US95446A

US95446A - Improved turn-table

Info

Publication number: US95446A
Authority: US
Publication date: 1869-10-05
Anticipated expiration: 1886-10-05

Description

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LLoYD W. EMM/ART AND EDWARD D. GRIFFITH, oFvvAsHINGToN. CITY, DISTRICT or COLUMBIA.

Letters Patent No. 95,446, dated October 5, 1869.

IMPRVED TURN-TABLE.

The Schedule referred to in these Letters Patent and making part of the Vsame WARD D. GRIFFITH, both of Washington city, in the District of Columbia, have invented a new and useful Improvement in Turn-Tables for Street-Railwaysof which the following is a fullr clear, and 'exact description, reference being hadlto the accompanying drawings, which make part of this specification, and in which- Figure 1 represents a view in perspective 0f a turntable with our improvement applied thereto;

Figure 2, an edge view of a portion of the same; and

Figure 3, a section, showing the details ofthe locking-lever.

Cars made to be drawn by a single horse on streetf railways are frequently so constructed as to require the yuse of turn-tables to reverse them.

It is the object of our invention to provide means whereby the cars may be reversed by the driver alone without leaving his car, and at the same time to hold the table securely locked in positionwhile the car is running onor oii, and to lock it automatically when in line with the track; and to these ends,

Our invention consists First, incombining with the-locking lever, which revolves with the platform, a hinged snpport,'attached to the lever, and resting on the platform to prevent the accidental catching of the locking-lever.

. Second, in combining a locking-lever and hinged support revolving with the turn-table, a fixed trippingblock, to lower the'locking-lever, and a fixed lockingcatch, into which the lever falls to hold the rails in line with the trac-k.

In the accompanying drawings a tuin-table, A, constructed in any well-known way, is shown as revolving on suitable bearings.

The rails` B, forming aeontinuation of the track, are secured upon and revolve lwith the table.

l A looking-lever, C, is hinged to the table, or to one ofthe rails, so as to play vertically.

XVe prefer to make the locking-lever forked, to enable it better to resist the shock caused by stopping the revolution of the table. v

A support, D, is hinged to the locking-lever, near the edge of the table,.so as to play freely vertically.

A tripping-block, d, is secured upon the fixed portion F ofthe table, and a locking-catch,E, is similarly arranged about a foot 'from the catch.

The operation -of our invention is as follows:

The ear is driven on the table, thevparts being in the position shown in fig. 1, in which' position the lever rest-s in ythe catch E, holding the table firmly.

locked.

The driver then puts a hooked rod through one of y the ear windows, over the projection c,`and lifts the locking-bolt Ifrom the catch E. rPhe support D iexes as the lever rises, and holds it np during the rotation .of the table.

A shoulder under the hinge prevents the support from swinging beyond a vertical line. This is necessary, as'otherwise the support might swing so far forward as to let the lever fall again, or even to stop the' turning of the table by abutting against the tripping# block, instead of sliding over it.

The horse then pulls the car and table round. When nearly reversed, the support D rises lover the block d, and is ltripped, thus allowing the looking-lever to drop'y and rise over the lower side of the catch into its notch thus locking the table securelythe Vmoment the 1rails are in line with the track. r

The table only revolves through an arc of one hun'- dred-and eighty degrees at eachreversal of the car.

By duplicating the tripping-block and catch, as

shown in the drawings, two cars canl be reversed at.

' 1. The combination, as described, of the hinged locking-lever, and its hinged support, both revolving with the table, for the purpose set forth.

2. The combination, substantially as described, of a locking-lever, revolving Vwith the turn-table, a hinged support attached to the lever, a fixed tripping-block, and a locking-catch, whereby the table is automatically locked by its own revolution, and securely held from moving in either direction when theI rails are in line with the track. `l

In testimony whereof, we have hereunto subscribed our names.

' L. W; EMMART.

E'. D. GRIFFITH.

Witnesses: WM. P. YOUNG,

W. S. SHEPHERD.