baber/WOPTO huggingface dataset:
Patent GB-731290-A (GB)
Title: Device for the regulation or control of a rotating flow
Inventor: KADOSH MARCEL
IPC: F04D29/68
Filed: 1952-09-25
Abstract: 731,290. Centrifugal compressors; jetpropulsion plant. SOC. NATIONALE D'ETUDE ET DE CONSTRUCTION DE MOTEURS D'AVIATION. Sept. 25, 1952 [Sept. 27, 1951], No. 24100/52. Classes 110 (1) and 110 (3). [Also in Group XXIX] In a centrifugal compressor or jet-propulsion plant, the flow of fluid within a cylindrical chamber having one or more peripheral inlets for the admission of the fluid is regulated by an obstacle, such as a jet of fluid, which deflects the inflowing fluid towards a convex wall. In the compressor shown in Figs. 3 and 6, comprising a centrifugal impeller surrounded by a discharge volute 10 and preceded by an axial-flow inlet wheel 9, a ring of hollow members 12 is disposed in the inlet chamber 6. Each member 12 has two compartments 12a and 12b having discharge nozzles 15a and 15b respectively and connected to circular ducts 16a and 16b respectively. When a valve 18 is in the position shown, air tapped from the volute 10 through a pipe 17 passes to the duct 16a and thence is ejected through each nozzle 15a towards the convex wall 30b of the adjacent member 12 and in a direction opposite to that of rotation of the impeller, whereby prewhirl is imparted to the air entering the inlet 7. Alternatively, the valve 18 can be turned to direct air to the duct 16b, so that it emerges from the nozzles 15b in the direction of rotation of the impeller, thereby lowering the delivery pressure of the compressor to a minimum value. An intermediate value of the delivery pressure is obtained by turning the valve 18 to an intermediate position in which it obturates the connections to both ducts 16a, 16b. The valve shown in Fig. 2 may be used to connect the exhaust pipe of an engine to a turbine. Or, it may be used to connect the air inlet to the combustion chamber of a jet-propulsion engine of the pulse-jet type. The valve comprises a cylindrical chamber 1 connecting ducts 3 and 4, the flow of fluid through the valve being controlled by a jet of fluid which enters the duct 4 through a slot 5 with an inclination away from the chamber 1. Fluid can pass from duct 3 to duct 4 with only a slight loss of pressure. In the opposite direction, however, the fluid is deflected by the jet towards the convex wall 30 as shown, so that it undergoes a whirling movement at a velocity which increases as it approaches the duct 3, whereby it gains kinetic energy at the expense of its pressure energy. The duct 4 may be disposed radially with respect to the chamber 1. Specifications 691,302 and 691,948, [Group XXXIII], are referred to.
Patent GB-468909-A (GB)
Title: Automatic lock nuts
IPC: F16B39/32
Filed: 1936-09-04
Abstract: 468,909. Locking nuts. ROWLEY, H. E. G. (Independent Pneumatic Tool Co.) Sept. 4, 1936, No. 24241. [Class 89 (i)] The washer 19 has a radial tongue 20 entering a longitudinal groove 21 in the bolt 3, and projections 24 to enter recesses 25 in the nut 17. A spring 23, enclosed by a retaining disc 22 keeps the nut and washer in engagement.
