baber/WOPTO huggingface dataset:
Patent GB-396548-A (GB)
Title: Improvements in automatic control gear for intermittent operation of reversing electric motors
IPC: H02P7/00
Filed: 1932-07-16
Abstract: 396,548. Control of motors. BRAITHWAITE & SON, ENGINEERS, Ltd., I. and BANKS, W., Kendal, Westmorland. July 16, 1932, No. 20146. [Class 38 (iii).] Continuous reversals.-In automatic control gear of the kind described in Specification 261,477, [Class 38 (iii), Electric motor control systems &c.], for reversing a motor D driving a washing or other machine, comprising a rotary control drum A continuously rotated in one direction by a pilot motor A<2>, an electricallyoperated master contactor D<1> on which the whole of the breaking of the current takes place, and a master controller C, the drum A is geared to an auxiliary drum controller A<1>, by means of which the operating circuit is made and broken at predetermined intervals in order to provide running and rest periods of predetermined length. The rest periods are arranged to occur between reversals in the direction of rotation of the motor D, the ratio of running to rest periods being determined by a selector switch A<3> connected to the contact fingers of the drum A<1>. Specification 320,102, [Class 38 (ii), Electric currents, Converting &c.], also is referred to.
Patent GB-778099-A (GB)
Title: A milling machine for use as a copying shaper
IPC: B23Q35/10
Filed: 1955-07-12
Abstract: 778,099. Wood-working. SCHILS, P. J. H. July 12. 1955 [Aug. 17, 1954]. No. 20156/55. Class 145 [Also in- Group XXII] A planing and shaping machine comprises rollers 3, 4, for feeding the workpiece 16 together with a pattern 17 through the machine, there being a cutting tool 5 on a pivoted arm 8 at each side of the feeding path. The pattern bears against rollers 18 coaxial with the cutters. The pivoted arms carry motors 10 to drive the cutters and are drawn together by springs 14 anchored to a nut 13 adjustable along a screw 12. This adjustment enables the cutters to be offset as in Fig. 4 to cut workpieces having pointed ends.
Patent GB-1021400-A (GB)
Title: Polymer products suitable for use in the treatment of the hair and compositions containing them
IPC: C08F8/00
Filed: 1964-05-14
Abstract: A copolymer of maleic anhydride and an ethylenically unsaturate monomer in which the molar ratio of ethylenic monomer: anhydride is 1 : 1-0.7, is reacted with a polyamine having a primary or secondary amine group and one or more tertiary groups.  The monomer may be ethylene, vinyl methyl or ethyl ether, styrene, a halo-styrene or styrene-homologue. The polyamine may be <FORM:1021400/C3/1> where R1 is H or R2, R2 is a C1- 4 alkyl, R4 is a C2- 6 alkylene, R3 is R2 or -R4-N-(R2)2, where R2 and R4 are as before, e.g. N,N-di-(methyl or ethyl)-1,2-ethylenediamine; N,N-di - (methyl, ethyl or propyl) - 1,3 - propylene-diamine; N-propyl-N-methyl-1,3-propylenediamine; N,N - dimethyl - 1,4 - butylenediamine; or N,N - dimethyl - N1 - methyl (ethylene or propylene) diamine.  The reaction mixture may also contain a primary or secondary amine, e.g. butylamine or an alcohol which will react with the anhydride groups of the copolymer.  The reaction may be carried out in a solvent, e.g. acetone, dioxan or pyridine.  The products may be used in water or aqueous alcoholic solutions for treating human hair.ALSO:A composition for treating human hair comprises a solution of from 0.5-6% of a copolymer of maleic anhydride and an ethylenically unsaturated monomer in which the molar ratio of ethylenic monomer: anhydride is 1 : 1-0.7, and which has been reached with a polyamine having a primary or secondary amine group and one or more tertiary groups, dissolved in water or aqueous alcohol.
