Sealed feather picking unit

Details Sealed feather picking unit Sealed feather picking unit

1978-07-28

1979-11-27

Abercrombie, Willie G.

A22C 2102

Patent

active

041753020

ABSTRACT:
A rotary picking unit has its drive shaft journaled by bearings that must be sealed against exposure to moisture and the escape of lubricant. A housing which contains the bearings is fitted at its open end with an annular seal that is disposed outwardly adjacent the bearings in surrounding, sealing relationship with the shaft which projects outwardly from the housing and carries feather picking means at its outer end. A close fitting sleeve, preferably of a synthetic resinous material, surrounds that portion of the shaft projecting outwardly from the seal and is held stationary during rotation of the shaft within the sleeve so as to keep feathers, grit and grime from working along the shaft and deteriorating the interface between the shaft and the seal. The stationary sleeve bears against the backside of a rotating disc of the picking means and has a beveled outer end so that only a thin, knife edge of the sleeve actually makes contact with the disc. This minimizes the risk of pinching fine feathers between the end of the sleeve and the disc and forcing them to work along the shaft as it rotates relative to the sleeve.

REFERENCES:
patent: 3551942 (1971-01-01), Crane

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