baber/WOPTO huggingface dataset:
Patent GB-575997-A (GB)
Title: Improvements in fluid pressure control apparatus
IPC: B60T13/14
Filed: 1943-10-23
Abstract: 575,997. Fluid pressure control valves. WESTINGHOUSE BRAKE & SIGNAL CO., Ltd. (Westinghouse Air Brake Co.). Oct. 23, 1943, No. 17487. [Class 135] [Also in Group XXXIV] A fluid pressure control valve of the selflapping type for use with brakes, clutches, &c. comprises supply and release valves arranged to be manually operated in one direction by a handle or the like and to be operated in the reverse direction automatically by fluid pressure. The valve casing is in three parts 4, 5, 6 bolted together. The part 4 comprises a chamber 9 to which pressure fluid is admitted through a pipe 1 and flows under control of a valve 10 into a chamber 13 from which it may pass to the brake cylinder by a pipe 2. The inlet valve 10 is integral with an exhaust valve 21 which controls the escape of fluid through a hollow plunger 17, sliding in a piston 15, and thence through ports 22 in the plunger to the exhaust pipe 3. Springs 14, 19 support the valve 10 and plunger 17. To admit pressure fluid to the brake &c., the handle 43 is turned and with it the spindle 35, the lower end 34 of which is splined to engage with the correspondingly splined upper end 31 of a rotatable member in screw-threaded engagement with a screwed cylindrical member 23. Rotation of this member 31 causes its lower end 33 to engage with the plunger 17 which is pressed downwardly so that the seat 20 at its lower end engages the exhaust valve 21 and closes it. Further downward movement of the plunger 17 opens the inlet valve 10 and pressure fluid is admitted to the chambers 9 and 13 and to the brake cylinder. When the pressure in the chamber 13 reaches a predetermined value the piston 15 is moved upwardly and moves upwardly the cylinder 23 and members 31, 33 against the action of the loading spring 25. The valves 10, 20 and plunger 17 rise under the action of the springs 14, 19 until the valve 10 closes, the exhaust valve remaining closed and the pressure in the chamber 13 and brake cylinder being maintained. To release the pressure fluid, the handle 43 is turned in the opposite direction and the plunger 17 is raised by the spring 19 to open the exhaust valve 20. To prevent unintentional movement of the handle 43, the friction between the screw threads of the member 31 and cylinder 23 is increased by providing on the lower end 33 of the valve operating assembly a screwed sliding member 36 and interposing a spring 38 under compression between the members 31 and 36. The member 23 is provided at its upper end with vertical slots 27 with which engage lugs 28 of an adjusting member 29 mounted on the upper end of the casing 5 and provided with teeth 49 by which it is rotated.
Patent GB-188019-A (GB)
Title: Improvements relating to the distillation of solid carboniferous matter
IPC: C10B1/04
Filed: 1921-06-28
Abstract: 188,019. Markham, C. P., and Staveley Coal & Iron Co., Ltd. June 28, 1921. Coking processes. -Bituminous fuels such as coal or cannel, and oil shales are distilled downwardly by a gradual and controlled combustion traversing the fuel bed from top to bottom, the progressive combustion and low temperature distillates being controlled by regulating the supply of air and steam to the top of the fuel column and the rate of withdrawal of the volatile products, the gases produced being mainly non- combustible. Suitable apparatus comprises a retort A having steam and air inlets C, D and a perforated bottom plate E, which may be swung on a pivot F to discharge the ash or semi-coke produced. The gas outlet G leads to a condenser I, syphon J, and a series nf water-cooled condensing columns K, a gas valve N and pump M controlling the pressure and flow of gas. The gases &c. then pass through condensing coils P and liquid separators Q, R. A vacuum of 5 inches of mercury may be maintained at the bottom of the fuel column. Only a small consumption of the fixed carbon takes place, a large yield of oils being obtained together with ammonia and organic acids. The temperature of the gases leaving the producer never exceeds 200‹ C. The Provisional Specification states also that the fuel may be fed continuously from below, and that the volatile products may be condensed by compression.
