US2203714A - Blade holder - Google Patents

Description

n 1940- H. A. D. BYAER 2,203,714

. BLADE HOLDER Filed Jan. 31, 1939 Fig.1.

arm n m 1 WI THE 85 Patented June 11, .1940

UNITED STATES 3 Claims.

The invention aims to provide an exceptionally simple and inexpensive, yet an effective holder by means of which a thin blade may be so held as to form an efficient knife, for use by the surgeon, the seamstresafor others.

A further object is to provide a holder which will effectively hold ablade formed from half of a safety razor blade broken apart longitudinally.

With the foregoing in view, the invention resides in the novel subject matter hereinafter described and claimed, description being accomplished by reference to the accompanying drawing.

Figure l is a side elevation showing a blade held in the holder.

Figure 2 is a lower edge view.

Figure 3 is an enlarged fragmentary elevation with the finger l5 removed.

Figure 4 is an enlarged detail upper edge view.

Figure 5 is a fragmentary perspective view.

Figure 6 is an upper edge view showing a modification.

In the drawing above briefly described, a preferredconstruction has been illustrated and while this construction will be specifically explained, it is to be understood that variations may be made within the scope of the invention as claimed.

Two spring arms l and H are shown integrally united, at their rear ends I2 and diverging forwardly to provide a handle, said arms being tensioned to move away from each other. Near their front ends, the arms 50 and H are reduced 0 in width as shown at I.- and crossed, and the portions of said arms projecting forwardly be yond the crossing point, constitute two holding fingers l4 and I for a blade 16, said fingers having means for holding the blade against slipping with respect thereto. The outer sides of the arms I 0 and II are suitably roughened at "to provide for an effective grip thereon and a blunt blade l8 preferably projects ream wardly beyond said arms if the device be inwith a h1g2!) which projects rearwardly beyond said end l9 and also projects upwardly beyond the upper edge H of the blade. The irregular formation of this edge 2! is due only to the formation of the safety razor blade from which [PATENT OFFICE the blade I6 is formed. If desired, the blade l6 may have an acute front end formed by breaking the safety razor blade along an inclined line 22.

In the present disclosure, the finger I4 is provided with a smooth inner side to lie against one side of the blade l6, said finger being provided along its upper edge with a rib 23, the rear end 24 of said rib, being spaced forwardly from the rear extremityof said finger. This finger (I 4) is also provided with a stud or other projection 25 which projects laterally from its inner side at a point below the rear end of the rib 23. The lower edge of the rib 23 abuts the upper edge 2| of the blade IS, the rear end 24 of said rib abuts the front edge of the lug 20, and the projection 25 abuts both the lower end of the lug 20 and the rear end IQ of the blade. It will thus be seen that if this blade be tightly held against the finger l4, it cannot move in any direction with respect to said finger. This holding function is performed by the finger l5 which lies tightly against the blade l6 under the rib 23, the upper edge of said finger [5 being preferably stepped to provide it with a major portion 26 underlying the rib 23, and with a minor por tion 21 behind said rib to clamp the lug 20.

It will be seen from the foregoing that the blade l6 will be rigidly held between the two fingers I4 and I5 to provide an effective knife for any of varioususes. By simply pressing the spring arms Ill and H toward each other to separate the fingers l4 and I5, the blade l6 may be readily removed and another substituted.

Obviously the fingers l4 and I5 may either be straight as shown in the form of construction first illustrated, or curved as shown in Fig. 6. When the fingers are curved, even though the blade l6 may be normally flat, the pressure of said fingers against opposite sides of the blade due to the tension of the arms Ill and II and to the flexibility of the blade, will curve said blade in the proper manner. While I have referred to constructing the blade from part of an ordinary safety razor blade, it is to be understood that the invention is not so limited. The blades may be especially made of various thicknesses of metal and with variously shaped cutting edges depending upon the particular uses intended for the instrument. It will also be clear both rearwardly and upwardly from its rear end,

that Within the scope of the invention as claimed, variations may be made over the present disclosure.

I claim:

1. A holder for a blade having a lug projecting both rearwardly and upwardly from its rear end, said holder comprising an elongated handle, a blade-clamping finger projecting forwardly from said handle and having an inner side to lie against the blade, said finger being provided along its upper'edge with a rib projecting laterally beyond said inner side to abut the upper edge of the blade, the rear end of said rib being spaced forwardly from the' rear end of said finger to abut the front edge of the blade lug, said finger being also provided on said inner side with a lateral projection to abut the lower end of the blade lug and the rear end of the blade, and a second blade-clamping finger independent of the aforesaid blade-clamping finger, said second finger projecting forwardly from said handle and cooperating with the first mentioned finger in forming a twoepart'clamp for the blade, said fingers being connected with the handle for relative movement to and from blade clamping position. 2. A holder for a blade having a lug projecting said holder comprising an elongated handle, a finger projecting forwardly from said handle and having an inner side to lie against the blade, said finger being provided along its upper edge with a rib projecting laterally beyond said inner side to abut the upper edge of the blade, the rear end of said rib being spaced forwardly fromv the rear end of said finger to abut the front edge of the blade lug, said finger being also provided on said inner side with a lateral projection to abut the lower end of the blade, lug and the rear end of the blade, and a second finger projecting forwardly from said handle for clamping the blade against the first mentioned finger, said second finger having a stepped upper edge providing it with a major portion underlying said rib to lie against the blade, and witha minor portion behind said rib to lie against the blade lug, said fingers being connected with the handle for relative movement to and from blade clamping position.

3. A holder as specified in claim 1, wherein the handle embodies diverging spring arms united at their rear ends and tensioned to move away from each other, the front ends of said arms being crossed and carrying said fingers.

HARRY A. D. BAER.

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