Patent GB-424591-A (GB)
Title: Improvements in presses and pressing mechanism
IPC: B30B1/02
Filed: 1933-09-01
Abstract: 424,591. Presses. MASSEY, Ltd., B. & S., and MASSEY, H. F., Steam Hammer Works, William Street, Openshaw, Manchester. Sept. 1, 1933, No. 24250. [Class 69 (ii)] [See also Group V] A hydraulic or mechanical press has two toggle arms c, d, Fig, 1, having their adjacent ends pivoted to a lever e and their other ends pivoted to a stationary member f and the press ram a respectively ; the free end of the lever e may be raised and lowered by a hydraulic piston, a screw, crank or cam, and the arrangement is such that the first part of the lever movement for the operative stroke brings the toggle arms approximately into line causing a quick movement of the press ram, while the last part causes a slow, powerful movement at practically constant pressure, one toggle arm serving as a fulcrum. Means may be provided for adjusting the maximum pressure, and for holding the ram in its pressing position. In a hydraulically-actuated press, a cylinder n is supplied from a pump r<2> under the control of a valve q<1>, q<2>, shown in full lines in the position for lifting the ram a. When the piston m passes a port s, the pressure supply is byepassed, and the rest of the upstroke is effected by a weight g. When the valve q<1>, q<2> is moved into the dotted line position, the piston m and ram a are moved down, the valve being retained in position by a member u engaging under a collar q<4>, until tripped by a tappet w or pressure-actuated plunger, when a spring v or a weight moves the valve into the upstroke position. A crosshead j moves in a guide k, which in a modification, has its lower portion formed as an arc of a circle, a connecting rod then being employed. The maximum pressure is determined by an adjustable valve x. If desired, one cylinder may actuate two sets of levers e and toggle arms connected to the ram near its opposite ends. In a further form of hydraulic press, the valve q<1>, q<2> is prevented from return to its upstroke position by a member 10, Fig. 10, the piston m being then hydraulically locked in its lowest position, the supply liquid being byepassed through a hole in a piston q<5>, and leakage being compensated by a small pump 11. Alternatively, the ram may be held down by a catch moving in above the crosshead j, and removed when desired by hydraulic means. A multiple camactuated press comprises a rotating body 15, Fig. 11, carrying a number of press units; in each unit, the lever e is connected to a member 26 supported by a pivoted arm 23 and having a spring-pressed roller 25 engaging the edge of a fixed cam 14 shaped to effect the opening and closing operations of the press and hold it closed for a period.
Patent GB-699620-A (GB)
Title: Improvements in and relating to the purification of coal gas
IPC: C10K1/10
Filed: 1952-09-27
Abstract: 699,620. Purifying gas. HOLMES & CO., Ltd., W. C., COOPER, C., and CLYNE, O. Sept. 27. 1952, No. 24265/52. Class 55(ii) [Also in Group I] To avoid the deposition of scale caused by using hard water in ammonia washers, the water is treated prior to entering the washer with water that has already been used for washing the gas and which contains ammonia and carbon dioxide. The treatment apparatus consists of a tank 5 containing an axially mounted rising tube 3 within which hard water from a pipe 2a and weak liquor containing fixed ammonia and carbon dioxide from a pipe 7 are mixed, a circulation as indicated by the arrows being produced. Calcium and magnesium carbonates are precipitated during this circulation and eventually settle into a sump to be withdrawn periodically through a valve 9. Clear liquid is withdrawn at 10 and passed to the ammonia washers. Specifications 331,592, [Class 55(ii)], 357,712, 389,653 and 507,029, [both in Group XXVI], are referred to.
Patent GB-1042517-A (GB)
Title: Torque converters
IPC: F16H41/04
Filed: 1963-06-18
Abstract: 1,042,517. Hydrodynamic torque converters. BORG-WARNER CORPORATION. June 18, 1963 [June 25, 1962], No. 24268/63. Heading F2C. A light duty torque converter having input and output shafts 14, 27 extending from the same side of the converter, comprises an impeller 31 fast with a casing 30 rotatably supported by a bearing 38 on the output shaft 27 which is itself supported by needle bearings 28 on a stationary sleeve shaft 24 which carries a reactor 40 and is mounted in a housing wall 16 which is bolted to an engine housing 1 to form a reservoir. A fixed sleeve 60 is mounted in the reactor sleeve 24 to provide inner and outer passages 61, 62, fluid being fed by gravity from the reservoir through passages 22, 25, 62, 50, 54 to the working circuit, and being returned to the reservoir through an impact tube 64 and passages 65, 61, 26, 23 to maintain a constant circulation. Cooling fins may be provided on the impeller casing.
