baber/WOPTO huggingface dataset:
Patent GB-540228-A (GB)
Title: Addition agents for manganese electrolytes
IPC: C25C1/10
Filed: 1940-04-08
Abstract: 540,228. Electrodeposition of manganese CONSOLIDATED MINING & SMELTING CO. OF CANADA, Ltd. April 8, 1940, No. 6307. Convention date, July 27, 1939. [Class 41 ] In the electrodeposition of metallic manganese the electrolyte contains an agent which prevents or retards the production of oxidizing condition consisting of a sulphur compound selected from hydrogen sulphide, xanthates, thiosulphates, sulphamic acid, carbon bisulphide, di- or tetrathionates of sodium, potassium or manganese or the product obtained by treating caustic soda with hydrogen sulphide. Specifications 501,406, 535,246 and 543,887 are referred to.
Patent GB-540328-A (GB)
Title: Improvements in multi-cylinder internal combustion engines having opposed pistons ineach cylinder
IPC: F02B75/22
Filed: 1940-04-08
Abstract: 540,328. Engines with opposed pistons in each cylinder. SELIGMAN, R. A. L. April 8, 1940, No. 6315. Convention date, June 2, 1939. [Class 7 (ii)] Opposed pistons work in triangularly arranged cylinders with a crank shaft at each angle. Each crank-pin is connected to two pistons in adjacent cylinders. The spur gearing between the three crank-shafts and the central shaft 5 permits the shaft 3a to rotate oppositely to the other two. Minimum clearance in the cylinder 1a is reached when the piston connected to shaft 3a is 10 degrees behind dead-centre and the associated piston 2a 10 degrees in advance. The piston 2b attached to crank-shaft 3b lags 20 degrees behind that attached to shaft 3a. As the firing period for the three cylinders is thus restricted to 80 degrees, balance is maintained by distribution in parallel banks of three cylinders, the firing order for an 18-cylinder engine being given.
Patent GB-805870-A (GB)
Title: Derivatives of 5-dialkylamino-alkylamino-8-methylthiochromone
IPC: C07D335/04
Filed: 1957-02-25
Abstract: The invention comprises compounds of the general formula: <FORM:0805870/IV (b)/1> wherein R represents a trimethylene, methyltrimethylene, tetramethylene, methyltetramethylene, methylbutylene or thiatrimethylene radical, X is a divalent aliphatic radical containing 1 to 4 carbon atoms and Y is a dialkylamino group, the alkyl groups of which each contain 1 to 4 carbon atoms and their preparation of reacting a 5-halo- or 5-amino-8-methylthiochromone with the appropriate dialkylaminoalkylamine or dialkylaminoalkyl halide respectively. The requisite 8-methylthiochromones are themselves prepared by reaction of a 2-methylthiophenol with an alkyl ester of the appropriate cyclic ketone-a -carboxylic acid.  In examples: (1) 2-methyl-5-acetaminothiophenol in ethyl cyclopentanone-2-carboxylate is heated in orthophosphoric acid containing P2O5, the product deacetylated and the resulting 2,3-trimethylene-5-amino-8-methylthiochromone heated with diethylaminoethyl chloride giving 2,3 - trimethylene - 5 - diethylaminoethylamino - 8 - methyl - thiochromone; similarly (2), (4) and (5) using the following keto-esters: ethyl 4-methyl-cyclopentanone2-carboxylate, ethyl cyclohexanone-2-carboxylate, ethyl 4 - methylcyclohexanone - 2 - carboxylate, ethyl 4 - methyl - D 3,4 - cyclohexenone-2-carboxylate and ethyl thiopyranone-4-carboxylate-(3) are prepared the corresponding 5 - diethylaminoethylamino - 8 - methyl - 2,3-b  - methyltrimethylene - thiochromone, 1,2,3,4-tetrahydro - 5 - methyl - and 2,5 - dimethyl - 8-diethylaminoethylamino - thioxanthone, 1,2-dihydro - 3,5 - dimethyl - 8 - diethylaminoethylamino - thioxanthone, and 1,2,3,4 - tetrahydro - 2 - thia - 5 - methyl - 8 - diethylaminoethylamino-thioxanthone via the intermediate 5 - aminothiochromone or 8 - aminothioxanthones; (3) 2-methyl-5-chlorothiophenol and ethyl cyclohexanone-2-carboxylate are reacted in polyphosphoric acid and the resulting 1,2,3,4 - tetrahydro - 5 - methyl - 8 - chlorothioxanthone condensed with diethylaminoethylamine in pyridine with copper powder to yield 1,2,3,4 - tetrahydro - 5 - methyl - 8 - diethylaminoethylamino-thioxanthone.
