She Srientific American. 328 spring-stop, and the door can be opened. When it is a contrary direction to its he regards a strong depo- fellow. This plan is costly — — sition of soot on wheat and and troublesome, for many = … SHAW’S REVERSING GEAR FOR COUNTER-SHAFTS. A, to revolve in an oppos- 1-800,000th is injurious to ite direction. When the vegetation in wet weather pulley, B. The shaft, A, has a spring Journal of Science, the following in- stop at H, which catches in recesses teresting account of the condition of…
Internet Archive · Public domain (published before 1931). Free to use for anything.
