baber/WOPTO huggingface dataset:
Patent GB-240037-A (GB)
Title: Improvement in piston pumps for rarefying air and other gases
IPC: F04B39/08
Filed: 1924-12-18
Abstract: 240,037. Friberg, H. Oct. 17, 1924, [Convention date]. Valves, arrangement and actuation of.-The spring- loaded inlet and outlet valves of vacuum pumps are combined with cam or other regulating members coupled to the piston or piston driving means and causing the spring load to act on the outlet valve and positively opening the inlet valve at the beginning of the suction stroke, while at the beginning of the pressure stroke the outlet valve is relieved of spring pressure; the outlet valve forms a lid for the pump cylinder external to it, and the suction valve is provided in the face of the lid. The vacuum pump shown in Fig. 1 is formed with a hollow lid acting as the outlet valve of the cylinder and having the suction valve 7 provided in its lower face, the interior of the lid being connected to the space to be evacuated. The lid is formed with a projection 5 guided in a yoke 6 so as to allow it to rise. The stem of the suction valve extends through the projection, and the valve is pressed upwards by a helical spring 10. A cam 13 on a shaft 12 driven from the pump shaft acts alternately to depress the suction valve stem and to lift an arm 15 pivotally supported from the cylinder and actuated by a spring 19 to hold the lid to the cylinder at the required times. Fig. 3 shows a modification in which the outlet valve 4 may be held down by a bell crank lever 36, the other arm of which is drawn down by a spring and is raised at intervals by a sleeve 43 acted on by a cam 42. Cams 39 on the same shaft act on a rod 40 sliding in the sleeve 43 and through a lever 41 supported from the arm 36 depress the suction valve stem as required. In a modification, the lever 41 may be supported from the cylinder and acted on by a cam on a separate shaft. In a further modification, the lever 41 is carried from a single-armed lever the end of which bears on the projection 5 with a spring pressure, while the projection slides in a fixed yoke.
Patent GB-1196613-A (GB)
Title: Improvement in Drained and Vented Wall Structures
IPC: E04B1/70
Filed: 1967-07-04
Abstract: 1,196,613. Draining walls. A-SYSTEM BYGGELEMENT A.B. 4 July, 1967 [4 July, 1966], No. 30741/67. Heading E1B. A waterproof shield 4 is introduced into a space 5 between blocks 2 and facing panels 1, above spaced indentations in the top edge of the lower panel, the indentations allowing air to pass to the space beneath the shield, which drains water to the outside through passage 3. There is a small gap between the panels and the blocks.
Patent GB-599781-A (GB)
Title: Improvements relating to slicing machines
IPC: B26D7/06
Filed: 1945-11-16
Abstract: 599,781. Slicing-machines. BERKEL & PARNALL'S SLICING MACHINE MANUFACTURING CO., Ltd., and THOMAS, H. (U.S. Slicing Machine Co., in part). Nov. 16, 1945, No. 30760. [Class 28 (ii)] In a slicing-machine, the pusher plate 33 which normally presses (by springs 62, 63) a block of meat &c. towards the plane of a rotated disc knife 6 is constrained to move parallel to this plane throughout its range of movement by link and lever mechanism. The mechanism comprises a pair of parallel links 54, pivotally mounted on a slider plate 57 slidable on a rod 59 and coupled to carriage 34. A control link 66 constrains the part 42, coupled to the pusher plate to follow an approximate straight line motion. The pusher 33 includes a front plate 34 having gripping teeth 36 on its flat surface and serrated teeth 35 on its bottom edge, which may be used to grip on food by top pressure. The plate 34 is connected to an arm 38, pivoted at 39 to a bracket 40, pivoted on 42 so that the pusher may be lifted about the pivot 39 and also swung horizontally to clear the table 31. The arm 38 carrying the pusher plate 34 can be locked in slicing position by a spring-pressed plunger 51, releasable by a handle 47. A cam 50 engaging a spring- pressed plunger 51 maintains the pusher 33 in food slicing position, the edge teeth 35 being just clear of the plate of the food holder 31. A hand releasable latch 72 locks the pusher plate 33 in its full retracted position. A handle 78, Fig. 2, is provided for manual reciprocation of the carriage 16 to advance the food block to the knife. The pusher plate 33 may therefore be lifted above a pivot 39 and sprung laterally about 'a pin 43, Fig. 7 (not shown), and then be lowered alongside the side wall 31B of the holder into an inoperative position. In a modification, the pusher plate may be lowered behind the wall 31B, so that it provides no obstruction in the food holder itself. When the food block is to be engaged on its top by the serrated edge 35, the plate 33 is held down on the block by a spring-pressed plunger 51, Fig. 8, acting on a cam 50, attached to the bracket arm 38 carrying the pusher. A stop 40A limits this action so that the serrated edge will not contact the bottom surface of the food holder 31.