Patent GB-548491-A (GB)
Title: Improvements in apparatus for the hypodermic administration of gas
IPC: A61M5/00
Filed: 1941-05-19
Abstract: 548,491. Hypodermic gas-injection apparatus. McPHERSON, I. May 19, 1941. No. 6443. [Class 81 (ii)] Apparatus for the hypodermic injection of gas, e.g. oxygen, comprises a working chamber 1 a needle mount 14 communicating with the chamber adapted to contain a therapeutic dose of gas at a pressure of a few atmospheres through a regulating valve 18 capable of fine adjustment, a pressure gauge 11 responding to fluid pressure in the chamber enabling the amount of dose to be ascertained, a high-pressure reservoir chamber 2, a supply valve 4 controlling the charging of the working chamber from the reservoir chamber and means for admitting gas to the reservoir chamber. As shown the needle mount, working chamber, a connecting element 3, and the reservoir chamber are rigidly connected one to another in line with the valve 4 and gauge 11 arranged in the element 3 and the gas is admitted to the chamber 2 through a charging union 21 and a controllable stop valve 20 is disposed between the union and the chamber ; the valve 4 may be a needle valve admitting gas at say 120 atmospheres to the chamber 1 and the gauge 11 may be calibrated to indicate the equivalent volume in c.c. at atmospheric pressure of the dose of gas capable of being discharged from the chamber 1 which may be provided with a safety valve 33. The duct 13 through the needle mount communicating with the needle ! 17 also communicates with a duct 24 leading to a syringe 27 having a transparent part so that by manipulating the portion 30 of the syringe fluid may be drawn into the syringe to indicate whether or not the needle has been inserted in a vein. The valve 18 is a needle valve having a calibrated operating disc co-operating with a fixed pointer 19.
Patent GB-1275311-A (GB)
Title: Pyrimidine fungicide
Inventor: SHEPHARD MARGARET CLAIRE
IPC: C07D239/46
Filed: 1969-02-06
Abstract: 1275311 An aminopyrimidine IMPERIAL CHEMICAL INDUSTRIES Ltd 9 Jan 1970 [6 Feb 1969] 6469/69 Heading C2C The novel compound 2-methylamino-4-hydroxy-5-n-butyl-6-methylpyrimidine and the ethers, esters, acid addition, metal and ammonium salts thereof, is prepared by reacting the corresponding 2-methylthio-derivative with methylamine or by condensing ethyl 2-n-butylacetoacetate with methylguanidine carbonate and, if required, converting the product to the ester, ether or salts by conventional methods. The ethers may also be obtained by reacting the 4-chloro derivative with an hydroxy compound, e.g. 2-diethylaminoethanol, in the presence of sodium. Esters may be prepared using the acid halides of, e.g. p-toluene sulphonic, methanesulphonic, ethylcarbonic, benzoic, pnitrobenzoic or cinnamic acids. Specified metal salts are Na, K, Ag and Hg. Acid addition salts may be formed from organic and inorganic acids. The pyrimidine and its derivatives possess fungicidal properties and are used in conventional forms to combat fungal plant diseases. Reference has been directed by the Comptroller to Specification 1,223,686.
