US106131A - James davis - Google Patents

Description

l Sary to a full uiulerstanding `the same in the summary or page orpi,

.JAMES DAVIS, or NEW oRLEANs, LoUisIANf-l,

Leners Baena No. 106,131, @ma August 9, 1870.

iMPRovm/inm 1N RAILWAY swrrcans.

l Theclziedule referred to in these Letters Patent and making part of idle same To all whom it 'amy concern:

Y Be it known that LJAMES DAVIS, ot' N e`\ v Orleans, infthe p arish of Orleans and State of Louisiana, have invented a new and useful Improvementin Railroad S\\'itl`:hes andI do hereby declarethat the following is a full, clear, and exact description thereof, which will enable others skilled in the art to make and usev the same, reference being had to the accompanying drawing `forming part of this spekcication.

, `My inventionrelates to railroad switches, and aims to make certain improved arraiweinents ot' the mechanism whereby attained in the operation thereof. I will first describe my improvements in connection with all Athat is neces thereof, and then specify claim.

Figure l is a plan view of a.v railroad ltrack and switch arranged,according to my improvement. Also, a plan ot'a car thereon with switch-operating wheels;

Figures 2 and 3 are side and end elevations oi' the said car; l 1 Figure 4 is a plan view4 ot a car with abroad flange.

on onewheel for shifting the switches;

j Figureis aplau ofthe bottom of the switchshifting and locking apparatus inverted; and

Figure 6 is atsection of the same on the line :c x. Similar letters of reference indicate corresponding parts.

A and B represent the switch-rails.`

D and E represent the main rails.

The s\vi,th-rails al'e connected by bolts to the' shift,- ing hat` C at the underside, the latter is connected to the vibrator, F, pivoted at G, and connected by the arm H and link I, at one side, to the lever K, and, at the other side, bythe arm L and link M to the lever Three short. levers, Ii aiidN, are 4pivoted, at their centers, to the axles O, and project upward into the paths ot the flanges P, or the shifting wheels, Q, of

the c ars. l .lhese leversLK N, have studs, It, atronc side, which are engaged by the catch-bars K', pivoted below the track, with their upper edges inclinedv and elevated into the paths of the ,Ganges or wheels, by

which they are actuated. They are provided `with catches, `the studs R and lock the levers in a vertical position.

The levers `K N are placed ou opposite sides, one near eachral, to be acted on alternately for shift-ing S, which engage K N, when they are `the switches in either direction.

greater convenience and certainty is` lI M, and levers NK, with The forward wheel of the car, ivhich is to shift the switch, is provided with a broad flange, P, which first acts on the inclined upper face of the locking-bar K', pressing it down and disconnecting the catch S from the stud R ot' the lever K or N, as the case maybe.

It then strikes the level-'K or N and throws it forward, drawingback the arm of the vibrator F, and' moving 'the slide C and the switch-rails A B; also throwing forward the opposite army of the vibrator to which the other lever, K or N, is connected, thereby movingr the said level' into a vertical position, ready to be acted upon by the flange or wheel on the opposite side, when it is required to shift the switch.

When the shitting lever K orN is thrown upto the vertical position, the switchis locked by the catolibar K.

20i` course, in all double switches, the flange for throwing one way will be on one side of the car, and the one for throwing the other way will be ou the other side of the car. l The same arrangement is applicable also to single switches. y

Instead of the anges P, I propose to use, in some cases, wheels, Q, preferably attached to the ca1s,.so as to be supported above the rails a suitable distance, and be moved down at the proper time by thc engineer or brakemam'to act on the switch-locking bars and the shil'thing levers.

In this exqnple I have represented the wheel Q as 'attached to a vertically-sliding-bar, U, connected to a hand-lever,- V, for moving it down, and provided with a spring, W, for

raising it up and supporting it;` but any other arrangement of apparatus for supporting` and working these wheels may be employed.

vSnell wheels may also be permanently supported in i eliecting the unlocking `and the right position for switching.' l

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

1. The combination of vibrator F, arms H Iz,li nks au elastic projecting catch bar, S K', constructed and operating as and for the purposespecified.' Y I 2. The arrangement of studded levers KR, KN, and spring projecting catch-bars S K', structed as and for the purpose described.

JAMES DAVIS. Witnesses:

A. L. PLAT'rnNcun,

B. F- Swarm.

when` con-

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