baber/WOPTO huggingface dataset:
Patent GB-619690-A (GB)
Title: Improvements in or relating to blades and guide-blades for turbines, rotary compressors and the like
IPC: F01D5/14
Filed: 1946-07-03
Abstract: 619.690. Making compressor blades &c. CORBITT, R. W., and ROLLS-ROYCE, Ltd. July 3, 1946, No. 19926. Addition to 568,575. [Classes 83 (ii) and 83 (iii)] [Also in Group XXVI] The method of forming blades for turbines, rotary compressors &c. wherein the blade surfaces are generated by cutters arranged to traverse a conical surface of which the apex is beyond the blade tip and the axis inclined to the radial axis of the blade at such an angle that the generating line of the cone can occupy a position parallel with the blade axis, is modified in that the cutters are traversed over the surface of a hyperboloid with its axis inclined in a like manner and its part of smallest radius beyond the blade tips. As shown in Fig. 1, the concave surface of the blade 12 is generated by cutters traversing the surface of a hyperboloid 16 having its axis 17 inclined to the radial axis of the blade and in the plane generated by the rotation of the trailing edges of the blades, the part 18 of the hyperboloid having the smallest radius being located beyond the tip and equal to about half the axial length of the blade. The cutters 31-34, Fig. 3, are mounted in a tool-head rotatable about the axis 37 of the hyperboloid and are advanced along lines parallel to generating lines of a cone 36 co-axial with the hyperboloid and offset, by an amount a, from the axis of the cone. The cutters are slidably mounted in guideways 35 and are advanced by any suitable gearing, or hydraulically. In generating the convex faces, the hyperboloid has a smaller minimum radius whereby the thickness of the blade diminishes from the root to the tip and towards one or both edges. Tapering of the blade in both radial and axial directions may be produced by using hyperboloids for generating the front and back faces which are asymptotic to cones having different cone angles and generating lines diverging towards the root of the blade.
Patent GB-1037622-A (GB)
Title: Improvements in hydraulic motors
IPC: F03C1/04
Filed: 1963-05-20
Abstract: 1,037,622. Hydraulic reciprocating motors. KIRKSTALL. FORGE ENGINEERING Ltd. and R. H. WILSON. May 4, 1964 [May 20, 1963], No. 19998/63. Heading F1A. A radial cylinder motor has three cylinders 10 only, and pistons 13 engaging a two-lobed cam shaped such that the output shaft 11 is driven at substantially constant torque when the motor is supplied with a constant flow of motive liquid. In the embodiment of Fig. 2, pistons 13 engage cam 12 through rollers 14 on levers 15 pivoted at 27 to levers 16 pivoted at 28 to the motor housing. A distributer pintle valve 21, Fig. 1 (not shown), is coupled to shaft 11. In the embodiment of Fig. 6 (not shown) cam-engaging rollers 14 are mounted on supports 35 having rollers 36 running on guides 37 fixed to the motor housing.
