baber/WOPTO huggingface dataset:
Patent GB-876696-A (GB)
Title: Process for the production of membrane films of cellulose acetate for electrophoretic separations
IPC: G01N27/447
Filed: 1959-08-04
Abstract: For the production of cellulose acetate films for the electrophoretic separation of mixtures of substances, use is made of a solution of two cellulose acetates having acetyl contents corresponding approximately to a triacetate and a diacetate respectively, the ratio of the concentration of the less acetylated acetate to the concentration of the more acetylated acetate being at least one, and the solvent in which the acetates are dissolved comprising a mixture of a volatile organic liquid which is a solvent for both acetates and another volatile organic liquid capable of causing the acetates to swell, but not to dissolve.  The solvent liquid may be methylene chloride or a mixture thereof with a small proportion of butanol. The other organic liquid may be isobutanol.  Films may be formed from the solution in the usual manner by casting a layer of the solution on to a glass or metal casting surface and allowing the solvent to evaporate spontaneously, preferably in an atmosphere of RH about 60% at 20 DEG C.  After the major portion of the solvent has evaporated, the film may be allowed to remain for several hours on the casting surface before it is stripped therefrom.  In an example, films are cast from a solution of 18 grams of a cellulose acetate of acetyl content 53,2%-53,5% and 10 grams of a cellulose acetate of acetyl content 60,5%-60,9% in a mixture of 360 ml. of methylene chloride, 40 ml. of normal butanol, 200 ml. of isobutanol, 7 ml. of glycerine (as plasticizer) and 0,2 gram of a wetting agent.  The films may be rendered transparent by treating them with a mixture of glacial acetic acid and methanol until they are swollen, and thereafter drying them.  They may be used for the electrophoretic separation of protein-containing liquids.
Patent GB-999581-A (GB)
Title: A gas turbine power plant
IPC: F02C3/20
Filed: 1961-07-21
Abstract: 999,581. Gas turbine engines; jet propulsion engines; combustion chambers. A. KORGANOFF. July 21, 1961 [July 22, 1960], No. 26532/61. Headings F1G, F1J and F1L. A gas turbine power plant comprises a combustion chamber having an air intake for feeding air thereto from an ambient medium when the medium contains oxygen to support combustion, a first reservoir containing fuel and having an outlet to the combustion chamber, a second reservoir containing either oxidiser or a monofuel and having an outlet to the combustion chamber, means being provided for regulating the air intake and the outlets from the reservoirs so as to provide either a combustible air/fuel mixture, a combustible fuel/ oxidiser mixture, a combustible air/fuel/ oxidiser mixture, or in the case where monofuel is contained in the second reservoir, monofuel in the combustion chamber, there being a gas turbine drivable by the products of combustion. In Fig. 1 the combustion chamber 1 is connected to an air reservoir 2b having an inlet for air under pressure, a reservoir 4 containing fuel such as kerosene, and a reservoir 6 containing an oxidiser such as liquid hydrogen peroxide. The ducts leading from the reservoirs to the combustion chamber have valves 9, 10 and 8 whereby either fuel and air, or fuel and oxidiser or fuel and air and oxidiser may be supplied to the chamber. The gases from the chamber 1 pass to the turbine 12 which drives a shaft 35. In Fig. 2 the combustion chamber 13 is annular and has inlets 14, 15 and 16 for the supply of fuel, of oxidiser or monopropellant, and of air respectively, the inlets being controlled by valves 19, 21 and 20. Air enters the intake duct 18 and passes through one or more compressors 17 before passing to the inlet 16. Gases from the combustion chamber pass into a turbine 23 which drives the shaft 24, the exhaust gases from the turbine passing through duct 28 and propulsion nozzle 27. Alternatively by adjustment of the deflectors some or all of the gases from the combustion chamber may be passed directly to the propulsion nozzle.
