baber/WOPTO huggingface dataset:
Patent GB-1026291-A (GB)
Title: Improvements in or relating to gas/liquid contacting
Inventor: SKLORZ WILHELM
IPC: B01F25/64
Filed: 1964-02-12
Abstract: 1,026,291. Gas-liquid contact apparatus. F J. GATTYS, [trading as FRANZ-JOSEF GATTYS INGENIEURBUERO]. Feb. 12, 1964, No. 5816/64. Heading B1R. Gas-liquid contact apparatus comprises at least one section in which, during its passage through the section, the gas is caused to undergo a continuous closed circulatory movement in contact with the liquid, by means of a rotary atomizer, blower blades and suitable deflecting means. In Fig. 1 the base 1 of each column section is formed with a central liquid well 3; an upwardly-projecting pipe socket 4 in the centre of the well encloses the vertical column shaft 6 on which within each section is mounted an atomizer 7 consisting of lower end 7a dipping into the well and upper vane-shaped portion 7b with liquid and gas outlets 8. Below 7b are mounted blower blades 12 with gas inlet openings 13, the blades being supported by wall 11 attached to the atomizer. In operation liquid drawn from 3 sprays through 8 against the column jacket, flows down into 3, excess passing through openings 5, and is recirculated, while simultaneously gas flowing up through annular passage 9 passes through atomizer 7 and openings 8 and continues both upwards to the next section and also in a circulating bath defined by the column jacket and blower blades.
Patent GB-977111-A (GB)
Title: A device for unf olding and locking the stabilising fins of projectiles
IPC: F42B10/20
Filed: 1961-02-16
Abstract: 977,111. Self-propelled projectiles. LES FORGES DE ZEEBRUGGE S.A. Feb. 16, 1961 [April 28, 1960], No. 5842/61. Heading F3A. The pivoted stabilizing fins of a self-propelled projectile which, before launching, are held folded down towards the longitudinal axis of the projectile, are unfolded when the projectile leaves the bore of the launching device and are locked in position by the combination at the rear end of the engine tube 1 of a tuyere 15 capable of directing the propulsion gases under pressure on to the surfaces of the fins 5 turned towards the longitudinal axis A-B and pawls 10 adapted to be interposed in the return paths of the unfolded.fins. In the embodiment shown, the tuyere 15 is screwed into a ring 3 which is itself screwed into the rear end of the engine tube 1, the ring 3 serving as a support for a pivot 8 of each fin 5 and a pivot 9 of each pawl 10. As shown in Fig. 3, each pawl 10 is rotated under the action of a spring 13 as the adjacent fin 5 is unfolded until it engages in a groove 7 in the nose 6 of the fin 5 to lock the latter in its unfolded position. The fins 5 and pawls 10 are pivoted between pairs of tongues 4 projecting from the end face of the ring 3. Specification 976,483 is referred to.
Patent GB-905248-A (GB)
Title: Improvements in wrapping mechanism
Inventor: COATES JOHN WILLIAM
IPC: B65B57/10
Filed: 1960-02-19
Abstract: 905,248. Wrapping. FORGROVE MACHINERY CO. Ltd. Feb. 17, 1961 [Feb. 19, 1960], No. 5970/60. Class 94(1). A flight conveyer for feeding successive articles 5 to a loading station at 14 is combined with means for feeding wrapping paper 6 into a trapped position between each article 5 and a retractable support 7 at the loading station, means being provided for coupling each flight 1, as the loading station is approached, to a pusher 3 which pushes the support in advance of the article 5 carried by the flight 1, sensing means 10 being provided to prevent coupling when no article is present. As an article passes under the trip 10, Fig. 4, the rod 16 is withdrawn thus releasing articles 11 and rocker 12 to allow the spring 20 to force the hook 2 into position for engaging the flight 1 (see Fig. 1). After the flight has carried the pusher 3 towards the loading station. fixed cams 9 uncouple the flight and pusher, the pin 8 having lifted rocker 12 to the position shown in Fig. 1. If no further article is passing under the finger 10, the latches 11 will be in their holding position and will re-engage the rocker 12 as the pusher is returned by springs 13; otherwise the hooks 2 will remain in their " down " position.
