baber/WOPTO huggingface dataset:
Patent GB-548558-A (GB)
Title: Printing of textile fabrics
IPC: D06P1/44
Filed: 1941-04-12
Abstract: 548,558. Emulsions. DOUGLAS, G. T., MOILLIET, J. L., TODD, W., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. April 12, 1941, No. 3360. [Class 1 (i)] [Also in Group IV] Pigmented water in lacquer emulsions for printing textile fabrics have as a solution of polyvinyl chloride in a volatile, substantially water-insoluble organic liquid with or without a plasticiser. Specified pigments are azo pigments, metal salts of nitroso-#-naphthol, phthalocyanines, water-insoluble vat dyes and inorganic pigments such as iron oxides, chrome yellows, titanium dioxide and lithopone. Specified organic liquids are cyclohexanone. methylcyclohexanone, ethylene dichloride, butyl and amyl acetates and mixtures of acetone with benzene, toluene, xylene or solvent naphtha, of cyclohexanone with solvent naphtha, butyl acetate or decahydronaphthalene, of amyl acetate with xylene, of solvent naphtha with ethyl, butyl or amyl acetate and of cyclohexanone with solvent naphtha and decahydronaphthalene. Specified plasticisers are tricresyl phosphate and dibutyl phthalate. Emulsifying agents or stabilisers such as barium oleate, calcium or aluminium stearate, lanoline, bentonite or calcium or barium hydroxide may also be present. The emulsions may also contain zinc oxide or calcium, strontium or barium carbonate. In examples, (1) an emulsion is obtained by stirring a solution of polyvinyl chloride in cyclohexanone into a mixture of a similar solution with an aqueous paste containing "Monolite" (Registered Trade Mark) fast scarlet RN and passing the mixture through a homogeniser; (2) an emulsion suitable for use in printing is obtained by adding a solution of ployvinyl chloride in a mixture of cyclohexanone, solvent naphtha and decahydronaphthalene to a mixture of a similar solution with an aqueous paste containing the dyestuff 3:3'-dichlorobenzidine, acetoacetanilide (2 mols.) and passing the mixture through a homogeniser; (3) a similar emulsion is obtained by adding an aqueous paste containing chlorinated copper phthalocyanine to a mixture of chalk with a solution of polyvinyl chloride in cyclohexanone and passing the mixture through a homogeniser; (4) a similar emulsion is obtained by adding an aqueous paste containing "Monolite" fast scarlet RN to a mixture of tricresyl phosphate with a solution of polyvinyl chloride in cyclohexanone and passing the mixture through a homogeniser. Specifications 397,711, [Group IV], 485,000, [Group V], and 523,090, [Group IV], are referred to.
Patent GB-991985-A (GB)
Title: Improvements in or relating to frequency dividers
Inventor: ILES GORDON DAVID
IPC: H03K25/00
Filed: 1963-01-28
Abstract: 991,985. Transistor pulse frequency dividing circuits. MARCONI CO. Ltd Nov. 5, 1963 [Jan. 28, 1963], No. 3361/63. Heading H3T. A pulse frequency divider comprises two capacitors 1, 2 and a rectifier diode 3 connected in series as shown across input terminals, a transistor 4 having its base-emitter circuit connected across the diode 3 and a bi-stable circuit comprising two reciprocally coupled transistors 5, 6 of opposite conductivity types, the bi-stable circuit being connected across the capacitor 2 and being triggered thereby when the staircase voltage waveform developed across the capacitor reaches a predetermined value to provide an output pulse at the collector of transistor 6. Each input pulse of amplitude +V places a predetermined value of charge on each of capacitors 1 and 2, the transistor 4 being rendered conductive at the termination of the pulse to charge capacitor 1 to the voltage level already established on capacitor 2. The voltage on capacitor 2 thus builds up by equal increments for each applied pulse until the voltage thereacross momentarily exceeds the value +V whereupon the bi-stable circuit 5, 6 is triggered and the capacitor 2 is discharged so that the cycle may repeat. Triggering of the bistable pulse develops a pulse of amplitude -V at the collector of transistor 6. In Fig. 3 (not shown) the circuit of Fig. 1 is followed by a similar but inverted circuit using transistors of the complementary conductivity type as the input thereto consists of pulses of amplitude -V. Fig. 4 (not shown) shows a circuit similar to that of Fig. 3, but in which a silicon diode is connected in series in the emitter circuits of each transistor 5 to prevent reverse-voltage breakdown and in which the collectors of the transistors 6 are returned to points on potential dividers connected across the supply to ensure positive triggering of the bi-stable circuits without the necessity for saturation in the transistors 4.
