US548535A - Smith - Google Patents

Description

(No Model.) I 5 N. 0. GOLDSMITH.

. SWITCH STAND. No. 548,535. Patented Oct. 22,1895.

ARMED! [GRAHAMJHOTO-UTNQWASKINGTONJL UNTTED STATES i PATENT Qrricn.

NATHANIEL O. GOLDSMITH, OF CINCINNATI, OHIO, ASSIGNOR TO THE WEIR FROG COMPANY, OF SAME PLACE.

SWITCH-STAND.

SPECIFICATION forming part of Letters Patent No. 548,535, dated October 22, 1895. llpplication filed August 12, 1895. Serial No. 559,052. (No model.) A

To wlZ whom it may conceiva- Be it known that I, NATHANIEL 0. GOLD- SMITH, 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 a strong durable switch-stand, which is easy to put together and can be readily taken apart for repairs.

' The features of my invention will be more fully set forth in the description of the accompanying drawings, making a part of this I 5 specification, in which- Figure 1 is an end elevation of myimprovement. Fig. 2 is a section on line ac m, Fig. 1. Fig. 3 is a section on line c c, Fig. 2. Fig. 4 is a plan view of one of the gears. Fig. 5 is a plan view of the crank-shaft gear.

A A represent the ties on which the base of the switch-stand is mounted. The switchstand case is made in two sections a b, which are bisected on the axial line of the operatingshaft and crank-shaft. The bearing for the lever-shaft B is made in the flange 0, which is formed integral with the base of the case. The top of the casing is provided with a cap for said bearing, and the bolts which secure the cap to the bearing likewise assist in coupling together the sections of the case.

0 represents the crank-shaft, which is supported in journal-bearings (1, formed of lugs cast integral with the base of the case. 6 rep:

5 resents the caps for said bearing.

f f represent fastening bolts passing through ears in the top section of the case and tapping into lugs g, formed integral with the lower section of the case. These lugs have side extensions, which rest upon the ties A A, to which they are secured by the spikes h.

D represents a gear rigidly secured to shaft 13 and preferably cast integral therewith.

E represents a crank-arm secured to the 5 crank-shaft B and provided with two segmental gears F G.

GearD is of one-half the radius of gear F with which it meshes. Consequently when the lever H is turned one-half of a revolution the crank-shaft B is driven one-quarter of a revolution, which is the required distance for throwing the switch. Gear G meshes with gear I, which is mounted upon the bottom of the target-shaft K. As the radii of these two gears are the same, the target-shaft is moved 5 5 one-quarter of a revolution, which is the required distance for moving the target to the full throw of the switch-bar.

L represents an arm, one end of which is connected to the switch-bar and the other end of which journals upon the crank-pin m of the crank-arm E. The switch-bar is not shown, as its construction and operation are well known.

Several important advantages are obtained by the construction of the switch and target operating mechanism and mounting them in the case, as here shown. First, the crank-shaft is rigidly supported in the base of the case and close to the line of support thereof on the ties. Second, the construction of the case. furnishes a rigid support for a horizontallymoving crank-shaft, which allows the arm L to be pivoted thereto and stand in a vertical position. The connecting-rod (not shown) will of course occupy the'satne position and rise and lower in the operation of throwing the switch instead of moving in a horizontal plane. Again, by bisecting the case on the axial line of the lever and crank-shaft the So switch-stand is readily taken apart, as the bolts which connect the case together secure the caps to the journal-bearing, so that the case can be taken apart without removing the target from its shaft, and said target-is removable with the top part of the casing, leaving the crankshaft and lever-shaft in position with their gear connections. By this construction the case can be taken apart without disturbing the connection of the target with the target-shaft or the crank with its shaft. I believe I am the first to accomplish this result with a ground-throw switch.

I claim 1. Aswitch stand composed of two sections 5 and bisected on the axial line of the crank shaft and lever shaft which are journaled in the base of the case, substantially as specified.

2. A switch stand composed of two sections and bisected on the axial line of the crank 10o shaft and lever shaft which are journaled in the base of the case, and the target shaft journaled in the top section, substantially as switch stand the crank shaft 0, the crank arm specified. E, provided with gears F, G, the lever shaft 3. In a sectional switch stand the combina- B and gear D meshing with gear F, and the 15 tion of the lever shaft B and crank shaft 0 top case and its contained target shaft and 5 journaled in one section of the case, the crank gear, substantially as specified.

arm E provided with gears F, G, formed upon In testimony whereof I have hereunto set the crank arm, a target shaft jonrnaled in the my hand.

top section and provided with gear I meshing with gear G and the driving gear D on the le- NATHANIEL GOLDSMITH IO ver shaft meshing with gear F on the crank Witnesses:

shaft, substantially as specified. WV. R. WOOD,

4. In combination with the base a of a OLIVER B. KAISER.

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