baber/WOPTO huggingface dataset:
Patent GB-664235-A (GB)
Title: Improvements in or relating to dust extraction plants
IPC: A47L9/10
Filed: 1949-12-01
Abstract: 664,235. Gas filters. POWER-GAS CORPORATION, Ltd., and ASHMAN, R. Dec. 1, 1949, No. 30841/49. Class 8 (ii) In a gas filter comprising a plurality of cells each housing a plurality of fabric filter bags and surmounting a hopper having a dust-laden gas inlet 81 Fig. 24, each cell is made up of standard panels viz., bottom panels 31 having apertures 32 to receive the open ends of the inverted filter bags and being of width equal to that of end panels 57, 63 also that of roof panels 67, and side panels 41, 45, 54, 56 having apertures 42, 46 to receive gas outlets and inspection doors respectively ; the panel 45 also being adapted to receive bag shaking mechanism 89. Each hopper comprises flanged end panels 73, a side panel 78 and a side panel 80 having a manhole 83 and the gas inlet 81. The panels have flanges by which they are secured together by bolts or U-shaped clamps, and end panels 57, 63 Fig. 22 form partitions between adjacent cells. The bag cleaning mechanism not shown comprises cranked shafts mounted in bearings in opposite side panels of each cell and from which the bags are suspended. The shafts are rocked on closing the gas outlet 42 of the particular cell being cleaned. The cells are cleaned in either continuous or interrupted sequence. Up to at least thirty-five different forms and sizes of plant may be constructed from two forms of standard bottom panels, seven forms of standard side panels, four forms of end and two of roof panels, and two hopper end and three hopper side panels.
Patent GB-1490089-A (GB)
Title: Turbo-alternator plant
IPC: F02G5/02
Filed: 1974-07-12
Abstract: 1490089 Steam turbine electricity generating plant HAWTHORN LESLIE (ENGS) Ltd 19 June 1975 [12 July 1974] 30962/74 Headings F1Q and FIT A turbo alternator plant comprises a steam turbine 11 with a vertical rotor, the rotor forming a composite with a (2-pole) alternator rotor 10 above, the composite being carried by a bearing 14 in an exhaust steam passage above a condensor 12. The bearing 14 may be a combined foot-step and journal bearing, water-lubricated by feed-water from the condenser 12 pumped through a filter 19. Two grease-lubricated bearings (not shown) also support the rotor. The turbine speed is governed to 3600 rpm (to give a 60Hz current) e.g. by a steam supply throttle 15 and a turbine by-pass valve 16. The steam is generated in a waste heat boiler 8 heated by the exhaust gases of an I.C. engine 9.
Patent GB-428686-A (GB)
Title: Current supply system for an alternating current arc
IPC: G05F1/32
Filed: 1933-11-07
Abstract: 428,686. Arc supply systems. BRITISH THOMSON - HOUSTON CO., Ltd., Crown House, Aldwych, London.-(Assignees of Allgemeine Elektricitõts-Ges.; 2, Friedrich Karl-Ufer, Berlin) Nov. 7, 1933, No. 30980. Convention date, Nov. 7, 1932. Drawings to Specification. [Class 38 (iv)] An alternating-current arc is supplied with current through series-connected double chokes in each phase, each part of the choke being oppositely magnetized by continuous-current to about saturation point. The alternating- current ampere-turn effect is greater than that of the continuous-current to an extent such that the change of flux due to one half wave lies between opposite bends of the magnetization curve, the output of each choke part being thereby approximately half the phase output. In order to prevent harmonics from affecting the continuous-current winding, this winding is connected in open delta on a three phase system and the open ends may be bridged by a condenser, or a closed delta-connected tertiary winding may be employed. Reference has been directed by the Comptroller to Specification 272,218, [Class 38 (iv)].
