baber/WOPTO huggingface dataset:
Patent GB-137300-A (GB)
Title: Improvements in and relating to fractionating apparatus
IPC: B01D5/00
Filed: 1919-12-29
Abstract: 137,300. Rosanoff Process Co., (Assig. nees of Rosanoff, M. A., and Perkins, H. F.). Dec. 23, 1918, [Convention date]. Plate apparatus.-An apparatus for carrying out a fractionating process of the type in which the substance treated is passed through a series of zones, each of which is kept at a constant temperature, consists of a series of hollow boxes through which fluid is passed for controlling the temperature and which contain a series of hollow conduits for the substance treated. The boxes 1 are arranged as shown and bolted together and are spaced from each other for insulation. The conduits consist of flat tubes 3 arranged as shown and opening at the upper and lower surfaces of the boxes into spaces 16 surrounded by metal pieces 14 abutting against packing rings 18 on the surface of the boxes. The fluid for regulating the temperature is introduced through openings 5 and withdrawn through perforated pipes 6, Fig. 4, extending across the boxes. The liquid enters the tubes 3 through a header 9, attached to the first box and provided. with a draining tube 11 and leaves by a header 12 attached to the last box. In a modification, the boxes are formed of castings the end portions of which are so formed as to replace the curved ends of the tubes 3.
Patent GB-665810-A (GB)
Title: Master cylinders
IPC: B60T11/28
Filed: 1949-12-20
Abstract: 665,810. Hydraulic brakes. HYDRAULIC BRAKE CO. Dec. 20, 1949 [Dec. 28, 1948], No. 32642/49. Addition to 654,528. Class 103 (i). In a master cylinder for fluid-pressure brakes of the type described in the parent Specification, the end 26 of the spindle of the replenishing valve and surface 11 on the flange 10 of the piston are both tapered so that when the valve seat member 17 is set in place with the piston in its normal position, the valve 21 is automatically tilted and not damaged in the operation.
Patent GB-1168054-A (GB)
Title: Nuclear Fuel Elements
Inventor: GAUTHRON MAURICE
IPC: G21C3/04
Filed: 1968-07-09
Abstract: 1,168,054. Fuel elements. COMMISSARIAT A L'ENERGIE ATOMIQUE. 9 July, 1968 [10 July, 1967], No. 32761/68. Heading G6C. A fuel element for use in a reactor in which molten sodium coolant flows upwardly comprises cladding 12 containing fuel, e.g. plutonium and/or uranium oxide (not shown), this fuel element being grouped with other identical elements within a can 16 having wide coolant apertures 18. A fission product vent situated at the upper end of the cladding 12 comprises a ledge 22 penetrated by a tube 20 through which the fission gases pass. On the ledge 22 is easily melted material 24 such as lead or lead alloy whose melting point lies between the temperature of the sodium coolant at reactor shut-down and the temperature of the coolant when the reactor is operating. A tube 30 communicates with the reactor coolant through holes 36 in the cladding. When the fuel element is placed in the shut-down reactor the chambers 32, 28, 42 are filled with an inert gas the same as that provided for the gas cushion situated above the molten coolant. Thus the coolant enters the holes 36 to compress the gas but the arrangement is such that the coolant level 38 does not reach the top of the tube 30. When the pressure of the fission gases reaches a predetermined value during the reactor operation an inverted bell-member 26 is lifted by the gas pressure from the ledge 22 and the gases bubble through the easily melted material 24, depress the level of the coolant within the chamber 32 and escape through the holes 36. The chamber 42 and tube 44 prevent any of the material 24 which may accidentally enter the tube 20 from reaching a space 46 communicating with the fuel. When the reactor shuts down, the material 24 solidifies and forms a seal. Modifications of the ledge 22 and bellmember 26 are described with reference to Figs. 2-4 (not shown).
Patent GB-1424792-A (GB)
Title: Pneumatic percussive tool
IPC: B25C1/04
Filed: 1974-07-25
Abstract: 1424792 Staplers and nailers KARL M REICH MASCHINENFABRIK GmbH 25 July 1974 [2 Aug 1973] 32854/74 Heading B4C In a pneumatic stapler or nailer a driving piston 8 is held in its inoperative position by resilient retaining means 21 comprising an internally notched member which engages a recessed portion 30 at the top of the piston. The piston is held until pressure build up overcomes the resilient retaining force and after insertion of the fastener the piston rises to force into the retaining means until a stop 28 is reached. The notches may be chamfered on their lower portions. An air bleed hole 26 is provided to allow air to be removed as the piston rises. In a modification the lip at the top of the piston may be replaced by an annular recess containing an O ring.