Patent GB-893028-A (GB)
Title: Arched roofs
IPC: F27D1/02
Filed: 1959-07-15
Abstract: 893,028. Furnace roofs. DETRICK CO., M. H. July 15, 1959 [July 25, 1958], No. 24292/59. Classes 51 (1) and 51 (2). A refractory lined furnace including an arched roof and means for supporting the roof comprises transversely spaced abutments in the furnace, a metal supporting framework, beams extending longitudinally of the furnace in spaced relation to each other, and arched channel-shaped elements extending transversely of the furnace in spaced relation to each other, each of the beams intersecting all of the arched elements and being secured together in fixed position at each intersection, the arched roof comprising refractory bricks extending in longitudinally adjacent transversely extending arched rows between the abutments and having means for rigidly securing transversely adjacent bricks in fixed positions relative to the elements and beams, the roof bricks being securely held in arched position and supported relative to each other by the means. Refractory bricks 4, Fig. 1, of an arched furnace roof which is suspended from a supporting framework 1, 2 by adjustable hangers 3 have metallic top plates 5, Fig. 3, to which are welded rods 8 longitudinal of the furnace to provide a backing for the bricks. Channel-shaped elements 11 which conform to the arched upper surface of the roof are welded at 12 to the rods and have a backing of H-shaped beams 13 welded thereto which are then suitably adjustably mounted in place by the hangers. The edges of the roof rest on spaced abutments 10 on the side walls of the furnace and asbestos spacers 14 may be provided between the bricks. In a modification, Figs. 8 to 10 (not shown), certain shorter bricks are utilized which are held in position only by the pressure of the arched roof and without the rods 8.
Patent GB-380581-A (GB)
Title: Improvements in and relating to spray nozzles for liquids
IPC: B05B1/32
Filed: 1931-08-31
Abstract: 380,581. Spray-producers. SIMONCARVES, Ltd., Bird Hall Lane, Cheadle Heath, Cheshire, and ADAMS, V. H., Tygwyn, Mellor, Derbyshire. Aug. 31, 1931, No. 24389. [Class 69 (iii).] A spray nozzle comprises a hollow member 1, Figs. 1 and 2, having a cylindrical extension with a portion 7 of its periphery cut away and threaded either internally or externally to re- 'ceive a cap 4 which more or less covers the opening 7 to regulate the spray. The cap may be provided with a milled head and a flange 6 provided against which it abuts when the slot is closed.
Patent GB-262882-A (GB)
Title: Improvements in electric switches
IPC: H01H23/16
Filed: 1925-10-01
Abstract: 262,882. Wynne, A. C. Oct. 1, 1925. Switches, quick-action. - In a switch having quick-action mechanism involving a spring toggle linkage this mechanism is arranged so that the contact member cannot fall or be forced from its " on " or " off " position except by means of the operating handle, any motion of the contact member other than that produced through the operating handle being prevented by a " locking " or binding up of the switch parts. In the tumbler switch shown in Fig. 4 which is of the type described in Specification 194,968 the operating' member is in two coaxially pivoted parts, a handle a and link d which is pivotally attached to a rod f<1> having its lower shaped extremity sliding in a thimble h mounted on the contact member c pivoted at c<1>. The rod f<1> is surrounded by the quick-action spring f and a small spring e is interposed between the two parts of the operating member. The linkage is so arranged that if any attempt is made to force the contact-member from its off position or if by failure of the spring the contact arm tends to drop from this position, the parts bind mechanically and the contact member is held from displacement by engagement of the link f<1> with the sides of the thimble h as shown in Fig. 5. Similarly the contact member is held in the on position. Instead of the thimble a plain aperture in the contact member may be provided as shown in Fig. 8 in which the invention is shown applied to a knife switch. In the switch shown in Fig. 9 the two portions a, a' of the operating handle are made integral.
Patent GB-773353-A (GB)
Title: Improvements in or connected with graphs, charts, notices and the like
IPC: B43L13/00
Filed: 1955-08-26
Abstract: 773,353. Signs. KUNA, J., and SPITZ, E. Aug. 26, 1955, No. 24543/55. Class 3 (2). An apertured indicating panel 1 is reinforced by metal channelshaped members 5 which are bolted thereto so as not to obscure any of the apertures 2. The panel and pins 3 may be made of flexible synthetic plastic material and the unit 1, 5 may be secured to a plain panel 8.
