US1176051A - Switch-lock. - Google Patents

Description

G. H. GUINN.

SWITCH LOCK. APPLICATION HLED MAR 3. 1915- 1,176,051 Patented Mar. 21, 1916.

THE CQLUMBIA PLANOflRAPl-l 2a.. WASHINGTON. D. c.

GEOItGE H. GUINN, OF CINCINNATI, OHIO, ASSIGNOR TO CHARLES S. GUINN, 0F WAYNESZBURG, KENTUCKY.

SWITCH-LOCK.

To all whom it may concern:

Be it known that I, GEORGE H. GUINN, a citizen of the United States, anda resident of the city of Cincinnati, in the county of Hamilton and State of Ohio, have invented certain new and useful Improvements in Switch-Locks, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification.

My invention relates to locking devices for street railway switches in particular, although it may be applied to general railroad work as well. In locks of this nature, the effort is to provide a means for insuring a positive complete throw of a switch, and for so locking the switch tongue after the throw that it will require a positive operation to throw it back again. 7

It is the object of my invention to provide a locking deviceoperated from the switch tongue itself so as to provide for cars coming both ways on a single track,

and locked by toothed disks,which is completely inclosed in a weather and dirtproof box of convenient size, and capable ofbeing packed with fluid grease orthe like. This I- accomplish by that certain construction and arrangement of parts to be hereinafter more specifically pointed out and claimed wherein a rod from the switch is passed through stuffing boxes into the lock casing, andthrows the locking disks referred to by means of an eccentric stud, as will be described.

In the drawings, Figure 1 is a perspective j view of the switch and lock. Fig. 2 is a longitudinal section of the lock. Fig. 3 is a vertical section of the lock taken along the axial line of the switch rod, which for clearness is shown in elevation. Fig. 4 isa per spective view of the sliding block. Fig. 5 is a perspective view ofthe slideway for the block.

The switch shown in the drawings is the ordinary street railway switch. having the switch tongue 1, which is to be thrown by the inserting of av switch iron, in the space between the side of the tongue andone of the rail members 2, 2, of the switch. To the web of one of the rails is secured a box 3, preferably of iron, which has large bolts 4, 4, which pass through the rail for so mounting the box. A rod 5 is secured to the switch Specification of Letters Patent. Patented Mar. 21, 1916.

Application filed March a, 1915. Serial No. 11,685.

the rail to which the box is mounted, and

enters the box near its upper left hand corner through a stuffing box 7. A guide rod 8 extends out from the adjacent front corner of the box, through another stufiing box 9, and a cap 10 is fitted over the boss 11 in the box that the stufling box is mounted in. These two rods are the only members of the lock that pass from the outside into the box, and from the description above it is plain that stufling boxes completely protect their entrance. The top 12 of the box is bolted down by means of countersunk bolts 13, 13, and the box may be filled with oil or grease, that will preserve the lock in perfect condition after the severest flood or freezing test.

The structure of the lock is as follows. A framework comprising end plates 14 and 15 and connected by rods 16 is set into the box, and suitably secured in a sidewise position, and resting on lugs 17 17, at four points on the bottom of the box. Secured to the forward end piece 14 is a fixed toothed disk 18, which has a central aperture in which is journaled the tubular member 19. A disk 20, having an eccentric stud 21 on of the tubular member 19. mounted on the other end piece 15 and extends up into the inner end of the tubular memher, said tubular member being adapted to slide up and down on said rod.

