baber/WOPTO huggingface dataset:
Patent GB-794843-A (GB)
Title: Point-contact (crystal) semiconductor device
IPC: H01L21/00
Filed: 1955-10-28
Abstract: 794,843. Semi-conductor devices. STANDARD TELEPHONES & CABLES, Ltd. Oct. 28, 1955 [Nov. 4, 1954], No. 30893/55. Class 37. A point contact semi-conductor device comprises a conducting member closely surrounding the junction between the point contact and the semi-conductor body but insulated from both the point contact and the body. This member acts to reduce the interelectrode capacitance of the device and hence improves its high-frequency operation. In Fig. 1 the pointed wire 3, which is attached to Ni pin 2 by a pressuremoulded Pb or Pb alloy plug 5, contacts a Ge, Si or AISb alloy crystal 8 attached by welding, soldering or by a conductive cement, e.g. a polyethoxylene type cement containing Ag or AgSb alloy, to pin 6 which carries a similar plug 7. The two sub-assemblies are force-fitted into an unglazed non-porous tube 1 of glass, alumina, titania, or plastics, e.g. polymonochlorotrifluoroethylene and polytetranuoroethylene. An apertured disc 9 of Cu, CuSn alloy, Ni or Ag fits in slots in the tube 1. Wire 3 which may be of Pt, Wo, Ag, Pd, Au, Cu, Pt-Ru alloy, Ag-Sn alloy or phosphor bronze may be coated except at its tip by insulation, e.g. enamel and/or the disc 9 may be so coated around the aperture. Polyethoxylene resin 12 completes the assembly. Disc 9 may be earthed or maintained at such a potential as to accelerate or retard electrons injected into the crystal, being in the latter case earthed to A.C. by a capacitor. The disc may be foraminous, e.g. comprised of a screen of wires through one of the holes in which wire 3 passes. In a further alternative, Fig. 3, the disc is replaced by cone 19, the flange of which overlies the flanged end of the insulating tube, the pin carrying wire 20 being sealed through an insulating cap. In a further embodiment the pins bearing point contact and crystal respectively are mounted in glass, ceramic, polymonochlortrifluorethylene or polytetrafluorethylene plugs force-fitted in the ends of an earthed conductive tube formed at its centre with an inwardlyprojecting flange which closely surrounds the contact.
Patent GB-248872-A (GB)
Title: Improvements in or relating to condensing and/or cooling apparatus
IPC: F28D5/02
Filed: 1924-12-24
Abstract: 248,872. Beckett, E. H. Dec. 24, 1924. Surface condensers ; cooling liquids. - A condensing or cooling apparatus comprises a nest or nests of tubes centrally disposed in a partially or completely enclosed space from the edges of which nozzles g spray stream of cooling-fluid on currents of air are admitted through louvres e in the surrounding walls. The tubes are supported the tubes, thus inducing currents of air. The in vertical header boxes band extend along part of the major axis of a rectangular pond c. Additional sets of tubes may be disposed across the ends of, and at right angles to, the main set of tubes. The bottom of the pond slopes to a well in which the cooling-fluid falling from the tubes is collected for recirculation by a pump to the spray nozzles.
Patent GB-1039167-A (GB)
Title: Improved hydrocracking conversion catalyst and process
IPC: B01J29/22
Filed: 1963-08-06
Abstract: Hydrocarbons are hydrocracked in the presence of a catalyst comprising a Pt group metal, Fe, Co, Ni or Mo composited with a crystalline synthetic mordenite zeolite of formula 0.9\sB0.2 Me2/wO:Al2O:xSiO2, where Me is a metal or hydrogen containing cation, n is its valency, x=9 to 11, the zeolite being able to absorb a specified quantity of benzene under fixed conditions and having been base exchanged to Me2O less than 5%.  For example petroleum fractions of boiling range 400-900 DEG  F. are cracked at 500 DEG  to 800 DEG F., 300 to 5000 p.s.i. a hydrogen feed rate of 2000 to 20,000 SCF/B in the presence of a catalyst comprising between 0.1 and 2.0% of a platinum group metal composited with a crystalline zeolite as above.ALSO:A platinum group metal, Fe, Ni, Co or Mo is deposited on or base exchanged with a crystalline mordenite zeolite having in its anhydrous form the formula 0.9\sB0.2 Me2/nO:Al2O3:xSiO2 where Me is a metal or H, n = valency and x = 9, 10 or 11, and having an Na2O content below 5 weight per cent.  The reduction of the Na2O content may be achieved by using a base exchanger containing Co++, Ni++, Zn++, Cd++, Cn++ or alkaline earth metal ions.ALSO:A hydrogenation component consisting of a platinum group metal, Fe, Ni, Co or Mo deposited on or base exchanged with a crystalline mordenite zeolite having in its anhydrous form the formula 0.9 \sB 0.2 Me2/n O : Al2O3 : xSiO2 where Me is a metal or H, n = valency and x = 9, 10 or 11 and having the ability to adsorb at least 1.5 wt. per cent of benzene at 205 DEG F. and 0.5 atmosphere in the sodium form, the mordenite zeolite having been exchanged with a cation to reduce its Na2O content to less than 5 wt. per cent Pt and Pd are specified platinum group metals.  Base exchange may replace Na+ ions with Zn++, Co++, Ni++ and Cd++.
