baber/WOPTO huggingface dataset:
Patent GB-392337-A (GB)
Title: Improvements in load-regulators for air or gas compressors
IPC: F04B49/24
Filed: 1932-03-30
Abstract: 392,337. Electromagnets. HOERBIGER, J. R. and HOERBIGER, A., (trading as HOERBIGER & CO.), 51, Hauptstrasse, Mauer, near Vienna. March 30, 1932, No. 9180. Convention date, June 3, 1931. [Class 35.] The suction valves of a compresser are held open during a regulated portion of the compression stroke by levers 7 actuated by electromagnets 1 having coils 2 .. 5, in which either the current is reversed in one half of the coils or different pairs of coils are brought into action to neutralize or change the magnetic polarity. Fig. 2 shows the coils controlled by fixed contacts 13, 14 and contacts 15, 16 on an arm capable of being turned by toothed gears 20, 21 co-operating with a disc 17 carrying a contact 18 and rotated at one-half the angular rate of the compresser drive. In the position shown in full lines, current passes alternately through coils 2, 3 and coils 4, 5, giving a reversed polarity ; in the position shown in dotted lines, there is an intervening period in which current passes through coils 2, 4 ; and by a complete halfturn of the arm the magnet is permanently neutralized. In a modification, four fixed and four moving contacts are employed, controlling two sets of magnet coils for the two stages of a compound compresser. In a further modification, current is passed continuously in one direction through one coil and alternately in opposite directions through another. The disc may be driven at half the speed of the compresser, the contact surfaces extending over a quadrant.
Patent GB-626766-A (GB)
Title: Improvements relating to power driven apparatus for performing drilling, screw driving and like operations
Filed: 1947-04-05
Abstract: 626,766. Drilling, screwing-up, and tapping machines. EVERED & CO., Ltd., and FOULKES, J. T. April 5, 1947, No. 9220. [Class 83 (iii)] A drilling, tapping, or screwing-up machine comprises a support 12 on a base 10, one or more verticallydepending power-driven tools 13 carried by the support, a work-holder 14 slidably mounted relatively to the base, fluid-operated mechanism 16a, 16b for feeding the work-holder 14 upwardly, and a fluid-operated ejector 22 adapted to eject the work from the holder automatically as the latter recedes from the tool or tools. Two tools 13 may be carried from a bridge-member 12g supported on vertical posts 12 on a pedestal 11, which also carries the cylinder 16b of a fluid-pressure ram 16a for raising the work-holder 14 ; the ram 16a is connected to the holder 14 by rods 15 guided in holes in the baseplate 10 of the pedestal 11. The work-pieces 19 (e.g. door knobs) are mounted, as shown in Fig. 6, on horizontal rods of square crosssection on the holder 14 and are arranged to co-operate with the ejector plate 22 which is adapted to be slidden on bolts 21 on the holder 14 against springs 23 in order to eject the work-pieces after treatment. On depression of a foot-lever 38, Fig. 1, a valve 33 is actuated to cause fluid to flow to the pneumatic motors of the tools 13 and, simultaneously, to the cylinder 16b in order to feed the work-holder to the tools. When the operation has been completed, the pedal 38 is released to allow lowering of the holder 14 under the influence of gravity, springs, or fluid-pressure. During the later stage of this movement, a trip arm 27 attached to the holder 14 engages a complementary pivoted arm 26 so as to actuate the valve 25 of the ejector-ram 24a and thereby cause the ejector plate 22 to force the workpieces off the horizontal rods into a delivery shoot 45. Controls 25b, 31a are provided in the pressure line for permitting variation in the speed of travel of the ejector plate 22 and holder 14, respectively. A conveyer 37 is associated with the shoot 45, as described in Specification 626,767, [Group XXX], for carrying away the completed work-pieces, its operation being effected by fluid-pressure under the control of the foot lever 38.
