baber/WOPTO huggingface dataset:
Patent GB-716192-A (GB)
Title: Improvements in or relating to the manufacture of interpolymers of styrene with polyhydric alcohol esters of unsaturated fatty acids
Inventor: WAKEFORD LESLIE ERNEST
IPC: F02C9/30
Filed: 1951-08-17
Abstract: Interpolymers are prepared by heating styrene, or a nuclear alkyl or halogen substituted styrene with the ester-forming constituents of a polyhydric alcohol ester of one or more fatty acids of non-drying, semi-drying or drying oils, at a temperature at least sufficient to effect esterification and maintaining the reaction mixture at or above the esterification temperature at least until a substantial degree of esterification and interpolymerisation has taken place. The fatty acids, at least one of which contains ethylenic diene or triene unsaturation may be those in naturally occurring vegetable or marine oils, or synthetic acids obtained from dehydrated castor, or isomerized linseed oil, or by the modification of naturally occurring oil acids may be with or without one or more polybasic carboxylic acids.  The water of the esterification reaction may be azeotropically distilled with styrene which is then returned to the reaction chamber.  The styrene may be added continuously or intermittently and the reaction may take place in a solvent, e.g. xylene, toluene, and white spirit.  Modifying agents such as a short chain unsaturated acid, e.g. acrylic or cinnamic acid, terpenes, e.g. dipentene, and sulphur, a -methyl styrene, sulphur dioxide, oxygen or quinone derivatives and catalysts, e.g. t-butyl hydroperoxide and ditertiary butyl peroxide may be present. Hydroxylated fatty acids, e.g. castor oil acids, may be dehydrated simultaneously with the esterification and interpolymerization reaction.  Polyhydric alcohols mentioned are glycerol, ethylene glycol, pentaerythritol, mannitol and sorbitol and polybasic acids may be phthalic, maleic, fumaric, glutaric, and adipic acids. Examples show the copolymerization of styrene by adding at once or over a period to (a) mixtures of dehydrated castor, linseed or soyabean oil fatty acids with phthalic anhydride and glycerol, (b) raw castor oil, phthalic anhydride and glycerol at a temperature at which dehydration and esterification occur simultaneously, (c) sunflower oil fatty acids, phthalic and maleic anhydrides and glycerol, and (d) linseed monoglyceride and phthalic anhydride or by adding styrene and a -methyl styrene to linseed oil fatty acids, pentaerythritol, and dipentene, Driers, e.g. cobalt and lead salts may be added to give an air-drying, and urea-formaldehyde resins to give a stoving, coating composition. Specifications 573,809, 573,835, 580,912, 621,542, 640,832, 672,224, 675,761, 688,755 and 711,538 are referred to.
Patent GB-391646-A (GB)
Title: Improvements in or connected with glazed tiles, pottery and the like
IPC: C04B41/86
Filed: 1932-07-11
Abstract: The body of a pottery article is formed from a ground mixture of 72 parts of china-pitchers, earthenware pitchers, tiles, silica bricks, or sand, 52 parts of clay (such as ball-clay, china-clay or fireclay), 1 1/4 parts of fusible material (e.g. boracic acid), and 8 parts of silicate of soda of density 140 DEG  Tw.
Patent GB-1136958-A (GB)
Title: A weighing machine with optical projection
IPC: G01G23/32
Filed: 1966-05-04
Abstract: 1,136,958. Optical projection apparatus. MAATSCHAPPIJ VAN BERKEL'S PATENT N.V. May 4,1966 [May 8,1965], No. 19617/66. Heading G2J. [Also in Division G1] A weighing machine is provided with an optical system which projects on to a screen the image of any one of a plurality of data scales which are arranged at different distances from the screen between a light source and at least one lens, the optical system being such that the required scale is focused on the screen without the necessity of having to move the lens(es), the scales or the screen towards or away from each other. In one embodiment, a number of scales 7 separated and sandwiched by glass plates 4, 6, are arranged with a corresponding number of lenses 3, 3' between a frosted glass screen 5 and a light source. The lenses are each positioned to focus a different one of the scales 7 on to the screen 5 and a slidable diaphragm 9 is movable to block the light from the source to all but one of the lenses to ensure that only one scale 7 at any one time is focused on the screen 5. In an alternative embodiment, one lens (3") only Fig. 3 (not shown) is positioned between the screen (5) and a plurality of scales (7) and one or more parallel-sided glass blocks (10) are selectively positionable between the lens (3") and the screen (5) to focus accordingly one of the scales (7) on the screen (5). In a further arrangement cut-off diaphragms (9) act on the screen (5) instead of on the lenses (3, 3').
