US23565A - Chair for railroad-bars - Google Patents

Description

UNITED STATES PATENT onirica.

HENRY H. GRAHAM, OF PATERSON, NEW JERSEY.

CHAIR FOR RAILROAD-BARS.

To all 'whom 'it may concern:

Be it known that I, HENRY I-I. GRAHAM, of Paterson, in the county of Passaic and State of New Jersey, have invented, made, and applied to use a certain new and useful Improvement in Chairs for Railroad-Bars; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawing, making part of this specification, wherein- Figure l, is a plan of the chair and ends of the rails, Fig. Q, is a vertical section of the chair at the joint, and Fig. 3, represents the end of one of the rails.

Similar marks of reference denote the saine parts.

In the construction of chairs for railroad bars various devices such as fish bars, and side supporting chairs have been used, and connected by bolts or rivets; these are difficult of application, and not durable under the operation of the wheels, and the rails are constantly drawing the spikes out of the cross ties and becoming loose.

The nature of my said invention consists in a chair adapted to take a bearing against the side and bottom of the rails in combination with a horizontal binder and key spike, by means of which the rail and chair are firmly drawn and clamped together and the whole is secured to the cross tie. The spikes are relieved from the loosening operation of the rail, and the ends of the rails are connected and firmly supported in such a Inanner that the wheels passing do not produce any jar, or the rails become themselves battered from being insecure.

In the drawing a, a, represent the ends of two rails abutting against each other and resting on the bottom part b, and against the side part c, of the chair; this side part c, is of a shape to conform to the rail, and rises to the level of the top, and occupies the outer side of the rail as usual. Each end of the rail is notched as shown in Fig. 3, and a horizontal binder c, is inserted through the mortise thus formed in the meeting ends and also through a corresponding mortise in the side c, of the chair. This binder d, has ribs on its upper edges entering` the notches (l) in the mortises (Fig. 3) to prevent the rails sliding olf said horizontal binder, only sufiicient play being allowed at this poi'nt for contraction and eX- pansion.

The binder (l, has a flat or fish shaped head on the inner side of the bars a, a, and a mortise through its body in such a position as to receive the wedge shape spike e, which passes down outside of and against the vertical side c, of the chair, and through a mortise in the base of said chair into the cross tie, and said spike being formed tapering at the part 2, draws the binder d, tightly against the rail and the rail against the side c, of the chair in such a firm manner that no separation can take place unless the chair breaks, and any motion in the parts tends to tighten the binder either by forcing the spike farther into the wood, or if tending to draw the spike out, the wedge shape spike taking the strain acts to bind the parts together; and any wear or working of the parts is compensated by driving the spike c, farther into the cross tie.

f f are spikes holding down the inner edge of the rail and the rail at this point need not be notched as now usual, because any creeping Vof the rails is prevented by the binder d.

The spikey e is formed with cross notches 3, 3 on the side next the part c of the chair, and notches 4, 4, on the other corners, so that the spike can not be withdrawn from the wood except by a very greatforce, but said notches being beveled upward drive into the wood with great ease. The notches 3, 3, may be so placed as to take beneath the edges of the niortise in the chair.

Having thus described my said invent-ion and the advantages thereof I wish it to be understood that I do not claim a chair taking the side of the rail, and coming np to the top thereof, neither do I claim a cross ke)7 or bolts uniting the rail by the use of fish bars or similar devices; but I do not know of any previous instance in which the hori zontal binder and vertical key spike have been used to bind the ends of the rails into a chair having a vertical side and fitted to receive the rail; therefore What I claim as my invention and. desire In Witness whereof I have hereunto set i" to secure by Letters Patent, is-

1n v signature, this twenty-irst day of Feb- The horizontal binder d, and vertical Wedge I'uary, 1859. e, constructed substantially as set forth, in HENRY H. GRAHAM. 5 combina-tion with the chair that receives and sustains the ends of the rails in substantially LEMUEL W. TERRELL, the manner descrlbed and shown. CHAs. H. SMITH.

Witnesses

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