baber/WOPTO huggingface dataset:
Patent GB-1280440-A (GB)
Title: Separator for separating a liquid from a mixture of the liquid and a compressible fluid
IPC: B04C3/00
Filed: 1971-04-19
Abstract: 1280440 Centrifugal separator GUTEHOFFNUNGSHUTTE STERKRADE AG 19 April 1971 [17 Nov 1970] 27209/71 Heading B2P A centrifugal separator for separating a steam-water mixture comprises an ascending duct 1 the upper end of which is fitted with a ring of vanes 2 traversed by passages 7 for the removal of separated steam and surrounded by a collector casing 3 which is closed at 8 immediately above or at a short distance above the ring of vanes and is fitted with vanes 11 for deflection of separated liquid at a constriction 10 in a lower end portion of the annular space between the casing and the duct. The passages 7 are axial and are formed by pairs of adjacent vanes joined together to present a continuous outer surface. Between adjacent pairs of joined vanes are single vanes defining passages 6 which are open at the sides but are closed at the top and bottom. The passages 6 are so orientated that the steamwater mixture passing through them is imparted with a rotary motion as it enters the casing 3. The constricted annular space 10 is formed by the insertion of members 9. The vanes 11 may be fitted in or above the space 10. A water-seal trap 12 may be provided downstream of the vanes 11. The axial passages 7 through the ring of vanes 2 open into a steam extractor pipe 4 in which is inserted a guiding cone 5. For further drying the steam, a baffle plate 13 is mounted above the pipe 14 and is provided around its perimeter with a water interception gulley 14 to which are connected drain pipes 15.
Patent GB-1067098-A (GB)
Title: Improvements relating to polyether
IPC: C08L77/00
Filed: 1964-07-01
Abstract: The invention comprises polyethers of the formula <FORM:1067098/C3/1> wherein R is a monovalent hydrocarbon radical, R1 is hydrogen or a radical inert towards polyamides and polyesters, X is a polyether radical consisting of -(C2H4O)n-with or without units of the structure -[(CH2)xO]-y or -(CZH.-CH2O)ywherein n is 10-200, x is 3 or 4, n/y is above 4, and Z is alkyl, haloalkyl or hydroxyl. Specified R groups are butyl, amyl, isopropyl, phenyl and cyclohexyl. Suitable R1 groups are alkyl, alkaryl, carbocyclic, acyl and inorganic ester.  They are prepared by condensing the corresponding dialkyl phenol with appropriate epoxides; preferred catalysts are sodium, sodium hydride and boron trifluoride. The polyethers containing terminal hydroxyl groups may be coupled, e.g. by reaction with PCl3, resorcinol diglycidyl ether, and polyisocyanates. The polyethers may be mixed with fibre-forming polyesters and polyamides prior to spinning; the composition preferably contains 1 to 30% of the polyether which acts as an anti-oxidant and an anti-static agent. The composition may also contain a polyethylene glycol of M.Wt. 2000-20,000 and other antioxidants, e.g. sodium phenyl phosphinate. Many suitable fibre-forming polyesters and polyamides are described. The fibres may be dyed.  The examples describe the preparation of an ethylene oxide/2,6-di-tert.-butyl phenol condensate which is further reacted with (11) epichlorohydrin, (12) propylene oxide, (13) trimethylene oxide, (14) tetramethylene oxide, (15) and (16) methyl iodide and sodium, (17) resorcinol diglycidyl ether, (19) phosphorous trichloride. The products are blended with nylon "6" and "66", spun and dyed.  Reference has been directed by the Comptroller to Specification 930,933.
Patent GB-376561-A (GB)
Title: Improvements in electro-magnetic relays
IPC: B61L1/18
Filed: 1931-09-30
Abstract: 376,561. Electromagnetic relays. GENERAL RAILWAY SIGNAL CO., Rochester. New York, U.S.A.-(Assignees of Hailes, W. D.; Rochester, New York, U.S.A.) Sept. 30, 1931, No. 27274. Convention date, Oct. 15, 1930. [Class 38 (v).] A relay for a railway track circuit is made to be quick dropping and slow picking-up by inductively associating the energizing winding 9 with a winding 11 connected in series with the winding 23 of an auxiliary magnet. Upon de-energization of the winding 9 the auxiliary magnet is energized and so aids the biasing means to produce quick dropping of the relay. Upon re-energization of the winding 9, the auxiliary magnet holds the armature down until the current in the winding 9 has reached a substantially steady state. In a modification, the winding 23 is connected to the secondary of a transformer, the primary of which is in series with the winding 9. Also the auxiliary magnet is placed further from the pivot of the armature than is the main magnet so as to enhance its effect.
