US511265A - cornelison - Google Patents

Description

' (No Model.) V 2 Sheets-Sheet 1. J. H. GORNE-LISON. APPARATUS FOR CASTING. N0. 511265. Patented Dec. 19, 1893.

A i- Al fl %47ZM dmm4 uuuuuuuuuuuu c (No Model.) 2 Sheets-Sheet 2.

ir. H .'O0RNBLISON. A APPARATUS FOR GA'STING; No. 511,265.

m5 mmcmi umos uuuuuuuuuuuu -r.

UNITED STATES PATENT tries.

JOHN H. COREELISON, OF ST. LOUIS, MISSOURI, ASSIGNOR TO THE HOKE ENGRAVING PLATE COMPANY, OF SAME PLACE.

APPARATUS FOR CASTING.

SPECIFICATION forming part of Letters Patent No. 511,265, dated December 19, 1893.

Application filed August- 28, 1892. Serial No. 244,211. (No model.)

To (035 whom may concern:

Be it known that I, JOHN H. Oonunmson, of St. Louis, Missouri, have made a new and useful Improvement in Casting Apparatus, of which the following is a full, clear, and exact description.

Theimprovement relates mainly, but not exclusively, to apparatus used in the production of stereotypes, and more particularly to that class thereof in which the type is formed from an engraved plate, and it consists mainly in the provision whereby the principal parts of the apparatus can be readily manipulated and variously adjusted and combined to euable and facilitate the carrying out of the casting-operation, all substantially as is heremafter set forth and claimed, aided by the annexed drawings, making part of this specification, in which-- Figure 1 is an edge elevation of the lower plate of the improved apparatus; Fig. 2 the inner face elevation of the same; Fig. 3 a view representing either the lower or the upper plate of the apparatus resting, with its inner face turned thereto, upon any heating surface as preparatory to the casting-operat1on Fig. 4 an edge elevation of the lower plate having the bar, which constitutes the inner or lower end of the mold during the casting operation, attached, and the plate beng supported, by means of its handle, in an inclined position; Figs. 5 and 6 views of the end-bar shown in Fig. i;- Fig. 7 an edge elevation of the apparatus, the near gage-bar broken away; Fig. 8 an elevation of'thelower plate of the apparatus, with the plate, which, when engraved forms the matrix of the type, the gage-bars, and the end-bar in position thereon; Fig. 9 a side view of one of the gagebars; Fig. 10 an edge view of the apparatus clamped and ready for the casting operation; Flg. 11 a top view of the same.

The same letters of reference denote the same parts.

The leading features of the apparatus, in its most desirable form, are, what may be termed, the lower plate A, the upper plate B, two gage-bars O, O, and an end bar D, together with suitable means, such as the clamps E, for binding the mentioned parts so eurely together. The plates A and B in width and height are sufficient to constitute the sides of the apparatus, their inner faces are smooth, and they are substantially similar saving in respect to the connection with the end-bar hereinafter more fully explained. The leading feature however of said plates is the handles a, b, with which they are respectively provided. They serve not only as a means by which the plates can be readily manipulated, either singly or jointly, and as a part or parts detached from the remainder of the apparatus, or by which the apparatus as a whole can be handled and shifted, but also as auxiliary supports for their respective plates when detached from the apparatus, or from each other and arranged with the inner face thereof upturned, or for the entire apparatus during the casting operation, and at other times. To these ends the handle projects from the back of the plate, and preferably from the center thereof, substantially as shown, and its uses are fairly indicated in the various positions of the plates and apparatus shown in the drawings, and theywill be more fully hereinafter described in connection with the operationof the apparatus. The inner face of the plates need not be flat throughout its length, but, at the upper end thereof, the plates may be beveled, substantially as shown at a, b, thereby to provide, when the plates are united in the apparatus, a larger inletfor admitting the metal to be cast. A sufficient inlet however is obtained when only the bottom plate is beveled, and it is not essential that either plate shall be beveled. The end-bar D, which forms the bottom of the apparatus, is preferably detachable from the other parts of the apparatus, and the preferable mode of supporting it in position in the apparatus is as indicated in Fig. 4:; pins, d, (1, project from the end bar, at one side thereof, which enter perforations a o in the lower plate A. The end-bar serves not only to properly space the upper and lower plates apart, but also as a means by which the upper plate can be readily adjusted and held longitudinally with reference to the lower plate, the end-bar, for this last named purpose, having a shoulder d,against which the lower end b of the upper plate abuts when that plate isin position. The shoulder,

