GB1256495A - - Google Patents

Info

Publication number
GB1256495A
GB1256495A GB2003468A GB1256495DA GB1256495A GB 1256495 A GB1256495 A GB 1256495A GB 2003468 A GB2003468 A GB 2003468A GB 1256495D A GB1256495D A GB 1256495DA GB 1256495 A GB1256495 A GB 1256495A
Authority
GB
United Kingdom
Prior art keywords
cover plate
gun
access
sealed
aperture
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired
Application number
GB2003468A
Priority date (The priority date is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the date listed.)
Filing date
Publication date
Application filed filed Critical
Publication of GB1256495A publication Critical patent/GB1256495A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01J—ELECTRIC DISCHARGE TUBES OR DISCHARGE LAMPS
    • H01J37/00—Discharge tubes with provision for introducing objects or material to be exposed to the discharge, e.g. for the purpose of examination or processing thereof
    • H01J37/02—Details
    • H01J37/16—Vessels; Containers
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23K—SOLDERING OR UNSOLDERING; WELDING; CLADDING OR PLATING BY SOLDERING OR WELDING; CUTTING BY APPLYING HEAT LOCALLY, e.g. FLAME CUTTING; WORKING BY LASER BEAM
    • B23K15/00—Electron-beam welding or cutting
    • B23K15/06—Electron-beam welding or cutting within a vacuum chamber

Abstract

1,256,495. Welding by fusion. VICKERS Ltd. 24 March, 1969 [26 April, 1968], No. 20034/68. Heading B3R. [Also in Division H1] -In electron beam welding, the workpiece in a vacuumis separated from the ambient atmosphere by being enclosed in a metal box 1 the top wall 3 of which comprises a sealed access accommodating operation upon 'the workpiece by an external electron gun 21, said access being movable in any direction across the wall. Said sealed and movable access is provided by a first circular cover plate 6 rotatable about the axis of, and sealed to, an-aperture 4 in the wall 3, a second circular cover plate 12 rotatable about the axis of, and sealed to, an aperture 10 in, and eccentrically of, the first cover plate, and a sealing device 18 between the gun and-an access aperture 16 which is aligned with the gun and is provided in, and eccentrically of, the second cover plate. Preferably, the axes 17, 5 of the access aperture and the first cover plate are equidistant from the axis 11 of the second cover plate so that the gun may take up any position within the circle generated by the axis 17 in its outermost position. Thrust -bearings 13, 7 and flexible sealing-rings 15, 9 are provided between the second and the first cover plates and between the first cover plate and the wall. The sealing device 18 comprising flexible sealing rings 19, 20 is provided around the access aperture 16 to receive, with relative rotational freedom, the outlet end of the -gun which latter -may be supported and moved by gantry means (not shown). The gun may, alternatively, be moved by driving thecover plates. Front and side walls of the box are provided respectively with a loading door and an evacuating duct 22.
GB2003468A 1968-04-26 1968-04-26 Expired GB1256495A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2003468 1968-04-26

Publications (1)

Publication Number Publication Date
GB1256495A true GB1256495A (en) 1971-12-08

Family

ID=10139274

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2003468A Expired GB1256495A (en) 1968-04-26 1968-04-26

Country Status (5)

Country Link
US (1) US3588442A (en)
DE (1) DE1921226B2 (en)
FR (1) FR2007528A1 (en)
GB (1) GB1256495A (en)
NL (1) NL6906238A (en)

Families Citing this family (6)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
DE3618283A1 (en) * 1986-05-30 1987-12-03 Messer Griesheim Gmbh Device for processing workpieces with an electron beam
FR2705047B1 (en) * 1993-05-12 1995-08-04 Framatome Sa METHOD AND DEVICE FOR ELECTRON BEAM WELDING OF TWO PARTS OF A LARGE COMPONENT AND IN PARTICULAR OF A STEAM GENERATOR OF A PRESSURE WATER NUCLEAR REACTOR.
FR2705160B1 (en) * 1993-05-12 1995-08-18 Framatome Sa Method and device for sealingly fixing a bushing tube in a curved wall of a nuclear reactor component.
DE102008033615B3 (en) * 2008-07-17 2009-12-24 All Welding Technologies Ag Chamber arrangement for an electron beam processing device
DE102009039621B4 (en) 2009-09-01 2012-06-28 Global Beam Technologies Ag Particle beam processing apparatus such as an electron beam processing apparatus
EP2474019B1 (en) 2009-09-01 2015-08-19 Global Beam Technologies AG. Particle beam processing device such as an electron beam processing device

Also Published As

Publication number Publication date
DE1921226B2 (en) 1978-03-23
NL6906238A (en) 1969-10-28
FR2007528A1 (en) 1970-01-09
DE1921226A1 (en) 1969-11-06
US3588442A (en) 1971-06-28

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Legal Events

Date Code Title Description
PS Patent sealed [section 19, patents act 1949]
PCNP Patent ceased through non-payment of renewal fee