baber/WOPTO huggingface dataset:
Patent GB-289278-A (GB)
Title: Improvements relating to chart indicators for weighing scales
IPC: G01G23/22
Filed: 1927-06-15
Abstract: 289,278. International Business Machines Co., Ltd., (Dayton Scale Co.). June 15, 1927. Right to Patent relinquished. Computing-apparatus. - In a weighing scale wherein, a value chart bearing the value designations in columns is associated with a price band arranged adjacent the chart, each column of the chart is of a different colour from an adjacent column and each price on the price band is of a different colour from. the adjacent price, the object being to assist the eye in passing from the price band to the value chart. As shown applied to a weighing scale of the type embodying a computing drum 16 the adjacent columns of value designations are of distinctive colour as indicated bv shading lines, and the price designations on the pricel strip 24 are correspondingly coloured.
Patent GB-805536-A (GB)
Title: Improvements in or relating to stop arrangements for use in wagon marshalling systems
Inventor: INGRAM DAVID JOHN
IPC: B61K7/20
Filed: 1955-06-03
Abstract: 805,536. Railway stops. GENERAL ELECTRIC CO. Ltd. June 4, 1956 [June 3, 1955], No. 16044/55. Class 104 (2). A wagon marshalling system has means 6 for moving a stop member 4 which engages the wheels of a wagon from stopping position to allow a pair of wheels such as the front pair to pass; a front wheel actuates a reset lever 7 to return the stop member to stopping position, the means 6 are actuated to move the stop member to allow the rear wheels to pass, and a rear wheel actuates the reset lever to return the stop member to stopping position. The stop member 4 which is pivoted by lever 17 to angle levers 18 pivoted at 20 in a recess below the track is moved to inoperative position forming part of the track by a lever 6 connected to a pivoted lever 24 to a push-rod 23 pivoted to the levers 18. The stop member is reset by the lever 7 which comprises a pair of levers 29, 30 pivoted at the centre and supporting by a pin 28 at the lower ends a lever 26 pivoted in the recess and engaging a pin 22 on the levers 18. In operation, wagons moved by a device 1 along tracks 2 between tracks 3 are arrested by a stop 4 engaging the rear wheel of the leading wagon. A second device 5 comprising front and rear trolleys 8, 9 is moved along tracks 2 until a projection 11 on the front trolley 8 strikes the lever 6 and lowers the stop; the rear wheel as it passes strikes the reset lever 7. A limit switch is operated to start a motor to drive the device 1 to move forward the wagons. The leading wagon is arrested by the stop 4. A stop 12 on the rear trolley 9 strikes the operating lever 6 to lower the stop and allow the front wheels to pass over it.' A flange on a front wheel strikes the lever 7 to reset the stop 4 which arrests the rear wheel of the wagon. The wagons may be forwarded by gravity and the lever 6 actuated by an electric motor drive controlled by an operator. Specification 774,591 is referred to.
Patent GB-654676-A (GB)
Title: Enclosure air conditioning mechanism
IPC: B64D13/08
Filed: 1946-03-21
Abstract: 654,676. Cooling air. GARRETT CORPORATION. March 21, 1946, No. 16074/48. Convention date, March 16, 1945. Divided out of 654,622. [Classes 29 and 64(iii)] [Also in Group X] Air supplied by a compressor (not shown) to an enclosure, e.g. an aircraft cabin, is first cooled in a heat exchanger 22d with air passages and interspaces for coolant air, and is further cooled by driving a turbine 39d coaxial with an inlet 30d and an outlet 36d for the coolant air, which is cooled by driving a turbine 61 in the inlet and is accelerated in the outlet by a fan 41d driven by the two turbines. The Specification as open to inspection under Sect. 91 comprises also the subjectmatter of Specification 654,622 and 654,678. This subject-matter does not appear in the Specification as accepted.
