US261570A - John sullivan - Google Patents

Description

(No Model.) l

J. SULLIVAN.

WEDGE BOLT FOB. LO'GOMOTIVES.

Patented July 25, 1882.

Z052' f77@ SMS.

NrTED STATEsf PATENT Orrrcl JOHN SULLIVAN, OFF ELMIRA, NEW YORK, ASSIGNOR OF TWO-THIRDS TO LA MOTI AMES AND JOHN E. DOHONEY, BOTH OF SAME PLAGE.

WEDGE-BOL'T FOR LOCOMOTIVES.

SPECIFICATION forming part of Letters Patent No. 261,570, dated July v25, 1882.

Application filed May 22, 1882. (No model.)

. To all whom it may concern:

- motives, in which the bolt passing through a washer and a threaded shell and havinga nut l at the bottom isrendered adjustable, so as to hold the wedge rigidly in its place.

The objects of myimprovements are, rst, to hold the adjustable wedge firmly and rigidly inits positionand preventitsgettingstuckg77 second, to prevent any lost motion, wearor play between the wedge and the bolt; third, to secure a greater surface-bearing between the wedge and the bolt; and, fourth, to enable it to be readjusted, tightened, and set without removing it from its place. I attain these objects by the mechanism illustrated in the accompanying drawings, in which- Figure l 1s a front view vertical section of the entire bolt and its bearings; Fig. 2, a side view vertical section of the entire bolt and its bearings, showing tapering wedge; Fig. 3, a perspective view of the bolt with the nut; and Fig. 4, a perspective view of the threaded shell, washer, and jam-nut.

. Similar letters refer to similar parts throu ghout the several views.

The bolt a consists of a rod having a head at the top which lits into a slot cut through the wedge, as shown in Fig. l. The rod passes through the washer c, thence down through the threaded shell b, and is cut at the bottom with threads for the reception of the nut d, by which the head of the bolt is drawn iirmly down to the lips of the wedgeff.

The shell bis threaded, as in the ordinary wedge-bolt, and passes up through the brace or binder g, and has a six-squared head at the bottom for the wrench and a concave surface at the top to fit the ball-washer c, which washer is convex on its lower side, so as to adjust itself to the concave surface of the shell,

and is straight on the upper side, or the side that meets the bottom of the wedge.

The jam-nut e-acts simply as a protection between the lower edge of the binder and the head of the threaded shell.

In Fig. 2 the binder g, the driving-box c', and the pedestal-jaw h are partly illustrated to show the relation of the bolt to the other parts of the machinery.

Heretofore wedge-bolts have been composed of only one piece, and by reason of the constant working of those parts which come in contact with the wedge they soon become worn,`

the engine to be sent into the shops for repairs; and in case that nothing was broken by reason of the looseness of the parts, still the engine had frequently to be sent in to have the bolt reiitted at'considerable trouble, labor, and expense; but by means of my invention the engineer is enabled by a single turn of his wrench to adjust the wedge to any desired position and to tighten the bolt so as to hold the wedge rigidly in its position, thus preventing any lost motion, wear, or play between the head of the bolt and the lips of the wedge; and in case it should become worn he can in an instant tighten the head of the bolt to the Wedge far more securely than the old-fashioned bolt ever could be fitted, and it is equally true with regard to square or rounded boltheads.

I am aware that prior to my invention wedge-bolts for driving-boxes have been made washer, threaded shell, and nut at the bottom,

and used. tion of the Wedge-bolt; but

5 sire to secure by Letters Patent, is

oomotives, of the bolt a, the threaded shell b,

Therefore I do not claim the invenby which combination the bolt is rendered adjustable, so as to secure :t perfectly tight joint What I do claim as my invention, and debetween the head of the bolt and the wedge, 15

and to hold the Wedge rigidly in its place, sub- 1. The combination, in a Wedge-bolt for lostantially as set forth.

JOHN SULLIVAN.

and the nut d at the bottom, all as substantially set forth.

for locomotives, the combination of a bolt,

Witnesses:

H. A. CORELL,

2. In a driving-box adjustable Wedge-bolt J Aeon SCHWARTZ.

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