baber/WOPTO huggingface dataset:
Patent GB-888108-A (GB)
Title: A plasma accelerator and modified picket-fence magnetic field plasma containment device
IPC: H05H1/11
Filed: 1960-06-01
Abstract: 888,108. Thermonuclear apparatus. UNITED STATES ATOMIC ENERGY COMMISSION June 1, 1960 [Sept. 2, 1959], No. 19446/60.Class 39(4) A neutron source comprises means for accelerating a plasma of deuterium or a mixture of deuterium and tritium to a high velocity, means for producing a magnetic field region having a zero intensity in its interior and an intensity greater than a critical value Be at all points along its border except a small jet entrance cusp where the intensity is less than Be, and a gas container surrounding the magnetic field region and having a plurality of ducts of which one surrounds the jet entrance cusp and is connected to the plasma accelerating means whilst the others surround other magnetic cusps and are connected to a vacuum system, the field Be being defined by the equation B c <SP>2</SP>=12##o#o<SP>2</SP> when po and #o are the density and velocity of the plasma as it leaves the accelerator. The magnetic field may be pin-cushion shaped in plan and may be produced by two parallel coils spaced apart with an electric current flowing round them in opposite directions. A cusp is produced along each end of a line joining the centres of the two coils, and ducts arranged round these cusps are connected to the plasma accelerator and the vacuum system; an annular cusp between and parallel to the coils is surrounded by a duct leading to the vacuum system. The plasma gun, Fig. 1, comprises a valve stem 7 carrying at one end a lead 8 which is movable to the right to expose apertures in its cylindrical wall and allow gas stored in the plenum chamber 24 to escape through the gap between electrodes 53 and 54. Gas is fed to chamber 24 from gas entry port 25 via annular spaces surrounding the valve stem 7. At the other end of valve stem 7 is an aluminium anvil 5 positioned adjacent a coil 4. In operation a condenser is discharged through coil 4 and the rapidly rising field of the coil exerts magnetic pressure on the anvil 5 which pushes the valve stem 7 to the right and releases gas into the gun. Shortly afterwards a condenser is discharged between outer electrode 50 and inner electrodes 53, 54 to ionise the gas into a plasma which is shot out to the right by a magnetic field surrounding the inner electrode caused by the current flowing in electrode 54.
Patent GB-748327-A (GB)
Title: Winding apparatus
IPC: D01H1/40
Filed: 1954-07-02
Abstract: 748,327. Attaching continuously delivered yarn to winding means. CELANESE CORPORATION OF AMERICA. July 2, 1954 [July 3, 1953], No. 19448/54. Class 120 (2). In order to throw continuously delivered yarn on to a bobbin without the yarn package having a long loose tail, guides are arranged on a ring twisting machine to cause means rotating with the package to engage the yarn over a predetermined portion of the traverse of the ring rail. On removal of a full bobbin, the yarn is passed from the feed roll 34 to a balloon guide 38, thence to an upper guide 44 and back to the feed roll 34. After an empty bobbin 27 has been placed on the spindle, the yarn extending between guides 38, 44 is manually drawn through the ring 13, engaged in the traveller 12 and slipped under the hooks 41, 43 of a lower guide 42, the bobbin 27 and its driving base 23 being kept stationary during this operation by a spindle brake. When the brake is released and the bobbin 27 and base 23 rotate, the yarn is drawn into a slot 28 in the edge of the base 23 and is held firmly against a resilient insert, so that winding begins and the yarn breaks at the lower face of the base 23. Contact of the yarn with the base 23 only takes place when the ring rail 16 has been lowered to a predetermined point.
