baber/WOPTO huggingface dataset:
Patent GB-704427-A (GB)
Title: Improvements in devices for containing watch and like springs
IPC: B65D25/54
Filed: 1952-02-11
Abstract: 704,427. Packaging; boxes. KNIGHT, B. W. March 4, 1952 [Feb. 11, 1952], No. 3599/52. Classes 94 (1) and 18 A watch or like spring 7 is stored in a shallow, circular tray 1 having an aperture 2 in its base covered by a disc of paper 4 which fits into the interior of the tray. The portion of the under surface of the disc which is visible through the aperture carries particulars of the height and strength of the spring, and further particulars, such as the diameter of the barrel in which the spring is designed to fit, may be printed on the upper surface of the disc. An aperture 6 may be provided in the side wall 5 of the tray to facilitate the entry and coiling of the spring. A box may be provided having several compartments each designed to receive a number of trays containing springs of a particular gauge.
Patent GB-583045-A (GB)
Title: Improvements in or relating to filtering or straining apparatus
IPC: B01D29/15
Filed: 1944-02-29
Abstract: 583,045. Filters. AUTO-KLEAN STRAINERS, Ltd., and STONE, L. H. Feb. 29, 1944, No. 3777. [Class 46] Filtering apparatus of the kind formed from coiled wire or filament has a plurality of coiled filaments the overall diameter of at least one coil being different from that of at least one of the adjacent coils, and the support for the coils being constructed to provide for lodgment of each coil in a helical recess. In the construction shown, the support 1 is grooved at 2 to define spaced ridges 3 which are formed with notches 8, 9 to receive the coils of wire 4, 5, respectively. The support 1 is provided with perforations 6 to permit filtered fluid to enter the interior of the support. The ends of the wires are secured by bent-over ribs 10. In a modification the inner coil of wires or filaments is made of smaller gauge material. In a further modification the recesses on the support are all of the same size and depth, the two coils being of different gauge material. The invention may be applied to filtering apparatus which is cleaned by reverse flow or by scrapers.
Patent GB-122535-A (GB)
Title: Improvements in Jacking Apparatus for Motor Road Vehicles.
Inventor: GLOVER THOMAS
IPC: B60S9/04
Filed: 1918-03-05
Abstract: 122,535. Glover, T. March 5, 1918. Stands or supports for vehicles.-A vehicle jack D of the tilting or tip-over type is pivoted to a fixed part A of the vehicle either above or below the axle B and provided with a lug E arranged in the path of pins G on the wheel C or brake
Patent GB-104557-A (GB)
Title: Improvements in or relating to Starting Mechanism for Automobiles.
Inventor: MELLERSH-JACKSON WILLIAM JOHN
IPC: F16H7/12
Filed: 1916-03-17
Abstract: 104,557. Jackson, W. J. Mellersh-, (Churchward, A.). March 17, 1916. Drawings to Specification. Tension arrangements.-A belt for driving the cooling fan and an electric generator for the internal combustion engine of an automobile has its tension adjusted by a device comprising a pair of tubes, one of which slides in the other, the inner one being spring-pressed and adjusted by a screw and engaging an arm carrying the fan pulley.
Patent GB-114187-A (GB)
Title: Improvements in and relating to Variable Gear Power Transmission Apparatus.
Inventor: FAIRWEATHER EDGAR
IPC: F16H3/24
Filed: 1917-03-20
Abstract: 114,187. Fairweather, E. March 20, 1917. Varriable-speed toothed geraring. - In gearing having sliding toothed wheels or clutch members, such members are rotated relatively to the shafts on which they are mounted when being thrown into or out of gear, so as to lessen shocks. A member 18 slides on an helically twisted shaft 20, so arranged that, when the toothed wheels are in mesh, the member 18 rests upon untwisted portions 19, but when being thrown into or out of gear, the member traverses twisted portions and is thereby rotated. In a modification, a pin projecting from the sliding member engages a stepped helical groove in the shaft. Specification 107,453 is referred to.
