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.
|
445,110
|
Jan. 20, 1891
|
Gas Engine
|
Marcellus A. Graham |
San Francisco, CA |
Abstract:
My invention relates to certain improvements in what are known as, gas or explosive engines.
Claim:
In a gas-engine, a cylinder with a piston reciprocating therein and a means for supplying gas or explosive vapor to the interior of the cylinder, with inlet-valve, governor, and exhaust-valve, as shown, in combination with a spring-arm projecting into the cylinder and forming one electrode, a horizontal rotary shaft extending through the side of the cylinder explosion-chamber to form the other electrode and having its inner end slotted, a radial arm f, fitted to the slot, and a set-screw by which the arm is secured and its radial length is regulated with reference to the elastic electrode. |