US2190999A - Combination shoulder for railroad tie plates - Google Patents

Description

Feb. 20, 1940- F. c. STOWELL 2,190,999

COMBINATION SHOULDER FOR RAILROAD TIE PLATES Filed March 1s, 1.938 2 Sheets-Sheet 1 Patented Feb. 20, 1940 Frank C. Stowell,Medford, Mass.

Application March 16, 1938, Serial .No. 196,224

4 Claims.

This invention relates to a new combination shoulderfor railroad tie plates such that while approximately two-thirds of the length of the rail retaining shoulder remains of the comparative form, size and weight of the shoulders as now commonly used, the central portion of the shoulder, about a third of the whole, is so enlargedas to permitof a form to receive and hold a rail clip fastening upon a tie plate and a rail base. The object of this shoulder design is to allow the use of either the present form of track spikes or rail clips singly or both types incombination. I

In contrast with present practice of track,

spikes which on account of their universally updrawn position, exert no vertical or lengthwise restraint of the rails, resilient rail clip fasteners are destined to increasing use as a means of restraining rail creeping lengthwise and so dispensing with use of present auxiliary rail anchors.

To the present, those patented designs of tie plates using the shoulders thereof to in part control rail clips, have employed radically enlarged shoulders of one uniform section across the tie plate. Of enlarged form and universally extending above. the rail base, such shoulders add objectional extra weight and cost without added strength to a tie plate. Confined to clip use only, they prevent the usual form of spiking singly or in combination with the clips.

The applicant, conscious from personal practice and contacts with prevalent track sentiments, that a possible combined used of both clips and drive or screw spikes in the same plate is desirable, has designed tie plate shoulders to so function and as described below, references being had to the accompanying drawings in which:

Fig. 1 is a partial side elevation of the outer half of a tie plate, a cross tie and cross section of a part of a rail base, all full size.

Fig. 2 is a corresponding plan view of the outer half of a tie plate, part of a rail base and cross tie, all full size. The rail clip shown in Figs. 1 and 3 is omitted from Fig. 2 to more clearly show special features of the tie plate shoulder.

Fig. 3 is an isometric view of a rail base, tie plate, rail clip and lag spikes.

In Figs. 1, 2 and 3, 5 is a rail base, 6 is a tie plate, 1 is a cross tie, 8 and 9 are component parts of a tie plate shoulder, in is a spike hole that may be round or square for screw or drive spikes to hook over rail base in common manner, H and I2 are lag spike holes that may be round (01. 238-304) or square for either screw or drive spikes to lag tie plate to tie.

In Figs. 2 and 3 the two opposite extremities of shoulder 9 retain the general form, size and weight commonly used on tie plates and for B about two thirds of the shoulder length add no extra weight or other deviation from the common shoulder types. The portion 8 of shoulder 9, about one third of the shoulder length, is a IUNITED STATESPATENT oFFics special enlargement and departure from the 10 usual shoulder form, to provide an adequate stock for a contour design to receive and assist in hold- 1 ing a rail clip upon the tie plate and rail base. For example, the outer face of shoulder enlargement 8 could be given theangular surfaces 15 most plainly indicated in Fig. l and which could receive a suitably shaped rib depending from the under side of a rail clip, the opposite extremities of which rest upon a tie plate and :a rail base. Such a clip is claimed in my application of June 16, 1936, Serial Number 85,532. The form. 8 is adequate to other ways of contacting and controlling various forms of rail clips. I am aware other forms of these parts are possible within the intent of my invention which contemplates other forms of those parts.

I claim:

1. In combination, a rail, a rail supporting tie plate having integral, parallel raised shoulders with continuous vertical faces to abut the opposite sides of a rail base, approximately two thirds of each shoulder, one third from either end, being of such comparable height with the sides of a rail base as to allow punching there- 1 through to receive a track spike to contact the side and top of a rail base, a central portion of said shoulder extending outward to overhang and form a subreentrant shoulder face of suitable obliqueanglewiththeback face of the tie plate shoulder to receive in movable contact a depending cross rib of a resilient rail clip, one end of said resilient rail clip being in resilient contact with the rail base and the opposite end being disposed Within a vertical recess in the top surface of the tie plate, said recess holding the resilient clip in movable contact with said oblique reentrant outer face of the tie plate shoulder.

2. In combination, a rail, a rail supporting tie plate having integral, parallel raised shoulders with continuous vertical faces to abut the opposite sides of a rail base, approximately two thirds of each shoulder, one third from either end, being of such comparable height with the sides of a rail base as to allow punching therethrough to receive a track spike to contact the 56 side and top of a rail base, a central portion of said shoulder extending outward to overhang and form a subreentrant shoulder face of suitable oblique angle with the back face of the tie plate shoulder to receive in movable contact a depending cross rib of a resilient rail clip, so that when the resilient rail clip is placed on the rail and tie plate, the lower edge of a depending rib of said resilient rail clip rests just within the upper extremity of the oblique, re-

entrant face of the tie plate shoulder and by forcing the resilient rail clip towards the plate shoulder until the plate end of the rail clip falls within a prepared vertical recess in the top surface of the tie plate, the depending resilient rail clip cross ribis forced downward and inward and movably against the oblique, reentrant plate shoulder face, while the rail end of the resilientrail clip is resiliently forced further up the rail base slope, and the plate end of the resilient rail clip'is seated in the recess of tie plate.

3. In combination, a rail, a rail supporting tie plate having integral parallel raised shoulders with continuous vertical faces to abut the opposite sides of a rail base, approximately two thirds of each shoulder, one third from either end, being of such comparable height with the sides of a rail base as to allow punching therethrough to receive a track spike to contact the side and top of a rail base, a central portion of said plate shoulder extending outward to overhang-and form a subreentrant shoulder face of suitable oblique angle with the back face of the tie plate shoulder to receive a depending cross rib-of a resilient rail clip, so that when the tie plate end of the resilient rail clip is seated ina vertical recess in the top surface of the tie plate, resulting in the maximum pressure of the depending cross rib of the resilient rail clip against said oblique, reentrant outer face of the tie plate shoulder and the maximum pressure of the resilient rail clip upon the rail base, the spring arch construction of the plate side of the resilient rail clip will allow the depending cross rib of the resilient rail clip to back and rise slightly and automatically reseat to supplement the resilient spring action of the rail l end of the resilient rail clip, while pressing upon a and receiving the vertical upthrusts of the rail base.

4; In combination, a rail, a rail supporting tie plate having integral parallel raised shoulders suitable oblique angle with the back face of the plate shoulder to receive the depending cross rib or", a resilient rail clip, so that when the tie plate end of the resilient rail clip is seated in a vertical recess in the top surface of the tie plate, resulting in the maximum pressure, of the depending cross rib of theresilient rail clip against said oblique reentrant outer face of the tie plate shoulder and the maximum pressure of the resilient rail clip upon the rail base, the spring arch construction of the plate side of the resilientv rail clip will allow the depending cross rib to back and rise and automatically reseat, while freeing the plate end of the resilient clip from said recess in the plate, automatically wholly releases the resilient rail clip.

FRANK C. STOWELL.

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