Patent GB-190057-A (GB)
Title: Improvements in and relating to electric motor controlling switchgear
IPC: H02P1/04
Filed: 1922-02-11
Abstract: 190,057. Solomon, M., Garrard, C. C., and Wilson, W. Feb. 11, 1922. Addition to 165,626. Controllers, interlocking.-The device described in the parent case is modified so that one contactor only is used for cutting out the starting resistance.
Patent GB-666152-A (GB)
Title: Improvements in or relating to electron discharge devices
Inventor: FOULKES CHRISTOPHER HENRY
IPC: H01J19/50
Filed: 1949-02-15
Abstract: 666,152. Electric discharge tubes. STANDARD TELEPHONES & CABLES, Ltd., and FOULKES; C. H. Feb- 15, 1949, No. 4102/49. Class 39 (i). In an electric discharge tube, a copper conductor connects the grid support rods to one or more of the lead-out pins to enable a reduction in the working temperature of the grid to be attained. In the Figure, the valve comprises insulating platforms 1. 2 supporting and locating an indirectly heated cathode 3, a control grid 4 mounted on supportrods 5, 6, a screen grid 7 mounted on supportrods 8, 9, a suppressor grid 10 mounted on support-rods 11, 12, and anode assembly 13 and a getter assembly 18. The valve has a moulded glass base 20 with lead-out pins 21 sealed therethrough. The anode 13 is connected to its pin by a stout wire 23 and the screen grid and suppressor grid support rods are connected by nickel tape connections 24, 25. Electrical and thermal contact with the control grid is effected by a copper strip 26 which is preferably nickel plated so it may be welded to the control grid support-rods 5, 6 and one or more of the pins 21. Copper connections may also be provided for the screen and suppressor grids and cooling fins 17 may be welded to the support-rods 5, 6.
Patent GB-389963-A (GB)
Title: A process of producing chromium
IPC: C22B34/32
Filed: 1932-02-11
Abstract: 389,963. Extracting chromium. HERAEUS-VACUUMSCHMELZE AKT.- GES. and ROHN, W., 8, Dammstrasse, both in Hanau-on-Main, Germany. Feb. 11, 1932, No. 4120. Convention date, April 15, 1931. [Class 82 (i).] In a process for the production of chromium by the reduction of chromium oxide with circulating hydrogen, the reduction takes place at a temperature above 1600‹ C., the source of heat being disposed within the outer walls of the reaction chamber, and a lining of heatinsulating material between the walls and the source of heat. In one form of apparatus an element 3, Fig. 1, of molybdenum, or tungsten, &c., wound on an inner tube 4 and separated from an outer tube 1 by an insulator 2 heats the initial charge of molten chromium and superimposed oxide in a crucible 5, while hydrogen circulates through tubes 8, 9. Molten chromium 12, Fig. 2, heated inductively by a coil 27 may form the source of heat, the hydrogen then circulating through tubes 19, 26 ; or molybdenum heating elements 28, Fig. 3, may be disposed within the lining of heat insulating material 11. Water vapour is removed from the circulating hydrogen by cooling to temperatures of -60‹ C. to -70‹ C., produced by vaporizing mixtures of liquid carbon dioxide and acetone, or ether, &c., or by vaporizing ammonia under reduced pressure.
Patent GB-389254-A (GB)
Title: Improvements in or relating to electric motor controllers
IPC: H02P1/20
Filed: 1932-02-12
Abstract: 389,254. Master control of D.C. motors. IGRANIC ELECTRIC CO., Ltd., 147, Queen Victoria Street, London.- (Assignees 'of Stansbury, C.; 12th Street, Milwaukee, Wisconsin, U.S.A:) Feb. 12, 1932, No. 4254. Convention date, Feb. 12, 1931. [Class 38 (iii).] Successive steps of motor control are delayed by the gradual discharge of a condenser at a predetermined rate, which varies the grid potential, and, therefore, the conductive state of an electron tube. Upon closure of a pushbutton 4, Fig. 1, a self-maintaining contactor 2 is energized to close the motor armature circuit. Just before the motor circuit is closed a circuit through a resistance 6 is opened so that the potential on the grid 3c of an electron tube 3 is changed from positive to negative with respect to the cathode 3a. After the time required for the negative grid potential to discharge through a variable resistance 10, the tube 3 becomes conducting and the armature resistance is reduced. A number of such accelerating steps may operate in succession. The discharge circuit through the resistance 10 may include the contacts of a relay energized to keep this circuit open while the motor current is above a certain limit. In Fig. 2 (not shown), the anode current of the electron tube energizes a contactor which cuts out armature resistance, and the motor field is controlled by two additional electron tubes as described in Specification 386,675.