Patent GB-237573-A (GB)
Title: Method of manufacturing keten
IPC: C07C45/89
Filed: 1925-06-22
Abstract: A catalytic material for the production of keten by heat decomposition of acetone or acetic anhydride is prepared by making dry Portland cement into a paste with hot dilute sulphuric acid and moulding it into cubes which are then dried and baked.ALSO:Keten is obtained by the decomposition under heat of acetone or acetic anhydride in the presence of metallic sulphates which are not decomposed by heating to a temperature of less than 700 DEG  C., e.g. the sulphates of chromium, manganese, aluminium, calcium, barium, strontium, magnesium and silver.  The sulphates, of which aluminium sulphate is most effective, are mounted on a carrier such as asbestos.  Another suitable material is prepared by making dry Portland cement into a paste with hot dilute sulphuric acid and moulding it into cubes which are then dried and baked. According to the example, keten is prepared by passing acetone or acetic anhydride in the absence of air over aluminium sulphate at a temperature of about 635 DEG  C.; the starting material may be used in the liquid or vapour form and is advantageously preheated.  The Specification as open to inspection under Sect. 91 (3) (a) extends to the production of other ketens by the decomposition of suitable substances in the presence of materials which prevent the destruction of the product. This subject-matter does not appear in the Specification as accepted.
Patent GB-372123-A (GB)
Title: Process for the manufacture of vat dyestuffs of the anthraquinone series
IPC: C09B1/467
Filed: 1931-06-02
Abstract: One molecular proportion of a monoalkyldihalogen - 1 , 3 , 5-triazine or a monaralkyldihalogen - 1 , 3 , 5-triazine or a dihalogen - 1 , 3 , 5-triazine, further substituted by a hydroaromatic residue is reacted at an elevated temperature with two molecular proportions of an aminoanthraquinone or a nuclear substitution product thereof.  A suitable organic solvent (other than an aromatic hydroxy body) and an acid-fixing agent may be p  present.  The products dye in greenish and fast yellow shades which are clearer, lighter and more greenish than those of the parent Specification and of Specification 205,525, [Class 2 (iii), Dyes &c.].  In examples, 2-aminoanthraquinone (2 mols.) is condensed with (1) 2-methyl , 4 , 6 - dichloro-1 , 3 , 5 - triazine (1 mol.) (dyes greenish-yellow), (2) ethyldichloro-1 , 3 , 5-triazine (dyes greenish-yellow), (3) cyclohexyldichloro-1 : 3 : 5-triazine (dyes yellow); 1 - amino - 4 - benzoylaminoanthra quinone (2 mols.) is condensed with N-butyldichloro-1 , 3 , 5-triazine (1 mol.) (dyes blueish-red); 1 - amino - 4 - methoxyanthraquinone (2 mols.) is condensed with benzyldichloro-1 , 3 , 5-triazine (1 mol.) (dyes orange); 1-amino-5-benzoylaminoanthraquinone (2 mols.) is condensed with ethyldichlortriazine (1 mol.).  Specification 307,947, [Class 2 (iii), Dyes &c.], also is referred to.  Monaralkyl- and monohydroaryldichlortriazines are prepared by reacting upon cyanuric chloride with an aralkyl- or hydroaryl-magnesium bromide according to Grignard's reaction.
Patent GB-1136091-A (GB)
Title: Improvements in fluid-pressure non-return valves
Inventor: STRONG HENRY JAMES
IPC: F16K15/06
Filed: 1965-04-15
Abstract: 1,136,091. Valves. GOBLIN (B.V.C.) Ltd. 25 Feb., 1966 [15 April, 1965], No. 16213/65. Heading F2V. Non-return valve particularly for the pneumatic handling of granular or powdered materials comprises a spring-loaded, axially movable head 6 seated in a valve body provided with an inlet 1 and an outlet 2 having substantially equal cross-sectional areas and an intermediate portion 3 of greater cross-sectional area, the valve head being displaceable into the portion 3, and the cross-sectional area defined by the periphery of the valve head and the wall of the portion 3 being substantially equal to the cross-sectional area of the inlet 1 or outlet 2. The valve has a convex face and a concave or planar rear surface and is provided with a stem 7 made from a material which requires no lubrication. The spring 9 biasing the valve head abuts against a spider 8.
