US178125A - Improvement in steam-engines - Google Patents

Description

c. DUECKER.

STEAM-ENGINE. S N' .178,1Z5 I Patented May 30,1876.

WITNESSES ATTORNEY NJEIERS, PHOTO-UTHOGRAPHER, WASNKNGTON. D C- WM A UNITE STATES PATENT OFFICE.

CONRAD DUEGKER, 0F TAMAROA, ILLINOIS, ASSIGNOR OF ONE-HALF HIS RIGHT TO DEWITT (I'BARRER, or SAME PLACE.

IMPROVEMENT m STEAM-ENGINES.

Specification forming part of Letters Patent No. I 78,125, dated May 30, 1876; application filed April 29, 1876.

To all whom it may concern:

Be it known that I, CONRAD DUEGKER, of

'Tamaroa, in the county of Perryand State of clear, and exact description of the constructlon and operation of the same, reference being had to the annexed drawings, making a part of this specification, and to the letters and figures of reference marked thereon.

Figure 1 of the drawings is a representation of a top view of my improved engine, and Fig. 2 is a longitudinal vertical section thereof.

This invention has relation to improvements in steam-engines; and it consists in the arrangement and novel construction of the various devices used, whereby very important results are obtained, as will be hereinafter more fully set forth and claimed.

In the annexed drawings, the letter A designates the frame or bed of an engine. B is a fly-wheel, mounted in suitable bearings there in, and provided with the usual crank-arm O. D represents a metallic pitman, one end of which is connected in the customary manner to the said crank-arm and the other to a vertically-vibrating arm, E, of suitable length, which arm is keyed or otherwise suitably secured to a rock-shaft, F, having its bearings in upright standards G, erected on the enginefraine. H indicates a second pitman, one end of which is pivoted to a cross-head, I, reciproeating in guides J, secured upon the engineframe, so as, to have vertical vibration. The other end of pitman H is bifurcated, and is connected pivotally to pitman D, somewhat nearer its-wrist-pin connection with the crankarln than to thevibrating arm E, the said pit man having been first brought in line with the cross-head and cylinder. Even should the latter be somewhat below or above the crosshead and pitman H, the engine would still be operative. I

From the vibrating arm E the cut-off may be worked by applying link motion to the cutoff or stem-rod, thus doing away with eccentrics. The engine may also be reversed from this point; and I may, by the application of a simple crank-arm upon the rock-shaft F,

actuate a pump for supplying feed-water to the boiler, and for other purposes.

It will be evident at a glance that the crank will-be thrown down faster than upward when a fly-wheel is not used; but by its employment the up and. down motions of the said crank will be equalized, and its movements made regular.

By the employment of the subsidiary pitman D and therocking arm E, the power exercised by the cylinder is considerably increased, and the facility with which the deadcenters are passed, the-two pitmen being at different angles, greatly added to.

In practice, I may sometimes form a slot in the upper end of pitm'an, and apply therein an adjustable box or bearing. By this construction I am able to adapt my improvement to cylinders of any length.

It is evident that my improvement'may be applied to every description of engine, whether horizontal or upright, stationary or locomotive.

What I claim as new, and desire to secure by Letters Patent, is-

1. In a steam-engine, the subsidiary pitman D, pivoted to the crank-arm at one end, and at the other to a vertically-vibrating rocking arm, E, in combination with the pitman H, pivoted to pitman D, substantially as specified.

2. The subsidiary pitman- D and rocking arm E, in combination with the actuating-pitman H, cross-head I, crank G, and fly-wheel B, substantially as specified.

In testimony that I claim the above I have hereunto subscribed my name in the presence of two witnesses;

CONRAD DUEOKER. Witnesses:

CHAS. PRIcE,

H. G. WILDY.

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