US20536A - Improvement in brick-machines - Google Patents

Description

UNITED STATES PATENT OFFICE.

GERARD EANoKER, or NEW YORK, N. Y.

IMPROVEMENT IN BRICK-MACHINES.

Specification forming part of Letters Patent No. 20,536, dated June 15, 1858.

' exact description thereof, reference being had to the accompanying drawings, forming a part of this specification, the same letters of reference, wherever they occur, referring to like parts.

Figure l is a side elevation of the machine, omitting the endless belt for carrying the brick out of the machine. Fig. 2 is a plan view through the line Fig. l. Fig. 3 is a vertical cut-section through the line rc2 fr?, Fig. 2. Fig. 4 is a vertical cut-section through the line x3 fc3, Fig. 2. Fig. 5 is a detached View of the intermittent feed-motion.

Letter A represents the frame, which may be constructed of any suitable material and form to adapt it to the work required of it. At the lower part of the frame is secured a bed-plate B. Upon this bed-plate is arranged the circular molding-plate C, arranged upon and made to revolve on a spindle D, extending through an opening in the bed-plate B. The molding-plate is intended to be thicker than the brick to be formed,andin it are four or any other suitable number of matrices E, arranged atequal distances apart and from the spindle I). Upon the Vunder side of the molding-plate is secured cogs F, which gear into a small bevel cog-wheel G, arranged at right angles to the molding-plate for the purpose of rotating it when required. Onithe outer end of the axis on the cog-wheel G is secured a second cog-wheel H,Which Agears into another cog-wheel I, having upon its axis J (and secured to the cog-wheel I) a quadrated cam K, which is operated upon by a crank-pin L, secured on the crank M, attached to the end of the upper transverse shaft N, for operating one of the compressors and the brick or mold discharger.. The object of this quadrated cam K is to rotate the molding-plate by an intermittent motion the quarter of a circle at each revolution of the shafts for operating the compressors, so as to allow time for lling the molds and compressing the clay to form the brick.

Letter O is a cam on the shaft N, the object of which is to operate au upper plunger or compressorP to compress the clay in the matrix on the upper side in opposition to the action of the lower side plunger or compressor Q, operated bya cam R on a shafts at the under side of the bed-plate B, and having a uniform speed given to it with that of the shaft N by means of the cog-wheel T and T2 on the ends of their respective shafts gearing together through the intermediate cog-wheel T3, arranged on an axis extending from the side of the frame A. The object of this arrangement of the two compressors is to compress the brick at opposite sides while in the matrix, and thereby obviate the use of a bed upon which the clay Would have to be pressed, as well as the tendency of the clay to adhere to the surface of the bed when pressed upon it, and thereby destroy the sharp corners g/of the brick and otherwise affect its perfect forl mation.

Letter U is a grooved cam-Wheel secured upon the shaft N, the object of which is to operate a piston V for the purpose of discharging the brick from the matrix upon any suitable endless table or belt for carrying the brick out of the machine.

Letter W is a hopper into which the pulverized clay is put for delivering it to the reciprocating feed-box X. This feed-box is secured in suitable guideways upon the frame of the machine, so that its lower surfaceis on a level with the upper surface of the moldingplate C. Attached to the upper back edge of the feed-box is a ange Y, and also asimilar one Y2, attached to the lower front edge of it. The object of the first of these iianges Yis to cut off the further supply of clay from the hopper when the feed-box has been projected forward over the matrix in the molding-plate C to deliver its charge into the matrix, and the other Y2 is intended to form a covering or capplate to the matrix to sustain the pressure upon the clay for expelling the air therefrom and shaping the brick when the feed-box has been drawn back to receive a second charge of clay.

Letter Z is an air-expelling piston. This is arranged in suitable guideways in a vertical position, so that the upper end or face of it is directly under the lower opening of the matrix, but near enough to prevent any part of the clayin it escaping. The piston Z is opere ce,

ated by a cam CL2, secured upon a horizontal shaft b2 at the lower part o 'l the machine, which is rotated by means of a cog-Wheel d2 upon it gearing into a propelling cog-wheel e2 on the lower plunger' or piston-shaft S. The cam a2 is intended to elevate the piston lgradually till its greatest pressure, and then byits abrupt termination drop the piston suddenly, so as to clear the matrix to allow of' the rotation of the molding-plate to complete the pressure in the second operation under the upper andlower pressers.

Letter f2 is a bell-crank secured upon a rock-shaft g2 and having attached to its vertical arm a connecting-rod h2 for alternating the motion of the feed-box between the hopper and matrix. This alternating motion is communicated to the crank by means of a pin 7a2 in the side of' a Wheel attached or secured upon the shaft h2, operating upon the forked end of the horizontal arm of the crank f2, so that as it rotates the pin k2 acts first upon one toe of the fork and then the opposite, and thus transmits a reciprocating motion to the feed-box. v

Letter m2 is a propelling-shaft, having on its end a small cog-Wheel n2, Which gears into a second cog-Wheel p2, secured on the end of the shaft N for operating the upper compressor-piston P.

Having now described the Working parts of 1nyinvention,I Will proceed to set forth What I claim and desire to secure'by Letters Patent of the United States:

1. The use of the flanges Y and Y2, in oombination With the feed-box Y and rotating molding-plate C, or equivalents, substantially as described, and for the purposes hereinbefore set forth.

2. The use of the air-expeller piston Z, in combination with the rotating molding-plate C and the flange Y2, or equivalents, actuated simultaneously with the feed-box, for the purposes substantially as hereinbefore described.

3. In combination with the rotating plate C, the reciprocating feed-box X, having the flanges Y and Y2 attached thereto, the bellcrank f2, and pin 7c2on the cam a2, when these several parts are constructed, arranged, and operated inthe manner and for the purposes hereinbefore set forth.

GERARDA BANCKER. Vitnesses:

PETER R. RoAoH, CHARLES L. BARRITT.

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