Patent GB-591098-A (GB)
Title: Improvements in or relating to high frequency electrical communication systems
IPC: H04K3/00
Filed: 1941-12-16
Abstract: 591,098. Wireless signalling; frequency and phase modulation. STANDARD TELEPHONES & CABLES, Ltd., CHATTERJEA, P. K., and HOUGHTON, L. W. Dec. 16, 1941, No. 16265. [Class 40 (v)] Signals are transmitted as short trains of damped waves having constant train frequency, the wave frequency or phase being modulated by the signals to be transmitted. The initial amplitude of the trains is also modulated by the signal so that reception is obtained on any amplitude modulation receiver tuned to the wave frequency or to side frequencies removed therefrom by multiples of the train frequency. As shown in Fig. 5, the wave generator is a back-coupled valve 6, to the tuned circuit 7 of which is connected a reactance valve 9 acting as a variable capacity. The capacity valve is determined by the grid voltage of the valve 9 which is varied by the input signal amplified by a valve 10. The generator 6 is alternately started and stopped by impulses applied to its grid from a valve 8, with the result that trains of waves are emitted from the aerial A, the train frequency being constant and determined by the impulses from the valve 8. The waves will be of varying frequency owing to the control exercised by the reactance valve 9 ; and their initial amplitude will vary according to the relation between the variable instantaneous period of the wave and the constant width of the pulses. Specifications 579,126 and 582,405 are referred to.
Patent GB-397447-A (GB)
Title: Improvements in closures of vacuum-jacketed flasks
IPC: A47J41/00
Filed: 1933-06-06
Abstract: 397,447. Stoppers for vacuum flasks. MITTELBACH, R. and MITTELBACH, A., (trading as MITTELBACH & CO., C.), 1, Hauptstrasse, Langewiesen, Thuringia, Germany. June 6, 1933, No. 16306. [Class 125 (iii).] A closure for a vacuum flask is provided by spinning a sheet-metal sleeve into grooves in the neck of the flask and mounting on the sleeve a pivoted bail carrying a stopper to close the mouth of the flask. As shown, a rubber ring p is inserted between the upper edge of the sleeve and the flask neck, and recesses q in the sleeve form a housing for the ends of toggle pivots r which carry a bail s passing through a stopper t. In a modification the pivots are attached to a metal ring engaging in one of the spun grooves of the sleeve.
Patent GB-886782-A (GB)
Title: Improvements in energy absorbing devices
IPC: F16F9/346
Filed: 1960-05-09
Abstract: 886,782. Hydraulic shock-absorbers. ELECTRIC AUTO-LITE CO. May 9, 1960 [May 18, 1959], No. 16338/60. Class 108(3). In a hydraulic shock-absorber comprising a piston 15, Fig. 1, slidable within a cylinder 10 the fluid passes to opposite sides of the piston 15 through a throttling passage 13 formed in a cylinder liner 12 which may be folded from a flat sheet of cold-rolled steel and press-fitted into a cylinder 10 of extruded aluminium. The edges of the liner 12 are cut away to produce a tapered metering passage 13 which is widest in the region of the piston 15 when retracted and closes completely at a distance from the other end of the cylinder. A seal retainer 29 with a conical flange 37 engaging an "O" ring 38 for the piston rod 16 is retained in position against the threaded cylinder end closure 14 by the end face of the liner 12. A small quantity of air is provided in the cylinder interior 6 to provide a low pressure restoring force when the piston is extended.
