US35843A - Improvement in brick and tile machines - Google Patents

Description

U ITED. STATES:

ATET Gratte.

. 1 zDoKisTnEE-ii Ori-SALEM, 'OHIO- ,r L

Specification forming part -cfLctter's-Pagtent No. 35,843; dated July 8, 1362A." 'Y

.'I' all whom, it may concern.-

Be itY known that I, ZADOK STREET, of.` Salemtin the county of "Columbiana and "State ofA Ohio, have invented a new and useful Ma chine foi-Making Bricks and Tiles; and I do herebydeclare the following to be a full and exact description oft-he same, reference being afterward pressed equally into the several molds; second, in an improved device for separating the surplus clay'from that within the molds before withdrawing the latter.

To enable those skilled in the art to fully understand and use my invention, I will proceed to describe its construction and operation,

A represents the grinding-mill, having the' customary toothed shaft, B, which is rotated by a sweep, f?. caare'apertures in the lower part of the grinding-mill, communicating with pressing-machines constructed as follows:

D is a shell or box open at the top, serving to receive the clay as it vcomes from the mill.

E is a sliding gate employed to close the apertures a, and thus separate the clay-which is to be pressed into the mold from that which remains in the mill. The said gate may be j drawn down by means of a treadle, F, con

nected to it by means of links f and retracted-- by springs G.

His the follower hinged by one edge to the gate E, near the lower edge of the latter.

' n is a leverfor forcing down the followefto press the clayzinto the molds, as hereinafter, explained.V

1- is a movable mold provided-with partir-- tiens i, Awhich-are formed of glass or analogous substance adapted toimpa'i't a smooth surface to the-bricks. f'fT-bfbnttdm', ends, and sides f the molds are' alsqlined with the-.same mate` J J J are barssccnred acrossv the boxDimmediately above and corresponding with the positions of the partitions i. l f

l is awire cutter attached at each end to a bar, L, sliding on guides Z l. This cutter is -more clearly represented in Fig. 3.

The operation of the machine is as follows" The box D havingr become full of tempered clay from the mill A, the gate E is forced down by means of the treadle F, closing the communication with the mill. VThe hinged follower H is then drawn down by means of' the lever h, the effect of which is to force the clay at ence downward and outward, completely filling the molds to their extreme outer ends.` The bars J have the effect of separating the clay at a distance above the molds, so that an equalquantity may be pressed into each, and equality in the manufacture 'thus insured.

Vheu thebrieks infthe'molds .are sni'li'ciently pressed, the follower Hand the gate E are allowedAto rise. The wire or cutter K isl then drawn forward, producing a smooth and even separation between the clay within the molds and that which is tube left within the box D.

4ill/*bile the clay is passing from the mill into the boitv a carrier-on one side of the machine v pushes in an emptymold while another carrier on the other Aside withdraws thefull one.

By cuttingthe clay on alevel with thetop of v the molds before withdrawing thelatter bricksA are produced as uniform and squarein size and shape as those made by hand, the surface not being disturbedzor put out of shape, as is j commonly the case in the act of withdrawing the filled molds fromtbrick-Inachines.

The lining of the molds with glass facilitates very much the removal of the bricks from the molds, and with but little labor imparts to the bricks as' smooth a `surface asis ordinarily 'produced under heavy pressure. The ease of withdrawing the bricks likewise permits the Aclay being worked in a much drierand stnfer condition than is ordinarilypracticable, and hence the bricks better retain their form.

' ,Tiles of any size and shape, dictated by their purpose and the character' of the'clay used, are made in the 'manner above explained by hay" .ing the molds and other partso'f form and dimensions adapted therefor. l

Similar machines may be applied to the other sides of the mill, but the' one 'showu is deenied .'suioientgteillustrate the principles of the inven'tiou. cut-.off gate..tofclose the aper tures a may, 4if preferred,'be maide.to slide up vfrom belowf Crank orcalr'power will be appliedrifneed fulfto force down 'thehinged follower. E'.

- I am aware that it is common to use metallic molds in brick-machines, und therefore do not desire to be understood as claiming thisy as my invention'.

Having thus described my nvention,what I claim therein as new, aud desire to secure by Letters Patent, s

. 1. The combiuutioii ofthe slidirig gate E,

rllower H, hinged thereto .by its igmr edge,- 'and leverlr,` constructed, arranged, and'operating in the mannerdescribed, to first sepa,- rate -the clay in the'box D from that within The'wire cutoff K, so arranged and operated,"by means of bars L @md guides Z'Z, as to separate the surplus clay from that pressed into the molds, as hereiubefore described.

- v ZADOK STREET'. W tnesses v THOMAS KENNETT, PETER AMBLER.

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