US853684A - Tie-plate. - Google Patents

Description

' No.853,684. PATENTED MAY14,190'7.

w. L. DE REMBR.

TIE PLATE. APPLICATION FILED AUG.2 6,1906.

a w M/ 1'0 all ro'hinl may concern."

UNITED s'r 'rns PATENT OFFICE;

WILLIAM Linn REMER, or OIIIQAGQJILLINOIS,

' TIE-PLATE.

Specification of Letters Patent. v

' Batented May 14, 1907.

Application filed Au ustus, 190a s en No. 882,064.

-Be it known that I, WILLIAM L. De RE- MER, a citizen of the United States, residing in Chicago, in the county 'ofCook and State of Illinois, haveiinvented certain new and useful Improvements in Tie-Plates, of which the following is'a s ecification.

This invention re ates to that clas'sof -tieplates having a ribbed upper surface portion and provide embedded in and extend transversely of a tie,

so as to resist the side thrusts ofthe railto which the plate is subjected in use.

In theart to Whi h this inventionrelates,

- tie-plates are known which have corrugated upper surface portions and shar bottom flanges which extend longitudina y of the ties or transversely with elation to the upper rail-engaging shoulderw Such longitue dinal dependingflanges addweight to. the

. plate. which it is very desirable to dispense with to as great an extent as possible without unduly diminishing the strength of the plate. In other words it is very desirable to proportion and distribute the weight of the different parts of the plate to correspond as nearly as possible with the degree of stress and strains to which the respective parts are subjected in use, so as to provide a plate having the minimum weight and maximum effectual strength.

"strengt The principal object of this invention there'- fore, is to provide a simple, economical and eflicient tie-plate.

Further objects are to provide a tie-plate formed of rolled steel and so constructed that. the portions which are subjected to the vgreatest'strains are efficiently reinforced and proportionately heavy and-strong, and the portions whichare subjected to ess strain I are proportionately light,'a ll parts having-aproportionate to the parts are subjected,-

substantialllyl strain to which suc whereby a plate of minimum weight and maximum'efl'e'ctual strengthis formed.

A further object is to provide a plate having a substantiallyfiat bottom face and a depending reinforcing rib so disposed as, to re- .sist the side thrusts on the outside of the rail I and retain the plate in position uponthe tie, reinforcing the outer rail-engaging shoulder i and the ,o'uter'spike holes, such rib being adapted to be embedded in, andf-to exten transversely. with relation to the tie in such a with a transverse reinforcing retaining rib on its under side adapted to be- .steel and having an integral rail-engaging manner that the fibers thereof remain unbrokenas far-as possible; Other and further" objects of the invention will appear from "an examination 'of the drawings and the following description and claims. I

The invention consists in the features, combinations and details of construction .hereinafter described and claimed. a

In the accompanying drawings Figure l is cordance with my improvements; Fig. 2, a

view in elevation showing the bottom portion of a rail in position thereon, and Fig. 3, a

sectional view in elevation takenon irregular line 3 of Fig. 1-, looking in the'direction of the arrow and showing the, relative positions of the upper rail-engaging shoulder and the depending retaining an outer-spike holes.

..In constructmga tie-plate'in accordance with my improvements adapted to accom reinforcing riband .plish the above objects,'I provide a. main ody portion a formed preferably of rolled shoulde'rb uppn its upper face adapted to extend along t e outer sideof, and'in engage-v ment with a rail 0 which may be of any ordinary and well known form. Inner spike and-an inte ral reinforcing and rerib and the rail-engaging shoulder thus-both 95 reinforce the outer spike holes and rovide the-greatest thickness of material an therefore the greatest strength at the points where the outer side of the rail rests, and where the side thrusts and the greatest strains are re- 1: o

ceived.

'lhebottom of the plate is preferf ably flat with the reinforcing; retainlng rib the flat npper'fa'c'e ofthetie so t at it may have the greatest possible load-carrying capacityin pro ortion tofitsweight. The n perfao'e'of t e plate is provided with railsustaining ribs -g" which, extend obliquely no rejecting downward therefrom as described. This enables the plate tofit snugly against 105 5 a plan viewof a tieplate constructed in ac-- at an angle with relation to those at the 0p posite side so as to converge preferably toward the longitudinal center of the plate, orin other words so that their outer ends di.

verge.

The depending retaining rib-is preferably of greater width than depth, and its bottonr face extends from a point inside the outer spike holes to'a point outside of the outer lower edge of the rail and also outside of the outer spike holes and the rail-engaging shoulder portion of the plate. The broad'bottom face of the retaining rib, therefore, forms a loadsupporting face and not a mere cutting edge, and is adapted to be embedded in the upper side of a tie without materially breakor injuring the fibers of the wood. :The plate thus retains substantially the advantages of a-flat bottom plate, and yet the bottom retaining rib is adapted to reinforce the iupper rail-retaining shoulder and to resist -the shoulder thrusts on the outside of the rail. It thus increases and strengthens the adhesion of the platetothe tie without material injury to the fibers. The bottom rib also forms on all sides of the outer spike holes, reinforcing wall portions which are adapted to engage all sides of the spikes below the upper surface of the tie when the plate is in posit: -n thereon. Rigidity and added to both spikes and plate and the rigidit-y of connection between the plate and tie is increased. This form of depending retaining rib in combination with the oblique ribs and rail-engaging shoulder on the upper side of the plate enables the weight of the plate to be reduced to a minimum while retaining the maximum effectual strength and enables longitudinal dependingflanges to be dispensed with without detriment to the plate and with benefit to the tie. The plate is rolled preferably longitudinally.

I claim:

1 A tielate provided with inner and outer spikeioles and a ribbed upper face portion, and having a retainin rib on its under side forming'l'ower reinforcing wall ort'ions below the plane of the main bottom flice portion of the plate on all sides of the outer spike-holes.

2. A tie-plate provided with ribs on its upper side extending atan angle to each other and obliquely with relation to the longitudinal center of the plate, and having a reinforced retaining rib on the under side of such plate adapted to extend transversely of a tie when the plate is in .position.

WILLIAM L. DE 'REMER.

strength are thus

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