baber/WOPTO huggingface dataset:
Patent GB-516613-A (GB)
Title: Improvements in synchronising and speed-control devices
IPC: H02P5/50
Filed: 1938-05-11
Abstract: 516,613. Automatic control systems. ROLLSROYCE, Ltd., NEWTON BROS. (DERBY), Ltd., NEWTON, F., and ROTOL AIRSCREWS, Ltd. May 11, 1938, No.24069/39. Divided out of 515,934. [Class 38 (iv)] Speed.-In an arrangement for maintaining synchronism between two rotary machines, two alternators, one driven by each rotary machine, supply the stator windings of a single dynamo-electric machine so as to produce two rotating magnetic fields tending to rotate the rotor, which has a closed winding, at a speed corresponding to the difference between the speeds of the two rotating fields, means actuated by the rotor tending to restore synchronism. Fig. 1 shows one form of the dynamo-electric machine in which two stator windings 16 and 17 are each connected to a three-phase alternator. One alternator may be driven by the master engine of a multi-engined aeroplane and the other by a follower engine which is required to run synchronously with the master. The stator windings produce two electromagnetic fields rotating in opposite directions, one at a speed proportional to that of the master engine and the other at a speed proportional to that of the follower engine. A two-element rotor 20 has a winding common to both elements and so wound that any difference in speed between the two rotating fields produces a torque on the rotor, in one direction or the other, which, through the medium of a threaded portion 26 of the rotor shaft, transmits lateral movement to a nut 29 restrained against rotation and fitted to one end of a lever 31 pivoted at 32. The other end of lever 31 engages; by a ball-joint 34, with the end of a valve-rod 35 which may control the supply and discharge of liquid for a hydraulic motor adjusting the pitch of the blades of an airscrew, driven by the follower engine, in such a manner as to tend to bring that engine into synchronism with the master. Flanges 27 and 28 at the ends of the threaded portion of the rotor shaft temporarily arrest the motion of nut 29 to allow for the time-delay between the movement of the nut and the consequent change in blade pitch where there is a wide discrepancy between the engine speeds. Two spiral springs 70, 71, wound in opposite directions restore the rotor to a mean position when the alternators are inoperative. In a modification Fig. 4 (not shown) the threaded portion doesnot extend up to the flanges, so that for heavy torques the nut passes out of engagement with the thread. Fig. 3 is the winding diagram for the rotor, each element of which is two-pole with five slots per pole, the winding on one element being reversed with respect to that on the other to form closed loops which are connected in common to endrings. In a modification, Fig. 5 (not shown) the dynamo-electric machine has a single stator with two windings the absence of slip-rings or brushes eliminating the risk of fire as in the arrangement of Fig. 1.
Patent GB-801287-A (GB)
Title: Combined movable-sieve and fixed-sieve round jig for ore concentration
IPC: B03B5/18
Filed: 1956-08-04
Abstract: 801,287. Jigs. ONG, L. T. Aug. 4, 1956, No. 24098/56. Class 82(2) A jig for concentrating ores comprises a tank d with a concentrate-discharge h in its conical bottom part, and a slightly raised partition p which divides its upper part into an annular compartment b for a fixed sieve and a central compartment a for a sieve which is vertically reciprocated by means of a water-supplying pipe c carrying a small baffle plate k. The movable sieve may be slightly conical and its bed is preferably of larger grain-size and higher specific gravity than that of the fixed sieve. The ore is fed in by a cone e and light components overflow into a launder f.
Patent GB-481160-A (GB)
Title: Improvements in or relating to worm conveyors and the like
IPC: B01F15/02
Filed: 1936-09-03
Abstract: 481,160. Screw-conveyers. JOHNSON & CO.. Ltd., S., and JOHNSON, T. A. S. (Seelemann & Sohne, G. A.) Sept. 3, 1936, No. 24111. [Class 78 (i)] In apparatus for feeding different materials in proportionate quantities to a mixing machine and comprising a screw of varying capacity working beneath the compartments of a bin, the screw 1 tapers uniformly and rides in a depression 5 in the bottom of the hopper, the wall of the depression fitting closely to the worm. In modified forms the taper and pitch of the worm may both vary. Specifications 435,215, [Group II], and 473,564 are referred to.
