US416098A - filiateault - Google Patents

Description

2 Sheets-Sheet 1.

(No Model.)

w. PILIATRAULT. TRACTION CABLE FOR DRAW BRIDGES.

Patented N0v. 26, 1889.

N. PETERS. Phelwunmn her. Walhinglnn. BIC.

(No Model.) 2 Sheets-Sheet '2.

W. IEILIATRAULT.v TRAGTION GABLE POR- DRAW BRIDGES.

No. 416,098. Patented Nov. 26,1889.

Nv PETERS. PhOID-Lilhflgrnphch Washmglon. n. c

UNITED STATES PATENT OFFICE.

IVILFRID FILIATRAULT: OF CHICAGO, ILLINOIS, ASSIGNOR OF ONE-HALF TO CHARLES CHEDRON AND JOSEPH DONLON, BOTH OF SAME PLACE.

TRACTION-CABLE FOR DRAW-BRIDGES.

SPECIFICATION forming part of Letters Patent No. 416,098, dated November 26, 1889. Application filed September 23, 1889. Serial No. 324.803. (Ho model.)

To all whom it may concern.-

Be it known that I, WILFRID FILIATRAULT, 'a citizen of the United States, residing; at Chicago, in the county of Cook and State of Illinois, haveinvented certain new and use ful Improvements in Operating Traction- Cables over Draw-Bridges, of which the following is a full, clear, and exact description,

that will enable others to make and use the IO same, reference being had to the accompanying drawings, forming a part of this specification.

This invention relates to an improved arrangement for running traction-cables over swing-lmidges, whereby the main cable can be carried across and operated continuously, whether the draw is opened or closed.

Figure 1 is a diagram in perspective, showing the run or arrangement of the cable, the relative position of the bridge and approaches at each side being indicated by dotted lines; Fig. 2, a plan as it would appear with the flooring of the bridge removed; Fig. 3, a horizontal section in plane 3, Fig. 4; and Fig. 4, a vertical section in plane 4, Fig. 2, of the cable-tube located vertically in the central bridge-pier.

Referring to the drawings, A represents the main cable crossing the bridge in one direction, and B the return runningin the opposite direction, the run of the cables being indicated by arrows.

The cable A from the street-conduit first runs over the sheave a, located in the abutment adjacent to the end of the bridge, down through the vertical tube C to and underneath the vertical sheave a, and around the horizontal sheave a placed at right angles to the sheave a. This brings the cable on a level With the river-bed, and is next conducted through the horizontal tube D to the middle of the central pier E. (Indicated by the dotted circle in Fig. At this point the cable passes under the vertical sheave a up through the vertical tube F and over the vertical sheave a back to the endof the bridge on that side from which it first started, and then returning around the horizontal sheave a and running to the oppo- 5 site or farther end of the bridge, and passing around the horizontal sheave a, and then back to the central tube F and over the sheave C67,; down through the same to the lower end again, and underneath the vertical sheave a and through the horizontal tube G, to the opposite side of the stream from Which it started. IVhen the cable leaves the tube C, it passes around the horizontal sheave a under the vertical sheave a and then up through the tube H and over the vertical sheave a into the street again.

In operation the cable is dropped from the grip before the car passes onto the bridge, and the part (L of the cable on the bridge picked up at the proper time to afford a continuous passage.

The carrying guide-sheaves of the returncable B are represented in their order, as b b b b b U 19 b b b b, the arrangement being precisely the same as the sheaves of the companion cable A. By this arrangement the operation of the cable is continuous, whether the draw is open or closed. The bridge should always be turned back or closed in the same direction in which it was opened, and not swung clear around.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

1. In a tractioircable system, the arrangement herein described for crossing swingbridges, which consists in running the main cable downwardly through the abutment on one side of the stream, then along the riverbed in a horizontal plane to the middle of and up through the central pier and back to the end of the bridge under the flooring on that side from which. it started, then running to the opposite end of the bridge and back to and down through the central pier, and then continuing in a horizontal plane to the farther side and then up to and out into the street again, substantially as herein described.

2. In a traction-cable system for crossing swing-bridges, the combination, with the bridge, of the cable, the vertical tube C, the horizontal tube D, the vertical tube F, located in the central pier, the horizontal t-ube G, the vertical tube II, and the series ofcarrying or guide sheaves, substantially as described.

IVILFRID FILIATRAULT.

Witnesses:

L. M. FREEMAN, J. B. DONALSON.

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