Patent GB-798628-A (GB)
Title: Improvements in or relating to charge storage pick-up tubes
Inventor: DAVIS GORDON PETER
IPC: H01J31/58
Filed: 1955-07-13
Abstract: 798,628. Cathode-ray pick-up tubes. ELECTRIC & MUSICAL INDUSTRIES, Ltd. July 4, 1956 [July 13, 1955], No. 20213/55. Class 39(1). A charge storage pick-up tube having a target electrode including a mosaic of photoemissive elements and a source of electrons for generating a beam which can be scanned over the target with a low velocity to stabilize the elements of the target at or near cathode potential is provided with means permitting electrons with relatively large transverse velocities to approach the target with the scanning beam and set up a space charge barrier in the vicinity of the scanning beam whereby secondary electrons emitted by scanning the target elements with the beam are substantially all returned thereto by the barrier. Preferably the selection of electrons with relatively large transverse velocities is done by an apertured electrode 4, Fig. 2, located in front of the gun, with a central aperture 5 passing electrons with low transverse velocities, i.e., up to about 2 volts and apertures 6 passing electrons with transverse velocities of the order of 10-40 volts. Electrons with transverse velocities between 2 and 10 volts which cause spreading of the scanning spot are suppressed by the solid portion of the electrode 4. The apertures 6 may be replaced by arcuate slits concentric with the central aperture 5. The suppression of secondary electrons by the space charge surrounding the beam is said to stabilize the tube under conditions of intense illumination. The beam is magnetically focused and scanned. In operation the electrode 4 and the preceding limiter electrode are maintained at 300 volts positive with respect to the cathode, the wall anode being at 200 volts positive.
Patent GB-1392533-A (GB)
Title: Spheroidal graphite cast iron of mechanical properties and the  method of its production
IPC: C22C37/04
Filed: 1972-05-02
Abstract: 1392533 Spheroidal graphite iron INSTYTUT ODLEWNICTWA 2 May 1972 [3 June 1971 ] 20417/72 Headings C7A and C7D Iron containing in percentage by weight:- Si 3.7 -4.4. Mn -0.6 P -0.12 Cu -0.3 Ni -0.3  Cr -0.2 balance iron, carbon and impurities is produced by adding a spheroidizing agent to an iron of  appropriate composition except for silicon,  followed by addition of silicon up to the desired level. Preferably the silicon addition amounts to 1.5-2.5%.
Patent GB-1027652-A (GB)
Title: Deposition of gold films
IPC: C23C18/44
Filed: 1964-05-15
Abstract: A continuous, bright gold film is applied to a surface, e.g. of borosilicate glass, plastic, ceramic, Ag, Cu, Fe, or anodised or lacquer coated Mg or Al, by contacting it with an aqueous solution containing a gold salt, such as the chloride or bromide or sodium gold thiosulphate, and gold complexer, such as an alkali metal or ammonium carbonate or hydroxide and/or an aliphatic amine containing 1 to 8C and 1 to 5N atoms, and with another aqueous solution containing hydrazine (as reducing agent), the solutions becoming mixed at the surface.  The gold solution is made by dissolving the gold salt e.g. the chloride or bromide in water and neutralising with a base such as NaOH, adding the complexer e.g. ethylenediamine or diethylenetriamine to water and neutralising with an acid such as HCl or HBr, and mixing the two solutions to obtain a solution containing more than 10-3 mol/l of gold salt and not more than 10-16 g/l of free aquo-coordinated gold ions.  The reducing solution may contain 0.1-6 mol/l of hydrazine and 0-2mol/l of an alkali metal hydroxide such as KOH. The gold and reducing solutions may be simultaneously sprayed on to the surface, e.g. using atomizers employing air or fluoro-or hydro-carbons, or flowed over, or the surface may be immersed in the gold solution to which is then added the reducing solution.
