US1476030A - Knife - Google Patents

Description

7 Dec. 4, 1923. 1,476,036

H. H. DOEHLER ET AL KNIFE Filed July -9, 1925 Patented Dec. 4 1923.

image ram 955L- near/ran H. nonrrnna AND MARCUS STERN, OF BROOKLYN, ivEw YoRmsAIn'sTERN AssIqNon' To SAID DOEHLER. i

KNIFE.

Application filed July 9,

To all whom it may concern:

Be it known that we," HERMAN H. DoEH- LEE, a citizen of the United States, and MARCUS STERN, a citizen ofthe United States,

5 both residing in Brooklyn, county of Kings,

and State of New York, have invented certain new and useful Improvements cation. i This invention relates to knives of the type in whichthe blade ifoldsfwithin the handle and which arefconventionally known as pocket knives.

It is an object of this invention to produce a knife of simplified construction, the parts of which can be readily manufactured and assembled at low cost.

Another object of the invention is to produce a knife with a one piece handle which can be made, for example, by die casting.

Another object of the invention is to produce a knife in which the spring is not fastened to the sides of the handle, but is retained in place in the handle without direct 2 fastening by means of lugs on the handle and the knife blade.

Other objects and advantages will appear as the description proceeds.

Knives, of which the following a specifi- Referring now to the drawings, which il-' 0 lustrate a preferred embodiment of the in vention:

I Figure 1 is a disassembled perspective view of the major parts of the knife.

Figure 2 is a part sectional view of the assembled knife.

In the embodiment illustrated, the knife consists of four parts, a handle 1, spring 2, blade 3 and the retaining or pivot pin 4 for holding the blade and spring in place in the handle.

The handle 1 consists of the two sides5, the back 6 and the end 7, which are all in one piece and formed preferably by die castin V lhe back 6 is provided with two integral v upstanding projections 8 and 9, as illustrated, and the sides 5 are provided with a hole 10 for the pivot pin 4. 'The hole 10 may be formed in the casting operation or may be formed in any suitable way after the casting is removed from the die.

The spring 2 consists of a straight piece of spring metal which is tapered off at the 1 rear as at 11, and'provided with thenotch as 12, the end 18 being auitably shaped to co= legs. Serial No; 650,327.

operate with the heel of the blade 3. It will be s e tha t sp 2 i f p onstruction which canbe easily formedfas for example by a stampingoperation.

The blade 3 consists of the ordinary cutt ng portion 14: and the heel 15whichis cut" away at 1 6 to provide a bearing place for the end 1?; of spring 3 when the parts are assembled and the blade open; The hole for the pivotpi'n is indicated at'17 v assembling the arts the end 11 of the o iln -isfl d. nder t e Proje tion-@ 5 bf t is die cast handle 1, and the spring dropped between the sides 5 where it takes the posi tion illustrated in Fig. 2, with the projection 9 extending into the notch 12. The blade is then inserted between the sides 5 and the pivot pin 1 pushed through the holes 10 and 17 and fastened in place. The projection 9, extending into the notch 12, provides a bearing point or fulcrum; and, as the rear of the spring is held under the projection 8 the insertion of the blade forces down the end 18 and forces the back of the spring against the back of the handle as at 18 so as to provide the necessary spring pressure of the end 13 against the heel 15 of the blade. The spring is automatically retained in place by the blade, making it unnecessary to rivet or pin the spring between the handles, as in the ordinary pocket knife construction.

'It will be seen that we have provided a knife in which all the parts are of simple construction and can be formed at a low cost, and which can be readily assembled to form the complete article by unskilled labor.

In the assembled knife, the springis almost entirely surrounded by the handle portion, which may be 'a'noncorrosive alloy or be protected by aplating, whereby the spring is protected from perspiration and can be carried in ones pocket without rusting. r

Various modifications may be resorted to, without departing from the spirit of thein vention or the scope of the appended claims, and parts of the device may be used without others. I l

What we claim is:;

1; A pocket knife includingan integral handle, a lug on the handle and an undercut beveled recess, the'lug and recess being inclined toward the open end of the handle for pivoting the blade within. the handle inengagement with said spring, a spring with a notch in the back thereof and a beveled 7 end enclosed by the handle and fitting over the lug and under the beveled recess, a blade and pivot pin for holding the blade and prisingintegral sides, back and end, a pair of upstanding lugs on the back of the handle sloping toward the open end thereof, a recess between the rear lug and the back, a spring adapted to fit over the front lug and into'said recess, a blade and a pivot pin for pivoting the blade within the handle, in engagement with said spring;

' 3. A pocket knife including a one-piece handle withintegral lugs, located intermediate theiendsthereof, extending inward from the backand sloping in the direction of the open end of the handle, a spring shorter than the handle, engaging the lower surface of one lug and resting upon the upper surface of the other lug, a blade engaging one end of the spring and a pivot pin for 7 pin for holding the blade and spring in place.

5; A pocket knife, including a die cast handle, comprising integral sides, back and end, a lug on the back of the handle and an undercut beveled recess, the lug and the recess sloping toward the open end of the handle.

In testimony whereof we have aflixed our signatures to this specification.

, HERMAN DOEHLERQ MARCUS STERN.

Certificate of Correction.

It i hereby certified that in Letters Patent No. 1,476,030, granted December 4, i 1923, upon the application of Herman H. Doehler and Marcus Stern, of Brooklyn, New York, said Stern assignor to said Doehler, for an improvement in Knives, an error appears in the printed specification requiring correction as follows: Page 1, lines 109 and 110, claim 1, strike out the Words for pivoting the blade within the handle, in engagement with said spring and that the said Letters Patent should be read with this correction therein that the Same may conform to the record of the case in the Patent Office.

Signed and sealed thi 8th day of January, A. D., 1924.

[SEAL] KARL FENNING,

' Acting Commissioner of Patents.

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