Patent US3656680A successfully refreshed from Google Patents.
US3656680A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Apparatus for simultaneously welding pairs of reinforcing plates to a base plate
Assignee: JFE Engineering Corp
•
Filing: 1970-03-20
•
Granted: 1972-04-18
•
Expires: 1990-03-20
Abstract
Abstract An apparatus for welding reinforcing plates to a base plate. Two pairs of welding means respectively simultaneously deposit fillet welds at all four corners defined between the lower edges of a pair of upright reinforcing plates and the upper surface of a main base plate engaged by these lower edges, so that a pair of T-welds are simultaneously formed between the two reinforcing plates and the main base plate. After one pair of reinforcing plates are simultaneously welded in this manner to the main base plate, a second pair of reinforcing plates are simultaneously welded in the same way to the main base plate, so that pairs of T-welds are formed successively between pairs of the reinforcing plates and the main base plate.
Inventors
- 👤 Hirokazu Nomura
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-05 17:34
CPC Classifications
B; B23; B23K; B23K9/00; B23K9/02; B23K9/025; B23K9/0256; Y; Y10; Y10T; Y10T29/00; Y10T29/49; Y10T29/49826; Y10T29/49892; Y10T29/53; Y10T29/53539; Y10T29/53543; Y10T29/53548
Claims Analysis
Total Claims: 6
Claim 1
Independent Claim
261 words
In an apparatus for welding a plurality of upright reinforcing plates to a main base plate having an upper surface engaged by lower edges of the reinforcing plates so that each of the latter defines with the upper surface of the base plate a pair of elongated corners for receiving fillet welds to form Twelds between the several upright reinforcing plates and the base plate, at least two pairs of welding means one for simultaneously depositing fillet welds in the corners defined by the lower edge of one upright reinforcing plate and the upper surface of the base plate and the other for simultaneously depositing a pair of fillet welds in the corners defined between the lower edge of another upright reinforcing pate and the upper surface of the base plate, carriage means carrying said pairs of welding means for simultaneously moving them along the four corners defined between the latter upright reinforcing plates and the base plate so as to simultaneously weld both of the latter reinforcing plates to the base plate with a pair of fillet welds simultaneously deposited at the corners defined by each of the latter reinforcing plates with the base plate, and crane means carrying said carriage means, said carriage means being operatively connected with the pairs of welding means for moving the latter along the said corners defined between the reinforcing plates and base plate and said crane means carrying said carriage means and the pairs of welding means with the latter for movement perpendicularly to the latter corners transversely of the upright reinforcing plates.
Claim 2
Dependent Claim
261 words
In an apparatus for welding a plurality of upright reinforcing plates to a main base plate having an upper surface engaged by lower edges of the reinforcing plates so that each of the latter defines with the upper surface of the base plate a pair of elongated corners for receiving fillet welds to form Twelds between the several upright reinforcing plates and the base plate, at least two pairs of welding means one for simultaneously depositing fillet welds in the corners defined by the lower edge of one upright reinforcing plate and the upper surface of the base plate and the other for simultaneously depositing a pair of fillet welds in the corners defined between the lower edge of another upright reinforcing pate and the upper surface of the base plate, carriage means carrying said pairs of welding means for simultaneously moving them along the four corners defined between the latter upright reinforcing plates and the base plate so as to simultaneously weld both of the latter reinforcing plates to the base plate with a pair of fillet welds simultaneously deposited at the corners defined by each of the latter reinforcing plates with the base plate, and crane means carrying said carriage means, said carriage means being operatively connected with the pairs of welding means for moving the latter along the said corners defined between the reinforcing plates and base plate and said crane means carrying said carriage means and the pairs of welding means with the latter for movement perpendicularly to the latter corners transversely of the upright reinforcing plates.
Claim 3
Dependent Claim
44 words
The combination of claim 1 and wherein an adjusting means is operatively connected with the pairs of welding means for adjusting the distance therebetween in accordance with the distance between the pair of upright reinforcing plates which are simultaneously welded to the base plate.
Claim 4
Dependent Claim
62 words
The combination of claim 2 and wherein said crane means is a bridge crane having a pair of opposed uprights between which the main plate extends with the reinforcing uprights thereon, and an upper transverse beam extending between and carried by said uprights and supporting said carriage means for movement, said beam extending parallel to the corners which receive the fillet welds.
Claim 5
Dependent Claim
146 words
The combination of claim 3 and wherein one of said pairs of welding means is situated on one side of said carriage means and the other of said pairs of welding means is situated on the other side of said carriage means with the latter and said transverse beam of said crane means situated over a space between the pairs of welding means, said adjusting means including a pair of rotary screws carried by said carriage means and extending therefrom perpendicularly to said transverse beam, a pair of carriers threaded on said screws for movement axially thereof in response to rotary movement of said screws, said carriers respectively carrying said pairs of welding means, and a drive operatively connected to said screws for rotating the latter, so that with said adjusting means it is possible to precisely adjust the distance between the pairs of welding means.
Claim 6
Dependent Claim
137 words
The combination of claim 4 and wherein a pair of connecting means respectively connect said pairs of welding means to said carriers, said pair of connecting means respectively having bottom ends carrying supporting pins which extend parallel to said transverse beam, and each pair of welding means including a pair of welding units freely swingable on a supporting pin and respectively having centers of gravity spaced on opposite sides of a vertical plane which contains the axis of the supporting pin, so that each pair of welding means has a pair of lower ends which tend to swing inwardly toward each other, and the lower ends of each pair of welding means being located at a pair of corners defined between the lower edge of an upright reinforcing plate and the upper surface of the main plate.
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) | 1975-04-18 | 1975-10-18 | 1976-04-18 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1979-04-18 | 1979-10-18 | 1980-04-18 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1983-04-18 | 1983-10-18 | 1984-04-18 | $7700.00 | Window Closed / Lapsed |