Patent GB-1349551-A (GB)
Title: Monoazo compounds processes for their production and their use for the dyeing of natural and synthetic polyamide fibres
IPC: D06P3/04
Filed: 1971-04-19
Abstract: 1349551 Monoazo dyes SANDOZ Ltd 19 April 1971 [2 June 1970 22 Jan 1971] 27335/71 Heading C4P [Also in Division D1] New monoazo dyes of formula wherein R and R 1  are halogen, R 2  is H or halogen, R 3  is halogen or -OR 4  and R 4  is an alkyl group which may be substituted are prepared by coupling a diazotized 2-amino-3,4,6-tri- or -4,6 - di - halo - phenol with a 2 - (4 - halo- or -alkoxy - phenylamino) - 5 - naphthol. They are used to colour polyamide fibres in association with a chroming agent (see Division D1).
Patent GB-988393-A (GB)
Title: Improvements in or relating to centrifugal governors
Inventor: WOOD ROBERT SPURGEON
IPC: G05D13/10
Filed: 1960-08-08
Abstract: 988,393. Speed and inertia governors. PLESSEY CO. Ltd. July 19,1961 [Aug. 8, 1960], No. 27433/60. Heading G3B. A centrifugal gover or comprises a flat or curved diaphragm mounted on the governor shaft for rotation about the axis of the diaphragm, the diaphragm being near the two ends of its radii respectively mounted on the governor shaft and connected to a control element, and centrifugal elements secured to the diaphragm and projecting to one side of it so that centrifugal action deflects the diaphragm axially of the governor shaft, the diaphragm being perforated between the centrifugal elements so that each element is supported by a spoke-like arm which is inclined to the radial direction. A governor comprises a diaphragm 4, Fig. 2, clamped at its circumference to a collar 3 fast with the shaft 1 of a gear-type fuel pump. Centrifugal masses 6 are secured to the diaphragm 4, the flexibility of the diaphragm being increased by means of L-shaped slots 7, Fig. 1, whereby each mass 6 is carried by a spoke-like portion connected to the remainder of the diaphragm by narrow portions 34, 35. The spoke-like portions are inclined to the radial direction whereby both centrifugal and circumferential inertia forces acting on the masses 6 produce flexing of the diaphragm 4 to displace the centre of the diaphragm axially against the action of a helical spring 11 and lift a hemispherical valve 9 off its seat 10, thereby allowing pumped fuel to be spilled from a passage 2. The spring 11 is connected to an adjustable abutment 13 through a ball thrust bearing 12. In a modification, member 5 is extended inwardly to form an abutment against which the spring 11 bears directly. Fig. 5 shows a further embodiment in which the masses 6 (not shown) and the spring 11 are disposed at the left-hand side of the diaphragm 4 so that the diaphragm is flexed in the opposite direction to that in Fig. 2. Instead of rotating with the pump shaft as in Fig. 2, the valve 28 is carried by a diaphragm 23 fixed to a stationary part 25 and is connected to the rotating diaphragm 4 through a ball thrust bearing 24. A heavy spring 29 and a light spring 30, with a piston 26 interposed between them, act on the valve 28 in opposition to the spring 11. Any increase in the pressure of fuel in the passage 32 upstream of the valve 28 acts on piston 26 to move it towards the right, thereby reducing the loading of the spring 30. The reduction of the force exerted by the spring 30 on the valve 28 compensates for the increase in the force exerted on the valve by the fuel. In a modification, the valve 28 is replaced by a valve similar to the valve 9 shown in Fig. 2,and the provision for compensation of pressure variation is omitted.
