US907125A - Combination wood and metal cross-tie. - Google Patents

Description

L. P. BUUK,

COMBINATION Woon AND METAL T15.

APPLICATION PLE-D DEG. 4, E91?.

907,125. Patented. Dea 22, E508,

LEWIS P. BUCK, F WILMINGTON. DELAWARE.

COMBINATION `W001i) .AND METAL CROSS-TIE;

Speeiiceinon pi Letters .'Fetent.

flieten'ted Dec. 22, 1908.

Application mea'ncmlcr c, iso?. 4 sci-1u 'im 405,413.6.

.To all whom it may concern:

Be 1t known-that I, Lew-1s P. BUCK, a citizen of theUnited States of America., residing in the city of Wilmington, in the 5 county of Newcastle, in the State of Delaware, have invented acertuin new and useful Improvement in a :LndMetal Cross-Tie, of which the following is :i true and exact description, reference beine` had to the accompanying-drawings, which form a part thereof.

The present invention relates to railway cross ties, and has for its object the production of a .combinationV wood and metal cross tie so constructed 'as to have the resiliency 'and other desirable characteristics of the usual all Wood cross tie while at the some time possessing' the advantages of dursbil-f ity, strength, and large lbearingsurface of the metal cross tie.

The 'various features of novelty which characterize the invention I have aimed to point out with particularity in the claims annexed to und forming a 'part of tl1isspeciication. For e better understanding of the invention, however, and the advantages by which it characterized, reference maybe had to the accompanying drawings and clescriptive matter in which l have illustrated S0 and doscribedone of the forms in which the invention may be embodied.

Ct the drawings, Figure 1 is o perspective View of s cross tie in which angle bars are used as the side. bars or rails of the tie. Fig. 2 is s. erspective view of the cross tie in which the side bars of thetie are 4msdeof invert d T hors', Fig. 3 is an inverted plan View f .the cross tie Vshown in Fig. l, and Fig. 4 is au inverted pien view of the ,tie shown in Fig. 2. y The cross tie of Tcomprises s nir of metal sidebnrs A in t e form of rolle single bars which are placed with oneilnngo' of each bar vertical andfacing thecorres ond- 1 ing flange of the other 4ber, and wit the horizontal 'flange of each loeri'exte'ndiiwl away from the side of the tie. The hais areconnected together by the cross pieces` B,

. each riveted or otherwise secured at oney end to the horizontal flange 'of the correspondinel side bar A.- Betweenxthe bers A are locate adjacent each end a block C offwoodwhich rojects well above the upper edgesof the Ears A and to which-jtl' track rails F are secured by the "usugil' 'spikes F Combination Wood i lwhich aremll alike and are While e ve 'short blocks C .d-Yen time the wood blocks C. The `biot-its C Which are of a width substantially'equol to thedisftance bet-Ween the verticallanges of ytheftvio! bars A, are secured in' place b, driven through the previously ornlifanrl suitabl7 shaped apertures D and the vertice lunges of the side bars. By ,r ence, the apertures D undmD are arrzing Y in a pair ofy horizontal rows one abovethe other with the openings in one row gered with respect to the openings inthe other row'. By preference also, as shoin7 the opening of the set of openings D closest the corresponding en d of the `bar A is in the upper row of openings, while the open in in the set of openingsD' closest the ot er end ofthe ber .is inthe lowerrow of openings.V In consequence, when as in prac-- tice the ross ties are made up of bars A lengths from ,stock bars of indefinite length, the openingsD of one bar Will come et the same end of the tive as the openingsD of the other bur, and the 'openings D and D. same end of the with respect to 'each other.- so that there is no possibility of the spikes E driven into ting and unchinv the corresponding blocks C through the openings 1n' one of the barsA coming' into lContact withv the spikes driven into the blocli throu h the o enings into the other bar A regar less of t e length of the spikes used.

n order to obtain the best results Ihove 4 found it essentiel that each block C should have o cross section substantially e uel rto the cross section of the'ordinarylwo dcross 4tie and should he of s. len th not lees1 g ,e quarter ofthe length o theusunjo tie, and may well be lerger. `.uh .c iliinenl sions srefnecessnry in ,orderl metal tie may e obtained byeniployiniwitl themetal structure of Figpl* n. 'woo' of the usunl`1ength,-the use of the r litiryJ 'ly'` as shown islas satisfs'totjf most respectsvand moresou someg'eritl very muchcheaper as it mekes availalgle .for ti'e purposes many short lengthszofl'wqod, which have heretofore been'neirt tojSelss' for any practical purpose. For4 instencet in the two bereut the cross tie will be staggered good combination ilO permits the use of the sound middle portions of the ordinary wooden yties which have been used until the ortions of the ties beneath the track have eteriorated to such an extent that the ti are no longer safe for use in the ordinary way.- l

The exact shape ofthe wooden blocks is not essential, that is, either sawed or hewn blocks may be used. 'While the blocks should be of a width substantially equal to the clistance between the side bars, they do not re.