Patent GB-1307465-A (GB)
Title: Transformer with means for conveying electric energy to rotary current-conducting devices
IPC: B23K11/06
Filed: 1971-04-19
Abstract: 1307465 Transformers; cables INSTITUT ELEKTROSVARKI IMENI E O PATONA AKADEMII NAUK UKRAINSKOI SSR 19 April 1971 [6 March 1970] 24122/71 Headings H1A and HIT [Also in Division B3] A transformer for use in a seam welding machine comprises a stationary core 1 containing two apertures 2, on which is wound a primary winding 3 and a single turn secondary winding 4 which extends through the apertures in the core. This secondary winding is constructed of flexible material such that the turn is capable of twist rotating about a curved axis, 6, which coincides with the longitudinal centre line of the material of which the turn is formed, each end of the turn being rigidly connected to one of two rotating current-carrying devices 7, 8 respectively, driven by a gear mechanism 10 such that the devices rotate in opposite senses. The flexible secondary turn may be in the form of a stranded flexible cable (Fig. 1) or comprise rigid shaft portions coinciding with the apertures in the core, which are coupled by a stranded flexible cable (Figs. 2 and 3, not shown). The flexible cable may be in the form of a flexible insulating pipe 17 containing a conducting liquid 18. The flexible turn of any of the above arrangements may be reinforced by a flexible shaft 19 intended to transmit the torque from one current carrying device to the other. Furthermore the flexible turn may be mounted inside a rotationary guide duct, 5, of an insulating material. Internal cooling means may be employed with the flexible turns of the embodiments of Figs. 1, 2 and 3. Where the turn is mounted inside a guide duct 5, the duct may be filled with anti-friction grease in order to reduce friction resistance as the turn 4 rotates.
Patent GB-902947-A (GB)
Title: Two-stroke cycle internal combustion engines
IPC: F01M11/08
Filed: 1959-07-14
Abstract: 902,947. Lubricating. AMERICAN BRAKE SHOE CO. July 14, 1959 [July 16, 1958], No. 24129/59. Class 12 (3). [Also in Group XXVII] In a two-stroke engine, a rotary oil filter 64, 74, Fig. 1, which includes an oil separator 63 consisting of fifteen or more annularly-convoluted layers of 60 to 200 mesh metal screen with random aperture distribution, is operatively interposed between the crank-case and the cylinder. The operation of the engine is generally similar to that described in Specification 733,743. Each rotary separator comprises an imperforate disc 74, Fig. 2, secured by bolts to the crank-shaft or crank arm 43 or 44 to which is attached a housing 65, 75, having a plurality of apertures 79, formed to carry a seal 77 and to enclose a lubricant separation barrier 81 of copper, stainless steel or monel metal mesh. During crank-case compression fuel mixture is forced through the barriers 71 and 81, through the bearings 22 and 34 into the transfer passages. Residual oil particles and unvaporized fuel assist bearing lubrication. The bearings 21, 22 may be ball, roller or sleeve bearings. The oil level control arrangement for the wall 83 is by an arrangement of inlet and outlet check valves 96, 97.
Patent GB-338182-A (GB)
Title: A process for the manufacture and production of new dyestuffs of the anthraquinone-acridone series
IPC: C09B1/34
Filed: 1929-08-07
Abstract: 338,182. Johnson, J. Y., (I. G. Farbenindustrie Akt.-Ges.). Aug. 7, 1929. Halogenated anthraquinone-2.1-benzacridones. -4-Bz-3-4-5-tetrahalogenanthraquinone - 2 - 1 - benzacridones are prepared by treating anthraquinone-2-1-benzacridones halogenated at least in the Bz4-position and having the Bz2-position free from halogen, with halogenating agents in the presence of organic solvents. When using starting materials having the 4-position free only chlorinating agents are to be employed since bromine enters the 4-position only in small amounts. Or the same bodies may be obtained by condensing 1-4-dihalogenanthraquinone-2-carboxylic acids or their esters with 2-3-4-trihalogenanilines, acridone ring closure then being effected according to known methods. In examples (1) 1.4-dichloroanthraquinone-2-carobxylic acid benzyl ester is heated with 2-3-4-trichloraniline, the product saponified and ring-closed; (2) Bz-3-4-5-trichloranthraquinone-2.1 - benzacridone (prepared by condensation of 1-chloranthraquinone-2-carboxylic acid benzyl ester with 2-3-4- trichloraniline, saponification and ring closure) is treated in nitrobenzene and in presence of a little iodine with sulphuryl chloride; (3) Bz4- chloroanthraquinone-2-1-benzacridone (prepared by condensing 1-chloranthraquinone with 4-chlor- 2-aminobenzoic acid, followed by ring closure) is treated in nitrobenzene in presence of a little iodine with sulphuryl chloride. These products dye brilliant red shades which are distinguished by their high brilliancy; they also differ from the tetrachloro derivatives obtainable according to Specincations 5534/13 and 295,770 by being converted into Bz-3-4-5-trichloranthraquinone-2-1- benzacridones on treatment with diethylaniline and a little copper. Specifications 894/11, 327,758, 338,216, and 338,217, also are referred to.