Patent GB-286094-A (GB)
Title: Improvements in woodworking machines
IPC: B27B5/20
Filed: 1927-03-08
Abstract: 286,094. Hutchinson, M. March 8, 1927. Circular-saw machines.- A rotary cross-cut saw or other wood-working tool 41 together with its driving motor 31 is supported by a carriage 24 sliding in a grooved arm 22 attached to a hub 21 rotatable about a vertical post 10 and provided with a slot 47<a> for clamping the hub to a collar 16 fixed to the post and guided by depending rods 18. The post is carried in a hollow upright column 6 divided to admit a wormwheel 8 for adjusting the post vertically in the column, the upper and lower parts of the column being connected by the supporting leg 5 of the machine. The tension of the driving belt is adjusted by means of a screw 35, and the bearing sleeve 39 for the saw spindle has a separate angular adjustment in a vertical plane by loosening bolts 45. A rip-saw 52 is carried below the table in a pivoted frame 56 moved by means of a hand wheel 65. A grooving or tenoning device 68 of suitable construction may be added, driven by a pulley 70.
Patent GB-764310-A (GB)
Title: A transportable bin or container
Inventor: GLENDINNING STANLEY ARCHIBALD
IPC: B28C7/00
Filed: 1954-03-05
Abstract: 764,310. Skips for carriage on vehicles. AMALGAMATED LIMESTONE CORPORATION, Ltd. April 6, 1955 [March 5, 1954], No. 6512/54. Class 78 (4). A bin for carrying cement or other material carries a projection 18 for engaging the platform 23 of a carrier vehicle so that it can be rocked between the positions shown in Figs. 4 and 5 when loading and unloading the bin on to and from the vehicle. In the form illustrated the projection comprises a cam-like structure 18 having curved rails 20 at either side and so shaped that the bin always tends to move from the position of Fig. 5 to that of Fig. 4 by its own weight. The bin is tipped on to the vehicle by tackle 25 connected to a manually operated winch 9. The base of the bin includes a curved portion 16<1> facilitating its tipping movement. The bin is loaded pneumatically through a pipe 42 suitably clipped to the bin. The air vents through the filter of Specification 764,311, [Group XXVIII]. The outlet 15 of the bin is supported by a structure 12 of square section comprising four angle irons at the corners, which may be covered, except for an access aperture, by metal panels. Batching equipment may be fitted within the supporting structure 12. The walls 10 of the body may be corrugated. In alternative constructions the structure 18 is replaced by a transverse bar or by a pair of rollers carried by a transverse axle. Alternatively the container may be of rectangular cross-section comprising an open framework closed on all sides by panels, one of which is formed with the projection around which the bin rocks.
Patent GB-955411-A (GB)
Title: Improvements in and relating to valves for the control of fluids
Inventor: JARRETT CHARLES ROY
IPC: F16K7/16
Filed: 1959-02-25
Abstract: 955,411. Valves. SAUNDERS VALVE CO. Ltd. May 12, 1960 [Feb. 25, 1959], No. 6539/59. Heading F2V. A fluid control valve has a flexible diaphragm 16 integral with a portion 22 co-operating with an annular seating 14, a supporting surface 17 extending inwardly from the clamped margin of the diaphragm, and an operating mechanism including a supporting member 24 extending substantially to the edge of the surface 17 so that the greater part of the area of the diaphragm is supported, the diaphragm being moulded to its shape in the closed position. The member 24 carries a screw 33 which is moulded into the diaphragm and may have holes through its head to improve the anchoring. A lug 29 engaging a groove in the bonnet 18 prevents the member and a screwed spindle 23 to which it is attached from rotating when a nut 27 is rotated by a hand wheel 28. A stem 37 on the spindle indicates the extent to which the valve is open and a pin 41 passing through one of a series of apertures 42 in the hand wheel may be secured by a padlock. The diaphragm may be of nitrile or butyl rubber or of a composition such as polytetrafluorethylene or polymonochlorotrifluorethylene based on halogenated hydrocarbon. It may have a British Standard hardness of 90‹ to 95‹ and be formed with an edge or a narrow bevel to engage the seating. The valve body, which is machined from solid material may be lined with the material used for the diaphragm. A construction for valves of larger bore is described in which the body is constructed from castings, the spindle extends through the member 24 and the screw moulded into the diaphragm has a larger head. Specifications 321,892,362,084, 434,664,434,684, 439,701, 516,526, 585,607, 622,204, 657,324, 685,935, 693,845 and 744,071 are referred to.
