A carpenters boring machine is a hand-driven machine used to bore holes in beams, such as in the process of cutting a mortise or drilling the holes for the wooden pegs that hold a mortise and tenon joint together.
Facts
Introduced When (Circa)1830 (earliest known patent, filed in the United States by J. Beckwith) 1 OriginBefore boring machines, carpenters bored holes by hand with T-handled augers; the spiral or twist auger bit that let a machine clear its own cuttings as it turned was invented in 1771, the advance that made a dedicated boring machine practical. 1 Introduced era (class) Connections
Used In
Source Boring machine (carpentry) (Wikipedia)
In the Other Atlases
Era Of Origin
Also in History Atlas: the era this subject comes from.
Sources
1. Boring machine (carpentry) (Wikipedia)
Wikimedia FoundationHistory section, fourth sentence
the earliest patent is in the United States in 1830 by J. Beckwith
History section, third sentence
the invention of the spiral or twist bit in 1771 which removes the cuttings as it turns
Used In: Woodworking, Lead section
A carpenters boring machine is a hand-driven machine to bore holes in beams
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