THE 



NEW-ENGLAND 



FARIVIERS' AND MECHANICS' JOURNAL. 



Vol I. GAROINi^R, APRIL, 1S2',. N«. 4. 



MSCHAiriCS. 



HOWE'S BRICK PRESS. 



Plate IV. Fig. 1. A, is the top of the frame work, which 

 moves the case or mould H, in which the Brick is contained while 

 pressing. The case is attached to this, by means of two iron rods, 

 which slide up and down in the frame of the machine, as repre- 

 sented m the drawing. On one side of A, is attached a semi-circle 

 with cogs, which match into those of the pinion I. B, is a large 

 piece of timber, or piston, which slides up and down, through holes 

 in the cross-pieces, which are made to fit it and sulTer it to pass 

 through easily, and accurately; at the lower end is a fiiction roller. 

 F, represents the lever, to which the power is applied, which 

 raises B, by means of a kam-wheel. X, is the rod by which the 

 pinion I, is raised. W, a weight attached to I, to assist its move- 

 ment. 



The method of pressing is this : — The piston B, is suffered to 

 sink as low as the kam-wheel will permit it. By pushing up the 

 rod X, the mould H, is slipped upward upon C, and leaves a space 

 between B and C, sufficiently large to admit the brick. After the 

 brick is placed, the rod X, is pulled down, which brings the mould 

 H, over the brick. The foot is then placed upon F, which brings 

 up the piston B, and thus presses the brick. 



This machine is simple and cheap in its construction. The only 

 objection that we see to it, is, the liability of the piston B, to press 

 against the sides of the pieces, through which it slides, and thus 

 cause too much friction. This will, however, perhaps be entirely 

 obviated, by extreme care in placing the point of pressure exactly 

 10 Vqu. I. 



