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Publication numberUS1487244 A
Publication typeGrant
Publication dateMar 18, 1924
Filing dateJul 14, 1922
Priority dateJul 14, 1922
Publication numberUS 1487244 A, US 1487244A, US-A-1487244, US1487244 A, US1487244A
InventorsNic Krump
Original AssigneeNic Krump
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Switch for overhead two-rail tracks
US 1487244 A
Abstract  available in
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Claims  available in
Description  (OCR text may contain errors)

March 18 I924.


R P v, 0 I 5 q B M W M 4 N T ama/ W/ TA/Es s March 18 1924.

N. KRUMP swrrcn Fog OVERHEAD TWO-RAIL TRACKS 5 Sheets-Sheet 2 Filed July 14 1922 W/ r/l/Ess A P WWW March 18 1924.

N. KRUMP SWITCH FOR OVERHEAD TWO-RAIL TRACKS Filed July 14 1922 3 Sheets-Sheet 3 /NVE/V7'0R lVw Krum p.


Patented Mar. 18, 1924 umrsn STATE-S.


me new, or onIoAGo, ILLINOIS.


'Application fi1ed .Tu1y '14,'1922. SeriaiN o. 574,880.

To all whom it. may concern:

Be it known that I, N10 KRI'TM a citizen of the United States, and a resident of Chi-' cago, in the county of Cook and State of 5 Illinois. have invented certain new and useful Improvements in Switches for Over? head Two-BailtTracks, of which the fol-' lowing, when taken in connection with "the drawings accompanying and forming a part hereof, is a full and 'c'ompletespecification.

' This invention relates; to switches to bev installed in two'rail over-head tracks, that i is, two rail suspended tracks.

Among the objects of the invention are ,to obtain a two rail suspended switchwhich is easily erected and adjustedintofthe hori- .zontal planes in which the rails leading to and from it are placed; to' obtain what is known as a safety switch, that is, a switch which, when a trolley is approaching it on the rails leading to the free or movable ends thereof, said trolley cannot become derailed when theswitch is not properly set'to re- .ceive it; to obtain a switch of the kind named which comprises few parts, which is durable and not readily broken; and to obtain a switch which is easily set to'be in line with any of the sets 'ofrails at the free end thereof.


.Fig. 2 is a side elevation of said switch. Fig. 3 is a horizontal section on line 33 of Fig. 2, viewed asindicated by arrows. 7 p g i Fig. 4 is a vertical section online Q- L of Fig. 1,'viewed as. indicated "byarrows.

Fig. 5 is a ,view on an enlargedscale, 3 showing the, pivoted end of the switchfqAnd Fig. Gis a. side elevationof the parts illus j trated in Fig. 5. i a

Fig. 7 is a front'eleva'tionof thefmov'aole end of the switch. i i i A reference character appliedto fd'esignate "a given part indicates said part throughout the several figures ot the drawings wherever the same appears. 7

A. represents the suspended baseswhich supports the rails leading to" theswitchand a In the drawings referred to Fig. l' is a top plan view of a switch embodying the inalso one end of the switch, and through ,which" the depending bolts hereinafter described ejXtend downward to andthrough the chairs in which said approachingrails are "seated and secured, said chairs forming sub bases. 'B represents a suspended sub base which supports the pivoted'end'of the switch, andthe' chair of the rails of the track at that el'idof the switch. a, a, and b, b, respectively representapertures in bases Aand Bythrough which'bolts are extended tosecure said bases to'b'eams or other struc- "ture froin WhlChthB switch and rails are suspended. C represents an aperture in base A'throughwhieh bolt C extendsdownward to the chairs D, D, and 0 represents a like downward extending bolt, which extends rollers being in spaced relation corresponding withthat'otthe depressionsf, f. The rollers g, g, and depressions f, f, are so arranged'thatwhen the rails on the switch are in line with' the rails approaching the switch,

on whichever one of the tracks the switch is Fset, said rollers will be in corresponding depressions, thus advising the party operating the switch that it is properly set. X,

"X" represent tracks approaching the 's'Witc'hQandYrepresents thektra'ck approaching theswitchnt its -'opposite end. H, H,

