Patent for anti-skid chains for use on automobile wheels and tires which may be locked to prevent slipping.

Patent for a new and improved treadle power. This design "consists of a pair of treadles contrived [so] that the operator may stand erect and operate the machine . . . together with contrivances whereby the operator may at the same time apply the power of the hands and arms to assist the legs when greater power is required, and for relief of the legs when less power is required. By enabling the operator to stand erect and apply the weight of his [or her] body to the treadles by a natural walking motion . . . he [or she] can apply greater power and continue a longer time with less fatigue" (lines 7-20).