baber/WOPTO huggingface dataset:
Patent GB-461928-A (GB)
Title: Improvements in or relating to cutting machines, scoring machines or the like
IPC: B26D5/02
Filed: 1935-11-20
Abstract: 461,928. Cutting and scoring cardboard &c. VICKERS-ARMSTRONGS, Ltd., and NASMITH, J. I. Nov. 20, 1935, No. 32203. [Class 31 (i)] [Also in Group XVI] A cutting or scoring machine for cardboard &c. is provided with a tool beam or support 10 adapted to carry a plurality, e.g. two, sets of tools 11 and to be moved laterally of a worksupporting roller 16 whereby either set of tools co-operates with the roller. The beam 10 is slidable between stops on guide rods (not shown), being operated by a lever handle 21 coupled thereto by a link or links 20. The tools 11 are carried by holders 12 mounted in tool stocks 13 provided with rollers 15 and V-grooves to co-operate with ledges 14 on the beam 10. A pivoted work guide 24 may be provided on the beam.
Patent GB-967940-A (GB)
Title: Improvements in turbine or compressor nozzle and vane assembly
IPC: F01D9/04
Filed: 1962-08-22
Abstract: 967,940. Turbine and compressor blade fixing. GENERAL ELECTRIC CO. Aug. 22, 1962 [Aug. 24, 1961], No. 32242/62. Heading F1T. A stator vane assembly for axial flow compressor or turbine comprises an inner shroud and an outer shroud, the outer shroud being formed by an inner annular band and an outer annular band of circumferentially overlapping joined segments, some of which have at least one aperture for receiving a vane. An annular stator vane assembly 1, Fig. 1, has an inner shroud 2 and an outer shroud 30 having inner and outer annular bands 35, 36 positioned on stator vanes 10 to 14. The outer band 36 is formed by circumferentially joining adjacent segments such as 40, 41 having an overlapping area 51. An aperture 61 in the segment 41, Fig. 2, is machined to receive the stator vane end 21. The segments may be joined by brazing along serpentine lines to give a variable overlap 70 and provide stiffening ribs 80. Each outer segment may have more than one aperture to receive the vane ends or certain segments may be formed without apertures. The construction facilitates assembly of the stator.
Patent GB-753525-A (GB)
Title: Penicillin compounds with benzimidazoles
Inventor: SCHULEMAN WERNER
IPC: C07D499/00
Filed: 1953-11-20
Abstract: The invention relates to a salt of penicillin with 1-p-chlorobenzyl-2-pyrrolidylmethyl benzimidazole, or a salt thereof. The salt is prepared by (a) reacting a penicillin, e.g. penicillin G, with the benzimidazole in solution with a solvent such as a 1 to 6 carbon alcohol, a 3 to 7 carbon ketone, ester, ether, or halogenohydrocarbon, e.g. chloroform; (b) reacting a salt of penicillin, e.g. an alkali metal salt such as the sodium salt, with a salt of the benzimidazole, e.g. the hydrochloride in solution with a solvent such as water, a 1 to 6 carbon alcohol or a 2 to 7 carbon ketone.  Specification 683,409 is referred to.ALSO:A salt of penicillin with 1-p-chlorobenzyl -2-pyrrolidylmethyl benzimidazole (see Group IV (b)) is suspended in an isotonic solution and forms a prolonged acting penicillin preparation. Specification 683,409 is referred to.
