US1016543A - Governor for gas or other engines. - Google Patents

Description

J. F. BRIDGES. GOVERNOR FOR GAS OR OTHER ENGINES. APPLICATION TILED 11110. 1907. RENEWED AUG124, 1911. 1,01 6,543.

-' Patented Feb. 6, 1912.

IN VENTOR; j 7. W

ATTORNEY.

1 Anni-V mm WI TNESSES:

COLUMBIA PLANOGRAPH 0.. WASHINGTON. uv c.

JOHN F. BRIDGES, OF ALAMEDA, CALIFORNIA.

GOVERNOR FOR GAS OR OTHER ENGINES.

Specification of Letters Patent.

Patented Feb. 6, 1912.

Application filed December 3, 1907, Serial No. 4Q4,906. Renewed August 24, 1911. Serial No. 645,722.

To all whom it may concern:

Be it known that I, JOHN F. BRIDGES, a citizen of the United States, residing at Alameda, in the county of Alameda and State of California, have invented new and useful Improvements in Governors for Gas or other Engines, of which the following is a specification.

This invention relates to governors for engines such as gas engines, the object of the invention being to provide a governor which will control the speed of the engine, not by the speed itself, as is usual, but by means of the load.

In the accompanying drawing, Figure 1 is a broken side view of the governor; Fig..

2 is a longitudinal section of the same, certain parts being shown in side elevation; Fig. 3 is a broken view of a side of the governor opposite to that shown in Fig. 1.

Referring to the drawing, 1 indicates the shaft of the engine, upon which is fixedly mounted the hub 2 of a disk 3 formed at its edge into a heavy rim 4, which rim constitutes a fly wheel.

5 indicates a wheel having a flange 6 which runs loose upon the hub 2, also having spokes 7 and a rim 8, which latter surrounds the rim 4. Said rim 8 can thus serve as a pulley, so that it can drive a belt, shown at 9, and carry the load. However, any other means may be used for carrying the load by means of the wheel 5. Extending from said wheel 5 laterally, or in an axial direction, at each of two diametrically opposite points thereof, is a bearing 10 for a shaft 11, which has secured thereto, on the outer side of said wheel, an arm 12 the other end of which is pivotally attached to a rod 13, which slides through a guide 14, and around said rod is a spring 15, compressed between the end of the arm 12 and the guide 14, so that it normally presses said arm away from said guide. Upon the other end of said shaft 11, on the inner side of said wheel 5, and in a recess 16 formed in the inner side of the rim 4, is secured a cam finger 17, which is pressed by said spring 15 against the short arm 18 of a governor lever 19. Each governor lever is pivoted upon a stud shaft 20, screwed, as shown at 21, into the side of the disk 3, and additionally secured by a set screw 22 screwed into an inward extension 4 of the rim 4. Thb long arms 23 of said levers carry weights 24, and the outer end of each long arm is attached by means of a spring 25 to a mediate portion of the long arm of the other lever. Each lever is also connected by a link 26 with a sleeve 27, on the hub 2 of the disk 3 and connected thereto by a pin 28 and oblique slot 30, so that when said sleeve 27 is turned it also moves longitudinally and varies the amount of gas supplied. This movement of the sleeve to control the supply of gas is old and in common use. An apparatus for so controlling the supply of gas is shown diagrammatically in Fig. 2 and consists of a stem 35 having a double finger adapted to engage the flange 37 and sliding through a bearing 38, carrying at its outer end a slide valve 36 which moves across the pipe 37 for conducting the supply of gas. A block 31 is pressed by a spring 32, in the recess 16, against the cam finger, and holds it up to the short arm 18 of the governor lever.

By the above construction the speed of the engine is governed by means of the load. Thus, supposing that an increased load is thrown upon the pulley 8, this will cause the rim 8 to drag relatively to the fly wheel 4, producing a relative movement of said rim in the opposite to its running direction. The cam finger 17 will thereby press harder against the short arm 18 thereby turning the cam finger against the pressure of the spring 15 so that the pressure of said finger is exerted at a shorter distance than before from the pivot of the lever 19. The effect of this is to give the weight 24 an advantage, so that said weight can swing farther outward than before. The outward movement of the weight moves the link 26 and thereby turns the sleeve 27, so as to admit more gas. The contrary effect takes place when the load is diminished. Thus the supply of gas is controlled by the variations in the load.

The two wheels are held together against relatively axial movement, while permitting of suflicient circumferential movement, by bolts 33 in the wheel 5 which passes through slots 34 in the disk 3.

I claim 1. In combination, a shaft, a fly wheel thereon, means for controlling the transference of energy, a driven wheel loose on the shaft and adapted to transmit power to a load, a lever carried by the fly wheel, a weight on the end of said lever, a cam finger carried by the driven wheel, and engaging an arm of said lever, a spring arranged to press said cam finger against said arm to oppose the outward movement of the weight due to centrifugal force, and a connection from said lever to said controlling means, whereby the inward or outward movement of said lever correspondingly moves said controlling means, substantially as described.

2. In combination, a shaft, a fly wheel thereon, means for controlling the transference of energy, a driven wheel loose on the shaft and adapted to transmit power to a load, a pair of governor levers pivoted upon said fly wheel, weights on said levers, cam fingers engaging short arms of said levers, and pivotally mounted on said driven wheel, means for pressing said cam fingers against said short arms, and connections from said levers to said controlling means to operate the latter by the movement of the former, substantially as described.

3. In combination, a shaft, a fly wheel thereon, means for controlling the transference of energy, a driven wheel loose on the shaft and adapted to transmit power to a load, having a flange coaxial with the fly wheel, weights movable to and from the axis of the fly wheel, an operative connection between said fly wheel and driven wheel, whereby the axial distance of said weights varies with the relative angular position of the driven wheel and fly wheel, and an operative connection between said weights and controlling means whereby the latter is op erated by the movement of the former to and from said aXis, substantially as described.

4. In combination, a shaft, a fly wheel thereon, diametrically opposite recesses therein, means for controlling the transference of energy, a driven wheel loose on the shaft and adapted to transmit power to a load, cam shafts pivoted on said driven wheel, and cam fingers thereon in said recesses, governor levers pivoted upon said flywheel having short arms in said recesses engaged by said cam fingers, said cam shafts also having arms extending therefrom, springs op erating to move said arms, and operative connections between said governor levers and said controlling means, substantially as described.

5. Means for regulating automatically with the load on a motor the supply of motor-operating fluid to said motor, comprising a shaft, a device for varying the amountof operating fluid supplied to said motor, a lever-support secured to the shaft, a lever pivoted on said support, an operative connection between said lever and device, a weight on an end of said lever, a rotor having an operative connection with the motor load, a device movably carried by said rotor and engaging an arm of said lever, and a spring pressing said device against said arm in a direction opposite to that of the centrifugal movement of the weighted end of the lever from the shaft, the surface of the device contacting with said arm being conveXly curved.

In testimony whereof I have hereunto set my hand in the presence of two subscribing witnesses.

JOHN F. BRIDGES.

Witnesses FRANCIS M. WRIGHT, D. B. RICHARDS.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents, Washington, D. G.

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