baber/WOPTO huggingface dataset:
Patent GB-273249-A (GB)
Title: Improvements in feeding mechanism for presses
IPC: B30B9/12
Filed: 1927-03-19
Abstract: 273,249. Anderson Co., V. D., (Assignees of Anderson, R. T.). June 28, 1926, [Convention date]. Extrusion presses.- Material is fed from a heating trough 9 to the casing 2 of a press through a chute 8 by means of a spiral element 13, preferably of spring steel; suspended from and rotating with a shaft 16. The spiral 13 is tapered at its lower end which is turned down to form a finger 15. At its upper end the convolutions are contracted so as to pass on one side of a shaft 12 carrying feed screws 10, 11 in the trough 9. The shaft 16 is driven through a friction clutch 21 from a shaft 26 from which the shaft 12 also receives its motion.
Patent GB-267972-A (GB)
Title: Improvements in the process of melting metals, and apparatus therefor
IPC: C21C1/00
Filed: 1927-03-19
Abstract: 267,972. Corsalli, F. W. March 19, 1926, [Convention date]. Shaft furnaces; charging.-In a process of melting metals in a shaft furnace, e.g. iron manufacture, with addition of refining metals such as ferro-nickel, ferro-chromium, ferromanganese, ferro-silicon and the like, the added materials are melted or preheated in a separate chamber c and fed to the furnace a, at or below the melting zone, or to the forehearth b. As shown in Fig. 1, the refining metal is fed to the chamber c through a closable opening d and is melted by hot gases from the furnace a which escape through a valved outlet e. Fig. 5 shows an arrangement in which the preheating chamber c is in the form of a hearth, a ram g being provided to push the preheated metal into the furnace. When the refining metal is particularly liable to oxidation it is preheated in a retort h, Fig. 6, arranged within the chamber c. The latter may be separately heated by gas, oil, coke, or electricitv. According to the Specification as open to inspection under Sect. 91 (3) (a) the process may be applied to the production of cast iron with addition of silicon and manganese. This subjectmatter does not appear in the Specification as accepted.
Patent GB-778211-A (GB)
Title: Automatic thermal switch device
IPC: H01H61/06
Filed: 1954-03-17
Abstract: 778,211. Thermal switches. O'SHEI, W. E. March 18, 1955 [March 17, 1954], No. 7780/54. Class 38(5) A thermal flasher has a "hot" wire which normally holds open a pair of contacts, expansion of the wire allowing the contacts to close and short-circuit the wire, so that the wire cools and re-opens the contacts, and so on, the wire being connected in series with a resistance which influences one of the wire supports so a to increase the wire tension so as to compensate for increase of temperature in the switch con- 'tainer. A coil 7 is wound on a core 1 secured to a terminal 3a by a rivet which also secures a U-spring 20 carrying armatures - 14, 15. The hot-wire 22 is secured at one end 26 to the armature 14 which is therefore held away from a fixed contact 16 against the bias of the spring 20. The other end of wire 22 passes through a fixed lug 25 and is attached to an eyelet 27 whereby it is connected to the series resistance 28. A resistance wire 28a connecting the resistance 28 to contact 16 passes alongside the wire 22 on the outer side thereof so that the wire 22 is only affected thereby to any great extent when arranged in the Fig. 2 position. The resistance 28 is wound round the plate 21 carrying the lug 25 so as to cause relative movement between the two ends of wire 22, whereby the effects of increasing temperature in the can 32 are compensated for by increasing the wire tension. When wire 22 is heated, contacts 14a 16 close and short-circuit the wire 22 and resistance 28 and so fully energize the coil 7 which maintains the contacts 14a, 16 and closes contacts 15, 17 to light a pilot lamp. The wire 22 re-opens the contacts 14a, 16 against the magnetic bias when cool, and so on. The lug 25 may be bimetallic. Specification 681,956 [Group XXXVIII] is referred to.
