US1804699A - Shaft keying device - Google Patents

Description

M y p. c. MAIER SHAFT KEYING DEVICE Filed Jan. 20, 1922 mHm.EEEEL a..-

Patented May 12, 1931 UNETED STATES PATENT OFFICE DWIGHT C. MAIER, OF BRYAN, OHIO SHAFT KEYING DEVICE Application filed January 20, 1922. Serial No. 530,721.

i i said recess to engage a corresponding recess in the sleeve to be fastened to said shaft. It is further proposed to arrange the ends of the key so that they willextend beyond the sleeve and be adapted to be bent or peened over the end of the sleeve for the purpose of preventing displacement of the key by an accidental longitudinal movement thereof.

With the foregoing and other objects in view, the invention consists in the novel construc-tion, combination of parts and in the details of construction hereinafter described and claimed and illustrated in the drawings,

in which:

Figure 1 is a longitudinal section of the 535 improved device.

Figure 2 is an end View of the sleeve per se showing the recess to receive the key and the slot to receive the bent end of the key.

Figure 3 is a side view of the sleeve per se.

Figure 4 is a side view of the key and Figure 5 is a top plan view of the device as shown in Figure 1.

Referring more particularly to the drawings, numeral 1 represents an upright post provided with an interiorly screw-threaded barrel 2 to receive an externally screwthreaded sleeve 3.

The shaft 4 and the sleeve 3 are provided with opposing longitudinal recesses 11 and 8 Q to receive the key 10. At each end of the advantage over the type of key in which the ma or portion thereof rests within the one member to be keyed, while only a lug or projection of the key engages the other member to be keyed, in which case the efliciency of the key is impaired as a fracture of the lug or pro ection renders the key inoperative and results in an undesired relative rotation between the two members to be keyed together.

A further advantage of the proposed device resides in the feature of the bending or peening of the key over the ends of the sleeve, there being an inwardly extending angular slot as shown in Fig. 8 in each end of the sleeve to receive said peened portion in order that a nut or the like (not shown) may be screwed on the sleeve and lie flush at either I end thereof. By this construction there is effectively eliminated the possibility of longitudinal movement or removal of the key in the sleeve when in operation.

Having thus described my invention, I

claim:

The combination with a shaft having a longitudinal recess in the surface thereof, of a sleeve mounted thereon, said sleeve having a corresponding longitudinal recess opposed to said shaft recess, a key extending throughout the length of said sleeve and engaging in both of said recesses and projecting ears integral with said key and on the ends thereof for securing said key to said sleeve, said sleeve being provided with angularly extending surfaces engaged by said projecting ears on said key ends, said angularly extending surfaces being cut at an acute angle relative to the longitudinal recess in said sleeve.

In testimony whereof I have aflixed my signature.

, DWIGHT C. MAIER.

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