US488182A

US488182A - Switch-stand

Info

Publication number: US488182A
Authority: US
Publication date: 1892-12-20
Anticipated expiration: 1909-12-20

Description

2 Sheets-Sheet 1.

(No Model.) J. GHRISTIANSEN.

SWITCH STAND.

0. 488,182. Patented Dec. 20, 1892.

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2 Sheets-Sheet 2.

(No Model.)

J. GHRISTIANSEN.

SWITCH STAND. No. 488,182. Patented Dec. 20, 1892.

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NITED STATES J OI-IN CHRISTIANSEN, OF QUINCY, MASSACHUSETTS.

SWITCH-STAN D.

SPECIFICATION forming part of Letters Patent No. {188,182, dated December 20, 1892-.

Application filed March 9, 1892.

To aZZ whom it may concern.-

Be it known that I, JOHN CHRISTIANSEN, a citizen of the United States, residing at Quincy, in the county of Norfolk and State of Massachusetts, have invented a new and useful Switch-Stand, of which the following is a specification.

My invention relates to improvements in switch-stands for that class of switches in which the switch rails are operated by a vertical movement, and I refer here to Patent No. 465.791 issued to me December 22d. 1891; and the objects of my improvement are first, to provide a switch-stand which shall effect the rotating movement of a switch-rod or crank-shaft, in an eifective manner, and with a similar movement of the operating handle as now in use on switch-stands operating a horizontally sliding rod; second to provide in such a stand for a flexible connection between the stand and the rotating crank-shaft, for it is undesirable and impracticable to make and maintain in true alignment an inflexible connection. Third,to protect the mechanism of such a stand by inclosing it in a tight casing preventing thus injury from external causes, and clogging of it by snow and ice, and yet making it easily accessible for inspection and repairs.

Fourth; to provide in a single and effective way for a taget-rod, with target or signal attached thereto, in a linear extension of the upright shaft of the switch-stand, yet not rigidly connected with said shaft and which shall allow of a rotation of the target rod, at a'lesser number of degrees than the upright shaft, to which the switch operating handle is attached, may make. I attain these objects by the mechanism illustrated in the accompanying drawings in which Figure l. is a vertical section of the entire switch-stand. Fig. 2 is a front view of the same. Fig. 3 a top or plan view. Fig. i a plan view of the base. Fig. 5 a side view of the switchstand, showing flexible connection with the crankshaft operating the switchrails, and Fig. 6 shows the base of the switch stand with another form of flexible connection to the crankshaft.

Similar letters refer to similar parts through out the several views.

A is the column of the stand, B the base with brackets or feet N to fasten to the rail- Serlal No. 4=Z4=,325. (No model.)

road-ties, o. c. lugs by which the column is secured to the base.

II and G are bevelgears, both fixed and journaled in the base B. (See Figs. land 6.)

F is a carrier or dog engaging by means of slots with the ribs of bevelgear G. and fastened to the end of the square shaft E to which shaft is also secured the casting L., having pivoted to it lever lVL, which in Figs. 1 and 3 is shown in a horizontal position, but in Figs. 2 and 5 in a pending position, engaging into slots h. h of the top flange of column A thus locking the switch respectively, either for main track or for siding.

I. R and P. are universal joints at each end of the intermediate switch rod f. by means of which it becomes possible to operate the crank shaft S. Fig. 5 at an angle downward and sidewise if desired, hence no particular care in setting the switch-stand with relation to the crankshaft need be exercised.

In place of the universal joints as shown in Figs. 1. 3 and 5 I use also the less expensive device shown in Fig. 6, which consists of a wire rope of sufficient size to transmit the torsion to the crankshaft, and I obtain thus the indispensible flexible connection.

0 is the target rod with target D attached, the hollow rod 0 slips loosely over the shaft E. the latter forming merely a guide to keep it in a vertical position. At the base of said rod 0. a bellshaped enlargement fits loosely over the hub of the casting L, and attached to this bellshaped enlargement is the arm. c. with bolt. b. at its extremity, which bolt has a large head extending under the bottom of the flange atthe top of column E., thus preventing the rod 0 with its target from being lifted ed the stand. The segment cutout 0f the flange at the top of column E, and in which the bolt b. travels, permits the arm e. to rotate through an arc of ninety degrees. The casting L contains a rib a. which engages in a slot in the bellshaped part of rod 0. This slot is large enough to permit of a movement of the casting L and lever M connected therewith of ninety degrees without causing a movement of target-rod C. and it is only during the movement of the last ninety degrees of lever M. in direction of arrow shown in Fig. 3, that rib a. brings up against one side of the slot in bell, and moves the target rod with its lever 6. until the bolt 17. brings up against the end of segment, and lever MI. drops into slot h and thus locks both switch and target. The movement of lever M. need not necessarily be one hundred and eighty degrees as here shown,it may be more or less, the slot in bell varying accordingly.

What I claim as my invention and desire to secure by Letters Patent is.

1.. In aswitch stand for operating vertically moving switch rails, in combination with the crank shaft of the switch, the flexible rotating connecting bar between the switch-stand and the crank shaft, enabling the rotating of the crank shaft properly by the switch-stand, even if placed out of alignment with said crank-shaft, substantially as described.

2. A switch stand for operating vertically moving switch rails, in combination with an intermediate operating bar (f), consisting of a piece of ordinary merchant bar iron, provided at each end with a universal joint, substantially as described.

3. In a switch stand for operating vertically moving switch-rails, the combination of a vertical shaft geared to a horizontal shaft at the bottom of the stand, with a universal joint at the outer end of said horizontal shaft substantially for the purpose specified.

at. In a switch stand for operating vertically moving switch rails, the combination of a hollow baseB. having a vertical and a horizontal bevel gear, journaled in same in such a manner, that the cap of the inside journal of the shaft for the vertical gear, forms the pivot for the horizontal gear, with a detachable column A., the dividing line being even with the top of outside journal box (K), thus holding same in place when connected, all substantially as described.

5. In a switch stand for operating vertically moving switch rails, the combination of the target rod 0 terminating at its lower end in a bell shaped enlargement and having arm e and bolt b., with the operating shaft E. containing dog L having rib a engaging into a slot in the bell shaped enlargement substantially as and for the purpose specified.

JOHN OHRISTIANSEN.

Witnesses:

GEO. L. GILL, IIATTIE L. BURRELL.