US1580537A - Reenforced railroad crosstie - Google Patents

Description

April 13 1926. 1,580,537

y M. RPING REENFORCED RAILROAD CROSSTIE Filed Dec. 8. 1925 Patented Apr. 13, 1926.

UNITED sTAT S APATENT OFFICE MAX Rrme, or MUNICH, GERMANY, AssIGNonfT'o DBELWERKE G. u. B. 11,01?

r I BERLIN, GERMANY. r i

ymmm?ozacan RAILROADV cnoss'rni.

Application led December To all whom. z'z may concern: y

Be it known that I, MAX RriNG, a citizen of the Republic of Germany, residing at172 Ismanningerstrasse, Munich, Germany, have invented certain new and useful Improvements kin Reenforced RailroadfCrossties, of which the following is a specification.

This invention has reference to means of increasing the duration of railroad cross-ties by providing the wooden cross-ties at the points where the rails are supported with a lining plate of hard wood arranged with its fibers to run in the direction of the fibers of the cross-ties or sleepers. It has been usual to employ such lining plates or blocks as a means of rendering cross-ties available `for use. which have become unfit for use by the widening of the spike holes, the surface `of the cross-tie being indented to a certain depth and `for a certain length, andthe indentation being thenfilled with one or more lining Aplates .orblocks.

However, the lining lmeans of the kind referred to and suggested by the -previous art have. not been very satisfactory and did not fully come up to the requirements of railroad opera-tion. 'The wooden lining lates heretofore" used were either arranged with their libres transversely with relation to the tie, in which case the plates, though protected from splitting, were loosened in the indentation as a result of changes of temperature, so that they required tightening; or, on the other hand lining plates or blocks were used with their fibers in theolongitudinal direction of the tie. With this arrangement there was the diiculty, however, that the plates were torn and broke open by the action of the weather and of the pressure of the rails. It has also been suggested to make the indentation in the cross-tie of circular shape, in order to avoid tearing of the lining plate. Though with' this arrangement the initial tearing and breaking open of the lining plate could be avoided, the pointed angular pieces on the surface of the. tie at the side of the indentation were forced away and broken off, and after the removal of these angles the lining plate itself had, of course, to give away and burst. These dificulties and inconveniences are overcome in this invention by providing strips of sheet metal with lateral ears, such strips being forced into the transverse joints between the edges of the indent-ations of the ties and the 8,' 1925. isenin No. 14,093.

edges of the lining plates or blocks disposed in the indentations with their fibers in the longitudinal. direction ofthe ties. The ears Yof these strips are thereby forced both into the tie as well as into the liningplate with `the result that the lining plate is'l thereby Y secured 1n a simple and unobjectionable mannerjbothv against bursting `and tearing, aswell as Vagainst displacement. j f

The inventlon will be more particularly Vdescribed with reference to the., accompanying drawingA showing by way of e'Xemplific-altion a preferred form of embodiment of the principles of the invention, .Figure 1 vbeiing a longitudinal section through the portion of the tie provided withY the lining plate. Figure 2 is a top plan View according to Figure 1,-and F igure 3 is a plan view ofthe l.metal strip employed for retainingthe lining plate in position and for securing the same against bursting and tearing. l Figure lis a side view of the metal strip. Figure shows the original shape of the metal strip before the bending of the ears. In the cross-tie a the depression or indentation` b is out out in such -a manner that its fibers are running in the same direction with those ofthe crosstie'. The lining plate c itself is provided with an indentation l in which the yfoot of the rail isfdisposed. In order to prevent bursting and tearing of this lining plate c y which the lining plate or block c is lodged in plate, each joint being'provided with a metal strip. These sheet iron strips are shown particularly in Figures 3 to 5 of the drawing. The manufacture of these fastening and securing strips is substantially effected as follows:

In the sheet metal strip f the cross cuts g and the longitudinal cuts h are provided, as appears from Figure 5 of the drawing. The sectional portions 1, z', thereby obtained are bent alternatingly towards the front and rear sides of the strip; and the ends of the stripf are likewise bent respectively for- Ward and rearward, and by this means the strip f is given the shape shown in Figures 3 and 4 of the drawing.

The block or lining plate o, shown in Figures 1 and 2 is provided at its end faces, and

particularly at the vedges thereof, with incisions or notches at right angle to the end faces and to the upper surface thereof andspaced from each other to correspond to the ears 0f the strips f. Then said strlps f are forced by hammer blows or the like into the transverse joints between the tie and the lining plate c and in such a manner that the ears 1,2 are made to engage respectively with the tie and the block or lining plate the ears 2 engaging with the incisions or saw-cuts in the lining plate, and the ears z', engaging with the transverse surface of the cross-tie itselfI adjacent the sheet metal strip The length of the strips j' corresponds to the breadth of the cross-tie, so that the bent ends of the strips are caused to bear upon the longitudinal faces of the tie and of the lining plate respectively.

By means of the ears the lining plate becomes subdivided into comparatively small subdivisions or sections, so that upon the drying-up and contracting of the lining plate c this contraction cannot result in the formation of broad or transverse fissures, aut will at most result in the formation of small innocuous capillary fissures. There is yno further contraction of a lining plate mounted according to this invention in the longitudinal direction of the tie, so that the said block or lining plate c will always snugly and completely lill the indentation, while at the same time displacen'ient in the transverse direction is reliably prevented by the sheet metal strips f, as hereinbefore set forth.

While the invention has been described and shown -with reference to a preferred eX- emplification thereof it is to be understood that it is not limited to this particular construction and arrangement of parts, but that it is susceptible of modifications and changes within the scope and spirit of the invention, as definedthe appended 'claims'.

I claim l. A reenforced railroad cross-tie, including in combination with a topwise recess and a liningl plate in the recess of said tie with its fibers running substantially in the same direction as the fibers of the tie, and sheet metal strips disposedbetween the adjacent faces of the tie and of the lining plate, of lateral projections on said strips cngageable with the tie and the lining plate. 2. ln a reenforced railroad cross-tie having in combination, a topwise recess, a wooden lining plate in the recess of said tie with its fibers running substantially in the direction of the fibers of the tie, sheet metal strips between the adjoining faces of the tie and of the lining plate, and spacedly and angularly disposed lateral ears on said strips engageable with the tie and with the lining plate and with the outer surface thereof.

ln a reenforced railroad cross-tie having in combination, a topwise recess, a wooden lining block lodged in the recess of said tie with its fibers running substantially in the direction of the fibers of the tie, sheetl metal strips transversely disposed between the adjoining faces of the tie and of the lining block, alternatingly oppositely directed, spacedly disposed lateral ears on said strips respectively engageable with the tie and with the lining block, and oppositely dir ctcd ears at the ends of said strips respectively engaging the outer surfaces of the tie and of the lining block.

In testimony whereof l affix my signature.V

MAX RPING.

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