baber/WOPTO huggingface dataset:
Patent GB-1009077-A (GB)
Title: Automatic screw thread chasing device
IPC: B23B11/00
Filed: 1964-05-25
Abstract: 1,009,077. Lathe details. PNEUMO DYNAMICS CORPORATION. May 25, 1964 [June 5, 1963], No. 21476/64. Heading B3T. In a six spindle automatic lathe 20, Fig. 1, a chasing tool 32 is moved along path AB, Figs. 2, 3 to cut a thread on the workpiece 28, by a lead screw 34, is retracted from B to C by a spring 54, Fig. 4, is moved along path C, D by a pneumatic piston assembly 55, Figs. 2, 3 and is moved along path DA to re-engage with the work by cams 56, 60 and follower 61. Tool 32 is held in a clamp 47, Fig. 3, mounted on a slide 48, the latter being movable towards and away from the work in ways 49 formed on a second slide 50. Slide 50 is movable parallel to the work axis in ways 52 formed in a base 53 forming part of a casing 35. Casing 35 is mounted on a cross slide 22 of lathe 20, Fig. 1, and the cross slide is fed continuously towards the work by cams mounted in column 26. Lead screw 34 is continuously driven in synchronism with the workpiece by a motor 44, Fig. 1, through a gear train and a shaft 36, and co-operates with a nut segment 46, Figs. 3, 4 carried by slide 48 to move tool 32 along path AB. During the movement of the tool along path AB cam 56 urges cam 60 downwardly, Fig. 5, so that slide 48 is held in its forward position through follower 61, with the tool engaging the work. At the end of the chasing stroke, when the tool has reached point B, a pin 80, Fig. 4, rides up an adjustable cam 86 and moves cam 60 upwardly so that spring 54 retracts slide 48 along path BC to disengage the tool from the work, and also to disengage nut segments 46 from the lead screw. Slides 48, 50 are moved along path CD by pneumatic piston assembly 55, which also acts as a dashpot. Cam 56 actuates cam 60 to move slide 48 forwardly to re-engage the tool with the work, and a further cycle is completed. The lead screw may rotate at half the speed of workpiece 28, and may be replaced by one of opposite band.
Patent GB-1086123-A (GB)
Title: Improved container opening means
IPC: B67B7/48
Filed: 1965-05-20
Abstract: 1,086,123. Opening containers. ROCK-OLA MANUFACTURING CORPORATION. May 20, 1965 [July 3, 1964], No. 21496/65. Heading B8D. A handle 15 is turned to operate a crank-pin 74 thereby lowering a pair of piercing members 13, 14 through the top wall 16 of a can, the member 13 forming a vent opening in the can while the member 14 forms a pouring opening and, being hollow, enables the escape of gas trapped within the can. The gas is diverted by a cap 54 and guard 80 into a bucket 82. The members 13, 14 are held in a thermostatically controlled heater block 50 which sterilizes them. A spring 71 assists in raising the block 50, members 13, 14 and an electrical housing 60 as the handle 15 is further turned. The device may be power-driven.
Patent GB-717386-A (GB)
Title: Improvements in the degasification and gasification of fine-grained bituminous fuels
IPC: C10B49/10
Filed: 1952-08-27
Abstract: 717,386. Distilling and gasifying solid bituminous fuels. BADISCHE ANILIN- & SODAFABRIK. Aug. 27, 1952 (Aug. 29, 1951], No. 21515/52. Class 55 (1) In an intermittent process for distilling and at least partly gasifying fine-grained bituminous fuels in which the fuel is set in a whirling motion during a " make" period by upward passage through a bed of super-heated steam or a gas containing it and comprising " blow periods in which air is blown downwardly through a quiescent fuel bed ; the blow gases are combusted in a heat accumulator in which the steam or gas containing steam during the " make " period is superheated by passage -therethrough. As shown fine-grained fuel is fed to a vessel 2 through a hopper at 12 during a " make period, steam passing through line 10, a heat accumulator 5 and line 4 into the .vessel 2 maintaining the fuel therein in a whirling motion, the resulting gases being led off through a cyclone separator 13. When the temperature in the heat accumulator 5 falls to about 700‹ C. the steam is cut off and air is admitted to the vessel 2 through line 3, the blow, gases being combusted in the heat accumulator 5 by secondary air admitted at 6. Gases from the heat accumulator 5 pass through a waste heat boiler 7 and by line 8 to the stack. The "blow" period is continued until a temperature of 1000‹ C., or higher if complete gasification of the fuel is desired, in the heat accumulator when the air supply is interrupted and steam is again passed through the heat accumulator to the vessel 2. Coke or ash depending on the extent to-which the fuel is gasified is withdrawn through a worm conveyer at the base of the vessel 2.
