baber/WOPTO huggingface dataset:
Patent GB-1001207-A (GB)
Title: A method of making filamentary semiconductor crystals
IPC: C30B15/00
Filed: 1962-09-25
Abstract: 1,001,207. Semi-conductor crystals. TOKYO SHIBAURA ELECTRIC CO. Ltd. Sept. 25, 1962 [Sept. 30, 1961], No. 36383/62. Drawings to Specification. Heading H1K. [Also in Division B3] Filamentary semi-conductor crystals are made by covering a stock of semi-conductor material over its entire surface with a glass which has a melting point below the melting point of the stock material, heating the covered stock into a softened state and stretching the softened stock to a desired extent. The lower limit of the melting point of the glass is 250‹ C. below that of the semi-conductor material. In one embodiment powdered germanium in a borosilicate glass tube is heated until the germanium melts taking up an elongated ellipsoidal form enclosed by the glass. The glass tube is then gripped at both ends and stretched so as to produce a glass-germanium co-axial filament. An inert gas may be sealed in the glass tube initially, or the tube may be evacuated, to prevent oxidation. The filament may finally be immersed in an etching solution to remove the glass leaving the core of a semiconductor filament. In a further embodiment an amount of germanium enclosed by a glass wall is placed in a crucible with an apertured base which is then heated. The glass is drawn vertically downwards together with the germanium to form a filament. The filament is then air cooled and may be etched as before. Silicon or bismuth telluride may be used instead of germanium and the glass used may be of the silicate, aluminium silicate, borosilicate, or lead silicate variety. Filamentary crystals obtained as described may be subjected to an after treatment by a zone melting process in which the crystal is arranged in a grooved graphite jig accommodated in a quartz tube. Suitable impurity activators may be included in the glass so as to produce filamentary crystals with a different conductivity type core from that of the peripheral region.
Patent GB-823007-A (GB)
Title: Production of 1.4-and 1.5.cyclo-octanolone by oxidation of cyclo-octane
Filed: 1957-11-22
Abstract: 1.4 and 1.5 cyclo-octane diols prepared by hydrogenation of the corresponding keto alcohol are converted into polyesters by reaction with adipic or suberic acid, or into polyurethanes by reaction with isocyanates.ALSO:The invention comprises 1,4- and 1,5-cyclooctanolone and the preparation of these compounds by the oxidation of cyclo-octane in known manner, with molecular oxygen; and the separation of the 1,4- and 1,5-cyclo-octanolone from the residues remaining after the distilling off of any cyclo-octanone and cyclooctanol formed, together with any remaining cycloctane. Suitable reaction conditions are e.g. 60-250 DEG  C. and 1 to 50 atmospheres pressure, and oxidation catalysts such as manganese stearate, cobalt oleate, cobalt naphthenate, permanganates and barium cinnamate or peroxides may be present.  The oxidation is preferably allowed to proceed until about 10 to about 50% of the cyclo-octane is reacted, the remaining cyclo-octane being recycled.  The distillation residues which contain small amounts of suberic acid are preferably stirred with one-fifth to twenty times their weight of water which may be between 0-100 DEG  C., preferably between ambient and about 60 DEG  C.  The cyclo-octanolones in the aqueous layer can be separated out by the addition of an electrolyte, e.g. the chlorides or sulphates of sodium or potassium, which should be added in sufficient amounts to saturate the aqueous layer.  The two isomeric cyclo-octanolones may then be separated from each other by addition of one-fifth to five times by weight of the mixture of a hydrocarbon, preferably a hydrocarbon fraction boiling up to about 200 DEG  C., e.g. petroleum ether or ligroin.  The 1,4-cyclo-octanolone only dissolves in the solvent.  The cyclo-octanolones may be further purified by recrystallization or distillation.  The compounds of the invention may be hydrogenated, e.g. at 150-200 DEG  C. at 100-200 atmosphere pressure in the presence of a Raney nickel to produce the corresponding diols, which may then be reacted with adipic or suberic acid to produce polyesters or oxidized with nitric acid to produce adipic and succinic acid.  The hydrogenation may also be carried out continuously at 220 DEG  C. by the trickling method. Polyurethanes may also be obtained by reaction of the diols with isocyanates.  An example illustrating the preparation of 1,4- and 1,5-cyclo-octanolone is given, and the corresponding oximes, phenylhydrazones, urethanes, phenylurethanes, and hydrogenation products mentioned.