quire to be accurately fitted since each block is of suilicient bulk and strength to resist crushinv' under the pressure of the track rails independent of any support from the side bars. The metal structures of the cross One of the advantages paossessed by my tie is found in the increased caring surface on the ballast obtained by the horizontal-ilanges of the metal side bars, enabling each to sustain a much eater wei ht than heretofore. A further ag found in the fact at the reduced bearing surface between the ends of the tie relative to the bearing surface at the ends of the tie resultin from the space between theadjacent en of the blocks C diminishes the liebility'of the ends of the tie rockino' up and down-about the middle ortion of the tie as a fulcrum. The ballast etween the blocks C also forms an anchor holding the tie in place, and .in particular, preventin the tie from movement in the direction of 'its length. The ties are also held against movement in any direction when in service by the great weight of the ballast bearing on thel horizontal flanges of the. metal bars. A further advan- :tage of the invention is :found 1n the fact that a block C may be adjusted in the direction of its len h, turned end forfend or upside down, or. e replaced y a new block on the removal of enough .of t e ballast between the, tie and the adjacent ties to permit the spilres'E to be drawn and redriven and without disturbing the -bulk of the ballast by which the ticas a whole is held in its place. This greatly facilitates repairs, both by reducing the labor. necessary to 'make repairs and by the minimum disturbance of the road bed made necessary to accomplish the repairs. It is, of course, obvious that withthe staggered arrangement of spike openings E anta e o the construction is' bottom, is open at the top.

that after each adjustment of any block C it may be. effectively secured in place again. since more holesl l) and D are provided than are ordinarily in use at any one time the s ikes may Vbe driven through c liilerent holes *l with dlt'erent adjustments of the block. thus avoiding too close proximity tiet-.weon new andold spike holes in the block.

The cross tie shown in Figs. 2 'and 'l dilfers from that of Figs. l and 3 in that the side'bars'A are made of inverted T bars instead ,of angle bars, so that tho blocks C rest upon the horizontal flange ot' nach bar which extends toward thc other bnr. This construction is mechanically scincwhnt more advantageous than. the construction first described but is more expensive to :nauw facture on account of the greater weight of metal necessary. In this form as well as that of Figs. 1 and 3 a large proportion of the under surface of each wooden block C is exposed and bears'directly on the ballast. In the construction shown' in Figs. 2 and 4the spike openings D and D formed in the side bars A" are vertically elongated so that the blocks are free to yield to some extent when trains pass over them without any tendency to shear the s ikes E or to loosen these .spikes in the locks. elongated'openings may -also be provided in the' side bars of Figs. 1 and 3. I prefer,`

however, to have the spike openings D lformed as shown in Fig. 1.

In the construction shown, it will be observed the block receiving channel, or space between the radial flange or portions of the metal side-bars, which 1s of substantial extent and substantially uniform from top to This not only ta.- cilitates removal and insertion of the wooden blocks, but permits the use of blocks which may vary somewhat in thickness, measured in the vertical direction, since 'the blocks do not require to be adjusted or fitted between top and bottom parte of'the tie, thouch of coursexthe blocks should be oi' 'sani-'cient thiclni'ess so that the track rails are snpported by the blocks and not by the metal sidebars.

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

1. A railway cross'ti'eicomprising a pair of metal side bars'spaced apart forming between them a block receiving channel open at the top and provided with horizontal flanges projecting from opposite sides of the tie, metallic cross pieces connecting the side bars-at their lower edees and one or more rail su porting wood bslocks located in' said channe and spiked to said bars, each block havinga portion of its under surface exposed, andbein of suiicient cross-sectional area. and lengt to resist splitting by the spikes driven in it and to resist crushing 4These under the pressure exerted on it by the rail or rails engaging it independently of the support alforded to it by said side bars. 2. A railway cross tie comprising a pair of metal side bars spaced apart provided with horizontal flanges projecting from opposite sides ot' the tie and provided each with spike. holes adjacent eaeh end, the spike holes in one bar being ont o-f line with the spike holes in the other, metallic cross pieces connecting the side-bars at their lower edges and one or more rail supporting Wood blocks located between and spiked to said side bars by spikes passing through .said holes, each block having a portion of its nnder surface exposed and being of snllit'rient Cross-sectional area and length to resist splitting by the spikes driven in it and to resist crushing under the pressure exerted on it by the rail or rails eng-aging it independently of the .support afforded to it by said side bars.

3. A combination wood and metal cross tie, comprising a pair of side bars formed of inverted metal T rails having their adjacent flange edges .spaced apart and having spike holes in their vertical flanges. nietal cross pieces connecting the side barsl at their lower edges, and a pair of rail supporting wood blocks, one at each end of the tie betiveen and spiked to said side bars through said holes, each block having a considerable proportion 'of its under surface exposed and being of sufficient length andl cross-sectional area to resiliently support the rail bearing;r on it and to resist splitting by the spikes driven in it or crushing by the rail independent of the .support to the block formed by the side bars.

LEWIS P. BUCK.

litnesses ARNOLD KA'rz, D. STEWART.

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