US472334A - Brick-mold sander - Google Patents

Description

(No Model.) 4 SheetsSheet 1.

G; (DARNELL.

BRICK MOLD SANDER.

No. 472,334. Patented Apr. 5. 1892.

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4 Sheets-Sheet 2.-

(No'ModeL) G. OARNELL.

k BRICK MOLD SANDER.

.No. 472,334. Patented Apr. 5, 1892.

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(No Model.) 4 Sheets-Sheet 3.

G. GARNELL.

BRIGK MOLD SANDER. No. 472,334. Patented Apr. 5, 1892.

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(No Model.) 4 Sheets-Sheet 4.

G. CARNELL.

'BRIOK MOLD SANDER.

No. 472,334. Patented Apr. 5, 1892.

. view. Fig. 5 is a side elevation showing the UNITED STATES PATENT FFICE.

GEORGE CARNELL, OF PHILADELPHIA, PENNSYLVANIA.

BRICK-MOLD SANDER.

SPEGIFICA'IIQN forming part of Letters Patent No. 472,334, dated April 5, 1892.

Application filed May 19, 1891. Serial No. 393,369. (No model.)

To all whom it may concern:

Be it known that I, GEORGE OARNELL, a citizen of the United States of America, residing at Philadelphia, in the county of Philadelphia and State of Pennsylvania, have invented certain new and useful Improvements in Machines for Sanding MoldBoxes, of which the following is a specification.

The object of my invention is to provide for sanding of molds used in the manufacture of brick, and I aim to provide such a construction of apparatus for this purpose as will enable me to perform the work automatically to a large extent.

My invention includes a hopper which is vertically movable, so as to allow for the passage beneath it of molds of varying heights, the said molds being placed in rear of said hopper with means for pushing them under the hopper and out at the other side, the molds then being raised automatically and the sand contained therein dumped into the hopper.

In the accompanying drawings, Figure 1 represents a side elevation of my improved machine. Fig. 2 is a rear view. Fig. 3 is a section on line x 00 of Fig. 2. Fig. 4 is a plan mechanism forraising and dumping the molds, and Fig. 6 isaplan view of Fig. 5. Figs. 7 and 8 show the parts for elevating and dumping the molds.

In the figures ordinary frame-work supporting the working parts is shown at A. This frame-work supports a hopper B, which extends across from one side to the other, being supported at each end by brackets bolted to the frame-work, as at a. These brackets have slotted upper ends, which receive projections 12, extending from the ends of the hopper, and as the slots in the brackets are open at the top the hopper may be moved upward to increase the space between the plane of its lower edge and the surface of the frame-work when molds of different heights are used in connection therewith.

As shown in Fig. 3, the molds are adapted to be piled one upon another in rear of the hopper, being held in proper position by means of the uprights 0, one being provided at each end and two at the rear. The boxes are placed in rear of the hopper empty, and are then moved in succession under the hopper, being filled with sand in the passage, and in order to thus move them I provide in rear of. the position of the empty molds between the rear uprights a shaft 01, carrying a roller c. This shaft is secured by means of bolts and nuts to arms ff, extending from a rotating shaft g, which is provided with a band-wheel and a driving-gear. The shaft cl is secured to its supporting-arms at an angle thereto, as shown in Fig. 1, and in the rotation of the main shaft the box which is at the bottom of the empty set is moved along beneath the hopper, moving the one before it out from under the hopper, as shown in Fig. 5. After the box which is filled with sand passes to the front of the hopper and from beneath it, it must be elevated and its contents dumped, leaving it in proper sanded condition. I provide for this operation in a very simple manner. A supportingarm is secured to each one of the brackets at the end of the table, which serves to support the hopper, and from these supporting-arms a shaft 2' extends, this shaft carrying a bellcrank lever It at one end having a long and a short arm and at the other end simplya long arm. The long arm of each lever is provided with a plate m, which engages the mold-box at each end, the long arms of the levers being in the position shown in dotted lines when the filled box is pushed out from beneath the hopper. As the short arm of the lever has a pitman connection to the crank-shaft Z the rotary movement of said shaft has the effect to lift the long arms of the lever to the position shown in full lines in Fig. 5, and with them the mold-box, and in the further movement of the crank-shaft the short arms are drawn down, the long arms still further lifted, and the boxes are dumped by means ofa rod 19, extending between studs on the shaft 91 and the supports for the boxes. These supports are, as shown in Figs. 7 and 8, yokes 0, having a projecting bearing at the rear, which are held in boxes on the end of the long arms, being prevented from displacement by collars n, held in place by set-screws. Rods p extend between the studs on the shaft '11 and studs on these yokes, and as the yokes have swiveling movement they are thus easily tilted. The plates on are hinged to the yokes, as shown in Fig. 8, being adapted to move upward in order to pass below the ends of the boxes in the position shown in dotted lines in Fig. 5, until they get below the line of the recess (1 of the box, when they assume a horizontal. position, and in the lifting movement they are adapted to sustain the weight of the box by means of a shoulder 0', which comes in contact, as in Fig. 8, with the rear wall of the yokes.

I claim as my invention 1. In combination, the hopper, the means for forcing the molds beneath the same, the swiveled plates for engaging the molds, the vertically movable supports carrying said plates, and means for turning said plates While elevated for dumping the boxes, substantially as described.

2. In combination, the hopper, the means for moving the mold-boxes underthe hopper, the levers for raising the boxes, the supports swiveled in the ends of the levers, the plates m for engaging the boxes pivoted to the swiveled supports, and means for operating the levers and the swiveled supports, substantially as described.

3. In combination, the hopper, the moldboxes having recesses in their sides, the means for moving the mold-boxes under the same, the swiveled plates adapted to the recesses in the molds, the elevating-supports for the plates, with operating means for said supports, and means for turning the plates to dump the molds, substantially as described.

4. In combination, the hopper, means for moving the boxes under the same, the moldboxes, the elevating-levers, with means for raising and lowering them, and the pivoted gravity-plates at the ends of the levers for engaging the boxes, substantially as described.

In testimony whereof I affix my signature in presence of two witnesses.

GEORGE CARNELL. Witnesses:

F. L. MIDDLETON, J. M. SPEAR.

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