US544240A - John p - Google Patents

Description

(No Modem J. P. TERRY.

HOSE BRIDGE.- Y No. 544,240. Patented Aug'. 6. 1895.

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Unirse ATENT OFFICE.

JOHN P. TERRY, OF BALTIMORE, MARYLAND, ASSIGNR TO EDWARD D. BOOZ, OF SAME PLACE.

HOSEBRIDGE.`

SPECIFICATON forming part of Letters Patent No. 544,240, dated August 6, 1895. l

To @ZZ whom it' may concern.'

Be it known that 1, JOHN P. TERRY, a citizen of the United States, residing at Baltimore, in the State of Maryland, have invented certain new and useful Improvements in Hose- Bridges; 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 appertains to make and use the same.

My invention relatesto a hose-bridge for use on railway-tracks, whereby lines 'of hose may be allowed to cross the track Without stopping the running of the cars thereon, and is intended especially for electric railways.

The object of my invention is to furnish a hose-bridge which shall be especially adapted to support the heavy cars of electric railways and not liable to displacement by such cars, and which shall also be constructed so as to maintain the circuit unbroken when the rail is used for the ground or return-current.

With these objects in view my invention consists inthe improved construction, arrangement, and 'combination of parts hereinafter described, and pointed out in the appended claims.

In the accompanying drawings, Figure 1 is a top plan view'of a portion of a railway-track with my invention applied thereto. Fig. 2 is a vertical cross-section through the left-hand rail and clamp, shown in Fig. 1 on the line 0c x, with the outer clamp in the position it assumes when up against the rail. Fig. 3 is a similar view through the right-hand rail and clamp of Fig. 1 on line y y, with the outer clamp in the position it has when loosened. Fig. -4is a side elevation as seen from the inside of the track of one of my improved bridges. Fig. 5 is a side elevation of the outside of the same asseen from the outside of the track. v

Referring to the drawings by numerals, l marks one of the rails ot' the track, and 2 the other, of an' ordinary railway, whereon cars are to be run by motors. In this instance I have shown rails of a well-known form in cross-section, such as are in use on the ordinary trolley-roads. The upper portion of the rail is provided with two dat surfaces of different heights marked 3 and 4. These levels Application filed February 8, 1894:. Serial No. 499,502. (No model.)

are separated by an upright 7. The inner edges of the rails are marked 8 and their outer edges 10. The lower portion of the outer edge is cut under and forms a shoulder l5.

The bridges 17 ot my improved form are constructed with bottoms to t the tops of the track-rails. The inner edge 19 fits flush with the inner edge 8 of the rails and the outer edge 21 fiush with the outer edge 10 thereof. The top of the bridge has in crosssection two levels or planes 23 24, correspond- .ing with-the top levels 3 and 4 of the rails.

The bottom of the bridge has an upright edge 27 to tit against the upright 7 of the trackrails. The upper level or plane 24 of each bridge is inclined from the two ends, this inclination starting from the level 4 of the rail and extending upward toward the center of the bridge, where it4 is high enough above the top level of the' rail to permit of a passageway or arch 29 below large enough to accommodate a line of hose. The level 23 is in two sections, separated by the passage-way 29. Thebridge is made of metal, which will maintain the circuit of which the rail forms part for the return of the current, and must be strong enough to support the heavy electric cars.

There may be more than one passage or arch 29 in each bridge, if desired.

A clamp-bar 3l has a pendent hook 32 to engage under theinner edge of the rail. This clamp is adjustably secured to the inner edge of the bridge by means of a bolt passing through a vertical slot 34 in the clamp-bar and into the inner edge of the bridge. The clamp-bar is adjusted vertically by a setscrew 35, threaded into its upper end and bearing down on top of bolt 33. A similar clamp-bar 36 has a similar hook 37 to engage the lower outer edge of the rail, and is secured to the outside of' the bridge by a vbolt 38 passing through a vertical slot 39 in the clamp-bar and into the bridge. This bolt has a square portion 40 next to the bridge and a round shank portion 4l next to the head, and the clamp 36 is adjusted vertically by means of a set-screw 42, threaded in the upper end of the clamp-bar and bearing down on top of the square portion 40 of the boltSS.

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To adjust the bridge to the rail, the inner clamp-bar is first adjusted to suit the thickness of the inner edge of the rail and engaged therewith, when the outer clamp-bar is looscned and moved o the square portion to the round portion 4l of the bolt 38, which will allow it to press down outside the rail. The hook-point is then forced under the rail and the clamp-bar placed on the square portion 40 of the bolt and finally tightened by turning the set-screw 42.

On the inner edge of each bridge I provide two eyes 43, with which are engaged the hooked ends of forks 44 of a cross-bar 45, made in two parts, one for each track-rail. The ends of the cross-bar are provided with right and left hand threads, respectively, upon which is fitted a turnbuckle 46. By this means the two bridges on the two trackrails may be drawn toward or forced away from each other, as desired. If drawn toward each other, the inner clamps may be dispensed with, and if forced apart the outer ones need not be used. The cross-bar 45 may be used, however, as an adjunct to both clamps, taking a large part of the strain off them.

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

1. A hose bridge constructed to lit the top of a railway rail having a clamp to engage under the'inner edge of the rail and a horizontally and vertically-adj ustable hook-clamp to engage under the outer edge of the rail, substantially as set forth.

2. The combination of a hose bridge constructed to fit the top of the rail; a clamp consisting of a hooked bar having a vertical slot; a bolt passing horizontally into the bridge through said slot; and a set-screw for tightening which passes down through the upper end of the bar and bears against the said bolt, as set forth.

3. A hose bridge constructed to fit the top of the rail, provided with an outer clamp consisting of a hooked bar having a vertical slot; a horizontal bolt passing into the bridge through said slot and having a square portion, 40, and a round shank, 4l; and a tightening set-screw passing down through the upper end of the barand bearing against thel said square portion of the bolt, as set forth.

In testimony whereof I aliix my signature in presence of two witnesses.

JOHN P. TERRY. Witnesses:

S. BRASHEARS, EDWD. D. Booz.

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