Patent GB-809207-A (GB)
Title: Improvements in and relating to transistor amplifiers
IPC: H03F1/26
Filed: 1956-10-23
Abstract: 809,207. Transistor amplifier circuits. MURRAY, J. S. Oct. 23, 1956, No. 32314/56. Class 40 (6). A common emitter or common base transistor amplifier having an emitter bias resistor and a collector load has its collector to base voltage maintained constant by a negative feed-back circuit between collector and base including an emitter follower transistor stage with a grounded collector. The collector to base voltage may thus be maintained at a low value in order to reduce noise. In Fig. 2 a common emitter stage 11 feeds an emitter follower stage 22 and negative feed-back both for A.C. and D.C. is provided by a resistor 21. Further negative feed-back for A.C. is provided by a resistor 25. A low-pass filter may be included in series with resistor 21 to prevent the feed-back circuit shunting the input circuit. Transistor 22 may be an auxiliary transistor outside the main signal amplifying path and resistors 23 and 24 may be decoupled by a capacitor (Fig. 1, not shown). Two D.C. amplifiers according to the invention may be arranged in push-pull and D.C. coupled to a push-pull output circuit (Fig. 4, not shown) feeding a meter or a relay. In Fig. 3 a further amplifier stage 33 is added in the feed-back loop, the output being taken from the collector and the stabilizing feed-back taken from the emitter, a low-pass filter 21a being included in the latter path. Further A.C. negative feed-back is provided for the collector of transistor 33 and from the emitter of transistor 22 and this may be varied to vary the frequency response of the amplifier. The input signal may be applied to either the base or emitter electrode of transistor 11 according to whether switches 40 and 41 are in positions h or l. The circuit is made more stable by connecting a resistor 46 between base of transistor 11 and earth, a resistance capacity circuit 29, 31 between the emitter of transistor 22 and earth and a resistor 54 in the collector supply lead. '
Patent GB-354395-A (GB)
Title: Improvements in or relating to the concentration of cassiterite ores and the like
IPC: B03B1/04
Filed: 1930-07-24
Abstract: In a process for preparing cassiterite ores and the like for concentration, of the kind wherein the surface of the ore particles is metallized by reduction by means of hydrogen, the hydrogen is generated in the pulp by means of zinc alloyed with a small proportion of tin, for example under 1 per cent, or coated with a small proportion of tin precipitated on the zinc from solution.  The concentration may be effected simultaneously with or subsequently to the reduction treatment, by flotation or by an electrical method such as one depending on dielectric constant or hysteresis.
Patent GB-1151012-A (GB)
Title: Improvements in Drum Brakes.
IPC: F16D65/56
Filed: 1967-07-13
Abstract: 1,151,012. Internal shoe drum brakes. KELSEY-HAYES CO. 13 July, 1967 [14 July, 1966], No. 32394/67. Heading F2E. In an internal shoe drum brake, an automatic adjuster comprises an adjustable length strut interposed between a shoe and a fixed torque resisting member, the strut carrying a lever engaging the torque resisting member and being movable upon movement of the shoe in a direction away from the torque resisting member whereby to elongate the adjustable length strut. In Fig. 1 (not shown), a pair of shoes are interposed by two fixed double-acting hydraulic cylinders each shoe having an adjustable strut 101, Fig. 6, interposed between an abutment at one end and a torque resisting member 90 fixed to a backing-plate 25. The other end of each shoe is retained in bifurcated ends of the fixed torque resisting members. A pair of return springs are attached to hooks 87 and pins (not shown) on the webs of each shoe 43. Each variable length strut 101 is contained in a slot formed in the shoe web and is formed as a hollow threaded body, Fig. 3, containing a threaded shank 103 carrying a toothed wheel 113. A lever 121 is pivoted at 123 to the body 101 and has an arcuate end 127 biased against the torqueresisting member 90 by a spring 129. Application of the brake when the vehicle is travelling backwards causes movement of the shoe 43 in the direction R because of friction with the drum 23, spring 129 causing clockwise movement of the lever 121 so that its end engages a tooth in wheel 113 so as to elongate the strut and compensate for lining wear. Alternatively, the wheel 113 may be adjusted by means of a tool inserted through a hole in the backing plate 25. In Figs. 12 and 14, an alternative adjustable length strut 101 has a threaded shank 215 engaged by a nut 211 carrying a toothed wheel 209 which is engaged by a finger on a lever 193 resiliently coupled to a U-shaped lever 195 both of which are pivoted to the strut 101. A spring clip 229 presents unwanted rotation. In Fig. 7 (not shown), the adjustable length of strut 101 is biased towards the left against the torqueresisting member 90 by means of a spring attached to pin 123.
