Implements or apparatus for applying pushing or pulling force – Step-by-step traveling bar – Pawl actuated
Patent
1976-04-23
1978-05-09
Blix, Trygve M.
Implements or apparatus for applying pushing or pulling force
Step-by-step traveling bar
Pawl actuated
74804, B66D 100
Patent
active
040883060
ABSTRACT:
A winch for coiling rope or wire having a rope or wire-supporting drum mounted for free rotation, an off-drive shaft mounted axially to the drum, a clutch for engaging the drum to the shaft, a driving motor, a driving shaft rotatable by the motor and a gear reduction between the drive shaft and the off-drive shaft comprising, a drive sprocket eccentrically mounted on the drive shaft and freely rotatable thereon, a holding arm which keeps the drive sprocket from rotating as the drive shaft rotates, an off-drive sprocket connected to the off-drive shaft and axially aligned with the drive shaft, and rotation transmission chains on the off-drive sprocket which are engageable with at least a part of the drive sprocket. The drive sprocket undulates about the axis of rotation of the drive shaft and by its positive engagement with the inner surface of the transmission chain, transfers rotary energy to the off-drive sprocket, the relationship between drive shaft rotation and off-drive shaft rotation being a function of the difference between the sprocket radii.
REFERENCES:
patent: 1445151 (1923-02-01), Mercer
patent: 2418267 (1947-04-01), Lawler
patent: 2710738 (1955-06-01), Wittberger
patent: 3129611 (1964-04-01), Lee
patent: 3160032 (1964-12-01), Black
patent: 3307434 (1967-03-01), Kope
patent: 3320828 (1967-05-01), Grant
patent: 3627087 (1971-12-01), Eskridge
Blix Trygve M.
Noland Kenneth
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