US138496A - Improvement in station-indicators - Google Patents

Description

o. B. anlass Station-indicators. 1 v NO. 138,496. Patented May 6,1873.

w-y I *ser* i Y UNITED STATES PATEET OFFICE.

OLIVER B. GRIGGS, OF MANSFIELD CENTRE, CONNECTICUT.

IMPROVEMENT IN STATION-INDICATORS.

Specification forming part of Letters Patent No. 138,496, dated May 6, 1873; application flied October 23, 1872.

To all 'whom it may concern:

Be it known that I, OLIvER B. Gardes, of Mansiield Centre, in the county of Tolland and State of Connecticut, have invented certain new and useful Improvements in Station- Indicators, of which the following is a specification, reference being had to the accompanying drawing, inwhich Figure l is an isometric view of the same.

This apparatus is more especially designed to indicate, automatically, to the passengers in a steam` railway car the stations to which they successively approach.

The apparatus is represented in the drawing as contained in a box, a, which may be fixed to one end of the inside of the car, preferably near the roof, and with the side a a a facing the passengers. There should be one in each end of the car, or matters may be so arranged that the box a containing the mechanism may be changed from one end of the car to the other, so that the passengers may always face the indicator.

The letter b indicates an arm, extending, by preference, from the top of the car, and so extended as to strike at its end a double inclined plane, appropriately set by the side of the railway, so as to cause the arm to move either forward, toward b1, or backward,toward b2, according to the direction in which the train is moving. This arm b is attached, either permanentl y or otherwise, to the shaft c. In practice one of these arms will probably be set at each end of the car, and attachment made to the shaft c when the box is changed from one end of the car to the other. The shaft c turns in the bearings c1 c2, and between these points becomes the bell-crank c3. The letters d d indicate two slides, which may move back and forth on the pins c. From the slide` d projects the arm f, and from the slide d. the arm f. When the arm b is moved forward, the crank c3 will move the arm f and its slide d forward,

causing the spring-arm g' to catch in the teeth of the ratchet h1 on the end of the roll B, and thus partially rotate the roll. After the arm b When the arm b is moved backward the crank c3 will move the arm f and its slide'd backward, causing the spring-hook g to catch in the teeth of the ratchet h on the roll A, and thus rotate the roll backward; and continuous backward movements of the arm b y will cause the continuous backward step-bystep rotation of the roll A. Thespring t' returns the slide d to its place-after each of the backward movements of the arm b, and the spring i returns the slide d to its place after each of the forward movements of the arm b.

An apron, C, of cloth or the like, runs from the roll A to the roll B, on which are the names of the stations in proper succession just the distance apart that the rolls are rotated by the movement of the arm b. The double inclined planes upon which the arm b strikes are placed, by preference, midway between the stations, and after the car passes one of these the apron C will present, through a proper slot in the face a a' c', the name of the next station. When the end of the route is reached, the apron is properly rolled to commence its return journey.

Each movement of the arm b can be made to strike a bell, to compel attention.

I claim as my invention- The combination of the arm b, shaft c, cranked, as described, arms f and f, slides d d', springs e'. i', spring-hook and spring-arm g g', rolls A B provided with ratches h h1, apron C, and spring h2, constructed and operated substantially as described, for the purpose set forth.

' OLIVER B. GRIGGS.

Witnesses:

J Mns WALDEN, T. N. GRIGrGrS.

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