US984A - Self-tightening bush for mill-spindles - Google Patents

Description

H. FLINCHBAUGH. Tightening Bush. fora Mills.

Patented 0t. 19', 1838.

UNITED STATES PATENT OFFICE.

HENRY FLINCHB AUGH, OF LAMPETER TO'WNSHIP, PENNSYLVANIA;

SELF-TIGHTENING BUSH FOR MILL-SPINDLES.

Specification of Letters Patent No. 984, dated October 19, 1838.

T0 all whom it may concern Be it known thatI, HENRY FLINCHBAUGH, of Lampeter. township, in the county of Lancaster and State of Pennsylvania, miller, have invented a new and useful Improvement in Grist or Flour Mills, called a Selfto the grooves mentioned in the bush. When these followers are put in their place around the spindle (K) and the customary piece of stout leather is inserted between the followers and spindle the top of the followers and bush will be in the same plane and form, a nearly even surface. There is still, however,

an opening between the two followers which suffer them to tighten on the spindle as they sink downward. On the lower end of each of these followers is a projection eX- tending some distance below the followers. In these are two iron links which connect with a forked lever (C) (Fig. 6). This lever has near its middle, two projections, or props, (D) which rest upon the bottom of the bed stone; and at its extremity is a cord (E), passing through a pulley. To the end of this cord a weight or power is attached; bythis means the followers areal ways kept down to the spindle; and by means of the tapering grooves they are tightened to the spindle. In this bush are four holes, at equal distances, through which bolts are let which screw it fast to a plate beneath the bed stone. There are four other holes in the bush into which wooden plugs are driven for the purpose of nailing upon the bush a sheet iron covering, (G) which prevents all manner of dirt from entering between the spindle and followers. A. sheet iron plate (H) of lesser diameter 'with a square hole in the center to fit on the square end of the spindle, serves further to exclude all dirt. And for the purpose of keeping the spindle sufliciently oiled, at all times, a small tube (I) is made of tin or copper which, after passing down through the husk and under the bed stone, comes up through the bush, through an opening made for that purpose and communicates with the spindle and followers, as at (L). The mouth of this tube extends a short distance above the husk, so as to give suflicient head to force the oil from the mouth to the spindle.

What I claim as my invention and desire to secure by Letters Patent is The combination of the bush and followers constructed and acting as herein de scribed, and also the within. described methodv of conveying the oil to the spindle.

HENRY FLINCHBAUGH.

Witnesses:

SAML. DALE, JAMES J. DALE,

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