US1669124A - Turntable - Google Patents

Description

May 8, 1928. 1,669,124

H. F. GRAVES TURNTABLE Filed April 28, 1927 2 Sheets-Sheet 1 gInW HE'G'rat/es I a ike: we

Patented May 8, 1928. I

UNITED'STATES] HARRY F. canvas, or esnrInLn, nnsjsncnnsn'r'rs.

TURNTABLE.

Application filed April as, 1927. Serial 1%. 187,258.

This invention relates to turn-tables, such as generally constructed for reversing and switching locomotive engines, and provides a novel locking means vfor holding the device in the ,desiredadjusted position when it is required to release the structure. preliminary to turning the same to meet existing conditions. a H The invention contemplates a .steel frame set in the wall of theturntable pit opposite each of the tracks connecting with thesaid pit, a lock bolt at each end of the turntable,

-. an operating lever for each ofthe lock bolts,

and a system of bell cranks and connections between each of the operating levers and a lock bolt, both operating levers being con-v veniently positioned to be actuated from the operators cab, or other determinate point.

While the drawings illustrate a preferred embodiment of the invention, it is to be understood that in adapting the means to meet specific needs and requirements, the de sign may be varied and such other changes in the minor details of construction may be,

resorted to within the scope of the invention as claimed, without departing from the spirit thereof. 3

For a full understanding of the invention and the merits thereof, reference is to be had to the following description and the drawings hereto attached, in which,-

Figure 1 is a top plan view of a turntable embodying the invention.

Figure 2 is a vertical, approximately central sectional view thereof.

Figure 3 is an enlarged sectional view on the line 33 of Figure 1, looking in the direction of the arrows. v

Figure 4 is a fragmentary elev'ational view of an operating lever and associated parts.

Corresponding and like parts are referred to in the following description and designated in the several views of the drawings by like reference characters.

The numeral 1 designatesthe turntable which may be of any approved construction and 2 is the pit in which the turntable is mounted. The usual circular track 3, in conjunction with the pivot 1, supports the turntable in a manner well operators cab 5 is located at one end of the turntable and to one side of the track thereon. A plurality of tracks 6 lead from the pit and are adapted to connect with the understood. The I track carried by the turntable in a manner well understood. I I c In. accordance with the invention the wall.

ofthe pit-2 is provided with an opening op-- posite the end of each of thetracksfi and is adapted to receive a steel frame '7. which 'forms a socket to receive a/lock bolt 8. There is provided a lock bolt Sat each end I of the turn-table and these look bolts are adapted to ,coact with the reinforcedsockets 7 to secure the turntable in'the require-d ad.-

justed position. A box or casing 9 mounted upon each end of the turn-table receives the" lock bolt 8 which operates.therethrough and receives a coil spring 10 arranged to hold.

the lock bolt in engagement with the socket into which it has-been projected upon oper ating the lever. A post 11 is attached to the substructure of the turn-table and constitutes a mount for a bell crank 12. It is understood that a post 11' isrprovidedffor' each end of the turntable. A wire .13, or,

other suitable connection, joins an arm of each of the bell cranks 12 with the cooperating lock bolt 8. Other posts 14 are arranged at one side of'the turntable and attached to the substructure thereof and support bell cranks 15. A wire, or connection, i

16. joins the other armof the bell crank 12 with an arm of the respective bell cranks 15. Two operating levers 17 are located at one end of the turntable so as to be readily accessible to the operator for actuation when it is required to release the turntable preliminary to shifting. the same, as required. The operating levers 17 are disposed with in convenient reach of the operators cab, 5. Each of the levers 17 is provided with the usual hand latch 18 and a notch bar 19 whereby to hold the levers when moved to a position to withdraw the lock bolts 8 from engagement with the wall of the pit, thereby admitting of the turntable being rotated in the accustomed way. A wire 20, or other preferred connection, joins the other arm of each of the bell cranks 15 with an operating lever 17 and in this manner both of the lock bolts may be releasedfrom a given point which, as shown, is preferably adja cent the operators cab 5.

table.

of locking mechanisms may be actuated from the operators cab, thereby saving time and insuring the functioning of both look ng mechanisms at all times.

The steel frames 7 are set into the wall of the pit when constructing the same. The

springs 9 do not project the bolts 8 but hold them projected when shot into the sockets by operating the levers.

Having thus described the invention, I claim:

1. In combination with a turntable and its pit, of a locking member at each end of the turntable adapted to engage the wall of the pit. a bell crank at each end otthe turntable and having an arm connected with the locking member, a second bell crank at the side'of the turntable and having an arm connected with the other arm of the first men- 'tioned bell crank,'juxtaposed operating levers adjacent an end of the turntable and a connection between each of the operating levers and the other arm of the respective bell cranks mounted at a side of the turn- 2. The combination with a turntable and its pit, of lock bolts at the ends of the turntable, posts secured to the said structure of the turntable and disposed some distance from the ends thereof, bell cranks mounted upon said posts, connecting means between the lock bolts and an arm of the bell crank,

other posts at a side of the turntable and secured to the substructure thereof, bell cranks mounted upon the last mentioned posts, connecting means between an arm of the side bell cranks and the other arm of the first mentioned bell crank, juxtaposed operating levers adjacent an end of the turnstructure of the turntable a distance from each end thereof, bell cranks mounted upon the side posts, connecting means between an arm of the bell crank at the side of the turntable and the other arm of the center bell cranks, juxtaposed operating levers adjacent an end of the turntable, and connecting means between the respective operating levers and the other arms of the respective side bell cranks.

In testimony whereof I afiix my signature.

HARRY F. GRAVES. [1 5.]

Images