Patent GB-340082-A (GB)
Title: Process for the production of red lead
IPC: C01G21/10
Filed: 1929-10-30
Abstract: Red lead of low density is produced by adding to litharge in an excess of water, small quantities of an organic acid capable of forming basic lead salts soluble in water, and treating with carbon dioxide until a strongly basic lead carbonate of low specific gravity and having an approximate composition 4P6CO3, P6(OH)2 is formed. This product is separated, and oxidized to red lead by burning at the lowest possible temperature, preferably 100 DEG  C. lower than that usually employed in the production of red lead, care being taken to prevent pulverization.  Organic acids specified are acetic acid, formic acid, and amino acids obtained by heating cheap refuse proteins.
Patent GB-884537-A (GB)
Title: Check valve
IPC: F16K15/02
Filed: 1959-09-29
Abstract: 884,537. Valves. CHATLIFF VALVE & MANUFACTURING CO. Sept. 29, 1959 [Jan. 29, 1959], No. 33007/59. Class 135. A check valve has a plunger 7 carrying a gasket 8 for co-operation with a seat 4 surrounding the inlet 3 and a connection by way of grooves 9, 10 between the outlet or outlets 5 and a chamber at the end of the plunger remote from the inlet. The valve opens rapidly due to the momentum acquired by the plug before the lower part 7 below the groove 10 permits communication between the inlet and outlet, and also due to the tendency for fluid flowing through the outlet to reduce the pressure in the groove 10 and to the impact force acting on the plug due to the change of direction of the escaping fluid. The plunger is arrested by fluid trapped when the groove 10 has moved beyond the upper limit of the outlet. When reverse flow commences the static pressure on the lower face of the plunger is reduced causing the pressure behind the plunger to initiate closure whereupon the groove 10 is brought into communication with the outlet so that outlet pressure has access to the space behind the plunger to complete the closure. In modifications the end of the plunger that coacts with the seat may be conical, or closure may be effected by engagement of the cylindrical part of the plunger with an 0-ring in a groove in the housing, and the groove 9 may be helical or interrupted by an additional circumferential groove in which case the two parts of the groove 9 may be of different cross-section to give two different rates of leakage from the space behind the plunger and consequently a variable rate of movement of the plunger. The passage between the outlet and the upper side of the plunger may alternatively be formed by a clearance between the upper part of the plunger, which may have flats, and the bore, or by a porous upper portion of the plunger. Further modifications, in one of which the plunger is spring loaded, are described in which the passage is constituted by a radial bore or bores in the plunger opening to an axial recess open at the upper end.
Patent GB-994979-A (GB)
Title: Dicyclohexylamine salts of complex metal compounds of azo-dyestuffs of the pyrazolone series, their manufacture and use
IPC: C09B69/04
Filed: 1961-09-15
Abstract: The invention comprises a dicyclohexylamine salt of a 1 : 2-complex metal compound of a water-insoluble azo-dyestuff of the general formula <FORM:0994979/C4-C5/1> in which each X represents a hydroxyl group, A represents a radical of the benzene series and B represents the radical derived from a 1-phenyl-3-methyl-pyrazolone in which the phenyl group may be substituted, each of the hydroxyl groups represented by X being attached to a carbon atom which is adjacent to a carbon atom attached to the azo group.  The complexes are produced by reacting dicyclohexylamine with a 1:2-complex metal compound of an azo dye as defined above.  In addition to the SO2-CH=CH2 group the azo may further substituents, e.g. halogen atoms, alkyl, alkoxy or nitro groups.  In an example 2 - amino - 1 - hydroxybenzene - 4 - (b - hydroxyethyl sulphone) is dissolved in sulphuric acid, the solution is poured into ice, neutralized and diazotized and coupled with 1-phenyl-3-methyl-5-pyrazolone. The dye obtained is reacted with chrome alum and the metal complex obtained is reacted with dicyclohexylamine. Additional examples are furnished and starting materials listed.  The dyes are soluble in organic solvents and suitable for colouring lacquers.
