baber/WOPTO huggingface dataset:
Patent GB-839344-A (GB)
Title: Improvements in or relating to gas-turbine engines
Inventor: RUBBRA ARTHUR ALEXANDER
IPC: F02C7/18
Filed: 1956-11-23
Abstract: 839,344. Gas turbine plant; axial flow compressors. ROLLS-ROYCE Ltd. Nov. 18, 1957 [Nov. 23, 1956], No. 35992/56. Classes 110 (1) and 110 (3). In a gas turbine engine comprising a compressor having a rotor, the external surafce of which forms a boundary of a working fluid passage mounted on a shaft, radial ducts are provided to connect inlets on the external surface to ports in the shaft and movable valve means rotating with the shaft are arranged to co-operate with the ports so as to control the flow of air into the shaft. A gas turbine engine comprising an axial flow compressor 10, Fig. 1, supplying air to combustion equipment 11 feeding a turbine 12 driving the compressor, has the compressor mounted on a hollow shaft 14 supported in bearings 15a, 15b. Air tapped from an intermediate stage of the compressor 10 is delivered through duct structure 19 to ports 20 in the compressor shaft 14. This air passes through the shafts 14, 16 to cool various parts of the engine. A valve 25 is provided to control the flow of tapped air e.g. to reduce the amount of tapped air at low engine speeds. The valve 25, Fig. 2, comprises a piston 26 slidable within the shaft 14 to cover and uncover the ports 20. The piston valve is operated by the armature 27 of a solenoid 28 energized through slip rings 29 and brushes 30. When the solenoid is de-energized the piston valve 26 is held by a spring 31 against a shoulder 14a. In a modification, Fig. 3 (not shown), the valve 26 is operated by a flyball governor located inside the shaft 14. In another modification, Fig. 4 (not shown), the piston is operated by a ram subject to a spring loading and a fluid pressure. The valve 26 may be operated automatically or manually and may be controlled either to be closed gradually as the speed falls into a predetermined range of speeds or to be closed at a particular value of the rotational speed. The skirt of the piston 26 may have parts cut away so that some of the ports 20 are covered before the remainder. Specification 622,181 is referred to.
Patent GB-383100-A (GB)
Title: Improvements in illumination devices for microscopes
IPC: G02B21/08
Filed: 1931-12-31
Abstract: 383,100. Microscopes. ZEISS, C. [Firm of], Carl-Zeiss-Strasse, Jena, Germany. Dec. 31, 1931, No. 36049. Convention date, Jan. 5. [Class 97 (i).] An illumination device for microscopes having a displaceable stage above the objective, consists of a condenser system surrounding the objective and mounted independently of the microscope tube in that part of the stage which does not partake of the displacements of the object. The stage rests on a support 1 fixed to the microscope stand and comprises a plate 2 rotatably mounted on the support and bearing a carrier 3 for the condenser 14. The plate 2 is provided with a guide 4 in which slides 5, 6 can be moved by a screw 10, these slides in turn acting as guides for slidable members 7, 8 on the plate 9 by which the object carrier 12 is supported. The plate 9 can be displaced along the guides 5, 6 by a screw (not shown) at right-angles to the screw 10. The condenser comprises a glass block 15 having a paraboloidal reflecting surface 16 and receiving light from an inclined annular mirror 20 within the microscope tube 18.
Patent GB-176180-A (GB)
Title: Improvements in or relating to athletic boots
IPC: A43B5/02
Filed: 1920-12-23
Abstract: 176,180. Smith, E. H., and Busby, E. A., (trading as Busby & Co., E. A.). Dec. 23, 1920. Athletic boots.-A football boot is provided with an external instep pad having a central division the adjacent edges of which are eyeleted to the corresponding edges of the opening in the front of the upper and are thus adapted to be drawn together by the lacing. As shown, the two parts of the pad are convex and are formed of rubber or like material E, secured in position by a covering piece F of leather. Each piece F is secured to the upper by stitching J and has integral extensions G, H, the former constituting an oblique waist-strap which is lasted in between the upper and the sole, and the latter an eyelet-strip, extending from the toe-cap to the corresponding edge of the opening in the upper. Reference has been directed by the Comptroller to Specifications 18195/92 and 429/00.
