This patent was an improvement on Day’s earlier patent (9692x) of June 2, 1836, which was destroyed in the 1836 fire and reconstructed by the Patent Office for the Columbian Exposition of 1893.
The difference between the two patents is the addition of a gauge-plate to the end of the machine, by which it became a strandmaker. Day stated that his method of making cordage had two advantages over those in common use. First, the twist given to the strand was uniform throughout its length. Second, as the cord was made, it was wound on a bobbin, thereby eliminating the need for long rope walks and large buildings. The whole process could be done in a room that was only slightly larger than the cordage machine and the bobbin frame.
