baber/WOPTO huggingface dataset:
Patent GB-850527-A (GB)
Title: Improvements in and relating to magnetic means for deflecting electron beams
Inventor: ARCHARD GEOFFREY DENNIS
IPC: H01J37/147
Filed: 1957-02-19
Abstract: 850,527. Electron beam apparatus. ASSOCIATED ELECTRICAL INDUSTRIES Ltd. Feb. 12, 1958 [Feb. 19, 1957], No. 5611/57. Class 39(1). An arrangement for magnetically deflecting an electron beam in a cathode-ray tube or electron microscope without distorting the beam cross-section from a circular shape, comprises a pair of circular polepieces 4, 5, Fig. 3, having a semi-circular section 12 cut out of them so that all the electrons of the beam follow parts of substantially equal length through the field, the beam entering and emerging from the field radially. A second pair of polepieces 6, 7 is provided to deflect the beam in the opposite direction. Focusing due to these polepieces 6, 7 in the plane of deflection is equalled by the focusing perpendicular to the plane of deflection brought about by the electrons emerging obliquely to the fringing field at face 9. In another embodiment, Fig. 4a, the curvature of the exit face 9 is reversed and a gap 11 is provided in the polepieces 6, 7. The polepieces 6, 7 are also tapered so that the gap between them increases in a direction normal to the original bearing direction 10 so that the angle of deflection is proportional to the current in the electromagnets. An arrangement is also described in which the beam is deflected by an arrangement of polepieces similar to that of Fig. 4a, but without a section cut out of the polepieces.
Patent GB-564293-A (GB)
Title: Improvements in or relating to processes of and apparatus for making hollow articles, particularly valves
IPC: B21C23/04
Filed: 1943-04-08
Abstract: 564,293. Making poppet valves. THOMPSON PRODUCTS, Inc. April 8, 1943, No. 5635. Convention date, March 11, 1942. [Classes 83 (ii) and 83 (iv)] Pipe-end closing; extruding.-A poppet-valve or other hollow article is made by inserting a mandrel in a cup-shaped blank and extruding the blank around the mandrel, this being allowed ,to move with the extruded metal, if desired, for a part of the process. A headed cupshaped blank 21 can be made by forging or casting, or a thick disc of metal may be extruded by a hollow-faced plunger 19 through a die 16a and about a fixed mandrel 18 to produce such a blank 21. This is necked by rotating between reciprocating hammer dies 22, Fig. 6, and placed between dies 30, Fig. 7, which are then inserted in the bed 32 of a press. A follow-up ring 37 of cheap metal is placed on the stem of the blank and the stem 21b is then extruded by a plunger 39 and mandrel 41, this being free, if desired, to move with the extruded metal until checked by its head 41a engaging the bottom of the cavity 39c so as to move at the same rate as the plunger. As the mandrel has a conical tip, the hole through the stem is tapered at the throat. During the return stroke, the blank 21, Fig. 8, is lifted by the mandrel until the head 42b is arrested by the die throat 35 and the mandrel extracted. The dies 30 are then lifted out and the blank 21 removed. The waste portion of the stem is then cut off at 43. An enlarged end may then be formed on the stem by upsetting or by machining an oversize stem. After finishing internally and externally, the body is charged with sodium or the like and closed by forcing into a die 55, Fig. 11, by a plunger 65, which has a central projection 66a to locate a follow-up ring 66. The dies 55 and 30 may have handles 59. Vents 19b, 18a and 13a, Fig. 3, may be provided.
Patent GB-399389-A (GB)
Title: Method and apparatus for producing metal castings under pressure
IPC: B22D17/12
Filed: 1933-02-24
Abstract: 399,389. Casting-machines. WEISSENBERG, G. J., 11, Tegastrasse, Mariendorf, Berlin. Feb. 24, 1933, No. 5679. Convention date, Jan. 18. [Class 83 (i).] In casting metal under pressure a charge C in pasty condition is poured into a chamber K, close beside or above the mould cavity F and connected thereto bv channels E of such size that the metal cannot flow through them by gravity, and pressure is applied by means of air or a plunger P. Alloys of high melting- point may be so cast. Moulds, of which each half comprises a number of pieces of steel, may be used and the gate H, Fig. 2, and casting G may be ejected in one piece.
