baber/WOPTO huggingface dataset:
Patent GB-1204293-A (GB)
Title: Ammonium salt complexes of, and process for purifying, hexachlorophene and 2,4,5-trichlorophenol
Inventor: MICHAELS EDWIN BERNARD
IPC: C07C39/32
Filed: 1969-02-06
Abstract: 1,204,293. Ammonium salt complexes of and methods of purification of 2,4,5-trichlorophenol and hexachlorophene. E. B. MICHAELS and J. W. LEE. 6 Feb., 1969 [6 Feb., 1968], No. 6525/69. Heading C2C. The invention relates to a process for preparing a complex of hexachlorophene or 2,4,5-trichlorophenol which comprises adding to a solution of the hexachlorophene or 2,4,5-trichlorophenol in a solvent in which the complex is insoluble ammonia gas, aqueous ammonia, or ammonium carbonate in an amount sufficient to form a precipitate of solid complex. Pure hexachlorophene or 2,4,5-trichlorophenol may be obtained by heating the separated solid precipitated complex to free ammonia therefrom.
Patent GB-1294135-A (GB)
Title: A process and apparatus for the direct-current arc welding of workpieces
Inventor: BARLOW KENNETH FREDERICK
IPC: B23K9/10
Filed: 1969-02-06
Abstract: 1294135 Welding by fusion UNITED KING- DOM ATOMIC ENERGY AUTHORITY 28 April 1970 [6 Feb 1969] 6554/69 Heading B3R Arc welding apparatus includes means for determining whether or not a stable arc has been established, and means for switching off the welding current if an unstable arc is found to exist after an initial period usually sufficient for the establishment of a stable arc. As shown, a variable potentiometer 7 (Fig. 3) is set to a reference voltage, say 10 V., corresponding to a stable arc. The potentiometer is connected in circuit with a reference resistor 9 and relay contact DR-1; terminals A, B of this circuit are connected across the main current conductors of the welding circuit (Fig. 1). D.C. welding current is supplied to the torch 2 from rectifier 1; the open circuit voltage may be 100 V. After striking of the arc, the voltage across a relay SR/3 between terminals A, B drops from the open circuit voltage to the arc voltage. If the arc is stable, relay SR/3 experiences a voltage drop of say 10 V. which is insufficient to maintain it energized and, as a result, a weld sequence timer is energized to thereafter control the weld cycle as is usual. If, however, the arc is unstable, relay SR/3 experiences a voltage which may fluctuate in the range 25-40 volts which maintains it energized and prevents the timer being energized. The arc voltage is supplied to terminals A, B so that where the applied voltage exceeds the reference voltage on potentiometer 7, a voltage difference across reference resistor 9 causes a relay FR/1 to be energized, opening its contacts (FR-1). (Fig. 2, not shown), to shut off the welding current. Comparison of the arc and reference voltages is delayed by a delay relay DR/1 whose contact DR-1 retains the reference circuit open for a period usually sufficient to allow a stable arc to be established. This period may be about 10 milliseconds. Thereafter contact DR-1 closes. In the event of an unstable arc being determined, the welding sequence is terminated in a few milliseconds from attempting to strike the arc, before damaging heating of the work can occur. Additionally, the commencement of welding is prevented by harmful impurities in the arc shielding gas; these impurities cause the arc voltage to be higher than under stable arc conditions. The apparatus includes a variable resistor 4 for welding current control, and a spark igniter 5. A Zener diode 12 in parallel with reference resistor 9 prevents a too large voltage input to relay control amplifier 11. Arc ignition can be assisted by providing a large capacitor across the electrode/workpiece gap.
Patent GB-437007-A (GB)
Title: Improvements in and relating to collapsible tubes
IPC: B65D47/24
Filed: 1935-03-01
Abstract: 437,007. Closures for collapsable tubes. LINDBECK, B., 10, Vattugatan, Stockholm. March 1, 1935, No. 6556. [Class 125 (iii)] A collapsable tube 1 having a threaded neck 2 and a cap 3 which screws thereon, has one or more outlets 5 in the wall of the tube and a central outlet 6 in the cap. According to the invention the cap is provided with a lateral projection 8 which serves as a finger grip and is adapted to co-operate with a stop 9 in preventing the removal of the cap.
