US355656A - Machines - Google Patents

Description

v (No Model.) v J. .H. NORTHRQP.

SPINDLE SUPPORT FOR SPINNING MACHINES.

No. 355,656. Patented Jan. 4', 1887.

* UNITED ST TES PATENT Fries.

JAMES H. NORTHROP, OF HOPEDALE, MASSACHUSETTS, ASSIGNOR TO GEORGE DRAPERXSDV SONS, OF SAME PLACE.

SPlNDLE-SUPPORT FOR SPINNING-.MACHINES.

SPECIFICATION-forming part of Letters Patent. No. 355,656, dated January 4:, 1887.

Application filed October 19, 1885; Serial No. IE'OfiElO. (No model.)

To all whom it may concern:

Be it known that I, JAMES H. NoR'rHRor, of Hopedale, county of Worcester, and State of Massachusetts, have invented an Improvement in Spindle-Supports for Spinning-Ma chines, of which the following description, in connection with the accompanying drawings, is a specification, like letters on the drawings representing like parts. I

This invention is an improvement on that class of spindles wherein the pintle of the spindle is placed in abolster,the lower end of which is free to wander to a limited extent in an opening in a bolster-case, closed at its bottom to form an oil well or chamber.

In the class of spindle referred to the bolster is commonly surrounded by an elastic or fibrous packing, as inUnited States Patent N 0.227 129,

dated May 4, 1880, to which reference may be spindle; and to overcome this difficulty is the object of this invention.

In my experiments to secure steadiness of rotation of the spindle I have ascertained that the elastic packing surrounding the bolster may be dispensed with, provided the bolster is steadied by a friction device which presses upon it endwise orin the direction of its length, so that the bolster will derive all of its lateral movement from the spindle as the latter moves sidewise in its efforts to center itself to'its load.

In accordance with my invention I have provided a friction-check to co-operate with and hold the bolster where it is left by the spindle; and my invention consists in the combination, with a spindle, bolster, and-bolster-case, of a friction-check to co-operate with and hold the bolster in the position in'which it is left by the spindle as the latter finds its true center of rotation. r

Figure 1, in vertical section, shows a bolster,

its cooperating friction devices, the bolstercase, rail, nut, and sleeve-whirl, the spindle being shown in elevation. Fig. 2 is a side elevation of the bolster and its attached parts removed from the bolster-case, and Fig.3 a section in the line a? 00, Fig. 1.

The step-rail A receivesin it the shank B of the bolster-case B, held in place by the nut B the bolster-case being bored or chambered to contain oil.

The spindle O has a sleeve-whirl,G, which is extended down over the spindle, all as usual.

The bolster (1, near the center of its length, is enlarged or made somewhat spherical, as at d, to fit the inner bore of the bolster-case, the

bolster above and below the said middle part, d, being of smaller diameter, so that the said bolster can tip in the bolster-case and enable the foot of the spindle to find its true center of rotation with relation to the load on the spindle. As herein shown,the lower extremity of the bolster is reduced in diameter for a part of its length,such reduced portion receiving upon it a washer or plate, a, of a size to substantially fit the interior of the bolster-case. The central opening, a, in the plate a is a little larger than the reduced part of the bolster withinthe said opening a,so that the bolster, acted upon by the spindle, may tip or move for the required or necessary distance. The plate a will be notched at one edge, as shown, to enable it to pass the pin (1. which latter enters a groove in the enlarged part, (1, and restrains the rotation of the bolster in the bolster-case.

On the reduced part of the bolster,be1ow and next the plate a, is placed a loose collar, b, which is kept pressed against the plate, preferably by a rather stiff spiral spring, I), kept in place by the pin 11.

In operation the plate a, fitting the interior of the bolster-case, remains in fixed position while the spindle rotates in the bolster, restrained from rotation by the pin a and asthe spindle tips to find its true center of rotation I thereduced part of the bolster is tipped.

The shoulder 3 of the bolster rests on the plate a,and is held in contact therewith by the pressure of the spring b and loose collar b,and [0O consequently the movement of the bolster is requirements of the spindle to find its truecenter of rotation overcome the friction between the parts referred to.

The friction of the shoulder 3 and collar on the fixed plate a is sufficient to retain the bolster where left by the foot of the spindle, and

the bolster will remain in such position until, by a change of load or otherwise,the spindle, to run true, needs to find another center.

Believing myself to be the first to restrain the lateral or tipping movement of the bolster in the bolster-case by a friction device or check which presses endwise on the bolster and thus holds it where it is left by the spindle without tendency to resume its central position, I desire it to be understood that I do notintend to limit my invention to the exact form of friction device or check herein shown,for it is obvious that other equivalent forms of friction device might be employed without departing from my invention; and so,'also, I do not desire to limit my invention to the exact form of bolster-case or surrounding metal portion for supporting the bolster.

I claim I a The spindle, the bolster-case,and the bolster therein, combined with a friction-check pressing endwise on or in the direction of the length of the said bolster and thus adapted to restrain the lateral movements thereof, substantially as described. v In testimony whereof I have signed my name to this specification in the presence of two subscribing witnesses.

JAMES H. NORTHROP. Witnesses: 1 WM. F. DRAPER, F. J. BUTCHER.

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