Patent GB-1164921-A (GB)
Title: Electrostatically Treated Filaments and Non-Woven Webs Made Therefrom.
IPC: D01D11/00
Filed: 1967-05-09
Abstract: 1,164,921. Electrostatically treated filaments. E.I. DU PONT DE NEMOURS & CO. 9 May, 1967 [31 May, 1966], No. 21519/67. Heading B5B. [Also in Division D1] A number of synthetic polymer filaments travelling as a group (e.g. a bundle or tow) in which the filaments are substantially untwisted and unentangled with one another are triboelectrically charged by rubbing contact with a solid surface, an alkali metal salt having been incorporated in the filaments prior to the rubbing contact in a proportion of at least 0À02 gram atom (preferably at least 0À1 gram atom) of alkali metal component of the alkali metal salt per 100 lbs. of filament. The filaments are preferably polyester filaments and the alkali metal is preferably sodium, most preferably incorporated in the filaments in the form of sodium acetate. The filaments travelling as a group may be under tension while they are being triboelectrically charged and may subsequently be forwarded by means of a jet device towards a web laydown zone, the tension on the filaments being released at the exit of the jet device thereby permitting them to separate due to the repelling effect of the applied electrostatic charge, the filaments while thus separated being collected as a non-woven web. The filaments may be stretched prior to entering the jet device. The filaments may be charged by corona charging in addition to triboelectric charging prior to entry into the jet device. When the alkali metal incorporated in the polymer is in the form of the acetate, it may be added to the polymer precursors prior to polymerization or blended with the polymer prior to the polymer being spun.
Patent GB-242599-A (GB)
Title: Improvements in landing frames for aeroplanes
IPC: B64C25/00
Filed: 1925-08-27
Abstract: 242,599. Potez, H. C. A. Nov. 6, 1924, [Convention date]. No Patent granted (Sealing fee not paid). Land wheels; shock-absorbers, applications of. -A landing frame comprises an axle 30 in two parts hinged together at 19, so as to be capable of relative movement in a substantitlly vertical plane but not in a horizontal one. The hinge member 17 is secured to a V-shaped member 2 pivoted to the fuelage at 11, 12 by means of a pivot pin 16, formed on the member 2 and passing through the hinge member, the arrangement being such that the member 17 can move only in the plane of symmetry of the aeroplane. In an alternative construction, Figs. 4, 5 the pivot pin 20 is rotatable in the member 2 and the axle joint employs a single pin 23. The outer ends of the axle are connected to elastic struts 5, 6 and to struts 3, 4, which may be elastic, by means of universal joints and sleeves 13, 14 rotatable on the axle. The struts are connected to the fuselage by universal joints. The attachments of the member 2 to the fuselage may be made adjacent those of the struts 5, 6 or those of the struts 3, 4.
Patent GB-692803-A (GB)
Title: A process for the recovery of vitamin b
IPC: C07H23/00
Filed: 1950-08-31
Abstract: Vitamin B12 is concentrated from dilute concentration by bringing the vitamin into contact with activated charcoal which will adsorb it, eluting the vitamin from the charcoal with a solution of aqueous isopropanol or aqueous acetone, bringing the eluate into contact with diatomaceous earth which will adsorb the vitamin, eluting the vitamin from said diatomaceous earth with aqueous pyridine and collecting the portion of pink colour, mixing the collected portion with butanol and collecting the aqueous phase, mixing the aqueous phase with ether and collecting the aqueous phase as a concentrated vitamin B12 solution. The solution thus obtained may be lyophilized to a dry powder, which may be further purified by solution in methyl or ethyl alcohol, followed by absorption with alumina and elution with alcohol.  The eluate is treated with strong mineral acid and evaporated to dryness. The product may be further purified by solvent extraction with aqueous acetone, butanol, cresol, ethyl ether and water.
Patent GB-154706-A (GB)
Title: A self stopping gramophone brake
IPC: G11B17/02
Filed: 1919-09-03
Abstract: 154,706. Evans, F. H. Sept. 3, 1919. Periodic.-A brake for automatically stopping a gramophone is operated by a bar A which is pivoted to a standard 2 attached to the centre pin of the turntable. At the end of a record the bar A engages under the curved end of a rod 4 carried by the tone arm and lifts this rod so as to disengage its catch J from the plate C. The spring 5 then moves the rod so as to actuate the lever D and disengage the fork E from the notch F in the brake rod 6 which then operates to stop the machine.
