baber/WOPTO huggingface dataset:
Patent GB-1104511-A (GB)
Title: Improvements in or relating to roof supporting devices
Inventor: COTTERILL HERBERT
IPC: E21D15/48
Filed: 1964-07-09
Abstract: 1,104,511. Mine checks. HERBERT COTTERILL Ltd. 23, April, 1965 [9, July, 1964], No. 28269/64. Heading E1E. In a roof-supporting device comprising a ground-engaging member 2 (to which is attached a member 3), a roof-engaging member 1 and a further member 4, the members 1, 2 and 3 having mating surfaces inclined to the horizontal, the inclined surfaces on the members 1, 2 being separated by a horizontal surface, and a hydraulic ram 5, 6 connected 'to the member 4, relative vertical movement occurs between the members 2 and 1 upon horizontal movement of the member 4. The hydraulic ram 5, 6 embodies a pressure relief valve and the inclined surfaces are of a material having a low friction coefficient. Another ram may be added to the ram 5, 6.
Patent GB-354100-A (GB)
Title: Improvements in convertible bodies of vehicles
IPC: B60P3/42
Filed: 1930-09-22
Abstract: 354,100. Convertible passenger and commercial vehicles. HUBBARD, W., Station Street, Koo-wee-rup, Victoria, Australia. Sept. 22, 1930, No. 28291. [Class 108 (i).] A vehicle having the usual appearance of a singleseater car is provided with a covered-in rear portion which is adaptable for use as an additional passengercarrying compartment or as a platform compartment for the carriage of goods. The rear B is normally closed by a series of flaps 1 .. 4, flaps 1, 2 being hinged together and adapted to be positioned as in Fig. 6 to form a passenger-carrying compartment or turned down as in Figs. 4 and 7 the flap 1 forming a floor extension and the flap 2 either a further floor extension or a tailboard. The sides of the rear compartment are adapted to be extended by members 17 while the flaps 3, 4 are moved forwardly into a position as shown in Figs. 6 and 7 or otherwise disposed of, while the seat S and seatback S<1> may be positioned for use and out of use respectively as shown in Figs. 6 and 7.
Patent GB-405405-A (GB)
Title: Improvements in or relating to fishing nets
IPC: A01K73/02
Filed: 1932-10-12
Abstract: Debris pockets are provided on the bottom of a net.  They are made of net, metal chain or plates, rubber, leather or reinforced fabric and in a triangular or rectangular shape.  The net may be slotted at the rear of the pocket to permit the escape of the debris and the bottom of the pocket formed as a spring flap.
Patent GB-151852-A (GB)
Title: Improved road-making, or paving materials and method of manufacturing the same
IPC: C08L95/00
Filed: 1919-11-15
Abstract: 151,852. Honda, C. Nov. 15, 1919. Compositions containing bituminous &c. materials &c., resinates, &c.-A road-making or paving material applicable as an asphalt substitute is prepared by mixing tarry matter with common salt, and adding resin which has been saponified and sulphuretted by fusion with slaked lime and sulphur. Clay may be added.
