICAL RESEARCH PRODUCTS, Inc., 195, Broadway, New York, U.S.A.-(Assignees of Gilbert, J. J. ; 16, Pine Street, Douglaston, New York, U.S.A.) Oct. 29, 1932, No. 30380. Convention date, Feb. 3. [Class 40 (iii).] In a bridge duplex telegraph system a preliminary approximate balance of the cable as a whole is effected by varying the individual inductances, capacities or resistances of an artificial line or balancing network, and further adjustment of individual relatively short sections of the line or network is effected to minimize the unbalance contribution of each section of the line or network. Transmitting and receiving instruments T, Rare associated with corresponding distributers TD, RD, and the artificial line AL is adj usted to give an approximate overall balance so that the current in the receiving instrument due to a transmitted impulse, such as that shown in Fig. 4, may be somewhat of the form shown in Fig. 5. The receiving instrument R is connected to the cable by virtue of segments 41, 42 ... for short periods p1. p2, . . . . during the intervals tl, t2 ... , allotted to the transmission of impulses, and the sections of the cable are balanced by variation of the resistance element of the corresponding sections of the line or network, so that during the periods when the receiving instrument is connected, the unbalance contribution is reduced. Fig. 8 illustrates the unbalance effects during the transmission of a combination of impulses shown in Fig. 7 with the unbalance contributions of each impulse at the receiving periods p1, p2, ... of the time intervals t1, t2 ... allocated to the transmitted impulses. Each section of the artificial line or network preferably corresponds to the length of cable over which an impulse is transmitted in the signal impulse time intervaltl, t2, .... and the unbalance contributions during successive periods, e.g. p2, p3, are preferably arranged to be of opposite sign.
Patent GB-307809-A (GB)
Title: Improvements in pistons for fluid pressure engines
IPC: F16J1/04
Filed: 1927-11-12
Abstract: 307,809. Talbot, E. Nov. 12, 1927. Pistons; connecting-rods. - In a piston comprising a tubular or bent sheet-metal skirt 2 attached to the head 6 bv means of a radial flange, the, flange is formed by compressing a groove in the skirt until the sides 3, 4 of the groove are in contact. The flange engages recessed seatings, either in the gudgeon-pin bosses 7 only, or also in flanges 11 connecting the gudgeon-pin bosses. Gudgeon-pin retainers 16, as described in Specification 278,487, may be employed, the retainers engaging a groove at the edge of the skirt below the scraper-ring groove 14 and passing through apertures 18 in the radial flange. Specification 306,430 also is referred to.
Patent GB-1092922-A (GB)
Title: Device for producing an image in a light-optical electronic-optical image forming system
IPC: G02B23/12
Filed: 1965-07-19
Abstract: 1,092,922. Image converter tubes. ELTRO G.m.b.H. & CO. GESELLSCHAFT FUR STRAHLUNGSTECHNIK. July 19, 1965 [Aug. 6, 1964], No. 30558/65. Heading HID. In an image converter tube with a curved luminescent screen 4, there is provided a glass fibre optic plate 5 as shown or, alternatively, a bi-concave lens to flatten the light image. The luminescent screen may be carried by the optical element. The photocathode 2 is concave as shown.
Patent GB-1526035-A (GB)
Title: Hydrolysis-stable polytriazines and a process for their production
IPC: C08G73/00
Filed: 1976-07-22
Abstract: 1526035 Polytriazines BAYER AG 22 July 1976 [24 July 1975] 30593/76 Heading C3R Polytriazines are obtained by polytrimerizing aromatic cyanic acid esters of formula where A is an aromatic radical which may be interrupted by a bridge member and n is 2 to 4, the compound having alkyl and/or phenyl radicals and/or halogen atoms in at least the ortho- and ortho<SP>1</SP>-positions to at least one -OCN group. Prepolymers may be obtained in a first stage of heating the starting materials and cured products obtained by further heating in a second stage, or the polymers may be obtained in a single stage. Catalysts may be present. In Examples polytriazines are obtained from bis- 2,2-(4-cyanato-3,5-dimethyl phenyl)-propane, 2,6-di-tert.-butyl hydroquinone dicyanate, 2,4,6- trimethyl resorcinol dicyanate and 2,3,5,6- tetramethyl hydroquinone dicyanate; the catalysts used are zinc octoate, pyrocatechol, diazabicyclo-(2,2,2)-octane, zinc chloride and tin octoate.
