US1176771A - Molding-flask. - Google Patents

Description

G. A. MILLER.

MOLDING FLASK. APPLICATION FILED DEC. 16. um.

n0 1 9 1 H 00 2M 4 n h fin sum ma s n e t a P lull I I I l I G. A. MILLER.

MOLDING FLASK. APPLICATION FILED DEC. 16. 1914.

1 l 763, '77 l Patented Mar. 28, 1916.

2 SHEETS-SHEET 2.

wwmeowo proper register during bracket 7 is secured to sTEs GEORGE A. MILLER, OF ERIE, PENNSYLVANIA, ASSIGNOB TO GERMER STOVE COMPANY,

OF ERIE, PENNSYLVANIA,

A CORPORATION OF PENNSYLVANIA.

, MoLmne-rLAsK Specification of Letters Patent.

Patented Mar. 28, 1916.

Application filed December 16, 1914. Serial No. 877,506.

To all whom it may concern:

Be it known that I, GEORGE A. MILLER, a citizen of the United States, residing at Erie, in the county of Erie and State of Pennsylvania, have invented newand useful Improvements in Molding-Flasks, of which the following is' a specification.

This invention relates to molding flasks and consists in certain improvements in the construction thereof as will be hereinafter fully described and pointed out in the claims.

More particularly this invention relates to a hinge construction or means of connection between the drag and cope flasks, together with means for inserting a match plate in such connection. Where match plates are used, it is desirable to swing up the cope's'o that the facing material may be put in place, and the part swung down to finish the mold. It is, of course, necessary that both the flasks and the match plate should be maintained in the diflerent molding operations, and after the removal of the match plate that the parts of the mold be brought together in proper register;

The invention is illustrated in the accompanying drawings as follows .Figure 1 shows a side elevation of the hinge with a fragment of the flask in sec-' tion, the match plate being in place. Fig. 2 shows a view of the match plate showing the hinge construction thereof. Fig. 3 a plan view of'the hinge bracket on the drag. Fig. 4 a view similar to Fig. 1 with the match plate removed. Fig. 5 a perspective view of the flask in open position. Fig. 6 a rear view of the hinge with the flask closed. 1 marks the match plate, 2 the drag flask and 3 the cope flask. The hinge bracket 4 is secured to the drag. It has the bifurcated arm 5 extending from it in the sides of which are the vertical slots 6. A hinge the cope flask. It has the extension 8 adapted to form a sliding fit a between the sides of the bifurcated arm 5.

It also has the pin 9 which forms a sliding The bracket 4 has the flat extension 10 against which the shoulders 11 on the hinge bracket 7 rest when the cope is swung open, the flat portion 10 forming a stop acting in connection with the shoulder 11 to limit the action of the hinge. The bracket 4 has a hinge rib 12. This rib is V-shaped in cross section and has a concave surface. The

forming ahinge pintle fit with the slots 6.

' hinge piece 14 of the match plate 1 has the annular V-shaped grooves 13 which form a joint with the ribs 12. Itwill be noted that these ribs while giving freedom to the swinging motion of the match plate control its position with relation to the flask both in a di rection in line with the axis of its pivot as well as in a direction at right angles to the axis so that it will'come back into register with the mold and the diflerent parts when it is moved or swung on the hinge. The bracket 7 is cut away at 15 to permit the insertion of the hinge piece 14 without disturbing the hinge formed by the pintle 9 and slot 6. The head piece 14 is secured to an irregularly-shaped plate 16 which is secured in the match plate 1.

In Fig. 1 a fragment of'the flask is shown with a match plate in place. It will be observed that the pins 9 are in the upper part of the slot 6 allowing the separation of the flask incident to the insertion of the match plate. At the same time, the telescopic con nection formedby the slots and pins maintains the flasks in exact alinement. Ordinarily the cope flask will be thrown back for surfacing the mold, but where the pattern is of such nature as to require the vertical lifting of the flask, the telescopic connection formed by the pins and slots permits such lifting and at the same time the pins maintain the flasks in register. The match plate can also be swung up on the hinge formed by the ribs12 and grooves 13. If the pattern is such as to require a vertical lifting, the joint permits this. The rear of the rib 12 is preferably extended at 12 so as to guide the pattern in its vertical movement. After the removal of the match plate, the pins 9 are dropped to the bottom of the slots 6. It will be noted that the axis of the hinge formed by the grooves 13 and hinge piece 14 is at the center of the match plate. In consequence the hinge piece may be attached to the match plate without reference to which is the top surface and the match plate may be used either side up as the pattern thereon may make the more advantageous. These hold the flasks in register and they may be closed as clearly shown in Fig. 4.

What I claim as new is 1. In a flask, the combination of a drag flask; a cope flask; and a connection between the flasks comprising a hinge bracket on one of the flasks having a bifurcated arm, the sides of said arm having ing fit between the sides of the bifurcated arm, said portion having pins extending therefrom into the vertical slots and forming asliding fit with said slots and forming a hinge joint between the flasks permitting a vertical relative movement between the flasks, said portion having a surface adapted to engage the flat supports on the bifurcated arm to support the upper flask in open position. 1 2. In a flask, the combination of a drag flask; a cope flask; and a connection between the flasks comprising a hinge bracket on one flask, a hinge bracket on the other flask, a hinge connection between said brackets, said hinge connection having vertical play, a joint surface on one of the brackets for the match plate, and a joint piece on the match plate forming a hinge with said joint surface on the bracket, the axis of the Copies of this patent maybe obtained for five cents each,

7 Washington, D. 0.

hingebeing centrally located With relation to the match plate. 7 w

3. In a flask, the combination -of"a drag flask; a cope flaskya connection between the flasks comprising a hinge bracket on one flask, a hinge bracket on the other flask,

a hinge connection between said brackets having vertical freedom of movement, a joint surface on one. of the brackets, said joint surface having a vertical extension, and a match plate having a joint surface corresponding to the joint surface on the bracket and adapted to follow the vertical extension on the joint surface on the bracket in guiding the match when moved vertically. j

In testimony whereof I have hereunto set my hand in the presenceof two subscribing witnesses. 1

GEORGE AJ-ivIILLER.

itnesses H. (J. LoRD, B. M. HARTMAN.

by addressing the "Commissioner of Patents,

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