Patent GB-1282555-A (GB)
Title: High vacuum ejector pump
Inventor: RICE GRAHAM
IPC: F04F9/00
Filed: 1968-07-31
Abstract: 1282555 High vacuum jet pumps UNITED KINGDOM ENERGY AUTHORITY 31 July 1969 [31 July 1968] 36532/68 Heading F1E In an ejector pump the operating medium is arranged to be derived by boiling by an electrical resistor heater element 18 formed from a porous resistor material and through which the fluid is caused to flow. The working fluid is delivered from a reservoir 17 by a metering pump 25 via a pipe 24 to the element 18. As shown a single stage pump has the element 18 as a thick walled openended cylinder. Other embodiments may comprise two stage pumps, and a single stage horizontal pump. The heater element may be in the form of a disc and disposed at the bottom of the pump. A steam ejector pump, Fig. 7 (not shown) is also described. The face of the heater element may be electrically insulated so that liquid may enter the porous structure before vaporization occurs. The operating medium may be water, mercury, or a phlegmatic organic liquid.
Patent GB-959707-A (GB)
Title: Improvements relating to airmen's seat harnesses
IPC: B64D25/06
Filed: 1961-10-11
Abstract: 959,707. Airmen's seat harnesses. J. MARTIN. Oct. 2, 1962 [Oct. 11, 1961], No. 36534/61. Heading A3V. An airman's seat harness comprises a pair of lap straps anchored to the aircraft seat and a pair of holding down straps extending upwardly between the airman's legs from laterally spaced apart locations on the seat base, each lap strap being associated with an individual holding-down strap to constitute a strap-pair, one member of which extends through an eye at the free end of the other member, its free end fastened by a quick release box, one member of the strap pair having lengthadjusting means. The seat harness includes chest straps 3, 4 anchored to the seat back, their free ends fastened by quick-release box 11 lap straps 5, 6 extending from anchorages 7 at the sides of seat-pan 8 about the airman's thighs and terminating with ring fittings 12, 13 and holding-down straps 9, 10 constituted by a single length of webbing passing through spaced apart inverted loops 14, 15, on the front of the seat 2, the ends extending through ring fittings 12, 13 and being fastened by a second quick-release box 16. Quick-release boxes 11 and 16 are mounted on breast plate 17 and are automatically actuated during ejection of seat 2 by a time delay mechanism 18 operating via cables 19 and 20. Chest straps 3, 4 and lap straps 5, 6 have automatic tensioning devices effective during ejection comprising a snubbing device 22 and cord 23 anchored by a weak link to the aircraft structure so that the straps are pulled through devices 22 which prevent slacking when the weak link is broken. Straps 5, 6 have adjusting buckle 21. The arrangement may be combined with a parachute harness. Other embodiments in which the lap straps are attached to the quick-release box and the holding-down straps are adjustable with end ring fittings are referred to. Specification 948,949 is referred to.