Patent GB-387149-A (GB)
Title: Hand operated apparatus for seaming preserving cans
IPC: B21D51/32
Filed: 1932-03-04
Abstract: 387,149. Seaming. GRUBE, F., 16, Waisenhausweg, Halle-on-Saale, Germany. March 4, 1932, No. 6582. [Class 83 (iv).] A support for a can during the seaming of an end thereto comprises a plate i having a conical point k engaging a recess in the base plate, and a plate a having an extension with a conical recess n engaged by a clamping screw m, the can being intermittently rotated during the operation, by a pawl and ratchet e, g, upon oscillation of a lever d. A lever c carries the seaming roller b and is also oscillated during the operation while the roller b is fed into the work by a screwed shaft z.
Patent GB-878281-A (GB)
Title: Improvements in or relating to a cutting tool for producing indented surfaces
IPC: B23D77/02
Filed: 1958-03-03
Abstract: 878,281. Knurling &c. MILLER, K. March 3, 1958 [March 2, 1957], No. 6673/58. Class 83 (3). In a cutting tool 1 for indenting cylindrical surfaces 9 by three gear-like cutting-wheels 4, two of the wheels are supported on surfaces 3 which are inclined in the same direction and the other is supported on a surface 3 inclined in the opposite direction circumferentially of the tool. In Fig. 2, the cutting teeth 6 on each wheel are parallel to the axle on which the wheel is freely rotated by contact with the rotating and axially fed work. A knurled surface is thus produced. The teeth may be disposed at an angle to the wheel-axis (Fig. 5, not shown). The bore in the tool may extend into a centring section 11 and the shank 10, and chips may pass through openings 12 through which coolant is supplied.
Patent GB-1033267-A (GB)
Title: Water-soluble monoazo dyestuff and processes for its manufacture
IPC: C09B62/51
Filed: 1964-02-19
Abstract: The invention comprises the water-soluble monoazo dyes of formula <FORM:1033267/C4-C5/1> wherein X is a hydrogen, sodium or potassium atom.  The dyes are prepared by the usual coupling procedure using appropriate components or by treating the corresponding dye having in meta-position to the azo group a 2-hydroxyethyl-sulphone residue with sulphuric acid.  The dyes give red shades on wool, silk, leather, synthetic polyamides and polyurethanes and natural and regenerated cellulose.  Examples describe the preparation of the dyes by both processes.
Patent GB-718137-A (GB)
Title: Polymeric compositions
Inventor: JONES EVAN ISLWYN
IPC: C08K5/109
Filed: 1952-03-19
Abstract: Grafted acrylonitrile polymers are dissolved in a mixture of ethylene carbonate and water wherein the weight of ethylene carbonate is greater than that of the water.  The grafted acrylonitrile polymers are obtained by polymerizing acrylonitrile alone, or together with a copolymerizable monomer such as vinyl acetate, methyl methacrylate, or vinyl pyridine, in the presence of one or more other polymeric substances such as polyvinyl alcohol, partially hydrolyzed polyvinyl acetate, or cellulose methyl ether.  The solutions may also contain salicylic acid as an ethylene carbonate stabilizer.  The solutions may be formed into p  filaments by spinning into a coagulating bath consisting of an aliphatic dihydric alcohol, a metal salt solution, or, preferably, water, both the solution and the water being at a temperature of 85-87 DEG C.  Specification 715,194 is referred to.