Patent GB-1039027-A (GB)
Title: Fluid valves
IPC: F16K1/42
Filed: 1963-06-18
Abstract: 1,039,027. Valves. DIAMOND POWER SPECIALTY CORPORATION. June 18, 1963 [Oct. 4, 1962], No. 24182/63. Heading F2V. In a poppet valve for controlling the flow of steam to a soot blower, improved seating of the valve head and a lower temperature thereof is obtained by means of an annular, flared flange portion which terminates in a contact face for the seat and is shaped to deflect under pressure. Valve head 30 is seated by spring 39 upon a hardened surface 21 of valve seat member 20 at a flat contact face 73 of the flange 70 which has reversely curved root and neck portions 71 and 72 respectively (Fig. 3, not shown) which enable radial displacement of the flange 70 to take place under pressure by deflection about lines A-A and B-B. The head 30 is secured upon stem 31 by a nut 32 providing lost motion and clearances 32b which enable the head 30 to seat out of strict alignment. The valve stem 31 is slidable within a guide 34 under the action of rotated lever 43. A pressure control disc 50 is adjustable upon the stem guide 34 to vary the annular valve orifice and is locked in position by a pin 53. The contact face 73 of the flange 70 may be located either radially inwardly or at the outer periphery (Fig. 4, not shown) of the valve head 30.
Patent GB-906300-A (GB)
Title: Sewing machines
IPC: D05B33/00
Filed: 1960-07-12
Abstract: 906,300. Sewing-machines. SINGER MANUFACTURING CO. July 12, 1960 [July 24, 1959], No. 24232/60. Class 112. A sewing unit for sewing the buttonholes on a garment such as the panel of a shirt comprises a buttonhole sewing-machine 10 with work clamp 11 and a travelling work-holder 50 provided with workgripping clamps 51 in which the shirt panel is held. The workholder is successively indexed along by means described below to present the edge of the shirt to the work clamp 11 of the sewing- machine which sews a buttonhole after each work-holder movement. A chain 40 has one end secured to an indexing carriage 15, passes over sprocket-wheels 41, 42, 43 and is secured to the work-holder. The other end passes over sprocketwheels 44, 45, and 46 and is attached to a counterweight 47. The carriage 15 is slidable in vertical rails 16 to provide the indexing movement. A chain 17 connected to the carriage is secured at one end to a sprocket-wheel 18 ; the other end of the chain is counterweighted. Depression of a start-button by an operator starts the sewing- machine. Automatic stopping of the machine trips a one-revolution clutch on the cam-shaft 27, the cam follower 25 moving the sprocketwheel 18, by way of the link 23, over-running clutch 22 and electric clutch 21, to move the carriage 15 down one indexing increment, i.e. the distance between buttonholes. The sewing- machine is then automatically restarted and its work clamp 11 moves to stitch a buttonhole. This alternate sewing and indexing continue until the predetermined number of operations have been completed, the electric clutch 21 being then released for the counterweight to return the carriage 15 to its starting position. The chain 40 is guided in a channel 57 (see Fig. 7) attached to the carrier plate 56 on which the work-holder slides. The channel and the plate are attached to the work clamp 11 and partake, with the work-holder, of the movements of that clamp as the buttonhole is sewn, the sprockets 43, 44 being axially movable on their shafts 62 to allow this. To prevent this axial movement of sprockets 43, 44 from causing movement of the holder in the work indexing direction the sprockets 42, 45 are each mounted on the ends of the arms 70 of bell-crank levers pivoted at 71 to the fixed structure. The bifurcated ends of the other arms 73 of the levers engage inclined rods 74, the levers thus rocking, as the holder moves transversely, to move the sprockets 42, 45 towards or away from sprockets 43, 44 to compensate for the axial shift of the latter. Fixed work gripper opening members 100 engage the work-gripping clamps 51 at the end of the series of indexing movements of the work-holder to open the clamps and allow the completed shirt panel to fall into a trough 82. The lead clamp 51 may be provided with an edge guide to orientate the panel in the clamps. Specification 849,209 is referred to.
