US992351A - Metallic railway-tie. - Google Patents

Description

C. P. HAMMOND.

METALLIC RAILWAY TIE.

APPLIOATION FILED 11116.21, 1909.

Patented May 16, 1911.

'JNI/ENTOR f JT UNITED STATES PATENT OFFICE.

CHARLES P. HAMMOND, OF AMERICUS, GEORGIA.

METALLIC RAILWAY-TIE.

Specification of Letters Patent.

Application led August 21, 1909.

Patented May 16, 1911.

Serial 170.514,04.

To all whom #may concern:

Be it known that I, CHARLES P. HAM- MOND, of Americus, in the county of Sumter and State of Georgia, have invented certain new and useful Improvements in Metallic Railway-Ties; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improvements in metallic railway ties and more particularly to means for insulating tie-sections, the object of the invention being to provide means whereby two sections of a metallic tie can be rigidly connected together but electrically insulated from each other.

A further object is to provide the vertical web portion of a tie with laterally projecting anchors.

A further object is to so construct connecting means for a sectional metallic tie that said means shall also constitute anchors for preventing longitudinal displacement of the tie.

With these objects in view the invention consists in certain novel features of construction and combinations of parts as hereinafter set forth and pointed out in the claims.

In the accompanying drawings, Figure 1 is a side elevation of a tie embodying my improvements. Fig. 2 is a plan view of the same. Fig. 3 is a view on the line ac m of Fig. 1. Fig. 4 is a transverse sectional view on the line z of Fig. 2. Fig. 5 is a similar view on the line o cZ of Fig. 2. Fig. 6 is a section on the line c of Fig. 2, and Fig. 7 is a section on the line g-z, of Fig. 2.

1 represents a metallic tie comprising two sections 2 3. Each section of the tie comprises a vertical web portion 4 having lateral flanges 5 at its upper edge and wide base fianges 6 at its lower edge. The two tie sections are disposed in alinement with each other and the web port-ion of the section 3 is embraced at its inner end by a sheet 7 of fiber or other insulating material and the rear ends of this insulating sheet are bent outwardly as shown at 8. Two metal plates 9 are secured to respective sides of the web of tie section 3 and are bent outwardly as at 10 to lie parallel with the outwardly projecting portions 8 of the insulating sheet 7. Two metal angle plates 11 are secured to the respective sides of the web of tie section 2 and project some distance beyond the inner end of the webof tie section 3 so as to lie parallel with the insulating sheet 7 which embraces the said web portion of the tie sec tion 3. The flanges 11a at the upper and lower edges of the plates 11 lie parallel with the flanges 5 6 of the tie and the upper and lower edges of the insulating sheet 7 are flanged as at 7 a to lie between the flanges 11a of the plates 11 and the flanges 5 6 of the tie. With such construction, upward and downward displacement of the parts is prevented, and the use of insulating rings around the rivets 15 which secure the plates 11 and insulating sheet to the tie, is obviated. Both ends of each plate 11 are bent laterally or outwardly as shown at 12 and 13. The

outwardly project-ing portions 13 of the plates 11 lie parallel with the outwardly proj ecting portions of the insulating sheet 7 and rivets 14 secure these outwardly projecting portions of plates 9 and 11, together with the outwardly projecting portions 8 of the insulating sheet between them. Another metal plate 14a and an insulating sheet 14b are disposed between one head of each rivet 14 and the outwardly projecting portions 13 through which said rivets pass. The holes in the web of the section 3 through which the rivets 15 pass are made appreciably larger in diameter than the diameter of the rivets so that the latter are electrically separated from the tie sections and as vertical displacement of the plates 11 is prevented as above explained, electrical contact of the rivets with the web of the tie is prevented. Similarly the holes in the laterally projecting portions 13 of plates 11 are appreciably larger than the diameter of the rivets which pass through them. In order to further insure electrical separation of the rivets 14 from the laterally projecting portions 13 of the plates 11, and of the 4rivets 15 from the web of section 3 of the tie, ber ring washers may be disposed around the rivets where they pass through plates 13 and the web of tie section 3.

With the construction and arrangement above described the two tie sections are rigidly secured together but they are effectually insulated from each other and the laterally project-ing portions of the plates 9 and 11 constitute anchors for the tie in the roadbed and prevent any longitudinal displacement of the tie.

Having fully described my invention what I claim as new and desire to secure by Letters-Patent, is,-

l. A metallic tie comprising two sections, plates extending across the meeting ends of said sections and having laterally projecting members, other plates secured to one of said sections and also having laterally projecting members, insulating material disposed between the rst mentioned plates and one of said tie sections and between thev laterally projecting members of all the plates, and means securing the plates to the tie sections and the laterally projecting members of the plates together.

2. A tie comprising two sections, metal plates secured at the sides of the web of one section and embracing` the end portion of the other tie section and electrically insulated from the latter, said plates having laterally projecting portions, and means insulated from said lateral portions of the plates and connecting them with the lastmentioned tie section.

In testimony whereof, I have signed this specification in the presence of two subscribing Witnesses.

CHARLES I. HAMMOND.

Witnesses:

WILLrAM P. HAMMOND, E. D. SHEFFIELD.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. G.

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