baber/WOPTO huggingface dataset:
Patent GB-411501-A (GB)
Title: Improvements in or relating to the production of new compositions of matter by the esterification of cellulosic material
IPC: C08B3/06
Filed: 1932-11-03
Abstract: For the production of a new composition of matter comprising a mass of completely acetylated cellulose throughout which is uniformly distributed superficially acetylated material, which has a core of unacetylated cellulose, cellulosic material is subjected to an acetylating treatment, and when the reaction approaches or reaches a peak temperature additional cellulosic material is incorporated in excess of the residual acetylating agent present.  In an example 100 lbs. of bleached cotton linters, wood pulp or paper are gradually added while stirring to 300 lbs. of acetic anhydride (91--95 per cent), 400 lbs. of glacial acetic acid and 5--10 per cent (calculated on the weight of cellulose) of concentrated sulphuric acid.  The reaction mass is cooled and when the temperature has reached a maximum which should not exceed 35 DEG  C., a further 40 lbs. of cellulosic material is added, and the reaction is allowed to proceed for about 3 hours.  20 lbs. of water is then added with constant mixing and the mixture is allowed to stand at 20--25 DEG  C., for 44 hours or until the completely acetylated material is soluble in acetone.  The product is precipitated with water washed until acid free, stabilized and dried.  The material may be cast into films or pressed into blocks for making sheets, or may be used for thermoplastic moulding compositions.  It yields films with a velvet matt surface, and may be used for laminated glass with a frosted appearance, for electrical insulation purposes or for coating compositions for fabrics, e.g., in the manufacture of artificial leather.
Patent GB-912447-A (GB)
Title: Process for the production of dibenzyl tin dichlorides
Inventor: KLUMP OTTO
IPC: C07F7/22
Filed: 1960-09-08
Abstract: Dibenzyl tin dichlorides which may or may not carry substituents in the benzene nucleus are prepared by reacting tin with benzyl chloride or a benzyl chloride substituted in the nucleus at an elevated temperature and cooling the mixture to precipitate the desired dibenzyl tin dichloride, the reagents being used in proportions of 1 mol of tin to not less than 10 mols of the benzyl chloride. Preferably the tin is finely divided and the mixture is stirred vigourously.  Unreacted tin may be filtered off before cooling to precipitate the product and both it and the excess benzyl chloride may be used in a further preparation. Specification 878,958 is referred to.
Patent GB-969849-A (GB)
Title: Quinone-phosphoric acid addition compounds
IPC: C07C37/07
Filed: 1962-08-07
Abstract: An addition compound of para-quinone and phosphoric acid is described and may be prepared by refluxing p-quinone and phosphoric acid in chloroform.  An example is given.  The product yields a mono- and a di-halohydroquinone on reaction with a halogen acid, e.g. hydrogen chloride.  The addition compound probably contains one molecule of p-quinone and one molecule of hydroquinone per molecule of phosphoric acid.
Patent GB-854199-A (GB)
Title: Improvements in fluidizing conveying apparatus
IPC: B01J8/18
Filed: 1958-09-29
Abstract: 854,199. Pneumatic conveyers. FULLER CO. Sept. 29, 1958 [Nov. 6, 1957], No. 31030/58. Class 78 (1). Apparatus for conveying finely divided material in substantially dry condition comprises a casing 11, to which material is admitted at one end by a hopper 35 and discharged at the other through an aperture 18<SP>1</SP>a, a series of inclined gas-permeable floors 14 on which the material is supported and through which air passes from a plenum chamber 13, a series of vertical partitions 19 each having an opening 19a near its upper edge, a vertical partition 28 which divides each plenum chamber into a major chamber 13a and a minor chamber 13b, an orifice 28a, Fig. 3, in each partition of such size that air passes through the minor floor area 14b at a greater rate per unit of area than through the major floor area 14a, and a vertically adjustable partition 30a mounted in the upper part 12 of each section of the casing approximately above each partition 28. A vertically adjustable curved deflector 30b is arranged in proximity to each partition 30a and is directed towards the opening 19a. If it is desired to elevate as well as convey the material, the apparatus is arranged as shown in Fig. 4 in which the minor floor area 44b of a downstream floor and the adjacent aperture 48a are at higher levels than the minor floor area &c. of the adjacent upstream floor. When material is to be supplied in controlled quantities to a series of kilns 52 ... 55, Fig. 5, a screw conveyer 64a is mounted in an open-topped casing 63 arranged between two sections of each plenum chamber. A material level control device 69 operates control valve 68 to cause inflow of material at the desired rate.
