baber/WOPTO huggingface dataset:
Patent GB-916953-A (GB)
Title: Gold-silicon bond
IPC: H01L21/60
Filed: 1961-02-02
Abstract: 916,953. Semi-conductor devices. PACIFIC SEMICONDUCTORS Inc. Feb. 2, 1961 [April 25, 1960], No. 3992/61. Class 37. A broad area low resistance contact to a Si semi-conductor body is produced by heating the body in pressure contact with Au and Ni to a temperature between the lowest melting-point of the ternary Au-Ni-Si system and the melting- point of Si. As shown, Fig. 1, a Ni-clad Mo disc 20 is brazed to a Cu stud 15 with the aid of a thin wafer 25 of Ag-Cu-P by being heated at 700 C. for 2-3 minutes. A Si wafer 10, having an N-P-N " comb " structure, is placed on Ni-clad disc 20 with an Au foil 30 between them and a weighted quartz flat 32 on top of the Si wafer. An axial recess 16 in stud 15, which in operation provides access for cooling water, is placed over a carbon heating element 42, Fig. 4, connected in series with resistance heating elements 40, 41 in a bell-jar 52, and the assembly for is heated to a temperature between 400 C. and 475 C., preferably 425 C., 30 seconds in a vacuum of 10<SP>-4</SP> mm. Hg, to produce a molten Au-Ni-Si alloy zone. The heating is discontinued and the assembly is quenched with He to reduce the temperature from 425 to 200 C. in about 3 minutes, after which the cooling is completed in open air, room temperature being attained in about 10 minutes. In an alternative arrangement, Fig. 7, a plurality of assemblies to be alloyed are placed in recesses in a boat 67 in a furnace 60, a predetermined pressure being exerted by the flexure of a bi-metallic strip 72, which acts on a quartz flat 70 common to all the assemblies, at the alloying temperature. Forming gas (15% H 2 : 85% N 2 ) or A is flowed through the furnace, or a vacuum is maintained therein, while the temperature is kept at 400-550 C., preferably 500 C., for 5 minutes, by resistance heating element 65. The boat is then maintained at 200 C. for 15 minutes, the gas flow being continued, after which the assemblies are removed from the furnace. Interdigitated base and emitter electrodes (not shown) are secured to the upper surface of wafer 10. The Ni content of the alloy should be from 0.5 to 10% by weight relative to the Au content, and may alternatively be supplied by plating, from a Ni foil, or in an Au-Ni amalgam. The invention is applicable to the formation of contacts to Si rectifiers, photo-cells, point contact devices &c.
Patent GB-1153695-A (GB)
Title: 2,2-Dichlorovinylphosphoric Acid Ester Diamides
Inventor: SIRRENBERG WILHELM
IPC: C07F9/24
Filed: 1968-01-25
Abstract: 1,153,695. Pesticides containing dichlorovinylphosphoric acid diamides. FARBENFABRIKEN BAYER A.G. 25 Jan., 1968 [1 Feb., 1967], No. 3992/68. Heading A5E. [Also in Division C2] Insecticidal or acaricidal compositions comprise a compound of the general formula where R 1  and R 2 , the same or different, are hydrogen, or optionally substituted alkyl, cycloalkyl, aralkyl or aryl radicals, or together with the nitrogen atom from a heterocyclic ring which may be interrrupted by further hetero atoms, in admixture with a solid or liquid diluent or carrier. The compositions may be formulated as solutions, emulsions, suspensions, powders, pastes and granulates and may be applied 'by watering, spraying, atomising, vapourisation, fumigation, scattering or dusting.