Patent GB-171037-A (GB)
Title: Improvements in and connected with motor control systems
IPC: H02P7/30
Filed: 1920-11-02
Abstract: 171,037. Igranic Electric Co., Ltd., (Cutler-Hammer Manufacturing Co.). Nov. 2, 1920. Systems involving transformers and vapour rectifiers. - Direct-current motors are run on alternating-current mains by arranging a rectifier R, Fig. 1, to furnish direct current to the terminals of the motor M, and a variable inductance device 9 to control the supply of alternating-current in response to the back electromotive force of the motor. The motor, in this modification a series machine, receives rectified current from the rectifier anode 1 and the mid-point of a main transformer T, and its terminals are also connected through a hand-rheostat switch 15 to a direct-current coil 11 wound in a known manner so as to influence the inductance of the device 9. In starting, the rheostat arm is set on the last contact and when the motor has run up to speed is moved further so as to short-circuit the variable inductance device. For shunt-wound motors, an auxiliary generator and an additional rectifier and inductance device are added to regulate the motor field.
Patent GB-1150766-A (GB)
Title: Improvements in or relating to Insulated Electric Conductors
Inventor: IWAKURA SEICHI
IPC: H01B13/06
Filed: 1966-07-11
Abstract: 1,150,766. Coated electrical conductors. SUMITOMO ELECTRIC INDUSTRIES Ltd. 11 July, 1966, No. 31030/66. Heading B2K [Also in Division H1] Foamed plastics insulated electrical conductors are manufactured by coating a solution of polyethylene or polypropylene over the electrical conductor which is then dried so that the coating becomes white and thereafter dipped in monohydric or polyhydric alcohol heated to a temperature not below the m.pt. of the resin to cause the coating to foam, rinsed and cooled with water. In the Example, a copper conductor is coated with high density polyethylene which is foamed by immersing the coated conductor in a clycerine path at 180‹C.
Patent GB-233271-A (GB)
Title: Improvements relating to suction dredges of the rotary cutter type
IPC: E02F3/92
Filed: 1924-12-29
Abstract: 233,271. Lobnitz & Co., Ltd., and Bedgood, H. O. Dec. 29, 1924. Suction apparatus. -In a suction dredger provided with revolving cutter blades, grass, reeds, rushes, &c. which tend to obstruct the inlet of the suction pipe, are cut by one or more shearing blades 7 mounted on and revolving with the shaft 2 which drives the cutters 3, the blades 7 coacting with bars 4 fitted in the suction pipe inlet to make a drawing cut. The blades 7 are secured to arms, inclined towards the bars 4, by bolt and slot connections 10 so as to be adjustable towards the bars 4, which bars may have renewable cutting edges.
Patent GB-1425029-A (GB)
Title: Azo dyes derived from thiophene diazo components
IPC: C09B29/033
Filed: 1972-07-03
Abstract: 1425029 Azo dyes derived from thiophene diazo components IMPERIAL CHEMICAL INDUSTRIES Ltd 1 June 1973 [3 July 1972] 31051/72 Heading C4P [Also in Division C2] Novel dyestuffs of the formula (wherein the thiophene nucleus carries at least one non-ionic electron-withdrawing substituent and optionally one or more hydrocarbon radicals which may themselves carry substituents; E is the residue of a coupling component of the arylamine, naphthol, phenol, acylacetarylamide, aminopyrazole, 5-hydroxypyrazole carrying an aliphatic, aromatic or heterocyclic radical in the 1-position, or hydroxy pyridone series and n is 1 or 2, the dyes being free from SO 3 H groups and each of the CO 2 H groups being directly attached to the thiophene nucleus or to an aromatic or heterocyclic nucleus present in E or to a saturated carbon atom which forms part of a side chain present in E) are prepared by diazotizing an appropriate 2-amino-thiophene and coupling with an appropriate coupling component. They may be used for dyeing (in yellow to green shades) synthetic textile materials, e.g. cellulose acetates, polyamides, polyacrylonitrile, polyurethanes and polyesters, and their blends with natural fibres such as wool and cellulosic fibres.
