https://www.datamp.org/ Recently added patents en-us https://www.datamp.org/patents/displayPatent.php?id=19196&pn=284,081 Saw-mill set-works Patentee: William H. Snyder - Waynesboro, Franklin County PA Granted:1883-08-28

Abstract: My invention relates to an improvement in sawmill head-blocks designed to enable the sawyer to move the knees forward or backward without releasing his hold upon the handle-rod and without any change in his position. Claim: The rigid sliding bar H, with laterally-projecting pin, in combination with the reversely-acting pawls pivoted or jointed to the lever, the toothed wheel operated upon by said pawls, the vibrating lever, the connecting-rod e, for actuating the sliding bar H, and means for vibrating the lever.
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