baber/WOPTO huggingface dataset:
Patent GB-686110-A (GB)
Title: A process for the diffusion of metals
Inventor: SAMUEL ROBERT LIONEL
IPC: C23C10/24
Filed: 1949-11-29
Abstract: A metal is heated in a fused bath consisting wholly or predominantly of a silicate, preferably water-soluble, a metal halide which forms complex salts and a diffusing metal, or alloy thereof, in powder form.  Chromium, molybdenum, tungsten, vanadium, aluminium or silicon may be diffused into iron, steel, nickel, cobalt, molybdenum, tungsten or alloys, thereof.  A halide, preferably the fluoride, of the diffusing metal may be used and fluosilicates and borosilicates may be added.  Sodium silicate may first be formed by fusing powdered silica and anhydrous sodium carbonate, chromium fluoride and potassium silicofluoride added and the mix heated to 1100 DEG C and stirred; pieces of steel may then be immersed for a few minutes to 4 hours in the mix at 950 DEG  to 1300 DEG C.
Patent GB-490448-A (GB)
Title: Improvements in and relating to regulating devices for spinning, twisting and similar machines
IPC: D01H13/10
Filed: 1936-11-10
Abstract: 490,448. Speed and drag control for spinning &c. machines; automatic control systems. SIEMENS-SCHUCKERTWERKE AKT. - GES. Nov. 10, 1936, No. 30724. Convention date, Oct. 2. [Class 120 (ii)] [Also in Group XXXV] The tension of the yarn in electrically driven spinning, twisting and like machines, in which the yarn is wound in cop form, is controlled by a template regulator effecting a variation in accordance with the effective diameter of the cop and constituting a coarse regulation and by a regulator controlled by the tension of the yarn andconstituting a fine regulation. The invention is particularly applicable to ring spinning-machines, but may be applied to machines wherein the twisting and winding is effected by the relative rotation of a flyer and the cop, the control being applied to the driving-motor or to the drag means. The template regulator may effect a variation in the basic speed. The fine regulation is effected by electric control means operating continuously or between limits. In a direct current drive for spinning-machines, the main driving-motor 1, Fig. 1, is provided with two field-windings 2, 3, of which 2 is controlled by the template regulator 11 and 3 by the tension regulator. The field-winding 3 is supplied from the winding 16 of a transformer 15 and a discharge valve 17, of which the potential of the grid is controlled through the circuits shown by a feeler 28, which is engaged by the yarn 19 and operates a valve screening the air current influencing the bridge 22 of a bolometer. In a three-phase drive, the brush-holders are operated by differential gear of which one part is controlled by the template regulator and the other by the tension regulator. In the arrangement shown in Fig. 4, one part of the differential gear 45 which operates the brushholders is controlled by a cord 6 of the template regulator, and the other by a motor 47 supplied through relays 54, 55 and limit contacts 57, 58 under control of the feeler 27.
