Dorchester Illustration no. 2497 Mason Regulator Company interior
Note: Dorchester Historical Society program to be presented through Zoom has been scheduled
for Sunday, February 21, at 2 pm. Historian Kerri Greenidge will speak about her book Black Radical: The Life and Times of William Monroe Trotter.
If you want to attend, email Earl Taylor at earltaylordorchhistsoc@gmail.com, and he will send a link for the Zoom meeting.
The Mason Regulator Company was located in Lower Mills, in the building where Standish Village is now.
caption to photo: Part of our assembly room showing testing apparatus and material for Navy Department ready for final inspection and test. Mason Regulator Company, Dorchester Center, Boston, Massachusetts. Photograph by Curtiss Photographers, Boston, Mass., from the years of the first World War.
illustration comes from Naval History and Heritage Command
The Mason Regulator Company produced machine parts, i.e., speed and pressure regulators, balanced valves, and steam traps. The company moved from Jamaica Plain to Lower Mills in 1898 establishing itself as a new industry in the Lower Mills area. The company’s products were used in steamships, railroad engines, automobiles and manufacturing facilities.
The products were portions of a steam pressure regulator system. The purpose of the system is to keep a constant amount of pressure in a steam pipe supplying steam to an engine, compensating for variations due to the intermittent shoveling of coal into the boiler or heavy usage of steam by another machine sharing the same supply etc.
The Mason Regulator Company was known for constructing the first engines to be used in the legendary Stanley Steamers.