Patent GB-850534-A (GB)
Title: Reaction products of dextran-modified polyesters with urea-formaldehyde alcohol condensates and method of producing
Inventor: WENZELBERGER ELWOOD P
Filed: 1957-10-03
Abstract: A plastic mass is made by reacting together a dextran modified alkyd resin and an alcohol modified urea-formaldehyde condensate. The modified alkyd is made by reacting together (a) an aromatic or unsaturated polycarboxylic acid or anhydride e.g. phthalic, maleic, fumaric, chlormaleic, chlorfumaric, citraconic, methylethyl maleic, diethyl maleic, chloromethyl maleic or mesaconic acids (b) a polyhydric alcohol e.g. glycerol, pentaerythritol or ethylene-, trimethylene-, tetramethylene-, propylene- or dipropylene-glycol and (3) dextran, to produce a partially condensed alkyd.  The alcohol used to modify the urea-formaldehyde condensate is preferably a monohydric alcohol containing up to 10 carbon atoms.  The modified alkyd and urea-formaldehyde condensate are reacted together by heating, e.g. in a W.P. mixer, to produce a powder or a rubbery mass which may be formed into sheet or film or reaction may be effected on a substrate e.g. paper, leather textiles or metal foil to produce flexible coatings.  Reaction may be effected in the presence of natural resins, ester gums, oil soluble phenol-formaldehyde condensates or maleic anhydride-rosin condensates; plasticizers e.g. butyl phthalate, tricresyl phosphate, ethyl citrate, sulphonamide resins or, polyalcohol/adipic or sebacic acid condensates, or blown or oxidised castor oil; candelilla, carnauba, paraffin or montan wax; aluminium, calcium or zinc stearates or palmitates; pigments or fillers e.g. wood flour, cork, asbestos or metallic powders; starch, casein or gums.  The substances may be reacted in aqueous dispersion and in this case there may be added dispersing or wetting agent e.g. triethanolamine oleate or ricinoleate, sulphated alcohols, sulphonated ethers or sulphonated amides or protective colloids e.g. carboxymethyl dextran.  Before making the dispersion, the condensates may be conditioned by treatment with a softening agent e.g. toluene. Example (2) describes an aqueous dispersion for use as a protective coating comprising a reaction product of dextran modified phthalic anhydride-ethylene glycol resin and a butylated urea-formaldehyde condensate, carboxymethyl dextran, triethanolamine oleate, ammonium hydroxide and water.
Patent GB-654134-A (GB)
Title: Improvements in or relating to telephone or like systems
Inventor: HOPLEY HORACE EDWARD
IPC: H04Q1/24
Filed: 1948-12-01
Abstract: 654,134. Automatic exchange systems. AUTOMATIC TELEPHONE & ELECTRIC CO., Ltd. Dec. 1, 1948, No. 31108. [Class 40 (iv)] Automatic routining apparatus comprises means for successively monitoring or seizing and guarding against normal seizure a plurality of devices to be tested a predetermined time before testing to provide time for busy devices which are being monitored to become idle. Operation of start key KS takes into use the access control equipment ACE which momentarily energizes magnet PDM to advance primary distributer wipers PD to position 2 to extend control leads to the vertical and rotary magnets VM, RM of access selector AS1 to set its wipers into position 1/1. In a similar manner as wipers PD move over positions 3-49, all the other access selectors AS2-48 are set to position 1/1. Meanwhile, wiper PD1 in positions 2-9 operates monitoring relays EA-EE and EF-EH (not shown), the righthand windings of which are then connected over wipers BA1-4, BB1 and BB2-4 (not shown) to the advance seizing leads SL1-5 and SL6-8 (not shown), extending to access selectors AS1-8 and so to the private leads of the group selectors under test. As the PD wipers move from the energizing contacts, the left-hand windings of monitoring relays EA-EH release. The monitoring relays associated with idle group selectors release to earth the related private leads to prevent seizure of the group selectors from another source, while the monitoring relays associated with busy group selectors remain operated until the selectors become idle. Operation of the last monitoring relay EH (Fig. 2, not shown), energizes CB over wiper PD3 to open the original operating circuits of all the monitoring relays, CB releasing when the PD wipers reach position 50, CA then pulling up and locking until key KS is restored. When the PD wipers reach position 2 for the second time, relay MA pulls up to disconnect the advance seizing earth from the private lead of the group selector associated with position 1/1 of AS1, so that this selector is released and then seized by the routine test unit RTU for testing in known manner. Access selector AS1 is then caused to step to position 1/2 and the test unit RTU earths lead TFL to operate relay TF, which reoperates the first monitoring relay EA and causes the access control equipment ACE to step the PD wipers to position 3. TF also operates BAM to advance the BA wipers to position 2, whereby EA is connected to the ninth group selector immediately after the first has been tested, the process continuing with each group selector being monitored eight steps before it is tested.