Patent GB-842182-A (GB)
Title: Extension handle for a decorator's paint roller, brush or like appliance
Inventor: LONGFIELD THOMAS
IPC: B05C17/02
Filed: 1957-10-04
Abstract: <PICT:0842182/III/1> An extension handle for a decorator's paint roller or other appliance consists of two arms 1, 8 with hand grips 9, the arm 1 being adapted to have secured to its upper end, the haft of a paint roller or like appliance, the upper end of the arm 8 being pivotally connected to the arm 1 so as to be slidable lengthwise thereof.  Slidable on the arm 1 is a sleeve-like bracket 5 provided with a pair of projecting lugs 6 having secured therein a pin 7 on which is pivoted the arm 8.  The arms may be telescopic. The upper end of arm 1 carries an internally screw threaded sleeve-like bush having an enlarged head 3, to receive the threaded end of the haft of the roller.
Patent GB-708631-A (GB)
Title: Gear pump or motors
IPC: F04C2/14
Filed: 1950-12-21
Abstract: 708,631. Gear pumps and motors. LARGE, T. C. A. Dec. 21, 1950 [Dec. 22, 1949], No. 31127/30. Class 110(2) One gear is adjustable relatively to the other to vary the depth of meshing of the gear teeth, the gear being pressed together by one or more adjustable springs. A fixed gear 1, on a shaft 3, rotates between side plates 4 and 5 and a gear 2, in mesh with the former, is carried by a spindle 14 in arms 12 which may be pivoted about a shaft 8. Curved surfaces 17, 18 are cut from crosspieces 6, 6 1  to act as seals for the tips of the gears on the pressure sides. Each plate 4, 5 has an opening 19 to allow discharge of fluid; a projection 21, on an arm 12, may slide on a surface 20 of the opening. A plate 10 closes off one side of the opening 19, the other side, through a plate 11, leading to a delivery pipe 21<SP>1</SP>. The pump is submerged in fluid. To prevent fluid being jammed, during pumping, relief grooves 23, Fig. 7 (not shown) are provided. A groove 26, (not shown) in the plate 5, allows communication between two tooth spaces, to prevent fluid being trapped during meshing. The meshing of the gears may be secured automatically by means including a spring.
Patent GB-428194-A (GB)
Title: Improvements in centrifugal guns
IPC: F41B3/04
Filed: 1934-11-02
Abstract: 428,194. Centrifugal guns. POWELL, B. F. S. BADEN-, Brooklands House, Riverhead, Sevenoaks, Kent. Nov. 2, 1934, No. 31486. [Class 92 (ii)] Relates to centrifugal guns of the type in which the projectiles f Fig. 2, are discharged through a rotating barrel or barrels c opening out of a cylindrical chamber b concentric with the axis of rotation b<5>. According to the invention, the chamber is continuously circular except where it is tangentially gapped to form the breech of each barrel, and a feed opening is provided for depositing the projectiles against the circular wall in the path of a fixed impeller d which pushes them round the wall and into the breech. The projectiles are guided into the breech by a projecting piece b<3> which is gapped at b<4> to allow the impeller to pass. The projectiles are carried in a rotary magazine e, Fig. 6, with radial spring-fed compartments e<3> and pass into the chamber b through a gap d<2> in a stationary plate d<1> which carries the impeller d. A spring-controlled cut-off d<3> may be provided in the gap. The feed may be controlled by a radially-vaned member g rotated by a wheel g<2> gearing with a worm-like rib g<4> on the interior of the chamber b. Fig. 8 shows a barrel i<1> formed of a bent tube the upper half of the tube being cut away at one end to form the chamber i which receives the impeller depending from the stationary cover plate.
Patent GB-284436-A (GB)
Title: Improvements in ladders and the like
IPC: E06C1/12
Filed: 1926-12-13
Abstract: 284,436. Drew, A. Dec. 13, 1926. Ladders.-An extension ladder is provided with projections F on the rear of the sliding section adapted to be engaged by a pivoted locking bar C on the fixed section, the lock. ing bar being cranked backwards to engage also beneath the rungs of the sliding section. Brackets L are also provided on the fixed section to engage the locking bar, and the actuating rope G loosely engages in an angled extension I of the locking arm to release it from engagement.
