US337352A - Switch-stand - Google Patents

Description

(Nummer) V.2 sheetssheet 1.

A. A. STRG-M.

SWITCH STAND.

Lin/fl IH (NB Model.) 2 sheetssheet 2.v

A. A. STROM.

SWITCH STAND.

No. 337,352. Patented Mar. 2, 1886.

, J L M /V i PATENT trice.

AXELv A. STROM, OF AUSTIN, ILLINOIS.

SWITCH-STAND..

SPECIFICATION forming part oi Letters Patent No. 337,352, dated March 2, 12386.

(No model.)

To all whom, it may concern:

Be it known that I, AXEL A. STROM, a citizen of the United States, residing at Austin, in the county of Cook and State of Illinois, have invented certain new and useful lmprovements in Switch-Stands; and I hereby declare the following to be a full, clear, and exact description of` the same.

My invention relates, particularly, to a stand for split switches, the principal object being to avoid cause for the derailment of rolling stock or injury to itself or to the wheels when the switch is closed, byproviding a construction whereby the switch shall be automatically opened by the flange of the locomotive-wheel, which rst comes into contact wit-h it, and whereby the device shall be readily readjnsted with accuracy, and also be capable of operation by hand.

It is also my object to afford a generallyimproved construction of switch-stand.

My invention consists in the general construction of my improved device; and it further consists in certain details of construction and combinations of parts, all as hereinafter more fully set forth.

Referring to the drawings, Figure l isacentral vertical section ot' my improvement, displaying the parts in operative combination; Fig. 2, a vertical section of the base, having the upper part of the device broken away, and showing the improved construction of the suppcrting-bracketsecured upon asingleheadblock; Fig. 3, a plan view of the supportingbracket, showing the yoke of the switch-bar in position; Fig. 4, aperspective view of thel movable table, provided with four peripheral recesses and formed with a vertical sleeve having its lower extremity provided with teeth forming the movable part of a clutch; Fig. 5, a perspective view of the lower stationary part ofthe clutch, and Fig. 6 a sectional plan view taken on Fig. l immediately below the clutch device.

A is the standard portion of the device, comprising the vertical hollow cylinder r, having cast with it the hollow base fr', provided with a flange, g.

B is the supporting-bracket, in the form of an angular plate bent at its horizontal edge, to afford the shape of an angle-iron forming a socket, o, to hold the base i at the flange q,

which enters it, and provided on its upper horizontal surface with fiat ribs Ap, which serve as the ways forv the sliding yoke C on the switch-actuating bar G, and also affords stops to prevent the displacement ofthe base r', which covers them and abuts at opposite internal sides against their extremities. The lower extremity of the cylindrical portion r of the standard is provided with a strengthening-web, n., which affords a seat for the lower portion of a clutch, D, which is firmly secured in position by means of screws t, as shown in Fig. l. The movable part of the clutch is afforded by the hollow cylinder E, provided for the purpose upon its lower extremity with teeth corresponding with those formed on the part D, and cast or formed as a part of the rotary table F hereinafter described. rlhe diameter of the cylinder E is less than that of the internal diameter of the cylinder r, to fit within the latter, which is reduced besides at its lower end, as alreadyl described, also toward its upper extremity, to afford a close t and consequent bearing to the diametrically enlarged upper extremity 0f the cylinder E. The plate or disk F sur-A mounts the cylinder r when the part E is adjusted in position, preferably, however, to avoid friction without contact with the same, and is provided, for a purpose hereinafter named, with four recesses, m, formed in the periphery at equal distances apart-il e., ninety degrees.

I-I is the spindle,or feature usually provided with the target L, extending through the cylinder E, internally reduced,as shown, toward its opposite extremities to afford bearings for the spindle and prevent awabbling inctionjof the same, and through the web or cross-barn, and provided at its lower extremity with a crank, Z, which ts within the central opening of the shifting-block kof the yoke C, the crank being limited to a sweep of ninety degrees to avoid the occurrence of its assu ming a position on a dead-center.

