US778861A - Mold for radiator-sections. - Google Patents

Description

No. 778,861. PATENTBD JAN. 3, 1905.

4 T. HOLLAND. MOLD FOR RADIATOR SECTIONS.

APPLICATION FILED SEPT. 28. 1904.

6 /4 j ci //1/// /vcs 1 ou E q E G a i 6 /-A-v /fl fir-myC5 UNTTED STATES Patented January 3, 1905.

PATENT OEEicE.

TIMOTHY HOLLAND, OF CINCINNATI, OHIO, ASSIGNOR TO BLANCHE I. HOLLAND, OF NEW YORK, N. Y.

NIOLD FOR RADIATOR-SECTIONS.

SPECIFICATION forming part of Letters Patent No. 778,861, dated January 3, 1905.

Application filed September 28, 1904. Serial No. 226.263.

T0 @ZZ whom it may concern:

Be it known that I, TIMOTHY HOLLAND, a citizen of the United States of America, and a resident of Cincinnati, county of Hamilton,

' State of Ohio, have invented certain new and useful Improvements in Molds for Radiator- Sections, of which the following is a specification.

The object of my invention is a moldin which the core is not liable to be broken by the molten metal and may be lreadily centered in the mold-section, which is manipulated easily1 in use and in which there is a simple and eliicient means for releasing the gases from the core. This object is attained by the means illustrated in the accompanying drawings, in whichw Figure l is a side elevation of a radiatorsection to be cast in the mold embodying my invention. Fig. Q is a centralsectional View of the core. Fig. 3 is a central sectional view of the iiask, mold-sections, and core after the latter has been centered and before the mold is turned to its vertical position to receive the molten metal. Fig. 4 is a detail end view of the table when the flask is in a vertical position. Fig. 5 is a sectional View of the radi-` ator section, taken upon line .fr .fr of Fig'. 1.

Referring to the parts, the nowel A and the cope A have their edges, top, and bottom planed perfectly level, the nowel to rest squarely upon plate or table A2 and the cope A to lit flatly against the top plate A2. The nowel and the cope have the customary brackets t a to receive the dowel-pins a2 a3 for centering' the flasks upon each other.

The plate or table A2 has at each of its ends centrally-located trunnions Z2 a2, which are adapted to fit into the journal-bearings in stationary standards B B. Plate A3 has at its ends perforations a a2, and plate A2 has perforations Z2 a, which stand opposite perforations a a7, respectively. The core-prints ce of the moldsC C extend to the plates A2 ,A3 and are made larger than the perforations Z2 to a9.

The core consists of three parallel branches Z CZ (Z2, lying in the same plane and having central channels Z2 Z4 (Z5, the branches being connected at their ends, as well'as the channels, the ends of the branch d having upon each side projections Z6 of a diameter equal to that of the core-prints o c, the ends oZG being of a length such that when the core is in position for molding the ends CZ bear flatly against the table A2 and the plate A2. These ends CZ6 have channels Z7 in communication with channels (Z3 Z2 Z2 and which register with perforations a to a. y

In use the plate A2 being brought to its horizontal position the nowel A is laid upon it. Then the core D is placed in positionwith its ends Z2 iittingthe core-prints o and bearing flatly against table A2. Then the cope A is placed over the core, the ends CZ registering with the core-prints c', and then the top plate A3 isvplaced on the cope with its perforations (Z2 a7 registering with the channels (Z7.

Then the parts are clamped'together by clamps E. Since the edges ofy the nowel and cope have been made perfectly true and the table A2 and plate A3 are likewise perfectly level, when the parts are clamped together thus it is seen that the ends ZG bearing against the plates A2 A3 cause the core D to be centered accurately' in the mold. Before the molten metal is poured into the flask the whole flask is turned, together with the plate A2, about the trunnions al' Z2 to a vertical position, such as shown in Fig. 4, and then the molten metal is poured in through the gate am. Itis seen that the tendency of the molten metal to cause the core to be carried upward, which tendency brings a bending strain upon the central part of the core,

is well resisted by the core in this position, because the parts Z cZ Z2 stand vertically above each other and have agreater resisting power than they would have were'they in a horizontal position such that one would not assist the other in resisting the bending strain.

The gases arising in the core are carried away quickly through the perforations Z).

What I claim is- 1. In a mold for hollow castings the combination ofa nowel and a cope each having straight edges, a flat table upon which the nowel rests, a flat plate to fit upon the cope, mold-sections having core-prints extending to the table and the plate and a core having ends to pass through the prints and bear against the table and the plate.

2. In a mold for hollow castings the combination of a nowel and a cope each having straight edges,a flat table upon which the nowel rests having perforations therein, a fiat plate to tit upon the cope, mold-sections having coreprints extending to the table and the plate and registering with the perforations in the plate, a core having ends to pass through the prints and bear against the table and the plate and having channels therethrough the ends of which register with the perforations in the plate.

3. In a mold for hollow castings the coinbination of a nowel and a cope each" having straight edges,a flat table upon which the nowel rests having trunnions at its ends, standards in which the trunnions are journaled, a flat plate to lit upon the cope, mold-sections having core-prints extending to the table and the plate and a core having vends to pass`v through the prints and bear against the table and the plate, the liasl having a gate upon its side to receive metal in its vertical position.

4. In a mold for hollow castings the combination of a nowel and a cope each having straight edges` a table to support the nowel having perforations at its ends, a plate to lit upon the cope having perforations to corne opposite the perforations in the table, moldsections having core-prints extending to the table and the plate respectively to register with the perforations therein, and a core having projections extending through the prints and bearing against the table and the plate to center the core in the ask, and channels running through the core and registering with the perforations in the table andthe plate.

TIMOTHY HOLLAND. Witnesses:

JOHN A. HOLLAND, WALTER F. MURRAY.

SOJ

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