US1008003A - Switch-stand. - Google Patents

Description

L o. ANDERSON.

SWITCH STAND.l APPLIOATION FILI-1D FBB.23, 1911. 130085003, v Patented Nom?, 1911.

2 SHEETS-sum1 1.

' P. C. ANDERSQN.

SWITCH STAND. Y APPLIGATION 1 I'1;E 1q;1-EB.23,1911.

1,908,003, v Patenneamm; 1911.

o D D i ff if Z j l. 30H M3 5 WWW/ww tdTlflEtl PATENT OFFICE.

iiltleil'l C. ANDERSON, OF CINCINNJATI, OHIO, ASSIGNOR-TO THE AMERICAN VALVE &

METER COMPANY, OF CINCINNATI, OHIO, A CORPORATION OF OHIO. 4

specific-atten of Letters raient.

swrrcn-srann.

Patented Nov. 7, 1911.

usual manner', eXcept by separate means, such as a foot treadle or lever for operating t ,tl Kidd/filth Application filed February 23, 1911. Serial No. 610,303.

me ai om tt concern:

,de own that l, FRANK C. ANDERSON, a citi/ien o i'vthe United States,residing at Cincinnati, in the county of Hamilton and State' otizlhio, have invented certain new useful improvements in Switch-Stands, et which the following is a specification.

My invention re' es to improvements in switch stands of At8() degree throw or si 'teton type, and more particularly to the position and arrangement of the crank and A pin ot the operating shaft relatively to the track, tc the ulcrum head of the. operating shaft and to the movement of the crank pin Hlively to the track as shown'in my coid application, Serial No. 594,465.

The object of my invention is to construct and arrange a switch stand of the ordinary itil); degree throw type in such a manner the switch stand can be installed and operated independently ont switch interlocking mechanism and operate to throwthe si ch points and targetin the usual man-A ner, and which is adapted to engage and opmay he installed either simultaneously with or subsequently to the installation of said itch stand, and connected to said switch and operated thereby in such a manas to operate thel switch interlocking lvisita, switch Apoints and target at a operation ot the opera-ting lever. .ier object ot my invention is to so and arrange the crank and crank the cperating 'shaft of the switch d ci? 'the ordinary 180 degree throwton type that theswitch interlocking iiiiiechanism, switch points and target will he operated when the switch-is being irown to open or closed position, hy i le throw of the .operating lever.

etoliore switch stands of the usual i90 ree throw type have been Kconstructed arranged with the crank set at right es to the track when the switch is in fr open or closed position, and when so and, it has been impossible to operate )cking mechanism in connection with switch stand by a single operation of the operating lever without an entirely dierenttype out switchnstand, consisting of one or more levers and various combinations ot" mechanism. lt has also been impossible to operate-interlocking mechanism in connection irijtha switch stand constructed inthe crate switch interlocking mechanism whichA the interlocking mechanism independently of the operation of the switch stand, thus requiring two operations by the operator in opening nthe switch. Thus when'switch stands of the ISO'degree throw type were installed, .it was impossible to install there- 'with interlocking mechanism which could be operated in connection with said stand by a single operation'of the throwing lever but an additional lever or foot treadle, and an additional operation to operate the inter'locking mechanism' would be required.'

lt will, therefore, be seen that I provide means whereby the ordinary switch stand.

of this type may be utilized and installed and operate the switch in the usual manner,

either separat-ely'or'in .connection with in terlock'ing mechanism, as desired, thus permittin'g the installation of the switch stands and interlocking .mechanism at different times if desired and still be enabled to opcrate the interlocking mechanism and switch stand by one Aoperation of the throwing lever.

My invention consists 'in providingv a switch stand of the ordinary 180 'degree throw' skeleton't-ype, having an operating shaft with a crank thereon, with, a crank pin on said crank set'in such a manner relative ating shaft at right angles to the track that said crank pin willl move across .said line in f an arc ota circle or in a direction substan tially parallel with the track suliiciently to operate interlocking mechanism before the movement of 'said crank pin throws .the switch points ,to open position My invention also consists in the peculiar construct-ion', combination and arrangement or" parts as herein set forth and claimed.

ln the accompanying 'drawings which serve to illustrate the construction, arrangement, application and use of my invention: Figure l 'is a plan View of a switch stand equipped with my invent-ion and installed separately and independently fromv switch interlocking mechanism. Fig. 2is,a diagrammatic view illustrating the peculiar positioning or arrangement of the crank and crank pin` of theoperating shaftgwith relat-ion to the switch stand. Fig. 3 is aside elevation partly in section showing a preferred switch points. Fig. 4 is a diagrammatic view showing means for connecting the opery ating shaft with interlocking mechanism.

