This is a pretty straightforward improved mold. The patent was assigned to the Ludlow Typograph Company, but I'm not sure that such a mold was ever offered. It might have been difficult to accomodate in a conventional Elrod machine because it is of variable width.
The mold basically has two characteristics: (1) It is of variable width (and intended to allow width alteration in the field, as opposed to the conventional practice of using a separate factory-assembled mold for each strip width). (2) It employs water cooling integral with the mold itself (not the mold housing, as in the regular Elrod).
The patent also specified a taper for the internal mold channel. No such taper is mentioned in earlier Elrod patents, and I'm not sure whether or not it was present on actual Elrod molds.
This is a single-file PDF version of this patent created from full-resolution but lossy JPEG conversions of the original USPTO page scans. (8.1 Megabytes)
These are full resolution lossless PNG conversions of the original USPTO TIFF page scans.
US patent documents are in the public domain. The PDF and PNG versions of them here are similarly in the public domain; I assert no additional rights on these versions.
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