Manufacturers Index - Crowe Manufacturing Corp.
Crowe Manufacturing Corp.
Cincinnati, OH, U.S.A.
Manufacturer Class:
Wood Working Machinery
This page contains information on patents issued to this manufacturer.
Submitting Patent Information
If you find a patent number or patent date by this manufacturer that is not on this
list, please contact the Site Historian.
Key to Links for Patent Information
USPTO = U.S. Patent Office .
Images of the actual patent can be viewed on the U.S. Patent Office web site but
a special TIFF viewer must be installed with your browser in order properly work.
More information on how to configure your computer to view these patents can be
found at TIFF image Viewers
for Patent Images.
DATAMP = Directory of American Tool And
Machinery Patents . A sister site to VintageMachinery.org with information
on patents related to machinery and tools. A much easier user interface than the
USPTO's for finding information on machinery patents.
|
1,540,388
|
Jun. 02, 1925
|
Portable saw
|
John M. Crowe |
Covington, KY |
This patent date was seen on a pneumatically-powered circular saw from Ingersoll-Rand Co. This patent date was also seen on a circular saw from Skilsaw, Inc.; the other patent dates on the saw spanned 1914 to 1925, "other patents pending".
An article in the May 1927 "Railway Engineering and Maintenance", page 218, describes Ingersoll-Rand Co.'s "New Air-Driven Portable Hand-Saw". The saw "consists essentially of an Ingersoll-Rand three-cylinder type air motor, a circular saw blade and a Crowe safety saw guard, together with suitable hand grips..." The saw was intended for cutting wood, soapstone, bakelite, wall-board, cable and copper. A variety of blades were available. The speed of cutting was claimed to be 20 times as fast as by hand-power. It was available in sizes to accommodate blade diameters of 6, 8 and 12 inches. |
|
1,644,326
|
Oct. 04, 1927
|
Portable motor-driven saw
|
John Marshall Crowe |
Kenton County, KY |
Subsequently improved in patent 1,780,174.
An example has been reported, labeled, "Stanley Safety Saw", and listing patent 1,830,350, patent 2,228,664 and patent 2,263,136. It was purchased in early 1947. This patent date was seen on a pneumatically-powered circular saw from Ingersoll-Rand Co.
The innovations in this patent are an improved arrangement of handles, an improved adjustable depth gauge, and an improved blade guard and lock. |
|
1,701,948
|
Feb. 12, 1929
|
Portable saw
|
John M. Crowe |
Covington, KY |
|
|
1,740,074
|
Dec. 17, 1929
|
Portable power handsaw
|
John M. Crowe |
Covington, KY |
Improvements to the inventor's patent 1,644,326 to provide an improved handle that also supports the fixed blade guard, plus other improvements to the guard. |
|