Patent GB-341419-A (GB)
Title: Improved process for printing acetate silk or materials containing a cellulose ether or ester
IPC: D06P3/40
Filed: 1929-10-14
Abstract: Cellulose esters or ethers, dyeing; printing.-Acetate silk or material made of or containing cellulose esters or ethers is printed with a sulphonic acid of an a -aminoanthraquinone and steamed.  In an example the goods are printed a pure blue colour with an aqueous preparation containing gum arabic or British gum thickening and a paste of the sodium salt of the sulphonic acid of 1-methylamino-4-benzylaminoanthraquinone (c.f Specification 282,853, [Class 2 (iii), Dyes &c.], obtained by fine grinding in an aqueous dispersing medium such as sulphite cellulose liquor, and the goods so printed are dried, steamed and washed.  Other specified colouring matters are the 1-(41-acetylamino) phenylamino-4-amino-3-sulphonic acid, 1-phenylamino - 4 - amino - 3 - sulphonic acid, 1 : 5-diamino-4 : 8-dioxy-3-sulphonic acid, 1 : 5-dimethylamino-4 : 8-dioxy - 3 - sulphonic acid, 1-(41-methyl-31-sulpho)-phenylamino-4-methylamino-, 1-(41-methyl-31-sulpho) phenyl-4-amino - 3 - methyl-, 1 : 4-(41 : 411-dimethyl-31 : 311-disulpho) diphenyl-amino-, 1-amino-4-oxy-5-sulphonic acid, and 1-amino-5-sulphonic acid derivatives of anthra  quinone. The Specification as open to inspection under Sect. 91 (3) (a) comprises also the use of aminoanthraquinonesulphonic acids in general.  This subject-matter does not appear in the Specification as accepted.  1-(41-Methyl-31 - sulpho) phenylamino - 4 - methyl-aminoanthraquinone is obtained by sulphonation of the condensation product from 1-bromo-4-methylaminoanthraquinone and p-toluidine. 1-(41-Methyl-31-sulpho) phenylamino-4-amino-3-methylanthraquinone is obtained by sulphonation of the condensation product from 1-bromo-3-methyl-4-aminoanthraquinone and p-toluidine. 1-Amino-4-oxyanthraquinone-5-sulphonic acid is obtained by treating 1-nitroanthraquinone-8-sulphonic acid with methyl alcoholic potash to obtain 1-methoxyanthraquinone-8-sulphonic acid, nitrating this compound, saponifying the methoxy group and reducing the nitro group.
Patent GB-1156172-A (GB)
Title: Monoazo Dyes Containing a Vinylsulphone Group
Inventor: STRALEY JAMES MADISON
IPC: C09B62/51
Filed: 1966-07-12
Abstract: 1,156,172. N - Vinylsulphonylethyl - anilines. EASTMAN KODAK CO. 12 July, 1966 [12 July, 1965], No. 31243/66. Addition to 1,156,173. Heading C2C. [Also in Division C4] Compounds of the formula wherein R 1  is phenyl or o- or m-tolyl and R 2  is H, ethyl or #-hydroxyethyl are obtained by reacting an amine with divinyl sulphone. Examples are given for the production of the compounds.
