US556382A

US556382A - Street-car bridge for protection of fire-hose

Info

Publication number: US556382A
Authority: US
Publication date: 1896-03-17
Anticipated expiration: 1913-03-17

Description

' 2 Sheets-Sheet 1.

H S. B. SWEENEY & B. E. CLARK. STREET GAR BRIDGE FOR PROTECTION OF FIRE HOSE. No. 556,382. Patented Mar. 17', 1896 (No Model.)

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S. B. SWEENEY & B. F. CLARK. STREET GAR BRIDGE FOR PROTECTION OF FIRE HOSE. No. 556,382. I Patented Mar. 17,1896.

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\ UNITED STATES PATENT OFFICE.

SAMUEL B. SXVEENEY AND BENJAMIN F. CLARK, OF ZIONSVILLE, INDIANA.

STREET-CAR BRIDGE FOR PROTECTION OF FIRE-HOSE.

SPECIFICATION forming part of Letters Patent No. 556,382, dated March 1'7, 1896.

Application filed August 10, 1895. Serial No. 558,948. (No model) To all whom, it may concern.-

Be it known. that we, SAMUEL B. SWEENEY and BENJAMIN F. CLARK, residing at Zionsvillc, county of Boone, State of Indiana, have invented a new and useful Street-Oar Bridge for Protection of Fire-Hose, of which the following is a specification.

The objects of this invention are, first, to prevent a blockade of street-car traific and secure protection of fire-hose; second, to have a street-carbridge of durability, containing no wood, composed entirely of steel, and containing no taps, bolts, or screws that may become lost; third, to have a street-car bridge of such a weight as to enable it to be conveyed on a street-car without inconvenience to passengers. lVe attain these objects by the mechanism illustrated in the accompanying drawings, in which Figure 1 represents one-half the bridge in position on street car track; Fig. 2, full length of top rail, showing bridge-support; Fig. 3, one section of street-car bridge, showin g extension-rail with flc nged bar connected beneath, Fig. 4 showing one section of streetcar bridge folded. Fig. 5 shows the bridge applied to a street-car track, and Figs. 6 and 7 are detail views of the bridge and cross-bar.

Similar letters refer to similar parts throughout the several views.

In Fig. 1, J is a street-car rail. A is the top rail of the bridge, to be of sufficient height and strength to protect fire-hose and be shorter in length than the distance between the front and rear trucks of a street-car.

In Fig. 3, B represents the extension-rail to be two inches, more or less, longer than the distance between the front and rear trucks.

C is a steel bar half the length and half of the thickness of the extension-rail B and of sufficient width to admit of the flanges being turned down on each side to fit on a street car rail, as represented by I. C will be firmly riveted beneath and to extension 13.

E in rail A and E in O are loose rivets to admit of folding, as represented in Fig. 4.

D is the bridge-support and is riveted beneath and to the center of rail A. The bridgesupports D D in the two sections will be two inches, more or less, different in length, in

order for cross-bars F'F to form a brace to the bridge when complete.

F F represent cross-bars to connect the two sections with a length to correspond with the width of gage of street-car track. G G will be attached either by rivets or welding to F F, forming a loop or socket for flanges K K on bridge-support to drop into. The sockets G G will be about five-eighths of an inch, or thereabout, deeper than depth of K K in the bridge-support D, in order that the weight of the car in passing over rail A may be on parts G G, which are attached to F F.

H H are offsets of parts G G, fitting on the inside of street-car rail to form abrace to hold the bridge in position.

L is a shield four inches wide, three-sixteenths of an inch thick, or of dimensions approximate thereto, with open springs riveted on each end to fasten on F F when the same is in position to protect the fire-hose from brakerods on street-cars. The length of same depends on the length of the bridge-supports D D. The ends of rails A A and the outer ends of extensions B B and pieces 0 0 connected with same will be drawn to a thin edge, while the outer endsof extensions B B will not only be drawn to a thin edge, but pressed down, forming a short flange, as represented by M, to aid in keeping the same in position on a street-car rail.

The object in having extensions B B two inches longer than the distance between front and rear car-trucks is in order that the rear truck may be on B before the front truck begins to ascend rail A.

The obj ect-in having rails A A shorter than the distance between front and rear car-trucks is in order that front truck may be on B before the rear truck commences to ascend rail A. By this means the weight of the car will hold the bridge in position.

That we do claim as our invention, and desire to secure by Letters Patent, is

1. The combination with the curved rails, of supports D, D of unequal length and crossbars, F, F, provided with sockets to receive the upright portion of supports, D, D, to form a bracing substantially as set forth.

2. The combination with curved rails, A,

A, supports, D, D, socketed cross-bars, F, F, G, G, having ofisets or shoulders, H, 11, substantially as set forth.

3. The combination with the cross bars uniting the curved bridge-rails of the shields, L, L, and means for removably attaching the same to the cross-bars, substantially as set forth.

4. Extension-rai1s B B longer than distance between front and rear trucks of street-car, and Width same as width of street-car rail, and pieces represented by O 0, half the length and half the thickness of extensions B B, and not only riveted beneath extensions B B but SAMUEL B. SWEENEY. BENJAMIN F. CLARK. Vitnesses:

JAMES N. lIARMoN, SAMUEL A. IloovER.