baber/WOPTO huggingface dataset:
Patent GB-1024174-A (GB)
Title: Improvements in or relating to vehicles
Inventor: WILLIAMS GEOFFREY HUGH
IPC: B60V1/00
Filed: 1961-11-16
Abstract: 1,024,174. Air cushion vehicles. VICKERS Ltd. Nov. 7, 1962 [Nov. 16, 1961; June 1, 1962], Nos. 41078/61 and 21335/62. Heading B7K. An air cushion vehicle comprises a band of flexible material having top and bottom runs for enclosing the air cushion, the top and bottom runs extending in the front to rear direction of the vehicle and the bottom run of the band serving to bear on the surface over which the vehicle travels, there being means for locating the vehicle body relative to the band in the front to rear direction, means for driving the top run of the band forwardly relative to the bottom run thereby to propel the vehicle forwards, and sealing means for minimizing or preventing leakage of air from the cushion enclosed by the band from the lateral sides of the band. A vehicle 1 (Fig. 1, not shown) is provided on its base with rollers 3 which bear on the upper run of a continuous band 5, the supporting air cushion 2 being formed between the upper and lower runs. End rollers 7 maintain positional relationship between the vehicle body and the band 5 and the rollers 3 are driven to apply a track-laying drive to the band. The sides of the body are extended downwardly (Fig. 6, not shown) by hollow side members 14 formed with nozzles 16 and supplied with air from an air compressor (not shown) to form air curtains 17 which minimize or prevent lateral escape of air from the cushion 2. In an alternative construction air is supplied to the space between the underside of the body and the top run of the band to form a supplementary air cushion, escape of air from the lower cushion being prevented partly by air curtains and partly by flexible shirts. In a further embodiment a driving band over the rollers 3 is in driving contact with the top run of band 5 and in a still further embodiment the sides of the cushion space 2 are fully enclosed by flexible shirts attached to the inner face of band 5, the free edge of the shirt being provided with slides which engage a peripheral groove in a side frame.
Patent GB-968774-A (GB)
Title: Purification of mercaptobenzothiazole
Filed: 1962-10-31
Abstract: Mercaptobenzthiazole is purified by dissolving it in alkaline solution and adding a soluble aldehyde, whereupon the tarry impurities are precipitated and removed.  Suitable water-soluble aldehydes are formaldehyde, acetaldehyde, paraformaldehyde, paraldehyde, furfural, chloral, chloral hydrate, crotonaldehyde and aldol. Water insoluble aldehydes, such as benzaldehyde, cinnamaldehyde, n-heptaldehyde, and isobutyraldehyde, are effective when polar solvents are used in which they are soluble. Normally formaldehyde is used, in amount from .25-5% by weight of the mercaptobenzthiazole, and the alkali is caustic soda, of pH 9 to 10.8, at temperatures between 0 and 55 DEG C.  Agglomeration of the precipitate is hastened by agitation or air blowing of the mixture after addition of the aldehyde.  The product may subsequently be oxidized to benzothiazyl disulphide.  Examples compare the effects of this and other methods on a batch of impure mercaptobenzthiazole obtained from the reaction of aniline with CS2.
Patent GB-1529867-A (GB)
Title: Impregnating protein-based materials with polyisocyanates
IPC: C14C11/00
Filed: 1975-10-08
Abstract: 1529867 Impregnating protein based materials BAYER AG 8 Oct 1975 [9 Oct 1974] 41210/75 Heading D1P A process for impregnating protein-based material in the form of sheets, e.g. leather or collagen fleece comprises applying to the material a solvent-free mixture comprising 20-99% of at least one involatile (defined) polyisocyanate and from 1-80% by weight, of a selected involatile (defined), viscosityreducing, non-migrating liquid organic plasticiser for the polyisocyanate. The mixture may be applied as an emulsion in water by spray coating, printing or plush-coating. The isocyanate compound, which may be aliphatic, cycloaliphatic, araliphatic, aromatic or heterocyclic, may be applied unmodified or modified e.g. by reaction with water and/or a preferably high molecular weight compound containing at least two isocyanate-reactive hydrogen atoms, such as polyesters, polyethers, polythioethers, polyacetals, polycarbonates or polyesteramides. The plasticiser is free from hydroxyl and amino groups, and may be a leather greasing agent, a chlorinated paraffin hydrocarbon, a phenol ester of a long chain sulphonic acid, a phthalic or phosphoric acid ester, a monocarbonylic acid ester, a dibenzyl ether or a chlorinated aromatic hydrocarbon. The isocyanate compound may be pre-reacted with 1-20 mol % of an organic dye which contains isocyanate-reactive groups. In Examples 1 and 2, a NCO prepolymer formed by reacting a dehydrated polypropylene glycol ether (MW 2,000) with a six-fold excess of 1, 6-hexane di-isocyanate and plasticised with dibutyl phthalate or a compound of formula RSO 2 OPh in which R is an alkyl mixture (10-18C) is applied to leather e.g. by spraying or plush coating followed by a nitro-cellulose emulsion lacquer or polyurethane lacquer dressing. In Example 3 the reaction product of an 80:20 by weight mixture of 2, 4- and 2, 6-tolylene di-isocyanate and a polyester of adipic acid, 1, 6-hexamethylene glycol and 2, 2-dimethyl- 3-propane diol plasticised with dioctyl phthalate is applied to buffed upper leathers, grain leathers and split leathers which are subsequently surface coated with pigment dispersions and aqueous acrylate or butadiene-based polymer dispersions and nitro-cellulose emulsion lacquers or reactive polyurethane dressings e.g. by pneumatic spray gun, airless spray gun, coating machine or printing machine to provide softness and resistance to water penetration. Sheepskin and pigskin may also be treated.
