US53980A - Improved brick-machine - Google Patents

Description

UNITED STATES ArtNr trice.

JAMES HOTOHKISS AND EZRA BUSS, OF SPRINGFIELD, OHIO.

IMPROVED BR IGK-MACHINE.

Specification forming part of Letters Patent No. 53,980, dated April 17, 1866.

declare that the following is a full and eXact description thereof, reference being had to the accompanying drawings, making part ot' this specification.

Figure l is a plan ot' the machine, some of the projecting parts being in section Fig. 2, a vertical section thereof in a plane indicated by the line fr x, in Fig. l; Fig. 3, a vertical section in a plane indicated by the line y y, Fig. l; Fig. 4, a side elevation ot one ofl the followers detached.

Like letters designate corresponding parts in all of the ligures.

The molds are formed concentrically in a revolving mold-wheel, B, which passes under the supplying-receptacle O, to be filled with clay, and the pressure is given partly by the action of a spiral win g in the receptacle, in connection with a lifting-cam beneath, and partly in connection with the under cam by a stationary steel plate, M, situated just above where the molds leave the receptacle. This plate strikes off the surplus clay and sinooths the upper surface of the bricks. lt is held in place under a bar, s, of the frame merely by slight springs r r, which yield when any unyielding substance, suoli as a stone, strikes against the plate, and allows the plate to be pushed back out of its place, thereby obviating any breakage ot' any part of the machine.

A little distance behind the plate M is located a clearing-scraper, L, for scraping off any loose clay on the mold-wheel. It is sustained or suspended by a spring, in, which reaches back upon the bar s, and is held there on by a screw or bolt, o, in a notch, p, at the rear end of the spring. Another screw, n,

passes down through the spring and into the plate M. By this arrangement, when an obstruction throws out the plate M the spring m with the scraper L is borne away thereg with, the rear end of the spring slipping out from under the screw-head o.

The followers D D in the molds are raised at the proper time by a stationary cam, G, till the bricks are lifted entirely out of the molds. They are respectively provided with hinged tops or lids d el, which are turned up, as shown in Fig. 2, as soon as the followers lift the bricks out of the molds. This turning up of the follower-lids throws the bricks oft' on the mold-wheel and upon their edges, so that they veying away than when lying flat upon their sides, as ordinarily.

The follower-lids are thus turned or tilted up by means of Vertical bolts b b,e'xtending down through the followers, in which they slide upward by the action of astationary-cam, H, Fig. 2, and are again brought down by the action of a spring, c, as represented. There are projections fj' on the under sides ot' the lids, against which the bolts push in lifting the lids, and they enable the lid to be thrown fully into a vertical position. The lids return to a horizontal position after the bolts b b descend, either by their own weight or by the descent of the followers into the molds.

In order to keep thefollowers from ascending too high in the molds, and to make their return down into the molds again certain, hooks h h, Figs. 3 and 4 project from their lower sides, and these hooks run under a ledge or lip, I, Fig. 3, on the side of the cam-track E, formed and arranged substantially as represented. This ledge or lip is located in that part of the circle required for the purpose.

At the rear edge of each mold isinserted a steel or hardened-iron strip, a, which receives the wear of the material, so that the molds may remain entire and complete. These strips are generally inserted in dovetail grooves, and they are removable, so that they may be replaced if necessary.

\Vhat we claim as our invention, and desire to secure by Letters Patent, is-

l. Attaching the spring-scraper L to the are more readily grasped bythe hand for con- The above specification of our improved brick-machine signed by us in presence of subscribing Witnesses.

JAMES HOTCHKISS. EZRA BUSS.

Witnesses als to Hotohkisss signature:

T. B. BROWN,

n J. KATZ.

Witnesses as to Busss signature:

EDWIN D. Buss, M. T. HARWooD.

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