US1590235A - Metal crosstie - Google Patents

Description

M. v. GEARON METAL caossm: Filed oct. 2s, 1925 A' June 29 1926.

xNvENToR :f ZZLZ/.Gearon BY M 5.,

ATTORNEYS Patented June 29, 1926.

UNlTsn sTaTEs MICHAEL V. GEARON,

yor oIIICAGo, ILLINOIS.

METAL CROSSTIE.

Application filed October 25, 1925.

My invention relates to improvement-s in metal railroad ties, and it consists in the combinations, constructions, and arrangements herein described and claimed.

VAn object of my invention is to provide a metal cross tie for railroads whichv has great strength and resiliency.

`A further object of my invention'is to provide a metal cross `tie which can be readily made by automatic machinery, thus rendering the device economical to manufacture.

A further object of my invention is to provide a metal tie having special reinforcing means 'for that portion ci the tie just underneath the rails.

Other objects and advantages will appear in the following specification, and the novel features of the invention will be particularly pointed outin the appended claims.

My invention is illustrated in the accompanying drawings, forming part 0I' this application, in which Figure 1 shows a development of the blank from which the tie is made,

Figure 2 is a side view of a portion of a complete tie, the rails and a. portion of the tie being shown, in section, Figure 3 is a perspective view showing one of the reinforcing members,

Figure 4 is an enlarged sectional view of a portion of the tie, and

Figure 5 is a similar section at another point.

In carrying out my invention I make use 'of a single piece of sheet metal, preferably sheet steel. Figure 1 shows the piece in its entirety. It will be observed that there are eight plane sections at one vend, these sections being indicated at 1 to 8 inclusive. The sections1 are designed to be bent along the dotted lines, such as those shown atl, 22, 3a, etc. Sections 9, 10 and 11 are provided with corrugated portions, or portions stamped with a depression on one side and a corresponding ridge on the other. Thus, in the section 9, the depressions are shown at 9". At 95', in the same section, are shown oblong ridges between the depressions. The section 12 has a smooth surface, with the exception of the oblong ridges 121. The next three sections, 18, 14 and 15, respectively, are similar to the sections 9, 10V and 1.1 in that they have depressions, sach as Serial No. 64,878.

those'shown at 13x and oblong ridges, such asthose shown at 13y, while the last section 16 is similar to the section 12.

In forming the tie, the sections are bent along the dotted lines and are wrapped around in spiral form. Thus the first section 1, as viewed in Figure 1, would be bent on the line 1EL toward the rear of the plane of the paper. This would preferably be accomplished by placing it on a mandril so as to wrap the sections one upon another. The first two layers consisting of the eight sections would be plain. The next :tour sections would give a section on each side, i. e.,

thersections 9 and 11, one on the bottom, section 10, Vwhile section 12 would come on Vthe top, and further winding would bring section 18 into registration with section 9, section 14 into registration with section 10, 15 with 11, and 16 with 12. The corrugations or depressions', as stated, would have ridges on the opposite sides ot the sections, and these are so arranged as to cause the convex portions to enter the concave portions 0Iy the overlapping sections so as to ycause the sections to be nested inthe manner shown'in Figures 4 and 5. InFigure 4, it will be seen that the ridges 15y register with the ridges 11y of the section 11, while the depressions 15X register with the depressions 11x. In Figure 5, itl will be seen that the ridges 1Gy and-12y are nested. All of the sections 13, 14, 15 and 16 have extended flanges 13a, 14, 15a and 162L at each end. These flanges are turned under, as shown in vFigure 4, and are held to the coiled sections by 'rivets 17. y The coiled sections are spot-welded together, thus rendering the tie virtually a unitary structure having great strength in proportion to its weight.

In order to reinforce the tie at the portion thereof underneath the rails, I provide a sheet metal coil 18, such as that shownin Figure 3. This is a single strip of metal having thel convolutions spaced apart. The sides of the coils are provided with bolt or rivet openings 18)I to receive rivets 19 which pass through the body portion of the tie so as to hold the member 18 in positionunderneath the rail, see Figure 2.

The rails 2O are held to the tie referahly by means ci bolts 2]. whic pass n i litl its Weight. The sides being corrugated tend Y to add to the rigidity of the tie soY as to prevent sagging or bulging due to the vWeight of theload on the rails. rlhe reinfor ing member 18 is so placed thatthe thrust is along the Walls of the reinforcing Vineinber, thus add-ing to the rigidity of the device. rhe nesting of the corrugated portions, including the ridges and depressions, maires the coils compact and at the saine tiniel gives rthein the necessary strength to carry out the purpose intended When the flange portions 13%, le?, etc, are turned under, they firnil-y bind all ofthe sections together. f

A nietal` tie, such as that described, inay be inad'e to lit any railor-raii fastening, since' holes can -bc bored in the walls of the tie at any point',l and boltsorother suit.- ablejfastening devices may be passed therethrough, asshoivn at 2l in Figure 2. j

l ein awareV that metal ties inade of sheet coiled instal' portions have been used be-V fore. Such construction,appears in the patent to 5;. Gearon Sr., 963,542 of July 5, 1910.

In this-patent, however, it, was, necessary to e reinforce the tie with ballast, filling Within the; interiorvof the tie.v The,present tie, heweveryis an improvement .in that it re- `quires noballast filling dueto the corrugated forifnl ofv the tiey itself and the reinforcenient.

lt lieing plainly apparent that a variety of corriigations and depressions of different patterns can be stamped or fabricatedl in sheets of metall and the said sheets used to forni a tie by Wrapping, registering, nesting and Welding suoli. Stich. sheetsgtogether in a tie formingniandril and` folding, lap

ping and riveting theni in such form, Ik

vvishto have it known that this invention covers the use of any pattern of depression or, corriigation that may be, found advantageous to use in its construction either before g j y 1,590,235

`orl after the sheet is thus Wrapped, folded and lapped into the forni of a tie.

I claim:

l. A metal cross tie constructed of a single piece of sheet metal having` ysections coiled to forniy aplurality of layers, the layers of certain sections having corrugations adapted to nest Within similar corrugations of adjacent sections, and means for binding the overlapping 'sections together.

2. A nietal cross tie comprising a single sheet of nietalzfolded into a plurality of sections to forni a hollow structure'having a plurality oflayers, certai-n of the sections having conrngations arranged to nest With the corrugations of adjacentI overlapping sections, end' fianges carried by the oiiter'sections and being bentv over the ends of the nner sections, and ineans for securing the bent-oever flanges to the inner sections,

3, A railroad cross tie comprising asingle sheet of instal having sections Yfolded over one another, said sections being Welded together to forni a hollow body portion and certain sections having nested corrugations,

andi reinforcingnieinbers disposedl Withiny the interior of the tie, said reinforcing ineinbers comprising coiled metal sheets secured to the walls of the tie, certain of the Walls of the reinforcing sheets being disposed transversely With respect to the layers forining the ti'e body portion, whereby thel Weight of the load is transmitted through the planes of the transversely disposed. Wal-ls.

4. A railroad cross tie comprising sheets of inetal havin-g `a plurality of Y.sections folded together to forni a hollowl body portion, ineans for securing said folded .sec-

tions together, reinforcing members disposed vvithin. the tie underneath the i-'ail-bearing area, said reinforcing nien'ibers consisting of a single sheet of metal arranged-in rectanguiar-shaped coils, certain walls of said rectangular-shaped coils being disposed transversely with respect to the Walls of the main body portion, and rail securing members Apassing througlithe rails and having their lower portions disposed Within the` innerinost convolution of said reinforcing ineinber.

MicintnL v. enanos.

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