I is the collar,surrounding and keyed to the spindle H and surmounting the plate or disk F, and K is the handle or lever, of common construction, pivoted to an extension ot' the collar in a position to be lowered into the recesses m successively when the plate is turned, to lock the plate and spindle together, when IOO desired, as hereinafter described, and capable of being raised out of the same to permit turning of the spindle independently ofthe table.

Owing to the foregoing construction an open switch will be automatically closed by the iiange of the wheel which lirst strikes it, the pressure against the switch-rail forcing the spindle H, through the medium ofthe bar G, into the position shown in Fig. l ofthe drawings, wherein the targctL faces the approaching trains,indicating the open condition oi' the switch, and,owing to the normally-locked con-Y nection ot' the table F and spindle due to the position ofthe lever K within a recess, @inthe turning of the spindle also turns the table to the limit of play of the crank Z, the upper part of the clutch being raised by the torsion out of contact with the lower stationary part and returned into its normally -locked position when the turn is completed.

After an occurrence like the one just described the switch is readjusted by hand by lifting the handle K out of the recess m and turning it back-thus independently oi' the table F, which remains stationary during the operationwto the fullliinit ofplay (ninety degrees) of the crank Z, where it will be in position to enter another recessmr. the device then being ready for another automatic operation, and the target extending` lengthwise of the track. It will thus be seen that the purpose of the four recesses in the plate F ninety de grecs apart is to permit, when desired, resetting of the switch and target, and locking of the table and spindle after each automatic op eration.

`'Vhat I claim as new, and desire to secure by Letters Patent, is-

l. A switclrstand having a standard, yr, and base r', containing a rigid clutch portion, D, a recessed annular table, F, upon a cylinder, E, having teeth at its lower extremity to engage with the clutch portion D and afford a clutch, a spindle, H, extending through the device, and provided at one extremity with a crank, Z, constantlyoi'l a dead-center, a switch-4 bar, G, connected with the crank, and a lever,

K, pivotally connected to the spindle, to enter a recess in the table and interlock the spindle with the table, whereby the turning of either shall simultaneously turn the other. substantially as and for the purpose set forth.

2. A switch-stand having a standard, Ir, and base i", containing a rigid clutch portion,

D, a recessed annular table, F, upon a cylinder, E, having teeth at its lower extremity to engage with the clutch portion D and to afford a clutch, a spindle, H, extending through the device, and provided at one extremity with a crank, l, constantly olf a deadcenter, a switch -bar, G, carrying a yoke to receive the crank Z, and a lever, K, pivotally connected to the spindle to enter a recess in the table and interlock the spindle with the `table, whereby the turning of either shall simultaneously turn the other, substantially as andi'or the purpose set forth.

Ina switch'stand, the base r', having a iiange, q, in combination with a bracket, B, provided with a recess, o, to receive the flange q, and ali-'ord means for securing the stand to be supported on a single head-block, substantially as described.

Ll. In a switclrstand, the base r', in combination with a bracket, B, provided with ribs p, affording ways for the sliding yoke of the switch-bar and stops for the base, substantially as described.

5. ln a switchstand, the baser. having a iiange, g, in combination with a bracket, B, provided with a recess, o, to receive the iiange p, and afford means for securing the stand to be supported ou a single head-block, and ribs p on the bracket, affording ways for the sliding yoke of the switclrbar and stops for'the base r', substantially as described.

G. A switch-stand comprising, in combination, a standard, r, and base r', provided with a flange, q, a bracket, Bhaving a recess, o, and ribs p, a clutch portion, D, rigidly secured within the standard fr, a recessed annular table, F, provided with a cylinder, E, havl ing teeth at its lower extremity to engage with the clutch portion D and form a clutch, a spindle, H, extending through the device, and provided with a crank, Z, constantly oft'a dead-` center, a switch-bar, G, carrying a yoke to receive the crank Z and move upon the ribs j), and a colla-r, I, keyed to the spindle, and provided with an extension carrying a pi-voted lever, K, the whole being being constructed and arranged to operate substantially as described.

AXEL A) s'raoM. ln presence oi- MasonT BRoss, WM. Santen.

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