Patent GB-636644-A (GB)
Title: Improvements in the moulding of baker's dough and the like plastic material
IPC: A21C3/02
Filed: 1947-11-19
Abstract: 636,644. Dough-sheeting machines. VICARS, Ltd., T. & T., and NAYLOR, J. F. Nov. 19, 1947, No. 30656. [Class 87 (ii)] A machine for sheeting dough or like plastic material comprises, a pair of rollers 3, 5, Fig. 1, having the same direction of rotation, a third roller 4 rotating in the opposite direction to but on an axis parallel with the axes of the rollers 3, 5, a feeding conveyer 2, a vertically adjustable delivery conveyer 10, and concave surfaced scraper blades 9, 8, operating on rollers 4, 5 respectively. The rollers 4, 5 have their axes preferably lying in a plane inclined to the horizontal, means being provided to adjust the space between either of the top rollers and the lower roller 4. The roller 3 is grooved, and may be adjusted away from the plain roller 4 by links 11 rotatable about the axis of roller 5, so that the apparatus may also be used as a gauging machine. In operation, dough 1 is fed by the conveyer 2 to the bight between the rollers 3, 4, compressed within the space 7 and delivered as a continuous sheet from between the rollers 4, 5. The scrapers remove the sheet to the delivery conveyer 10. When used as a gauging machine, Fig. 3, the roller 3 is lifted as shown and the thick sheet of dough 12 fed from conveyer 2 to the reducing rollers 4, 5. The conveyer 10 is adjustable, and the scraper blades may also be adjusted to remove the sheet first from either roller 4 or roller 5. According to the Provisional Specification means are provided to adjust the speed of the feed conveyer 2.
Patent GB-1504674-A (GB)
Title: Circular knitting machine having a device for controlling the knitwork density
IPC: D04B9/02
Filed: 1976-07-23
Abstract: 1504674 Knitting-machines ELITEX 23 July 1976 [28 July 1975] 30739/76 Heading D1C [Also in Division G3] Knitwork density .in a circular knitting machine is controlled by instructions from a memory 1 varying the axial position of the needle cylinder 7 relative to the knocking- down plane of the sinkers via a servo loop 2-8. 2 is an arithmetic unit, 3 a D/A converter, 4 a motor control circuit, 5 a motor, 6 a chain drive and 8 a transducer indicating needle cylinder position. A second embodiment (Fig. 2 not shown) enables a gradual change between existing and commanded needle cylinder positions to be achieved by calculating intermediate command values on each revolution of the cylinder by adding or subtracting a small increment.
Patent GB-1048526-A (GB)
Title: Improvements in and relating to linkages for two components capable of being folded angularly relative to each other
IPC: E05F1/12
Filed: 1965-07-20
Abstract: 1,048,526. Collapsible fins for missiles. CONTRAVES A.G. July 20, 1965 [Aug. 11, 1964], No. 30758/65. Heading F3A. [Also in Division E2] A collapsible rocket fin comprises two parts 1, 2 which in the extended position have contacting plane surfaces. Each of these surfaces is recessed and from the bottom of the recesses 10, 20, respectively, extend guide channels for slidable holders 12, 22, respectively, each holder being held captive in its respective channel by a return spring 13 or 23. To hold the two parts 1, 2, together, two bell-crank levers 14, 24 are mounted on a common pivot 3, the lever 14 having a long arm pivoted on holder 12 and a short arm pivoted in recess 20 and the lever 24 being connected in mirror image fashion to holder 22 and recess 10. Two such joints may be provided for the two fin parts. Latching means (not shown nor described in the Specification) may be provided to hold the fins in the extended position.
Patent GB-164773-A (GB)
Title: Improvements in and connected with the emptying, filling and cleaning of locomotive boilers
IPC: B61C8/00
Filed: 1919-12-09
Abstract: 164,773. Micheli, G. de. Dec. 9, 1919. Emptying; washing-out; filling.- In a plant for discharging, washing- out, and refilling locomotive boilers, the fresh feed is heated in a coil E immersed in the discharge water in a tank I, and then flows into the feed tank G, from which it is withdrawn by a pump F and continuously circulated through heat exchangers B heated by the discharge water on its way to the tank I. The discharge water passes through a sand filter D, and is used for washing-out purposes. An automatic regulator C controls the flow of the feed-water into the feed-tank in accordance with the flow of discharge water. Pumps L, M having air reservoirs in their discharge pipes take the water from the tanks to mains in the engine sheds. The pumps are actuated by motors controlled automatically by switches actuated by the pressure acting on the pump pistons. The discharge pipes in the tanks are supported by floats N, N<1>.