Patent GB-1372756-A (GB)
Title: Closed system neutron generator tube
IPC: G21K1/02
Filed: 1972-01-25
Abstract: 1372756 Radiological apparatus GES FUER KERNFORSCHUNG mbH 25 Jan 1972 [13 March 1971] 3371/72 Heading H5R [Also in Divisions G6 and H1] Neutron-therapy apparatus consists of a neutron source (see Division H1) enclosed in a shield 130 and mounted above a couch 138 in a semi-cardanic suspension. The neutrons are focused by cone 128 and a cylindrical or weakly conical collimation tube consisting of replaceable sections 129. The shield may be made of steel, or steel combined with fibreboard, concrete, titanium hydride, lithium hydride or zirconium hydride. The source may swivel about the orthogonal axes 132, 133. The couch is supported by telescopic arms 134 and may swivel about pivots 135.
Patent GB-774890-A (GB)
Title: Improvements in or relating to exothermic compositions and methods of recovering chromium therefrom
IPC: C22B34/32
Filed: 1955-02-04
Abstract: Complex chromium compounds are produced by a solid-phase reaction of alkali metal chromates in a non-oxidizing atmosphere with a substance selected from hydrogen, carbon, carbon monoxide and compounds having carbon chemically combined with hydrogen, e.g. sugars, starch or saturated or unsaturated aliphatic hydrocarbons.  Examples are given of the reaction of sodium chromate with hydrogen, alone or in the presence of sawdust, in a tubular reactor at a temperature between 315 DEG C. and 400 DEG C., and with sawdust or charcoal alone.  The product is leached with hot water to remove sodium hydroxide and other by-products.  In the products the chromium appears to be intermediate between a tri- and hexa-valent state.  Specifications 748,610 and 749,097 are referred to.
Patent GB-1496193-A (GB)
Title: Junction gated field effect transistors
IPC: H01L29/772
Filed: 1975-01-27
Abstract: 1496193 Semiconductor devices SONY CORP 27 Jan 1975 3471/75 Heading H1K A vertical junction-gated field effect transistor having a mesh-shaped gate region 16 preferably overlaid by a correspondingly shaped inset oxide layer 19 the windows in which are smaller in cross-section than those of the gate region 16 has two-part source regions 20, each including an upper heavily-doped first portion 20A extending down to less than the thickness of the inset oxide 19 and a lower second portion 20B protruding partly into the corresponding channel region and having a doping level intermediate between those of the first portion 20A and of the substrate 10, which latter constitutes the lightly-doped drain and channel regions. The portions 20B, 20A are preferably formed in successive diffusion or implantation steps using the selectively formed inset oxide 19 as a mask. Fig. 13 shows each source region as composed of two portions, but it is only essential that at least some of the source regions are so formed.
Patent GB-270407-A (GB)
Title: Improvements in or relating to the grading of leather or other sheet stock
IPC: G01B5/06
Filed: 1926-02-08
Abstract: 270,407. British United Shoe Machinery Co., Ltd., (United Shoe Machinery Corporation). Feb. 8, 1926. Linear-dimension gauges.- Apparatus for gauging " bends " of leather comprises a supporting table, end and side positioning gauges for the bend, and thickness gauging and gauge marking devices so arranged in set relationship that a definite part at about the middle of the length of the " bend " and adjacent the edge is presented to a gauge feeler which sets the marking device. The bend B is placed upon a table 1 and pushed inwardly so that the cut edge engages the back gauge plate 70 and the end engaging a right-hand gauging plate if a right-hand bend or a left-hand gauging plate if a left-hand bend. The lower end 32 of a spring lever 30 is pushed back by the bend causing the lever to swing about the fulcrum 31 to bring a dog 29 into engagement with a spring latch 25 normally holding a feeler 21 guided in the cross-head 4 in the highest position. The feeler is thus released and thrust down to engage the bend by a spring 24 acting through a lever 22. During this movement, the feeler acts through a rack on its edge and a pinion 19 to swing an arm 16 a pin on which co-operates with an abutment block 14 on a slide bar 13 moved by a spring 35. This movement through the medium of a link 12, segment lever 10 and pinion 9. rotates the stamping wheel 6 to present a suitable character to the bend. A treadle is now depressed to cause the gear 4 to slide axially into gear with a continuously rotating gear 47 and through gear 43, 41 to rotate the stamp cam shaft 40. The lifting cam 39 comprises a mutilated flange engaging a shoulder 61 on the stamp carriage 5. When one end of the flange passes out of engagement with the shoulder, a spring 62 acting through a lever 63 thrusts the carriage downward and forces the wheel 6 into engagement with the bend. The other end of the flange then engages the shoulder 61 to return the carriage 5 this also returning the feeler 21 and other parts to normal, the wheel 44 becoming automatically declutched from the wheel 47. Mechanism is provided to prevent the gear 44 from making more than one revolution each time the treadle is depressed. One face of the wheel 6 is provided with an annular row of shoulders which are engaged by a fixed projection 69 to lock the wheel in adjusted position.
