Adjusting and Locking Device for Skid Chains. (open access)

Adjusting and Locking Device for Skid Chains.

Patent for anti-skid chains for use on automobile wheels and tires which may be locked to prevent slipping.
Date: February 26, 1918
Creator: Boyd, James S.
System: The Portal to Texas History
Treadle Power. (open access)

Treadle Power.

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).
Date: February 26, 1884
Creator: Greene, George A.
System: The Portal to Texas History
Wheel-Scraper. (open access)

Wheel-Scraper.

Patent for a scraper to be mounted on a vehicle for the purpose of removing mud from a wheel. Includes instructions and illustrations.
Date: October 26, 1897
Creator: Gray, John B.
System: The Portal to Texas History
Plow. (open access)

Plow.

Patent for a plow. This invention relates to an improvement in plows, and more particularly to the means for securing the share to the plow.
Date: January 26, 1892
Creator: Hyer, Robert Stewart
System: The Portal to Texas History
Rack for Holding and Exhibiting Rolls of Goods. (open access)

Rack for Holding and Exhibiting Rolls of Goods.

Patent for a new and improved rack. This design consists in "[t]he rack comprising the sills, the crossed bars secured thereto and to each other at their intersecting parts and forming triangular sides, said crossed bars having the projecting ends, the cross-slats connecting the crossed bars and arranged in the angles thereof, and the extension comprising the inclined bars, the short crossed bars secured at right angles thereto, and the slats connecting the bars at the angles formed thereby, the said bars being detachably bolted to the projecting ends of the inclined bars of the rack" (lines 16-28).
Date: August 26, 1890
Creator: Chapman, Luna F. & Montgomery, James A.
System: The Portal to Texas History
Acetylene-Gas Generator. (open access)

Acetylene-Gas Generator.

Patent for a new and improved acetylene gas generator, including instructions and illustrations.
Date: December 26, 1899
Creator: Walters, Loren B.; Davis, Will H. & Hawkins, Augustus L.
System: The Portal to Texas History