Patent GB-957409-A (GB)
Title: Synthetic waxes
IPC: C07C233/00
Filed: 1959-05-22
Abstract: Synthetic waxes are prepared by reacting dicarboxylic acids (6-12C) with a molar excess of one or more aliphatic diamines (2-6C) by heating at an elevated temperature until evolution of water ceases, and condensing the polyamide product with one or more aliphatic monocarboxylic acids (11-25C) in an amount from 1/20 to 1/10 mole per mole of diamine used in the first condensation and less than sufficient to condense with all the terminal amine groups in the polyamide product by heating the reactants at a temperature higher than the first condensation temperature until a homogenous mass is obtained.  Ethylene diamine, 1,2- and 1,3-diaminopropane and 1,6-diaminohexane, or mixtures thereof may be used, and adipic and sebacic acids are preferred acids.  Mixtures of acids may be used and other dibasic acids such as succinic and phthalic acids may be included in the first stage. Lauric, oleic, palmitic, stearic or 12-hydroxystearic acids or mixtures thereof, and mixtures of long chain fatty acids derived from the hydrolysis of natural oils and fats such as linseed, castor, sunflower oils and tall oil, hardened castor oil or dehydrated castor oil fatty acids are examples of the monocarboxylic acids.  The products may be used in a solvent, e.g. hot dimethylformamide, as coating compositions for the interior of steam condensers.ALSO:Synthetic waxes are prepared by reacting dicarboxylic acids (6-12C) with a molar excess, of one or more aliphatic diamines (2-6C) by heating at an elevated temperature until evolution of water ceases and condensing the polyamide product with one or more aliphatic monocarboxylic acids (11-25C) in an amount from 1/20 to 1/10 mole per mole of diamine used in the first condensation and less than sufficient to condense with all the terminal amine groups in the polyamide product, by heating the reactants at a temperature higher than the first condensation temperature until a homogenous mass is obtained. Ethylene diamine, 1,2- and 1,3- diaminopropane and 1,6-diamino hexane, or mixtures thereof may be used, and adipic and sebacic acids are the preferred acids. Mixtures of acids may be used and other dibasic acids such as succinic and phthalic may be included in the first stage. Lauric, oleic, palmitic, stearic, or 12-hydroxy stearic acids or mixtures thereof, and mixtures of long chain fatty acids derived from the hydrolysis of natural oils and fats such as linseed, castor, sunflower oils, and tall oil, hardened castor oil, or dehydrated castor oil fatty acids are examples of the monocarboxylic acids.  The products may be used, in a solvent, e.g. hot dimethylformamide, as coating compositions for the interior of steam condensers.
Patent GB-976543-A (GB)
Title: Improvements in and relating to wheeled load carrying platforms
Inventor: CHANTLER DONALD AVERY
IPC: B62B3/065
Filed: 1962-05-08
Abstract: 976,543. Pallet trucks; loading vehicles. DURAMIN ENGINEERING CO. Ltd. May 7, 1963 [May 8, 1962], No. 17609/62. Headings B8E and B8H. A trolley for handling pallets or crates consists of a wheeled frame surmounted by one or more load-supporting members raisable by fluid pressure. The wheeled frame includes at least one longitudinal frame member comprising a horizontal yoke 12, Fig. 2, depending webs 13 and/or 14 (which support the axles 16 of wheels 15) and a flange 17, whilst the loadsupporting members each consist of or include an inverted-U-section element 19 which fits over the said frame member and has an inward flange 21 which co-operates with the flange 17 to limit the extent of load raising. The space enclosed between the yoke 12 and the element 19 provides a chamber 22 within which the fluid pressure raising means is housed. This means is preferably an inflatable tube 23 connected to a source of compressed air. The trolley of Fig. 1 (not shown) consists of two parallel longitudinal assemblies as in Fig. 2, bridged by cross-members to form a rectangular frame which also supports compressed air cylinders and valves to connect them as required to the tubes 23. In Fig. 3, the U-section loadsupporting members 18 do not surmount the wheel-carrying frame members 10, but lie beside them and accordingly have outward flanges 21 replacing the inward flanges 21 of Fig. 2. Fig. 4 shows a detail of a trolley movable in two perpendicular directions and employing two sets of wheels 15, 15a, either of which can be raised clear of the ground by pressurizing the table 23a or 23 of the other. Fig. 6 (not shown) depicts a modification in which the U-section load-supporting members carry L-shaped brackets. Two such parallel members, with their brackets facing inwardly, facilitate the handling of crates. Loading vehicles.-A vehicle platform, preferably equipped with rails 35 for the trolley wheels 15, can use the trolley to convey palletised or boxed loads from one end of the vehicle to the other and the lifting mechanism of the trolley used to lift such loads at the former end and deposit them at the latter end. Compressed air for charging the cylinders on the trolley may, in this application, be derived from the vehicle's own pneumatic pressure system.
