US3870853A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Traveling welding machine
Assignee: Paper Calmenson and Co
•
Filing: 1973-08-01
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Granted: 1975-03-11
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Expires: 1993-08-01
Abstract
Abstract A traveling welding machine which simultaneously holds and welds the flanges to the web of built up plate girders while using the girder as a track and guide.
Inventors
- 👤 Paige J Reinhardt
- 👤 Fred A Olson
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 06:58
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/02; B23K9/025; B23K9/0256; B23K37/00; B23K37/02; B23K37/0211; B23K37/0217; B23K37/0223
Claims Analysis
Total Claims: 2
Claim 1
Independent Claim
340 words
A traveling welding machine for simultaneously holding, guiding, welding and propelling the welding machine along components of an unwelded girder having a web and a first flange and a second flange to thereby produce a welded plate girder, said traveling welding machine comprising: a support member for extending transverse of a girder to be welded, said support member including a first set of rollers for rollably transferring and supporting the traveling welding machine in an upright position, said first set of rollers having axis of rotation located in a first plane, said first set of rollers operable for forming rolling engagement with the web of a girder; a second set of rollers for guiding said welding machine, said second set of rollers operable for forming rolling engagement with said first and said second flange of said girder, said second set of rollers having axis of rotation substantially perpendicular to said first set of rollers so that said second set of rollers can maintain the orientation of said support member with respect to the girder that is being welded; a third pair of rollers located in a spaced relationship and having axis of rotation substantially parallel to said second set of rollers, said third set of rollers operable for forming rolling engagement with said first and said second flange of said girder; a power actuated member attached to said third pair of rollers for simultaneously compressing the components of the girder into a weldable position and for propelling the traveling welding machine along the girder to be welded; welding means mounted on said welding machine for welding the components of the girder into an integral plate girder member including a pair of welding heads, a pair of flux supply units, a pair of welding rod supply units and a pair of ducts for removing excess flux; whereby said welding means, said guide mechanism and said rollers mounted on said support member coact to simultaneously perform the function of holding, guiding, compressing, welding and propelling the welding machine along an unwelded girder.
Claim 2
Dependent Claim
340 words
A traveling welding machine for simultaneously holding, guiding, welding and propelling the welding machine along components of an unwelded girder having a web and a first flange and a second flange to thereby produce a welded plate girder, said traveling welding machine comprising: a support member for extending transverse of a girder to be welded, said support member including a first set of rollers for rollably transferring and supporting the traveling welding machine in an upright position, said first set of rollers having axis of rotation located in a first plane, said first set of rollers operable for forming rolling engagement with the web of a girder; a second set of rollers for guiding said welding machine, said second set of rollers operable for forming rolling engagement with said first and said second flange of said girder, said second set of rollers having axis of rotation substantially perpendicular to said first set of rollers so that said second set of rollers can maintain the orientation of said support member with respect to the girder that is being welded; a third pair of rollers located in a spaced relationship and having axis of rotation substantially parallel to said second set of rollers, said third set of rollers operable for forming rolling engagement with said first and said second flange of said girder; a power actuated member attached to said third pair of rollers for simultaneously compressing the components of the girder into a weldable position and for propelling the traveling welding machine along the girder to be welded; welding means mounted on said welding machine for welding the components of the girder into an integral plate girder member including a pair of welding heads, a pair of flux supply units, a pair of welding rod supply units and a pair of ducts for removing excess flux; whereby said welding means, said guide mechanism and said rollers mounted on said support member coact to simultaneously perform the function of holding, guiding, compressing, welding and propelling the welding machine along an unwelded girder.
References Cited (Backward Citations)
US3291360A
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US3164713A
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US3444352A
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US3712529A
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US3764056A
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USPTO Annuity & Maintenance Windows
| Annuity Stage | Window Opens | Payment Deadline | Surcharge Period Until | Estimated Fee | Status |
|---|---|---|---|---|---|
| 3.5 Years (Year 4) | 1978-03-10 | 1978-09-09 | 1979-03-11 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-03-10 | 1982-09-09 | 1983-03-11 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-03-10 | 1986-09-09 | 1987-03-11 | $7700.00 | Window Closed / Lapsed |