Patent GB-634591-A (GB)
Title: Improvements in the production of synthetic resins
IPC: C08G12/04
Filed: 1947-07-22
Abstract: Synthetic resins are produced by reacting formaldehyde with a hydrazide of a dicarboxylic or polycarboxylic acid in which both or all the carboxyl groups are combined with hydrazine. Preferably the carboxyl groups are separated by a chain of 3 or more atoms. dihydrazides are those of adipic, pimelic, suberic, azelaic, sebacic, aniline-N : N-bis-propionic, sulpha-bis-propionic, and piperazine-N : N1-bis-propionic acids, which yield thermoplastic products, and di-hydrazides of oxalic or phthalic acid, which yield resins of very high melting point.  The hydrazides may contain hydroxyl, free or esterified carboxyl, or nitrogen-containing groups.  Up to about a ratio of aldehyde to hydrazide of 1.5 to 1 the products melt below 150 DEG  C. and are soluble in methanol.  Another compound capable of reacting with formaldehyde, such as urea, thiourea, phenol, m-cresol, resorcinol, and/or a drying oil, e.g. linseed oil, may be included in the reaction mixture, as may also dyes, e.g. Fast Red A, 1 : 4-di-(methylamino)-anthraquinone, or Sky Blue FF. Suitable plasticizers are tri-cresyl phosphate, dimethyl, diethyl, or dibutyl phthalate, dimethyl- or dibutyl-glycolphthalate, dibutyl sebacate, or triacetin.  Suitable condensation catalysts are hydrogen chloride or benzene or toluene sulphonic acids.  In an example, adipic acid dihydrazide and formaldehyde are reacted together and the product moulded.  In a modification, part of the adipic dihydrazide is replaced by urea.
Patent GB-1537564-A (GB)
Title: Pulleys
IPC: F16H55/44
Filed: 1976-05-13
Abstract: 1537564 Making pulleys; rolling; corrugating ASPRO Inc 13 May 1976 [23 July 1975] 19646/76 Headings B3A B3E and B3M [Also in Division F2] A method of making a one-piece multigroove sheet metal, V-pulley, Fig. 5, comprises the following steps: (a) forming a cup-shaped, sheet metal blank having a hub portion 2 with a generally cylindrical flange 4 terminating at its open end in an out-turned radial stiffening flange 5; (b) forming a series of V-shaped grooves having rounded valley- and crestportions 32, 33, Fig. 7, in the cylindrical flange 4 by outwardly and inwardly displacing portions of the flange wall; (c) axially compressing the V-groove formed flange wall to sinuous shape, Fig. 8; and (d) rolling the sinuously shaped flange wall to form V-shaped grooves 10, 13, 16, Fig. 9, therein with relatively sharp V-shaped crests 12, 15 and thickened valley walls 20. The cup-shaped blank is obtained in step (a) by drawing a sheet metal blank in a series of cup drawing dies in a press. Step (b) is performed in a lathe-type spinner in which the cup-shaped blank 30, Fig. 11, is clamped between headstock and tailstock dies 45 and 53 and rotated and a spinning roll 54 is moved radially inwardly into contact with the blank flange while die segments 50 are moved radially outwardly by a mandrel 48 moving in the direction of the arrow 52. Step (c) is carried out between upper and lower dies in an hydraulic press, Fig. 12 (not shown). The final step (d) is also performed in a lathe-type spinner, Fig. 13, in which the blank with its sinuously shaped flange is mounted on a headstock die 70, being centred and guided by a mandrel 73 and a tailstock die 74 is moved axially to clamp the blank. The dies and blanks are then rotated and a spinning roll 76 is moved radially inwardly into contact with the blank to produce the contour, form and metal displacement shown in Fig. 9.
Patent GB-873459-A (GB)
Title: Dispensing cover for a box
IPC: B67B7/86
Filed: 1959-06-09
Abstract: 873,459. Dispensing powders : stoppers. GRUSSEN, J. June 9, 1959 [Oct. 10, 1958], No. 19720/59. Classes 21 and 125(3). A dispensing cover 1 for a box for powder comprises a hollow body 2 which is slidable over a box B of corresponding size and shape and has one end closed by a transverse wall provided with a hollow punch 4 and a collar 5 defining a dispensing orifice obstructed by a perforated member 7, the walls of the punch 4 having perforations 6 to allow the powder to pass. A rotatable cap 9 is retained by a bead 11. Rotation of the cap 9 is limited by the ends of a slot 12 formed in its abutting a projection 13 on the collar 5. In one of these abutting positions perforations 14 formed in the cap register with perforations 8 formed in the member 7. In a modification, Fig. 3, the tip portion of a central core 17 of the punch 15 has a cross-section in the form of a cross to provide exterior grooves to direct the powder flow. A removable outer cap 20 is mounted on an inner cap 18 which is provided with perforations 19.
