baber/WOPTO huggingface dataset:
Patent GB-897343-A (GB)
Title: Improvements in or relating to the manufacture of sintered metal articles
Inventor: CLOW COLIN GEORGE
IPC: B22F5/10
Filed: 1959-08-12
Abstract: A sintered metal article containing ducts, holes or voids is produced by compacting metal powder around shaped formers which consist of a core of non ductile high melting point material such as stainless steel and a coating of a volatilisable metal such as cadmium, zinc or indium, preheating the compact at a temperature high enough to volatilise the coating metal, removing the metal cores and finally sintering the compact.  The thickness of the metal coating should be less than 20% of the diameter of the core and the formers should be so positioned in the compact that at least one end of each former is exposed at a face of the compact during the preheating.  In a specific example a mixture of metal powders to form an alloy of 20% Cr, 16% Co, 2,35% Ti, 1,35% Al, 0,07%-0,1% C, 0,05% B and the balance Ni, is pressed around formers of stainless steel 0,061 inch diameter coated with a layer of cadmium 0,005 inch thick at 35 tons per square inch in a floating die assembly.  The cadmium is removed by heating at 650 DEG C. in vacuum and after cooling the steel formers are removed.  The compact is finally sintered in hydrogen or vacuum at 1300 DEG C. to 1325 DEG C. for 20 hours.  Specification 611,466 is referred to.ALSO:A sintered metal article containing ducts, holes or voids is produced by compacting metal powder around shaped formers which consist of a core of non-ductile high melting point material such as stainless steel and a coating of a volatilisable metal such as cadmium, zinc or indium, preheating the compact at a temperature high enough to volatilise the coating metal, removing the metal cores and finally sintering the compact.  The thickness of the metal coating should be less than 20% of the diameter of the core and the formers should be so positioned in the compact that at least one end of each former is exposed at a face of the compact during the preheating.  In a specific example a mixture of metal powders is pressed around formers of stainless steel 0,061 inch diameter coated with a layer of cadmium 0,005 inch thick at 35 tons per square inch in a floating die assembly.  The cadmium is removed by heating at 650 DEG C in vacuum and after cooling the steel formers are removed. Specification 611,466 is referred to.
Patent GB-363369-A (GB)
Title: An improved process and apparatus for the continuous determination of quantities of gas absorbed in liquids
IPC: G01N33/18
Filed: 1930-09-16
Abstract: <PICT:0363369/III/1> The continuous determination of the quantity of gas dissolved in a liquid is effected by passing a constant flow of the liquid into a boiler in which the gas is liberated, separating the gas from the vapour of the liquid and continuously measuring it before it leaves the apparatus.  In the illustrated apparatus the liquid is admitted through a baffleplate 7 to the boiler 5 which is heated by the steam jacket 8, and it overflows at the outlet 13.  A rising pipe 4 open at the top maintains a constant head H.  The boiler contains a cylindrical body 9 which reduces the water space to an annulus.  The evolved gas and vapour are separated from one another in the condensing space 16 which lies between the cylindrical body 10 and the cooling jacket 19.  Condensate is returned by the central passage 40 to the bottom of the boiler. The evolved gas escapes through a capillary tube 25 and its pressure is continuously measured by an indicator attached to the union 31.  The gas after leaving the apparatus may be analysed by successive absorption of its constituents with measurement of the pressure reduction at each absorption stage.
Patent GB-1093160-A (GB)
Title: Direct current chopper circuit
IPC: H02M3/10
Filed: 1966-06-21
Abstract: 1,093,160. Automatic voltage control. WESTINGHOUSE ELECTRIC CORPORATION. June 21, 1966 [July 28, 1965], No. 27696/66. Heading G3R. A circuit arrangement 10 for deriving a constant D. C. voltage at output terminals 22, 24 from a variable D. C. source 16 comprises: a storage capacitor 38 connected to be charged from the source 16; a charging capacitor 52 connected to be charged from the capacitor 38 when a first thyristor 44 is rendered conductive; an output capacitor 20 which provides the output voltage and which is connected to be charged from the capacitor 52 when a second thyristor 94 is rendered conductive; and control means 56 for selectively gating the thyristors 44, 94 to maintain the voltage across the capacitor 20 at a constant value. The control means includes pulse generators 59, 102 which provide the firing pulses for the thyristors, a circuit 66 for sensing the output voltage elsewhere in the system associated with the arrangement 10, and a circuit 63 for sensing overloads; the circuits 59, 70, 66 and 63 are associated with an OR gate 64 and an AND gate 62, and the manner in which the control means 56 operates to maintain the output voltage constant is described with reference to Fig. 2 (not shown). As shown, part of the recharging energy for capacitor 20 is derived directly from the source 16, the capacitors 38 and 20 being connected in series, but in another embodiment the capacitor 20 receives its charge solely by way of capacitor 52 Fig. 4 (not shown); a further embodiment, using one inductor (132) instead of the inductors 50, 92 shown in Fig. 1, is described with reference to Fig. 3 (not shown).
