US1339133A - Combined mold-pouring and weighting unit - Google Patents

Description

C. K. PRINCE.

COMBINED MOLD POURING AND WEIGHTING UNIT.

APPLICATION FILED AUG-9 1919.

INVENTOR, Clarence A. fi't'nce,

Patented May 4, I920.

ATTORNEY.

CLARENCE K. PRINCE, OF WESTFIELD, MASSACHUSETTS.

COMBINED MOLD-POURING- AND WEIGI-ITING UNIT.

Specification of Letters Patent.

Patented May 4, 192i) Application filed August t), 1919. Serial No. 316,467.

To all whom it may concern j Be it known that I, CLARENCE K. PRINCE, a citizen of the United States of America, residing at WVestfield, in the county of Hampden and Commonwealth of Massachusetts, have invented certain new and useful Improvements in Combined Mold-Pouring and Weighting Units, of which the following is a specification.

This invention relates to improvements in making metal castings. An object of the invention is to provide a device for quickly and effectively weighting the flask when the same is being poured usually located on a suitable platform. Heretofore it has been the common practice, in foundry operations, for the workmen to place, by hand, the usual weights on the flask. These operations are not only slow, but are expensive. The present invention is designed to overcome these objections by providing an apparatus for quickly lowering a weight onto the flask that can be readily operated by only one workman.

The present invention forms a part of an apparatus that is shown and described in an application filed by me August 9, 1919, Serial No. 316,468, for a process of and apparatus for carrying out all of the op erations or steps from the point, or place, where the molds are made until the empty molding frames, the cope and nowel, are returned to the molding position. Said apparatus and process comprises in general, an apparatus for molding and transferring said molds or flasks, onto a suitable platform, preferably one composed of rollers; an apparatus for weighting and pouring, an appa rates for dumping the finished castings, and finally returning the empty molds to the molding positions. The present invention has to do with that part of the apparatus which relates to the weighting and pouring step when located on the platform having rollers.

In general the present invention comprises a suitable support or if desired, track-way having depending therefrom'a plate which engages the flask, which plate forms the weight proper; links connected to this plate, and an operating lever connected to the links, which lever is pivotally supported on the fixed support or track-way whereby the workman can readily raise and lower the weight onto and from the flask. This plate is provided with an opening which registers with the sprue in the flask, whereby when the flask is poured the molten metal passes through the opening in the plate and into the mold. I

'One of the objects of the present invention is to so construct the weighting plate that one end of the same will engage the flask first and from this end the plate is gradually applied to the upper surface of the flask.

With these, and other objects in view,

reference is made to the drawings and ac- I operating handle in different positions, its

support and connecting links between the handle and the plate.

Referring to the drawings in detail, 1 designates the roller or other platform on which the usual bottom board .2 and its runners 3 are placed. This platform is of the gravity runway type asshown and described in my coepending application above referred to, Serial No. 316,468, filed August 9, 1919. The cope and nowel of the flask are indicated at a and 5, respectively. 6 designates the weight proper which engages the top or upper edgeof the cope 4-. This weight is formed with a pouring opening 7 which registers with the sprue 8 in the flask. Connected to the ends of the weight 6 are links 9 and 10 by means of the pins 11 and 12; these links are joined together at their upper ends by means of the common rod or pin 13 and this pin is connected to the link 14 which in turnis connected to the operating lever 15 by means of the pin 16 which is pivotally supported on the supporting structure 17 at 18. The operating lever or handle 15 as shown, extends downward within easy reach of the operator. Any suitable device as a hook 19 is provided for holding the plate 6 elevated.

It should be stated and noticed that the links 9 and 10 are of equal length, and

forming with the plate 6 an equilateral triangle, whereby when the weighting plate is lowered the end 6, to which the links 9 are connected, will strike the upper edge of the cope first on account of the inclined position of the bottom boardand then as the operating lever 15 is raised it allows the weight to gradually settle onto the flask, the pressure will thus be gradually applied to the flask thus forcing out any confined air that may be retained between the plate and the flask. This construction constitutes a pendant device which permits the weighting plate to readily assume an inclined position. The lowered position of the plate is indicated by the dotted lines 6 in Fig. 2. After the flask is poured the weight is lifted and the flask moved along the platform to that part of the apparatus where the flasks are emptied. A new flask is then moved into position under the weighting and pouring apparatus and the same operations repeated.

It is to be understood that the present invention is not in any way limited to the use of a single weighting and pouring apparatus as shown, but a plurality may, if desired, be placed end to end forming a series along and over the platform 1 whereby several flasks may be simultaneously weighted and poured. It is to be understood that the apparatus is not limited to use with an inclined bottom board as it is equally applicable for use when the bottom board is in a horizontal position.

What I claim is: 4

1. In a combined apparatus for weighting and pouring flasks, the combination, of a weighting plate to engage the flask, links connected'thereto, and operating device for the links, a bottom board for the flask and means for supporting the bottom board and flask on a gravity runway.

2. A weight and pouring device for flasks comprising, in combination, a weight proper, means for supporting the same in a pendant manner to permit one end of the weight to engage the flask before the other should the flask be arranged in an inclined position and means for movably supporting the flasks on a gravity runway during the weighting and pouring operations.

3. A weight and pouring device comprising, in combination, a plate forming the weight proper inclined, links connected thereto, a supporting structure, an operating lever pivotally connected to said structure and to said links whereby the plate may be raised and lowered as described.

4:. In a weighting device, .the combination, of a plate having a pouring opening therethrough, a supporting structure, connecting means between the structure and the plate, said means being designed to permit the plate to assume an inclined position.

5. In a combined weight and pouring de vice for flasks, the combination, of a weight mg plate, supporting links therefor connected thereto to permit the plate to engage the flasks at one of its edges first andthen gradually engage the whole of its upper sur-.

molders flasks comprising a weighting plate to engage the cope, links pivotally connected to the plate at their lower ends, their upper ends being united by means of a common pin, or the like, to form substantially an equilateral triangle which includes the links and the portion of the plate between the lower ends of the links, a single link con nected to the common pin and an ope 'ating lever for raising and lowering the .plate connected to the other end of the last named link, whereby the links and plate will have a free or pendant action, said plate having an opening for pouring the metal into the molds, as described.

7. In a combined apparatus for weighting and pouring flasks in foundry operations, the combination, of a weighting plate to engage the flasks, means connected to the CLARENCE K. PRINCE.

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