Resource Type

Whiffletree. (open access)

Whiffletree.

Patent for a new and improved whiffletree. This design utilizes a removable eye and removable rings, so "when [they have] become worn [they] may be removed and [others] substituted, thus prolonging the usefulness of the single tree for years" (lines 48-51).
Date: October 5, 1880
Creator: Miller, Rudolph A.
System: The Portal to Texas History
Car Window Lock. (open access)

Car Window Lock.

Patent for a new and improved car-window lock. This design consists in "the sliding crank-shaped spring-actuated bolt for locking the window, in combination with the oscillating cam acting upon the bolt to unlock it, said cam having a lateral arm with a spring-guide hinged thereto, a spring surrounding the guide, and means for swinging the cam and thus retracting the bolt" (lines 21-27).
Date: October 5, 1886
Creator: Cutter, Martin A.
System: The Portal to Texas History