US3907282A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Card feed mechanism
Assignee: IIS Inc
•
Filing: 1973-06-29
•
Granted: 1975-09-23
•
Expires: 1993-06-29
Abstract
Abstract A feed mechanism for punch cards or like sheet material whereby the punch card is quickly advanced and accurately positioned at a work station. The trailing edge of the punch card is used as a reference to register the punch card at the work station. The advancement and final registration are the result of two synchronized steps involving a register roll and a pusher blade. The register roll is effective during the first step to rapidly advance the trailing edge of the punch card into operative relationship with the reciprocating pusher blade; the latter at the commencement of the second step is cooperatively positioned to pick up the trailing edge of the punch card and carry it forward into final registration with respect to the work station. In the preferred embodiment of the present invention, the final registration involves the positioning of the punch card such that the first and second columnar positions are accurately aligned with respect to corresponding punches of a punch mechanism. Once registration has been effected, further advancement of the punch card is accomplished by somewhat independent indexing means. The system is further adapted to accomodate punch cards of different lengths.
Inventors
- 👤 Alexander Hunter
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-10-26 06:39
CPC Classifications
B; B65; B65H; B65H9/00; B65H9/10; B65H9/101; B65H9/103; B65H9/106; Y; Y10; Y10T; Y10T83/00; Y10T83/444; Y10T83/4564; Y10T83/4567
Claims Analysis
Total Claims: 5
Claim 1
Independent Claim
199 words
A feed mechanism for quickly advancing and accurately positioning a punch card being fed from a first station through a visible station to a second station, said first station comprising a feed roll for feeding punch cards one at a time from said first station into said visible station, said visible station comprising a selectively actuated register roll assembly, said second station comprising indexing means operative to engage said punch card after said punch card has been released from said visible station whereby said punch card is brought into final registration with said indexing means, said register roll assembly positioned intermediate said feed roll and said indexing means, said register roll assembly comprising a pressure roll and a pusher blade synchronously driven with respect to said pressure roll, means operatively connected to said pressure roll assembly to selectively initiate the operation thereof, said register roll being so configured and operatively conditioned during the initial portion of each operative cycle such that a substantial portion or said punch card being advanced from said first station to said second station passes said register roll and remains stationary thereat prior to initiation of a cycle of operation of said register roll assembly.
Claim 2
Dependent Claim
199 words
A feed mechanism for quickly advancing and accurately positioning a punch card being fed from a first station through a visible station to a second station, said first station comprising a feed roll for feeding punch cards one at a time from said first station into said visible station, said visible station comprising a selectively actuated register roll assembly, said second station comprising indexing means operative to engage said punch card after said punch card has been released from said visible station whereby said punch card is brought into final registration with said indexing means, said register roll assembly positioned intermediate said feed roll and said indexing means, said register roll assembly comprising a pressure roll and a pusher blade synchronously driven with respect to said pressure roll, means operatively connected to said pressure roll assembly to selectively initiate the operation thereof, said register roll being so configured and operatively conditioned during the initial portion of each operative cycle such that a substantial portion or said punch card being advanced from said first station to said second station passes said register roll and remains stationary thereat prior to initiation of a cycle of operation of said register roll assembly.
Claim 3
Dependent Claim
209 words
A feed mechanism for advancing a card from a supply station along a predefined path into a visible station and thereafter selectively releasing said punch card for advancement to a work station, said work station comprising means for accurately positioning said card, said visible station coMprising a card drive roll adjacent said path, drive means for selectively rotating said card drive roll during an operating cycle, the outer periphery of said card drive roll having a portion configured to provide unrestricted clearance for a card during an initial portion of a feed cycle during which said drive means is not rotating said card drive roll, said card drive roll having another portion configured to advance the card along the feed path during a subsequent portion of a feed cycle during which said drive means is operative to rotate said card drive roll, a pusher blade mounted adjacent said card drive roll, said pusher blade being adapted to contact the trailing edge of said card during the terminal portion of a feed cycle, and means operable in synchronism with said card drive roll for advancing said pusher blade to move said card a final increment into accurate position at said work station during said terminal portion of said feed cycle.
Claim 4
Dependent Claim
209 words
A feed mechanism for advancing a card from a supply station along a predefined path into a visible station and thereafter selectively releasing said punch card for advancement to a work station, said work station comprising means for accurately positioning said card, said visible station coMprising a card drive roll adjacent said path, drive means for selectively rotating said card drive roll during an operating cycle, the outer periphery of said card drive roll having a portion configured to provide unrestricted clearance for a card during an initial portion of a feed cycle during which said drive means is not rotating said card drive roll, said card drive roll having another portion configured to advance the card along the feed path during a subsequent portion of a feed cycle during which said drive means is operative to rotate said card drive roll, a pusher blade mounted adjacent said card drive roll, said pusher blade being adapted to contact the trailing edge of said card during the terminal portion of a feed cycle, and means operable in synchronism with said card drive roll for advancing said pusher blade to move said card a final increment into accurate position at said work station during said terminal portion of said feed cycle.
Claim 5
Dependent Claim
96 words
A feed mechanism constructed in accordance with the principles of claim 2 wherein said pusher blade is operatively connected to a cam, said cam having a surface comprising two dwell points, one of said dwell points imparting a near zero forward velocity component at the point in each operative cycle where said pusher blade comes into contact with the trailing edge of said card and the other of said dwell points imparting another near zero forward velocity component at the point in each operative cycle where registration of the card at said work station is complete.
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) | 1978-09-22 | 1979-03-24 | 1979-09-23 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1982-09-22 | 1983-03-24 | 1983-09-23 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1986-09-22 | 1987-03-24 | 1987-09-23 | $7700.00 | Window Closed / Lapsed |