baber/WOPTO huggingface dataset:
Patent GB-291292-A (GB)
Title: Air propellers and the method of manufacturing the same
IPC: B64C11/20
Filed: 1927-11-11
Abstract: 291,292. Sukohl, H. Nov. 11, 1927. Screw propellers.-Air propellers of wood are coated with resin, glue, lacquer or celluloid under pressure or by like process whereby the coating extends into the natural pores of the wood. Steel chips, sand or other hard materials in fine state may be added to the coating materials. In one process the propeller is immersed in a solution which is put under pressure. In another process the propeller is first subjected to a vacuum and is then immersed in the solution.
Patent GB-391783-A (GB)
Title: Improvements in the production of threads, films and the like
IPC: D01F2/28
Filed: 1931-11-02
Abstract: Filaments, yarns, bristles, straw, ribbons, films, &c. are made by spinning a solution containing cellulose acetate or other organic ester of cellulose, having an acidyl content below the minimum necessary for solubility in pure acetone, in a solvent mixture comprising a ketone and an alcohol, in particular in acetone and methyl or ethyl alcohol.  In the case of cellulose acetate, the ester employed contains less than two acetyl radicles per molecule of cellulose, for example, it may have an acetyl content of 45-48 per cent acetic acid.  The alcohol may be partly replaced by water.  The solutions may be dry or wet spun.  When dry spinning, it is generally advisable to increase the temperature of the evaporative medium or of the spinning solution, or to raise the rate of flow of the evaporative medium.  According to conditions, filaments of round or flat cross section, or of hollow character, may be obtained.  With cellulose acetates, the acetyl content may vary from 52-40 per cent calculated as acetic acid, and the solvent mixture may contain as much as 50 per cent of alcohol, although good results are obtained with 30-40 per cent alcohol and 70-60 per cent acetone except for acetates of 52 per cent acetyl content when somewhat less alcohol may be used.  The cellulose esters may contain other groups such as nitrate or ether groups.  Specification 356,170 is referred to.
Patent GB-1042699-A (GB)
Title: Semiconductor device with low shunt capacitance
IPC: H01L21/02
Filed: 1965-07-16
Abstract: 1,042,699. Semi-conductor devices. TELEFUNKEN PATENTVERWERTUNGSGESELLSCHAFT m.b.H. July 16, 1965 [Aug. 4, 1964], No. 30375/65. Heading H1K. An integrated circuit comprises a plurality of semi-conductor devices incorporated in a semi-conductor body covered by an insulating layer on which are mounted further circuit elements, the semi-conductor body being recessed beneath these elements so that they are supported entirely by the insulating layer. The recesses may be formed by the action of an etchant (which may be organic or a gas) introduced through apertures etched in the insulating layer near the peripheries of the circuit elements supported by the layer, or by a process starting from the opposite surface of the body. The object of the invention is the reduction of shunt capacitance.
Patent GB-1010862-A (GB)
Title: Improvements relating to electric switching devices responsive to abnormal level or flow conditions in a container
Inventor: MOSS FRED
IPC: G01F23/74
Filed: 1963-07-31
Abstract: 1,010,862. Magnetic switches. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. July 29, 1964 [July 31, 1963], No. 30414/63. Heading H2B. A magnet 1 movable by a float or flowresponsive means repels a radially magnetized disc magnet 4 outside a container 1. The magnet 4 actuates a contact spring 12 cooperating with a fixed contact 10 and located so that the magnet 4 provides magnetic blowout for any arc formed between the contacts 10, 12. The limits of movement of the magnet 4 are set by the sides of an aperture 14 through which a member 13, extending between the magnet 4 and contact, passes.