Patent GB-1077103-A (GB)
Title: Anti electrostatic process
Inventor: GLABISCH DIETRICH
IPC: D06M13/328
Filed: 1964-07-06
Abstract: Materials are rendered anti-electrostatic by treating them with salts of (a) acids or acid esters of the formula RY wherein R represents an alkyl, cycloalkyl, aralkyl, aryl or alkaryl radical and Y represents -SO2OH, -OSO2OH, -OPO(OH)2 or -OPO(OH)(OR1) where R1 independently of R, represents an alkyl, cycloalkyl aralkyl, aryl or alkaryl radical, and (b) (i) monoamines of the general formula R1 R2 R3 N wherein R1 is a group of the formula:-(CH2CH2-O)n-CH2CH2-OH wherein n is a number from 1 to 99; R2 is H, alkyl or a group of the above formula, and R3 is H, alkyl or a group of the above formula; or (ii) polyamines containing a grouping (R)2N(CH2CH2 NH)xCH2CH2N(R)2 in which at least one R represents (CH2CH2O)nCH2CH2OH wherein n is a number from 1 to 99 and the other R's are hydrogen or alkyl groups and x is a number from 0 to 3.  The salts may be applied in an amount of 0.1% by weight of the material to be treated.  Examples are given where polyacrylonitrile fibres, knitted goods of polyamide or polyacrylonitrile fibres and a washed fabric of polyacrylonitrile are treated.
Patent GB-688726-A (GB)
Title: Thiolurethanes and quaternary ammonium salts derived therefrom, and processes of producing same
IPC: C07C333/02
Filed: 1950-11-14
Abstract: The invention comprises thiolurethanes of the formula <FORM:0688726/IV (b)/1> wherein R1 and R2 are saturated hydrocarbon radicals, and their quaternary salts of the formula <FORM:0688726/IV (b)/2> wherein R1 and R2 are saturated hydrocarbon radicals, R is an alkyl radical and X is an anion.  The thiolurethanes are prepared by reacting dimethylaminoethylthiol with a carbamyl chloride having two saturated hydrocarbon substituents, attached to the nitrogen atom, and may then be converted to the quaternary compounds by reacting them with an alkyl ester of an inorganic acid.  The dimethylaminoethylthiol is prepared by reacting dimethylaminoethyl chloride with sodium hydrosulphide.  Examples are given of the preparation of (1) dimethylaminoethylthiodibutylurethane; (2) the quaternary salt of (1) with ethyl iodide; (3) the sulphate prepared from (2) by the action of silver sulphate; (4) dimethylaminoethylthioldicyclohexylurethane; (5) the quaternary salt of (4) with ethyl iodide; (6) the sulphate corresponding to (5); (7), (9), (11) and (13) the quaternary salts of (4) with n-propyl iodide, n-butyl iodide, n-amyl iodide, and diethyl sulphate, respectively; (8), (10) and (12) the sulphates obtained by reacting (7), (9) and (11) with silver sulphate; (14) dimethylaminoethylthiodiamylurethane; (15) the quaternary salt of (14) with ethyl iodide; (16) the sulphate obtained from (15) by the action of silver sulphate; and (17) the quaternary salt of (14) with diethyl sulphate.  The compounds have antispasmodic activity.
Patent GB-1222535-A (GB)
Title: Improvements in or relating to stock feeders
Inventor: SCRIBNER ALBERT WILLIS
IPC: B21D43/11
Filed: 1968-06-12
Abstract: 1,222,535. Metal feed apparatus. A. W. SCRIBNER. 12 June, 1968 [23 June, 1967], No. 27853/68. Heading B3W. [Also in Divisions F1 and F2] A stock feeder comprises a frame 10, a feed head 11 mounted on the flame for movement in feeding and indexing directions and carrying a stock gripping means 46 adapted to move between a stock gripping and a stock releasing position, an hydraulic motor actuating the stock gripping means and fed by means of pump 54. a pneumatic motor 60 for actuating the pump, and an air valve for controlling the operation of the pneumatic motor. The feeder preferably has a similar clamping means fixed to the frame operated by a pneumatically actuated hydraulic linkage (see Division F1). The stroke of the stock feeder may be adjusted, fine adjustment being by means of screw 121 and coarse adjustment by moving the clamping means from one set of holes 117 to another. The air valves (see Division F2) are operated by means of a cam actuated by the ram of a press, one cycle of the ram corresponding to one cycle of the stock feeder. A slide 126 carrying a stop 130 which abuts two spring loaded cams 140, 141 acts as a decelerator at each end of the feed heads stroke.
