baber/WOPTO huggingface dataset:
Patent GB-1276533-A (GB)
Title: A process for the production of synthetic acrylic filaments
IPC: D01F6/18
Filed: 1969-07-10
Abstract: 1276533 Spinning acrylonitrile polymer filaments JAPAN EXLAN CO Ltd 10 July 1969 [22 July 1968] 34916/69 Heading B5B Synthetic acrylic filaments are spun from a solution of polyacrylonitrile or an acrylonitrile copolymer containing a major weight proportion of acrylonitrile units, or a mixture thereof, in an inorganic solvent, by a process comprising: (i) spinning the solution into air or an inert gas which does not coagulate the solution, (ii) passing the spun solution into an aqueous coagulating bath, (iii) washing the resulting filaments, (iv) stretching the filaments a first time at between 20‹ and 100‹ C. to more than 1À4 times their original length, (v) drying the filaments until their water content is less than 15 wt. per cent, and (vi) stretching the filaments a second time in the presence of steam. The first stretching is preferably carried out in boiling water, and the second stretching takes place at from 100‹ to 170‹ C. The filaments may be subsequently heat-relaxed. The coagulating liquid is preferably water or an aqueous solution of an inorganic salt, and should be at below 30‹ C. Fig. 2 shows a special coagulating bath arrangement for use in spinning filaments of denier less than 1À0, in which the spinning solution is spun into a funnel 12 and then passes through the main bath 15. Coagulating liquid is fed into the funnel and flows down into the bath and through outlet 18, so that the coagulating liquid and spun solution advance in the same direction and frictional forces are reduced. The acrylonitrile copolymers used contain at least 70 wt. per cent of acrylonitrile units, with units of e.g. methyl acrylate and sodium arylsulphonate. The inorganic solvent is preferably an aqueous solution of sodium thiocyanate.
Patent GB-1071713-A (GB)
Title: Improvements in and relating to bowed instruments
Inventor: MEINEL HERMANN
IPC: G10D3/02
Filed: 1964-08-26
Abstract: 1,071,713. Violins. DEUTSCHE AKADEMIE DER WISSENSCHAFTEN ZU BERLIN. Aug. 26, 1964, No.34,935/64., Heading G5J. The classical form of the violin or other bowed instrument -of the Cremona school is improved as to tone and ease of mass production by ensuring that the upper and lower portions of the violin meet the central recesses in an angle which is not less than a right-angle. Fig. 3 shows the upper part of a violin according to the invention superimposed on a conventional violin, shown dotted. The sharp corner 5z of the conventional type has been replaced by the obtuse angle 5z<SP>1</SP>. To facilitate this the re-entrant portions 3z of the known type have been eliminated resulting in a slight increase of width at these points. Using this construction the conventional corner blocks may be reduced in size or omitted and the side stiffening may consist of a number of separate thin supports or of a slotted strip (Figs. 7 and 7a, not shown).
Patent GB-349050-A (GB)
Title: Improvements in or relating to dialling apparatus for automatic telephones
IPC: H04M1/02
Filed: 1929-11-15
Abstract: 349,050. Sets. MIX & GENEST AKT.- GES., 5, Geneststrasse, Schoneberg, Berlin. Nov. 15, 1929, No. 35012. Convention date, Nov. 20, 1928. Void [Published under Sect. 91 of the Acts]. [Class 40 (iv).] The finger disc a of dialling apparatus for automatic telephones is situated in a depression in the front casing wall d so as to be flush therewith. The depression may be made by forming a recess in the wall d or may be formed by a receptacle b which fits into an opening c in the wall d and carries the contacts of the number switch. The finger stop e is stamped out of the wall d.
