US981489A - Sad-iron pattern. - Google Patents

Description

Jan. 10,

2 SHEETS-SH U. G. SMITH. 4 SAD IRON PA TTBRN. APPLIOATION FILED JAN. 13, 1909. RENEWED 10.

. nted ate lNl/ENTOR BY 7 I ATTORNEYS U. G. SMITH.

SAD IRON PATTERN.

APPLICATION FILED JAN. 13, 1909. RENEWED DEC. 7. 1910.

Patented Jan. 10, 1911.

2 SHEETSSHBET 2.

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ULYSSES Gr. SMITH, OF LANSFORID, PENNSYLVANIA.

SAD-IRON PATTERN.

Specification of Letters Patent.

Patented Jan. 10, 1911.

Application filed January 13, 1909, Serial No. 472,059. Renewed December 7, 1910. Serial No. 596,174.

T all whom it may concern."

Be it known that I, ULYSSES G. SMITH, a citizen of the United States, and a resident of Lansford, in the county of Carbon and State of Pennsylvania, have invented a new and Improved Sad-Iron Pattern, of which the following is a full, clear, and exact description.

This invention relates to sad iron patterns.

One object of the invention is to provide a sad iron pattern by means of which the bridge which retains the removable handle upon the iron may be cast integrally with the body of the iron. Heretofore it has been customary to form this bridge of a separate piece of metal, make a special core for casting it, or burn in a piece of iron. These methods are objectionable, for the reason that it is difiicult to locate the bridges in identically the same position in each iron. By use of my invention, the bridge is always located the same in each iron.

A further object is to provide means whereby a plurality of iron bodies may be molded at once and the bridges thereof simultaneously withdrawn into the body of the pattern, in order to allow the pattern to be withdrawn from the sand of the mold.

The invention consists in the construction and combination of parts, to be more fully described hereinafter and particularly set forth in the claims.

Reference is to be had to the accompanying drawings forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views, and in which Figure 1 is a longitudinal vertical section, taken on the line 11 in Fig. 2; Fig. 2 is a transverse vertical section, taken on the line 2 2 in Fig. 1; Fig. 3 is a horizontal section, taken on the line 3-3 in Fig. 1; Fig. at is a plan view of the pattern as it appears in the mold in Fig. 1; and Fig. 5 is a sectional view, partly in elevation, showing a plurality of patterns mounted upon a support.

The pattern comprises a body portion 1, which is substantially oval in horizontal section, its ends being pointed, as is usual in sad iron patterns. A cavity 2 is formed on the lower surface of the pattern, as viewed in Figs. 1 and 2. This cavity receives the removable handle for the sad iron, as is well known. Said cavlty 18 to be spanned by a bridge-piece which is to be integrally cast with the body of the iron. In order to produce this bridge-piece, a slidable bridge a is arranged to span the cavity 2 and rest with one end in a socket 6 on one side of said cavity and its other end rest in a recess 8 formed in the body 1 of the pattern. The cross section of the bridge piece a may be semi-circular, as shown, although any other cross section may be utilized. The recess 8 will be of the same form as the bridge i. The length of the bridge 4.: is such that it may be received within the body 1 of the pattern and extend from the right-hand face of the cavity 2, as viewed in Fig. 2, to the opposite inner end of the recess 8, thus being entirely inclosed within the body 1 of the pattern, to enable the latter to be withdrawn from the sand.

Communicating with the recess 8 is a slot 10 extending from said recess to the upper surface of the body of the pattern. in order to slide the bridge 1, a tool 12 may be inserted through the slot 10 and forced into the bridge 41-, as clearly shown in Fig. 2.

In preparing the mold for the casting, the pattern 1 may be placed upon a board, with its upper surface, as viewed in Fig. 1, lowermost. The bridge 4L will span the cavity 2. Sand 15 is then rammed tightly about the pattern and the bridge to the proper depth for the flask which is used in forming the mold. The pattern and mold are then in verted to the position shown in Figs. 1 and 2. The bridge 4: is then withdrawn longitudinally into the body of the pattern by means of the tool 12. Thereupon the pattern may be withdrawn from the sand, leaving a hillock, which filled the cavity 2, and a passage through said hillock, which was previously filled by the bridge 4:. The top of the mold may be formed in any suitable manner. In pouring the metal, the mold may be inverted so that the narrowest portion of the pattern is uppermost, thus causing the scum and impurities to rise to the portion occupied by the bridge, leaving the best iron on the widestface, which is to be polished in the manufacture of the iron. This process produces an iron which requires a very slight amount of finishing in order to ob tain a smooth surface. It will be understood that the body 1 of the pattern may be made hollow, merely leaving sufficient material for the necessary strength of the pattern.

As shown in Fig. 5, each pattern body may be of similar construction to that set forth above, and all mounted upon a board or other support 22. Said board may be provided with dowel pins 24, which are adapted to be received in the sides of the mold. Said support 22 may therefore be utilized as a follow board in the preparation of the mold.

Each pattern body is provided with a bridge 26, connected to an arm 27 which depends from a rod 28 slidably mounted within the board 22. A lever 29 is pivoted at 30 to a bracket 31 fastened to the board 22, and said lever is also pivoted at 32 to the rod 28. Thus by moving the lever 29, the bridge 26 may be simultaneously moved into or out of the cavity 34 formed in each pattern. body 20. It will be understood that when the mold is prepared, the follow board 22 will be inverted from the position shown in Fig. 5, with the pattern bodies 20 uppermost. After the sand 86 has been firmly rammed about the pattern bodies and the bridges, the mold is again turned to the position shown in Fig. 5, whereupon the bridges 26 may be withdrawn into the body portions of the patterns. Thereupon, the follow board, to-

gether with the pattern bodies, may be withdrawn from the sand.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. The combination with a support and mold, of a plurality of sad iron patterns mounted on said support, a bridge slidably mounted in each pattern, and means for simultaneously moving each bridge into the body of the corresponding pattern while said pattern is embedded in the mold.

2. The combination with a follow board, of a: plurality of sad iron patterns mounted on said board, each having a cavity in one face, a bridge slidably mounted in each pattern and arranged to span the corresponding cavity while the sand of the mold is being rammed about the pattern, and means cooperating. with said bridges whereby they may be simultaneously withdrawn into the body of said pattern while still embedded in the sand of the mold.

In testimony whereof I- have signed my name to thisspecification in the presence of two subscribing witnesses.

ULYSSES G. SMITH.

Vitnesses I ELMER FAHRMAN, \VILLIE WENDTLAND.

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