Patent GB-478321-A (GB)
Title: Improvements in or relating to pistons or piston packings
IPC: F15B1/027
Filed: 1936-07-15
Abstract: 478,321. Pistons. CARPENTER, G., and ELECTRIC HOSE & RUBBER CO., Ltd. July 15, 1936, No. 19623. [Class 122 (i)] A piston of rubber &c. for pumps &c. comprises a double cup member having a central flange secured to the piston rod. The flange 9, Fig. 3, which may be reinforced by a metal &c. disc 10 is clamped between two washers 4, 6, spaced apart by a ring 8, which prevent excessive distortion of the flange. In an alternative construction, Fig. 5, the flange is of a hard and inflexible composition and is provided with a boss 9c into which the rod 3 is screwed and secured by a lock nut 7a.
Patent GB-1384982-A (GB)
Title: Process for preparing nomega-acyl basic amino acids
IPC: C07C231/00
Filed: 1973-04-25
Abstract: 1384982 N-acyl basic aminoacids AJINOMOTO CO Inc 25 April 1973 [25 April 1972] 19700/73 Heading C2C  An N<SP>#</SP>-acyl basic amino acid is prepared by heating a carboxylic acid salt of a basic amino acid at 100‹-250‹ C., e.g. in molten state or in the presence of an organic solvent boiling above 100‹ C. at atmospheric pressure, immiscible with water and capable of forming an azeotrope with the water of reaction. Examples prepare N#- lauroyl-lysine, N#-acetyl-lysine and N#-benzoylornithine. Other suitable reactant components, including Nα-C 1-4 -alkyl-substituted basic amino acids, are specified. In a comparative example, heating a mixture of lysine with lauric acid at 150‹-170‹ C. gives mainly N,N<SP>1</SP>-dilauroyllysine.
Patent GB-1370515-A (GB)
Title: Vehicle bodies
IPC: B62D33/06
Filed: 1972-04-28
Abstract: 1370515 Vehicle roof lining; vehicle roofs DAIMLER-BENZ AG 28 April 1972 [5 May 1971] 19891/72 Headings B7J and B7B In a vehicle body such as a lorry driver's cab, a roof (comprising a frame having a roof skin stretched over it on the outside) is provided with a head lining 1 in the form of a downwardly-open dish member with downwardly-extending edges 2 at the front, 3 at the sides and 4 at the rear, the front edge 2 being adjacent to but spaced from a front transverse girder 5 of the roof frame and having at least one cut-out 11 therein, and a section 6 projecting forwardly underneath the front girder 5 from the bottom of the front edge 2 at substantially the level of the underside of the girder 5. The cut-outs 11 serve as access apertures for a storage space 10 between edge 2 and girder 5, and/or as mounting apertures for additional instruments such as a radio. The section 6 may be connected to the girder 5 at 7 or may be extended and held by a rubber glazing member 9 which retains the windscreen 8. The rear edge 4 abuts the front surface of a rear transverse girder (20), Fig. 4 (not shown), of the roof frame, and the side edges 3 are fixed to side girders (15), Fig. 2 (not shown), which form the upper parts of respective side door frames. Flaps covering the cut-outs 11 may be fixed to the lining 1 and sun visors may be swivelably mounted at 13, both flaps and visors being mounted at bent-out pieces integral with the lining 1. Interior lighting equipment may be received by an aperture 33 in the rear edge 4. The lining between its edges may be provided in region 30 with stiffening ribs 31 extending longitudinally of the vehicle and embossed upwardly, and with perforations 32. If the roof skin has a hatch therein, the lining 1 has a corresponding cut-out 24 with bent-up edges 251 which may be joined to the edges (28), Fig. 6 (not shown), of the roof skin (26) surrounding the hatch by a sealing strip (29).