Patent GB-1414901-A (GB)
Title: Manufacture of clear ice
IPC: F25C1/24
Filed: 1973-06-28
Abstract: 1414901 Producing clear ice GENERAL MOTORS CORP 28 June 1973 [17 July 1972] 30806/73 Heading F4H [Also in Divisions H1 F2 G1 and H2] A clear ice making machine for a domestic refrigerator comprises a tray and heater assembly 34, an ice cube grid 36, an ice storage bucket assembly 38, a weight sensing means 39 for bucket and ice, an ice harvesting mechanism 40, and a water fill system 42. Assembly 34 is a sheet metal double-walled construction filled with freon-filled urethane foam insulation 58; with a pair of resistance heating elements surrounding the inner receptacle 52. The water fill system includes a purified water inlet 104 supplying a receptacle, the level of water in the receptacle and in the inner receptacle 52 being controlled by a float valve. The ice cube grid 36 is comprised of a polypropylene housing 140 defining open bottom cavities 142 of inverted truncated pyramidal shape. A flexible filler 146 of silicone rubber fills the space between the cavities 142. The ice storage bucket assembly 38 includes a container 150 of polystyrene on a steel wire shelf 152. An upright bracket 158 contacts the weight sensing means 39. The means 39 in one mode reflects the presence of ice container 150 on shelf 152 and, in another mode, the presence of a full load of ice cubes within the container 150. The harvesting mechanism 40 comprises grid pivoting and twisting gears on one side of a gear mounting plate; and a drive compartment and a timer compartment on the other side. In operation of the machine, when purified water fills the cavities 142, for means blows cold air on to the top surface of the grid cavities,  causing ice to be formed. A heater is energized to heat the body of water in each cube cavity. Under the action of a time control, after a certain period of time, a drive motor is energized causing the grid 36 to rotate. The housing 50 includes a flange 300 journalling a stud 302 projecting from one corner of the grid. As the grid rotates, the grid engages a raised boss which halts the pivoting motion of the grid. The harvesting mechanism continues to drive the grid causing the end nearest the driving mechanism to continue rotation to warp the grid to release clear ice cubes 296 into container 38. The grid is returned to its original position. When the container 150 is full of ice, the sensing means 39 energizes the second heater. This added heat prevents ice forming in the grid from freezing all the way to the bottom of the receptacle.
Patent GB-1245388-A (GB)
Title: Motor vehicle having a windscreen assembly
IPC: B60J10/30
Filed: 1970-06-25
Abstract: 1,245,388. Windscreens. FORD MOTOR CO. Ltd. 25 June, 1970 [9 July, 1969], No. 30837/70. Heading B7J. A motor vehicle having a windscreen assembly comprises a windscreen engaging a groove 3 in a resilient windscreen seal 2 which has, on the side of the seal remote from the groove 3, another groove 4 engaging an inwardly extending flange 1 of a vehicle body windscreen opening, the flange 1 being formed by welding together two or three bodywork pressings, a number of substantially S-sectioned clips 6 distributed around the periphery of the windscreen opening, each clip 6 having a U-sectioned end portion 7 clipped over the flange 1, the other end portion 8 of the clip being substantially V-sectioned and a bead 5 on the seal 2 projecting between the U-section end portions 7 and the V-sectioned end portions 8 of the clips 6.
Patent GB-1435232-A (GB)
Title: Flying shears
IPC: B23D25/06
Filed: 1974-07-11
Abstract: 1435232 Flying shears EVG ENTWICKLUNGS-U VERWERTUNGS GmbH 11 July 1974 [21 Aug 1972] 30844/74 Heading B3W A flying shear comprises arms 5, 6 carrying blades 1 and 2 respectively at one end and being pivoted eccentrically on a shaft 15 with their pivots 13, 14 displaced by 180 degrees about the shaft at the other end. A pivoted link 8 connects the arms. A link 26 couples the arm 6 with a bell-crank 22, 23 carrying a roller 2X held against a cam 20 by a spring 25. The cam is mounted on, or otherwise rotated synchronously with, the shaft 15 which is driven by a worm gear (16, 17), Fig. 3 (not shown). The dimensions are so chosen that after 90 degrees rotation of the shaft 15 the cam-driven link 26 is moving the blade arms 5, 6 in the feed direction G at the same speed as the wire or strip to be sheared and the eccentrics 13, 14 cause the blades 1, 2 to shear. During the next 30 degrees, as the blades move apart they also move faster to facilitate ejection of the severed length.