Patent GB-701477-A (GB)
Title: Machine for the distribution of plastic masses such as concrete on the ground
IPC: E01C19/18
Filed: 1951-11-13
Abstract: 701,477. Concrete &c. distributing. MOSER, F. Nov. 13, 1951 [Nov. 14, 1950], No. 26599/51. Class 107 A machine for the distribution of plastic masses (e.g. concrete) on the ground, comprises a travelling frame carrying a vat, elongated in the direction of travel of the frame and adapted to travel in the frame in a direction perpendicular to the travel of the frame and has stationary elements in the vat, which cut up the plastic mass as it descends in the vat. The vat 8 has a series of blades 11 which may be vertically adjustable on members 15. A second series of elements 18 may be adjustably spaced at right-angles to the blades 11, and another series of elements 22 may be provided in the lower part of the vat. The vat is carried by wheels 7 on the frame and a locking device including lever 24 and locking lever 29, holds the vat in position when it is adjacent the side of the machine from which it is loaded by a tipper (not shown). The locking means is released by pressure on a pedal 30 and is resiliently held by the spring 33 which retains the locking lever 29 in position so that sudden shocks to the vat whilst loading do not break the apparatus. The lower edge 39 of the vat is vertically adjustable by screws 41 and that edge 14 of the vat at which the loading lorry lies is made adjustable. A foot-bridge 31 is provided for the operator and it, together with the vat, is movable by winches 37 operated by a motor 34. The frame is carried on rails by wheels 3. The rails constitute form-work for the deposited concrete.
Patent GB-729342-A (GB)
Title: Metal-ceramic bodies
Inventor: LYTTON FRANK ANDREW
IPC: C04B41/52
Filed: 1952-10-23
Abstract: 729,342. Casting composite articles. MORGAN CRUCIBLE CO., Ltd. Oct. 20, 1953 [Oct. 23, 1952], No. 26672/52. Class 83 (1). In a process for producing a metal-ceramic body by infiltration of molten silver into a porous alumina body, a coating of a metal oxide, namely copper oxide or vanadium pentoxide, is produced on the internal surface of the interconnecting pores of the alumina body, and the infiltration then effected. The metal oxide may be produced by saturating the porous body in a salt of the metal such as copper nitrate or ammonium vanadate and then converting the salt into the oxide, as by drying and baking at a temperature of 400-600 C. In a modification vanadium pentoxide powder is mixed with silver powder and applied to the body, or spread as a layer between the silver and the body. In each case the vanadium pentoxide, having a lower melting point than silver, will infiltrate to coat the walls of the pores before the silver infiltrates. Infiltration is carried out in an inert or an oxidizing atmosphere.
Patent GB-482718-A (GB)
Title: Improvements in or relating to machines for making nut or like blanks
IPC: B23B3/00
Filed: 1936-10-02
Abstract: 482,718. Turning. DENISON, W. C. Oct. 2, 1936, No. 26741. [Class 83 (iii)] In a method of cutting nut &c., blanks from rotating bar stock, a primary tool 201, Fig. 7, having a V-shaped cutting edge produces a cut in the stock, and a relatively wider cutting tool 205 operates in the cut produced by the first tool which is so arranged and fed with respect to the second tool that it can only cut along its V-shaped cutting edge. The tool 201 is formed from flat material and has no side clearance, the ends 203 being cut away inwardly to form four possible cutting points ; the tool 205 may have one edge 214, Fig. 8, adapted to form the chamfer &c., on a nut-blank and the opposite edge 215 adapted to form an integral washer on the bottom face of the adjacent blank. In lieu of the V-shaped edge of the first tool a U-shaped or a three-sided cutting edge may be employed.. A coolant is delivered to the tools through a pipe 217, Fig. 7, and a fan 220 may also be employed for cooling.