Patent GB-377504-A (GB)
Title: Process for the production of sulphates
IPC: C01D5/04
Filed: 1931-10-13
Abstract: Ammonium, sodium, zinc, copper, and other sulphates are obtained by passing oxygen or a gas containing oxygen into an aqueous medium containing the corresponding sulphite, the oxygen &c. being introduced in such a fine state of division and at such velocity that a portion at least of the liquid is transformed into foam.  When acid sulphites are used or when gases containing sulphur dioxide are introduced, the necessary basic substances are continuously or intermittently added, whilst in the production of alkali sulphates primary or secondary phosphates may be also obtained by supplying the required base from secondary or tertiary phosphates.  In producing ammonium sulphate a saline mixture containing sulphite and bisulphite, and it may be sulphate, and obtained by combining gaseous ammonia with steam and sulphur dioxide and separating the product in bag-houses or by electrical precipitation means may be employed.  The sulphurous acid may also be wholly or in part supplied to the aqueous medium in a state of fine subdivision.  The fine subdivision necessary may be obtained by passing the oxygen &c. through microporous slabs, or by means of high speed rotary members revolving say at 3000 revs. per min.; for instance a gas distributing apparatus of the kind used in floatation apparatus may be used.  Elevated temperatures may be used for the reaction, in which case the sulphate formed may be recovered by cooling or by passing the limit of saturation and continuously or intermittently separating the deposited sulphate.  Ammonium sulphate may also be salted out from solution by sulphite or bisulphite.  Water-soluble heavy metal salts such as those of copper, iron, or manganese may be added in small quantities to accelerate the oxidation; when copper sulphate is used sodium chloride may be added also to keep it in solution. During reaction the pH value of the liquid is preferably maintained between 4 and 5,5.  Specification 350,050 is referred to.
Patent GB-1496097-A (GB)
Title: Indexing cam mechanism
IPC: F16H25/04
Filed: 1976-07-09
Abstract: 1496097 Cams; toothed gearing S SHINOHARA and H MAKINO 9 July 1976 [22 July 1975] 28623/76 Headings F2K and F2Q A stepping mechanism comprises three cam plates 2, 3, 4 fast on a rotatable input shaft 1 and adapted to engage and drive roller followers 7, 8, 9 equispaced on carrier pins of the plates 6-1, 6-2, 6-3 and 6-4 of a spider assembly formed on an output shaft 5, the arrangement effecting intermittent drive to the output shaft 5. The intermittent dwell period may be varied according to the profiles of the cam plates 2, 3, 4. As shown, 270 degrees rotation of the input shaft 1 effects 360 degrees rotation of the output shaft 5 which then remains stationary during the remaining 90 degrees dwell rotation of one complete revolution of the input shaft 1, whereby the output shaft 5 is displaced one revolution with a dwell period for each complete revolution of the input shaft 1. In the alternative embodiments of Figs. 3 and 4 (not shown) a similar one complete revolution of the input shaft effects 180 and 90 degree rotational movement respectively of the output shaft 5 whereby the output shaft 5 is indexed 180 or 90 degrees respectively with a following dwell period for each complete revolution of the input shaft 1. The stepping arrangement is used with an electromagnetic clutch/brake combination 22-26 (Fig. 6) whereby the clutch 22-25 is energized, i.e. engaged during the stepped index drive and the brake 22-23 is energized, i.e. engaged during the dwell period.
Patent GB-670382-A (GB)
Title: Improvements in or relating to telescopic gas holders
IPC: F17B1/007
Filed: 1949-11-09
Abstract: 670,382. Gas holders. BALFOUR & CO., Ltd., H., BUREAU, A. C., and MEEK, L. R. Jan. 24, 1951 [Nov. 9, 1949], No. 28703/49. Class 54. A gas holder consisting of a number of lifts each of which is stiffened by vertical channel members 1 and provided with a dip plate 6 at its upper extremity and an annular, water-filled cup 5 at its lower extremity has cover plates 2 fitted between the toes of the flanges of at least some of the stiffeners to provide ducts 1B having openings 8 at their lower ends and tubular extensions 3 at their upper ends to receive surplus water from the cups. This construction enables the surplus water to descend seal by seal to the base of the holder without coming into contact with the gas and without disturbing the oil film which may be provided on the surface of the water. The ducts are kept at atmospheric pressure by the provision of one or more vents. In an alternative construction, the extension 3 is attached to the opposite side of the dip plate from that shown and the duct is provided with a hand hole.