Patent GB-377439-A (GB)
Title: Improvements in earthing clips
IPC: H01R4/64
Filed: 1931-07-30
Abstract: 377,439. Couplings. GRESTY, H., 243, Chapel Street, Salford, Manchester. July 30, 1931, No. 21728. [Class 38 (i).] An earthing clip comprises a flexible band 8 attached at one end to a plate 1 to which a lever 11 is connected, the end 14 of the lever 11 engaging holes or notches in the band 8, and the construction being such that the lever can be operated to tighten the band around the earth connection, shown as a pipe 15. The attachment of the band 8 to the plate 1 is effected by means of a slot 2 in the plate and an enlargement at the end of the band. The lever 11 is carried under a bridge-piece 4 on the plate 1 and has a forked end 12 which engages a screw 5 passed through a hole 17 in the plate. When the lower nut 6 is screwed downwardly, the end 14 of the lever is raised and the band 8 is tightened. The conductor 16 is clamped between the washers 7 by the upper nut 6. The band 8 may have a number of staggered rows of holes or notches, and an alternative slot of different width from the slot 2 may be provided in the plate 1, for attaching the band to the plate. The hole 17 may be square, to prevent rotation of the screw. The construction shown may be modified by extending the end 12 of the lever 11 to bend beneath the plate 1, and passing through the extension of the lever a screw bearing on the underside of the plate 1 ; a terminal stud with nuts may then be provided on the upper side of the plate.
Patent GB-261857-A (GB)
Title: Improvements in or relating to electrical contacts particularly for use in automatictelephone apparatus
IPC: H01H63/04
Filed: 1925-08-31
Abstract: 261,857. Standard Telephones & Cables, Ltd., (Deakin, G.). Aug. 31, 1925. Automatic exchange selectors.-In powerdriven sequence switches, the make-and-break contact device for controlling the circuit of the clutch magnet consists of a number of separate conducting springs 8 arranged on a rotating disc 5 and so inclined to the surface of the disc that a quick break occurs when they pass beneath the co-operating contact brush 10. The springs 8 are preferably stamped-out and upturned portions of a sheet metal disc 6 mounted on the insulating disc 5. The disc 6 is electrically connected to another conducting disc 11 also mounted on the disc 5 and engaged by a brush 12.
Patent GB-888471-A (GB)
Title: Thermonuclear reactor
Inventor: TUCK JAMES LESLIE
IPC: H05H1/12
Filed: 1957-07-10
Abstract: 888,471. Nuclear fusion reactors. UNITED STATES ATOMIC ENERGY COMMISSION. July 10, 1957, No. 21826/57. Class 39(4) A neutron source comprises a toroidal discharge chamber filled with deuterium and/or tritium, electrodes within the chamber for ionising the gas, electrical means outside the chamber for inducing a pinched discharge current in the gas, and a coil disposed adjacent the radially inward outside surface of the chamber to produce a magnetic field preventing outward radial drift of the discharge. In Fig. 2 the toroidal chamber 11 is of material of relatively high electrical resistance and possessing good corrosion resistance at high temperatures, such as zirconium; it is surrounded by a cooling jacket 12 made up of eight sections joined by flanges 13 along the major diameter and 14 along the minor diameter, insulation being provided between flanges. 14 to prevent circulating currents. Tubes 19 allow sodiumpottassium coolant to pass into the cooling jacket and tubes 20 lead the coolant to an external heat exchanger (not shown). Two diametrically opposed tubes 16 (of which one is shown) pass through the cooling jacket into the vessel 11 and allow it to be evacuated and filled with gas at a pressure corresponding to 10" to 10<SP>16</SP> particles per cm.<SP>3</SP>; these tubes also house electrodes (not shown) connected to a radio-frequency source to allow the gas to be ionised before the main discharge. The main discharge is initiated by discharging a condenser through the coil 23 which comprises eight windings symmetrically spaced around the cooling jacket 12. Two wires 22 carried by a bracket 21 attached to the jacket 12 around its inner periphery are energized by direct current and hold the discharge at the centre of the toroidal chamber. The toroidal assembly is arranged around the core of an ion magnet (Fig. 3, not shown). In another arrangement, Fig. 4 (not shown), the vessel 11 is of tantalum and is cooled by lithium; a further cooling jacket surrounds the cooling jacket 12 and contains sodium-potassium. The coils 23 are replaced by a number of transformers, e.g. twenty, equally spaced round the toroid. The apparatus may be used as a thermonuclear reactor and energy abstracted electrically through the primary circuit in addition to the heat removed by the coolant; the neutrons produced may be used to induce fission in uranium to produce heat energy.