Patent GB-1039184-A (GB)
Title: Improvements in or relating to push button dialling
IPC: H01H13/10
Filed: 1964-01-31
Abstract: 1,039,184. Retractive switches. AUTOMATIC ELECTRIC LABORATORIES Inc. Jan. 31, 1964 [Oct. 2, 1963; Oct. 3, 1963], No. 4279/64. Heading H2B. A frame structure of insulating material forms a honeycomb of rectangular cells each accommodating a push-button switch. In a first embodiment (Figs. 3 to 7, not shown), the main frame comprises interlocking slats 13, 14 having printed-circuit connections 19 and fixed contacts 21 and 22 thereon. 'Moving resilient blade contacts 24 and 25 are clipped onto the slats so as to be respectively closed and opened upon depression of buttons 28. Cover plates 115 and 116 are affixed by adhesive or by cooperating bosses and recesses (not shown) and retain the contacts 24, 25 in position. In a second embodiment (Figs. 9 to 14, not shown), the main frame is integrally moulded and cover plates 121 and 145 are clipped on by tabs 156, 158 and catches 157, 159. Connections and fixed contacts are provided by wires 128 held on the top edges of frame members 131 by studs and hooks (Fig. 9, not shown), while the moving contacts are nickel-silver bars 152 resiliently urged towards wires 128 but normally prevented from making contacts by cams 143 projecting from the sides of buttons 120. The buttons 120 may be transparent and lit from below by lamps (not shown).
Patent GB-465305-A (GB)
Title: Improvements in or relating to knitting machines
IPC: D04B9/18
Filed: 1936-02-12
Abstract: 465,305. Knitting-machines. HOLMES, H. H., HOLMES, E. J., and WILDT & CO., Ltd. Feb. 12, 1936, No. 4291. [Class 74 (ii)]. In machines for knitting ladder-proof fabrics by introducing wrap-threads in addition to a ground thread, for instance fabrics of the nature described in Specifications 327,958, 327,988, [both in Class 74 (ii)], 376,350, and 376,736, the wrap-thread measuring or draw-off member, between which and the'threads there is relative movement transverse to the length of the threads, is constituted by a body with a curved periphery, preferably in the form of a disc, rotating about an axis extending generally in a direction lengthwise of the needles and also substantially parallel to the surface of the needle bed. In a circular knitting-machine, for example such as described in Specifications 364,039 and 393,314, two freely rotatable cams in the form of thin spoked wheels 16, 17 are provided for each ground-thread feed, and wrap threads 13 are led by a guide ring 22 to feeders 12, which are projected and withdrawn by cams in a dial cam-plate 111, and deflected to pass from one side to the other of a needle by a cam as described in Specification 364,039. The wheels 16, 17 are so arranged that each wrap-thread will be deflected from the normal path shown in dotted lines to provide a sufficient length for the wrapping and loop-forming operations. The length drawn by the wheels 16, 17 is determined by the adjustment of the carrying arms 18, 19 which are pivoted on pins 26, 27 and held by set screws 30, 31. When the needles are at the bottom of the stitch cam and the wrap-thread feeders are moved outwardly by a plating cam rise 25, the wheel 16 will hold the wrap - threads under sufficient tension to ensure accurate plating as described in Specification 411,649, and will maintain control subsequently to the stitch formation, thus ensuring correct placing of the wrap loop behind the ground loop. The wheel 17 draws the wrapthreads from the supply for wrapping and stitch forming, and a cam 23 is provided to control the thread during wrapping, assisted by spring take-ups if desired. The threads commence to pass down the side of the cam 23 to the left of the line X.X when the feeders are withdrawn by the wrapping cam 15. The cam 23 may be replaced by a rotating cam if desired. Specifications 394,708 and 413,693 also are referred to.