Patent GB-764590-A (GB)
Title: Improvements relating to electronic sweep generating circuits
Inventor: RICHARDSON HENRY ARNOLD
IPC: H04N3/223
Filed: 1953-09-29
Abstract: 764,590. Automatic voltage control systems. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Sept. 15, 1954 [Sept. 29, 1953], No. 26755/53. Class 38 (4). [Also in Group XL (c)] The output from a recurrent sweep voltage generator is maintained at a desired level by means of a correcting voltage derived by comparing the smoothed peaks of the sweep voltage with a reference voltage. Fig. 1 shows a " bootstrap sweep voltage generator in which a capacitor C1 is charged through a resistor R2 and recurrently discharged through a valve V1, the charging voltage being obtained through a neon tube V2 from a cathode follower valve V3 fed from the output of the capacitor C1 so that a linear sweep is obtained. The output from the cathode follower is fed through a peak rectifier V4 and a smoothing circuit to a comparator circuit V5, V6, the output of which is applied to a valve V7 to control the rate of charging of the capacitor C1 and thus the amplitude of the sawtooth output voltage. In an alternative " bootstrap " circuit (Fig. 4, not shown) the neon tube is replaced by a capacitor and the correcting voltage is obtained from the anode of valve V4 and fed through a rectifier to the upper end of resistor R2 to control the initial charging voltage for the capacitor C1. In a further circuit (Fig. 5, not shown) a " Miller type sawtooth generator is used and the output from the comparator valve V6 is used as the charging voltage for the Miller capacitor.
Patent GB-1273889-A (GB)
Title: Process for printing textile materials of synthetic organic fibres
IPC: D06L3/12
Filed: 1970-06-03
Abstract: 1,273,889. Printing. CIBA-GEIGY A.G. 3 June, 1970 [3 June, 1969], No. 26778/70. Heading D1B. Synthetic hydrophobic linear polymers free of amino groups are padded with a dyestuff which contains at least one carboxylic acid group the material then being dried and printed with an alkaline paste which may contain an optical brightener or white pigment or a further dyestuff which are free of carboxyl groups, the material then being fixed by a heat treatment and the salt of the dye containing a carboxyl group is washed from the printed areas. Fabrics treated include cellulose triacetate, polyester, acrylonitrile, polypropylene and polyurethane, alkali metal hydroxide is preferably used in the print reserve, mixed fabrics of polyester and cellulose or wool may be printed using fibre-reactive dyes for the cellulose, fixation is preferably by a dry heat process Disperse dyes not containing carboxylic acid groups may be applied in the alkalinc print paste.
Patent GB-408525-A (GB)
Title: Improvements in tea rolling machines
IPC: A23F3/12
Filed: 1933-09-29
Abstract: 408,525. Tea - rolling machines. MARSHALL, H. D., and MARSHALL SONS & CO., Ltd., Britannia Iron Works, Gainsborough, Lincolnshire. Sept. 29, 1933, No. 26869. [Class 129.] In a machine of the type having an eccentrically-positioned container 1 and a rotary table 3, in which leaf-rolling is secured by the relative motion of container and table, the edge of the container, or a separate ring 5, is in contact with the table. The ring consists of flexible material such as rubber, wire gauze, or canvas secured in position by a ring 6. Alternatively a spring-pressed metal ring may be used. A semi-circular ribbed batten 7 is provided in the container, and a further, stepped, batten 9 on the inner side of the hinged door 8.
Patent GB-218235-A (GB)
Title: Improvements in and relating to dental prosthesis
IPC: A61C13/10
Filed: 1923-10-26
Abstract: 218,235. Sanz, L. E., and Prieto, A. R. June 30, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Teeth, artificial.-A bridge is formed by two fixed crowns 1, 3, connected by a gold plate A through which a screw B is passed into the false tooth 2. Fig. 6 shows a modification in which the plate A is fitted behind the teeth. The screw B may be threaded directly into the porcelain tooth, or into a platinum plug recessed into the tooth.