Patent GB-653226-A (GB)
Title: Improvements in or relating to process steam installations
IPC: F04F5/46
Filed: 1948-11-29
Abstract: The supply of steam through a duct 1 to heat exchangers such as evaporators and distillers, which are operated with steam obtained from the exhaust of engines &c., is boosted when required by injecting high-pressure steam via nozzles 5 ... 7 into a venturi 4 through which the supply flows when a valve 2 is closed. Injection takes place in three stages in accordance with pressure drops below 8, 6 and 4 pounds per square inch, and the nozzles are supplied from a main 11 through valves 8 ... 10 operated by servos which are responsive to these pressures.  The valve 2 is closed when the valve 8 opens, and the throat area of the venturi is varied by a needle 16 moved in two steps as the valves 9, 10 open.  <PICT:0653226/III/1>
Patent GB-208866-A (GB)
Title: Improvements in and relating to propelling means for yachts and like small vessels
IPC: B63H20/14
Filed: 1922-11-11
Abstract: 208,866. Stewart, N. F. Nov. 11, 1922. Driving-arrangements for screw propellers ; detachable installations.-A yacht is provided with a driving propeller and means whereby it can be operatively connected with and driven by an outboard motor propelling set, the latter being removable for use on the dinghy. The yacht a has a propeller b permanently supported in a stern tube d and carrying a gear wheel on the inboard end of the propeller shaft f. An ordinary detachable installation c is adapted to be supported on an inclined board i and the propeller shaft has a gear wheel j which is steadied by a bracket k and which meshes with the gear wheel on the shaft f. When the installation c is detached for use on the dinghy, the wheel j is removed and boss fairing member secured in its place. A pump may be driven off the shaft f. In a modification the propeller of the out. board installation c is removable and the driving pinion can be attached in its place when installed in the yacht.
Patent GB-963272-A (GB)
Title: Deodorant compositions
Inventor: KULKA KURT
IPC: A61L9/01
Filed: 1961-08-28
Abstract: The invention relates to the preparation of 2-ethyl hexyl acetoacetate from the reactants 2-ethylhexyl alcohol and methylacetoacetate, of geranyl acetoacetate from geraniol and methyl acetoacetate, of anisyl acetoacetate from anisyl alcohol and methylacetoacetate, of isoamyl benzoylacetate from isoamyl alcohol and ethyl benzoyl acetate, and of di-n-hexyl malonate from diethyl malonate and n-hexyl alcohol; and of lauroyl acetone from ethyl laurate and acetone by the Claisen acylation using sodium hydride.ALSO:Aerosol compositions comprise esters of betaketocarboxylic acids in which the carbonyl and carboxylic groups are separated by a methylene group, diketones in which the carbonyl groups are separated by a methylene group or esters of malonic acid and a pressurized propellant, e.g. air, nitrogen or a halogenated hydrocarbon, e.g. trichloro-mono-fluoromethane and dichlorodifluoromethane and mixtures thereof.  The composition may also contain solvents, e.g. alcohols such as isopropyl alcohol, propylene glycol or triethylene glycol or hydrocarbons.ALSO:Air is deodorized by spraying into the impure air a deodorant composition comprising one or more compounds having an activated methylene group and being selected from esters of b -ketocarboxylic acids in which the carbonyl and carboxyl groups are separated by a methylene group, diketones in which the carbonyl groups are separated by a methylene group and esters of malonic acid.  The composition may be in the form of a solution in a solvent such as an alcohol, e.g. isopropyl alcohol, or hydrocarbons, or an aerosol containing a pressurized propellant which is a compressed gas, e.g. nitrogen or air, or a normally gaseous material maintained in liquid phase under pressure, e.g. a halogenated aliphatic hydrocarbon or mixtures thereof.  The compositions may also contain polyhydric alcohols, e.g. propylene glycol and methylene glycol, bactericides and perfumes.  Typical active ingredients are: 2-ethyl hexyl aceto acetate, geranyl acetoacetate benzyl aceto acetate, ethyl benzoyl acetate, di-n-hexyl malonate, 2,4-pentadione, 1-phenyl-1,3-butadione, lauroyl acetone and anisyl acetoacetate.
