\ 



THE 



NEW-ENGLAND 



FARMERS' AND MECHANICS' JOURNAL. 



Vol. I. GARDINER, AUGUST, 1828. No. 8. 



MHOHAXriCS. 



HOWE & PEARSON'S BOX MACHINE. 



TLATE VIII. FIG. 1. 



This machine consists of a large frame, in which are placed four 

 Circular Saws, which are moved by water-steam, or any other 

 power, usually employed for moving machinery. 



The first saw, near B, is employed for cutting the boards the 

 particular length required. The frame of this saw is so construct- 

 ed, as to move backward and forward, on a horizontal carriage. 

 This is effected by means of a rope, attached to the carriage, and 

 passing around an upright cylinder, which is turned by hand, by 

 means of the crank B. 



When the saw is wanted to slide forward, the rope is uncoiled, 

 by turning the crank — a lever with a pulley at the end, (shown at 

 H,) sometimes called a jack-pulley — presses upon the hand which 

 turns the saw, and keeps it upon the stretch. By turning the 

 crank the other way, the rope is coiled upon the cylinder, and the 

 saw is brought back to its original place ; the jack-pulley rising at 

 the same time by the drawing of the band upon it. Stops, or rests, 

 are placed at such distance from the saw, as you wish to have the 

 length of the board. These may be put in and out of place by 

 means of a lever, attached to them, and extending across the ma- 

 chine to the side, where the person who turns the crank, stands. 

 This lever is shown at N. 



The second saw at a, is employed for edging or splitting the 

 boards. There is nothing in this different from the common cir- 

 cular saw, excepting the gage carriage, into which the board is pnt. 

 !?2 V**r,. T, 



