baber/WOPTO huggingface dataset:
Patent GB-368183-A (GB)
Title: Improvements in closure devices for tins and other receptacles
IPC: B21D51/38
Filed: 1931-06-10
Abstract: 368,183. Closures for tins &c. JOVIGNOT, C., 15, Rue de la Vanne, Montrouge, Seine, France. July 10, 1931, No. 19932. Convention date, June 5. [Class 125 (iii).] A closure device for tins &c., of the type in which a metallic cap 1 is provided on its flange with an intermediate inwardly projecting beading 4 adapted to be forced against the lateral wall of the tin &c. 17 when the cap is crushed between a flat surface bearing against the upper side of the cap and a ring of suitable shape surrounding the tin &c. and bearing against the bottom 5 of the depending flange of the cap, is characterized in that the intermediate inwardly projecting beading of the cap is adapted to bear on a roughened surface on the can, preferably formed by a number of grooves or striations 19 running parallel with the top of the tin &c. A sealing gasket of fibre &c. 7 may be used which is fitted into the groove 2 between the top and flange of the cap so that a portion extends downwardly to seal the tin &c. both in a horizontal and vertical sealing area. A device for introducing the sealing gasket into the cap is disclosed, Figs. 8 and 9 (not shown), comprising matrix and die members operated by a hand-lever &c. A rupturing member 6 is provided on the flange of the cap which on being pressed in direction f will rupture the edge 5 to allow the cap to be removed.
Patent GB-647488-A (GB)
Title: Improvements in or relating to means for preventing overload in electric amplifiers
IPC: H03F3/28
Filed: 1947-07-24
Abstract: 647,488. Valve-amplifying circuits. PHILIPS LAMPS, Ltd. July 24, 1947, No. 19975. Convention date, July 27, 1946. [Classes 40 (v) and 40 (vi)] An amplifier, and more especially a class-B amplifier is protected from overload consequent upon the load impedance being unduly reduced by means of a control voltage, which produces a restriction in the anode current and which is dependent upon both the current in and the voltage across the load. In the simplest arrangement a D.C. potential proportional to the voltage across the load 4 is derived from a winding 6 on the output transformer by means of a rectifier 7 and is combined in opposing sense with a D.C. potential proportional to the current in the load, obtained by means of rectifier 10 from the secondary winding 9 of a current transformer whose primary 5 is in series in the load circuit. The combined potential on the line 13 is restricted to negative values by means of a shunt rectifier 12, and is applied to control the input in known manner. In order to obtain a satisfactory control when the load impedance contains a reactive component, an additional D.C. potential may be derived by means of a circuit comprising a further rectifier 17 and windings 15, 16 on the output and current transformers respectively, and which are connected in series in opposing sense. Values are given in the Specification for the optimum relationship between the windings 6, 9, 15, 16 and it is shown that by suitable choice of windings 6, 15, 16 the winding 9 and rectifier 10 may be omitted. The arrangement may also include a delay voltage in series with the line 13 or rectifier 12 in order to prevent control occurring for values of anode current which are less than the permissible maximum.
Patent GB-717218-A (GB)
Title: Improvements in or relating to casting installations for stereotype plates
IPC: B41D3/00
Filed: 1952-08-08
Abstract: 717,218. Printing surfaces. MASCHINENFABRIK AUGSBURG-NURNBERG AKT.-GES. Aug. 8, 1952 [Aug. 8, 1951], No. 20065/52. Class 100 (2) Casting apparatus.-Casting apparatus for stereotype plates, comprises a frame, a drumlike casting vessel tiltedly mounted on the frame about the horizontal axis of the vessel, a discharge outlet which extends over the whole width of the plate to be cast and disposed above the highest level of the material to be cast when the vessel is in the non-pouring position and a shutoff member carried by the vessel and co-operating with the discharge outlet for controlling the flow of the material to be cast. As shown, the apparatus includes a melting vessel 5 rotatably mounted on trunnions 6. Heating elements for the metal as located in tubes 8, 9, and 10, and a heating element 13 is provided in the casing 12 of the shut-off member. The casting mould comprises a shell 14 and a core 15 rotatably mounted on a shaft 16. In the rest position the core 15 is suspended by pins 17 on straps 18 articulated to a member 19. A shaft 21 arranged on the shell 14 is engaged by a rod 22 connected to a rod 23 rigidly mounted on a shaft 24 together with a hand lever 25 so that the shell 14 can be moved up and down. The shaft 21 is also engaged by one end of a connecting element 26 the other end of which is attached to pins 27 or the vessel 5 in such a manner that the weight of the shell 14 acts in opposition to the weight of the casting outlet. The shut-off member 11 is turned by a hand lever 33.