Patent GB-785882-A (GB)
Title: Synthetic rubber-like materials
Inventor: JOHNSON PHILIP COWEY
IPC: C08G18/60
Filed: 1954-10-22
Abstract: A process for the manufacture of synthetic rubber-like materials by a two-stage interaction of a polyester or polyesteramide and a polyisocyanate or mixtures of any such reactants wherein in the first stage of the reaction an amount of polyisocyanate sufficient to produce only a low molecular weight polymer which attains on heating a maximum Williams Plasticity Number between 200 and 550 is used and in the second stage a further amount of polyisocyanate is added, is characterized in that in the second stage there is also added a substance that will react with a polyisocyanate to form a thermolabile adduct.  The substance is suitably added in the proportion of from 1/2 mol. to 2 1/4 mol. per mol. of polyisocyanate added in the second stage.  The polyester or polyesteramide and the polyisocyanate may be those specified in Specification 767,578, monochlorophenylene - 2 : 4 - diisocyanate also being referred to. In the first stage usually 0.9 to 1.5, and more generally 1.0 to 1.3, isocyanate groups are added to the reaction mixture for each isocyanate-reactive end-group in the polyester or polyesteramide.  In the second stage the polyisocyanate may be one as used in the first stage or may be for example an aromatic triisocyanate such as triphenylmethane-4 : 41 : 411-triisocyanate.  As substance which form a thermolabile adduct (by which is meant a compound containing not more than one free isocyanate group which on heating to 100 DEG  to 180 DEG  C. liberates a compound containing at least two free isocyanate groups in the molecule) there may be used phenol, succinimide, mercaptobenzthiazole, caprolactam, phenyl - b  - naphthylamine, diphenylamine and triphenylcarbinol.  In examples, an ethylene glycol/adipic acid polyester is reacted with naphthylene-1 : 5-diisocyanate to give a rubber-like material of Williams Plasticity Number 511 at 82.5 DEG  C.  This material is dried and then milled with (1) mercaptobenzthiazole; (2) phenol; (3) succinimide; (4) diphenylamine; (5) p-nitrophenol; and (6) o-nitrophenol, followed in each case by milling with naphthalene-1 : 5-diisocyanate.  The mixture may be cured into moulded articles immediately or after prolonged storage.  Specification 553,733, [Group IV], also is referred to.
Patent GB-647715-A (GB)
Title: Improvements in colour television
IPC: H04N9/11
Filed: 1946-10-11
Abstract: 647,715. Television. COLUMBIA BROADCASTING SYSTEM, Inc. Oct. 11, 1946, No. 30450. Convention date, Sept. 7, 1940. [Class 40 (iii)] In a three-colour television transmitter or receiver employing interlaced field scans and such that the number of colours utilized and the number of fields to a frame are not multiples one of the other so that the colour of the respective fields of the interlacing scans is cyclically varied, double or quadruple interlacing is employed and the number of fields per second is 120 or more with the object of reducing colour flicker. As applied to a transmitter for a coloured film moved continuously through a gate 13, each picture frame is scanned five times during its passage through the gate-the film transmission rate being 24 frames per second and the number of field scansions being 120 per second. A colour filter disc 22 which may have three equal segments respectively red, green and blue, or may be of the form described in Specification 647,714, is rotated at the appropriate speed and a set of lenses 1 ... 5 sequentially brought into operation by means of slots 11 ... 51 in a disc 21, Fig. 6, which is arranged to project the five differently-positioned images of the picture frame on to the same area of the cathode 16 of an image dissector 17 whose scanning circuits are operated so that the fields scanned are double interlaced. An intense projection-light 14 is preferably employed and a disc 23 with spiral arcuate slots 1<SP>11</SP>... 5<SP>11</SP> limits the projected beam to a relatively small area on either side of the line being scanned and the movement of the slot uncovers an area of the film equal to that scanned during a field traversal. An infra-red filter 20 is incorporated in the light-projection path-preferably between the filter disc 22 and the dissector 17. In a modified arrangement, Fig. 10, the film 10 is moved intermittently and the image dissector is replaced by a storage tube 33, such as an iconoscope or an orthicon. The image is projected on to the cathode 32 of the tube 33 solely during the blanking periods, such as indicated at 37, 38, Fig. 11. A slotted opaque disc 34 cuts off the light beam from the source 14 during the scanning operation and the colour filter disc 36 is similar to the disc 22 of Fig. 5. The film 10 is moved to bring the succeeding frame into the gate 13 during the period V corresponding to the fifth fieldscanning operation. The system may use three colours with quadruple interlacing as described in connection with Figs. 3, 4 (not shown). The receiver, Fig. 12 (not shown), comprises a cathode-ray tube producing black- and-white images corresponding to the colour components and viewed through a colour filter disc which may be of the form described in Specification 647,714. Specification 546,987 also is referred to. The Specification as open to inspection under Sect. 91 states that the disc for limiting the impingement of the intense projection beam on the film may be employed generally in film scanners. This subject-matter does not appear in the Specification as accepted.
Patent GB-1377176-A (GB)
Title: Apparatus for reproducing a colour image from colour image infor mation coded on black and white film
IPC: G03B33/00
Filed: 1971-10-27
Abstract: 1377176 Colour reproduction T F HANLON 27 Oct 1971 [28 Oct 1970] 30486/74 Divided out of 1377175 Heading H4F Colour images recorded on a black and white film using a three colour striped filter having red, blue and green responsive stripes of different widths, preferably in the ratio 40 : 25 : 35, are reproduced by scanning the film with a flying spot scanner, e.g. a C.R.T., and detecting the transmitted or reflected light with a pair of photomultipliers the output from one being used to determine the colour associated with each stripe being scanned and control a matrix to direct the output signal from the other photomultiplier to the red, blue and green electron guns of a colour television C.R.T. display. Alternatively the film may be scanned by a three-colour laser, the transmitted light being directed on to a screen, and the laser being triggered to produce red, blue and green pulses by the output from a photomultiplier detecting the transmitted light.