Patent GB-949899-A (GB)
Title: Process for the preparation of allene esters
IPC: C07C69/145
Filed: 1962-05-08
Abstract: Allene esters are prepared by treating an ester of an ethynyl carbinol in a non-acidic reaction medium with a rearrangement catalyst consisting of a salt of an element of Group IBETA of the Periodic System, the reaction involving the rearrangement: <FORM:0949899/C2/1> The reaction medium is preferably a neutral or slightly basic medium and may contain a neutral organic solvent. Preferred starting materials are those of the formula: <FORM:0949899/C2/2> wherein R1 represents a saturated or unsaturated hydrocarbon radical or a hydroxy or esterified hydroxy derivative thereof, R2 represents an alkyl group containing up to six carbon atoms, or R1 and R2 together with the carbon atom to which they are attached represent a 5- or 6-membered carboxylic ring, and 'Acyl' stands for the acyl radical of an organic carboxylic acid, preferably of acetic or p-nitro-benzoic acids. Preferred catalysts are those which are soluble in the reaction medium, several such catalysts being specified.  The reaction is preferably carried out under anhydrous conditions in the absence of oxygen. The ester starting materials, which are stated to be novel, can be prepared, for example, by condensation of acetylene with the appropriate ketone and esterification of the tertiary ethynyl-carbinol formed thereby.  The allene esters may be converted to unsaturated aldehydes by saponification. Examples are given. In Example 1, the silver derivative of 3-methyl-3-(p-nitro-benzoyloxy)-butyne-(1) is formed when the reaction mixture is treated with aqueous ethanolic silver nitrate solution to remove unreacted acetylenic starting material.
Patent GB-1510692-A (GB)
Title: Railway car cushioning apparatus
IPC: B61G9/04
Filed: 1975-04-28
Abstract: 1510692 Railway vehicle draught and buffing gear KEYSTONE INDUSTRIES Inc 28 April 1975 [30 April 1974] 17625/75 Heading B7T A railway car is provided with an hydraulic cushioning unit 17 for cushioning draught and buffing forces applied to the railway car by the shank 18 of a railway car coupler (16), Fig. 1 (not shown). The cushioning unit 17 comprises a piston-rod 33 carrying a piston (not shown) axially movable in a housing 34 which is restrained against axial movement by the engagement of lugs 52, 53 of a cylinder head 51 in vertically extending slots 61 of castings 57, 58 mounted in openings 54, 55 provided in side walls 11, 12 of the centre sill 10 of the railway car. The cylinder head 51 is supported on blocks 73 located on plates 71 bolted to horizontal flanges 14 of the sill 10. Draught forces are transmitted from the coupler shank 18 through a pivot pin 21 and a yoke 19 to a plate 32 secured to the piston-rod 32. Buffing forces are transmitted from the coupler shank 18 through a follower 31 and the plate 32 to the piston-rod 33. Movement of the yoke 19 is limited by engagement of the yoke with stops 82 or with the end face 87 of a further cylinder head 74. Return spring assembly.-The railway car is also provided with a return spring assembly 90 which urges the yoke towards its forward position. The spring assembly 90 comprises a bar 113 which is engaged by a lug 46 of the plate 32 and which is secured to laterally spaced tubes 111 mounted around respective sets of springs 93.
Patent GB-439813-A (GB)
Title: Improvements in or relating to electrical time base circuit arrangements
IPC: H04N5/12
Filed: 1934-06-14
Abstract: 439,813. Valve generating circuits. MARCONI'S WIRELESS TELEGRAPH CO., Ltd., Electra House, Victoria Embankment, London, and KEMP, R. J., Red Tiles, Patching Hall Lane, Chelmsford. June 14, 1934, No. 17659. [Classes 40 (iii) and 40 (v)] An electrical time-base generator for scanning in television and like purposes of the kind in which discharge of a condenser is suddenly effected by a gaseous discharge tube with discontinuous grid control, synchronization is effected by varying the magnetic field in the discharge tube. As shown, the system is applied to a double generator operating at line and frame frequencies in a television apparatus. The condensers K<1>, K<11> are charged respectively through the anode-cathode paths of valves V<1>1, V<11>1, and are discharged through tubes TH<1> TH<11>. Field coils F<1>, F<11> surrounding each tube are connected in series in the plate circuit of an amplifier AV which has the synchronizing impulses applied to its grid at IN. Connections are made across the condensers K<1>, K<11> to deflecting plates P, P<1> of the cathode ray tube. Each tube TH<1>, TH<11> and its associated field coil F<1>, F<11> is enclosed in a screening-box.