Patent GB-765314-A (GB)
Title: Improvements in or relating to flash light lamps
IPC: H01K1/32
Filed: 1955-02-11
Abstract: 765,314. Photographic flash lamps. PHILIPS ELECTRICAL INDUSTRIES, Ltd. Feb. 11, 1955 [Feb. 13, 1954], No. 4153/55. Class 9 (2). A photographic flash lamp having a closed glass envelope containing actinically-burning material, ignition mechanism and a gas filling is given an external coating of a thermo-plastic synthetic resin of a thickness between 0.5 and 1.5 mms. The coating is formed by immersing the envelope in a dispersion of thermo-plastic synthetic resin particles in a softener or in a liquid containing a softener and subsequently solidifying the deposit on the envelope by heating. To form the layer in a single immersion, a dispersion is used having a viscosity between 250 and 1000 poises measured at 20C. The dispersion may consist of polyvinyl chloride particles in an organic liquid constituted by a softener and a hydrocarbon or hydrocarbon mixture having a boiling range between 200 and 245 C. Suitable softeners given are tricresyl phosphate, dioctyl phthalate, dinonyl phthalate, diethylene glycol benzoate, diethylene glycol dibenzoate, diethylene glycol monomethyl ether phthalate, dioctyl sebacate and dioctyl adipate. In an example, a glass tube 1, Fig. 1, in mould 2 is heated, then blown to the shape shown in Fig. 5 as in Specification 546,189. After assembly of the lamp components and filling with oxygen under super atmospheric pressure the lamp is placed in a holder and immersed in a polyvinyl chloride dispersion at 10 cm./min. and lifted out at 2.5 cms./min. until the bulb is above the liquid. The rate of lift is then increased 40 times and subsequently the bulb still in the holder 4, Fig. 5, is inverted to distribute the liquid uniformly over the glass. The coated bulb is then placed in a furnace 10 at 215C. and rotated. After 3 minutes, the holder is removed from the furnace and the bulb allowed to cool. Organic tin compounds disclosed in U.S.A. Specification 2,618,625, may be added to the dispersion to prevent discolouration on heatings. Lamps which are to be used for the examination of internal organs may be given an internal coating with a high molecular weight polymer of an organo-silicon compound such as polyalkyl siloxanes.
Patent GB-405462-A (GB)
Title: Apparatus for carrying out gas reactions
IPC: B01J19/24
Filed: 1933-02-10
Abstract: Apparatus for effecting gas reactions comprises a number of tubes 24 of refractory ceramic material enclosed in a furnace 14 and connected by elastic joints to the gas supply pipes.  The delivery ends of the tubes pass through stuffing-boxes &c. into a chamber 45 <PICT:0405462/III/1> <PICT:0405462/III/2> <PICT:0405462/III/3> into which a cooling liquid is sprayed.  The deposition of condensible constituents in the reaction tubes is thereby avoided. The cooling liquid and the reaction gases are led alternately into the vessels 38, 39 in which they are separated from one another.  Furnaces.--The heating chamber 14 is provided at each side with regenerators 17, 18 through which the air for combustion is supplied alternately.  The gaseous fuel is fed through channels 23 in the mixing block 20 (Figs. 1 and 3) which are perpendicular to the air channels 22.  Spray - producers.--The cooling liquid is atomized by the device shown in Fig. 4.  The liquid is admitted to the chamber 50 by inclined passages 35 which give it a rotating motion.  An adjustable conical deflector 51 is centrally situated in the discharge orifice.
Patent GB-546396-A (GB)
Title: Improvements in or relating to electric cables
IPC: H01B13/30
Filed: 1941-03-28
Abstract: 546,396. Rubber compositions. PIRELLIGENERAL CABLE WORKS, Ltd., BARRON, H., and ASHFORD, B. O. March 28, 1941. No. 4189. [Class 70] [Also in Groups XXXVI and VIII] In the manufacture of electric cables with oil or compound impregnated insulation, the dielectric filling materials and/or the medium for impregnating the insulation comprises a liquid composition of rubber in mineral oil together with a vulcanizing agent or agents to ensure setting, and preferably an accelerator to control the time and range of temperature required for setting. In one form, wrapping for the conductor or conductors comprises tapes of paper or fabric which, after drying, have been impregnated with either (1) a high melting point composition such as those of. Specification 435,454, [Group XXXVI], preferably a non- bituminous composition, e.g. hard petroleum jelly and gum resin, or (2) a fluid composition of rubber in mineral oil; during the application of the wrapping, the partially insulated conductor is treated at intervals along its length with the composition according to the invention which composition may include an excess of vulcanizing agent when the paper is impregnated by composition (2). In multicore cables, or cables with stranded conductors, the interstices between the cores or the strands are filled, before or after the application of the tapes, with composition (1) or (2) above, vulcanizing agents preferably being added in the case of composition (2). The conductor wires may be coated with metal such as tin. After completion of the wrapping, a metal or rubber sheath is applied and the cable is stored for a few hours at slightly elevated temperatures such as 35 to 45‹C, to facilitate stiffening of the rubber-oil compound. A highly refined mineral oil of low viscosity may be used, and have up to 15 per cent. of rubber added the oil may have a viscosity at 20‹C. of 120 to 180 seconds Redwood, specific gravity at 15‹C. of .875 to .9, cold test maximum-30 ‹C., and power factor at 60‹C. a maximum of .01. One composition comprises, in parts by weight, refined mineral oil 100, rubber 12, sulphur 1.2, zinc oxide 2, resin oil 5, and accelerator, Butyl 8, 2. Specification 544,089 also is referred to.