Patent GB-1115235-A (GB)
Title: New bis-thienyl-1,3,4-oxdiazole-derivatives, process for their manufacture, and use
IPC: C07D413/14
Filed: 1966-05-09
Abstract: Polymeric materials, e.g. polyesters (Example 7) are optically brightened with compounds of formula <FORM:1115235/C3/1> wherein A1 and A2, which may contain nonchromophoric monovalent substituents, are Ph, 2-benzoxazolyl or 1,3,4-oxdiazolyl, B is phenylene, furoylene or thienylene, and m, n are 1 or 2.ALSO:Optical brightening agents have the formula <FORM:1115235/C4-C5/1> wherein A1 and A2, which may contain non-chromophoric monovalent substituents, are Ph, 2-benzoxazolyl or 1,3,4-oxdiazolyl, B is phenylene, furoylene or thienylene, and m, n are 1 or 2.ALSO:The invention comprises compounds of formula <FORM:1115235/C2/1> wherein A1 and A2, which may contain non-chromophoric monovalent substituents, are Ph, 2-benzoxazolyl or 1,3,4-oxdiazolyl, B is phenylene, furoylene or thienylene, and m, n are 1 or 2.  These compounds are prepared by treatment with SOCl2 at an elevated temperature, of precursors containing a -CONHNH-CO- group corresponding to either (a) the oxdiazole ring outside the square brackets or (b) each oxdiazole ring in the desired product. The required starting materials are made by reacting the appropriate carboxylic acid halide with hydrazine or with the corresponding acylhydrazide.ALSO:Fibrous materials are optically brightened by treatment with an aq. suspension or solution of a compound of formula <FORM:1115235/D1-D2/1> wherein A1 and A2, which may contain non-chromophoric monovalent substituents, are Ph, 2 - benzoxazolyl or 1, 3, 4 - oxdiazolyl, B is phenylene, furolene or thienylene, and m, n are 1 or 2.  Anionic, cationic or non-ionic surface-active agents may be present.  The fibrous materials may be endless filaments, staple fibres, flocks, ropes, textile fibres, yarns, threads, fleeces, felts, cotton wool, flocked articles, woven, bonded or knitted textiles, papers, cardboards or paper compositions.
Patent GB-1139102-A (GB)
Title: Composite metal article and process for producing same
Inventor: WINTER JOSEPH
IPC: C22C21/00
Filed: 1966-05-09
Abstract: 1,139,102. Making composite sheets; jointing by rolling. OLIN MATHIESON CHEMICAL CORP. 9 May, 1966, No. 20460/66. Headings B3A and B3M. A method of producing a composite plate, having a copper base alloy clad with a dissimilar metal, comprises heating the core to between 300‹ and 1000‹ F., and rolling together the heated core and unheated cladding at a speed of at least 100 feet/min. and with a single reduction of 40-80%, the cladding and core contacting each other at the roll bite with an included angle of 5-22 degrees. The core can be clad on one or both sides, the metals being chemically cleaned and mechanically roughened before rolling, if desired. The cladding material can be a copper base alloy, dissimilar from the core, or an alloy of iron, lead, silver, nickel zinc tin, or aluminium. In an example, a 99À9% copper alloy core of 0À075 inch gauge was clad with a 75% copper- 25% nickel alloy of 0À030 inch gauge. After cleaning and abrading steps, the core was heated to 750‹ F. and rolled with the cold cladding alloy at a 70% reduction. The rolling speed was 150 feet/min. and the included angle between the core and cladding 18 degrees.
Patent GB-148525-A (GB)
Title: Improvements in or relating to the production of oscillations by high vacuum tubes having heated cathodes
IPC: H03B5/10
Filed: 1920-07-10
Abstract: 148,525. Ges. f³r Drahtlose Telegraphie. April 30, 1919, [Convention date]. Vacuum tubes.-In a valve for generating oscillations, the dimensions of the electrodes, for instance the width of the mesh of the grid, and the distance between the grid and anode, are so chosen that the resulting voltage .ratio " is such that oscillations are produced with a minimum of reactive coupling. The subject is treated mathematically, and equations for optimum values are given. The curves A, B show the relation between the " voltage ratio " a, plotted as ordinates, and k, the fraction of the voltage between the anode and cathode which is supplied to the grid by reactive coupling, plotted as abscissµ. If the areas bounded by curves A, B show respectively the conditions for the production of a fundamental and a parasite oscillation, a point P will be chosen for determining the constants, so that the main oscillation only is produced. The constant a is determined empirically.