Patent GB-139279-A (GB)
Title: A device enabling safety razor blades to be used for various other purposes besides shaving
IPC: B26B5/00
Filed: 1919-02-13
Abstract: 139,279. Kennedy, E. N. Feb. 13, 1919. Cutting-appliances.-A device such as a safetyrazor, penknife, corn cutter, cigar cutter, or for peeling potatoes or cutting out patterns and cutting furs, paper, &c. comprises a holder b formed of two thin plates secured together and shaped to leave a wedge-shaped space between them, within which a safety-razor blade f is adjustably secured by a set-screw j. The holder is hinged in a handle a formed from two spaced strips, one having a toothed edge h and the other being cut away adjacent the teeth. A shoulder l on the holder ensures the blade being positioned correctly, for use as a penknife. If the blade is adjusted with its edge flush with the edge of the holder, the portion exposed by a semicircular recess or slot k in the holder mav be used as a corn cutter. The handle has a circular hole m, in which a cigar end may be placed to be cut by the closing of the blade within the handle. The device is used as a safety razor with the holder enclosed in the handle and the edge of the blade adjusted relatively to the teeth h. By arranging the blade to protrude between the teeth, the device may be used to cut out patterns &c., the cheeks s at the end of the handle constituting a bearing- surface. A set-screw q is provided in the handle to secure the blade in its adjusted position. To strop the blade, it is arranged in the holder with its edge projecting equally on both sides.
Patent GB-726556-A (GB)
Title: Improvements relating to voltage control means
IPC: B03C3/68
Filed: 1953-02-07
Abstract: 726,556. Automatic control systems for electrostatic precipitators. HEINRICH, D. O. Feb. 7, 1953, No. 3521/53. Addition to 705,604. Class 38 (4). In an automatic voltage control system in which the electrode voltage of a precipitator is progressively raised until the electrode current rises above a predetermined value, at which point a current sensitive relay reverses a servomotor actuating the supply voltage regulator so as to reduce the voltage as in the patent Specification; the voltage is reduced immediately after the current increase, but is not raised again until after a time delay. The precipitator P is supplied via rectifier Re and high-voltage transformer T from the voltage regulator MCR actuated by a reversible A.C. motor M. Under normal conditions, relay R is energized from the A.C. supply and energizes a delay relay DR over contact r1 Relay DR energizes the motor M over contact dr to raise the voltage until the precipitator current operates relay OL, which is energized by a current transformer CT. Relay OL opens contacts ol so that relay R is de-energized, contact r1 changes over to de-energize relay DR and to energize the motor M to lower the voltage. Contact r2 shorts out the relay OL which resets contacts ol to re-energize relay R. This relay has a short time delay and during this delay the voltage continues to be lowered. Then the relay resets contacts r1 and r2 to reenergize the main delay relay DR and to put relay OL back into circuit. The voltage regulator now remains stationary and unless the relay OL is again operated to again reduce the voltage, the relay DR closes after the delay period, and the motor M once more raises the voltage and the cycle is repeated. The operation of the relay OL may be damped to ignore small disturbances, and the motor may be arranged to lower the voltage faster than it raises it.