Patent GB-629077-A (GB)
Title: Electron tube
IPC: H01J19/40
Filed: 1947-10-28
Abstract: 629,077. Thermionic valves. CROOK, L. H. Oct. 28, 1947, No. 28797. Convention date, June 30, 1942. [Class 39 (i)] At least one electrode of a discharge tube has connected to it a conductive shielding conduit entering the envelope and housing externally of the envelope the electric current source of the electrode; the shielding conduit may be shaped within the envelope to effect electrostatic screening of the electrode. Fig. 1 shows a triode inside a spherical glass envelope 14. There is a spherical anode 13 and hemispherical grid 12 and cathode 17. The vacuum space is limited by seals 48, 49, 53. The cathode has a hemispherical shield 20 which extends outside the envelope and forms a container for the heating battery 18. The grid and anode have similar shields extending to containers for batteries 30, 40. The grid and anode may be coupled to external circuits by transformers 34, 44, the windings of which are coupled by the magnetic cores 36, 46.
Patent GB-364115-A (GB)
Title: Improvements in or relating to paper articles such as handkerchiefs, towels and the like and methods of making the same
IPC: B31D1/04
Filed: 1930-09-26
Abstract: 364,115. Handkerchiefs. CELLULOSE PRODUCTS, Inc., Shamokin, Pennsylvania, U.S.A.-(Assignees of Wandel, K. ; Shamokin, Pennsylvania, U.S.A.) Sept. 26, 1930, No. 28870. Convention date, June 27. [Class 141.] A paper article simulating a handkerchief comprises a number of superimposed sheets 4, 5, 6 of soft cellulose tissue secured together around the edges, the sheets being sealed or compacted together along two opposite edges 8, 9 by pressure along a line, and also being secured together adjacent the edges by lines of indentations 10, 11. The articles 1, 2, 3, may be made in continuous lengths, as shown :.n Fig. 1, the sealing of the edges 8, 9 being effected by wheels 20 which coact with rollers 23 beneath the sheets. The pressure on the wheels 20 may be such as to cut the sheets. The articles 1, 2, 3 may be separated from one another by transverse lines of weakness, e.g. an indented or compressed line, so that they can be torn off, or they may be separated by a pair of spaced lines of indentations 13, 14 in order that the sheets may be severed and sealed together by cutting along a line 17 between the lines of indentations. In order to simulate the hem of a handkerchief more closely, the sheets may te secured together by pressure along a line spaced by the width of the hem from the edge of the sheets, the portions outside the line being folded in and secured by lines of indentations. Specification 363,699 is referred to.
Patent GB-1062684-A (GB)
Title: Process and apparatus for the production of plastic articles with a cellular structure from thermoplastic polymer resins
Inventor: EBERLE HANS
IPC: C08J9/14
Filed: 1965-07-08
Abstract: Cellular thermoplastic resins, which may contain a fertilizer incorporated therein, are produced by mixing with such a resin 5% to 25% by weight of an organic inflating agent which is liquid under normal conditions and does not dissolve the resin, converting the mixture of resin and inflating agent to a homogenous plasticized gel by pressure alone, at a temperature below that at which the resin itself softens, and inflating the mixture.  The preferred fertilizer is urea, which is suitably applied to the soil in low concentrations diluted by the foamed resin so that it does not "burn" the vegetation, but which cannot be incorporated in resins foamed by conventional inflating processes, as it decomposes on heating to form poisonous biuret. Suitable thermoplastic resins are polystyrene and styrene-vinyl chloride copolymers.ALSO:Cellular thermoplastic resins are produced by mixing with a thermoplastic resin 5% to 25% by weight of an organic inflating agent that is liquid under normal conditions and does not dissolve the resin, converting the mixture of resin and inflating agent to a homogenous plasticized gel by the application of a sufficiently high pressure alone, at a temperature below that at which the resin itself softens, and in this state moulding and inflating the mixture by volatilizing the inflating agent.  Preferred thermoplastic resins are copolymers of styrene and vinyl chloride, or recovered waste foamed resin which has been compacted by heating. The resin and the inflating agent may be used as a predominantly two-phase mixture, and the gel is preferably shaped by passing it through an extrusion die.  A small amount of a monomeric component, e.g. methyl methacrylate, is preferably added to the gel.  Suitable worm presses for carrying out the process are illustrated.  Other components which may be added to the gel are lubricating and stabilizing agents, bubble nucleators, auxiliary foaming agents, e.g. bicarbonates, flameproofing agents and fetilisers, e.g. urea.