Patent GB-848731-A (GB)
Title: Improvements in or relating to sheet feeding devices for platen printing presses
IPC: B41F1/28
Filed: 1958-02-25
Abstract: 848,731. Feeding sheets; platen printing machines. SCHNELLPRESSENFABRIK AKTIENGESELLSCHAFT HEIDELBERG. Feb. 25, 1958 [Dec. 24, 1957], No. 5991/58. Classes 100(1) and 100(2) In a sheet feeding apparatus for a platen printing press wherein a vertically reciprocating suction bar separates sheets from the top of a pile and an intermittently rotating gripper bar transfers the separated sheets to the platen, control means is provided whereby the source of suction to the suction separator bar cannot be cut off, so that the separated sheets are still held in contact with the suction bar during their transfer to the platen by the gripper bar, and are thus kept taut. The control means facilitates a more speedy feeding of flimsy sheets which would be creased when fed at high speed in a press where suction to the suction separator bar is cut off immediately the sheets are gripped by the gripper bar. As shown, the press 1 has an oscillating platen 2 and a vertical forme 9, and a pile of sheets 5 is supported by a table 4 mounted in a frame bracket 3. Sheets are separated from the pile by a vertically reciprocating suction bar 6 provided with nozzles 7, and they are transferred to the platen 2 by a rotating gripper 8 mounted thereon. The suction bar 6 is reciprocated by a cam-controlled lever 10, which also reciprocates a control member 11, Fig. 3, having a roller 17 thereon which runs over a cam face 18 on the press to control the opening and closing of a flap valve 15. When the valve 15 is closed, suction is established at the suction bar 6 through a pipe 12, a passage 24 in the member 11, and a pipe 13. When the valve 15 is open, normally the. passage 24 is open to atmosphere through a passage 14 in the member 11, and thus the suction bar 6 is rendered inoperative : this occurs, when feeding normal sheets, when the gripper 8 takes a sheet from the suction bar. When feeding flimsy sheets, a slide 23 can be moved manually to close the passage 14 to render the valve 15 inoperative, in which case suction is always established at the suction bar 6. A further slide 20 can be moved manually to open the passage 24 to atmosphere through a passage 19 to render the suction oar 6 inoperative. The control cam 18 or the roller 17 may be moved or adjusted into an inoperative position by a control member, so that the valve 15 is not actuated.
Patent GB-131063-A (GB)
Title: Improvements in Percussion Fuzes for Projectiles.
IPC: F42C15/20
Filed: 1918-04-11
Abstract: 131,063. Rudge-Whitworth, Ltd., and Pugh, J. V. April 11, 1918. Projectile fuses.-Relates to direct-action percussion fuses in which a needle or striker, normally held in the safety position by a centrifugal device, is also retained by a shearing pin passing through it and is engaged by a guide-pin entering a groove in the side of the striker. According to the invention, the guide-pin and the shearing-pin are combined, and arranged in axial alinement. In the construction shown, the shearing-pin h is accommodated partly in a hole in the guide-pin f and passes through the striker b into a hole e<1> in the fuse-body. The head of the striker; with which engages a centrifugal safety-device comprising a metal tape c and a split collar c<1>, is normally enclosed in a removable cap d. A centrifugal shutter n is also provided.
Patent GB-879867-A (GB)
Title: Improvements in magnetic switching apparatus
IPC: G11B5/54
Filed: 1959-02-23
Abstract: 879,867. Magnetic recording &c. heads; supporting. INTERNATIONAL BUSINESS MACHINES CORPORATION. Feb. 23, 1959 [Feb. 21, 1958], No. 6198/59. Class 40 (2). [Also in Group XIX] As shown in Fig. 1, a transducer 11 is supported above a magnetic record disc 15 from an electrostrictive device 12 depending from an access arm 13 which is movable to position the transducer over a selected track on the disc 15. The device 12 includes two electrostrictive elements 21, 22 each comprising a bottom metal backing strip 23 bonded to a thin strip of barium titanate 24. The element 22 is supported from a conductor 31 secured to arm 13 while element 21 is secured directly to arm 13. A spacer 33 transmits the movement of device 22 to device 21. The plates 23 are connected to a grounded lead 29 and the top surfaces of the barium titanate strips 24 in parallel to a lead 30. The faces of the strips charged negatively will become convex so that a negative voltage supplied through lead 30 will result in the transducer being moved towards the record disc and coacting magnetically with its surface. As shown in Fig. 4, a bank of magnetic record discs 15 rotate on a spindle 33<SP>1</SP> and transducers 11a, 11b are supported on cranked rods 14a, 14b so that transducers 11a may coact with the top surfaces of the discs and transducers 11b with the undersurfaces of the discs, by rotation of the rods 14a, 14b by means of sets of electrostrictive strips connected mechanically in parallel and acting on short arms secured to the inner ends of the rods 14a, 14b. Since the movement of the electrostrictive device is determined by the applied voltage an automatic gain control circuit may be provided which by sampling the signal level of the transducer may control the voltage applied to the device. This would compensate any disc wobble or unevenness, or poor signal due to the speed of the record track. Further since deformation of the devices takes place in 10-50 milliseconds contact between the transducer and disc may be caused to cut-off the voltage applied to the devices with consequent speedy withdrawal of the transducer.