Patent GB-144796-A (GB)
Title: Improvements relating to braking apparatus
IPC: B61K7/08
Filed: 1919-03-17
Abstract: 144,796. McKenzie, Holland, & Westinghouse Power Signal Co., and Castleman, F. M. March 17, 1919. Fluid - pressure; arresting-grips on permanent way.-The motion of running tubs and like vehicles is arrested by friction bars on the track, which are applied to the wheels of the vehicle by pressure fluid supplied through valves which are located on the track and adapted for operation by the vehicle. The friction bars 1 are secured to pistons 6 working in cylinders 7 to which compressed air is admitted by the valve 10 and pipe 8. The valve 10 is actuated by a treadle bar 31 pivoted at 32 and adapted to be depressed by the vehicle wheels 4, whereby the valve member 29 is moved by a rod 33, which carries a counterweight 34 for returning the bar. The valve, which is adapted to return to the release position after a predetermined interval, comprises a double-beat valve 11 which normally connects the chambers 13, 28 on each side of a piston 21 to an exhaust port 16, so that the piston, held by a spring 27, connects the pipe 8 leading from the cylinder 7 to an exhaust port 23 by way of the cavity 22. The chamber 28 is vented through a passage 26 containing a non- return valve. When the plunger 29 is forced inwards by the treadle bar 31, compressed air admitted by the pipe 19 past the valve 11 to the chamber 13 forces back the piston 21 so as to uncover the port 24, thereby admitting the compressed air to the cylinder 7. Air also flows through the restricted passage 25 to the chamber 28 so that after a time the spring 27 is able to return the piston, and the friction bars 1 are withdrawn from the wheels. In a modification, the valve plunger 29 is disposed beneath the bar 31 and the friction-bars 1 are secured to the cylinders of the compressed-air device, the pistons being fixed. In a further modification, the bar 31 actuates electric contacts in the circuit of an electro-magnetic valve which supplies the pressure-fluid. In this case the length of the bar 31 determines the time during which the brake is applied. A hand switch may be provided.
Patent GB-128336-A (GB)
Title: Improvements in Carburetters.
Inventor: PICKERING JOSEPH THOMAS
IPC: F02M7/14
Filed: 1918-04-19
Abstract: 128,336. Pickering, J. T. April 19, 1918. Spray carburettors.-In a spray carburettor, two oppositely-faced valves are provided in the fuel passage leading to the nozzle outlet and are carried by the same suction-actuated spindle, one valve serving to control the flow of fuel, and the other to cut it off when the suction ceases. The. carburettor casing A is jacketed at a<6> and has an air inlet controlled bv a throttle valve B, the mixture leaving at a<2>. Between the air inlet and mixture outlet is a conical gauze diaphragm K supported by a cage k<1> through the apex of which passes the valve spindle C. This spindle is attached to a piston J<1> sliding in a cylinder H<1> and open to the atmosphere at the top, and carries the two valves D, E of which D is the cut-off and E the control valve, the seating d of the cut-off valve being adjustable. The piston and valves, which are loaded bv a spring S so as to keep the cut-off valve, closed, are lowered by suction, the extent of the downward movement being limited by nuts g<3> and a rotatable sleeve g<4>, cam-surfaces on the underside of which engage similar surfaces on a boss a<4> carried by the cover a<5>. This construction is particularly adapted for engines with medium compression. In a modified construction for use with higher compression pressures, the piston J<1> is smaller in diameter, and its cylinder is open to the atmosphere at the bottom and to the suction pressure through ports in its wall at the top. The piston is therefore raised by suction, and the arrangement of the valves D, E is consequently the reverse of that shown in Fig. 3. In a still further modification for use with low compression pressures, the piston J<1> is replaced by a flexible diaphragm extending over the whole of the area closed by the cover a<5>.
