baber/WOPTO huggingface dataset:
Patent GB-775786-A (GB)
Title: Improvements in and relating to gas turbine power plant
IPC: F02C7/36
Filed: 1954-11-09
Abstract: 775,786. Gas turbine plant. SVENSKA TURBINFABRIKS AKTIEBOLAGET LJUNGSTROM. Nov. 9, 1954 [Nov. 23, 1953], No. 32394/54. Class 110 (3). [Also in Groups XXIV and XXXV] A gas turbine plant, comprising a compressor supplying air to a combustion chamber feeding a turbine driving the compressor forming a gas generator which feeds a separate power turbine, has the power turbine coupled to an electric generator by means of a coupling of the lamination or cone type, which coupling is engaged and disengaged by means of a fluid under pressure and a retraction spring acting on a reciprocable cylinder connected to one half of the coupling under the control of compressed gas supplied through a conduit from the compressor of the gas generator so that the coupling is engaged when the gas generator reaches a predetermined speed. The electric generator 1, Fig. 1, is driven by a power turbine 2 supplied with working fluid by a gas generator comprising a compressor 3, combustion chambers 5 and a turbine 4 which drives the compressor 3. The shaft 7 of the generator 1 and the shaft 8 of the turbine 2 are connected by a releasable coupling, Fig. 2, comprising laminae 9 alternately attached to the generator shaft and a casing 11 attached to the turbine shaft. A cylinder 13 which slides on a piston 12 has a flange 14 which on axial displacement brings the laminae 9 into or out of engagement. The cylinder 13 is moved to the left by the action of compressed air supplied through the passages 17 and 18 from the discharge or any stage of the compressor 3. The arrangement is such that when the gas generator is stopped the pressure on the cylinder 13 falls and the clutch is disengaged by the spring 15. When the generator 1 is large, the two halves of the coupling should be synchronized before they are engaged. For this purpose toothed wheels a and co-operating permanent magnets with windings b are provided. The frequencies of the two windings are compared and used to energize a relay which allows the coupling to be engaged. To make the clutch quick acting a spring- loaded valve may be provided in the conduit 17. This valve is arranged to open the passage through the conduit when a certain pressure is reached and to vent the downstream end of the conduit to atmosphere below this pressure. In a modification this valve is operated by a speed
Patent GB-1312845-A (GB)
Title: Punching knives for pasties or patties
IPC: A21C11/10
Filed: 1970-07-03
Abstract: 1312845 Cutting dough A A DEHAECK 3 July 1970 [10 July 1969] 32440/70 Heading B5A A cutter for pasties comprises two knives 1 and 2 having edges 3 and 4 forming closed configurations in parallel planes, and a member 7 having slots 10 and mounted on pins 8 so as to be movable between a retracted position when the pasties are being cut, to an extended position to expel the pastie after cutting. The member 7 moves to the extended position under gravity. The knives are joined to a plate 5 having a hole 6 through which the residue dough is sucked by vacuum from the region within the inner knife 2. A hole 15 in the plate 5, or in the knife 2, allows the cut pastie to be released. In Fig. 1 the knife 1 is scalloped. The cutters of Figs. 3 and 4, not shown, are fish-shaped, and the member 7 is supported on pins (12) disposed parallel to the axis of movement of the member.
Patent GB-1105831-A (GB)
Title: Improvements in methods and machines for operating on blanks or webs of sheet material
Inventor: STREET LESLIE JOHN
IPC: B29C51/18
Filed: 1964-08-11
Abstract: 1,105,831. Sheet delivering apparatus. PARNALL & SONS Ltd. 9 Aug., 1965 [11 Aug., 1964], No. 32591/64. Heading B6H. Apparatus for pressure forming of thermoplastic sheets comprises two reciprocating moulds 9, 10 on to which are positioned sheets of material which when deformed by a movable platen 5 at an operating station 11 are moved alternately to respective stacking stations 13, 12 by air cylinders 8. At the stacking stations further air cylinders 15 displace the moulds and the sheets mounted thereon into stacking frame 16, which is provided with sheet retaining means which hold frictionally the deformed sheet and the mould is returned downwardly and then displaced into the operating station.