Patent GB-362102-A (GB)
Title: Improvements in and relating to the manufacture of bricks
IPC: C04B33/22
Filed: 1930-10-21
Abstract: 362,102. Making bricks. NIELSEN, H., 8; Ovre Slotsgate, Oslo, Norway. Oct. 21, 1930, No. 31631. [A Specification was laid open to inspection under Sect. 91 of the Acts, Oct. 25, 1930.] [Class 87 (i).] The raw wet clay is dried till the moisture content is between 5 and 10 per cent (preferably 7 to 8 per cent), the exact value being adjusted by the addition of moisture. The dried clay is then granulated into grains about 2À5 mm. diameter, moulded under a pressure of about 300 kilograms per square centimetre, and burnt.
Patent GB-1396287-A (GB)
Title: Display devices
IPC: G09F21/08
Filed: 1971-07-06
Abstract: 1396287 Inflatable display K BOWDEN 19 June 1972 [6 July 1971] 31707/71 Heading G5C An inflatable display device, formed from panels of plastics/metal foil laminate, has display matter printed thereon. Internal webs or ties may be provided to give support. The device may be filled with a gas that is less dense than air, in which case it floats in air, or with air. An attachment point for tethering the inflated body may be provided.
Patent GB-899576-A (GB)
Title: Improvements in electric wire supporting devices
Inventor: FILLMORE LEONARD WALTER
IPC: H01B17/16
Filed: 1958-10-06
Abstract: 899,576. Insulators., JACKSON BROS. (LONDON) Ltd. Sept. 24, 1959 [Oct. 6, 1958], No. 31813/58. Class 36. An insulator for supporting a wire comprises an insulating column 10, e.g. of ceramic, having means at one end for fixing to a chassis or other base, and having at the other end a cup 13 or plate carrying wings 12 which form a seat for the wire into which it is secured by soldering or by. crimping. The head is preferably in the form of a metal cap with a pair of wings pressed out from its base, as shown. The body 10 may have a threaded fixing hole in the end 11 (which may be of metal) or alternatively a.projecting stud, for fixing to a base by a screw or nut. It is preferably shaped for engagement by a tool.
Patent GB-734664-A (GB)
Title: Vinyl resin-alkyd resin wrinkle coating composition
IPC: B05D5/06
Filed: 1953-11-17
Abstract: A wrinkle finish coating composition is made by suspending a finely-divided solid vinyl resin in a solution of an alkyd resin having the property of wrinkling with a drier, to form a paste, and mixing the resulting paste as required with further alkyd resin, solvent, drier and colouring material.  The vinyl resin may be polyvinyl chloride or a vinyl chloride-vinyl acetate copolymer and the alkyd resin is preferably an oil-modified glycerine-phthalic anhydride-maleic anhydride resin such as that obtained by heating together 12.28 per cent glycerine, 19.93 per cent phthalic anhydride, 1.15 per cent maleic anhydride, 16.94 per cent linseed oil acids, 23.12 per cent rosin and 26.58 per cent tung oil.  The weight ratio of vinyl resin to alkyd resin is preferably between 1 : 1 and 1 : 10. The solvent of the alkyd resin solution may be xylol and further materials which may be added to the vinyl resin-alkyd resin paste are butanol, toluol, naphtha, cobalt naphthenate, burnt umber, titanium dioxide, calcium carbonate, dicalcium aluminate, dicalcium silicate, magnesium silicate and cobalt blue.
Patent GB-1480459-A (GB)
Title: Gas discharge display panel
IPC: H01J17/49
Filed: 1975-07-30
Abstract: 1480459 Gas discharge display panels BURROUGHS CORP 30 July 1975 [29 Aug 1974] 31818/75 Heading H1D In a gas discharge display panel comprising a a base-plate 20 and a faceplate 100 hermetically sealed together, the base-plate 20 has a number of parallel conductive cathode strips 40 covered by an insulating layer 50 having first apertures therein exposing in a row and column array dotlike cathodes 40<SP>1</SP>, over which is a further insulating covering 80 provided with slots 90 aligned with respective cathode rows, and the faceplate 100 has a number of parallel transparent conductive anode strips 120 orthogonal to the cathode strips 40 and overlying the slots 90, each transparent anode strip 120 being covered by a separate opaque conductive layer 130 having a second series of apertures 140 therein exposing dot-like anodes 120<SP>1</SP> in registration with the dot-like cathodes 401. The further insulating covering 80 may be deposited on the base-plate or may form a separate plate, as shown, and the apertures exposing the dot-like anodes and cathodes may be oval in shape. The apertures 140 exposing the anodes 120<SP>1</SP> may be filled with a phosphor, e.g. zinc orthosilicate : Mu, provided as concentric rings between which the anode electrode is exposed, Fig. 5 (not shown). The cathode strips 40 on the base-plate 20 may be more closely spaced in the centre of the baseplate than at the edges thereof to facilitate the formation of an hermetic seal. By appropriately taking the connections to the respective anode strips, Figs. 7 and 8 (not shown), and cathode strips to the edges of the panel, a number of such panels may be coupled together at their edges to provide a large wall-type display.