Patent GB-993751-A (GB)
Title: Process of carrying out continuous dough fermenting operations
IPC: A21D8/04
Filed: 1962-10-31
Abstract: In carrying out continuous fermentation of a pre-dough (starting dough) a pre-dough is prepared by mixing unfermented dough components, water and fermentative micro-organisms, the pre-dough is subjected to fermentation, during the fermentation additional amounts of pre-dough components are continuously added to the pre-dough and fermented dough is withdrawn at the rate of addition of the components, and the micro-organisms are separated from their culture medium prior to their addition to the pre-dough components, are added to the pre-dough during its fermentation continuously and are distributed throughout the entire fermentation.  The micro-organisms may be yeast and/or acid-forming bacteria such as Lactobacillus plantarum and Lactobacillus brevis.  Thus, in doughs for preparing rye bread and mixed rye-wheat bread, the proportion of hereto fermentive acid-forming bacteria used is preferably increased with respect to the yeast when there is an increase in the fermentation temperature, the bacteria being used either in preponderant quantities or exclusively at fermentation temperatures at or above 35 DEG C., whereas mainly homo fermentative acid-forming bacteria may suitably be utilized in making bread or baker's ware from wheat with the aid of sour-dough fermentation.  Doughs for making bread or baker's ware from wheat prepared by means of yeast may contain no flour or relatively little amounts of flour.  The acid-forming bacteria are used in an amount of up to 3.0% based on a dry content of the bacteria of 30% relative to the amount of flour being processed; the acid-forming bacteria are introduced into the fermentation apparatus in such an amount that the percentage amount of bacteria divided by the quotient of the amount of flour in grams charged per hour and the amount of flour in grams contained in the fermentation vessel is between 0.5 and 10.  The pre-dough may additionally include propionic acid bacteria or other micro-organisms having fungicidal activity.  The fermentation vessel, which may have a cylindrical or downwardly tapering shape, is provided with means for introducing the micro-organisms and for feeding the other components required for preparing the dough, discharge means for the dough formed, a stirrer, an air supply and a temperature control. Examples are directed to the continuous fermentations of pre-doughs based on rye flour with hetero fermentative lactic acid bacteria, pre-doughs based on wheaten flour with compressed baker's yeast alone or together with homo fermentative lactic acid bacteria, and pre-doughs free from flour with yeast.  Other dough components mentioned are salt, sugar, malt flour, shortening and dried milk.  In certain experiments the amounts withdrawn from the fermentation vessel in a given time are somewhat lower than the amounts added, due to losses during fermentation.
Patent GB-966594-A (GB)
Title: Improvements in or relating to methods of manufacturing semiconductor devices
IPC: C22C11/00
Filed: 1961-11-17
Abstract: An alloy used in the manufacture of semi-conductor devices (see Division H1) consists of 89.75% by weight lead, 5% tin, 5% antimony and 0.25% gallium.  Specification 951,648 is referred to.