Patent GB-475765-A (GB)
Title: Improvements relating to calculating apparatus
IPC: F24C15/20
Filed: 1937-03-08
Abstract: 475,765. Calculating-apparatus. CORDT-UNIVERSAL-RECHEN-MASCHINEN-GES. March 8, 1937, No. 6746. Convention date, March 31, 1936. [Class 106 (i)] Adding - apparating.-In an adding- machine of the kind having a number of totalizers arranged around the periphery of a drum, totalizer-selection is effected by a detent co-operating with a series of angularly spaced stops, the detent being moved to and from locking position by means actuated, partly by the paper carriage and partly by the drum. The totalizers 2 are carried by a drum 1 that is rotatable by a constantly running motor through a clutch 27 and is positioned by a detent 13 engageable with stops 12 on a disc 11 rigid with the drum. The detent extends from a shaft 23 that also carries a clutch-controlling arm 25 and a T-shaped operating arm 22: As the paper carriage is moved from initial position, a stepped plate 4, rigid therewith, cams a lever 8 counterclockwise and shifts a traversable member 15 to the right by an extent proportional to the movement of the carriage. A plate 18 slidable on the traversable member is thus freed from the step 201 of a stepped slide 20 and moves outwardly under the action of its spring 19. The operating arm 22 is urged to follow the movement of the plate 18 and through the shaft 23 disables the detent and engages the clutch, whereupon the drum rotates. Rotation of the drum, through pinion 29, rack bar 31 and pinion 33, shifts the stepped slide 20 inwardly until the plate 18 is engaged by that step of the slide which corresponds to the operative step of the stepped plate 4. The plate 18 is thereupon returned to normal position, declutching the motor and restoring the detent 13 to locking position. At the end of the travel of the paper carriage, the plate 18 escapes the last step 2015 of the slide 20 and the traversable member is held in its extreme right-hand position by the engagement of its stud 15<1> with a latch 36. The drum is now rotated forwardly into its initial position where it is arrested by a detent 41. This detent is normally held in ineffective position by an arm 40<1> of a plunger 40, but is released at this time by a cam surface 38 that projects from the disc 11 and depresses the plunger. Through a lever 44, the depression of the plunger serves also to shift the pinion 29 axially out of mesh with the rack bar and thus allows the stepped slide 20 to return to normal position under the action of a spring 33<1>. As the stepped slide reaches homo position, a pin 37 therein disables the latch 36 and frees the traversable member 15 which returns to its left-hand position as the paper carriage is restored. On arriving at its lefthand position, the member 15 abuts a rod 43 and disables the detent 41, the main detent 13 having previously been rendered effective by a shoulder 47 of a lever 46 rocked clockwise by the disengagement of pinion 29.
Patent GB-695105-A (GB)
Title: Process for the manufacture of vinyl chloride
IPC: C07C17/08
Filed: 1950-03-01
Abstract: Vinyl chloride is made by reacting hydrogen chloride and acetylene at elevated temperature in the presence of a mercury chloride or cadmium chloride catalyst, the reactants being passed through a reaction chamber containing a close succession of catalyst and cooling zones, the catalyst being arranged in a large number of parallel, narrow, vertical reaction spaces crossed by a large number of horizontal conduits for the circulating cooling medium.  Active carbon is a specified catalyst support. Temperatures instanced are about 80-90 DEG  C. when only small quantities of by-products are obtained and catalyst efficiency is high and conventional temperatures of about 150-200 DEG  C. are also specified.  Water is best suited for cooling.  The reactants, suitably in equimolar proportion, may be introduced to the apparatus at room temperature.  A "Fischer Ofen" may be used, c.f. Specification 451,177, [Group III], and German Specifications 676,919, 708,889 and 720,685.  In an illustration of the reaction chamber the distance between consecutive parallel catalyst-containing sheets is about 15 to 100 mms., preferably about 20 to 30 mms., and the distance between the individual cooling conduits is approximately the same.  An example is provided. Specification 378,873 also is referred to.
