US147859A - Improvement in station-indicators - Google Patents

Description

"UNITED STATES- JOHN MULLIGAN, OF NEW YORK, N. Y., ASSIGNOR TO HIMSELF AND WVILLIAM O. FELLOWS, OF POUGHKEEPSIE, NEW YORK.

IMPROVEMENT I'N STATION-INDICATORS.

Specification formir g part of Letters Patent No. 14?,859, dated February 24, 1874; application filed October 18, 1873.

To all whom it may concern: I

Be it known that I, JOHN MULLIGAN, of the city, county, and State of New York, have invented a new and useful Improvement in Station-Indicators, of which the following is a specification:

Figure 1 is a rear view of my improved 'station-mdieator, the case being shown in section through the line 90 06, Fig. 2.

Fig. 2 is a cross-section of the same, taken through the line yy, Fig. 1; and Fig. 3 represents the coupling devices for the reel and clock-work shafts enlarged.

The invention relates to the construction and arrangement of parts for adjusting the tension on the apron as it is wound from the upper reel to the lower; and for connecting the clock mechanism with the reels, also disengaging it therefrom and otherwise relieving the reels of all stops or impediments to free rotation, for rewinding the apron on the upper reel.

The case A contains two reels, O, and has a front slot or opening through which the names of the stations may be read on the apron B. The apron is attached to the reels at its respective ends so that it may be wound from one to the other. Intermediately it passes over a weighted roller, G, whose journals project into slots formed in arms F, which are curved from a point near the lower side of the upper reel to a point near the corresponding part of the lower reel; and, since no part of the arms is horizontal, the roller G is caused by gravity to exert a constant tension on the apron, owing to the form and arrangement of the arms F. This tension is increased as the slack increases by unwinding the apron from the upper reel and winding it upon the lower. Hence, it is always kept taut, or

tightly wound upon the respective reels. This arrangement of the arms F also economizes space. The reels have spur-wheels D, which mesh as shown, and the shaft of the upper one projects to adapt it to receive a turningkey. The lower reel-shaft has one of its bearings in the shaft U of the clock-work, and fingers S T project respectively therefrom in such local relation that a sliding sleeve, Q, re-

ceives both in its notched slot. When the sleeve is pushed back against the spring B, it I can be engaged with the pin S by means of its notched slot, so as to allow the reels to rotate the pivoted arm P will hold it elevated when it is swung under the projection or lug there of, as shown in Fig. 1. The rod is operated by a cord, the arrangement being such that the indicator is below the pulleys L, over which the cord passes. The cord will, in practice, be continuous from one car to another. To reduce friction a pulley, K, is pivoted in the eye of the rod. A hook or lug is formed on the lower end of the rod, which, when the latter is raised, engages with a pivoted lever, M, and causes hammer N to sound the bell O. A spring is connected with the hammer to return the lever M to its former position immediately 7 after being tripped, and a stop-pin is arranged, as shown, to arrest it at the right point. hen the cord is pulled the rod I will be momentaril y raised, thus sounding the bell to give notice to the passengers, and simultaneously freeing the reels so that the clock-work will revolve them till again arrested by the rod engaging sleeve Q, provided with anotched or shouldered slot, and the radial fingers S T, arranged adjacently on separate shafts, in. combination with the clock-work or power mechanism, the H, pivoted trip-lever M, hammer N, and bell reels 0 0 connected by wheels 1), and the re- 0, all c0n1b1ned and arranged as shown 31nd lensing device .P I, as shown and described, for described.

the purpose specified. JNO. MULLIGAN.

3. The verbicallysliding red I, operated by Witnesses: a cord, as shown, and provided with a lug at JAMES T. GRAEAM,

its lower end, the spring J 7 reel 6,112Wingp'1ns T. B. MOSI-IER.

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