Patent GB-1279405-A (GB)
Title: Weatherproof closure member
Inventor: KENNEDY JAMES CHRISTOPHER
IPC: E06B3/70
Filed: 1968-06-29
Abstract: 1279405 Laminates TRANSTEC ENG CO Ltd 27 June 1969 [29 June 1968] 31206/68 Heading B5N [Also in Divisions B7 and E1] A weatherproof closure member comprises a sandwich 2 having outer layers 4, 6 of sheet metal with a cellular filling 8 of metal bonded to the outer layers by an adhesive. Edging 10 includes a first channel 12 gripping the edges of the sandwich and a second channel 14 at right-angles to channel 12. Sealing strip 16 in the second channel provides a seal between the closure member and its surround. In the embodiment described the filling is of aluminium or aluminium foil in the form of a honeycomb matrix and the outer sheets are of aluminium or aluminium alloy sheet.
Patent GB-998704-A (GB)
Title: A yellow pigment of the anthraquinone series
Inventor: GRASER FRITZ
IPC: C08K5/46
Filed: 1963-08-09
Abstract: In examples, the yellow pigment of the formula <FORM:0998704/C3/1> is (2) ground with nitrocellulose, dibutyl phthalate and a mixture of ethyl alcohol and ethyl glycol to yield a yellow printing ink; (3) ground with coconut oil alkyd resin, ureaformaldehyde resin, xylene and butanol to give a yellow baking lacquer; (4) mixed with polyvinyl chloride, diisooctyl phthalate and titanium dioxide to yield a yellow polyvinyl chloride material and (5) ground with paraffin-free drying unsaturated polyester resin, monostyrene, cyclohexenone peroxide paste, cobalt naphthenate in white spirit and silicone oil in xylene to yield a yellow waterproof lacquer. The pigment may also be incorporated in polyurethane fibres. Specification 326,487 is referred to.ALSO:The dye of the formula <FORM:0998704/C4-C5/1> is purified by sublimation, by treatment with hot nitrobenzene or dimethylformamide or by precipitating the dye sulphate from a sulphuric acid solution of the dye by adding water and converting the sulphate into the dye. A pure form of the dye is made using 1 :5-diaminoanthraquinone which has been purified by crystallization, sublimation or via its sulphate. The dye may be brought into pigment form by grinding or acid-pasting.  In an Example (1) the above dye purified by sublimation is ground with alumina trihydrate and linseed oil varnish to give a reddish-yellow printing ink.  Specification 326,487 is referred to.
Patent GB-697029-A (GB)
Title: Improvements in and relating to metal containers
IPC: B65D41/08
Filed: 1950-12-28
Abstract: 697,029. Metal casks with non-corrosive linings; bungs and bushes. MANUFACTURES DE CAOUTCHOUC INDUSTRIEL P. LACOLLONGE SOC. ANON., AND USINES D'EMBALLAGES, VAN BEER. Dec. 28, 1950 [April 13, 1950; July 17, 1950], No. 31495/50. Class 21 A metal container with a flanged filling aperture is provided with a corrosion resistant lining having an aperture registering with and smaller than the filling aperture; the annular border of the lining surrounding its aperture being pulled over the periphery of the filling aperture, and clamped thereto by a corrosion resistant ring screwed into the flange of the filling aperture. Fig. 1 shows a metal container 11 having a non-corrosive (e.g. rubber) lining 12 with a bunghole into which is fitted the centering ring 14 of a flange 13 whose rim 15 is welded to the container; the periphery of the bunghole being swaged outwardly to engage a groove in the centering ring of the flange 13 which groove is rolled or pressed over to grip the container wall. The non-corrosive lining is stretched over the interior rim of the flange and clamped by a non-corrosive lining ring 17 (which may be ridged on its face) screwed into position within the flange with a finer thread than that externally securing the closure cap 18, which has a non-corrosive sealing disc 19 separated from the cap interior by an antifriction disc 20. In a modification, Fig. 2 (not shown), the periphery of the bunghole is not outwardly swaged but engages a lateral groove in the bunghole flange. The closure cap may be secured by a bayonet joint.
Patent GB-287026-A (GB)
Title: Improvements in and relating to shoes, slippers and the like and boxes or containers for the same
IPC: A43B3/30
Filed: 1927-11-23
Abstract: 287,026. Dorzbacher, A., (Schneider, J, & C. A.). Nov. 23, 1927. Fancy-shaped drawer-and-shell boxes; lids.-A box or case for a shoe &c. in the form of a mouse &c. is shaped or constructed in imitation of a trap. As shown the shoe s is supported in a drawer b slidable inside the shell a and the drawer is held withdrawn from the shell by the lid a<1> which engages behind projections b<1> on the drawer; when the lid is disengaged from the drawer elastic strips c return the drawer within the shell while elastic strips c<1> may be used to close the lid automatically. The drawer is withdrawn by a tab d.