Patent GB-306482-A (GB)
Abstract: 306,482. Dottlinger, (nÚe Weyrmayr), R., and Dottlinger, F. Feb. 21. 1928, [Convention date]. No Patent granted (Sealing fee not paid). Gaiters; stockings.-Relates to gaiters intended to be worn inside the shoe and over the stocking and provided with a . strap c passing under the foot, and consists in the provision of a longitudinal strap f joining the strap c to the heel pocket b.
Patent GB-270586-A (GB)
Title: Improvements in or relating to preparing infusions of coffee or the like
IPC: A47J27/026
Filed: 1926-12-03
Abstract: 270,586. Urtis, C. Dec. 3, 1926. Urns and infusing- machines.-In apparatus for infusing tea, coffee, &c., water at 90-100‹ C. circulates from a vessel 1 through piping 7 with which infusers 11 communicate, each infuser 11 having a valve which is operable to supply in turn hot water for the infusion and air under pressure to obtain rapid filtration of the drink. In the construction described, the vessel 1 is heated by a flame 2 in a conical chimney 3 having boiler tubes 4, and is fed with water from a constant level tank 6. Hot water is supplied to an infuser 11 by rotating a valve 12, by a handle 18, to connect the infuser through a port 15 with a tube 16 branched from pipe 7. A port 13 in valve 12 simultaneously connects the infuser with the atmosphere through a tube 14. On further rotating valve 12, the infuser is connected through port 15 and piping 17 with a compressed air reservoir 8 to force the liquid through the infuser. The reservoir 8 is connected through pipe 10 with a compressor 9. One or more infusers 11<1> may also be attached directly to vessel 1. The pipe 7 may have heat insulating lining.
Patent GB-1043013-A (GB)
Title: Process for producing dyed chromate films on zinc and zinc alloys
IPC: C23C22/24
Filed: 1964-08-04
Abstract: A dyed chromate coating is formed on a zinc or zinc alloy surface using a solution consisting of chromic-acid, an inorganic chloride, and an inorganic sulphate, washing the surface, and then dyeing it. The chloride may be sodium, magnesium, calcium, cobalt, copper, zinc, nickel, and ammonium. The sulphate may be sodium, magnesium, zinc, copper, nickel, chromium and titanium. Zinc oxide may also be added. In a specific example, the bath consists of 80 g. 1 chromic acid, 10 g. 1 sodium chloride, and 30 g. 1 copper sulphate, and the dye is red alizarin.
Patent GB-758669-A (GB)
Title: Improvements in or relating to axial-flow compressors
Inventor: MORLEY FREDERICK WILLIAM WALTO
IPC: F01D9/04
Filed: 1953-11-06
Abstract: 758,669. Axial-flow compressor stator casings. ROLLS-ROYCE, Ltd. Oct. 22, 1954 [Nov. 6, 1953], No. 30854/53. Classes 110(1) and 110(3) The stator casing of an axial-flow compressor comprises two (or more) part - circular sections 10, each having internal reinforcing webs 12. The stator blades 21 have root portions 22 each formed with axial projections 23 which engage in corresponding grooves 20 formed in the radially-inwardly-projecting flanges 18 of the ring part 16. Each ring part 16 is also formed with axial projections 17 which are engaged in corresponding grooves 15 in the sides of the reinforcing webs 12. The flanges 18 of each ring part 16 are also formed with axially-projecting flanges 24, the flanges of adjacent ring parts abutting at the working temperature of the machine so that the reinforcing webs 12 are protected from hot working fluid. The parts are located circumferentially by means of washers 25 accommodated in recesses 26 in the abutment flanges of the casing halves, the washers overlapping the ends of the ring halves and the roots 22 of the end blades 21. The casing is made from light alloy such as magnesium-base alloy, and the blade carrying rings 16 are made from an alloy having good hot strength properties. Specification 621,544 is referred to.