Patent GB-758107-A (GB)
Title: Improvements in or relating to coils for carrying electric current
Inventor: ALBERT EDWARD PEARSON JOHN GRA
IPC: H01F27/28
Filed: 1953-12-16
Abstract: 758,107. Transformers and inductors. BRENTFORD TRANSFORMERS, Ltd. Dec. 7, 1954 [Dec. 16, 1953], No. 35092/53. Class 38 (2). The winding of a transformer, voltage regulator or the like disposed in a cooling fluid is formed from a conductor having a tapered or wedge-shaped cross section, the longer dimension of the conductor being arranged radially and the shorter dimension lengthwise of the winding and the narrow end of the conductor being at the inside of the winding. The conductor may be bare or insulated. The turns may or may not be spaced from one another at the outer edges.
Patent GB-402599-A (GB)
Title: Process for producing pure whites and a pure yellow in multicolour screened photographic pictures
IPC: G03C7/04
Filed: 1932-12-12
Abstract: 402,599. Colour photography. DURKOPPWERKE AKT.-GES., 2, Nikolaus D³rkopp Strasse, Bielefeld, Germany. Dec. 12, 1932, No. 35188. Convention date, Dec. 10, 1931. [Class 98 (ii).] In order to obtain pure whites and a pure yellow in printing from a coloured negative on to multicolour-screen panchromatic sensitive material, the screen lines of this material are formed of colours which may subsequently be partially bleached, the red and green both bleaching to yellow, and the blue partially bleaching to a lighter blue. The print is developed in a tanning developer, then treated in a tanning bath which slightly bleaches the developed silver and strongly hardens the gelatin according to its silver content, and is finally placed in a bath containing potassium metabisulphite, spirit, ammonia and sodium thiosulphate which removes the unexposed silver halide and partially bleaches the screen lines in the above-stated manner at the non- hardened portions of the gelatin. The slight spreading of the hardening action of the developing and tanning baths from the silvercontaining gelatin lines to adjacent unexposed lines is relied upon to yield the true colours of the picture when the screen lines are partially bleached. In an example, the green lines are formed of a mixture of pyrazol yellow and acid green, the red lines of a mixture of pyrazol yellow and acid rhodamine, and the blue lines of a mixture of patent blue and acid violet, the acid green and acid rhodamine being bleached out, and the patent blue and acid violet being partially bleached, from the unhardened gelatin in the final bath.
Patent GB-1398899-A (GB)
Title: Azo compounds containing amino-hydroxypyridine residues their manufacture and use in dyeing
IPC: C07D498/04
Filed: 1972-07-27
Abstract: 1398899 Azo dyes CIBA-GEIGY AG 27 July 1972 [27 July 1971] 35244/72 Heading C4P New azo dyes of formula D-N=N-K wherein D is a diazo component radical which may contain an azo group and K is the radical of a 2-amino-3-hydroxypyridine or a 5-halo-2- amino-3-hydroxypyridine and metal complexes thereof are prepared by azo coupling followed by metallization if desired. Specified metal complexes are copper, cobalt, nickel and chromium complexes. The dyes may also contain fibre-reactive groups or be basic. They are used to colour silk, leather, polyurethane or polyacrylonitrile fibres and, in particular, synthetic polyamide fibres and wool in green, blue, violet and grey shades.
Patent GB-832173-A (GB)
Title: Improvements in or relating to the production of o-divinylbenzene
IPC: C07C2/48
Filed: 1958-11-03
Abstract: Ortho-divinylbenzene is prepared by reacting acetylene with divinylacetylene in the presence of a complex of nickel carbonyl and an organic phosphine or phosphite having the general formula [(ROm)3P]yNi(CO)4-y where m is 0 or 1, y is 1, 2 or 3 and R is a hydrocarbon radical free of aliphatic unsaturation, preferably aryl. Temperatures of 50-150 DEG  C. and pressures of 50-500 p.s.i. are used; preferably an inert solvent is used, e.g. tetrahydrofuran, benzene, xylene or acetonitrile. The mol. ratio of acetylene to divinylacetylene is preferably at least 2 : 1 and may be 20 : 1 or higher.  Although continuous or semi-continuous operations may be used, batch operations are preferred using 0.5-3 grams of catalyst per mol. of divinylacetylene.ALSO:Ortho-divinylbenzene is polymerized using tert.-butyl peroxide in chlorobenzene under reflux (132 DEG C.) under nitrogen.  The polymer was separated by pouring into methanol.  Infrared analysis indicates that only one of the two vinyl groups is involved in the polymerization.