Patent GB-1343186-A (GB)
Title: Wire feeding for automatic arc welding machines
IPC: B23K9/12
Filed: 1971-04-19
Abstract: 1343186 Welding by fusion MATSUSHITA ELECTRIC INDUSTRIAL CO Ltd 19 April 1971 [28 Jan 1970] 20611/71 Heading B3R In feeding a consumable arc-welding electrode wire 6, of aluminium or aluminium alloy, by a roller pair 1, 2, surface exfoliation of the wire is prevented by arranging for each of the rollers of said pair to have a wire engaging diameter which is at least fifty times that of the wire and at least 60 mm. The roller 2 may be free or gear driven from the driving roller 1.
Patent GB-1352347-A (GB)
Title: Stabilized film-forming polyolefin composition
IPC: C08K5/3475
Filed: 1971-04-19
Abstract: 1352347 Polyolefin compositions and paperlike films thereof UNION CARBIDE CORP 19 April 1971 [30 Jan 1970] 20723/71 Heading C3P Polyolefin compositions comprise components A, B, C and D below optionally with one or more of components E, F and G. (A) A polyolefin, e.g. high density polyethylene and/or polypropylene; preferred proportion: 45-85 wt. per cent of the composition; (B) A U.V. stabilizer comprising at least one organic compound capable of forming a sixmembered chelate ring through hydrogen bonding, and which is a solid or liquid which does not decompose or volatilize below 200‹ C.,  e.g. of formula wherein the various A's and B's, which may be the same or different are H or substituents (e.g. OH, Cl, But, n-octoxy); a is 1-9; and b is 1-8; preferred proportion: 0À2-2À0 wt. per cent; (C) An antistatic agent comprising at least one alkoxylated amine or amide which contains at least one saturated or unsaturated C 7 -C 22  hydrocarbon group optionally bearing one or more substituents (e.g. OH), and which does not volatilize or decompose below 200‹ C., e.g. N,N - bis - (2 - hydroxyethyl)- or N,N- bis - 3 - hydroxypropyl) - C 8 -C 22  alkylamines or -C 8 -C 22  fatty acid amides; and N-(3- dodecyloxy - 2 - hydroxypropyl) - ethanolamine; preferred proportion: 0À1-2À0 wt. per cent; (D) A thermal stabilizer comprising at least one sterically hindered phenol which does not volatilize or decompose below 200‹ C., e.g. octadecyl 3-(3,5-di-tert-butyl-4-hydroxyphenyl) propionate or tetrakis-[3-(3,5-di-tert-butyl-4- hydroxyphenyl) propionyloxymethyl] methane; preferred proportion: 0À02-1À0 wt. per cent; (E) A filler preferably having an average particle diameter of 0À1-15 microns, e.g. CaO, ZnO, MgCO 3 , CaSO 4 , MgSO 4 , PbSO 4 , TiO 2 , MgO, CaCO 3 , various silicas, silicates, silica-alumina or asbestos; preferred proportion: 5-45 wt. per cent; (F) A polymeric accommodation resin, e.g. a low density vinyl addition polymer or copolymer e.g. polyethylene or ethylene/vinyl acetate copolymer (many others are listed); preferred proportion 3-15 wt. per cent; (G) Unspecified flame retardants and colorants. The compositions may be formed into sheets or into paper-like films of 0À25-20 mils thickness which may be surface-treated by electrostatic discharge, flame treatment or oxidative chemical treatment.