Patent GB-1036390-A (GB)
Title: Lamp changing device
IPC: F21V19/04
Filed: 1965-07-01
Abstract: 1,036,390. Lamp changing apparatus. R. L. SEIDLER. July 1, 1965 [July 6, 1964], No. 27909/65. Heading F4R. A device for replacing a burned-out lamp by a good lamp comprises a lamp carrier 12 (Fig. 1, not shown) rotatably mounted on a base 10, a plurality of flat electrically conductive lamp supports 18 secured at spaced positions around the carrier and in contact with one terminal of each respective lamp, a plurality of resilient metal conductors 17 secured to the carrier and in contact with the other terminal of each respective lamp to hold the lamps resiliently in position in the supports, a spiral spring 19 connected between the base and the carrier for turning the carrier, an escapement mechanism 20, 27 (Fig. 4, not shown) permitting step-bystep rotation of the carrier to bring the lamps in succession to the operative position, an electrical transducer, preferably a solenoid 30, for operating the escapement means when a current pulse is applied thereto, and at least one electrical contact arm 26 mounted on the base for making contact with the lamp support of the lamp in the operative position. The lamps 22 are of the prefocused type formed with rims 23 around their bases, and are seated in keyhole slots 21 in the supports 18 with their rims held in contact with the undersides of the supports by the resilient conductors 17. When a lamp burns out a current sensing circuit actuates the solenoid 30 which rotates the ratchet 27 of the escapement mechanism free of one tooth of the wheel 20 and permits it to engage the following tooth. The spring 19 can then rotate the carrier to bring the next lamp to the operative position. Means are provided for rendering the current sensing circuit inoperative when all the lamps have burned out. Preferably the escapement wheel 20 is made of insulating material and the lamp supports 18 are secured directly thereto. The shaft 13 on which the carrier turns is insulated from the base 10 by means of an insulating hub 14.
Patent GB-519546-A (GB)
Title: Improvements in or relating to coin-freed prepayment mechanisms for meters
IPC: G07F15/02
Filed: 1938-09-26
Abstract: 519,546. Prepayment mechanism for meters. METERS, Ltd., and BROWN, R. T. Sept. 26, 1938, No. 27975. [Class 27] In a coin-freed prepayment mechanism for meters the act of inserting a coin causes canting of a shaft so as to engender a driving connection between a manually-operated handle and the quantity wheel by means of pinions on the shaft, In the construction shown applied to a coin action operated by pennies and shillings there are two coin slits and two lay-shafts 14, one for each kind of coin. Each lay-shaft is mounted. at its rear or left end in a pivoted bearing and in a sliding bearing at the other end. When a penny is inserted it bears against the front end of the corresponding lay-shaft and tilts it upwardly so as to bring pinions 17, 18 thereon into mesh with gear wheels v, 1, thereby coupling these wheels together, thus when the handle s, fixed to a shaft a, turns the wheel v through a friction clutch u, the wheel 1 is turned at the same rate and drives a sun wheel 7 of a first differential gear 7, 8, 12 through a 6:1 reduction gear comprising gears 2, 6 and other gears (not shown). When a shilling is inserted it bears against a disc on the corresponding layshaft 14 and tilts it upwardly so as to bring pinions 17<1>, 18 thereon into mesh respectively with gear wheels 12, v, so that v drives 12 directly, 12 being the planet carrier of the first differential. The second sun wheel 8 of this differential is rigid with a sun wheel 10 of a second differential, the planet carrier of which is the quantity wheel g of the meter, and the other sun wheel of which is driven by the meter mechanism p, q. When the handle s is rotated a projection 20, rigid with the shaft a, engages the end 21 of a lever 22 and slides a plate 24 which is slotted to permit the insertion of a penny or a shilling but which, when moved by the cam closes both coin slits.
