S WAGON JACK. The annexed engraving represents a simple and inexpen- tion of which is a piece of wick which may be adjusted from sive form of wagon or lifting jack, which is applicable to all the filling orifice, H, to allow the oil to flow to the wick kinds of vehicles. chamber faster or slower,… … base of the lantern is a series of holes connecting with the 1. There isa large drum above the fire, surrounded by a hollow space, I, for purposes of ventilation. jacket so arranged that a constant supply of fresh air may Patented through the Scientific American Patent Agency, be continuously…
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