Patent GB-925013-A (GB)
Title: Improvements in or relating to railway vehicle brake beams
Inventor: SINCLAIR FREDERICK WILLIAM
IPC: B61H13/36
Filed: 1958-06-24
Abstract: 925,013. Railway vehicle brake beams. GLOUCESTER RAILWAY CARRIAGE & WAGON CO. Ltd. June 24, 1959 [June 24, 1958], No. 20135/58. Class 103 (1). A railway brake beam formed as a single fabricated structure comprises tension (1) and compression (2) members formed of channel sections which, when brought together at each end of the beam, form a box section to accept a guide palm 10 and a brake shoe head 6. In the embodiment illustrated the tension and compression members are formed by splitting a tubular element diametrically along an intermediate portion of its length and are progressively separated from the box section unsplit end portions 3 of the tubular element towards the centre of the beam. Two closelyspaced struts 4 interconnect the members 1 and 2 and are adapted for the mounting of the brake-operating linkage. On each box section end portion 3 is mounted a shoe head 6 and the guide palm 10 provided at each end of the beam is formed with a spigot portion which engages within the adjacent annular box section 3 and then welded thereto in the inclined position shown or that the palms are arranged for sliding movement in the side frames of the railway bogie to which the brake beam is fitted.
Patent GB-686758-A (GB)
Title: Improvements in or relating to the fixing of rubber attachments to rod-like articles of hard material
IPC: A47C7/00
Filed: 1949-08-03
Abstract: 686,758. Ferrules. WALLINGTON, T. S. May 5, 1950 [ Aug. 3,1949], No. 20177/49. Class 134. [Also in Groups XV, XXVIII and XXXI] A tubular metal leg 1 of a chair is provided with a metal ferrule 2 which is a press fit on the leg and may be additionally secured by spot welding and has three sets of teeth 3 consisting of segments of three rings and being of ratchet form with the operative edges facing away from the end of the leg, whereby a rubber foot 4 is securely attached to the leg. The ferrule 2 may have a base or may be open at both ends and may have two rings or only one ring of teeth. A rubber foot may be secured to a wooden chair leg by means of a metal ferrule, having one ring of teeth which is secured to the leg by pins or screws.
Patent GB-726145-A (GB)
Title: Sealing closures for containers and method of producing same
IPC: B21D51/46
Filed: 1953-07-21
Abstract: A composition suitable for making a sealing liner for a sealing closure such as a cap of the crown or screw type comprises polyvinyl chloride and dicyclohexyl phthalate, preferably in approximately equal parts by weight.  The composition is preferably prepared by melting the dicyclohexyl phthalate and adding the polyvinyl chloride thereto.
Patent GB-258057-A (GB)
Title: Improvements in or in connection with ships, boats and the like for preventing excessive rolling, and minimizing the liability of capsizing of the same
IPC: B63B39/02
Filed: 1925-08-12
Abstract: 258,057. Robb, A. Aug. 12, 1925. Rolling motion of ships, damping.-A device for modifying the rolling motion of ships comprises a pair of heavy bars E, E' placed one on each side of the keel D and provided at their ends with upturned extensions shaped to conform to the configuration of the stem and stern to which the ends of the bars are secured by hook members C bolted at B to the stem and stern in such a fashion that the bars E, E' are free to swing about an axis fore and aft of the vessel A. Should rolling occur, one bar alternately maintains a substantially vertical position, whilst the other bar is alternately swung by the keel, the arrangement being designed to check rolling. In a modification, the ends of the bar are formed with eyes, with which engage pins which also pass through eyes formed on plates bolted to the stem and stern of the vessel.
Patent GB-153399-A (GB)
Title: Improved construction of safety valve for flexible or rigid pontoons and the like used for raising sunken vessels
IPC: B63C7/12
Filed: 1919-08-18
Abstract: 153,399. Dagnall, R. F. Aug. 18, 1919. Sunken ships, raising.-A safety valve particularly adapted for use on pontoons employed for raising sunken vessels comprises a perforated tube closed at one end and encircled by a sleeve of indiarubber. In the form shown, the tube a has a flange b against which the side of the pontoon c is pressed by a nut d and has a groove g adapted to receive a rib j on a sleeve h provided for closing the perforations f. In a modification, a layer of gauze is interposed between the tube and the sleeve and the sleeve is secured by wiring the sleeve above a projection on the tube.