Patent GB-1171251-A (GB)
Title: Preparation of Piperazine Derivatives
Inventor: BYSOUTH PETER THOMAS
IPC: C07D295/084
Filed: 1967-07-05
Abstract: 1,171,251. Piperazine derivatives. BRITISH DRUG HOUSES Ltd. 19 June, 1968 [5 July, 1967], No. 30873/67. Heading C2C. Novel piperazine derivatives having the general formula where R = hydrogen or alkoxy (containing from 1-8 carbon atoms in a straight or branched chain). R<SP>1</SP> = alkyl, either straight or branched chain containing up to 10 carbon atoms; alkoxy, either straight or branched chain containing up to 10 carbon atoms; cycloalkyl containing from 5-7 carbon atoms; cycloalkyloxy containing from 5-7 carbon atoms; cyclo-alk-1-enyl containing from 5-7 carbon atoms; phenyl; phenoxy or halogen. R<SP>2</SP> = hydrogen or methyl; R<SP>3</SP> = 2-hydroxycyclohexyl; phenyl or mono-, di- or trisubstituted phenyl, or a 2-pyridyl nucleus; are prepared by reacting a chlorohydrin having the formula where R, R<SP>1</SP> and R<SP>2</SP> have the same meanings as above, and a base with a substituted piperazine having the formula where R<SP>3</SP> has the same meaning as above. The chlorohydrin may be reacted initially with the base to form the corresponding epoxide which is subsequently reacted with the substituted piperazine. 1 - (p - Biphenyl) and 1 - (p - cyclohexylphenyl) - 2,3 - epoxypropane are prepared by heating 1 - (p - biphenylyl) - 3 - chloro - and 1 - chloro - 3 - (p - cyclohexylphenyl) - propan- 2 - ol respectively, 1 - (p - bromophenyl)- hexane and 3 - (p - bromobenzyl) - pentane are prepared by adding bromine to 1-phenylhexane and 3-benzylpentane respectively in the presence of iron powder. 1-Chloro-3-(p-hexylphenyl), 1 - chloro - 3 - (2 - n - butoxy - 5 - cyclohexyl)- phenyl, 1 - chloro - 3 - (o - cyclohexyloxyphenyl) and 1 - chloro - 3 - [4 - (2 - ethylbutyl) - phenyl]- propan-2-ol are prepared by adding a solution of epichlorohydrin in ether to a Grignard reagent prepared from 1-(p-bromophenyl)-hexane, 2 - n - butoxy - 5 - cyclohexylbromobenzene, o - cyclohexyloxybromobenzene and 3-(p-bromobenzyl)-pentane respectively, ethyl bromide and magnesium. 1-(m-Bromophenyl) 1 - (o - ethoxyphenyl), 1 - (o - butoxyphenyl) and 1 - (2,4 - dimethoxyphenyl) - piperazine hydrochloride are prepared by reacting m-bromoaniline, o-phenetidine-, o-butoxy- and 2,4- dimethoxy-aniline respectively with bis-(2- chloroethyl) - amine hydrochloride. 1 - Chloro- 3 - (p - cyclohexylphenyl) - 2 - methyl and 1- chloro - 3 - (p - cyclohexylphenyl) - propan - 2 - ol are prepared by adding methylepichlorohydrin and epichlorohydrin respectively to a Grignard solution prepared from magnesium and pbromophenylcyclohexane. 2 - Bromo - 4 - cyclohexylphenol is prepared by reacting bromine with p-cyclohexylphenol. 2 - n - Butoxy - 5 - cyclohexylbromobenzene is prepared by reacting n - bromobutane and 2 - bromo - 4 - cyclohexylphenol. 1 - (4 - Chloro - 2 - nitrophenyl)- piperazine hydrochloride is prepared by refluxing piperazine and 2,5-dichloronitrobenzene. 1 - (5 - Chloro - 2 - methoxyphenyl) - piperazine hydrochloride is prepared by reacting bis-(2- chloroethyl) - amine hydrochloride and 5- chloro-2-methoxyaniline.