Patent GB-874809-A (GB)
Title: Improvements in or relating to dyestuffs
Inventor: FICKEN GEOFFREY ERNEST
IPC: C09B23/10
Filed: 1959-02-06
Abstract: Compounds of the general formula:-  <FORM:0874809/IV (b)/1> wherein R1 is an alkyl, aryl or aralkyl group are prepared by reacting a 3-substituted oxindole with phosphorus pentasulphide to give a 3-substituted-indoline-2-thione which is then reacted with chloracetic acid to give a 2-carboxymethyl-thio derivative, which is then treated with acetic anhydride to cause ring closure.  An example is given wherein R1 is methyl.ALSO:Dyes having one of the general formulae:-  <FORM:0874809/IV(c)/1> and <FORM:0874809/IV(c)/2> wherein R1 is an alkyl, aryl or aralkyl group, R2 is an alkyl, hydroxyalkyl, carboxyalkyl, sulphoalkyl or aralkyl group, R3 and R4 are alkyl groups, n and m are 0 or 1 and D completes a 5- or 6-membered nucleus, are prepared by condensing a compound of formula I:- <FORM:0874809/IV(c)/3> with a quaternary cyclammonium salt having a reactive alkylthio, alkylthiovinyl or acetanilidovinyl group, or with a p-dialkylaminobenzaldehyde.  Examples of dyes are given wherein R1 is methyl or phenyl and D completes a benzthiazole, benzoxazole, indolenine or 2- or 4-quinoline nucleus.
Patent GB-1412483-A (GB)
Title: Lubricant compositions
IPC: C10M169/04
Filed: 1973-01-29
Abstract: 1412483 Lubricants TENNECO CHEMICALS Inc 29 Jan 1973 [7 Feb 1972] 4319/73 Heading C5F A lubricant composition comprises (a) 95-99 wt. per cent of a base lubricant having V.I. at least 50 (Dean and Davis scale), viscosity at 100‹ F. of 80-180 cST and containing (i) 85-100 wt. per cent of where R is C 1-13  alkyl, R<SP>2</SP> is C 5-18  alkyl or cycloalkyl, y=0 to 4, n= 1 to 3, n+y# 5, and (ii) 0-15 wt. per cent of alkyl acrylate copolymer or alkyl methacrylate copolymer; and (b) 1-5 wt. per cent of a stabilizer additive comprising (i) 0À2-2À5 wt. per cent hindered phenol antioxidant, (ii) 0À1-2À0 wt. per cent sec- or tert-amine antioxidant and (iii) 0À05-1 wt. per cent monocarboxylate of 1-salicylalaminoguanidine. Many esters, phenols and amines (including heterocyclic compounds) are specified. A suitably hindered hydroxylamine may serve as both antioxidants (i) and (ii). The compositions are used for lubricating reciprocating air compressors or bearings, and also as heat transfer fluids, vacuum pump oils, gear oils, transformer oils and mould release agents. Mixed with other materials, they are useful as automatic transmission and brake fluids.
Patent GB-177001-A (GB)
Title: Improved wooden packing case
IPC: B65D6/28
Filed: 1921-02-07
Abstract: 177,001. Dow, J. D. Feb. 7, 1921. Corner joints.-To detect pilfering, a wooden packing-case is so constructed that removal of any part tends to fracture the remainder of the case. The top and bottom are fitted inside the sides b and outside the ends a, and the ends are fitted outside the sides. The top and bottom are nailed to the ends, the ends to the sides, and the sides to the top, bottom, and ends. The ends a may be rabbeted at c, Fig. 3, to take the sides, or vertical battens g, Fig. 5, may be secured to the ends, the sides being nailed to the battens instead of to the ends.