Patent GB-1027771-A (GB)
Title: Improvements in or relating to rotary pneumatic motors
Inventor: BROOM HORACE SKEET
IPC: B24B55/00
Filed: 1962-01-30
Abstract: 1,027,771. Portable drills. BROOM & WADE Ltd. Jan. 22, 1963 [Jan. 30, 1962; Aug. 27, 1962], Nos. 3529/62 and 32877/62. Heading B3C. [Also in Division F1] In a rotary pneumatic-motor of the outwardly-sliding radialvane type having an output-shaft 31 which may carry a drill chuck or a grinding wheel, air-inlet ports 47 in a hollow sleeve 42 attached to the rotor 12 are controlled by a centrifugal governor and an overspeed safety device. The governor comprises a slidable sleeve 46 attached by a transverse pin 54 to the head 53 of a spring-loaded spindle 50, the pin passing through slots 55 in a sleeve 41 made integral with the rotor and supported by a ball-bearing 24. Sleeve 46 is moved by weights 44 which are pivotally attached to sleeve 42. The safety device comprises a slidable sleeve 56 which is made integral with a disc 57 and biased towards parts 47 by a compression spring 60 engaging with a coupler 59. Sleeve 56 is secured by three balls 63 lodged in recesses 62 in sleeve 42 and engaging with holes in sleeve 56. In operation, coupler 59 is displaced against the force of spring 60 by the centrifugal action of three balls 65 lodged in inclined recesses or notches 61 formed in the coupler. If the speed of the rotor becomes excessive, coupler 59 is displaced sufficiently to release balls 63 into pockets 66 formed in the coupler between recesses 61, whereby spring 60 moves the coupler and sleeve 56 towards the rotor to close ports 47. Air is delivered to said ports through a hose connected to a nipple 36 and a rotatable valve 39 in a handle member 35, the air being conducted from said ports to further ports 13, 14 in a casing 11 for the rotor. Exhaust air passing from casing 11 through ports 15 escapes to the atmosphere through apertures (not shown) in sleeve 34 or an end plate 19.
Patent GB-360292-A (GB)
Title: Improvements relating to the manufacture of safety glass
IPC: C09B7/02
Filed: 1931-02-04
Abstract: 360,292. Compound glass. DELLOYE, R., 102, Avenue de Villiers, Paris. Feb. 4, 1931, No. 3578. Convention date, May 13, 1930. [Class 140.] A process of cooling sheets of safety glass, the elements of which are cemented together in an autoclave heated by a gaseous fluid such as steam under pressure scting directly on the sheets, comprises the steps cf replacing the hot gaseous fluid by cold air and simultaneously injecting finely atomized water to reduce the temperature and cause fine streams of water to run down the surfaces of the sheets and then progressively reducing the pressure, for example by allowing air to escape, while allowing air to circulate in the autoclave to accelerate the evaporation of the water and the reduction of temperature. The air and water may be admitted together by injecting water through atomizers operated by con: pressed air, or separately, in which case the water may be atomized by helicoidal movement.
Patent GB-580763-A (GB)
Title: Improvements in or relating to kettles and like hollow-ware articles
IPC: A47J27/21
Filed: 1944-02-26
Abstract: 580,763. Electric kettles. WHITE, S. J. Feb. 26, 1944, No. 3588. [Class 39 (iii)] [Also in Group XVII] A kettle 1, with a handle 3 and handshield 8, may be electrically heated, the socket 4 being at the rear as illustrated, or' being in the handle 3 so that the heating-'element comes out when the handle is removed.
Patent GB-1159798-A (GB)
Title: An Assemblage of Series Coupled Electrolysis Cells.
IPC: H01R4/48
Filed: 1967-01-24
Abstract: 1,159,798. Electric couplings. KREBS & CIE. 24 Jan., 1967 [24 Jan., 1966], No. 3609/67. Heading H2E. [Also in Division C7] In an assemblage of electrolysis cells, each having a cathode assembly and removable anode assembly, and being coupled in series by anode-cathode coupling, the coupling comprises a flexible, electrically-conducting connection 1, one end of which is electrically connected to and rigidly fixed to the cathode of cell C 2 , e.g. by welding, while the other extremity carries a first contact which is resiliently urged into electrical connection with a second contact carried by the anode assembly of cell C 1 . In the form shown, the first and second contacts are urged together by a compression spring contained in housing 7 fixed to the body of cell C 1  by an insulatng mounting. Provision may be made for short circuiting a cell prior to disconnecting the anode-cathode coupling in order to open the cell for servicing.
Patent GB-489327-A (GB)
Title: Improvements in pressure fluid engine
IPC: E05F3/02
Filed: 1938-02-04
Abstract: 489,327. Door-operating appliances. NATIONAL PNEUMATIC CO. Feb. 4, 1938, No. 3641. Convention date, Feb. 4, 1937. [Class 65 (i)] A door-engine comprises a closed cylinder pivotally mounted by a bracket 3 and containing a piston 11 operated by differential air pressure ports 5, 18, the piston rod passing through a stuffing-box 7 to actuate the door. Cushioning means comprise a housing 16 in which the exhaust port 18 is formed and in which a tube 20 slides against a frictional spring 20<11>, the inner end of the tube being closed by a sliding tube 21 having a closed end with a leakage passage and lateral inlet ports 22. When the piston 11 strikes the closed end the tube 21 is pushed in closing the ports 22 and restricting the air flow to that through the leakage passage ; the tube 20 then slides slowly into the housing 16. On reversing the air supply connections, the tubular valve is immediately opened, and the tube 20 is gradually pushed open by the spring 28. The housing 16 may be unscrewed and applied to the port 5.
