baber/WOPTO huggingface dataset:
Patent GB-825088-A (GB)
Title: Improvements in or relating to systems for electromagnetically rapping electrodes of an electrostatic precipitator
IPC: B03C3/76
Filed: 1957-02-01
Abstract: 825,088. Electrostatic precipitators. RESEARCH-COTTRELL Inc. Feb. 1, 1957 [Feb. 3, 1956], No. 3573/57. Class 39(1). [Also in Group XXXV] An electromagnetic vibrator system for an electrostatic precipitator 26<SP>1</SP> comprises an electromagnetic vibrator 9 including an armature 12, a supply circuit including a charging resistor 7, a D.C. source 4, a loud circuit including a blocking condenser 6, a winding 8 for actuating the armature 12 coupled to the supply circuit, and a shunt circuit connected across the load circuit including switching means for periodically reversing the current through the load circuit, whereby to actuate the armature 12, the switching means comprising a normally non-conducting gaseous electron discharge device 10, e.g. a thyratron, and a pulse frequency control circuit 14 coupled thereto through a condenser 13 for rendering the device 10 conducting at a selected frequency. The D.C. source 4 in a full-wave rectifier, the voltage from which is controlled by the tapping 5 on the autotransformer 3 connected through a switch 2 to a low-tension A.C. source. The control grid 11 of the valve 10 is connected through the condenser 13 to the frequency control circuit 14 comprising valves 20 and 21, the frequency of the circuit being adjustable by varying the resistors 16 and 17 to vary the discharge time of the condensers 18 and 19. The resistors 16 and 17 may be mechanically coupled. Preferably the circuit 14 operates at a frequency less than the charging rate of the condenser 6. The pulse output is taken from the cathode of the valve 21. Anode voltage for the valves 20 and 21 is. provided by a full-wave rectifier 23 from a secondary winding 3<SP>1</SP> of the transformer 3 which also provides filament excitation for the various valves through the windings 24 and 26. The variable resistors 16 and 17 may be replaced by resistors of suitable fixed values according to the desired pulse frequency.
Patent GB-556011-A (GB)
Title: Steering of ships
IPC: B63H25/42
Filed: 1943-05-04
Abstract: 556,011. Steering ships by propellers. SPLITTER, B. May 4, 1943, No. 3576/42. [Class 114] A ship is steered by means of propellers D, E inside the transverse limbs F, G of a T-shaped duct situated at the bow below the water line, the longitudinal limb H of the duct providing at full-bore supply of water to the propellers. The drive A, B may include clutches C, and the ends of he duct may be fitted with closure means.
Patent GB-822135-A (GB)
Title: A new type of general cargo carrying ship, the method of loading and the method of operation of the same
Inventor: GOLDMAN JEROME L
IPC: B63B19/12
Filed: 1958-02-04
Abstract: 822,135. Cargo vessels. FRIEDE & GOLDMAN Inc. Feb. 4, 1958, No. 3576/58. Class 113. In a general cargo ship having a hull with at least a portion of the interior thereof subdivided by one or more longitudinal bulkheads 14, 15 in addition to conventional transverse bulkheads to form a plurality of holds 22 disposed both athwartship as well as fore and aft, each hold has a hatch 17 substantially equal in area to the horizontal cross sectional area of the hold, which latter area is substantially constant throughout the depth of the hold. Each hold, is associated with a crane 19 or 20 for raising or lowering cargo directly out of or into any part of the hold. Intermediate decks 24 have hatch covers 25, hinged at 26 to open upwardly, which, in the lowered position act as a floor for cargo to be stowed thereon. Portable beams 27 are removably mounted in the between-decks 24 for accommodating the hinged covers 25. The ship has outer and inner hulls 11, 12 which provide tanks 13 for ballast or cargo.