Patent GB-1245411-A (GB)
Title: Improvements in and relating to microtome assemblies
Inventor: PRESTON REGINALD DAWSON
IPC: G01N1/06
Filed: 1968-09-17
Abstract: 1,245,411. Microtomes. N. G. N. Ltd. Dec. 23, 1968 [Feb. 17, 1968], No. 7873/68. Heading G2J. In a microtome assembly, the knife is vertically adjustable and horizontally displaceable and its blade cooled below the temperature of the specimen to be cleared and thermally insulated from the remaining assembly. As shown, a knife body 18 pivotally suspended by pivot pins from arms 30, 32 of low thermal conductance has a blade 20 and is connected at its rear end via a low thermal conductance leaf-spring 28 to a plunger 26 displacing blade 20 along its cutting stroke, being actuated in a forward and reverse direction by either of two coaxially mounted solenoids 22, 24. Arms 30, 32 are connected by leaf-springs 34, 36 to a bracket support 38 rigidly attached to a control shaft 40 central of a bearing 42 and passing through an O-ring seal in base-plate 10 to a micrometer adjusting screw and gear-box (not shown) to effect the vertical adjustment. Pipes 44, 46 adjustable horizontally and vertically by means of bellows 48, 50 deliver a coolant such as liquid nitrogen to the blade 20. The assembly may be housed in a vacuum chamber the solenoids either being located outside the chamber and the plunger passing through a bore in the wall thereof, both provided within the chamber, or the solenoid wrapped round a tubular extension thereof, the plunger moving within this extension. In a further embodiment, Fig. 7, (not shown) the solenoids (22, 24) are enclosed within a vessel (70) connected to the vacuum chamber having an axial bore through which the plunger (26) passes and is connected via a tube (72) to atmosphere to permit electrical connections to be passed to the solenoids (22, 24) and to remove contamination within the vacuum system. An arrangement is described for lifting the blade 22 clear of the specimen 14 on its return stroke comprising pressing the forward pivot pin against the underneath and top side of a pair of inclined leaf-springs on its forward and reverse strokes respectively.
Patent GB-742409-A (GB)
Title: A packing or sealing ring for rotating shafts and the like
IPC: F16J15/3208
Filed: 1953-03-24
Abstract: 742,409. Stuffing - box substitutes. KLEIN, A., and BACH, E. March 24, 1953 [March 25, 1952], No. 7996/53. Class 122(5) A shaft seal comprises a packing ring 2, preferably of artificial rubber, having a body part firmly held in a rigid casing 1 and a flexible sealing lip 3 pressed against the shaft by a plate type spring 4 comprising separate resilent fingers extending from a flat strip shaped to form 'an unflanged cylinder 9, the inner and outer portions of the fingers respectively abutting the body part of the ring 2 and the sealing lip. The springs are formed by stamping out a spring steel strip to produce two identical combs each comprising a strip 5, 6 and resilient fingers 7, 8. The combs are bent to U-shape in cross section and then bent into a ring, the ends of the strip being connected either permanently, as by welding or riveting, or detachably, as by a bayonet connection. The strips may be reinforced by beading, &c. or they may be made of thicker material than the fingers. In a modification, Fig. 10 (not shown), the sealing lip is pressed against a side face or collar on the shaft, the spring being substantially' L-shape in cross-section.
Patent GB-558744-A (GB)
Title: Improvements in fastening devices
IPC: F16B5/10
Filed: 1942-06-11
Abstract: 558,744. Stud fastenings. ILLINOIS TOOL WORKS, and EVERY, C. E. June 11, 1942, No. 8014. [Class 44] In a fastening for cowlings and the like of the kind in which a rotatable stud 12 has projections such as a cross-pin 32 which engage cam surfaces on a resilient member, abutments are provided below the cam surfaces, and preferably conforming thereto in shape, to limit the deformation of the resilient member under strain. As shown the invention is applied to a fastening of the kind described in Specification 558,152 in which the resilient member 16 with cam surfaces 46 is integral with and overlies a baseplate 14, being spaced therefrom at one sidt. by bend 18 and at the other by nesting flanges 20, 22. The base-plate is provided with abutments 26 below and conforming to cam surfaces 46. The device shown also has a spring finger 48 integral with the base-plate and bearing against the end of stud 12, the spring in the fastened position holding the cross-pin in depressions in the cam surfaces to prevent accidental release, and in the released position serving to eject the stud as described in Specification 558,769.
Patent GB-1221024-A (GB)
Title: Device for plasma arc treatment of materials
Inventor: BYKHOVSKY DAVID GRIGORIEVICH
IPC: B23K35/02
Filed: 1969-02-14
Abstract: 1,221,024. Arc electrodes. D. G. BYKHOVSKY, A. Y. MEDVEDEV, Y. V. ROSSOMAKHO and V. A. KOSS. 14 Feb., 1969 [15 Feb., 1968], No. 8041/69. Heading H5H. A cooled copper or copper alloy cathode holder 2 with a zirconium or zirconium alloy insert 14 is characterized by a metal barrier layer 15 which prevents the formation of intermetallic compounds between the copper and zirconium. Preferrred metals are tungsten, molybdenum, chromium, tantalum, niobium and vanadium. The layer 15 is applied by electro-deposition or vacuum spraying on either the holder 2 or insert 14, or may be fitted into holder 2 by mechanical means. The arc discharge 5 passes through one or more nozzles 3, 7 separated by insulating gaskets 12. Applications to cutting, removing surface defects from metal castings, nitriding, case-hardening and heating chemically active gases are mentioned. The absence of intermetallic compounds enables the copper to conduct heat away from the zirconium insert efficiently, thereby prolonging its optional life.