Patent GB-813240-A (GB)
Title: Defoliating agent
IPC: C07C255/58
Filed: 1957-10-02
Abstract: p-Chloro-anilinoacetonitrile is prepared by reacting in aqueous solution hydrocyanic acid or salts thereof, e.g. alkali cyanides, with a mixture of p-chloraniline and formaldehyde or with a reactive functional derivative of formaldehyde, e.g. its sodium bisulphite addition product, or with a p-chloraniline compound of formaldehyde, e.g. N,N1-methylene-bis-p-chloraniline and 1,3,5 - tris - (p - chlorophenyl)-hexahydro-s-triazine.  The compound may also be prepared by reacting p-chloraniline with glycolic acid nitrile or reactive esters thereof, in particular with halogen acetonitriles or with aminoacetonitrile.ALSO:A defoliating composition comprises p-chloroanilinoacetonitrile in a finely distributable form and a solid carrier being one or more of (a) a solid material, (b) an aliphatic hydrocarbon, (c) a cyclic hydrocarbon having an atomic weight greater than 92, (d) a chlorinated hydrocarbon, or (e) a mineral or vegetable oil.  Specified carriers are talcum, diatomaceous earth, kaolin, bentonite, calcium carbonate, boric acid and tricalcium phosphate; kerosene, toluene, xylene, tetrahydronaphthalene or alkylated naphthalenes; tetrachlorethane, ethylene chloride, high-boiling mineral oil fractions or calcium cyanamide.  Emulsifying and dispersing agents and substances to improve distribution on leaves, e.g. fatty acids, resins, wetting agents, glue, casein or alginates may also be incorporated.
Patent GB-1098422-A (GB)
Title: Subsonic and supersonic towed aerial target
Inventor: NORMAN ROBERT ISHAM
IPC: F41J9/10
Filed: 1965-07-20
Abstract: 1,098,422. Towed targets. HAYES INTERNATIONAL CORPORATION. July 20, 1965 No. 30849/65. Heading B7W. A towed aerial target adapted to be towed at speeds above Mach 1 comprises a tubular elongated body having an overall fineness ratio greater than seven (in the' embodiment seventeen), a horizontal pivot connection 19 for a towing cable T intermediate the ends of the body, horizontal stabilizing surfaces 13 and similar vertical surfaces located to create a centre of lift pressure at least one body diameter rearwardly of the centre of gravity 17 of the target, said horizontal surfaces 13 being cambered, e.g. by forming them in section substantially as a half diamond to create a nose-down pitching moment M which is substantially constant throughout subsonic and supersonic speed ranges of the target, said tow cable connection 19 being located substantially on the centre of gravity 17 of the target, thereby to provide a target which flies with its longitudinal axis substantially within + 5 degrees of any given flight path at all speeds above 150 knots I.A.S. The vertical surfaces are substantially diamond shape in section.
Patent GB-875656-A (GB)
Title: Improvements in or relating to cooking devices
IPC: F24C1/04
Filed: 1959-09-10
Abstract: 875,656. Combined electric or gas cookers; hot plate stoves. RITTER, H. Sept. 10, 1959 [Oct. 8, 1958], No. 30871/59. Class 126. In a gas-cooking stove 1, one burner 2 is removed, a plug being inserted in the gas outlet, and replaced by a tubular electric heating element 8 mounted in a bowl reflector 9 having an outwardly or downwardly bent edge 11 which engages in grooves 12 in saucepan supporting ribs 7. An electric supply cable 15 is led out of the back of the stove to a switch device 16 comprising a cable 17 for plugging into a power socket, a time switch 18, a switch 19 for changing to automatic control, a heat output regulator 20 and a thermostatic element 22 adapted to be placed over a vent in the lid of a saucepan and actuated by steam to cause full heat to be reduced to simmering heat.
