US1752493A - Railway signaling - Google Patents

Description

April 1930. F. c. LAVARACK ET AL l,752,493

RAILWAY S IGNALING Filed Aug. 4, 1925 Patented Apr. l, 1930 UNITED STATES FREDERICK C. LAVARAGK, OF

MONTCLAIR, NEW JERSEY, AND DANIE-L OF ROANOKE, VIRGINIA W. RICHARDS,

RAILWAY S IGNALING Application filed August 4, 1925. Serial No. 48,030.

This invention relates to raiways, more especially to railway track circuit signaling and particularly to a support for a cable bonded to the rail.

In practice, as is well understood by those skilled in the railway signaling art, it is necessary to electrically bond an electrical conductor, as a cable, to the web of a rail. This cable, especially, if of the form known as parkway cable, as is now commonly used, is buried in the ground and emerges therefrom adjacent the point where it is to be connected to the rail. It has been found necessary to rigidly attach this cable to the rail by means other than the bonding connection so that in case the rail vibrates unduly, the eifect will not be concentrated at the point of bonding, as the cable would soon break. F urthermore, if the rail runs unduly a severe strain, perhaps breaking the bonding will occur unless the cable is attached rigidly to the rail at some point on the cable where the full cross section of the cable may be taken advantage of. e

A principle object ofapplicants' invention is to provide a means for supporting a cable on a rail so that the difficulties hereinbefore mentioned will be avoided.

Other objects and advantages will appear as the description of the particular physical embodiment selected to illustrate the invention progresses and the novel features of the invention will be pointed out in the appended claims.

In describing the invention in detail and the particular physical embodiment selected to illustrate the inventon reference will be had to the accompanying drawing wherein has been illustrated a preferred physical embodiment of the invention and wherein like characters of reference designate corresponding parts throughout the several views in which:

Figure 1 is a side elevational View of a fragment of railway rail with our invention applied thereto; Fig. 2, is a cross sectional View on the plane indicated by the line II-II of Fig. 1; Fig. 3, is a cross sectional View on the plane indicated by the line III-III of Fig. 1; Fig. 4, is a View illustrating a clip used with the invention, before being formed; Fg. 5, lllustrates a perspective View of a rail. 2 designates a bonding pin used to mechancally and electrically attach the bared end 3 of cable or wire 4 to the web' of the rail 1.

In order to rigdly support cable 4 and hold the same firmly to the rail at a point where the 'ull cross section of the wire or cable may be availed of, applicants provide two similarly formed but oppositely disposed clamping plates 5 and 6. These plates have an orifice'in each end and are disposed on opposite sides of the cable 4 with plate 6' bearng against the edge of the flange of the rail.

Applicants pass the hook 7 of a hook bolt 8 through the orifice of each plate and rest the end 9 thereof on the upper face of the flange of the rail.

The threaded end of the hook bolt is passed through the lug 10 of the rail clip, designated as a whole by 11 and the rail clip is fitted to the fiange of the rail as shown in Fig. 2, and then the nut 12 is put in place and tightened.

From the foregoing description it will be readily understood that the cable 4 is rigidly and firmly attached to the rail l at a point where the full cross section of the wire may be taken advantage of and that if the rail vibrates, this vibration will not be concentrated at or about pin 2 because the cable being held rigidly at the cable support, the portion 3 and the rail Will move together, not independently. Furthermore if the rail runs the strain will be applied to the support and not to the pin 2.

Applicants having described their inventon and a particular physical embodiment selected to illustrate the invention, nevertheless, desire to have it understood that the form selected is merely illustrative and does not eXhaust the possible` tangible embodiments of the means underlying the inventon.

What we claim and desire to secure byLetters Patent of the United States. is:

l. As a cable support adapted to hold a cable firmly to a rail, the combnation of a clip adapted to engage a flange of a rail of a hook bolt adapted to be held in place on one edge of the opposte fiange of a rail by the clip and oppostely dsposed orficed clamp- 5 ing plates holding a cable therehetween and against the other edge of the rail fiange by having the hook of the bolt pass through both the orifices forned in one end of the plates and the o'fices formed in the other end of the pletes saidhook bolt adapted to have the end of the hook rest on the upper face of the fiange of the rail.

2. As a cable support for ho1dng"a"cable firmly to a rail; a clip fo'ned for engagement With a rail fiange and adapted to bear both onthe edge and` theupper'and the lower face-and formed with a depending lug formed with an o'ifice ;a hook bolt passing through the" o'rifice in the said lug and-provided With a nutbearing thereagainst; a clamping plate adaptedbobear againstthe opposite edge of the flange of the rail and ormed with an orifice in each end; another clamping plate opposed tothe first clamping plate and forned with anorifi'ce neach end matching the orfice of the first nentioned plate, and the hook of the` hook bolt adapted to" pass through the o'rifice and *adapted u to have its free end rest on theupper :face of the fiange of the rail 80 Whe-'eby whenthe nut is'tightened with a cable between the platesell parte are adapted to be held firmly and mnovably to the rail.

FREDERICK C. LAVARACK. DANIEL W. RIGHARDS.

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