US 1195791 A
Description (OCR text may contain errors)
L. DUNCAN. coucnm RAiL'WAY TIE. APPLICATION FILED JAN. 14, I916.
.Patented Aug. 22, 1916.-
# TTORNEYS WITNESSES WM LEANDER DUNCIUN, 0F BUTTE, MONTANA.
To all whom it may concern:
Be it known that I, LEANDER DUNCAN, a citizen of the United States, and a resident of Butte, in the county of Silver-bow; and
Among the objects of the invention is to improve the construction of cross ties with respect to the composition of the ma n body thereof and the means for attaching the rails thereto, the main portion of the ties being made of reinforced concrete and the attaching means providing for cushions of wood or the like to deaden the noise and to increase the life or durability of the ties.
With the foregoing and other objects in view, the invention consists in the arrangement and combination of parts hereinafter described and claimed, and while the invention is not restricted to the exact details of construction disclosed herein, still for the purpose of illustrating a practical. embodiment thereof reference is had to the accompanying drawings, in which like reference characters designate the same parts in the several views, and in which Figure 1 is a plan view of one of my improved ties with the rails secured in place thereon; Fig. 2 is a vertical longitudinal section of one end of the improved tie, on the broken line 22 of Fig. 1; Fig. 3 is a vertical transverse section on the line 33 of Fig. 2; and Fig. & is a horizontal section on the line 4:1- of Fig. 2.
One ofthe disadvantages of a reinforced concrete cross tie, as they have been proposed heretofore, lies in the difliculty of securing the rails thereto in a convenient and reliable manner. Furthermore, concrete or metallic cross tieshave proved to be more or less unnecessarily noisy. By my improved construction I provide a cross tie made mainly of concrete, the body portion of which is shown at 10 suitably reinforced with metal at 11 in any approved manner, and at each end of the tie is formed or con stituted a head indicated generally at 12. The head consists, first, of a metal shell 13 of substantially rectangular form and providing an open-topped cavity or pit with n the Specification of Letters Patent.
l atented Aug. 22, l ifi.
bottom of which is fitted a cusnion 14 consisting of a block of wood or other suitable material constituting a deadener for noise. A pillow block '15 of metal or some other suitable, strong, rigid material is fitted upon the upper surface of the cushion and within the upper portion of the boxlike cavity of the shell. Removable fasteners 16 are passed upwardly through the bottom of the shell, through the cushion and the pillow block, thereby locking the pillow block from displacement from the shell. The sides of the shell prevent lateral displacement of the pillowblock and endwise displacement thereof is prevented by the end portion of the shell and the end of the concrete portion of the tie.
lhe inner end of the shell includes upper and lower ears 1'? and 18 which embrace the enlarged end portion of the body 10 and through which end ears a plurality of bolts 19 or their equivalent are passed. The shell may be made of cast iron or other suitable metal of suficient-strength-and rigidity for the purposes of the invention. The concrete portions of the ties being made of do tinite lengthand the shells being formed likewise of definite size and shape, the matter of applying the rails thereto is very much expedited.
Each pillow block comprises an upwardly projecting rail seat 20, at opposite ends of which are arranged rounded shoulders 21 spaced from each other according to the width of the base flange of the rail R. The curvature of the shoulders is so arranged that the ties may be readily accommodated to curves in the road or other conditions which may require a slight oblique angular arrangement of the rail with respect to the tie. A pair of lugs 22 project upwardly from the ends of the rail seat and above the shoulders. Said lugs are provided with transverse holes for fastening means 23 serving to secure clamping blocks 24. 50 the inner vertical faces of the lugs and snugly against the upper surface of the base flange, whereby the rail is locked easily and posi-' tively from displacement without the neces sity for using spikes or the like. Since the ties are made of uniform length and the dis tance between centers of the rail seats is in variable, the rails will always be positioned at a definite distance from each other. The pillow blocks with the lugs and. shoulders rounded as indicated, and
constituting parts of the same make a firm, reliable means for locking the rails to the ties.
I claim 1. The herein described railway tie comprising a body portion of reinforced con crete having an enlargement at each end, a rigid metal rectangular shell detachably secured to each enlargement, said shell constituting an open-topped box, a cushion block fitted in the lower portion of said box, a pillow block fitted upon the cushion block within the upper portion of the box, means locking the pillow block and cushion block in the shell, and means to secure a rail upon the pillow block.
2. In a railway tie, the combination of a einforced concrete body structure, a metal shell detachablysecured to each end of the body, said shell comprising an open-topped box, a pillow block supported and secured in said box, said pillow block having on its upper surface a rail seat, a pair of lateral shoulders adjacent the ends of the seat and adapted to engage the side edges of the base flange of the rail, said shoulders being a pair of clamping blocks bearing upon the upper surface of the base flange to hold the rail from tilt- Oopies of this patent may be obtained for live cents each, by addressing the ing or upward displacement from between said shoulders.
3. The combination in a railway tie, of a reinforced concrete body having an enlargement at each end, a shell for each end of the body and having upper and lower ears embracing the adjacent enlargement, fasteners securing the shell ears to the enlarged end of the body, the main portion of the shell constituting an open-topped rectangular box, a cushion fitted in the bottom of the box, a rigid pillow block supported upon the cushion, fastening means passed upwardly through the bottom of the box, through the cushion and pillow block, securing these parts together, said pillow block \having a pair of upwardly projecting lugs, that portion of the pillow block between the lugs constituting a rail seat, said lugs having transverse holes therethrough, a pair of clamping blocks fitted to the inner faces of the lugs and adapted to bind upon the top of the rail base, and removable fasteners securing the clamping blocks to the lugs, substantially as set'forth.
LEANDER DUNCAN. Witnesses:
W. T. BLEICK, CHAs. J. ANDRIEUX.
Commissioner of Patents.
Washington, D. C."