Patent GB-1058346-A (GB)
Title: Process for preparing aromatic primary haloamines
IPC: C07C209/36
Filed: 1965-07-20
Abstract: Aromatic primary haloamines are obtained by hydrogenating the corresponding nitro compound at a temperature of from about 20 DEG to about 150 DEG  C. and a pressure between about atmospheric and about 500 p.s.i. in the presence of a catalytic amount of Pt supported on BaCO3 or SrCO3.  The concentration of Pt on the carrier can be between about 0.1 and about 20% by weight. The amount of catalyst employed may be between about 0.001% and about 2% by Pt based on the aromatic compound to be reduced. Aromatic haloamines which can be obtained by this process are haloanilines, including fluoroanilines, haloaminophenols, halobiphenyl amines, e.g. 4-fluoro-3-biphenylamine, alkyl haloanilines and haloamino phenyl carboxylic acids.  The reaction may be carried out in an inert solvent, specified solvents being hydrocarbons, lower aliphatic alcohols or the haloaromatic amine product. Examples are given in which o, m and p-chloroaniline, p-bromoaniline and 4-chloro-2-aminotoluene are prepared.
Patent GB-1402621-A (GB)
Title: Window sills
IPC: E06B1/70
Filed: 1972-07-01
Abstract: 1402621 Window sill R M AMBROSE 26 Feb 1973 [1 July 1972] 30928/72 Heading E1J A one-piece, plastics window sill has two mutually inclined parts 17, 19 forming respectively, in use, the outer and inner sills, and a plurality of fins 16 on the soffit side of the sill, the fins extending from the internal edge of the sill at least part of the way across the sill's width, and the internal edge 20 of the sill extending down to the lower edge of the fins 16. Further fins 15 may be provided.
Patent GB-438655-A (GB)
Title: Improved cellulose acetate textile materials and their manufacture
IPC: D06M11/05
Filed: 1934-02-12
Abstract: Spun yarns of cellulose acetate are subjected to a stretching operation in the presence of saturated or wet steam under pressure at a temperature above 100 DEG  C.  Suitable temperatures are 110, 120, 130 DEG  C. or more under the appropriate pressures to maintain the steam in the saturated or wet condition, e.g. 10, 20, 30 or more pounds per square inch.  The stretching operation may be carried out on the materials during the course of their travel from one point to another, e.g. a number of yarns may be stretched simultaneously while running from one creel of bobbins to another. A suitable apparatus for stretching the materials is described in Specification 438,584. According to the conditions of stretching, the products may be either such that the individual filamentary character of the yarns is preserved, or such that the individual filaments are fused together. Favourable conditions for avoiding fusion are obtained by causing the steam to impinge upon the materials immediately after their entry into the steam chamber. The stretched materials may be subjected to any desired after-treatments, e.g. treatments to cause shrinkage as described in Specification 389,823, or partial or substantially complete saponification.  Specifications 177,868, 179,234, 316,521, 318,468, [all in Class 2 (ii)], 340, 324, 340,325, 340,436, 340,437, 343,062, 370,430, 402,104, 402,105, 402,106, 403,106; 424,683, 424,752, 424,830, and 424,879, [all in Group IX], also are referred to.
Patent GB-969407-A (GB)
Title: Process for the production of alkali metal salts of organic cyanides
Inventor: HAHN HEINRICH
Filed: 1962-08-13
Abstract: Alkali metal cyanodithioformates or dialkali metal salts of 1,2-dicyano-1, 2-dimercaptoethene are prepared by the reaction of carbon disulphide with an alkali metal cyanide characterised by using as a solvent one or more aliphatic alicyclic, or aromatic aliphatic-ketones with 3-12 carbon atoms, which may be substituted by one or more hydroxyl groups, in the presence of water. Under mild conditions, e.g. temperatures in the range 15-40 degress and short reaction times, the reactants yield the alkali metal salts of cyano-dithioformic acid. In the temperature range 50-90 degrees and with longer reaction times the reaction proceeds a stage further, with elimination of sulphur to give the di-alkali metal salts of 1,2-dicyano-1, 2-dimercapto-ethene. The water content of the solvent can vary between 3-15%, the preferred range being 5-10%. In examples the preparation of the disodium and potassium salts of 1,2-dicyano-1, 2-dimercapto-ethene and of the mono sodium salt of cyano-dithio-formic acid are described using as solvents water with acetone, diacetone alcohol, methyl ethyl ketone, diethyl ketone, acetophenone and cyclohexanone. Other suitable ketones named include dipropyl ketone, dibutyl ketone, dicyclohexyl ketone, phenyl ethyl ketone, b ,b 1-dihydroxy-diethyl ketone and dihydroxy acetone. The sodium cyano-dithio formate reacts with tetraethyl ammonium hydroxide to give the quaternary salt of the acid. The disodium and potassium salts of 1,2-dicyano-1,2-dimercapto-ethene reacts with naphthoquinone to give 2,3-dicyano-1, 4-dithia-anthraquinone. The zinc salt of 1,2-dicyano-1, 2-dimercapto-ethene is obtained by reacting the di-sodium salt with an ammoniacal zinc chloride solution. Specification 857,383 is referred to.