Patent GB-359198-A (GB)
Title: Improvements in the construction of bobbins for use in connection with the groundropes of trawl nets
IPC: A01K75/06
Filed: 1930-10-15
Abstract: 359,198. Trawling-gear. BRAND, E. and CURZON, C., The Docks, LEWIS, T. C., Great North Road, both in Milford Haven, Pembrokeshire, and HILEY, B.A.E., 6, Stuart Avenue, Ealing, London. Oct. 15, 1930, No. 30878. [Class 48.] A ground rope bobbin comprises a concrete shell B and a metallic tubular centre A. The cross section of the shell along the axis of the tube is octagonal or round and the tube flanges a<1> are shaped to correspond. In a modified construction the concrete is solid. The centre A may comprise two tubes in alignment,
Patent GB-1363664-A (GB)
Title: Manufacture of sperical bearing shells
IPC: F16C33/10
Filed: 1971-07-01
Abstract: 1363664 Bearings N LAING 1 July 1971 [1 July 1970] 30900/71 Heading F2A [Also in Division B3] A concave bearing element is made by depositing particles of material on to a convex mould 1 dimensionally complementary to the required element and simultaneously cyclically moving the mould relative to the source of particles 7 so that the deposition is uniform. The mould may be continually rotated while the particles are sprayed from a nozzle which is cyclically oscillated in a plane passing through the centre of curvature of the mould. The mould may, prior to the deposition, be uniformly coated with a mould release agent. When the deposition is performed at high temperature the mould may be internally cooled, e.g. by liquid gas. The surface of the mould may also be cooled by blowing gas on to it. The deposition may be effected by plasma spraying, flame spraying, electroplating or chemical plating. Bearing elements may be formed having a thin surface layer of rhodium, nickel, platinum, gold, bearing bronze or chromium on a thick backing layer, e.g. of cast or low melting metal or synthetic resin. The convex mould may be provided with projections which form recesses or grooves (e.g. spiral grooves) in the element which facilitate hydrodynamic operation of the bearing.
Patent GB-723081-A (GB)
Title: Improvements in or relating to a process for the production of hydrogen cyanide
IPC: C01C3/02
Filed: 1952-12-05
Abstract: In the production of hydrogen cyanide by interacting gaseous ammonia, oxygen and methane over a platinum metal catalyst, preferably a platinum-rhodium alloy catalyst, at a temperature of 1,000 -1,260 DEG C. a ratio of 1.4 to 2.5, preferably 1.5, moles of methane per mole of ammonia and 1.0 to 1.5 moles of oxygen per mole of methane is employed.  When essentially pure methane or natural gas purified to a methane content of at least 96 per cent is employed, the optimum ratio of oxygen to methane is 1.04 to 1.1.  When natural gas containing between 80 and 96 per cent methane is employed the optimum ratio is 1.15 to 1.3.  The gaseous mixture may be preheated to a temperature of 300 to 350 DEG C. before passing over the catalyst. Specification 361,004 is referred to.
Patent GB-1114448-A (GB)
Title: Improvements in or relating to the production of electrical sheet or strip
Inventor: WELLS JOHN EDWARD
IPC: H01F1/16
Filed: 1965-07-20
Abstract: 1,114,448. Making electrical steel sheet; improving physical properties. STEEL CO. OF WALES Ltd. 14 Oct., 1966 [20 July, 1965], No. 30905/65. Headings B3A and B3V. A method of producing non-oriented electrical steel strip from low carbon mild steel with one or more of Mn, P, Si and Al as alloying elements, includes hot rolling an ingot into strip, cold rolling the strip to within 1-20% of final gauge, annealing the strip, and reducing it to final gauge in a stretcher levelling machine. The resulting strip is sheared to produce laminations for transformers, rotors, or stators either before or after an annealing step. The stretcher levelling machine may be installed in an annealing line if continuous inter-annealing is used. Suitable compositions for the strip are low carbon steel with up to 1À25% Mn and up to 0À50% P or iron alloys containing up to 3À5% Si, or up to 8% Al.
Patent GB-205365-A (GB)
Title: Improvements in and relating to shackles or couplings for colliery trams
IPC: F16G15/06
Filed: 1922-11-14
Abstract: 205,365. Thomas, W. Nov. 14, 1922. Couplings, non-automatic.-The shackle pin H is provided with a projection E at the end, which is housed within a recess D in the eye G of the shackle when the pin is withdrawn for uncoupling purposes. The other eye G<1> of the shackle has an internal circular recess B, midway of the depth of the hole, which communicates with both faces of the eye by means of slots A, C spaced about 180‹ apart, each slot communicating with one face only. The pin H is looked in the shackle by first passing the projection E on the pin through the slot C into the recess B, then revolving the pin through an angle until the projection E registers with the slot A through which it is passed. The pin H is then turned so that the projection E is non-coincident with the slot A.
