US71813A - Thomas stone - Google Patents

Description

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Be it known that I, THOMASv STONE, of .P1aineld, in the county of Hendricks, and State of Indiana, haveV invented anewand improved Brick-Machine; and that the following description, taken in connection with'the accompanying drawings, hereinafter referred to, forms a full and exact specification of the same, wherein I have set forth the nature and principles of my said improvements, by whichmy inventionmay be distinguished from all others of asimilar class, together with such parts as I claim and desire to have secured to me by `Letters Patent.

This invention relates to a new and improved machine for moulding and pressing bricks, andit consists of a novel arrangement of means for operating the moulds and pressing the clay therein, and also in a means for sanding the clay," all the parts beingso constructed and arranged that the clay is tempered, forcedV into the moulds, and pressed, andthe filled moulds discharged from the machine bythe rotation cfa single shaft, to wit, the mud-mill shaft. In the accompanyingV sheet of drawings- Figure 1 is a sideseotional view of my invention, taken in the line :c x, fig. 2.

Figure 2, a vertical central section of the same, taken in the line y y, iig. 1.

Similar letters4 of reference indicate like parts. I

y A represents a rectangular frame, which maybe constructed in any proper manner, to support the working parts, and B is afcase or box, of cylindrical or other form, which is secured on the frame A, and has a vertical shaft, C, passing centrally through it, and extending down to thc bottom of frame A, where it is stepped, as shown at a. To the upper end of the shaft C there is attached a'sweep, D, to which the horse or team is connected, and this shaft C is provided with radial arms b, lwhich serve to mix and temper the clay, the two lower arms 6X bx serving as pressers to force the clay dow-n through tubes E to thc moulds F. (See iig. 1.) Each -tube E is provided with a slide, c, by adjusting which the supply of clay to the moulds may be regulated as desired. On the shaft'G, directly underneath thfebottom d of the mud-mill, there is keyed a bevel-wheel, G, which gears into two similar wheels, H H, on the ends of the inner journals of two rollers, I I, the wheels H H being at opposite sides ofthe wheel G,'as show n in fig. 2. The rollers I I are fitted transversely in boxes J J, placed longitudinally in the frame A, one at each side thereof, and at each end of each roller there are toothed rims dx to gear into racks e on each side of the top of the moulds F. These moulds F work on frictionrollers K, which are placed in the bottoms of the boxes J J, and are designed to insure the free or easy moroment of the moulds F in their passage through tho boxes J. The friction-rollers are fitted-inframes L, which rest on4 India-rubber or other suitable springs, f, shown in both figures. In cach box J there isplaced an inclined chute, M. These chutes extend to the rollers I I, and just clear, or are not quite in contact with them, and they form thc bottoms of sand-boxes, by which the tops of the bricks orV compressed clay in the moulds are properly sanded. A v I Thc'clay, properly moistened, is thrown into the upper end of the mud-mill, and the shaft C, beingrotated by the horse or team which is attached to it, the clay is properly tempered by the action ofthe arms b, the lower arms bx forcing the clayV down the tubes E to the moulds F, in which it is compressed by the rollers I, motion to which is given by the gearing G H H from the uiufl-mill shaft C. The-moulds are fed through the boxes J Jby the toothed rims dx on the rollers I I, gearing into two racks e on the mouldsfthe filled moulds being discharged on opposite sides of the frame A, and the empty moulds p a man being at eachlside of the machine during the operation of thesame, take the filled ones therefrom. v

In consequence of having the roller-frames L resting on springs f, the 'moulds Al? are allowed to yield or give, should stones or any foreign substance enter them with the clay, and project above the level of their upper surfaces. By this simple provision the working parts of the machine are relieved of all strain to which they would otherwise be subjected i'n case of the contingency above alluded to occurring.

Having 'thus described my invention, I claim as new, andl desire to secure by Letters Patent- 1. The rollers I I operated from ,the mud-mill shaft C by means of the gearing G II H, in combination with the moulds F, operated from 4the rollers I I by the toothed rims dX and racks e, all arranged substantially as and for the' purpose' described.

2. The roller-frames L, carrying their moulds, when placed on springs f, nation with the rollers I I, substantially as andrfor the-purpose set forth.

The above specification of my invention signed by me, this 8th day of March, 18d?.

` THOMAS STONE.

when used in connection or combi Witnesses:

IsAncM; Snsnnnnn, ELI JOHNSON.

laced in said frame at opposite sides,V in order to insert empty moulds, and

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