US530704A - Governor - Google Patents

Description

(No Model.) 2 Sheets -Sheet 1.

A 1). MOORE. eqvmmon.

No. 530,704. Patented Dec. 11, 1894.

(No Model.)

' 2 Shets-Shet 2. A. D. MOORE.

GOVERNOR.

Patented De c. 1151894;

UNITED STATES:

PATEN OFFIC ALLEN D. MOORE, OF MONT PELI ER, VERMONT.

SPECIFICATION forming part-{of Letters Patent No. 530,704, dated December 1 1, 1894.

. Application filed August 4, 1892.,

.To all whom it may concern:

Be it known that I, ALLEN D. MOORE, acitizen of the United States, residing at Montpelier, in the county of Washington and State of Vermont, have invented a new and useful Improvement in aGovernor, of which the following is a specification, accompanied by drawings representing a governor embodying myinvention and forming a part of this specification.

The governor shown in the accompanying drawings is represented as applied to the valves of a water-motor, but it can be used in connection with movable valves of various classes, whether such valves are used to control the flow of water, or steam, or for other purposes.

In the accompanying drawings:-Figure 1 is atop view of myimproved governor applied to a pair of valves by which water is admitted to the bucket wheel of a water-motor, the inclosing shell, or case, of the water-motor and the belt pulley upon the water-motor shaft being shown in central sectional view, in order to disclose more clearly the operating parts. Fig. 2 is a top view of'that portion of the operating part of the mechanism which is intermediate between the rod connecting the two valves and a sliding collar, actuated by the centrifugal force of the weights carried upon blade springs attached to the rotating pulley. Fig. 3 is a side view of the governor, the pulley E having been turned one quarter of arevolution from its position as shown in Fig. 1 and represented in central sectional view upon the same plane as the section shown in Fig. 1. Fig. 4. shows an end view of the sliding collar and the operative mechanism intermediate between the sliding collar and the rod connecting the valve, the shaft being shown in section, and Fig. 5 represents a perspective view of the yoke 'G.

Similar letters refer to similar parts in the different figures.

Referring to the accompanying drawings, A denotes the shell, or case of the water-motor, B the bucket wheel inclosed therein and attached to the shaft 0, journaled in the bearings O and G which are supported by the frame-work of the machine.

The valves to which my improved governor Serial No. 442,137. on model.)

is represented as applied, consist of the rocking cylinders D, D, inolosed in the tubes D,

D, to which water under pressure is admitted and which form the water chambers. The

valve cylinders D are provided with openings Valve stems D, D are carried outside the v inclosing shellor case of the motor, through stufi'ing boxes D D and to the endsot the valve stems are attached the radial arms D which are connected by the connecting rod D The above described arrangement of valves forms no part of my present invention, those features of the valve mechanism shown in the accompanying drawings'which are novel, having been made the subject of a separate application for Letters Patent. v7

. Attached to the shaft 0 is a belt pulley E having a rim E,a hub E and a web E Sliding upon the hub E but connected therewith by a spline F. is a ring or collar F.

The web E is provided with holes or openings E to allow the radial movement of blade springs F and F which are attached, respectively, to the sliding collar F and to the inner surface of the rim E.

The blade springs F and F are arranged 'in pairs with their free ends united and to their cunited ends are looselyattache'd the weighted washers F", F by bolts F The sliding ring or collar F is provided with an annular groove, in which is held a strap F made in halves similar to the strap of an eccentric and from each half project the studs F which pass through holes in the arms G, G of the yoke G.

The yoke G is provided with gudgeons G which are held in brackets G attached, in the mechanism shown, to the shell or case A, but which can be held by any supporting framework. 4

From the body of the yoke G and at right angles to the arms G, G, is an arm G exarm Gand with its opposite end connected to a screw threaded bolt G held in a bracket G attached to the shell A and provided with a thumb nut G The weighted washers F are carried from the position shown in Fig. 3 to the position shown by the broken lines H in Fig. 3 by the centrifugal force produced by the rotation of the shaft 0 and pulley E, causing the longer blade springs F to straighten, while the shorter blade springs F serve as connecting links to draw the sliding ring, or collar along the hub E of the pulley E and into the position indicated by the broken line H, Fig. 3 and this sliding movement of the collar F causes the yoke G to be rocked upon the gudgeons G imparting an angular motion to the arm G and a longitudinal movement of the valve connecting rod D and producing the simultaneous rocking motion of the valve cylinders D, D, tending to close the ports D D The rocking motion of the yoke G upon its gudgeons G as already described, is effected against the tension of the spring G which resists the centrifugal force applied to carry the weighted disks F F outward. Therefore it will be obvious that the speed required to produce a given radial movement of the weighted disks F can be varied by increasing or decreasing the tension of the spring G which can readily be accomplished by means of the screw threaded bolt G7 and thumb nut G allowing the action of the valve cylinders D, D, to be controlled and the ports D D to be closed bya pre-determined rate of speed of the shaft 0.

The operative mechanism constituting the governor proper can readily be applied to a single valve as well as to two valvt s intended to work simultaneously, or to a sliding instead of an oscillating valve.

I am aware that governors actuated by the centrifugal force applied to weights carried by revolving pulleys and acting against the tension of a spring are not new, and I do not herein claim such broadly.

Instead of the belt pulley E, radial arms can project from the shaft 0, to which the springs F can be attached and the sliding ring or collar F can slide directly on the shaft 0, as

well as upon the hub of the pulley as shown,

the operation being the same in either case and I do not therefore confine myself to the employment of a pulley for the purpose of carrying the springs F What I claim as my invention, and desire to secure by Letters Patent, is-

1. The combination of a revolving shaft 0 and a pulley carried by said shaft, of a collar capable of sliding on said shaft, but having a spline connection therewith, a spring F attached at one end to said sliding collar and a weight attached to its opposite end, said spring being arranged with its weighted end nearer the axis of said revolving shaft than its attached end, a blade spring F connecting the weighted end of said spring F with said pulley, whereby the centrifugal force applied to the weighted end of said spring by the rotation of said shaft will carry said weighted end away from the axis of the shaft and slide said collar, a pivoted yoke G engaging said sliding collar, an arm G extending from said yoke, a rocking valve having aradial arm D and a link connecting said radial arm D with said arm G substantially as described.

2. The combination with a valve and a re volving shaft, of a ring or collar rotated with said shaft; but capable of sliding thereon, a pulley attached to said shaft and inclosing said slidingring, a blade spring having one end attached to said ring, a weight attached to the opposite end of said spring, said spring being curved so as to bring its weighted end nearest the axis of said shaft and a blade spring connecting the free end of said weighted spring With said pulley, so that when said curved spring is straightened, it will cause said sliding ring to move lengthwise said shaft and a pivoted yoke engaging said sliding ring, said yoke being operatively connected with said valve, substantially as described.

Dated the 28th day of July, 1892.

ALLEN D. MOORE.

Witnesses:

CLINTON N. FIELD, WILLMARTH A. DREW.

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