98" 



[Assembly 



WROUGHT IRON PLANING CYLINDER. 



Mr. J. T. Bruen, of Hastings, N. Y., exhibited specimens of ma- 

 chinery of very superior workmanship, among which we would 

 particularly notice a Planing Cylinder, made of wrought iron, and 

 well constructed for the easy and perfect adjustment of the cut- 

 ting edges or knives. The surface of boards or other stuff planed 

 by this cylinder, as shown to us, was of extraordinary smoothness. 



A stone saw, and other implements from the machine shop of 

 Mr. Bruen, gave evidence of the greatest perfection in mechanism. 



A. c. 



DOVETAILING MACHINE. 



Mr. Ari Davis exhibited a machine for accomplishing the pur- 

 pose of dovetailing. It consists of two saws and a revolving cut- 



ter when required, which are thus arranged : One saw accurately 

 cuts the mitre, the other cuts a groove at any required distance 

 from the end of the mitred stuff, on the outside, from top to bot- 

 tom, into which one edge of a metallic plate is to be inserted. 

 Now, when two ends of the mitred stuff are brought together, 

 forming one corner of the box, the metallic plate, which may be 

 a strip of plate brass bent longitudinally at right angles, with its 

 terminating edges bent inwards, which edges are inserted in the 