Patent GB-850985-A (GB)
Title: Improvements in microspace data storage
IPC: G11B9/08
Filed: 1958-01-24
Abstract: 850,985. Cathode-ray storage tubes; heavyion beam tubes. GENERAL ELECTRIC CO. June 24, 1958 [June 27, 1957], No. 20190/58. Class 39(1). Information data is stored by using a charged particle beam which is focused to a spot diameter below the resolution of light opticaldevices preferably below 300 A units and effecting the physical and chemical state of discrete areas of the storage medium by the primary radiation effects of the beam. The storage medium may utilize a c-domain ferroelectric material by orienting all of the electric dipoles thereof in a single direction and directing the beam in a predetermined sequence to reverse the orientation direction in discrete areas of the material whereby a data representing matrix is formed on the medium. Alternatively a semi-conducting body may be used as the storage medium on which are produced discrete areas of lattice dislocation by projecting a beam of focused ions thereon and etching the medium to enlarge the dislocation. In another embodiment a porous insulating material is used as the storage medium and directly captures charged particles from the focused beam. In a further embodiment of beam of positive metallic ions is focussed on the storage medium to deposit metal on discrete areas thereof. Alternatively a particle beam may be focused on discrete areas of the medium in the presence of vaporized hydrocarbons to polymerize and fix the hydrocarbon on the surface thereof. In another embodiment the focused particle beam produces discrete exposed areas of silver in a photographic emulsion. As shown in Fig. 1, an electron beam is rendered parallel by lens 10, subjected to scanning deflections at 11 and focused at a small spot diameter by an electrostatic lens 14 on to the storage medium 18 which is provided with a conducting backing 17. For binary operation, the beam is blanked by electrode 4 to store " O " and unblanked to store " I " and storage is effected with the backing 17 connected to a negative potential by switch 21. Read-out is effected by opening the switch 21, closing the switch 22, scanning the area and amplifying the read-out signals at 23. In another embodiment the final focusing lens system together with the storage medium backing plate act as an electron mirror so that the beams does not impinge upon the target and read-out is effected by passing the returning read-out beam into an electron multiplier. In embodiments wherein the storage medium is subjected to physical change electron microscopes may be used for read-out.
Patent GB-917314-A (GB)
Title: Improvements relating to lifting means for lifting working scaffolding and shuttering as used in the construction of poured concrete walls, and like structures
IPC: E04G11/24
Filed: 1959-06-12
Abstract: 917,314. Shuttering for casting walls. SIEMENS-BAUUNION G.m.b.H. June 12, 1959 [June 13, 1958; May 12, 1959], No. 20200/59. Class 20 (2). [Also in Group XXX] Shuttering for walls with scaffolding for workmen is raised as casting proceeds on rods K in the wall B being cast, by means of a pair of clamping devices W, V which grip the rod when moved downwardly and release it when moved upwardly and which are connected together by double-acting jacks X which raise the clamps W, V alternately by outward or inward movement of the jack piston rods respectively, the jacks being arranged symmetrically with respect to the rod K, e.g. one on each side and are pivoted to the clamping devices. Each clamp comprises a housing 6, Fig. 4, in which are three rings 20 surrounding the rod K each being forced upwardly against a stop screw 25 on one side by a spring 22 so that the ring tilts and engages one side of the rod. The rings may be released by the inclined ends of bolts 1 operated by nuts 28. The shuttering P and five working platforms R, N, O, S, T are supported by a framework G on a beam F secured to the clamp V. Each rod K rests on a brick M and extends through a sheath H connected to the beam F and moving up with the shuttering to leave clearance for the rod K to be removed subsequently.
Patent GB-1349425-A (GB)
Title: Winding bobbin holder for a textile machine
IPC: B65H54/52
Filed: 1972-05-02
Abstract: 1349425 Bobbin holder ELITEX-ZAVODY TEXTILNIHO STROJIRENSTVI GENERALNI REDITELSTVI 2 May 1972 [4 June 1971] 20259/72 Heading D1J A winding bobbin holder comprises arms 3 pivoted about pivot 6 by compression spring 8, acting on arm 7 rigid with arms 3, to press arm-mounted bobbin 4 against drive roller 3. During package winding arms 3 are pivoted upwards as the package enlarges, spring 8 is compressed, and the housing 10, 11 telescopes and pivots about pivot 10'. The turning movement imparted to arms 3 by the spring, and hence the pressure between the package and roller 5, is maintained substantially constant because as the spring force increases with spring compression, the movement arm between the forces line of action and pivot 6 is reduced. When the package is fully wound the line of action passes through pivot 6. Further winding pivots the spring and allows the spring to expand to lift the package from roller 5.