d, may be integral with the end-bar, but I prefer to make it in the form of a separate piece, such as the strip shown, and to attach it to the end -bar, to project therefrom as shown, say by means of the screws (1 The end-bar also preferably has the offset (1 The gage-bars O, O, are of the ordinary shape, be g of suitable length and thickness, substantially as shown, to constitute the edge walls of the apparatus. They also each may have an olfset c, at the lower inner corner of the bar, and an extension c',at the lowerend of the bar, substantially as shown.

The operation of the apparatus is as follows: It is well understood a casting box should be suitably heated previous to the casting in order that the metal when cast shall be kept from chilling prematurely. This is quite desirably provided for by means of the plates and other partsbeing constructed as described. Each plate, by reason of its described shape, can be arranged upon,

. in, or against any suitable heating agent, and by means of its handle, the plate can be easily managed. Said heating agent may be any surface, part, or place, adapted to be heated, or having heat, and suited for receiving and heating the plate. One such surface is indicated at F Fig. 3. After the plates, as well as the other parts, are thus properly heated they are assembled, together with the engraving plate G, or whatever is to form the matrix of the type, as follows: The lower plate is upturned and supported by its handle, substantially as is indicated in Fig. 4;

the end-bar, by dropping its pins into the hole in the lower plate is placed in position upon the lower plate; the engraving plate, suitably engraved (the engraving not shown) is then placed in position, its lower edge coming beneath or entering the ofiset, CF, in the end-bar, and the back of the engraving plate resting upon the inner face of the lower plate; the gage bars are then placed in position, by arranging them upon the inner face of the lower plate, with their extensions 0', o, in the offset (i in the end-bar, and with the side edges of the engraving plate in their respect ive ofisets, c, c, all as indicated substantially in Fig. 8; that is the gage-bars are suitably spaced apart from each other to suit the width of the engraving plate; the mold is now completed by applying the upper plate B, to the parts already described, and in doing this the lower end of the upper plate bears againstthe shoulder upon the end bar and the inner face of the upperplate comes against the endbar and the gage-bars, and, although in some instances, as when the weight of the parts of the apparatus is snfficient to hold them prop-.

erly together, any auxiliary binding device or means may be omitted, means such as the clamps, E, are usually applied to bind the two plates A and B, and the interposed gagebars, end-bar, and engraving plate, tightly together, and sufficient to prevent the escape of metal during the casting operation at the joints between the parts of the mold. The mode of applying the clamps is indicated in Figs. 10 and 11. The clamps shown are of a familiar type and hence do not require further description, saving that they may be utilized not only for clamping the mold but also as a means for supporting the apparatus at this or that inclination, and if desired, at a different inclination from that at which it is held by means of one of the plate handles.

In Fig. 7 the apparatusis shown supported at a suitable angle for casting, by allowing the handle, a, of the lower plate A, to bear upon the supporting surface H.

In Fig. 10 thelowerclamp,or clamps (when clamps are applied at both corners of the lower end of the apparatus), are brought into use as a substitute for the plate handle, substantially as shown. The clamp is arranged well down toward the lower end of the apparatus, and the projecting end, e, of the bar, of the clamp by coming in contact with the surface H, serves to hold the apparatus in a more upright position than that of Fig. 7, a position sometimes desirable in order to increase the pressure exerted by the fluid metal within the mold. This mode of upholding the apparatus can be resorted to irrespective of the handles upon the plates.

I claim 1. The combination, in acasting apparatus, of the lower plate A, recessed at a the shouldered end bar D, recessed at C1 and having pins d, the gage bars, the upper plate and the clamps, said lower and upper plates respectively beveled at a and b, as and for the purposes set forth.

2. The combination in a casting apparatus of the lower recessed plate, the upper plate, the end bar shouldered and offset and having pins d and the gage bars between the plates, each of said plates having handles and both of said plates held together by a clamp, sub stantially as described.

WVitness my hand this 21st day of July, 1892.

JOHN H. CORNELISON.

\Vitnesses:

O. D. MOODY, A. BoNvILLE.

Images