Patent GB-1028898-A (GB)
Title: Improvements relating to heat exchangers
Inventor: MURDOCH IAN ROBERT
IPC: F28D9/00
Filed: 1963-09-06
Abstract: 1,028,898. Plate type heat exchangers. C. A. PARSONS & CO. Ltd. Dec. 2, 1964 [Sept. 6, 1963], No. 35262/63. Heading F4S. In a heat exchanger comprising a plurality of spaced plates defining flow paths for fluids in heat exchange separately formed headers are attached to the sides of the heat exchanger and have ends located in apertures formed in cover plates of the heat exchanger. As shown, an assembly of spaced plates 1 arranged on locating dowels 5 has headers 2, 3 located in apertures in cover plate 4. During manufacture, when bonding the component parts of the heat exchanger it is stood upon a horizontal flat surface so that the weight of the headers tends to align the assembly of plates.
Patent GB-1417923-A (GB)
Title: Respirator
IPC: A61M16/10
Filed: 1973-07-25
Abstract: 1417923 Respirators AIRCO INC 25 July 1973 [25 July 1972] 35346/73 Heading A5T [Also in Division F2] A respirator for connection to a source of oxygen pressure comprises a bellows container 50, an expansible bellows 52 within the container 50, a valve 26 for introducing the oxygen into the container to collapse the bellows and thereby deliver a predetermined volume of at least oxygen to a patient, means to expand the bellows and thereby remove oxygen from the container and introduce gas into the bellows. Valve 26 controls the supply of oxygen to a venturi 28 and also to a fluidic circuit 36. The flow to the venturi is controlled by valve 44 in control duct 42, and passage 48 connects the venturi chamber 46 with the container 50. The bellows 52 is freely suspended within the container 50 and sealed against the upper surface. A weight 115 located in the bottom of the bellows assists in expanding the bellows, thereby driving oxygen from the container 50 via valve 54 to mixer 68. Oxygen also flows via passage 48 to chamber 46, into conduit 70 via valve 102 and thence to mixer 68. In mixer 68 the gas is mixed with air drawn in via conduit 74, excess oxygen exhausting via pipe 72. The mixture from mixer 68 is drawn into the bellows as the bellows expands. A signal from the patient to the fluidic circuit 36 is relayed to valve 26, causing it to open and pressurise venturi 28 and container 50 via passage 48 and also to close valve 54. The increased pressure within the bellows container 50 causes the bellows 52 to collapse, forcing the gas mixture through conduit 56 to patient 58, the volume delivered being governed by the permitted expansion of the bellows as controlled by string 100 and spool 101. The weight 115 comprises a magnet oriented so that in the collapsed condition, like poles on weight 115 and magnet 113 in switch 112 repel, magnet 113 moving upward to close duct 114, thus sending a signal to part D off fluidic circuit 36 which changes its mode from inhalation to exhalation. The oxygen mixer 68, Figs. 2, 3, 4 (not shown), proportions the oxygen and air by varying the opening for each gas, the total area remaining constant. The oxygen and air inlet ports (164) and (166) respectively are connected to conduits 70, 74 respectively at approximately atmospheric pressure. A projection (170) within the port (168) defines the area (171) divided by projection 173 into two areas (A 1 , A 2 ) Fig. 3. Rotation of shaft (174) moves baffle (172) to vary areas (A 1 , A 2 ) the total area remaining constant, giving oxygen concentrations varying between 21% wt and 100%. Manual or automatic operation is possible, and alarm circuits are described for low gas pressure and failure to cycle.