Patent GB-1005055-A (GB)
Title: Improvements in or relating to devices for counting and controlling consecutive operations of a machine
Inventor: SACKLEY FREDERICK JOHN
IPC: G06M1/04
Filed: 1963-04-25
Abstract: 1,005,055. Controlling clutches; toothed gearing. VICKERS-ARMSTRONGS (ENGINEERS) Ltd. April 15, 1964 [April 25, 1963], No. 16407/63. Headings F2L and F2Q. A device for counting and controlling consecutive operations of a cyclically operable machine comprises a pivotally mounted toothed sector 4 which is given angular stepwise movements, each corresponding to a cyclic operation of the machine, by the engagement of a driving pin 9 projecting eccentrically from the end of the drive shaft 3 of the machine. The toothed sector 4 is mounted on a plate 6 pivotally mounted on a pivot 7, and the angular movement of the sector-plate 6, according to the required number of operations of the machine in a desired sequence, is determined by an abutment 17 engageable with an adjustable setting block 18 linked to a slide 21 which is adjustable over a calibrated scale 22. A locking pin 11 is adapted to engage successive holes 10 arranged in the sector 4 under the influence of a spring- pressed arm 14 and face cam 12 on the drive shaft 3. When the machine is switched on and a clutch pedal is depressed, a clutch bolt 30 is pulled down by a spring-loaded clutch rod 31 and held down by a locking bolt 29, thereby to engage a one-revolution clutch so that the driving pin 9 drives the toothed sector 4. When the plate 6 reaches the end of the series of stepwise movements, it engages a release pin 33 on a bolt 27 connected to the locking bolt 29 by a flexible cable 28. This frees the clutch bolt 30 which is returned by the spring-loaded clutch rod 31, thereby to disengage the clutch and to prevent further rotation of the driving pin 9. The bolt 27 also actuates a pivoted lever 35 which actuates a catch pin 37 to hold the locking pin in its retracted position in order to allow the sector plate 6 to return to its original position under the influence of its weight. A safety lever element 38 engages a pin 43 carried by the sector plate 6 to hold the toothed sector 4 out of engagement with the driving pin 9 in the event that the operator should inadvertently retain pressure on the operating pedal until after an operating sequence has been completed.
Patent GB-711939-A (GB)
Title: Improvements in or relating to improved olefin polymerization catalyst and process
IPC: C07C2/18
Filed: 1952-07-01
Abstract: Olefines are polymerized to hydrocarbons boiling in the motor fuel range in the presence of a catalyst prepared by drying and calcining an intimate mixture of a silica hydrogel and a phosphorus acid (see Group III).  Copper or nickel salts, especially the phosphates, may also be present in the catalyst. The catalysts are used in finely-divided form and do not agglomerate, being especially suitable for slurry and fluidized processes.  Preferred reaction temperatures are 450-500 DEG  F. and preferred pressures are 1000 lbs. per square inch for the slurry process and 300 lbs. per square inch for the fluidized process. In another process the feed is introduced into a mechanically stirred bed of catalyst at a pressure of 1000 lbs. per square inch, and product is removed from the top of the reaction zone; catalyst fines are separated from the product by filtering, distillation, or by providing baffles in the top of the reaction zone.  In all the types of process, water is introduced continuously or at frequent intervals into the reaction zone. Specification 690,387 is referred to.ALSO:Catalyst for the polymerization of olefines (see Group IV (b)) is prepared by drying and calcining an intimate mixture of a silica hydrogel and a phosphorus acid. Preferably the acid is added to the silica hydrogel formed, e.g. by adding a mineral acid to an alkali metal silicate or by hydrolysis of an alkyl silicate. Alternatively the phosphorus acid may be added to a silica hydrosol formed by passing sodium silicate through an acid-regenerated cation exchange resin, and the mixture allowed to gel; another procedure is to hydrolyse an alkyl silicate with a solution of the acid.  Suitable acids are orthophosphoric, pyrophosphoric, permonophosphoric, and perdiphosphoric acids, and the acid may constitute 50-90 per cent. by weight of the catalyst. Nickel or copper phosphate, nitrate, sulphate, chloride, fluoride, or oxide may be included as a promoter in amounts of 0.1-15 per cent. by weight.  The mixture may be dried in two stages, first at 225-275 DEG F. and then at 375-425 DEG F., and then calcined at 450-900 DEG F. The catalysts are used in finely divided form and do not agglomerate being especially suitable for slurry and fluidised processes. Specification 690,387 is referred to.