Patent GB-678006-A (GB)
Title: Improvements in or relating to lubricating devices for machines and mechanisms
IPC: F16N25/04
Filed: 1949-08-04
Abstract: 678,006. Ratchet gearing. MELLOR, BROMLEY & CO., Ltd., and SHORTLAND, A. July 31, 1950 [Aug. 4, 1949], No. 20310/49. Class 80 (iii). [Also in Group XXXIV] In a gravity-feed lubricating device for a knitting machine a rotary valve 14 periodically delivers a measured quantity of lubricant to one or more parts of the machine. Oil is contained in a transparent cup 1 having a cover 2 integral with a tube 7 projecting through the bottom of the cup, which is closed by a nut 8. The tube 7, Fig. 3, has inlet and outlet ports 10, 11 which are relatively staggered, and the ports 11 register with holes in a sleeve 12 carrying oil-dispensing tubes 13. The rotary valve 14 is reduced in diameter at 14a to provide within the tube 7 an oil chamber having aligned inlet and outlet passages 16, 17 co-operating with the holes 10, 11. The stem 18 of the valve is secured to a toothed wheel 19 which is intermittently rotated by a spring-loaded pawl 23, Fig. 2, carried by an arm 22 pivotally mounted on a platform 20 spaced from the cover 2. The arm 22 is actuated by ratchet gearing comprising two freely mounted coaxial toothed wheels 27, 28 which are rotated by a spring- loaded double pawl 30 carried by an arm pivoted at 34 and having a roller 35 acted upon by a cam or the like on the machine. Over-running is prevented by a blade-spring 29. The wheel 28 has one tooth less than the wheel 27 so that two discs integral with the respective wheels and provided respectively with six peripheral indentations 39 and a single indentation (not shown) are rotated at different speeds. A toe 22a of the arm.22 rides on the edges of the two discs so that when the single indentation on one disc and one of the indentations 39 on the other become coincident adjacent the toe, the arm 22 will be actuated to turn the wheel 19. The numbers of indentations in the two discs may be varied. In modifications the valve 14 may be driven by worm gearing, or a plurality of lubricating devices may be driven by worm or chain gearing from an intermittently or continuously rotating shaft. The tube 7 may be integral with or fitted on the bottom of the cup 1, instead of being integral with the cover. In an application to a circular knitting machine a pinion 48, Fig. 6, driving the dial, Fig. 7 (not shown), drives a valve 55 similar to the valve 14 through a crank 65, spur gearing 70, 71 and spiral gearing 73, 74, 76, 77. The bottom 52 of the transparent oil cup has a neck 54 having outlet ports 56, and inlet ports are provided in a sleeve 58 entering a domed filter 62. A lid 63 has an opening 64 provided with a filter. Pipes 79, 80 distribute oil to the cylinder cam box and the dial cam cap of the machine. It is stated that a plurality of passageways may be formed in the rotary valve of different capacities to deliver through appropriate outlet ports different quantities of lubricant.