Patent GB-677768-A (GB)
Title: Improvements in metal cutting or rolling machines
Inventor: PICTON JOHN BURLEY
IPC: B23D35/00
Filed: 1951-03-09
Abstract: 677,768. Shearing; rolling. BIGWOOD & SON, Ltd., J. March 9, 1951, No. 5703/51. Class 83 (iv). In a rolling &c. machine in which one of the side columns is movable to allow of withdrawal , of the rolls, a bed 10 has an extension 11 on which the column 21 is moved by a screw 32. The extension 11 is then swung on a pivot 41 to allow access to the rolls 45. A shaft 27 for adjusting the roll pass is broken at a coupling 28 when the column 21 is moved. The frame extension 11 is locked in its operative position by a catch, not shown. The rolls 45 may carry disc cutters for shearing sheets or may be adapted for rolling.
Patent GB-487438-A (GB)
Title: Improvements in ventilators for railway coaches and other vehicles
IPC: B61D27/00
Filed: 1937-02-26
Abstract: 487,438. Ventilators vehicle windows. BAKER, W. S. GRAFF-, and LONDON PASSENGER TRANSPORT BOARD. Feb. 26, 1937, No. 5769. [Classes 20 (iii) and 137] A ventilator for railway coaches or other vehicles consists of a swinging glass light a arranged above a fixed light r and overhanging by its lower edge the top of the fixed light. The light a is mounted in a packing strip c in a metal frame b which has a projecting flange d cut away at e and is provided with pegs f, g, the lower part of the rear face of each frame member being cut away at j to accommodate a water channel q on each side plate k. A lower slot l, and an upper groove m are formed in the side plates to take the pegs g, f, the pegs f each falling into dropped portions n at the ends of the groove. A handle p is provided for operating the ventilator. The upper edge of the fixed light r is bevelled at s, so that when the swinging light a is closed, its lower end is flush with the light r, its top contacting by the flange d with a packing strip t, and its sides engaging with a channel groove v on the front edges of the plates k.
Patent GB-1146812-A (GB)
Title: Improvements relating to material comminution apparatus
IPC: E03C1/266
Filed: 1966-02-10
Abstract: 1,146,812. Comminuting apparatus. T. C. R. SHEPHERD. 7 Feb., 1967 [18 Feb., 1966], No. 5823/66. Addition to 889,097. Heading B2A. In comminuting apparatus e.g. waste disposal apparatus in which the waste passes through a receptacle 1 for passage downwardly to a comminutor 21 having an electric motor 23 and then to drain through a pipe 26, the receptacle has an inlet opening 2 and an outlet opening 3 and comprises a hinged platform 4 displaceable from a specified (horizontal or inclined) position in which position the waste is initially received thereon and then discharged over an edge 9 of the platform for comminution, and switch means 11, 12 connectable to the motor circuit 27 to 29 and automatically operable to open the motor circuit when the platform is displaced from the specified position. The switch means comprises a magnetic switch 11 which is magnetically operable by a magnet 12 attached to the platform. Alternatively, the magnet 12 may be replaced by a ferrous metal body and a magnet incorporated in the switch 11. The inlet opening 2 has a hinged cover 13, a nozzle 20 may be fixed in the receptacle wall for feed of water or other liquid through a pipe 31 to wash down the platform for a period determined by a time switch. A main control switch may be associated with the cover to start operation of the comminutor, when the cover is closed, for the period determined by the time switch. The platform may be an impervious plate or a relatively fine grid.
