Patent US3595598A successfully refreshed from Google Patents.
Patent US3681564A successfully refreshed from Google Patents.
US3681564A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Automatic oscillating arc welding method and apparatus
Assignee: Nippon Steel Corp
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Filing: 1971-04-06
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Granted: 1972-08-01
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Expires: 1991-04-06
Abstract
Abstract Method of operating an apparatus for automatic arc welding with the welding head oscillating to form figure eight patterns, such oscillating motion being carried out by compounding, on an oscillating motion compounding shaft, two reciprocating motions in different directions, which is converted into one original rotation, such compounding and conversion being done in one and the same apparatus.
Inventors
- 👤 Yoshio Hiyama
- 👤 Haruo Fujita
- 👤 Eiichi Tsunetomi
- 👤 Kan Okada
- 👤 Satoshi Kude
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-29 03:47
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/24; B23K9/28; B23K9/30
Claims Analysis
Total Claims: 8
Claim 1
Independent Claim
287 words
A method of operating a welding apparatus for welding two elements to each other, which elements have surfaces along which the weld is to be made, which surfaces are at an angle to each other, the method comprising moving the welding apparatus along said surfaces in the angle which the surfaces make with each other, stopping the apparatus periodically, and when the apparatus is stopped, operating driving means to supply rotary motion to two rotary motion converting means forming part of the welding apparatus for converting the rotary motion to reciprocal motion, one of the rotary motion converting means being driven at twice the speed of rotation of the other, each of the rotary motion converting means including a rotary member having a projecting axle adjustably mounted for diametrical adjusting movement thereon, an oscillating shaft pivotally connected at one end to the projecting axle and guide means engaging the guide shaft for guiding the other end thereof in reciprocating movement, at least one of the guide means guiding the oscillating shaft guided thereby for linear reciprocating motion, the welding apparatus further having a motion compounding shaft to which the other ends of the respective oscillating shafts are coupled and a welding head coupled to the motion compounding shaft, and setting the positions of the projecting axles on the rotary members of the rotary motion converting means and the angle between the diametrical adjusting movement so that the welding head is moved in a path having a shape generally in the shape of a thin figure eight lying on its side with the ends depending generally in the shape of an inverted U, so that the legs of the weld will lie along the surfaces to be welded.
Claim 2
Independent Claim
287 words
A method of operating a welding apparatus for welding two elements to each other, which elements have surfaces along which the weld is to be made, which surfaces are at an angle to each other, the method comprising moving the welding apparatus along said surfaces in the angle which the surfaces make with each other, stopping the apparatus periodically, and when the apparatus is stopped, operating driving means to supply rotary motion to two rotary motion converting means forming part of the welding apparatus for converting the rotary motion to reciprocal motion, one of the rotary motion converting means being driven at twice the speed of rotation of the other, each of the rotary motion converting means including a rotary member having a projecting axle adjustably mounted for diametrical adjusting movement thereon, an oscillating shaft pivotally connected at one end to the projecting axle and guide means engaging the guide shaft for guiding the other end thereof in reciprocating movement, at least one of the guide means guiding the oscillating shaft guided thereby for linear reciprocating motion, the welding apparatus further having a motion compounding shaft to which the other ends of the respective oscillating shafts are coupled and a welding head coupled to the motion compounding shaft, and setting the positions of the projecting axles on the rotary members of the rotary motion converting means and the angle between the diametrical adjusting movement so that the welding head is moved in a path having a shape generally in the shape of a thin figure eight lying on its side with the ends depending generally in the shape of an inverted U, so that the legs of the weld will lie along the surfaces to be welded.
Claim 3
Dependent Claim
45 words
The method as claimed in claim 1 in which the positions of the projecting aXles on the rotary members and the angle between the diametrical adjusting movement are set so that the opening of the U faces the angle between the surfaces to be welded.
Claim 4
Dependent Claim
47 words
The method as claimed in claim 1 in which the positions of the projecting axles on the rotary members and the angle between the diametrical adjusting movement are set so that the opening of the U faces away from the angle between the surfaces to be welded.
Claim 5
Independent Claim
116 words
A method of welding two elements to each other, which elements have surfaces along which the weld is to be made, which surfaces are at an angle to each other, the method comprising the steps of moving a welding apparatus along said surfaces in the angle which the surfaces make with each other, stopping the apparatus periodically, and when the apparatus is stopped, moving the weld head of the apparatus in a path having a shape generally in the shape of a thin figure eight lying on its side with the ends depending generally in the shape of an inverted U, so that the legs of the weld will lie along the surfaces to be welded.
Claim 6
Independent Claim
116 words
A method of welding two elements to each other, which elements have surfaces along which the weld is to be made, which surfaces are at an angle to each other, the method comprising the steps of moving a welding apparatus along said surfaces in the angle which the surfaces make with each other, stopping the apparatus periodically, and when the apparatus is stopped, moving the weld head of the apparatus in a path having a shape generally in the shape of a thin figure eight lying on its side with the ends depending generally in the shape of an inverted U, so that the legs of the weld will lie along the surfaces to be welded.
Claim 7
Dependent Claim
30 words
A method as claimed in claim 4 in which the weld head is moved so that the opening of the U faces the angle between the surfaces to be welded.
Claim 8
Dependent Claim
32 words
A method as claimed in claim 4 in which the weld head is moved so that the opening of the U faces away from the angle between the surfaces to be welded.
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) | 1975-08-01 | 1976-01-31 | 1976-08-01 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-08-01 | 1980-01-31 | 1980-08-01 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-08-01 | 1984-01-31 | 1984-08-01 | $7700.00 | Window Closed / Lapsed |