US64812A - Improved brick-moulding machine - Google Patents

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TIMOTHY TUFTS, 0F SOMERVILLE, MASSACHUSETTS, 4ASSIGrNOR TOy 'CHARLES' C. BEERS AND PERSON DAVIS,

Letters .Patent No. 64,812, dated May 14,1867.

IMPROVED i BRICK-MOULDING MACHINE.

'IO ALL PERSONS TO WHOM THESE PRESENTS SHALL COME:

Be it known that I, TIMOTHY Tours, of Somerville, in the county of Middlesex, and State of Massachusetts, have invented a new and useful or improved Machine for Moulding Bricks, and do hereby declare the same to be fully described in the following specification, ind representedl in the accompanying drawings, of which- Figure 1 is a top view. I i

Figure 2, a side elevation.

Figure 3, a front elevation 5 and ,p Figure 4, a longitudinal central and vertical section of such machine.

'Y Figure 5 is a. vertical and transverse section, taken through the expressing-chamber, its plunger and dis-v charging tubes, and the mould-frame.

In such drawings, A represents a b ox or reservoir for holding the clay to be converted into bricks. This reservoir opens, at or near its bottom, into an expressing-chamber, B, which is arranged against the front of the reservoir, is open at top, and.l provided at bottom with one or more tubular mouths or convcyers, C C` C, extending down'therefrom, and opening out of the chamber. Each of these tubes C is rectangular in its horizontal section, and is about the shape and size of. a brick to be made.' There are to be as many of such tubes or mouths C C as there aresopenings in the mould D for holding the bricks, and cach tube, while the mould is in the act of being elevated, when underneath the expressing-chamber, is to enter 'one of the openings a 1 a of the said mould. l Within the expressing-chamber is a plunger, E, supported by two rods b b, having studs c c, to enter thegrooves d d of two .cam-wheels F F, fixed upon a horizontal shaft, G, arranged as represented. Figure 6 exhibits a side view of one of such cams with its groove. The purpose of the said cams F F is to elevate the plunger within the expressing-chamber, and allow it to fall or be suddenly forced downward by the action of the Weighted lever p, to be hereinafter described, its descent being simultaneous, or about so, with; that ofthe mould on the veonveyers C C C. The mould D re's'ts on a bottom-board, e, which in turn is supported on a. stationary platform, j', arranged as represented. The said mouldand its bottom-board are moved iirst underneath,'and next out from underneath, the expressing-chamber by a carriage, H, whose four wheels gygy are supported on two parallel rails I I, arranged as shown in the drawings. The said carriage H has a plate, K, applied to it, and so disposed that, when the carriage is forward to the extreme of its movement, such plate is directly underneath, and close against, the lower ends of the several delivery pipes or conveyers C C. t is between the front end of the plate K and the front bar L of the carriage "that the mould and its bottom-board are placed, each front bar and plate K serving to move the said mould and its bottonrboard on the platform f during the movement of the carriage Heither backward or forward. The proper movements of the carriage H are effected by means of two grooved cams z'z', two levers c 7c, and two connecting-rods ZZ, arranged as represented in the drawings, the cams being iixed on the shaft G. A cross-bar, n, fixed to the two rods b b, has a standard, o, erected on its middle, and resting at its top-against the lower edge of a lever, p, carryinga weight, q, which' should be adjustable on the lever. The purpose of the said Weight is to depress the plunger, so as to cause it to expel the clay from the expressing-chamber and into the. mould-chambersv while the mould may be in the act of descending. When the mould is directly underneath the expressing-ehamber the bottomboard of such mould rests on an elevator, L, whose vertical movements' are e'ected by two grooved cams r 7, and two rods s s, extending from such'ca'ms to the elevator, such 'rods having studs t to enter the grooves of the cams. One of the said cams r r isshownin side elevation in Figure 7. Furthermore, there is amechanism for insuring the depression of the mould at the proper time. This mechanism consists of two rods t" t', arranged outside of, and near opposite ends. of, the expressingchamber, and provided with springs a a for pushing 'the rods downward upon the mould. In order to relieve the mould'from the pressure ofthe rodsand springs, pre1 paratory to its being moved out from underneath the expressing-chamber, the upper end ot each red. .is provided with a stud, which is extended into and against an internal cam, u', formed in the outer face ot' one oi' the cama wheels F F. A scraper, S', for cleaning the outer surfaces of the conveyers C C C, such scraper being formed in top view, as shown in Figure 8, is applied to such conveyors, and is affixed to the two rods t/ t. It moves with these rods, ts to the outside surfaces of the conveyers', and serves to scrape oli' any superfluous clay which may gather on them. The box or reservoir A, for holding the clay, has n. vertical shaft, M, extending up through its centre, and provided with several series of radial arms 11 v, which revolve with the shaft, and operate with stationary rods vzu fw, extended across the reservoir, such arms and rods serving to mix and tem-per the clay, while the shaft M may be in the act of being revolved.'

In the above-described machine, it will be observed that the clay, instead of being discharged into the top of eachmou1dchan1ber,is first led into the lower part' or upon the bottom of such chamber, and rises in the chamber, as the mould falls away from the expressing-chamber and descends on the several tubular conveyors C C. These latter, in conjunction ivith the mould, serve to form the bricks, and in so doing operate on a new principle, as they cause the clay to be uniformly spread into each mould-chamber as it rises therein. In this way very perfect bricks can he made, so closely resembling what are termed pressed bricks as to often render it diicult to distinguish any difference between them. It may be mentioned that after the mould may have been filled with clay and moved out from underneath the series of conveyors and upon thc stationary platform,

`an attendant should remove it from the said platform and substitute in its place another or unfilled mould.

What I claim as my invention is as follows: I claim the combination of one or more tubular convcyers C, with the expressinghamber B, its plunger E, and mould D, to operate substantially as specified.

I also claim the combination and arrangement of the covering plate K with the carriage H, one or more tubular oonveyers G, the expressing-chamber and its plunger, the whole being provided with mechanism for operating them, substantially as specified. v i

I also claim the combination of' the mould-lifting and depressing mechanisms, with one or more tubular conveyers C, the expressing-chamber and its plunger, to operate with the mould, as specified.

I also claim the combination of the mould-operative carriage H with one or more tubular conveyers C, the expressing-chamber and its plunger, applied to the mixing reservoir, and provided with mechanism for `operating them, substantially as specified.

I also claim the combination of the scraper S withA one or more conveyers C, the expressing-chamber B,

and its plunger E, to operate with the mould, substantially as set forth.

' TIMOTHY TUF'lS.

Witnesses:

R. II. EDDY, F. P. HALE, Jr.

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