Patent GB-207366-A (GB)
Title: Improved method of distillation
IPC: B01D3/38
Filed: 1922-11-13
Abstract: 207,366. Thermal Industrial & Chemical (T.I.C.) Research Co., Ltd., and Morgan, J. S. Nov. 13, 1922. Distilling plant and processes; hydrocarbons, distilling.-Liquid containing at least three constituents such as coal tar, crude petroleum &c. is treated to separate the constituents by passing steam from a pipe 1, Fig. 1, into the liquid contained in a still 2, so as to vaporize two of the constituents. The unvolatilized constituent is collected in a vessel 4. The mixture of steam and vapours is treated in a condenser 3 so as to condense one of the constituents which is collected in a vessel 5. Steam and vapours of the remaining constituent are passed into a further quantity of the mixed liquid contained in a still 7 as to vaporize an additional quantity of the third constituent, which is condensed from the steam in a condenser 8 and collects in a vessel 9. The mixture of two constituents which remains in the still 7 is passed into the still 2. The mixture of steam and vapours of two constituents obtained in still 1 may be treated to condense both constituents, which are afterwards separated by treatment with the residual steam after being heated to a suitable temperature. Alternatively, the liquid may be separated into fractions by distillation, the residue in the still may be treated with superheated steam, and the steam treated to condense the vapours, the steam being afterwards used to separate the constituents of the fractions. The steam may be finally used to preheat the liquid to be distilled. As applied to the distillation of coal tar; wet tar is passed from a tank c by a pump b through a pipe d into the jacket of a reflux condenser e, and passes away by a pipe g to a vessel f, in which vapours of water and light oil are formed. These vapours are led by a pipe f<1> to a condenser h. The dehydrated tar is passed by a pump i into a leadbath still a kept at a temperature which vaporizes all volatile constituents except anthracene oil. The residue from the still is atomized by superheated steam in a tower l, from which pitch flows away through a pipe l<1> and steam and anthracene oil vapours pass by a pipe l<2> and a worm in the vessel f, where anthracene is condensed. The steam, separated in a trap m is passed by a pipe n, into the inner chamber of the reflux condenser e where it serves to separate the condensing oils into a heavy oil which leaves the condenser by a pipe o and a light oil which passes as vapour with the steam along a pipe p to the condenser q which serves as preheater for the tar. Specification 184,624 is referred to.
Patent GB-666624-A (GB)
Title: Pulse generating circuits
IPC: H03K3/45
Filed: 1949-12-02
Abstract: 666,624. Wave-form changing circuits. BRITISH THOMSON-HOUSTON CO., Ltd., and MELVILLE, W. S. Dec. 2, 1949, No. 31042/49. Class 38 (ii). A pulse generating electric circuit, as for radar pulse modulators, nuclear particle accelerators, impulse-testing generators and pulse and initiating circuits, wherein the load R is series connected with a saturable cored reactor P whose saturated and unsaturated impedances are respectively low and high compared with the load impedance, and the load R and reactor P form a discharge circuit for a capacitative element C2 series connected with a gridcontrolled valve V and an inductance L across a capacitor C1. The latter, when charged from an A.C. supply D, such as is described in Specification 666,575, in turn charges, when the valve is made to conduct, through the current limiting inductance L, the capacitative element C2, no current flowing in the load circuit due to the high unsaturated reactor impedance, but when the voltage has risen such as to fully charge the element C2 the reactor P saturates, its impedance drops, and a pulse flows through the load. The element C2 may be a pulseforming network of the artificial transmission line type. The reactor P, which has a polarizing winding W carrying the charging current of capacitor C1, or alternatively is connected to a separate D.C. supply or a decoupling circuit, has a core, such as of 50-50 coldrolled nickel-iron, giving a high ratio, of up to 1000, of unsaturated to saturated impedance. The grids of the rectifying valve V, preferably a " thyratron, " are controlled by valves or peaking transformers (not shown). In a modification, a step-up transformer is interposed between the valve V and element C2 should the voltage of the required pulse be in excess of that suitable for the valve, the transformer having sufficient inductance to replace the inductance L. In another modification, providing for rate of rise of load currents greater than that suitable for the valve V, capacitative elements and reactors are connected in the discharge circuit as described in Specification 666,574, the impedances of each reactor varying in a particular manner described in the Specification. In a further modification, two valves in opposition are parallel connected for fullwave operation, another load comprises two ignitron valves connected through rectifiers to oppositely wound transformer secondary windings.
