Manufacturers Index - J. C. Hoadley Co.
J. C. Hoadley Co.
Lawrence, MA, U.S.A.
Manufacturer Class:
Steam and Gas Engines
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.
|
134,548
|
Jan. 07, 1873
|
Check-Valves
|
John C. Hoadley |
Lawrence, Essex County, MA |
|
|
143,574
|
Oct. 14, 1873
|
Dead-Lights for Steam-Boilers
|
John C. Hoadley |
Lawrence, Essex County, MA |
|
|
144,098
|
Oct. 28, 1873
|
Governors for Steam-Engines
|
John C. Hoadley |
Lawrence, Essex County, CT |
|
|
148,560
|
Mar. 17, 1874
|
Governors for Steam-Engines
|
John C. Hoadley |
Lawrence, Essex County, MA |
Claim:
In several respects the governor is like that shown and described in the specification and drawings of Letters Patent No. 144,098, dated October 28, 1873, with which the valve-eccentric has of necessity to be arranged in close proximity with the flywheel and governor.
One object of my present invention is to enable me to dispose of the eccentric at a greater distance from the fly or band wheel, or as circumstances may require, thereby saving the necessity of placing the two in close proximity. |
|
161,122
|
Mar. 23, 1875
|
Steam Boiler Furnace
|
John C. Hoadley |
Lawrence, Essex County, MA |
|
|
164,942
|
Jun. 29, 1875
|
Governor for Steam Engines
|
Gardiner C. Sims |
Lawrence, Essex County, MA |
|
|
164,917
|
Jun. 29, 1875
|
Governor for Steam Engines
|
John C. Hoadley |
Lawrence, Essex County, MA |
|
|