Patent GB-1278397-A (GB)
Title: Control of incidence of radiation
IPC: E06B9/24
Filed: 1971-04-19
Abstract: 1278397 Control of incidence of solar radiation BETEILIGUNGSAG FUR HAUSTECHNIK 19 April 1971 [16 March 1970] 24245/71 Heading A1E Means for controlling the incidence of solar radiation on crops comprises two co-extensive screens 3, 4 suspended over the ground from arches 1 having complementary transparent and opaque patterns 3A, 3B, 4A, 4B. When the screens are brought together, for example by drawing air from the space between them by suction means, the opaque strips on one coincide with the transparent strips on the other to produce an opaque combination. As they are moved apart it becomes possible for radiation, both direct and diffused, to pass through; the amount passing being dependent on the degree of separation. In a modified form of control, sheet 4 may be moved toward sheet 3 by supplying air to a space between 4 and a third, transparent, sheet 5. In a further embodiment, Fig. 2 (not shown), two sheets (20, 21) having the complementary patterns may be fixed together at intervals, for example by welding at (22) as a series of pockets forming a unit which may be joined with other such units to cover any desired area.
Patent GB-1287868-A (GB)
IPC: B41J15/18
Filed: 1971-04-19
Abstract: 1287868 Stacking form-folded webs BOWE BOHLER & WEBER KG 19 April 1971 [20 May 1970] 24368/71 Heading B8R A web 1, e.g. of continuous stationery, having transverse folds 6 is fed into a zig-zag folded pile 5 over a guide plate 3 provided with perforations (Figs. 3 to 7, not shown) communicating with an air chamber 12 associated with a blower 13. In operation, the air current flowing between the guide plate 3 and the web 1 helps to ensure the formation of a correctly folded pile, and the Specification describes this action with reference to Figs. 8 and 9 (not shown).
Patent GB-402207-A (GB)
Title: Improvements in evacuated electric discharge vessels
IPC: H01J19/28
Filed: 1932-09-01
Abstract: 402,207. Thermionic valves. M-O VALVE CO., Ltd., Marconi House, Strand, London, and SMITHELLS, C. J., c/o General Electric Co., Wembley, Middlesex. Sept. 1, 1932, No. 24386. [Class 39 (i).] In electric discharge vessels of the type wherein the anode. forms part of the envelope, an anode 1 of flattened or non - circular formation is supported against collapse under external pressure by being gripped in a cooling-sheath 2 in such a way that an increase in its maximum dimension is prevented. The sheath may be mounted upon the anode by heating it and shrinking it on, so that it exerts pressure only in the neighbourhood of the maximum dimension of the anode, and throughout the remainder of its periphery is only at a short distance, about 1 mil, from the anode. The sheath may be made of aluminium, as thin as is consistent with the requisite rigidity, and may be provided with longitudinal cooling-fins 3.
Patent GB-677018-A (GB)
Title: Improvements in or relating to arc lamp equipments
IPC: H05B31/00
Filed: 1949-09-22
Abstract: 677,018. Arc lamps. GENERAL ELECTRIC CO., Ltd., COOPER, B. S., and HAWKINS, F. S. Sept. 22, 1950 [Sept. 22, 1949], No. 24387/49. Class 39 (i). In order to maintain constant the intensity of the cyanogen spectrum from an arc-lamp, e.g. in fading tests, a gas of constant composition, such as oxygen 3 per cent, carbon monoxide 31 per cent, and nitrogen 66 per cent or nitrogen of commercial purity, is fed into the lamp by a tube 11, having a ring 12 encircling an electrode 5. The lamp is substantially enclosed in a housing comprising a well-glass 1 and cast iron plate 2, the gas being allowed to escape between bush 3 and electrode 4 and between the seal between the wall glass 1 and plate 2, the largest of the gaps not exceeding 0.01 inch. The gas may be fed into the housing at approximately one cubit foot per hour.
Patent GB-906365-A (GB)
Title: Solid electrolytic capacitors
Inventor: GIRLING DOUGLAS STACEY
IPC: H01G9/00
Filed: 1961-07-06
Abstract: 906,365. Capacitors. STANDARD TELEPHONES & CABLES Ltd. July 6, 1961, No. 24529/61. Drawings to Specification. Class 37. A solid electrolytic capacitor assembly comprising an e.g. sintered valve metal anode having an anodized oxide layer superimposed by a semi-conductive material e.g. manganese dioxide, and a metallic cathode layer, is vacuum dried at elevated temperature, vacuum impregnated with a silicone insulating liquid, e.g. dimethyl siloxane, dried at an elevated temperature, cooled, and sealed into a case. The impregnant may be a thermosetting polymerising resin e.g. an epoxy resin which is also used to encase the assembly, or alternatively an insulating oil or a natural or synthetic wax.
