baber/WOPTO huggingface dataset:
Patent GB-1188383-A (GB)
Title: Cooled Vane Structure for High Temperature Turbines
Inventor: KERCHER DAVID MAX
IPC: F01D5/18
Filed: 1967-05-05
Abstract: 1,188,383. Turbine and like blades. GENERAL ELECTRIC CO. May 5, 1967, No.21136/67. Heading F1T. A cooled turbine or like vane has a plurality of radially extending, axially spaced passageways formed in the body of the vane, passageways 40, 41 being provided adjacent the leading and trailing edges 37, 38 respectively, of the vane and each having an inlet 72, 75 for heat transfer fluid entry and an outlet 80, 82 for fluid exit, the remainder of the passageways 42 to 48 intermediate the leading and trailing edges being inter-connected to form at least one serpentine passage having a heat transfer fluid inlet and outlet, between which the cross-sectional flow area of the passage decreases. The invention is described with reference to a gas turbine rotor blade but is equally applicable to the vanes of gas turbine nozzle diaphragms and to vanes used in other high temperature turbomachines, such as high pressure compressors. The vane body 33 is aerofoil shaped and the passageways 40 to 48 are radial holes extending inwardly from the radially outer end 49 of the vane body to the base portion. A first serpentine passage comprises passageways 42 to 44 and a second serpentine passage the passageways 45 to 48. The outer end 49 of the vane body 33 includes an end wall 51 which closes, except for bleed openings 52, 53 and metering openings 54, 55, 57, the outer ends of the passages 42 to 48. The cooling fluid is relatively cool compressed air bled from an annular chamber which surrounds the combustion space of the gas turbine and fed to the interior of a generally elliptical cross-section member (68, Figs. 1, 2, not shown), inter-connecting the turbine rotor discs (22, 24). The air then flows through grooves (71) in the vane base (31) and is admitted to the interior of the vane body 33 through inlets 72, 73, 74, 75 communicating with the passageways 40, 42, 45, 41 respectively. The outlets 80, 82 are sized to throttle fluid-flow through the leading and trailing edge passageways 40, 41. The outlet means also includes the metering or throttling openings 54, 55, 57 in the end wall 51, the purpose of these openings being to control the fluid-flow through the serpentine passages.
Patent GB-1076356-A (GB)
Title: Improvements in or realting to x-ray tube operating circuits
Inventor: LAMBERT RAYMOND ARTHUR
IPC: H05G1/16
Filed: 1965-05-19
Abstract: 1,076,356. Supply systems for X-ray apparatus GENERAL ELECTRIC CO. Ltd. May 27, 1966 [May 19, 1965], No. 21206/65. Heading H2H. In a circuit employing the self-rectification properties of an X-ray tube 1 which is connected to an A.C. supply through a transformer, the voltage rise on negative half cycles prevented by an impedance 5 and silicon diode 6 in series with the primary winding 4 and another impedance 7À1 in parallel, or across a separate winding 9. A further diode 8À1 may be connected in series with the impedance 7À1. Preferably the ratio of the impedances is such as to substantially reduce the D.C. component of flux in the core. The shunt impedance may be alternatively connected across the secondary winding 2. A capacitor may be also connected across the primary winding if the circuit capacitance is insufficient.
Patent GB-135984-A (GB)
Title: Improvements relating to Internal Combustion Turbines.
Inventor: VILVANATHAN CHETPET SWAMINATHA
IPC: F02C5/00
Filed: 1918-12-19
Abstract: 135,984. Vilvanathan, C. S. Dec. 19, 1918. Combitied-flow type; working-fluid supply.-An internal-combustion turbine comprises a ccmpression stage 6, Fig. 1, which, compresses the combustible mixture into an intermediate chamber 7, where it is ignited for supply to the power stages 9. By controlling the admission of the compressed mixture to the chamber 7 by means of a valve, the combustion may be made periodic instead of continuous. Instead of having axial-flow elements, the compressor may comprise a rotor having a number of curved fluid channels 12, Fig. 3, fitted at intervals with reversed nozzles 22, the fluid being admitted at the axis and discharged at the periphery into a collecting-pipe. Such a rotor, with the direction of flow reversed, may be used also for the turbine. A number of such rotors may operate in series or in parallel.
