US894986A - Tie-plate. - Google Patents

Description

soted ties or with ties given a similar super- T o all whom. it vitry concern.: Be it known that I, Mounts SELLERS, a citizen of the United States', residing at (Thicago, in the count v of Cook and State of Illinois, have invented certain new and useful Improvements in Tie-Plates, of which the following'is a specification.

)Iy invention relatesi to railroad-rail tieplates and has for its object to provide a tie'l z plate which shall have projecting ribs on its under surface so arrangedgand-constructed l as togive the plate an effective grip or an# c horage on the tie withl a minimum .of injurions disturbance of the fibersof the wood at the surface of the tie and, at the same time,

to prevent the rotting of tlie portion of the i p ate, b v the exclusion tie covered by the therefrom of water.

T he invention, in one of its preferred em f bodiiiients, is illustrated in the accompany- 5 ino' drawings, in which' igure 1 is a perspective view of a tie plate i of niv invention in position on the tie with A the rail seated thereon.

ed plain view of the tie late; and Fig. 3 is a.

section on line 3-3 of ig. 2, looking in the direction of the arrows, showing'also portions ofthe rail and tie.'

Like characters of referenceindicate like .parts in the several figures of the drawings.

4 represents a tie, 5 an ordinarj T-rail, and 6 a tie plate provided with the upstanding rib T, against which the rail flange abuts, and perforated at S, S, S, for the usual '5 s ikes 9. Aiivother means may he ein# p oved for holding the rail flange, tie plate It has been usual to rovide` the under side ol"` tie plates of this c aracter with shar cutting edges or ribbed cut into the bodyV of thev and tie together.

projections wliic tie and form an anchorage for the plate. 'Devices of such character obviously cut and disturb the fibers of the tie and thereby increase the susceptibility 'of the tie to rot. i

This is particularly objectionable with creocial treatment. The spike cuts through the treated portion of the wood at' the surface and g lets water through into the untreated part.

parts not so covei'ed.` T is is because the water, which may run freely oft and evaporate from the uncovered part of the tie, collects and stands under the tie plate, causing STATES PATENT oFFiCE.

j iioiiiis SELLERS, ociiicact, iLLixois.

Specification of Letters Patent.

F ig. 2 is an invert- 'Trzmirri.l fi

l the tie eventually to rot in these places. In order to obviate'these several disadvantages, i I provide the under surface of the tie plate with ribs which are more r less shallow and i blunt, so that-thejv crush and grip the fiber of j the wood rather than cut into the saine. In order to get av roper grip on the tie, a number of these ri s are pro ided. Preferably, the ribs, at the center o the late at least Vseating lines, indicated by the lnumeral 10 in I-the drawings., The'whole under surface of the plate may be provided with diagonal ribs of this sort, if desired. This construction, it i wilhbe-seen, divides the surface of the plate into\ a number of inclosed s aces 11 separated Patented. Aug. 4, 1908. appiicaaonaiea February i. isos.: serial iiaaiaais.l

Y -i ext'end diagonally across the p ate in interfroni`\each other by the ri s. By nicans of this arrangement of the ribs, water will not penetr te for any considerable distance iinder the vplat-e and the plate will Grip the fiber g of the 'wood in all direction-s. I also to construct the plate witha rib 12, w iicli 'I term aA box rib, and which' runs entirely around the under face of the late near the edge. This iib aids in giving tlie plate a grip refer' upon the tie and also serves to exclude inoislower than the ribs at the center part' of the ture. Preferably this rib is made somewhat plate, so that the greater pressure at the center will not cause the breaking of the plate.

This arrangement of diagonal, intersecting ribs and a box rib gives the plate a firm grip on the tie, without cuttiii or penetrating the tie, and effectively exclut es water.