Patent GB-921228-A (GB)
Title: Method of manufacturing footwear
IPC: B62M25/00
Filed: 1959-10-26
Abstract: 921,228. Shoes &c. SVIT, NARODNI PODNIK. Oct. 26, 1959 [Nov. 20, 1958], No. 36117/59. Class 17 (2). In a method for the production of shoes, an upper 1, previously joined to an insole 2 and a foxing 7, is pulled over a last to a position in which the jointing seam is placed on the edge of the last which is chamfered, an insulating piece 6 is secured to the partly made shoe by an overlapping portion of the foxing 7, and a decorative welt 8 and a bottom filler 14 are subsequently applied before the sole 10 is attached to the shoe e.g. by vulcanization. As shown, the sole 10, which may be made of foam rubber, may be provided with recesses 13 and has at its peripheral edge a decorative cover 9 or an embossed pattern. A removable sock 19 is provided. The last may be of wood or of a synthetic material resistant to the vulcanizing temperature.
Patent GB-821946-A (GB)
Title: Improvements in circuits employing bi-stable ferromagnetic elements
IPC: H03K3/45
Filed: 1955-12-16
Abstract: 821,946. Circuits employing bi-stable magnetic elements. OLIVETTI CORPORATION OF AMERICA. Dec. 16, 1955 [Dec. 17, 1954], No. 36225/55. Class 40 (9). [Also in Group XIX] A circuit for use in a binary counter produces one or other of two outputs according to the presence or absence of an input signal and comprises two saturable magnetic cores 10 and 11 with set windings 12 and 22 connected in series, advance windings 13 and 23 connected in series, separate output windings 14 and 24, and a reset winding 34 on one core; each set, reset, and advance winding, producing a flux in its associated core in the direction indicated by an arrow in Fig. 1. The circuit is pulsed by successive reset, set, and advance pulses applied to terminals 37, 16 and 17, respectively. If a set pulse follows a reset pulse, core 10 will saturate in an anti-clockwise direction and core 11 will be saturated in a clockwise direction. A subsequent advance pulse transfers core 10 from one saturated state to the other while core 11 does not change its state. An output pulse is therefore developed across winding 14 and no pulse is developed across winding 24. If no set pulse follows a reset pulse core 10 will remain in a clockwise saturated state while core 11 will be in an anti-clockwise saturated state so that a subsequent advance pulse does not alter the state of core 10 but shifts core 11 from one saturated state to another. An output pulse is therefore produced across winding 24, but no pulse is produced across winding 14. The output pulses across windings 14 and 24 therefore positively represent the presence or absence of a set pulse between the reset and advance pulses, an output across one winding, 14 or 24, being accompanied by its binary complement across the other winding. Fig. 4 shows the application of three circuits to form a binary adder in which the circuits 90, 91 and 92 produce the binary digits a, b and their carry-in digit c, and the complements a<1>, b<1>, c<1>, respectively. Digit a is determined by the presence or absence of a set pulse on terminal 93, and digit b by the presence or absence of a set pulse on terminal 94. Reset and advance windings are connected in series between terminals 37 and 17, respectively, and earth. The sum of the outputs is determined by AND gates 60, 61, 62 and 63 connected to an output 76 by means of OR gates comprising rectifiers 64. Carry-out is determined by AND gates 71, 72 and 73 connected to an output 77 by means of OR gates 74. All the gates are opened by pulses P applied over rectifiers 80, 81, to synchronize the gates with the advance pulses. Carry-out is applied as an input to terminal 95 over a delay 100, so that the signal coincides with a set pulse applied to terminals 93 and 94.