Patent GB-121970-A (GB)
Title: An Improved Carburettor.
Inventor: GINO REDINI
IPC: F02M9/127
Filed: 1918-12-30
Abstract: 121,970. Redini, G. Dec. 29, 1917, [Convention date]. Void [Published under Sect. 91 of the Act]. Spray carburettors.-In a spray carburettor, a mixing chamber a with one or more outlets 2 to the engine is surmounted by an air admission casing b which in turn supports a constant-level float chamber 14 supplied with fuel by a pipe 16. The float 20 is guided by a tube 21 having apertures 21<1> through which the fuel flows to a nozzle 19 which may be closed entirely by a valve 22 and controlled by a needle valve 22", both valves being carried by an inverted mushroom valve c which controls the inlet of fuel and air to the mixing-chamber a. The cage b is provided with air-inlet ports 8 controlled by a rotatable ported sleeve 9. The valve c is actuated through a lever 28 and arm 33, a slot in which embraces a pin 25<1> in a socket 25 screwed to the spindle 23. An adjusting nut 24 is provided to ensure that the valve 22 shall close the nozzle 19. The mixing chamber, which is water-jacketed at 3, is provided with a drain 6. A disk 20<1> on the float actuates the fuel-inlet valve 17'.
Patent GB-1494177-A (GB)
Title: Fusible resistor
IPC: H01H85/046
Filed: 1976-05-26
Abstract: 1494177 Fusible resistors RESISTA FABRIK ELEKTRISCHER WIDERSTANDE GmbH 26 May 1976 [6 June 1975] 21920/76 Heading HIS A resistor comprising a resistive coating on a body 2 has a glaze coating 7 over part of the resistive coating, the glaze coating melting at a predetermined temperature to form an electrically conductive liquid which causes electrolytic decomposition of the resistive coating. The glaze coating is preferably of a ceramic lead borosilicate, and the resistive coating may be of carbon or a metal oxide. The resistive coating may have a nick (10, Fig. 3, not shown) to cause localised heating in the region of the glaze coating. In another embodiment (Fig. 2, not shown,) the glaze coating is in the form of a spot (9) on a helical resistive path.
Patent GB-1005253-A (GB)
Title: Electro-hydraulic device
IPC: F15B7/00
Filed: 1963-05-31
Abstract: 1,005,253. Hydraulic apparatus. RECHERCHES ETUDES PRODUCTION R.E.P. May 31, 1963 [June 2, 1962], No. 21921/63. Heading F1P. [Also in Division F2] In an electrohydraulic device having a piston rod T for controlling e.g. a cut-off valve, the piston 4 thereof is provided with automatic locking means at the ends of its stroke and is actuated in one direction or the other by a reversible pump 8 driven by a two-way motor M which when started causes the piston to be unlocked by the action of hydraulic pressure before commencing its stroke, the automatic locking at the end of the stroke causing the motor to stop. The locking of the piston at the ends of its stroke operates contact makers 6a, 6b to stop the motor. The pump 8 draws liquid from one side of the piston 4 and supplies it to the other side of the piston through conduits 7a, 7b which include a pair of valves 9a, 9b which compensate for the effect of the difference in effective volume of the chambers 2a, 2b on opposite sides of the piston 4 and are operable in response to pressure variations to allow return or withdrawal of liquid to the device through a conduit 13 connected to a reservoir. Connected in the conduits 7a, 7b are two pressure relief valves 14a, 14b and two retaining valves 18a, 18b which are both normally kept open by a cam 17, but one or other of which may be closed when an emergency hand pump 15 connected through conduits 15a, 15b to the conduits 7a, 7b is in use. A high pressure relief valve 19 controls the pressure created by the hand pump 15. The piston rod T is connected to the piston 4 through a spring formed by a stack of resilient rings 5. In Fig. 1 (not shown) all the components apart from the piston and its cylinder are combined in a single unit which can be orientated with respect to the piston and cylinder in two plane at right angles.