Patent GB-226670-A (GB)
Title: Improvements in vacuum brakes for vehicles
IPC: B60T13/24
Filed: 1923-12-15
Abstract: 226,670. Dewandre, A. Dec. 15, 1923. Preventing stopping of engine when actuating auxiliary suction apparatus.-In a vehicle driven by an internal-combustion engine and utilizing the engine suction to apply the brakes, the communication of the brake cylinder 3 with the atmosphere and the induction pipe 1 is controlled by spring-pressed valves 8, 9 under the control of a pivoted forked member 10 connected by Bowden mechanism 12 to the operating-pedal 13, which is connected to the arm 6 on the brake shaft through a lost motion device 14, to the two parts of which are connected the sheath and cable of the Bowden mechanism. A reservoir fitted with a non-return valve may be interposed between the valve 8 and the pipe 1 to ensure uniformity of the partial vacuum in the cylinder 3 and to permit application of the brakes when the engine is not running.
Patent GB-886298-A (GB)
Title: Improvements in or relating to circuit arrangements for changing the tuning of a resonant circuit
IPC: H03J3/00
Filed: 1960-09-14
Abstract: 886,298. Radio receiver switch tuning arrangements. PHILIPS ELECTRICAL INDUSTRIES Ltd. Sept. 14, 1960 [Sept. 17, 1959], No. 31674/60. Classes 40(5) and 40(6). In a circuit for changing the tuning of a resonant circuit K in which a diode 6 is rendered conductive to connect a capacitor 1 across the circuit K, another diode 8 isolates the internal capacity of the control cable 4, 5 from capacitor 1 and therefore from the resonant circuit. A control potential 3 may be applied by switch 10 to a cable 4, 5 to tune circuit K to a number of pre-selected frequencies. The diodes used may be of the tunnel or pnpn type to reduce the power required for control.
Patent GB-982139-A (GB)
Title: Improvements in or relating to a door closer
IPC: E05F3/12
Filed: 1962-08-17
Abstract: 982,139. Door closers. SOC. D'ETUDES VERRIERES APPLIQUEES. Aug. 17, 1962 [Aug. 28, 1961], No. 31678/62. Addition to 897,848. Heading E2M. [Also in Divisions F2 and G1] In a door closer as claimed in the parent Specification means are provided for compensating for the effect of temperature changes on the speed of closing of the door due to changes in the viscosity of the damping fluid. During door closing movement the piston 3 forces damping fluid out of the cylinder 1 and through a passage restricted by a tapered needle valve 8 the valve rod 9 of which is urged by the fluid pressure into contact with the end 10a of a push rod. The push rod comprises two cylindrical parts 10a, 10b of different diameters and is inserted in a correspondingly shaped bore in a compensator 11 having a flange 12 bearing against the open end of a tubular support 13. The position of this support, and hence of the tapered needle 8, can be adjusted by means of a conical-ended screw 15. The compensator 11 is made of a material, preferably a plastic, having a very high coefficient of expansion compared with the other parts of the apparatus, and is arranged so that at a mean ambient temperature, e.g. 20‹C., the push rod makes contact with the compensator at both the surfaces P1 and P2. If the temperature rises by a certain amount the compensator expands and contact ceases at the surface P1, so that the push rod moves to the left under the expansion of the length Clof the compensator and thereby reduces the cross-section of the flow passage around the valve. If, on the other hand, the temperature falls below the mean by the same amount, contact ceases at the surface P2 so that the push rod is moved to the right by the contraction of the length C2 of the compensator, and the valve is thereby opened to a correspondingly greater extent. The compensator thus provides a differential correction which allows for the fact that the rate of change of the viscosity of an oil decreases as the temperature rises.
Patent GB-1455347-A (GB)
Title: Non-impact printer
IPC: G03G15/05
Filed: 1974-07-17
Abstract: 1455347 Selective printing ING C OLIVETTI & C SpA 17 July 1974 [28 Aug 1973] 31687/74 Heading B6F A printer comprises a transparent belt 11 having a dielectric surface which surface contacts a photoconductive coating of roller 23. A potential 43 applied across the belt 11, when it is exposed to images of characters 31, produces a latent image on the belt 11. This image is developed by tones applied at station 47, transferred to the paper 13 by pressure or corona discharge and fixed by heated platen 55. Characters 31 are produced by rotating mask 33 and lens 35. The dielectric layer of the belt 11 may be polyethylene terephthalate and the belt 11 may also have a layer of conductive polyethylene. A typewriter incorporating this system may have a display 17 to indicate the latent images on the belt 11 and the developed images on the belt 11 may be located so as to be visible.