Patent GB-536430-A (GB)
Title: Improvements in or relating to reciprocating pumps
IPC: B41D3/00
Filed: 1939-11-30
Abstract: 536,430. Reciprocating pumps for molten metal &c. LINOTYPE & MACHINERY, Ltd., GERRARD, W., and HARRIS, W. Nov. 30, 1939, No. 31106. [Class 102(i)] A reciprocating pump 1, 5 for discharging' molten metal or other liquid 3 through a spout 4 into a mould or other receptacle comprises a byepass valve 20 in the pump cylinder 1 which is opened mechanically after delivery of a pre-determined quantity of liquid. For manual operation of the pump and the byepass valve, an adjustable stop 11 on the pump lever 9 engages a rod 14 connected to a lever 16 on a rod 17 having a lever 18 attached to the valve rod 19. The valve 20 is closed by means of a handle 21 or the rod 17. For power operation of the pump and the byepass valve, a shaft 23 driven by an electric motor 22 carries a worm 25 in mesh with a worm wheel 26 mounted on a shaft 27 and provided with a projecting stud 28 which is connected by a link 29 with the pump lever 9. The worm wheel 26 also carries a cam-disc 30 with a recess 31 to receive a roller 32 on one end of an arm 33 which is loosely pivoted on the rod 17. The roller 32 is held against the disc 30 by a coiled spring 36 on the rod 17, and when it falls into the recess 31 an extension 34 of the arm 33 moves a rod 35 which opens a switch controlling the motor 22 so that the worm wheel 26 and the pump 1, 5 stop. The roller 32 may be withdrawn from the recess 31, and the worm wheel and pump re-started, on operation of the handle 21 to close the valve 20, by providing the valve operating rod 17 with an arm 38 which engages a pin or stud 37 on the roller arm 33.
Patent GB-692512-A (GB)
Title: Improvements relating to reduction and reversing gear for ship propulsion
IPC: F16H3/14
Filed: 1950-12-21
Abstract: 692,512. Reverse-gear. SUBERKRUB, F. Dec. 21, 1950, No. 31186/-50. Class 80 (ii). A reduction and reversing gear for ship propulsion comprises a driving shaft, a reversing shaft and a driven shaft all parallel with one another, a toothed wheel on the driven shaft, two pinions on each of the driving and reversing shafts, one pinion on each shaft constantly meshing with the wheel on the driven shaft, the other pinions mutually engaging, the pinion on the driving shaft which meshes with the wheel on the driven shaft and one of the other three pinions both being rotatably mounted on, but clutchable to, their shafts the remaining two pinions being fixed to their shafts and the supporting bearings being arranged outside the gear wheels, pinions and clutches. As shown a pinion 2 is clutchable at 4 to a driving shaft 1 and engages a gear wheel 3 on a propeller shaft 5. A reversing shaft 8 carries a pinion. 9 meshing with the wheel 3 and a pinion 7 meshing with a pinion 6 rotatably mounted on the shaft 1 but clutchable thereto at 6a.
Patent GB-875187-A (GB)
Title: Electrical temperature control system
Inventor: ROSE KENNETH MILES
IPC: G05D23/22
Filed: 1956-10-12
Abstract: 875,187. Electric control systems. TELCON METALS Ltd. Oct. 14, 1957 [Oct. 12, 1956], No. 31200/56. Class 40 (1). In a system for subjecting a chamber to a desired temperature treatment comprising a predetermined rate of heating, period at the maximum or soak temperature and rate of cooling, a thermocouple in the chamber is connected in series with a voltage which varies in a predetermined manner to control the heating and cooling and a timing device controls the period for which the soak temperature is maintained. As shown, closure of main switch S1- drives motor M adjusting slider S which supplies a voltage sufficient to cause operation of controller D to begin heating the chamber. As the slider moves it closes micro-switch S2 preparing the timing circuit and then progressively reduces the voltage from potentiometer P. Meanwhile the output of thermocouple C increases. Provided the total output is below a predetermined level the controller heats the chamber. If it rises above it the controller cuts out the heating source. Thus the rate of heating is controlled by the speed of the motor. When the slider reaches the end of its travel the thermocouple voltage alone is adequate to cut out the controller and the soak temperature is maintained. If the temperature falls below the soak temperature, thermocouple C again operates the controller to switch on the heat. Operation of microswitch S3 energizes relay Ry which. latches and de-energizes motor M and sets motor-driven timer T in operation to time the soak period. At the end of the period the timer sets motor M running in reverse and rate of cooling is controlled in the same manner as the rate of heating.
