US1211570A - Mold-jacket. - Google Patents

Description

J. C. L G. L. GEORGE.

MOLD JACKET. APPLICATION FILED sEPT.29. 191s.

1,2l 19570, Patented Jan. 9, 1917.

Inventory Attorneys @bili srarns rarer JAMES C, GEORGE AND GABRIEL L. GEORGE, F BRISTOL, VIRGXNIA.

MOLD-JACKET.

Application filed September' 29, 1916.

To all 107mm t may concern.'

Be it known that we, JAMES C. GEORGE and meinst L. GEORGE, citizens of vthe United States, residing at Bristol, in the county oit l/Vashington, State of Virginia, have invented a new and useful Mold- Jacket, oi which the following is a` specification. v

The device forming the subject matter of this application is a jacket adapted tol hold a mold of the kind used in metal casting operations.

The invention aims to provide a latch which is so constructed that it will serve as a means for opening and closing the jacket, and serve as a means for holding the acket in a closed or open position, the construction being such that the acket may be opened up to enable it to slip over the mold without disturbing or crushing the mold in any way.

it is within the province of the disclosure to improve generally and to enhance the utility of devices of that type to which the present invention appertains.

With the above and other objects in view which will appear as the description proceeds, the invention resides in the combination and arrangement of parts and in the details of construction hereinafter described and claimed, it being understood that changes in the precise embodiment of the invention herein disclosed can be made within the scope et what is claimed, without departing from the spirit of the invention.

In the accompanying drawings Figure 1 shows in top plan, a mold jacket constructed in accordance with the present invention, parts being broken away; Fig. 2 is an end elevation of the structure shown in Fig. 1; and Fig. 3 is a fragmental side elevation illustrating the latch mechanism and cooperating parts.

The mold acket forming the subject matter of this application preferably is fashioned from metal throughout, saving as otherwise specified hereinafter, and comprises ends 1 and 2 and sides 3 and 4. The end 2 has an outwardly projecting rectangularly disposed flange 5 united by securing elements 6 with the side 3. Located in the angle deined by the iiange 5 and the end 2 is a handle 7 which acts as a brace for the flange 5. The handle 'Z preferably is not made of metal, but is made of some sub- Speccation of Letters Patent.

Patented Jan. 9, i917.

Serial No. 122,916.

stance which will not conduct heat readily, the purpose of the handle being to permit the mold jacket to be manipulated without inconvenience to the operator, due to heat. The lend 1 has an outwardly projecting lia-nge 8 like the flange 5, the iiange 8 being united by means of securing elements 9 with one end of the side wall 4. rllhe flanges 5 and 8 are located at diagonally opposite corners of the jacket. A handle 12, like the handle 7, coperates with the ange 8 and the end 1.

One extremity oi the end wall 1 and the adjacent extremity of the end wall 3 are provided with hinge knuckles 10 united by pivot elements 11. It will now be seen that the jacket herein disclosed comprises two rectangular parts, one of which is formed of the members 1 and 4, the other of which is formed oi' the members 2 and 3, these rectangular parts being united by the hinge constructions 10-11. ln one end of the side wall 4 there is formed a notch or seat 14 receiving a lug projecting from the end 2. Because the lug 15 is received in the notch 14, a vertical movement between the free ends of the end wall 2 and the side wall 4 cannot take place. rlhe lug 15, however, is long enough so that the side 4 can be swung outwardly in a horizontal direction away from the end 2, without causing the lug 15 to lea-ve the notch 14. rihus, a relative vertical movement between the parts 2 and 4 cannot take place, even though the jacket is slightly opened at one corner. i

The side 4 is equipped with a projecting keeper 16 including an upstanding arm 17. The inner edge oi' the arm 17 inclines downwardly and inwardly as shown at 18. The rear edge oi the arm 17 is downwardly inclined as shown at 27.

Mounted upon or formed integrally with the end 2 `is an arcuate track 19 equipped at its upper end with a stop 20. rlhe end 2 may carry a spacing boss ,21 through which is passed a pivot element 22 supporting a washer 23. A latch lever 24 is shown, and the same has an enlarged bearing portion mounted to swing on the pivot element 22 between the washer 23 and the spacing boss 21. The latch lever 24 includes a depending bill 26, the inner edge of which is shown at 30. Projecting from the bearing portion 25 of the latch lever and disposed approximately at right angles to the lower end of the bill 26 is a inger 28. The lever 24 preferably is offset where its handle portion joins the bearing part 25, as indicated at 29.

