US1357165A - Fastener for mower guard-fingers - Google Patents

Description

R. C. HARRIS.

FASTENER FOR MOWER GUARD FINGERS.

APPLICATION FILED MAY 27, I920.

Patented Oct. 26, 1920.

5250M! UNI ENTOR.

BY v IZWNEW" RICHARD C. EAR/31S, 0F FALLONI, NEVADA..

FASTENER FOR MOWER GILAgD-FINZGERS.

Specification of Letters Patent.

Patented Oct. 26, 1920.

Application filed May 27, 1920. Serial No. 384,669.

T 0 all whom it may concern.

Be it known that I, RICHARD C. HARRIS, a citizen of the United States,residing at Fallon, in the county of Churchill and State of Nevada, have invented certain new and useful Improvements in Fasteners for Mower Guard-Fingers, of which the following i a specification.

This invention relates to guard fingers and finger bars for mowers and has special reference to the means for fastening the guard finger to the finger bar, the object ofthe invention being to provide a fastening device which will be strong, easily manipulated, inexpensive and of such form as to offer no obstruction to the movement of the cutter bar. The invention is illus trated in the accompanying drawing and resides in certain novel features which will be particularly pointed out in the claims following a detailed description.

In the drawings- Figure 1 is a plan view of a guard fin ger and a portion of the finger bar with my improved fastening device applied thereto;

Fig. 2 is a view partly inside elevation and partly in vertical section;

Fig. 3 is a perspective view showing the parts of the fastening device separated but approximately in their proper relative positions;

Fig. 4 is an enlarged horizontal section through the fastening device.

The guard finger 1 may be of any wellknown or preferred form and the finger bar 2 is a fiat bar of metal to the under side of which the rear end 3 of the guard finger may fit closely, as shown in Fig. 2. In my present invention, the finger bar 2 is provided with an opening 4 which extends vertically through the bar and has its upper portion flared, as clearly shown in Fig. 2. Upon the upper side of the rear end extension 3 of the guard finger is a stud or projection 5 which, in the illustrated embodiment of the invention, is furnished by the upper end of a rivet inserted through the end of the guard finger. This stud or pro jection 5 is cylindrical in form and its extremity lies in the horizontal plane of the finger bar 2 so that in the completed device these surfaces will be flush. In the projection 5, I form annular grooves 6 and 1ongitudinal notches or grooves 7 leading into the said annular grooves. A cap or nut 8 is provided to fit within the opening or re cess 4 around the projection 5 and this cap has its under side or lower end beveled, as shown at 9, whereby to fit upon the flared surface of the opening 4. In the bore of the cap or nut 8, I provide lugs or proections 10 which are spaced apart a distance equal to the spacing of the grooves or notches 7 and the annular grooves 6 so that the lugs may be caused to move through the notches into engagement with the annular grooves whereupon the nut or cap may be slightly turned so that the engagement of the lugs within the annular grooves will prevent the cap rising from the stud. Preferably the lugs 10 are provided in pairs disposed at diametrically opposite points of the bore of the cap so that the holding strain to which the cap is subjected will be distributed and more effectually resisted.

It will be readily seen from the foregoing description, taken in connection with the accompanying drawings, that I have provided an exceedingly simple means for se curing a guard finger to a finger bar where'- by the parts will be securely held together and there will be nothing projecting above the upper surface of the finger bar to interfere with the movement of the cutter bar. The flared form of the opening 4; and the beveled form of the cap or nut permit these parts to firmly engage and the nut or cap may be brought into its operative engagement with the stud very quickly and without the use of any particular tools. It will be noted that the mutilation of the finger bar is very slight compared with other fastenings which are in general use so that the strength of the finger bar is maintained and owing to the small number of parts required and the simplicity of their construction the cost of the device is very low.

Having thus described the invention, what is claimed as new is:

The combination with a guard finger, and a finger bar extending across the rear end of the guard finger and provided with an opening extending vertically therethrough, of a projection rising from the rear end of the guard finger through said opening in the finger bar and provided with an annular groove and a longitudinal groove intersecting said annular groove, and a cap seating Within the opening in the finger bar and engaging around the projec tion and provided in its bore with a lug adapted to pass through the longitudinal groove of the projection into engagement with the annular groove therein whereby to hold the guard finger to the finger bar, the upper surface of said cap and the eX- 10 tremity of the said projection being flush with the upper surface of the finger bar.

In testimony whereof I aflix my signature.

RICHARD C. HARRIS. [LS-1

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