Patent GB-533922-A (GB)
Title: Improvements in or relating to a method of and apparatus for the degumming of ramie fibres
IPC: D01C1/02
Filed: 1939-08-25
Abstract: 533,922. Refining cellulosic materials; dyeing &c. apparatus. SABNER, M. Aug. 25, 1939, No. 24554. [Classes 2 (ii) add 15 (i)] Ramie fibres are boiled in a solution containing caustic alkali to effect the removal of gum, the solution is drained off, the fibres are squeezed by direct pressure, they are then washed with water, and the treatment is repeated several times, preferably in the same container. The treatment may be effected in apparatus comprising a container having a perforated bottom with a device for closing the perforations, or a perforated partition separated a short distance from the bottom with a controlled drainage device for the space below the partition, means for introducing steam into the container, and a closure for the top of the container which is received within the walls of the container and which may be moved to compress the contents of the container. The ramie fibres are placed in the container and the caustic soda or potash solution is introduced. Steam is then admitted to bring the contents to boiling point. At the end of the treatment the solution is drained off and the fibres are squeezed by direct pressure, washed, drained, and squeezed, and the treatment is repeated. As shown in Fig. 1, the apparatus comprises a container 1 made, e.g. of teak. It has a perforated bottom 2 with holes 3. A perforated plate 4 with hand-grip 5 may be moved to cover or uncover the holes 3. A hard rubber pad 6 rests on the bottom and a second hard rubber pad 7 is disposed between the bottom and plate 4, both pads being perforated. Inlet holes 11 are provided in a side wall of the container for the introduction of steam. The closure 12 for the top is flat and preferably has a rubber pad 13 on its under surface. It slides .within the walls of the container, and hydraulic or other means are provided for pressing the closure on to the contents of the container. During the alkali treatment the holes 3 are closed and superheated steam is introduced through holes 11 until the solution boils. At the end of the treatment the holes 3 are uncovered, the liquid is drained off, and the contents are squeezed by the closure 12. The fibres which have been treated by the process may be combed and then spun in a dry condition. Specifications 533,912 and 533,949 are referred to.
Patent GB-599594-A (GB)
Title: Improvements in means for storing liquid fuel
IPC: B64D37/22
Filed: 1945-09-21
Abstract: 599,594. Tanks. SNYDER, M. C. Sept. 21, 1945, No. 24561. [Class 69 (i)] A liquid storage tank comprises a horizontal chamber 10 to one or both ends of which is connected a side chamber 11, 12. In each side chamber is situated a baffle having a horizontal section 21 across the upper part of the side chamber and connected at the inner end to the chamber 10 whilst at the outer end of the section 21 there is a dependent vertical portion 22 so that a passage 27 is left between the tank wall and the portion 22. Fuel inlets 15 are provided to the chamber 10, the fuel then passing to each side chamber through a check valve 28 so that in the event of the tank overturning, the majority of the fuel cannot escape. Pipes 16 and 17 provide means for withdrawing the fuel and, with the inlets 15 and air vent 20, are situated adjacent the front face of the tank.
Patent GB-781281-A (GB)
Title: Improvements in or relating to signal generating assemblies
IPC: B23Q35/12
Filed: 1953-01-26
Abstract: 781,281. Photo-electric machine tool control. NEERGAARD, L. E. DE. Jan. 26, 1953, No. 24566/55. Divided out of 780,419. Drawings to Specification. Class 40 (3). [Also in Groups XXII and XXXVIII] The subject-matter of this Specification is substantially the same as that described in Specification 781,280, but the Claims differ.
Patent GB-1073584-A (GB)
Title: A game simulating a computer
IPC: A63F3/04
Filed: 1964-06-12
Abstract: 1,073,584. A game simulating a computer. S. I. WARMAN. June 12, 1964, No. 24595/64. Heading A6H. Apparatus for playing a game for two or more players comprises a board representing a digital computer and pieces representing signals applied thereto, the board having markings, 1, 2 &c., see Fig. la, indicating a plurality of fields each representative of a computer logic element, each field having marked thereon a group of peripheral regions, 1G1, 2G1 &c., representing gates for the logic element, the board having means co-operating with said pieces for fixing detachably at least two pieces in positions representing gate inputs, a, b &c. in each peripheral region and bearing programme indicia, e.g. field numbers in the central region, on each field indicative of another field or fields on which pieces are to be placed when in the game the state of a logic element represented by the field has been changed by the inputs of a peripheral region thereof being filled by pieces. The pieces may be pegs and the cooperating means may be holes.