US1735998A - Hand tool - Google Patents

Description

Nov. 19, 1929. J. G. ELKIN V 1,735,998

HAND TOOL Filed Nov. 15 1926 v INVENTOR I 12005 6, [Z/mv I ATroR Exg Patented Nov. 19, 1929 "JAcoB e, ELKIN, on NEW YORK, N. Y.

HAND TOOL Application filed November 13, 1926. v Serialrto', 148,148.

The present invention relates to new and useful improvements in tools and it pertains more particularly to tools of the class known as hand tools. 7

It is one of the primary objects of the present invention to provide a tool which is 'highlyefiicient and, at the same time, may be constructed at relatively low cost.

It is a further object of the invent-ion to provide a hand tool in which the blade of the tool, while being securely'retained in a suitable holder while in operative position may be readily removed therefrom for the urpose of sharpening, renewal or the like. lVith the foregoing and other objects in View, the invent-ion consists of a holder'provided with a suitable abutment with which 7 the blade is adapted to engage and an operating handle, which operating handle constil tutes resilient means for retaining a blade in operative position with respect to the said abutment and holder and, at the same time, permit of its ready removal from the holder i for various purposes Reterring to the drawings 1 I Figurefl is a View in elevation of a hand tool constructed in accordance Withone form V of the invention; 7

Figure 2 is a view in elevation of tool blade used in connection with the present invention; V

Figure 3 is a view on an enlarged scale, partly broken away and partlym section of a modified form o't-the invention;

Figure 4 is a detail view partly broken away and partly in section of a slightly modified form of the invention shown in Figure 1;

Figure 5 is a detail sectional View of a still further modified form of the invention; Figure 6 is a detail sectional View taken on the line 66 of Figure l; I

Figure 7 is a detail view partly broken away and partly in section of a still further modified form of the invention; c Figure 8 is a detail sectional view taker on the line 88 of Figure 7;

Figure 9 is a view partly broken awayand partly in section of a st1ll further modified form of the invention;

Figure 10 is a detail sectional view taken on the line 1010 of Figure 9; and

Figure 11 is 'asection taken on the line 1111 of Figure 6. 7

In carrying out the present inventioman elongated strip of suitable material is employed. This elongated strip constitutes a blade holder and is provided at one end with a loop 5, the free end of whichis spaced with respect to the body portion Got said holder, as shown in thedrawings. The t'ree end ot'the loop 5 is provided with a notch or the like 7. The body portion 6 is provided with a groove 8 which extendslongh tudinally thereof and this groove is adapted to receive the blade 9, whi'ch'in the present illustration isshownas asaw blade.

In'that form of the invention shown in Figures '1, 2 and. 4, the blade 9 is cutout as at 60 to provide ashoulder in the form'of an angular wall 61, a. straightwall 62 being pro:

vided opposite to the wall 61. Inthis form of the invention, the abutment designated 63 is formed inany desired manner, and it y lies within the cut-out portion of the blade and in engagement with the angular wall thereof. r

With the parts inthe position shownrin Figures 1 and 4, it will be apparent thatthe resiliency or" the loop 5 of the holder is exerted in the direction of the body portion 6 of the holder as designated by the line A-'A Y and also in the direction of the abutment as designated by the line 13 13, which resiliency tends to at all times maintain the blade in the loop is sprung sufiiciently to permit" of y the angular wall 61 Tengagingthe abutment, it being understood that the resiliency of the loop permits of sufiicientmovement of the blade longitudinally of the holder to permit f of this operation. If now the loop be released, the bladelis forced inwardly of the slot 8 of the holder and forwardly of the holder and engagement between the angular wall 61 and the abutment 63 is maintained byrthe resiliency ofthe loop 5.

The rear end of the blade 9 has an angular portion 16 which-is received in the notch 7 of the loop 5 for the purpose of preventing accidental displacement of'the blade relative to the holder.

In the form of the invention shown in Figures 3, 5 and 6, the forward end of the blade 9 is cut away to form a projecting member 11 which provides a'shoulder. or abutment' 12. r

In that form of the invention shown in Figure 3 the forward end ofthe groove 8 preferably terminates short of the end of the body portion 6 of the holder and is undercut to provide an abutment with which shoulder V 12, provided by the member 11, is adapted to engage, as more clearly shown in Figure 8. In the form of the invention shown 1n F1g-.

'ures 5 and6, an abutment 2.0 is provided by distorting the side walls of the slot 8 in the body portion 6, as indicated at 21 in'Figure 6 and asshown-in Fig. 11. It will be understood that the action of placing and removing the blade is the same in this form of the invention as heretofore described. V V

In that form of the invention shown in Figures 7' and 8, the body portion of the tool is formed with a recess 22, which construe: tion-provides an abutment 24 for engagement by the shoulder 26 formed on the blade 9.

I shoulder 26 is preferably formed by cutting the back or rear edge of the blade 9 as indicated at 28 and forcing a portion of the -material from which the blade is formed,

laterally outwardly with respect to the bodyportion thereof. In this form of the invention,it*will be noted that the blade isretained in position and removed from the holder in the same manner as in the forms heretofore described.

In that form of the invention shown in 7 Figures 9 and 10, it will be noted that a pin 30 is angularly positioned'in the slot 8 of the body portion 6 of the holder,which pin provides an abutment for the blade 9 and in this form of the invention, the rear edge of the blade 9 is provided with a notch or cut-out portion 32 within which the end of the pin 30 is received when the blade is placed in the holder, it being understood that the placement of the blade inthe holder and the removal of the blade therefrom is the same as in blade thus lending rigidity to the same during 1 to 3 inclusive and Figure 5, in which the blade projects beyond the holder as indicated by the reference character 40 has its advantages in that it permits of the blade being used inrthe manner of a keyhole saw, for ope eration in relatively close quarters wherespace or dimension would not 'permitof the use of a tool of full size. I 7

From the foregoing, it will be apparent that the present invention providesa new and improved form of hand tool in which the blade is rigidly held, or retained in the holder when in its operative'p osition with respect thereto and at the same time, the, blade is capable of ready removal from the holder is if when desired, and while inlthepresent in-:

a groove extending therealong', an abutment c in said groove, a handle' for said holder, said handle being resilient, and spaced with respect to the abutment, and a blade, said blade havmg a notch 1n its back edge, for engage ment with said abutmentl'to limit movement of said blade in the direction of said abutment,and said blade having 'ineans for inter engagement with the handle of the holder to prevent movement of the blade inafdirection away from the holder, j V I 2 A hand tool comprising aho'lder having a groove extending therealong, an abutment in said groove atthe forward'end of the holder, a resilient handle formed-upon the rear end of said holder, and ablade adapted to be received ,in the groove ofthe holder, said blade being notched for the reception of the abutment in the groove, and adapted to be engaged by said handle whereby the blade is secured in the groove of the holder between the abutment and the handle Signed at New York, New York, this 9th v day of November, 1926. r r JACOB G. ELKIN.

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