Patent GB-488648-A (GB)
Title: Improvements in and relating to hydraulic power transmission devices
IPC: F16H61/56
Filed: 1936-12-03
Abstract: 488,648. Hydraulic power transmitters. LAVAUD, D. S. DE. Dec. 3, 1936, Nos. 33231 and 33232. Convention dates, Dec. 17, 1935 and March 31, 1936. [Class 69 (ii)] In a hydraulic torque converter of the F÷ttinger type and in which the reaction member has a one-way mounting, the turbine blades each comprise two elements, a rigid element and a flexible element, connected together only at the inlet ends. Each turbine blade comprises, Fig. 3, a rigid front element 26b and a resilient rear element 26a. The elements 26a are acted on by fingers 28 formed on a ring angularly movable relatively to the turbine shell under the influence of centrifugal masses 31 pivoted at 30 to the turbine shell and connected at 32 with said ring. The resilience of the elements 26a is such as to urge their free outlet edges into contact with the fixed elements 26b located behind them so as to close the passageway for the liquid between two adjacent blades ; said passageways are not opened until the impeller speed reaches a certain value, the elements being then forced back against their resilience by the liquid flow. As the speed of the turbine increases, the relative liquid flow decreases, and the resilience of the elements 26a, aided by the effect of the masses 31, moves the elements 26a in the direction to decrease the passageways and so increase the speed of flow through the turbine from inlet to outlet thereof. When impeller and turbine rotate at the same speed, the passageways are completely closed. The pump blades may each comprise a pivotally mounted flexible inlet portion 6 and a radially arranged rigid exit portion 11 ; alternatively, as shown in Fig. 6, the pump blades may be flexible throughout, being pivotally mounted on the pump shell at 8 and having a pin-and-slot connection with the shell at 8a, 8b. The blades may alternatively be rigid radial ones. The outlet end of the pump is unbladed and shaped to constitute a " diffuser." An electromagnetic clutch for giving direct drive, as described in Specification 471,729 may be provided. A builtin gear pump circulates liquid through the working circuit and through a cooler ; filters may be provided. In a modification, Fig. 14, the pump blades each comprise a pivoted resilient inlet element 6 and a built-up main blade 80 having a radial rigid inlet portion and a freely flexible outlet portion.
Patent GB-778203-A (GB)
Title: Wax compositions
IPC: C08L91/08
Filed: 1953-11-30
Abstract: A composition comprises a natural or synthetic wax and a polymer of cyclopentadiene or a derivative of such a polymer. Cyclopentadiene polymers mentioned are the dimer, trimer, tetramer, pentamer and higher polymers and mixtures of these. Derivatives of these polymers are the saturated materials obtained by hydrogenating such polymers, aldehydes obtained from the unsaturated polymers by reaction with carbon monoxide and hydrogen according to the oxo synthesis, alcohols obtained by hydrogenation of such aldehydes, carboxylic acids and carboxylic acid esters derived from such aldehydes and alcohols, and oxygen- or nitrogen-containing materials obtained by reacting the unsaturated polymers with water, formic acid or hydrocyanic acid. Natural and synthetic waxes mentioned are paraffin wax, Fischer-Tropsh wax, beeswax, carnauba wax, and waxy aliphatic alcohols and aliphatic carboxylic acids containing at least 20 carbon atoms in the molecule, as well as mixtures of such waxes. Details are given of the polymerization of dicyclopentadiene, the isolation of the various polymerization products, the hydrogenation of such products and their use in the oxo synthesis.ALSO:A wax composition comprises a natural or synthetic wax and a compound having in its molecule condensed five-membered carbon rings, this compound being a polymer of cyclopentadiene or a derivative of such a polymer. Cyclopentadiene polymers mentioned are the dimer, trimer, tetramer, pentamer and higher polymers and mixtures of these.  Derivatives of these polymers which are mentioned are the saturated materials obtained by hydrogenating such polymers, aldehydes obtained from the unsaturated polymers by reaction with carbon monoxide and hydrogen according to the oxo synthesis alhohols obtained by hydrogenation of such aldehydes, carboxylic acids and carboxylic acid esters derived from such aldehydes and alcohols, and oxygen- or nitrogen-containing materials obtained by reacting the unsaturated polymers with water, formic acid or hydrocyanic acid. Natural and synthetic waxes which are mentioned are paraffin wax, Fischer-Tropsch wax, beeswax (carnauba wax, and waxy aliphatic alcohols and aliphatic carboxylic acids containing at least 20 carbon atoms in the molecule, as well as mixtures of such waxes.