Patent GB-639381-A (GB)
Title: Improvements to dry plate rectifiers and photocells
IPC: H01L21/14
Filed: 1948-07-26
Abstract: 639,381. Dry-contact rectifiers. CHAMBERLAIN, J. July 26, 1948, No. 19898. [Class 37] A process for making dry-plate rectifiers or photo-cells comprises subjecting the rectifier plate to ultra-sonic vibration for any period of time between the commencement of deposition of the counter-electrode and the completion of the forming process.
Patent GB-911330-A (GB)
Title: Improvements in manufacture of carbon black
IPC: C09C1/50
Filed: 1960-06-07
Abstract: In the furnace production of carbon black from a high molecular weight aromatic hydrocarbon, an alkali metal hydroxide or salt is introduced into the furnace chamber upstream of the carbon black production zone in an amount of 0,00001 to 0,15 U.S. per gallon of hydrocarbon make.  The hydrocarbon make has a mean molecular weight of 100-400, an aromatic content of 65-100%, and a "UOP characterization factor" of 9-10,9.  Alkali metal salts specified are sodium chloride, triphosphate, tetraborate, and metasilicate, potassium iodide and thiocyanate, and caesium chloride.  Sodium hydroxide may be used in an amount of 0,0001-0,05 lb. per gallon of hydrocarbon make.  Potassium hydroxide may be used in an amount of 0,00001-0,03 lb. per gallon of hydrocarbon make.  The combustion gases may be injected tangentially into the furnace chamber.  The make hydrocarbon may be injected tangentially or radially with or without a fluidizing gas, e.g. steam.  The make hydrocarbon may be mixed with pressurized water of a temperature above 100 DEG C.  The alkali metal compound may be employed as a solution in water or oil. It may be introduced independently as an axial stream or together with the hydrocarbon make, fluidizing steam, or combustion gases. The make hydrocarbon may be preheated to a temperature of 200 DEG -700 DEG F. The carbon black may be produced at a temperature of 2200 DEG -3000 DEG F.  Specifications 715,713, 723,190, 763,159 and 834,634 are referred to.
Patent GB-971979-A (GB)
Title: Improvements in cold caustic refining of cellulose
IPC: D21C9/08
Filed: 1963-05-20
Abstract: In the cold caustic purification of cellulose, there is included in the caustic solution a boron compound selected from the group consisting of sodium metaborate, borax and boric acid, in a proportion sufficient to prevent mercerization of the cellulose. A non-mercerized, cold caustic refined, high alpha cellulose may be made from unbleached or partially bleached cellulosic material, especially wood-pulp, by means of a multi-stage refining process in which the cold caustic refining stage comprises subjecting said cellulosic material to an aqueous caustic solution at a temperature of from 5 DEG C. to 50 DEG C. containing from 10-16% by weight total titratable alkali and 6-28% by weight of a soluble borate compound of the group consisting of sodium metaborate, borax and boric acid, said proportion of borate being expressed as sodium tetraborate. Preferably, a temperature of about 35 DEG C. is used. Such refined cellulose has an alpha content in excess of 96% and is substantially all Cellulose I.
Patent GB-351745-A (GB)
Title: Improved method of and apparatus for recording the directional inclination of bore holes
IPC: E21B47/022
Filed: 1930-07-02
Abstract: 351,745. Borehole clinometers. BURMAH OIL CO., Ltd., 175, West George Street, Glasgow, and EVANS, P., of Rurmah Oil Co., Assam, India. July 2, 1930, No. 20040. [Classes 97 (ii) and 98 (i).] The direction and deviation of a borehole from the vertical are simultaneously recorded by photographically reproducing the position of the needle of an enclosed self-levelling compass upon a sheet' maintained at right angles to the direction of the borehole. In the form of apparatus shown in Fig. 1, the water-tight non-magnetic shell 10, which carries guides 12 and is adapted to be lowered into the borehole 11, encloses a light-tight container 13 for the compass, photographic recording mechanism, and timing mechanism. The compass needle 14 is pivotally mounted above the centre of a transparent disc 15 which closes a conical casing 16 having at its upper end a lamp 18 and suspended from a universal pivot 17. A pin-hole diaphragm 19 and if desired a lens are included in the casing 16. A transparent plate 21 marked with cross lines and a series of concentric circles is secured to the container 13 at right angles tothe axis of the instrument below the compass and immediately above and parallel to the photographic film 22. To enable the instrument to take automatically a series of records clockwork mechanism 24 rotates a spindle 25 carrying a contact arm 33: and toothed quadrant 26. The contact arm 33 intermittently closes the circuit of the lamp 18 to effect the exposures and the quadrant 26 driving: the shaft 28 and rollers 23 intermittently traverses the film 22 across the exposure aperture. To enable the instrument to be synchronized with a clock at the ground surface, an audible signal such. as the bell 39 or a visible signal may be provided in the casing 13. In an alternative form, Fig. 9, the casing 13 is cushioned at its ends by means of sponge rubber in an outer casing (not shown) which latter is adapted to be fitted with guides of different sizes as required. The compass needle 14 illuminated by lamps 18 outside the casing 16 which is provided with rubber buffers 49 and has a filar suspension 47 is photographed through the lens 20. The base 15 of the compass may carry cross wires and concentric rings. The film changing: mechanism and contacts for the lights 18 are driven by the spring drum 55, the film changing mechanism being disconnected from the drive at will by turning a cam 57 acting on a pivoted arm 58 carrying a pinion 56. Timing mechanism 60 controls the sequence of operations through cams 61, 67, 64 and the lever 62. Various forms of compass needle 14 or card are shown and described.
