baber/WOPTO huggingface dataset:
Patent GB-684115-A (GB)
Title: Improved means for mounting roll film spools in photographic cameras
IPC: G03B17/30
Filed: 1950-09-29
Abstract: 684,115. Photographic roll film cameras. HEIDECKE, R., (trading as FRANKE & HEIDECKE). Sept. 29, 1950 [Oct.. 29, 1949], No. 23905/50. Class 98 (i). In a roll film camera having a pair of aligned trunnions 13, 17, one of which, 13, is connected to a driving shaft 3 and is keyed for insertion into the key hole of the spool 4, the said driving trunnion 13 is connected with its driving shaft by a universal joint 8 ... 12, either the said driving trunnion alone or said driving shaft and trunnion being resiliently mounted for movement in the axial direction so as to permit the spool to be swung about the universal joint into and out of engagement with the other trunnion 17. The trunnion 17 preferably comprises a short cylindrical member and the driving trunnion is axially movable through a distance not less than the length of the trunnion 17. As shown, the driving trunnion is formed with a fork 16 engaging a bar 15 formed in the spool and the shaft 3 is driven through a friction coupling 7 from the camera film winding means driving the gear 5, a ratchet wheel 6 engaged by a pawl (not shown) preventing reverse winding.
Patent GB-1361694-A (GB)
Title: Semi-rotary pumps for pumping wet concrete
IPC: F04C13/00
Filed: 1972-05-22
Abstract: 1361694 Rotary positive-displacement pumps ALPEGGIO INVESTIMENTO S A 22 May 1972 [24 May 1971] 23919/72 Heading F1F In a pump for wet concrete-mixture displacement of the mixture from an inlet opening 2 through a chamber 3 around a fixed body 7 to a discharge opening 10 is effected by a rotor 9 oscillating through 180 degrees, the flow into and out of the chamber being controlled by a baffle 5 oscillating synchronously with the rotor. The mixture enters the opening 2 from a hopper 1. The rotor and baffle may be driven by hydraulic jacks, Fig. 3 (not shown). A second embodiment, Figs. 4 and 5 (not shown), differs largely in that baffle oscillates about an axis perpendicular to the oscillation axis of the rotor.
Patent GB-260732-A (GB)
Title: Improvements in frictional reduction gear
IPC: F16H13/06
Filed: 1925-09-25
Abstract: 260,732. Flinn, H. V. Sept. 25, 1925. Variable-speed gearing.-Planetary reducing- gearing comprising at least one friction gear pair is adapted to yield variation in velocity ratio by the axial movement of the planet gears. As applied to a wireless tuning set, the planet-carrier J is attached to a knob H which is depressed or raised to vary the speed at which a spindle G can be turned from the knob. One sun gear A is fixed. In the form shown in Fig. 2, the gear A is toothed and the teeth of its mating planet pinion M slide while in mesh as the knob H is depressed. The other planet pinion N is conical and gears with a wheel B fast on the spindle G, which wheel B has an elastic rim Q which accommodates itself to the different positions of the cone N. The pair N, B, of Fig. 2 may be replaced by a pair of flexible friction gears shown in Fig. 3. In a form shown in Fig. 1, the pair M, A is frictional and comprises a disc engaging between two equal flanged discs C, D. The driven wheel B comprises opposed flanged discs E, F which are not equal. As the carrier J is moved axially, planet disc N bears against the discs E, F in a changing manner so that the speed of the wheel B changes. An indication is afforded by a pointer Z, Figs. 2 and 2A, on the knob H. As the knob slides, a lever U engaging a fixed shaft T pivots so as to turn a screw X attached to the pointer Z.