Patent GB-945034-A (GB)
Title: Electron tubes having a tunable resonant cavity
IPC: H01J25/24
Filed: 1960-02-08
Abstract: 945,034. Velocity modulated tubes; tuning cavity resonators. EITEL-McCULLOUGH Inc. Feb. 8, 1960 [March 18, 1959], No. 4370/60. Headings H1D and H1W. A reflex klystron or other electron discharge tube comprises an external resonant cavity 78 tuned by a conductive plunger 102 extending into the cavity, the plunger and cavity wall meeting at a contact line located in the region of a current node along a coaxial transmission line formed between the plunger and cavity wall. The annular spaces 112, 114, 108a form a folded transmission line having a length equal to an integral number of half-wavelengths, the line of contact between the screw-threaded plunger 102 and sleeve 104 being situated at a distance along the line equal to an odd number of quarter-wavelengths. The annular space 112, 114 may alternatively be formed in the plunger. The external cavity is of rectangular section and is coupled to the internal cavity 74 by a vacuum-sealed ceramic window 84. Coupling between the cavities is regulated by plug 91. The cathode 30 and the reflector 62 are both supported by piles of alternating metal and ceramic annuli, e.g. 24, 25 and 56, 58, 60, all brazed together. The tube also comprises a cylindrical heat shield 32, a cylindrical focusing electrode 34, gun anode and grid 64, 68. Metal annuli 58, 96 and 44, 94 are welded together.
Patent GB-471658-A (GB)
Title: Improvements in or relating to apparatus for bending solid or hollow rods
IPC: B21D7/024
Filed: 1937-02-15
Abstract: 471,658. Bending tubes &c. BANNING AKT.-GES., J., and KNIPP, G. Feb. 15, 1937, No. 4453. Convention date, Feb. 20, 1936. [Class 83 (iv)] In a device for bending tubes &c. rotation of the former is prevented until the tube is clamped. Rotation of a wheel 6 pulls a link 10 to actuate a clamp 2 retained in position by a detent 12 and co-operating with a former 1. On further rotation of the wheel an adjustable cam 13 frees the detent 12 and the former and clamp rotate to effect bending. The clamp is secured to the former by a bar 3. In a modification the former is freely mounted and is rotated by a projection on the clamp.
Patent GB-453097-A (GB)
Title: Improvements in and relating to safety razors
IPC: B26B21/50
Filed: 1936-02-14
Abstract: 453,097. Sharpening razors. LEHMANN, F., 80, Rosengartenstrasse, and WYSS, O. F., 27, Talstrasse, both in Zurich, Switzerland. Feb. 14, 1936, No. 4543. Convention date, Feb. 15, 1935. [Class 60] [See also Group XIV] The blade 8 is held between a cap 3 secured at its ends to the body 2 of the razor and comb-like honing jaws 9 pressed upward by springs 10. The cap is also formed with comb-like honing parts 3<a>, the angle in elevation between the honing surfaces being the same as that of the cutting edge of the blade. The blade is given a gyratory motion by means of a spindle passing up the handle and terminating in a spur wheel 5 in gear with wheels 6 carrying pins 7 which pass into slots in the blade. A detachable crank-handle or an electric motor mounted in the handle is provided for turning the spindle. The mechanism may be used for reciprocating the blade during shaving by neutralizing the component of motion at right angles to the edges by means of oval slots 14<a>, Fig. 14. The component may be restored for honing purposes by attaching the blade by screws 17 to a sliding plate 15 having claws 15<a> adapted to engage the pins 7 as shown. When not in use the razor may be kept in a vessel 20, Fig. 16, containing glycerine or other sharpening adjuvant and having recesses 21 in the sides for receiving the ends of the razor head which is held in place by means of the cover 20<a>. The honing surfaces may be contained in a housing 18 instead of in the razor and the housing may be secured to the bottom of the vessel 20. The amplitude of the gyrations of the blade in this case must be greater than before and for this purpose the throw of the crank-pins 7 is increased. To enable the blade to take up a symmetrical position the pin slots 27 in the blade may be out of centre lengthwise, Fig. 19, a spring 28 being fitted to hold the blade in either the honing or shaving position.