Patent GB-409721-A (GB)
Title: Improvements in or relating to mercury arc rectifiers
IPC: H01J13/20
Filed: 1932-11-02
Abstract: 409,721. Metallic-vapour apparatus. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and GALLIZIA, E., c/o General Electric Co., Witton, Birmingham. Nov. 2, 1932, Nos. 30884/32 and 19742/33. [Class 39 (i).] In a vapour-filled converter such as a mercury-arc rectifier, the form or disposition of stabilising or control members associated with the discharge path of an anode is varied automatically in dependence upon the temperature of a part of the converter. The width of the discharge passages, or the surface area, of the member vary directly with the temperature when the member is used for stabilizing, and vary inversely with temperature when the member is used as a control grid. A stabilising grid, mounted within the anode shield, or at the end thereof, comprises tungsten strips 11, Fig. 1, which are secured in a ring 10 through plates 12 and bimetallic right-angled strips 13, adapted to tilt the strips upon a variation in temperature. The strips may normally lie in planes which are inclined to, or parallel, to the axis of the ring 10. In further modifications, each strip is secured to the ring 10 through a flange, on which is spot-welded, in a direction perpendicular to its length, a number of strips which consist of a metal other than that forming the main strip, or each strip may be disposed radially of the ring, and, preferably, is adapted to turn about the edge nearer the anode, or pairs of strips are adapted to be tilted towards each other. The bimetallic strips may consist of nickel and molybdenum. In another modification, the strips are pivoted within the ring to form a louvre shutter which is operated by means of a rod 20, Fig. 6. Due to the difference of expansion between the container 21 and a rod 24, which is formed of the material known under the Registered Trade Mark of " Invar," the bell-crank 23 is adapted to operate the shutter through rods 20, 22. In further modifications, the member comprises adjacent perforated plates which are adapted to be moved, one over the other, to vary the size of the aperture for the arc therethrough, or it may consist of superimposed sets of parallel wires which are so arranged that the wires of one set are immediately below the spaces in the other set, and the distance between the sets is adjustable to vary the size of the discharge passage therethrough. The members may be operated, through a motor bellows, by an expansible fluid, such as mercury, or by a solenoid, the coil of which is adapted to be energized by means of a temperature relay. A control member and a stabilizing member may be operated by the same thermal responsive device, or one member may be adapted to operate both as a stabilizing and as a control member. Additional grids, preferably in the form of insulated wire mesh may be provided within the anode shield. The converter may be provided with a hot cathode, and potentials may be applied to the grids to prevent, and also to assist, ignition.
Patent GB-277837-A (GB)
Title: Improvements in or relating to the lubrication of ball bearings for cycles
IPC: B62K19/34
Filed: 1926-12-06
Abstract: 277,837. Evans, F. W. Dec. 6, 1926. Channels and reservoirs in ball bearings.-In a ball bearing for the axle bracket or other part of a bicycle, a channel-shaped member C rigidly attached to or formed integral with a lubricator B mounted on the bracket shell A conveys lubricant supplied to the lubricator directly into the bearing. The member C may have channelshaped parts leading to the bearings at each end.
Patent GB-786371-A (GB)
Title: A resilient mounting for vibrating plant, sensitive machinery or other apparatus
IPC: F16F15/027
Filed: 1952-12-05
Abstract: 786,371. Pneumatic springs; dashpots. LEWIS, E. M. March 5, 1954 [Dec. 5, 1952], No. 30941/52. Class 108(3) A resilient mounting for apparatus (not shown) comprises a contractible and expansible chamber 1 containing gas which resiliently supports the apparatus, transmission of the load from the apparatus to the chamber being independent of any sliding fluid seal, volume and pressure of the gas being variable independently of each other. As shown, the chamber 1 also contains liquid. Air and liquid are injected into the chamber 1 through respective valves 5 and 7. Valves 9 enable liquid to be bled from the chamber 1. A variable-setting throttling valve 15 is provided, and acts in conjunction with a piston 11 connected by a rod 12 to a bearing plate 3 for the load secured to a rubber diaphragm 2. The piston rod 12, piston 11 and cylinder 10 may be dispensed with (Fig. 1, not shown). In the latter case. the housing 1 may be charged with air only, and may be connected by a conduit having a variable restriction, with a chamber which is partly filled with liquid and partly with compressed air (Fig. 3, not shown). The dashpot formed by the piston 11 and cylinder 10 may be pneumatic instead of liquid-filled (as shown). The housing 1 may alternatively be formed by a flexible container (Fig. 4, not shown) made of stainless steel or fabric-reinforced rubber. The invention may be applied to supporting a boring machine. Several units may be employed and the level of the machine may be adjusted by varying the pressure in the respective units.
Patent GB-1422066-A (GB)
Title: 4-aminobenzene-sulphonamides
IPC: C09B29/08
Filed: 1973-12-21
Abstract: 1422066 4-Aminobenzene sulphonamides BAYER AG 21 Dec 1973 [23 Dec 1972] 30957/74 Divided out of 1422065 Heading C2C The invention comprises compounds of the formula wherein X represents a straight or branched chain (C 2 -C 4 ) alkylene radical, an aralkylene radical or an arylene radical, R 1  represents H or an optionally substituted alkyl radical, n is 1 or 2 and the nucleus A may contain non-ionic substituents; or a salt thereof. They may be obtained by reacting an aryl sulphochloride of the formula with an amine of the formula  or a salt thereof. The products are useful as azo components in the production of monoazo dyes.