US266602A - Brick-mold - Google Patents

Description

ATENT JOSEPH BLUM, OF CHICAGO, ILLINOIS.

BRICK- MOLD.

SPEOIFICATION forming part of Letters Patent No. 266,602, dated October 31, 1882.

(No model.)

To all whom it may concern:

Be it known that I, JOSEPH BLUM, of Ohicago, in the county of Cook and State of Illinois, have invented certain new and useful Improvements in Brick-Molds, of which the following, in connection with the accompanying drawings, is a specification.

In thedrawings,Figure lis atop or plan view of a brickm0ld embodying my invention. Fig. 2 is a section in the plane of the line 0c 00 of Fig. 1, viewed in the direction indicated by the arrow there shown. Fig. 3 is a section in the plane of the line 9 y of Fig. 1, viewed in the direction indicated by the arrow there shown; and Fig. 4 is an end view of the mold.

Like letters of reference indicate like parts.

A represents the frame of the mold. This frame consists of the side pieces, a a, and of the end pieces a a, rigidly attached to the side pieces; also, in molds wide enough to receive four or more bricks, I employ a central piece, a, which constitutes a part of the frame, and which is rigidly fastened to the end pieces. The pieces a a are cut away, as shown at b b, to facilitate handling, and the pieces a a are arranged somewhat above the lower edges of the pieces a a, as shown in Figs. 2 and 4.

B B are the bottoms of the mold-compartments. These bottom pieces are adapted to be moved up and down between the sides of the mold-compartments, and are suspended from the end pieces a a by means of flexible connections c c.

O G are the ends of the mold-compartments, and consist of plates hinged at their lower edges to the bottoms B B, as indicated at d d, and at their upper edges to a vertically-vibrating link, 0, hinged to the frame A.

When two or more pieces B B are employed I connect them together rigidly at the ends by means of connecting plates or pieces B" B, the ends of the piece a being cut away, as shown at f f, to permit these connecting-pieces to move as the bottoms are moved; also, to

prevent the bottoms from swaying endwise I connect them by means of a guide rod or bar, B, passing either through a vertical slot, D, in the piece a or between guide bars or rods 9 9, located in the said piece.

In order to provide the mold-compartments U with a canvas lining for adapting them for bricks intended to be molded without sand, I make a false bottom, h, and false ends h h, the latter beinglinked or hinged at their lower edges to the false bottoms, and these parts I cover with canvas h. These false bottoms and ends I then apply to the bottoms B B and ends 0 O in any suitable way, as indicated at t in Fig. 2.

To use this mold I proceed as follows, it being understood that it has first been filled in the usual or in any well-known way, and that the clay so molded is to be carried away and discharged upon a drying bed or yard. To discharge the clay, I turn the mold over carefully upon the drying bed,as usual, then, holding to the side pieces, a a, and pressing upon the bot tom pieces B B, I draw the frame up from the brick, while the bottom pieces remain stationary until the bricks are completely loosened from the mold, when I lift the mold up and wholly from the bricks, which are left to dry. In practice, therefore, the frame A is drawn up with respect to the bottom pieces, B B; but when the mold is turned over to receive a new load the bottoms drop to their proper places. The act of drawing up the frame in this manner results in tilting the end pieces a a away from the ends of the bricks, and the pressure of the bottoms B B upon the bottoms of the bricks causes the bricks to he pushed from the molds and prevents the bricks from losing their proper form also, by this means the corners and edges of the green bricks will not be injured.

I am aware that brick-molds have heretofore been constructed with vertically-movable mold-bottoms, and with tilting ends in the mold-compartment. I do not therefore here intend to claim the same, broadly; but

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is

The combination, in a brick-mold, of the frame A, consisting of the side pieces, a a, and of the end pieces a a, rigidly attached to the side pieces, the bottoms B B, fitting loosely in the said frame, and suspended therefrom by mesinsof flexible connections, permitting the sides of the frame serve as sides for the moldbottoms to be moved vertically in the frame, compartments, substantially as and for thepurthe end pieces (J O, hinged at thcirlower edges pose specified.

to the bottoms B B and at their upper ends JOSEPH BLUM. 5 t0 the frame A, the Whole constituting a brick- Witnesses:

mold havingvertically-movable mold-bottoms, F. F. WARNER,

tilting expansible end pieces, and in which the H. FRANKFURTER.

Images