US843713A - Bushing for railway screw-spikes. - Google Patents

Description

PATENTED FEB. 12, 1907.

A. STUGKI. BUSHING FOR RAILWAY SCREW SPIKES.

APPLIOATION FILED FEB. 13, 1906.

A f sm WITNESSES.

- power in the wood, are'likely not to hold the -count of its UNITED 'sTArns PATENT @FFIGE. .ARN OLD STUCKI, OF ALLEGHENY, PENNSYLVANIA.

USHING FOR RAILWAY SCREW-SPIKES.

Specification of Letters Patent. Application filed February 13. 1900. Serial N 7 300.937.

No. 843,713. Patented-Feb. 12, 1807.

T 0 all whom it may concern.-

Be it known that I, ARNOLD STUCKI, a resident of Allegheny, in the county of Allcl gheny and State of Pennsylvania, have iiil vented a new and useful Improvement in Bushings for Railway Screw-Spikes; and I do hereby declare the following to be a. full, clear, an exact description thereof.

This invention relates to a sleeve or bushinserted in railwa cross ties for rel l is a similar view showing a modification. and l Fig. 3 is :i plan view of the sleeve or bushing.

In the drawings the rail is shown at 1 pro vided with the usual base-flanges 2 and resting on a tie-plate 3 ol the usual construction. The tie 4 will have 5, provided at its upper end with a countersink 6, in which opening will be driven the sleeve or bushing 7. Said sleeve is threaded ing to be internally, as at 8, for receiving the screwceiving a screw-spike. T 1c object, gencrspikc 9. I v ally stated, is to provle aslevide of this char- The sleeve 7 is a solid metal sleeve having acter which will prolong the life of the tie, which .is cheap to manufacture, and which will securely hold the rail-fastening moans.

Ordinary railway-spikes when driven inwoodcii ties possess only a small holding a closed bottom 10, which rests upon the bottom of the hole in the 'tie and at its upper end is provided with a flange 11,which tits in the countersink 6 and rests upon the shoulder formed by the countersink. The hole in the tie should be accurately bored, so that the distance between its bottom and the shoulder formed by the countersink will be exactly equal to the distance from the lower eil e of the flange 11 to the bottom 10 of the bus lin track exactly to gage, break the fiber of the Wood, and also permit water to enter the hole formed by the spike. Asa consequence, the tie is rapidly destroyed, both chemically, due

to the action of the water, and mechanically, or sleeve. As a consequence, the sleeve wi due to the pounding of the rail thereon on acbe firmly sup orted on the sol d wood of the count of tie slip of the spike in the wood. he, and the i aiige 1]. forms a good seat for Resort has been inade to tie-plugs and spikethe tic-plate 3, so that the latter cannot wear bushings for the purpose of overcomin the into the wood and destroy the tie mechanicevils of the track being out of gage an the allv. water entering the wood but these only par- The sleeve may be smooth on its exterior, tially prevent the evil. Screw-receivin as shown in Fig. l, or may be provided with bushings or sleeves have also been rcsorte ribs or threads in any suitable way, said ribs to; but, as far as I know, these comprise either being annular, as shown at 12, Fig. 2, either a sleeve formed from a spiral wire or or arranged s irally and of any desired pitch. threaded or unthrcaded wooden bushing. The hole in t 10 tie should be slightly smaller The first-named is too expensive to make and than the sleeve, so that the latter will have a to apply, the second does not possess th tight fit thereiii. It can be driven by means requisite strength, and the third is not held Of' a sledge and in in the wooden tie with sufficient firmness to press the fibers of the wood. but not break the do much good. same. Consequently the iiber has a strong My invention is intended to provide a dc-. frictional grip on the sleeve. and on account vice of the above kind which is citicient, of the comparatively large diameter thereof chea to construct, and which will overcome this will be sutlicient to prevent the sleeve all 0 the disadvantages above named. The from working u and down. invention consists of a metal sleeve threaded The sleeve s iown is simple internally for receiving the screw-spike and construction, is very strong, having at its upper end a hang, said sleeve means of a sledge, and has a strong frictional being adapted to be driven into a countergrip in the wood. It possesses many advansunk hole formed in the tie and to rest on the I tages over the ordinary method of i'astenin and cheap of can be driven by bottom of the hole as well as onthe shoulder railway-rails, .to 'wit: It increases the life 0 formed by the countersink, thus giving a the tie due tothe fact that the fibers of the firm support to the mililate and, on acwood are not broken and do not disintegrate comparativel y large diaiii'eter, no matter how often the rails rnav be taken exerting a strong frictional grip in the wood. up and re-laid, There is practica ly no wear In the acconi )anying drawings, Figure 1 is i on account of relaying rails or readiusting a vertical section through a rail and tie, showing my device applied thereto. Fig. 2

the sleeve takes care of all 0 the wear that driving will slightly cornbored into it an opening .I to the track. The metal screw-stpike working in would otherwise occur. The tie will be firml held in contact with the rail-base instea of having the usual lay due to the s ike not having suflicient rictional hold in the wood. I Its resistance against pulling out of the tie is largely due to its large outer bearing-surface, to the neat fit which it can have in its hole, thus not making it necessary to break the fiber, and to the ribs or threads formed on its outer surface. The sleeve forms-a support for the rail-plate',-so that the latter will not wear away the wood and destnoy the tie mechanically. If the tie is treated wi h a preservative or if not so treatthe sleeve by reason of its neat fit in the wood and the flange at 1ts upper end will prevent the water from getting down into the hole, and thus prevent the rotting of thetie or the leeching out of the preservative, ii. one is used, and will thus prevent destruction of the tie'chemicall-y. By means of this sleeve the'rails eaxtbe more easily laid to exact gage, since the holes-for the sleeve can be bored exactly to gage.

What I claim is- 1. A screw bushing or sleeve for railway cross-ties comprising an internally-threaded solid metal sleeve having an outer surface adapting it to be driven into a hole in the tie andprovided at its upper end with a flange for; supporting therai -plate.

21A screw bushing or sleeve for railway cross-ties comprising an internally-threaded solid; metal sleeve having an outer surface adapting it to be driven into a hole in the tie and having a closed lower end for resting on the bottom of the hole, audits upper end having a flange for supporting the rail-plate. I 3. A railway-track structure comprising a wooden cross-tie provided with a holecountersunk at its top and a metal bushing or sleeve internally threaded and fitting in said hole with its lower end resting on the bottom of the hole, and having a flange fitting in the countersink and resting on the shoulder formed thereby.

4. A railway-track structure comprising a wooden cross-tie provided with a hole countersunk at its top and a metal bushing or sleeve internally threaded and fitting in said hole with its lower end resting on the bottom of the hole, having threads or projections on its outside to increasc'friction against pulling, and having a flange fitting in the countersink and resting on the shoulder formed thereby.

5. A screw bushing or sleeve for railway cross-ties comprising an internally-threaded solid metal sleeve adapted-tdjiltedr'iven into a hole in the tie and provided on its outer surface with projections for increasing friction against vertical movement.

In testimony whereof I, the said ARNOLD STUCKI, have hereunto set my hand.

ARNOLD STUOKL Witnesses Ronnu'r G. TOTTEN, EDNA L. WATKINS.

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