Patent GB-221629-A (GB)
Title: Improvements in and relating to torsiometers
Filed: 1923-08-15
Abstract: 221,629. Denny, Sir A., and Edgecombe, F. T. Aug. 15, 1923. Dynamometers, rotary - transmission.-Relates to apparatus of the type comprising two sleeves mounted coaxially with the shaft the torsion on which is to be measured, one being a long sleeve fixed at one end to the shaft, the other free end being in spigot and faucet relation with the free end of the short sleeve, and indicating means to determine the relative angular motion of the sleeves, and consists in providing motionmagnifying gear for the indicating means and a lens or lenses rotatable with the shaft through which lens the indicating means is viewed. The. long and short sleeves 1, 3, Fig. 1, are split to be readily fixed to the shaft and are provided with arms 2 and 4 respectively. The arm 4 carries the pointer 6 and scale 5, either of which is movable relatively to the other. As shown, the scale is connected through gears 7, 8, Figs. 5 and 6, to a crank 9 connected to a lever 9<1> fulcrumed at 9<2> on the arm 2. A disc 11 connected to the sleeve 3 is provided with an aperture in axial register with the scale and pointer, the aperture being occupied by a lens 12 the focal length of which is the distance between the lens and the scale 6. A diaphragm 13 formed with a radial slot is also fixed to the disc 11. A stationary housing 14 surrounds the lens and indicating mechanism and is provided with a number of inspection apertures 15 arranged at suitable angular intervals. Lamps 16 serve to illuminate. the scale and pointer. Each half of the sleeve 1 is provided with two pockets for bearing pads spaced 90‹ apart, the pads being machined accurately to fit the spigot sleeve 3. At each face of the lens is arranged a wiper fixed to a rock shaft operated by a handle, the shaft being acted upon by springs so that the wipers are normally swung away from the lens face. By moving the shaft axially and rocking it the link surfaces may be cleaned.
Patent GB-979807-A (GB)
Title: Data processing system
IPC: G06F11/10
Filed: 1962-05-30
Abstract: 979, 807. Checking digital data. RADIO CORPORATION OF AMERICA. May 30, 1962 [May 31, 1961], No. 20913/62. Heading G4A. A circuit for generating a parity check for a data word comprises means responsive to the absence of one or more binary digits in the word to prevent the production of the check bit and means for generating a parity check bit for a group of binary digits included in the word. The arrangement is suitable for parity generation when a masking operation takes place. Parity checking. A 28-bit word comprising 27 data bits plus one parity bit is read out from a register (top of Fig. 12) is true and complement form D 1 -D 28 , I 1 -I 28  to two 28-wire buses to which are connected inverters producing outputs A 1 -A 27 , B 1 -B 27 , which are applied in threes to the first level, containing circuits 12-20, of a parity check circuit, Fig. 8. The B bits equal the D bits when data is present. Each circuit 12-20 (Fig. 2, not shown) comprises an arrangement of "none" gates, the outputs O, E of each circuit 12-20 taking the values O = 1, E = 0 when there are an odd number of "1"s in the three B input bits; O = 0, E = 1 when there are an even number of "1"s. If there is no information present on any or all of the inputs to a circuit 12-20 then both O and E are zero. The outputs O, E of the circuits 12-20 are applied to a second level of logic comprising further circuits 21-23 (Fig. 3, not shown) connected to a third level of logic comprising a circuit 24 (Fig. 4, not shown) having outputs H, L such that if the original 27- bit word had an even number of bits L = 1, H = 0 and if it had an odd number of bits L = 0, H = 1. The outputs H, L are compared with the parity bit Ap, Bp (which are mutual complements) of the input word in a circuit 25 (Fig. 5, not shown) to produce an output Pc if the parity is correct and an output Pu which may actuate an alarm or initiate a diagnostic routine, if the parity is incorrect. Masking and parity generation. In the example described, bits D 1 -D 3 , and D 19 -D 27  of a word D 1 -D 27  are masked, the remaining bits D 4 -D 18 being transmitted to a partial word register 124, Fig. 12. By combining appropriate intermediate outputs from the check circuit of Fig. 8 in a circuit 127 (Fig. 6, not shown), a true and complement parity bit ME, MO is generated for the masked digits D 1 -D 3 , D 19 - D 27 , the outputs ME, MO being applied together with the full word parity bit Ap, Bp to a circuit (Fig. 7, not shown) which generates a parity bit Gp for the partial word D 4 -D 18  whose digits are supplied via gates 125 (Fig. 9, not shown) controlled by a mask generator 120, to the register 124. The parity generation circuit is operative only when a signal Pc indicates that the parity check for the full word produced a correct output.
