The McLaughling Manufacturing Co. made steam tractors and steam traction engines
Among the fantastic photos Ed McLaughlin sent for this issue's story on the McLaughlin Manufacturing Co. was this blueprint of a McLaughlin steam traction engine as drawn by company founder Dennis W. McLaughlin. No date appears on the blueprint, but it is presumed to date from sometime around 1902 as we can find no mention of the company prior to that time.
A 60 HP McLaughlin steam traction engine pulling what appears to be a road grader, circa 1905.
Written in light pencil on the mat backing of this photo are the words "out chain." Note the large selection of chains in the lower left of the photo) Judging by the coke cars this Mclaughlin is pulling, it's probably safe to assume it was employed in the mining industry.
"Lumber Halling (sic) in the Sierras." This type of work appears to be what McLaughlin tractors did best, as few surviving photos show them working the land. Note the headlamp fashioned over the front wheel.
A transformer in transit, although possibly at a different location.
At bottom contains the notation, ''transformer, weight 12-tons.''
The cover from a McLaughlin product catalog thought to date from around the 1906 to 1907 period. After the disastrous San Francisco earthquake of 1906, McLaughlin, who had been based in San Francisco, moved his operations across the bay to Berkeley.
An advertisement from the Nov. 14, 1903 edition of Mining and Scientific Press.
Copy of Dennis W. McLaughlin's 1903 patent for a ''steering wheel for traction engines.''
A McLaughlin tractor in the field pulling 40 plows cutting 33 feet wide. The catalog claimed a cost of 22 cents an acre with this arrangement.
Ed McLaughlin, grandson of tractor manufacturer Dennis McLaughlin, poses with the only known surviving McLaughlin in McArthur, Calif.
From the McLaughlin catalog, a McLaughlin tractor engaged in lumber hauling and loading.
A photo from the McLaughlin catalog showing mechanical details of a McLaughlin tractor. Unfortunately, no specifications are given.