US1570715A - Rivet construction - Google Patents

Description

Jan. 26 1926. 1,570,715

E. B. .STIMPSON RIVET CONSTRUCTION Filed Sept. 28. 1921 2 Sheets-Sheet 1 z invent-oz I 351 Gum/neg Jan. 26,1926. 1,570,715

E. B. STIMPSON RIVBT CONSTRUCTION Filed Sept. 28, 1921 2 Sheets-Sheet 2 Patented Jan. 26, 1926.

UNITED .STAIATES EDWIN B. STIMPSON, OF BROOKLYN, NEW YORK, ASSIGNOR T0 EDWIN B. STIMPSON I COMPANY, OF- BROOKLYN, NEW YORK.

RIVET CONSTRUCTION.

Application filed September 28,1921. Serial No. 503,863.

material.

These and other objects are attained in the constructions illustrated in the accompanying drawings which show a few of the possible forms the invention may take.

Figures 1, 2 and 3 are side and sectional views respectively illustrating .a form of slotted member forming one part of the rivet.

Figures 4 and 5 are side views of another 1 form of slotted member, differing from the first in that the slot is of constant instead of varying or tapered width.

Figures Sand 7 are side views of the other cooperatingmember of this style ofrivet.

Figure 8, is a broken sectional view illustrating the two members of the rivet as set in the material or parts which they are to hold together. p

Figure 9 is a showing in side elevation and plan of a pin type of stud, and

Figure 10 is a broken section illustrating the cooperation of the same with the split member of the rivet.

Figure 11 is a side view of this rivet in its completed state and Figure 12' is a section 011 line 12-12 of Figure 11.

Figures 13 and 14 are side views illustrating the cooperating partsof another and somewhat simpler style of rivet.

Figure 15 is a side view showing the parts of this style of rivet in their clinched condition.

Figure 16 is a similar view illustrative of a modification adapted to turn the points in opposite directions instead of in the same direction, as in Figure 15.

In the forms of the invention disclosed in Figures 1 to 12, one member of the rivet is in the form of a headed stud 17 having a substantially cylindrical shank, split or slotted as indicated at 18 to provide the prongs 19, 20. a This slot may be either tapering as shown in Figure 1, or have parallel sides as indicated in Figure 4;, the advantage of the first beingthat a wedging eflect is ob-' tained, resulting in a greater spreading of the prongs.

At the inner end of the slot in the shank, a shoulder 21 is left, inclined from one side to the opposite side of the shank and arranged preferably at a suliicient angle to provide agood chisel point at the outer terminus of the same for cutting cleanly intothe material, as indicated particularly at 22 in Figure 3.

Cooperating with the split stud is a second headed stud member 23 having the intermediate portion of the shank thereof of reduced thickness, as indicated at 24 to enter the slot between the prongs of the first member. At the base or juncture of the reduced portion with the main, full size part of the shank, there are provided shoulders 25 inclined, as in the caseof' the first stud, at a relatively sharp angle and ex tending along the line of incline from one side to the opposite side of the shank, so as to provide .an inclined wedging face equal in extent to the full width or' thickness of the shank. These inclined shoulders 25'- may extend the same or opposite directions at the opposite sides of the shank so as to deflect the prongs 19, 20 of the first member either in the same or in opposite directions.

The double and the single prongs of the two studs are preferably pointed or sharpened somewhat, as I have indicated at 26, so as to more readily penetrate the material and so as to turn readily over the inclined shoulders, regardless of which way the shoulders may be faced in putting the two parts of the rivet together.

In the form of the invention shown in Figures 9 to 12, the second member 27 of the rivet has a concentrically reduced shank por tion 28 with an annular inclined shoulder The form of my invention shown in Figs. 9 to 12 is shown and claimed in a divisional application which has matured into Patent No. 1,511,688, dated October 14, 1924.

In the form of the invention disclosed in the remaining views, each of the cooperating stud members 31 and 32 is reduced at one side thereof, for approximately half its thickness, to leave a single prong 33 having at the base thereof a shoulder 34 inclined as before across the full width of the shank. The shoulders of the companion studs may be inclined in reverse directions or parallel, as indicated in Figures and 16 respective ly so as to deflect the points either both to one side or to opposite sides of the rivet body. Another distinction in this last described form of rivet is that the shanks of the cooperating members are of rectangular shape, substantially square in cross section, instead of round as in the preceding forms.

What I claim is:

1. A rivet comprising cooperating headed studs having shanks cut away to provide prongs having flat contacting faces and each having an inclined bending, shoulder at the base of a prong the face of the shoulder being perpendicular to the fiat contacting face of the shank, and arranged with the inclined length thereof extending the full thickness of the shank across from one side to the opposite side thereof.

2. A rivet stud slotted to provide prongs and having a single bending shoulder having a plane surface extending transversely and diagonally with respect to the longitudinal axis of the stud and extending between the prongs across the shank from one side entirely to the opposite side thereof and a companion stud having a portion reduced in thickness to enter between the prongs of the first stud and inclined shoulders at the base of the reduced portion to turn the prongs of the first stud.

3. A rivet stud slotted to provide prongs and having a single bending shoulder having a plane surface extending transversely and diagonally with respect to the longitudinal axis of the stud and extending between the prongs across the shank from one side entirely to the opposite side thereof and a companion stud having a portion reduced in thickness to enter between the prongs of the first stud and a shoulder at the base of said reduced portion extending on an incline across the full width of the stud.

A two piece rivet comprising companion studs having cut away portions and shoulders at the bases of said cut away portions extending diagonally across the full width of the studs.

5. A two piece rivet comprising companion studs having shanks with cut away portions and shoulders at the bases of said cut away portions and with a shoulder on one of said members extending diagonally the full width of the shank of said member.

6. A rivet having a shank portion reduced in thickness to provide a clinching prong, the base end of the prong terminating in a shoulder extending diagonally across the shank to form an acute angle with one lateral margin thereof.

7. A rivet having the outer end of its shank portion reduced in thickness to form a clinching prong, and the base end of the prong terminating in a shoulder extending diagonally across the shank at an inclination that provides a cutting edge at a lateral margin thereof.

8. A two piece rivet comprising a stud having a shank slotted to provide double clinching prongs, and a stud having a single prong shank adapted to be received between the double prongs of the other stud, and inclined portions on the studs for clinching the ends of the prongs.

In testimony whereof I affix my signature.

EDWIN B. STIMPSON.

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