Patent GB-684383-A (GB)
Title: Medical electrode
IPC: A61N1/04
Filed: 1951-03-27
Abstract: 684,383. Electro-medical apparatus. PIAR, E. A. March 27, 1951, No. 7083/51. Class 81 (ii). A medical electrode includes a substantially rectangular metallic body 50, Fig. 8, having, on its lower face, a longitudinal slot in which a plurality of spaced metallic blade members and a pair of guide members are mounted. The guide members are secured to the metallic block 50 by screws 55, 56. The blade members, having edges 76 and being spaced by members 75, are mounted between the guide members and held in position by a screw 65. The edges 76 of the blades are equally spaced 10-15 thousandths o an inch apart and project be yond the edges of the guide members 0.5-1 thousandths of an inch. The metallic block is mounted on a conducting handle 41 and connected with a cabinet (not shown) contain ing apparatus for providing an electric current of ¢-2 milli amperes from a rectifier or a battery. An indifferent elec trode is provided for connec tion with the patient. In an alternative construction (Fig 5) the electrode secured to the handle 41 is in the form of a semicylindrical block 80 or which cutting edges 82 are formed 15 thousandths of an inch apart. The electrode i: used to remove hard tissue from the scalp in the cure of baldness.
Patent GB-254235-A (GB)
Title: Improvements in and relating to combination containers and knives
IPC: B65D8/02
Filed: 1926-03-15
Abstract: 254,235. Harris, E. M. March 15, 1926. Boxes combined with knines.-A case or container 10, particularly intended for sheet rubber patching material, has the bottom 16 formed with an elongated slot 15 in which a cutting-blade 20 is pivoted adjacent one end thereof ; the blade can be turned on its pivot 18 to lie within the slot and is held in that position by a protuberance 23 on the blade engaging one edge of the slot. An ear 21 on the blade limits its closing movement and its movement to the open position is limited by the flange 13 of the end of the case.
Patent GB-230871-A (GB)
Title: Improved safety device for guns
IPC: F41A17/20
Filed: 1925-03-17
Abstract: 230,871. Pantoflicek, B. March 17, 1924, [Convention date]. Ordnance breech mechanism; machine guns.- A safety device comprises a ball or roller controlled by gravity or by inertia and adapted to prevent or allow relative movement between two parts, one of which is mounted on a cylindrical bore of the other. Fig. 1 shows a gravityoperated device, applicable especially to mortars, which permits of firing only when the gun is elevated above a certain angle. A firing pin o bolt 2 adapted to slide in a cylindrical boring in a block 5 carried by the barrel is, in the position shown, locked by a ball 1. When the gun is elevated, the ball rolls into the passage 4 and frees the firing pin. Fig. 3 shows an inertiaoperated device applicable especially to guns on aircraft to prevent firing when the machine is being retarded on landing. On retardation of the whole gun, a block 7 moves relatively forwards and presses a ball 1 upwards into a notch 9, thereby locking the firing holt 2.
Patent GB-286698-A (GB)
Title: Receiving or amplifying circuit with incandescent cathode tubes having cathodes directly heated by alternating current
IPC: H01J1/13
Filed: 1928-03-08
Abstract: 286,698. Siemens & Halske Akt.- Ges. March 9, 1927, [Convention date]. Vacuum tubes.-In receiving or amplifying circuits with tubes having incandescent cathodes directly heated by alternating current and having grids connected to the electric centre of the cathodes, the cathodes of all the tubes operate at a voltage less than 1 volt and the cathode of the input tube has the lowest filament voltage. The filament of the input rectifier tube may have a voltage less than 0.7 volts, for example, may be of wolfram 0.1 mm. in diameter and 15 mm. long covered with alkaline-earth metal and taking 0.5 amps at 0.5 volts. The Specification as open to inspection under Sect. 91 (3) (a) comprises also valves with short, thin filaments heated by small currents which are steadied by resistances, for example, after rectifying. This subject-matter does not appear in the Specification as accepted. Reference has been directed by the Comptroller to Specifications 256,994 and 272,887.