Patent GB-1519177-A (GB)
Title: Control of torsional deformation of elongate members
IPC: B66C13/02
Filed: 1975-08-02
Abstract: 1519177 Jibs FERRANTI Ltd 2 Aug 1976 [2 Aug 1975] 32403/75 Heading B8H [Also in Division G3] In order to increase the torsional stiffness of a crane jib 21 or other elongate member, without undue increase in weight, a torque tube (or rod) 31 is arranged coaxially with the jib and securely fastened thereto at its outer end, and the inner end of. the tube is turned, e.g. by hydraulic actuators 32, in a direction to oppose twisting of the jib. Displacement of one end of the jib relative to the other is measured either by an optical system (Figs. 4a-d, not shown) or by a rod 33 coupled to the outer end of the jib and to an angle resolver 35 and a rate of displacement transducer 36. The trandsucer signals control the actuators 32 to bring the torsional displacement between the jib ends to zero or to a limiting value.
Patent GB-921078-A (GB)
Title: A process for the preparation of alpha-halo-omega-lactones
IPC: C08G63/682
Filed: 1961-09-11
Abstract: Halogen containing polyesters are prepared by contacting the monomeric alphahalolactone of the formula <FORM:0921078/IV(a)/1> (wherein X is a halogen atom, R is a hydrogen atom or a C1-4 alkyl group and n is 2, 3 or 4) (see Group IV(b)) with boron trifluoride for a period of time sufficient to produce a polymer.ALSO:In a process for the production of alphahalolactones of the general formula:  <FORM:0921078/IV(a)/1> (wherein X is a halogen, R is a hydrogen atom or a C1-4 alkyl radical and n is 2, 3 or 4) an alpha-haloketone of the formula:  <FORM:0921078/IV(a)/2> is reacted with peracetic acid.  The structure of alpha-chlorcaprolactone is established by reacting the lactone with hydrobromic acid to give alpha-chloro-epsilon-bromocaproic acid and treating this with ammonia to give piperidine-2-carboxylic acid.  Halopolyesters (see Group IV(a)) are prepared by polymerization of the lactones.
Patent GB-855025-A (GB)
Title: Improvements in and relating to polymerisable epoxide compositions
Inventor: PHILLIPS BENJAMIN
IPC: C08G59/42
Filed: 1958-10-11
Abstract: A polymerizable composition comprises o, m or p-divinyl benzene dioxide and a polycarboxylic acid anhydride in an amount having 0,2 to 3 carboxyl equivalents per epoxy group; a polycarboxylic acid compound may also be present in amount having up to 1 carboxyl group per epoxy group, the total number not exceeding 3 and the acid always providing fewer carboxyl equivalents than the anhydride.  The compositions are converted to hard, infusible resins by heating to 25 to 250 DEG C., if desired in the presence of catalysts.  The polycarboxylic anhydrides may be of the formula XCO.O.CO, where X is 2 or more carbon atoms connected by single or double bonds and which may contain hydroxyl, nitro, chloro, iodo, bromo, and cyclic groups, as well as interconnecting oxydicarbonyl groups.  Mixtures of anhydrides may be used.  Many examples are given.  The poly carboxylic acids are of the same classes and the acid compounds include poylhydric alcohol esters which contain more than one carboxyl group per molecule.  The catalysts include mineral acids, sulphuric acids, metal halide Lewis acids, alkali metal hydroxides and amines, including aminophenols.  They may be added as solutions in organic solvents.  The uncured or partially cured compositions may be dissolved in solvents, e.g. xylene, methyl isobutyl ketone, butyl, ethyl and amyl acetates and toluene, particularly for applying surface coatings which are subsequently heat cured.  In the examples, the dioxides are mixtures of the three isomers containing ethyl styrene oxide as main impurity.  The hardeners are phthalic, succinic, glutonic, polyadipic and chlorendic anhydrides, mixtures of phthalic anhydric and sebacic acid, maleic anhydride and adipic acid, polyadipic anhydride and maleic acid, and of glutaric acid and the adduct of 1 mol of glycerol with 3 mols of succinic anhydride.