Patent GB-967454-A (GB)
Title: Process and apparatus for turning eggs tip-down
IPC: B65B23/06
Filed: 1960-10-14
Abstract: 967,454. Orientating and packaging eggs. D. VAN KATWIJK. Oct. 14, 1960 [Oct. 16, 1959; March 5, 1960], No. 35379/60. Headings B8C and B8S. A method of turning an egg from an initial position in which the longitudinal axis of the egg is horizontal into a position in which the tip is directed downwards comprises placing the egg between two substantially vertical, downwardly converging plates, which are moved apart permitting an egg to slide between them, the egg turning tip downwards under the influence of gravity during its sliding movement. In one arrangement, an egg 1 passing along a shoot 3 is stopped by an elastic block 5, and slides between plates 4, 7. When plate 7 is moved away, it turns tip downwards, its centre of gravity 2 being below a line passing through the points of contact with the plates. In a further arrangement (Figs. 3, 4, not shown) the plate 7 is pivoted at its upper end and spring biased, enabling the angle of convergence to alter during the descent of the egg. In a further arrangement, which orientates a plurality of eggs simultaneously, the movement of the plate is controlled by electromagnetic means. Eggs entering the device close microswitches 29, and an electromagnet 25 causes ratchet means 22, 23 to release a friction-driven cam 21 to oscillate the plate 15. As the eggs descend, the switch contact is broken so that the ratchet arrests the cam after one revolution. Guides 17 on the plate 15 reduce the egg spacing. The plates may be covered with materials such as felt, rubber, or velour. The eggs may fall into trays 10 and be conveyed away.
Patent GB-1423644-A (GB)
Title: 6-phenyl-s-triazolobenzotriazepines
IPC: A61P21/02
Filed: 1974-08-13
Abstract: 1423644 6 - Phenyl - s - triazolo[4,3 - a]- [1,3,4]benzotriazepines UPJOHN CO 13 Aug 1974 [27 Aug 1973] 35528/74 Heading C2C The invention comprises compounds of the general formula wherein R is hydrogen, C 1  to C 3  alkyl or C 3  to C 7  cyclo alkyl, R 1  is hydrogen or C 1  to C 3  alkyl and wherein R 2  to R 5  are hydrogen, C 1  to C 3  alkyl, fluorine, chlorine, bromine, nitro or C 1  to C 3  alkylthio and the pharmacologically acceptable acid addition salts thereof. The compounds of formula wherein R<SP>1</SP> is C 1  to C 3  alkyl or C 3  or C 7  cycloalkyl and R 2  to R 5  are as above may be prepared by treating a compound of formula with a N-haloacid amide in which halogen is chlorine or bromine in an inert organic solvent at 60‹ to 80‹ C. to obtain a compound of Formula II heating compound II with anhydrous hydrazine or a hydrazine mineral acid salt and above to 70‹ to 120‹ C. in an alkanol of 2 to 4 carbon atoms.
Patent GB-909807-A (GB)
Title: Improvements in or relating to coke oven batteries
Inventor: RANDELL GEOFFREY EDWARD CHARLE
IPC: C10B31/04
Filed: 1957-11-14
Abstract: 909,807. Charging coke-ovens. WOODALLDUCKHAM CONSTRUCTION CO. Ltd. Nov. 10,1958 [Nov. 14, 1957], No. 35540/57. Class 51(2) In a coke-oven battery wherein each oven has charging openings 5, 3 and 6 disposed between end gas off-takes 10 and 11, the coal lorry 16 has hoppers 17, 18 and 19 controllably discharged by rotary plates 20 with radial ribs 20<SP>1</SP> feeding a shoot 23 and telescopic trunk 21 through an opening 22. A rough control of the rate of coal feed is given by vertically adjustable gates 24 in the hoppers. A finer control is then achieved by varying the speeds of rotation of the plates 20, either by rheostat drive motor controllers, Fig. 4 (not shown), or by variable gear-boxes, Fig. 5 (not shown). The controls are arranged in the driving cabin 28, which may also house a pre-set time delay switch whereby one or more of the rotary plates 20 may be started before the others. The total coal charged is sufficient to fill the oven when levelled by the leveller bar 30, but the control opening is initially completely filled, gases produced during charging being withdrawn by gas or steam injectors 13 and 14 in the off-takes 11 and 10. Specification 625,876 and U.S.A. Specifications 1,900,752 and 1,900,753 are referred to.