Patent GB-565127-A (GB)
Title: Improvements in fluid-operated jacks for use more especially for operating aircraft auxiliaries
IPC: F15B15/26
Filed: 1943-04-19
Abstract: 565,127. Hydraulic machines. TURNER MANUFACTURING CO., Ltd., and GROVES, W. R. April 19, 1943, No. 6206. [Class 69 (ii)] [Also in Group XXVIII] In a fluid pressure jack for aircraft auxiliaries &c. having means for locking the piston at the ends of its stroke of the kind wherein the piston moves a sleeve d<1> axially until members H on the piston engage behind a ring G carried by the cylinder and are locked in position by return of the sleeve to its normal position under spring pressure c<1> the members H are of segmental form slidable in radial slots in the piston. Inner and outer peripheries of the members H are chamfered for engagement with similar chamfers on the ring, G and sleeve d<1>. The lock is released by the actuating fluid pressure which first moves the sleeve d<1> axially to free the segments and permit movement of the piston.
Patent GB-605854-A (GB)
Title: Improvements in and relating to cartridge feed devices for firearms
IPC: F41A9/54
Filed: 1940-04-06
Abstract: 605,854. Cartridge magazines. BREVETS AERO-MECANIQUES SOC. ANON. April 6, 1940, No. 6249. Convention date, Oct. 14, 1939. [Class 92 (ii)] Cartridges 3a are supported and guided in the outlet passage 2 from the magazine 1 by front upper projections 9a and rear lower projections 5 which engage the cartridge case during the axial movement of the cartridge into the chamber by the lug 4 on the breech bolt. The front projections are situated in the region of the bullet end of the cartridge and although they are spaced so as not to impede downward movement from the position 3b, they are engaged by the cartridge case as it starts to move forwards. The Specification as open to inspection under Sect. 91 also describes with reference to Fig. 2 (Cancelled) an upper projection in the form of a spring-pressed detent 9 arranged directly above the projections 5 and acting through the case of the cartridge 3b to support the case of the cartridge 3a. This subject-matter does not appear in the Specification as accepted.
Patent GB-1346156-A (GB)
Title: Power supply system
IPC: H02M5/27
Filed: 1972-02-10
Abstract: 1346156 Inverting: frequency changing: control of A.C. motors GENERAL MOTORS CORP 10 Feb 1972 [22 Feb 1971] 6257/72 Headings H2F and H2J In an inverter or frequency changer comprising a plurality of controlled switching devices (e.g. transistors or thyristors 36A ... 66C) connected between a source 12 and a load 28, the switching devices are made conductive at differing times so as to provide A.C. of adjustable frequency the conduction periods during half cycles being width-modulated so as to provide a control of output voltage only at frequencies below a predetermined limit. The system is applicable to control of a squirrel cage motor 28 in an earth moving machine by controlling the power from an alternator 10 driven by a turbine or diesel engine. The thyristors 36A ... 66C are arranged in eight three-phase bridges; all thyristors of any one bridge being conductive simultaneously so as to provide D.C. pulse outputs to the windings of the motor 28. The motor speed is controlled by variation of the output frequency which is achieved by comparing the output from a tachometer 68 with a desired frequency control signal from 72. Control systems.-The adder 70 provides a continuous train of pulses the frequency of which is a function of the desired frequency and which is -fed to a fixed frequency oscillator 78 so arranged that if the pulses from adder 70 are of higher frequency than that of oscillator 78 the latter is inhibited. If the pulses from adder 70 have lower frequency than that of oscillator 78, they are superimposed by further adder 80 on the output from oscillator 78. A sawtooth waveform is produced starting with each pulse from adder 80 and feeding a voltage comparator 168 where it is compared with a voltage on line 174 which is indicative of the required output voltage for the motor 28. A rectangular wave is generated at 172 at the times of the crossing point of the inputs to comparator 168 and is passed via an AND gate 184 to a transistor 190 which controls the output of a chopper, feeding the gates of the thyristors A + in the first bridge. The outputs of six other circuits are steered to the remaining groups of thyristors. Fig. 4C (not shown) depicts waveforms of operation at high frequencies when the pulse frequency from adder 70 is greater than that from oscillator 78. Each group of thyristors then receives merely two pulses per cycle. Figs. 4A and 4B (not shown) depict width-modulated pulses for low and intermediate frequency of operation. Fig. 5 (not shown) relates to transistor circuits for blocks 78 and 86.
