friction plate (frikshonplat)

1. A metal plate attached to any surface to prevent abrasion or resist friction.-2. A plate used in connection with a clamp to check the recoil of a gun-carriage. position of chlorate of potash and antimony, which readily ignites by friction. friction-primer (frik's hon-primer), n. A fric- tion-tube. [U. S.1 friction-sound After hym we honoureth Venus mest, that Frie yclepud ys in oure tonge, & in the wyke Friday for hym ywys. Rob . of Gloucester , p. 112. a form of friction-coupling consisting of two cones, one of which is fitted into the other and communicates its motion to it by means of the friction between the two sur faces. See fric tion - coupling. friction-coupling (frik's hon-kup"ling), n. In mach., Π Friction-cones. a and b, cones; c, fork. a device for conveying motion from one line of friction-tube (frik's hon-tūb), n. Milit., a tube used in firing cannon, sufficient heat being shafting another by the frictional contact of cones, expanding toggles, and clutches of var i generated in it by friction to ignite friction ous forms. In all these appliances a sleeve sliding on one of the shafts and turning with it may be advanced or drawn back at will to bring the parts into action. In the friction-cone coupling a conical disk is pushed at will into a hollow cone, the two surfaces fitting closely together, and either, when in motion, imparting its Friction-coupling. motion to the other by friction. In other friction-couplings the sliding sleeve causes a pair of toggles to expand against the inner rim of an idle pulley, and by their contact to impart to it their motion; or the movement of sliding levers over a cone causes two pulleys to be drawn together into frictional contact, or causes two disks to pre one against the other. In all these couplings the object sought is to connect parts of a line of shafting by frictional contact instead of direct contact, as in a geared wheel, and to obtain the same advantages in a coupling that are found in friction-gearing. friction-gear (frik's hon-gēr), n. Same as fric tion - gearing.