sim-ple and easily applied device,which may be employed in anyof the machines now in use, andthe expense of which is a meretrifle in comparison toits useful-ness. Fig. 1 shows a portion of apitman and sickle bar connectedtogether, and having this im-provement attached. Fig. 2 isa sectional… … Pneumatic Tubes. The pneumatic tubewhich has been erectedby the Union TelegraphCo., connecting the offi-ces of that companywith the Chamber ofCommerce in this city,is found to be extreme-ly useful. The follow-ing is a brief descrip-tion of it: The tube ex-tends from the Merch-ants Insurance…
Patents · Iron · Consists · Assignor · Tho · Scientific American · Tube · Patent issued · Letters patent · Varnish room · Specific gravity · Tartaric acid · Sewing machine · Iron wire · Revolving disk · Gaseous fuel
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