Patent GB-616498-A (GB)
Title: Combined ventilating and filtering apparatus
IPC: F24F8/108
Filed: 1946-09-06
Abstract: 616,498. Air filters. VOKES, C. G., and VOKES, Ltd. Sept. 6, 1946, No. 26904. [Class 8 (ii)] [Also in Group X] In a ventilating unit comprising a chamber containing a fan 6 driven by an electric motor 8 (see Group X) and a filter 10 surrounding the motor, an annular filter unit of the deeply pleated type is used, the pleats running from the inner to the outer periphery of the annulus. In the form shown, the removable filter comprises felt supported on metal gauze and is bent over at the edges 12 to make joint with supporting channels 13, 14.
Patent GB-191178-A (GB)
Title: Improvements in or relating to machines for decorticating bast or other fibrous stems or straws or fibrous leaves and for extracting the fibres therefrom
IPC: D01B1/22
Filed: 1921-10-11
Abstract: 191,178. Carter, H. A., Davis, J., and Foster, W. D. Oct. 11, 1921. Breaking and scutching apparatus. - Ramie, jute, hemp or like stems or straws of fibrous leaves are first completely severed by being passed between splitting rollers B, B<1>, Fig. 2, which are correspondingly grooved, knives C on the upper one passing through the stems &c. into the grooves in the lower one. They are then pressed flat and passed through a device comprising two pairs of rollers H, H<1>, J, J<1>, Fig. 4, and a scraping or brushing roller K, which removes the outer skin. The material is held up to the roller K by a spring- supported board L. They are finally subjected to the action of a fan or roller O, Fig. 5, having resilient beaters of rubber, leather, &c. to remove the pith &c., of rollers Q, R coacting with a curved plate P, and of a brush S. The various devices are mounted on a common bed-plate and are driven by gearing from a common shaft.
Patent GB-893631-A (GB)
Title: Coating compositions, coated articles and method of coating
IPC: C09D133/10
Filed: 1958-08-22
Abstract: A coating composition comprises a solution in an organic solvent of a blend of (a) at least one base polymer of a monoethylenically unsaturated monomer and which contains at least 25% of polymerized methyl and/or ethyl methacrylate and from 0 to less than 2% of one or more monomers of formula I, II, III or IV listed below <FORM:0893631/IV (a)/1> where R DEG  is hydrogen or a C1-C4 alkyl group, and n is 1, 2, 3 or 4; II CH2 = C(R)AYNR1R2 where R is hydrogen or methyl, A is oxygen, sulphur or <FORM:0893631/IV (a)/2> or <FORM:0893631/IV (a)/3> group, Y is a C2-C4 alkylene group and R1 and R2 are hydrogen or a C1-C4 alkyl group; <FORM:0893631/IV (a)/4> <FORM:0893631/IV (a)/5> where R is hydrogen or methyl and Z is a C2-C3 alkylene group and (b) at least one modifying polymer of a monoethylenically unsaturated monomer and which contains at least 25% of polymerized methyl and/or ethyl methacrylate and at least 2% of one or more monomers of formulae I, II, III or IV listed above; the base polymer being compatible with the modifying polymer and the total amount in the blend of monomers of formulae I to IV being from 0,1 to 10% of the blend.  The base polymer may consist of polymethyl and/or ethyl methacrylate or of the polymer of methyl and/or ethyl methacrylate and at least one other polymerized ester of acrylic or methacrylic acid and a C1-C18 alcohol with or without (a) up to 2% of units of a carboxylic acid and/or (b) up to 50% of one or more neutral monomers (excluding esters of acrylic and metharylic acid. The modifying polymer may contain units from N-[b -(a -methacryloxyacetamido)ethyl]-N,N1-ethyleneur-ea, from dimethylaminoethyl-methacrylate or -acrylate or -vinyl ether, or from 4-vinyl pyridine, Specified examples of the composition are (1) a blend of a homopolymer of methyl methacrylate and a copolymer of methyl methacrylate and N-[b -(a -methacryloxyacetamido-)ethyl]-N, N 1 - ethyleneurea, a blend of polymethyl methacrylate and a methyl methacrylate-dimethylaminoethyl-methacrylate or acrylate, a blend of a copolymer of methyl and butyl methacrylates and a copolymer of methyl and butyl methacrylates and N-[b -)a -methacryloxyacetamido-)ethyl]- N, N 1 ethyleneurea and a blend of polymethyl methacrylate and a copolymer of methyl methacrylate and 4-vinylpyridine.  Neutral monomers specified are acrylonitrile, methacrylonitrile, styrene and vinyl acetate. Aromatic hydrocarbons, alcohols, aliphatic hydrocarbons, ketones and ethylenedichloride are specified solvents.
