Breast drills
AssigneeThe Jabobs Manufacturing Company, Ltd.
InventorGeorge C. Derbyshire
Life of this patent
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Abstract
A breast drill including a casing of elongate hollow form containing gearing for transmitting drive to a drill chuck, and a grip handle connected to the casing and capable of angular adjustment around the casing so that it can be located at a required position in relation to the position of a crank handle which can be turned to transmit drive to the chuck.
Claims4
In a breast drill, a casing of elongate hollow form containing gearing for transmitting drive to a drill chuck, a crank handle which can be turned to transmit drive to the drill chuck, a pistol grip handle connected to the casing and being capable of angular adjustment around said casing so that it can be located at a required position in relation to the position of the crank handle, and a sleeve-like extension rotatably mounted on the end of the casing remote from the drill chuck and the pistol grip handle is formed integrally with said extension.
Dependencies are inferred from the claim text.