ISOMETRIC; ISOMETRICAL a.
ely to three rectangular axes, are equal to one another. This kind of projection is principally used in delineating buildings or machinery, in which the principal lines are parallel to three rectangular axes, and the principal planes are parallel to three rectangular planes passing through the three axes.…
KNIFE n.
ifferent forms and names for different uses; as, table knife, drawing knife, putty knife, pallet knife, pocketknife, penknife, chopping knife, etc.
LARAMIE GROUP n.
An extensive series of strata, principally developed in the Rocky Mountain region, as in the Laramie Mountains, and formerly supposed to be of the Tertiary age, but now generally regarded as Cretaceous, or of intermediate and transitional character. It contains beds of lignite, often valuable for coal, and is hence als…
LATIN a.
ven to certain nations, esp. the French, Spanish, and Italians, who speak languages principally derived from Latin. Latin Union, an association of states, originally comprising France, Belgium, Switzerland, and Italy, which, in 1865, entered into a monetary agreement, providing for an identity in the weight and finenes…
LEAD n.
The action of a tooth, as a tooth of a wheel, in impelling another tooth or a pallet. Saunier. Lead angle (Steam Engine), the angle which the crank maker with the line of centers, in approaching it, at the instant when the valve opens to admit steam. -- Lead screw (Mach.), the main longitudinal screw of a lathe, which…