Patent GB-269858-A (GB)
Title: Improvements relating to dynamo electric machines (generators, motors or rotary converters)
IPC: H02K57/00
Filed: 1927-02-08
Abstract: 269,858. Valla, P. H., and Basset, E. G. April 21, 1926, [Convention date]. Exciting; rotary transformers.-In a continuous-current generator, commutation in the armature circuit is avoided by reversing the current in the field-magnet as the poles pass each other, the armature circuit being interrupted or short-circuited while the reversal is taking place. In the arrangement shown, the field-magnet e rotates in the armature h, the pole faces of one being wider than of the other, so as to afford a period in the rotation when the mutual induction of the two does not appreciably change, during which the field-current is reversed and the armature current interrupted. This interruption may be effected by oscillating switches c, but rotarv interrupters, and means for introducing a high resistance into the armature circuit or shortcircuiting the armature are also described. The armature winding may be excited by an alternating-current exciter, or by a continuous-current battery f, the current being periodically reversed by switches g. It is stated that by providing two windings on the armature the apparatus may be made to provide current at two voltages or to be operated as a rotary converter.
Patent GB-1409402-A (GB)
Title: Vibrating device
IPC: B06B1/18
Filed: 1974-01-25
Abstract: 1409402 Vibrators ILMEG AB 25 Jan 1974 [1 Feb 1973] 03702/74 Heading F2X A vibrator, for use, e.g. in cleaning filters, comprises a single-acting piston 8 movable mounted in a cylinder 1, the piston having the form of a sleeve closed at its upper end by a discof sufficient thickness to give the sleeve a relatively large weight. The cylinder 1 which has an inlet 2 and an outlet 3 through which an hydraulic or pneumatic medium, e.g. compressed air, can be admitted and expelled, respectively, is closed at its lower end by a cap 4 on the inner end surface of which is a cylindrical body 7, while a yoke 5 attached to the cylinder 1 extends over the upper end of the cylinder and carries a damping body 6 made of a suitable resilient or elastic material. The piston disc is provided with recesses corresponding to the shanks of the yoke 5 by which means the piston 8 is guided during its reciprocation. The cylinder 1 or cap 4 is provided with means (not shown) for mechanically connecting the cylinder to a body to be vibrated. At rest, the vibrator is in the position shown in Fig. 2, and upon connecting the inlet 2 to a compressed air line, the air passes through an aperture 9 in the piston 8 which is in line with the inlet 2 and forces the piston 8 upwards. The air supply is thus cut off and the piston 8 comes to rest with an aperture 10 in line with the outlet 3 (Fig. 3, not shown). Air will then flow through the outlet 3 and the piston 8 will descend under the effect of gravity until the aperture 9 is once again in line with the inlet 2, whereupon the cycle is repeated. By means of the cylindrical body 7 an annular slot is formed around the bottom surface of the cap 4 in which the piston 8 slides down during its return movement with the trapped air acting as a cushion. For shaking filter hoses the vibrator can be hung up in a stand supporting the hoses and one of the hoses attached to the cap 4. On account of the positive pressure in the cylinder a small amount of air flows continuously between the cylinder and the piston and since it prevents direct metallic contact between these parts it serves as a type of lubrication. In a modification, the aperture 10 is omitted by making the piston 8 sufficiently short for its open end to be located above the outlet 3 when it is in its uppermost position.