Patent GB-1066425-A (GB)
Title: Remote control for rock drill
IPC: E21B19/086
Filed: 1966-02-18
Abstract: 1,066,425. Percussive drills. GARDNERDENVER CO. Feb. 18, 1966 [March 17, 1965], No. 7282/66. Heading B4C. A control system for a pneumaticallyactuated rock drill 13 and feed motor 15 comprises a main valve 21 having a spool valve (53, Fig. 3, not shown), movable to a first position in which a supply port (73) communicates with a port (84) to effect a retracting movement of the drill along a mounting 14 and to a second position in which the supply port communicates with a port leading to the drill motor and a port (83) to effect a forward feed of the drill, an auxiliary valve 30 being provided to exhaust pressure applied to the spool valve in order to maintain it in its second position. In operation, with the valve spool (58) in its lowest position (Fig. 3, not shown) air is fed through the port (73) and port (84) to the feed motor 15 to retract the drill. Upon raising the spool against the action of a spring (68) by means of a handle (22), air flows from the port (73) to the drill 13 via a hose 24 and also, via a passage 95 in the spool, and the port (83) to the feed motor so as to effect a forward feed; a throttling groove (94) is formed in the surface of the spool so that by rotating the latter the rate of feed may be controlled. At the end of the forward feed stroke, the auxiliary valve 30 is actuated by means of an abutment 32 on the drill so as to exhaust the air below the spool thereby allowing it to drop to its initial position under the action of the spring; an alternative exhaust valve (101) is provided on the handle 22. If it is required to operate the drill and feed motor intermittently, such as for starting a hole, the spool is raised and rotated to bring a port (92) therein into line with the port (83) and then by slightly oscillating the spool the feed is intermittently controlled. At the same time, by raising and lowering the spool slightly, a pair of V-notches (93) provide a small flow of air to the drill motor.
Patent GB-842268-A (GB)
Title: Improvements in or relating to electric pulse distributing circuits
Inventor: BUBB ERIC LAWRENCE
IPC: G06F1/10
Filed: 1957-03-05
Abstract: 842,268. Circuits employing bi-stable magnetic elements. POSTMASTER GENERAL. March 5, 1958 [March 5, 1957], No. 7322/57. Class 40 (9). In a distributer arrangement comprising magnetic cores X49- X53 and X62-X64 having rectangular hysteresis characteristics and provided with input windings A, drive windings B and output windings C, D connected to respective transistors VT49-VT53 and VT62-VT64, the cores X49, X50 alone are initially in the " set " magnetic state, and a pattern of output pulses is produced at terminals T3-T9 in response to a start pulse at terminal T1 followed by the application of a succession of driving pulses α7 to terminal T2 and to the drive windings of cores X51- X53, X62-X64. The start pulse " sets " core X51 alone, while a driving pulse " resets " all the cores X51-X64, so that the first driving pulse " resets " core X51 and produces a resultant output which " sets " X52. When the setting of X52 is almost complete, the emittercollector current of transistor VT51 becomes sufficient to neutralize a negative bias potential permenently applied to the A windings of cores X49 and X50. A temporary resetting of core X49 therefore takes place and an output pulse is obtained at terminal T3. The second drive pulse transfers the set condition from core X52 to X53 and develops an output pulse at terminal T5. Also core X50 is temporarily reset and produces an output pulse at T4 due to increase of emitter-collector current of transistor VT52. Subsequent driving pulses will cause an output pulse to be developed in turn at terminals T6, T7 and so on as the " set " condition is transferred to core to core, while at the same time temporary resetting of core X50 takes place and produces output pulses at T4. The cores X62 to X64 may have their A windings connected to a common positive-potential source instead of to the B winding of core X50, in which case pulses will be developed at terminals T7, T8, T9 in turn without corresponding pulses being produced at T4.
