Annual report of the State Mineralogist for the year ending ... (1883)
California State Mining Bureau · Sacramento : California State Mining Bureau · leaf 33
flaring outwardsat each end. The cocks or valves which regulate the supply of oil and steam to theburners are peculiar in construction. By reference to Figure 3 it will beseen that in each case the valve-stem projects a short distance beyond thevalve-seat into the pipe leading to the burner; and… … 27
California State Mining Bureau · Mines and mineral resources · Gold mines and mining · Geology · Mineralogy
Internet Archive Book Images · University of California, Davis Libraries · No known copyright restrictions (public domain). Free to use for anything.