Patent GB-1091416-A (GB)
Title: Improvements in colour reproduction
IPC: C25D13/00
Filed: 1964-10-09
Abstract: 1,091,416. Electrophotographic materials. MINNESOTA MINING & MANUFACTURING CO. Oct. 9, 1964 [Oct. 9, 1963], No. 41426/64. Heading H1K. [Also in Division G2] A sheet for the preparation of electrophotographic colour images (see Divisions G2-G3) comprises a mosaic of laterally situated photoconductive particles, each of which is mixed with either (a) a red light sensitizer and a chemical which forms the colour cyan on development; (b) a green light sensitizer and a chemical which forms magenta; or (c) a blue light sensitizer and a chemical which forms yellow. The sheet normally contains all three colour types of particles, but may contain only one or two types. Many red, green and blue light sensitizers are specified. The colour precursors are preferably colour couplers which yield azo dyes (e.g. by reaction with a diazo compound, or with a primary aromatic amine in the presence of nitrous acid), or which yield dyes on treatment with a developer and an oxidizing agent; many colour precursors, developers and oxidizing agents are specified. Photo-conductors mentioned are anthracene, selenium, zinc oxide, indium oxide, cadmium sulphide, lead sulphide, and mercuric oxide. The photo-conductive layer preferably contains a resinous binder (e.g. styrene/butadiene copolymer, polystyrene, chlorinated rubber, polyvinylidene chloride and polyvinylbutyral), and is backed by a metal film which may be supported. In the manufacture of the photoconductive layer the respective sensitizers and colour precursors may be added to suspensions of photo-conductor particles in binder-solvent mixture. Inert fillers such as titanium and barium sulphate may be added to the dispersions. Considerable detail is given of methods of applying the respective dispersions to the support. (Some methods may yield a random mixture of the different compositions, others given plates in which the compositions are arranged in lines, in spot patterns &c.) Alternatively, the dispersions may be spray dried and a solvent damped support dipped into a mixture of the photo-conductive beads thus formedthe beads are then softened by solvent and heat and pressed into a smooth surface. In other methods a zinc oxide coating may be selectively coated with the respective sensitizer-colour precursor mixture by conventional printing or electrophotographic methods.
Patent GB-1586792-A (GB)
Title: Pyrroles which are substituted in the 3-position and unsubstituted in the 2- and 5-positions and their manufacture
IPC: C07D207/335
Filed: 1977-10-06
Abstract: Novel pyrroles of formula I which are substituted in the 3-position and are unsubstituted in the 2- and 5-position are prepared by reacting 2,5-dialkoxy-tetrahydrofurans, suitably substituted in the 4-position, with a primary amine. The amino group is introduced with simultaneous elimination of water and of compounds of formula R<4>OH. The symbols in formula I have the meaning given in Patent Claim 1. The pyrroles are obtained in good yield and good purity. The end products which may be prepared by the process of the invention are valuable intermediates for the preparation of pharmaceuticals, dyes and crop protection agents. <IMAGE>
Patent GB-1202576-A (GB)
Title: Silver recovery process
Inventor: USHIYAMA KINJI
IPC: G03C11/24
Filed: 1967-09-12
Abstract: 1,202,576. Silver recovery process. SUMITOMO KIKAI KOGYO K.K., and FUJI SHASHIN FILM K.K. 12 Sept., 1967, No. 41625/67. Heading C1A. Silver halide is recovered from a solution which also contains organic matter, e.g. a washing solution produced in the manufacture of photographic materials, by subjecting the solution to treatment with an active sludge (defined as river sludge containing soil bacteria which have been cultured for a time using N- and P-containing nutrients) to oxidize the organic matter, and absorbing the silver halide on the active sludge, whence it is recovered after precipitation of the halide plus sludge. The initial solution, which may contain silver bromide, chloride, chlorobromide or iodobromide, is poured into a chamber containing active sludge, and air is passed for 3 to 5 hours, both to stir the mixture and to provide an oxygen content of more than 2 p.p.m. 70-80% of the halide is adsorbed on the sludge and the remainder of the Ag is recovered from the gelatine-free solution by means of a coagulant such as Al 2 (SO 4 ) 3 . A flow process is described.
Patent GB-1389883-A (GB)
Title: Eyposure time control circuit for a camera
IPC: G03B7/093
Filed: 1972-09-07
Abstract: 1389883 Camera exposure control ASAMI KOGAKU KOGYO KK 7 Sept 1972 [7 Sept 1971] 41632/72 Heading G1A [Also in Division G2] In controlling the shutter speed of a camera, an electric signal representing the required exposure time is compared with a plurality of reference voltages simultaneously in respective comparators 5 and that one of a plurality of timing circuits 9 which corresponds to the highest reference exceeded is activated to control the shutter drive 11. A signal proportional to light intensity is formed by a CdS resistor 1 and the film sensitivity and aperture are set on a potentiometer 4. Diodes (D1, D2) Fig. 2 (not shown) logarithmically compress the signals which are then differentially amplified (at 12) before feeding to the comparators 5. The reference voltages are tapped from a chain of equal resistors Fig. 3 (not shown). The highest level exceeded at the moment when the shutter release is operated is held at 8 by closure of a switch (21) Fig. 6, (not shown). This level is indicated on a respective one of lamps or light emitting diodes 10 and selects one of a plurality of resistors for connection to an R.C. timer circuit Fig. 8, (not shown) to actuate the shutter drive 11 of a through-the-lens reflex camera. For use with other types of camera, the holding arrangement 8 may be omitted.