Patent GB-1322051-A (GB)
Title: Production of azacycloalkan-2-ones
IPC: C07D227/08
Filed: 1970-07-01
Abstract: 1322051 Azacycloalkan-2-ones AGRIPAT SA 1 July 1970 [2 July 1969] 31851/70 Heading C2C 1 - Formyl - 3 - nitro - azacyclo - alkan - 2 - one compounds of the formula in which A is an alkylene radical having a chain of 4-10 carbon atoms, optionally substituted by at least one C 1 -C 6  alkyl group, are prepared by reacting a cycloalkanone of formula: with (a) a formamide of formula in which R 1  is a C 1 -C 5  alkyl radical; R 2  is a C 1 -C 5  alkyl radical, a cycloalkyl radical, phenyl or benzyl; or R 1  and R 2  together with the nitrogen to which they are attached form a heterocyclic ring which can contain further hetero atoms, and (b) a halide of an inorganic oxy acid; nitrating the intermediate product with a mixture of concentrated sulphuric acid and nitric acid at a temperature in the range - 10 to +30 C., and then hydrolysing the product. Suitable starting oximes are those of cyclohexanone, cycloheptanone, cyclononanone, cyclodecanone, cycloundecanone, and cyclododecanone which may be substituted by one or more C 1 -C 6  alkyl groups. Suitable formamides are, for example, N,N-dimethylformamide; N,N - diethylformamide; N - methyl - N -phenylformamide; N-formyl morpholine and N- formyl piperidine. Examples describe the preparation of 1-formyl-3-nitro-azacycloheptan- 2-one; 1 - formyl - 3 - nitro - azacyclotridecan- 2-one and 1-formyl-3-nitro-azacyclo-octan-2- one.
Patent GB-648179-A (GB)
Title: Improvements in or relating to roller bearings
IPC: F16C23/08
Filed: 1948-12-10
Abstract: 648,179. Bearings. AKTIEBOLAGET SVENSKA KULLAGERFABRIKEN. Dec. 10, 1948, Nos. 32062 and 32063. Convention dates, May 10 and Oct. 29. [Class 12 (i)] In a roller bearing of the type having two rows of rollers 3a, 3b with convexly curved rolling surfaces cooperating with an outer ring 1 having a concave spherical raceway 2 common to both of the rows of rollers, an inner ring 4 with two races 5a, 5b having concavely curved profiles, and a guide ring 7 disposed between the races, the guide ring 7 is axially displaceable and radially centred on a cylindrical surface 6 on the inner ring 4 between the raceways, so as to permit axial displacement of the rollers and maintain them in alignment. The profiles of the rollers and of the races are arcs of circles, and the radii of the profiles of the races may be greater than that of the rollers. The rollers may be symmetrical or unsymmetrical about their central planes and 'contact the races at or near their greatest diameters. Cages 8a, 8b may be provided. Specifications 135,864, [Class 12 (i)], and 376,167 are referred to.
Patent GB-1095899-A (GB)
Title: Automatic lubricating apparatus for an injection piston of a cold-chamber pressure casting machine
IPC: B22D17/20
Filed: 1965-07-27
Abstract: 1,095,899. Lubricating. REGIE NATIONALE DES USINES RENAULT. July 27, 1965 [July 29, 1964], No. 32112/65. Heading F2A. Apparatus for the automatic lubrication of an injection piston of a cold-chamber pressure casting machine, comprises a pump 5 having a variable-stroke plunger-piston secured to a piston 8 which is operated by compressed air through a distributer 11 and a relay valve 16 controlled by a cam 17 connected to the injection piston. The pump 5 is charged with lubricant from a tank 7 and is actuated by compressed air supplied through a conduit 13, a filter 14, a conduit 15, the three-way valve 16, the distributer 11 and a conduit 10. In operation, the cam 17 is actuated by the injection piston at the beginning of its travel and at the end of the return thereof; thus the valve 16 controls the pump 5, via the distributer 11, and lubricant is forced through conduits 4<SP>1</SP>, 4, 3<SP>1</SP>, 3 and a part-circular conduit 2, to points A, B and C on a container 1 which receives the injection piston. Air discharged from the pump 5 returns to the distributer 11 through a conduit 12. The stroke of the plunger piston may be varied by a screw 19 mounted on a rod 9 carried by the piston 8. Lubricant may be drained from the system through a cock 18.
