US17203A - Improvement in rotary brick-machines - Google Patents

Description

NITE-D STATES PATENT EEICEo GEoEGE GEANGLE, oE PHILADELPHIA', PENNSYLVANIA.

IMPROVEMENT IN ROTARY BRICK-MACHINES.

Specification forming part of Letters Patent N0. 17,203, dated May 5,1857.

had to the accompanying drawings, makinga' part of this specification, in which- Figure 1 isv a vertical transverse section;

Fig. 2, a top view of the cylinder, with a sec` tion ofthe frame which supports it; and Fig. 3 a longitudinal section of the cylinder` and its shaft through the center of the same.

Like letters in the different figures indicate the same objects.

The nature of my invention consists in the peculiar construction, arrangement, and combination of a rotary cylinder open at each end and having a partition fixed transversely across the middle, and'also two series of molds openingaround the periphery of the same, with a stationary bed-piece fixed at each end ofthe frame and projecting within the cylinder, so as to serve the purpose of a bottom for each mold of the two y series as they are successively passed over the same during the rotary motionof the cylinder for the purpose of reducing the cost by dispensing with the hitherto usual separate and ydistinct bottom for each mold of a rotary brick-machine.

Referring to the drawings, A is the cylinder, B the stationary bed-piece, and C the frame which supports the whole, and which is constructed in any suitable and substantial manner. The cylinder A, with its partition e, is cast of iron in several pieces, the molds f f being made radially through the periphery or shell of the cylinder, so that the inner ends of one series shall be opposite to the inner ends of the divisions between the molds of the other series, and so as to be adapted for the alternating motions of two plungers (not shown in the drawings) in a well-known manner, as the said cylinder is rotated in unison therewith. The under or inner side of the shell of the cylinder, at each side of the partition e, is turned true, and is parallelwith the upper side of the same, and placed so as to fit accurately in contact with the middle piece B, the said bed-piece being fixed firmly to the frame and having its upper surface curveformed,with a slightly shorter radius than that of the inner side of the cylinder, so as to adapt the same to fit closely to the cylinder immediately around the under parts of each nold, while the said mold is beneath the low a sufficient space, g, between the said bed-piece and cylinder to permit the pressed brick in the said mold to be so passed over the same without contact therewith after it is the said rest B in the direction ofthe arrow.

The bricks are discharged from the molds at the lower side of the cylinder upon a carrying-band in the usual manner, by means of a secondary plunger, (not shown in the drawings,) which may be made to work in unison with the main plungers, which condense the clay in the molds by carrying the rods of the said secondary plungers through the vertical grooves h 7L .in the frame, or in any other suitable manner. D

Operation: Clay being placed inthe hopper and alternate stopping and moving rotation given to the cylinder A in the usual wellknown manner, the bed-piece B forms a bot"- tom to the molds during the time they are under the hopper and subsequently under the plungers, and then allows the pressed brick tact with the said bed-piece B, and thus bricks may be rapidly produced from untempered clay by means of this invention without a separate and distinct bottom for each mold. Y

The expense of constructing and keeping in repairthe movable bottoms, which have heretofore been considered indispensable fior Vthe molds in cylinders of this character, is very great, and consequently any construction whereby they may be avoided must be. exceedingly useful and important to the trade.

I do not claim the manner of supporting or of operating the cylinder and plungers part of the upper side of the stationary bedf respective plunger, and at the same time ali carried by the cylinder from off the middle of to pass to the place of discharge without cona y mos herein specified 'or described, as these have cylinder Aand bed-pieceBbeingeonstructed, been described and used before in other cases; arranged, combined, and operated together, as

but f and for the purpose set forth and described.

.What Iclaim as my invention, and desire to secure by Letters Patent, is-

A cylinder, A, Without movable bottoms to the/molds, in combination with a bed-piece, B, fixed to the frame of the machine so as to serve the purpose of said bottoms, the said GEORGE CRANGLE.

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