US1082293A - Shaft-boxing. - Google Patents

Description

magmas,

C. THOMAS.

SHAFT BOXING.

APPLICATION FILED AUG.5, 1912.

Patented Dec. 23, 1913.

CHARLES THOMAS, OF JOLIET, ILLINOIS.

SHAFT-BOXING.

Specif cation of Letters Patent.

Patented Dec. 23, 1913.

Application filed August 5, 1912. Serial No. 713,263.

To all whom it may concern Be it known that I, CHARLES THOMAS, a citizen of the United States, residing at No. 107 Catalpa street, Joliet, in the county of Will andv State of Illinois, have invented a new and useful Shaft-Boxing, of which the following is a specification.

My invention is adaptable to shafts of all kinds, but is especially intended for use in automobiles and for crank-shafts in automobiles. 1 i

The objects of my invention are, by a combination of mechanisms, to maintain the correct relative dimensions of the cylinder of the box and the shaft journaled therein, notwithstanding the wear on the surfaces of the cylinder and the shaft, and thus to take up increase of space caused by friction, and increase the durability and length of time the boxand shaft can be satisfactorily used.

Tnthe accompanying drawing-Figure 1 is a perspective view of the shaft-box before being used; Fig. 2 is a perspective view of the same after being used for nearly the full period of satisfactory use; and Fig. 3 is a view of one of the twin wedges.-

Frame 1 of the shaft box, especially when the shaft is a crank-shaft, is integral with, or connected to, the end of some connecting rod, as shown. The cylinder 10, of the box, is sunk about half into the bottom part of frame'l. The cap 2 fits in between the side walls of frame 1 and down over the shaft, and when both shaft and box are new leaves the space between the cap and the bottom of the frame, shown in Fig. 1. On top of said cap is inserted the liner 3. The wedges 4 are slidable on guides 6. The compression springs 5 are first slid onto said guides, after which said wedges, through perforations in the same, areslid over opposite ends of said guides, said springs being centered on the teats 11, and by compressing said springs, the edges of said wedges are inserted into the slots 7 and rest on said liner 3, the position of said liner keeping the pressure of said wedges against, the upper surface of said slots. The guides 6 are of a length equal to the distance between the inner edges of the top parts of the frame l. 'Of. course,

when the box is new the said springs are compressed to about the limit, and as the cylinder surface of said cap andframe, as well as the shaft, are worn away by friction, and the counter pressure on said springs lessened, said Wedges are forced outward and said cap downward, and any play in the cylinder that would otherwise result from friction is taken up as it occurs, until eventually the springs, wedges and .cap

would be in the position shown in Fig. 2. p

The liner 3 is secured to cap 2 by studs 8 screwed through perforations 12 into said.

cap. The cotter 9 is to prevent said studs from turning. I

What I claim is 1. An automatic self adjusting shaft box; a movable cap within the frame of said box; a liner secured to the top of said cap; wedges resting on the top of said liner, one on either side and each movable in a slot in the side of said frame, and having perforated flanges; guides for said wedges connecting the upper parts of said frame, compression springs coiled on said guides-between the flanges of said wedges.

2. A boltless and self-adjusting automobile shaft-box, formed integral with a supporting rod or beam; a cap movable Within the frame of said box; the concavity of said cap and theconcavlty of the bottom of said frame forming the shaft bearing and leaving a space between the two parts to permit the lowering of said cap; wedges-resting on the top of said cap and movable through slots in the sides of said frame; a compensating liner.inserted between said'cap and said wedges; guides connecting the upper ends of said frame; compression-springs coiled around said guides acting on said wedges.

3; A shaft-box, having a one-piece frame formed integral with a supporting beam; a concave cap movable in said frame and in connection with a concavity in the bottom of said frame, forming a shaft bearing and leaving a space between the two parts to permit the lowering of said cap; wedges so adjusted in said flame as to rest on said cai) signature in the presence of two subscribing and movable21 through slots in said frame; 21 witnesses, this 1st day of August, 1912. liner in'serte between said cap and wedges guides between the open ends of said frame; CHARLES A com ression syrings coiled on each of said Witnesses:

guides to actuate said Wedges. WILLIAM THOMAS,

1n wltness whereof I hereunto aflix my JAB. CASWELL.

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