Patent GB-1060574-A (GB)
Title: Electric thermal storage space heaters
Inventor: DAVIDSON FREDERICK
IPC: F24H7/04
Filed: 1964-05-15
Abstract: 1,060,574. Thermal storage space heaters. REVO ELECTRIC CO. Ltd. Aug. 16, 1965 [May 15, 1964], No. 20272/64. Heading F4U. A thermal storage space heater 10 having electric elements 12 contained in storage blocks 11, comprises U-shaped heating ducts 14 interconnecting a baffled inlet chamber 15 with a surrounding outlet mixing chamber 16, having a plurality of outlet grilles 19 which may alternatively be connected to ducts or sealed off, on three of its sides. A fan on the fourth side, blows air into the inlet chamber 15 and through the ducts 14, or through a by-pass gap in the common wall between the chambers, into the outlet mixing chamber 16. The cold air flow through the by-pass is thermostatically controlled by a hinged flap 25 under the influence of adjustable bi-metal strips 29 in the outlet mixing chamber 16.
Patent GB-942500-A (GB)
Title: Improvements relating to electrolyte compositions for use in electrochemical batteries
IPC: H01M10/50
Filed: 1961-06-05
Abstract: 942,500. Battery electrolytes. YARDNEY INTERNATIONAL CORPORATION. June 5, 1961 [June 10, 1960], No. 20281/61. Heading H1B. A deferred action battery utilizes an electrolyte which will react exothermically with at least one electrode, thus producing rapid heating of the battery. The electrolyte consists of an alkali metal hydroxide and an additive which is formaldehyde, acetaldehyde propionaldehyde or butyraldehyde with or without methyl alcohol, ethyl alcohol, propyl alcohol, butyl alcohol or isobutyl alcohol. Electrode couples exemplified are Ag/Zn, Ag/Pb, Ag/Cu, Ag/Cd.
Patent GB-1407766-A (GB)
Title: Power unit containing an internal combustion engine and a  hydrostatic transmission
IPC: B60K5/02
Filed: 1973-04-30
Abstract: 1407766 I C engine driving gear KLOCKNER-HUMBOLDT-DEUTZ AG 30 April 1973 [25 May 1972] 20414/73 Heading F1B [Also in Divisions B7 and F2] A multi-cylinder in-line engine 1 is so orientated in use that the plane containing the axes of the cylinders 4 and the crank-shaft 6 is inclined to define an acute angle, e.g. 20 to 40 degrees, with a horizontal plane. A transmission including a variable ratio hydrostatic transmission is driven by the engine 1 and has an output shaft 43 parallel to but horizontally offset from the hydrostatic pump drive-shaft 21 which is coaxial with the crankshaft 6. The hydrostatic motor output shaft 31 delivers power in the opposite direction to input to the hydrostatic pump 20 and the axis of the output shaft 43 extends beneath the engine cylinder heads 8, Fig. 2. A two-speed gear drive 33 between the output shafts 31 and 43 includes a friction brake 54 associated with the lay-shaft 41. An output shaft 47 is driven with the shaft 43 by engagement of a clutch 49, 50. Power take-off shafts 62 and 70 are driven through a two-speed gear drive 56 from a friction clutch 18 associated with the crank-shaft flywheel 17. The gear drives 33 and 56 are mounted in a casing 26 providing bearings for the transmission shafts and a reservoir for the hydrostatic transmission fluid. A cooler (75), Fig. 3 (not shown), for the transmission fluid is mounted on a duct 14, Fig. 2, directing cooling air from the belt-driven fan 12 to the cylinders 4. The shaft 43 may drive a ship's propeller or a differential 92, Fig. 5, of a tractor rear axle 80. The output shaft 47 drives the differential 91 of the tractor front axle 79 and the power take-off shafts 62 and 70 are connected to stub shafts 93 and 94 mounted in bearings in the axles 79 and 80. The engine 1 and the casing 26 form a unit which is mounted on the tractor frame 88, 90 by rubber pads 16 mounted on brackets 15 and 77 on the engine and casing.
