US178943A

US178943A - Improvement in speed-regulators

Info

Publication number: US178943A
Authority: US
Publication date: 1876-06-20
Anticipated expiration: 1893-06-20

Description

N.AI.I.MEEE. SPEED REGULATOR..

Patented June zo. 1876.

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v N-FETERS, PHOTO'IJTHOGRAPHER. WASHINGTON, D CV v .l TTED STATES NATHANIEL U. METZ, OF N ORRITONVILIJE, PENNSYLVANIA. l

IMPROVEMENT IN'SPEED-REGULATORS.

Specification forming part of Letters Patent No. 178,943, datedvJ une 20, 1876; application filed February 28, 1876.

To all whom it may concern:

. friction of which is made to move out brakeshoes with great force against the iiange, to arrest the motion of the shaitin case the belt runs off, or the engine or other power runs too fast for any cause.

Figure l is a section through the ange of the stationary` disk. Fig. 2 is a front elevation oi' theregulator. Fig. 3 is a sectional elevation of Fig.` 1, takenon line ww; and Fig. 4 is a section on line y y.

Similar letters of reference indicate corresponding parts. .y

A represents the disk, which revolves with the driving-shaft B. C is the flange of the stationary disk D, on which the brake-shoes E are made-to work by the. centrifugal levers F, which are pivoted to the outer ends ot' bar G, which revolves with disk A, but is free to fall back alittle, being titted loosely on the shaft and connected to the disk by the spring H. The levers are connected torock-lever I on bar'G by rods J, and the rock-lever has a spring, K, and an adjusting-stud, L, by which it is set so as to hold the levers with more orless force against their tendency to ly outward, thus adjusting them for different speeds. The centrifugal levers have a brakepad, M, which touches the flange C when the disconnected.

limit of speed `is reached, and the friction thus caused makes bar G turn back on shaft B relatively to the speed of disk, which throws out the brakes E by the rods N with great force, so that the machine cannot race, even though the whole load be instantaneously contact with the flange their friction keeps the levers out, when the motion falls below that necessary to bring them out in the first place.

The shoes E are contrived so as to slide to and from the ilanges and make the contact of the Whole of bearing-surface, and the rods N are connected to them by screwing in and out of a stud, O, to compensate for the wear on the face.

Having thus described my invention, I claim as new and desire to secure by Letters Patent- 1. In speed regulators, the bar G, having the pivoted weights at each end, connected with the revolving disk A by a spring, H, and placed loosely on shaft, as and for the purpose specified.

2. The spring K, adjusting-stud L, rocklever. I, and rods J, in combination with the' centrifugal levers F and bar G, substantially vas specin'ed.

3. 'Ihe combination of brakes E and rods N with the bar G, centrifugal levers F, stationary disk D C, and the revolving disk A, substantially as specified.

NATHANIEL U. METZ. v Witnesses:

T. B. MosuEE, ALEX. F. ROBERTS.

When the pads M come inV