Patent GB-192366-A (GB)
Title: Improvements in or relating to wicks
IPC: F23D3/00
Filed: 1922-11-14
Abstract: 192,366. Aladdin Industries, Ltd., (Assignees of Engh, W. B.). Jan. 27, 1922, [Convention date]. Wicks; wick-operating devices. - A tubular woven cotton lamp wick 1 is stiffened on its inner and outer surfaces by adherent linings of woven fabric 10 or paper 11. The wick-raising sleeve 4 is provided with upwardly-extending flexible arms 5 formed with holes 6 in which engage knob-like metal parts 7 having prongs 8 which extend through the wick and are bent so as to be guided by the outer surface of the inner wick-tube 3 of the burner. The linings may be provided only at the points where the wick raising mechanism is attached, but other sections may be coated with a stiffening substance such as an aqueous solution containing phenol or cresol and formaldehyde. The woven fabric lining may consist of a piece of cotton tape having on one side a watersoluble adhesive film. The tape is first formed into a cylinder over an arbor with the gummed side outwards, and the wick is pulled over the. tape cylinder whilst it is still on the arbor. The wick is then steamed and dried until the tape firmly adheres. The wick or a section thereof is then wrapped with gummed tape to form the outside covering, a more rigid seat for the metal parts 7 being obtained thereby. The tape is stated to prevent fraying of the wick tips, and also to prevent excessive oil evaporation owing to its relative impermeability. The Specification as open to inspection under Sect. 91 (3) (a) stated that the wick might be stiffened on one surface only. This statement does not appear in the Specification as accepted.
Patent GB-309371-A (GB)
Title: Improvements in reinforcing elements for the beads of automobile tyres
IPC: B60C15/04
Filed: 1928-10-27
Abstract: 309,371. Gore, T., and Dack, R. J. Oct. 27, 1928. Tyre attachments to rims. - A reinforcing- element for a tyre bead comprises a flat c.ore of high tensile strength served with wire in spaced convolutions. In the form shown in Figs. 1 and 2, a flat core 1 is wrapped with one or more windings 2 of wire which may be slightly flattened. Figs. 3 and 4 show a modification in which the core consists of parallel wires 1<a>, and the wrapping 2<a> is of flat ribbon form. The wires 1<a> may be held in spaced relation by crimping the wrapping-strip.
Patent GB-391710-A (GB)
Title: Improvements in and relating to machines for shearing metals
IPC: A43B21/06
Filed: 1932-11-04
Abstract: 391,710. Shearing. MASCHINENFABRIK SACK GES., D³sseldorf, Germany. Nov. 4, 1932, No. 31190. Convention date, Dec. 5, 1931. [Class 83 (iv).] In shearing- machines having movable cutter carriers, one cutter moving to clamp the work and the other then moving to shear, means are provided for lifting the work to be sheared from its support before it is subjected to pressure by the carrier of the upper cutter or by its holder. In the form shown in Fig. 1, the cutters a, d are carried by arms c, f linked at g and pivoted about the main driving-shaft b and a rack h operated by a pinion. A cam on the shaft b engages a roller t on a bar p whereby a lever m is turned to raise a plunger w, Fig. 3, to lift the work u from the guide-rollers v before shearing. In a modification, the plunger is lifted by hydraulic means controlled by the cam. In the form shown in Fig. 4, the cutters are carried by vertically-movable slides 2, 3 operated by toggle mechanism 4. Before the cutters operate, a lever m1 worked by a cam r1 and bar p1 raises the lower slide 3 to lift the work from the guide-rollers, a work-holder and the upper cutter 2 are then placed on the work, and the lower shearing-cutter is raised. A fluid-controlled dashpot may be arranged in the bar p1.
Patent GB-271348-A (GB)
Title: Improvements in fire screens
IPC: A47G5/04
Filed: 1926-12-10
Abstract: 271,348. Figgins, W. W. Dec. 10, 1926. Screens; blowers.-A fire-screen, serving also as a blower, comprises sheet-metal centre and side members a, b having beaded edges, the beading wire e serving also to form the hinged connections between them, and the centre member being provided with draught openings g adjacent the lower edge. The beaded edges of the centre member are on the opposite face of the screen to that occupied by the beads on the side wings, to enable the screen to be folded. A bay h in the upper edge of the centre member exposes a part c<1> of the bead wire to form a handle.