More from early issues of The Engineer
The Brandt Hydraulic Rock Drill
(Photo from The Engineer, 24 Feb 1905 issue, p 189, schematic - below - from p 188 ibid).
Brandt Hydraulic Rock Borer
1905 saw the final stages in the construction of the first of the Simplon Tunnels, to be opened in 1906, drilling courtesy of Brandau and Brandt. The rock drill shown above is the kind of machinery being used all over the world at that time. There was a certain amount of Drill Fever going on.