Patent GB-716081-A (GB)
Title: Improvements in wet spinning of acrylonitrile polymers
IPC: D01F6/18
Filed: 1952-08-26
Abstract: In the manufacture of polyacrylonitrile fibres, a solution of polyacrylonitrile, or a copolymer thereof containing at least 80 per cent. by weight of acrylonitrile, in a mixture of ethylene carbonate and water, the water being present in an amount of 2.5-18.5 per cent. by weight of the solution, is extruded into a coagulating bath comprising ethylene carbonate and water, the ethylene carbonate concentration in the bath being 10-50 per cent. by weight.  The spinning solution, which may contain small amounts of polyhydric alcohols, e.g. ethylene, propylene or dipropylene glycol, preferably has a temperature of 40 DEG -80 DEG C. or above, and the "cloud point" of the solution is preferably below 67 DEG C.  The coagulating bath, which preferably has a temperature of 45 DEG -80 DEG C., may also contain small amounts of ethylene or dipropylene glycol, but ethylene carbonate and water preferably comprise at least 95 per cent. by weight of the bath.  The ethylene carbonate concentration of the bath may be maintained by continuously withdrawing portions of the bath, and these portions may be subjected to flash-distillation to remove the water, the residuum being used as solvent in preparing the spinning solution.  The fibres may be submitted to one or more stretching operations, e.g. an air-stretch followed by a hot water- or steam-stretch, and thereafter heat-treated in the relaxed condition, e.g. in hot water or steam.  Examples are given. Copolymers of acrylonitrile with vinyl esters, ethers, and ketones; acrylic acid and its esters and amide; methacrylic acid and its esters, amide and nitrile; maleic, itaconic, fumaric and crotonic acids and their esters, amides and nitriles; allyl alcohol and its esters or ethers; styrene and nuclear substituted styrenes, e.g. chloro- and dichlorostyrene; halogenated monoethylenic compounds such as vinyl chloride, vinyl fluoride, vinylidene chloride, 1, 2-dichloropropene-1, 1,2-dichloro-propene-2, allyl chloride, methallyl chloride, 2-chloro-allyl-alcohol and 1-allyloxy-3-chloro-2-propanol; N-vinyl compounds such as N-vinyl-pyrrolidone, N-vinyl succinimide or N-vinyl carbazole; N-tertiary butyl acrylamide, N-tertiary octyl acrylamide; and 2-or 4-vinylpyridine may be employed.
Patent GB-1111966-A (GB)
Title: Method of producing wool-like fibres from albumen-modified polyvinyl alcohol
IPC: D01F6/14
Filed: 1965-05-20
Abstract: A composition suitable for spinning to make wool-like fibres and comprising albumen-modified polyvinyl alcohol, is made by dissolving albumen in such a quantity of an aqueous solution of a hydroxide of an alkali metal, that the pH value amounts to 11.0-11.2 and the albumen concentration amounts to 12-16% by weight; polyvinyl alcohol is separately dissolved in such a quantity of water that the concentration of the solution amounts to 12-16% by weight, while immediately before spinning the solutions of albumen and of polyvinyl alcohol taken in a ratio by weight of 1:10 to 1:1 respectively are homogenized in a continuous manner. Preferably the polyvinyl alcohol should have a degree of polymerization of 1000 to 1800. The aqueous solution of polyvinyl alcohol may be prepared in such a way that at first the polyvinyl alcohol is swollen in water and subsequently is dissolved by heating it to 90-95 DEG  C. Albumens of animal or vegetable origin may be used.  The solutions of albumen and of polyvinyl alcohol should be mixed together in a time as short as possible before the spinning process to avoid undersirable changes occurring. Examples are given.