Patent GB-805920-A (GB)
Title: Improvements in or relating to waveguide arrangements including windows for passing electromagnetic waves
IPC: H01P1/08
Filed: 1955-07-07
Abstract: 805,920. Waveguides. GENERAL ELECTRIC CO. Ltd., and WALSH, A. S. July 5, 1956 [July 7, 1955], No. 19735/55. Class 40 (8). A polythene or polytetrafluoroethylene dielectric window 11 forming a gas-tight seal between waveguides 1, 2 is extended into a choke cavity 5 between flanges 3, 4 to provide the dielectric in the cavity. Each side of the window has an inductive iris 12 to match out the capacitive impedance of the window. The flanges of the guides are bolted together and located by dowels. In a modification. Fig. 3, two windows 35, 36 are spaced apart an odd integral multiple of #/4 to match out the capacitive impedance of the windows. A rubber sealing ring 38 is provided between the flanges 28, 29. To enable the space between the windows to be at the same pressure as the guide 20g, passages 41, 42 are connected by a ball valve 43 which is opened when the guides are bolted together. Alternatively, if it is not necessary to maintain the pressure in the guides when they are uncoupled, the windows may have holes.
Patent GB-1150674-A (GB)
Title: Article Arranging Machine
Inventor: LEE GEORGE ARTHUR
IPC: B65B35/56
Filed: 1967-04-28
Abstract: 1,150,674. Endless conveyers. AUTOPACK Ltd. 11 April, 1968 [28 April, 1967], No. 19737/67. Heading B8A. Articles 23 are delivered at random from a feed device 20 down a gap 21 of at least the maximum width of the articles and formed between a vertical plane tangential to a roller 13 driven in such a direction that the surface forming one side of the gap is moving upwardly to prevent the jamming of articles in said gap and a parallel vertical plane aligned with one edge 22 of an endless conveyer belt 10 to which the articles are fed. Disposed over said belt conveyer 10 on its path to a packing machine 12 to which the articles are delivered in a linear orderly fashion is a roller 14 acting as a barrier across said belt to remove any overlapping articles on to a further endless conveyer belt 11 disposed parallel to and slightly above the conveyer belt 10 and moving in the opposite direction. The belt 11 extends back beyond the feed device 20 where a guide 24 transfers articles thereon back to the conveyer 10. A roller 25 adjacent the transfer position assists in said transfer. The rollers 13, 14 and 25 and the conveyer belts 10, 11 are driven from a common motor 16.
Patent GB-1087303-A (GB)
Title: Improvements in and relating to machines for finishing gears, particularly gear shaving, honing or lapping machines
IPC: B23F19/06
Filed: 1965-05-11
Abstract: 1,087,303. Gear-finishing. CARL HURTH MASCHINEN-UND ZAHRADFABRIK. May 11, 1965 [July 7, 1964], No.19782/65. Heading B3K. In a machine for finishing gears, at least two passes are made, one being at a different speed from the other. One or two roughing passes may be followed by one or two finishing passes at higher speeds. To obtain the variation in speed, a multiplicity of electric motors, a variable-speed electric motor, an infinitely variable gear, and/or change-speed gearing may be controlled in synchronism with the lontitudinal or depth feed. A change of speed may be effected through an over-running or other clutch. The final pass may follow a roughing pass without intermediate depth feed. In one form of speed control, cones 113, 114, Fig. 4, are moved by electric or fluid-pressure means 116 and levers 119. In another form, different resistances are brought into the circuit containing the motor driving the tool The gear or tool may be driven.
Patent GB-823598-A (GB)
Title: Improvements in or relating to electrolytic cells
Inventor: CARTER CHARLES
IPC: C25B11/10
Filed: 1956-06-27
Abstract: 823,598. Electrolytic cells. IMPERIAL CHEMICAL INDUSTRIES Ltd. June 14, 1957 [June 27, 1956], No. 19874/56. Class 41. An electrolytic cell for producing caustic soda and chlorine has anodes comprising graphite plates or blocks or conducting compositions containing a plastic material and graphite, the anodes being suspended or supported by electrical connections composed of titanium or a conducting metal, e.g. copper or steel, coated with titanium. In an example, the cell has a cover which is of titanium or of a conducting metal coated therewith and which forms the connection to an anode comprising a graphite lining secured to the cover, e.g. by titanium nuts and bolts, or a lining of a plastic material and graphite, e.g. as described in Specification 823,599.