Patent GB-1150059-A (GB)
Title: Method and apparatus for forming toothed parts
Inventor: HANNA EDWARD
IPC: B21H5/02
Filed: 1966-07-26
Abstract: 1,150,059. Swaging. E. HANNA. 26 July, 1966, No. 33586/66. Heading B3H. In a method of forming a toothed contour on a workpiece, such as a gear-wheel, an unformed blank is passed axially through the central opening 51 of an integral continuous annulus 19, the opening having a tooth-shaped cross-section, each peripheral segment being complementary to a corresponding segment of the contoured workpiece, the height of the teeth 52 increasing axially along the opening to establish a tapered entrance throat, and an inwardly directed force P is alternately applied and released on opposing segments to flex the annulus elastically and displace opposing segments into and out of deforming contact with the blank, so that repeated impact of all sectors of surfaces defining said opening deforms the exterior of the blank as it is fed through the opening, to the shape of the opening. An apparatus for performing the method comprises feed carriage 11 which is driven by a screw 13 along a base 12. A spring-loaded push rod sleeve 16 is mounted in the carriage and engages the end of a blank 18. The forming die 19 has dog-clutch teeth at both ends and is non-rotatably held between a guide bushing 22 and a torque tube 25. A roller head 39 is mounted on a shaft 40 which rotates in bearings 41 about the fixed tube 25. Rollers 47 are mounted in the head 39 on eccentric pivot pins 46, by which the rollers are positioned so that as the head rotates they engage the crests of lobes 48 formed on the outside of the die. Each of the lobes 48 is opposite one of the teeth 52. The amount of deformation produced when the rollers engage the lobes is about À002 inches, and the minimum dimensions of the tapered die throat are larger than the finished dimensions of the workpiece by a similar amount. The work is fed into the die by the push-rod sleeve 16, but when the end of the sleeve engages the guide bushing 22, the feed is continued by a push-rod 33 which passes through the sleeve 16. In a machine for forming helical teeth the push-rod has a squared end which fits a recess in the blank, Fig. 10 (not shown). The rod is connected through changegearing to the lead screw 13 so that the feed and rotation of the blank are correlated.
Patent GB-385094-A (GB)
Title: Improvements in and relating to pneumatic rammers and other similar tools
IPC: E02D3/061
Filed: 1931-12-04
Abstract: 385,094. Pneumatic rammers. BROOM, H. S., Springfields, Great Kingshill, near High Wycombe, and BROOM & WADE, Ltd., High Wycombe, Buckinghamshire. Dec. 4, 1931, No. 33664. [Class 124.] A pneumatic earth rammer has a control valve 16 which when opened by the trigger 3 admits air to the upper side of the piston 8. The cylinder is thus raised, and when the valve 20 passes the piston, pressure air enters the conduit 21 and thus acts on the lower side of the piston. This air also raises the differential valve 25 admitting line air directlv to the lower side of the piston. The valve 16 being now closed the tap 5 is raised from the ground, the piston-rod being drawn into the cylinder and the space 22 is then exhausted by passage of air through the ports 30, 31 to the atmosphere. The rammer then falls by gravity. The exhaust for the upper end of the cylinder is by way of conduits 14, 15, 17, controlled by the valve 16. In a modification the valve 16 is returned by a spring.
Patent GB-322081-A (GB)
Title: Improvements in or relating to circuits embodying iron cored transformers
IPC: H03F3/02
Filed: 1928-11-16
Abstract: 322,081. Gramophone Co., Ltd., and Browne, C. O. Nov. 16, 1928. Transformers.-In an arrangement such as may be used for obtaining photographic records of acoustic currents and comprising a transformer, the primary n1 of which is included in the output circuit of a valve v upon the grid of which the currents to be recorded are impressed, the secondary n2 being included in the circuit of a light source such as an arc lamp c maintained by a battery d, the magnitudes of the direct currents flowing in the primary to secondary circuits are so determined that the resultant steady flux in the core is substantially zero.
Patent GB-424299-A (GB)
Title: Improvements in liquid fuel supply systems for internal combustion engines
IPC: F02M37/02
Filed: 1933-12-01
Abstract: 424,299. Vacuum apparatus. AUTOVAC MANUFACTURING CO., Ltd., and HIGGINSON, J., Heaton Norris, Stockport. Dec. 1, 1933, No. 33764. [Class 102 (ii)] In apparatus for raising liquid fuel, of the type in which an air suction valve e and a relief valve f are operated through toggle mechanism m by the rod d of a float, a partition a is arranged betweer the float and the valve mechanism, in order to minimize passage of fuel intc the suction system. The partition may rest on a ledge in the float chamber, or may be secured by studs h, i, to the fuel inlet g and to a post j. The plate a is formed with a slot o to permit insertion over the rod d. The slot is covered by a plate n secured by the studs h.
