US1282278A - Nutcracker. - Google Patents

Description

F. A. NEUMANN.

NUTCRACKER APPLICATION FILED ocr. 25. 19:1.

Patented Oct. 22, 1918..

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nsrrsn s resns ra'rnnr orrio FRANK A. NEUMANN, OF CHICAGO, ILLINOIS, A'SSIGNOR TO CASSADY-FAIRBANK MANUFACTURING COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

NUTCRACKER.

Specification of Letters Patent.

Patented Oct. 22, 1918.

Application filed October 25, 1917. Serial No. 198.370.

To all whom it may concern.

Be it known that I, FRANK A. NEUMANN, a citizen of the United States, residing at Chicago, in the county of Cook and State of Illinois, have invented new and useful Improvements in Nutcrackers, of which the following is a full, clear, and exact description. I V

My invention relates to nut crackers, and particularly to the kind employing two corresponding arms or levers pivotally connected together at one end between which the nuts are placed and cracked.

The object of my invention is to provide a link member out of sheet metal which is so shaped that it not only serves as the medium for connecting said arms, but also limits the spread or extent of separation thereof and supplies a pocket for a transversely disposed coil spring that keeps said arms spread apart. This improved construction avoids the necessity of any machine work and is very simple, cheap and durable, substantially as hereinafter fully described, and as particularly pointed out in the claims.

In the drawings:

Figure 1 is a side view of my invention.

Fig. 2 is a transverse section taken on dotted line 2-2, Fig. 1.

Fig. is a vertical section taken on dotted line 33, Fig. 2.

Fig. 4 is a top edge view of the same.

Fig. 5 is a plan view of the templet from which the link of said nut cracker is made.

As shown in the drawings, A, A, indicate the two arms or handles of my improved nut cracker. These are suitably designed at one end to enable them to be firmly grasped in the hand, and are connected by my improved link at their other end.

The templet shown in Fig. 5 of the drawings consists of an elongated rectangular piece of sheet metal B, each longitudinal edge of which has a pair of corresponding lugs Z), 6, (which, as will hereinafter be more fully explained, serve as pivotal lugs) projecting sidewise therefrom at equal distances from the center of length of the templet, and have rectangular tongues a, a, cut in the portions thereof between the transverse planes of said lugs and the ends of the same. which tongues have their free transverse edges that aline with the transverse edges of the lugs nearest the ends of the templet.

In shaping the link from this templet the central portion of the latter between the dotted lines 0, o, is provided with a transverse groove d, as shown in Fig. 3 of the drawings, and then the portions between said dotted lines 0, c, and the ends of the templets are bent down on either side of said groove until they are parallel to each other, thus bringing the flat surfaces of lugs 41, at, opposite each other. The flattened ends of arms A, A, are placed between these lugs and are pivotally connected thereto by trunnions e, e, that are, preferably, integral with said flattened ends. The ends of these trunnions are extended through the central openings in said lugs and swaged to form heads that prevent their withdrawal. Groove (Z not only constitutes the spacing element between the sides of the links, but its end edges constitute abutments against which the inner portions of the edges of the arms extending beyond the trunnions hear when said arms have spread apart the desired distance, and thus limit the extent of said spread.

At the time the templet is stamped out the tongues a, a, are bent inward and the ends of the templet are also bent in the same direction. Thus when the portions of the templet forming the sides of the link are brought opposite to each other in parallel relation, the said tongues and the'loWer edges of the link form a transverse somewhat tubular shaped seat in which a coiled expansion spring D is placed, whose length is such that its ends extend beyond said seat and, when the parts of the nut cracker are properly assembled, press outward against said arms A, A, and are adapted to return said arms to their separated positions after thev have been squeezed out.

What I claim as new is 1. A nut cracker comprising two arms, and a. link formed from a rectangular sheet metal templet each longitudinal edge of which has a pair of lugs projecting therefrom and is provided with a central transverse groovebetween said lugs which latter when the portions of the templet on each side of said groove are bent parallel to each other constitutes the lugs to which the corresponding ends of said arms are pivotally connected.

2. A nut cracker comprising two arms, a link consisting of a single strip of sheet metal bent double to the extended ends of the sides ofwhieh the correspondingends of said arms are pivoted and have a limited outward movement, and a coil expansion S ides: thereofprovidedv with tongues, that are bent inward and together with said lower edges of the llnk form a retannng seat for said spring.

3'. A nutcracker comprising two arms, a

link consisting of a single piece Of sheet metal and provided with a lengthwise groove. in'the bend thereof and with pivotal lugs extending from the end edges ot the copies of this patent maybe obtained for nut cracker the lower edges: of the sides of parallel sides between wl'iich'the corresponding ends of said arms are pivoted, and a coil expansionspring in; the, crotch of said 20 said link being bent toward each other and the sides thereof provided with tongues that 1 are bent inward and together with said loweredges of the link form a retainingseat for said spring.

In witness whereof I have hereunto set my hand this 16th day of October; 1917.

FRANK AL. N'EUMANX;

five cents each, by addressing the Commissioner of Patents,

Washington, D. 0.

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