Patent GB-497878-A (GB)
Title: Improved air inlet valve for compression-ignition engines in which the vacuum in the intake manifold is utilized to actuate brakes
IPC: F02B67/08
Filed: 1937-11-26
Abstract: 497,878. Preventing stalling of engines. ALBION MOTORS, Ltd., FULTON, H. W., and STEAD, E. B. Nov. 26, 1937, Nos. 32627 and 33283. [Class 7 (ii)] In a compression-ignition engine in which the vacuum in the air intake is used to actuate vehicle brakes, stalling of the engine is prevented by an automatic air-inlet valve adapted, when the accelerator pedal is released, to close so as to produce the desired vacuum in the intake pipe, but to open to admit air before the engine speed falls below idling speed. The Figure shows a throttle valve for the air intake adapted to serve as the automatic air-inlet valve. The throttle 2 is unbalanced about its spindle 5 and is connected to an arm 10, which has a spring connection 11 to an arm 8 which is connected to the accelerator pedal and is free to rock about the spindle 5. When the accelerator is released while the engine is running above idling speed, the vacuum created in the intake causes the throttle 2 to close, thereby providing sufficient vacuum for the brake operation ; but when the engine speed falls to idling speed, the decreasing vacuum allows the spring 11 to open the throttle an amount determined by an adjustable stop 13.
Patent GB-1225069-A (GB)
Title: Process for the preparation of amorphous copolymers of ethylene
IPC: C08F210/00
Filed: 1969-06-27
Abstract: 1,225,069. Amorphous copolymers of ethylene. STAMICARBON N.V. 27 June, 1969 [1 July, 1968], No. 32638/69. Heading C3P. Amorphous copolymers are prepared by polymerization, in the liquid phase, of ethylene, at least one other α-alkene and, if desired, one or several polymerizable compounds containing a plurality of ethylenically unsaturated groups in the presence of a catalyst comprising an organo-aluminium dihalide, a vanadium compound and no more than 60 mole per cent based on the aluminium compound of an organoalkali metal compound. In the examples ethylene, propylene and ethylidene norbornene are polymerized in heptane as a diluent using as catalyst ethylaluminium dichloride, n-butyl lithium and VOCl 3 . The products of polymerization are mixed with ZnO, carbon black, thiuram, a mercaptan, sulphur and a mineral oil and cured.
Patent GB-457991-A (GB)
Title: Improvements in methods of setting up assembled pairs of locomotive wheels for centre-marking and machining
Filed: 1935-11-25
Abstract: 457,991. Centre-marking and machining the crank-pins of locomotive wheel pairs. SPERAT, F., 43, bei Pardubico, Bohdanec, Czecho Slovakia. Nov. 25, 1935, No. 32688. [Class 83 (iii)] A method of setting up an assembled pair of locomotive wheels for marking the centres and machining the crank-pins or crank-pin holes comprises centring the axle-journals by means of supports 7, 8, Figs. 1 and 3, which are vertically adjustable in axle-supporting uprights and bringing the centres of these supporting members on to a level with the centre of the tool spindle 4 with the aid of gauges 28, 28<1> mounted in the supporting uprights and adapted to touch the peripheral surfaces of the journals 11 while the tool-spindle carrier is adjusted laterally, with the aid of further gauges. The gauges 28, 28<1>, Fig. 3, are carried by blocks 30 which may be moved around arcuate guides 18, 19 to centre the journals 11, the spindle carrier 3 being set laterally by a gauge 27. The centre holes are marked by tools 24, 25, Fig. 1, arranged at axially opposite ends of the machine. For machining the crank-pins a turning tool-carrier is mounted in the spindle 4, Fig. 4, and this is moved horizontally a distance equal to half the crank throw by end gauges. A rotatable gauge 29 is used to position the crank-pin at the other end of the machine so that the pin 16 to be machined is brought into the horizontal plane containing the tool spindle axis. A modification of the setting gauges for positioning the journals is described comprising a pair of beams with contact faces adapted to engage above and below the journal, the ends of the beams are provided with gauges which contact a wedge member the bisector of which lies in the horizontal plane containing the tool spindle axis.