Patent GB-1472502-A (GB)
Title: Sulphonylurea derivatives
IPC: C07D223/16
Filed: 1975-02-21
Abstract: 1472502 Sulphonylureas F HOFFMAN-LA ROCHE & CO AG 21 Feb 1975 [22 Feb 1974] 7337/75 Heading C2C Novel compounds (I) (including salts thereof) wherein R<SP>1</SP> represents a hydrogen atom or a C 1 -C 6  alkyl or C 3 -C 8  cycloalkyl group and R<SP>2</SP> represents a C 1 -C 6  alkyl or C 3 -C 8  cycloalkyl group or R<SP>1</SP> and R<SP>2</SP> together with the nitrogen atom to which they are attached represent a heterocyclic ring; and R<SP>3</SP> represents a C 1 -C 8  alkyl, C 3 -C 8  alkenyl-alkyl or C 5 -C 8  cycloalkyl group, a (2 or 3)-(cyclopenten or cyclohexen)-1- yl group which may be substituted by C 1 -C 4  alkyl, or a C 1 -C 4  alkyl C 5 -C 8  cycloalkyl, C 7 -C 10  endoalkylene-cycloalkyl, C 3 -C 8  cycloalkyl C 1 -C 4  alkyl or C 5 -C 8 -cycloalkenyl C 1 - C 4  alkyl group, are made by standard methods. The corresponding -SO 2 NH 2  compounds and [(3 - dimethylcarbamoyl - 2,3,4,5 - tetrahydro- 1H - 3 - benzazepin - 7 - yl)sulphonyl]carbamic acid ethyl ester are also prepared. Pharmaceutical compositions having blood sugar lowering action contain (I) as active ingredient. Administration is orally or parenterally.
Patent GB-788584-A (GB)
Title: Electrodeposition of chromium
IPC: C25D3/04
Filed: 1956-03-08
Abstract: 788,584. Electroplating with chromium. HARSHAW CHEMICAL CO. March 8, 1956 [March 28, 1955], No. 7340/56. Class 41. To reduce sludging in chromium-plating using a lead or lead alloy anode in an aqueous bath containing chromic acid and acetate, fluosilicate, or fluoborate as catalyst ion, 0.4 to 5 grams of cobalt is added to each litre of the bath. Typically the bath contains per litre 100 to 700 grams chromic acid, 0.7 to 40 per cent of this weight of catalyst ion and may additionally contain sulphate ion in a concentration of 0.1 to 1 per cent of the weight of chromic acid. The temperature of operation may be 60 to 145 F. and the cathode current density may be 90 to 600 amps./sq. ft. The cobalt may be added as the salt of the catalyst ion or as sulphate or carbonate.
Patent GB-556840-A (GB)
Title: Improvements in or relating to mechanically propelled bucket tipping vehicles
IPC: B62D21/06
Filed: 1942-05-30
Abstract: 556,840. Tipping vehicles. BOYDELL & CO., Ltd., E., and COLDWELL, J. D. May 30, 1942, No. 7345. [Class 108 (i)] [Also in Group XXXI] The bucket 34 of a tipping vehicle is provided with rockers rolling on the upper edges of the frame 10, and is guided by bosses 30 on the bucket engaging with forked brackets 29. As the pocket tips forward and the bosses 30 disengage from the brackets 29, rollers 27 on the frame engage in recesses formed in brackets 28. Specifications 551,316, [Group XXXI], 551,373, 551,403, 554,032, [both in Group XXXI], and 554,765 are referred to.
Patent GB-1281781-A (GB)
Title: Liquid cooled motor vehicle engines
Inventor: LECNAR JOSEF
IPC: F02B29/04
Filed: 1970-02-16
Abstract: 1281781 Cooling vehicle engines USTAV PROVYZKUM MOTOROVYCH VOZIDEL 16 Feb 1970 [28 Feb 1969] 7361/70 Heading F4U [Also in Division F1] The air delivered by an exhaust gas or mechanically driven compressor 2 to a piston engine or turbine of a motor vehicle is cooled by a liquid flowing through a circuit, including an intercooler 3, a radiator 4 and a pump 7, which is independent of the main cooling liquid circuit including a radiator 8.
