Home| FAQ Search:Advanced|Person|Company| Type|Class Login
Quick search:
Patent number:
Patent Date:
first    back  next  last
US Patent: 99,212
Improvement in clamp
Patentee:
Jacob S. Ladow - Mechanicsville, NY

USPTO Classifications:
269/221, 269/240

Tool Categories:
work holding : clamps

Assignees:
None

Manufacturer:
Rowley & Hermance Co. - Williamsport, PA

Witnesses:
Orville D. Vaughn
John A. Wiedersheim

Patent Dates:
Granted: Jan. 25, 1870

Patent Pictures: [ 1 | 2 | 3 ]
USPTO pdf tiff
Google Patents
Report data errors or omissions
"Vintage Machinery" entry for Rowley & Hermance Co.
Description:
An example of this patent is seen in the January 1894 Manning, Maxwell & Moore catalog, page 532. There is no maker's name but the patent date is clearly legible. We found a later version in a 1925 Yates-American catalog and then in a 1905 Y-A catalog where it was labeled as the "R & H Special Heavy Door Clamp". On page 34 of the 1882 Rowley & Hermance catalog is the same artwork as in the MM&M catalog except that the right side casting has the words "LADOW'S PAT. / ROWLEY & HERMANCE MNFRS / WILLIAMSPORT".

Copyright © 2002-2017 - DATAMP