US228772A

US228772A - michener

Info

Publication number: US228772A
Authority: US
Publication date: 1880-06-15
Anticipated expiration: 1897-06-15

Description

W. B.. MICHBNER.. Steam#Governor.

No. 228,772. Patenied'lune 15, 188140.

NJ'HERS. PMOT0-LITHOGRAPHER. WASHINGTON. D. C.

NITED STATES @PATENT Erica WILLIAM R. MICHENER, F OSWEGO, ASSIGNOR TO ARTHUR L. MERRIAN, vOF NEW YORK, N. Y.

STEAM-GOVERNOR.

SPECIFICATION forming part of Letters Patent No. 228,772, dated June 15, 1880.

Application filed June 30, 1879.

To all whom 'it may conoci-n:

Be it known that I, WILLIAM R. MICHENER, of the city of Oswego, in the county ot 0swego, State ot' New York, have invented a new and useful Improvement in Steam-Governors, of which the following is a specification, rei'erencebeing had to the accompanying drawings, forming part of the same.

This invention relates to the class of steamgovernors designated centrifugal governors 5 and it consists in a peculiar construction and combination of a cut-off'or governor-valve actuated by the centrifugally-vibratory governorarms, and arranged to intercept the passage r 5 of steam throughthe steam-pipe when the governor is at rest, and havin ga separate circumjacent steam-passage communicating directly with the steam-pipe and with the exit of the cut-off valve, and provided with a hand-throttle or stop-cock at the latter, by which arrangement the tlow of steam to the cylinder of the engine is effectually controlled by the velocity of the engine and completely cut ott in case of slipping or accidental disconnection of the governor-belt. I

The invention also consists in a peculiar connection of the vibratory governor-arms with the spindle ot' the governor, whereby the same is greatly relieved of friction and easily maintained in proper working order.

In the accompanying drawings, Figures 1 and 2 are elevations of my invention as seen from sides at right angles to each other, and shown partly in section to more fullyillustrate its detail construction. Fig. 3 is a transverse section through x, and Fig. et a transverse section through y y. A

Similar letters of reference indicate corresponding parts.

A represents a hollow globe, provided on one side with the inlet B, adapted to be oonnected to the steam-pipe. Through the base of the globe is a vertical passage, C, designed to communicate with the steam-chest of the cylinder. The top of the globe is provided with the usual seat F,upon which the governor is mounted. Vertically through the center of the globe is a hollow cylinder, c, joined at its ends to the shell of the globe, and forming around the said cylinder a circumjacent steampassage, a, which communicates with the inlet B.

The cylinder c has its interior in range and direct communication with the passage G through the base ot' the globe, and is provided 55 in its sides with a series of horizontal slots or ports, c e e e, by which the interior of said cylinder communicates with the circumjacent steam passage a. Within the cylinder c is fitted ahollow cylindrical valve, el, having its 6o lower end communicating with the passage C. The sides o't' the valve d are provided with a series of perforations, b, which arc arranged in rows horizontally around the valve and in such relative positions that some ofthe perf'orations b will be nearer in coincidence with the ports e than others,'thereby rendering the opening of said valve more gradual andthe action of same more sensitive.

The valve d is connected to the spindle s 7o ofthe governor, and has sufficient vertical play in the seat c to allow the several rows of perforations of the valve to pass both above and below the respective ports e c e c in the seat and be covered by the solid parts of the latter. The. spindle s, being connected with the pivoted governor-arms m, causes the valve d to be drawn upward when the governor is at rest, and the balls are collapsed or dropped. This brings the perforations ofthe valve al be- 8o hind the solid portions above the respective ports of the seat c, and thus closes the valve.

Below the vaive-seat lis a port by which the circumjacent passage a communicates with the exit C. By means of a valve, j, seated upon the aforesaid port and having a suitable handle, h, for manipulation, the port can be opened or closed at will. By opening the valve f the steam which, by the before-described position of the governor-valve d, is in- 9o tercepted in its lpassage and detained in the circumjacent passage a is allowed to pass from the latter to the exit C and on to the cylinder of the engine, thereby setting the engine in motion. So soon as the engine has acquired sufficient velocity to actuate the governor the centrifugal force exert-ed upon the pivoted levers fm ofthe governor causes tlie'latter to depress the spindle s, thereby forcing the valve d downward and opening the ports of roo same. The valve f may then be closed, the flow of steam being` thereafter controlled by the governor-valve d. The valve d, having its range of motion extended to carry its perforations below the ports of the seat c, causes the steam to be cut oft' in the ratio of the increase of velocity of the engine and the resultant distention of the governor-arms and depression of the spindle s. l

The weighted levers m of the governor are pivoted to the standard H at opposite sides of the spindle s, and have their respective inner ends provided with a female threaded sleeve or hollow arm, n, standing at right angles to the levers m and diametrically opposite the axis of the spindle s.

From the outer end of the sleeve u is inserted a screw, r, having a blank inner eX- treinity, 1", protruding from the inner face of said sleeve and forming a trunnion, on which is iitted a hard-wood block, e, which slides between rigid collars u u on the spindle s and serves as an anti-friction bearing for the connection of the governor-arms with the spindle.

NVhat I claim as my invention, and desire to secure by Letters Patent, is-

1. The combination and arrangement, with the steam-pipe of an engine, of a centrifugal governor having connected with its vibratory arms a valve arranged to intercept the passage of the steam through said pipe when the governor is at rest, and provided with a circumjacent steam-passage communicating at one end direct with the steam-pipe, and at the opposite end with the exit of the governorvalve through a valve operated at will, substantially as set forth and shown.

2. The supplemental valve f, in combination with the globe A, having the slotted cylinder c and circumjacent passage a in direct communication with the inlet B, and the perforated governor-valve d, communicating diyrect with the exit C, constructed, arranged,

and operating substantially in the manner specified and shown.

3. The combination and arrangement, with the cylindrical valve-seat c, provided with the slots or ports c e c e, circumferential steampassages a, inlet B, and exit C, of the hollow cylindrical valve d, connected with the Ispindle s, and having rows ofperforations arranged in such relative positions that when the governor is at rest'or disconnected from the actuating mechanism of the engine said perforations will be closed by the solid parts of the cylinder valve seat c and a supplemental valve or stop-cock interposed between the steam-passage a and exit C, substantially as described and shown.

4. In combination with the pivoted weighted levers m, having arms n, provided with screws i, the stein s, provided with the collars u, and the wooden blocks c, substantially in the manner and for the purpose shown and set forth.

5. The combination of the vibratory levers m, provided with the female-threaded tubular arms n, the screws r, having the blank extremity r', the wooden slides c, and the spindle s, provided with rigid collars u u, all constructed and combined substantially as described and shown.

NV. R. MICHENER. Witnesses.

L. AMES, T. E. HOPKINS.