Patent GB-942567-A (GB)
Title: Improvements in or relating to magnetic storing devices
Inventor: BRADLEY EDWARD MICHAEL
IPC: G11C5/04
Filed: 1960-09-23
Abstract: 942,567. Magnetic thin film storage devices. INTERNATIONAL COMPUTERS & TABULATORS Ltd. Aug. 1, 1961 [Sept. 23, 1960], No. 32750/60. Heading H3B. [Also in Division H1] A conductor structure for a thin magnetic film information storage device includes at least one insulated conductor, the structure being arranged so that part of it is adjacent the film and part extends beyond the film, the latter part being overlaid with a layer of conductive foil. A plurality of substrate plates 1, each having a thin magnetic film 7 on one side, are arranged in back-to-back pairs and a conductor structure 3 passes round the pairs of plates close to the film on one plate of each pair, while a similar structure 4 passes adjacent the film on the other plate of each pair. Structures 3, 4 each comprise a plastic tape 8 carrying on its outer surface parallel sense conductors 9. over which is placed a second tape 11 carrying parallel drive conductors 5. Between the two tapes, in the parts outside the area of a film 7, anodized aluminium foils 10 are provided to reduce the mutual and self-inductances of conductors 5 and 9. The substrate plates 1 are also preferably of aluminium. A single substrate with a magnetic film on each side may replace each pair (Fig. 3, not shown), and in another embodiment conductor structure 4 is omitted and carrier 3 links each magnetic film 7 (Fig. 4, not shown). Conductors 5, 9 may be printed on plastic sheets 8, 11 or formed by vacuum or electrolytic deposition. An alternative construction is described in which conductors 9 are printed on to sheet 8, and are covered with varnish, a conductive metal layer is vacuum and/or electrolytically deposited on the parts outside the magnetic film areas, a further layer of varnish is applied, and conductors 5 are printed over the second layer of varnish. Specification 942,549 is referred to.
Patent GB-327860-A (GB)
Abstract: 327,860. British Celanese, Ltd., Ellis, G. H., Olpin, H. C., and Kirk, E. W. Aug. 1, 1928. Naphthalene, dyes derived from.-Nitrogenous dyestuffs are made by introducing nitrogen into naphthazarin or its nuclear substitution products or reduction products thereof by treatment with ammonia or a substance yielding ammonia in the presence or not of solvents or catalysts. When reduction products are used all the steps, including the oxidation of the leuco compound, may be carried out in the same solution. They are used for dyeing organic substitution derivatives of cellulose, regenerated celluloses and animal and vegetable fibres and may be applied in the reduced state, i.e. by a vat process or in solution, aqueous suspension or in colloidal form. They are also converted either in the reduced or unreduced state into dyestuff preparations, e.g. by grinding in colloid mills, by dissolving in a solvent and mixing with water containing or not containing protective colloids or dispersators, or by treatment with dispersing agents whether alone or in the presence of protective colloids and/or liquids. Preparations for vatting may contain reducing agents, alkali or the products of Specification 262,506, [Class 15 (ii), Dyeing, Processes &c. for]. As dispersing agents may be used, those of Specifications 219,349, 224,925, 242,393,273,819 and 273,820 used alone or in conjunction with the solvents of Specification 242,711 and 269,960. In examples (1) naphthazarin is treated with ammonia and sodium hydrosulphite in methylated spirits and the leuco product obtained oxidized by air. The resulting product dyes cellulose acetate in grey shades, (2) naphthazarin is reduced with sodium hydrate and hydrosulphite, the leuco compound treated with ammonia in presence of copper acetate and the product oxidized with air, (3) monomethylnaphthazarin paste is added to ammonia containing a trace of copper salt, reduced with hydrosulphite, and when then amidation is completed the leuco compound is oxidized. Monomethylnaphthazarine is made from hydrotoluquinone and succinic anhydride according to Specification 315,331.
Patent GB-819245-A (GB)
Title: Silicone elastomers
Filed: 1955-11-18
Abstract: A flowable heat-curable gum stock comprises: (1) one or more polysiloxanes convertible to the solid elastic state and containing substantially 2 hydrocarbon radicals per Si atom which are methyl, ethyl or phenyl radicals and vinyl, allyl or cyclohexenyl radicals, the unsaturated radicals being present in amount such that from 0.037 to 0.74 per cent of the total Si atoms are bonded therewith; and (2) a dialkyl peroxide as catalyst. Siloxane (1) may be linear or cyclic or a mixture thereof and may contain a small amount of <FORM:0819245/IV (a)/1> units.  Catalysts specified are di-tertiary butyl-, tertiary butyl-tri-ethylmethyl- and tertiary butyl tertiary triptyl-peroxides.  The gum and filler, e.g. silica, zirconium silicate, diatomaceous earth, calcium carbonate and carbon black may be subjected to a room temperature ageing period or to a precure heat-ageing at 250 DEG  to 300 DEG  F. before addition of the curing catalyst.  After heat curing at 300 DEG  F. or above, the products are subjected to a heat-ageing treatment.  Examples are given, some of which are comparative, in which the siloxane, filler, catalyst or pre- or post-curing treatment is varied.
