US1223945A - Railway-switch. - Google Patents

Description

F. EVANS 84 D. BUTT.

RAILWAY SWlTCH.

APPLICATION FILED SEPT-23. 1915.

1,223,945,, Patented Apr. 24, 1917.

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RAILWAY SWITCH.

APPLICATION FILED SEPT-23, 1915.

Patented Apr. 24, 1917.

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FRANK EVANS AND DAVID DUTT, OIE RIVEBDALE, MICHIGAN, ASSIGNORS OF ONE- THIRD TO BUBTIS 0. MARKI-IAM, OF RIVERDALE, MICHIGAN.

RAILWAY-SWITCH.

Application filed September 23, 1915.

To all whom it may concern:

Be it known that we, FRANK EvANs and DAVID Dur'r, citizens of the United States, and residents of Riverdale, in the county of Gratiot and State of Michigan, have invented a newv and Improved Railway- Switch, of which the following is a full, clear, and exact description.

Our invention relates to switches and signals adapted to be actuated by a train trip.

Our invention particularly relates to a switch and signal of the indicated type so constructed and arranged that the switch bar, connected with the switch points, will be rocked by train trip and a sliding axial movement will be given to the switch bar, the rocking movement serving to actuate a semaphore while the sliding movement serves to throw the switch points, the operation being automatically effected by a train coming from either direction at any rate of speed.

Other distinguishing features of the invention will appear from the more specific description following.

Reference is to be had to the accompanying drawings forming a part of this specification in which similar reference characters indicate corresponding parts in all the views.

Figure 1 is a side elevation of a railway track equipped with our invention, the View including a train trip;

Fig. 2 is a plan view;

Fig. 3 is a fragmentary plan view on an enlarged scale of the operating devices of a switch and signal;

Fig. 4 is a longitudinal vertical section on the line 4-4, Fig. 3;

Fig. 5 is a similar view on the line 5-5, Fig. 3;

Fig. 6 is a transverse vertical section; and

Fig. 7 is a detail sectional side elevation of the means for automatically rocking the switch bar.

Specification of Letters Patent.

Patented Apr. 24, 1917.

Serial No. 52,174.

with the latter by suitable means here shown as consisting of clamp collars 11 on the switch bar 10, and plates 12, adjacent to the switch bar and suitably fastened to the switch points C. The switch bar 10, is mounted to rock and slide axially in any suitable bearings 13.

In order to automatically rock the switch bar by an approaching train, the said switch bar has suitably connected therewith, a rocker arm 14, which extends upwardly above the track and passes freely through a vertical opening 15, in an elongated link 16, which ranges longitudinally of the track. The engagement between the rocker arm 14, and the link 16, is at the approximate center of said link. If desired, the arm 14, may have a slot 14, therein, through which a pin 15 extends to opposite side walls of the opening 15. One end of the link 16, is pivoted as at 16% to a lever 17 said lever being fulcrumed at its lower end as at 18, on any suitable track support 19. The opposite end of the link 16, is pivoted as at 16", to the lower end of a similar lever 17 which is fulcrumed at a point between its ends as at 18, in a bracket 19. Thus, as will be clear from Fig. 7, we provide means for an overslung and an underslung connection between the link and its respective levers 17 17'. Thus, when the lever 17 is tripped and rocked on its fulcrum by a locomotive approaching the same from the direction shown in Fig. 1 the link 16, will be drawn toward said lever. On the other hand when the opposite lever 17 is tripped and rocked on its fulcrum by a train mov ing inthe opposite direction, a pushing action will be exerted on the link. In connection with the switch bar and its operating levers and link, we provide means to trip said levers for closing or opening a switch by a train running in either direction at any rate of speed.

l/Ve prefer to employ a .train trip 20, which is hung on a hanger or other support 22, on a locomotive D, there being a compression spring 21, at the back of the trip 20 to cushion the shock. The hanger 22, as here shown, is suitably suspended from a bellcrank 23, which is connected by a rod 23", and a hand lever 28*, in the engine cab. The arrangement is such that upon the approach of a train carrying a trip 20, in either direction toward the switch, the said trip will contact with the adjacent lever 17, 17 thereby rocking the same and moving the link 16, longitudinally of the track, and through the connection with the rocker arm 14, turn the switch bar 10.