Patent GB-1361372-A (GB)
Title: Tube couplings
IPC: F16L19/10
Filed: 1973-02-19
Abstract: 1361372 Pipe couplings WEATHERHEAD CO 19 Feb 1973 [13 March 1972] 8059/73 Heading F2G A resilient annular distance piece 57 indicates a first sealing position, Fig. 2, but may be squashed up (Fig. 3, not shown) if further sealing is subsequently required. The indicating ring 57 may be of polythene or p.t.f.e. Tube 32 may be of nylon.
Patent GB-970888-A (GB)
Title: Improvements in or relating to coin-freed apparatus
IPC: G07F15/00
Filed: 1962-03-01
Abstract: 970, 888. Coin-freed apparatus. PRICKETTS Ltd., and C. R. PRICKETT. May 22, 1963 [March 1, 1962], No. 8082/62. Heading G4V. A cash box, in a coin freed apparatus such as a television receiver, comprises a lockable enclosure which is itself lockable to the coin-freed apparatus, the apparatus being held inoperative or capable of receiving only a few additional coins when the cash box is detached. In a television system the invention allows the cash box to be taken by the subscriber to an accounting centre for emptying. One key is used to detach the box from the apparatus and a second key is used to gain access to the cash. As illustrated the cash box comprises a container with a coin entry slot 11 and a removable wall 7 carrying a lock 10. The box carries a cylindrical plug which mates with a corresponding recess 36 in the coin mechanism 1 when the box is inserted into its housing at the bottom of the apparatus. A key 35 locks the plug by means of lock 37 which it embraces. Actuation of lock 37 opens and closes a coin delivery aperture in the coin mechanism 1 so that with the cash box detached the aperture is closed and there is no access to within the apparatus. The box also contains a slide which closes the coin entry slot 11 as the box is withdrawn from its housing, the slide being held open by a finger projecting from the housing into the box. When the box is emptied at the central accounting office the slide is cocked open on a latch from inside the box and when the box is pushed into its housing the projecting finger springs the latch and holds the slide until the box is withdrawn.
Patent GB-626164-A (GB)
Title: Improvements in and relating to electrical conductors
IPC: H01B7/29
Filed: 1947-03-25
Abstract: 626,164. Cables. BRITISH THOMSONHOUSTON CO., Ltd. March 25, 1947, No. 8133. Convention date, March 29, 1946. [Class 36] The copper core of a conductor is coated with a layer of chromium before the application of synthetic resinous insulation. The chromium coating is preferably between 0.00005 and 0.00025 inch thick, and is sufficient to prevent oxidation of the core without itself becoming brittle, and may be applied to the core by electro-plating. Numerous synthetic resins are named as being suitable for the insulating covering, such as those described in Specifications 531,273, [Group IV], 534,159, 542,655 and 548,911, [both in Group IV]. The Specification as open to inspection under Sect. 91 also describes a wire in which the copper core is coated with cadmium prior to the application of the insulating covering. This subject-matter does not appear in the Specification as accepted.
Patent GB-540554-A (GB)
Title: Improved method of and means for manufacturing magnetic coils for deflecting cathode rays and similar purposes
IPC: H01J29/76
Filed: 1940-03-26
Abstract: 540,554. Coil winding apparatus ; cathode raytubes. JEFFERSON ELECTRIC CO. March 26, 1940, No. 8148/41. Convention date, June 2, 1939. Divided out of 539,122, [Group XL]. [Class 35] [Also in Group XL ] A coil assembly for an electronbeam deflecting system or other use is made by prewinding two coils, securing them on an expansible and collapsable arbor so that their magnetic axes are at rightangles to each other and to the arbor axis and their sides conform to the contour of the arbor, deforming the ends of the coils so that they extend outwards from the arbor and their maximum dimensions are transverse to the arbor and finally collapsing the arbor and removing it from the completed assembly. The coil assemblies are of the forms described in Specification 539,122, [Group XL]. The form of arbor shown consists of a metal or other tube 101, preferably of some resiliency, split at 102 and having flared ends 100 so as to be expansible under the wedging action of coned discs 103, 104 which may be drawn together or separated by means of a screw 105. The coils may be stiffened by dipping in molten wax or the like and cooling prior to withdrawal of the arbor.