Patent GB-638008-A (GB)
Title: Improvements in and relating to navigational systems employing continuous radio waves
Inventor: JOHNSON HAROLD ROBERT
IPC: G01S1/30
Filed: 1947-02-28
Abstract: 638,008. Radio navigation. MINISTER OF SUPPLY. Feb. 28, 1947, No. 5849. [Class 40 (vii)] In a radio frequency phase hyperbolic navigation system a receiver comprises an input filter circuit arranged to pass only signals at the different frequencies radiated by the transmitters of a selected one of a plurality of chains of stations, followed by an amplifier accepting all the signals applied to it and means passing the amplified signals selectively to a plurality of frequency multiplication circuits. The wide band amplifier may include frequency changing means as in the embodiment described. Fig. 1 shows the craft receiver at a position P relative to the fixed stations ABCD, of which A is the master station whose signals are received by the 3 slave stations and used to maintain a phase lock between the radiated signals of the chain. The position of P is defined by the hyperbolae 1, 2 and 3 representing lines of equal phase relationship between received signals from A and B, A and C, and A and D respectively. 360 degree phase-shift ambiguity may be resolved by utilizing progressively reading phase shifters pre-set at a known location. Assuming the stations ABCD form Chain I and transmit on frequencies of 60, 80, 100, and 120 kc. respectively, and that there are alternate chains in different localities, Chain II using 63, 84, 105 and 126 kc/s. and Chain III 66, 88, 110, and 132 kc/s., aerial 1 receives all the signals and feeds them to 12 crystal filter circuits in pre-selector 2 each tuned to one of the station frequencies. By a chain selector switch the four frequencies belonging to a desired chain are selected and fed to mixer 3 fed by local oscillator 4 of frequency 10 mc/s. Amplifier 5 tuned to 10 mc/s. has a band-width of Œ250 kc/s., enough to pass signals from all the stations, and after amplification the signals are detected at 6 and applied to frequency multipliers 7-10, each of which incorporates a a band-pass filter passing frequencies of 63Œ4 84Œ5, 105Œ6, and 126Œ7 7 kc/s. respectively, and have multiplication factors of 20, 15, 12 and 10. The outputs of all four multipliers are thus, in the case of Chain I, 1200 kc/s. and the AB, AC, and AD, signal pair phase differences are displayed on phase indicators 14, 15 and 16. Each of the multipliers preferably includes an amplitude limiter or each filter in the preselector associated automatic gain control means to ensure substantially equal signals are applied to the phase comparison circuits. Specification 620,481 is referred to.
Patent GB-670175-A (GB)
Title: A duplicating machine of the line-duplicating type
IPC: B41L11/00
Filed: 1949-03-03
Abstract: 670,175. Copying documents. PANUSKA, P., and LIBRA, B. March 3, 1949 [March 3, 1948], No. 5849/49. Class 100 (ii). In a mirror-script line-duplicator having a roller pressure device and a copy sheet wetting device both synchronously adjustable along the drum carrying the master sheet, a wetting liquid container extends above the wetting device over the whole length of the duplicating drum and has discharge valves spaced along its bottom at intervals equal to or less than the effective width of the wetting device. As shown the liquid container 5 extending over the whole length of the wetting device guide plate 3 has spring-closed outlet valves 8 spaced correspondingly to the width of a collecting groove in a sliding carrier 9 to which at 16 is detachably hinged a casing 15 for two wetters having pads 19, 19' of different widths each manually retractable by a button 21; a spring 38 presses the wetters into operative position except when an abutment 29 at each end of the duplicating drum 2 withdraws them at the initial position through levers 25 pivoted at 28 to the machine sides and connected by a rod 24 which acts on a lever 26 pivoted at 27 to the carrier 9 and engaging a projection 15<SP>1</SP> on the casing 15. As the carrier 9 is moved along its guide plate 3 the lever 26 slides a short roller 23 along the rod 24 to engage the lever 22 of the appropriate valve 8; to vary the liquid feed the roller 23 may be of varying diameter along its length or may have a projection 23<SP>1</SP>. Corresponding in width to the wetters 19, 19<SP>1</SP> are two presser rollers 30 which are brought into operative position by means of levers 33, 33<SP>1</SP> engaging adjustable abutments 36 on their bell-crank holders 32. The carriers 9, 10 of the wetting and pressing devices are synchronously adjusted along their guides 3, 4 by cables wound on drums at both sides of the machine, one drum being spring- loaded and the other manually or mechanically controlled and locked frictionally, by ratchets &c. The paper feed table may be fixed, with adjustable side ledges, or may be connected with the carrier 10. Two or more pairs of wetting and pressing devices may be mounted on the same guides 3, 4. The parts 19, 19' and 30 may be replaced respectively by a single pad and roller equal to their combined widths.
