US4247244A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Transfer mechanism
Assignee: JONES & LAMSON VERMONT CORP A CORP OF DE
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Filing: 1978-08-24
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Granted: 1981-01-27
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Expires: 1998-08-24
Abstract
Abstract A transfer mechanism for use in a header wherein transfer fingers are mounted in a horizontally movable finger head in a manner such that each finger can be deflected, as needed, to engage a workpiece, e.g., at the cut-off station, whether or not it has been accurately positioned, the workpiece being then automatically placed in the proper position for transferring accurately to the next station.
Inventors
- 👤 Terrence W. Coyle
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-31 12:45
CPC Classifications
B; B21; B21K; B21K27/00; B21K27/02; B21K27/04; B21J; B21J13/00; B21J13/08
Claims Analysis
Total Claims: 10
Claim 1
Independent Claim
113 words
In a header, a transfer mechanism comprising, a horizontally slidable transfer bar, drive means for moving said bar in the direction of workpiece transference, a transfer finger head adjustably mounted on said bar, means for effecting vertical adjustment of the finger head on the bar, upper and lower transfer fingers in pivotal engagement adjacent their rear ends with the transfer finger head, each finger having a work engaging surface adjacent its forward end, a first spring biasing the upper finger downward, a second spring biasing the lower finger upward, said springs being capable of exerting substantially unequal effective biasing forces, and means on the transfer finger head limiting the movement of said fingers.
Claim 2
Dependent Claim
113 words
In a header, a transfer mechanism comprising, a horizontally slidable transfer bar, drive means for moving said bar in the direction of workpiece transference, a transfer finger head adjustably mounted on said bar, means for effecting vertical adjustment of the finger head on the bar, upper and lower transfer fingers in pivotal engagement adjacent their rear ends with the transfer finger head, each finger having a work engaging surface adjacent its forward end, a first spring biasing the upper finger downward, a second spring biasing the lower finger upward, said springs being capable of exerting substantially unequal effective biasing forces, and means on the transfer finger head limiting the movement of said fingers.
Claim 3
Dependent Claim
27 words
A transfer mechanism according to claim 1 wherein at least one transfer finger is provided with a cam surface in a position to engage a misplaced workpiece.
Claim 4
Dependent Claim
33 words
A transfer mechanism according to claim 2 wherein the cam surface is on the upper finger and the work engaging surface of said finger includes a V-shaped socket portion adjacent the cam surface.
Claim 5
Dependent Claim
21 words
A transfer mechanism according to claim 3 wherein the workpiece engaging surface of the lower finger terminates in a beveled edge.
Claim 6
Dependent Claim
17 words
A transfer mechanism according to claim 1 wherein the springs are coaxially mounted helical springs under compression.
Claim 7
Dependent Claim
28 words
A transfer mechanism according to claim 5 wherein the spring biasing the lower finger upward exerts substantially more effective force than the spring biasing the upper finger downward.
Claim 8
Dependent Claim
27 words
A transfer mechanism according to claim 1 wherein the means limiting the upward movement of the lower finger is a bottom surface of the transfer finger head.
Claim 9
Dependent Claim
46 words
A transfer mechanism according to claim 1 wherein the pivotal engagement of each finger with the transfer finger head comprises a horizontally disposed pivot pin on the transfer finger head and a groove in the surface of the finger adapted to engage the respective pivot pin.
Claim 10
Dependent Claim
28 words
A transfer mechanism according to claim 8 wherein the fingers are held in engagement with the pivot pin entirely by the forces of the first and second springs.
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) | 1984-01-27 | 1984-07-28 | 1985-01-27 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1988-01-27 | 1988-07-28 | 1989-01-27 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1992-01-27 | 1992-07-28 | 1993-01-27 | $7700.00 | Window Closed / Lapsed |