OF OHIO 



101 



stock, usually desired for patterns, long- ago created a demand for a 

 substitute, but so far none have been found thoroughly practical. 

 It is quite surprising to 'note the small quantity of western white 

 pine called on for patterns, that is the true white pine cut in the 

 Rocky Mountain states, and the large amount of sugar pine used 

 which in most of its qualities closely resembles the white pine. When 

 durable patterns are required to stand the wear, like those tha tare 

 used over and over again, a harder wood than white pine, not liable 

 to warp or check, is adopted. Mahogany, cherry and butternut are 

 the most widely used. When this kind of pattern is quite large, the 

 entire pattern is not made of the expensive wood, only the outside, 

 the filler being of a cheaper wood like white pine, yellow poplar, 

 basswood or red gum. Sugar maple in many of its qualities is a 

 suitable hardwood, but owing to its tendency to shrink and curl its 

 use is limited to only small quantities. 



The material upon which the pattern rests before being removed 

 from the flasks is called templets. Like the flasks, lower grades of 

 lumber are required for these than are used for patterns, and in 

 Ohk) white pine and yellow poplar answer for this purpose. 



TABLE LXIV. Patterns and flasks 



PULLEYS AND CONVEYORS 



Belt pulleys have a number of parts, but only two woods, yellow 

 poplar and sugar maple, were called on to supply the material. The 

 former answered for the rim pieces and the latter for hubs and 

 braces. The rope pulley is a one-piece product, and hard maple 

 and beech, the first in larger quantities, were the woods reported. 



