US738205A - Switch-throw. - Google Patents

Description

No. 738,205. PATENTED SEPT. 8, 1903. G. G. KORNS.

SWITCH THROW.

APPLICATION rum) OCT. 15, 1902.

N0 MODEL.

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No. 738,205. Patented September 8, 1903.

UNITED STATES PATENT OEEIcE.

CLARENCE C. KORNS, OF JOHNSTOWN, PENNSYLVANIA, ASSIGNOR TO THE LORAIN STEEL COMPANY, A CORPORATION OF PENNSYLVANIA.

SWITCH-TH ROW.

SPECIFICATION forming part of Letters Patent No. 738,205, dated September 8, 1903.

Application filed October 15, 1902. Serial No. 127,429- (No model.)

T all whom it y concern: The cover portion of the box A has a lon- Be it known that I, CLARENCE C. KORNS, gitudinally-extending slot a therethrough to of Johnstown, in the county of Cambria and permit of the operation of the lever C, the State of Pennsylvania, have invented a new end portions a of such slot being laterally 55 and useful lmprovementin Switch-Throws, enlarged to admit the hand for the purpose of which the following is a full, clear, and of grasping the handle portion of said lever. exact description, reference being had to the This lever is normally in the oblique position accompanying drawings, which form a part shown in Fig. 2, with its handle portion lying of this specification. just within the box A, where it can be readily 6o 10 My invention has relation to certain new reached by the hand. With the lever in this and useful improvements in switch-throws, position it will be readily seen that if the and more particularly to a switch-throw deswitch-rod were directly connected thereto signed for use in streets and other places the switch would not be locked, but might be where it is necessary or desirable that the accidentally thrown, or that a car or engine 65 switch-lever shall normally lie below the surby trailing through the switch might throw face of the street or pavement. the lever upwardly out of the box and possi- The object of my invention is to provide bly injure some person in the street. This, switch-operating means of simple and prachowever, is effectually prevented by means of tical character in which the operating-lever the short lever D, which, it will be noted, by 7o normally concealed in a suitable box or reason of the eccentric relation of the centers casing set in the street or pavement in such a and d has been forced past the center 0 to position as to be readily accessible through a position in which it is securely locked the slotted cover of such box or casing, while against accidental movement. at the same time the switch is automatically The manner in which the lever D is turned 2 5 locked thereby against accidental movement. on the center d to actuate the switch-rod E ith this object in view my invention conwhen the lever C is thrown is apparent from sists in the novel construction, arrangement, the drawings. The simplicity of the arrangeand combination of parts, all as hereinafter ment and its positive action, combined with described, and pointed out in the appended the locking-feature above described, make 0 claims, reference being had to the accompanyit a very useful device for the purpose.

ing drawings, in which- \Vhile I have illustrated the invention in Figure 1 is a plan view showing my imconnection with a split switch, it will of proved switch-throw with portions of the course be understood that it may be used to box or casing broken away 5 Fig. 2, a side equaladvantage with other forms of switches. 3 5 view of the same; Fig. 3, a plan view of the Various changes may also be made in the deoperative parts on a larger scale, and Fig. at tails of construction and arrangement witha detail view. out aifecting the material features of my in- The letter A designates a suitable box or vention. casing, which in use is designed to be set in Having thus described my invention, what 40 the street or pavement adjacent to the switch I claim as new, and desire to secure by Letters 13, substantially flush with the surface thereof. Patent, is C is the operating-lever, which is pivoted 1. In a switch-throw, the combination with near one of its ends at the central portion of an operating-lever, and a switch-rod to be opthe box on a large center 0. D is a short erated thereby, of an intermediate lever to 45 lever, which is pivoted on a center (I, which which the said rod is connected, and which is is eccentric with respect to the center a, the connected to the operating-lever, said interaXis of at being below the aXis of 0. One end mediate lever having its center parallel with portion of this lever D is engaged by a pin but below the center of the operating-lever, or projection c on the short arm of the lever the point of connection between the switch- 50 C, and to its opposite end portion is pivotally rod and the intermediate lever, and the point connected the switch-rod E. of connection between the intermediate lever and the operating-lever, being respectively at opposite sides of the axes of said levers.

2. In a switch-throw, the combination with an operating-lever, and a switch-rod to be 0perated thereby, of a short intermediate lever, parallel with the operating-lever and fulcrnmed eccentrically thereof, one arm of said intermediate lever being connected with the short arm of the operating-lever and its other arm with the switch-rod.

3. The combination with the operatingdever, of the short lever pivoted intermediate of its ends eccentrically of the operating-lever, and having one of its arms operatively connected to said operating-lever, and a switch-rod connected to the other arm of said short lever.

CLARENCE C. KORNS.

lVitnesses:

GEO. H. PARMELEE, H. XV. SMITH.

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