Patent GB-895922-A (GB)
Title: Improvements in or relating to aircraft gas-turbine jet propulsion engines
Inventor: MORLEY FREDERICK WILLIAM WALTO
IPC: F02K1/12
Filed: 1958-03-13
Abstract: 895,922. Gas turbine jet propulsion plant. ROLLS-ROYCE Ltd. March 5, 1959 [March 13, 1958], No. 8166/58. Class 110 (3). An aircraft gas turbine jet-propulsion engine comprising a propulsion nozzle with an adjustable member for varying the nozzle area which is movable between a reduced area and a maximum area position, has control means for the adjustable member so that it is moved to the reduced-area position only when the pilot's engine throttle lever is moved to the take-off position and for other settings of the lever, the adjustable member is in its maximum area position. The invention is described with reference to a silenced nozzle of the kind in which fixed hollow lobes 11, Fig. 1, are attached to the downstream end 10a of the jet pipe. The lobes are open at their downstream ends and increase in cross-section at right-angles to the nozzle axis from their upstream to their downstream ends. The interiors of the lobes are open to atmosphere through ports 14 so that air can cool the lobes and then mix with the exhaust gases. An adjustable member 12 preferably of the form described in Specification 849,333 is also attached to the end 10a of the jet pipe. The adjustable member 12 comprises inner and outer flaps pivoted at 18 to the jet pipe end 10a. The flaps are actuated by a ram 19 acting through a piston-rod 20 and linkwork 22, 24. When the lever 27, Fig. 1, is in any position, but that for take-off, the switch 31, Fig. 1, is closed and the coil 34, Fig. 2, energized. The valve member 36 is closed against the action of the spring 37 so that vent 38 is open. The righthand end of the piston valve 45 is thus at atmospheric pressure and the space between the lands 45b, 45c at high pressure so that the piston valve 45 is held at the right hand end of its travel. The high-pressure air conduit 39 is connected through passage 40, space 41 and passage 47 to the right hand side of piston 21, the left hand side of which is connected to atmosphere through the passages 44, 48. The piston 21 is urged to the left and the adjustable member 12 is held in its maximum area position. When the throttle lever 27 is moved into the take-off position shown, Fig. 1, the switch 31 is opened and the solenoid 34 de-energized. The valve 36 closes the port 38 and connects the duct 39 to the right hand end of the piston valve 45 which moves to the right against the stop 49. In this position the left hand side of piston 21 is connected to the high-pressure conduit 39 through passage 40, space 44 and passage 48 and the right hand side of the piston connected to atmosphere through the passages 47, 46. The ram piston 21 then moves to the right and moves the adjustable member 12 to the minimum area position. Specification 895,921 also is referred to.
Patent GB-357934-A (GB)
Title: Improved method of producing mechanically autogenously welded chains, rings or the like
IPC: B21L3/00
Filed: 1931-03-17
Abstract: 357,934. Making chains and rings. SCHœLL, F. and SCHœLL, A., (trading as KRAFFT & SCHULL), Duren, Rhineland, Germany. March 17, 1931, No. 8178. Convention date, March 17, 1930. [Classes 83 (ii) and 83. (iv).] Uniting by fusion.-In the mechanical production of chains, rings, and the like the joints are united by autogenous welding by means of a burner. The articles are made of a metal of high tensile strength, preferably brass. The chains are produced mechanically by assembling the links in a chain-making machine and then subjecting to the action of the burner, so that the metal at the ends of the links flows together without the formation of ridges.
Patent GB-477126-A (GB)
Title: Improvements in or relating to tools and handles therefor
IPC: B25G1/00
Filed: 1937-03-19
Abstract: 477,126. Handles. PEISELER, A., (trading as PEISELER, J. G.). March 19, 1937, No. 8210. Convention date, March 27, 1936. [Class 61 (i)] Files, saws, scrapers, reamers, &c. formed without tangs are secured to a handle a by means of a screwed pin h adapted to engage a nut d embedded in the handle and provided with a head i slotted to receive the end m of the tool k and connected thereto by a transverse pin n, a compression ring f being interposed between the ends of the tool and handle. The compression ring may be formed in one piece with the handle and may have a conical bore to receive a conical end on the tool.