Patent GB-1248720-A (GB)
Title: Improvements in or relating to machines for reducing the size of solid material fed thereto
IPC: B02C13/09
Filed: 1970-06-26
Abstract: 1,248,720. Impact pulverizers. HAZEMAG HARTZERKLEENERUNGS - UND - ZEMUNT MASCHINENBAU G.m.b.H. 26 June, 1970 [8 July, 1969], No. 31206/70. Heading B2A. A beater mill comprises a rotor 3 having arms 2 which shatter material fed in at 4 impelling it against surfaces formed by known arrangements of impact plates 5, whence the material drops into an adjustable trough 9 formed by grinding elements 10 and is further pulverized by the beater arms 2. The size of product is adjusted by varying the position of the elements 10 by a threaded rod 13 which can be rotated to vary the position of support members 11 for the elements 10 relative to the rotor. The support members 11 are mounted on a movable housing 19 which can be run on rails 21 to facilitate replacement of the elements 10. An edge of each member 11 is stepped and a rib is welded on each step. Each element 10 has a slot 16 to accommodate the rib 15 to where it is fitted and the elements are restrained by being overlapped. The uppermost element is held in position by a spreader bar 17.
Patent GB-1044769-A (GB)
Title: Production of chlorine dioxide from sodium chlorate feed stock containing sodium chloride
IPC: C01B11/02
Filed: 1964-08-04
Abstract: A process for the production of chlorine dioxide comprises electrolysing a solution of sodium chloride, the extent of electrolysis being controlled so as to obtain a solution containing sodium chlorate and non-electrolysed sodium chloride at a desired concentration, and feeding the resultant solution to a known chlorine dioxide generator, thereby to generate chlorine dioxide therefrom. The initial solution subjected to electrolysis may comprise a chromate, a mineral acid or a soluble calcium salt, and the resultant solution containing sodium chlorate and non-electrolysed sodium chloride may be subjected to a purifying treatment by addition of at least one of sodium hydroxide, sodium carbonate, a soluble barium salt or urea, and filtered to remove impurities, or may be subjected to partial evaporation to cause crystalization of excess sodium chloride, followed by filtering.  The solution fed to the chlorine dioxide generator preferably comprises 100-750 gm sodium chlorate and 20-250 gm sodium chloride per litre of water.ALSO:A process for the production of chlorine dioxide comprises electrolysing a solution of sodium chloride, the extent of electrolysis being controlled so as to obtain a solution containing sodium chlorate and non-electrolysed sodium chloride at a desired concentration, and feeding the resultant solution to a known chlorine dioxide generator, thereby to generate chlorine dioxide therefrom.  The initial solution subjected to electrolysis may comprise a chromate, a mineral acid or a soluble calcium salt, and the resultant solution containing sodium chlorate and non-electrolysed sodium chloride may be subjected to a purifying treatment by addition of at least one of sodium hydroxide, sodium carbonate, a soluble barium salt or urea, and filtering to remove impurities, or may be subjected to partial evaporation to cause crystallization of excess sodium chloride, followed by filtering. The solution fed to the chlorine dioxide generator preferably comprises 100-750 gm. sodium chlorate and 20-250 gm. sodium chloride per litre of water.
Patent GB-832754-A (GB)
Title: Improvements in or relating to kilns
Inventor: MCNEIL WILLIAM
IPC: C12C1/15
Filed: 1955-11-04
Abstract: 832,754. Drying kilns. BRITISH WEDGE WIRE CO. Ltd., and ASSOCIATED BRITISH MALTSTERS Ltd. Feb. 4,1957 [Nov. 4, 1955], No. 31531/55. Class 34(2) The perforate floor 10, Fig. 1, of a malt &c. kiln is tilted about an axis 13 by a hydraulic jack 14 to discharge the malt through an opening normally closed by a hinged cover 24. In a modification, the malt is discharged through doors 28, Fig. 2 in the floor opened through linkage 36, 37, 38 operated by a shaft 39.