Patent GB-209399-A (GB)
Title: Improvements in and relating to stencil-sheets for use in duplicating
IPC: B41N1/24
Filed: 1923-12-10
Abstract: 209,399. Campion, P. Jan. 4, 1923, [Convention date]. Stencil sheets.-In coated sheets adapted to be formed into stencils by pressure, the coating-composition includes collodion or celluloid in solution together with castor oil or an equivalent oil, stearic acid, and triacetin, butyl tartrate, or amyl tartrate.
Patent GB-505375-A (GB)
Title: Improvements in or relating to fluid pressure brakes
IPC: B64C25/44
Filed: 1937-11-11
Abstract: 505,375. Fluid - - pressure brakes. BENDIX AVIATION CORPORATION. Nov. 11, 1937, No. 31029. Convention date, Nov. 11, 1936. [Class 103 (i)] [Also in Group XXXIII] A fluid-pressure brake system, particularly for aeroplanes, comprises a manually operable control valve having a member subject to the pressure in the brake-operating cylinder or equivalent so that the resistance to movement of the valve varies in accordance with this pressure, a constricted relief passage being arranged to release fluid from the cylinder while the brake is applied, the fluid being replaced continuously from the source through the valve. The system may comprise a pair of independently controlled wheel-brakes. A pump 20 normally circulates liquid in a circuit comprising a reservoir 10, pipes 18, 22, 26 and a relief valve 24. A pipe 28 connects the delivery pipe 22 with a pair of valve devices 30 adapted to supply brake operating cylinders 70 and controlled by levers 64 arranged respectively for the right- and left-hands of a pilot or operator. Each device 30 comprises a piston valve 40 operated through a spring 62 by a sliding block 58 engaged by the lever 64 and subject to the opposing pressure in the cylinder 70 acting on a diaphragm 50 through the cylinder supply pipe 68. The valve is normally held by a spring 46 in the position shown in which the ports to which the pipes 28, 68 are connected are blanked. Each cylinder 70 is connected directly to the reservoir 10 by an exhaust pipe 72 having a restriction 74 whereby pulsations of the liquid are avoided. Each cylinder has a piston 82 connected by rod 86 to a piston 100 which forces liquid from a cylinder 98 to a cylinder 108 connected to the brake shoes 116. When the lever 64 is operated to apply the corresponding brake, the pipes 28, 68 are connected through the groove 42 in the valve 40 to supply pressure liquid to the cylinder 70 the pressure in which acting on the diaphragm 50 tends to close the valve and is transmitted to the hand lever so that the operator feels the pressure that is being applied. The brakes may be retained in the applied condition by closing valves 110. In the event of failure of the pump system, the pistons 82 may be directly operated by hand levers 96 which have a lostmotion connection 90 with the pistons. In a modification the cylinders 70, 98 are dispensed with, the pipes 68, 72 being directly connected to the cylinders 108.
