PURCHASE n.
Any mechanical hold, or advantage, applied to the raising or removing of heavy bodies, as by a lever, a tackle, capstan, and the like; also, the apparatus, tackle, or device by which the advantage is gained. A politician, to do great things, looks for a power -- what our workmen call a purchase. Burke.…
PURSE n.
50 tomans. Light purse, or Empty purse, poverty or want of resources. -- Long purse, or Heavy purse, wealth; riches. -- Purse crab (Zoöl.), any land crab of the genus Birgus, allied to the hermit crabs. They sometimes weigh twenty pounds or more, and are very strong, being able to crack cocoanuts with the large claw…
QUICHUAN a.
with some wild tribes never subjugated by the Incas. Most of these Indians are short, but heavy and strong. They are brachycephalic and of remarkably low cranial capacity. Nevertheless, they represent one of the highest of native American civilizations, characterized by agricultural, military, and administrative skill…
RADIUM n.
alled radium emanation or exradio, radium A, radium B, radium C, etc. (The emanation is a heavy gas, the later products are solids.) These products are regarded as unstable elements, each with an atomic weight a little lower than its predecessor. It is possible that lead is the stable end product. At the same time the…
RAFTER n.
Originally, any rough and somewhat heavy piece of timber. Now, commonly, one of the timbers of a roof which are put on sloping, according to the inclination of the roof. See Illust. of Queen-post. [Courtesy] oft is sooner found in lowly sheds, With smoky rafters, than in tapestry halls. Milton.
ROLLING a.
ness or other quality of the surfaces in contact. -- Rolling mill, a mill furnished with heavy rolls, between which heated metal is passed, to form it into sheets, rails, etc. -- Rolling press. (a) A machine for calendering cloth by pressure between revolving rollers. (b) A printing press with a roller, used in coppe…