Patent GB-1032638-A (GB)
Title: Method and apparatus for supplying pulverized fuel slurry
IPC: F23K1/02
Filed: 1964-07-07
Abstract: 1,032,638. Feeding fuel slurry to furnaces. COMBUSTION ENGINEERING Inc. July 7, 1964 [July 17, 1963], No. 28038/64. Heading F4B. A slurry of pulverized carbonaceous fuel in liquid fuel is fed to a furnace by a pump 38 from a tank 28 where the pulverized fuel from a separator 22 is mixed with fuel oil from a pipe 30 by a rotary mixer 34. The rate of delivery to the burners is controlled in accordance with the furnace load, a by-pass valve 41 enabling the constant speed pump 38 to maintain a constant pressure in the burner supply header. A flow measuring device 50 in the tank outlet controls the amount of raw fuel fed to the pulverizer 12 through a device 14, and the rate of flow of oil to the tank 28 is controlled in accordance with the level of slurry in the tank. The flow of oil to the tank may be controlled by the rate of slurry from the tank. The arrangement may be used to feed a fuel slurry to a blast furnace.
Patent GB-1022675-A (GB)
Title: Improvements in or relating to release equipment for parachutes
Inventor: MITCHELL JOHN ROTHWELL
IPC: B64D17/52
Filed: 1963-07-17
Abstract: 1,022,675. Press studs, controlled fastenings; studs and sockets. G. Q. PARACHUTE CO. Ltd. July 8, 1964 [July 17, 1963], No. 28231/63. Headings E2A and E2B. [Also in Divisions B7 and F2] A release mechanism for a parachute pack comprises an operating device, fastening devices on the parachute pack and a transmission means connecting the operating device with the fastening devices, the operating device being connected to the transmission means through a pulley system so arranged that during the initial movement of the operating device, the operating device moves faster than the'transmission means. In the construction shown the operating device is a handle 11 and the pulley system comprises a casing 22 carrying a carriage 23 (not shown) in which a pulley 17 is freely rotatable and a wire 18 connecting the carriage to the handle. The carriage is freely slidable in the housing and the wire 18 passes round the pulley 17 and the ends of the wire are connected to the handle and to the casing 22 by means of balls 15 and 16 connected to the ends of the wire. The ball 16 is held in a slot in the casing 22 by a breaking tie across the slot. The arrangement provides a mechanical advantage for moving wires 12 and 13 which are connected to the carriage by means of balls 24 and 25 at one end of each and the other end of each being connected to pins 33 which are part of the fastening devices of the parachute pack. Each wire 12 and 13 is covered with a layer of anti-friction material such as PTFE and is contained in a respective sleeve 14; the wire and its covering layer is normally slidable in its sleeve but should the sleeve 14 become damaged so that there is unusual friction between the sleeve and the covering layer then the wire can slide in the covering layer. Each of the fastening devices consists of a conical member 30 provided with a hole 34 to receive the pin 33 and partly protruding into the hole 34 is either a roller, as shown, or a ball to reduce the pull required to withdraw the pin. The operating device instead of being a handle can be a time delay or barometrically operated device.
Patent GB-504347-A (GB)
Title: Improvements in or relating to gland packings
IPC: F16J15/20
Filed: 1937-10-19
Abstract: 504,347. Stuffing-box packing. ARM. STRONG, F. G. G. Oct. 19, 1937, No. 28403. [Glass 122 (v)] One or more strips of wear-resisting material 15 are bent to form a truly cylindrical inner surface for engagement with a shaft, and rubber or other resilient material 19 is applied thereto, whereby radial pressure on the rubber &c. maintains the material 15 in contact with the shaft. The strips may be wound in spiral form or bent into cylindrical form with abutting ends on a mandrel of slightly less diameter than that of the bent strip. The strip is then bound with tape or cord 18 and the rubber &c. vulcanized thereto. The inner part of the strip may remain unvulcanized to provide an oil absorbent portion.
Patent GB-814835-A (GB)
Title: Improvements in or relating to electric junction boxes
Inventor: MARTIN JOHN TIERNEY
IPC: H02G3/18
Filed: 1956-09-17
Abstract: 814,835. Junction-boxes. GENERAL ELECTRIC CO. Ltd. Sept. 17, 1957 [Sept. 17, 1956], No. 28423/56. Class 38 (1). An electric junction-box comprises a baseplate, a cover-plate and four sides, each including a bar member, at least one side being formed with an arch to accommodate a cable duct and the included bar member being arranged to clamp the duct to the box. A base plate 1 has mounted on it four sides 2, 3, 4, 5 held together by screws 6 and is secured in place by screws 9. One or more sides may have an opening 7 which admits the end of a duct 8. The screws 9 when tightened cause the duct 8 to be clamped in position. The duct 8 may also be retained in position by screws passing through holes in the base of the duct into holes 10 in the base-plate. Copper anglepieces 18 may be connected between a duct and a side to ensure earth continuity in the system. One of the sides not of bridge form may have outlet apertures suitable for conduit. The cover consists of a frame 11 having fixing screws 14 and levelling screws 13. A floor trap 12 fits into the frame 11 and has holes 17 into which the levelling screws 13 fit. The floor trap 12 is secured by screws 16 and is recessed to allow for the insertion of floor covering. The junctionbox may be provided with internal separators.