Patent GB-1088513-A (GB)
Title: Improvements in or relating to spooling mechanisms
Inventor: PAPWORTH HAROLD ARTHUR
IPC: B65H59/38
Filed: 1965-03-04
Abstract: 1,088,513. Automatic tension control. W.H.A. ROBERTSON & CO. Ltd. Dec.3O, 1965 [March 4, 1965], No. 9226/65. Heading G3R. A pulley mounted on a pivoted lever forms a loop in material to be wound on a drum and movements of the lever control an electromagnetic friction brake associated with the drum drive to maintain constant tension. As described, wire from a wire drawing machine is wound on to a drum driven by an A. C. motor associated with an electromagnetic clutch and brake. Variations in tension are detected by variations in the position of a pulley urged against the wire by spring tension applied to a lever on which the pulley is mounted. Movements of the lever in one direction or the other from a mean position corresponding to a desired tension, produce electrical signals of one polarity or the other to increase, after amplification, the energization of the clutch or brake to correct the tension automatically. Signals from a tachometer generator operated by the lever are also introduced to improve stability of the control system.
Patent GB-1116423-A (GB)
Title: Improvements in or relating to dispensing containers
IPC: B65D83/14
Filed: 1967-02-28
Abstract: 1,116,423. Pressurized dispensing containers. CONTINENTAL CAN CO., Inc. Feb.28, 1967 [March 7, 1966], No.9388/67. Heading F1R. A dispensing container 5 comprises a bag 7 separating the product P from propellant in the outer container 6. The bag comprises a bellowslike structure of plastics or metal, the concave portions being thicker in cross-section than the outer convex portions so as to prevent radial collapse but permit axial collapse.
Patent GB-691343-A (GB)
Title: Improvements in or relating to windshield wipers
IPC: B60S1/10
Filed: 1951-04-23
Abstract: 691,343. Windscreen cleaners. BENDIXWESTINGHOUSE AUTOMOTIVE AIR BRAKE CO. April 23, 1951 [May 3, 1950], No. 9423/51. Class 138 (i). [Also in Group XXVI] A windscreen wiper comprises a wiper blade actuated by reaction due to air issuing from a jet tube and adapted to oscillate between selected limits, the blade 12, Fig. 2, being secured to a housing 22, 30, pivotally mounted on a shaft 20 secured to a support 11, the jet tube 14 being rotatably carried by the housing and adapted to co-operate with means for reversing the position of the tube with respect to the housing at each of the selected limits. Compressed air is supplied from a pipe 26 through a valve 28 to an axial bore 24 in the shaft 20. The bore 24 connects within the shaft to two angularly disposed passages (only one, 38, being shown) each of which terminates in an enlarged chamber (only one, 42, being shown). One or other of the chambers can connect with a bore 46 in the housing and communicating with the tube 14 and its nozzle 16 and orifice 18. Within the housing the tube 14 carries a pinion 32 in mesh with a rack 52. As the tube moves to the right across the windscreen 10, Fig. 1, the rack 52 engages a stop 50 fixed to the support 11 and the tube is caused to rotate through approximately 180 degrees, the inertia of the parts being sufficient to cause this rotation. The tube will now move to the left of Fig. 1, until the rack 52 engages another fixed stop 48 on the support 11 when the tube is again reversed with respect to the housing so that it may once again travel to the right. When the tube is positioned between the chambers 42 in the shaft 20, air is cut off from the tube but it continues its motion owing to the inertia of the parts. In order to start the wiper when positioned as shown in Fig. 1, a lever 54, Fig. 2, is pulled against a spring 56 in order that an arm 58 will engage between spaced ears 60, 62, Fig. 1, on the upper housing section 22, so that the housing and tube may then be rotated sufficiently to connect the bore 46 with one or other of the chambers in the shaft.
Patent GB-1160027-A (GB)
Title: Improvements in Engine Controls
IPC: F02C9/16
Filed: 1967-02-28
Abstract: 1,160,027. Automatic speed control. GENERAL ELECTRIC CO. Feb. 28, 1967 [June 2, 1966], No.9478/67. Heading G3R. The fuel supply to a gas turbine is automatically controlled in proportion to the difference between signals representing actual and desired thrust up to a predetermined value of error at which a circuit substitutes a larger control signal, computed in dependence on an engine variable, which remains constant until the error is reduced to zero. In Fig. 1, a generator 38 produces a voltage dependent on the speed of the rotor of a turbofan gas turbine 10. This voltage is compared at 40 with a reference voltage, corresponding to a desired speed, derived from a signal generator 36 and selected by a lever 34. Small errors are effective through an amplifier 42 and circuits 44, 46, 48 to control an integrating servo-system 50 which adjusts a fuel supply valve 32 and thereby corrects the error. The speed reference voltage is automatically modified in dependence on the temperature of the air supplied to the engine from fan 18 as measured by a thermocouple 35, so that the setting of lever 34 corresponds to a desired thrust. Error signals up to a predetermined magnitude are transmitted proportionally by circuit 44 but above this value the output of circuit 44 is a maximum in either sense and remains so until the error is reduced to zero. Signals for application to servosystem 50 to produce maximum permissible acceleration or deceleration of the engine are computed at 54, 56 from values of engine speed and temperature. Circuit 46 selects the normal control signal or the maximum permissible acceleration signal whichever is the smaller, and circuit 48 selects the normal control signal or the maximum permissible deceleration signal whichever is the larger so that, whenever the output of circuit 44 is at maximum, engine acceleration or deceleration is the maximum permissible to produce rapid correction.