Patent GB-525844-A (GB)
Title: Improvements in or relating to seals for rotary or oscillatory valves for internal combustion engines
IPC: F01L7/16
Filed: 1939-03-02
Abstract: 525,844. Valves. HAY, W. G. March 2, 1939, No. 6776. [Class 7 (vi)] A sealing-block 12 surrounding a passage 2 controlled by a rotary valve 6 is fitted internally with packing-rings 14 retained by L-section rings 15, the last of which is screwed into position. The block is formed with a shoulder extending more or less inwardly beyond the rings 14, and against which the combustion pressure may act so as to press the block against the valve. Springs 24 may be provided to give a further pressure on the block. A vent passage 17 may be arranged to release any gases that may reach the bottom of the recess, and in such cases the rings 14 may be omitted. Rings 16 provided around the outer periphery of the block serve to transfer heat therefrom to the casing.
Patent GB-411612-A (GB)
Title: Improvements in or relating to electric heating elements
IPC: H05B3/16
Filed: 1933-03-06
Abstract: 411,612. Wire resistances. GENERAL ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and HUNT, J. R., c/o General Electric Co., Wembley, Middlesex. March 6, 1933, No. 6798. [Class 37.] In the manufacture of a heating element wherein a conductor 3 is wound helically on a refractory support 1, the support is provided with one or more longitudinal grooves 2 which are filled with plastic material 4 projecting above the surface of the support, the conductor being then wound thereon to embed itself partially in the plastic material, after which the element is baked to convert the plastic material into a rigid refractory. The support may be formed or the grooves filled, by extrusion from suitably shaped nozzles. One end of the wire is held during winding by placing it in a transverse slot 5 and winding the wire over the projecting end. Aluminium terminal caps 6 are cast over the ends of the element and tipped with nickel or silver.
Patent GB-1158093-A (GB)
Title: Shock Absorber
IPC: F16F9/18
Filed: 1968-02-13
Abstract: 1,158,093. Shock absorbers. YORK GEARS Ltd. 13 Feb., 1968 [13 Feb., 1967], No. 6947/68. Heading F2S. A shock absorber has two reciprocating pistons and in one embodiment, Fig. 3, the open length is adjustable. Pistons 18, 20 slide in a liquid filled chamber 11 which when completely closed, Fig. 1 (not shown), acts as a fluid spring or when open e.g. via port 40, Fig. 2, acts as a fluid dashpot, ports being provided through at least one piston head. Members 26 and 22, attached to their respective piston-rods are slidable over the chamber enclosure 10 and 26 slides over 22. The annular chamber 34 may communicate with chamber 11 via port 42 and is so dimensioned that as member 22 and piston 20 slide in, the fluid displaced by the piston-rod is just accommodated bythe increased volume of chamber 34. To provide spring for the return stroke chamber 32 may be filled with compressed air. The chamber 31 may also contain compressed air but space 33 is vented to the atmosphere. In the embodiment shown schematically in Fig. 3 the ports 40 and 37 are omitted and the position of piston 18 and its member 26 is predetermined by operation of a fluid power source 51 which, by means of ports 48, 49 can adjust the relative quantities of liquid above and below the piston. In this embodiment chamber 11 is divided by a wall 44 and chamber 31 is vented to the atmosphere. The spring and damping elements at each end of the various shock absorbers may be combined in any combination.