US1207282A - Sharpening-tool. - Google Patents

Description

F. EMIVHNGER.

SHARPENING TOOL.

APPLICATION FILED DEC. 30. 19l5.

Patented Dec. 5,1916.

LUTL98QL FRANK EMMINGER, OF CINCINNATI, OHIO.

SHARPENING-TOOL.

LZIWESZ.

Specification of Letters Patent.

Patented Dec. 5, 11916.

Application filed December 30, 1915. Serial No. 69,480.

To all whom it may concern Be it known that I, FRANK EMMINGER, a citizen of the United States, and a resident of the city of Cincinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Sharpening-Tools, of which the following is a full, clear, and exact description, reference being had to the accompanying drawing, forming part of this specification.

My invention relates to tools for sharpening beveled edged blades such as are found in shears, scissors and the like. For sharpening such blades, it is desirable to have a positive method of applying the abrasive material on the correct angle of the bevel of the blade, and it is desirable to have some method of holding the blade securely in the proper relation to the abrasive material during the entire sharpening operation.

It is the object of my invention to provide a holder for abrasive material having a positive guide for the one side of a blade and having means for retaining the abrasive material at the correct angle to said holding device. I have found that it is not sufiicient to rely on a beveled piece of abrasive material which is seated on a base because the corner formed on the piece of material in such an arrangement will not provide a sharp meeting line to receive the extending edge of the beveled blade to be sharpened.

It is accordingly my object to provide a holder which will give a sharp, well defined corner for the lower edge of the abrasive material, and it is generally the object to provide an inexpensive and neat tool which can be easily employed by any inexperienced person in sharpening shears, scissors and the like, at home, or in the shop.

These objects I accomplish by that certain construction and arrangement of parts to be hereinafter more specifically pointed out and claimed.

In the drawings, Figure 1 is a perspective view of the device. Fig. 2 is a central vertical section thereof. Fig. 3 is a perspective view of a file. Fig. 4 is a perspective view of the holder with the file removed.

In the adaptation of my invention shown in the drawings is shown a tool for sharpenping shears and scissors which have a bevel edged blade and a flat under surface for the blades leading to the beveled surface. It will be understood that where a blade is being sharpened which has a segmental shape or other shape, that the holder would have to be modified in a manner proper to give the required bearing surface to hold the blade in the desired relation to the piece of abrasive material.

In the device as shown, a piece of sheet metal or the like is used to form the holder. It is extended at 1 to form a flat base to receive the fiat side 2 of a scissors blade. A bend or countersink is formed at 3 behind the base 1 and the metal is bent back from said bend at 4: at the angle proper to seat the file 5 so that the said file will lie at the proper angle to the base for exactly contacting with the bevel edge 6 of the blade of the scissors. The metal is then bent out and back over itself and then upwardly at the proper angle for the file at 7. At the upper edge of this portion are formed tongues 8, 8, for engaging around the side of the file and 9 for engaging the top thereof.

It will be understood that while a file is shown, this is intended to represent any abrasive block, both in the specification and in the claims that follow.

The holder as now described is preferably made out of one piece of metal stamped into the proper shape as shown in Fig. 4. It is then ready to receive the file 5 which is seated at f and held in place by bending the tongues 8 around it at the sides and the tongue 9 down onto its upper side. The block can be dismounted for replacement or cleaning by bending out the tongues. The file is thus held at the correct angle to the base and the base acts as a guide for the fiat side of the blade. It is also now evident that the blade when laid fiat on the base will contact with its extreme edge directly against the file. The fact that the bend at 8 is not made on a sharp line does not make any difference, as to this feature, and it is entirely independent of the sharpness of the corners of the file.

The most important feature of my invention is this fact that by mounting the file in a seat below the surface of the blade supporting base, and arranging the file at the correct angle, I am enabled to provide absolutely for the impinging of the forward edge of the scissors blade against the file instead of its impinging in a corner which allows this front edge to be unaffected by the sharpener, and also, of course, that I accomplish this in a simple and extremely inexpensive holder.

It is possible to modify my invention in many respects Without departing from the spirit thereof and it is desired that changes and modifications be considered covered which fall within the scope of the claims, and I do not wish to be limited to exact structure in my claims, because of my failure to mention such modifications, or because of my failure to mention or appreciate the various uses to which my device may be put.

Having thus described my invention, What I Copies of this patent may be I claim as new and desire to secure by Letters Patent, is

1. In a scissors sharpener, a metal. clip having return bend and a recess in the lower portion, a file seated in the recess with its face at anacute angle to the said lower portion, and means on the upper portion to hold the file in said recess.

2.- In a scissors sharpener, a metal clip having return bend and a recess in the lower portion, a file seated in the recess with its face at an acute angle to the said lower portion, and means on the upper portion to hold the file in said recess comprising an angling bend to lie along the back of the file and bendable tongues to engage over the forward edge thereof.

FRANK EMMINGEII.

obtained for five cents each, by addressing the Commissioner of Patents Washington, D. C.

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