Patent GB-1240613-A (GB)
Title: Improvements in or relating to a support for chair-cushions
Inventor: NANNINGA HAIJO KLAAS
IPC: A47C7/16
Filed: 1969-04-28
Abstract: 1,240,613. Chair supports. RECTICEL N.V. 28 April, 1969 [29 April, 1968], No. 21496/69. Heading A4M. A support 1 for a seat or back cushion of a chair which comprises a metallic frame 7 over which a textile material 5 is stretched and having a layer 8 of rubber is manufactured by covering a form 4 with the textile material 5, e.g. a knitted fabric, applying a sheet of uncured rubber 6, then a metallic frame 7 preferably of steel, folding back and stretching the material over the frame 7, placing a layer of rubber 8 in the form and finally curing while exerting a uniform pressure so that an integral unit is formed.
Patent GB-1007514-A (GB)
Title: Improvements in pneumatic conveyors
Inventor: HALL WILLIAM BARRY
IPC: B65G51/02
Filed: 1963-05-30
Abstract: 1,007,514. Pneumatic conveyers. B. P. HALL (TEXTILES) Ltd. Aug. 28, 1964 [May 30, 1963], No. 21583/63. Heading B8A. In a pneumatic conveyer system for use with knitting machines &c. in which a plurality of branched collecting funnels B are opened sequentially by solenoid operated valves A, the solenoids are energized in turn through a system of interconnected relays CC<SP>1</SP> controlled from a single switch R which is closed at predetermined intervals. The relays CC<SP>1</SP> are so connected and arranged that all the electromagnets G are simultaneously energized when the power is switched on, through relay N and direct current lines J, K and are held by a latch &c. Contacts P in the relay C<SP>1</SP> of the last machine of the series then open to deenergize the electromagnets G. Contacts a, b of each relay are arranged so that the first operation of switch R supplies alternating current to the first solenoid operated valve A only. On reopening of the switch R and reclosure of the valve A the latch of the first relay C is released and its contacts b closed so that on the next operation of the switch R the power is supplied to the second relay C only. The operation continues until the final relay C<SP>1</SP> is reached when the contacts P are again closed to re-energize all the electromagnets G to repeat the sequence.
Patent GB-759427-A (GB)
Title: Functional fluids of reduced foaming tendency
IPC: C10M171/00
Filed: 1954-07-23
Abstract: Compositions for use as functional fluids of reduced foaming tendency comprise a liquid organic tri-ester of orthophosphoric acid and a very small amount of a polyalkyl vinyl ether in which the alkyl group contains from 3 to 8 carbon atoms.  The compositions may also contain fluids such as partially chlorinated diphenyls, mixtures of diphenyls and terphenyls, dioctyl sebacate, dioctyl adipate, liquid polymeric silicones, and minor amounts of materials such as corrosion-inhibitors, anti-rusting agents, detergent additives, extreme pressure-resistive agents, and viscosity index improving agents such as polymeric higher alkyl acrylates, e.g. poly-2-ethyl hexyl acrylate, or alkylated polystyrenes.  The liquid tri-ester of ortho-phosphoric acid of which a long list is given, may be selected from the following classes: trialkyl, triaryl, alkyl diaryl, aryl dialkyl, tris(alkaryl, tris(aralkyl), alkyl bis(aralkyl), aryl bis(aralkyl), alkyl aryl alkaryl, aralkyl dialkyl, and alkaryl dialkyl orthophosphates.  Exemplified phosphoric esters are dibutyl phenyl phosphate, octyl diphenyl phosphate and tricresyl orthophosphate.  The compositions may be used as hydraulic fluids, lubricants, and in air-conditioning systems. Specifications 712,062, 740,078 and 740,107, [Group III], are referred to.ALSO:Lubrication oil compositions of reduced foaming tendency consist of, or comprise a liquid organic tri-ester of orthophosphoric acid and a very small amount of a polymeric alkyl vinyl ether in which the alkyl group contains from 3 to 8 carbon atoms.  The composition may also contain liquid such as partially chlorinated diphenyls, mixtures of diphenyls and terphenyls, dioctyl sebacate, dioctyl adipate, polymeric silicones, and minor amounts of materials such as corrosion inhibitors, anti-rusting agents and viscosity index improving agents such as polymeric higher alkyl acrylates, e.g. poly-2-ethyl hexyl acrylate, or alkylated polystyrenes.  The liquid tri-ester of ortho-phosphoric acid may be selected from the following classes, trialkyl, triaryl, alkyl diaryl, aryl dialkyl, tris (alkaryl), tris (aralkyl), alkyl bis (aralkyl) aryl bis (aralkyl), alkyl aryl alkaryl, aralkyl dialkyl and alkaryl dialkyl orthophosphates.  The Specification contains an extensive list of tri-esters. Exemplified phosphoric esters are dibutyl phenyl phosphate, octyl diphenyl phosphate and tricresyl orthophosphate.  Specifications 712,062, 740,078 and 740,107 are referred to.