Let it be supposed that the right hand end of the latch lever 24 is lowered, as shown in Fig. 2. Then the bill 26 of the lever 24 eX- tends across the keeper 16, and the side 4 is prevented from swinging outwardly with respect to the end 2. Owing to the fact that the inner edge of the arm 17 is inclined as shown at 18, the lower portion of the edge 18 engages the bill 26 of the latch lever 24 when the right hand end of the latch lever is lowered, and consequently the side 4 cannot move endwise when the latch lever is lowered. When the left hand end of the latch lever 24 is pushed downwardly and when the right hand end of the latch lever is raised, the extremity of the finger 28 bears against theinclined surface 27 of the arm 17 of the keeper 16, and thus the side 4 is swung outwardly with respect to the end 2, thus effecting an opening of the jacket. The constituent parts of the jacket, during this operation, swing with the pivot elements 11 as centers. Because the edge 18 of the arm 17 is inclined, as clearly shown in Fig. 8, the wall 4 is permitted to swing outwardly, with the pivot elements 11 as a center, when the latch lever 24 is raised at its right hand end, sufficient play thus being afforded between the upper extremity of the arm 17 and the bill 26 of the latch lever. TWhen the right hand end of the latch lever 24 is raised sufliciently, the bill 26 engages the stop 20. It is thus impossible to disengage the bill 26 entirely from the keeper 16, and to d isengage the iinger 28 completely from the rear surface 27 of the arm 17. The jacket can be opened slightly, therefore, but a means, represented by the stop 20, is provided whereby a complete disengagement of the side 4 from the end 2 is prevented. rlhe spacing boss 21 and the track 19 coperate to hold the latch lever 24 apart from the end 2, thereby reducing friction.

When a jacket constructed in accordance with the present invention is used, a larger casting can be made than would be possible otherwise, because the pattern can come close to the outer edge of the flask, this operation being possible because the jacket herein disclosed may be opened thereby avoiding any danger of crushing or breaking down the mold when the jacket is put into place or removed. Owing to the specific way in which the movable parts of the jacket may be manipulated by means of the latch lever 24, a considerable amount of time can be saved.

The present invention has been embodied in the form of a vertical walled jacket, but it is obvious that it may be embodied in a jacket the walls of which are inclined. This Vis a detail lying well within the scope of a skilled mechanic and unworthy of specific delineation.

Having thus described the invention, what is claimed is 1. A mold jacket comprising end walls and side walls the end walls being provided at two diagonally opposite corners of the jacket with outwardly projecting flanges; handles located in the angles defined by the flanges and the side walls and constituting braces for the flanges; securing elements uniting the flanges with the extremities of the side walls; a hinge uniting one side wall with one end wall at one of the remaining corners of the jacket; and a latch uniting the other end wall with the other side wall at the fourth'corner of the jacket.

2. A mold jacket comprising an end wall; a side wall having a keeper including an upstanding arm; a latch fulcrumed on the end wall and including a depending bill engaged behind the arm and coacting with the keeper' to draw the side wall toward the end wall when the latch is lowered, the latch including a 'linger disposed at an angle to the bill, and coacting with the inner face of the arm to move the side wall away from the end wall when the latch is raised.

3. A mold jacket comprising an end wall; a side wall having a keeper including an upstanding arm; a latch fulcrumed on the end wall and including a depending bill engaged behind the arm and coacting with the keeper to draw the side wall toward the end wall when the latch is lowered, the latch including a finger disposed at an angle to the bill and coacting with the inner edge of the arm to move the side wall away from the end wall when the latch is raised; and a stop on the end wall and cooperating with the latch to prevent a disengagement ofthe latch from the keeper when the latch is raised.

ln testimony that we claim the foregoing as our own, we have hereto affixed our signatures in the presence of two witnesses.

JAMES C. GEORGE. GABRIEL L. GEORGE.

l/Vitnesses:

J. K. BURNS, H. DoRro'r.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents,

Washington,D C.

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