Milliampere. to Minimum speed
dead smooth. Used for lathe work, draw filing, etc.
Milliampere..(Elec.) One thousandth of an ampere.
Millihenry. (Elec.) One thousandth of a henry.
Mill -meter. (Engin.) One thousandth of a meter is equal to .03937 in. Milling. (Shopwk.) The process of operating a milling machine.
Milling cutters. (Mach.) All those various types of rotary cutters designed for use on a milling machine.
Milling machine. (Shopwk.) A machine in which the operating tool is a revolving cutter. It has a table for carrying work and moving it so as to feed against the cutter.
Milling machine, universal. (Shopwk.) The worktable and feeds are so arranged that all classes of plane, circular, helical, index, or other milling may be done. It is equipped with index centers, chuck, etc. Milling achine, verrical. (Shopwk.) It differs from the horizontal machine mainly in having a vertical spindle for carrying the cutter.
Millivolt. (Elec.) One thousandth of a volt. 0.00 I volt.
Millwork. (Woodwkg.) The finished woodwork, machined, and partly assembled at the mill.
Millwright. A mechanic who installs machinery in a mill or shop.
Mimeograph. An apparatus in which a thin paper, coated with paraffin, is used as a stencil to reproduce copies of writing or typewriting.
Minaret. (A rch.) A slender, towerlike, structure as on a mosque.
Mineralogy. The science relating to the properties, classification, etc.,of minerals.
Mineral wool. (Engin.) A fiber made by sending a blast of steam through molten slag or rock. It is widely used as a heat insulator. Miner's safety lamp. (See Davy safety lamp.)
Minimum. The least quantity or amount; the lowest point or amount reached or registered; lowest or least.
Minimum flying speed. (Aero.) The lowest steady speed that can be maintained, with any throttle setting whatever, by an ai"rplane in level flight at an altitude greater than the span of the wings.
Minimum gliding angle. (Aero.) The acute angle between the horizontal and the most nearly horizontal path along which an airplane can descend steadily in still air when the proper11er is giving no thrust.
Minimum speed. (Aero.) The lowest speed at which an airplane can maintain flight.
Minning to Miter wheel
Mining. The process of extracting minerals from the earth.
Mining engineer. An engineer whose duties include the opening and working of mines and the extraction of metals from their ores.
Minion. (Print.) A type size about equal to 7 point. The name was used prior to the establishment of the point system.
Minor. Nonessential; nol vital or weighty; inconsiderable.
Minor axis. The short diameter of an ellipse.
Minor diameter. (screw threads)
(Mach.) The smallest diameter of the thread on a screw or nut.
Minus charge. (Elec.) A negative charge indicated by the minus sign. Such electrification as is developed on a resinous substance when rubbed with fur or flannel.
Minute. (Arch.) A measure used by architects to determine the proportions of a column, or order. It is the sixtieth part of the lower diameter of a column.
Misalignment of wheels. (Auto.) Wheels not in proper alignment make a car hard to steer, cause excessive strain throughout the car, and bring about very rapid wear on tires. Front wheels should be tested for alignment at least once or twice a year.
Mismatched lumber. Pieces of worked lumber that do not fit tightly at all points of contact, or in which the surfaces of adjoining pieces are not in the same plane.
Misprint. (Prillt.) To print incorrectly. Any typographical error.
Mission type. (Mall. Arts) Furniture, usually of oak, finished in rather dark tones. Characterized by straight lines rather than curves; frequently massive in structure.
Miter. The joining of two pieces at an evenly divided angle, as the corner of a picture frame. (Carp.) To match angles; a cut made at an angle for a joint.
Miter box. A device used as a guide in sawing miter joints.
Miter cut. (Woodwkg.) A cut made at an angle of 45 deg. So that two pieces similarly cut wiIl form a right angle when joined.
Miterer. (Print.) The hand- or poweroperated device used for mitering borders, rules, leads, etc.
Miter gear. (Mach.) A bevel gear whose pitch cone is placed at an exact angle of 45 deg. with its axis. Pairs of miter wheels. working together are always of equal diameter, pitch and number of teeth.
Mitering. (Cabwk.) The act of joining by the use of miter joints.
Miter plane. (Carp.) A plane used with a miter board, or for general utility in angle and butt-joint making.
Mitersaw cut, or miter-sawing board; (Carp.) An appliance used to guide the saw at the desired angle.
Miter square. (Carp.) A tool similar to the try square, but having a head which permits the laying out of both 90-deg. and 45-deg. angles.
Miter wheel. A bevel gear wheel in which the line of the pitch cone makes an angle of 45 deg. with the axis of wheel. Two such gears meshed together co.nnect shafts
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