US823482A - Locomotive-truck. - Google Patents

Description

PATENTEDJUNE 12, 1906. J. PLAYER. .LOGOMOTIVB TRUCK.

APPLIOATiONIfILBD AUGJ 29, 1905.

2 SHEETS-$111213 1.

8 u n N H W No. 823,482. PATENTEDJ UNE 12,- 1906.

'J PLAYER. LOOOMOTI VE TRUCK. APPL'IQATION FILED AUG.-29;'1905.

RISEEETS-SHEIFT 2.;

WITNESSES UNITED STATES JOHN PLAYER, OF SCHENECTADY, NEW

PATENT rion YORK, ASSIGNOR TO AMERICAN LOOOMOTIVE COMPANY, OF NEW YORK, N. Y., A CORPORATION OF NEW YORK.

LOCOMOTEVE-TRUCKB Specification of Letters Patent.

Patented June 12, 1906.

Application filed. August 29.1905. Serial No. 276,191,

To all whom it may concern:

Be it known that I, J our PLAYER,-ofScl1en ectady,- in the county of Schenectady and State of New York, have invented a certain new and useful Improvementin Locomotive- Trucks, of which improvement the following is a specification.

My invention relates to two-wheel leading or trailing trucks for locomotive-engines of the type known as swing or lateral-ino' tion trucks; and its object is to provide a lar in truck of such type in which the frame shall be of strong and simple construction and pro vide facilities for the application and location of the springs in such manner as to reduce the compass of the truck and prevent interference with the main frame of the engine, and also to enable the swing-beam and links to be compactly disposed and properly connected.

The improvement claimed is hereinafter fully set forth.

In the accompanying drawings, Figure 1 is a plan or top view of a locomotive-truck embodying my invention; Fig. 2, aside view in elevation of the same; Fig. 3, a front view, and Fig. 4 a vertical longitudinal central sec tion. I

My invention is herein shown as applied in a twoheeled leading truck adapted to support the front portions of the mainframe of a locomotive-engine and the weight which is carried thereon. The truck-frame 100 is formed in an integral casting, which is substantially rectanguallel front and rear members extending transversely of the locomotive, which are connected at their ends by shorter side members extending parallel to the longitudinal central plane thereof and presenting plane lower aces for the attachment ofpedestals. A pair of pedestal-jaws 101 is securely attached to each of the side members of the frame, and the jaws of each pair are connected adjacent to their lower ends by pedestal tie-bolts 102,

' which pass through thimbles or spacingpieces 103, interposed between. the jaws, and are provided with nuts 102, by which they are drawn to a proper bearing thereon. The front and the rear jaws on the opposite ends of the frame are respectively connected by tie-b0lts104, extending below and parallel with the front and rear members of the truckplanthat is to say, comprises par-.

I frame, said tie-bolts being shouldered .or otherwise adapted to serve as spacing mem- 1 bers between the inner sides of the opposite jaws and being fitted with nuts 10% on .heir 1 ends, which bear on the outer faces of said jaws. In the instance shown washers 104 fitted on the tie-bolts, abut against the inner sides of the jaws and are held in position by cotters 10 i, passing through the tie-bolts. A recessed spring-bearing 105 is formed in each of the side members of the truck-frame above and centrally between the pedestaljaws of said side member. A V-shaped radiusbar 106 is bolted at its forward ends to the side members of the truck-frame and has an eye 106" formed at its rear end for the reception of a'pin, by which it is pivoted to the main frame. Brace-rods 107 are connected to the legs of the radius-bar near its eye, and

their forward ends are turned downwardly and connected to the rear pedestal-jaws by the tie-bolts 104. v The truck-wheels 2 are secured in the usual manner on the outer ends-of the axle 2, 4

the journals 2 of which rotate in bearin s 2 fixed inaXle-boxes 2 each of which is fitted to traverse vertically between the members of one of the pairs of pedestal-jaws 101. The truck-frame is supported on the axleboxes through the intermediation of helical springs 108, which seat in recesses 0n the tops of the axle-boxes, their upper ends being inclosed in and abutting on the springbearings of the truck-frame. It will be the main frame of the locomotive for the pur-.