Patent GB-719745-A (GB)
Title: Improvements in or relating to spectral scanning method and apparatus
Inventor: STICKNEY MICHAEL ECHOLS
IPC: G01J3/32
Filed: 1952-08-13
Abstract: 719,745. Photo-electric spectrometers. BECKMAN INSTRUMENTS, Inc. Aug. 13, 1952, No. 20349/52. Class 40 (3). [Also in Group XXXVIII] In a recording spectrometer of the type in which a spectrum is traversed relatively to a slit behind which is situated a sensitive device and in which the width of the slit is adjustable, the rate of traverse of the spectrum is made proportional to the slit width and inversely proportional to the response period of the recording. system. As shown, slit width shaft 55 is adjusted bv a servo motor 61 fed from a signal source 64 through amplifiers 63, 62 according to a prearranged "programme" While adjusting slit width servo motor 61 also adjusts a tapping of a potentiometer 65. The voltage developed between the potentiometer tapping and earth is "backedoff by a voltage developed by a D.C. generator 69 driven by the wave'length. adjusting motor 70, which may rock the spectrometer prism or a wavelength selecting mirror. The difference in voltage between the potentiometer tapping and the D.C. generator output feeds a servo-amplifier 71 driving the wavelength motor which rotates at a speed sufficient to keep the two voltages equal. Thus the spectrum is displaced at a rate proportional to slit width. So as to make the wavelength adjustment, inversely proportional to the response period of the mechanism a tapping on a further potentiometer 67 is adjusted in accordance with this period. This potentiometer is series connected with potentiometer 66 and changes the range of speeds over which the slit width control operates. In a modification (Fig. 4) the spectrometer is of the type in which wavelength adjustments are made in a series of steps. In this embodiment the slit width motor 75 moves a contact over a stepped potentiometer 80. The voltage developed is backed off by that developed between earth and tapping 82 driven by the wavelength motor 83 of second potentiometer. Both voltages are applied to a discriminator 88 which applies the unbalance signal to a servoamplifier 90. The amplified signal energizes the wavelength motor 83 which drives contact 82 upwards from a rest positions until balance is attained. A sequence controller 91 responds to the zero signal in amplifier 90 and de-energizes a clutch actuator 92 to open clutches 84, 85. Contact 82 is returned by a spring and the sequence controller 91 switches the instrument to the next balancing cycle. Thus the spectrum is intermittently displaced by movements proportional to the slit width. The response time of the measuring system is taken into account by the "dwell time" of the wavelength motor between each balancing cycle.
Patent GB-1134424-A (GB)
Title: Improvements in or relating to microwave electron beam tubes
Inventor: O'LOUGHLIN CIAN NOEL
IPC: H01J23/15
Filed: 1966-05-09
Abstract: 1,134,424. Discharge tubes. ENGLISH ELECTRIC VALVE CO. Ltd. 31 March, 1967 [9 May, 1966], No. 20403/66. Heading H1D. In a microwave electron beam tube in which the interaction section is insulated from the collector section by a gap, radiation from the gap is suppressed by a shunt capacitor having a solid dielectric and electrodes which are disposed outside the envelope of the tube and encircle the tube in the neighbourhood of the gap. In the klystron shown, the collector 3 is separated from the remainder of the tube body 2 by a gap 5 and a ceramic envelope section 6 secured between two annular metal members 7 and 8. The capacitor is constituted by annular metal plates 12 and 13 separated by dielectric 14, plate 12 having a cylindrical portion 12B fixed to the periphery of metal member 9, and plate 13 having a similar cylindrical portion which contacts a coiled metal spring 11 seated in a groove in the periphery of metal member 10. In a modified structure (Fig. 3, not shown), the cylindrical portion of the capacitor is lengthened, and the annular portion is dispensed with. The application to a travelling wave tube is also referred to.
Patent GB-1332377-A (GB)
Title: Treatment of damaged vertebrae
IPC: A61B17/70
Filed: 1971-04-19
Abstract: 1332377 Vertibrae clamps COLORADO STATE UNIVERSITY RESEARCH FOUNDATION 19 April 1971 [24 Feb 1970] 20610/71 Heading A5R A method of treating damaged vertebrae of an animal whereby at least one damaged vertebrae is secured to at least one healthy vertebrae comprises bridging the spirous processes 28 placed along opposite sides thereof, and clamping the processes thus bridge between the straps by drawing the latter together with fasteners 30 located in each interspinous gap 26 lying between the bridged processes and in the interspinous gaps beyond the extreme vertebrae clamped, the inner surfaces of the straps having recesses (e.g. apertures 34) to receive growth of spinous tissue from the bridged processes. In the embodiment shown two damaged vertebrae are clamped between two healthy vertebrae by straps 28 which are positioned on either side of spinous processes 24 and drawn together by fasteners 30. A suggested material for the straps is vinylidine fluoride.
Patent GB-892074-A (GB)
Title: Improvements relating to the construction and assembly of extractor ventilators
IPC: F23L17/02
Filed: 1959-06-16
Abstract: 892,074. Ventilators. GREENWOOD'S & AIRVAC VENTILATING CO. Ltd., and HUGHES, B. D. June 16, 1960 [June 16, 1959], No. 20661/59. Class 137 A ventilator is formed from a plurality of standard parts which may be assembled in situ and comprises at least two support frames consisting of two S-shaped members 6<SP>1</SP> joined by a member 6<SP>2</SP>, side plates 2, baffle plates 5 and a top plate 4, all the parts being bolted together. Anchor straps 7 secure the ventilator to the ridge of the roof. Specification 811,280 is referred to.