Patent GB-836245-A (GB)
Title: Optical coding system
IPC: H03M1/00
Filed: 1957-06-04
Abstract: 836,245. Electric selective signalling systems. ATELIERS DE CONSTRUCTION BEAUDOUIN. June 4, 1957 [June 12, 1956], No. 17704/57. Class 40 (1). [Also in Groups XX and XL (b)] An arrangement for converting variations of a magnitude as indicated by displacement of a member into a set of digital code indications comprises an optical system including an optical scanning element (e.g. a mirror) secured to the displaceable member and adapted to direct on to light-responsive receiving means a light beam in the path of which is interposed a coding screen having opaque and clear areas so arranged that different screen portions provide different patterns constituting digital code representations. As shown, light from lamp 5 is passed through lens 6 and a coding screen 7 to a mirror 4 which is deflected in accordance with variations in a magnitude and reflects the light towards a moving film 1. In front of film 1 is an opaque screen 2 with a slot 3, parallel to the rotary axis of mirror 4, and a rotary shutter 8 having a radial slot. Screen 7 has, as shown in Fig. 2, transparent and opaque areas adapted to represent numbers in a selected digital code (e.g. Gray's minimum error code) so that, each time film 1 is uncovered by shutter 8, there will be imaged thereon the digital code representation corresponding to the mirror position (and thus the magnitude) at that time. An analogue indication of each mirror position is simultaneously formed on the film 1 through reflection by mirror 4 of light from a lamp 9 on to a mirror assembly 10 which causes the light beam to move parallel to slot 3. Mirror 4 may be rotated about an axis perpendicular to slot 3, in which case the assembly 10 is omitted. In place of film 1, an array of photo-electric cells may be provided to deliver voltage pulses corresponding to the mirror position and these pulses may be fed after amplification to a digital computer or digital remote transmission system.
Patent GB-264397-A (GB)
Title: Improvements in and relating to the actuating means of counting-mechanism
IPC: G05D23/12
Filed: 1926-07-15
Abstract: 264,397. Tarry, G. July 15, 1926. Counters actuated by reciprocating mechanism; affording several rates of actuation.---In counters for fluid meters a thermostatically controlled means is provided to compensate for temperature variations by limiting the throw of the actuating lever. As shown in Figs. 1 and 2, the counter spindle 10 has mounted thereon a series of ratchet, wheels 9 with the teeth disposed in advance relatively to each other. An actuating lever 8. pivoted on the spindle 10, has mounted thereon a corresponding number of spring controlled pawls 6 with the ends thereof in alignment, a similar set of detent pawls 7 being provided to prevent retrograde movement of the spindle. Mounted on the lever 8 is a bracket 5 adapted to co-operate with the stop 1 of a thermostat 2 whereby the extent of oscillation of the lever 8 is controlled.
Patent GB-319073-A (GB)
Title: Improved compositions and materials comprising cellulose esters or ethers
IPC: C08K5/20
Filed: 1928-06-19
Abstract: 319,073. British Celanese, Ltd., and Daly, A. J. June 19, 1928. Proofing against flre.-Plastic or celluloid-like masses, artificial fibres and other products having a basis of organic esters or ethers of cellulose are rendered less or non-inflammable by incorporating therein a bromine derivative of an acidylated aromatic amine. Suitable bromine derivatives are acetyl-4-bromoethylanilide, acetyl-2.4- or -3.4- dibromanilide, acetyl-2.4.6- or -2.4.5-tribromanilide, diacetyl-2.4.6-tribromanilide, acetyl- 2.4.6 - tribromomethylanilide, diacetyl-3.5-dibromo-2-toluidide, diacetyl-1.3.6-tribromo-2-naphthalide, and benzoyl-2.4.6-tribromanilide. The bromine derivatives may be incorporated at any stage in the manufacture, but should be employed under substantially neutral conditions. A small proportion of dicyandiamide or other compound capable of absorbing bromine may be included in the products. The products may include also plasticizers such as the aryl sulphonamides described in Specifications 132,283, 133,353. 154,334, and 164,386, [all in Class 2 (ii), Cellulose &c.], antiacid substances such as urea or its alkyl derivatives, other inflammability-reducing substances such as tricresyl phosphate, fillers, colouring matters, and other additions.
