US1028729A - Rail-joint. - Google Patents

Description

' G. A. HUMASON.

RAIL JOINT APPLIQATION FILED AUG. 21, 1911.

Patented June 4, 1912.

.7 UNITED STATES rA'rnNT OFFICE.

a registeringwith the recess a? and shoul- GRANVILLE A. HUMASON, or SHREVEPORT, LOUISIANA, ASSIGNOR, IBY DIRECT AND MESNE ASSIGNMENTS, 1O HUMASON RAIL JOINT COMPANY, OF SHREVEPOR'I, LOUISIANA, A CORPORATION OF LOUISIANA.

RAIL-JOINT.

1911. Serial No. 645,105.

To all whom it may concern:

Be it known that I, GRANVILLE A. :HUMA- so), a citizen of the United States, residing at Shreveport, in the parish of Caddo and State of Louisiana, have invented certain new and useful Improvements in Rail- Joints; and I do hereby declare the following to be a full, clear, and exact description V of the invention, such as will enable others skilled in the art to 'whichit appertains to make and use the same.

My present invention relates to improve-' ments in rail joints, and the object of the invention is to stitfen and. strengthen the joints of the rails, and yet permit of longitudinal expansion and contraction. Inaddition to these.advantages, the construction of the rail willin a large measure prevent the hammering or pounding of the car wheels as they pass from the end of one rail 7 to the adjacent end of the next rail, and also I in a large measure prevent the 'dentmg in of the ties, or injury to the chairs from excessive vibration. Furthermore, the tendency of the end of one rail to sag down when the wheel passes over it, causing the adjoining rail to strike the moving wheel, is in a large measure obviated, thus preventing the'creeping of the track. These and other advantages in the herein described construction will be understood by reference to the accompanying drawings, in which the same parts are indicated by the same letters throughout the several views.

Figure 1 shows a'side elevation ofthe rail with the fish plates applied, showing one form of the device. Figsi 2 and 3 are details showing the abutting ends of the two, rails forming the joint shown in Fig. 1. Fig. 4 shows one of the fish plates. Fig. 5 shows another of thc fish plates. Fig. 6 shows a section along the line 66 of Fig. 1, and looking in the direction of the arrows, and Fig. 7 shows a modified form of rail joint.

In Figs. 1.to 6, A and A represent two abutting rails, whose webs are cut away in an ical form, .as at a, and also pro vided '1 1 the usual holes a for the bolts B passing through the angle'platesC and J. "llic-base-of the rail A is preferably cut away t oitm .a tongue (1,, with shoulders ders a", respectively, on the adjacent rail.

tongue at of the rail A.

Moreover, the web of the railA may be cut away, as at a", to register with the curved the two rails interlock at the base, and the curved portion a serves to resist vertical pressure, while the construction prevents lateral displacement, and therefore strengthens the'rail at the joint against the accidents due to excess of lateral pressure. The two angle plates C and C',shown on a smaller scale in Figs. 4 and 5, are provided the one with an elliptical lug a, projecting through the elliptical slot a (see Figs. 1 and 7) in the web of the adjoining rails, and engaging in the elliptical redess c in the angle plate C. By having this tongue 0 made integral with the fish plate C, great strengthand rigidity are secured, and by having the socket c extend only partly through the wall of the fish plate C, the vertical strength of said fish plate is less impaired than if the tongue passed clear on through. The two members are held in engagement by the bolts B in the usual way. The elliptical tongue is p'rovidedwith a slight clearance at each end with regard to the rails, so that they may-expand and contract freely; but at the same time, the flat top and bottom surfaces of the ellipse may transmit the down Patented June 4.. 1912.

Thus the ends of v thrust of the rail joint, and cause the end of one rail to support the other, and also cause the two fish plates to add great vertical strength to the joint. 'It is preferred to have the fish plates in the form of angle irons, but any ordinary shape-of fish plate maybe adopted, if desired, and moreover any suitable form of chair may be added, if desired butthis is not ,a part of my invention, and. is not shown herein.

- In Fig. 7, the two rails are shown as abutting vertically in the usual way, without the interlocking feature shown in Figs. 1, 2, and 3. It will be evident that the fish plates or angle plates shown in Figs. 4 and 5, and hereinbefore described, may be applied as well to a rail joint of this description as to a joint of the description shown in Fig. 1.

Having thus described my invention, what T claim and desire to secure by Letters Patent'of the United States is l." The combination with two rails having I each provided with bolt holes, of a pair of fish plates, the one provided with an elliptical tongue integral therewith, and the other I provided with an elliptical recess adapted to receive said tongue,

the said tongue fitting in said elliptical opening in the webs of said rails, and being provided with a slight clearance'at either end, with bolts passing through said openings and holding said fish plates against said rail, and holding the end of said elliptical tongue in. said elliptical recess in said fish plate, substantially as described.

. 2. The combination with two rails having their webs provided each wlth a semi-elliptical slot adapted to form an elliptical opening when the two rails are abutting, and each provided with bolt holes, of a pair of iish plates, the oneeprovided with an elliptical tongue integral therewith, and the other provided with an elliptical recess adapted to receive said tongue, the said tongue fitting in said elliptical opening in the webs of said" rails, and being provided with a slight clear- ,ance at either end, with bolts passing through said openingsand holding said fish plates against said rail, and holding. the end of said elliptical tongue in said elliptical recess in said fish plate, the bases of said rails being cut away to form an interlocking joint, substantially as described.

3. The combination with two rails having their webs provided each with a semi-elliptical slot adapted to form an elliptical opening when the two rails are abutting, and

each provided with-bolt holes, of a pair of fish plates, the one provided with an ellipti cal tongue integral therewith, andthe other provided with an elliptical recess adapted to receive said tongue, the said tongue fitting in said elliptical opening in the webs of said rails, and being provided with a slight clearance at either end, with bolts passing A portion a of the first rail, and being prov-id'ed with a recess to receive said tongue at, whereby an interlocking 3o1nt is secured,

which will both assist in securing vertical rigidity and also in preventing lateral displacement, substantially as described.

In testimony whereof, I aflix 'niyvsignw tnre, in presence of two witnesses.

GRANVILLE A. HUMASON.

lVitnesses1- T. E. WVILLIAMs, E. W. Dorian.

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