Patent GB-597606-A (GB)
Title: Improvements in or relating to feed units for seriatim electrical conduit systems
IPC: H01R25/16
Filed: 1945-08-23
Abstract: 597,606. Two-part couplings. PIERCE FOUNDATION, J. B. Aug. 23, 1945, No. 21609. Convention date, Nov. 29, 1944. [Class 38 (i)] A feed section for a seriatim conduit system comprises a housing 10 having a longitudinal partition 10d forming two isolated compartments, each containing a non-circular conductor 12 having a flanged portion 12c for connection to the supply leads. The right-hand ends of the conductors 12 are attached to circular conductors 12d which are clamped in the section to the right, and the left-hand ends have plates for clamping the conductors of the section to the left. The supply leads are threaded through holes 10k in the back of the housing, to which is attached a closure plate 17 carrying a bracket 18 which in turn supports a BX cable clamp 20. A cover (not shown) on the front of the housing completes the structure. Specification 558,681 is referred to.
Patent GB-410078-A (GB)
Title: Improvements in and relating to cut-off devices with sudden closing for cutting off a stream of powdered or granular material circulated in a conduit
IPC: B65B1/18
Filed: 1932-08-03
Abstract: 410,078. Valves. DUBOIS, A., 12<bis>, Rue des Marronniers, Paris. Aug. 3, 1932, No. 21717. Void [Abridged as open to inspection under Sect. 91 of the Acts, Aug. 5, 1932]. [Class 135.] Valves employed in effecting a quick cut-off of a stream of powdered or granular material, for example in valve-bag filling and weighing machines, are of the rotary cylindrical type 3 and are turned by a weight 2 upon operation of a counterbalanced stop-arm 5 by manual or automatic means, for example weighing-means in the machine, The valve plug 3 may fit with comparative freedom in its seating, and its bearing spindle carries the weight 2, which may, however, be secured thereto by one-way means. Also secured to the bearing spindle is a member 11, on a pin 10, in which is pivoted a pawl 9 normally engaged by a roller 8 on the arm 2. On depression of the arm 5, the weight 2 falls and the valve closes, motion being stopped by the member 11 striking an abutment 14; any material which has entered the plug 3 is, by the concussion, shaken into a side conduit 16. The main conduits may be of oval cross-section. It is stated that the valve may be operated by hydraulic, pneumatic, or electrical means.
