US425118A

US425118A - Arnold willmer

Info

Publication number: US425118A
Authority: US
Publication date: 1890-04-08
Anticipated expiration: 1907-04-08

Description

(No Moae1.

A. WILLMEE. AUTOMATIC GOVERNOR FOR POWER ENGINES. No. 425,118. Patented Apr. 8. 18907.

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UNITED STATES Q PATENT OFFICE.

' ARNOLD VVILLMER, OF HANOVER, PRUSSIA, GERMANY, ASSIGNOR TO THE KORTING GAS ENGINE COMPANY, (LIMITEDQ OF NEIY YORK, N. Y.

AUTONITIC GOVERNOR FOR POWER-ENGINES.

.SPECIFICATION forming part of Letters Patent No. 425,118, dated April 8, 1890.

Application filed March 28, 1889. Serial No. 305,118. (No model.) Patented in France May 14, 1888, No. 196,289, and in Switzerland May 14, 1888, No. 864.

l .To all whom, it may concern:

Be it known that I, ARNOLD \VILLMER, a subject of the King of Prussia, residing at Hanover, in the Kingdom of Prussia, Ger- 5 many, have invented certain new and rseful Improvements in Automatic Governors for Power-Engines, (for which I have obtained Letters Patent in France, numbered 196,289, and a patent in Switzerland, numbered S64, dated May 14,1888 and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention consists in the automatic governor for power-engines, hereinafter to be described and claimed.

In the drawings, Figure 1 is a front view of my improved governor as applied to the valve-gear. Fig. 2 is a side view of the same.

Like reference-letters refer to like parts throughout the drawings.

A is the crank-shaft of an engine.

B is the crank which operates the valvegear.

O is the connecting-rod, composed of two parts-a main part and a sliding part R. This part R slides in or upon the main part of the connecting-rod in the direction of the length of the same.

The exhaust-valve E of the engine is operated by suitable connections leading to the lever F G, which is pivoted on the standard S. This lever is controlled by a spring O, and is connected to the sliding part R of the connecting-rod. Consequently the valve E will be opened by the downward thrust of the connecting-rod, and closed by the spring O during the upward stroke of the connectingrod. A pivoted catch I has a projection N, which engages with a lip M on the arm G of vthe lever F G and holds the valve E open. This is possible, because the sliding part R then plays freely within the connecting-rod 45 C, and no motion is given to the lever F G.

A weight P on the pivoted catch I, however,

tends to keep the lip N ont of engagement with the projection M.

A weight T is mounted on a slide on the VIO connecting-rod and supported by a springv D. 5o A rod H transmits the motion vof the sliding weight T to the arm X of the bell-crank, to which the finger L is attached. The finger L, with its bell-crank, is mounted in a lug V on the main part O of the connecting-rod. The counter-weight Y balances the weight of the rod H, and the arm X, so that the equilibrium of the finger L is not materially affected by the oscillations of the connectingrod on which it is mounted.

The operation of my governor is as follows: Then running at normal speed, the lip N is kept out of engagement with the projection M, and the exhaust-valve is opened and closed at every stroke of the connecting-rod. When the normal speed is exceeded, however, the momentum of the weight Tl overpowers the spring D at the end of the downstroke of the connecting-rod, and the linger L is forced to the right, thereby holding the pivoted catch K I up, so that the lip N engages the proj ection M, and the valve E is not closed at all during that stroke. If by the next downstroke the finger L has been withdrawn through the slowing down of the engine, the projection M will be released from any pressure of the lip N atthe limit of the connecting-rods stroke, the parts being adj usted to produce this effect, the weight P will act to swing the catch K I back ont of engagement with the projection M, and the valve E will be closed by action of the spring O.

It is evident that various changes mightbe made in the mechanical details of construction without departing from the spirit of my invention. Thus the crank and connectingrod might be replaced by an eccentric and eccentric rod. The oscillating lever F G might be replaced by a reciprocating piece sliding in guides on the standard S. The apparatus here described might be applied to the inlet-valve instead of the exhaust-valve, as here illustrated, the. This follows evidentljT from the fact that the governing action of the apparatus described depends on the distance of the end of the finger L from the end of the connecting-rod R, which distance automatically varies, according to the speed at which the connecting-rod is reciprocated. This finger, therefore, might operate upon the inlet-valve, or upon the exhaustvalve, as stated, or upon any of the numerous valve-controlling apparatuses, or upon a telltale device, which would indicate the speed at which the engine was running.

Having therefore described my invention. what I claim as new, and desire to protect by Letters Patent, is-

l. In an automatic governor for power-engnes, the combination of the connectingrod made in two parts, so that one part may slide over the other, the spring-pressed valve-operating lever connected to the sliding portion of the connecting-rod, the spring-supported weight sliding on the main part of the connecting-rod, the catch, which may retain the valve-operating lever, but which is normally disengaged therefrom, and the finger for forcing the catch int-o engagement with the valveoperating lever, which finger is mounted on the main part of the connecting-rod and com trolled by the spri11g-supported weight, substantially as described.

2. In an automatic governor for power-engines, the combination of the connecting-rod made in two parts, so that one part may slide over the other, the spring-pressed lever connected to the sliding portion of the connecting-rod, the catch, which may retain the Said lever in opposition to the action of its spring, but which is normally disengaged therefrom, and the finger for forcing the catch into engagement with the lever, together with a centrifugal governor for oper ating the finger, substantially as described.

3. In an automatic governor for power-engines, the combination of the connectingrod, the weight sliding on the connecting-rod7 the spring, and the finger, which is pivoted on the connecting-rod and moved by the weight, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

ARNGLD TILL-MER.

Witnesses:

WM. G. srALmNo, Jol-IN KRACKE.