Patent GB-971706-A (GB)
Title: Apparatus for continuous measurement of iron losses in a ferromagnetic strip
IPC: G01R33/12
Filed: 1961-07-03
Abstract: 971,706. Determining magnetic properties. W.H.SCHLIEKER,[trading as WALZWERK NEVIGES WILLY H. SCHLIEKER & CO. ]. July 3, 1961 [July 2, 1960], No. 23999/61. Heading G1N. In a system in which the iron losses in a steel sheet or band 11, Fig. 1, passed through a magnetising winding 8 are periodically measured by a wattful current meter connected to a second winding 9 arranged concentrically with the winding 8. The A.C. voltage G1 applied to the winding 8 is regulated automatically in dependence on the thickness of the sheet through the intermediary of the measuring device 16 in order to obtain constant induction in the sheet independent of thickness. The device 16 is adjustable in the direction of movement of the sheet in accordance with the speed of travel of the sheet and may be located within the windings 8, 9, the arrangement being such that the part of the sheet at which the thickness is measured is correctly located within the winding at the moment of measurement. Supply G1 is regulated in accordance with the thickness through a moving coil device 20, Fig. 3, the spindle of which controls the spindle of two potentiometers 27a, 27b, the former of which serves to regulate the voltage applied to winding 8 whilst the latter maintains constant the voltage applied to winding 43 of the meter. Each potentiometer is provided with a contact 28 which is brought periodically into contact with the potentiometer by a magnet 31. The travelling sheet 11 is tested periodically and each test is initiated by a time switch and controlled by a cyclically operated chain of relays. When the first relay of the chain is pulled up it locks and energizes magnet 31 to close contacts 28. A slowacting relay is also operated to disconnect from the instrument 20 a further potentiometer (not shown) the purpose of which is to maintain the pointer 22 and the potentiometer wipers at a predetermined position during the interval between successive tests. The loss meter may provide recorded information; a record sheet being driven synchronously with the metal sheet. The device may be arranged to sort the sheets according to their iron loss values.
Patent GB-242410-A (GB)
Title: Improvements relating to pipe couplings
IPC: F16L37/244
Filed: 1924-10-10
Abstract: 242,410. Le Clair, L, J., Brackenbury, A. G., and Westinghouse Brake & Saxby Signal Co., Ltd. Oct. 10, 1924. Couplings, disconnectible. -A coupling member for railway brake &c. hose couplings is formed of separate elements 2, 7 by drop forging or otherwise, these elements being subsequently welded together. The looking elements 3, may also be formed separate from the ring element 2 and afterwards welded thereto. In modifications, the element 7 forms a butt joint with the element 2, or it may pass completely through the said element.
Patent GB-706100-A (GB)
Title: Improvements in or relating to pattern wheels for knitting machines
Inventor: SHORTLAND ARTHUR
IPC: D04B15/76
Filed: 1950-10-02
Abstract: 706,100. Knitting-machines. MELLOR, BROMLEY & CO., Ltd. Sept. 20, 1951 [Oct. 2, 1950], No. 24033/50. Class 74 (2) A pattern or design wheel for a knitting- machine, particularly a circular machine, is provided with plain and selector bits both forms of which are adapted to engage butts on the needles, jacks or like needle actuating instruments, so as to cause the wheel to rotate, the selector bits only, however, having laterally extending foot portions for effecting elevation of the needles or instruments thereby providing needle selection according to the design required. The wheel 1, which is disposed at an angle to the needle bed, is provided with grooves or tricks 6 in which are secured the bits 12, 13 by a clamping disc 14 bearing on their upper edges. Each bit has a plain shank and a depending end portion 12b, 13b which engages in an annular groove 7 to retain the bit in position. The operative end 12d of the plain bit may be bevelled to ensure gearing with the butts on the needles or instruments. The operative end of the selector bit 13 has its lower edge 13e inwardly turned so that as the end engages a needle butt the edge 13e is positioned beneath the butt and causes the needle or instrument to be raised. In addition an accordian wheel 23 may be secured to the wheel 1 so that accordian fabric may be produced when the wheel is positioned to produce miss stitches. Alternatively the wheel may be positioned to provide tuck stitches and to permit this variation a bracket having slots 17, 18 at two levels is provided and in either of which the spindle supporting the wheel may be secured. Adjusting means for positioning the wheel near to the needle bed is also provided.
Patent GB-626818-A (GB)
Title: Mounting of turbine stators
IPC: F01D25/24
Filed: 1947-08-30
Abstract: 626,818. Gas turbines. ARMSTRONG SIDDELEY MOTORS, Ltd., CLARK, T., and FEATONBY, J. Aug. 30,1947, No. 24048. [Class 110 (iii)] In a gas turbine plant, the turbine stator 11 is connected to the supporting structure 12 by a circular arrangement of strips 14 which are flexible in radial but not circumferential directions. The strips may be laminated as at 14a, 14b. The outturned ends 19 are clamped between similarly shaped plates 20. The ends 15 may be bent inwards and bolted to a flange on the turbine stator.