Patent GB-1077325-A (GB)
Title: Line circuit
IPC: H04Q3/00
Filed: 1965-01-29
Abstract: 1,077,325. Automatic exchange equipment. STANDARD TELEPHONES & CABLES Ltd. Jan. 29, 1965 [Jan. 31, 1964], No. 4034/65. Heading H4K. A subscriber's line circuit includes a line relay Lr having two windings connected to the a and b wires of the line as shown in the Figure and a cut-off relay Cr, the two relays being arranged such that depending upon their condition, i.e. operated or released, four states of line condition can be secured namely idle, off hook, line set in the dialling condition and persistent off-hook without dialling. The winding 1 of the line relay acts on a fuse for the b-wire, the a-wire being catered for by the battery fuse. When the line loop is completed by the subscriber, the line relay Lr pulls up open contacts l 1 , l 2  and by means not shown supplies a start signal to the exchange equipment which when a free first selector is found, signals by means of earth on the c-wire. The subsequent operation of the cut-off relay Cr over a path from battery 3, line relay winding 2 and cut-off relay winding I removes the line relay from the line at contacts c 1 , c 2  so setting the line in the dialling condition, but maintains the line relay energized over the above path. If no dialling is received after a predetermined time, earth is removed from the c-wire, but since the cut-off relay has a delayed release, the line relay releases first whereby the cut-off relay is maintained energized through its winding 2, the now closed contact l 2 , its made contact c 3  and the still completed line loop, to signify the persistent off-hook condition.
Patent GB-1130211-A (GB)
Title: Improvements in or relating to patterning mechanisms for warp knitting machines
Inventor: BOLTON WILFRED
IPC: D04B23/00
Filed: 1966-01-28
Abstract: 1,130,211. Knitting machines; pattern chain. SWANWARP MACHINES Ltd. 23 Jan., 1967 [28 Jan., 1966], No. 4049/66. Headings D1C and DIE. A pattern chain for making the selection to produce the patterning on a warp knitting machine as described in Specification 849454, comprises a .series of regularly grooved transverse pins 10 connected at their ends by links, the pattern studs 9 being provided with two recesses 9d, 9e which engage in the grooves in two adjacent pins and are retained thereon by a, spring clip 13 which is secured in grooves 9g in the stud at opposite sides of the groove 9e and at the underside of the pin 10 when the stud is in position. The chain or chains are mounted on sprockets 2 which are regularly advanced from a drive shaft to present the studs to followers in the form of' rollers attached to levers operating cables actuating the mechanism for the yarn manipulation in the warp knitting machine.
Patent GB-229325-A (GB)
Title: Improvements in and relating to governing mechanism for prime movers
IPC: F01D17/00
Filed: 1925-02-13
Abstract: 229,325. British Thomson-Houston Co., Ltd., (Assignees of Dickinson, E. D.). Feb. 13, 1924, [Convention date]. Centrifugal governors; fluid governors; fluid relays.-A pipe in a governing mechanism for a prime mover is supplied with fluid at a constant pressure and is connected to a servomotor actuating the throttle valve, the flow of fluid through a by-pass being controlled by a pilot valve comprising two relatively movable members one of which is controlled by a centrifugal speed govern- or, and the other by the servomotor piston. Fig. 1 shows diagrammatically the device applied to a turbine, the oil tank 9 being shown for convenience in two parts. The pump 25 driven by the turbine shaft 8 supplies oil through a pipe 28, in which the pressure is kept constant by a reliefvalve 29, and through a restricted orifice 30 to the cylinder 18. The piston 17 actuates the throttle valve through a rack and pinion 16. A pipe 33 returns oil to the tank 9 through ports 37 in a sleeve 36, Fig. 4. A sleeve 40 controlling the ports 37 is connected to the governor weights 50 by a plug 41, a spring 43, and a plug 42 having a yoke connected to the lower arm 45. The upper arm 45 has a pivot for a rod 49 bearing against the plug 41. The ports 37 will open on an increase of speed allowing the piston 17 to fall. A follow-up device which then moves the sleeve 36 downwards comprises levers and links 38, 39, 55, 56 connected to the piston-rod 14. To set the governor for various speeds the lever 56 is adjustably connected to the rod 14 by a bracket comprising a frame 60, Fig. 2, a plate 59 and a tubular part 58 secured by a bush 62 between a shoulder 61 and the sleeve 13 carrying the rack. A screw rod 66 carries a non-rotating nut having a yoke 74 on which is pivoted a block 75 which receives the forked end 76 of the lever 56. The screw is actuated through worm gearing by a motor 78. The pump, centrifugal governor and pilot valve mechanism are assembled as a unit on a frame 88. The piston 17 is raised when starting the turbine by a hand-pump 82; a check valve 87 is provided in the pipe 28. Specification 229,321, [Class 110 (iii), Turbines &c.], is referred to.