Patent GB-342042-A (GB)
Title: Improvements in or relating to apparatus for spraying
IPC: B05B7/10
Filed: 1929-11-21
Abstract: 342,042. Spray-producers. HILL, H., 66, Fitzwilliam Street, Sheffield. Nov. 21, 1929, No. 35593. [Class 69 (iii).] In apparatus of the type comprising a container 10 for the liquid to be sprayed, a pump ] 11 for supplying compressed air thereto, and a tube 19 for con- ,ducting the liquid to the spray nozzle and in which the tube 19 passes through an auxiliary air chamber 15 which may be formed as an extension of the pump barrel, the liquid is discharged through a lateral opening 27, Fig. 2, which enters a longitudinal or helical groove 26 formed in a sleeve 25 carried by the tube 19 and fitting a tubular extension of the chamber 15 on which the atomizing nozzle 18 is screwed. Helical vanes may be provided either on the tube 19, in the nozzle 18 or both. The air chamber may be provided with a handle 16 and may carry a tubular extension connected thereto by a nut 17.
Patent GB-522135-A (GB)
Title: Improvements in and relating to supply and control apparatus for a plurality of x-ray tubes
IPC: H05G1/70
Filed: 1938-12-07
Abstract: 522,135. Switches, mechanical, without quick action; actuation of switches. GENERAL ELECTRIC CO., Ltd., and CALDWELL, J. T. Dec. 7, 1938, No. 35606. [Class 38 (v)] [Also in Group XXXV] Selector switching means, whereby any one of a number of X-ray tubes V1, V4 may be operated with the correct filament voltage for each, comprises a movable member carrying contacts connected to the supply source and adapted to wipe over stationary contacts connected respectively to anode and filament connections of the respective tubes. A tank, housing a rectifier (not shown) and two bushings 23, 24 connected direct or through the rectifier to the anode transformer T1 on which the tank may be mounted, has a spider with an even number of arms 2, 3 in two adjacent groups secured'to its roof. The arms 2 each carry a terminal 6 adapted to be connected to the anode of one of the tubes and the arms 3 each two terminals 8, 9 adapted to be connected to the respective filaments. A spider 14 secured on a sleeve 13 carries two arms 15, 16. The arm 15 has a terminal 17 adapted to wipe in succession over the terminals 6 and the arm 16 two terminals 18, 19 adapted to wipe over the respective terminals 8, 9 in turn. Connections between the terminals 17, 18, 19 and terminal members 28 mounted in the bushings are maintained by telescopic rods 26 with ball-and-socket end couplings. The sleeve 13 is driven by a motor M which also drives a split ring commutator S connected by brushes to oppositely-acting motor windings and a selector switch A co-operating with terminals around the sleeve which are connected to tappings on a filament voltage transformer T3. A manual switch arm D co-operates with contacts connected in turn to brushes engaging the slip ring so that its movement to a particular contact will energize one slip ring brush and cause the motor to drive the sleeve until one slip ring gap registers with that brush. This movement actuates the spider 14 to effect the connections for the appropriate X-ray tube and the switch A to connect the appropriate filament voltage.
Patent GB-453194-A (GB)
Title: Improvements in a combined advertising calendar and greeting card
IPC: B42D5/04
Filed: 1935-12-23
Abstract: 453,194. Struts for card &c. stands. FISHER, J. S., 89, Broad Street, New York, U.S.A. Dec. 23, 1935, No. 35607. Convention date, Dec. 27, 1934. [Class 52 (v)] [See also Groups XIX, XV, and XVIII] A calendar is printed on a card 10, and a sheet 18 bearing greeting or advertising matter is detachably secured to the back of the card. The sheet has a stub portion 17 affixed to the back of the card, the main portion of the sheet being detachable by reason of a row of perforations 16. Two flaps 13 normally folded flat against the back of the card 10 may be turned into the position shown in Fig. 3 and held by a flap 14, the card thus being supported in an upright position on a desk.