Patent GB-695619-A (GB)
Title: Muzzle attachment for discharging rifle grenades
IPC: F41C27/06
Filed: 1952-03-24
Abstract: 695,619. Muzzle attachments; sights. ANSTALT FUR DIE ENTWICKLUNG VON ERFINDUNGEN UND GEWERBLICHEN ANWENDUNGEN ENERGA. March 24, 1952 [April 6, 1951], No. 7562/52. Class 119 A muzzle attachment 1 for firing .a grenade 3 has a sleeve for fitting it to the end of a rifle barrel the sleeve having articulated to it a sight 2 of U-shaped cross-section so that it fits over the sleeve when folded down over it. The sight shown is pivoted at 4 to the sleeve and has projections 5, 6 which fit into recesses in the sleeve when in the operative and inoperative positions respectively. The sight has notches 7 for different ranges. As shown in Fig. 1. the sight constitutes a backsight, the selected notch being aligned with the edge of the grenade, when sighting, so that the grenade in effect functions as a foresight..
Patent GB-1359443-A (GB)
Title: Method and device for manufacturing bags from tubular foil in a continuous process
IPC: B31B23/00
Filed: 1972-02-18
Abstract: 1359443 Making bags L VAN DER MEULEN 18 Feb 1972 [23 Feb 1971] 7566/72 Headings BSD and B5K Apparatus for making bags from a thermoplastics tubular foil 9 comprises a feeder 8, a drum 2 having at least one resilient anvil 17 co-operating with a rotating cutter 10 and at least one counter-sunk sealer 15 for heat-sealing the trailing end of a blank severed from the tube 9. Each sealer 15 (two shown) comprises a pair of pivotable jaws 16 interconnected by gears 23, 24 and provided with electrical resistance wires. Rotating fingers 22 urge the trailing end of each blank towards a sealer 15 as the blank is carried round on the drum 2 beneath retaining belts 11. Each blank is folded twice transversely, once by a respective folder blade 14 in the drum 2 co-operating with a slit 18 in a roller 3 and once by a blade 19 in the roller 3 co-operating with a slit 20 in a roller 4 before being folded twice longitudinally by a set of three rollers 27-29. To accommodate a change of bag size, a cutting/sealing station may be rendered inoperative by retracting a resilient anvil 17 towards the drum centre. The position of the folding blades 14 may be adjusted by turning a connecting arm 25.
Patent GB-539319-A (GB)
Title: Improvements in rotary cutting machines
IPC: B23C3/00
Filed: 1940-04-27
Abstract: 539,319. Wood cutting machine details. NIBLOCK, F. April 27. 1940. No. 7586. [Class 145 (i)] [Also in Group XXII] A rotary cutting machine of the kind described in Specification 321,306, [Class 145 (i)], having curved cutter blades mounted at an adjustable angle to the axis of a rotary spindle to vary the curvature of the profile produced on a transversely fed work piece is provided with means for varying the said curvature during operation by mounting the cutter 1 so that it may be rotated about a radial axis, during the actual progress of the cutting. The blade is secured in a carrier 2 the hub 6 of which is connected by three worm gearings 8, 11 and 14 arranged in series, to a shaft 14a carrying a star-wheel 15 which is rotated by a fixed striker at each rotation of the spindle 5. The ends of the cutter carrier are normally gripped by spring pressed cheeks 17 engaging an arcuate rib 19, the cheeks being intermittently separated to allow the cutter movement by means of polygonal members 20 actuated by another starwheel 24 and worm gearing 22. The cutter may be used for metal, wood, and other material. If the article to be machined is convex through-out a concave cutter is employed but a convex cutter may be used to shape articles which have a convex surface merging into a flat surface and then into a concave surface by gradually decreasing the cutter inclination during working. In cutting the backs of propeller blades which have a convex surface merging into a flat surface a second fixed straight-edged cutter on the opposite side of the frame may be arranged to remove the upstanding sides of the concave portion so that the result is a convexsection curve of increasing radius merging into a flat surface.