US1483792A - Anchor tie plate - Google Patents

Description

Feb.- 12 1924. 1,483,792

J. M. R. FAIRBAIRN ANCHOR TIE PLATE yFiled Sept. 22. 1922 4 Sheets-Sheet l )i fa l @e N i 4 10 JF" i 14. T:- ,Zr

Feb. 12 1924. 1,483,792

J. M. R. FAIRBAIRN ,ANCHOR TIEPLATE Filed Sept. 22. 1922 4 Sheets-Sheet 2 e O JZLR. 27a; aaarm? 61H01 mul J. M. R. FAIRBAIRN ANCHOR TIE PLATE Feb. 12 V, 1924. 1,483,792

Filed Sept. 22. 1922 4 Sheets-Sheet 5 HIM gf Z0 lf` n IH Feb. 12 1924. 1,483,792

J. M. R. FAIRBAIRN Filed Sept. 22, 1922 4 Sheets-Sheet 4 air,

Patented Feb. 12,1924.

starr-:s-

nner-Icaria rter-E.

napplication led'September 22, `1922. Serial IvNo. 589,826.

To all whom it. may concern:

Beit known that I, JOHN` M. R. Fixinnanima subject@` of the King of England, residing at MontreaL-in the Province of Quebec, Canada, have; invented'certain new and useful l:mprovemcnts in Janchor rl`ie Plates, of which't-he following'is a' specification.

rl'his invention relates toa novel' railholding tie plate possessingspecial utility-in facilitating. the accurate laying and seating of rails on ties without the'use, ifldesired, of the usual rail-holding` spikes-orY equivalent fasteners.

Primarily, therefore, the present invention contemplates a novely combination of features in atie plate responding to the requirements oftrack as to correctipositionY ing and seatingofthe rail, as wellas facilitating the convenient'laying andholding of the rail without being spiked down independently of the tie plate spikes as is now the practice.

Furthermore, itl is now considered by skilledengineers good practice to 'hold'the rail canted or inclined in' track, and to give it aseat on'a rail-plate seat crowning in the direction ofthe length of therail, thus better enabling the rail to properly absorb and distribute thel loa-'dingstrains- To that end the' present invention provides ai practica-l tie plate combining 'those features'together with the novel means for holding a rail to' gauge, as well as preventing displacement from its seat, and l'accomplishing thesedesirable results without the use of rail-holding spikes. i

As is wellknow'n tothose familiar rwith track conditions, there is a decided tendency of rails in either straight orcurved 'sections of track to roll out or become `tilted outwardly due to thecombination of forces acting upon the head `of the'frail, thus causing 'undesirabledisalinement and spreading ofthe rails. That is to say, 4owing to the wheel load acting vertically'and the wheel flange thrustacting horizontally on the head of the rail, there is a` tendencylfo'r the head of the rail to ycant outwardly fronr the gauge side. Under themostfavorable conditions of'I track, rolling stock, and speed, there would be very little wheel flange thrust against thel'rail. 'Anch if curves could be elevated to meet the requirements of each train, 1f car trucks pivoted freely, .andthe track could be maintained to a perfect line the rails would be negligible. 'll-lowever, since these ideal'conditions` are not entirely practicable, `the lateral wheel fiange thrust `and surface,-the lateral thrust or strain'on f becomes a factor thatmust be taken care of,

thus` making it ldesirable to cant or tip the rails inwardly-so as to bring'y the rail base in a plane approximately at right angles to the resultant of the combined vertical and lateral forces acting on t-he rail.

These conditions are recognized in the making of the present invention, which therefore is intended-to,.respond as far as practicable tothe ideal conditions recited, at the same time' making it possible to establish a new practice of accurately fitting tie plates'to theties in a shop foi-other place with shop facilities, and afterwards placing the 'ties in the road bed, properly alining the tie plates and hooking-in the rail on the tie plates without the use of spikes or equivalent fastenings'foren'gaging the rail.

A further object of the linvention is to provide a novel construction oftie plate which lends itself readily to theI application of a rail check or anti-creeping means, which may or may not be employed if' desired.`

It willbe seenthereforethat' the present invention providesl a construction which facilitates the emplacement of a rail 'in track, as Well as providing means for holding they same onto its seat without the necessity of spikingl to the flanges thereof, and at the same time having thef advantages incident to th'e use of atie plate presentin-gan inclined and crowned rail seat, `so distributingthe lateral thrust and the wheel loads as to firmlymaintain the position of the railfand allow the latterto adjust itself easilyunde'r the load. vAt the same time the improved 'construction permits the tiesto be bedded in ytheir usualy horizontal position.