Patent GB-1042214-A (GB)
Title: Improvements in or relating to high pressure boiler installations
IPC: B01J19/00
Filed: 1964-04-29
Abstract: Water used in boiler installations requiring neutral pH range is treated by ion exchangers e.g. in sulphite form or other absorbents to remove oxygen and then given a complete desalination treatment.
Patent GB-811658-A (GB)
Title: A process for the production of granular salt mixtures containing perborates
IPC: B01J2/14
Filed: 1956-06-08
Abstract: A composition containing a perborate is obtained by spraying a solution containing a salt which crystallizes with binding water of crystallization upon a moving layer of perborate particles not dispersed in air, the quantity and concentration of the sprayed-on solution being such that the water is completely bound as water of crystallization in the salt mixture.  The spraying solution, which may be saturated, may comprise borax, sodium- or potassium-carbonate, -sulphate, -ortho, -pyro or -polyphosphates and may also contain dispersed magnesium or other insoluble silicate, magnesium phosphate, magnesium soaps or metastannic acid.  The perborate may be wholly or partially dehydrated.  The perborate particles may be at room temperature and the spraying solution may be at 15 DEG  to 95 DEG  C. As shown in Fig. 1, perborate particles are supplied from a vessel 1 via a metering device 2 and funnel 3 on to an inclined rotating plate 4, the inclination of which is adjustable.  A calcined salt <PICT:0811658/III/1> <PICT:0811658/III/2> may be supplied from a vessel 5.  The aqueous solution of the salt which crystallizes with binding water of crystallization (which may be the same salt as is contained in the vessel 5) is contained in a vessel 7 maintained under pressure by means of gas supplied from a conduit 8 and is sprayed upon the perborate from a nozzle 12, the conduit 10 to which may be heated by an element 11.  The granulated material runs over the rim of the plate 4 into a funnel 13 and thence by a tube 14 into a vessel 15 to which air is supplied under pressure, thus impeding the fall of the granules and aiding delivery of the granules via pipes 19 and 20 to a separator 21 which is exhausted by a fan 27. From the separator 21, fine particles are withdrawn into a cyclone 23 and are returned to the funnel 3, and the separated granules are delivered to a shaker screen 28 and are removed through a tube 29. The coarse-grained material is broken up by a mill 30 and returned to the separator 21.  In a modification, the rotating inclined plate 4 may be replaced by a rotating inclined cylinder 62, Fig. 3a, to which the perborate is delivered by a funnel 61 and the salt solution by nozzles 57.ALSO:A composition containing a perborate is obtained by spraying a solution containing a salt which crystallizes with binding water of crystallization upon a moving layer of perborate particles not dispersed in air, the quantity and concentration of the sprayed-on solution being such that the water is completely bound as water of crystallization in the salt mixture.  The spraying solution, which may be saturated, may comprise borax, sodium- or potassiumcarbonate, -sulphate, -ortho-, -pyro-, or -polyphosphates and may also contain dispersed magnesium or other water-insoluble silicate, magnesium phosphate, magnesium soaps or metastannic acid. The perborate may be wholly or partially dehydrated.  The perborate particles may be at room temperature and the spraying solution may be at 15 DEG  to 95 DEG  C.
Patent GB-131789-A (GB)
Title: Improvements in Universal Joints.
Inventor: DAVIS ROBERT WILLIAM
IPC: F16D3/46
Filed: 1918-11-01
Abstract: 131,789. Davis, R. W. Nov. 1, 1918. Universal joints.- A sphere 16, Figs. 8 and 9, having four radial projections 22, 23 with lune-shaped ends 27, and circular grooves 17, 18, is seated between two similar forked shafts 1, 2. The shafts 1, 2 have spherical seatings 13 against which the sphere 16 may be held by yokes 19 fitting the grooves 17, 18. the yokes being attached to the shafts 1, 2 by set-screws 21. The external and internal surfaces of the prongs 15 of the shafts 1,2 are spherical, and the external surfaces of the prongs of each shaft work against spherical surfaces 5 in the end of the other shaft. The prongs of the forks fit over the surfaces 27 of the projections 22, 23, and their sides are so shaped as to fill the spaces between these projections.