Patent GB-835178-A (GB)
Title: Improvements in or relating to apparatus for preventing corrosion of metallic surfaces
Inventor: GREAVES BRUCE BOUSFIELD
IPC: C23F13/02
Filed: 1958-03-25
Abstract: 835,178. Preventing corrosion. CUMBERLAND ENGINEERING CO. Ltd. March 25, 1958, No. 9482/58. Class 123(1) An anode used in an impressed current cathodic protection system for preventing internal corrosion of a closed vessel is mounted in an aperture in the vessel wall so that it may be removed and replaced from outside the vessel. The anode assembly consists of an anode 11 mounted on a rod 12, a porcelain insulator 14 being cemented to the rod behind the anode. The insulator 14 has a rearwardly projecting boss 14a which engages in a bore in one end of a hollow mounting block 16, a boss 18a on a second insulator 18 engaging in a bore in the other end of the block. The assembly is axially tensioned by a nut 21 on the threaded outer end of the rod which also forms a terminal for an electrical connection 22. The mounting block is externally threaded to engage in a threaded hole 25 in the vessel wall 26 and has perforations 16f to drain off any liquid leaking thereinto from the vessel.
Patent GB-763368-A (GB)
Title: Improvements relating to the coating of steel strip or the like
Inventor: PEARSON FRANCIS JOHN
IPC: B21B45/06
Filed: 1954-03-31
Abstract: 763,368. Coating metals by spraying. BARROW STEEL WORKS, Ltd. March 24, 1955 [March 31, 1954], No. 9501/54. Class 82(2) [Also in Group XXII] Hot rolled strip or sheet steel is coated with zinc by spraying both faces of the strip or sheet before more than incipient scale can form on them after the sheet or strip emerges from the finishing rolls. The strip or sheet should be at not more than 900‹C when sprayed and at not less than 800‹C. when hot rolled. If desired water-sprays 8 can be used between the finishing rolls 5 and the spraying frame 14 on which spray guns 13 are fixed. Scrapers 10, 11 remove scale prior to the finishing hot-rolling.
Patent GB-366790-A (GB)
Title: Improvements in or relating to steam traps
IPC: F16T1/30
Filed: 1931-03-30
Abstract: 366,790. Steam traps. BUTTERWORTH, J., High Meadow, Grosvenor Road, Swinton, Lancashire. March 30, 1931, No. 9549. [Class 64 (ii).] In a steam trap, an inverted bucket float A is connected to the outlet valve B by a link C and to a fixed axis F by a pair of side links D. When the valve is near the seating, the links are nearly in line so that movement of the valve is slow, and when the valve is further from the seating its movement is more rapid. Air and water enter at L and pass into the float, the air escaping through an adjustable valve M, while the water rises to and escapes through valve B. When steam enters the float, water is expelled and the float rises and then closes valve B. The steam escapes through valve M until the float loses its buoyancy, falls, and opens valve B. The rapidity of action of the trap is adjusted by means of valve M. A passage P is provided for the escape of 'air each time the valve B opens.