Patent GB-433015-A (GB)
Title: Improvements in sheet metal uniform cases and other sheet metal cases of a like kind
IPC: B65D88/12
Filed: 1934-10-30
Abstract: 433,015. Boxes. WILKES, O. F., and WILKES, F. W. G., (trading as WILKES & SONS, T.), and JONES, C. W., Drayton Works, Graiseley Row, Wolverhampton. Oct. 30, 1934, No. 31070. [Class 18] A sheet-metal box comprises detachable sides, ends, and bottom which are joined together by right-angled metal strips E, Fig. 3, whose inturned edges e can slide underneath the outturned edges d of the sides, &c. The vertical strips pass through slots in the usual strengthening bead on which the lower edges of the lid flanges rest, and solid or hollow corner strengthening pieces of D-section are inserted in the bead at the corners. Extensions e<3> on the lower end of a vertical strip overlie an extension j<1> on the strip E connecting the bottom to the sides and are bent underneath the box, the corner being finally covered by a threesided corner-piece, with inset portions g<1>, Fig. 15, which lie against the sides and through which screws can pass to nuts soldered or welded to the interior of the box. Further extensions el, Fig. 2, on the upper ends of the vertical strips E lie over the upper edge of the box and are bent down under horizontal flanges c on the sides and ends. A detachable hinged lid is provided.
Patent GB-1024320-A (GB)
Title: Magnetohydrodynamic generators
IPC: H02B1/04
Filed: 1964-08-04
Abstract: 1,024,320. Generators operating by electromagnetic interaction with fluids. SIEMENSSCHUCKERTWERKE A.G. Aug. 4, 1964 [Aug. 2, 1963], No. 31086/64. Heading H2A. A magnetohydrodynamic generator has an annular duct which is surrounded by an A.C. excited winding 7 and yoke 9 to produce a longitudinal magnetic field H in the duct. The ionized working fluid is injected at 5 along a helical path to exhaust 6 and interacts with the magnetic field to produce a radial electric field E. The annular duct E has conductive walls 2, 3, 4 comprising water-cooled steel, which short circuit the electric field to give a radial current 1. Due to the Hall effect, this current I produces a circular Hall current which induces a voltage in winding 7 so that the device becomes a selfexcited generator. In a modification, the annular duct can lie inside the exciting winding, thus giving a longer plasma flow path, Fig. 3 (not shown). Three-phase current may be generated by using three single generators, one for each phase.
Patent GB-1033415-A (GB)
Title: Form cutting tools
Inventor: EVANS JOHN FREDERICK
IPC: B23B29/24
Filed: 1962-08-14
Abstract: 1,033,415. Lathe details. JOSEPH LUCUS (INDUSTRIES) Ltd. Oct. 24, 1963 [Aug. 14, 1962], No. 31104/62. Headings B3B and B3T. A tool for turning a stepped or profiled shaft comprises a slide 10, Figs. 1 and 4 (not shown), with undercut grooves 13a receiving cutters 18, screws 21 for adjusting the cutters and means 14, 15 for clamping them after adjustment. The edges of the groove 13a are overlapped by the clamping plates 14, which are secured by screws 15. An adjusting screw (not shown) engages a threaded hole 12 in the slide, which is recessed to receive a block 16 having narrow dovetail grooves 13b aligned with the grooves 13a and vertical bores housing plungers 20. These are moved by the screws 21 and have sloping ends transmitting the adjustment to slide-blocks 19 in the grooves 13b. Soft, non-brittle tungstencarbide packings 17 are located beneath the tungsten-carbide &c. cutters 18.
