US3863485A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Press and method for coin pressing articles
Assignee: Federal Mogul Engineering Ltd
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Filing: 1973-05-11
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Granted: 1975-02-04
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Expires: 1993-05-11
Abstract
Abstract This invention is a machine and method for coin-pressing flat strip blanks into semi-cylindrical bearing shells. After a pair of tools have been brought together to form the shell, the tools start to part and the shell is retained on one of them; then a pair of fingers engage the edges of the shell to hold it after it is released from the tool. In order to get proper release from the tool, detents on the fingers move in by cam action to lever the shell from the tool, and a side flange in the tool is moved away from the shell so that the shell is free to be released by the detents. Finally a magnetic delivery member moves into the press under the located shell, the fingers move apart to release the shell and let it drop on to the delivery member, and the delivery member moves out of the press and takes the shell with it.
Inventors
- 👤 Frank Macdonald
- 👤 David Michael Gardner
- 👤 Roy Stephens
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-07 11:15
CPC Classifications
B; B21; B21D; B21D53/00; B21D53/10; B21K; B21K1/00; B21K1/04
Claims Analysis
Total Claims: 11
Claim 1
Independent Claim
132 words
A press for coin-pressing separate blanks into semicylindrical bearing shells including a pair of forming tools having complementary opposed semi-cylindrical surfaces for forming opposite faces of the shells, and a mechanical drive for bringing the tools together to form the shells, and including also side pieces arranged to come together to clamp the side faces of the blanks while they are being formed into the semicylindrical shape, but to be released after the forming tools move apart when the shells have been formed, a member having a surface which is held against the joint faces of the shells to locate them during forming, whereby all the faces of the blanks are located during forming and retaining means locating said shells in position after forming and following release thereof from said forming tools.
Claim 2
Dependent Claim
132 words
A press for coin-pressing separate blanks into semicylindrical bearing shells including a pair of forming tools having complementary opposed semi-cylindrical surfaces for forming opposite faces of the shells, and a mechanical drive for bringing the tools together to form the shells, and including also side pieces arranged to come together to clamp the side faces of the blanks while they are being formed into the semicylindrical shape, but to be released after the forming tools move apart when the shells have been formed, a member having a surface which is held against the joint faces of the shells to locate them during forming, whereby all the faces of the blanks are located during forming and retaining means locating said shells in position after forming and following release thereof from said forming tools.
Claim 3
Dependent Claim
35 words
A press as claimed in claim 1 and which further includes a delivery device for delivering each formed shell from the position in which it is retained and located following release from said forming tools.
Claim 4
Dependent Claim
33 words
A press as claimed in claim 2 and which further includes means for moving said delivery device into the press to collect each shell from the located position and for then withdrawing it.
Claim 5
Dependent Claim
35 words
A press as defined in claim 3 and which further includes means for releasing each shell from said retaining and locating means after said delivery device has moved into the press to collect the shell.
Claim 6
Dependent Claim
27 words
A press as defined in claim 2 wherein said delivery device has a configuration conforming to that of the shell for holding the shell orientated during delivery.
Claim 7
Dependent Claim
43 words
A press as defined in claim 1 wherein said retaining means for locating each shell after forming and following release thereof from said forming tools are arranged on opposite sides of the shell and have surfaces for gripping opposite sides of the shell.
Claim 8
Dependent Claim
61 words
A press as defined in claim 1 wherein said side pieces for clamping the side faces of the bearing blanks while they are being formed into the semi-cylindrical shell shape are correlated to one of said forming tools and also function to hold the formed bearing shell on that tool during the first part of the movement of the tools apart.
Claim 9
Dependent Claim
41 words
A press as defined in claim 7 wherein said side pieces are constituted by flanges on one of said forming tools, and one of said flanges is released upon completion of the first part of the movement of the tools apart.
Claim 10
Dependent Claim
48 words
A press as defined in claim 1 and wherein said retaining and locating means for each shell subsequent to formation thereof includes a finger portion serving to separate the shell from one of the tools upon completion of a first part of the movement of the tools apart.
Claim 11
Dependent Claim
52 words
A press as claimed in claim 1 and which further includes a delivery device for delivering each formed shell from the position in which it is retained and located following release from said forming tools, said delivery device being provided with magnEtic means for keeping the formed bearing shell engaged with it.
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) | 1978-02-03 | 1978-08-05 | 1979-02-04 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-02-03 | 1982-08-05 | 1983-02-04 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-02-03 | 1986-08-05 | 1987-02-04 | $7700.00 | Window Closed / Lapsed |