Patent GB-1005442-A (GB)
Title: Fluid control valve
Inventor: SCOTT GEORGE WILLIAM PEARSON
IPC: F16K31/12
Filed: 1962-03-13
Abstract: 1,005,442. Valves. SERCK RADIATORS Ltd. March 13, 1963 [March 13, 1962], No. 9549/62. Heading F2V. A control valve comprises a chamber 1 having inlet and outlet ports 2, 3 respectively, a control member 4 extending into the chamber and having a resilient element 5 intermediate its ends which sealingly engages the wall of the chamber whilst allowing the control member to pivot thereon, the outer end of the control member being movable against a resilient loading such as that of a spring 10 by a fluid-pressure actuated device such as a piston and cylinder 11, 12 to cause the pivoting whilst maintaining the sealing engagement of the resilient element 5, and the inner end of the control member carrying a closure member 6 which is engageable with one of the fluid ports 2, 3, the arrangement being such that failure of the fluid pressure acting on the piston 11 allows the spring to close the valve. In the embodiment, the closure member 6 comprises a resilient plug inserted in the control member and engaging the outlet port. The actuating cylinder 12 is in communication with the pressure at the valve inlet 2. The valve may be connected to a piston and cylinder unit 14 for operation thereof.
Patent GB-314141-A (GB)
Title: Improvements in or relating to means for humidifying air
IPC: F24F6/04
Filed: 1928-03-30
Abstract: 314,141. Miller, J. R. March 30, 1928. Vaporizing by heat. -A vessel A suspended from a gas or electric fire or other form of heat radiator by a clamp C by the engagement of non- conducting handles F, F<1> in slots D, D' in the frame arms may contain disinfectants, perfumes or therapeutic liquids to be vaporized. The suspension allows the fire to be tilted without affecting the liquid container.
Patent GB-757326-A (GB)
Title: Improvements in or relating to magnesium base alloys
Inventor: JESSUP ALFRED CLAUDE
IPC: C22C23/04
Filed: 1953-04-09
Abstract: In the production of magnesium-base alloys containing 2-8 per cent Zn, 0,3-2,0 per cent rare earth metals, 0,1-2,0 per cent Mn, a small quantity of Fe is also introduced by means of a pre-alloy of Fe with one or more of Zn and rare earth metals, for example an alloy of Zn with 5-7 per cent Fe.  The melt is heated to about 800 DEG C., stirred and cast.  Be may also be added in the absence of more than 0,1 per cent of Al by weight of the finished alloy.  The Be may be added as a pre-alloy with zinc and/or rare earth metals or may be included in the Fe pre-alloy. The magnesium-base alloy may also include up to 2 per cent Cd and one or more of Th, Pb, Ag, Hg and Sn up to 0,5 per cent each. The alloy may be solution treated and precipitation hardened, thus, in an example, an alloy containing 6 per cent Zn, 0,7 per cent rare earth metal and 0,5 per cent Mn was heated at 440 DEG -450 DEG C. for 16 hours, quenched in water and heated at 150 DEG C. for 50 hours.  Specifications 532,143 and 757,375 are referred to.
Patent GB-846455-A (GB)
Title: Improved hydraulic torque converter and method of making same
IPC: F16H41/28
Filed: 1959-03-20
Abstract: 846,455. Hydraulic torque converters. GENE. RAL MOTORS CORPORATION. March 20, 1959 [May 5, 1958], No. 9740/59. Class 69 (2). An hydraulic torque converter comprises an annular pump 20, Fig. 1, turbine 25 and stator 29 members, one of said members having a plurality of curved blades each of which has progressively smaller widths at each radius from the axis of the converter in planes perpendicular to the axis of the converter from outer to the inner shell, each width from the outer shell to the inner shell being located entirely within the perimeter of the preceding cross-section. The shape of the blades permits the core employed in casting the member having those blades to be cast in a mould and axially withdrawn, in one piece, for use in a further mould for casting the member. The angles of the blades of two converters are listed, one having a lower stall speed than the other. The turbine blades 12 have an inlet angle of + 53 degrees and an outlet angle of - 63 degrees, and in designing the shape of the blades, the inlet and outlet angle lines are drawn to intersect substantially mid-way between lines representing the leading and trailing edges of the blade and a mean camber line is drawn tangentially to successive lines drawn between equally spaced construction points on the inlet and outlet angle lines. The shape 122, Fig. 8, of the blade at the outer shell 26 of the turbine member is arranged about a line 115 perpendicular to the axis 114 of the converter, and the shape 123 of the blade at the inner shell 27 is arranged about a line 124 inclined from the line 115 so that the shape 123 is disposed within the perimeter of the shape 122. The width of the blade at any cross-section increases from the inner shell to the outer shell and each crosssection from the outer shell to the inner shell in planes perpendicular to the axis of the converter falls within the perimeter of the preceding crosssection. A plaster core may then be cast in a mould of the space between the blades and removed in one piece from the mould by a straight axial lift. The cone 45, Fig. 5, is then placed between a drag 76 and cope 77 of a mould and the casting material, such as aluminium, poured through a gate 92 to cast the complete turbine member including the inner and outer shells and the blades in one piece.
