ated than vertical sides, if this extra vented the machine which is represented in our en- there is one press in this city capable of printing the weight of metal be given in thickness to vertical graving. It consists of a short wooden bench, A, seven colors at one operation ; how correct this… … volving from the work- color-rollers are at either 'ALPEY’S PATENT SAW BENCH. man instead of toward end of the platen and him, as is usually the case. The operation of this arc actuated similarly to other rollers. The paper tained. The resisting force of a plate is in propor- tion to its thickness…
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