Patent GB-497163-A (GB)
Title: Improvements in and relating to safety switching devices for aerodrome and like boundary lights
IPC: B64F1/20
Filed: 1937-09-03
Abstract: 497,163. Switches retained set. CHANCE BROS. & CO., Ltd., and HALLETT, L. B. H. Sept. 3, 1937, No. 24091. [Class 38(v)] An aerodrome boundary light comprises a lamp b mounted on a metal tube a fixed at its lower end to a ground plate p which covers a box g containing a transformer r for supplying current to the lamp b. Current passes from the transforme to a fixed insulated conductor e, through a conductor d which is spring- urged away from e, but is normally held in contact with it by a spring-urged conductor c, thence to the lamp, the tubular post serving as a return conductor. The post a is weakened by an annular groove i so that if an aircraft collides with the lamp the post breaks at i. Circuit is then broken between d and e, leaving no live parts exposed. Also flange k on conductor e closes aperture in bushing g and prevents the entry of moisture.
Patent GB-388801-A (GB)
Title: Improvements in and relating to mercury vapour valves
IPC: H02M7/51
Filed: 1931-08-27
Abstract: 388,801. Converting ; metallic-vapour apparatus. AKT.-GES. BROWN, BOVERI, ET CIE, Baden, Switzerland. Aug. 27, 1931, No. 24101. Convention date, Sept. 12, 1930. [Class 38 (ii).] In an arrangement for extinguishing the arc in metallic-vapour apparatus by connecting a condenser 11 between the main cathode 4 and an auxiliary cathode 5 so that a discharge from the main cathode to the auxiliary cathode occurs thus extinguishing the cathodic spot on the former, the discharge is facilitated by continuously maintaining a cathodic spot on the auxiliary cathode by means of an auxiliary anode 17 energized by a generator 18. The invention is shown as applied to interrupting the arc of a multi-anode grid-controlled valve 3 operating as in inverter, interruption being effected in response to increased current on the D.C. side resulting from short-circuit conditions on the A.C. side. The condenser circuit is adapted to be completed at electrodes 12, 13 by an auxiliary arc 7 normally maintained between electrodes 13, 14 by a generator 15. The auxiliary arc is controlled by the resultant field of opposed series and shunt coils 6, 16 associated with the D.C. circuit, the shunt coil normally predominating. Excess current causes the series coil to predominate thus reversing the field and causing the arc 7 to transfer to the electrodes 12, 13 thus completing the condenser circuit and causing extinction of the arc in the main discharge device 3. Where no provision is made for pre-charging the condenser, the discharge current between the main and auxiliary cathodes 4, 5 is due solely to the normal difference in potential between them. Provision may be made, however, for increasing this difference in potential by pre-charging the condenser. This is effected by a transformer 20 operating to charge the condenser through a valve 19 normally maintained conductive by a positive potential on its grid derived from the left half of a battery 21. When the condenser circuit is completed by the arc 7 to effect extinction of the arc in the main discharge device 3, closure of a switch 23 causes the grid of the valve 19 to receive a blocking potential from the right half of the battery 21 thus preventing the circuit containing the main and auxiliary cathodes 4, 5 being maintained through the valve 19. Specification 389,849 is referred to.
Patent GB-1334404-A (GB)
Title: Protective device against fault currents in an electric supply line
IPC: H02H3/33
Filed: 1971-04-19
Abstract: 1334404 Protective arrangements SOC D'APPAREILLAGE ELECTRIQUE SAPAREL 19 April 1971 [13 March 1970] 24113/71 Heading H2K An earth leakage protective arrangement comprises a core-balance transformer 2, a differential amplifier 11 having one input N1 connected to the secondary winding of the transformer, and an electromagnetic relay having its coil 5 connected to the output of the amplifier. The other input I of the amplifier 11 is connected to the output by two negative feedback loops one being a low-pass filter formed by resistors 12 . . . 14 and capacitors 15, 16 and the other being a high pass filter 17, 18. A low-pass filter 25 ... 29 is connected between the amplifier 11 and the relay coil 5. The amplifier is supplied from the protected network by a rectifier bridge 19 and Zener diodes 21, 20.
Patent GB-154033-A (GB)
Title: Improvements in or relating to files with expansible pockets
IPC: B42F7/08
Filed: 1919-10-02
Abstract: 154,033. Baker, G. H., and Walker & Co., J. Oct. 2, 1919. Covers; racks and the like.-Index files, of the kind having parallel expanding pockets formed with dividing leaves and expansible folds at the ends and back, are provided with a cover having one or more folds or hinges so arranged that the back and at least one of the sides may lie fiat on a table, the pockets when expanded resting on the back and one side of the cover, the file itself being attached at one end of the cover only. The cover comprises a back a, sides b, c hinged at d and e, the dividing leaves being provided with expansible folds g, h to form pockets. The side c may have a short flap k with spring clip for locking to the cover, or it may have a long flap to be wound round the cover. A strap may be provided to encircle the cover. The file may be constructed to close in the manner of a box.
