USRE12091E - Frederick w - Google Patents

Description

REISSUED MAR. s, 1903.

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lllllll F. W. DUNNELL. RAILROAD CROSS TIE. APPLICATION FILED JAN. 24, 1903.

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UNITED, STATES PATENT OFFICE.

. FREDERICK Vi". DUNNICLII, Oh SPRINGFIELD, MASSAGHI SE'VIS, ASSIGNUH 'l() V THE F. \V. DUNNELL COMPOSITE LEATHER COMPANY, OF SPRING FIl-lllll, MASSACHUSETTS, A CORPORATION OF MAINE.

RAILROAD CROSS-TIE.

SPECIFICATION forming part of Reissued LettersPatent No. 12,091, dated March 3, 1903. Original No- 683,734, dated October 1,1901. Application for reissue filed January 24,1903. Serial No. 140,440

To all uihrmt it may concern):

Be it known that I, FREDERICK W. DUN- NELL, a citizen of the United States, and a resident of Springfield, Hampden county,

Massachusetts, have invented certain new and useful Improvements in Railroad Cross- Ties, of which the following is a specification. One object of this invention is to utilize a waste material, such as leather scraps and [O worn-out foot gear, in the manufacture of railroad cross-ties, a further object being to provide a cross-tie of leather and metal plates suitably constructed which is simple, practical, and efiicient in service.

:5 The invention consists in the novel construction and combination of parts, as is hereinafter described, and defined in the claims. I

Reference is to be had to the accompanying 2o drawings, forming a part of this specification,

in which similar characters ofreference indicate corresponding parts in all the figures. Figure .1 is a plan view of the improved crosstie and portions of two track-rails mounted thereon. Fig. 2 is a side view of the same. Fig. 3 is an enlarged longitudinal sectional view substantially on the line 3 3 in Fig. 1, and Fig. 4 is a transverse sectional view substantially on the line 4 4 in Fig. 1. In carrying into effect the features of invention a suitable number of similar blocks 5 are provided, theseconsisting of pulped and subsequently consolidated leather. As shown, said blocks each consist of a rectangular slab of proper thickness and area.

In order to utilize waste leather and wornout boots and shoes in the manufacture of the blocks 5, such materialis. ground into pulp with a suitable liquid to form a plastic mass.

This material is then formed into sheets that represent the thickness of the blocks, which are subsequently cut from the sheets into rectangular form, and then they are assembled to form a cross-tie, as follows:

The series of blocks 5 have each a centra perforation formed therein, and a bolt 6 is passed therethrough, said bolt having a head a on one end and a nut b on the threaded opposite end of the same. The bolt 6 is of a length which conforms with the lengthof the cross-tie to he formed, and 'exterior of the blocks 5 at each end of the tie a washer-plate 7 is located on the bolt.

The assembled blocks 5'are'arranged so that their edges will be disposed in four planes that represent respective sides of the crosstie when it is completed, and the series of tieblocks are now compressed against each other in sequence by a proper adjustment of the nut 1), thereby producing a leather tie-body.

Upon opposite faces of. the tie-body, which respectively represent upper and lower sides thereof, two similar metallic plates 8 9 are secured by bolts 0, 8 being the cap-plate of the cross-tie, and f) the baseplate thereof. The cap-plate 8 and base-plate 9 have each a plurality of flanges S and 9, respectively, formed thereon along their side edges at spaced intervals, and it is to be understood that anypreferred number of said flanges may be employed. The width between opposite flanges on the cap-plate 8 and likewise on the base-plate 9 is such as will adapt these paired flanges to closely bear upon the side walls of the cross-tie body, and thus prevent the material of the body from yieldinglaterally.

Upon the cap-plate 8, at a proper distance from each end thereof, provision is made to retain track-rails AA in place on a plurality of the cross-ties of a railroad. To this end 8c properly-positioned orifices d are formed in the cap-plate 8 for reception of the ordinary railroad-spikes e, which may be driven into the body of the tie at each side of each trackrail and bear with their hooked heads upon the base-flange of each track-rail in the usual manner. To reinforce the binding action of the spikes 6, two clamping-plates 10 are provided for each end portion of the cross-tie, said plates having one end portion of each one bent to adapt it to bear upon the head of an adjacent spike e, the remaining part of each clamping-plate, which is seated upon the cap plate 8, being bolted thereon by screw-bolts 5 that pass through registering perforations in the clamps and cap plate, as indicated in Figs. 2 and 3.

i The advantages inherent in a tie of this class are its moderate cost, due to its manufacture from ref use leather, its durability and imperviousness to moisture, and its elasticity under the strain of actual service. Moreover, it will be found to receive and hold-the fastening-spikes with the utmost tenacity, while reducing-the transmission of jar or vibration to a minimum, these being very important considerations in an article of this kind; I

Having thus described my invention, I

' claimas new and desire to secure by Letters gular leather blocks flat on the sides, said latentv l. A cross-tie, comprising a leather body, and plates of metal adapted. to hold the body consolidated.

2. Across-tie, coin prisinga series of leather blocks held together by abolt tdfOIlll a tiebody, and reinforced laterally by plates of -metal'secured on said'body.

3. A cross-tie, comprising a series of leather blocks held together in sequence 'bya bolt and washer-plates thereon;

4. A cross-tie, com prising a series of rectanand screw-nut, and washer-plates placed on the bolt near its ends-after the leather blocks are located in sequence on the bolt-body, the leather tie-bod y being consolidated by an adjustment of the screw-nut.

5. Ina cross-tie, the combination with a series of rectangular centrally-perforated ticblocks, washer-plates at the ends of the crosstie body, a bolt passing through the tie-blocks and washer-plates, and a screw-nut on an end of the bolt, of a cap-plate having depending flanges on its side edges, and a base-plate haviug like flanges, the flanges on said plates being arranged in alternate order and adapted tobear upon the sides of the tiebod v.

6. -A cross-tie'comprisiug sections consisting of solidified leather combined witlrmeans for holding said sectionsfirmly together.

7. A cross-tie comprising a body of compressed leather and .a' tie rod extending through said body longitudinally thereof..

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