Patent GB-1275464-A (GB)
Title: An improved yarn feeding means for knitting machines
Inventor: TOWNSEND KEITH GERALD
IPC: D04B15/58
Filed: 1969-04-23
Abstract: 1275464 Knitting BENTLEY ENG CO Ltd 17 April 1970 [23 April 1969] 20685/69 Heading D1C The yarn feeder arm(s) of a circular machine, have means which resist undesired movement. As shown the end 8b of the arm engages a hole in a flange of the latch guard ring. The hole may be the bore of an adjustable tube 13 which thereby adjusts the height of the arm. The arm may carry two feeder tubes at different heights, one of which feeds a terry yarn. In an alternative embodiment the end of the arm is urged into a recess in the sinker cap so that the height of the feeder relative to the needle is independent of quality adjustments.
Patent GB-751844-A (GB)
Title: Improvements in or relating to magnetic record carriers
IPC: G11B5/004
Filed: 1951-09-03
Abstract: 751,844. Magnetic sound records. FRIES, G., and POLLOPAS PATENTS', Ltd. Sept. 3. 1952 [Sept. 3, 1951], No. 20787/51. Class 40(2) A magnetic record carrier comprises a thin base 8 of non-magnetic material coated on one or both sides with magnetizable material and corrugated to form grooves 9 and ridges 10 substantially parallel to one another for the guidance of a magnetic head 11. The record carrier may be in the form of a disc with a spiral groove, or in the form of a tape which may be joined at its ends to form a continuous long-playing record, the ends being displaced from each other by one groove in order to provide a helical path. The tape may be given a 180 degree twist in its length in order to provide a continuous path covering both surfaces of the tape. In this case it is necessary to provide a cross-over element, Fig. 5, which effects a coupling of the grooves, as shown by the dotted and full lines in Fig. 4, whereby complete coverage of the tape is accomplished.. The magnetic head 11 is provided with guide blocks 17. 18 of non- magnetic material to guide it. along the record carrier. Specifications 751,842 and 751,843 are referred to.
Patent GB-706798-A (GB)
Title: Process for the production of acid amides
IPC: C07D213/50
Filed: 1951-09-03
Abstract: Acid amides of the formula (R)(R1)CH.CH2CO.NH2 or R11.CH2CONH2 are prepared by reacting at an elevated temperature, e.g. 150-350 DEG C., and under superatmospheric pressure, a solution of ammonium polysulphide with an ester of the formula CH3.CO.C(R)(R1).COOC2H5 where R and R1 each may be an alkyl, aryl, aralkyl, cycloalkyl or heterocyclic radical or a hydrogen atom or with an ester of the formula R11.CO.CH2.COOC2H5 where R11 is an aryl or heterocyclic group.  Preferably the reaction is carried out at 160-190 DEG  C. at a pressure of 25-40 kilograms per sq. cm. in an organic solvent such as pyridine, alcohol or dioxane.  In place of ammonium polysulphide, an aqueous ammonia solution mixed with finely divided sulphur may be used.  In examples ammonium polysulphide is reacted with (1) a -methyl acetoacetic ester to give n-butyramide; (2) acetoacetic ester to give propionamide; (3) a -n-hexyl acetoacetic ester to give n-nonamide; (4) a -benzyl acetoacetic ester to give g -phenyl butyramide; (5) a :a -dimethyl acetoacetic ester to give iso valeramide; (6) and (7) ethyl benzoylacetate to give phenylacetamide; and (8) ethyl nicotinyl-acetate to give pyridine-3-acetic acid amide.
Patent GB-1149675-A (GB)
Title: An improved fastener
Inventor: SECKERSON CLIFFORD ALEXANDER
IPC: F16B21/08
Filed: 1967-05-04
Abstract: 1,149,675. Stud and socket fastenings. F. T. PRODUCTS Ltd. 3 May, 1968 [4 May, 1967], No. 20841/67. Addition to 1,046,975. Heading E2B. The fastener according to claim 1 of the Patent Specification is modified in that the slots opening out of the shank of the fastener extend through the plane of the abutment surface and terminate in the head of the fastener. As shown, in which the head comprises wing portions 13, 14 and in which the shank 11 is provided with three slots 17, 18 and 19, the fastener is used to locate a flange 26 of a vehicle radiator grille on a support 27 which surrounds the grille opening, the shank 11 being snapped through an aperture 28 in the flanges and a stud portion 15 of the head 12 engaged with an aperture 29 in the support 27.