Patent GB-221494-A (GB)
Title: Improvements in foundry mould cleaning, heating and lampblacking devices
IPC: B22C23/02
Filed: 1924-08-29
Abstract: 221,494. Holley, E., (Assignee of Anderson, A.). Sept. 7, 1923, [Convention date]. B u r n e r s, mounting, arrangements, and applications of; gas supply. - A burner for coating a mould with lampblack and which may be mounted as described in Specification 214,953, [Class 83 (i), Casting &c. metals], is provided with a separate set of passages serving for heating, cooling, and cleaning the moulds. The gas for blacking, preferably acetylene, is supplied at C<2> to a passage B leading to series of outlets G provided with nozzles. The cavity A<2> is supplied at D<2> from a pipe provided with a branch so that either town gas or compressed air may be supplied as desired. The cavity is provided with nozzled outlets E and with a drain plug J.
Patent GB-795662-A (GB)
Title: Improvements in or relating to gas turbine engines
Inventor: DAYER NORMAN FRANCIS
IPC: F02K1/30
Filed: 1954-07-13
Abstract: 795,662. Gas turbine plant. BRISTOL AERO-ENGINES, Ltd. Oct. 10, 1955 [July 13, 1954], No. 20501/54. Class 110 (3). In a gas turbine plant in which fuel is burnt in a combustion chamber in compressed air supplied by a compressor system and the combustion products are passed through a turbine system into exhaust ducting discharging to atmosphere which creates a back pressure on the turbine, a port or a series of ports opening from the exhaust ducting downstream of the turbine are connected by a duct to a second port or series of ports opening into the exhaust ducting downstream of the first port or series of ports through which exhaust gas can flow from the first port or ports to the second port or ports so as to restrict the flow of the exhaust gas stream without changing its mean direction of flow and means are provided to control the flow through the duct. A gas turbine engine comprises an axial flow compressor 2 feeding air to a combustion chamber 4 supplying combustion products to a turbine 7 driving the compressor. The turbine exhaust passes through ducting 9 having a propulsion nozzle 11. Additional fuel is burnt in the ducting 9 by means of a burner 12 and flame stabilizing baffle 13. To vary the effective area of the propulsion nozzle 11 and thus to vary the back pressure on the turbine, exhaust gas is bled from the ducting 9 through an annular port or series of ports 14, passed through an annular duct 15 and then returned to the exhaust ducting through port or series of ports 16. The gas ejected through the port or ports 16 has a component of velocity in the upstream direction. To vary the flow in the duct 15, the rear part 22 of the outer wall of the passage is made slidable axially on the outer wall of the ducting so that the port or ports 16 may be opened or closed as desired. In a modification, Fig. 3, the flow of gas through the duct 15 is controlled by air bled from the compressor 2 which is passed through a control valve to an annular chamber 32 surrounding the ducting 9. From the chamber 32 the air passes through ports 33 into the ducting 9 and thus controls the flow of exhaust gas entering the passage 15. The compressed air is heated in the chamber 32 by heat exchange with the exhaust gases. The invention is applicable to discharge nozzles of the convergent-divergent type. Reference has been directed by the Comptroller to Specifications 745,630 and 759,659.
Patent GB-493507-A (GB)
Title: Improvements in fabric shearing machines
IPC: D06C13/02
Filed: 1938-07-11
Abstract: 493,507. Finishing fabrics. GESSNER AKT.-GES., E. July 11, 1938, No. 20510. Convention date, July 19, 1937. [Class 42 (i)] Shearing.-Feelers 4, 5 in front of and behind the cutter c are operated by a seam a in the fabric b to reduce the speed of the fabric while the seam is passing the cutter c and restore the speed to normal after the seam has passed. As shown, the feelers control the motor 2 through relays, and at the same time operate an acoustic or other signal 7. The cutter 3 may be lifted by hand or automatically during the passing of a seam.