Patent GB-916423-A (GB)
Title: Improvements relating to semiconductor devices
Inventor: SCOTT WILLIAM JOSEPH
IPC: H01L21/285
Filed: 1958-11-11
Abstract: 916,423. Semi-conductor devices. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Nov. 11, 1959 [Nov. 11, 1958], No. 36242/58. Class 37. A semi-conductor device has a body of semiconductor material 11, Figs. 2, 3 (Complete Specification), secured to a body of insulating material 12 and a conductive layer 15 extending over the insulating material and overlapping the interface 13 to establish a minute limited area contact with the semi-conductor material. In the junction type device shown the main body 11 of semi-conductor material may be P-type silicon, the top layer of the body above the PN junction 18 of N-type silicon to which ohmic contact is established by the use of a gold antimony alloy or, according to the Provisional Specification, a phosphor bronze alloy; with N-type material for the main body aluminium or gold boron alloy is used for the ohmic contact. Most of the top layer above junction 18 is removed by etching and etching may be continued to remove the material between the line 19 and the insulator 12. Ohmic contact 17 is a gold gallium alloy. In a point contact device, e.g. a diode, Fig. 1 (Provisional Specification), in the form of a wafer of semi-conductor material 1, e.g. germanium, and glass 2, the tapering conductive layer 4 is of titanium. Ohmic contact with the layer 4 is made by a deposit 5 of gold. The conductive layer 4 is caused to weld to the body of semi-conductor material by the passage of a current pulse. In Fig. 3 (Provisional) a triode is shown with two contact layers 4. The insulating material may be glass, fused or sintered directly to the preoxidized surface of the semi-conductor body or a layer of insulating material or its oxide may be formed in situ on the semi-conductor body. Powdered glass may be fused to the semiconductor body by heat.
Patent GB-813393-A (GB)
Title: Improvements in or relating to agricultural balers
Inventor: BAMFORD HENRY VINCENT
IPC: A01F15/04
Filed: 1955-12-17
Abstract: 813,393. Baling presses. BAMFORDS Ltd. Dec. 5, 1956 [Dec. 17, 1955], No. 36258/55. Class 94(1). An agricultural baker, e.g. of the kind described in Specification 785,857, comprises a baling chamber formed by channel members 11 and 14, Fig. 2 and a ram 15 reinforced by four longitudinal angle members 16, the ram being reciprocably mounted by two pairs of grooved rollers 19 mounted on axles 17 carried by two of the members 16 and cooperating with guide rails 21 adjustably secured to the limbs 13 of one of the channels 11, and by a roller 28 running in a guide channel 26 secured to the other channel 11. The rollers 19 are located at the side of the chamber in which the feed opening is situated. In a modification, Fig. 4, four pairs of bevelled rollers 19 are carried by the four members 16 and cooperate with adjustably mounted rails 21. According to the Provisional Specification, the ram may be reciprocated by hydraulic means.
Patent GB-177271-A (GB)
Title: Improvements in and in the manufacture of adjustable sockets for the brackets of shop window and other like fittings
IPC: A47B57/56
Filed: 1920-12-29
Abstract: 177,271. Evered & Co., Ltd., and Evered, S. Dec. 29, 1920. Metal bars.-A two-part bracket socket adapted to slide upon an upright is manufactured by cutting lengths from a bar, produced by extrusion &c., the bar having a channel a and one or more longitudinal beads d. The longitudinal edges at the open side of the channel are so shaped, such as at b and c, that two cut-off portions may interengage, as shown in Fig. 7 to form a clip which is secured on the upright g by a set-screw i. The beads d are drilled to form sockets e for the bracket arms.