Patent GB-323398-A (GB)
Title: Improvements in stockings
IPC: A41B11/00
Filed: 1929-02-07
Abstract: 323,398. Goddard, J., and Goddard, M. E. Feb. 7, 1929. Stockings and socks. -To produce a single article to replace stockings worn with tennis over-socks having a turn-over at the ankle, a combined stocking and over-sock is formed by knitting. As shown, the leg portion A is of light material, such as silk, and the foot portion C is of a. warm material, such as wool. A welt B simulating the turnover of an over-sock is produced at the ankle. In one manner of carrying out the construction, the stocking leg is first knitted in fine yarn, such as silk, proceeding as far as the part D. The part D, E is then knitted with wool or the like as plain knitting and is continued as fancy knitting from E to F. From F to D is again formed of plain knitting and after the fabric is looped up at D the knitting is continued for the foot part.
Patent GB-539360-A (GB)
Title: Improvements in or relating to thermionic amplifiers
IPC: H03F1/36
Filed: 1940-03-05
Abstract: 539,360. Valve amplifying circuits. STANDARD TELEPHONES & CABLES, Ltd., ROCHE, A. H., and BUXTON, A. J. March 5, 1940, No. 4092. [Class 40 (v)] Gain control is effected by a potentiometer P1 arranged outside the negative feedback path and means, such as condenser C18, are provided to counteract the effect of the decrease in capacity to ground due to feedback when gain is increased. As shown feedback is applied from a bridge in the output across resistance R19 while networks C16, R25, C17, R27 are provided for phase and frequency correction. Cross talk is reduced by utilizing the rack earth as virtually the sole earth in the amplifier. The cathodes being connected to this earth through condenser C11. Phase shift in the amplifier is reduced by grid resistances R1, R7 and R11.
Patent GB-510888-A (GB)
Title: New anthraquinone compounds
IPC: C09B1/30
Filed: 1938-02-09
Abstract: 510,888. Dyes. HADDOCK, N. H., and IMPERIAL CHEMICAL INDUSTRIES, Ltd. Feb. 9, 1938, No. 4093. Class 2(iii)] Sulphonic acids of anthraquinone derivatives of the formula:- in which X is #-HN.CH#alkyl#<SP> aralkyl> or -HH.CH## aralkyl and R stands for alkylamino, cycloalkylamino or arylamino, are made by reacting 1-chloranthraquinone or a monosubstituted anthraquinone compound having a different replaceable negative substituent instead of the chloro substituent, e.g. a bromine atom, with either an amine of the formula H2N-CH arakyl or an amine of the formula H2N-CH##<aralkyl> monobrominating the resulting compound in 4-position, interacting the bromo-compound with an alkylamine, a cycloalkylamine or an arylamine, and then sulphonating. In examples, (1) alpha-chloranthraquinone is reacted with alphagamma-diphenyl-#-aminopropane to give 1 - dibenzylmethylaminoanthraquinone, which is brominated to give the 4-bromocompound, which is reacted with p-n-butylaniline and sulphonated with concentrated sulphuric acid to give 1-p-n-butylanilino-4- dibenzylmethylaminoanthraquinonesulphonic acid ; alpha#-diphenyl-gamma-aminobutane may replace the alphagamma-diphenyl-#-aminopropane; (2) alphachloranthraquinone is reacted with alpha#-diphenyly-aminopentane to give 1-##<1>-dibenzylisopropylaminoanthraquinone, which is brominated and reacted with p-n-butylaniline to give 1 - ##<1> - dibenzylisopropylamino - 4 - p - - n - butylanilino-anthraquinone, which is sulphonated ; (3) the process of (1) above is repeated, but using p-toluidine or cyclohexylamine instead of p-n-butylaniline. The products dye wool blue or greenish-blue shades. Specification 491,493 is referred to. alphagamma - Diphenyl-#-aminopropane and alpha#-diphenyl-y-aminopentane are made from dibenzylketone and dibenzylacetone respectively by treatment with ammonium formate or formamide and hydrolyzing the resulting formyl compounds.