Patent GB-100445-A (GB)
Title: Means for Injecting Liquid Fuel, and other Liquids into Explosions Motors, Furnaces, and the like.
Inventor: GROENKWIST OSCAR ROBERT
IPC: F02M61/04
Filed: 1916-05-02
Abstract: 100,445. Gronkwist, O. R. May 7, 1915, [Convention date]. Check or non-return valves; valve members. - A diaphragm 4 is centrally perforated at 6 to form a spraying orifice and is secured by a screwed cap 5. The central perforated portion rests normally against a solid seat block 7 between the fluid inlet passages 8, the valve being then closed. The orifice 6 is sharp-edged and conical, the smaller diameter being on the inside of the diaphragm. The closure is made more rapid and complete by the pressure outside the valve. In a modification, the diaphragm is imperforate and bears against an orifice. The diaphragm may bear against another diaphragm.
Patent GB-345063-A (GB)
Title: Improvements in shelf supporting brackets
IPC: A47B57/26
Filed: 1930-02-25
Abstract: 345,063. Brackets. EISOLD, H., Freyburg-on-Ulm, Germany. Feb. 25, 1930, No. 6270. [Class 52 (v).] In a bracket of the kind in which the bracket arm b is pivoted at d to a band clip a embracing a vertical support and has a cam surface l which bears on the vertical support, when the arm is at a predetermined inclination, to hold the bracket in position, the arm is provided below the cam surface l with a projection m to act as a stop.
Patent GB-1097211-A (GB)
Title: Method of hard facing the heads of poppet valves for internal combustion engines
IPC: F01L3/04
Filed: 1965-02-12
Abstract: 1,097,211. Making valves; welding by pressure. K. G. B. VON WAHLSTATT, [trading as BAYERISCHE LEICHTMETALLWERKE GRAF BLUCHER VON WAHLSTATT]. Feb. 12, 1965 [July 8, 1964; Nov. 26, 1964], No. 6276/65. Headings B3A and B3R. In hard facing a poppet valve for an internal combustion engine, a ring of facing material is placed in linear contact with the tapered periphery of the valve head formed as a surface of revolution and electric resistanee welded thereto, using a substantially constant force on the ring during welding, plastic deformation of both parts resulting. In an embodiment, a valve head 2 with a frusto-conical periphery is engaged in line contact by a circular section ring 3 of armouring material and an electrode 5 engages the valve head while a recessed electrode 4 engages the ring 3. The current flow may be intermittent in pulses and the ring becomes welded to the whole periphery of the valve head and its outer periphery conforms to that of electrode 4. Some material may be finally removed from the armoured head. The rings may be of triangular, rectangular or square cross-section and the ring and/or the valve head may be preheated. The valve head may have a periphery in the shape of a curved surface of revolution.
Patent GB-213406-A (GB)
Title: Improvements in connection with glass feeding devices
IPC: C03B7/00
Filed: 1923-03-06
Abstract: 213,406. Wood, J. T. March 6, 1923. Delivering molten metal.-A forehearth forming part of an automatic feeder comprises an outer casing A<6> of refractory material, and an inner trough A which is separated from the casing A<6> by passages B. These passages permit the hot gases from the tank A<1> to circulate around the trough before escaping by a flue B<3>. The trough A conveys the metal C from the tank to the delivery aperture C', and by this construction, the metal is prevented from chilling and is kept at a more uniform temperature. Heat from an external source may also be applied to the forehearth through suitable openings in the outer casing.
