US315615A - Belt-replacer - Google Patents

Description

(No Model.) 2 SheetsSheet 1.

J. J. HARNSBERGER.

BELT REPLAOER.

N0.315,615. Patented Apr. 14, 1885.

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(No Model.) 2 SheetsSheet 2.

J. J. HARNSBERGER.

BELT REPLAOER.

No. 315,615. Patented Apr. 14, 1885.

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UNITED STATES PATENT rricn.

JAMES J. HARNSBERGER, OF DECATUR, ILLINOIS.

BELT-REPLACER.

SPECIFICATION forming part of Letters Patent No.315,615, dated April 14, 1885.

' Application filed February 24, 1885. (No model.)

To all whom, it may concern.-

Be it known that I, James J. HARNSBER- GER, a resident of Decatur, in the county of Macon and State of Illinois, have invented certain new and useful Improvements in Belt- Replacers, of which the following is a specification.

My invention consists in certain peculiarities of construction and combinations of parts, as will be hereinafter set forth and claimed.

In the drawings accompanying and forming a part of this specification, Figure 1 represents the beginning, and Fig. 2 the completion, of the operation of placing a belt on its pulley by means of my device. Fig. 3 is a perspective representation of my device, and Fig. 4 an elevation of certain details of construction of the same.

a is a trip-lever that is operated by the belt for the purpose of disconnecting the replacer from the wheel. I) is a lever 'used to attach the replacer to awheel or pulley. c is a hearing for the trip-lever a. (Z is a clamp-bar that reaches across the face of the pulley. e is an adjustable continuation of d. f is a pivoting clamp-jaw formed of the termination of lever b. g is a plate-spring secured to the under surface of bar d. h is a clamp-jaw rigid on plate 6. t is a rod that passes through triplever d, and is adjustably connected with clamp-lever b.

It represents a parallel-surfaced formation of rod t, that enables the same to be rotated with a wrench or with the fingers. Z isa por tion of bearing 0 that acts as a rest for the end of rod '5. m in Fig. at is a nut for rod i, pivoting loosely in lever b. n is the pulley-belt.

To place a belt on a pulley by means of my device, the belt is drawn up against the face of the pulley, substantially as shown in Fig. 1, and secured in position by the clamps. The pulley is then rotated sufficiently to carry the belt and replacer into the position indicated in Fig. 2, when the said belt will operate the trip-lever of the replacer and slip into position simultaneously. The rod 2' slides loosely in lever to when unrestrained, and acts as a brace to hold clamp-jaw f against the rim of the pulley when said rod rests against stop Z, as shown in Fig. 3.

In securing the belt to the face of a pulley the end of rod is raised clear of stop Z, and said rod permitted to slide through lever (6 until clamp-jaw f is opened sufficiently to pass over the rim of the pulley. Lever Z) is then used to force said clamp into position under the rim of the pulley, and should rod 2' prove to be too short or too long to fit closely against stop Zwhen the clamp is properly adjusted its length may be modified by turning it and screwing the threaded end threugh nut m.

When the device is attached to the pulley, spring g is forced against the belt until it comes in contact with bar (l, and the function of said spring is to assist the belt in throwing the replacer from the pulley when clamp f is released. The replacer may be adj ust-ed to accurately fit the rim of the pulley by means of the slots and bolts in plate 9.

As indicated in Fig. 4, lever to is recessed to receive the head of rod 'Z, and this arrangement enables said rod to be readily adjusted against stop Z.

To enable the same trip-lever to be operated on pulleys having different diameters, a series of pivot-holes are provided both in the lever and in its bearing-frame c.

As represented in Fig. 2, the trip-lever is sufficiently elevated by the belt to permit rod t to slide clear of stop Z, thereby disengaging clampf and permitting the belt, with the as sistance of spring 9, to throw the device from the pulley.

It is obvious that the belt will trip the lever in passing onto the pulley, as indicated in Fig. 2, and at no other time, and this peculiarity renders the operation of the rcplacer at all times effective and safe.

I claim as new and desire to secure by Letters Patent- 1. The combination, in a belt-replacer, of bar d, rigid jaw 7t, pivoting jaw f, lever b, brace-rod 2', stop Z, and a suitable trip-lever adapted to be thrown by the belt as it passes into positionon the pulley for the purpose of disconnecting the replacer from the pulley, as set forth.

2. The combination, in a belt-replacer, of a clamp-bar provided with a rigid jaw at one end and a pivoted jaw at the other, a clamplever connected with the pivoted jaw, a brace to secure the pivoted jaw in contact with the rim of the pulley, anda trip-lever for thebrace adaptedto be operated by'thebeltfasit passes entirely on the pulley for the purposeof disconnecting the replaeer from the pulley, as set 5 forth.

3. The combination, in a belt-rep1acer, of clamp-bar (1, spring 9, rigid jaw h, piv ot'ing jaw f, lever b, brace-rod i, stop Z, and trip-1eyer a, all constructed and arranged to operate substantially as'and for the purpose set forth. r'o In testimony whereof I sign my name in the presence of two subscribing witnesses.

J AS. J. HARNSBERGER.

Attest: I I p p W. H. HARNSBERGER, WM. E. NELsoN.

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