Patent GB-1089839-A (GB)
Title: Gas seal for travelling web treatment apparatus
IPC: G11B11/03
Filed: 1965-02-10
Abstract: 1,089,839. Electron beam apparatus. MINNESOTA MINING & MANUFACTURING CO. Feb. 10, 1965 [Feb. 10, 1964], No. 5881/65. Heading H1D. A travelling web is subjected to electron beam bombardment by passing the web 10 over a smooth sealing lip 30 containing an aperture 29 for the electron beam, a vacuum seal being made between the web and the lip by providing further apertures 31 adjacent the electron beam aperture and applying a partial vacuum through the further apertures. The treatment aperture extends transverse to the web. The web is urged into contact with the outer surface 13 of member 14 by the pressure of a profiled surface of member 17, a recess 37 in member 17 being connected to a vacuum source, the partial vacua created in apertures 31 and recess 37 being used to control the vacuum seal between the web and the lip. The web is capstan driven and is tensioned.
Patent GB-214590-A (GB)
Title: Improvements in machines for manufacturing woofless fabrics and impregnating the same with latex
IPC: D06B3/10
Filed: 1924-03-07
Abstract: 214,590. Soc. Anon. des Etablissements A. Olier. April 19, 1923, [Convention date]. Void [Published under Sect. 91 of the Act]. Fabrics composed of threads or cords united by adhesives; impregnating materials in long lengths. -Two sheets of threads 1, 1<1> in parallel formation pass from a creel 2 through combs 4, 4' and round cylinders 5, 5<1>, 6, 6<1>, 7, 7<1>. They are then brought together to form a single sheet which is passed round heated cylinders 10, 12 and through a vat 13 of rubber latex. The sheet is squeezed between rolls 20, 20<1>, by which excess latex is removed. It is then dried in chambers heated by steam pipes 26 and is finally wound, together with a liner 36, upon a roll 34.
Patent GB-725580-A (GB)
Title: Improvements in or relating to high vacuum oil diffusion pumps
IPC: F04F9/00
Filed: 1953-03-04
Abstract: 725,580. High vacuum diffusion pumps. EASTMAN KODAK CO. March 4, 1953 [March 5, 1952], No. 5985/53. Class 71. In an oil diffusion pump having a central detachable chimney 35 fitted with a nozzle forming cap 42 and seated on the base 12 of a vertical cylindrical casing 17, the upper end of the chimney 35 is secured against excessive axial displacement by means of a spring clip 44 which loosely encircles an upstanding post 43 secured to the chimney so as to allow lateral movement thereof and bears against the inner wall of the casing 17. The chimney 35 is surrounded by a concentric capped chimney 34 which also seats on the base 12 to form an annular boiler compartment in communication with the central compartment through a notch 37. An outer capped chimney 33 is secured to the chimney 34 by spacers 38 and dips into a gutter 18 below a forepressure arm 22 having a drain cock 30. Tarry residues and decomposition products of the pump fluid collecting in the central portion of the boiler may be removed through a drain 48, and gases distilled therefrom traverse a tube 53 leading to the chimney 34.
