US934941A - Bolster for steam-shovels. - Google Patents

Description

W. SHBPPARD.

BGLSTBR Foe STEAM sHoVBLs.

APYLGATION FILED APRA/1, 1909.

I NV N T R mail@ M16@ Atty.

Patented Sept. 21, 1909. 2 SHEETS-SHEET l.

Wl' NESSES W. SHEPPARD.

BOLSTER FOB STEAM SHOVELS.

APPLICATION FILED APR.2, 1909.

Patented Sept. 21. 1909.

2 SHEETS-SHEET 2.

. y INVEHTOR Mal/U I (.1. fa@ Atty.

man". L ma rnoruumownlins, WAMW. u. a

WILLIAM SHEPPARD, OF PATERSON, NEY'V JERSEY MOTIVE COMPANY, OF NEVI YORK, N. Y., A C

BOLSTER FOR STEAIVI-SHOVELS.

Application filed April 2,

Specification oi Letters Patent.

1909. Serial No. 487,580.

To all whom it muy concern.'

Be it known that l, lilium). Siiailifiiio, of Paterson, in the county or' Passaic and State of New Jersey, have invented a certain new and useful niprovemeiit in lolsters for tflteain-Shovels, ot' which improvement the following is a specilication.

The object ot' my invention is to provide simple and eli'ective means whereby a steam shovel which is supported on ordinary car trucks Jfor traversing railroad tracks may be readily adapted to be moved over common roads, or one which is supported on road wheels may bc fitted with car wheels, as cire cumstances may, in either case, require, the change being eliected with an economy of time and material and facilities atl'orded for tiussing the axles of road wheels.

The improvement claimed is hereinafter fully set forth.

ln the accompanying drawings: Figure l is a side view, in elevation, of the frame ol a steam shovel, supported on trucks for running' on a railroad; Fig. 2, an end view or' the saine; Fig. 3, a longitudinal central section of the saine, supported on road wheels by the application of my invention; Fig. d, a vertical transverse section, taken in the "flans ot a road axle; Fig'. 5, a top view, on

an enlarged scale, of a bolster embodying' my invent-ion, when applied as shown in Fig. 4e; Fig. G, a side view of the saine, and, Figs. 7, 8, and 9, vertical transverse sections, on a further enlarged scale, through the bolster, on the lines am, oo, and co, respectively, of Fig. G.

My invention is herein shown as applied in connection with the traine, l, of a steam shovel, the operative mechanism of which may be of any suitable known type, and which, as it does not form any part of my invention, is not illustrated. As shown in Figs. l and 2, the steam shovel frame, including, of course, whatever mechanism may be carried thereon, is adapted to travel on a railroad track, being supported on and carried by two car trucks, 2, 2, which may be of any suitable and preferred type, and are adapted to swivel, in the usual manner, about pivots or center pins near the ends of the frame.

In order to enable the steam shovel to be readily adapted to be moved, on road wheels, over' common roads, or if originally supported on road wheels, to be transferred to l car trucks for ruiming over ra l provide, i'or one ot frame, a cast metal reversible is a beam,

to say, having a central. w and bottom lateral tlanges, from each side thereof. The

l ster, being the tace next is tapered or ter bearing,

or near each ot' its ends.

2b, of the truck, and the itorated with a plurality of bolster is secured to the tran are used.

When it is desired to mount or turned over, as shown in ter bearing, 3C, is fitted in a rator or bearing casting,

shovel from road wheels to a shown in Fig. 2.

The opposite end of the frame is indicated in Fig. on road wheels or largerl versible bolster' is applied. of said opposite end of the f Patented tieAL disposed in two parallel rows, tor the passage ot short straight bolts, Ll, by which the ASSIGNOR TO ATIERICAN LOCO- GRPORATION OF NEVI YORK.

at. si, ieee.

ilroad tracks, l

the end portions oit' the bolster, which of substantially l-i section, that eb, 3, and top 3U, pvi'ojecting top or the boltlie frame, l, when the same is supported on trucks, as shown in Fig. 2, is llat, and the bottoni of the bolster inclined from a (':ylindrical cen- 8, which projects below it, and lits in the center casting, 211, of the truck, to Side bearingsL 8d, are formed on the bolster, at a proper distance apart to stand over the side bearings, top i'langes are per bolt holes, o,

ie when trucks the frame and the steam shovel carried upon it, on road wheels, 5, for transportation on common roads, the bolster is removed and reversed F ig. d; the censoclet in a sepala, lixed to the frame of the steam shovel; and the axle, 5a, is secured to the bolster (l, passing through the bolt holes, 3e, and made tight by nuts, Ga,

n this position 3d, ot the bolster stand below corresponding side bearings, lb, fixed to ecured, at one end, to a brace casting, 4th, fixed to the botand is secured, at its opthe frame, l,

the axle, which does not It will be seen acts as a truss or brace for thereby enabling much lighter than would otherwise be practicable. To change the support it to be made of the steam truck, the bolster is located and secured iu the position steam shovel rame, a device of different construction is provided, Which, as it does not form part of my present invention and constitutes the subject matter of a separate application iled by me May l0, 1909, Ser. No. 495,082 Will not be herein set forth.

The improved reversible bolster above described is of substantial and inexpensive construction, and of ready applicability in connection with the steam shovel frames and trucks in ordinary use. Its advantages, in ctfecting the transfer from one to the other class of supports, and in strengthening the road axle, Will be obvious to those skilled in the operation or' mechanism of the character to which my invention relates.

I claim as my invention and desire to secure by Letters Patent:

l. T he combination of a steam shovel Jframe, a reversible bolster adapted for connection either to a railroad car truck or to a Wheeled road axle, a Wheeled support, and bolts for connecting said bolster to the frame or to the Wheeled support.

2. The combination of a steam shovel frame, a reversible bolster adapted for connection either to a railroad car truck or to a Wheeled road axle, and having a plurality of bolt holes on one of its faces, and a center bearing on its opposite face, a Wheeled support, and bolts for securing the bolster, through its bolt holes, either to the frame or to the Wheeled support.

3. The combination of a steam shovel frame, a reversible bolster having a fiat ir'ace secured detachably to the frame and a center bearing on an opposite face Which is upwardly inclined on each side of said bearing, and a railroad car truck having a center bearing fitting that of the bolster.

t. A reversible bolster for the frame of a steam shovel, having one of its longitudinal faces hat, and its opposite :tace upwardly inclined from points near its ends to its middle, a cylindrical center bearing projecting from the middle of its double inclined face, side bearings projecting 'from said face on opposite sides of the center bearing, and two rows of parallel bolt holes in its fiat face.

VILLIAM SHEPPARD. lVitnesses SAMUEL PERGEY, CHARLES EVANS.

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