Patent GB-429006-A (GB)
Title: Improvements in or relating to rotary balances
IPC: G01V7/10
Filed: 1934-12-20
Abstract: 429,006. Measuring gravitational forces. ASKANIA-WERKE AKT.-GES. VORM. CENTRALWERKSTATT DESSAU UND C. BAMBERG-FRIEDENAU, 87, Kaiserallee, Friedenau, Berlin. Dec. 20, 1934, No. 36594. Convention date, Dec. 20, 1933. [Class 97 (iii)] The beam 5 of an E÷tv÷s torsion balance is supported by the member 3 carrying the index mirror 2 so as to be rotatable about an axis substantially coinciding with the main axis of inertia 4 passing through the weights 10, 11. In the form shown, the hollow beam 5 is obliquely suspended from a parallel bar 6 secured to the member 3 by two threads 7, 8, fastened to the beam at the axis 4 by interior clamping mechanism 9. 1 is the torsion thread. In a modification the member 3 may be provided with a rigid axis on which the beam 5 is suspended by pin bearings.
Patent GB-786393-A (GB)
Title: An improved hydraulic brake device for bicycles and bicycles with auxiliary motors
IPC: B62L3/02
Filed: 1955-12-21
Abstract: 786,393. Cycle brakes. GIELEN, J. H., and OTTO, J. H. Dec. 21, 1955 [Dec. 21, 1954], No. 36601/55. Class 136(2) An hydraulic brake device for cycles is provided with master cylinder 4 with a spring loaded piston 8 mounted in the pedal shaft bracket, the master cylinder being connected to the brake cylinder by a conduit and the piston 8 being coupled with the pedal shaft 1 in such manner that upon back pedalling the piston 8 is actuated against the pressure of the spring 9. The cylinder 4 contains an axial sleeve 6 through which the pedal shaft 1 is led. A part of the inner surface of the cylinder 4 is provided with axial grooves 7. The piston 8 consists of oil-resistant rubber and is covered by a pressure plate 10. Two screwline shaped cams 11 are fitted to the pedal shaft and are in contact with corresponding screwline shaped cams of a member 12. The member 12 is provided with bevelled recesses 13 within which rolls 14 are situated. The rolls are locked in holes in a ring 15 which is fitted with springs so that the ring is in light frictional contact with the grooved part 7 of the cylinder 4. Upon pedalling the member 12 is taken along by the pedal shaft. On back pedalling the rolls 14 will rise along the bevelled surfaces of the recesses 13 so that they are pressed into the axial grooves 7 of the cylinder. The member 12 is prevented from turning and will be moved to the right, thereby moving the piston 8 to the right through the intermediary of the pressure plate 10. The liquid in the cylinder on the right hand side of the piston will be pushed through the opening 16 into the conduit system to operate the brake cylinder,
Patent GB-1516882-A (GB)
Title: Process for producing irregular colour effects
IPC: D06P1/96
Filed: 1975-09-05
Abstract: 1516882 Irregular colour effects on textiles HOECHST AG 5 Sept 1975 [5 Sept 1974] 36703/75 Heading D1B Irregular colour effects are produced on textile materials by applying a layer of bubbles of an aqueous surfactant-containing dyestuff dispersion, which dispersion has a viscosity of 40 to 190 mPa.s. the bubbles having a diameter of at least 10mm and allowing the bubbles to burst. The bubbles are produced by passing air or an inert gas through the dyestuff dispersion. Polyamide, polyester, polyacrylonitrile and cotton materials may be dyed. The surfactant may be a sulphonated paraffin or olefins having 12 to 18 carbon atoms, alkyl phenol polyglycol ethers and fatty alcohol and fatty acid polyglycol ethers of MW 400 to 900.