In order that the turning movement of the switch bar 10, may operate a signal, a semaphore 24:, is provided, connected by any suitable means with the said switch bar. In the example shown, a semaphore 2 1, is connected by a link 25 with a vertical rod 25, slidablymounted in a signal stand 26, and extending vertically through the top 26, thereof. The lower end of the rod 25, connects with the rockable switch bar 10, through the medium of a connecting rod 27, which is secured at its upper end to the rod 25, by a universal joint 28, the lower end of the connecting rod 27-, having pivotal connection as by a wrist pin 29, with the disk 30, on the said switch bar. It will thus be seen that a turning movement of the switch bar will serve to raise or lower the semaphore 24.

Simultaneously with the turning movement of the switch bar 10, the same is caused to slide axially, whereby to throw the switch points C. To effect the sliding movement, the disk 30, is constituted a worm element as hereinafter explained and a fixed coacting worm element 31, is provided to engage the same. The element 31, is in the form of an arched bar, the ends of which are suitably fastened as at 82, to the track, with thesaid element 31, ranging obliquely across the periphery of the disk 30, said disk being provided with an oblique groove 33, thus giving said disk the character of a worm element, to receive the bar 81, as indicated in Fig. 5.

By the desired relation of the disk 30, and the coacting element 31, it will be seen that upon a turning of the disk by the rocking of the switch bar 10, the engaging groove 83, therein and bar 31, will cause the said disk 30, andwith-it the switch bar 10, to be slid axially in the bearings 13, thereby throwing the switch" points 0 in unison with the operation of the semaphore 24-. Thus the-simultaneoussli'ding and turning movements are imparted to'the switch bar 10, by a-simple and positively acting construction.

In orderto lock the switch and signal, we provide a latch '34-,which is pivoted to the track-as--at 35, to swingin a vertical plane. On the underside of the latch 34, between the en'ds 'thereof, a catch tooth 36, is formed which is adapted to engage in a notch '37,

lock the switch.

In order to turn the rockable switch bar 10, manually when desired, a hand-wheel 40, or equivalent lever element, is provided on one end of the said switch bar.

The form and size of the opening 15, in the link 16, are such as to permitthe arm 14, to move transversely relatively to said link16, in response to the described sliding movement of the switch bar 10 by the action of the worm elements 30, 31.

Having thus described our invention, we claim as new and desire to secure by Letters Patent:

1. In an apparatus of the class described a transverse switch'bar, mounted to turn and to slide axially and provided with a rocker arm thereon, a longitudinally disposed link, therebeing a connectionbetween said link and said rocker arm to rock the armby a longitudinal movement of the link and arranged to permit a transverse movement of the rocker arm with the switch bar relatively to the link, means connected with saidlink and adapted to be engaged by a train trip to move the link-longitudinally, and means to connect the switch bar with switch points to throw the latter by a longitudinal movement of the switch bar.

2. An apparatus of the classdescribed, in-

cluding a transverse switch bar mounted to turn and to slide axially and provided with a rocker arm thereon, a longitudinally ranging link, having between the ends thereof, an opening receiving the said arm on the switch bar, said opening being of a width to permit a movement of the said rocker arm transversely of the opening in response to a sliding movement of the switch bar, levers pivotally connected with the opposite ends of the said link and adapted to be engaged by a train trip, and means to connect the switch bar with switch points.

In testimony whereof we have signed our names to this specification in the presence of two subscribing witnesses.

FRANK EVANS. DAVID DUTT.

Witnesses:

ARTHUR W. 'WYETH, ADAM BRITTEN.

Copies of this pa-tentmay be obtained for five cents each, by addressing the Commissioner ofPate-nts,

I 'Washington, D. G.

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