US3567096A
Expired / Lapsed
US
⏱️ 0.0 years remaining
Feed roll mechanism
Assignee: Leesona Corp
•
Filing: 1968-08-01
•
Granted: 1971-03-02
•
Expires: 1988-08-01
Abstract
Abstract A positive drive strand-handling mechanism for advancing one or more strands of yarn about a feed roll. The mechanism has provision for stopping the feed roll by disengaging a train of gears in the event of strand breakage, and for absorbing shock when the gears are engaged to again advance the strand. The shock-absorbing means is a gear on a common shaft with the feed roll, the gear having slots substantially encircling the shaft with means including resilient elements in the slots for absorbing shock and drivingly connecting the gear and the shaft.
Inventors
- 👤 Richard Brian Mcdermott
Bibliographic Details
Application Number
—
Jurisdiction
US
Data Source
google_patents
Last Synchronized
2026-11-01 12:28
CPC Classifications
B; B65; B65H; B65H63/00; B65H63/02; B65H63/024; B65H63/036; B65H63/0364; B65H2701/00; B65H2701/30; B65H2701/31; Y; Y10; Y10T; Y10T74/00; Y10T74/19; Y10T74/19633
Claims Analysis
Total Claims: 4
Claim 1
Independent Claim
237 words
A strand-handling mechanism comprising means including a feed roll operatively secured to a rotatably mounted shaft for advancing a strand, a first gear mounted on said shaft, a driven second gear normally releasably drivingly coupled with said first gear for operating the feed roll to advance the strand, means drivingly coupling said feed roll and said first gear for retarding transmission of shock to the strand upon initiating advancement of the strand and including, said first gear having a pair of slots generally concentric with said shaft, a pair of resilient members, one in each of said slots, cooperating means on said first gear and said shaft for compressing said resilient members responsive to shock and for drivingly connecting said shaft and said first gear and including pairs of abutments, one for each of said resilient members, each pair including an abutment on said first gear and another abutment on said shaft, the abutments of each pair embracing the respective member, operating means for disengaging and drivingly engaging said first and second gears and including, a first lever mounted for pivotal movement and carrying said second gear, a latching lever normally releasably latchingly engaged with said first lever for releasably retaining said first gear drivingly engaged with the second gear, and actuating means for moving said latching lever out of said latching engagement with said first lever for movement of the gears out of said driving engagement.
Claim 2
Dependent Claim
237 words
A strand-handling mechanism comprising means including a feed roll operatively secured to a rotatably mounted shaft for advancing a strand, a first gear mounted on said shaft, a driven second gear normally releasably drivingly coupled with said first gear for operating the feed roll to advance the strand, means drivingly coupling said feed roll and said first gear for retarding transmission of shock to the strand upon initiating advancement of the strand and including, said first gear having a pair of slots generally concentric with said shaft, a pair of resilient members, one in each of said slots, cooperating means on said first gear and said shaft for compressing said resilient members responsive to shock and for drivingly connecting said shaft and said first gear and including pairs of abutments, one for each of said resilient members, each pair including an abutment on said first gear and another abutment on said shaft, the abutments of each pair embracing the respective member, operating means for disengaging and drivingly engaging said first and second gears and including, a first lever mounted for pivotal movement and carrying said second gear, a latching lever normally releasably latchingly engaged with said first lever for releasably retaining said first gear drivingly engaged with the second gear, and actuating means for moving said latching lever out of said latching engagement with said first lever for movement of the gears out of said driving engagement.
Claim 3
Dependent Claim
64 words
A mechanism as set forth in claim 1 in which said actuating means comprises a cam on one of said gears and a cooperating abutment on said latching lever, an actuating member, and means mounting said actuating member for movement into a disengaging position between said cam and said abutment for moving the latching lever out of said latching engagement with said first lever.
Claim 4
Dependent Claim
41 words
A mechanism as set forth in claim 2 in which said mounting means normally maintains said actuating member out of said disengaging position and releases said actuating member for movement into said disengaging position responsive to a break in the strand.
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) | 1974-03-01 | 1974-08-31 | 1975-03-02 | $2000.00 | Window Closed / Lapsed |
| 7.5 Years (Year 8) | 1978-03-01 | 1978-08-31 | 1979-03-02 | $3760.00 | Window Closed / Lapsed |
| 11.5 Years (Year 12) | 1982-03-01 | 1982-08-31 | 1983-03-02 | $7700.00 | Window Closed / Lapsed |