Patent GB-1015149-A (GB)
Title: Improvements in or relating to selective partial dealkylation of tertiary alkylated phenols
Filed: 1964-08-13
Abstract: Phenols substituted in the 4- and 6-positions with tertiary alkyl groups, and further substituted in the 3-position with a primary or secondary alkyl group of up to 5 carbon atoms, are partly dealkylated by heating them with a zirconium aryloxide, the reaction being dis-continued when 0.2-1.5 mols. of iso-olefine per mol. of di-t.-alkylphenol have been evolved. The product contains a proportion of 4-t.-alkyl-3-alkylphenol in excess of that of 6-t.-alkyl-3-alkylphenol. The reaction may be effected at 200-350 DEG C., preferably at atmospheric pressure. The catalyst may be a full or partial zirconium salt of a phenol, e.g. of phenol, a cresol, resorcinol, catechol, pyrogallol, phloro-glucinol, a naphthol, a bisphenol or a biphenol, specified catalysts being zirconium phenoxide, zirconium m- or p-toloxide and zirconium catecholate and resorcinolate.  The catalysts may be prepared by heating zirconium tetrachloride or oxide or a zirconium alkoxide with a phenol to 60-250 DEG  C.  The catalyst may be preformed or formed in situ, and the phenol used in preparing the catalyst may be the phenol to be dealkylated or one of the dealkylation products.  Examples are given in which (1) 4,6 - di -t. - butyl - m - cresol yields 4 - t. butyl-m-cresol and a lower proportion of 6-t.-butyl m-cresol, (2) 4,6-di-t.-butyl-3-ethylphenol yields 4-t.-butyl-3-ethyl-phenol and some 6-t.-butyl-3-ethylphenol and (3) 4,6-di-t.-butyl-3-isopropylphenol yields 4-t.-butyl-3-isopropyl-phenol and some 6-t.-butyl-3-isopropylphenol. For comparison, an example is given also of the dealkylation of 4,6-di-t.-butyl-m-cresol using a titanium aryloxide catalyst.
Patent GB-1002232-A (GB)
Title: Reactive azo dyestuffs containing triazole residues and processes for their manufacture
IPC: C09B62/006
Filed: 1963-08-21
Abstract: The invention comprises reactive azo dyes which contain at least two sulphonic acid groups and are of formula <FORM:1002232/C4-C5/1> wherein R1, R2 and R3 are benzene or naphthalene residues, m is 1 or 2, Y is a benzene residue bound to R3 through a triazole ring and X is the residue of b -chloropropionic, acrylic or a chloroacrylic acid or a halogenated heterocyclic residue containing 2 or 3 ring nitrogen atoms. The dyes may be prepared by triazolizing an amino-azo dye of formula <FORM:1002232/C4-C5/2> wherein Z is a benzene residue having an -NH2 group in o-position to the azo bridge and condensing the aminotriazole dye obtained with e.g. beta-chloropropionyl chloride, acrylic and chloroacrylic acid halides, tri- and tetrachloropyrimidine and preferably, cyanuric chloride or bromide or monocondensation products thereof.  The traizolation and condensation steps may be reversed.  The dyes may be used to colour cellulose fibres from an alkaline dyebath in yellow shades.  Examples describe the preparation of the dyes and their use in dyeing. Specification 838,337 is referred to.
Patent GB-1120577-A (GB)
Title: The encapsulation of semi-conductor elements
Inventor: JUCHMANN HEINZ
IPC: H01L23/48
Filed: 1966-07-25
Abstract: 1,120,577. Potting semi-conductors. LICENTIA PATENT VERWALTUNGS G.m.b.H. 25 July, 1966, No. 33368/66. Heading B5A. [Also in Division H1] Wafers 2 of semi-conducting material, e.g. Si, having an electrode region on each face, are separated by discs 3 of a noble metal such as Ag, and the stack so formed is enclosed in an insulating envelope of plastics material, e.g. silicone rubber. The assembly is formed in a mould 1 into which the plastics material is injected through an aperture 5 while the stack is compressed axially. When the plastics has hardened sufficiently, if necessary by the application of heat, the assembly is removed from the mould and rotated about its longitudinal axis to produce a uniform envelope (6), Fig. 2 (not shown). The stack is then divided along lines (X) to provide individual elements.
Patent GB-190011-A (GB)
Title: Improvements relating to puncture resisting devices for pneumatic tyres
IPC: B60C19/12
Filed: 1921-12-13
Abstract: 190,011. Richards, E. J. Dec. 13, 1921. Jackets and covers.- An intermediate liner, for insertion between the outer cover 1 and the tube 8, comprises two bands 3, 7 of leather, rub. ber, rubber-impregnated fabric, or the like, between which are riveted overlapping arch-shaped metal plates 6. The rivets 9 pass through the overlaps of the plates and a thin layer of fabric, leather, or rubber 10 protects the tube 8 from the rivet heads. The bands 3, 7 have chamfered edges and a series of slits or V-shaped slots 11 perpendicular to the edges. The plates 6 may be of aluminium or tinplate, non-rusting and non- corroding metal being preferably used.
