US3828156A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Welding machine
Assignee: Rolls Royce PLC
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Filing: 1973-07-13
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Granted: 1974-08-06
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Expires: 1993-07-13
Abstract
Abstract A machine for use in the welding of a pipe to a pipe-end fitting comprising several carriages, mounted on a main frame, and capable of receiving a pipe and a pipe-end fitting and aligning them in an abutting relationship one to the other and relative to an orbital welding head which is mounted from one of the carriage means. The machine is particularly adapted for batch work in that after setting up for the welding of the first assembly repetitive work can then be carried out with a reduced number of setting up adjustments for subsequent welding of assemblies.
Inventors
- 👤 J Fulks
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 09:30
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/02; B23K9/028; B23K9/0282
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
195 words
A machine for use in the welding of a pipe to a pipe-end fitting and comprising a main frame having a base and supporting a plurality of carriage means which are each one capable of movement relative one to the other and relative to the main frame to a desired position, a first one of said carriage means being a main transverse carriage and mounted from said base, and a second one of said carriage means being mounted from said transverse carriage; a welding head, which includes an orbital welding electrode, supported by said second one of said carriage means; and means to adjust the position of said welding head relative to said second carriage means in a plane which is parallel to said base, a third one of said carriage means being mounted from said second carriage means for movement in a plane normal to said base, towards or away from said welding head, said third carriage means having mounted thereon a clamping means for rigidly supporting a pipe-end fitting and having an adjustable stop device for maintaining the end face of the pipe-end fitting in a co-planar relationship with said orbital welding electrode.
Claim 2
Dependent Claim
195 words
A machine for use in the welding of a pipe to a pipe-end fitting and comprising a main frame having a base and supporting a plurality of carriage means which are each one capable of movement relative one to the other and relative to the main frame to a desired position, a first one of said carriage means being a main transverse carriage and mounted from said base, and a second one of said carriage means being mounted from said transverse carriage; a welding head, which includes an orbital welding electrode, supported by said second one of said carriage means; and means to adjust the position of said welding head relative to said second carriage means in a plane which is parallel to said base, a third one of said carriage means being mounted from said second carriage means for movement in a plane normal to said base, towards or away from said welding head, said third carriage means having mounted thereon a clamping means for rigidly supporting a pipe-end fitting and having an adjustable stop device for maintaining the end face of the pipe-end fitting in a co-planar relationship with said orbital welding electrode.
Claim 3
Dependent Claim
46 words
A machine as claimed in claim 1 in which a fourth one of said carriage means is mounted from the main frame for movement in a plane normal to said base, said fourth carriage means having mounted thereon a clamping means for rigidly supporting a pipe.
Claim 4
Dependent Claim
73 words
A machine as claimed in claim 2 in which said first, second third and fourth carriage means is eacH one capable of movement to a respective position, relative to the other ones, so that the pipe and the pipe-end fitting are aligned and abutting one to the other at a respective end face and the plane of the abutting end faces is co-planar with the plane of orbit of the orbital welding electrode.
Claim 5
Dependent Claim
97 words
A machine as claimed in claim 3 in which a fifth one of said carriage means in mounted from the main transverse carriage for reciprocal movement thereon; said fifth carriage means supporting a powered grinding wheel, which may be raised or lowered relative to the base of the main frame in order to generate an end face of the pipe which is parallel to the end face of the pipe-end fitting when the grinding wheel is moved to the appropriate position below the pipe by means of movement of the main transverse carriage and said fifth carriage.
References Cited (Backward Citations)
USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1977-08-05 | 1978-02-04 | 1978-08-06 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-08-05 | 1982-02-04 | 1982-08-06 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-08-05 | 1986-02-04 | 1986-08-06 | $7700.00 | Window Closed / Lapsed |