Patent GB-273347-A (GB)
Title: Improvements in and relating to dyestuff intermediates
IPC: C07C303/20
Filed: 1925-12-24
Abstract: 273,347. Thomas, J., Drescher, H. A. E., and Scottish Dyes, Ltd. Dec. 24, 1925. Sulphonic acids of 2-benzoylbenzoic acids; anthraquinone sulphonic acids. - Halogen-2-beuzoylbenzoic acids (other than (3<1>-nitro-4<1>-halogen)-2-benzoylbenzoic acids) are treated in the form of their salts with a sulphite or bisulphite at temperatures above 100‹ C., whereby the halogen is replaced, by tbe sulphonic group if the parent material contains more than one halogen atom only part of the halogen may be replaced. The products yield the corresponding anthraquinone sulphonic acids when treated with condensing agents such as oleum in the usual manner. According tn examples there are obtained (1) 4<1>-sulpho-2-benzoyl-benzoic acid and anthraquinone-2-sulphonic acid from 4<1>-chlor-2 benzoylbenzoic acid; (2) a sulpho-methyl-2-benzoylbenzoic acid and 1-methylanthraquinone-4- sulphonic acid from chlormethyl-2-benzoylbenzoic acid (made by condensing p-chlortoluene with phthalic anhydride); (3) a dichlordisulpho-2- benzoylbenzoic acid and a dichloranthraquinonedisulphonic acid from 3 : 4 : 5 : 6-tetrachlor-2- benzoylbenzoic acid; (4) a mixture, of sulphomethyl-2-benzoylbenzoic acids and a mixture of methylanthraquinonesulphonic acids from a mixture of chlormethyl-2-benzoylbenzoic acids (obtained from o-chlortoluene and phthalic anhydride); (5) a chlorsulpho-2-benzoylbenzoic acid and 1-chloranthraquinone-9-sulphonic acid from dichlor-2-benzoylbenzoic acid (from 3 : 6-dichlorphthalic anhydride and benzene).
Patent GB-342273-A (GB)
Title: Improvements in and relating to the spool boxes of cinematograph apparatus
IPC: G03B21/18
Filed: 1929-10-28
Abstract: 342,273. Kinematograph apparatus. MACDONALD, A. E. and BLUNT & McCORMACK, Ltd., 20, Bedford Street, Strand, London. Oct. 28, 1929, No. 32675. [Class 97 (i).] The film entering a spool box passes between fixed or hinged plates 1, 2 formed with fins 5, 6 on their adjacent faces to conduct heat from a burning film and prevent fire from reaching the interior of the box. Rollers 3, 4 and 7, 8 are provided.
Patent GB-959947-A (GB)
Title: Improvements in pre-fabricated building constructions for small dwellings and the like
IPC: E04B1/20
Filed: 1959-09-25
Abstract: 959,947. Prefabricated framed buildings. K. KENNY, and BANAGHER TILES Ltd. Dec. 28, 1960 [Sept. 25, 1959], No. 32740/59. Heading E1V. In a pre-fabricated building formed with stud-and-slab walls, the reinforced concrete posts 1, Fig. 4, forming the studs are each formed at or adjacent their upper ends with integral arms 4, 5 projecting on opposite sides, one of the arms 4 forming a pitched rafter or a crutch to support a pitched rafter 6, and the other arm 5 forming a projecting support for a soffit and for the attachment of a facia board 10. The projecting support has at least two bolts 9 cast therein for the attachment of the facia board. Brackets 16 are provided at the top of the posts and on the rafters 6 for attachment of tiling battens 12, 17. The posts 1 are grooved or rabetted to receive the wall slabs 3, window sections and door frames. A lining of wall boards 19 on studding 20 may be provided. In Fig. 7 the rafters are formed in two sections 6a, 6b partially supported by intermediate posts 21 each formed at its upper end with integral projecting arms 24, 25, one of said arms forming one section of a rafter or forming a crutch to support a section of a rafter and the other arm forming a support or crutch for the other section of a rafter. Certain rafter sections 6a, 6b may be supported intermediately by a beam 22 supported by posts 21.