Patent GB-884464-A (GB)
Title: Improvements in or relating to electric motor units
Inventor: AKERMANN PAUL
IPC: H02K11/00
Filed: 1958-11-12
Abstract: 884,464. Electric motors. E.M.B. ELEKTROMOTORENBAU A.G. Nov. 12, 1958, No. 36378/58. Class 35. [Also in Group XIX] In an electric motor unit, embodying e.g. a pump not shown, and including an electric motor having a stator 2 and a rotor mounted on a shaft 6 rotatably carried by a housing 1 of the unit, a member 11 is provided to indicate the direction of rotation of the shaft; the member is rotatably supported in a concentric bore 10 through an end wall of the housing, and means internally of the shaft e.g. the pressure of the pumped liquid press the member when the shaft rotates so as to displace it to the operative position shown wherein it is maintained in driven engagement with the shaft an end of the member then protruding from the housing to make the indication. The shaft 6 has a bore 14 whose shoulder 14a is engageable by dogs 17 on the forked end of the member 11 to prevent the latter being forced out of the housing by the pressure of the pumped liquid which is admitted from the pump via the rotor cavity within a stator sealing tube 4 and shaft bores 14, 15. The member 11, which is preferably of corrosion-resistant material such as stainless steel, is manually axially displaceable back to its inoperative position in which it is disengaged from the shaft and its head is screwed into a threaded bore 12. Axial play of the shaft is limited by discs 20, 21 which are secured to the shaft and engage a bearing bush 7 rigidly secured to a bearing member 3 screwed to a housing recess 1a. Specfication 858,074 is referred to.
Patent GB-1460538-A (GB)
Title: Apparatus for 0ntrolling exposure in electrophotographic printing  machines
IPC: G03G15/08
Filed: 1974-08-19
Abstract: 1460538 Automatic exposure control XEROX CORP 19 Aug 1974 [27 Aug 1973] 36393/74 Headings G2A G2H and G3R  In a xerographic copying machine using a developer comprising toner particles and carrier particles, the exposure of the photo-conductive drum to the light image of an original is controlled in response to an error signal representing the difference between a reference signal and a signal corresponding to the detected optical density of toner particles deposited on a transparent electrode positioned in a non-image area of the photoconductive drum. The exposure may be controlled by varying the voltage of the power supply to the lamps illuminating the original, or by varying the width of a slit through which the light rays are passed. The error signal may also be used to dispense toner particles into the developer mix.
Patent GB-343205-A (GB)
Title: Improvements in or relating to devices for supplying radio receiving apparatus and the like from alternating current electric mains
IPC: H04B1/12
Filed: 1929-11-29
Abstract: 343,205. Transformers. SOC. DES ETABLISSEMENTS PERICAUD, 26, Rue Arthur Rozier, Paris. Nov. 29, 1929, No. 36649. Convention date, Nov. 30, 1928. [Class 38 (ii).] The electrostatic effect of the mains on a mains-operated wireless receiver is rendered negligible by using a mains transformer, Fig. 1, the windings P, S1, S2 of which are on different portions of, and are spaced from, its magnetic circuit M. The capacity between the primary and secondary windings is not greater than that between the receiver and earth, that is about 100 ÁÁF. A metallic screen x, y is arranged between the primary and secondary windings.
Patent GB-522796-A (GB)
Title: Improvements in or relating to boots and shoes
IPC: A43B7/12
Filed: 1938-12-16
Abstract: 522,796. Boots &c. WARD & CO., Ltd., F., and WARD, P. A. Dec. 16, 1938, No. 36702. [Class 17 (ii)] The welt D of a shoe is turned downwards and secured to the edge of the sole B, and preferably also to the edge of the heel. The welt and upper may be of contrasting colours. In some cases, an additional strip is interposed between the edge of the sole and the downturned welt. Reference has been directed by the Comptroller to Specifications 136,371, 216,416, 240,059, 240,187, [all in Class 17 (ii)], 505,060, 514,856 and U.S.A. Specification 2,046,444.
Patent GB-952518-A (GB)
Title: A combined mixer and conveyor unit for granular, powdered or like materials
Inventor: CIANI GINO
IPC: B22C5/04
Filed: 1961-10-13
Abstract: The description is the same as that of Specification 952,517 but the claims relate to the means for controlling the apparatus.