Patent GB-826663-A (GB)
Title: Improvements in and relating to snow ploughs and like surface scraping appliances
IPC: E01H5/06
Filed: 1956-02-27
Abstract: 826,663. Surface scraping machines. BROCK, G. Feb. 27, 1957 [Feb. 27, 1956], No. 36744/58. Divided out of 826,662. Class 107 A snow plough or like surface scraper for attachment to the draw-bar of a motor vehicle comprises a mould board, as described in Specification 826,662, mounted on and angularly adjustable with respect to the axes of a shaft which is carried by a socket on a structure attached to the vehicle so that the shaft is capable of a limited rotary movement to enable the mould board to follow any transverse inclination, e.g. camber, or the surface under treatment. As shown in Fig. 4, the flexible mould board 20 is sandwiched between rigid members 21, 22 and may be angularly adjusted relative to the line of travel by means of the locking pin 33 which passes through the arms 31 and holes 30 in the semi-circular plate 29 attached to the member 21. The arms 31 carry a short Shaft 34 which is received by a socket 37 and held in position by a pin 38 passing throug a hole in the shaft 34 and a slot 37a in the socket 37 to permit a limited rotary movement of the shaft the socket being attached to legs 35 which in turn are connected to the drawbar 36 by links 39. Modifications are shown in Figs. 5, 8 and 11, the first having two mould boards carried in sockets on a transverse member 41 itself carried in the socket 37, the second showing the two legs 35 adapted for connection to the hydraulically operated lift arms of a tractor and the third showing two overlapping mould boards attached to a sub-frame 41 to be underslung on a vehicle chassis.
Patent GB-343212-A (GB)
Title: Manufacture of photographic surfaces for the bleaching-out process
IPC: G03C7/02
Filed: 1929-12-02
Abstract: 343,212. Photographic sensitive materials. GROVES, W. W., 30, Southampton Street, London.-(I. G. Farbenindustrie Akt.-Ges.; Frankfort-on-Main, Germany.) Dec. 2, 1929, No. 36904. [Class 98 (ii).] A layer for use in the bleach out process comprises a nitrogen free basic oxonium dyestuff, other than an anthocyanin. Such dyestuffs are for example 3: 6-dihydroxy-9-phenyl-xanthoxonium chloride and its ethers and 3: 6-di-methoxy-9-ocarbmethoxy-phenyl-xanthoxonium chloride. A layer for the production of multicolour pictures comprises a mixture of resorcin-benzeindimethylether bromide, anilino-dimethylamino-phenonaphthoxyazine chloride and 2: 7-dimethyl-3-dimethylamino-6-methylamino-azazonium phenyl chloride in a mixture of nitrocellulose and ethylcellulose butyrate.
Patent GB-1097147-A (GB)
Title: Liquefied gas containers
IPC: B63B25/16
Filed: 1965-08-27
Abstract: 1,097,147. Carrying liquefied gases. ESSO RESEARCH & ENGINEERING CO. Aug. 27, 1965 [Sept. 4, 1964], No. 36906/65. Headings B7A and B7S. [Also in Division F4] Spaced vertically extending jaws 17 secured to the exterior of each of the flat side walls 16 of a liquefied gas storage container 12 and forming keyways 15 are engaged by bearing blocks 21 of heat insulating material, e.g. polyurethane foam or fibre glass resin adhesively secured to opposite sides of key members 19 integral with the walls of a surrounding supporting structure, e.g. the hold 14 of a strip lined with heat insulation material 20. The coefficient of expansion of the bearing block material is about 2À25 times that of the jaws 17 and the width of the key member 19 must be at least one-fourth that of the associated blocks 21 to ensure that the blocks 21 and jaws 17 remain in contact during the whole temperature range.
Patent GB-1286351-A (GB)
Title: Oxytetracycline solutions containing polyethylene glycols
IPC: C07C231/00
Filed: 1970-07-30
Abstract: 1286351 Oxytetracycline compositions PFIZER CORP 30 July 1970 [15 Jan 1970] 37007/ 70 Heading A5B An oxytetracycline solution for parenteral, oral or local application contains oxytetracycline in the form of the free base or salts, a soluble magnesium salt, polyethylene glycol and water, which solution exhibits a basic pH value, contains a polyethylene glycol with an average molecular weight of 1,000 to 20,000 and 60-80% by weight water. A base, such as an alkanolamine is preferably present. Antioxidants such as formaldehyde sulphoxylates, sodium metabisulphite, ascorbic acid and isoascorbic acid may also be present, as may small amounts (up to about 5%) of polyvinylpyrrolidone.