Patent GB-788909-A (GB)
Title: Automatic valve for the periodic dispensing of pulverulent materials
IPC: G01G13/00
Filed: 1955-11-24
Abstract: 788,909. Weighing apparatus. SOC. BLEGE PRAT-DANIEL SOC. ANON. Nov. 24, 1955 [Nov. 25, 1954], No. 33767/55. Class 143 An automatic device for dispensing pulverulent material from a container 1 comprises a sleeve 3 and valve plate 4 secured to a rod 5 suspended from a weigh beam 7, and a stationary sleeve 2 which surrounds the space between the sleeve 3 and valve plate 4 and has an end portion 13 against which the valve plate seats. In operation, on the accumulation of a predetermined weight of material on valve plate 4, the valve is opened and the material is discharged into conduit 12. A stop 10 on rod 5 and a fixed abutment 11 limit movement of plate 4. The plug of outflowing material at the lower end of sleeve 2 prevents the passage through the valve of gas used to pressurize the material in container 1.
Patent GB-389052-A (GB)
Title: Improvements in and relating to wax-spreading and polishing machines
IPC: A47L13/30
Filed: 1932-11-29
Abstract: 389,052. Floor - polishing appliances. MONTIGNY, A., 56, Rue des Patriotes, Brussels. Nov. 29, 1932, No. 33792. [Class 19.] A floor-polishing appliance comprises a brush 3, a reservoir 8 containing liquid or emulsified wax and provided with outlet tubes 10, and a handle adapted to function as a pump and supply air through nozzles 12 across the mouths of the tubes 10 so that the wax in mist-like form is ejected and falls through an aperture 7 provided within the brush. The handle comprises a sleeve member 21 carrying a rod 22 supporting a piston ?3 which fits within a cylinder 20. The cylinder has an extension 24 containing a tube 25 which is adapted, through the medium of a block 18, a valve 27, and flexible tubes 28, to be put in communication with the nozzles 12. On reciprocation of the sleeve 21, the wax is sprayed on the floor within the surface covered by the brush.
Patent GB-282406-A (GB)
Title: Improvements in machines of the semi-automatic type for casting under pressure
IPC: B22D18/04
Filed: 1927-12-14
Abstract: 282,406. Brumm, E. Dec. 15, 1926, [Convention date]. Casting-machines; moulds.-Casting-machines for metals, alloys, &c. are provided with means for automatically connecting the moulds to a pressure supply, and, if desired, to a vacuum, at predetermined times after the closing of the gates of said moulds. The mould comprises a fixed part 2<a> and a part 5 moved by a fluid pressure cylinder 7 controlled by hand operated valves 8. A funnel 22 is moved by screws and hand wheels 13, 15 to engage an undercut recess in the mould by its flanged end 16a and molten metal is then poured through the funnel into the closed mould. The operator then closes the gate by a slide 17 which is moved by a fluid pressure cylinder 18<a> and valves 31 operated by a hand lever 21. This lever is connected, through an adjustable link 21a, Fig. 2, to a catch 48<a> which is thus withdrawn from an adjustable stop 49 carried by a cam 46 when the gate is closed. The cam is then rotated by a weight 24<a> and actuates valves in a box c to connect channels in the mould with a vacuum pipe 29<b> and the space below the slide 17 to an air pressure supply pipe 30b, Fig. 1. When the mould is opened, by operating the valve 8, levers 74, Fig. 2, engage fixed abutments and thus operate pinions and racks to withdraw cores and actuate ejectors. The mould part 5 is also connected to a rod 51a which acts through hooks B, E and a rod 51<c> to close a clutch 51 and cause a motor driven shaft 26 to wind up the weight 24<a>, the clutch being thrown out by an abutment 23a pressing back the hook E. In a modification a number of machines are mounted' on a rotating table 32, Fig. 4, a multi-way valve 45b for controlling the opening and closing of the moulds being operated automatically by the rotation of the table. This valve also supplies the pressure and, if desired, vacuum to be applied to the moulds by pipes 30<d>. The operator arrests the table, by use of a clutch, when the first machine coincides with the metal supply the mould being closed. He then pours the metal into the funnel 22 and operates the lever 21 which closes the slide 17 and releases the timing wheel 23 which in this case is grooved to carry the cord and weight 24a and controls only compressed gas supplied by pipes 30. The timing wheel is returned by a motor d and worm gear which is automatically disengaged when the weight has been raised. The opened mould may be inspected and refaced by spraying &c. at another position. In another modification the mould comprises three or more parts two of which are moved by pistons.