Found 1 items, similar to Geometric lathe.
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Definition: Geometric lathe
, Geometrical \Ge`o*met"ric*al\
, a. [L.
geometricus; Gr. ?: cf. F. g['e]om['e]trique.]
1. Pertaining to, or according to the rules or principles of,
geometry; determined by geometry; as, a geometrical
solution of a problem.
2. (Art) characterized by simple geometric forms in design
and decoration; as, a buffalo hide painted with red and
black geometrical designs.
Note: Geometric is often used, as opposed to algebraic, to
include processes or solutions in which the
propositions or principles of geometry are made use of
rather than those of algebra.
Note: Geometrical is often used in a limited or strictly
technical sense, as opposed to mechanical; thus, a
construction or solution is geometrical which can be
made by ruler and compasses, i. e., by means of right
lines and circles. Every construction or solution which
requires any other curve, or such motion of a line or
circle as would generate any other curve, is not
geometrical, but mechanical. By another distinction, a
geometrical solution is one obtained by the rules of
geometry, or processes of analysis, and hence is exact;
while a mechanical solution is one obtained by trial,
by actual measurements, with instruments, etc., and is
only approximate and empirical.
. Same as Algebraic curve
; -- so called
because their different points may be constructed by the
operations of elementary geometry.
, an instrument for engraving bank notes,
etc., with complicated patterns of interlacing lines; --
called also cycloidal engine
, a measure of five feet.
, an instrument for drawing geometric curves,
in which the movements of a pen or pencil attached to a
revolving arm of adjustable length may be indefinitely
varied by changing the toothed wheels which give motion to
(Persp.), the same as Ground plane
. See under
, in gearing, the radius of the pitch
circle of a cogwheel. --Knight.
(Zo["o]l.), one of many species of
spiders, which spin a geometrical web. They mostly belong
and allied genera, as the garden spider. See
, a portable instrument in the form of a
square frame for ascertaining distances and heights by
, one in which the stairs are
supported by the wall at one end only.
, in architecture and decoration,
tracery arranged in geometrical figures.
(l[=a][th]), n. [OE. lathe a granary; akin to G.
lade a chest, Icel. hla[eth]a a storehouse, barn; but cf.
also Icel. l["o][eth] a smith's lathe. Senses 2 and 3 are
perh. of the same origin as lathe a granary, the original
meaning being, a frame to hold something. If so, the word is
from an older form of E. lade to load. See Lade
1. A granary; a barn. [Obs.] --Chaucer.
2. (Mach.) A machine for turning, that is, for shaping
articles of wood, metal, or other material, by causing
them to revolve while acted upon by a cutting tool.
3. The movable swing frame of a loom, carrying the reed for
separating the warp threads and beating up the weft; --
called also lay
, a lathe for turning irregular forms after
a given pattern, as lasts, gunstocks, and the like.
, or Speed lathe
, a small lathe which, from
its high speed, is adapted for drilling; a hand lathe.
, a turning lathe in which the cutting tool has
an automatic feed; -- used chiefly for turning and boring
metals, cutting screws, etc.
, a lathe which is driven by a treadle worked by
. See under Geometric
, a lathe operated by hand; a power turning lathe
without an automatic feed for the tool.
, an engine lathe.
, a small lathe worked by one hand, while the
cutting tool is held in the other.