US542702A

US542702A - Steam-engine governor

Info

Publication number: US542702A
Authority: US
Publication date: 1895-07-16
Anticipated expiration: 1912-07-16

Description

(No Model.)

C. CHRISTENSEN.

STEAM ENGINE GOVERNOR. No. 542,702. A Patented July 16,1895.

@M0/M2M Q90 W inder E, has a portion thereof in the form of stem g, an elbow-lever ideama STATES CH RSTIAN CHRISTEN SEN,

OF RACINE, WISCONSIN.

lsriiAlvl-iancinEGOVERNOR.

SPECFICATON forming part of Letters Application filed September 15, 1894. Serial No. 523.067.

Patent No. 542,702, dated July 16, 1895.

(No model.)

.To all whom t may concern:

Be it-known thatI, CHRISTIAN CHRIsTENsEN, 'a citizen of the United States, and a resident of Racine, in the county of Racine and State of Wisconsin, haveinvented certain new and useful improvements in Steam-Engine Governors; and l do hereby declare that the following is a full, clear, and exact description thereof.

My invention has for its object tol provide a simple, economical, sensitive, and efficient governor-controlled mechanism for regulating the feed of live steam to an engine; and it consists in certain peculiarities of construction and combination of parts, hereinafter set forth with reference to the accompanying drawings, and subsequently claimed.

In the drawings, Figure 1 represents a partly-sectional elevation of the mechanism embodied in my invention, and Fig. 2 altransverse sectionillustrating a governorcontrolled valve and its casing.

Referring by letter to the resents the steam-chest of an engine, B a casing open to the chest, and C a main steampipe joined to said casing. The casing is provided with guides b for a slide-valve D at a right angle to the pipe C, and the stem c of the valve extends into a cylinder E, to connect with a' piston F, a spiral spring Gr being arranged to surround the valve-stem inter` mediate of the piston and head d of the cylinder.

An elbow branch pipe H, leading from the main pipe C into the other head e of the cyldrawings, A repa casing I for a transverse rock-valve J, and the latter valve-Casin g has an exhaust-port f, from which a pipe K may extend to any convenient point of discharge.

The stem g of the valve J extends through the casing I andis provided with a wingL, having lugs 72. h' extending in opposite directions therefrom,these lugs being in opposition to stops t e" on said casing.

The valve J controls the port f and the inlet j to the casing I, this inlet being at right angles to the port aforesaid. Ahorizontal rod M works in a suitable guide N, and is provided upon its under side with a notch for L on the lvalveengagement with the wing spring G expands P, fulcrumed on a suitable support, being employed to connect the rod with the shaft Q of a governor.

In practice the movement of the rod Mdepends on that of the governor-shaft Q, communicated thereto by the lever P, and the engagement of said rod with the wing L results in an operation of the valve J in either direction, accordingly as the engine runs fast or slow.

As herein shown, the wing L is standing vertical and the valve J is operating vas a full cut-off for the exhaust-port j' of its casin g and a partial cut-off for the inlet j, through which steam from the branch pipe H is admitted to said casing to continue through the same and enter the cylinder E for the purpose of exerting pressure against the piston F sufficient to overcome the power of the spring G and effect a corresponding movement of the slidevalve D in its guides.

Should the speed of the engine accelerate, the lift of the governor-shaft will cause further movement of the rod M in thedirection of the arrow, and owing to the'engagement of the rod-notch and Wing L of the valve J the latter is rocked farther toward a complete opening of the casing-inlet j, the slide-valve in the meantime moving farther in its guides to close the main steam-pipe. By the time the inlet j is full open the lug h of the wing Lwill have come into contact with the stop t to thus permit the rod M to disengage from said wing in case of further movement in the direction of the arrow. The speed of the engine having been decreased there is enteinatic movement of the rodM in a direction reverse to that aboveset forth, and consequently the valve J is operated to open the exhaust-port f andl close the inlet j, the full reverse throw of said valve being limited by the stop t on its casing, while at the same time to cause a retraction of the main valve.

The dotted lines in Fig. 2 clearly illustrate the working of the valve J, and from the foregoing description it will be understood that the steam-regulating mechanism is very sensitive and efficient.

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

The combination of a steam-chest, a main vlo inder-head and having a portionk thereof vin the form of a casing provided with an exhaustport, a rock-va1ve in the casing controlling a i valve Wing, a governor, and a suitably supported .elbow-lever the governor shaft.

' In testimony that I claim the foregoing I have hereunto set my hand,at Racine, in t-he county of Racine and State of Wisconsin, in

connecting the rod with the presence of two witnesses.

CHRISTIAN OHRISTE SEN. `Witnessesz M. D. MORRIS, J. E. FRAMZE.