Patent GB-624908-A (GB)
Title: Improvements in stop cylinder flat bed printing machines
IPC: B41F21/05
Filed: 1947-04-11
Abstract: 624,908. Feeding sheets to machines. LAKEMAN (PRINTING MACHINERY & APPLIANCES), Ltd., A. H., and GALE, L. A. April 11, 1947, No. 9745. [Classes 100 (i) and 100 (ii)] In a stop cylinder flat bed printing machine correct registration of sheets on the lay board is ensured by a backward movement of the impression cylinder to effect front registration and by a simultaneous operation of the side lay mechanism to effect lateral registration. An impression cylinder 1 carries a roller 6 which is engaged by a catch fork 5 to arrest the anticlockwise rotation of the cylinder driven by a reciprocating rack 2 and a pinion 3. The catch fork 5 is reciprocated with a bracket 7 sliding on the machine frame and is driven by conjugate cams 11 and 12 which engage rollers 9 and 10 on the bracket 7. The cams are provided with slightly rising profiles 15 in place of dwell portions concentric with axis 13 so that a slight backward movement is imparted to the fork 5 to cause a slight clockwise rotation of the cylinder in order that its front lays 22 will register a sheet 17 on the lay board 18. Left- and right-side lays 19 are adjustably mounted on sleeves 33, the left sleeve being fixed to a shaft 20 and the right sleeve being slidably mounted thereon. The shaft 20 carries a bracket 37 which is moved by a spring-loaded pin 38 engaging a cam face 21 integral with the gear 3 to effect movement of the left-side lay 19 to the right and the rightside lay to the left to register the sheets. The right-side lay 19 is moved against a spring 45 by a shaft 39 fixed to the bracket 37 and through a pivoted lever 41. Gripper bars 23 carried by the cylinder are operated by a usual cam roller 26 which engages a cam surface 29.
Patent GB-1245026-A (GB)
Title: Production of a cyanic acid-ammonia gas mixture from urea
IPC: C01C3/20
Filed: 1969-02-24
Abstract: 1,245,026 Cyanic acid-ammonia gas mixture. OSTERREICHISCHE STICKSTOFFWERKE A.G. 24 Feb., 1969 [1 March, 1968], No. 9857/69. Heading C1A. A cyanic acid-ammonia gas mixture of low cyanuric acid content is produced by blowing molten urea into a fluidized bed of inert material while heating the blown urea to a temperature of 300-480 C. in less than 1 second, the fluidized bed being maintained at at least 330 C., and the molten urea being introduced simultaneously with a blowing gas which issues concentrically round the injection point of the urea or issues just before the injection point; having a speed of 40-100 m./s. if issuing at the injection point or a speed of 20-100 m./s. if issued just before the injection point. The mixture of cyanic acid, blowing gas and ammonia which forms in the fluidized bed is continuously withdrawn. The fluidized bed consists of a finely granular inert material, e.g. sand. Ammonia is preferably used as the blowing gas for atomizing the liquid urea and as the carrier gas for maintaining the fluidized bed, though other gases inert to the reagents may be used, e.g. N 2 , CO 2 .
Patent GB-399234-A (GB)
Title: Improvements in or relating to thermostats
IPC: G05D23/12
Filed: 1932-04-06
Abstract: 399,234. Thermostats. G ENE R A L ELECTRIC CO., Ltd., Magnet House, Kingsway, London, and STOPFORD, C. W., c/o General Electric Co., Wembley, Middlesex. April 6, 1932, No. 9858. [Class 64 (ii).] In a thermostatic capsule of the type in which a diaphragm forming one wall of the capsule flexes discontinuously past a neutral position with a snap action, the diaphragm 2 is provided with radial indentations 9, 10 to increase the suddenness of the snap action. The indentations may be on either side of the diaphragm, and the latter in its inwardly flexed position rests on a conical supporting base member.