doffing cylinder

A cylinder clothed with cards which are presented in such direction and at such a rate of motion to the main card-cylinder as to remove the fibers from the teeth of the latter. The doffing-cylinder a umes one of three forms: (1) Continuous clothing: removing a perfect fleece of the width of the machine. Such is the doffer of the boil, boy; pout, jowl; cat, çell, chorus, chin, bench; go, gem; thin, this; principally employed in the chase, dogs have been put to various uses at different times and in different places. The Esquimaux, who believe themselves descended from dogs, employ them to draw their sledges. For purposes of light draught they were at one time largely resorted to in England, an employment for which others are still called into requisition on the continent. With some of the aborigines of this country the dog was an object of worship, and by the Japanese it is held in great respect. On the other hand, the Greeks, Romans, and the old Celtic inhabitants of Scand in a via were accustomed to sacrifice dogs to certain of their deities; while, per contra , dogs have also been employed as executioners and even as living tombs. There are several kinds of feral or wild dogs inhabiting several parts of the world, such as the Dingo in Australia, the Indian Wild-dog or Dhole, the Pariah dogs, . (q. v.), all of which are merely domestic varieties that have run wild. 2. Astron .: A name given to two constellations in the southern hemisphere, the Greater Dog, Canis Major , and the Le er Dog, Canis Minor . [CANICULA.] "Among the southern constellations, two there are whe bear the name of the dog ; the one in sixteen degrees lati tude, containing on the left thigh a star of the first magnitude, usually called Procyon or Anti can us." Browne: Vulgar Errors. sin, as; expect, Xenophon, exist. ph = f. The American Dictionary and Cyclopedia dog 3. Mech .: A name given to various mechanical contrivances acting as holdfasts; a device with a tooth which penetrates or grips an object and detains it. The analogy and inference of the name is that the device has a tooth and bites. (1) Pile - driving : A grappling-iron or grab, usually with jaws, and adapted to raise the monkey of a pile-driver. When the jaws open the object is dropped or released. [PILE-DRIVER.] (2) Well - boring : A grab for clutching well-tubes or tools, in withdrawing them from bored, drilled, or driven wells. [GRAB.] IMG:content-0314.png:[blocks in formation] (5) Machinery : (a) The converging set screws which establish the bed-tool of a punching-pre in direct coincidence with the punch. (b) A contrivance for holding the staff to the rest, chuck, or carriage, while being cut, sawed, planed, or drilled. (c) An adjustable stop placed in a machine to change direction of motion, as in the case of feed motion, or in jacking, shaping, or planing-machines. (6) Hoisting and Hauling : (a) A grappling-iron with a fang which is driven into an object to be raised or moved. In the continuous system of feed in saw-mills, the chain has a number of dogs attached to different portions of its length. Dogs are also used for securing and towing floating logs and in shifting or loading logs on the ground or carriage. (b) A ring-dog or span-dog: two dogs shackled together by a ring, and used for hauling or hoisting. (c) Sling-dogs: two dogs at the end of a rope, and used in hoisting barrels; a span-shackle. (7) Joinery: A bench-dog is a clamp, and holds the timber by its tusk. (8) Sawing : A rod on the head or tail block of a saw-mill carriage, by which the log is secured in position. The dog is pivoted to the block, and its tooth is driven into the log. It varies in form on the head and tail blocks respectively. (9) Shipbuilding : The last detent or support knocked away at the launching of a ship; a dog. shore. (10) Locksmith .: A projection, tooth, tusk, or jag in a lock, acting as a detent. Especially used in tumbler-locks. (11) Domestic : An andiron. "The iron doggs bear the burden of the fuel."-Fuller: Worthies, ch. ix. (12) Smith. A lever used by blacksmiths in shoeing i. e., hooping-cart-wheels. (13) Gunnery: The hammer of a pistol or firelock; called also Dog-head (q. v.). "He lets fall the dog , the pistol goes off, and his wife is killed with it." -Law: Memorials , p. 225. IMG:content-0315.png:[blocks in formation] parts Shakesp.: Macbeth , v. 3. (4) A dog in the manger: A churlish, selfish person, who will neither make use of a thing himself, nor allow any one else to have the benefit of it. dog-and-driver chuck, s. A chuck having two The dog slips upon and is fastened by a set screw to the object to be turned. The driver is attached to the lathe-mandrel, and has a projecting arm which comes in contact with the dog, and causes it and the work to revolve with the mandrel. ( Knight .) IMG:content-0316.png:[blocks in formation] 2. An iron hook or bar with a sharp fang. "Bolts not unlike our dog-bolts."- Archæologia , xx. 555 (1824). ( Davies .)