Untitled record

Application filed August 16, 1882. (No model.) Patented in Germany December 9, 1880, No. 14,013.

Io all whom it may concern:

Be it known that we, Oskar Dittmar and Carl Schmidt, subjects of the Emperor of Germany, residing at Vienna, Austria, and at 5 Bockenheim,near Frankfort-on-the-Main, Germany, have invented certain new and useful Improvements in Regulators for Motors; and we do hereby declare the following to be a full, clear, and exact description Of the invento tion, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters or figures of reference marked thereon, which form a part of 15 this specification.

The object of our invention is to provide a new and improved governor or regulator for motors or devices for regulating the speed of motors.

The invention consists in a Closed drum divided into compartments by radial partitions provided with slots or apertures which establish a communication between the compartments. The drum is partly filled with a liquid, or sand, 25 or other granulated or pulverized material, which is raised when the drum is rotated, thereby checking the speed; but the said liquid or other matter flows back through the apertures, and this prevents the speed from beingchecked 30 too much. By varying the size of the drum and the Sizes of the slots or apertures, so that the liquid or other material can flow back more or less rapidly, the speed will be checked more or less. The device can be adjusted as desired.

Reference is to be had to the accompanying drawings, forming part of this specification, in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 is a side view of our improved regu40 lator for motors, parts being broken out and others shown in section. Fig. 2 is a plan view of the same, parts being broken out and others shown in section on the line x x, Fig. 1. Fig. 3 is a side view of a modification of our im45 proved regulator for motors, parts being broken out and others shown in section. Fig. 4 is a cross-sectional plan view of the same on the line Ο P, Fig. 3.

Referring to Figs. 1 and 2, a hermeticallyclosed drum, A, is mounted on a shaft, D, and 50' the said drum is divided into a series of compartments, a, of equal size by radial partitions, E, which extend to within a short distance from the shaft B, whereby the compartments will be connected at their inner ends by an 55 annular space, C, formed around the shaft. An aperture, b, is provided in each partition E near the outer ends, so that the compartments will also be placed in communication with each other by the said apertures. A fluid, sand, or 60 other granular or pulverized matter is placed into the drum to fill about oue-third of the same, as shown. If the shaft D is at rest the liquid in the several compartments will have the same level; but if the shaft D is rotated 65 the liquid in the compartments raised toward the shaft in the direction of rotation will be higher than the level of the liquids in the other compartments, and will have the tendency to turn the drum and shaft in the inverse direc- 70 tion of the arrow, and will thus retard or check the movement of rotation of the shaft. The liquid immediately flows toward thelower compartments through the apertures b, and thus relieves the shaft from the strain in the inverse 75 direction. As the drum is being rotated continually it will check the movement continually; but at the same time the liquid continually flows back through tbe apertures a. If the said apertures are very small and the liquid 80 can flow back but very slowly, the rotary movement of the shaft will be checked much more than if tbe apertures b were larger an d the liquid can flow back more rapidly. By varying the size of the drum and the size of the apertures 85 the speed of a motor can be regulated at will.

Sand or other granulated or pulverized material can be used equally as well as liquids.

In the modification shown in Figs. 3 and 4, the drum is provided with a circular center- 90 piece, E', forming an annular space along the periphery of the drum, which space is divided into h series of compartments, a', by radial slats /, between which slots are formed. In this case the liquid or sand flows back through 95 the said slots; otherwise the device operates

268,641 the same as before, and can be adjusted by varying the size of the drum and the size of the slots.