pose of facilitating the passage of the locomo: tive to, through, andfrom curved portions of the track is provided for by means of a swingseen that under this construction the proper moreover, left enbeam 109, which is located within the open space between the members of the truckframe and is suspended therefrom at each of its ends by pairs of swing-hen ers 110, the 1 upper ends of which pass throug openings in the front and rear members of the truckframe and are each pivoted thereto by two upper swingdianger pins 111, which fit in open-bottomed recessesin the swing-hangers. The lower ends of the swing-hangers are coupled to the swing-beam by lower swinghanger pins 112, the construction being of the general type known as a three-point suspension. The swing-beam 109' is proided with a cylindrical recess in its top and constitutes a lower center casting, and a cylindrical upper center casting 113, suitably connected to the main frame of the locomo- Live, is fitted with the capacity of relative rotary motion in the recess of the swing-beam. A center pin 114 passes centrally through the upper and lower center castings.

While in the instance herein exemplified my invention is shown as applied in a truck having its bearings located inside the wheels, it will be obvious to those skilled in the construction of railroad rolling-stock that itis equally and u'thout variation of structural or operative principle applicable in trucks having their bearings outside of the wheels.

T he above-described construction provides a truck which is of ample strength and ready adaptability in standard locomotive designs and which by reason of the con'iparatively small number of members and connections used'is of simple and. inexpensive constructi on and can be readily assembled and taken apart when required for purposes of renewal or repair. The compactness and protected location of the springs, swing-beam, and hangers will also be recognized as being of substant ial advantage in railroad service.

I claim as myinvention and desire to secure by Letters Patent- 1. Aframe for a lateral-motion truck, comprising, in an integral structure, front and rear members extending transversely to the longitudinal central plane of a locomotive and connected by shorter side members having plane lower faces for the attachment of pedestals, and recessed spring-bearings 'or'rned on the side members.

2. In a lateralmoti on truck, the combination of a substantially rectangular integral frz'nne, pairs of pedestal-jaws fixed to the side members of said frame, pedestal tie-bolts connecting the jaws of each pair, and tie-bolts extending through and connecting the jaws of the opposite pairs.

3. In a lateral-motion truck, the combination of a substantially rectangular integral frame, having recessed spring-bearings formed on its side members, pairs of pedestal-jaws fixed to the side members of said frame, means for bracing the edestal-jaws both transversely and longitu inally of the frame, and a radius-bar fixed to the frame adjacent to the pedestal-jaws.

4. In a lateral-motion truck, the combination of a substantially rectangular integral frame having recessed spring-bearings on its side members, pairs of pedestal-jaws fixed to the side members on opposite sides of the spring-bearings, axle-boxes fitting between the pedestaljaws, and springs interposed be tween and bearing "on the axle-boxes and spring-bearings.

5. In a lateral-motion truck, the combination of a substantially rectangular integral frame,having recessed spring-bearings formed on its side members, pairs of edestal-jaws fixed to the side members of sai frame, axleboxes fitted between said pedestal-jaws, an axle having wheels fixed upon it and journaled in said axle-boxes, springs through which the weight on the frame is transmitted to the axle-boxes, a swing-beam located in the rectangular space between the frame members, and swing-hangers throu h which said swing-beam is suspended on t e frame members.

6. In a lateral-motion truck, the combination of a substantially rectangular integral frame having recessed spring-bearings on its side members, pairs of pedestal-jaws fixed to the side members on opposite sides of the spring-bearings, axle-boxes fitting between t1e pedestal-jaws, springs inter osed between and bearing on the axleoxes and spring-bearings, an axle having Wheels fixed upon it and ournaled in said axle-boxes, a

swing-beam located in the rectangular space between the frame members, and swinghangers through which said swing-beam 1s suspended on the frame members. JOHN PLAYER. I/Vitnesses:

J. W. STAFF, GEORGE WAGSTAFF.

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