Patent GB-199067-A (GB)
Title: Improvements in or relating to lace machines
IPC: D04C5/00
Filed: 1922-02-13
Abstract: 199,067. Gifford, Fox, & Co., Ltd., and Hawker, W. J. Feb. 13, 1922. Lace machines; bobbins and carriages.-The bobbin carriages of roller locker lace machines are provided with central toes H and lateral toes G and are operated by lockers K, K<1> to which are secured T-shaped ribs or teeth J. J<1>. The lockers are driven by pinions M, M<1> and racks N, N<1>. The rack N<1> is mounted on a frame consisting of levers 0<1>, Q<1>, pivoted at P<1>, R<1> and adjustably connected by a link S<1>, and is actuated by cams W<1>, X<1>. The rack N is similarly mounted and driven.
Patent GB-213385-A (GB)
Title: Improvements relating to apparatus for moulding and boxing fats and the like
IPC: A23D9/04
Filed: 1923-02-13
Abstract: 213,385. Dowd, J. T. Feb. 13, 1923. Moulds.-In apparatus for moulding and boxing fats and the like, the material is moulded at x and, by withdrawing the slide 15, the articles are allowed to fall into containers 24 supported in a double slide member 18, 19. This member may then be placed on a table and the slide 19 withdrawn, when the articles in their containers are deposited on the table in regular order for subsequent handling, such as labelling and lidding. Channels 14 are provided between the moulds to receive cooling mixture.
Patent GB-579886-A (GB)
Title: Improvements in and relating to ferments
IPC: C12N1/14
Filed: 1943-03-17
Abstract: Kefir or Kefir-like material, such as the ferment described in Specification 457,465, is grown in a culture medium therefor of known character to which has been added a proportion of cereal or leguminous seeds or the meals or flours derived therefrom, soya beans or soya bean flour or meal being preferred.  The culture medium may be milk, or cream, or sugar containing liquids to which fruit or fruit pulp may be added.  The Kefir-like material in the form of granules may be strained off from the liquid and used as a ferment or an absorbent for bacteria, enzymes, viruses, yeasts, hormones, ammonia, disinfectants or therapeutic substances such as penicillin. The strained liquid which contains bacteria and yeasts may be mixed with additional cereal or leguminous flour such as soya bean flour, to form a paste, which may be used as a food or laxative, or as a ferment for milk, or for sugar or starch containing liquids; or mixed with lactic acid or other therapeutic substances as an ointment. Alternatively, the paste may be dried and then ground.  The third Provisional Specification describes also the use of other Kefir and Kefir-like materials as absorbents for ammonia, lactic acid, disinfectants, enzymes and bacteria such as bacillus bulgaricus and bacillus acidophillus, such materials being used as ferments and ointments.
Patent GB-275681-A (GB)
Title: Improvements in the method of and apparatus for drying or conditioning products composed of different components having different moisture contents
IPC: A43D11/14
Filed: 1926-02-15
Abstract: 275,681. Marks, E. C. R., (Industrial Dryer Corporation). Feb. 15, 1926. Air controlling temperature, humidity, and direction of flow of. - Articles, such as shoes, the components of which contain different moisture contents are dried by a circulating current of air, the humidity of which is regulated' by the discharge of a portion of the air and the admission of fresh air, so as not to effect drying of the least moist component. The shoes are stacked on trucks disposed in a chamber through which a calculated volume of air is circulated by a fan J, steam or electric heaters F, G respectively being disposed in a space 0 to enable a predetermined temperature to be maintained. Moisture-laden air is exhausted from the apparatus through a valved-shaft L, while a correspending volume of fresh air is admitted through a valved-shaft K. The valves in the shafts are controlled either manually or automatically.
Patent GB-335499-A (GB)
Title: An improved boring and tapping tool
IPC: B23G5/14
Filed: 1930-02-08
Abstract: 335,499. Mannesmannr÷hren-Werke. April 29, 1929, [Convention date]. Addition to 310,373. Boring-heads; taps.- The boring and tapping tool described in the parent Specification is provided with means for adjusting the working diameters of the two cutters, or sets of cutters, independently. A bush k located axially by a pin o carries two nuts l<1> and l<2> right and lefthanded respectively, the former engaging with a sleeve f and the latter with a mandrel g; both nuts are located axially in the bush bv screws m<1> and m<2>, but are capable of rotation therein, being held in various positions by spring- controlled bolts p<1> and p<2> operating in notches. The bush k is prevented from rotation relative to the sleeve f by means of a spring-controlled bolt n which engages in any one of a number of longitudinal slots s cut on the sleeve. Adjustment of either cutter is obtained, after releasing the corresponding nut, by withdrawing either p<1> or p<2>, then rotating a certain amount so that the sleeve f or mandrel g is axially displaced with respect to the holder a. Rotation of both nuts in the same direction gives either an increase or decrease in the working diameter of the cutters. By withdrawing spring bolt n only, rotation of the bush k will effect a uniform alteration of both cutters.
