AMERICAN INSTITUTE. 



9T 



by steam, water, or horse power (which is practicable in some cases), and can be 

 taken apart in twenty minutes, ready to move from place to place. 



4th. With this machine five and six inch clapboards are sawed from any kind of 

 lumber that is seven inches in diameter, or larger. 



5th. Feather edged "siding " can be sawed of any width or thickness 



6th. The operator has perfect control over the carriage, and with one shipper 

 handle causes it to move forward or backward, or lets it stand still, or leaves it 

 free from gear, so that it can be moved by hand. There is no steel nor iron spring 

 on this machine. 



7th. The dogs can be thrown back within five-eighths of an inch of the head- 

 block, so that a two-inch plank can be held and split in the centre, or they can be 

 instantly thrown out so as to hold a crooked log. The same dogs can be brought 

 within sixteen inches of the dog in the centre of the head-block, or extended to 

 the ends, according to the length of blocks or logs to be sawed. The central dog 

 is entirely out of the way when not wanted, but can be instantly thrown out, and 

 two blocks or logs be held at a time between it and the end dogs. The feed can be 

 varied while the machine is in operation. 



8th. The saw arbor is so constructed that the saw can be removed, and a thin 

 saw with a large collar on the back side, suitable to saw veneers, can be put on in 

 five minutes; or this may be removed and a cutter head put on, and then the ma- 

 chine is a side-planing machine, all ready to plane square, beveling, or tapering. 



The smallest mill, which takes a log four feet long or less, with 34-inch saw, all 

 complete, ready for use (except the driving belt), is $450.00, and $10.00 for each 

 additional foot. Weight of four foot mill, 2,400 lbs.; each additional foot will 

 weigh about 300 lbs. 



The mill can be belted from below or above, or horizontal directly from the 

 engine to the arbors. [A large silver medal awarded. 



Ross'' Improved Conical Burr Stone Mill. 

 Chas. Ross & Co., 211 Centre street, N. Y. 



This mill consists of a solid cone runner of French burr stone, revolving on a 

 horizontal shaft within a concave, composed of burr stone, firmly set within a cast 

 iron shell, the grindmg surfaces being, with exactness, fitted to each other. 



A represents the head plate, secured to the concave by screw-bolts. 



B, the concave, secured to the cast iron frame T>, by screw-bolts. 



0, the journal hopper (this is not to be unscrewed from the concave). 

 [Am. Inst.J 7 



