US54752A - Improved brick-machine - Google Patents

Description

UNITED STATES PATENT OFFICEe A. R. MCNAIR, OF NEV YORK, N. Y.

IIVIPROVED BRICK-MACHINE.

Specification forming part of Letters Patent No. 54,752, dated May 15, 1866.

To all 'whom 'it may concern Be it known that I, ANTOINE R. MCNAIR, of the city, county, and State ot' N ew York, have Y invented a new and valuable Improvement in Brick-Machines; and I do hereby declare that the following is a full, clear, and exact description of the construction and operation of the same, reference being had to the annexed drawings, making a part of this speciiication, and to the letters and figures of reference marked thereon.

The object of my invention is to provide means for manufacturing bricks with greater rapidity and in greater perfection than has been possible by the means heretofore devised.

To this end I construct a machine as represented by the drawings, in which letter A is a cog-wheel attached to the front end of a shaft,B.tI This shaft B extends from the righthand side to the left of my machine, through the cen ter ofthe mortar-box, and revolves on boxes or bearings at each end thereof. I attach knives to this shaft, which are made in the form of a right-angled triangle, and extend from the shaft to near the top and bottom of the m0rtar-box. The office performed by these knives is to mix and temper the mortar in the box. Being made in the form of a ri ght-angled triangle and adjusted on the shaft at proper distances from each other, they perform their functions with certain ty and regularity, moving the mortar from the right to the left or from the left to the right, as may be most desirable, the direction given to the mortar depending upon the position in which I place the hypotenuse sides of the triangular knives.

My mortar-box is marked C on the drawings, and has a hopper through which the mortar is introduced. Its top is made circular on the inside, and is so adjusted as to open easily on hinges. The front side of my mortar-box is also made in a circular form. The rear side of the lower half of this box is made upright, and I sometimes place a slide therein, by which I regulate the flow of the mortar to the board which divides the slide-boards, hereinafter mentioned.

Letter D is a cog-wheel and shaft, to which I attach the crank or belt-drum, by which the machinery is moved. Its cogs mesh with the cogs on cog-wheel A.

E is a sliding board, that carries the molds under the mortar-box and delivers them on the platform on the rear of the machine. E

is a similar board, the olice 0f which is to force the mortar into the molds when they are being moved under the presser. These boards E and E are constructed hollow, as represented on the drawings, to afford a space for the molds, and the lower side of the front E is cut out to allow the molds to fall and from thence, one at a time, on the bottom board of the machine, which is effected by the front E being withdrawn from under the pile of molds. E and E are connected together at their outer edges. Between them is a piece of timber, to which they are firmly attached, the. thickness of which is equal to the thickness of board separating slide-boards E and E, so as to allow the latter to slide easily in the spaces allotted to them in the machine.

The piece of timber separating E and E is connected with and worked bya series of levers and shackle-hinges, as shown at O. The lower lever of this series is placed in a horizontal position, and is connected, by an eccentric, F, with the shaft G.

rIhe shaft Gr extends across the lower side of the machine from right to left, and has a4 cog-wheel at its right-hand end, (marked I,) which meshes in a small cog-wheel near the inner end of the wheel and shaft, (marked D.) The shaft G has three eccentrics-oue at each end and the other at or near its center. The central eccentric is connected with the lever last mentioned, and the others are connected with and operate the pressen, hereinafter described.

My presser is marked H on the drawings. It is a square frame of strong timbers or iron bars, the sides of which work vertically in suitable bands or T-slide heads attached to the sides of the machine, and it has a firm central beam or board -of the same length and width as the top of the molds, respectively.

It also has hinges at the lower ends of the side beams, nien K.

The pitmen K are connected at their upper ends with the said side beams, and their lower ends are attached to the eccentric-wheels L L.

I sometimes construct my machine in such a manner as to dispense with the small wheel on shaft D. In that case I bring the cogwheels A, D, and I on a line, and adjust them in such a manner that the cogs of D shall mesh by which it is connected with the pit on the rear E,

into -those ofA., and I, D beingbetween them. I sometimes dispense with the wheel D and its shaft. In that case I bring the cog-Wheels- A and I on a line, and adjust them in such a manner that their cogs shall mesh into each other.

My machine is operated as follows, namely: I place the mortar in the hopper and put the machine in motion. I next place the molds in the opening on the front side of the machine, piled one upon the other. The molds are taken from the pile, one at a time, and moved back- Ward under the mortar-box by the rearward movement ot' the lower sliding board.- At the same time the upper sliding board shoves the mortar from the board that separates the two slide-boards into the molds, and the latter pass under the presser. After being pressed the molds are forced onto the platform on the rear of the machine and the bricks therein are readyto be taken to the yard for drying.

My device of feeding the molds sidewise and in a pile to the machine from the front side possesses great advantages over the usual method of passing such molds through an opening in the side of the machine one at a time;

scribed, constructed and arranged substantially as and for the purposes set forth.

A. R. MGNAIR. Witnesses:

HENRY E. ROEDER, J. G. SMITH.

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