Patent GB-828721-A (GB)
Title: Rigid polyvinyl halide composition
IPC: C08L25/08
Filed: 1956-08-10
Abstract: A thermoplastic synthetic resin composition comprises (a) 44 to 70% of a polyvinyl halide or a copolymer composed predominantly of a polymerized vinyl halide, (b) 23 to 40% of a resinous copolymer of styrene or a nuclear substituted styrene and a copolymerizable nitrile of an alpha-substituted, beta-unsaturated acid having less than six aliphatic carbon atoms, said copolymer containing from 15 to 40% of said nitrile, and (c) 7 to 16% of a rubbery copolymer of a conjugated diolefinic compound and methyl isopropenyl ketone or acrylonitrile, there being one solubilizing group formed by the nitrile or ketone group for each 11 to 30 carbon atoms of the rubbery copolymer, this number of carbon atoms being calculated by a formula given in the Specification.  Component (a) may be polyvinyl chloride or a copolymer of vinyl chloride and vinylidene chloride or bromide, vinyl acetate or propionate, acrylic acid, methyl or ethyl acrylate, acrylonitrile or methacrylonitrile. Component (b) may be a copolymer of styrene, 3,4-dichlorostyrene or a dimethylstyrene and acrylonitrile, methacrylonitrile, ethacrylonitrile or chloroacrylonitrile.  The conjugated diolefinic compound of component (c) may be butadiene, isoprene, 2,3-dimethyl butadiene, cyanoprene, chloroprene or 2-phenyl butadiene-1,3.
Patent GB-720289-A (GB)
Title: Improvements relating to the control of electrically operated hoists and winders
Inventor: EVANS OWEN THOMAS
IPC: H02P3/22
Filed: 1951-10-22
Abstract: 720,289. Control of A.C. motors. METROPOLITAN-VICKERS ELECTRICAL CO., Ltd. Oct. 21, 1952 [Oct. 22, 1951], No. 24593/51. Class 38 (3) An alternating current induction motor equipment for driving a hoist or the like has provision for dynamic braking in which the load resistance is of metallic form and variable by the operation of a driver's control member to control the braking torque, the control means for the resistance including a plurality of mercury switches rotatably mounted at a speed dependent on the motor speed to control a number of circuits which are operative to prevent reduction of the load resistance to values reducing the braking torque below a maximum irrespectively of the operation of the driver's control member. The mercury switches SRS1, SRS2, SRS3 are mounted on a rotating table which is driven at a speed corresponding to the speed of the rotor of the induction motor so that the mercury in the switches is displaced against gravity bias to open-circuit the switches. Movement of the driver's control member during dynamic braking energizes the operating coil OCDB of the dynamic braking contactor thus supplying the stator of the induction motor with direct current and further movement of the control member energizes operating coils OC1 ... OC10 to operate the contactors to remove resistance from the rotor circuit. The latter sequence of these coils OC8 ... OC10, however, cannot be energized until the motor speed has diminished to values which allow the mercury in the switches SRS1, SRS2, SRS3 to remake the circuits therein; these switches being calibrated to close at differing motor speeds. Thus the closure of these contactors is dependent of the motor speed irrespectively of the position of the control member. In a further embodiment the mercury switches are replaced by a tachometer generator driven by the motor, the output of which sequentially operates a series of relays which control the respective contactor circuits. Specifications 571,700 and 604,819, [both in Group XXX], are referred to.
Patent GB-481365-A (GB)
Title: Improvements in or relating to panels for electrical apparatus
IPC: H02B1/00
Filed: 1936-09-09
Abstract: 481,365. Switchboards. BRITISH THOMSON-HOUSTON CO., Ltd., and TAPPING, G. W. Sept. 9, 1936, No. 24609. [Class 38-(v)] A control panel 1 for electrical apparatus has framework members 7 running along and secured to side walls 3 bent back at right-angles to its main body portion 1, the members 7 each having a flanged portion spaced from and extending in the same plane as the panel, and auxiliary framework members extend between the said flanged portions and are clamped thereto, and the leading-in wires may be secured to the auxiliary members, so avoiding the necessity for drilling holes in the panel to receive fixing cleats. Members 7 are L-shaped runners and the framework comprises three pairs of metal rods 9, to at least two of which are clamped the lead-receiving rods 13, with the clamps 17.
Patent GB-232866-A (GB)
Title: Improvements in chain grate stokers
IPC: F23H11/04
Filed: 1924-10-17
Abstract: 232,866. Winn, S. G., and Gubb, J. R. Oct. 17, 1924. Grates.-The links A of a travelling grate are mounted on rotatable carrying and locking rods C the cross-sectional areas of which have a maximum and a minimum width corresponding with the maximum and minimum width of open-ended slots B formed in the links. Locking-plates D or other means are provided on the ends of pairs of the rods C to prevent the links from becoming disengaged from the rods.
