US1431788A - Rope-sheave structure - Google Patents

Description

W. E.,HALE.

ROPE SHEAVE STRUCTURE.

APPLICATION FILED NOV.28, I921.

Patented 00 t. 10 1922 Effai'a fornc' M- 0% Patented Oct. 10, 1922.

PAYT

WILLIAM E. HALE, OF FORT WASHINGTON, PENNSYLVANIA, ASSIGNOR TO B. H. BEAUMONT COMPANY, OF PHILADELPHIA, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

ROPE-SHEAVE STRUCTURE.

Application filed November 28, 1921. Serial No. 518,253.

To all whom it may concern:

Be it known that I, WILLIAM E. HALE, a citizen of the United States, residing in Fort Washington, Montgomery County, Pennsylvania, have invented certain improvements in Rope-sheave Structures, of which the following is a specification.

The object of my invention is to construct a balanced rope sheave structure so that it can be mounted on the upper end of a concrete, iron, or wooden post in such a manner that it will accommodate itself to the rope which passes around the sheave.

In the accompanying drawings:

Fig. 1 is a side view of my improved balanced rope sheave, mounted according to my invention;

Fig. 2 is a plan View;

Fig. 3 is a vertical sectional view through the pivot at the post; and

Fig. 4; is a side view showing the balanced sheave mounted on a supporting bracket.

Referring to the drawings, 1 is a post of concrete, iron or wood. 2 is a plate mounted on the upper end of the post and secured thereto by bolts 3. 4 is a center pin in the form of a bolt. This pin 4 has a head at its upper end and extends through the pivot block 5 and into the plate 2, the nut 6 being located in a recess in the underside of the plate.

This construction can be made very substantial and will allow for the free rotationof the pivot block 5 on the plate.

The body 7 of the sheave structure is connected to the pivot block 5 by a transverse pin 8 on which it can freely turn. Swiveled to the body 7 of the structure by a longitudinal pin 9 is a frame 10 in which are the bearings for the spindle 11 on which a grooved rope sheave 12 can turn. 13 is a bracket secured by bolts, or other fastenings, to the body 7. This bracket has a rear- Wardly extending arm 14, which passes over the pivot a and is preferably shaped so that it will be on a horizontal line with the sheave. The arm is perforated to receive the pins of an adjustable weight 15 which can be arranged to balance the sheave.

In some instances, the plate 2 may be secured to a bracket l projecting from a post 1", Fig. 3. In this instance, the arm 14 may form-an integral part of the body 7 and project rearwardly from the pivot pin 8 By the construction hereinbefore described, the balanced structure can be mounted on the upper end of a fixed post and can turn on a vertical pin at any angle desired, according to the lead of the rope. It can also turn on a horizontal pivot, or the sheave frame can turn on a longitudinal pivot to accommodate the rope, which passes around the sheave. The sheave is held by the balance weight normally in a horizontal position to prevent chafing of the rope on the frame, or on the sheave.

I claim:

The combination in a rope sheave structure, of a plate adapted to be secured in a fixed position; a vertical pivot pin on the plate; a pivot block mounted on the pin and adapted to swing in a horizontal plane; a sheave structure body; a horizontal pin connecting the body to the block; a rope sheave mounted on the body; and a weighted arm attached to the body and extending rearwardly over the block and its pivot and counterbalancing the sheave.

WILLIAM E. HALE.

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