US756791A - Governor for hydropneumatic engines. - Google Patents

Description

PATENTBD APR. 5, 1904.

B. A: HORNBOST-BL, JR. I GOVERNOR FOR HYDROPNEUMATIG ENGINES.

APPLIOATION FILED MAE. 27,.1903.'

N0 MODEL.

UNITED STATES Patented April 5, 1904.

ERNEST A. HORNBOSTEL, JR, OF DES MQINES, IOWA.

GOVERNOR FOR HYDROPNEUMATIC ENGINES.

SPECIFICATION forming part of Letters Patent No. 756,791, dated April 5, 1904..

Application filed March 27, 1903.

To all whom, it may concern:

Be it known that I, ERNEST A. HORNBOSTEL, J r., a citizen of the United States, residing at Des Moines, in the county of Polk and State of Iowa, have invented a new and useful Governor for Hydropneumatio Engines, of which the following is a specification.

My invention relates to thehydropneumatic engine for which United States Letters Patent No. 368,952 were granted August 30, 1887; and it consists in the construction and application of a governor with a rotatable crankshaft, arock-shaft, a piston, and a float to regulate the reciprocating motions of the piston in the cylinder and the float in the boiler, as hereinafter set forth, pointed out in my claims, and illustrated in the accompanying drawings, in which- Figure 1 is aside elevation that shows the relative positions of the different parts of the governor that are combined with each other on one of the balance-wheels. Fig. 2 isaview takenat right angles to Fig. 1 and shows the connection of the governor with the crankshaft, the rock-shaft, the piston, and the float as required for practical use. Fig. 3 is a top view showing a part of one of the balancewheels broken away. Fig. 4 is an enlarged sectional view that shows the manner of connecting an evener with the rotatable shaft and the two weighted levers of the governor.

The numeral designates the float, 11 the boiler, 12 the cylinder, and 13 the condenser that incloses the cylinder, jointly fixed on top of the base-plate 14. A plate 15 is fixed on top of the condenser and cylinder, as required to close the annular space between the cylinder and condenser and to support the operative mechanism mounted on top of them.

Bearings 16 and 17, fixed on top of the plate 15, support a crank-shaft 18, that has balancewheels 19 on its ends. A yoke 20 is pivotally connected with the crank 21 at the center of the shaft 18 and extends down into the cylinder 12, to be connected with a piston in the cylinder, but not shown.

A rock-shaft 22 is mounted in branches 23, that extend horizontally from the bearers 16 and 17, and an arm 24 extends from the center of the rock-shaft and is pivotally connect- Serial No. 149,775. (No model.)

ed with a jointed stem 25, that extends down through the cylinder and is connected with the top of the float 10, as required to reciprocate the float in the boiler 11. An arm 22% extends from the end of the rock-shaft 22 and is connected with'one end of the evener 28 by a link 23%.

Curved levers 26 and 27 are fulcrumed to spokes of one of the balance-wheels 19 to extend in reverse ways relative to each other and the axis of the wheel, and each is provided with a weight on the end of its long arm. An evener 28 is pivotally connected with the hub of the wheel 19 and the crank-shaft 18, as shown in Fig. 4, or in any suitable way in such a manner that the evener can vibrate when the shaft rotates. The short arm of each of said levers is pivotally connected with one end of the evener 28 by means of a link 29, and each lever is normally retained in position, as shown in Fig. 1, by a spring 30, fixed to the balance-wheel and to the short arm of the lever. An aperture in the center of the evener 28 admits the end of the hub of the wheel 19, and a ring plate 31, fitted and fixed against the outside face of the hub of the Wheel, aids in keeping the evener in place, as required to retain the center of motion of the evener concentric with the axis of the shaft 18.

In practical operation the long arms of the weighted levers 26 and 27 will move outward, as required to maintain a uniform Velocity of the crank-shaft 18, a regular vibratory motion of the rock-shaft 22, and steady reciprocating motions of the piston in the cylinder and the float in the boiler, as required to transmit power and motion from the engine to extraneous machinery when connected with a bandwheel 32 on the end of the shaft 18.

The main object of the invention consists in keeping the piston and the float from varying in motion relative to each other-in other words, one going faster than the other in the varying speed of the engine. The action of the governor is direct and simultaneous upon the piston and the float and uniform in speed, regardless of the speed of the engine.

Having thus described the purpose, construction, application, and operation of my invention, its practical utility will be readily understood by persons familiar with the art to which it pertains.

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

1. In a hydropneumatic engine containing a reciprocating piston and also a reciprocating float, a rotatable crank-shaft, a balancewheel on one end portion of the shaft, two levers fulcrumed to the balance-wheel to project in reverse ways relative to each other and the axis of the shaft, weights on the ends of the long arms of the levers, an evener pivotally connected with the hub of the balancewheel to vibrate concentrically with the axis of the shaft, links connecting the ends of the evener with the short arms of the levers and means for'normally retaining the weights on the ends of the long arms of the levers at the central portion of the Wheel, a rock-shaft in parallel position with the crank-shaft, an arm extended from the end of the rock-shaft, a link pivotally connected with said arm and with one end of said evener, an arm at the center of the rock-shaft and a stem pivotally connected with said arm and with the float, arranged and combined to operate in the manner set forth for the purposes stated.

2. In a hydropneumatic engine containing a reciprocating piston and also a reciprocating float, a governor comprising a wheel on the end of a rotatable shaft having a crank at its center, an evener pivotally connected with the hub of the wheel to rotate concentrically with the shaft upon which the wheel is mounted, two levers provided with weights on the ends of their long arms fulcrumed to the wheel, links connecting the short arms of the levers with the ends of the evener, springs connected with the wheel and the short arms of the levers, a rock-shaft in parallel position with the rotatable shaft, a yoke pivotally connected with the crank of the rotatable shaft and a piston in a cylinder, an arm on the rockshaft, a link connecting the said arm with one end of said evener and an arm at the center of the rock-shaft pivotally connected with the float by means of a stem, arranged and combined to operate in the manner set forth for the purposes stated.

3. A hydropneumatic engine comprising a cylinder, a piston in the cylinder, a rotatable crank-shaft, connected with the piston, a boiler connected with the cylinder, a float inthe boiler, a balance-wheel on one end portion of the shaft, two levers fulcrumed to the balance-Wheel to project in reverse Ways relative to each other and the axis of the shaft, weights on the ends of the long arms of the levers, an evener pivotally connected with the hub of the wheel to vibrate concentrically with the axis of the shaft, links connecting the ends of the evener with the short arms of the levers and means for normally retaining the weights on the ends of the long arms of the levers at the central portion of the wheel, a rock-shaft inparallel position with the crank-shaft, an arm extended from the end of the rock-shaft, a link pivotally connected with said arm and with one end of said evener, an arm at the center of the rock-shaft and a stern pivotally connected with said arm and with the float, arranged and combined to operate in the manner set forth for the purposes stated.

ERNEST A. HORNBOSTEL, JR.

Witnesses:

K. K. KEFFER, THoMAs Gr. ORWIG.

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