Patent GB-991174-A (GB)
Title: Semiconductor devices and methods of making them
IPC: H01L23/485
Filed: 1961-07-28
Abstract: 991,174. Semi-conductor devices. WESTERN ELECTRIC CO. Inc. July 28, 1961 [Dec. 9, 1960], No. 27529/61. Drawings to Specification. Heading H1K. An electrical contact to an oxide-coated semiconductor body is formed by depositing on the oxide coating an active metal layer, and depositing on the latter a contact metal layer and heating to transfer at least a portion of the oxygen of the oxide layer to the active metal to form an oxide thereof. The active metal used is one of the following:-titanium, zirconium, niobium, tantalum, thorium or vanadium; and the contact metal used is one of the following:-gold, silver, palladium, rhodium, copper, nickel or platinum. The semi-conductor body may be of germanium, silicon or gallium arsenide. Sufficient active metal is deposited to ensure (a) that the oxide of the active metal, which goes into solid solution in the metal, does not affect the latter's conducting properties and (b) that substantially all the oxygen of the oxide coat is removed so that there is either an intimate contact between the semi-conductor and the active metal or that the oxide layer is thin enough to permit tunnelling. Deposition of the active metal may be by evaporation techniques except in the case of tantalum which is sputtered. The contact metal layer may be either vapour deposited or sputtered. The invention is described in detail in connection with a solar cell comprising a silicon wafer provided with a shallow, broad area, PN-junction, due to the introduction of phosphorus by diffusion techniques. The residual glass layer formed in this process is removed by etching, the cleaned surface being exposed to air at room temperature to provide the oxide surface. Titanium and silver are then used for the active and contact metal deposits. The other surface of the wafer is provided with a standard silver-aluminium eutectic alloy contact. In a further embodiment the thickness of the silicon dioxide may be increased artificially by an amount sufficient to inhibit diffusion of significant impurities from a surrounding phosphorus vapour. Zirconium is then deposited as an active metal according to a prescribed pattern and final layer of niobium is added. On heating the zirconium reacts with the silicon dioxide, and at these points only can phosphorus diffuse into the silicon in the subsequent doping process, the remainder of the silicon dioxide acting as a mask.
Patent GB-983348-A (GB)
Title: Improvements in or relating to a leg mounting for a shelf or the like
IPC: A47B13/06
Filed: 1963-07-11
Abstract: 983,348. Leg mountings for shelves. HAMILTON COSCO Inc. July 11, 1963 [May 16, 1963], No. 27572/63. Headings A4B, A4H and A4W. A shelf 10, or the like, having skirts 16, 17 normal to the plane of the shelf with leaded edges 18, 19 is offset inwardly at its corners to provide recessed mounting seats for legs 12, and has attached at each corner a bracket 20 with a pair of angularly disposed arms 22, 23 which engage the inner faces of the skirts 16, 17, and the beads 18, 19. The legs 12 are fastened to the shelf by bolts 36 extending through aligned openings 38 in the brackets and legs 12 and engaging nuts 40. Each bracket is fastened to the corner of the shelf 10 by inserting a finger 27 between the skirt 17 and bead 19, stressing the skirt 16 inwardly and inserting a finger 28 via a notch 30 in the bead 18 between the skirt 16 and bead 18, whereupon release of the inward stress disposes the finger 28 and notch 30 out of alignment with each other. A pair of lugs 32, 33 on the bracket 20, will engage the upper faces of the beads 18, 19. The bracket 20 is strengthened by bosses 25 formed on the central portion.
Patent GB-745584-A (GB)
Title: Improvements in or relating to bisnorcholane derivatives
Inventor: GREEN JOSEPH
IPC: C07J9/00
Filed: 1953-10-08
Abstract: The invention comprises 3a -acetoxybisnorcholan-22-al, methyl 3a -acetoxybisnorcholanate, and a process for the preparation of compounds of the formula: <FORM:0745584/IV(a)/1> (where R is hydrogen or an acyl group and X is -CHO, -CO2H or an esterified carboxyl group) by ozonolysis of coproergost-22-ene3a -ol or an ester thereof, followed, if necessary, by esterification of the carboxyl group.  The 22-carboxylic acids may also be prepared from the intermediate 22-aldehydes by further oxidation, e.g. with chromic acid, potassium permanganate, hydrogen peroxide in acetic acid, alkaline silver oxide, or air or oxygen in the presence of manganese salts. In examples: (1) 3a -acetoxycoproergost-22-ene in chloroform is ozonized at -70 DEG  C. and the ozonide decomposed posed with zinc and acetic acid to give 3a acetoxy-bisnorcholan-22-al; (2) as in (1), then treating the 22-aldehyde without purification with chromic acid and acetic acid to yield 3a -acetoxybisnorcholanic acid; (3) 3a -acetoxycoproergost-22-ene in pyridine-chloroform is ozonized at 0 DEG  C. and mixture treated with silver oxide in aqueous-methanolic potassium hydroxide to give the bisnorcholanic acid, which is then methylated with methanol and H2SO4 to methyl 3a -acetoxybisnorcholanate. Esterification with diazomethane in ethereal solution is also referred to.