Patent GB-1525473-A (GB)
Title: Ventilation system
IPC: F24F7/04
Filed: 1975-09-05
Abstract: 1525473 Ventilating ships engine rooms SVENSKA FLAKTFABRIKEN AB 5 Sept 1975 [9 Sept 1974] 36760/75 Heading F4V In an elongate engine room of a ship including one or more internal combustion engines 2, a ventilation system comprises four vertical ducts one in each corner of the engine room, each duet having a fresh air intake including a fan and four outflow openings 12a, 13a, 14a, 15a, and a system of conduits 21 separate from the ducts and supplied with air by one or more fans 22, the conduits 21 having nozzles 16, 17 for inducing flow of the fresh air around the engine room, the nozzles 16 being directed longitudinally of the engine room and the nozzles 17 being directed transversely of the engine room. The nozzles are disposed below platforms 5a, 6a, 7a.
Patent GB-961098-A (GB)
Title: Torsional vibration damper for plate clutches
IPC: F16D13/68
Filed: 1962-09-27
Abstract: 961,098. Resilient couplings. F. G. GOETZEWERKE A.G. Sept. 27, 1962 [Dec. 6, 1961], No. 36787/62. Heading F2V. A clutch plate is supported on an inner sleeve 1 by a metal ring 3, having a radial flange 7, connected to a trapezoidal section rubber element 2 at the latters narrow outer periphery. The inner sleeve 1 may have a shallow tooth profile to increase the connection with the rubber element 2 bonded thereto, and the ring 3 may comprise two angle-section rings spotwelded together and having long 7 and short 5 flanges for securing and centring the clutch disc.
Patent GB-912795-A (GB)
Title: A process for the dehydrogenation or organic compounds
IPC: C07C5/333
Filed: 1960-10-27
Abstract: C4-7 olefins are dehydrogenated (see Group IV(b)) in presence of a solid catalyst containing oxides or oxygen-containing salts of Bi with Mo, W or P.  The catalyst may be, e.g. Bi molybdate, tungstate or phosphate, possibly supported, e.g. on sintered or bonded silica sand aggregates, calcined diatomic earths, fused aluminas bonded corundum pellets, crushed fire brick or pumice; it may be mixed with, e.g. silica, powdered Al or (in Example 8) glass chips.  An acid solution of a polyphosphate or a heteropolyacid such as phosphotungstic, phosphomolybdic, silicotungstic or silicomolybdic acids (or soluble salts thereof) may be used in preparing the catalyst.ALSO:C4-7 olefins are dehydrogenated to the corresponding diolefins in presence of oxygen, optionally steam, and a solid catalyst containing oxides or oxygen-containing salts of Bi with Mo, W or P.  The catalyst may be e.g. Bi molybdate, tungstate or phosphate, possibly supported, e.g. on sintered or bonded silica sand aggregates, calcined diatomic earths, fused aluminas, bonded corundum pellets, crushed fire brick or pumice; it may be mixed with e.g. silica, powdered Al or (in Example 8) glass chips.  An acid solution of a polyphosphate or a heteropolyacid such as phosphotungstic, phosphomolybdic, silicotungstic or silicomolybdic acids (or soluble salts thereof) may be used in preparing the catalyst.  Examples describe the conversion of butenes to butadiene, but also mentioned are the conversion of tertiary amylenes to isoprene, normal amylenes to piperylene and hexenes and heptenes to the corresponding diolefins.
