US3811548A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Stop motion converter
Assignee: Individual
•
Filing: 1972-09-05
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Granted: 1974-05-21
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Expires: 1992-09-05
Abstract
Abstract There is provided a stop motion conveyer for advancing a series of work holders in step-by-step relation to a work station from a continuous supply of work holders, each of the work holders having a plurality of work positions sequentially alignable at the work station. The conveyer includes a table supporting the work holders through their movement past the work station. A drive mechanism is provided reciprocable through advance and return strokes and engageable with a forward one of the work holders. The drive mechanism includes a retracting mechanism for disengaging the drive mechanism during a return stroke. Additionally, a stop mechanism is provided synchronized with the drive mechanism and engageable with the next one of the work holders for retarding the advancement thereof until the drive mechanism has advanced the forward one of the work holders out of the path of travel of the next one of the work holders. Thus, the second and subsequent work holders are biased in abutting relation toward the work station, and the stop means retards the forward movement of the second and subsequent work holders and prevents them from running into and dislocating the forward one of the work holders as it passes through the work station.
Inventors
- 👤 F Neff
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-27 08:56
CPC Classifications
B; B65; B65G; B65G25/00; B65G25/04; B65G25/08; B65G25/10; B23; B23Q; B23Q16/00; B23Q7/00; B23Q7/14; B23Q7/1426; B23Q7/1478; B23Q7/1489; H; H05; H05K; H05K13/00
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
286 words
In combination, a plurality of work holders, each of said work holders including a base having a finger engaging projection and a rearwardly opening groove; and a positioning mechanism for advancing each of said work holders in step-by-step relation through a work station, each of said work holders having a plurality of work positions sequentially alignable at said work station, said mechanism including; table means supporting said work holders through said work station, a drive mechanism reciprocable through advance and return strokes and including a reciprocable drive bar having a plurality of pivoted drive fingers mounted in spaced relation intermediate their ends sequentially engageable with the finger engaging projection of a forward one of said work holders; first drive means including a continuously rotating crank member and a crank rod interconnecting said crank member and said drive bar to reciprocate said drive bar; second drive means including a cam mechanism drivingly associated in synchronism with said crank member rotating said fingers into engageable position with said finger engaging projection during an advance stroke and out of engageable position with said finger engaging projection during a return stroke; a plurality of spaced stop members projectable against the surface of the base of said forward one of said work holders, said stop members sequentially projecting intO said rearwardly opening groove of said forward one of said work holders and into the path of travel of the next one of said work holders; and retracting means for retracting said stop members in synchronism with said drive mechanism to provide advance of said next one of said work holders on said transparent means into engagement with the forward most one of the stop members projected into said rearwardly opening groove.
Claim 2
Dependent Claim
286 words
In combination, a plurality of work holders, each of said work holders including a base having a finger engaging projection and a rearwardly opening groove; and a positioning mechanism for advancing each of said work holders in step-by-step relation through a work station, each of said work holders having a plurality of work positions sequentially alignable at said work station, said mechanism including; table means supporting said work holders through said work station, a drive mechanism reciprocable through advance and return strokes and including a reciprocable drive bar having a plurality of pivoted drive fingers mounted in spaced relation intermediate their ends sequentially engageable with the finger engaging projection of a forward one of said work holders; first drive means including a continuously rotating crank member and a crank rod interconnecting said crank member and said drive bar to reciprocate said drive bar; second drive means including a cam mechanism drivingly associated in synchronism with said crank member rotating said fingers into engageable position with said finger engaging projection during an advance stroke and out of engageable position with said finger engaging projection during a return stroke; a plurality of spaced stop members projectable against the surface of the base of said forward one of said work holders, said stop members sequentially projecting intO said rearwardly opening groove of said forward one of said work holders and into the path of travel of the next one of said work holders; and retracting means for retracting said stop members in synchronism with said drive mechanism to provide advance of said next one of said work holders on said transparent means into engagement with the forward most one of the stop members projected into said rearwardly opening groove.
Claim 3
Dependent Claim
67 words
The combination as set forth in claim 1 wherein said transport means consists of a continuously driven conveyer carrying a plurality of said work holders in abutting relation against said stop means, said conveyer being over-driven relative to the advance of said work holders whereby slippage between said conveyer and said work holders continuously biases said plurality of work holders in the direction of said work station.
Claim 4
Dependent Claim
41 words
The combination as set forth in claim 1 and including means for retracting said stop members in synchronism with said drive mechanism to provide advance of said next one and the remaining ones of said work holders on said transport means.
Claim 5
Dependent Claim
34 words
The combination as set forth in claim 1 wherein said positioning mechanism advances said work piece a fraction of the length of said work piece only for each advance stroke of said drive mechanism.
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) | 1977-05-20 | 1977-11-19 | 1978-05-21 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1981-05-20 | 1981-11-19 | 1982-05-21 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1985-05-20 | 1985-11-19 | 1986-05-21 | $7700.00 | Window Closed / Lapsed |