Patent GB-439712-A (GB)
Title: An improved entry arrangement for electric cables to joint boxes and other structures
IPC: H02G15/10
Filed: 1934-10-04
Abstract: 439,712. Mechanical couplings for cable sheathing. BRITISH INSULATED CABLES, Ltd., Prescot, and BLADES, R. W., Lvnwood, Eccleston Park, Prescot, Lancashire. Oct. 4, 1934, No. 28434. [Class 38 (i)] An arrangement for coupling a cable sheath to a joint cover or other fixed structure comprises a flanged member 12 secured to the cable sheath, e.g. by a wiped joint and coupled to the joint cover by a bellows member 10 to allow for movement of the cable. This movement is limited by engagement of a neck 23 of a tubular member 15 secured to the fixed structure with a ring 22 or the flange 11 on the member 12. The conductors of the cables in the arrangement shown have a sliding fit in a sleeve 5 and metal braid 6 is tightly bound to the sleeve and to the conductors and soldered. The joint is surrounded by an impregnated paper tube 8. Liquid insulating material is maintained at the level indicated by the line 24, an air space being left above it to prevent large changes of pressure when the cable moves.
Patent GB-773976-A (GB)
Title: Improvements in or relating to remote indicating apparatus
Inventor: WIKKENHAUSER GUSTAV
IPC: G08C19/38
Filed: 1953-10-15
Abstract: 773,976. Electric follow-up systems. KELVIN & HUGHES, Ltd. Oct. 11, 1954 [Oct. 15, 1953], No. 28473/53. Class 40 (1). [Also in Group XXXVI] A telemetering transmitter for repeating the angular position of a shaft comprises first and second insulating shutters mounted in angularly offset positions on the shaft for rotation between a divided fixed electrode and first and second current input electrodes fixed on opposite sides thereof in a bowl filled with liquid electrolyte. The parts of the divided electrode are provided with means for connection to the stator windings of a selsyn type receiver. In the Fig. 1 embodiment the shutters 17, 18 carried, e.g., by a compass card, are hemicylindrical and are coaxial with cylindrical input electrodes 11, 12 and divided electrode 13, 14, 15. The input electrodes 11, 12 and the rotor winding 28 of a selsyn receiver are connected in parallel across a 40-100 c/s. A.C. supply and electrodes 13, 14, 15 are connected to the starconnector stator windings of the receiver. In the transmitter shown in Fig. 4 the shutters 36, 37 are semicircular and offset 180 degrees, the input electrodes 31, 30 are annular and the divided electrode is constituted by sectors of an annulus, e.g. 32, 34. The parts of the divided electrode form in effect the tapping points of liquid potentiometers the potentials at which vary with the angular position of the shutters in such a way that the resultant field in the receiver rotates in synchronism with the compass card. Specification 693,008 is referred to.
Patent GB-1000222-A (GB)
Title: Vulcanizable copolymers of alkylene oxides
IPC: C08G65/14
Filed: 1961-08-04
Abstract: The invention comprises solid, curable copolymers of a saturated olefin oxide and an unsaturated olefin oxide, the total unsaturated oxide in the monomer mixture being from 1 to 25% by weight, and each of the monomers having from 3 to 20 carbon atoms. Ethylene oxide may be present up to 10 mole per cent based on total saturated oxide. Specified saturated oxides are propylene, butylene and pentylene oxides and epichlorhydrin. Specified unsaturated oxides are butadiene monoxide, allyl glycidyl ether, vinyl cyclohexene monoxide and glycidyl acrylate, methacrylate and cinnamate. Polymerization is effected in the presence of a catalyst, e.g. as described in Specifications 893,274, 937,164, 941,959, 993,047 and 993,410. The conditions should be anhydrous and inhibitors and anti-oxidants may be included. The examples describe the copolymerization of propylene oxide with butadiene monoxide and with alkyl glycidyl ether using as catalysts (a) a mixture of aluminium isopropoxide and zinc chloride and (b) potassium hydroxide, and the curing of the copolymers. Specification 893,275 also is referred to.