Patent GB-126423-A (GB)
Title: A New or Improved Means for Producing Centrifugal Castings in Moulds.
Inventor: OUBRIDGE WILLIAM ARTHUR
IPC: B22D13/00
Filed: 1918-04-09
Abstract: 126,423. Oubridge, W. A., Williams, G., and Pott, L. C. April 9, 1918. Casting-machines; metal-pouring; castings, extracting; moulds.-In a centrifugal casting-machine, the moulds 3, 4 with cores 2 are placed radially round a runner 26 which supplies metal through gates 27. The mould-halves 3 are carried by a plate 12, which is separated by heatdissipating rods from a roller bearing 13, 13<a>. The mould-halves 4 are carried by a sleeve 11, which can be rotated by a belt and fixed pulley 25. The mould-half 4 carries a lug 5, provided with a pin 5<a> adapted to pass through an ear 2<a> on the mould-end and into a lug 5<c> on the mould-half 3 to ensure registration. The sleeve 11 is mounted on a carriage 10, which can be moved by a rack, and pinion 7, 8, and is held in closed position by the dog 14 pressing on the abutment 17, a spring 18 also being provided to take up any play caused by heat expansion. The handle 21 operates the belt-fork 24 to move the belt between the fast and loose pulleys 25, 25<a>, and controls the cam 36 which is arranged to actuate the lever 38 on which one end of a brake band is fixed. A pourer 9 is provided to feed the runner 26. When the castings are set, the handle 6 is operated to move the carriage 10 to the right by means of the rack and pinion 7, 8. The movement of the mould-half 4 releases the mould-end from the pins 5<a>, and the mouldend slides along the rods 32 on to the buffers 3<e>. On the further movement of the carriage 10, the spindle 30, which is rotatably mounted in the sleeve 11, is held by the stop 33 meeting the bearing 31<b>, and the head 29 of the spindle ejects the casting from the mould-half 4. The further movement of the sleeve 11 causes the casting to fall clear of the moulds, and the handle 21 is then operated to stop the rotation. A spring 31 is provided to cause the conical head 29 of the spindle 30 to keep the runner 26 closed on that side. The casting may otherwise be removed through the mould-ends, and the moulds may be held closed by means of hinges mounted on one mould-half and screwed on to the mould-end. Fig. 4 shows a mould used for casting aluminium shell fuses.
Patent GB-231451-A (GB)
Title: Apparatus for regulating the working of steam-power plants
IPC: F22B13/06
Filed: 1925-03-05
Abstract: 231,451. Schmidt'sche Heissdampf-Ges. March 28, 1924, [Convention date]. Controlling different functions by same handle; automatic power control; controlling apparatus, arrangements of transmission gear in conjunction with.-In locomotives comprising two or more steam generators working at different pressures and supplying steam to different stages of an engine, the regulators or stop valves of the separate generators are controlled by a single hand-operated means, which may also be controlled automatically. Each regulator comprises a pilot or auxiliary valve 6, Fig. 2, and a main valve 5. In the construction shown in Fig. 7, two pilot valves 6, 10 are shown, one for each of two generators, the main valves being omitted. The regulator handle 14 controls both pilot valves simultaneously by means of a sleeve 38 having cams 15, 16 acting on the valves through arms 17, 26 and linkages 21, 29. The shapes of the cams vary along the length of the sleeve 38 so that if this is moved axially along its shaft 13 the relative openings of the valves 6, 10, and with them the main valves, are varied. The sleeve is moved along its shaft either by hand or, as shown, automatically by a piston 41 acted upon in one direction by a spring 43 and in the other direction by the pressure in one of the generators. Thus, as the pressure in, say, the low-pressure generator rises the low-pressure regulator 6 is opened more fully and the highpressure regulator 10 is partly closed. A differential piston acted upon by the pressure in both generators may be employed, so that the cam sleeve would be moved in accordance with the difference in pressure between the two. Modifications are described in which (1) the cams 15, 16 are not variable, but the piston 41 acts on each pilot valve through a separate set of toggle linkages, and (2) the pilot valves are controlled simply by two separate cams 15, 16, no automatic means being provided.