Patent GB-575374-A (GB)
Title: Improvements relating to flame-cutting machines
IPC: B23K7/00
Filed: 1944-03-14
Abstract: 575,374. Dividing by fusion. WILD & CO., Ltd., M. B., and BOUCHER, J. W. March 14, 1944, No. 4735. [Class 83 (iv)] In a flame cutting machine of the type comprising a motor-driven carriage a, e, traversed along a horizontal track b and connected by jointed links d, d<1> to a bar c carrying a burner or burners f and a tracer g rotated by a separate motor so as to co-operate with a pattern, a tie consisting of a rod in tension and a surrounding tube in compression interconnects the ends of each link to stiffen the link and to damp undesirable vibrations in the bar and links. Each link which comprises a circular bar and a pair of bifurcated members h has in association therewith a longitudinal tie i consisting of an inner rod j and an outer tube k. One end of the rod j passes through a hole in the adjacent member h and is headed or screwed into the member, the other end of the rod passing freely through a transverse pivot pin m carried by the other member hand being provided with a nut n to-tension the rod bearing either directly or through a spacing piece o on one side of the pivot pin. One end of the tube k abuts against one member hand the other end is screw-threaded to engage a collar p which bears either directly or through a spacing piece q against the other side of the pivot pin to put the tube in compression.
Patent GB-1498527-A (GB)
Title: Apparatus for preventing overcurrent or overvoltage
IPC: H02H3/20
Filed: 1975-02-04
Abstract: 1498527 Overcurrent and overvoltage circuits MATSUSHITA ELECTRICAL INDUSTRIAL CO Ltd 4 Feb 1975 [4 Feb 1974] 4735/75 Heading H2K A circuit responding to overcurrent or overvoltage comprises a network 6 constituted by two interconnected jugfets (Fig. 2) together providing a negative-resistance characteristic which cuts off completely above a certain voltage, and a load-current switch 4 controlled by the network 6. Switch 4 may be a transistor, an FET or a Darlington pair.
Patent GB-130698-A (GB)
Title: Improvements in Cylinders of Internal Combustion Engines.
IPC: F02F1/42
Filed: 1918-03-18
Abstract: 130,698. Royce, F. H., and Rolls-Royce, Ltd. March 18, 1918. Drawings to Specification. Cylinders, construction of. - The end of the combustion chamber is spherical, and the two admission and two exhaust valves radiate from it. The axes of the valve levers are normal to planes containing the axes of the valves. Specifications 15812/15, [Class 83 (iv), Metals, Working], and 17957/15, [Class 83 (iii), Metals, Cutting], are referred to. Reference has been directed by the Comptroller to Specification 141,949.
Patent GB-608091-A (GB)
Title: Improvements in gas separation process
IPC: C07C7/11
Filed: 1946-02-15
Abstract: An ethylene fraction and a propylene fraction are separated from a gas mixture by contacting the mixture with benzene, toluene, or ethyl benzene, ethylene being separated as the gaseous phase and propylene being preferentially dissolved and recovered by heating the solution. Ethylene dissolved by the solvent may be removed by heating the liquid in the lower part of the absorption tower (in which case the original gas mixture is introduced higher up the tower), or by fractionation in a separate column.  The solvent stripped from propylene may be cooled and recirculated to the absorption tower. When benzene or ethyl benzene is used as the solvent, the ethylene-containing gas from the absorption tower may be mixed with benzene and contacted with a Friedel-Craft catalyst to form ethyl benzene.ALSO:In the preparation of ethyl benzene from benzene and ethylene by the Friedel-Craft reaction, the ethylene is obtained by treating a gas mixture containing ethylene and propylene with benzene or ethyl benzene to remove the propylene (see Group III).