Patent for a cattle-guard that improves on patents previously granted to the inventor (No. 516,307 and No. 501,785). The improvements include "the provision of a counter balance or lever with a weight slidingly thereon, which can be adjusted so as to better regulate the platform (lines 25-28) and perforated guards, which will not get as damaged by the wind as non-perforated guards. The patent also includes springs under the platform instead of springs under the sills.

Patent for a marine propeller which allows for "a reversal of the action of the wheel for propulsion in opposite directions or for turning the boat without changing the direction of rotation of the power-shaft."