Patent GB-1248028-A (GB)
Title: Hand tool having a storage compartment
IPC: B26B1/08
Filed: 1970-06-30
Abstract: 1,248,028. Knives. STANLEY WORKS. 30 June, 1970 [13 Aug., 1969], No. 31636/70. Headings B4B and B4K. A knife comprises a substantially hollow handle formed from side walls 1, 2 and a tray 15 for spare blades pivotally mounted within the handle so that it may be moved between open and closed positions for the removal or insertion of blades, a catch 27 being formed on the tray for engagement with a lip on the handle and being exposed for manual actuation to release the catch. The tray 15 is made from a moulded plastics material and is integrally formed with a flexible arm 25 having the catch 27; a stop member 23 is provided on the tray. A knife blade 4 is mounted in a slidable carriage.
Patent GB-1174746-A (GB)
Title: Wall Hanger for a Stringed Instrument
Inventor: FRIEDE DONALD CHARLES
IPC: G10G5/00
Filed: 1968-07-03
Abstract: 1,174,746. Wall hanger. D. C. FRIEDE. 3 July, 1968, No. 31688/68. Heading A4B. A wall hanger for a guitar or like stringed instrument (25) with a body (27) and a neck (26) comprises a wall mounted plate 12, carrying a pair of forwardly and upwardly extending fingers 13 which engage opposite sides of the neck (26) to suspend the instrument (25), and a bearing plate 21 with a central boss 22 against which the back of the body (27) bears, the bearing plate 21 being suspended from the wall plate 12 by a flexible chain 24. In use the fingers 13 engage either beneath shoulders (30) on the neck (26) or beneath string tensioning pegs (29). The fingers 13 are selectively engaged in sockets 15 in a member 14 fitted into the wall plate 12. The chain 24 is suspended from a pin 35 supported in recesses (34) in spaced brackets 33 carried by the wall plate 12, the effective length of the chain 24 being adjustable by suitable selection of the chain link through which the pin 35 is passed.
Patent GB-475697-A (GB)
Title: Improvements in spring assemblies for upholstery
IPC: A47C23/043
Filed: 1936-11-19
Abstract: 475,697. Helical springs. DAVIS, J. M., and PULLMAN SPRING-FILLED CO., Ltd. Nov. 19, 1936, No. 31700. [Class 108 (iii)] [Also in Group XIV] The end coils of upholstery springs. are extended to one side 4a and formed into terminal loops 4b.
Patent GB-934004-A (GB)
Title: Improvements in and relating to bearings
IPC: F16C33/04
Filed: 1961-09-04
Abstract: 934,004. Bearings; lubricating. GLAVERBEL. Sept. 4, 1961 [Sept. 6, 1960], No. 31783/61. Classes 12 (1) and 12 (3). A bearing 1 for a receptacle containing molten substance 3 such as glass or metal, has a counter-bored sleeve 7, the larger inner bore of which is screw-threaded at its end to receive an annular member 9 and so forms an annular chamber 5 when a shaft 2 passes therethrough. The bearing is mounted in a wall 4 of the receptacle and a plate of refractory material 10 is provided to insulate the member 9 from heat loss, the bearing being lubricated by a molten substance, e.g. glass or metal, which remains liquid at a temperature below that of the molten substance 3. The molten glass, or metal, is supplied under pressure through a conduit 6 which passes through the wall 4 and the sleeve 7 and into the annular chamber 5. Thus the molten material 3 is prevented from penetrating through the bearing. Fluid tightness is further ensured by including packing washers 11, Fig. 2, of glass fibres, for example having a sleeve 12 therebetween. The sleeve may be made from molybdenum, or tungsten, for example and may have a protective coating thereon which may be of a noble metal or an oxide, for example. The shaft 2, which is made from refractory metal, may also be coated. The wall 4 may be heated to prevent congealing of the lubricant which escapes on the outer side of the bearing.