Patent GB-629095-A (GB)
Title: Improvements in or relating to the production of synthetic resinous material
IPC: C08L61/28
Filed: 1946-07-10
Abstract: A process of producing a resinous material comprises mixing a colloidal solution of a cationic melamine-aldehyde resin prepared by the process of Specification 623,355 with an aqueous dispersion of a thermoplastic resin, whereby the dispersion is flocculated and the melamine-aldehyde resin coprecipitated with the thermoplastic resin. Thermoplastic resins specified are polystyrene, polymers of mono-or di-methyl or chloro-styrenes, polymers of methyl, ethyl, propyl, n-butyl, isobutyl, tertiary butyl, cyclohexyl, and octyl acrylates or methacrylates, polyvinyl acetal, vinyl chloride and acetate polymers or copolymers, vinyl and vinylidene chloride polymers; copolymers of styrene with vinyl chloride, acrylic acid esters, or acrylonitrile. Other resins are phenolacetaldehyde or -furfural resins and similar resins from cresol and alkyl phenols; coumarone polyindene, and vinyl acetylene resins.  Suitable anionic dispersing agents are soaps such as potassium oleate or naphthenate, triethanolamine oleate; sodium lauryl sulphate and sulphates of higher secondary alcohols; sodium benzene sulphonate, sodium isopropyl naphthalene sulphate; esters of sodium sulphoacetate; dialkyl sulphosuccinate, di-sodium monoalkyl sulphosuccinamates, and sulphonated lignin. Non-ionic dispersing agents suitable are polyethylene glycol-substituted succinic acid esters, mannitan and sorbitan esters of palmitic, stearic and oleic acids and their ethylene oxide condensation products and arylalkyl polyether alcohols. Soluble resins such as coumarone and polyindene may be emulsified as their solutions.  An emulsion of polystyrene is prepared by adding styrene to a hot solution of a higher alkyl sulphate and a hydrogen peroxide catalyst.  In examples: (1) and (2) emulsions of polystyrene are flocculated on being added to a solution of cationic melamine-formaldehyde colloid; the product is filtered off, dried and moulded, ammonia being added before filtration in (2). The products are suitable as adhesives and coatings.
Patent GB-1033487-A (GB)
Title: Improvements in fluid pressure control valves
Inventor: WILLOUGHBY JOHN ALAN
IPC: G05D16/10
Filed: 1964-05-19
Abstract: 1,033,487. Valves. ROBERTS (1960) Ltd., S. F. May 6, 1965 [May 19, 1964], No. 20611/64. Heading F2V. A pressure-reducing valve for controlling the pressure of fluid to, e.g., fire extinguishers or breathing apparatus, comprises an inlet 28 which communicates with an outlet 10 via passages 30, 31 provided in a plunger 13, the plunger having a closure surface 17 co-operating with a valve seat 12 and piston-like ends 13, 15 the upper of which abuts a spring seat 19 and the lower of which is acted upon by pressure at the reduced value in a chamber 9. The plunger is pressure-balanced so that the only effective forces thereon are the biasing force from the spring 20 and the force exerted on the piston in chamber 9. A threaded stem 23 having a handle 24 and providing an adjustable stop passes through an adjustable spring retainer 21, a spring 26 serving to prevent unwanted movement of the stem. In a modification, bores 30, 31 are replaced by a bore extending through the wall of bore 3 the outlet from which also communicates with chamber 9. In this latter embodiment, the inlet and outlet passages may be reversed, although the lower pressure still communicates with chamber 9. The spring loading may be replaced by fluid pressure loading.
Patent GB-1378478-A (GB)
Title: Method of forming a carbide layer
IPC: B23P15/28
Filed: 1973-05-01
Abstract: 1378478 Forming carbide layers TOYOTA CHUO KENKYUSHO KK 1 May 1973 [12 April 1973] 20629/73 Heading C7F Fe, ferrous alloys or cemented carbide substrates containing at least 0À05%C are coated with a group Va carbide by immersion in a fused bath containing a group Va chloride and boric acid and/or a borate. The chlorides are VCl 3 , VCl 4 , NbCl 3  and TaCl 5  in an amount of 1-40 wt per cent. The borates are Na 2 B 4 O 7  or K2B407 and an alkali metal chloride or fluoride may be included in the melt. The bath temperature may be 800-1100‹C and immersion time 10 minutes to 30 hours. The bath container may be graphite or steel and the process is carried out in air or an inert gas.