Patent GB-1472985-A (GB)
Title: Process for removing sulphur oxides and nitrogen oxides from combustion exhaust gas
IPC: B01D53/60
Filed: 1974-06-28
Abstract: 1472985 Removal of SO x  and NO x  from exhausts FUJI KASUI ENG CO Ltd and SUMITOMO METAL INDUSTRIES Ltd 28 June 1974 [16 July 1973] 28926/74 Heading C1A Sulphur oxides and nitrogen oxides are removed from exhaust gases containing SO 2  and NO by (1) mixing with chlorine dioxide or ozone gas, thus converting nitric oxide to nitrogen dioxide and/or dinitrogen trioxide, and (2) scrubbing with an aqueous solution having a pH value of not less than 7, and containing an alkali metal or ammonium bicarbonate and at least 1À0% by wt. (based on total scrubbing solution) of an alkali metal or ammonium sulphite. The sulphite is preferably made in situ by solution of sulphur dioxide contained in the exhaust gas, in alkali metal or ammonium carbonate or hydroxide in the scrubbing solution.
Patent GB-859271-A (GB)
Title: Process for the preparation of finely-divided silica
IPC: C01B33/18
Filed: 1959-08-25
Abstract: In a process for preparing finely-divided SiO2 by heating quartz sand and carbon to at least 1400 DEG C. and subsequently burning the SiO formed in air to SiO2, a polyvalent metal which will reduce SiO2 is added to the starting mixture in an amount from 0.02-0.2 mol per mol SiO2.  The metal may be powdered Mg, Ti, Zr, Ca, or Al, and the mol ratio SiO2:C and metal may be 1:1 to 1.2, preferably the ratio SiO2:C:metal is 1:1.05:0.05.  The mixture is heated to 1400-2000 DEG C. in an inert atmosphere e.g. A or CO.
Patent GB-482148-A (GB)
Title: Improvements in and relating to thermostatic control devices
IPC: H01H37/50
Filed: 1936-10-24
Abstract: 482,148. Thermal switches. BADER, K. Oct. 24, 1936, No. 28969. [Class 38 (v)] [Also in Groups XIII and XX] In thermostatic control apparatus, a metal tube 1 of high expansion coefficient encloses a ribbon 2 of steel with a low expansion coefficient, passing round a series of pulleys in two blocks 10, 11. The tube 1 is secured in a socket 23 and the free end of the ribbon passes through a slot 24 and is secured to a shaft 3. The shaft 3 carries a lever 5 acting on a projection 6 from a cradle 22 carrying a mercury switch 8. A temperature - indicating pointer may be mounted on the end of the shaft 3. The cradle 22 may be carried by a lever 13 mounted to turn about the axis of the shaft 3, so that it may be adjusted by an external lever to vary the temperature at which the switch is tilted. The thermostat may be employed to control threephase current by mounting three mercury switches in one cradle.
Patent GB-1010197-A (GB)
Title: Electrically conductive plastics compositions
Inventor: FROST LESLIE EDMUND
IPC: C08K3/04
Filed: 1963-07-23
Abstract: An electrically conductive plastics composition consists of a processed mixture of a high density polyethylene (defined), a synthetic rubber and from above 23% up to 40% of a conductive carbon black with optionally an antioxidant.  The rubber is preferably a butyl rubber (exemplified), or a polyisobutylene or a polybutadiene rubber, present in amounts between 10 and 35%.  The composition may be used for making pressings, mouldings, extrusions, calendering products or blown film.