Fig. 5 is a plan view similar to Fig. 1, but

showing interlocking mechanism adapted t0 be operated by my invention, in connection with the switch standby one operation of the operating lever. Fig. v6 is a front elevation of the switch stand of the ordinary 180 degree throw skeleton type, the crank pin being shown set off of a line drawn centrally through the operating shaft at right angles to the track. .Fig 7 is a diagrammatic view showing the different positions of the which are fastened upon ties 3, and upon which the point rails 6 are adapted to'slide ,into and out ofengagement with the stock ra1ls.4 in opening and closing the switch.`

The feet 2 of the switch stand are provided with lugs 7, which are adapted to coincide with slotsin the attachments which may be used in connection with the switch stand,

such for instance, as interlocking meehahism.

shown in Fig. 5. The switch stand 1 has a top plate 8, provided with slots 49 and 9 and is of the usual construction of switch stands ofthe 180 degree type. It is provided with a cross brace l() to which is fastened a strap 11 adapted lto form a lower bearing for the operating shaft 12 of the switch stand. Another strap 13 is fastened atthe top of the Switch stand, and forms an upper bearing for the main operating shaft 12.

To form a suitable lower support for the target shaft 14. T, provide a cross supporting arm 15. formed integral with the switch stand, and provided with an enlarged central portion 16 to receive the target shaft 14.

The main operating shaft 12 is provided with the usual fulcruin head 17 on the top of the switch stand top plate 8. to which is pivoted the operating lever 25 in the usual manner. The fulcrum head 17 'is adapted "to abut against the stops 18 and 18 provided on opposite sides of the top plate S.

' The target shaft 14 is adapted to be thrown 90 degrees when the operating shaft is beingthrown 180 degrees. This is accomplished in the usual way, by means of a target shaft operating arm 19, securely fas-- tened to the target shaft. and extending over the fulcrum head 17. The fulcrum head is Aprovided with a stud 20 on the top thereof adapted to engage a slot 21 in the target shaft operating arm 19.

My invention which add to a switch stand will now be described. The bottom lend of the operating sha-ft 12 is provided with a crank 22, which may be either formed integral with the 'operating shaft 12 or otherwise fastened securely thereon. The

crank pin 26 on said crank when in its nor-l mal posit-ion, (that is when the switch is closed) will set five or more degrees ofi' of a line drawn centrally through'l the operating shaft at right angles to the'tiack, and is adapted to move across said line when the switch is thrown to open position. Suitable holes 23 shown in Figf, are preferably provided in the operating shaft 12 just above Athe support 10, for the operating shaft of lnormal position of the crank 22 is' shown in solid lines. The distance from its normal position to its first dotted line posit-ion shown is equal to 40 degrees, and the distance from its solid line positionvto its farthermost dotted line position is 180 degrees, thus coinciding with the distance that the fulcrum head 17 is adapted to move, the fulcrum head also being rigidly secured upon the operating shaft 12. In Fig. 2 an are 31 is shown drawn from the center line of said pin 26 to the same center shown in its first dotted line position, and a straight line, is drawn between the centers forming a chord 28 across the arc. This is done to'illustrate the slight distance that the pointrail would to the rstdotted line position, and as a y rule, the connections of t-he operating rod and the connections between the operating rod and the point rails will imperceptibly vield that amount without injuriously affect.- ing or springing the connect-ions. Itis evident that when the crank 22 has reached its rst dotted line position, that the point rails then begin to move away from the stock rail. As the movement of the crank is continued thc point rails continue to move outwardly until the crank has reached its extreme position, shown in dotted lines. amounting to T40 degrees from its first dotted line posi-4 tion. or 180 degrees from its first'position which is .shown in heavy lines. The fulcrum head 17 during this movement of said crank pin has moved 180 degrees from slot 9 in the top plate 8 to the other slot 9 diametrically opposite.

iVhile I have shown thecrank pin disposed at an angle of 20 degrees oli. of .a

is-fi line drawn centrally through said operating shaft at right angles to the track, I do not wish to be limited to this yexact angle, but the same can be varied to suit the convenience of the particular connecting mechanism for the attachments.

The distance of the throwof they switch points is determined by the relative distance of the center ofthe crank pin with the center of the operating shaft, for with my invention the point rails are operated by a movement of 140 degreesof the crank pin.

In Fig. 6 I have shown the movements-of an interlocking lunger 29 with relation to an interlocking ar 30 when operated with my invention, and from which it will be seen that the plunger is withdrawn from engagement with the interlocking bar during the first 40 degree movement,` of the operating crank pin substantially parallel with the track, and thatit.ren1a.ins disengaged from A said interlocking bar during the remaining movement of 140 degrees to open the switch, and will not rengage the interlocking bar .r unt-il the switch has been thrown to closed position.

I claim: l. In a switch stand, a vertical operating to the track when the switch is in either open or closed position, said crank pin being adapted to move across said line .when the switch is thrown from one position to another, a throwing or operating lever adapted to be thrown more than 90 degrees', and means for operatively connecting .said crank to the pointrails of a. switch, for the purposes set forth.

2. In a switch stand, an operating shaft with a crank thereon, a crank pin-on said 1crank, set off of a line drawn centrally through said operating shaft atright angles to the track, and connected to the point rails ofa switch, and means for operating said shaft to throw said prank pin across said line in an arc of a. circle or on a line substantially parallel with the track without moving the point rails to open position, substantially as and for the purposes specified.

' l FRANK C. ANDERSON.

Witnesses:

JAMES N. RAMSEY, WINONA DOAN.

Images