Patent GB-992340-A (GB)
Title: An ashpan for collecting ash from a solid fuel heating appliance
Inventor: PROTHERO DAVID RHYS
IPC: F24B13/00
Filed: 1962-02-02
Abstract: 992,340. Ashpans. RADIATION Ltd. Dec. 14, 1962 [Feb. 2, 1962], No. 4178/62. Heading F4W. An ashpan is provided with a removable cover which may be secured in position on the ashpan whilst a discharge opening for the disposal of ash is left open. As shown in Fig. 3, the ashpan comprises side walls 3 and 4 joined at the rear by wall 9 and at the front by stiffening bar 2. The open front provides the discharge opening. Side walls 3 and 4 are provided with outwardly-turned flanges 5 and 6, respectively, having block stops 7 and 8, respectively. The ashpan cover, Fig. 2, is provided with channel-shaped guideways 15 and 16 which receive the flanges 5 and 6, respectively, with their associated block stops. An inclined flange 13 on the cover serves to level off the ash as the cover is slid on to the ashpan. On lifting the cover by a handle (not shown), cutaway portions 17 and 18 receive the block stops to secure the cover in position. The channel-shaped guideways may be formed on the ashpan to receive opposite sides of a flat cover which is provided with upwardly-projecting block stops for engagement with cutaway portions in the upper sides of the guideways. In a modified ashpan, Fig. 5 (not shown), the stiffening bar of the ashpan of Fig. 3 is dispensed with and the bottom of the ashpan has an upwardly inclined portion at its forward end.
Patent GB-621776-A (GB)
Title: Improvements in induction heating apparatus
IPC: H05B6/36
Filed: 1948-02-13
Abstract: 621,776. Induction heating. INDUCTION HEATING CORPORATION. Feb. 13, 1948, Nos. 4256 and 4257. Convention dates, Dec. 26, 1942, and April 14, 1943. [Class 39(iii)] An induction heating coil 16 is in the form of a conductor having scalloped formations provided on its inner walls, such that the opposite sides of the conductor form apertures 76, into which a number of work-pieces may be placed. The corresponding protruding portions of the opposite sides of the conductor are separated by small air gaps 77, the apertures being constructed to encircle closely the work-pieces. The reversing portion of the turn is provided with a narrow notch 791 to give a more spaced relationship of field strength to the end work-piece to prevent overheating thereof. A metal cooling fluid conduit 80<SP>1</SP> extends along the outer walls of the conductor, which may be straight or built to follow the inner scalloped formations in which case the conduit bridges the recess thus formed. The legs 72, of the conductor are formed to facilitate direct coupling to the transformer terminals. Two such conductor coils are described in one example, having a common cooling system, the connecting portions of the cooling conduits being of insulating material. Specification 621,725 is referred to.
Patent GB-963846-A (GB)
Title: Manufacture of semi-conductor devices
Inventor: LANGRIDGE ARTHUR
IPC: H01L21/00
Filed: 1961-02-06
Abstract: 963,846. Semi-conductor devices. WESTING- HOUSE BRAKE & SIGNAL CO. Ltd. Jan. 9, 1962 [Feb. 6, 1961], No. 4329/61. Heading H1K. The surface of the junction in a germanium or silicon semi-conductor device is etched by rotating the device (at 200 revs./min.) and directing a jet of etchant, e.g. 3 parts HNO 3  and one part HF, at the surface, immediately after which the surface is washed by flooding it with deionized water. The etching may last for one minute, and the washing process which begins one second before etching finishes may continue for a further minute. A jet of acetone is directed at the junction one second before completion of washing and this is followed after 15 seconds by a jet of xylene. The device may then be coated with a silicone resin.