Patent GB-920508-A (GB)
Title: Improvements in or relating to book binding machinery
Inventor: THOMPSON JACK EVANS
IPC: B42B5/10
Filed: 1959-12-08
Abstract: 920,508. Feeding webs. R. D. H. THOMPSON & CO. Ltd. Nov. 30, 1960 [Dec. 8, 1959], No. 41769/59. Class 100 (1). [Also in Groups XI and XV] In a bookbinding machine (see Group XV) for binding books, pamphlets, and the like by separate rings of flexible material passing through registering holes in the pages of the book, tapes 18 of polyvinyl chloride or polyethylene are fed upwardly from reels 17 corresponding in number to the number of holes in the book edge to a position beneath the book for forming said rings. The tapes pass over guide blocks 19 provided with non-return pawls 23 between the side walls 25 of gripper members which reciprocate along grooves in the plate 24 to feed the tapes forwardly, and are engaged at their upper ends by brake rods 32 mounted on a shaft 33 and having spring-loaded buttons 34 at their lower ends. The grippers comprise channel-shaped members having L-shaped side walls 25 mounted on a reciprocable shaft 26, a spring-loaded finger 30 being mounted between the side walls of each gripper on the shaft 26, to press against the tape passing therebeneath. The tapes are unwound from the reels by a swinging bar 37 and the brake rods lifted to disengage the tapes prior to feeding. The free ends of the tapes which are fed forwardly beneath the book are cut off by a reciprocating knife 42 and the ends of the tapes flattened against the plate 24 to facilitate further feeding by air blown through pipes 39b.
Patent GB-875102-A (GB)
Title: Coloured triangles relating to table games
IPC: A63F9/00
Filed: 1959-12-09
Abstract: 875,102. Counter games. BACON, J. H. B. Dec. 9, 1959, No. 41804/59. Class 132(2). Pieces made from plastic, plywood or cardboard are in the shape of equilateral triangles and are, red, blue, green, yellow,  orange, purple, black or white on the face side. There are nine pieces of each of the  colours and all are white on the reverse - side. A table game is played by placing the pieces face down in a pool",the players then picking a specific number of Pieces and making up prearranged patterns. A container for the pieces comprises a three-sided member in which slides` a trough for holding the pieces. A stand for supporting the pieces in use is provided.
Patent GB-1092678-A (GB)
Title: Improvements in armour-piercing projectiles
IPC: F42B12/06
Filed: 1965-10-01
Abstract: 1,092,678. Armour - piercing projectiles. BREVETS AERO-MECANIQUES S.A. Oct. 1, 1965 [Oct. 8, 1964], No. 41832/65. Heading F3A. An armour-piercing projectile comprises a core 1 of sintered metal or alloy such as tungsten carbide and an envelope of light-weight material such as aluminium alloy. The envelope is made in two parts 2, 3 which may be screwed together. In the forward end of the core is a conical recess 4 having an edge 5 with a diameter not greater than half the maximum diameter of the core. The core may be glued to the envelope with an ethoxyline resin and its base 13 may be concave. The cone wall may be perpendicular to the coned peripheral wall 15 of the nose of the core. An incendiary charge may be placed within the nose of the projectile and a tracer or incendiary charge in the base. The projectile has a driving band 8 of copper, iron or soft steel. Particular values of the angles A and B defining the coned surfaces and of the diameters d and D, are given for a projectile of 20 mm. calibre.
Patent GB-1522503-A (GB)
Title: Brushes for electric machines
IPC: H01R39/24
Filed: 1975-10-14
Abstract: 1522503 Brushes for electrical machines MORGANITE ELECTRICAL CARBON Ltd 13 Jan 1977 [14 Oct 1975] 42011/75 Heading H2A A brush similar to that of Specification 1,369,835 has the conductive fibres 12 arranged on side faces of the brush (rather than on leading and/or trailing faces) along at least an edge of such faces.