Patent GB-767921-A (GB)
Title: New pyrimidine derivatives
Inventor: HEPWORTH WALTER
IPC: C07D239/30
Filed: 1954-07-09
Abstract: The invention comprises 2-halo-4 : 6-trichloromethyl pyrimidines and the preparation thereof by chlorinating the corresponding dimethyl-2-halopyrimidine.  In an example, 2 - chloro - 4 : 6 - dimethylpyridimine is chlorinated with gaseous chlorine to give the bistrichloromethyl derivative.  Specification 767,922 is referred to.
Patent GB-803462-A (GB)
Title: Improvements relating to hydraulic turbo couplings
Inventor: BILTON JOHN
IPC: F16D33/08
Filed: 1954-07-09
Abstract: 803,462. Hydraulic couplings. FLUIDRIVE PATENTS, Ltd. July 5, 1955 [July 9, 1954], No. 20219/54. Class 69 (2). An hydrodynamic coupling is partially emptied under conditions of excessive load. A coupling suitable for use where the starting torque is low comprises an impeller 6 fast with an input sleeve 1, and a runner 9 fast with an output shaft 11. In the event of the output shaft becoming overloaded working liquid passes beneath a lip 13 of the impeller and discharges through pipes 17 into a reservoir formed by a casing 18 fast with the input sleeve. Liquid is returned to the working chamber by an adjustable scoop tube 19. During normal working liquid is continuously drained from the working chamber through nozzles 21. Couplings for use where the starting torque is normal or high are provided with valves interrupting communication between the working chamber and the reservoir, except through the leak-off nozzles, under starting conditions. The discharge passages may be formed in the runner instead of the impeller. The discharge passages may open into a reservoir casing which may be stationary and associated with a sump from which liquid is returned to the working chamber by a pump and drain ports may be provided which open into a rotatable scoop chamber from which liquid is discharged to a sump. In other embodiments the leak-off nozzles are omitted, the excess liquid supplied to the working chamber being discharged through the discharge passages. Reference has been directed by the Comptroller to Specification 692,286.
Patent GB-1106766-A (GB)
Title: Fluid flow regulators
Inventor: ROBERTSON DAVID MILLAR
IPC: A62B9/02
Filed: 1965-05-13
Abstract: 1,106,766. Fluid-pressure servomotor systems. BRITISH OXYGEN CO. Ltd. May 10, 1966 [May 13, 1965], No.20257/65. Heading G3P. [Also in Division F2] The flow of fluid, such as oxygen, from a source 11 under pressure is controlled by a main valve 14 arranged for movement relative to a seat so that a plurality of orifices 16 therein is progressively uncovered the fluid emerging into a chamber 12 in which it is mixed with an adjustable proportion of secondary fluid, such as air. The valve forms part of a demand regulator in which a diaphragm 29 lifts a pilot valve 24 when the user inhales so that fluid-flow through a restriction 20 causes a pressure difference across the valve 14 which is in the form of a flexible annular diaphragm. The oxygen supply may be supplemented by air drawn through a non-return valve 35 when a lever 39 connected by a spring 38 to a valve lever 36 is freed by a manuallyactuated cam 48. The lever 39 may also be actuated by an aneroid capsule 44 to close a valve 61 to permit the pressure in a space 51 to be raised for "pressure breathing" at high altitudes. A valve 57 limits the pressurization of this space and a valve 76 lifting at a predetermined pressure is provided to ensure that the whole system is set to this pressure when a test button 73 closes a vent 65. "Pressure breathing" is also brought into operation by expansion of an aneroid capsule 66 and pressurization of space 51 may be obtained by connecting a part 50 to the oxygen supply line 12. In a further embodiment, the main valve is offset from the inlet and is actuated by a mechanical linkage from the diaphragm 29 or directly by a diaphragm controlled by the pilot valve. The main valve in these embodiments consists of a flexible member on a perforated frame.