Patent GB-715382-A (GB)
Title: Improvements in or relating to the polymerisation of unsaturated compounds
Inventor: KENDALL CHARLES EDWIN
IPC: C08F4/28
Filed: 1950-10-10
Abstract: Compounds containing a CH2 = C < group are polymerized, e.g. in aqueous media, bulk, or solution, in the presence of a polymerization catalyst consisting of a percompound and an organic compound containing a thiocarbonyl group the carbon atom of which is linked directly to (a) a nitrogen atom and (b) either another nitrogen atom or a carbon atom.  Oxygen is preferably removed from the monomer prior to the addition of the catalyst.  Specified compounds containing a CH2 = C < group are styrene, vinyl naphthalene, vinyl acetate, vinyl and vinylidene halides, acrylonitrile, methacrylonitrile, and the methyl and ethyl esters of acrylic, methacrylic and alphachloroacrylic acids.  Compounds mentioned containing a thiocarbonyl group, which may be in a tautomeric form, are thiourea, N, N1-diethylthiourea, ethylene thiourea, thiouracil, mercaptobenzimidazole, and quinoline-2-thiol.  The percompound may be t-butyl hydroperoxide or benzoyl peroxide.
Patent GB-858765-A (GB)
Title: Improvements in or relating to automotive propulsion systems
Filed: 1957-08-06
Abstract: 858,765. Carburetters. FICHTEL & SACHS A.G. Aug. 6, 1957 [Aug. 4, 1956], No. 24731/57. Class 7(3). [Also in Group XXXI] When the speed of a vehicle engine rises above a predetermined value the clutch is automatically engaged and is prevented from becoming disengaged while the vehicle is travelling at more than a predetermined speed. The clutch is automatically disengaged during gear shifting by a switch which is closed whenever the gear lever is moved to open a solenoid valve between the intake manifold and a suction cylinder for actuating the clutch. When the vehicle is stationary or travelling below the predetermined speed, the clutch remains disengaged until the engine speed is sufficient to propel the vehicle without danger of stalling and to actuate the clutch centrifugally or electromagnetically. Once the vehicle reaches the predetermined speed, a speed-responsive switch 37 is opened to deenergize a solenoid 33 and permit a spring 48 to displace an abutment 46 so that the butterfly valve is prevented from returning to the position in which the engine speed would be low enough to disengage the clutch. The drag of the engine is thus always available for braking purposes. The switch 37 is in series with the ignition switch 36, and in a modification, is in parallel with a switch which is closed whenever the brake pedal is applied so that the full engine drag is available until the clutch disengages. Specification 767,864 is referred to.
Patent GB-1073214-A (GB)
Title: Improvements in electric light lamp holders
IPC: F21S4/00
Filed: 1966-06-03
Abstract: 1,073,214. Electric lamp holders and shades. KAI MEI TSUI, [trading as MING WAH ELECTRIC BULBS FACTORY]. June 3, 1966, No. 24832/66. Heading F4R. A holder 1 for an electric lamp consists of a socket portion 2 to receive a metal socket 3 which may be threaded to hold a screw based lamp and an outer sleeve 5 coaxial with the portion 2 into which a collar 7 on a shade 8 is slipped and retained by friction. The shade may be formed in two separable sections and may be coloured. The device is particularly for use with miniature electric bulbs for decoration.
Patent GB-721507-A (GB)
Title: Improvements in or relating to pit props and the like and their manufacture
IPC: E21D15/38
Filed: 1952-10-06
Abstract: 721,507. Pit props. REPPEL, W. Oct. 6, 1952 [July 28, 1952], No. 24951/52. Class 20(2). A pit prop comprises a two-part angle iron inner prop part 1, 1<SP>1</SP> pressed out against a twopart angle-iron outer prop part 2, 21 by a transverse wedge 8 and vertical drag wedges 7, 71, the re-entrant angles of the angle-irons facing one another. Wedges 7, 7<SP>1</SP> and 8 are wedge-shaped in two directions at right-angles. When the wedge 8 is released springs 10 return the wedges 7, 7<SP>1</SP> to their initial positions in which they are retained with the prop parts 1, 11 by a spring in an aperture 9 in the wedge 8. Pins 11 between wedges 7, 7<SP>1</SP> and springs 10 determine how far the wedges are forced down and screws 12 determine the limit of their upward movement. The two parts 1, 1<SP>1</SP> are loosely connected at the top by rings 17, Fig. 7, and a bolt 16 and may be pressed away from one another against the outer prop by elastic means. A rubber block 20 may be arranged between the rings 17 and a head-plate 14.