Patent GB-557756-A (GB)
Title: Improvements in or relating to lubricants for cutting tools
IPC: C10M163/00
Filed: 1942-04-01
Abstract: 557,756. Cutting oil compositions. WAKEFIELD & CO., Ltd., C. C., EVANS. E. A., and HITCHCOCK, N. E. F. April 1, 1942, No. 4368. [Class 91] Cutting oil compositions comprise the soluble oil compositions of Specification 557,755 without the addition of the emulsifying agents. Specifications 129,132, [Class 91], 431,434, 434,056, 468,688, 470,756 and 557,755 are referred to.
Patent GB-175890-A (GB)
Title: Improvements relating to multi-colour block printing devices
IPC: B41M1/20
Filed: 1921-02-07
Abstract: 175,890. Caveney, W. Feb. 7, 1921. Polychromatic and like self-contained colour blocks; platen machines; inking-apparatus.-In multi-colour fabric-printing devices of the kind in which the colours are fed to compartments, over which is stretched a sieve cloth through which the colours pass to the fabric when the latter is pressed on to the sieve bv a pressure block, the division walls a between the compartments e are extended above the sieve cloth, the parts f of the walls above the cloth being firmly united to the parts below, and the sieve cloth b being embedded in the joint so that mixing of the colours is prevented. The division walls may be of celluloid, the parts being united by rendering the celluloid tackv bv means of a solvent. The colours are supplied by means of bottles h, the necks of which are inserted in openings i communicating by conduits g with the compartments e. The fabric to be printed is pressed down between the walls f by ribs j on the pressure block
Patent GB-348187-A (GB)
Title: Improvements in and relating to the coating of surfaces with glass
IPC: E04F21/12
Filed: 1930-02-20
Abstract: 348,187. Coating surfaces with glass. ARNOLD, S., 57, Boileau Road, Ealing, London. Feb. 10, 1930, No. 4420. [Class 56.] In an apparatus for coating surfaces with glass or other vitreous material, the glass in the form of powder or small pieces is impelled by a current of preheated compressed air through a heated chamber in which the glass becomes melted and from which it is sprayed in molten condition on to the surface to be coated. In this way, a wall, ceiling, or ship's hull may be coated with vitreous material. The powdered glass is withdrawn from the bottom of a hopper 1 and is introduced into an upwardlycurved conduit 2 by the action of a jet of preheated compressed air passing through an injector 3, the air being supplied from a suitable preheater by a hose 4. The conduit 2 comprises a tube of refractory material enclosed within a graphite tube 5 which forms an electric resistance heater, the whole being surrounded by a lagging 7 in a rigid envelope 8. The powdered glass becomes melted within the tube and finally issues from a nozzle 9 as a spray which adheres to the surface towards which the nozzle is directed. The surface may be roughened, or treated with a substance such as sodium silicate, in order to form a key for the glass. The furnace may be heated by gas burners if desired.
Patent GB-234180-A (GB)
Title: Improvements relating to brick making machinery
IPC: B28B13/02
Filed: 1924-02-22
Abstract: 234,180. Woods, J. Feb. 23, 1924. Stationary-mould machines.-A semi-dry repressing machine, such as described in Specification 7456/93, is converted into a machine for moulding two bricks simultaneously by fitting the moulds B with a pair of lower plungers C which are raised simultaneously by the cam c. The feed-box d<1> is furnished with an opening sufficient to span the two moulds and with an elongated shield d<4> and is given a longer traverse by altering the throw of the lever d<2> &c. To hold the plungers C raised for sufficient time for removal of the bricks, the cam c is furnished with a nose-pieces c<3>, or is otherwise constructed. The bricks are delivered laterally and may be formed with deep under panels D<2>.