US450739A

US450739A - Metallic railway-tie

Info

Publication number: US450739A
Authority: US
Publication date: 1891-04-21
Anticipated expiration: 1908-04-21

Description

(No Model.)

T. R. DUNNING. METALLIC RAILWAY TIE.

Patented Apr. 21, 1891;

92 6273 Scs:

NITED STATES PATENT OFFICE.

THEODORE R. DUNNING, OF MIDDL 1TO\YN, NElV YORK.

M ETALLIC RAI LWAY-TIE.

SPECIFICATION forming part of Letters Ratent No. 450,739, dated April 21, 1891.

Application filed December 17, 1890. Serial No. 375,054. (No model.)

To on whom it may concern:

Be it known that I, THEODORE R. DUNNING, a citizen of the United States, residing at Middletown, in the county of Orange and State of New York, have invented certain new and useful Improvements in Railway-Ties and Rail- Fastenings; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertaius to make and use the same, reference being had to the accompanying drawings and letters of reference marked thereon, which form a part of this specification.

Like letters refer to similar parts throughout the several views.

My invention relates to metallic railwayties and the means of securing rails thereto; and it has for its object to improve the construction of metallic ties and the means heretofore adopted for securing the rails.

To this end the invention consists in the construction and arrangement and combination of parts more fully pointed out hereinafter, and afterward defined by the claims.

Referring to the drawings, Figure 1 is a perspective view of a railway-tie embodying my improvement. Fig. 2 is a section of the tie, showing the double clamp and the manner in which it rests on the beam of the tie. Fig. 3 is the double spring-steel wedge for holding the clamp-heads on the rail-flanges. Fig. 4 is the flanged rail-brace to be used on curves of the road.

The tie is made of a plate of steel or other metal,whichis bent to form an inverted trough at each end and an open trough in the mid dle of the tie. The ends T are flanged vertically, and the parts W are flanged at an angle of about forty-five degrees. The edges of the top table A are flanged nearly vertical at N, and the sloping parts \V have their corners P flanged, so as to rest on the flanges N. Before the plate is bent the openings E are made for the necks of the clamp, the openings or slots X for the I-beam to rest in.

The double clamp shown in Fig. 2 may be cast of malleable metal or turned from a bar of steel. The clamp is placed by inverting the plate A 13 A and then inserting the clampheads into the openings E. Then the I-beam is inserted into the openings X, and by sprin iug the table A a trifle the beam is carried through all the openings X until the notches R inclose the clamp. The E opening on the outer side of the rail is so that when the neck of the clamp is therein and the rail-flange is against it the ordinary gage is attained; but if any variation of gage is desired, as on curves, clamps with necks of a different thickness are provided. \Vhen the fish-joint flange projects over the rail-flange, such ties have their openings wider apart. The rail is laid by swinging back the clamp-head on the inner side of the rail and pushing the rail-flange under and against the outer clam p-head, after which the inner clamp-head is swung back again until it engages the inner rail-flange, when the wedge is driven into the opening behind the clamp -head, so that it is held firmly. The spring-steel wedge, of one-fourth inch thickness, will cause its endsJ J to spring apart with such power as to hold its place firmly in the opening. It will be understood that the opening E on the outer side of the rail is deep and wide beneath the rail limits, and that the notch R is a little wider than the clamp, so as to permit the inner clamphead to be swung backward. The center of the clamp is thin where it rests in the notch R. Clamps, when fish-joints are used, may have longer necks. A tie of this type has valuable features, in that the beam distributes the weight partially 011 the bottom 13; but mostly it is distributed in a general manner over the top of the trough A. The central trough when filled with ballast will give the desired weight.

This type of tie may have its parts A B A made of very light metal.

Having thus described my invention and set forth its merits, what I claim to be new, and desire to secure by Letters Patent, is-

1. The tie forming the inverted troughs A A,in combination with the centralopen trough B, and having the three troughs A, A, and B parallel to the line 0 O,and with the vertical ends T and sloping parts XV, having the long vertical slots or openings X, adapted to receive an I or vertical beam, and with the ends T and the top parts A and the sloping parts W and the bottom 13 made of one piece of metal, substantially as set forth.

2. The double clamp O H O, with its heads O 0 adapted to engage the rail-flanges at right angles, while said heads 0 0 project obliquely or diagonally from the central part H, and being made of one piece of metal, substantially as described.

3. The double clamp C H O,With its heads 0 0 adapted to engage the rail-flanges at right angles, and being made of one piece of metal, substantially as described.

4. lhe combination of the tie with the beam in the openings X and with the openings E, formed in aline diagonal to the line 0 O, and with the inner opening E describing part of a circle, and with the central part II of the clamp bearing against the under side of the tie in a course diagonal to the line 0 O, and with the clamp having the necks of the clamp- THEODORE R. DUNNING.

Witnesses:

JOHN C. R. TAYLOR, ARCHIBALD TAYLOR.