US500335A - Switching device - Google Patents

Description

(No Model.) 2 Sheets--Sheet 1. A. LEVIN. SWITCHING DEVICE.

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SWITCHING DEVICE.

No. 500,335. Patented June 27, 1893.

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THE NORRIS PETERS co. FNOTQ-LITHQ, WASHINGTON. o. c.

UNITED STATES PATENT EErcE.

ARVID M. LEVIN, OF CLEVELAND, OHIO.

SWITCHING DEVICE.

SPECIFICATION forming part of Letters Patent No. 500,335, dated June 2'7, 1893.

Application filed January 20, 1892. Serial No. 418,725- .No model.)

To all whom it may concern.-

Be it known that I, ARVID M. LEVIN, a citizen of Sweden, and a resident of Cleveland, county of Ouyahoga, State of Ohio, have invented certain new and useful Improvements in Switching Devices, of which I hereby declare the following to be a full, clear, and exact description, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in switching mechanism for street car service, and its objects are to provide means for operating the track switch from the car platform with certainty and precision.

My invention consists in the combination and arrangement of the various parts and construction of details, as hereinafter described, shown in the accompanying drawings, and more specifically pointed out in the claims.

Figure 1 is a side elevation of car and attached mechanism with longitudinal section of track and attached mechanism. Fig.- 2 is an end elevation of car platform and attached mechanism. Fig. 3 is a plan view of track and switch points. Fig. 4 is an enlarged side View of mechanism attached to car. Fig. 5 is a plan view of same. Fig. 6 is an enlarged plan of track, lever and box. Fig. 7 is a sectional elevation of same, the section being taken on line x0c Fig. 6. Fig. 8 is a transverse section on line y-y Fig. 7. Fig. 9 is a view of operating wheel, and Fig. 10 a vertical central section of same.

By referring to the drawings, it Will be seen that A is a lever projecting toward the front of the platform and pivoted at a to the bottom of the car upon the support A. To the same support A are also pivoted at a, the short parallel arms B, forming the lever B, to the free extremity of which is pivoted the disk O on spindle c. The lever A extends beyond the bearing A and is enlarged at A to receive the vertical rod D, which is pivoted at d, between the arms B B; a spring D upon the rod E separates the arm and bars B. The special function of this spring will be specifically described hereinafter. A nut 6, upon the rod E, secures the parts together.

Adjacent to the track rail, as shown in Figs. 1, 2, 3, 6 and S, is placed the box F inclosing the bell crank G, the longer arm of which G lies directly below the flange of the wheel, not touching it, but as shown in Fig. 2, vertically underneath the disk 0 as the car passes. The shorter arm of the bell crank isrounded at the extremity g and is supported in the foot plate F of the box F at f where it has a rocking movement. A full view of this crank is shown in Fig. 1. A slot f, at the upper edge of the box F permits the disk 0 to engage the longer arm of the bell crank as it passes.

Pivoted to the angle of the bell crank at g is the forked head h of the rod H, which passes underneath the rail flange until its extremity h is pivoted to the cross-bar I which extends from rail to rail and is accurately pivoted at 1' within the box J. On the opposite track the same construction is repeated, the movement given the cross-bar Ibeing the reverse to that given by the first mentioned side.

K is the tongue or point of the switch, which is pivotally attached at h to one extremity of the rod L, the other extremity of which is attached pivotally to the projection I of the cross-bar I in its central part. The rod L is attached at K to the tongue, at-the proper distance from its pivotal point K as to give the necessary throw.

The operating mechanism for the disk O and lever A upon the car is seen to be a wheel M and a rope or chain N, so arranged as to turn in either direction and raise either lever A, as desired; when one side of the rope is tightened and Wound on the wheel, the other side in this case Will be slackened, and the longer and heavier end A drops of its own accord. This end may be especially weighted as at A for this purpose.

In Figs. 9 and 10, O is the standard provided with the box 0, inclosing the wheel which is supported on the spindle P. The whole is securely attached to the dash board by bolt Q, and to the floor at R.

A wrench handle S is shown, provided with the spring actuated catch T, which engages one of the notches t in the arm of the case 0, to hold the wheel in any desired position.

Bolts S S in slots S S secure the catch to the winch handle.

As seen in Fig. 6, a guide way is formed for the disk 0 to the slot, by means of the flange f which is turned away from the track at f for that purpose.

An addition at F is added to the box for cleaning refuse from the box. f is a stop to prevent tipping the bell crank too far.

In operation, when approaching a switch, the wheel is turned either way according as it is desired to move the tongue to the right or left, the weighted leverA is pulled up, thus depressing the hearing A upon the spring D, and thus pushing down the armsB with disk 0, upon the track. The springD being compressed will keep down the disk 0 upon the track in spite of the jolting and pitching movements of the car body. The disk will readily find its way into the groove f and will depress the long arm of the bell crank C and turn the switch. The movement of the bell cranks will be reciprocal, one being up while the other is down, so that either will be ready for use at any time.

The advantage of this device will be obvious in the time saved and precision acquired by its use.

It will readily be seen that any common form of lever can be substituted for the wheel and cord.

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

1. In switch mechanism the combination with depending car mechanism as described of duplicate rail sections on opposite sides provided with longitudinal slots f therein, and adjacent drain boxes, F and F sockets f, and stops f in boxes F, and bell crank levers G, each having one arm projecting horizontally underneath one of said slots and the other resting in said socket, and switch operating rods, I-I, pivoted to the angles of said levers, substantially as described.

2. In switch operating mechanism the combination of bell cranks G, provided with extended arms g, boxes F, inclosing said levers, provided with bearings f, slats f stops f and rods H, with cross bar I provided with extension 1 and rod L, connecting the switch point therewith, substantially as described.

3. In switch operating mechanism the combination of duplicate bell-crank levers, G, G, underneath the treads, of opposite track rails, the said levers being provided with horizontal longer arms G, G, and vertical short arms 9 g, with operating yoke connecting the said levers with the switch point whereby the depression of one lever arm G will raise the opposite arm, and throw the switch point substantially as described.

4.. In switch mechanism the combination of duplicate bell cranks underneath the treads of opposite track rails the said levers being provided with long horizontal arms and short vertical arms with operating yoke connecting the said levers with the switch point whereby the depression of one horizontal arm will throw the switch point and raise the opposite arm and inclosing boxes for the bell crank levers, provided with rests f. stops, f and slots f, substantially as set forth.

5. In switch operating mechanism the combination of duplicate bell crank levers G, G, located underneath the treads of opposite track rails, and provided with long horizontal and short vertical arms, with inclosing boxes for the levers provided with longitudinal slots, f flanges f guides f stops f and rests f, operating yoke connecting the levers Gwith the switch point and car mechanism substantially as set forth whereby one lever will be depressed, the switch point thrown and the other lever raised as and for the purpose set forth.

ARVID M. LEVIN.

Witnesses:

A. U. SHELDON, WILLIAM J. W001).

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