Patent GB-484933-A (GB)
Title: Improvements in and relating to weather and draught excluders for doors, casement windows and the like
IPC: E06B7/232
Filed: 1936-12-01
Abstract: 484,933. Draught and weather excluders. CALDERWOOD, J. Dec. 1, 1936, No. 32956. [Class 20 (iii)] A draught and weather excluder for sills or sides of doors and casements consists of a channel-section part 11 and a resilient part 16 anchored therein at one end 18 and adapted to engage the edge of the door &c. 21 at the opposite end 17. The end 15 of one flange of the channel is inwardly bent over the end 18 of the resilient part and the end 17 of the resilient part extends downwardly outside the side 12 and its inturned end 14. The channel is held in an inclined position resting on or sunk in the sill and drain holes 22, 23 are provided in the parts as well as an outlet 22a in the sill. The resilient part may be hinged to the channel and pressed outwardly by a spring. The limb 13 of the channel may be bent back to form a, support.
Patent GB-834765-A (GB)
Title: Improvements in or relating to the production of alkali metal cyanides
IPC: F26B3/00
Filed: 1958-10-15
Abstract: <PICT:0834765/III/1> Alkali metal cyanide crystals wet with aqueous mother solution are dried by evaporating the water from the crystals with hot air at 400-800 DEG  F., while mixing the crystals to maintain the surfaces wet, until the average moisture content of the crystals decreases to less than 2%.  A slurry of 10% NaCN crystals in 90% liquor formed by evaporating a solution of NaCN is fed to rotary vacuum filter 10 and the wet filter cake 12 containing 12-13% moisture is scraped off by blade 16 into mixing conveyer 18.  Mixing conveyer 18 contains a pair of motor-driven horizontal parallel shafts rotating in opposite directions and carrying pitched blades so positioned that the blades on one shaft pass between the blades on the other.  Air from blower 62 is heated in gas-fired heater 66 and is fed through 20 into mixer conveyer 18 flowing countercurrent to the NaCN crystals, and passes out through enclosure 22 surrounding rotary filter 10 and exhaust 24 to a scrubber for NaCN dust removal. The NaCN crystals containing 5-10% moisture pass through screw 40 to cylindrical rotary drum drier 38 containing vanes, or tubes, secured inside to tumble the crystals.  Hot air is fed from 66 through 70 and hood 56 to drier 38 and is withdrawn through hood 58 and exhaust 60 to NaCN dust removal.  Drier 38 is slightly inclined to ensure progress of the NaCN crystals therethrough.
Patent GB-1471680-A (GB)
Title: Rotary kiln with an annular cooler
IPC: F27B7/40
Filed: 1974-07-25
Abstract: 1471680 Coolers for rotary kilns BUHLERMIAG GmbH 25 July 1974 32995/74 Heading F4B A rotary kiln 1 has an annular cooler at its discharge end comprising adjacent tubes 5 of substantially rectangular cross-section, the kiln wall having apertures 12 for leading material into the tubes 5 and each tube having an inlet shoot 13, a helical guide 14 and a discharge box 15 with an outlet spout 16. As shown, the interior of the kiln wall is provided with a ridged line 10 and paddles 11 for lifting and scattering material within the kiln. The kiln may have a girth ring radially outside the cooler. Fig. 2 (not shown), or axially beyond the cooler, Fig. 1 (not shown). The cooler tubes can be removed separately from the kiln and be interchanged or replaced without having to stop the kiln for any appreciable time or to remove other tubes.