Patent GB-642497-A (GB)
Title: Improvements in and relating to fastener devices
IPC: F16B5/10
Filed: 1948-08-05
Abstract: 642,497. Stud and socket fastenings. UNITED-CARR FASTENER CORPORATION. Aug. 5, 1948, No. 20726. Convention date, Aug. 8, 1947. [Class 44] In a stud and socket fastening for securing apertured sheets together the socket comprises a cage in which is shiftably retained a stud engaging unit consisting of an elongated arched plate formed with an aperture and slots to pass the arms of the stud. Figs. 5 and 4 show the fastening in sections at right angles and Fig. 5 shows the socket plate 16 and a separate spring stud ejecting plate 20. The cage 11 is formed by two upstanding walls 13 with overturned flanges 14 mounted on a base 12 secured by rivets 15 to one of the parts to be fastened. The stud 5 is adapted to pass through an aperture 12a in the base 12 and another 17 in the plate 16, the arms 8 passing through slots 18. When the stud is turned the arms ride over the inclined cam surface 19 of the plate and rest against stops 25 bent up from the plate. The plate may be made of springy material to provide a resilient connection, or of unyielding material to provide a rigid connection. Located on the stops 25 is a spring plate 20 resting under the flanges 14 and adapted to be deflected by insertion of the stud. This plate ejects the stud when released by downward pressure on the arms 8.
Patent GB-600188-A (GB)
Title: Impulse modulating arrangements for radio frequency oscillators
IPC: H03K3/78
Filed: 1943-12-10
Abstract: 600,188. Valve modulating circuits. STANDARD TELEPHONES & CABLES, Ltd. Dec. 10, 1943, No. 20749. Convention date, Jan. 12, 1942. [Class 40 (v)] A circuit for transmitting radio-frequency pulses and for matching the impedance of the pulse source to that of the wave generator makes use of a variable impedance element in the cathode circuit of the wave generator. The pulse source may comprise a pair of parallelconnected valves 10, 11 having coupled coils L1, L2 in their grid and plate circuits and a timing-circuit 12, 13, 14 in its cathode lead. High-voltage pulses created across the coil L2 are synchronized by control voltages applied through condenser 17 to the grids, and are fed to the anode circuit of the push-pull connected carrier generators 19, 20. The anode; grid and cathode circuits of this generator are tuned by balanced line structures 22, 23, 24 and a grid leak 28 of relatively low resistance is provided. The apparent impedance of the generator is adjusted by variation of a resistance or impedance 29 in the cathode circuit of both tubes 19, 20 until the generator impedance matches that of the impulse source, the correct adjustment giving maximum output from the carrier generator. Specification 590,480 is referred to.
Patent GB-1397945-A (GB)
Title: Process for the manufacture of inorganic acid addition salts of urea
IPC: A23K50/15
Filed: 1972-05-04
Abstract: 1397945 Salts of urea with inorganic acids IMPERIAL CHEMICAL INDUSTRIES Ltd 18 April 1973 [4 May 1972] 20848/72 Heading C2C Substantially dry crystals of addition compounds of urea with inorganic acids are made by introducing in substantially equimolar amounts a concentrated urea solution or melt at 110- 132 C. and a concentrated inorganic acid into one end of a drum fitted with longitudinal shaft and paddles, and agitating and propelling the mixture towards an outlet at the other end, while passing a heated gas through the drum. The urea solution is preferably at least 80% and the shell of the drum is preferably maintained by a heated jacket at a temperature not exceeding 100 C. The process is described with reference to phosphoric acid (50-70% P 2 O 5 ); possible use with sulphuric acid is mentioned.