In practice it has been found that where plates, even though the water does not penetrate deeply in the' tie, a softening of the fiber i and disiiite ration of the ,tie rapidly ensues.

l Consequent y while the box rib may assist by,

' but, as is well known, when moisture enteis between the tie and the rail, the electrical i eonductivityof the tie is greatly vincreased Parallel Vribs 13, 13 may also he provided.

moisture enters between the tie and the tielos block signal systems. For such purposes the rail will be sufficiently insulated f ioin the earth by the wooden ties when the tie is dry, Y

i'io

and the aggregate loss of current or voltage i but with the rail and spikes in lace, such resulting therefrom is very noticeable and exceedingly objectionable; l

Y'Yhere my improved tie plate is used, substantially all of that portion of the tie surface which contacts with the tie plate, which in turn makes Contact with the. rail, is kept dry at all timesand that portion of the tie sur- 'face which contacts iyith the tie plate, but is not so protected, is so limited in area. that it. v 'will readilydry out. The result is that for times restsupon ry wood, which sufficiently ins'ulates the rail to prevent ob'ectionable .loss of voltage in `the signal currenis sent over the rail.

- The arrangement of diagonal ribs shown in the drawings is effective in excluding moisture from thatl part of the tie surface covered by that portion of the plate provided with diagonal ribs. In the preferred form, the plurality of intersecting'ribs, whether of di;

agonal arrangement or otherwise, under th at V portion of the tie plate which directly carries the'rail base, serves to give the tie plate the required grip upon the tie surface, while the marginal or box rib effectively excludes moisture.

. y Obviously with an article used in such vastz numbers as tie plates;Q its utility largely depends upon its being-of such a character that 1t may be ra idly and cheaply made from the most. suitable materials. 'My improved tie plate has notlonly the service advent-a es described, arising from the character of t ie ribs upon its under face, but those ribs are of such a character and are susceptible of such an arg i all theway around such surface andnear the rangement as to permit'of producing these tie plates not only by rolling, but by a very simple rolling process eliminating most of the successive steps 1which are necessary in rolling tieplates with projecting s ikes oi' ribs which are driven into the tie. onsequently :by my invention I am enabled to produce a tie piate of Wrought iron or steel having a maximum of utility and at a mimimum of cost. These plates are preferably rolled in an ordinary rolling null from wrought iron,

all practical puposes the tiel plate at all which is the material best adapted for use in i-such an article and to resist erosion and corrosion.

While I have referred to the ribs on my tie plate as being non-cutting, it should be understood that, while such ribs may superto a trifling extent cut it, the term noncutting is used toL distinguish these ribs from ribs which so penetrate the tie, in a manner similari() the penetration by a spike, as to constitute attaching members. The ribs on my tie plate do not constitute attachiizgmembers and, `when the spikes are remarried, the plates may be lifted from the tie,

Yf'iciall-y crush or break the fiber and possibly l i i ribs grip the tie so as to prevent ateral displacement ofthe tie. plate. The

embed themselves in the surface of the tie y crushingint'o. the fiber sufficiently for this urpose. .wish it to be understood that lido not d esire to limit myself to the exact constructions and arrangements shown in thedrawuws., as seine modifications might be made without departure from my invention,

I claim:

1. A railway tie plate, the under surface such box rib, substantially as and for the purpose described.

3. A railway Atie plate, the under surface of anda plurality of intersecting r1 within 1 which is lrovided with a box` rib extendin i all aroun such surface near the edge thereo and aipluralitv of .intersecting ribs in the center of the plate within such box rib, the vertical dimension of the box rib bein less than that of the central ribs, substantia ly as` and for the purpose described.

. 4. A railway tie plate, thevunder Surface of! which is rovided with a plurality of ribs dividing a l of such surface int() a plurality of completely inclosed spaces, substantially as' and for the'pu ose described.

.5. Arailway Aie plate, the under surfacecf which is provided Wit-h a box-rib extending edge thereof, and a plurality 'of intersecting ribs running diagonally across such surface and dividir: the same into a series of inclosed s aces, suostantially as and for tlie purpose escrib'ed.

6. A railway tie plate, providedt'onitsA under side with a p urality of noncutting ribs adapted to be embedded in the surface of the tie and arranged to substantiall ei.:- clude moisture from entering betweelit e tie and the tie late.

7. A tie pllate, provided on its under surface with a plurality of non-cutting ribs adapted to be embedded in the tie directly under the rail, so as to prevent lateral displacement of the tie plate,-said tie plate being" provided on its under surface with other non-cutting, marginal ribs extending all around such surface, whereby moisture is substantially excluded from admission Vbci tween t-he tie plate -and the tie. y MORRIS SELLERS.Y-

Witnesses:

JOHN M. SELLERS, G. Y. Smm-Em

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