Patent GB-964843-A (GB)
Title: Improvements in or relating to typewriter fittings
IPC: B41J13/28
Filed: 1962-06-05
Abstract: 964,843. Typewriters. J. R. LANE. (R. Fondiller). June 5, 1962, No. 21718/62. Heading B6F. Paper feeding, clamping and guiding arrangements.-A typewriter having a cylindrical rotary platen 11, Fig. 1, and a paper pan 13, pivotally attached at 14 to a paper table 12, so as to be movable transversely of the axis of the platen between a paper engaging position in Fig. 1, and a paper releasing position in Fig. 2, is provided with a paper alignment member 24, Fig. 1, positioned below the paper pan and having a number of fingers 43 each carrying an abutment surface 52 extending transversely to the peripheral surface of the platen. The alignment member 24 is mounted on a rocking shaft 25 and is provided with two arcuate portions 47, 48, Figs. 1 and 2 respectively, which portions co-operate with the lower face of the paper pan so that when the alignment member is tilted by a lever 31 one or the other of the arcuate portions engages the paper pan to move it to the respective paper engaging or releasing position. To feed one or more paper sheets between the paper pan and the platen the lever 31 is rocked counter-clockwise, Fig. 2, whereby the paper pan is dropped to rest upon the arcuate portion 48, the feed rollers 61, 62 are moved away from the platen and the abutment surfaces 52 are moved upwardly through slots 65 in the paper pan to abut with lips 53 against the platen surface where they are contacted by the leading edge of the sheet or sheets. With the sheet or sheets thus aligned the lever 31 is rocked in a clockwise direction, in Fig. 1, whereby the pan is raised by the arcuate portion 47 and feed rollers 61 engage the sheet or sheets, which may now be advanced by rotation of the platen. In another embodiment (in Fig. 6, not shown) the arcuate portions may be dispensed with and the fingers carrying the abutment surfaces mounted directly on the shaft 25. In still another embodiment (not shown) the fingers and abutment surfaces may be replaced by a straight edge, movable into the path of travel of the paper. Erasing and correction tables.-To facilitate erasures or writing on the paper a guide member 90 (Figs. 8 and 9, not shown) is provided, the member having a ledge 91 serving as a backing member for the paper when the latter has passed around and over the platen. Paper and matrix carriages and supports.- A carriage base 21, Fig. 1, is mounted by ball bearings 22 on carriage rails 23 rigid with the typewriter base.
Patent GB-1269094-A (GB)
Title: Improvements in fluorine containing amines
IPC: D06M15/277
Filed: 1969-04-29
Abstract: 1,269,094. Polyfluoroalkylamines. UGINE KUHLMANN. 29 April, 1969 [29 April, 1968], No. 21840/69. Addition to 1,210,842. Heading C2C. Novel compounds of the formulae are prepared, according to examples, by reacting an appropriate polyfluoroalkyl halide with NH 3 , methylamine, n-butylamine, diethylamine, N- methylaniline, pyrrolidine, N-methylcyclohexylamine or cyclohexylamine, as appropriate. The first two examples also include C 6 F 13 (C 2 H 4 ) 2 NH 2  and C 8 F 17 (C 2 H 4 ) 2 NH 2 , respectively.
Patent GB-922439-A (GB)
Title: Ironing table
Inventor: COLTEN DESIDER
IPC: D06F81/04
Filed: 1961-06-16
Abstract: 922,439. Ironing-boards. METAL PRODUCTS (TREFOREST) Ltd. Jan. 25, 1962 [June 16, 1961], No. 21841/61. Class 52 (3). An ironing-board comprises a table 1 mounted on crossed legs intersecting and pivoted at 5, the upper end of leg 4 being pivoted to a lug 2 beneath the table, and the upper end of leg 6 having a pin 16 slidable in the inclined guide 14, along which it may be engaged in a number of positions by a ratchet 17 releasable by handoperated bar 19, such that the table is horizontal in all positions. The legs are closed by moving the pivot 10 of the hinge joining parts 7 and 8 of leg 6 towards the lug 2.
Patent GB-571123-A (GB)
Title: Production of an adsorbent and catalyst material
IPC: B01J20/30
Filed: 1943-12-30
Abstract: 571,123. Alumina-silica gels ; catalysts. SPENCE & SONS, Ltd., P. DAVIES, W. C., and HALL, C. E. Dec. 30, 1943. No. 21845. [Classes 1 (i), 1 (ii), and 1 (iii)] Solutions of alkali silicate and an aluminium compound are mixed with if necessary an addition of alkali to give a neutral or slightly acid mixture; the precipitate is washed, finely ground while wet, dried, graded, and activated by heating it. Specification 541,519 is referred to.