Patent GB-804328-A (GB)
Title: Improvements in or relating to radius rod assemblies
IPC: B60G7/00
Filed: 1956-07-16
Abstract: 804,328. Ball and socket joints. THOMPSON PRODUCTS, Inc. July 16,1956 [July 21, 1955], No. 21952/56. Class 65(2) [Also in Group XXXII] In a tandem axle suspension for a vehicle (see Group XXXII) a radius rod 18a is pivotally connected to an axle by a ball joint comprising a stud 33 having a central ball portion 35 and semi-spherical bearing members 38, 39. The stud 33 is secured by bolts 45 to yoke arms 30, 30, which extend on either side of the radius rod, and are rigid with the axle. The stud 33 and bearing members 38, 39 are retained in a bore 43 by the bearing members 38, 39 being located in a further bore formed axially in the end of the radius rod 18a and at right angles to the bore 43, and retained by a screw plug 45 against the action of a coiled spring 40. The effective lengths of the radius rod 18a may be adjusted by the insertion of shims 41 between the bearing member 38 and the coiled spring 40. The plug 45 is retained by a cotter pin, Fig. 5 (not shown), and carries an eccentrically disposed grease nipple 45c, which connects with a grease reservoir 45a, and a lubricant groove 36 in the ball portion 35 of the stud 33.
Patent GB-1039869-A (GB)
Title: Valve for controlling fluid flow
IPC: F16K5/06
Filed: 1964-05-27
Abstract: 1,039,869. Valves. CAMERON IRON WORKS Inc. May 27, 1964 [March 26, 1964], No. 22007/64. Heading F2V. A valve comprises a body 11, Fig. 2, having a flow passage 12 therethrough, a valve member 13, such as a spherical plug, for opening and closing the passage, a valve seat comprising a body 25 slidable within the passage and having a groove 35 at its inner end, an outwardly facing pressure responsive area A 1  on the body which is smaller than the inwardly facing pressure responsive area A 2  between the inner and outer diameters of the groove, and means 37 for introducing lubricant to the pressure responsive areas so that the inner end of the seat is urged against the valve member until the lubricant pressure reaches a predetermined value. At the predetermined pressure, the provision of the differential areas causes the body 25 to be moved to the right against a spring 54. In Fig. 3, the body is in two relatively movable parts 55, 56 having differential pressure areas A 1 , A 2  to cause movement to the right when excess lubricant pressure is to be relieved, upstream and lubricant pressures normally hold the part 56 against a shoulder 57 on the part 55. The housing consists of hemispherical shells welded together along a horizontal seam and connected by welds 22 to flanged extensions, the plug being inserted before assembly.
Patent GB-855332-A (GB)
Title: Improvements relating to electrical waveform generating circuits
Inventor: SCOLES GRAHAM JOHN
IPC: H03K4/12
Filed: 1956-07-17
Abstract: 855,332. Valve sawtooth and bistable circuits. METROPOLITAN-VICKERS ELECTRICAL CO. Ltd. July 22, 1957 [July 17, 1956], No. 22118/56. Class 40(6). A free-running waveform generator comprises a capacitor C in series with a charge path and in parallel with a discharge path, one of the paths comprising a constant current impedance such as V1, the other comprising an electronic switch such as V2, the voltage level across the capacitor C being applied to a bistable circuit such as V4, V5 to change the circuit from one state to another, the bistable circuit controlling the electronic switch to open it in one stable state to provide a linear change of voltage in one direction through the constant current impedance and to close the electronic switch in the other stable state to provide substantially instantaneous flyback. As shown, the discharge is made linear by feedback across resistor Rl, The frequency is controlled by variable resistor R2 or by variation of capacitor C. The amplitude is controlled by variation of the bias applied to the clamping diodes V6, V7 which determine the changeover levels of the bistable circuit V4, V5. A very short pulse having adjustable frequency and amplitude may be obtained from a resistor in V5 anode circuit. Modifications. V1 may be cut off on the suppressor grid during charging. Linear charging may be provided by interchanging V1 and V2. Reference is made in the Provisional Specification to the replacement of V3 by a potential divider.
Patent GB-846490-A (GB)
Title: Production of metals
Inventor: DERHAM LESLIE JACK
IPC: C22B5/04
Filed: 1957-07-12
Abstract: Metallic titanium, zirconium, uranium or thorium are produced by compacting the corresponding halide with magnesium and charging into a medium of molten fluoride or chloride of an alkali or alkali earth metal.  The tetrahalides of the above metals may be used as starting material.  A mixed tetrachloride of hafnium and zirconium may be partially reduced to produce lower chlorides of zirconium, the hafnium tetrachloride being unchanged and thus removable by distillation.  The purified zirconium dichloride can then be further reduced by the process of the invention with more magnesium without the removal of the associated magnesium chloride.  Titanium tetrachloride can be also reduced in two stages as above described the second stage being carried out by the process of the invention.