Patent GB-981606-A (GB)
Title: Electrical initiators
IPC: F42B3/12
Filed: 1961-02-20
Abstract: 981,606. Electrical initiators. POUDRERIES REUNIES DE BELGIQUE S.A. Feb. 20, 1961 [Nov. 10, 1960], No. 6175/61. Heading F3A. An electrical initiator comprises a pair of electrodes 1 rigidly mounted on an insulating element 2, the ends 4 of the electrodes being turned over to clamp in position a filament, preferably a pyrotechnic composition - covered chromenickel wire, wherein the electrodes are made of an alloy which consists of 80 to 20% by weight of nickel, 20 to 80% by weight of copper and less than 2% by weight of zinc. The ends 6, 6<SP>1</SP> of the electrodes receive electrical supply leads and these and the filament are welded into position. The method of making the initiator is as described in Belgian Specification 569,620.
Patent GB-876400-A (GB)
Title: Improvements in or relating to p-n-p-n-type semi-conductor devices
IPC: H01L29/00
Filed: 1958-02-26
Abstract: 876,400. Semi-conductor devices. SIEMENS & HALSKE A.G. Feb. 26, 1958 [Feb. 26, 1957], No. 6279/58. Class 37. A method of making a PNPN device comprises simultaneously diffusing into one surface of an N(P) type semi-conductor crystal a donor (acceptor) with a low diffusion coefficient and an acceptor (donor) with a high diffusion coefficient to form an NPN(PNP) zone arrangement, applying a first electrode in ohmic contact with the N(P) zone at said one surface, and alloying the end of a longitudinally extending member comprising an acceptor (donor) to the other N(P) zone to form a PN junction therewith. In an example antimony and aluminium are simultaneously diffused into one face of an N-type silicon body and an aluminium wire or pin alloyed to the opposite face of the resulting body. An electrode connection is provided on the surface N-type layer on the first face by vapour depositing gold or a gold-antimony alloy therein or by alloying a lead pellet thereto. The device which has a voltage current characteristic as shown in Fig. 2 may be used as a switch or relaxation oscillator.
Patent GB-691823-A (GB)
Title: Apparatus for combining with television sound from a local sound reproducer
IPC: H04N5/44
Filed: 1951-03-15
Abstract: 691,823. Television. KEATING, J. F. March 15, 1951 [Dec. 9, 1950], No. 6280/51. Class 40 (iii). Sound relating to the visible subject-matter of a television programme is recorded prior to the broadcast and reproduced at the point of reception of such visible subject-matter by a motor-driven apparatus arranged to run at the same speed as the television transmission, the apparatus being set in motion at the commencement of the programme by a switch mechanism released by an impulse transmitted over the vision channel.
Patent GB-1443686-A (GB)
Title: Polymerisable alpha, beta-monoolefinically unsaturated monomers  carrying 8-hydroxyquinolyl groups
IPC: C08F20/42
Filed: 1975-02-14
Abstract: The monomers conform to the formula <IMAGE> in which X = -NH-, R = H-, -COOH, -COOR3, where R3 is linear or branched C1-C18-alkyl, or cycloalkyl, and R1 is -H or -CH3, and R2 is H- or -CH3. The preparation is carried out by acylation of 2-[4-aminophenyl]-2-[5-(8-hydroxyquinolyl)]propane by means of an acid halide of the formula <IMAGE> in which Y is chlorine or bromine, or by means of acrylic, methacrylic, crotonic or maleic anhydride. The monomers are valuable starting materials for homopolymers and copolymers having a complexing action.