Patent GB-536370-A (GB)
Title: Improvements in or relating to apparatus for the static heat treatment of liquids
IPC: A23L3/16
Filed: 1939-10-12
Abstract: 536,370. Pasteurizing liquids; valves. CO-OPERATIVE WHOLESALE SOCIETY, Ltd., and PARKER, W. T. W. Oct. 12, 1939, No. 27720. [Class 49] [Also in Group XXIX] In apparatus for the static heat treatment of liquids wherein " holding " tanks are brought successively by supply and discharge valves into communicate with supply and discharge conduits, the separate supply and discharge valves are mounted side by side in separate housings 11, Fig. 5, on a common base 10 within which they are geared to a common driving- shaft 26b between them, each valve being of solidplug form with its port 14 extending from one end to the side, with an annular channel 18 in its top face, but not communicating with the port and with a drain passage 19 leading from such channel to the lower end of the valve. Each valve housing has a cap 15 with an integral central pipe union 17 extending into the port 14, a sealing ring 16 of rubber &c. being positioned between the cap and the adjacent end surface of the valve plug. As shown, a mechanical unit A housing the valves and associated mechanism is mounted between a pair of two-tank holding units B, each tank 1 having a manway and cover 5, 6 and the inlet pipes la and suction withdrawal pipes 1b being covered by a pair of lids 8. The rotary inlet or delivery valve C for the milk and the rotary suction withdrawal valve D are geared to a shaft 26a, 26b, Figs. 3, 5 driven from a motor 28 through a gear-box 26c, the two parts of the shaft being coupled by a manually-disconnectible clutch so that the upper part 26b of the shaft can be turned alone by a hand-wheel for turning the valves from port to port for washing &c. purposes. Each tank has a paddle 29 which is driven slowly to and fro from the gear-box 26c. The tanks are heated by pipe systems beneath them, these systems being connected to a water tank 36 heated by an immersed steam coil 37 and the water being circulated by a pump 38 driven from the gear-box. A thermostatically controlled valve 39 is fitted in the delivery pipe of the pump and a thermometer 40 is mounted on the front panel of the unit A. Instrument 41 shows the temperature of the milk passing through the valves C, D, and an indicator 43 shows the quantity of milk in the tanks.
Patent GB-463962-A (GB)
Title: Improvement in preparation of dialkyl ethers of glycol
IPC: C07C43/10
Filed: 1935-10-08
Abstract: Glycol dialkyl ethers are produced by heating a glycol monoalkyl ether in the presence of less than 3 per cent of sulphuric acid and continuously distilling off the dialkyl ether while maintaining the acid concentration below 3 per cent and preferably constant.  This may be done by partial reflux so that only the dialkyl ether escapes, and continuously or intermittently adding more mono-alky ether or a monohydric alcohol.  In an example, ethylene glycol monomethyl ether is heated to its boiling-point with 2--3 per cent of sulphuric acid with continuous distillation of the dimethyl ether and reflux of the monomethyl ether, more monomethyl ether being added during the process to maintain the acid concentration within the necessary range.  If additions are made of a monohydric alcohol or monoalkyl ether having an alkyl group different from the monoalkyl ether treated, mixed glycol dialkyl ethers are produced.
Patent GB-749808-A (GB)
Title: Line indicator for knitting patterns
IPC: A41H31/00
Filed: 1954-09-25
Abstract: 749,808. Line - i ndicato rs. ALBON, M. Sept. 25, 1954, No. 27735/54. Class 100 (3). A line-indicator for use with knitting patterns is of pliable plastic material and is 6 inches long and 1.1 inches wide, being graduated along both sides in eighths of an inch. It is bevelled in cross-section, the bevelled part being raised <SP>1</SP>/ 10  inch above the centre-piece 3, which is provided with two 5-inch slots 1. In use, the indicator is clipped on to the pattern, which passes over the centre piece and below the side portions.
Patent GB-153464-A (GB)
Title: Improvements in gaiters for leaf springs of motor vehicles
IPC: F16F1/24
Filed: 1919-11-11
Abstract: 153,464. Harrison, H., (trading as Harrison & Sons, E.). Nov: 11, 1919. Gaiters.-A gaiter for covering a leaf spring on a vehicle comprises an overlapping edge provided with a strip 1 of steel or other springy material, a flap 5 adapted to lie beneath the underlapping edge 6, and a tongue 7 covering the end of the spring. The gaiter is fastened by means of stiaps 3 passing through slots 2 in the overlapping edge and secured by buckles 4.
Patent GB-865480-A (GB)
Title: Method and apparatus for molding inflatable articles, for example, tyres
IPC: B29D30/06
Filed: 1959-08-17
Abstract: 865,480. Moulding valve-receiving holes in tyre walls. GOODYEAR TIRE & RUBBER CO. Aug. 17, 1959 [Sept. 11, 1958], No. 28004/59. Class 87(2). A hole for receiving a valve, Fig. 4 (not shown) in the side wall of a tyre is formed during vulcanization in a mould 3 by a pin 12 which is moved inwardly to the position shown in dotted lines by supplying compressed air to a piston connected to a rod 8. The pin is held in its retracted position by a spring 16. The member 13 is shaped to form an undercut groove in the tyre to retain the valve member, it is also of elliptical section so that on inflation of the tyre it becomes circular, in section. The pin slides through a sealing gasket 20. Specification 863,111 is referred to.
