US1348344A - Rail-tie - Google Patents

Description

G. H. BA'RBOUH.

mmm.

APPLICATION FILED APR 4,1916

1,348,344. i' Patented Aug. 3, 1920.

joint thereon in cross-section.,

GEORGEH. BABBOUR, 0F PITTSBURGH, PENNSYLVANIA,

, BAIL-TIE.

' I r i Application led April 4,

To all whom it may concern.'

Beit known that I, GEORGE H. BARBOUR,

a citizen ofthe United States residing at Pittsburgh, in the county of Allegheny and vState offennsylvania, have invented a new and useful Improvement in Rail-Ties, of which the following is a full, clear, and exact description, reference being had to the accompanying drawings, forming part of this specification, in which:

Figure 1 is a viewfshowing one of my improved tiesin elevation and a track rail and y Fig. 2 is a side elevation.

TheV precise nature of my invention will be Abest understood by reference to the accompanying drawings which will now be described, it being premised, however, that various changes may be made in the shapes of the members or sections, without departing from the spirit and scope of my invention, as defined in the appended claims. j

In the drawing I have illustrated one form of tie embodying my invention, and which will now be described, it being premised, however, that the invention is susceptible of other embodiments.

In this drawing, the tie is shown as con# sisting of a central web portion 9 which is bent upwardly at each edge to form longitudinal ridges having the reversely sloping. surfaces 10, and which terminate in the horizontal edge portions 12. At the apex of each of the ribs 10 is an up-standing fiange 11 whose upper portion is brent horizontally to form the'rail-bearing member 12a. The portions 12 and 12a are preferably thicker than the other portions of the tie.

The portions 11 of the upper flanges ex' tend at right angles to the portions 12 there- Y of, while the similar portions 11 of the lower Y flanges extend at an acute angle to the portions 12 of their respective flanges, so as to form braces for the lower portions of the ties. Owing to their double seats and fastenings for the rails, together with the vincreased bearing on the ballast, fewer of these ties are necessary for a given length of track than of the present types of ties.

By reason ofthe relatively large ballastbearing area of my improved tie, it is possible to reduce very considerably the depth of the ballast employed, as compared with v the standard depth now generally in use and which is determined by well known rules, depending mainly upon the width between Specification of Letters Patent.

PatentedAug. 3, 1920. 191e. seriai No. 88,817. Y y

the ballast-bearing faces of the ties. This not only reduces the amount of ballast material required, butv the effect of reducing the ballast depth is also to lessen very materially the subsidence under the action of wheel loads on the rails. It has beenV determined that the amount of subsidence, which is the main cause of temporary depressions or vweaving laction of the rails under loads,

varies directly as the depth of the ballast, other conditions being equal. That is to say, thegreater the ballast depth, the greater the subsidence. While the cushioning action of the compressible ballast and subgrade is highly advantageous despite the resulting deflections of the rails, excessive subsidence is dangerous and its reduction is of great importance. Owing to the relatively shallow vertical section of my improved ties, it is possible to obtain a much closer spacing between the longitudinal edges of the base flanges of adjacent ties without impairing the tamping an le. In fact, with my improved tie and with any given spacing between adjacent edges of the ties, the effective tampin angle is greatly increased and it is there y possible to get the tamping implement farther under the ties. I have also shown a preferred way of supporting a rail joint and rails on my improved tie. 14 designates track-rails; 15 are fish-plates secured to opposite sides of the rails, 16 are hollow rivets which secure the parts together, and 17 designates insulaf tion such as may be employed in forming an insulated joint. The rails may be secured tothe ties by means of clips 13 riveted to the flanges 11 and engaging the rail base.

I claim:

1. A metallic rail-tie, comprising a base 4portion having upwardly bent portions which carry spaced apart up-standing flanges, whose upper portions are bent into substantially horizontal position to form rail-bearing members, said base portion having members which extend later-ally beyond Y said flanges to provide increased ballastbearing surface, substantially as described.

bearing surface, said last-named members being of thickened metal, substantially as described.

3. A metallic rail-tie, comprising a base v Y bearing surface, said rail-bearing members being of thickened. metal, substantially as described.

; 4. A metallic. rail-tie, comprising a base portion formed with spaced apart up-stand#V ing flanges, Whose upper portions are bent. into substantially horizontal position to form rail-bearing members, said base portion having members which extend laterally beyond said flanges to provide increased ballast-bearing surface, said 'base 'havingA upwardly bent portions which carry said up-` standingflanges, substantially as described.

5.' A metallic rail-tie, comprising a'base portion having upwardly bent portions which carry spaced-apart upstanding 'Hanges Whose upper portions are bent intosubstantially horizontal position to form` rail-bearing members, said base portionV having members which extend. laterally beyond said flanges to provide'increased ballast-bearing surface,` at least one.V of said horizontally bent portions beingv thickened,. substantially as described. t' In testimony Awhereof Iliavehereunto'set my hand. z A

GEORGE H. BARBOUB.V .Y Witnesses: z l

GEO. B. BLEMING, v JESSE B. HELLER.

Images