Patent GB-266224-A (GB)
Title: Improvements in waterproof coatings and damp courses for buildings and structures
IPC: D06N5/00
Filed: 1926-08-25
Abstract: 266,224. Forrest, C. N. Aug. 25, 1926. Waterproofing buildings and structures.-A reinforcement for a bituminous waterproof covering or damp-course for buildings and structures consists of a loosely-woven fabric impregnated with thin bitumen but with open meshes as shown in Fig. 3, so that it will readily coalesce with applied layers of bitumen. The fabric may be muslin, Osnaburg cloth, paper, or paper textiles, and the bitumen may be thinned with petroleum residue. Apparatus for impregnating the fabric is shown in Fig. 1. The fabric passes over a roller 4 to remove creases, thence between heated coating rollers 5, 6 and over a nozzle 12 where it receives a blast of hot air from a heater 13. The bitumen tanks 7, 8 are heated by coils 9. The fluxed bitumen is preferably prepared by heating an asphaltic petroleum residuum to from 400‹ F. to 550‹ F. and converting it by an air blast into a solid asphalt melting at about 300‹ F., which is then fluxed with an equal part of petroleum residuum having a flash point of about 400‹ F.; the finished bituminous material melts at 225‹ F. to 250‹ F.
Patent GB-938182-A (GB)
Title: Fluid expansion refrigeration method and apparatus
Inventor: GIFFORD WILLIAM ELLSWORTH
IPC: F25B9/00
Filed: 1960-06-15
Abstract: 938,182. Refrigerating. ARTHUR D. LITTLE Inc. June 15, 1960, No. 20992/60. Addition to 882,656. Class 29. In a modification of the process of the parent Specification, in which high pressure fluid in an expansible chamber is not allowed to do work on a piston but is released without previous rarefaction into the low pressure source, net refrigeration is stated to be obtained by working the hot end of the regenerator at a higher temperature than that which obtains in the high pressure source. The sources are connected cyclically to a cylinder having a displacer for transferring fluid through the regenerator. As shown, helium is compressed by compressor 192, admitted to a series of heatexchangers 154, 144, 162, 146, 164, 148 and 168 by valve 153 and liquefied by expansion at Joule-Thomson valve 172 into liquid collecting columns 174. Helium boiling off in the column at a low pressure cools the incoming high pressure gas in exchangers 168, 164, 162 and 154 before being recycled by the compressor. A heater 180 is provided. Heat exchangers 144, 146 and 148 are cooled by a working gas, which may be helium, and which undergoes the refrigeration cycle of the invention. With the displacer 116 lowered, the low pressure gas in chamber 111 is heated by connection with high pressure container 102 and transferred by upward movement of displacer 116 to chambers 126, 127 and 128 after cooling in regenerators 130, 132 and 134. When the displacer reaches its upper limit valve 110 is closed and valve 112 is opened, allowing the gas, cooled by expansion to cool the regenerators and heat-exchangers and return to the low pressure container 104 and chamber 111 as the displacer descends. The regenerators working above 50 K are filled with copper or bronze screening or perforated discs. Those working below 50 K are filled with lead balls. The displacer members 120, 121 and 122 are made of a resin impregnated fibrous material such as "Micarta" (Registered Trade Mark). In order to establish a stable temperature gradient in the regenerators the gas may enter them through supplementary regenerators which are filled with conductive plates or wire unable to support a temperature gradient and which may be connected with blocks of high thermal capacity (Figs. 11-13, not shown). The supplementary regenerators may be partially by-passed in one direction of gas flow but not in the other (Fig. 14, not shown). In order to make use of the space between the displacer and the walls of its containing cylinder for gas cooling, the heat capacity of the lower portions of the cylinder walls and/or the displacer may be increased by embedding lead rings or helices therein (Figs. 15, 16, not shown). In another form (Fig. 8, not shown), three regenerators are arranged within the bodies of three coaxial pistons acting as displacers.