Patent GB-825285-A (GB)
Title: Improved hinge
IPC: E05D3/06
Filed: 1955-09-23
Abstract: 825,285. Hinges. WILSON, J. L. June 8, 1956 [Sept. 23, 1955], No. 27133/55. Class 65(2) A hinge comprises a pair of links slidably connected with each other and adapted respectively to be pivotally connected with the inner surfaces of the side wall and the lid of a box for pivotal movement about axes angularly fixed in relation to the wall and the lid respectively. The hinge comprises a wire link 3 of rectangular form pivotally connected to a flap 1 and having slidably connected to its side arms the looped ends 6a of a U-shaped link 5 which is itself pivotally connected to a flap 7. When the flaps 1 and 7 are attached to the inside faces of a box lid and wall respectively, and the lid then fully opened, the links extend in an arch-like manner across the adjacent edges of the lid and wall.
Patent GB-924077-A (GB)
Title: Crawler tractor with demountable side frames
Inventor: CIMINO CHARLES
IPC: B62D55/084
Filed: 1961-07-26
Abstract: 924,077. Tractors. THEW SHOVEL CO. July 26, 1961, No. 27143/61. Class 79(1) An endless-track carrier 1 comprises two side frames 17 detachably secured to opposite sides of a centre frame 2 which is provided with pockets 15 for mounting anxially slidable shafts 16 which can be protracted to engage holes 19 provided in side frames 17 or can be retracted from holes 19 into pockets 15 to release the side frames from centre frame 2. Each tubular shaft 16 is slidable in guide collars 35, 36 fixed to the top and bottom plates 37, 38 of frame 2. A collar 39 limits the outward travel of shaft 16 which, in its outermost position, projects through hole 19 in side rail 18 of frame 17. Studs 41, nuts 42 and plate 43 hold rail 18 on the end of shaft 16. A split collar 40 is mounted on shaft 16 on the outside of rail 18, as shown at top of Fig. 2 and in Fig. 5, or on the inside of rail 18 as shown at the bottom of Fig. 2, to vary the width of the carrier. A screw shaft 44 extends through each shaft 16 and has a member 46 at its inner end which, in the position shown, fits between lugs, not shown, of a fixed partition 48, and so prevents shaft 44 from rotating. By tightening nut 45, plate 43 and shaft 16 are urged inwardly to clamp the side rail in position. Drive shafts 10 have either a short jaw coupling member or a long member 14, depending upon whether collar 40 is on the outside or inside of rail 18, engaging with the hub 31 of sprocket wheel 30 which drives, by a chain 29, a sprocket wheel 28 keyed on the shaft 27 which carries a sprocket 21 engaging with the endless-track 9.