Patent GB-1029054-A (GB)
Title: A method of manufacture of a body of ferrite material
Inventor: JACKSON THOMAS MEIRION
IPC: C04B35/26
Filed: 1964-04-24
Abstract: 1,029,054. Magnetic structures. STANDARD TELEPHONES & CABLES Ltd. April 24, 1964 [April 26, 1963], No. 16554/63. Heading H1H. Grooves, holes and the like are formed in ferrite material by spark erosion. The material is placed in a container 1 on an anvil 2 and covered with benzene to a level 5 above the edge of an erosion electrode 4 which is connected to the positive pole of a D.C. supply whose negative pole is connected to the anvil. For effective erosion the resistivity of the ferrite should be below 45 ohm/cm., preferably between 0À02 and 10 ohm/cm. Naturally suitable materials are Co Fe ferrites and some MnZn ferrites. For high resistivity ferrites (e.g. MnZn, MnMg, NiZn ferrites) the material is reduced by heating in reducing atmosphere between 500‹ C. and 1000‹ C. to convert ferric to ferrous iron and lower the resistivity. Erosion is then performed and the material re-oxidized.
Patent GB-1503256-A (GB)
Title: Thiadiazole derivatives
IPC: A01N47/38
Filed: 1976-04-23
Abstract: 1503256 1,2,4 - Thiadiazole derivatives ROUSSEL UCLAF 23 April 1976 [24 April 1975] 16677/76 Heading C2C The invention comprises compounds of general formula wherein R 1  represents an alkoxy radical containing from 1 to 8 carbon atoms; a cycloalkoxy radical containing from 3 to 7 carbon atoms; an alkylthio radical containing from 1 to 8 carbon atoms (optionally substituted by an alkoxycarbonyl group); an alkenylthio radical containing from 2 to 4 carbon atoms; a benzyloxy, benzylthio, phenyl or benzyl radical (each of which may be optionally substituted by one or two substituents selected from chlorine and bromine atoms, alkyl radicals containing from 1 to 3 carbon atoms, and alkoxy radicals containing from 1 to 3 carbon atoms); or a group of formula (in which Z 1  and Z 2 , which may be the same or different, each represents an alkyl radical containing from 1 to 4 carbon atoms); and R 2  represents an alkyl radical containing from 1 to 6 carbon atoms (optionally substituted by a chlorine or bromine atom or by an alkoxy radical containing from 1 to 4 carbon atoms); a phenyl radical (optionally substituted by 1 or 2 substituents selected from chlorine and bromine atoms, alkyl radicals containing from 1 to 3 carbon atoms and alkoxy radicals containing from 1 to 3 carbon atoms); an alkenyl radical containing from 2 to 4 carbon atoms (optionally substituted by one or more chlorine atoms or by an alkoxy radical containing from 1 to 3 carbon atoms); a group of formula [in which X represents an alkyl radical containing from 1 to 4 carbon atoms (optionally substituted by one or more chlorine atoms) or an alkenyl radical containing from 2 to 4 carbon atoms (optionally substituted by one or more chlorine atoms)]; or an alkoxycarbonyl radical containing from 2 to 6 carbon atoms. These compounds are prepared by reacting a compound of Formula II with an isocyanate R 2 -N=C=O, preferably in an organic solvent in the presence of a tertiary organic base. The preparation of compounds of Formula II and precursors thereof is also described. The compounds of the invention are herbicides.
