AMERICAN INSTITUTE. 



149 



is a top view of figures 1 and 2. A A is the vessel; B the cast 

 iron dust, chips, etc.; C the vessel cover; D the slots in the edge 

 of the cover; E the projections which hold down the cover after 

 passing through the slots D; F is the perforation through the 

 central portion of the vessel; G G are the studs cast on the cover 

 to turn it around so as to ketch under the projections E, to confine 

 the turnings, dust, etc. 



By this process the value of cast iron shavings, turnings, etc. 

 compared with old machinery castings is 85 per cent. When iron 

 is worth $1.00 per hundred pounds, shavings are worth 85 cents 

 per hundred, or $17.00 per tun. 

 The cost of preparing vessels for cupola, including moulding, 



dressing and filling, each, _ 10 cents. 



Waste on vessel, and general expenses, each, 5 " 



Total, 15 " 



From the contents of each vessel will be produced on an aver- 

 age nearly one hundred pounds of metal. [Ji diploma awarded. 



Wilder''s Sole Cutfirig Machine. 

 Fames and Hathaway, Milford, Mass. 



The advantages of 

 this machine are : 

 1st. Its simplicity 

 of construction 

 makes it less liable 

 to get out of order, 

 and is positive in its 

 motion. 2d. It will 

 cut any size, Irom 

 men's down to the 

 smallest size of 

 youths', with two pair of knives. 3d. It can be altered to cut 

 soles from right and left, in a quarter of a minute. 



[A silver medal awarded. 



Portable Steam Cross Cut Saws and Portable Farm Engines. 

 Forest Agricultural Steam Engine Co., Brooklyn, L. I. 



A portable tubular steam boiler detached from the engine and 

 mounted on a pair of iron cart wheels five feet in diameter, with 