Patent GB-1149395-A (GB)
Title: Improvements in or relating to beneficiation of ores
IPC: B03D1/004
Filed: 1966-08-18
Abstract: 1,149,395. Froth flotation. UNITED STATES BORAX & CHEMICAL CORP. 18 Aug., 1966 [9 Sept., 1965], No. 37095/66. Heading B2H. Potash is recovered from a potash ore by grinding the ore, pulping the ground ore, conditioning the ore pulp with a flotation reagent comprising a mixture of a long chain ailiphatlic (i.e. from about 7 to 18 or more carbon atoms) amine collector reagent and an aromatic oil, and subjecting the conditioned ore pulp to froth flotation. The aliphatic amine collector reagent is commonly prepared from beef tallow and is usualy used in the form of a salt, e.g. amine acetate. The aromatic oils used are of the polycyclic type with at least three rings in the molecule, e.g. tricyclic or tetracyclic hydrocarbon compounds, such as acenaphthenes, fluorenes, phenanthrenes, pyrenes and benzonaphthenes, and may contain minor amounts of alkyliindans, tetralins or naphthalenes. The weight ratio of amine to aromatic oil is preferably 1:1. The ore may be ground to about-8 mesh and after pulping maybe deslined to remove clay and fines. The pulp is then treated with the flotation reagent and subjected to froth flotation. Preferably, the deslimed feed is split, prior to flotation, into coarse and fines and the two fractions are treated separately with the flotation reagents, the treated fractions being then recombined for flotation. The amine collector may have an average iodine value of between 10 and 15 and the flotation may be effected at a temperature of between 8‹C and 20‹C. A number of comparative tests are given.
Patent GB-1044830-A (GB)
Title: Improvements in and relating to curtain suspension devices
IPC: A47H13/12
Filed: 1964-09-10
Abstract: 1,044,830. Suspending curtains. M. LIEBNER. April 29, 1965 [Sept. 10, 1964], No. 37124/64. Heading A4B. [Also in Division E2] A clip for suspending a curtain fitted with a looped ruffle tape comprises a hook 1 or eye for engaging a runner, a stem 2 for passing downwardly into a loop opening, and a spring arm 3 integral with the upper part of the stem 2 and which in use is spring flexed away from the stem to permit the insertion of the stem through the loop, the spring arm 3 having a hooked end 6 to support the loop from beneath. The stem 2 is formed with a recessed portion 5 which accommodates the end 6a of the hook 6. A finger engageable projection 7 is formed on the spring arm. The clip may be a one piece moulding of resilient plastics material.
Patent GB-783193-A (GB)
Title: Improvements in or relating to detergent powders
Inventor: THOMAS RICHARD
IPC: C11D3/06
Filed: 1954-12-23
Abstract: A process of preparing a free-flowing detergent powder comprises spray-drying a slurry containing (a) an organic anionic soapless detergent, such as an alkylaryl sulphonate or an alkyl sulphate; (b) tetrasodium pyrophosphate; and (c) sodium polymetaphosphate, suitably of formula (NaPO3)n where n is greater than 3, the ratio of pyrophosphate to polymetaphosphate being within the range 4 : 1 to 1 : 1, and preferably in the range 2.5 : 1 to 2 : 1, by weight.  The quantities of the constituents are desirably so chosen that, in the final powder, the amount of anionic detergent contained is 5-40 per cent, preferably 15-30 per cent, by weight, and the total amount of condensed phosphate is 5-50 per cent, preferably 20-35 per cent. Such adjuncts as the alkali metal sulphates, chlorides, silicates, borates, carbonates and orthophosphates, salts of carboxymethyl cellulose, fluorescent whitening agents, perfumes, such lathering and detergent aids as the fatty acid alkanol-amides, and anti-tarnishing agents may also be incorporated in the compositions.
Patent GB-1474445-A (GB)
Title: Swinging-sliding doors fastening mechanism
IPC: E05B83/04
Filed: 1974-08-27
Abstract: 1474445 Latches ARN KIEKERT SOHNE 27 Aug 1974 [1 Sept 1973] 37319/74 Heading E2A A fastening mechanism for a sliding vehicle door of the sort which completes its closing movement by rotating about a vertical pillar into a flush position, comprises a forked bolt 10 which engages a pin 7 on the door and which is rotated by a piston and cylinder unit 11 to its latched position (at 14, 15) in which the door is held in its fully closed position.