Patent GB-401928-A (GB)
Title: Improvements in and relating to sound recording processes
IPC: G11B23/00
Filed: 1933-02-13
Abstract: 401,928. Recording sound. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Compagnie Francaise pour l'Exploitation des Procedes Thomson - Houston; 173, Boulevard Haussmann, Paris.) Feb. 13, 1933, No. 4375. Convention date, Feb. 12, 1932. [Class 40 (ii).] A sound record for photoelectric reproduction is obtained by a method which involves no photographic process, and which consists in (a) vibrating in contact with a ribbon coated with lampblack a member S which vibrates in accordance with the sound to be recorded, so that a sound trace of varying width is thus produced, Fig. 4, (b) etching the ribbon so as to form an intaglio surface on the portion from which the coating has been scraped, and (c) printing a record on a suitable base, e.g. on a film of the material known under the registered Trade Mark " Cellophane," by transfer of ink from the intaglio. The ribbon may be made of copper, and the etching may be effected with nitric acid vapour. Background noise during reproduction may be eliminated by using a recording device as shown in Fig. 5. Two vibratory engraving members S, S<1 >are provided in this case, the member S operating as in Fig. 4, while S<1> is influenced by a rectified component of the sound currents . In each of the arrangements shown, T represents a suction tube for removing the displaced lampblack.
Patent GB-706417-A (GB)
Title: Improvements in and relating to mechanism for building packages of yarn on uptwisting and like machines
IPC: B65H54/32
Filed: 1951-02-23
Abstract: 706,417. Winding yarn. SCRAGG & SONS, Ltd., E., and FINDLOW, E. Jan. 23, .1952 [Feb. 23, 1951], No. 4394/51. Class 120(2) Traverse mechanism of the kind wherein the yarn is fed to a package 9 by a guide moving to and fro across the package and resting thereon, the traverse being automatically increased, as the package grows, to form tapered ends, comprises a yarn guide 13 carried by an arm 12 universally pivoted at 11, 15 to a fitting 10 on a traverse rod 5, there being mounted parallel to the rod 5 another rod 6 reciprocated in time with the rod 5 but through a greater distance, the rod 6 carrying a slotted clip 20 with which engages a stud 18 on a pivoted T-shaped member 17 formed with ears 21 which through wires 22 support a sleeve 23, slidably and rotatably engaging the arm 12, so that at each end of the traverse, the arm 12 is swung upwardly and inwardly through progressively increasing distances as the package grows, the guide 13 remaining tangential to the package. In a modification, the pivoted member 17 may be oscillated by rack and pinion mechanism mounted on the rod 6.
Patent GB-495757-A (GB)
Title: Improvements in or relating to cathode ray tubes
IPC: H01J29/70
Filed: 1937-02-15
Abstract: 495,757. Television; cathode-ray tubes. RADIOAKT.-GES. D. S. LOEWE. Feb. 15, 1937, No. 4454. Convention date, Feb. 19, 1936. [Classes 39 (i) and 40 (iii)] In cathode-ray tubes provided with ferromagnetic plates which serve at once as electrostatic deflection plates and the polepieces of a deflecting electromagnet, as described in Specification 440,560, the windings of the deflecting magnet are so arranged in two portions that the direct current from a relaxation amplifier in one portion opposes that in the other while the oscillation currents pass through only one portion ; a construction of tubes suitable for such operation is also described. Fig. 3 shows a circuit according to the invention. A relaxation oscillation circuit feeds the grid of a pentode 14 the current from which passes through coils 13a exciting the magnetic cores referred to. From the coils 13a the oscillation current leaks off to earth through a condenser 15, the direct current passing through coils 13 opposed to the coils 13a. A resistance 16 prevents disturbances by currents induced by the coils 13a in the coils 13. The coils 13, 13a, are wound on inwardly projecting polepieces 12, Fig. 1, on a sheet metal ring 11 surrounding the tube 7. The flux passes through magnetic filling pieces 8, 9, pressed against the wall of the tube by magnetic springs 70, to sheet-iron deflecting plates 5, 6 formed as a closed surface of the shape shown. Betweenthe deflecting plates 5, 6 and the screen 21 is an accelerating arrangement consisting of a conducting coating 22a, adjacent to the deflecting plates 5, 6 and connected to the anode 3 of the tube, and a coating 22b surrounding the screen 21. The coatings are maintained at different potentials by the circuit 1 shown and connected by a highresistance helix 23 on the surface of the tube.