Patent GB-684679-A (GB)
Title: Improvements in systems and apparatus for producing television pictures for viewing in relief
IPC: G03B21/60
Filed: 1949-07-28
Abstract: 684,679. Stereoscopic kinematography; polarizing apparatus. RADIO-INDUSTRIE SOCANON. July 28, 1949 [Aug. 3, 1948], No. 19882/49. Drawings to Specification. Class 97 (i). [Also in Group XL (b)] In a stereoscopic television system (see Group XL (b)), the received images may be recorded on film and projected with the aid of devices similar to those described for the television system. The left and right images of the stereoscopic pair are distinguished by polarizing the light of the images in planes at right angles and by viewing the images thus produced through spectacles comprising polarizing elements. The system employs line-sequential transmission, the received images being reproduced on the screen of a cathode-ray tube in an interleaved manner with the left and right image details appearing on alternate lines. In one arrangement, Fig. 5 (not shown), the images produced are then projected through a polarizing filter and a Kerr cell to which is applied rectangular pulse voltages at line frequency. By this means the plane of polarization of the projected light is changed abruptly through 90 degrees for alternate lines and the left and right projected images thereby distinguished. In another arrangement, Fig. 9 (not shown), the polarizing element takes the form of a disc rotating at line speed, the disc being formed of a mosaic of elements having their polarization planes at right angles over the two halves of the disc. A modified disc Fig. 11 (not shown), employs two semi-circular elements to which the appropriate polarization planes are imparted by suitably directed rubbing operations. Another construction of disc, Fig. 12 (not shown), is employed with a fixed polarizing filter and includes no elements over 180 degrees, the remaining 180 degrees being formed of a mosaic of double refractive elements of thickness sufficient to rotate through 90 degrees the initial polarization plane imposed by the fixed filter. Reference is also made to magnetically variable substances such as flint and carbon sulphide. The polarizing elements of the spectacles Fig. 13 (not shown), are rotatable so that the polarization planes may be set parallel to the polarization planes of the projected light. Minimum fatique occurs when the polarizations planes are symmetrically placed with respect to the vertical axis of the human body. The frames of the spectacles carry marks to indicate this position and also the vertical and horizontal positions. The Specification as open to inspection under Sect. 91, describes also a frame-sequential system in which the left and right images of stereoscopic pairs are received in succession and when recorded on film appear on two successive frames. This subject-matter does not appear in the Specification as accepted.
Patent GB-579427-A (GB)
Title: Improvements in or relating to catalysts for gas reactions
IPC: B01J27/185
Filed: 1943-11-30
Abstract: 579,427. Catalysts. BOOTH, N., JOLLEY, L. J., and TEBBOTH, J. A. Nov. 30, 1943, No. 19970. [Class 1 (i)] A supported nickel catalyst promoted by minor additions of difficultly reducible metallic oxides, suitable for conversion of carbon monoxide into other products, has a small proportion of phosphorus, e.g., as a phosphate incorporated in it. When the nickel and promoter are precipitated from their soluble salts by a solution of alkali carbonate, a small proportion of phosphate may be added to this to supply the phosphorous. Reactions for which the catalyst is suitable are the production of hydrogen from carbon monoxide and steam, and the production of methane from carbon monoxide and hydrogen.
Patent GB-144916-A (GB)
Title: Improvements in or relating to carburettors for internal combustion engines
IPC: F02M23/02
Filed: 1919-08-15
Abstract: 144,916. Bennett, J. F., and Marple, G. S. Aug. 15, 1919. Spray carburettors.-Fuel is sprayed through a nozzle 1 into a branch air passage 2 which communicates with the induction pipe 3 through the spaces between the coils of a helical spring 4 one end of which is secured to the branch 2, the other end sliding in a boss 6 and being adjustable by screw or lever actuation of a cap 5. The cap is ported at 10 to admit additional air to the interior of the spring when the latter has been extended by a predetermined amount. The spring 4 may be surrounded by a second adjustable spring which may serve as a throttle valve. To ensure suction within the spring 4, the air inlet may be baffled by a valve or by sieves 9, the spaces between which may be packed with cotton wool ur the like. When heavy fuels are employed, a second nozzle 12 may be provided to supply a light fuel at starting or for occasional use, the light fuel being under the control of a spring- pressed valve. The air supplies may be heated. The coils of the spring may be round, square, elliptical or other shape in cross-section, and the spring itself, instead of being tubular in form, may be in the form of a truncated cone.