In its more specific aspectitherefore the p resent t invention contemplates af 4novel railh'oldingitieplatecombining novel' structural features, includ-ing a seat designed yto better permit the Wave motion ofthe trail to carry tion and arrangement of parts hereinafter more fully described, illustrated and claimed.

Though the invention is necessarily susceptible of embodiment in modified forms of construction without departing from the spirit orprinciple of the invention, nevertheless, for the purposes of example, a preferred and practical embodiment of the 1nvention is shown 1n the accompanying drawings in which- 'Figure l is a plan view of one form of rail-holding tie plate containing the present invention.

Figure 2 is a view showing a rail positioned on the tie plate.

Figure 3 is a vertical cross-sectional view taken on the line SFS of Figure 2.

Figure 4 is a detail vertical sectional view taken on the line 4-4 of Figure 3.

Figure 5 is a det-ail view of a type of anticreeping means that may be employed if desired.

Figure 6 is a plan view showing another form of the improved tie plate that may be used with a compression spring check.

Figure 7 is a cross-section of the modified plate.

Figure 8 is a sectional view of the plate with a rail shown seated thereon.

Figure 9 is a detail view showing a modification of the plate, providing a recessed shoulder for holding the check spring in place.

Similar reference characters designate corresponding parts throughout the several figures of the drawings.

In carrying the present invention into 'effect it is proposed to provide a rail-holding tie plate l of suitable dimensions and having a rail seat 2, and a horizontal tie-engaging base 2a, of a suit-able character. A characteristic featureof the tie-plate is that the rail. seat 2 is inclined at a predetermined ratio, such as l to 20 or other ratio figured accurately to obtain a proper canting of the rail, so as to bring the rail base into a plane approximately parallel to the coning of the wheel. Furthermore, the inclined rail seat is preferably crowned transversely of the plate, as shown, the crowning being in the direction of the length ofA the rail, as indicated in Figures 4 and 7, thereby reducing the frictional area of the rail base with its seat and providing easement from the rail at the edges of the plate so that better freedom is given to the rail in its wave motion.

it the outer side of the rail seat 2 the tie plate body l is provided with an outer abutmentV shoulder 4, having an upright inner wall 5, while at the opposite side of the rail seat the tie plate is formed with an upwardly projecting inner abutment member 6. ln the suggested embodiment of the plate shown in Figures l-4, this inner abutment member may be formed with an inturned hook or holding flange 7 which overhangs the position of the inner flange of the rail, but this hook or flange may be omitted, under certain conditions, as hereinafter referred to. rllhe corners of the plate body l or'other portions of the plate relatively remote from the seat 2, and outside of the locations of the outer and inner abutment members 4 and 6, may be provided with the openings 8 for receiving the screw spikes 9 or their equivalent.

The novel construction of the tie plate l above described permits of the sliding of the rail R laterally onto the seat 2 from the outside of the plate so that the inside flange F of the rail becomes disposed beneath the overhanging portion 7 of the abutment 6, while the outer base flange F solidly engages with the upright shoulder 5 of the abutment 4. vWhen the rail is thus placed in position, it will be apparent that it is effectually and properly held, because it cannot slide laterally outward due to the abutment 5, and its inner flange cannot lift on account of the overhanging element 7. However, when it is desired to remove the rail for repairs or other reasons, workmen can readily lift the outer flange above the upright face of the abutment 4, and then withdraw the rail from its position beneath the hook.

rlhe design of the improved tie-plate lends itself readily to the use therewith of a suitable rail-check or anti-creeping means. Several different kinds of such checks can be employed, such for example, as those shown respectively in the groups of Figures l to 4 and 7 to 9 of the drawings. The example of check illustrated in Figures l to 4, consists of a key wedge or equivalent member l0 preferably interposed between the edge of one rail flange and the base part of the inner abutment member 6, thus holding the rail firmly against the outer should dr of the plate, and providing an effective anti-creeping check or rail anchor.

As shown in Figure 5, this check may consist of the key member 10 having a shank portion il provided with threads l2, the said threads being mutilated, as indicated at 13, to provide in eect fiat sides for the shank and reducing its width, producing a camming shank member of obllO of the rail and the inside face of the abut menty T withthe head or handle 14 of the key in an upright position, as shown in dotted lines in Figure t. rllhe said li-ead or handlel may then be struck a blow by a track man] or other similar tool to ldisplace itirom its uprightposition to alfiorizontaly position., as also shown by the dotted lines in Figure l andby the full lines in Figure 2. Vllhen the key is thus Jforcibly struc-lcV and rotated on the axis oit its shank, the widest part or major diameter or". the shank will be brought into play.y to` force `the threads or s-rrations thereo'l k into. biting engagement with the edge of the rail flange and also with the hook. Thus, the rail is eilectively held against longitudinal creeping and at the same time is forced into lirm engagement with the upright face of the shoulder 4 when the anti-creeping means is employed in connection with the tie plate. llllhen it is desired to remove the rail, the anti-Creeper may be readily withdrawn by prying up the head or handle 14- by means ot any suitable and ava-ilable tool which will release the engagement of the hook and the rail and permit of the saine being readily removed.