Patent GB-632479-A (GB)
Title: Improvements in and relating to gas burners
IPC: F23D14/06
Filed: 1947-12-15
Abstract: 632,479. Gas burners. NEAT, Ltd., F. A., and ATHILL, L. C. H. Dec. 15, 1947, No. 33014. [Class 75(i)] A burner for butane gas comprises a mixing chamber 3 closed by a cylindrical cap 5 comprising an outer cylindrical portion merging into a frusto-conical portion at the top and having a series of radial slots 8 extending substantially over the full depth of the side of the cap and over the frusto-conical portion up to the point where said portion merges with the flat-top of the cap. A metal disc 9 is supported on the cap 5 and overlaps the slots 8 to break up the flames and to protect the slots from spillage from a vessel being heated. The disc 9 and the cap 5 are attached to the mixing chamber 3 by a bolt 10 passing through the latter.
Patent GB-190358-A (GB)
Title: An improved rubber tile
IPC: E01C5/18
Filed: 1921-12-12
Abstract: 190,358. Rogers, H. B. Dec. 12, 1921. Flooring and paving tiles.-Rubber tiles a for waterproof floors, pavings and roads, are provided with curved metal springs b as shown so that when the tile is secured to the foundaton by means of screws &c. passing through the hole at the junction of the two springs, the edges of the tile are prevented from buckling away from the floor &c. The tiles are constructed by placing the metallic springs between two sheets of rubber and vulcanizing the latter. The two sheets of rubber may contact through holes d left in the springs for that purpose.
Patent GB-284973-A (GB)
Title: Improvements in or relating to rotary pumps
IPC: F04C19/00
Filed: 1927-12-10
Abstract: 284,973. Siemen, O., and Hinsch, J. Dec. 10, 1927. Centrifugal Sprengel pumps; starting, facilitating. -A pump of the vaned rotor and liquid annulus type used for extracting air from siphonic conduits or the suction pipes of pumping plants is fitted with a stop cock in the inlet or outlet which is automaticallyclosed when liquid enters the pump. As shown the cock b is connected to a piston d in a cylinder c with a pipe connection to the pump casing and is moved by the liquid pressure against the action of a weight g and spring f. When the cock is fitted to the suction side of the pump the plug is formed with a small duct which is open when the normal aperture is closed so that leakage air may be pumped without substantial discharge of liquid.
Patent GB-1262099-A (GB)
Title: Internal combustion engine inlet manifold and carburettor assembly
IPC: F02M1/00
Filed: 1969-07-03
Abstract: 1,262,099. I. C. engine inlet manifolds. CITROEN S.A. (AUTOMOBILES CITROEN BERLIET PANHARD). July 3, 1969 [July 8, 1968], No. 33527/69. Heading F1B. A chamber 2 in an inlet manifold 1 supplied by a carburetter 8 is defined in part by the substantially planar miner surfaces of two side walls 4a and 4b connected by a curved wall 5. The angle between the planar inner surfaces does not exceed 90 degrees and a top inlet 6 is provided to the chamber 2. A plurality of passages 9a to 9d extend from the chamber 2 and the entrance portions of the passages converge towards the axis 14 of the inlet 6. The areas of the curvature of the wall 5 and the inlet 6 are substantially coincident. The cross-sections of the passages 9a to 9d change from rectangular with rounded corners at the entrance portions to circular at the outlets. The outlets of the passages 9a-9d may be in the same plane, Fig. 4 (not shown). A heating duct 17, Fig. 2, may be provided beneath the chamber 2, communicating passages (18), Fig. 1 (not shown), being provided beneath the passages 9a to 9d. The heating duct may be provided in a casing fixed beneath the manifold 1.
Patent GB-326825-A (GB)
Title: Improvements in and relating to the production of moulded articles
IPC: C04B28/00
Filed: 1928-11-16
Abstract: 326,825. Bell's United Asbestos Co., Ltd., Cann. J. A., and Harrap, E. R. Nov. 16, 1928. Compositions containing zinc oxide and zinc sulphate.-A mixture of 60 parts of plaster of Paris, 8 parts of zinc sulphate and 10 parts of zinc oxide is moulded under heat and pressure in the substantial absence of added water, a zinc oxysulphate being formed. Waterproofing, filling and colouring materials may be added.