Patent GB-1468116-A (GB)
Title: Esters of 5-n-butyl-pyridine-2-carboxylic acid
IPC: C07D213/79
Filed: 1975-09-09
Abstract: 1468116 Esters of 5-butylpicolinic acid JOHANN A WULFING 9 Sept 1975 [11 Sept 1974] 37040/75 Heading C2C The invention comprises compounds of formula and their pharmaceutically acceptable salts, wherein R is H or Me, and n is 1-3. These compounds are prepared by reacting (a) a haloalkyl 3,4,5-trimethoxybenzoate with an alkali salt of 5-butylpicolinic acid in a polar solvent, or (b) a hydroxyalkyl 3,4,5-trimethoxybenzoate with 5- butylpicolinoyl chloride in presence of a condensing agent. Therapeutic compositions having antihypertensive activity comprise compounds of the above formula.
Patent GB-1493655-A (GB)
Title: Foams having isocyanurate carbodiimide and urethane linkages
IPC: C08G18/02
Filed: 1975-09-09
Abstract: 1493655 Foams containing carbodiimide; isocyanurate and urethane linkages BASF WYANDOTTE CORP 9 Sept 1975 [26 Dec 1974] 37113/75 Heading C3R Foams containing carbodiimide, isocyanurate and urethane linkages are prepared by reacting an organic polyisocyanate with a polyol having an OH number of 100 to 900 and a nitrogen content of 1 to 15% by weight at an NCO/OH equivalent ratio of from 2 : 1 to 10 : 1, the polyol being the alkylene oxide addition product of a Mannich condensation product of a phenolic compound with formaldehyde and a primary or secondary aliphatic amine or alkanolamine. Preferably the polyol is prepared by reaction of propylene oxide with the Mannich condensation product of formaldehyde, diethanolamine and phenol. Catalysts promoting the carbodiimide and/or isocyanurate reactions are unnecessary, but urethane-forming catalysts may be incorporated in the reaction mixture. The foams are blown by carbon dioxide released as a result of the carbodiimide formation. Rigid foams, having flame-retardant properties, are obtained.
Patent GB-812130-A (GB)
Title: Improvements in moistureproof heat sealing cellulose films
IPC: C08J7/052
Filed: 1954-12-23
Abstract: Graft copolymers consisting of a main chain of a vinylidene chloride copolymer and a side chain of a polyethyleneimine are made by mixing an organic solvent solution of the copolymer with a solution of the polyethyleneimine.  The speed of reaction may be modified by adding maleic anhydride to the solution of the copolymer or during the formation of the graft copolymer.  The exemplified main chain copolymer is of vinylidene chloride and acrylonitrile.  The solvent for the copolymer is a mixture of methyl ethyl ketone and toluene, and for the polyethyleneimine tetrahydrofurfuryl alcohol.  Organic solvent solutions of the graft copolymers are used for coating regenerated cellulose films.  The solutions may also include waxes such as an ester amide type wax or a microcrystalline wax.  The coated films are used for packaging.  Specification 590,698, [Group VIII], is referred to.
Patent GB-1372680-A (GB)
Title: Yarn bulking jet
IPC: D02G1/16
Filed: 1973-08-08
Abstract: 1372680 Bulking yarns HERCULES Inc 8 Aug 1973 [5 Sept 1972] 37505/73 Heading D1F In a yarn bulking jet, the yarn passageway is effectively enlarged by a slot adjacent thereto to create an aspirating jet which assists string- ing up and is thereafter blocked or filled with a movable and/or removable insert. The jet shown in Fig. 1 comprises a body 1 providing a yarn passageway 3 (having an entry 6, a bore 7 of square cross-section, a throat 8 of rectangular cross-section and an expansion chamber 9) intersected by fluid passageways 5 which connect with fluid source passages 4: a door 11 is recessed to form a tapered slot 11 which may be filled by a removable insert 12. In a modification, Figs. 4 and 5, a door 17 comprises a slot 20 into or from which an insert 25 is guidably retracted or advanced by rotation of set screw 22 the head 24 of which is engaged in a recess 27.