Patent GB-490388-A (GB)
Title: Improvements in production of alcoholates of higher alcohols
IPC: C07C29/70
Filed: 1937-02-15
Abstract: Alkali metal alcoholates are made by reacting an anhydrous alcohol containing at least four carbon atoms with an alkali alcoholate of a lower alcohol containing not more than four carbon atoms and distilling off the free lower alcohol leaving the higher alcoholate in solution in the higher alcohol.  Suitable higher alcohols are the monohydric primary, secondary, and tertiary aliphatic alcohols aromatic alcohols such as benzyl alcohol, and cyclic alcohols such as cyclohexanol.  The alcoholate of the lower alcohol is preferably produced by the process described in Specification 490,387.  In examples, (1) a solution of sodium amylate in amyl alcohol is produced by reacting amyl alcohol with sodium methylate obtained by reacting sodium amalgam with methyl alcohol in contact with a graphite electrode, the free methyl alcohol being finally distilled off; (2) sodium cyclohexanolate is produced in a similar manner, using sodium ethylate made by reacting sodium amalgam with ethyl alcohol in contact with an iron grid electrode.  The Specification as open to inspection under Sect. 91 contains an example in which methyl alcohol is treated with sodium amalgam in the presence of an alloy electrode and butyl alcohol is added, the methyl alcohol being distilled off; carbon disulphide is then added to the solution of sodium butylate in butyl alcohol, and sodium butyl xanthate precipitates.  This subject-matter does not appear in the Specification as accepted.
Patent GB-1195143-A (GB)
Title: Naphthalimide Derivatives and methods for preparing the same
IPC: C07D221/14
Filed: 1968-01-29
Abstract: 1,195,143. Naphthalimide derivatives. NIPPON KAYAKU K.K. 29 Jan., 1968 [30 Jan., 1967; 10 May, 1967; 2 Sept., 1967], No. 4520/68. Heading C2C. [Also in Division D1] Novel compounds of the general formula wherein R 1  is an alkyl group or an alkyl group substituted with a hydroxyl, alkoxy, phenoxy or phenyl group; n is 2 or 3; X is where R 2  and R 3  are each alkyl groups, substituted alkyl groups or alicyclic groups or R 2  and R 3  together form a ring including the amino N atom; R 4  is H or the residual group of a quaternizing agent, and when R 2 , R 3  and R 4  are all methyl groups and n is 3, R 1  has two or more carbon atoms; R 5  is H or alkyl; R 6  is alkyl, phenyl, or substituted phenyl; Y is an anion, are prepared by (1) treating naphthalic acid-4-sulphonic acid anhydride with an amine of the general formula NH 2 -(CH 2 ) n N(R 2 )R 3 , or subjecting the resulting naphthalimide-4-sulphonic acid to reaction with an alcohol or an alcoholate thereof of general formula R 1 OH in the presence of a condensing agent and finally treating the compound with a quaternizing agent or with an inorganic or organic acidic compound capable of forming a salt with the amine or (2) alkylating 4-hydroxynaphthalic acid anhydride with an alkylating agent, subjecting the product to reaction with one of the amines as used in method (1) and finally treating the resulting product with a quaternizing agent or with an inorganic or organic acidic compound capable of forming a salt with the amine. Numerous examples are given, in which R 1  is CH 3 , C 3 H 7 , CH 3 OC 2 H 4 , C 4 H 9 , C 2 H 5 OC 2 H 4 , C 6 H 5 C 2 H 4  or C 2 H 5 . Amongst the quaternizing agents employed are HCl, H 2 SO 4 , HClO 4 , ClCH 2 CO 2 H, CH 3 CO 2 H, p-toluenesulphonic acid and alkyl esters thereof, the acid chloride thereof, alkyl and aralkyl halides, C 6 H 5 OC 2 H 4 Cl, ClCH 2 CONH 2 , ClCH 2 COOC 2 H 5 , acetyl chloride, ethylsulphonyl chloride, dialkyl sulphates and sultones. Reference has been directed by the Comptroller to Specification 962,019.