US536890A

US536890A - Switch-stand

Info

Publication number: US536890A
Authority: US
Publication date: 1895-04-02
Anticipated expiration: 1912-04-02

Description

(No Model.) V

G. PARTINGTON.

SWITGH STAND.

No. 536,890. Patented Apr. 2, 1895.

Z fat; 61:

@Kq Z UNITED STATES PATE T OFFICE. v

CHARLES PARTINGTON, OF CINCINNATI, OHIO.

SWITCH-STAN D.

SPECIFICATION forming part of Letters Patent No. 536,890, dated April 2, 1895.

' Application filed September 17, 1894. Serial No. 523.274.v (No model.)

To all-whom it may concern.-

Be it known that 1, CHARLES PARTINGTON, residing at Cincinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Switch- Stands, of which the following is a specification.

The object of my invention is to provide an automatic spring switch stand to be of simple construction and easy of operation. 4

The various features of my invention will be more fully set forth in the description of the accompanying drawings making a part of this specification, in which Figure 1, is a side elevation with the operative parts shown in section. ig. 2, is a sectional elevation of the operative parts shown in Fig. 1, on their center line of movement.

Fig. 3, is a top view partly in plan and partly in section. Fig. 4, is a section on line so, :20, Fig. 1. .A represents the base of the frame thereof.

O represents a crank shaft which journals in the braoketsct, a.

stand; B, the

The top of the frame is enlarged and is pro- I yoke d and at the opposite end to the link G.

gain or way in which link G slides.

H represents a cap piece provided with a It is pinned to the crank shaft and provided with a mortise I in which the knee lever K is pivoted.

L represents a target shaft in the socket of the cap piece.

In Fig. 1, the lever is shown in an elevated positionfor turning the crank shaft and throwing the switch with the strains of the springs removed.

When the lever is fastened down in the position shown in Fig. 3, the links cannot be moved into the position shownin Fig. 2, with out compressing the springs and this is done automatically by the train, the switch in this position being locked against ordinary hand movement.

By the construction herein shown many important advantages are obtained. The links F, G, are housed, and the link F moves freely on its two pivots, link F sliding freely in the gain of the cap piece. By employing two springs instead of one, smaller springs can be employed and by placing them in the pockets the springs can be readily adjusted to any desired tension. The parts are of very simple construction and are very durable.

I claim- 1. In an automatic switch stand the combination of the links F, G, and yoke 01 and springs 0, attached to the yoke, substantially as specified.

2. In an automatic switch-stand, the combination witha frame provided with a housing having a wedge-shaped recess, of springs c inclosed in the housing, a link F moving in the said wedge-shaped recess, a yoke d to which one end of the link is pivoted, and a link G to which the opposite end of the link is pivotally connected, substantially as and for the purposes described.

3. In an automatic switch stand the combination of the frame B, crank shaft 0, cap piece H, housing D, springs a, yoke 01, and links F, G, and lever K, substantially as specified.

In testimony whereof I have hereunto set my hand.

CHARLES PARTING'ION.