chamber, B, screwedinside it; a dial, C, and index hands appearon the outside of B, and a door or lid, likethat of a watch, D, closes it up water-tightand dirt tight. The operation of the odo-meter is derived from the gravity of a weight,E, which is of curved form, and as it is con-nected to an… … dial; E remaining stationary. To the centerof the end of F, where it is pivoted to thegearing, a small ratchet wheel is attached,and this by a pawl and spring that tends al-ways to keep the pawl in the teeth, preventsthe weight from registering when the vehicleis backed. This little piece of…
Claim · Patents · Combination · Manner · Patented · Purpose · Arranged · Cold water · Water cask · Purposes set · Impression sheet · Purpose set · York city · Twelve months · Patent office · Scientific American · Vast number
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