Patent GB-870547-A (GB)
Title: Centrifugal electric switch for governing direct current motors
Inventor: JONES HAROLD HOSGOOD
IPC: H02K11/00
Filed: 1956-10-22
Abstract: 870,547. Centrifugal switches. JONES & CO. (ENGINEERS) Ltd., WALTER. Oct. 18, 1957 [Oct. 22, 1956], No. 32171/56. Class 38 (5). [Also in Group XXXV] A governor for direct-current motors comprises a cup-shaped mounting having a boss 4, to fit on the motor shaft, a disc portion 2 and a peripheral flange 3 directed towards the end cover of the motor. A curved cantilever deflecting spring 13 is rigidly clamped between a metal plate 14 and a boss 15 projecting slightly inwards from the inside of flange 3. It is so proportioned that its natural frequency is removed from the rotational frequency of the motor, and carries a contact 11 which normally engages a contact 12 carried on the end of a shorter spring 17 insulatingly clamped between a plate 19 and a boss 20 on flange 3. Contact 12 is adjustable by means of a screw 22 so that the speed at which centrifugal force causes contact 11 to disengage contact 12 may be preset. The springs 13 and 17 are connected to the segments of a face commutator on which bear brushes (not shown) carried by the end cover of the motor. The cup-shaped mounting is covered by an external cap of the same diameter as the motor housing, perforated for cooling purposes. An aperture 25 in the vicinity of contacts 11, 12 causes suction between the mounting and the external cap and it is stated that dust particles are drawn away from the contact surfaces and tend to settle in the recess 24. The contacts 11, 12 normally short-circuit a resistor in the motor armature circuit, which resistor may comprise a winding on the outer periphery of flange 3.
Patent GB-409783-A (GB)
Title: Improvements in tubes for economizers or feed water heaters
IPC: F28F1/30
Filed: 1932-11-14
Abstract: 409,783. Gilled tubes for heat - exchangers. BABCOCK & WILCOX, Ltd., and DAVY, C. H., Babcock House, Farringdon Street, London. Nov. 14, 1932, No. 32208. [Class 64 (iii).] An economiser or like tube 1 is fitted with removable corrugated sleeves 2 in which the sleeve sections are bonded to the tube by a heat conducting bond 3 in the form of a cement adapted to harden under heat. The cement may contain graphite or carborundum bonded by substances such as water glass or glycerine with or without oils. The sleeves may slide into place and interengage by spigot and socket ends, and the sleeves may comprise semi-annular segments.
Patent GB-506172-A (GB)
Title: Improvements in and relating to the manufacture of photomechanical process printing blocks
IPC: G03F7/04
Filed: 1937-11-23
Abstract: 506,172. Photo - mechanical printing- surfaces. JANKE, A. P., and KAJA COLD BLUE ENAMEL PROCESS CO., Ltd. Nov. 23, 1937, Nos. 32260/37 and 25520/38. [Class 98 (ii)] An enamelling solution for use as an etching resist in photo-mechanical printing contains shellac, or a similar alcohol-soluble resin, a hydroxy-alkylamine and a light-sensitive agent. Mono-, di-, or triethanolamine may be used and the sensitizing may be effected with ammonium bichromate. In examples, the solution comprises (1) shellac, triethanolamine, albumen, and ammonium bichromate, and (2) shellac, triethanolamine, albumen, gelatine, borax, ammonia, caustic soda, and ammonium bichromate. A blue or violet dye, e.g. Crystal Violet may be included. The resulting resist requires no burning in, but may be subjected to moderate heating, e.g. till the blue colour of the dye just disappears. The support may be a metal plate, e.g. of copper, zinc, aluminium, or a magnesium alloy.
Patent GB-434314-A (GB)
Title: Improvements in or relating to laminated glass
IPC: B32B17/10
Filed: 1934-11-09
Abstract: 434,314. Compound glass. AMERICAN WINDOW GLASS CO., Farmers Bank Building, 5th Avenue, Pittsburg, U.S.A.-(Assignees of Monro, W. L.) Nov. 9, 1934, No. 32310. Convention date, Dec. 18, 1933. [Class 140] Laminated glass comprises a sheet 10 of glass, having its inner surface 11 fire polished and its outer surface 12 ground and polished, united to a second sheet 13, having both surfaces fire polished, by a cementing layer 8 preferably having substantially the same reflective index. The cementing layer may be formed by applying a solution of polyacrylic acid ester to the surface of each sheet, drying and uniting ; or it may consist of a sheet of cellulose acetate or cellulose nitrate united by adhesive. The sheet 13 may be thinner than the sheet 11.