US24320A - photo-litho - Google Patents

Description

MAYO, on NEW ll/.lACI-IIlTl.v FOR FINISHING. BRICKS.

To all whom iti concern;

Be it known that I, W. S. MAYo, of the city, county, and State of New York, have invented a new and Improved Machine for Finishing Bricks; and I do hereby.l declare that the following is a full,V clear,` and` exact description of the same, reference being had to the annexed drawings, making a part of this specification, in which- Figure l, is a longitudinal vertical section of my invention, taken in the line Fig. 3. Fig. 2, is a transverse section of ditto, taken in the line y, y, Fig. 1. Fig. 3, is a horizontal section of ditto, taken in the line e, s, Fig. l. A

Similar letters of reference indicate corresponding parts in the several figures.

This invention relates to a new and improved machine for giving a smooth even surface to bricks previous to the burning of the same and after they have been properly dried. These unburnt bricks, technically termed clots by being subjected to a requisite pressure within metal molds have their sides smoothed and present when burnt a finished appearance, having a smooth,

compact and even surface with angular corners. Bricks of this character, which are generally known as Philadelphia bricks are used for facing houses of a superior class, and are considerably more expensive on account of the labor hitherto required in their manufacture, a great portion of the labor being due to the ineiciency of the machines used for linishing or smoothing the clots.

The object of the within described invention is to expedite and perfect the finishing or smoothing of the clots, the machine being so constructed that steam may be used as a motor and Iprovision made for subjecting each individual clot to the same pressure however much they may vary in thickness.

To enable those skilled in the art to fully understand and construct my invention I will proceed to describe it.

A represents a rectangular box, which may be constructed of metal or of wood. If constructed of wood as shown in the drawings,-the box should be lined with metal plates 0;, polished at their inner or exposed sides. The interior of the box A, transversely should be of equal dimensions to the clots to be operated on, and the box may be of a greater or less length as desired, but I prefer having it sufliciently long tocontain` about twenty clots with their plates whichA will belpresently referred to.

B is a plunger which works withinA the boxY A and. is driven: by: a crank wheel C, and connecting rod-r Dbetw.een gui'desfE, E. Between the inner endl of' box A, and' the guides- E', E, a feed; block; F, isplaced andv allowed to slide back and forth transversely a requisite distance on a bed or bar G, which is attached transversely to the bed H, of the machine. The feed block F, is provided wit-h two rectangular openings b, b', the dimensionsl of which are equal to the clots.

The operation of the machine is as follows The crank pulley C, is rotated by steam, at least it is designed such a motor be used. The clots designated by I, are placed alternately and edgewise in the openings b, In', in the feed block F, by boys or attendants, one being at each side of the machine and the block F, moved so as to bring the openings b', with their clot alternately in line with the box A, and plunger B,-the latter at each forward movement forcing a clot into the box A. With each clot I, there is placed in the openings b, b', of the feed block a metal or wooden plate K. These plates correspond in size supercially with the clots I, and are placed at one side of them so that the clots in the box A, are not in contact, the plates K, being interposed between them. The working of the plunger B, in the box A, forces the clots through the box and the friction of the clots is the only resistance offered to the action of the plunger. The box A, therefore must be suiciently long to contain a sufficient number of clots necessary to produce the requisite friction to allow the clots to be subjected to a necessary pressure. The edges of the clots are ,smoothed by being forced through the box, the plates a, imparting the smoothness to the edges and the plates K, keeping the clots intact so that they cannot be incorporated together or united under the pressure.

From the above description it will be seen that there is no arbitrary or positive resistance given the clots I, and each clot will be subjected to an equal pressure and all perfectly smoothed or finished. In all ordinary machines for the purpose that have passed under my observation the clots have been placed in separate molds,

compressed therein 'and thence forcedI out, and as the clots Will Vary somewhat in size, those that are small Will be imperfectly faced or finished, While those that are large will be subjected to an unnecessary pressure. This'result is due to the pressing of the clots between the plunger and the bottom of the mold, the clots being thereby subjected to an arbitrary pressure. TheV ordinary machines therefore cannot belrapidly, driven, nor can the Work be expeditiously performed.

IWould remark that although the box A, is represented and described as being in a horizontal position, still itmay be placed in a vertical or inclined position. The posiy y `IW. sMAYo.

Witnesses:

M. M. LIVINGSTON, l MICH HUGHES.

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