Patent GB-1519056-A (GB)
Title: Electrophotographic recording element
IPC: G03G5/10
Filed: 1975-07-10
Abstract: 1519056 Conductive supports for electrophotographic members UNISEARCH Ltd 10 July 1975 [10 July 1974] 29059/75 Heading G2C [Also in Division D2]  An electro-photographic element comprises a cellulosic support which has been treated with ionizing radiation of from 10<SP>4</SP>-10<SP>8</SP> rads to render it conductive and a photo-conductive layer. Specified radiations are beta-and gamma-rays, x-rays, accelerated electrons and particles and ionizing U.V. radiation. Specified photo-conductors are ZnO and the graft polymers of Specification 1500803.
Patent GB-243529-A (GB)
Title: Improvements in and relating to locks and latches
IPC: E05B63/00
Filed: 1924-12-04
Abstract: 243,529. Vaughan, Ltd., H. & T., and Ramsell, H. G. Dec. 4, 1924. Sliding bolts; locks, -revolving - barrel. - In a lock of the type in which a bolt is actuated by a spring- loaded operating arm engaging a gate in the bolt so that the bolt can be locked by the arm in two positions, the arm g has a projection f at right-angles to it engaged by projections q, Fig. 4, on a plate p connected with the operating tongue of a cylinder lock. The projection f engages flats j in the shot or withdrawn position of the bolt to lock the bolt, and a spring-pressed arm n holds the arm g by bearing against the projection f. In a modification, the arm 5, Fig. 7. has a projection 3 on an extension 6 engaged by a key-operated cam 1, Fig. 8, on the back of a cylinder 2. A bow spring 7 may bear against the extension 6 to hold the arm in the extreme positions.
Patent GB-1411503-A (GB)
Title: Process for purfying an enzyme
IPC: C12N1/38
Filed: 1973-06-19
Abstract: 1411503 Purifying enzymes SNAMPROGETTI SpA 19 June 1973 [7 July 1972] 29131/73 Heading C3H The proportion of an enzyme in a mixture of (a) the enzyme and (b) at least one other compound, viz. protein, nucleo protein or nucleic acid, produced, e.g. by lysing micro-organism cells, is increased by treating a solution of the mixture with a cationic surface active agent to precipitate (at least partially) the other compound(s) and the precipitate is removed from the treated solution. The preferred surface active agents are hexadecyl pyridinium chloride and benzyl-dimethyl-alkyl (C 10 -C 18 ) ammonium chloride, used in concentrations ranging from 0.01 to 0.4 g/dl. Examples 1 to 6 are directed to the treatment of mixtures rich in penicillin amidase, obtained by homogenizing a suspension of Escherichia coli cells and thereafter removing cell fragments by centrifuging, with one or other of the above specified cationic surface active agents at pH's ranging from 4.5 to 7-0. The purified enzyme could be recovered from the clear supernatant product by addition of ammonium sulphate. Examples 7 and 8 relate to the treatment of mixtures rich in #- galactosidase obtained from cells of Escherichia coli and Saccharomyces lactis, respectively.