Patent GB-321101-A (GB)
Title: Improvements in or relating to small arms
IPC: F41C23/00
Filed: 1928-12-19
Abstract: 321,101. Naamlooze Vennootschap Union Maatschappij voor Automatische Metaalbewerking, and Diener, K. Dec. 19, 1928. Stocks; breech actions, drop-down barrel.- The stock is secured to the, barrel by upper and lower splints 13, 14 with gripping claws 3, a recess for the lock being provided in the stock to the left of line AB where the wood ends, and covered in at the sides by lock plates 8 with projections 5 to secure them in position. The lock plate 8 may be of wood, the rear metal part 12 being sunk in the wood and secured by screws 9, 10, 11. In a modification, the top and bottom splints may curve over partly to cover in the sides of the recess, the lock plates then being hinged to the lower splint. In the case of a pistol-grip stock a bore hole 7 through the handle receives the splint 14.
Patent GB-525813-A (GB)
Title: Purification of coal tar hydrocarbons
IPC: C07C7/163
Filed: 1938-12-28
Abstract: 525,813. Desulphurizing hydrocarbons. YORKSHIRE TAR DISTILLERS, Ltd., MAXTED, E. B., and BILLBROUGH, S. Dec. 28, 1938, No. 37580. [Class 91] [Also in Group IV] Coal-tar hydrocarbons are desulphurized under substantially non-cracking and non- hydrogenating conditions by passage with hydrogen or a gas containing free hydrogen at an elevated temperature over or through a catalyst consisting of or containing a metallic thiomolybdate in which the weight of molybdenum is at least equal to that of the other metal; the pressure may be atmospheric, reduced, or raised. Suitable catalysts are thiomolybdates of cobalt, nickel, iron, and zinc ; they may be on carriers, e.g., pumice bauxite, and kieselguhr. Suitable temperatures are 300-600‹C. The product may be freed from any hydrogen sulphide produced and retained, e.g., by washing with soda. For example, commercial benzol or commercial naphthalene is vaporized in a current of hydrogen and passed at 450‹C. and atmospheric pressure over cobalt thiomolybdate supported on bauxite. Toluol and anthracene may also be treated.
Patent GB-1367358-A (GB)
Title: Pawls
IPC: B66D5/34
Filed: 1971-08-10
Abstract: 1367358 Chain stoppers DREXEL EQUIPMENT (UK) Ltd 8 Aug 1972 [10 Aug 1971] 37591/71 Heading B8B [Also in Division F2] A chain stopper in the form of a collapsible pawl is pivotable by means of a handle 7 or a ram, into and out of engagement either with the limbs of a chain moving linearly or round a pulley, or with teeth formed on a flange of the chain pulley, and comprises two pawl parts 8 and 9 pivotable relative to each other by means of an hydraulic ram 27 to facilitate releasing the pawl from the chain when the pawl is compressed along the axis 11 by the chain. The parts 8, 9 are articulated to each other by lateral links 17 and 18 mounted on pins 19, 20 received in elongated slots in the parts 8 and 9. The two links 17, 18 are pivoted together and to a piston-  rod 25 of the ram 27 by a pin 23, whereby upward movement of the rod 25 causes the two parts 8 and 9 to pivot relatively about point 31 and once the pin 23 moves overcentre relative to the line between pins 19, 20, the pawl collapses due to compression from the chain, which is then released. In the embodiment of Fig. 1 (not shown), the pawl is pivoted between side plates which support a runner guiding a chain between a winch and an anchor, the plates being pivotally mounted and having a projection associated with a load cell for indicating chain tension.