Patent GB-1304597-A (GB)
IPC: E05D3/06
Filed: 1970-05-06
Abstract: 1304597 Furniture hinge J BLUM 6 May 1970 [7 May 1969] 21953/70 Heading E2F In a furniture hinge of the type comprising a hinge casing and a base element connected through two link arms, the base element has the form of a rectangular plate provided with a central threaded bore and two threadless bores, the centres of the bores lying in one line along the longitudinal axis of the plate, and the plate being symmetrical about the centre bore. In the figure, the hinge comprises two link arms 1, 2 and four link pins 3, 4, 5, 6, two (3, 4) of which are arranged on hinge casing 7 and the other two are arranged on bracket 9 embracing base element 12, which has a central threaded bore 13 and two threadless bores 14, 15. The bracket 9 is attached to the base element 12 via fastening screw 2 and adjustable screw 23.
Patent GB-161888-A (GB)
Title: Buttons
IPC: A44B1/42
Filed: 1920-07-23
Abstract: 161,888. Kolken, J. van. July 23, 1920. Buttons.-A button comprises a body 11 having a central aperture 12 and lateral recesses or holes 14. Fig. 5 shows a metal button secured by an inverted U-shaped resilient member 17 which is forced into the aperture 12 carrying the fabric with it, the member 17 then expanding so that outwardly-directed teeth 18 thereon extend through the fabric into the holes 14 in downwardly extending lugs. The button may be removed so as to be available for re-use when the fabric is worn out, by cutting the fabric and pushing the fastener 17 through the aperture 12. In the case of a pearl, bone, or composition button, Fig. 3, lateral recesses 14 are formed in the walls of the aperture 12. In another form, Fig. 6, the aperture 12 does not extend through the button; in this case, the button is not removable.
Patent GB-281764-A (GB)
Title: Improvements in lubricator devices or automatic grease cups
IPC: F16N11/10
Filed: 1926-09-08
Abstract: 281,764. Smith, A. N. D., and Menno Compressed Air Grease Cup Co., Ltd. Sept. 8, 1926. Force-fee'd lubricators.-A lubricator comprises a cup a, Fig. 1, provided with a valved nipple d for the application of a. grease gun, a cover h providing an air-tight closure for the cup, and a piston m which is adapted, during charging of the'cup, to compress air in the cover,- the compressed air serving, after charging, to effect the delivery of the grease through an outlet b. The piston is made hollow so as to increase the air capacity. The cover h is secured to the cup by a screw clamp k and may be made wholly or partially of glass, so that the position of the piston may be seen; graduations n may be provided in the cover. As shown in Fig. 3, the cup is formed on a cavity w in the end of a shackle bolt v and is closed by a cover z from which a tube 1 passes through an annular piston y. The charging nipple d is carried by the cover z in alignment with the tube 1 or is carried on a screw cap 3. In the latter case, the base of the nipple bears on the cover z. In the form shown in Fig. 4, the cup 5, within which is arranged the hollow piston 7, is arranged within the cover 6, the annular space 13 between the cover and the cup providing an air space of considerable capacity. Grease is delivered centrally beneath the piston from the charging nipple d through a duct 12. As shown in Fig. 5, the cover is in the form of a hollow plunger 20 slidable in the cup 14, the piston 23 being arranged in the plunger. Ratchet teeth 24 on the plunger are adapted to be engaged by a spring pawl 25. During charging, the pawl is released from the teeth, so that the plunger is moved outwards while air is being compressed therein. During the subsequent delivery of grease, the plunger may be forced inwardly step by step to re-compress the air. In the form shown in Fig. 6. the charging nipple d is arranged in the upper closed end of a cup 27, the piston 32 being arranged within a, member 26 arranged within and spaced from the cup 27. The member 26 has a closed upper end and notches 33 at its lower end, the notches allowing access of grease from the charging nipple to the underside of the piston. The charging nipples of a number of cups may be connected to a common supply duct.