US488688A

US488688A - carroll

Info

Publication number: US488688A
Authority: US
Publication date: 1892-12-27
Anticipated expiration: 1909-12-27

Description

(No Model.)

E. J. CARROLL.

SPINDLE STEP. No. 488,688. A Patented Dec. 27, 1892.

Unirse STATES PATENT OFFICE..

EDGAR J. CARROLL, OF WORCESTER, MASSACHUSETTS, ASSIGNOR TO VILLIAM T. CARROLL, OF SAME PLACE.

SPINDLE-STEP.

SPECIFICATION forming part of Letters Patent No. 488,688, dated December 27, 1892.

Application filed January 4, 1892. Serial No. 416,949. (No model.)

To all whom t may concern:

f Be it known that I, EDGAR J. CARROLL, of VOrCeSter, in the county of IVorcester, State of Massachusetts, have invented certain new and useful Improvementsin Spindle-Steps, of which the following is a description sufficiently full, clear, and exact to enable any person skilled in the art or science to which said invention appertains to make and use the saine, reference being had to the accompanying drawings, forming part of this specification, in which- Figure l is an elevation of a spindle showing my improved step in position, the rail being represented in section; Fig. 2 a like view showing the step supporting two spindles; Fig. 3 avertical transverse section enlarged of the bolster showing the step, in elevation; and Fig. 4 an elevation showing means for mounting the step on the lower rail.

Like letters and figures of reference indicate corresponding part-s in the different Iig'- ures of the drawings.

My invention relates especially to anadjustable step for spindles; and it consists in certain novel features hereinafter fully set forth and claimed, the object being to produce a simpler, cheaper and more effective device of this character than is now in ordinary use.

In the drawings, A represents the rail and B the spindle. The main parts of the bolster, D, and spindle are of the ordinary construction, said bolster being secured to the rail in the usual manner. The spindle case or bolster has its spindle opening extended through its lower end so that the spindle projects therethrough. I employ within the bolster a bushing, b, shown in Eig. 3 preferably constructed of wood prepared in oil to avoid the necessity of lubricating the spindle in the usual Way. The spindle tapers toward its step and the spindle opening in said bushing is tapered correspondingly. The spindle is held out of frictional contact with said bushing by means of the step hereinafter described. On the lower end of the bolster, D, below the rail a bracket, H, is constructed; the form shown in Fig.,1 being offset slightly from the spindle opening of the bolster and comprising a right angle-iron. The arm, d, of said bracket is tappedl vertically .to receive an arbor, f, fitted to rotate in said opening. on a screw, g, turned into the lower end of said opening. On the upper end of said arbor a horizontally arranged wheel, h, is mounted and projectsbelow the spindle opening of the bolster, D, in position to receive the lower end, z', of the spindle, B, for which it forms a step. The wheel, h, is constructed of a composition of paper stock or indurated fiber known as leatheroid and which is of eX- treme hardness. bearing on the side of the wheel, h, said wheel is gradually set in motion by the friction of the spindle, continually changing the point of'contact therewith. This wheel may be constructed of any material desired but I prefer that described as I find in practice that it avoids the necessity of lubricating the step, the peculiar nature of such material reducing the friction of the spindle thereon to a minimum. The wear resulting from, thel contact of the spindle is also greatly reduced by the rotary movement of the step wheel. Said wheel can be adjusted vertically to regulate the bearing of the spindle in its bushing by means of the screw, g.

In Fig. 2 a stub-shaft j is mounted in the rail, A, and the wheel, h, of enlarged diameteris journaled on said shaft. The ordinary bolsters, D, are in this case employed and said wheel is shaped to receive the bearing points, ,of two adjacent spindles. The wheel is adjustable vertically onthe shaft by means of nuts, 7c. In Fig. 3 said wheel is mounted on a shaft, q, in openings, of', in said arms, m, said shaft bearing on the points of two screws, if, turned through the lower ends of the arms, m, and held in position by check nuts, c. The wheel in this form will be set in motion by the rotation of the spindle and can be adjust,

ed vertically by means of said screws, t.

In Fig. 4 a standard, R, is substituted for the bracket, H, and is mounted in the lower rail, C, the wheel, h, being journaled in a fork at the upper end of said standard. The lower end of the standard is screw-threaded at, w, so that it may be adjusted vertically and check-nuts, secure it in position.

I do not confine myself to any method of mounting the step, but deem the wheel form- Said arbor bears As the spindle, B, rotates IOO ing an adjustable support for the spindle and journaled to rotate by contact therewith whereby the point. of contact may be continually changed, the preferable construction.

Having thus explained my invention, what I claim is- 1. The combination of a spindle the bolster provided with a spindle opening extending through its lower end with a wheel journaled below said opening in position to support the spindle, substantially as described.

2. The combination with aspindle; a bolster having a spindle opening extending through its lower end; and a Wheel journaled below said opening and forming a step for the spindle, the journal of said wheel being vertically adjustable, substantially as described.

3. The combination of a spindle; a bolster having a spindle opening extending through its lower end and with an arm projecting below the rail, a wheel journaled on said arm in position to ysupport the spindle, the journal of said wheel being vertically adjustable, substantially as described.

4. A spindle and a bolster' provided with a bracket projecting below the rail and a spindle opening extending through its lower end in combination with a wheel journaled to rotate horizontally in said bracket and projecting under the spindle opening of said bolster and mechanism for adjusting the wheel journal vertically, substantially as described.

5. The bolster, having the spindle opening, the bushing and spindle, in combination with the bracket, H, the arbor, f, adjustably journaled in said bracket and the wheel, h, on said arbor all being arranged to operate substantially as described.

f 6. The bolster provided with a spindle opening extending through its lower end in combination with the bushing therein having the taper spindle opening; the taper spindle disposed. in said bushing with its end projecting therethrough; and a step for said spindle comprising a wheel j ournaled below said opening and having a vertically adjustable journal whereby the bearing of the spindle in said bushing may be adjusted.

EDGAR J. CARROLL.

Witnesses:

JOHN S. SEARS, JOHN HEWITT.