What was the first underground mobile drilling rig?

Atlas’s BUK 21 K became its first underground mobile drilling rig in 1952. Multi-boom rigs, like this early example from the 1950s, allowed a tunneling worker to operate several rock drills at the same time. This rig’s drills crawled forward on a ladder feed instead of using a pusher leg.

What did Rand drills do in New York City?

Rand drills cleared New York's treacherous Hell Gate channel and were used in the construction of water aqueducts for New York City and Washington, D.C., as well as tunnels in Haverstraw and West Point, New York, and in Weehawken, New Jersey. In 1905, Ingersoll-Sergeant Drill Company merged with the Rand Drill Company to form Ingersoll Rand.

When did a Bob drill come out?

This ad for Atlas rock drills appeared in the U.S. in the 1950s. (Photo copyright Atlas Copco.) The BOB’s replacement appeared in 1930 as the RH-70, designed by engineer Gustaf Andersson. It was a lightweight, handheld drill designed for hard rock.

What drill rigs does Atlas Copco sell?

At present, Atlas Copco sells new surface and mining drill rigs under the Epiroc brand. Its range of down-the-hole, tophammer, and COPROD surface drill rigs include automated SmartROCs, versatile FlexiROCs, and stout PowerROCs, along with the pneumatic AirROC series.

What rigs did Atlas use?

It also introduced a coal mining drill called the RH-754, which gained the company much market share. Atlas’s BUK 21 K became its first underground mobile drilling rig in 1952. Multi-boom rigs, like this early example from the 1950s, allowed a tunneling worker to operate several rock drills at the same time.