Patent GB-174750-A (GB)
Title: Improvements in or relating to springs for motor vehicles
IPC: F16F1/24
Filed: 1920-11-03
Abstract: 174,750. Shackleton, W., and Sheffield Simplex, Ltd. Nov. 3, 1920. Gaiters; semi-elliptic springs. - In a vehiclespring protecting-device comprising metal housings enclosing the points of attachment of the spring and acting as shackles for connecting the spring to the chassis, the housing completely encloses, or is combined with means that completely enclose, that part of the chassis on which the shackle is pivotally mounted. A tie-bolt 12 passing through one eye 10 of the spring and extending across the vehicle is enclosed in a tubular sleeve and fixed in a housing 11 over the mouth 17 of which a flexible gaiter or sleeve 28 is secured by a rubber or other band 29, the other end of the sleeve being similarly secured over the adjacent mouth of a central housing 117, 18 secured to the axle. A second sleeve 28 covers the rear half of the spring and is attached to a housing 24 pivoted to the chassis at 27. In a modified form, the rear end of the spring slides on a roller mounted in a rear housing depending. from the axle, the control housing forming a swivel bracket mounted on the chassis. Specification 174,751 is referred to.
Patent GB-446294-A (GB)
Title: Improvements in or relating to electrical energy supply and regulator systems
IPC: G05F1/52
Filed: 1934-10-31
Abstract: 446,294. Converting. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London.- (Assignees of Vance, A. W.; 109, North 5th Street, Camden, New Jersey, U.S.A.) Oct. 31, 1934, No. 31272. Convention date, Oct. 31, 1933. [Class 38 (ii)] [See also Group XL] An arrangement for supplying constant voltage from a varying source comprises an impedance device in shunt with the load and a thermionic valve connected between the source and the impedance device, the impedance of the valve being varied in accordance with the voltage across the impedance device. In the arrangement shown, the positive side of the full wave rectifier 1 is connected to the load 23 through the space discharge path of a power valve 29. In parallel with the load is a resistance 87 part of the potential across which is applied to a direct current amplifier 83. Across part of resistance 87 is connected a glow discharge tube 89 with series resistance 91. The voltage drop between points 92 and 94 on the resistance 87 is in opposition to the constant drop across the lamp 89 as regards the grid circuit of the valve 83, thus providing grid bias. The grid circuit of 83 is connected in respect of alternating currents across the whole supply circuit through condensers 119, 121 ; this eliminates hum components. Valve 83 is direct-coupled to valve 85 the anode of which is directly connected to the grid of the power-valve 29, the arrangement being such that increase in voltage across resistance 87 applies negative bias to the grid of 29 and increases the valve impedance, and conversely. Screen grid potentials for the D.C. amplifiers 83, 85 are obtained from resistances 105, 113. Other arrangements involve the use of batteries for obtaining correct bias voltages, Fig. 1 (not shown). The variable impedance valve 29 may be shunted across the supply leads instead of in series, Fig. 3 (not shown). Or the variable impedance or resistance 87 from which the D.C. amplifier derives its input may be in series with the supply, opposing voltages from part of the resistance and a neon lamp again providing the grid biassing system for the first D.C. amplifier valve. The Specification as open to inspection under Sect. 91 also describes an arrangement comprising a series resistance connected between the shunt impedance and the load, the cathode of the D.C. amplifier being connected to a variable tapping on the series resistance. This subject-matter does not appear in the Specification as accepted.
Patent GB-988297-A (GB)
Title: Combination pilot burner and flame detector unit
IPC: F23M11/04
Filed: 1963-08-08
Abstract: 988,297. Lighting burners; mounting flame detectors. VAPOR CORPORATION. Aug. 8, 1963 [May 23, 1963], No. 31296/63. Headings F4F and F4T. A combined pilot burner and flame detector unit comprises a flame detector 30 mounted on a hollow heat insulating block 31 on the end of a sighting tube 34 extending axially through a tubular gas nozzle 26 supplied with gas by a fitting 28. A double glass window 32A prevents hot gases from reaching the flame detector. Air may be passed through the mounting block, and into the gas nozzle, Fig. 3 (not shown). The pilot burner is ignited by a spark plug 29 and ignites a main gas or oil burner 11A. The flame detector responds to both the main and the pilot burners and the pilot burner is shut down after an initial flame proving period. The flame detector senses ultra violet radiation.