Patent GB-518134-A (GB)
Title: Improvements in or relating to apparatus for the rotary spinning of artificial threads
IPC: D01D5/18
Filed: 1938-08-16
Abstract: 518,134. Artificial silk. BERNDT, K. Aug. 16, 1938, Nos. 24170 and 24171. Convention dates, Aug. 16, 1937, and June 16, 1938. [Class 2 (ii)] Apparatus for rotary spinning of artificial threads in a closed precipitation vessel completely filled with liquid precipitating medium circulating through the vessel comprises means for rotating the spinning head and if desired also the precipitating vessel, two tubes one within the other extending upwardly from the crown of the vessel, means for supplying precipitating liquid to the annular conduit formed by the space between the tubes and causing it to flow downwardly into the precipitation vessel, means for leading the extruded threads upwardly through the inner tube together with the precipitating liquid, and means for adjusting the flow pressure of the liquid in the annular conduit in accordance with the rate of rotation of the vessel and/orthe spinning head. A supply vessel may be disposed so as to maintain a pressure head on the liquid in the annular conduit and it may be adjustable in position so as to regulate the pressure. The pressure may be adjusted automatically by means of a centrifugal pump, rotary screw, or similar device. As shown in Fig. 1, a vessel 1 contains rotating precipitating liquid. The cover 2 is provided with a tube 4 with openings 5 and a bored stopper 6. An inner tube 8 extends upwardly from stopper 6. The annular space 9 communicates with chamber 10 containing liquid under pressure. The tube 8 fits into an outflow vessel 14 with outflow opening 20. The chamber 10 may be connected to funnels adjustable in height so as to regulate the static pressure of the liquid. As shown in Fig. 4, a conveyer wheel 44 for the precipitating liquid is provided. As the outer and inner tubes rotate at the same speed the conveyer blades are connected to both tubes. The liquid circulates in the direction of the arrow 45. In another construction only the inner tube rotates with the spinning head, the outer tube and precipitation vessel being stationary. Helical pumping blades, fixed to the inner tube only, are provided. The fixed tube 51, Fig. 4, fitting over the tube 43 prevents liquid which enters the receiver 40 from being directly drawn again into the annular conduit. In another construction where both inner and outer tubes rotate, the short fixed tube 51 is provided with a stationary screw arranged in the annular space between the rotating tubes. As shown in Fig. 8, the inner rotating tube 66 carries the conveyer wheel 67 of a centrifugal pump. The receiver, 63, corresponding to receiver 40 of Fig. 4, has an opening which is closed by a neck-piece 69, having at its lower end a rubber seal 70. An inlet guide-wheel 73 is arranged within the opening of the receiver 63. This wheel has a tube 75 which prevents liquid which flows out of the precipitation vessel from being directly forced again by the pump through the outer tube 65.
Patent GB-1517477-A (GB)
Title: Lining material
IPC: B29C31/00
Filed: 1976-06-11
Abstract: 1517477 Air permeable lining material INTERNATIONAL BF GOODRICH. EUROPE BV 11 June 1976 [11 June 1975] 24191/76 Headings B5A and B5B A film 4 of a plastics material, e.g. PVC or polyurethane is applied as a plastisol gel or solution by a feeding device 5 in a layer of uniform thickness on an endless carrier 3 provided with thin oblique projections or needles 8 extending at an angle of 15-25 degrees relative to the surface of the carrier. The sheet formed is passed through a heating tunnel 6 and taken off on roll 7. In forming the sheet the projections extend at least up to the upper surface of the layer of plastics material and the material so formed contains diagonal passages connecting both surfaces thereof, the ratio of the diameter and the length of said passages being between 1 : 10 to 1 : 50. The sheet is 0À1-0À5 mm. thick and the passages have a diameter of 0À03 mm. Needles on carrier 3 may be in rows 3 mm. apart with 2 mm. between each row.
Patent GB-599118-A (GB)
Title: Improvements in or relating to lithographic drawing processes
IPC: B41C1/10
Filed: 1945-09-19
Abstract: 599,118. Printing-surfaces. BRISTOL AEROPLANE CO., Ltd., and BARNETT, H. G. Sept. 19, 1945, No. 24237. [Class 100 (ii)] [Also in Group XV] Designs are drawn on a lithographic printing plate, e.g., a framed aluminium plate, in an acid free ink comprising shellac dissolved in an alkaline solution. A suitable ink (see Group XV) consists of water, shellac, liquid ammonia and aniline or a water soluble dye. Such ink can be erased for making corrections, by glacial acetic acid. The plate may be cleaned by means of trichlorethelene or carbon tetrachloride which does not affect the inked lines.
