US366455A - Charles e - Google Patents

Description

(No Model.)

O. E. GANDEE.

MOLD FOR AXLE BOXES.

Patented July '12, 1887.

INVENTOR 6 5 BY JMM/Yl/W ATTOR WITNESSES UNITED STATES PATENT OFFICE.

CHARLES E. OANDEE, OF NE\V YORK, ASSIGNOR TO HIMSELF, AND ALBERT G. STORY, OF LITTLE FALLS, NE\V YORK.

MOLD FOR AXLE-BOXES.

SPECIFICATION forming part of Letters Patent No. 366,455, dated July 12, 1887.

Application filed April 16, 1896. Serial No. 199.078. (No model.)

To all whom '1' b may concern:

Be it known I, GnAnLns E. OANDEE, of the city, county, and State of New York, have invented a new and useful Improvement in the Manufacture of Axle-Boxes for Railroad-Cars and other Axles or Shafts, of which the following is a full, clear, and exact description.

This invention more especially relates to railroad-car axle-boxes, and has for its object IO the production of an axle-box made all in one piece, and having an interior chilled metal surface,which description of axle-box is made the subject of a separate application for patent by me simultaneously with this.

The invention consists in a novel construction and combination of the mold and its cores used in casting the axle-box, substantially as hereinafterdescribed, and pointed out in the claim.

Reference is to be had to the accompanying drawings, forming apart of this specification,in which similar letters of reference indicate corresponding parts in all the figures.

Figure 1 represents a plan view of the mid dle one of a series of flasks and of the pattern in part of certain sand and metal cores used in casting the axle-box; Fig. 2, a vertical section upon the line 00 (v in Fig. 1 of the same with the upper flask added; Fig. 3, a view in perspective of the divided metal core used to produce a chilled surface on the interior of the axle-box, and Fig. at a vertical section of the axlebox as it comes from the mold.

The axle-box to be produced consists of an outer cast-metal shell, A, Fig. 4, of rectangular form on the exterior of its body, but ofcylindrical form on its interior, with side projections, b b, on its sides to adapt it to fit the pedestal which carries it, and open at its one or outer end, 0, the full extent of its interior diameter, but partially closed by an inner flange, d, at its opposite end,to admit of the entry of the axle within it, the whole to be cast in one piece, and having its interior made to present a .1 5 chilled-metal surface, 0, arranged to stop short of the open outer end, 0, of the box to provide for the securing of a cap-plate therein after an independently rotatable roller bearing, designed to work in contact with said chilled.

0 surface and with the axle, has been inserted within the box.

To cast such an axlebox, I use, in order to provide for withdrawing the pattern,threc separable box parts or flasks, B O D, mounted one upon the other when pouring in the molten 5 metal through an upper gate, f, to form the casting, as shown in Fig. 2. The pattern, which is constructed in a suitable number of sections, corresponds in shape to that of the axle-box to be produced,as shown by the space y in Fig. 2. Thcupper section of the pattern, which takes in the flange portion 11 and its adjaccntsideprojections, b, is contained within the upper flask, B. Its lower section, which takes in the opposite end and adjacent side projections, I), is contained within the lower flask, D, and its body part within the middle flask, C. These patternsections may be subdivided, if desired, in direction of the depth ofthc n1old, as shown in Fig. 1, to facilitate 7a the removal of the sections from the sand.

A fter the divided pattern has thus been molded in the several flasks with green sand h, as shown in Fig. 2, leaving the portion of the middle flask within the body part of the pattern vacant, said top flask being removed,a metal core composed of two segments, EE, of a cylinder, corresponding to the interior of the body of the pattern, is centered and introduced down within the body part of the pattern in contact with the interior thereof, leaving a vacant space, It, between said segments in the middle flask, C. These metal segments E E are used to give the interior chilled surface, 0, to the axlebox, and are recessed, as at i, on their upper ends. After being inserted and adjusted to their places in the body of the pattern, the vertical space It left between them is packed with sand h up to the recess iin their upper ends, which recess is afterward filled with a go hard-sand core, Z, to limit the exposure of the chilled core at said part to conform to the chilled surface required in the axle-box. The sand h in the lower flask, D, is provided with a core portion, h, extendingup against the ends of the segmentsE, toprcvent the outer 0 end, 0, of the axle-box from being chilled. The body part of the pattern is then removed from the middle flask, the portion of the pattern in the lower flask having been previ- 10o ously removed, and said lower flask mounted by the middle one. The top flask, B,with its portion of the mold, is then fitted to its place over the middle flask, and the molten metalto form the casting poured into the mold. The casting of axle-box produced will be .the same as shown in Fig. 4, with the interior chilled surface, 6, made to stop short of the outer end hollow metal bodies requiring an interior circular chilled-metal surface. Such, therefore, I do not separately claim.

Having thus fully described my invention, I claim as new and desire to secure by Letters Patent- The combination of the mold having the sand-core portion h, the metal core composed of separated metal segments E E, having a recess, '5, in its upper or opposite end, thefilling of yielding material between said segments,

and the baked-sand core Z, forming a filling Within said recess 2', essentially as and for the purposes herein described.

CHARLES E. OANDEE. Witnesses: Y

O. SEDGWIOK,

J NO. MATHEW BITTER.

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