US785587A - Mechanical speed-governor. - Google Patents

Description

PATENTED' MAR. 21, 1905.

N. W. AKIMOFF. MECHANICAL SPEED GOVERNOR.

APPLIOATION FILED JAN. 21, 1905.

NTTED STATES Patented March 21, 1905.

NICHOLAS W. AKIMOFF, OF PHILADELPHIA, PENNSYLVANIA.

MECHANICAL SPEED-GOVERNOR.

SPECIFICATION forming part of Letters Patent No. 785,587, dated March 21, 1905.

Application filed January 21, 1905. Serial No. 242,050.

To all who/7'2, it may concern:

Be it known that I, NICHOLAS W. AKIMOFF, a subject of the Czar of Russia, residing at the city of Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Mechanical Speed-Governors, of which the following is a specification.

My invention has relation to a mechanical speed-governor, and in such connection it relates more particularly to a gyroscopic device adapted to be employed in conjunction with such a governor. 1

The principal objects of my invention are, first, to provide a governor for slow-speed engines of any type with a gyroscopic device adapted to prevent undesirable fluctuations therein, and, second, to provide for this purpose a governor with a disk adapted to be flexibly and pivotally secured thereto and by its resistance to change in its plane of rotation to counteract and thereby eliminate superfluous sensibility of-the governor.

As is well known, dash-pots have hitherto been employed to overcome the foregoing objectionable features of governors for slowspeed engines in the racing up and down of its axis of rotation. Such dash-pots, how ever, are costly as to installation and maintenance and require constant vigilance, so as to insure proper operation.

The nature, scope, and characteristic features of my invention will be more fully understood from the following description, taken in connection with the accompanying drawing, illustrating, partly in elevation and partly in section, a governor with a disk in pivotal and flexible connection therewith embodying main features of my present invention.

Referring to the drawing, a is a housing secured to an engine. (Not shown.) In the housing a is arranged a shaft 6, which is rotated by a pulley b, driven by any rotating part of the engine. (Not shown.) The rotary movement of the shaft 6, by means of gear-wheels 0 and 0', is transmitted to a spindle (Z, arranged in the housing a, from the free end of which is pivotally suspended arms (Z and cl, carrying the centrifugal balls (Z and 01*. Arms (Z and (Z pivotall y connect the arms (Z and (Z with a sleeve 0, carrying a weight 6, both having a range of sliding movement on the spindle Z. The sleeve 6 is provided with an annular groove 0 adapted to receive a lever f, having its fulcral point f in a bracket (0 of the housing a. One end of the lever f, by means of a rod is connected, for instance, with the throttle-valve of a steam engine, (not shown,) while the other end, by means of a link f is pivotally connected with a shaft g. The shaft 9, by means of a universal joint g, is connected with a shaft h, preferably supported by a sleeve a and arm (6, which is suitably secured to the housing c. The shaft h is provided with a sprocket-wheel It, which by means of a sprocket chain b is connected with a sprocket-wheel if, secured to the shaft 6. On the shaft g is rigidly secured a disk or flywheel g which on account of its flexible connection with the shaft It may assume varying angular positions thereto, but normally in its operative position occupying approximately a position parallel to the spindle (Z. When the shaft 6 is rotated, its movement is transmitted to the spindle d, and the sleeve 6 and Weight rise and fall by the intervention of the arms (Z, (Z (Z and (Z and its balls 63 and (1* in the usual well-known manner. This movement of the sleeve 6, by means of the lever f, is transmitted to the shaft g and disk 9 and by this movement will be held in varying angular positions with respect to the spindle (Z. The disk 9 however, being set in rapid rotation by the shaft Z2 resists a quick change in its plane of rotation and in this manner effectually prevents any sudden movement of the sleeve 0 on the spindle'cl, rendering the governor more stable in its action. Any tendency of the governor to change its position on the spindle (Z in a certain definite length of timefor instance, to automatically readjust the position of a throttle-valve is not resisted by the disk g but is readily permitted by the same. The object of the disk 9 is solely to prevent undesirable sudden fluctuations of the governor in its action.

Having thus described the nature and chjects of my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a speed-governor, a spindle, a sleeve slidably arranged on said spindle, means having centrifugal balls connecting said sleeve with said spindle, means adapted to rotate said spindle, sleeve and balls, a disk, a shaft carrying said disk, means adapted to connect said shaft with said sleeve, means adapted to rotate said shaft and disk, and said disk when rotated adapted to prevent sudden movements of said sleeve on said spindle.

2. In a speed-governor, a spindle, a sleeve slidably arranged on said spindle, means having centrifugal balls connecting said sleeve with said spindle, means adapted to rotate said spindle, sleeve and balls, adisk, a shaft adapted to hold said disk in varying angular and parallel positions with respect to said spindle, means adapted to connect said shaft with said sleeve, means adapted to rotate said shaft and disk, and said disk when rotated adapted to control the sudden movement of said sleeve on said spindle by its resistance to change in its plane of rotation.

3. In a speed-governor, a spindle, a sleeve slidably arranged on said spindle, means having centrifugal balls connecting said sleeve with said spindle, means adapted to rotate said spindle, sleeve and balls, shafts flexibly connected with each other, a disk arranged on one of said shafts and held by the same parallel and in varying angular positions with respect to said spindle, means adapted to connect said disk-shaft with said sleeve, means adapted to rotate said shafts and disk, and said disk when rotated adapted to prevent sudden movement of said sleeve on said spindle.

4:. In a speed-governor, a spindle, a sleeve slidably arranged on said spindle, means connecting said sleeve with said spindle, shafts flexibly connected with each other, a disk carried by one of said shafts and held by the same parallel and in varying angular positions with respect to said spindle, means adapted to connect said disk-shaft with said sleeve, means adapted to rotate saidshafts and disk and said spindle independently of each other, and said disk, when rotated, adapted to control the sudden movement of said sleeve on said spindle by its resistance to change in its plane of rotation.

5. In a speed-governor, a housing, a spindle arranged therein, a sleeve slidably arranged on said spindle, means connecting said sleeve with said spindle, shafts partially supported by said housing, a universal joint connecting the shafts with each other, a disk carried by one of said shafts and held by the same parallel and in varying angular positions with respect to said spindle, means adapted to connect said shafts with said sleeve to partially support one of said shafts and its disk by said sleeve, a driving-shaft supported by said housing adapted to rotate said spindle, sleeve and balls, means connecting the driving-shaft with one of the disk-shafts and adapted to rotate the same and disk with a speed greater than that of said spindle, and said disk when rotated adapted to check the sudden movements of said sleeve on said spindle by its resistance to change in its plane of rotation.

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

NICHOLAS AKIMOFF.

Witnesses:

J. WALTER DOUGLASS, THOMAS M. SMITH.

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