US533634A - Xhe k korsis pettfts co - Google Patents

Description

(No Model.) 2 Sheets-Sheet 1.

A. GORBETT.

CHILL. V

Patented Feb. 5, 1895.

amen/13oz 2 Sheets 2 OQRBETT.

CHILL.

Patented Feb. 5, 1895.

(No del.)

UNITED STATES PATENT OEEcE.

ABRAHAM GORBETT, OF HAGERSTOIVN, MARYLAND, ASSIGNOR, BY MESNE ASSIGNMENTS, TO ANN R. OORBETT, OF SAME PLACE.

CHILL.

SPECIFICATION forming part of Letters Patent No. 533,634, dated February 5, 1895.

Application filed June 19,1894. Serial No. 515,041. (No model.)

To ctZZ whom it may concern:

Be it known that I, ABRAHAM CORBETT, a citizen of the United States, residing at Hagerstown, in the county of Washington and State of Maryland, have invented certain new and useful Improvements in Chills; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to certain new and useful improvements in chills, and is designed particularly for use in the operation of casting a suitable base on and about the lower end of a fence post. It is desirable in apparatus of this general character that means should be provided for properly guiding the chill so that it may seat itself upon the flask in exact position above the casting cavity therein, without requiring any supplemental adjustment or any defective result or loss of time incident thereto. It is furthermore desirable that the chill should be provided with means for quickly and effectually centering the post and holding it rigidly in place during the casting operation, but readily detachable as soon as the casting has been completed. My invention comprises an apparatus realizing these requirements, and permitting a great number of posts to be provided with bases cast thereon, at a small expense, and with the employment of comparatively unskilled labor.

In the accompanying drawings, Figure 1 represents a top plan view of one form of chill embodying my invention, and showing a fence post secured therein prior to casting. Fig. 2 represents a central vertical section thereof, the chill being shown in position upon the flask. Fig. 3 represents a top plan view of the guide for centering the chill upon the flask. Fig. 4 represents a top plan view of a modified form of chill. Fig. 5 represents a front elevation of one of the separable parts thereof; and Fig. 6 represents in vertical section a chill of the kind shown in Figs. 1 and 2 but having a different means for securing the post in place. Figs. 7 and 8 represent respectively a sectional view and a plan view of a further means for securing the post in place within the chill.

Similar letters of reference indicate similar parts throughout the various views.

Referring to the form of the invention shown in Figs. 1 to 3, A indicates the main body portion of the chill, which is, as usual, made of metal and has a pouring hole or gate a and a chill recess b. This main body portion is provided with a collar 0, integral with it, which collar is bored centrally at (1 so as to have an inner diameter somewhat in excess of the fence posts to be inserted therethrough, one of which isindicated ate. The

purpose of this collar is to serve as a means for guiding the fence post within the chill and to permit it to be securely but removably clamped in exact alignment with the center of the chill recess 1). The preferred clamping means for this purpose consists of the set screws f of any suitable number, said set screws passing through appropriate openings in the collar and being adapted by means of a Wrench to clamp the fence post in place as indicated in the drawings. Instead of the set screwsf, however, I may employ, if desired, two tapering keys f (see Fig. Gfiadapted to be driven at right angles to each other, through openings in the collar, and through openings in the fence post as will be readily understood.

In the form of chill shown in Figs. 4 and 5, the same general features of construction are present as indicated by the reference letters. The chill is made up, however, in this case of two parts, A, A adapted to be held together by connecting bolts n, and to be separated by removing the nuts m of said bolts. This separable chill may be employed when, for any reason, it is desirable after the casting operation to remove the chill from the fence post without slipping it up along and off the end of fence; but, for most purposes, I prefer the construction shown in Figs. 1 and 2.

In order to center the chill in proper position upon the flask I place in a suitable recess in the flask as indicated in Fig. 2 an intermediate plate B Whose central aperture is located directly above the casting cavity o, and which is provided with a rim or ridge to theinner wall of the collar.

within which the chill is adapted to fit. By this expedient the chill will always be seated with accuracy at exactly the desired place with relation to the flask, and each fence post therefore will be united with its base at exactly the same point, so that the uniformity of the work done with the chill and flask can be absolutely relied upon.

The operation of the invention as a whole will be apparent to those skilled in the art. The mold cavity for the fence base is first made in the flask in the usual manner. The plate B is then put in place, and the chill,

within which the fence post has just been clamped, is placed upon the plate. The molten metal is then poured through the pouring opening and fills the mold cavity and chill recess thereby being cast upon the lower end of the post. After the castingoperation the chill can be removed by loosening the set screws or knocking out the keys, as the case may be.

The construction shown in Figs. 7 and 8 illustrates a further means for removably holding or clamping the fence post within the chill, said means consisting of wedges f preferably conforming to the circular periphery of the post and guided within recesses in It will, of course, be understood that these wedges may be tightened upon the fence post by a slight blow of a mallet or the like sufficiently to hold the posts firmly during the casting operation, and after the completion of the cast may be withdrawn in any suitable manner.

By the expression integral with the chill as employed in the claims, I intend to cover broadly any construction wherein the collar forms a united structure with the main body portion of the chill, whether by being cast in one piece or otherwise united therewith. It will be understood that this is an essential feature of the device, as it enables the fence post to be clamped to the chill and held positively in fixed relationship thereto during the casting operation,thereby dispensing with the employment of an outside frame, as heretofore provided, for maintaining the post in a vertical position and for preventing it from rising during pouring.

Having thus described the invention, what I claim is- 1. A chill for flasks employed for casting bases to fence posts, said chill being provided with a chill recess above and communicating.

with the mold cavity of the flask, a collar integral with the chill, and having a perforation extending upwardly from the chill recess whereby the fence post may enter the chill recess, and releasable devices for clamping the fence posts directly to the collar whereby the fence-post may be clamped in fixed connection to the chill during the casting operation; substantially as described.

2. A chill for flasks employed for casting bases to fence posts, said chill being provided with a chill recessabove and communicating with the mold cavity of the flask, a collar integral with the chill, and having a perforation extending upwardly from the chill recess whereby the fence posts may enter the chill recess, and releasable devices for clamping the fence posts directly to the collar, said devices passing through the walls of the collar; substantially as described.

3. A chill for flasks employed for casting bases to fence posts, said chill being provided with a chill recess above and communicating with the mold cavity of the flask, a collar integral with the chill and having a perforation extending upwardly from the chill recess, whereby the fence posts may enter the chill recess, and adapted to bear upon the outer surface of the post; substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

ABRAHAM OORBETT.

Witnesses:

J os. M. MIDDLEKAUFF, WALTER H. LAKIN.

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