represent "downward" extending bolts which are screw? threaded at both ends, the upper P ends thereof "Ib'eing adj' ustably secured in "screw threaded apertures' provided therefor in carriage G and thelow'er' endse'xtending through v apertures therefor in chair I, (Fig. 2), said chair being adjustably mounted on said bolts by nuts h,'j'h'. I The chair D is adj u'stabljyi secured at-the lower end of bolt QC-by lock-nuts "h, and in addition thereto said bolt C is adjustable in base A, by nut h. 72/ represents like nuts on bolts H, H, respectively, which maintain said bolts in adjusted position, in carriage J, J, represent bars or strips which are respectively secured to base A, by bolts J, J, and j, j, represent pulleys which are mounted on the ends of bars or strips J, respectively. K, K represent cords or cables which are attached to the carriage G and extend through pulleys j, j, respectively, and by means of which the carriage is moved to travel in the direction desired on track F, to properly set the switch. L represents a curved member which is secured to carriage G, as by bolt 1, and at its ends, by rods M, M, to member N. Member N is rotatably mounted on bolt C (Fig. 2) said rods M, M, extending through apertures provided therefor in wings n, n, of said member N. said washer is supported by nut n; Member L is curved so as to obtain the recess L, (Fig. 7), through which the wheels of a trolley travelling on the one of the tracks X, X, X, to which the switch is set, may pass; and the remainder of said bar L, on both sides of recess L, forms a bar against which the wheels of a trolley on a track to which said switch is not set abut, to prevent said trolley running oif its track until the switch is properly set therefor. Z, Fig. 2, indicates a trolley wheel passing through said recess L, either in entering or leaving the switch. 0, 0', represent the rails of the switch, and are formed by bending a rail, as at 0, Fig. 3, so that the curved part will fit to the ends of rails Y, Y, (which are correspondingly bevelled) and the remainder thereof will be parallel at the same distance apart as are the rails X, X, X and Y, of the tracks approaching and leaving the switch. P re resents a bolt in base D on which the rai s O, O, are pivoted. p represents a plate which rests'on the lower flanges of rails O, O, and through which the boltP also extends; P represents a bolt which extends through plate ;0 and into base D, by means of which said plate is forced down on to the flanges of rails O, O, to hold'said rails firmly to said base.

To operate the switch one or theother of ropes or cables K, K is pulled, and the carriage G thereby moved along track Funtil the switch becomes set for a given one of the tracks X,-X, X". The rollers g, g, of the carriage drop into corresponding recesses f, f, as the ends of rails O, 0, come in line with the ends of the rails X, X, X, respectively,'sogivingnotice to the person operating the switch, and when said rolls drop into the depressions relatingto the track to which it is sought to set the switch the rope or cablev which is being pulled is released. A trolley may then enter or leave the switch Member N rests on washer n, and

from or on to the rails to which the switch is set. When so entering or leaving the switch the trolley wheel Z may and does pass through the recess L in bar L, and in case, the switch being set for a certain track, a trolley approaches the switch on another of the tracks, the wheel of said approaching trolley will strike or abut against the bar L to one side of the recess L, and will be blocked thereby.

I claim:

1. In a switch for overhead two rail tracks, bases. adapted to be suspended, a metal strip attached to said bases and arranged to hold them in spaced relation, rails on said switch corresponding in length with the spaced relation of said bases, a curved track on one of said suspended bases, provided with depressions in spaced relation, a carriage, rollers on said carriage arranged to travel on said track, said rollers in spaced relation corresponding with said depressions in said track, means to move said carriage on said tracks, and said carriage provided with a curved member to obtain a recess'adapted to permit a trolley wheel to pass therethrough on to or from said switch rails.

2. In a switch for overhead two rail tracks, bases, additional bases and means to adjustably suspend said additional bases from said first named bases, a curved track on one of said first named suspended bases, said track provided with depressions in spaced relation, a carriage, rollers to said carriagearranged to travel on said track, said rollers in spaced relation corresponding to said depressions in said track, switch rails, means to adjustably suspend one end of said switch rails to said carriage and means to pivotally mount the other end of said switch rails on one of said second named suspended bases, tracks approaching said switch rails and supported by said second named and suspended bases, a curved member on the mov- ,able end of said switch, said curved member provided with a recess arranged to permit a trolley wheel entering or leavingsaid switch rails to pass therethrough.

3. In a switch for overhead two rail tracks, bases, sub bases, screw threaded bolts extending through said bases and through said sub bases, a curved track on one of said bases, in combination with a carriage arranged to travel on said track, means to indicate when said carriage is in a determined position, screw threaded bolts extending from said carriage downward and through an additional sub base, an additional sub base, nuts on all of said bolts, a two rail track pivoted on one of said first named sub bases at one end of said track and mounted on said additional sub base at the other end thereof.

4:. In a switch for overhead two rail tracks, bases, a curved track on one of said lSO bases, a carriage movable on said track, in on said bolts arranged to maintain said bolts comblnatlon W1th sub bases, one of said 1n a determmed posltion. sub bases dependlng from said carriage and the remainder thereof depending from said NIC KRUMP' s first named bases, the means for depending Witnesses:

said sub bases comprising bolts threaded at THos. J KELLEHER,

both ends thereof, in combination With nuts W. H. DREIS.

Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2590070 *Sep 30, 1948Mar 18, 1952Shelby John AMonorail carrier switch safety mechanism
US5193767 *Aug 22, 1991Mar 16, 1993Hsst CorporationGirder type switch track
U.S. Classification104/103
International ClassificationB61L23/00
Cooperative ClassificationB61L23/002
European ClassificationB61L23/00A