Patent GB-762267-A (GB)
Title: Methods of making sintered articles from austenitic stainless steels
IPC: C22C33/02
Filed: 1954-12-09
Abstract: Porous articles of austenitic stainless steel are made by sintering a loose powder of austenitic stainless steel having 0.5 per cent to 1.25 per cent carbon and then subjecting the article to decarburization.  The decarburization, e.g. heating to 2350 DEG F. in a hydrogen atmosphere, may be performed after sintering or during the sintering treatment. The carbon may be reduced to 0.01 per cent.  The following alloys may be treated in this manner: .Cr.18.18.18.20.18 per cent .Ni.8.11.8.8.8  per cent .Mo.-.2.5.-.-.-  per cent .Mn.1.5.0.25.1.5.0.5.1.5 per cent .Si.2.5.5.0.5.0.5.0.5.0 per cent .C.0.5.0.6.1.0.1.0.0.6 per cent .Fe.69.5.62.65.66.5.65.5.66.9 per cent Specification 640,457 is referred to
Patent GB-855143-A (GB)
Title: Improvements in or relating to kettles fitted with an audible warning device
IPC: A47J27/212
Filed: 1958-11-07
Abstract: 855,143. Kettles. CHOI, W. K. March 12, 1959 [Nov. 7, 1958], No. 35827/58. Class 66. A whistling kettle has a spout 12 closed by a plastics cover apertured at 22, a metal diaphragm with aperture 21 being secured by a screw 18 engaging in a boss 19 formed on the cover. A spring 27 mounted on a pin 25 returns the cover to its closed position, the cover being pivoted on the pin 25 by means of apertured ears 26. A bracket 24 comprising spaced plates and riveted to the spout has apertures through which the pin 25 passes. One end of a lever 28, which extends through an aperture 30 in the kettle handle 13, is connected by a pin 29 to an extension 26 of the cover, so enabling a person holding the handle 13 to pull back the lever 28 to remove the cover against the action of its spring, Fig. 2 (not shown).
Patent GB-881262-A (GB)
Title: Improvements in or relating to the attachment of coupling members to torque-transmitting tubular shafts, and to the tubular shafts and attached coupling members resulting therefrom
Inventor: BASTOW DONALD
IPC: F16D3/84
Filed: 1958-11-10
Abstract: 881,262. Making universal joints; assembling force fits. BIRFIELD ENGINEERING Ltd. Nov. 9, 1959 [Nov. 10, 1958], No. 35945/58. Classes 83 (2) and 83 (4). A method of attaching a coupling member to a torque-transmitting tubular shaft comprises surrounding the end of the tubular shaft with a circular collar of greater wall thickness than that of the shaft and forcing a spigot portion of the coupling member into the surrounded end of the tubular shaft by means of a force fit whereby the coupling member, tubular shaft and collar are firmly held together, the tubular shaft and/or spigot portion being initially so formed that relief is provided between them and/or between the tubular shaft and the collar. In one embodiment the coupling member 1 is a yoke member of a universal joint and is made of pearlitic malleable cast iron. The tubular shaft is of mild steel, aluminium or titanium or alloys thereof and is provided with flutes 3. The mild steel collar 4 has a wall thickness three times greater than the tubular shaft and is longer than the spigot portion 5 of the yoke member 1 which has an interference fit in the tubular shaft of approximately 0.015 inch and is of three lobed shape in cross-section. The lobes fit between the flutes in the shaft. A stationary guard 7 mounted on a ball-bearing may be provided for the shaft and universal joint as shown in Fig. 3. In another embodiment the spigot portion 17 of the yoke member 1 is of circular cross-section and is provided with a pair of diametrically opposed arcuate recesses 18 (Fig. 6). Specification 876,593 is referred to.