A toothed disk 24 is pinned at 25 to the tubular member 19 and a spring 38 secured to'the end piece-15 bears withits other end against the collar portion of said toothed disk 24. The eccentric pin 21 is to be actu ated-by the rod 5 connected to the switch to-n ue as described and this movement will turn the disk 20, the tubular member 19 and force the toothed disk mounted on the said member downwardly against its spring presthe fixedtoothed disk. A proper positioning of the eccentric stud and proper sized teeth on the disks, is desired so that a throwing of the switch tongue from one side of the switch to the other will result in a moving of the two toothed disks with relation to each other just the distance of one tooth. A partial throwing of the switch tongue will then bring the apices of opposing disk sure before it can be free from mesh with a ofTthe two, rods are flattened out, and over teeth adjacent to each other and the spring pressure will then throw the switch arm over the rest of the distance, without further -work on the part of the operator of the switch. The springs will be strong enough to prevent any accidental j arring from caus ing the switch to split and the switch will' be looked, as the term is employed in this art. -The rod running from the switch tongue to the locking device has a straight line motion as it must pass through a Stu fiing boxias' described,and-accordingly means are-providedto transform straight into circular motion by means of the connection of;

said rod with the eccentric stud heretofore mentioned. Theguide rod which, asdescribed, has a mounting at the opposite side of the box from the rod-to the switch tongue,

is-sjecured to the latter rod and'the two form' a suitable connection for the eccentric stud, for the purpose mentioned. The ends 27 the-topand bottom of the flattened portions aremounted plates 28,28, said platesbeing} connected; together by means of'pins or bolts 29; that pass through the ends of the rods;

A block 30, of a size toslide in the space between the flattened rod ends and the top,

and bottom connecting and spacingplates now described, is provided, having" shoulders 31 at. each side to bear agains the inner This . -,sliide up and down to take up the motion necessary to transform the straight into the circular thrust desired, and thestud'will be;

free-torotate'in the; block, and to slide in the block so as to allow the, disk to ride in ;Wi't;h: the lockingdisk, and tubular member.

When a car-having flanged, Wheels, as, customaryt-rijdesover the switch c ming from the branching tracks onto the single track ofthe switch the tongue will be forced over aby-the-flangge of the w heels. Otherwise the operator of acar must insert his iron lin the switch positively throw the tongue :;.;toothed disklock, and its chief advantage liesin the fact that it is absolutely protect- Therehave been some devices working on a toothed disk principle in the art, but since itis a requisite for'such a structu-reto be securely. protected from weather and, street copies f this patent may be obtained for five cents each, by ll s i was hingtonhlfi I f- 1 conditions, there has not been much success as a result of, their use.

There are many modifications of my device which the mechanic Skilled {in theart structure in the device itself such as f9r exam-plain the method of transmission from the switch rod to the eccentric stud of' the device. These, however, are considered to be developments which it isonlynecessary could make to adapt the protected ratchet devicefor other railroad work, where other -meansof turning the switches are employed, such as levers and the like.

to mention to avoid implied'limitations in the claims that follow, to specific; structure.

where the same'is notdirectlymentioned in the said claims. t a

. Having thus described my invention, what Iclaim as new and desire to secure by Leta tersPatent, is p L In a device; ofthecharacter described;

in; combination witha; switch movable mem ber, a rod connected thereto, an inclose chamber forming member, an aperture in saidc'hamber member for the rod, astufl'n ing'box therefor, a fixed toothed member-in said chamber, a rotatable, toothed member spring pressed into connection therewith and slidingconnection between said roolv andv the movable rotatable member, for the purg P 5 described, H N p I 2: In combination, with a movabl it h member, an inclo'sed chamber forming mem-.

.ber, apertures at two sides of said chambermember, a rod passing through 7: each aper.-

ture, stuiflng boxes for said-apertures, one i lOO s of said rods connected to themovable switchmember, a toothed disk lock, and

whereby said rod engagesjsaid lock.

a. ln j'combination with ya mfovablta switch member,an inclosecl chamber forming me mber,f-ape' rtnres at two sides of; said chamber member, a'rod passing through each aper -:v

- ture,flstuifing boxes for :said apertures, one 1 V ,1: of. said rodsconnect'ed to-the movable switch :The device is b'lllll}. around 'a'slmple' member, "a rotatable toothed disk lock, and

means whereby said grod slidably engages,- sa-id-lo'ck. v ed trom'becoming cloggedlwith mud or ice.

, v oEoReE'oUI-NN.

' .Attest: 1

-M. T. BEALL,

1 K. SMITH.

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