US438821A

US438821A - Patrick o connor

Info

Publication number: US438821A
Authority: US
Publication date: 1890-10-21
Anticipated expiration: 1907-10-21

Description

(No Model.) 2 Sheets-Sheet 1. P OGONNOR MOLDING MACHINE.

No. 438,821. Patented Oct. 21, 1890.

(No Model.) 2 Sheets-Sheet 2. P OGONNOR MOLDING MACHINE.

No. 438,821. Patented Oct. 21, 1890;

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UNITED STATES PATENT OFFICE.

PATRICK OCONNOR, OF NEW HAVEN, CONNECTICUT, ASSIGNOR TO JAMES REYNOLDS, OF SAME PLACE.

MOLDING-MACHINE.

SPECIFICATION forming part of Letters Patent No. 438,821, dated October 21, 1890. Application filed April 1'7, 1890. Serial No. 348,380. (No model.)

To all whom it may concern.-

Be it known that I, PATRICK OOONNOR, a citizen of the United States, residing at New Haven, in the county of New Haven and State of Connecticut, have invented certain new and useful Improvements in Molding- Machines, of which the following is a specification.

My invention relates to improvements in molding-machines; and the object of my improvement is 'to enable a ring or rim and all inclosed parts to be molded with a machine.

In the accompanying drawings,Figure 1 is a sectional view on line 00 0c of Fig. 3, showing my attachment and enough of a molding-machine to show its connections therewith. Fig. 2is a like view of the same with the pattern withdrawn from the sand. Fig. 3 is a plan view of the table and pattern with the flask and sand removed. .Fig. t is a sectional view of the table and pattern-carrier on the line y y of Fig. 1. Fig. 5 is a sectional view similar to Fig. 1, illustrating a slight modification. Fig. 6 is a transverse section of a lock-case representing the work done with my moldingmachine. Fig. 7 is a reverse plan View of the central table or bed with a horizontal section of the pattern-carrier, and Fig. 8 is a vertical section thereof on line 2 z of 5.

The lock-case, Fig. 6, is provided with a flange 9 of considerable width or depth, which flange completely encircles the space inclosed by the case and forms the narrow side edges of the box or case. The solid back or broad side 10 is cast integral with this rim. The interior of the case is provided with studs or projections 11, of various forms, which are molded simultaneously with molding the rim. This illustrates the character of the work intended to be done with my machine; but the form of the rim, Whether round or angular, and that of the inclosed parts, is immaterial.

A designates a stationary bed or table of a molding-machine; B, a bar secured to the under side thereof, and C a central or inner table or presser-plate supported on said bar.

D designates the movable slide or plate of an ordinary molding-machine and to which the pattern holder or holders are attached.

The rimpattern holder E is a rectangular or box-like structure of the same general form as the rim 9, at the upper side of which the pattern-rim 9 is attached in any ordinary manner. The patterns and pattern-carriers 11 for the interior pieces are also attached to the movable slide D, so as to move therewith. The sides of the rim-pattern holder E are slotted, as at 12, Figs. 1, 2, and 4, to per mit the supporting-bar B to pass through them, while at the same time the rim-pattern holder may move up and down by said bar. Thus I am enabled to have the entire bed or table, inner table or presser-plate, and all of their connecting-supports wholly above the movable slide D.

The machine as illustrated is designed for molding only such parts of the lock-case, Fig. 6, as project from the broad side or back 10, the back being separately molded and the two parts of the flask united before casting, in the ordinary manner.

When the slide D is elevated, so much of the pattern as is intended to be molded projects above the top of the table or bed A, as shown in Fig. 1. The flask F is placed thereon and filled with sand and packed in the usual manner, after which the slide D is lowered, as illustrated in Fig. 2, so as to wholly withdraw the pattern from the sand. The board G may then be placed on the flask and the flask removed ready to repeat the operation. When the slide D is lowered, the bed or table Areceives the pressure of the sand and supports the same upon all parts outside of the rim-pattern 9 in the ordinary manner, while at the same time the center presserplate or table C presses upon and supports the sand that is inclosed by said rim-pattern, While not only the rim-pattern but all the interior pieces are being withdrawn from the mold.

Instead of supporting the center bed C by the bar B, it may be provided with equivalent supports for attaching to the principal tableas, for instance, four lugs 13, as shown in Figs. 5, 7, and 8and fastened by screws to the under side of the bed or table A. In such case the rim-pattern carrier E will be slotted for the passage of said lugs, as shown at 1.4, the operation being the same as thz t before described.

I claim as my invention- 5 In a molding-machine, the combination of the principal table or bed, a stationary inner bed supported thereon, the slide D, rim-pattern holder and pattern-carrier for the interior pieces, said pattern-holder and carrier both being secured to said slide and the in- 10 e; bed having perforations through which said carrier for the inferior pieces passes, substantially as described, and for the purpose specified.

A RICK OGONN R- Witnesses:

CHRISTOPHER FAGAN, JAMES J. KANE.