Patent GB-857547-A (GB)
Title: Trifluoromethyl-phenothiazine derivatives
IPC: C07D417/06
Filed: 1956-12-12
Abstract: The invention comprises compounds of the general formula: <FORM:0857547/IV(b)/1> wherein A is a C1-8 alkylene group B is a basic nitrogen containing radical with fewer than twelve carbon atoms and acid addition salts thereof and the preparation thereof by reacting a 2-trifluoromethyl phenthiazine (with (a) a compound of the general formula: B-A-X. wherein X is a halogen atom (b) a C1-8 alkanoyl halide and reducing the resulting carbonyl compound.  (c) a halo-(C1-8 alkanoyl) halide treating the resulting product with a compound BH and reducing the resulting compound or (d) a halo-(C1-8 alkanoyl) halide, reducing the alkanoyl halide and reacting the product with a compound BH, and the preparation of the acid addition salts by reacting the fire base with an approximately an equivalent of the acid. 10-[21-(N-211-Hydroxyl ethyl N-ethylamino)-ethyl]-2-tri fluoromethyl-phenthiazine is prepared by reacting N, N-di-(2-chloroethyl)-ethylamine with sodium benzylate and reacting the N-(2-benzyloxyethyl)-N-(21-chloroethyl) ethylamine with 2-tri-fluoromethyl phenthiazine and hydrogenating the resulting benzyloxy derivative.  2-and 4-Trifluoromethyl phenthiazines are prepared by reacting 3-trifluoromethyl diphenylamine with sulphur in the presence of iodine.
Patent GB-249914-A (GB)
Title: Process of manufacturing sulphuric acid
IPC: C01B17/84
Filed: 1924-12-29
Abstract: 249,914. Petersen, H. Dec. 29, 1924. Sulphuric acid.- The filling or packing material used in the reaction enclosures of a plant for the manufacture of sulphuric acid according to the chamber method is such that its diameter does not exceed 40 mms. and may be as small is 1 mm., the smaller filling being employed in the enclosures functioning a.s Gay Lussac towers. In the complete plant shown in the Figure, in addition to the acidforming enclosures 2, 4 an additional enclosure 3 is employed in which filling having a diameter greater than 40 mms. may be used. This enclosure 3 may be irrigated with water, sulphuric acid or nitrous-sulphuric acid having a concentration of 63‹ BÚ or may not be irrigated at all, and the gases preferably pass through it in a downward direction. Acid of 54-58‹ BÚ is used in the main acid-forming enclosures 2, 4 and the enclosures 1, 5 function as Glover and Gay Lussac towers respectively.
Patent GB-849310-A (GB)
Title: Improvements in or relating to the attachment of railway brake shoes to brake heads
IPC: F16D65/06
Filed: 1957-10-04
Abstract: 849,310. Brake shoes for railway vehicles. AMERICAN BRAKE SHOE CO. Oct. 4, 1957 [Oct. 8, 1956], No. 31129/57. Class 103 (1). A railway brake structure comprises a brake shoe 12 having arcuate face and back 13, 15 and toe guides 17, 18 between, and projecting inwardly beyond, pairs of end stops 19, 20 at each end of the shoe, and a brake head 10 having toes 37, 38 embracing the toe guides 17, 18 adjacent the end stops 19, 20 to prevent endwise movement; the shoe 12 includes a U-shaped central attaching lug 25 having a strap portion 27 defining a keyway 30, the portions 33, 34 of the shoe back 15 between lug 25 and guides 17, 18 being smooth and uninterrupted and with which a face plate 35 integral with head 10 complementally engages, the plate ends E-1 being disposed adjacent the inner toe guide ends E and having an opening 40 for lugs 25 and a pair of further openings 46, 47 spaced equidistant on opposite sides of the opening 40; a resilient elongated key 31 is disposed in the keyway 30 with a central arcuate portion 51 in tight engagement with the strap 27 of lug 25 and a portion 52 engaging the portion 35S of plate 35, an offset abutment 56 being disposed in opening 47 to prevent inadvertant displacement of the key.
Patent GB-244758-A (GB)
Title: Improvements in and relating to shaft packings
IPC: F16J15/447
Filed: 1925-12-10
Abstract: 244,758. British Thomson-Houston Co., Ltd., (Assignees of Campbell, A. (Administratrix of Campbell, W.)). Dec. 18, 1924, [Convention date]. Balancing moving parts. -In packing for turbine &c. shafts of the type comprising two sets of packing teeth 29, 31 carried by the casing at different radial distances from the shaft and co-operating with radial surfaces on a collar 26 on the shaft, axial movement of one of the parts maintaining a balance of pressure, the differences of pressure may be utilized to wholly or partially balance the axial thrust of the turbine.
