and small buildings on this plan, from action, the amount of pressure developed is only limited by plied to them in a similar manner to that shown in Fig. 6, the streno-th of tne material and the power applied. The two thirds to thraequarters of the wood usually employed which represents the mode… … erable weight in the center, when supported ingair through, or exhausting it from, pneu- ROTARY PRESSURE BLOWER. only by its ends. There is, consequently, no lia- matic dispatch tubes, etc. For further infor- Further information can be obtained by addressing the iu bility to " bag." mation, address…
Patents · Iron · Feet · Consists · Scientific American · Inches · Horse power · Air chamber · Waltham watches · Rake head · Gun cotton · Patent office · Wood working · Steam power · Three feet
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