Patent GB-171202-A (GB)
Title: Improvements in or connected with friction clutch driving mechanism of rotary helix extrusion apparatus
IPC: B65G23/00
Filed: 1920-08-20
Abstract: 171,202. Jackson, Ltd., J. G., and Jackson, J. G. Aug. 20, 1920. Controlling clutches -A disc friction clutch for rotary-helix extru sion apparatus for pow. dered, granular, plastic &c. substances, is nor. mally closed by a spring and opened intermit tently by cam mecha nism. As shown, a driving-shaft A, carry. ing the driving clutch disc B, is aligned with the helix shaft D tc which is slidablv keved the driven clutch disc C. An arm E', pivoted at E, is acted upon by a spring G tending tc move the disc C intc engagement with the disc B, but is rocked against the action of the spring by adjustable cams R on a disc P geared to the shaft A, which cams engage a tooth L on a branch E<2>.
Patent GB-900957-A (GB)
Title: Nodular iron manufacture
IPC: C21C1/08
Filed: 1960-07-12
Abstract: A method of adding magnesium to molten cast iron comprises placing a layer of magnesium metal in a ladle, covering the magnesium layer with a layer of solid ferrous metal, and then pouring in the molten cast iron.  The magnesium, in the form of clippings, may be sandwiched between two layers of steel punchings which may be at room temperature when added to the ladle. Specification 900,956 is referred to.  Reference has been directed by the Comptroller to Specification 630,070.
Patent GB-817157-A (GB)
Title: Improved seed sowing machine
IPC: A01C7/04
Filed: 1956-08-08
Abstract: 817,157. Seed sowing machines. HIGGINS, W. H., HIGGINS, K. M., and HIGGINS, B. L. Aug. 8, 1956 [Aug. 9, 1955], No. 24247/56. Class 6(1). A machine for sowing seeds encased in a strip of material 16 comprises a roller 3 provided with a flanged ring 7 for forming a furrow, a spring urged wheel 15 for pressing the strip into the furrow, twin scrapers 18 to move the earth to cover the strip and a roller 4 for compacting the earth over the strip. As shown tines 6 which may be replaced by a circular coulter are mounted in front of the roller. The strip 16 is mounted on a spool 8 provided with a pawl and ratchet device 11, 12. The clicking of the ratchet is used as a signal to indicate that the spool is rotating. A tank or hopper 19 provided with a shoot 20 may be fitted to deliver fertiliser or a strip disintegrating chemical. In place of the spool 8, the strip may be folded and placed on a magazine arranged to permit the folded strip to be drawn therefrom. The flanged ring 7 is removable and may be replaced by a ring of a different size. A cutting device may be incorporated to sever the strip at the end of each row. The machine may be constructed as a multiple row unit.
Patent GB-835231-A (GB)
Title: Improvements relating to means for measuring gas leakages
Inventor: CLEGG BRIAN GEORGE HERBERT
IPC: G01M3/28
Filed: 1955-08-25
Abstract: 835,231. Testing fluid leakage. SOUTHERN GAS BOARD. July 24, 1956 [Aug. 25, 1955], No. 24441/55. Class 106 (2). [Also in Group XXVIII] Apparatus for measuring leakage in a system containing fluid comprises a pressure gauge 1, means 5 manually operable to inject fluid into the system at a rate to maintain the pressure constant, and a timing device (not shown) for determining the rate and period of the injection. A pressure gauge 1 is connected by a tube 4 to the system, and by a tube 6 to the injecting means 5. This latter comprises a cylinder 5 containing a piston held against a screwed rod 9 by a spring. The rod 9 screws into the cover of the cylinder, turning on a ball to prevent rotation of the piston when the handle 10 is turned. In use the number of turns necessary in a given time to keep the pressure in the system constant gives an indication of the rate of leakage. The timing device may be of the type which gives an audible signal after a given period.
Patent GB-1188882-A (GB)
Title: Variable Resistor.
IPC: H04R23/00
Filed: 1968-05-22
Abstract: 1,188,882. Semi-conductor devices. MATSUSHITA ELECTRIC INDUSTRIAL CO. Ltd. 22 May, 1968 [31 May, 1967], No. 24492/68. Heading H1K. A variable resistor, whose resistivity is varied by the application of pressure, comprises a semi-conductor body 7, having an ohmic electrode and a non-ohmic electrode, mounted on a support 11 in a container so that pressure can be applied to it via needle 8 operated by knob 9. The semi-conductor body is doped with a deep level forming impurity. The resistivity is inversely proportional to the pressure applied.