Patent GB-193938-A (GB)
Title: A new improved spring mattress
IPC: A47C31/04
Filed: 1921-11-28
Abstract: 193,938. Iles, A. S. Dec. 8, 1921. Draining-appliances for kitchen usc.-A draining-board e is hinged at d to clamping-means such as a for detachably securing the device to a fixed part such as a sink b, and is held in position by a hinged strut f the upper end of which works in a guide formed by attaching a strip g to the underside of the board. A locking-lever h pivoted near the upper end to the strip g abuts against the strut f and holds the device in the position of use.
Patent GB-730058-A (GB)
Title: New nitrogen containing trithione derivatives, i.e. derivatives of 1.2-dithiol-5-thione, and a method of making same
IPC: C07D339/04
Filed: 1952-12-16
Abstract: Nitrogen-containing derivatives of 1,2-dithiol-5-thiones (referred to as trithiones) are prepared by condensing trithionium salts with organic nitrogen compounds having two hydrogen atoms on the nitrogen atom.  The salts are preferably alkosulphates or alkohalogenides and suitable nitrogen compounds are amines, aromatic aminoacids, hydroxylamine, hydrazines, hydrazides and hydrazones.  Condensation with hydrazones or with a mixture of hydrazine and a carbonyl compound results in mixed azines.  Other products are imides, oximes and hydrazones.  The reaction may be effected in a solvent or by melting and amine salts or other bases are preferably added as catalysts.  In the examples, starting with anethol trithione methosulphate, there are prepared: (1) 5-phenyl - imido - 3 - (p - methoxy - phenyl) - 1,2-dithiol from aniline; (2) 3-(p-methoxy phenyl)-1,2-dithiol-5-one oxime from hydroxylamine acetate; (3) 3-(p-methoxy phenyl)-1,2-dithiol-5-one phenylhydrazone from phenyl hydrazine; (4) bis - [3 - (p - methoxy phenyl) - 1,2 - dithiol-5-one]-azine using hydrazine; (5) benzal-3-(p - methoxy phenyl) - 1,2 - dithiol - 5 - one azine from a mixture of benzaldehyde and hydrazine or from benzaldehyde-hydrazone; (6) N-methyl benzthiazolone - 3 - (p - methoxy phenyl) - 1,2-dithiol-5-one azine from N-methyl benzthiazolone hydrazone; (7) pyruvic acid-3-(p-methoxy phenyl) - 1,2 - dithiol - 5 - one azine using pyruvic acid; (8) 3-(p-methoxy phenyl)-1,2-dithiol-5-one benzoyl hydrazone from benzhydrazide; (9) 3-(p-methoxy phenyl)-1,2-dithiol - 5 - one - 8 - pyridoyl hydrazone from pyridine - g  - carboxylic acid; (10) 5 - (p-carboxy phenyl) - imido - 3 - (p - methoxy phenyl) - 1,2 - dithiol from p - aminobenzoic acid; (11) 5-(p-dimethyl-amino phenyl)-imido-3 - (p - methoxy phenyl) - 1,2 - dithiol using p-amino-dimethylaniline.  In example (12), the dimethyl sulphate salt of 5-thione-3-(p-methoxy phenyl)-1,2-dithiol is reacted with p-amino salicylic acid to give 5-p-salicylyl-imido-3-(p-methoxy phenyl) - 1,2 - dithiol; (13) 5 - (21 benzthiazolyl imido) - 3,4 - benzo - 1,2 - dithiol is prepared from benzotrithione methosulphate and amino benzthiazole; (15) 5-salicylyl-imido-3-phenyl-1,2-dithiol is prepared from phenyltrithione methosulphate and p-aminosalicylic acid.  Lists of other trithionium salts and nitrogen compounds are given and the mixed azine from anethol trithione and pyroracemic acid is mentioned as a choleretic.  The products of the invention include compounds which are useful as drugs, dyes, fuel additives and chemical intermediates.