Patent GB-782664-A (GB)
Title: Semiconductive rectifying bodies
IPC: H01L29/00
Filed: 1955-03-04
Abstract: 782,664. Semi-conductor devices. WESTERN ELECTRIC CO., Inc. March 4, 1955 [March 5, 1954], No. 6456/55. Class 37. A rectifying element comprising a single crystal silicon body having an intermediate zone of one conductivity type, one terminal zone of opposite conductivity, and another terminal zone of the said one conductivity type but of considerably lower resistivity. The element of Fig. 1 has an n type intermediate zone of resistivity 0.3 ohm cm, one terminal zone of p type of resistivity 0.001 ohm cm. having boron as a significant impurity, and another thinner terminal zone of n+ material of resistivity 0.01 ohm cm. having phosphorus as the impurity. The element has low internal losses and a capacity for tolerating substantial temperature rises, and low resistance ohmic connections are made to the terminal zones by rhodium plating 14, 15. The element is manufactured by heating an n type silicon cylindrical wafer in an atmosphere of boron trichloride at high temperature to form a thin p type surface. One end of the wafer is then removed to expose the n type zone, and the wafer is then heated in a phosphorus atmosphere to form an n + layer on the n type surface which was exposed. The surface of the p type zone is unaffected by the phosphorus atmosphere. In a modification a silicon body is provided having a p type intermediate zone, a thin n type terminal zone having a concentration of phosphorus impurities, and a still thinner p+ type terminal zone having boron impurities. It is then necessary to grind off the cylindrical surface to form a stack of n, p and p+ type zones. Specifications 700,231 and 782,662 are referred to. Fig. 2 (not shown), gives an example of how two such elements may be connected to give full-wave rectification.
Patent GB-1247185-A (GB)
Title: Dynamo electric machines
Inventor: BOWCOTT ROY PRICE
IPC: H01R39/32
Filed: 1968-02-09
Abstract: 1,247,185. Welding by pressure. JOSEPH LUCAS (INDUSTRIES) Ltd. 24 Jan., 1969 [9 Feb., 1968], No. 6464/68. Heading B3R. [Also in Division H2] The ends of a pair of armature conductors 11, 12 are connected to a commutator riser 16 by first welding the conductors together adjacent their ends, then cutting back the end of conductor 12, as shown, and inserting the projecting end of conductor 11 into a slot 15 in the riser after which the riser is subjected to a hot staking process between electrodes 17, 18 to deform it into engagement with conductor 11.
Patent GB-1009931-A (GB)
Title: Improvements in and relating to fluid filters
IPC: B01D46/00
Filed: 1961-02-22
Abstract: A filter element is made by coating a metal frame with a thermoplastic material, heating the frame and the thermoplastic material to, or slightly above, the fusion temperature of the latter, pressing the coated frame and one or more layers of filter material together and allowing the thermoplastic material to cool thus bonding the filter material to the frame.  Heating may be effected in an oven or by electromagnetic induction.  The filter material may comprise natural or synthetic fibres and/or woven or random metal filaments, or it may comprise one or more layers of synthetic fibre fabrics either of woven fibres or random felted fibres bonded together, or it may comprise expanded materials or combinations of any of the above materials.  The frame may be of wire or of metal strip, channel or angle, or of metal tubing and it may have a plain or knurled or serrated surface to improve the bond.  It may consist of a closed figure and may have one or more lateral members.  The layer or layers of filter material are assembled with the frame in a press.  The frame may be between layers of filter material which may be of larger size than the frame or the material may be only on one side of the frame, or one or more layers of the material may be disposed between two frames. The frame or frames may be heated before assembly with the filter material.  When the element is cool a binding tape may be applied to its periphery.  The tape may be of the self-adhesive type and may be secured in place by sewing or it may have a thermoplastic or thermosetting adhesive and may be applied by passing the edges of the element between heated rollers.  Alternatively, the edges of the element may be provided with plastic coatings.  This may be applied by casting on polyester or other setting or polymerizing compounds either in a gravity mould or by injection moulding with the element so gripped in the mould that the moulding material will not leak past its edges.  Alternatively, the frame may be reheated and the edges dipped in P.V.C. paste.
Patent GB-252809-A (GB)
Title: Improvements in coin wrapping machines
IPC: G07D9/06
Filed: 1925-03-10
Abstract: 252,809. Burdick, C. L. March 10, 1925. Paper bags, making.-In a machine for wrapping-up coins &c., a mandrel round which a sheet of paper has been wrapped to form a tube is placed on a V-shaped bed 11 mounted on a sliding carriage 7, and the carriage 7 is then moved to the left so that the end of the paper tube is crimped inwards by a rapidly rotating head 3. To provide for mandrels of different diameters, the bed 11 is vertically adjustable by rack-andpinion mechanism 12, 13 operated by a hand lever 15 having a spring bolt 16 for securing the handle in different positions. Specification 151,058 is referred to.