US472598A - Gaerick m - Google Patents

Description

UNITED STATES GARRIOK M. ATHERTON,

PATENT OFFICE.4

OF LONGTON, KANSAS, ASSIGNOR OF ONE-HALF TO FRANKLIN A. DU BOIS.

SPEED-CONTROLLER.

SPECIFICATION forming part of Letters Patent No. 472,598, dated April 12, 1892.

Application filed October 8, 189C1. Serial No. A071632. (No model.)

To a/ZZ whom it may concern,.-

Be it known that I, GARRICK M. ATHEETON, a citizen of Longton, in the county of Elk and State of Kansas,have invented certain newand useful Improvements in Speed- Controllers; and I do hereby declare the following to be a full, clear, and exact description of the inven tion, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to an improvement in devices for controlling the speed of revoluble shafts, the object of the invention being to produce a speed-regulator whereby the speed of a revoluble shaft and the mechanism connected therewith Will be effectually regulated and said mechanism made to run at a uniform speed.

With this object in View the invention consists incertain novel features of construction and combinations and arrangements of parts, as hereinafter set forth, and pointed out in the claims.

In the accompanying; drawings, Figure l is an end view showing the application of my improved speed-regulator to a hoisting mechanism; and Fig. 2 is a side view of the mechanism,'showing the regulator in section.

A represents the frame of a windlass, said windlass being provided with gearing adapted to rotate a shaft B, with which my improved regulator or controller is connected. It is evident that myimprovements are applicable to numerous classes .of machinery, and is here shown as applied to awindlass for convenience of illustration. Secured to one of the uprights of the frame A is a plate C, having a laterally-projecting annular flange a, said plate being also made with a central perforation for the passage of one end of the shaft B. Secured to the end of the shaft B is a crossbar C, having recesses at each end for thereception of one end of two curved bars D D, which latter are pivotally connected to the ends of said cross-bar C. The free end of each curved bar D is provided with a weight E. Each weight E may be made of a block of brass or other metal and provided with a notch b to receive the bar D. A screw c passes through the block and preferably through a recess in the bar D,said screw also passing through a nut d, inserted in the end of the block or weight E. By this means the block or weight E may be secured to the bars D.

Mounted on each bar D is a collar G, to which a friction-shoe H is secured. The collars G are each provided with a perforation for the reception of a set-screw f, said setscrew also passing through a perforation g in the bar D. Each bar D is preferably provided With a series of perforations g, whereby the shoes II maybe adjusted nearer to or farther from the free ends of said bars D. It

will be seen from the above-described con-- struction that when the shaft B revolves the friction-shoes H will be made to engage the flange a of the plate O by the centrifugal action of the bars D, and that by adjusting the shoes nearer to or farther from the free ends of said bars the frictional pressure which they exert on the flange a will be increased or diminished. The operating parts of the device may be protected bya cover placed on the flange a.. Springs i are secured at one end to the cross-bar O near the ends of said cross-bar and adapted at their free ends to bear on the pivoted ends of the curved bars D, and thus prevent the engagement of the shoes I-I with the flange a when the device is not in use.

By the use of adevice constructed as above set forth the speed of the machinery to which it is'attached may be regulated and made to run at a uniform speed.

Having fully described my invention, what I claim as new, and desire to secure by Letters Patent, is-

l. In a speed-controller, the combination, with a flanged plate and a shaft, of a crossbar on one end of said shaft, springs, a bar pivotally connected at one end to the end of said cross-bar, aweight at the end of said pivoted bar, and an adjustable shoe carried by said pivoted bar and adaptedsto engage the flange of said plate, substantially as set forth.

2. In a speed-controller, the combination, with a flanged plate and a shaft, of a crossbar on one end of said shaft, springs, curved bars pivoted at each end of said cross-bar and extending in opposite directions, a weight at the free end of each curved bar, and a shoe IOO said block, and a nut in the bleek in which the serew enters, whereby the bleek or Weight may be clamped to the bar, substantially as set forth.

In testimony whereof I have signed this specification in the presence of two subscribing Witnesses.

AGARRICK M. ATIIERTON.

Witnesses:

G. L. RULE, F. M. ROGERS.

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