US1284559A - Switch-frog. - Google Patents

Description

T. C. BARRETT.

SWUCH FROG.

APPLICATION F!LED MAR. 22. 1918.

Patented Nov. 12, 1918.

THOMAS C. BARRETT, OF HAVERI-IILL, IOWA.

SWITCH-FROG.

Specification of Letters Patent. Patented NOV. 12, 1918.

Application filed March 22, 1918. Serial No. 223,970.

To all whom it may concern:

Be it known that I, THOMAS C. BARRETT, a citizen of the United States residing at Haverhill, in the county of Marshall and State of Iowa, have invented certain new and useful Improvements in Switch-Frogs, of which the following is a specification.

This invention relates to improvements in spring frogs such as used in connection with railroad switches and it is the principal object of the invention to provide a frog which can be fastened to the usual tie in a manner such as will allow the same to be quickly and easily removed should it become necessary.

Another and equally important object of the invention is to provide the frog with a novelly formed filler, which, as will be understood, is used in conjunction with the frog base; the same having its sides extended, thus, permitting the cap fastening bolts to be engaged and removed with ease and despatch and without the necessity of first removing the tie, as is now the case.

. The improvements in the details and arrangement of parts will be apparent from the inspection of the accompanying drawings, in connection with the specific description hereinafter contained, and wherein the preferred embodiment of the invention is disclosed for the purpose of imparting a full understanding of the same.

In the drawings:

Figure 1 is a top plan of a spring type of switch frog showing my improved device applied thereto,

Fig. 2 is a transverse section through the frog base, filler and cap. and

Fig. 3 is a fragmental top plan of the base and filler, the rivets fastening said filler to the base being shown in section.

Having more particular reference to the drawings, in connection with which like reference characters will designate corresponding parts, 1 represents the conventional type of spring frog in its entirety, said frog, of course. being provided with the usual wing portions 2. said portions having laterally extending lugs 3 formed thereon and adapted to be engaged by a means, hereinafter described. whereby the wings and frog will be positively secured to a tie against creeping.

Base plates 4 are provided and are secured to the lower portion of the frog 1 by a suitable means, and are adapted to be arranged upon the adjacent ties, generally indicated by the numeral 5. To the upper faces of certain of the extremities of said base plates, filler plates 6 are secured and as will be noted, having their opposite sides extended for a distance beyond the adjacent sides of the base plates 4 as indicated by the numeral 6. A plurality of openings 7 are formed in the extended sides 6' of the filler plates in order that the suitable fastening means may be passed therethrough.

Caps 8 are provided and are arranged over the outer ends of the laterally extending lugs 3; said caps having laterally bent portions 9 formed with apertures capable of beingalined with the apertures or open ings 7 formed in the extended sides 6 of the filler plates 6. With the openings alined, bolts 10 are passed through the filler plates and caps and locking nuts then turned into engagement with the screw threaded portions of the same. Obviously, by so connecting the fastening caps to the adjacent filler plates, the same may be readily disengaged therefrom as it becomes necessary. inasmuch as the sides of the several filler plates are extended beyond the adjacent sides of the base plates, permitting ready access to the fastening devices or bolts. In this way, considerable trouble and loss of time is eliminated, since, should for any reason, it become necessary to remove the fastening caps 8, the bolts 10 are in positions to facilitate such action.

From the foregoing, it will be appreciated by workers skilled in the art that I have provided an exceedingly desirable and practical fastening for the caps of spring switch frogs and by this construction. have obviated the necessity of removing the tie or ties preparatory to the removal of the base plates, filler plates. and caps. In many instances, these filler plates and base plates are fastened to their respective ties. in manners such as practically prevent their removal in the event that repairs thereto are necessary, hence, incurring great loss and Waste.

Manifestly, the construction shown is capable of considerable modification and such modification as is within the scope of my claims, I consider within the spirit of my invention.

I claim:

1. In combination with a frog. a base therefor and a tie receiving said base, a filler arranged on the base having its opponected to said extended sides.

2. In combination With a frog,

therefor and a tie receiving said base a cent sides of the base and the tie, a cap receivable on said filler, and removable fastening means engaged with the cap and the filler.

In testimony whereof I aifix my signature hereto.

a base filler arranged on the base having the opposite sides thereof extended beyond the adja- Copies of this patent may be obtained for THOMAS C. BARRETT.

five cents each, by addressing the Commissioner of Patents,

Washington, D. C.

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