| http://www.w3.org/ns/prov#value | - June 387 What I claim as my invention..is the combination of the bearer and rack-wheel,..worked by the dogs in such a manner as to change the pressure alternately from the bearer to the feeder.1867 U.S. Patent 71,409 1 This wheel is constructed in the usual manner, with this exception, that the hub is fitted with a dog or adjustable cam...
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