US2520292A - Planer toolbox - Google Patents

Description

Patented Aug. 29, 1950 PLANER TOOLBOX John M. Walter, Cincinnati, Ohio, assignor to The G. A. 'Gray Company, Cincinnati, Ohio, a

corporation of Ohio Application December 13, 1946, Serial No. 716,138

2 Claims.

My invention relates to the tool boxes sometimes called clapper boxes in metal planers in which is pivotally held an apron, sometimes called clapper block. The construction of the tool box is such that it provides for a pivoting member for the apron and the apron in normal and working position, lies between two side or marginal ribs on the tool box, these two ribs forming walls defining a vertical pocket or jaw.

The apron is accurately machined as are the side walls forming the jaw, so that the apron works freely between the side walls but has no appreciable looseness. After the machine has been in use for some time, the wear on the side walls or of the apron will develop a looseness of the apron in the jaw, which impairs the quality of the work produced by a tool located on the apron.

The object of the present invention is to supply means for compensating for such wear, and reconditioning a worn tool box when this defect has developed.

The preferred mode of carrying out my object is illustrated in the drawings and will be described, and the novelty inherent therein will be set forth in the appended claims.

In the drawings:

Figure 1 is a side elevation of a tool box apron with my invention applied thereto,

Figure 2 is a front elevation of the same parts.

Figure 3 is a section on the line 33 of Figure 2.

Figure 4 is a perspective of the filler plate.

In the drawings, l is a tool box, and 2 is an apron suspended from a pivot pin 3. The apron has clamp devices 4 for mounting tools on the face thereof, such as tool 5. The side walls of the tool box shown at 6, 6, are machined as is the apron machined to a smooth fit without any substantial lateral play, in the conventional structure, which may be taken to be illustrated insofar as the description has proceeded.

In my improvement I form a kerf or slot 1 in the main body of the tool box which extends from its lower end to a point near the mounting bosses on the tool box for the pivot pin 3. For convenience, the slot is located near one of the wa ls 5. I also provide a plate 8 which fits into this slot, and has holes through it at 9. The tool box plate is also pierced with holes 10, which are intercepted by the slot, the portions I a of the holes inside of the slot with respect to the apron being threaded.

The holes I 0 match with the holes 9 and screws I I enter the tool box from the side, pass through the holes of the plate and are threaded into the inner port ons Illa of the holes in the tool box.

By tighten ng down the screws, the tool box is first prepared for its final machining. Preferably the slot is cut with great accuracy after the casting for the tool box has been given its first machining. After the plate has been inserted and the screws turned in'tightly, the final machining and scraping to obtain an accurate fit for the apron is carried out.

Since the tool box is practically solid and without give when the screws fasten the plate tightly in place, the slot and plate construction do not impede this final fitting.

Now should wear take place in the walls 6 or the sides of the tool box, requiring repair because the tool box becomes free for slight lateral play, the procedure is as follows. The screws are backed out and the plate removed, whereupon it is carefully machined down somewhat to make it thinner. It is then reinserted in the slot in the tool box and the screws tightened down again. This will result in the two walls forming the jaw for the apron being brought closer together. The refitting by taking some metal from the apron perhaps, and from the side walls, to regain a perfect fit, will then be carried out as in the first instance.

This operation can be repeated a number of times and provides for repair which maintains the combination of tool box and apron in condi tion for the best operation.

It will be evident that without departure from the principles illustrated in the foregoing, it will be possible to attain the equivalent ends by modifications of the precise structure and arrangement shown.

Having thus described an example of my inven tion, what I claim as novel therein, and Wish to secure by Letters Patent is:

1. A tool box or the like having means for mounting pivotally an apron therein, said tool box having walls defining laterally a jaw within which the apron is to be fitted, a slotted portion formed in said box between the said walls, a wear compensating plate located in said slot and screws engaging through the plate and through the tool box to grip the plate tightly in the said slot thereby filling the slot.

2. The combination of claim 1 in which the plate has apertures therein, and matching holes are formed in the side of the tool box which are intercepted by said slot, said screws being threaded into the inner end of sai holes.

. JOHN M. WALTER.

REFERENCES CITED The following references are of record in the file of this patent:

UNITED STATES PATENTS Number Name Date 625,216 Tobey May 16, 1899 994.965 Winkler June 13, 1911 2,347,323 Jarrell Apr. 25, 1944 2,349,004 Richards May 16, 1944

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