US482765A

US482765A - sttjpakoff

Info

Publication number: US482765A
Authority: US
Publication date: 1892-09-20
Anticipated expiration: 1909-09-20

Description

2 Sheets-Sheet 1.

(No Model.)

S. H. STUPAKOFF.

RAILWAY CHAIR.

No. 482,765. Patented Sept. 20, 1892.

INVENTOR WITNESsES (No Model.) 2 SheetsSheet 2.

S. H. STUPAKOFF.

RAILWAY CHAIR.

No. 482,765. Patented Sept. 20, 1892.

UNITED STATES PATENT OFFICE.

SIMON H. STUPAKO FF, OF PITTSBURG, PENNSYLVANIA, ASSIGNOR T0 v CHARLES H. READ, OF SAME PLACE.

RAILWAY-CHAIR.

SPECIFICATION forming part of Letters Patent No. 482,765, dated September 20, 1892. Application filed January 15, 1892. Serial No. 418,184.. (No model.)

T0 to whom, it may concern:

Be it known that I, SIMON H. STUPAKOFF,

of Pittsburg, in the county of Allegheny and State of Pennsylvania, have invented a new and useful Improvement in Railway-Chairs, of which the following is afull, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which Figure 1 shows in perspective view a metal chair for railways. Fig. 2 is a similar view showing a chair of modified construction. Fig. 3 is a perspective view of a second modification. Figs. 4 and 5 are top plan and side elevational views of a third modification. Fig. 6 is a perspective detail view of a modification.

Like symbols of reference indicate like parts in each.

The object of my invention is to improve the construction of railway-chairs of that class in which the rail is held by two diagonally-located tongues struck up from the body of the chair, which permit the chair when placed beneath the rail to be adjusted to clamp the rail by turning, as will be well understood by those skilled in the art. Such chairs if constructed with tongues of the same thickness as the body lack rigidity in the tongues and are therefore defective, and although various attempts have been made to remedy this all have been for some reasons objectionable.

My invention consists in a forged or stamped railway-chair having its diagonal tongues provided with upwardly-projecting ribs, and also in the method by which such ribbed chairs are made. These ribs, which ore formed in the operation of stamping the chairs, add to the rigidity of the tongues and enable them to hold the rail without danger of being displaced by bending, but do not add to the weight and present no practical difficulties to the manufacturer. It will be understood that the ribs in place of being in the form of an outer flange, as shown, may take the form of raised ribs between the side edges of the tongues, these having the same strengthening efiect, and by the word rib in the claims I intend to cover either form. This form of my invention I show in Fig. 6.-

Referring now to Fig. 1 of the drawings, 2 represents the body of the chair, which is of the usual [1 form, having lateral flanges 3 at the base to enable it to be spiked to the ties. 4 4 are the diagonally-situate tongues, which are struck up from the body of the chair when it is stamped in the dies. 5 5 are the upwardly-projecting marginal flanges formed on the tongues and preferably extending down somewhat on the body of the chair. These flanges I form by making corresponding projections and cavities in the stamping-dies.

The form of my improved chair which I illustrate in Fig. 2 is like that above described, except that in addition to the outwardly-proj ecting flanges on the tongues 4 I provide the remainder of the chair with inwardly-projecting flanges 6, which increase the rigidity and strength of the same.

The above forms of chairs require the use of specially-rolled sections; but the preferred form of my invention, which I illustrate in Figs. 3 and 4, is made from a single flat rectangular blank. In the making of this form I take a flat rectangular piece of metal and punch the slits for the two tongues therein. I then place the blank between dies, which bend the flat piece into the chair form, bend up the tongues, and form the projecting ribs or flanges upon the tongues and chair-body. In forming the flange 5 upon the tongue a twist is made, as at 7, to bring the flanged part at right angles to the tongues. The flange 6 upon the chair also gradually merges into the chair proper, as at 8. In the form of Fig. 3 two parallel ribs are formed in thechair-body, extending partially down the sides of the chair, while in Fig. 4 I illustrate a single diagonal rib across the chair-top, extending toward diagonally-opposite corners between the tongues. These ribs upon the body strengthen it and enable metal of less thickness to be employed.

I claim- 1. A railway-chair having ribbed tongues struck up from the body of the chair, substantially as described.

ate tongues struck up from the body of the chair, the chair having ribs forced out from and of substantially the same thickness as the top and sides of the chair, substantially as described. Y

5. A railway-chair having diagonally-situate ribbed tongues struck up from the body of the chair, the remainder of the chair hav ing inwardly-projecting marginal flanges,

substantially as and for the purposes described.

6. The method of making rail-chairs, consisting in cutting diagonally-opposite tongues in a rectangular blank and then bending the blank into chair form and forming ribs upon said tongues, substantially as and for the purposes described.

7. The method of making rail-chairs, consisting in cutting diagonally-opposite tongues in a rectangular blank, then bending the blank into chair form, and forming marginal flanges upon the edges of the tongues, substantially as and for the purposes described.

8. The method of making rail-chairs, consisting in cutting diagonally-opposite tongues in a rectangular blank, then bending the blank into chair form, and forming marginal flanges upon the edges of the tongues and chair-body, substantially as and for the purposes described.

In testimony whereof I have hereunto set my hand this 9th day of January, A. D. 1892.

SIMON H. STUPAKOFF. Witnesses:

W. B. Conwm, H. M. CORWIN.