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Of or pertaining to a cylinder



Related Terms

CYLINDER

  1. A solid figure having two parallel plane bases bounded by closed congruent curves, and a surface formed by parallel lines con- necting similar points on the two curves. 2. A surface formed by a straight line moving parallel to itself and constantly intersecting a curve. Also called CYLINDRICAL SURFACE.

CAN BUOY

An unlighted buoy of which the upper part of the body (above the waterline), or the larger part of the superstructure has the shape of a cylinder or nearly so. Also called CYLINDRICAL BUOY.

OBLIQUE MERCATOR MAP PROJECTION

A conformal cylindrical map projection in which points on the surface of a sphere or spheroid, such as the earth, are developed by Mercator principles on a cylinder tangent along an oblique great circle. Also called OBLIQUE CYLINDRICAL ORTHOMORPHIC MAP PROJECTION.

PERSPECTIVE MAP PROJECTION UPON A TANGENT CYLINDER

A cylindrical map projection upon a cylinder tangent to the ellipsoid produced by perspective projection from the ellipsoid’s center. The geographic meridians are represented by a family of equally spaced parallel straight lines, perpendicular to a second family of parallel straight lines which represent the geographic parallels of latitude. The spacing, with respect to the equator of the lines which represent the parallels of latitude, increases as the tangent function of the latitude; the line representing 90° latitude is at an infinite distance from the line which represents the equator. Not to be confused with MERCATOR MAP PROJECTION to which it bears a general resemblance.

LAMINAR FLOW

Laminar flow described as a series of liquid cylinders in the pipe enclosed in each other, where the innermost parts flow the fastest, and the cylinder touching the pipe is steady. Re < 2300 (Reynolds number)

PITCH DIAMETER

The diameter of an imaginary cylinder equal to half the depth of the thread, it is the basic diameter for rolling threads.

BOILER DRUM

A cylindrical shell closed at both ends, designed to withstand internal pressure.

CUSHIONED CYLINDER

An air cylinder which will slow down the speed of the piston at the end of its stroke. Prevents shock and damage to cylinders.

TUBE

A hollow cylinder for conveying fluids.

HYDRAULIC MOTOR

A hydraulic actuator of rotary type. Has a cylindrical cartridge with several hydraulic cylinders which rods linear movement converted into shaft rotation. Direction of shaft rotation depends on sequence of working cylinders activation.

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