Patent GB-1000840-A (GB)
Title: Self-equalizing mounting for doctor blades
Inventor: LJUNGQUIST ERNST ROLAND
IPC: D21G3/00
Filed: 1962-07-30
Abstract: 1,000,840. Paper-making. LODDING ENGINEERING CORPORATION. July 30, 1962, No. 29164/62. Heading D2A. A doctor blade assembly suitable for doctoring a roll 12 in a paper making machine comprises an elongated doctor back member 20, Fig. 2,a doctor blade holder 18 and a doctor blade 16 supported thereon, a journal 26 at each end of the doctor back, a block 34 for each journal 26, a slide plate 36 supporting each block 34, guide ways 38 for the slide plates, a combined hydraulic and pneumatic cylinder 44 connected to each slide plate 36, and means for applying hydraulic fluid to one end of each cylinder to move the plates 36, the blocks 34, the journals 26 &c. substantially rectilinearly in a direction at right angles to the general longitudinal axis of the doctor back member 20 so that the blade 16 is moved to its operative position. Plates 28 are fixedly mounted on the journals 26 and are provided with a series of arcuate slots 30 which receive bolts 32 threaded into the end plates of the back member 20 so as to hold it in an angularly adjusted position relative to the journals 26. The blocks 34 may be adjustably mounted on the plates 36 by means of slots, Fig. 3 (not shown). The guide ways 38 include members 40 which prevent movement of the plates 36 in a vertical direction and members 42 which are so spaced that the plates can move slightly from side to side during the said rectilinear motion forward and back. The rectilinear motion is provided by the cylinders 44 each of which is attached by means of a bracket 58 to the respective plate 36. Air applied to a hydropneumatic intensifier, Fig. 7, (not shown) causes hydraulic fluid to pass through the port 55, Fig. 5, of each cylinder 44 and moves the cylinders to the left, and applies the blade 16 to the roll 12 under equal pressure at both ends. The blade is retracted by applying air to the ports 56 of the cylinders 44. The guide ways 38 are pivoted slightly on studs 68 to provide self-alignment of the ends of the back member 20 regardless of the angularity of the surface of the roll 12 with respect to the edge of the blade.
Patent GB-535315-A (GB)
Title: Improvements in or relating to electric flashlights
IPC: F21V17/02
Filed: 1939-11-01
Abstract: 535,315. Battery lamps. PLATERS & STAMPERS, Ltd. (Katzinger Co., E.). Nov. 1, 1939, No. 29177. [Classes 39 (ii) and 75 (iv)] In a battery lamp which includes an actuating member 9 for effecting relative movement between the bulb 4 and a translucent screen 17 whereby the colour of the light from the lamp may be changed a detent 22 engages notches 23, 24, 25 to position the member 9 in its several positions. The operating member 6 is slidably mounted, and operates the member 9 which at its offset portion 26 forms a contact engaging a fixed contact 27, a bracket 15 on the member 9 being attached to the screen 17 having a red portion 18 and a green porton 19. In the position shown the switch is opened and is closed by moving the member 6 to its position 6a the screen 17 in this position 17a remaining substantially clear of the bulb so that a clear light is emitted. Movement of the member 6 and therefore, the screen 17 to positions 6b and 17b, respectively, provides a green light and further movement gives a red light. The contact 27 is resiliently mounted.
Patent GB-1042498-A (GB)
Title: Reversal developer mix
IPC: G03G9/107
Filed: 1963-07-23
Abstract: 1,042,498. Electrophotographic processes. CHARLES BRUNING CO. Inc. July 23, 1963 [Sept. 6, 1962], No. 29198/63. Heading G2H. A reversal developer powder for use in developing latent electrostatic images by applying the powder by means of a magnetic brush, comprises magnetic carrier particles and toner particles of a smaller particle size than the particle size of the magnetic particles, the toner particles consisting of a mixture of pigmented resin particles and particles of one or more metal salts of an aliphatic carboxylic acid having from 12 to 18 carbon atoms per molecule, the metal of the metal salt being one of the metals calcium, barium, lead, magnesium, or zinc. The aliphatic acid may be stearic, palmitic or oleic acids. The magnetic particles maybe iron, ferrites, nickel or cobalt. The magnetic particles and resin particles are chosen to have a triboelectric relation such as to produce a negative charge on the resin particles. Suitable resins are polystyrene, acrylic resins, rosin, asphalt, gilsonite, polyvinyl resins. In one example (Example 1) the following parts by weight of toner constituents are mixed to form a homogeneous mixture:- 5. 7 parts polystyrene, melting point 100C.  3C., 3. 8 parts polystyrene, melting point 125C. 3C., 0. 3 parts carbon black, 0.2 parts green pigment. The mixture was cooled and then ground to a particle size from 10 to 20 microns. The pigmented resin then added to the 0.2 parts calcium stearate and 500 parts of powdered iron and the mixture agitated. In other examples, the calcium stearate is replaced by barium stearate, lead stearate, magnesium stearate or zinc palmitate.