Patent GB-299529-A (GB)
Title: Improvements in or relating to folding seats and gun supports
IPC: A01M31/02
Filed: 1927-08-02
Abstract: 299,529. Boyce, T. P. Aug. 2, 1927. Folding seats combined with gun supports; adjustments; bottoms.-A combined folding seat and gun support comprises an adjustable telescopic spindle 1, 2, folding seat-supporting arms 8 connected to a collar 12, a second pair of seat-supporting members 9 hinged to a collar 12a and having a detachable hook and eye engagement 10, 11 with the seat proper 23, folding legs 3 pivoted to a collar 6<a>, a gun-supporting tripod 17, and a telescopic arm 14 carrying a heel piece 16 for the gun butt. The seat proper may be of canvas or may, as shown in Fig. 3, comprise an annulus formed in two halves, hinged together. The three legs 17, 20 of the gun support, which are in one plane, may be connected by hinged arms 21, and the U-shaped support 18 may be in two halves, hinged together.
Patent GB-531913-A (GB)
Title: Improvements in or relating to the cooling of the exhaust of internal combustion engines
IPC: F01N3/05
Filed: 1939-07-13
Abstract: 531,913. Cooling exhaust. WESTLAND AIRCRAFT Ltd., and PETTER, W. E. W. July 13, 1939, No. 20397. [Class 7 (ii)] An exhaust manifold a for an aircraft engine having a number of cylinders in line is surrounded by an annular chamber d closed at its rear ; cooling air flows rearwards through the chamber d on one side of a partition g, then forwards on the other side of the partition and emerges, after further reversal of direction, at f between the exhaust outlet c and either the wall of the air duct remote from the engine or else the engine cowling. As shown diagrammatically in Figs. 1 and 1a, the rear part a of the manifold is circular in section and the front part b oval and tapered. In modifications, (1) the outlet is behind the centre of the length of the engine ; (2) the manifold has two exit nozzles C1, C2, Fig. 2, the air passing out at f1 around the nozzle C, and at f2 on one side of the nozzle C2 ; (3) the air divides into two streams, one passing out around a forward nozzle and the other on one side of a rear nozzle after two reversals of direction ; (4) the air passes forwards around the manifold and rearwards through a tube k, Fig. 5, before emerging at f on the inner side of the nozzle c ; (5) the air from a forwardly opening duct in a wing of the aircraft passes forward around the manifold, then rearwards on the other side of a partition or through a tube before emerging adjacent to the nozzle c; (6) partitions g, Fig. 8a, are so arranged that the air passes forwards through a passage o, rearwards through a passage p, and forwards again through a passage q terminating near the outlet nozzle ; (7) the outer wall of the airinlet duct has scoops or louvres, say in line with the second cylinder of a line of cylinders, so that additional air may be forced past the remaining cylinders. A construction similar to Fig. 1 is illustrated in fuller detail in Figs. 1 b to 1 i (not shown).
Patent GB-332383-A (GB)
Title: Improvement in or relating to toy and like books, cards or the like
IPC: B05C17/06
Filed: 1929-07-03
Abstract: 332,383. Williams, N. H. E., (known as Bryant, M.). July 3, 1929. Stencils. - A device for the amusement or instxuction of children comprises two cards or sheets hinged together, the front card having portions cut out, so as to form a stencil, together with a supply of silver, tinsel, or other metalcoated paper or foil of various colours, intended to be cut into various shapes and placed behind the stencil to give the effect of a coloured picture. The back card may have markings to assist in placing the metal foil &c., which may then be secured in place by gum &c. The cards may be bound in book form.