Patent GB-1516991-A (GB)
Title: Heater boiler
IPC: F22B7/12
Filed: 1975-07-25
Abstract: 1516991 Boilers T MULLER 25 July 1975 [4 April 1975] 31200/75 Heading F4A In a sectional boiler, two boiler members la, lb are symmetrically disposed on opposite sides respectively of the boiler axis E-E and each boiler member consists of a separate water chamber 2a, 2b which define recesses to form a fire chamber 3 and smoke gas flues 5,6,7, leading to an exhaust smoke tube 5. The separate water chambers 2a, 2b are connected together in parallel to form a common water supply line 15 and a water return line 16. A flue deflection plate 4 is provided in the upper region of the fire chamber 3. The boiler members 1a, 1 are made of cast iron and are braced to one another and to a surrounding boiler housing 18 by means of anchor bars 13 and nuts 14. A burner door 10 is provided at the front end of the housing 18 and is provided with an aperture 21 for a burner and an explosion door 12, the door 10 tightly sealing the fire chamber and the smoke gas flues.
Patent GB-1459331-A (GB)
Title: Clear stable unsaturated polyester resin/styrene solutions
IPC: C08G63/00
Filed: 1974-07-15
Abstract: 1459331 Stable unsaturated polyester/styrene solutions KAO SOAP CO Ltd 15 July 1974 [7 Aug 1973] 31247/74 Heading C3P A polymerizable styrene solution containing an unsaturated polyester, said polyester being prepared by condensing, at 140-200‹ C., stoichiometric amounts of a mixture of (a) an acid component having 50-85 mole per cent of fumaric acid and/or maleic anhydride and 50- 15 mole per cent of chlorendic (hexachloroendomethylenetetrahydrophthalic) acid or anhydride with (b) a glycol mixture containing 80-96 mole per cent of neopentyl glycol or ethylene glycol and 20-4 mole per cent of dibromoneopentyl glycol or dichloroneopentylglycol wherein the weight ratio of said polyester to styrene is from 1 : 1 to 5 : 1. Examples describe styrene solutions of polyesters derived from (1) neopentyl glycol, dibromoneopentyl glycol, maleic anhydride and chlorendic anhydride; (2) ethylene glycol, diohloroneopentyl glycol, fumaric acid and chlorendic acid; (3) neopentyl glycol, dibromoneopentyl glycol, fumaric acid and chlorendic anhydride. The storage stability of the solutions is illustrated by comparison with styrene solutions of polyesters derived from (1) neopentyl glycol, maleic anhydride and chlorendic anhydride; (2) ethylene glycol, maleic anhydride and chlorendic anhydride.
Patent GB-1451599-A (GB)
Title: Biological reagent
IPC: G01N33/543
Filed: 1972-07-04
Abstract: 1451599 Biological reagent WELLCOME FOUNDATION Ltd 3 Oct 1973 [4 July 1972] 31310/72 Heading G1B A biological reagent for use in the identification of the species of origin of a mammalian or avian body fluid comprises adsorbent inert particles sensitized with antibodies raised, against a serum protein of a first species of mammal or bird, in a second species of mammal or bird of a different genus to that of the first species. The inert particles may be of silica, bentonite, charcoal, alumina, kaolin, acrylic acid polymers, or polystyrene latex. A test kit for the above identification comprises a kit of two vessels, one vessel containing the above reagent, the other vessel containing a buffer such as glycine-sabine.
Patent GB-325820-A (GB)
Title: Improvements in or relating to power transmission mechanism and to actuating and other devices for use in connection with the same
IPC: F16C1/16
Filed: 1928-10-30
Abstract: 325,820. Amalgamated Carburetters, Ltd., and Tisdell, T. A. Oct. 30, 1928. Bowden mechanism. - To enable the casing end e to maintain alignment with the cable f, the terminals of the two elements are seated in rotary members d, h mounted respectively in the fixed bracket c, which may be integral with a handle bar clip a, and the pivoted actuating or actuated member b. The rotary members d, h are laterally slotted to admit the cable and formed with larger recesses for the thimble e and nipple i, the lever and bracket being correspondingly formed with narrow and wider slots to enable the parts to be assembled.
Patent GB-1045396-A (GB)
Title: Thermionic cathodes
Inventor: MILNE JOHN EDWARD
IPC: H01J1/14
Filed: 1965-07-23
Abstract: 1,045,396. Thermionic cathode materials and processing. STANDARD TELEPHONES & CABLES Ltd. July 23, 1965, No. 31516/65. Heading H1D. A thermionic cathode comprises a refractory metal base, a barrier layer of a refractory carbide of a metal having a higher affinity for carbon than does the base metal, and an emissive layer of lanthanum boride. In particular, a directly-heated cathode may comprise a W or Mo filament coated by spraying with a mixture of zirconium carbide. After sintering, an outer layer of lanthanum boride is applied by painting, spraying or electrophoresis. A specific example is given.