Patent GB-829181-A (GB)
Title: Improvements in and relating to transducing systems
Inventor: ADAMS JOHN NELSON
IPC: H04R17/06
Filed: 1954-09-20
Abstract: 829,181. Gramophone pick-ups. COSMOCORD Ltd. Dec. 20, 1955 [Sept. 20, 1954 (2)], Nos. 27151/54 and 27152/54. Class 40 (4). [Also in Group XL (b)] A piezo-electric bender element is mounted on a flexible member at an angle to the axis about which the member is torsionally stressed, and as a result is subjected to a substantially pure bending force. As shown in Fig. 1, the transducing system of a gramophone pick-up having two styli 10, 11 arranged for alternate use comprises a rectangular flexible member 13 of polystyrene or cellulose acetate which is clamped at one end to the pick-up casing 12 by a part 13a and is pivoted at the other end by an extension 13b. In use, torsional stresses are applied to the flexible member by way of notched projections 13c, 13d which engage tube or wire cantilever stylus arms 16, 17, the arms being mounted on the casing by resilient pads or grommets 18, 19. Piezo-electric elements 13, 15 consisting of barium titanate bender bimorphs are wholly or partially embedded in the two faces of the rectangular member and extend along the same or opposite diagonals. In a modification, Fig. 3, the flexible member is formed by an open rectangular frame 21, the piezo-electric elements 26, 31 being mounted in slots 25 and held by flanges or cement. The frame is formed from plastic or brass or bronze strip and is torsionally mounted by a lug 23 and pivot 24. A reinforcing strip of metal may be substituted for element 31.
Patent GB-203211-A (GB)
Title: Improvements in apparatus for heating water or other liquids
IPC: F24H1/18
Filed: 1922-10-09
Abstract: 203,211. Darby, E. Oct. 9, 1922. Block - form boilers. - Tanks 7, 9, 11, 13, 15, 17 are arranged in series at substantially the same level, fed by a supply tank 1 and deliver to a tank 2, the vessels 1, 2 being connected by a pipe 20. The normal water level when cold may be, as shown, slightly below the outlet cock 24 or may be above it.
Patent GB-1287442-A (GB)
Title: Improvements relating to safety seat belts for vehicles
Inventor: CUNNINGHAM DOUGLAS JAMES
IPC: A44B11/25
Filed: 1969-05-29
Abstract: 1287442 Releasable fastenings WINGARD Ltd 12 May 1970 [29 May 1969] 27257/69 Heading E2A  A seat belt has a lap and diagonal belt slotted through a tongue part 14 of a two-part buckle, the other buckle part being pivotally mounted on a seat frame by a clip 38 and connected to a stationary floor anchorage by a rigid stay of adjustable length. The stay comprises a bar 27 slidable in a sleeve 25, ratchet teeth 28 on bar 27 being engageable by a spring-loaded pawl 32 on sleeve 25. When part 14 is inserted to fasten the buckle, its head 16 pushes down a coil spring 37 of a transmission member 36, the other end of which has a coil 35 which also moves down to permit spring 34 to urge pawl 32 into engagement with teeth 28. On release of the buckle, coil 35 is moved upwards due to expansion of spring 37, the pawl being thus disengaged from teeth 28.
Patent GB-1017324-A (GB)
Title: Improvements in insulin preserving travel kit for diabetics
Inventor: JENTIS REBECCA
IPC: A61J1/16
Filed: 1964-07-02
Abstract: 1,017,324. Storing hypodermic injection equipment. R. JENTIS. July 2, 1964, No.27375/64. Heading A5R. [Also in Division F4] A portable insulin preserving container 10 comprises an inverted bottle 26 containing a pressurized liquid refrigerant, a heat exchanger 41 surrounding a bottle 13 of insulin and valve means 35 for regulating the flow of refrigerants from the bottle to the heat exchanger. The insulin compartment 11 is insulated by a vacuum jacket 15 and has an upper access opening into which is screwed a member 17 having a stopper 21 in its upper end and an intermediate web 18 with an orifice 19. With stopper 21 removed a hypodermic needle may be inserted through orifice 19 and a puncturable cap 20 into the insulin bottle. Container 10 has a lid 65 for accesss to hypodermic needles 66a, a syringe 67a, an alcohol bottle 68a and cotton 77, the latter being housed in a space 64 having a stopper 72 incorporating a blade 78 for cutting the cotton. A door 82 in the bottom wall of the container provides access to spare refrigerant bottles 26. An insulin level indicator is also provided.