US639127A - Switch for electric traction systems. - Google Patents

Description

Patented Dec. l2, I899.

U. ZOEDICKE. SWITCH FOR ELECTRIC TRACTION SYSTEMS.

(Application filed Aug. 28, 1899.)

(No Model.)

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OTTO ZOEDIOKE, OF MIlHLI-IAUSEN, GERMANY.

SWITCH FOR ELECTRIC TRACTION SYSTEMS.

SPECIFICATION forming part of Letters Patent No. 639,127, dated December 12, 1899. Application filed August 28, 1899- Serlal No-72 ,780 (N0 111013610 T0 on whom it may concern:

Be it known that I, Orro ZOEDIOKE, merchant, a subject of the King of Prussia, Eniperor of Germany, residing at Miihlhausen, (Thuringia,) in the Kingdom of Prussia and German Empire, have invented certain new and useful Improvements in Switches for Electric Traction Systems, of which the following is a specification.

This invention relates to well known switches designed for electric railways; and it has for its object to provide novel, simple, and efficient means for preventing the current-collecting roller or trolley jumping the switch. This object is accomplished in the manner and by the mechanism hereinafter described and claimed, reference being made to the accompanying drawings, in which- Figure 1 is a detail plan View of sufficient of the switch to enable my invention to be understood, and Fig. 2 is a detail vertical sectional view showing parts hereinafter explained.

In order to enable those skilled in the art to make and use my invention, I will now describe the same in detail, referring to the drawings, wherein- The letters 0 d indicate two spring switchtongues, and x the overhead current-collecting roller or trolley, the pivotal points of the tongues being located opposite each other,and the tongues being arranged to be automatically operated by the current-collecting roller or trolley. When this roller or trolleytravels from one fixed contact, as at a, to another, as at a, the tongue 0, its spring being overcome, is pressed against the tongue cl and the roller passes, the tongue 0 resuming its normal position after the passing of the current-collecting roller. When, on the otherhand, the currentcollecting roller a: runs from b to a, the tongue d, the tension of its spring being overcome, is pressed outward in the direction of the arrow I and returns after the passing of the current-collecting roller to the position shown in Fig. 1. During the passing of the currentcollecting roller over such switch -tongues the difficulty very easily arises that in consequence of the resistance of the tongues, acting under the influence of a spring against the movement of the current-collecting roller x, the said roller jumps off the switch-tonguesi. 6., off the switch itself. In order to overcome this objection, guide-plates it" are provided on each side of the switch-tongues viz., plate 7 for the switch-tongue c and plate 2" for the switch-tongue d-these plates having projecting edges turned inwardly. The projecting edge of each guiding-plate holds and catches the studs y of axle projecting on each side of the current-collecting roller w while the current-collecting roller is passing over the switch-tongues-i. e. the air-switch.

This switch can also be adapted for use on cable roads.

Having now particularly described and ascertained the nature of this invention and in What manner the same is to be performed, I declare that what I claim is- A switch for electric traction systems with three fixed conductors such as Ct a, 12 com prising intermediate s prin g-controlled switchtongues such as c and d with oppositely-arranged pivotal points in combination with guide-plates having inwardly-turned edges adapted to engage with the axle or studs on the current-collecting roller when the latter passes in order to prevent the jumping off of the roller from the tongues at the switchingpoints substantially as described.

Intestimony whereof I have hereunto set my hand in presence of two subscribing witnesses.

OTTO ZOEDIOKE.

Witnesses:

WILHELM KLEYENSTEUBER, FRIEDRICH LOEGENBRUOH.

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