Woodwork for secondary schools; a text-book for high schools and colleges, prevocational and elementary industrial schools (1916)
Griffith, Ira Samuel, 1874-1924 · Peoria, Ill., Manual Arts Press · leaf 114
Fig. 177. Jointing Circular Saw Teeth. revolve at low^ speed, and then pushing a block of emerygently against the teeth, Fig. 177. Repeat until all theteeth project uniformly. (3) After a saw has been filed … Fig. 178. Gumming Circular Saw. many times the teeth become too short to do their workwell. The process of grinding out the gullets is calledgumming. Gumming is done by holding the saw suc-cessively against an emery-wheel of proper bevel, Fig. 178. no IVOODJVORK FOR SECONDARY SCHOOLS. Care must be…
Woodwork (Manual training)
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