Patent GB-995773-A (GB)
Title: Semi-conductor devices
IPC: H01L27/00
Filed: 1962-08-31
Abstract: 995,773. Semi-conductor devices. BENDIX CORPORATION. Aug. 31, 1962 [Sept. 8, 1961], No. 33525/62. Heading H1K. In a unipolar transistor the source electrode forms a tunnel junction with an extension of the current channel region. A typical embodiment, Fig. 7, constructed from two N-type crystals meeting in a grain boundary 82 the P + current channel is formed along the grain boundary by diffusion of gallium into surface 84 of the crystals. The source electrode is a goldantimony or lead-antimony pellet alloyed to the P + surface extension of the current channel and drain 88 a pellet of indium alloyed to the other end of the grain boundary. The control electrode 90 is of copper, silver or gold. In an alternative device, Fig. 6, the ring control electrode 68 is mounted on a P region formed by boron diffusion through a mask. After the diffusion the wafer face is etched with the undiffused central region protected to produce the mesa 70 to which drain electrode 72 is attached. In the Fig. 4 device the tunnel junction is formed by diffusing arsenic into the base of recess 52 and alloying acceptor material 52 to it. Further devices with different electrode configurations are described with reference to Figs. 2 and 3 (not shown). In all cases the source-drain V-I characteristic is similar to that of a tunnel diode. When the control voltage is changed by amount dV the resulting change dI in sourcedrain current depends on which of its two stable conditions the device is operating in. Thus the state of the device can be read out non-destructively.
Patent GB-197893-A (GB)
Title: Improvements in cup feed machines
IPC: D05B27/18
Filed: 1922-12-08
Abstract: 197,893. Thompson, W. P., (Union Special Machine Co.). Dec. 8, 1922. Overhead-sewing machines.-The feed-cups 5, 6 are driven intermittently by separate gears at speeds which may differ and are adjusted either separately or together. The outer cup 6 is carried in a bracket pivoted at 24 and is rotated by a toothed wheel 29 on a shaft 30 which carries at its upper end a silent ratchet gear. This gear is actuated by means of a link 34, a slotted leverarm 37 and shaft 20. The inner cup is similarly actuated from the shaft 20 bv means of a slotted lever-arm 19 and a link 15. The shaft 20 is oscillated by an eccentric on a shaft 2, a rock shaft 43, a link 39 and a slotted lever-arm 37<1>. The outer cup is pressed inwards by a spring 25 acting on the lifting-lever 28.
Patent GB-1384849-A (GB)
Title: Process for obtaining pepsin
IPC: C12N9/64
Filed: 1973-07-13
Abstract: 1384849 Extracting pepsin WILSON PHARMACEUTICAL & CHEMICAL CORP 13 July 1973 [14 July 1972] 33550/73 Heading C3H  A process for obtaining pepsin from animal stomach linings comprises digesting the stomach linings in an aqueous solution at an acid (preferably acetic acid) pH of not more than 5; removing the undissolved portion of the stomach linings from the digestion solution; cooling the digestion solution to below 45‹ F. and adding thereto ammonium sulphate in a quantity producing 0À3 to 1À0 saturation to salt out a precipitate; dissolving the precipitate in water; if necessary adjusting the acidity of the resultant solution to pH 4-4À5; removing the ammonium sulphate component of the solution of precipitate by diffusion through a semi-permeable membrane to produce a resultant solution consisting essentially of pepsin and recovering the pepsin therefrom in dry powder form. Diffusion techniques employed are dialysis and ultrafiltration.
Patent GB-640193-A (GB)
Title: Improvements in or relating to alternating current buzzers
IPC: G10K1/062
Filed: 1947-12-19
Abstract: 640,193. Substation equipment. STANDARD TELEPHONES & CABLES, Ltd. Dec. 19, 1947, No. 33623. Convention date, Dec. 23, 1946. Drawings to Specification. [Class 40 (iv)] An alternating current buzzer for use in a telephone subset comprises an induction coil of a type normally used in subsets and having one or more air-gaps in its magnetic circuit, on which is detachably mounted a vibrating armature. The armature preferably comprises a plate of soft-iron or the like mounted on a leaf-spring arranged parallel to one of the surfaces of the magnet yoke and opposite an air gap. The induction coil when thus adapted serves both as an induction coil and as a receiver of calling current, so that the normal bell is not required.