US1074495A - Controlling mechanism. - Google Patents

Description

R. DAVIS. CONTROLLING MECHANISM.

APPLIOATION FILED SEPT.27, 1912. 41,074,495. Pat nted Sept.-30,1913.

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LUMBIA PLANOGRANL 60-. WASHINGTON, D. c.

R. DAVIS. CONTROLLING MECHANISM. APPLICATION FILED SEPT. 27, 1912.

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Patented Sept. 30, 1913.

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CONTROLLING MECHANISM.

Specification of Letters Patent.

Application filed September 27, 1912.

Patented Sept. 30, 1913.

Serial No. 722.724.

To all whom 2'25 may concern:

Be it known that I, Ber DAVIS, a citizen of the United States, residing at Lehigh, in the county ofvVebster and State of Iowa, have invented new and useful Improvements in Controlling Mechanism, of which the following is a specification.

This invention relates to controlling mechanism forinternal combustion engines and one of the principal objects of the invention is to provide a simple and eiiicient mechanism whereby the action of the governors may be controlled to regulate the operation of the make and brake without adj ustment of the ball springs of the governor.

Further objects of this. invention will appear as the following specific description is read in connection with the accompanying drawings which form a part of this application, and in which Figure 1 is a front elevation. Fig. 2 is a detail horizontal section taken on the line 2-2 of Fig. 1. Fig. 3 is a vertical section taken on the line 33 of Fig. 1. Fig. 4 is a horizontal section taken on the line 14.= of Fig. 1. Fig. 5 is a perspective view of the operating crank rod.

Referring more particularly to the drawing 1 represents the base of an ordinary internal combustion engine from which projects the crank shaft 2 intergeared as shown with the counter or governor shaft 3 as shown. Slidably mounted upon the governor shaft as usual is a sleeve 4 adapted to be operated by the inner leg 5 of the pivoted weights 6. These weights are connected together on opposite sides of the shaft by adjustable springs '7 and the sleeve is arranged in the path of a lever 8 pivoted upon a lateral projection 9 of the engine base.

Secured to the base is a mounting plate 10 having pivoted to operate thereover a lever 11 which is locked in adjusted position by means of a spring pressed dog 12 which engages the notches 18 formed in the plate. Connectedto the lever 11 intermediate its ends is a pivoted link 1 1 connected to a clevis 15 which is slidably mounted over the operating or adjusting rod 16 and has a roller 17 arranged therein to bear against said rod. This rod has a right-angular extension 18 which is journaled in an ear 19 formed on the plate 10 and also in an ear 20 formed on the engine base. Intermediate the ear 19 and the ear 20 the extension 18 is provided with a crank 21 which is connected to the lever 8 by means of a link 22. The lower end of the lever 11 is formed into a tooth-segment 23 which engages a similar segment 24: formed on the lower end of a plate 25 also pivoted to the plate 10 and connected tothe lever 8 by means of the link 26. The plate 25 is connected to the clevis by means of an extended car 27 and a helical spring 28 so that when the lever 11 is moved toward the left the clevis is drawn over the lever 16 and the segment 23 meshing with the segment 24 causes the rotation of the plate 25 in an opposite direction to the movementof the lever, thus the spring 28 is tensioned and the clevis pulled downwardly upon the lever 16 so as to draw the lower end of the lever 8 toward the engine base through the action of the crank 21 and the link 22. The upper end of the lever B presses against the slidably mounted sleeve t and interposes an additional resistance to the action of the governor balls which permits the engine to speed up considerably before the lever 8 is carried out of the path of the trigger as will be readily understood.

The only portion of the make and brake mechanism shown herein is the lever 8 as the remainder of the mechanism forms no part of this invention and may be of any desired or preferred type or the lever 8 may be used to control the opening of theexhaust valve or the opening of the inlet valve. It is extremely common to control engines of this type in all three ways, either by omitting a spark, or opening or closing the inlet or exhaust valve.-

In this type of engine and governor the make and brake controlling lever is usually at its lower end connected to the engine by means of a helical spring which is non-adjustable and therefore the lever was drawn out of the path of the trigger at a time when the engine acquires a certain speed which could not be increased or diminished except by the springs 7 WVith this device the springs 7 may be set to the required tension and the spring controlling the lower end of the lever 8 dispensed with while the tension of the spring 28 may be conveniently adjusted by operation of the lever 11.

7 What is claimed is 1. The combination with a hydrocarbon engine, having a spring controlled governor and a speed controlling lever operated by the governor, of a lever operatively connected to the first-named lever, a spring for operating the second-named lever, and

means for moving the spring over the second-named lever away from the fulcrum point and simultaneously increasing the tension thereof.

2. The combination with a hydrocarbon engine having a spring controlled governor and a speed controlling lever operated thereby, of a lever operatively connected to said first named lever, a spring for operating said second named lever, and means for moving the connection of said spring with the second lever so as to increase or decrease the tension of the spring and the distance of the connection from the fulcrum point of the lever.

3. The combination with a hydrocarbon engine having a governor controlled lever, of a second lever operatively connected at one end to the first lever, a spring connected to the second lever for movement between its fulcrum point and the free end thereof, and means to move the connection of said spring Copies of this patent may be obtained for five cents toward the free end of the second lever and hand lever for operating said guide, a-rotating member operated by said hand lever, and a spring interconnecting the guide and the rotating member whereby when the hand lever is operated the guide will be moved over the second lever and the spring simultaneously tensioned by the rotation of said 7 rotating member. 7

in presence of'two Witnesses.

- RAY DAVIS.

WVitnesses V V V J. B. MARsI-I,

W. J SGHMUDEMANN'.

Washington, D. C. V

' 40 7 In testimony whereof I aflix my signature

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