Patent GB-1018576-A (GB)
Title: Process and apparatus for skinning shelled nuts
IPC: A23N5/00
Filed: 1963-04-29
Abstract: 1,018,576. Skinning shelled nuts. J. W. GARDNER. April 29, 1963 [Aug. 6, 1962], No. 16680/63. Heading A2Q. In a process and apparatus for skinning the kernels of shelled nuts, such as peanuts, their skins are slit from end to end, the kernels are then dried in a stream of de-humidified air, at a temperature insufficient to alter their oil structure, e.g. 160‹F., and gradually cooled, e.g. to room temperature, and are then fed, through a hopper 106 and conduits 108, into vibrating dispensing devices 98, Fig. 4, which deliver the kernels, along troughs 102 and trough-shaped ramps 100, into the spaces between parallel abutments 58, Fig. 3, mounted above and diagonally across the upper surface of an endless, travelling conveyer belt 16. Baffles 60, Fig. 5, having downwardly and rearwardly inclined, e.g. abrasive, faces 61 are secured to the abutments, so that the kernels are skinned as they are rolled along these faces and the adjacent upper surface of the conveyer belt 16 to the side of the belt constituting its discharging portion. The upper surface of the conveyer belt 16 may be formed with a plurality of very small truncated pyramids. Each abutment may be turned about its longitudinal axis to vary the inclination of the face 61 of its baffle 60. The abutments may be raised or lowered, individually or together, from or towards the upper surface of the conveyer belt 16. The diagonal direction of the abutments may be varied. The hopper 106 and dispensing devices 98 may be moved along and/or across the conveyer belt.
Patent GB-166037-A (GB)
Title: Improvements in devices for the filtration of sugar cane juices
IPC: C13B20/00
Filed: 1920-06-22
Abstract: 166,037. Miller, J. June 22, 1920. Separating by gravity.-Sugar-cane juices are purified in apparatus comprising a tank having a plurality of weirs or baffles and a submerged straining drum. The Figure shows a tank divided into compartments, by verti. cal plates 3, cut away at the top to form weirs 5. Each compartment is provided with an inclined baffle 4, an inclined bottom 7, sediment outlet 6, and an outlet 8 discharging to a main run-off pipe 9. In the last compartment 11 the liquid passes into a drum 12 of wire gauze or the like, rotated from a driving-shaft 13. The tank is preferably lagged to prevent loss of heat, and may be provided with detachable covers 17 and a vent pipe 18.
Patent GB-766688-A (GB)
Title: Improvements in or relating to the polymerization of steam-cracked petroleum fractions
IPC: C08F240/00
Filed: 1954-06-09
Abstract: A steam-cracked petroleum fraction of boiling range 20 DEG  to 280 DEG  C. containing 10-35 per cent by weight of diolefines, 30-65 per cent olefines and 0.60 per cent of combined aromatics, paraffins and naphthenes, is polymerized in the presence of not more than 4.5 per cent of an anhydrous oxide or hydroxide of an alkali metal, alkaline-earth metal or magnesium and a Friedel-Craft's catalyst at - 30 DEG  to 90 DEG  C. to give light-coloured resins.  The fraction may be one containing C5 to C9 hydrocarbons having a boiling-range between 20 DEG  and 140 DEG  C., or hydrocarbons containing 7 or more carbon atoms boiling up to 280 DEG  C. or a mixture thereof. In examples, fractions having boiling ranges of 30 DEG  to 135 DEG  C. and 35 DEG  to 280 DEG  C. are treated.  They may be thermally pretreated and the cyclopentadiene dimers or codimers formed removed by distillation.  The anhydrous alkaline agent, e.g. sodium, potassium, calcium, lithium, magnesium or strontium hydroxide, preferably in powder form, is added batchwise or continuously to the feed stream or directly to the reactor. Polymerization may be carried out batchwise or continuously using aluminium chloride or bromide or boron trifluoride catalysts as solutions, slurries, or complexes. Residual catalyst is quenched and the product recovered by known methods.