US Patent: 1,424,625 - Rotary Glass Cutter


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US Patent: 1,424,625

Rotary Glass Cutter

Patentee:

Carl F. Doerr (exact or similar names) - Yonkers, NY

USPTO Classifications:

33/27.03

Tool Categories:

knives and cutters : glass cutters

layout tools : compasses

Assignees:

None

Manufacturer:

Not known to have been produced

Witnesses:

Edw. Thorpe

Hugh H. Alt

Patent Dates:
Applied:	Jan. 14, 1922
Granted:	Aug. 01, 1922

Patent Pictures:

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Description:

This is an improvement to his earlier patent (1,421,921 - 7/4/1922) that features a better adjuster for the head.

Note that this design is very similar to the much earlier Rowland patent (#396,600), which was also produced in the same area. It is not known if these two patented tools are related.