Patent GB-369838-A (GB)
Title: Musical instruments, in which music is produced by frequency alterations of electricoscillations
IPC: B22D3/02
Filed: 1931-07-13
Abstract: 369,838. Electrical musical instruments ; electric resistances. LERTES, P., 55, Kuhwaldstrasse, and HELBERGER, B., 37, Zeppelin-Allee, both in Frankfort-on- Main, Germany. July 13, 1931, No. 20079. Convention date, July 16, 1930. [Class 88 (ii).] In a musical instrument operated by electric oscillations generated by a valve 13, the frequency is varied by means of a potentiometer controlling the grid potential of the oscillating valve. The contact element of the potentiometer comprises a metal band fixed to a block 3a and supported at the other end on a trestle 3b, this end being maintained in tension by a spring 5 acting through a block 4 pivoted at 6. The contact band is covered by a slightly wider band 1b of leather or other supple insulating material and is adapted to be depressed by the operator's finger-tip at any desired point on to a resistance element 2a of convex section on its upper face. The block 4 carries an arm 7 engaging a mercury cup 8 whereby depression of the band 1b makes the circuit of the grid battery 16 through the resistance 2a before contact of the band with the resistance is established. The resistance element 2a is supported by a cloth band 2b secured at its free end to a spring-controlled lever 9 on which is mounted the movable primary coil 12 of a transformer coupling the oscillating circuit to an amplifying valve. The resistance 2a is preferably wound as a spiral of varying pitch so that a given shift in the contact point corresponds to the same musical interval throughout the length. In an instrument comprising several voices, the potentiometers are arranged at different levels on sloping supports to facilitate playing.
Patent GB-853693-A (GB)
Title: Improvements in or relating to ship's lifeboats
IPC: B63C9/02
Filed: 1957-06-26
Abstract: 853,693. Ships lifeboat. M. E. P. CO. Ltd., and LOWE, F. H. June 24, 1958 [June 26, 1957], No. 20098/57. Class 113. A ships lifeboat 12 has inflatable structures 10 and 11 erected at the bow and stern ends to provide increased buoyancy and weather protection for the passengers. The structures 10 and 11, when in their collapsed condition, do not rise materially above the level of the gunwales.
Patent GB-940388-A (GB)
Title: Improvements in or relating to a rotary spraying device
IPC: B05B3/04
Filed: 1960-06-09
Abstract: 940,388. Rotary sprayers. J. LOWE. May 24, 1961 [June 9, 1960], No. 20362/60. Heading B2F. A jet of water emitted from the nozzle 2 of a stationary tube 1 strikes vanes, 8, 9 mounted on a sleeve 3 rotatably mounted on the tube whereby the sleeve and vanes are rotated and the jet is divided into two streams which flow through opposed discharge ports 6, 7 in the sleeve. An annular cavity 5 is provided between the tube and sleeve, and the wall of the latter is cut away obliquely at diametrically opposed points to provide parabola-shaped discharge ports. The vanes may comprise a single metallic sheet doubled on itself and engaging in opposed slots 10, 11 in the sleeve, and the lower edges of the vanes extend across and in front of the nozzle. The sleeve may slide axially on the tube a distance governed by a resilient clip 12 on the tube.
Patent GB-181631-A (GB)
Title: Right and left hand key for keying flat-footed rails to metal sleepers or chairs
IPC: E01B9/50
Filed: 1921-07-30
Abstract: 181,631. Cowen, G. H., (Morgan, F. R.). July 30, 1921. Chair keys.-Tapered keys driven between the flange of a flat-bottomed rail and a lug or jaw on the chair or sleeper are adapted for right and left hand use. The curved back A of the key contacts with the chair jaw and the faces BR, CR contact with the rail flange and chair seat or vice versa according as the key is used as a right-hand or left-hand key. The keys on one rail may be all the same, and the same as or opposite to those on the other rail, or they may vary from sleeper to sleeper.