Patent GB-1076378-A (GB)
Title: Improvements in or relating to photosensitive silver halide emulsions
IPC: C07D295/13
Filed: 1965-10-05
Abstract: Polymers of the formula <FORM:1076378/C3/1> and copolymers represented by the general formula <FORM:1076378/C3/2> wherein R1 and R2 are each hydrogen or methyl; x and y are integers; n is 1-3; and Z is .CONH2, O.CO.CH3, COOCH3, or a 2-pyrrolidone-ly or morpholino-carbonyl group, are used in photographic applications. The polymers and copolymers are prepared by polymerizing the appropriate monomers and comonomers in the presence of catalysts such as ascorbic acid/hydrogen peroxide, azobisisobutyronitrile and potassium peroxide.  Specified comonomers are vinyl acetate, methyl acrylate, acrylamide, vinyl pyrrolidone and acryloyl morpholine. Polymerization may be effected in water, aqueous isopropanol or dimethylformamide. The polymeric product can be isolated by dialysis and subsequent freezing.ALSO:N-morpholino methylacrylamide is prepared by reacting acrylamide with formalin, hydroquinone, and morpholine; N-morpholinoethyl acrylamide by reacting ethyleneimine with morpholine and reaction of the morpholino ethylamine so prepared with acryloylchloride; and N-morpholino propyl acrylamide by reacting acryloylchloride with N-aminopropyl morpholine. Corresponding derivatives of methacrylamide may be prepared in a similar manner.
Patent GB-1271347-A (GB)
Title: Nuclear reactor installations
IPC: G21C9/02
Filed: 1970-09-03
Abstract: 1,271,347. Controlling reactors. SIEMENS A.G. 3 Sept., 1970 [5 Sept., 1969], No. 42320/70. Heading G6C. The power output of a reactor is controlled by common drive means coupled to a bank of control rods to move them axially so as to change their degree of insertion in the reactor core, but rapid reduction of the power output is achieved, when required, by causing a control rod of the bank to be moved axially, at a rate which is high in comparison with that at which the common drive means move the control rods of the bank, from a withdrawn position of the bank to a fully-inserted position, whilst other control rods of the bank remain in the withdrawn position. The reduction in power output may be required because of a failure of a main coolant pump, or because of load shedding or sudden reductions in load. More than one of the control rods of a bank may be rapidly inserted, and this insertion may take place by automatic actions or manually. A control rod which has been rapidly inserted is withdrawn, shortly after having been inserted, at a selectively variable speed, and the common drive means are used to move the other control rods of the bank to bring the power output of the reactor to a desired level.
Patent GB-1147113-A (GB)
Title: Metallic support members for insertion and sealing into glass
IPC: H01J29/02
Filed: 1967-09-18
Abstract: 1,147,113. Glass-metal seal. CORNING GLASS WORKS. 18 Sept., 1967 [27 Sept., 1966], No. 42360/67. Heading C1M. The metal support member 11 for insertion into and sealing into the face plate 17 of a television picture tube as disclosed in Specification 830,433, has a support portion 11a to support an electronic element and a glass insertion portion 11b of frusto-conical configuration with a cylindrical cavity 12 and an outer surface 14 tapering towards the inner surface 13 at an angle B in the range of 14 to 20 degrees to form an annular rim 15. The optimum angle is given as 18 degrees to give the best sealing conditions, with a small fillet of glass 18 extending up the wall surface 14.
Patent GB-972410-A (GB)
Title: System for storing articles in storerooms and the like
IPC: A47B53/02
Filed: 1962-11-09
Abstract: 972,410. Selective retrieval storage systems. ELECTROLUX A.B. Nov. 9, 1962 [Nov 10, 1961], No. 42363/62. Heading B8E. A storage system of the kind in which goods are stored on movable intercoupled trolleys which may be separated into two groups by breaking one of the couplings, the two groups then being moved apart to provide an entry space between them, is characterized by the means for moving the trolleys. This means comprises an electric motor which is mounted on one of the trolleys t, the other trolleys a to s being motorless but fitted with control cables which are connected to means for controlling the motor on trolley t, so that the latter's movements may be controlled from any of the other trolleys. The control cables terminate in switches 24, 25, 26 on each trolley a to s for effecting leftward movement, rightward movement and emergency stop respectively of the motorized trolley t. All the trolleys have handles 28, Fig. 4, by which their couplings may be broken. The motor on trolley t rotates a sprocket 2Q which may engage directly, as in Fig. 3 (not shown), a fixed chain 17 or, as in Fig. 4, may have the chain 17 passed over it and under two idler wheels 21, 22.