Patent GB-1127853-A (GB)
Title: Gas turbine engine
Inventor: ELSTONE PAUL MAXWELL LAWRENCE
IPC: F02C6/08
Filed: 1967-06-17
Abstract: 1,127,853. Aircraft propulsion; air cushion vehicles. ROLLS-ROYCE Ltd. 17 June, 1967, No. 28030/67. Headings B7G and B7K. [Also in Division F1] The invention relates to a gas turbine engine comprising coaxial low pressure, intermediate pressure and high pressure rotating systems each being independently rotatable and comprising an axial flow compressor and turbine drivingly interconnected. The IP compressor is arranged to compress more air than is required for the HP compressor, the excess air from the IP compressor being conveyed to a point of use. The engine shown is a gas turbine ducted fan engine and comprises LP compressor 15, IP compressor 18, HP compressor 21, combustion equipment 33, HP turbine 23, IP turbine 20 and LP turbine 17, the LP, IP and HP compressors being connected by shafts 16, 19, 22 to LP, IP and HP turbines respectively. The LP compressor is a ducted fan, part of the air discharging through a propulsion nozzle formed between the fan casing 26 and the main engine casing 28, the remaining air passing to the IP compressor 18. The IP compressor comprises an upstream portion 29 and a downstream portion 30, the upstream portion having a larger capacity than the downstream portion so that part of the air from the upstream portion passes to the annular duct 32 and is utilized externally. The air in the duct 32 passes to a duct 36 within a pylon 12 by which the engine is supported from the wing 11 of an aircraft and the air may then pass under the control of interconnected valve members 37, 41 either to the duct 38 for use in flap blowing or to the duct 39 for use in a forward propulsion nozzle 40. The air taken from the IP compressor could alternatively be used with a blown helicopter rotor for propulsion and boundary layer control; again it could be used for air cushion vehicles.
Patent GB-913270-A (GB)
Title: Improvements relating to motor-vehicle air-heating heat exchangers
Inventor: FIALA ERNST
IPC: B60H1/00
Filed: 1960-08-12
Abstract: 913,270. Air heating-apparatus. DAIMLERBENZ A.G. Aug. 12, 1960, No. 28058/60. Class 64 (3). In a motor vehicle air heater in which air flows over tube groups 1, 2 extending between headers, the header 3 is divided by a partition 5 into a smaller inlet chamber 6 and a larger outlet chamber 7 for the heating fluid (e.g. water) flowing through the tube groups in series, the arrangement being such that the total surface area of the inflow tube group 1 is smaller than that of the outflow group 2 so that substantially equal quantities of heat are given up to the air by each tube group.
Patent GB-778374-A (GB)
Title: Process for the production of regenerated cellulose threads and films from viscose
IPC: D01F2/06
Filed: 1955-10-03
Abstract: Regenerated cellulose threads and films of improved properties are obtained by extruding viscose having a gamma number of 43 and containing 0.1-0.8 per cent by weight of hydrazine into an aqueous coagulating bath containing at least 30 g/l. of zinc sulphate and 40-65 g/l. of sulphuric acid and then regenerating the cellulose in a second hot aqueous bath, if desired containing sulphuric acid, while stretching the product 80-120 per cent.  The coagulation bath also contains sodium sulphate in the usual amounts and has a temperature of 50-70 DEG  C.  The thread withdrawal speed is preferably 40-60 m/min.
Patent GB-885499-A (GB)
Title: A flexible connector for electric lamps
Inventor: ATKINS JOHN BARNARD
IPC: H01R33/09
Filed: 1958-03-10
Abstract: 885,499. Lamp-holders. NOMA ELECTRIC CO. Ltd. March 10, 1958, No. 28134/61. Divided out of 885,498. Class 38 (1). A holder for cap-less lamps comprises a resilient insulating body 1 having a lamp-receiving cavity 10 at one end of a sleevelike portion 22 provided with a a pair of bores 23 adapted to receive the lamp leads 19, 20 and circuit wires 14, 15 in contacting relationship. Conducting sleeves may be inserted in the bores to enclose the engaged wires. Alternatively, conducting material may be deposited on the walls of the bores. The wires 14, 15 may be secured in the holder by fusing their insulation to the outer end of the body portion 22.