Referring to a desirable and practical embodiment ot the invention shown in Figures 6 to 9 ot the drawings, the inner abutment member G may be recessed as at 20 to receive therein a rail check in the `form of a modern compression spring 2l. This spring preferably is a leaf compression spring, waved throughout its length and disposed against the inner abutment 6 in a direction parallel to the inner rail flange which is intended to be placed under pressure against said spring. 1n this application of the invention the inturned holding hook or flange 7 of the inner abutment shoulder 6 may be omitted, as shown in Figure 9, as the powerful spring force eX- ertefl by said spring when under tension will ordinarily be sufficient to firmly hold the rail against the outer abutment shoulders l on the plate. ln this embodiment, it may be desirable,y as shown, to have a pair ot spaced outer abutment shoulders ll, against which the outer rail flange is held. with an intermediate fulcrum lug 23 bctween, but set back tro-m the said spaced abutments. This 'fulcruin lug permits aclaw bar or other tool tobe conveniently used in forcing the rail over the abutments la against the holding or check spring, as well as facilitating the prying outof the rail from its seated position. Holes 23 adjacent the ends of the spring 21 allordsimilar means to facilitate the seatn'ig or unseat `ing oi the spring.

From the foregoing it will be apparent that the present invention aiinsto provide a novel rail-holding tie plate for securing the rails in position without the aidofspikes engaging directly with the rail, thus permitting the adoption, itV desired, ofthe new practice ot' fitting the tie plates tothe ties ata shop or other place ot assembly with shop conveniences; atter which it will'only be necessary to position the ties in the road bed, with the tie plates properly aliiied, and then drop' the rail into position by sliding the inner [lange thereof beneath the: hook t3 and permitting the outer flange to drop behind the abutment shoulder Tfheinvention also permits ot the eftectualzuse` ot' a simple and practical' type of antiscreeping means, as explained.

VVit-hout. further description it is thought that the features and advantages of the improvement will be readily apparent to those skilled in the art, and it will of course be understood that changes in the form, proportion and minor details of construction may be resorted to without departing from the spirit of the yinvention or scope of the appended claims.

l claim: v

l. A tie plate provided with a horizontal tie engaging bottom surfaceand a. top`inwardly and downwardly inclining rail seat, said rail seat being crowned in the longitudinal direction ot the rail, a straight abutnient shoulder at the outer side or' the rail seat, and a rail-holding member located at the lower and inner side of the said rail seat. l

`2. A tie plate provided with a horizontal tie engaging bottoni surface and a top inwardly and downwardly inclining rail seat, said rail seat being crowned in the longi tudinal direction of the rail, a straight abutment shoulder at the outer side ot said seat and an inturned rail-holding member located at the inner side o' said seat and overhanging the inner flange position.

A tie plate provided with a horizontal tie engaging bottom surface and a top inwardly and downwardly inclining rail seat, said rail seat being crowned in the longitudinal direction of the rail, an abutment shoulder provided at one side of the rail seat and a relatively narrow rail-holding hook at the inner side of the railseat, and saidV tie plate being provided with spike holes disposed beyond and outside of the rail seat and the locations of said shoulders and said y hook.

l. A tie plate provided with a horizontal 6. A tie pate having an ncliningfand' Crowned rail seat, an abutn'ientl at the Outer side of the rai?L seat, Aan abut-nient;y at-the inner side oit' the rail seat, and antbcreeping means seated against one of the abutments and comprising a. conipressibe spring.

7., A combination or" a tie platev having an inclining and crowned rail seat, an abutnient member provided at the outer side of W, seat''an abutment member provided at the innerside oi" the seat,5 and a rail-holding.

sgringfseated against one er' the abutment members and adapted t0 engage under ten- `sion one rail flange.

The combination of a tie plate having anincinng and crowned rail seat, av recessed shoulder arranged at one side of the seat,- van abutment shoulder arranged at the .oppesite side of' the seat, and a bent 00mpressifbe leat spring seated in the recessed Shoulder and adapted to engageunder tension' an kedge of one raii Harige.

" fntestimon;T whereof hereuntoaix my :signature in the presence of two witnesses.

JOHN M. FARBARN. Witnesses P. HUIT, y F M. DUCKETT.

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