Patent GB-1435682-A (GB)
Title: Receptive copy sheets and process
IPC: C09J7/20
Filed: 1975-01-28
Abstract: 1435682 Copy sheet M SHARKEY 28 Jan 1975 3663/75 Heading D2B [Also in Division B2] A copy sheet suitable for use in pressuresensitive transfer copying systems comprises a flexible paper web having an upper imagereceptive surface coated or impregnated with a synthetic resinous material, which coating or impregnation is non-adhesive to the touch but becomes adhesive under the effects of applied imaging pressure, and an opposite surface which has a discontinuous application of a material which is adhesive to the touch, the arrangement being such that the upper surface has release properties with respect to the adhesive material whereby the sheet can be wound and unwound on a roll without damage thereto. The image receptive release coating may comprise a solid adhesive binder e.g. a tacky or adhesive wax and/or resinous elastomer, and at least 10% by wt. based on the binder of spheres of an inert synthetic organic polymer. The adhesive applied to the other side of the web may be in the form of spaced squares or stripes of double-sided adhesive tape, or may be printed on in the form of spaced squares, dots, stripes, or circles. The copy sheet may be used to receive images of dry-hectograph copy inks, carbon transfer compositions, and carbonless copy transfer compositions.
Patent GB-395059-A (GB)
Title: Hasp fastenings for jewel cases, purses, portfolios and such like
IPC: E05B65/50
Filed: 1932-02-09
Abstract: 395,059. Hasp fastenings; hinges. CHENEY, C. W., Factory Road, Soho, Birmingham. Feb. 9, 1932, No. 3774. [Classes 44 and 65 (ii).] A hasp fastening d which pivots about a flat cross-piece d<2> bearing in apertures c<3> in a casing c is held in either of its extreme positions by a spring tongue e<2> pressed out of a plate e mounted at the back of the attachment plate a. The various parts are preferably secured together by lugs on the casing c which are passed through apertures in the plates a, e and bent over, but the plates a, e may be secured together by separate lugs. The fastening may be secured to a jewel box &c. by split pins passing through holes in the attachment plate or by prongs struck up from either plate a or e.
Patent GB-1436185-A (GB)
Title: Silvercatalysts electro-magnetic non-destrictive testing by means of a rotatingfie
IPC: C22B11/00
Filed: 1973-01-25
Abstract: 1436185 Preparation of ethylene oxide D BRYCE-SMITH and E T BLUES 16 Jan 1974 [25 Jan 1973 19 Sept 1973] 3902/73 and 43995/73 Heading C2C [Also in Division Bl] Ethylene oxide is made by the oxidation of ethylene with an oxygen-containing gas in the presence of a supported silver catalyst made by depositing silver acetate on a carrier in the absence of an organic anhydride, decomposing the silver acetate at least partly to silver ketamide by heating in the presence of a non- reducing tertiary amine or amide and decomposing the silver ketenide to silver by continuing the heating. An example describes the oxidation using air as oxidant at atmospheric pressure, 205-232‹ C., a space velocity of 600 hr<SP>-1</SP> and a C 2 H 4 ; air ratio of 1 : 20 by volume. Ethylenedichloride may be added to increase the selectivity.
Patent GB-556312-A (GB)
Title: Improvements in or relating to slides for lathes and other machine tools
IPC: B23Q5/22
Filed: 1942-03-25
Abstract: 556,312. Bearings. STEINLE, L. C., and HANWELL, C. H. March 25, 1942, No. 3968. [Class 12 (i)] [Also in Group XXII] Slides for lathes and other machine tools having faces inclined at each side have in addition a rib with a pair of lateral guide surfaces, the then guides being situated at the vertices of a triangle, preferably equilateral. The arrangement is shown applied to the thread rolling device described in Specification 516,233, [Group XXII]. The slide a carrying the movable roll b has the usual jibs k and an addition a rib c engaging machine frame at f and g. Specification 22022/12, [Class 83 (iii)], also is referred to.