Patent GB-879095-A (GB)
Title: Improvements in or relating to electric voltage-stabilising circuits employing transistors
Inventor: BARSBY PETER ALAN
IPC: C07D235/20
Filed: 1960-03-08
Abstract: 879,095. Automatic voltage control systems. GENERAL ELECTRIC CO. Ltd. March 8, 1960, No. 8221/60. Class 38 (4). In a voltage-stabilizing system first and second variable impedance elements are connected in series between an input and an output and the impedance of the first element is varied in dependence on the voltage supplied to the second element so that for a change of 8 v. in the input voltage, the voltage supplied to the second element changes by K8 v., where K is a constant having a value greater than zero but less than unity; the second element is the emitter to collector path of a transistor which is controlled so as to maintain the output voltage constant. As shown, the emitter-collector path of a transistor 5 is connected in series with the emitter-collector path of a transistor 6 between an input terminal 1 and an output terminal 3. An input terminal 2 is directly connected to an output terminal 4. The impedance of the emitter-collector path of the transistor 5 is controlled through a transistor 25 by an error voltage from transistors 22, 23 comparing a fraction of the input voltage developed across a resistor 30 with a fraction of the voltage supplied to the transistor 6 developed across a resistor 21, so that the variation in the voltage supplied to the transistor 6 is a predetermined fraction K of the variation in the input voltage. The voltages at the base electrodes of transistors 22, 23 are maintained approximately equal, for a change in the value of resistors 20, 21, 29, 30 consequent upon a change in the value of K, by the use of a Zener diode 19, or a plurality of Zener diodes brought into circuit as the value of K is varied. The emitter-collector impedance of the transistor 6 is controlled, so as to maintain the output voltage constant, through a transistor 17 by a transistor 11 responsive to the difference between the voltage at a tapping of a potential divider comprising resistors 8, 9, 10 and the voltage across a reference diode 12. The base electrodes of transistors 25, 17 are maintained negative with respect to their respective emitter electrodes by the voltages across Zener diodes 28, 18 supplied from a terminal 16. A number of loads may be separately supplied by connecting each load to a circuit comprising the components to the right of the section line 31.
Patent GB-910683-A (GB)
Title: Improvements in or relating to chronometers
IPC: G04F7/04
Filed: 1959-03-10
Abstract: 910,683. Clocks and watches. JUNGHANS A.G. GEB. March 10, 1959 [March 10, 1958], No. 8226/59. Class 139. A timepiece has a hand 22 which moves over a minute scale, a central hand 23 which moves over a seconds scale and a hundredths of minutes scale, and a three-part pointer 24 which moves over a scale which indicates tenths of seconds or thousandths of minutes depending on the gear ratio employed in the drive.
Patent GB-1006816-A (GB)
Title: Prevention of cold flow in conjugated diene polymers
IPC: C08F36/04
Filed: 1964-02-28
Abstract: Conjugated diene polymers having a reduced tendency to cold flow in the unvulcanized state are prepared by polymerizing a conjugated diene with a catalyst comprising an organo-metallic compound in the presence of a compound R4M where M is silicon, germanium, tin or lead and R is a vinyl, alkyl, cycloalkyl or aryl radical, at least two of said radicals being vinyl.  The compound R4M is incorporated in the polymerization mixture at any time prior to shortstopping the polymerization reaction, and the amount of said compound added is generally from 0.005 to 5 millimoles per 100 parts by weight of monomer.  The preferred catalysts are selected from (a) an organometallic compound and an iodine-containing component and (b) an organo-lithium compound.  Extensive lists of monomers, comonomers, catalyst components and compounds R4M are given. In the examples butadiene is polymerized in a solvent using one of the following catalyst systems:-(a) n-butyllithium and tetravinyl silane or tetravinyl tin; (b) lithium methylnaphthalene and tetravinyl tin and (c) triisobutylaluminium, titanium tetrachloride, iodine or titanium tetraiodide, and tetravinyl tin. The polymers may be vulcanized.
Patent GB-576233-A (GB)
Title: Improvements in sealing washers for joint-making packing
IPC: F16L15/04
Filed: 1944-05-03
Abstract: 576,233. Sealing washers. DOWTY, G. H. May 3, 1944, No. 8383. [Class 122 (iii)] In a composite sealing washer comprising an annulus 11 of resilient material surrounded by a confining ring 10 serving to constrain expansion in an outward radial direction the resilient ring is tapered so that the axial length of the bore is greater than that of the periphery. The sealing ring is united to the confining ring by moulding in situ. Specification 537,654 is referred to.