US217438A

US217438A - Improvement in core-boxes

Info

Publication number: US217438A
Authority: US
Publication date: 1879-07-08
Anticipated expiration: 1896-07-08

Description

A.T. WHITEHOUSE.

Gore-Box.v

No. 217,438. Patented July 8,1879.

N-KPETERS. PHOTOMTI'IDGRAPHEFA WASHINGTON. D4 C.

UNITED STATES PATENT Orrion.

ARTHUR T. WHITEHOUSE, OF SOMEBVILLE, MASSACHUSETTS.

IM PROVEM ENT IN CORE-BOXES.

Specification forming part of Letters Patent No. 217.438, dated July 8, 1879; application led September l?, 1878.

. sandsmud workingin between the guide and core-box, as is frequently the case when colt structed in the old form, as now in general use; and a further object is tolprovdc a slicker-roll to press the material forming the core into the core box without liability of cracking or separating theplastic material when forcing the same into the core-box by the sliding slicker heretofore employed in displacing and removing the surplus material beyond the amount necessary to lill the box, as heretofore; and it consists in the combination and arrangement of lugs having hooked ends secured to theside guides, which en gage with suitable projections formed upon the sides of the core-box, and held in position by the usual metal clamps; andalso in a rotary v iressero1revolvin0slicker77 )rovided with a suitable handle, to which the roll of desired form is pivoted or journaled, as hereinafter more fully described and set fort-l1.

Figure 1 represents a perspective view of my invention as in actual use. Fig. 2 is a view of a transverse section of the core-box.

Arepresents vthe core-box of any desired form, provided with the side guide-pieces B B, having the downward-projecting lugs C C C, `which are provided with hooked ends E E E, which hold under the projections F F F on each edge or side of the core-box A, as shown -in Fig. 2. H H represent clamps ofthe usual construction, which are applied to each end,

as shown in Fig. 1, and are held temporarily in place by the set-screws Gr, as heretofore.

The sideV guides B B thus adjusted, the corebox is iilled with the usual plastic material for forming` the core, the upper surface of which is ready to receive the proper form by the slidingV slicker; and to remedy this defect l employ a rotary' slicker, as shown in Fig. 1, composed of a roll, L, journaled to a handle, 1, by the wire frame J, the ends K of the roll L resting or bearing upon the top of the two guidepieces B, as shown, being rolled backV and -forth over the material until it is evenly and thoroughly pressed into the core-box, after which it is removed and iinished in the usual manner.

By meansl of the above-described devices 1 am enabled to form an elliptic or thin-edged core with well-defined edges, and remove the same from the core-box without injury in an expeditious manner, thus producing a superior core for use in casting hollow ingots, to

be drawn into seamless tubing.

Having thus described my invention, what I claim is 1. In combination with the core-box A, hav- .ing projections F, the guidepieces B, havin g lugs C and hooked ends E, substantially in the manner described, as and for the purposes set forth.

2. In combination with the core-box A, provided with side guides B, the rotary slickerroll L, having gage-journals K K, adapted to roll upon and having ends bearing against the inner face, the parallel guides B, so as to form the upper surface of an elliptic core, to correspond with that formedrin the box, substanl tially as set forth.

ARTHUR T. WHITEHOUSE.

Witnesses:

SYLvENUs WALKER, H. S. TALBOT.