US378877A

US378877A - Chusetts

Info

Publication number: US378877A
Authority: US
Publication date: 1888-03-06
Anticipated expiration: 1905-03-06

Description

(N0 Mbdel.)

W. F. &G. A. DRAPER.

SUPPORT FOR SPINNING SPINDLES.

Patented Mar. 6, 1888 UNITE STATES PATENT OFFICEO WILLIAM F. DRAPER AND GEORGE A. DRAPER, OF HOPEDALE, MASSA- CHUSETTS, ASSIGNORS TO GEORGE DRAPER & SONS, OF SAME PLACE.

SUPPORT FOR SPINNING=SPINDLES.

SPECIPiCA'IION forming part of Letters Patent No. 378,877, dated March 6, 1888.

Application filed August 15, 1887. Serial No. 246,994. (No model.)

To all whom it may concern.-

Be it known that we, WILLIAM F. DRAPER and GEORGE A. DRAPER, of Hopedale, in the;

companying drawings, is a specification, like letters on the drawings representing like parts.

In that class of spindles having a tapering pintle much trouble is experienced in securing a uniform fit between the tapering exterior of the pintle and the interior of the bolster having a tapering bore, makers of such spindles aiming at great accuracy of fit to thereby insure steadiness of rotation and equal distribution of wear of the parts.

Our invention consists in a bolster-case, a bolster placed therein loosely and having a tapering interior, and a threaded step upon which the spindle rests and to which the said bolster is adj ustably attached, combined with a locking device to hold the said bolster in adjusted position, as will be described.

Figure l, in vertical section, shows a spindle-bearing and rail embodying this invention, the spindle shown in elevation having its whirl in section. Fig. 2 is a sectionof Fig. 1 below the dotted line as x; and Fig. 3 is a modification showing the fibrous packing omitted from the bearing portion 7).

The rail A, spindle B, having a sleeve-whirl, O, and the bolter-case D and nut E are and may be all as usual.

The spindle B has a tapering pintle, a, which it is desired shall always be supported uniformly and evenly at its sides by the interior side walls of the bolster b, the bore made in the bolster to form its interior lateral bearingsurface being the same taper as the pintle. The lower end or extremity of the pintle rests on the step c, the latter sustaining substantially the weight of the spindle, the tapering interior of the bolster fitting the tapering exterior of the pintle from the step c to a point preferably above the band-pull. The adjust ment between the bolster and step is made by or through the screw-thread e, by which the parts b and a are joined, the adjustment or relative movements of the parts longitudinally being effected by the rotation of the bolster b, while the step portion 0 is restrained from rotation by a pin or projection, e, in the case D, entering a notch, as c, in the step. By r0- any desired number and more or less close together, and the pin or projection, constituting a locking device to retain the parts in adjusted position. W'e have shown the portion 1) as provided with holes for oil, and the said portion 12 is shown as surrounded by a fibrous packing, as 1), to thus enable the lateral bear ing portion to movein the bolster-case and follow the pintle of the spindle in its vibrations; but we desire to have it understood that the said fibrous packing may be omitted from the portion 12, as in Fig. 3.

In order that the lateral bearing portion 12 of the bolster may be connected to the step, so as to move with the pintle and not move the step for like distance, we have so cut the screwthreads connecting the portion 1) with the step as to leave considerable play between the threads.

We claim- 1. The bolster-case, the bolster I), placed therein loosely, and having a tapering interior, and the threaded step upon which the spindle rests and to which the said bolster is adjustably attached, combined with looking devices to hold the said bolsterin adjusted position, substantially as described.

2. The spindle, the bolster-case, and bolster held therein, made to constitute a lateral hearing portion, a step portion and means to connect them in an adjustable manner, combined with two pins or projections to restrain the rotation of. both the bolster and the step by the action of the spindle, yet permit the said parts to be adjusted one-with relation to the other longitudinally when desired, as and for the purpose set forth.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

WM. F. DRAPER.

GEO. A. DRAPER.

Witnesses:

G. W. GREGORY, F. L. EMERY.