Image from page 314 of "Knight's American mechanical dictionary : a description of tools, instruments, machines, processes and engineering, history of inventions, general technological vocabulary ; and digest of mechanical appliances in science and the ar
Title: Knight's American mechanical dictionary : a description of tools, instruments, machines, processes and engineering, history of inventions, general technological vocabulary ; and digest of mechanical appliances in science and the arts
Publisher: Boston : Houghton, Mifflin and Company
Contributing Library: NCSU Libraries
Digitizing Sponsor: NCSU Libraries
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ope. An instrument invented byPerigal, for illustrating the result of the combina- Fig. 2753. /, spring-beam ortie-beara./, tie-rod (upper tigure). g, pole-plate.h, wall-plate. King-Bolt. tion of circular movements of different radii in theproduction of curves. Also called kinescope. King-bolt. (Jeliiclcs.) a. A vertical bolt whichattaches the front of the body to the fore-carriage,and forms the axis of oscillation when the said car-riage is turned sideways. b. A similar (lart in a car, which forms the axisof revolution of the car upon the track in turningcurves. See C.\R-TltucK. In the example, an elastic sleeve intervenes be-tween the king-bolt and the metallic bushing, toabsorb the jar. King-post. (Carpentnj.) A main jiost bene.aththe crown or ridge of a roof-frame. Also known as crown-post or joggle-pnst. King-post trusses have several minor variations : — ff, king-post. (King-rod c, rafter. in the upper tigure). d, strut or purlin-post., principal rafters. e, purlin. fig. 2731.
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King-Posts and IVusses. A is a roof on the quay Jemappes, Paris. B is from the roof of the church of Lagorce,France, twelfth century. (7 is an ordinary barn-roof. D a Gothic roof. King-post Truss. See King-post. King-post Roof. (Carpentry.) One havingbnt one vertiial post in each tni.ss. King-rod. A tension rod depending from theridge of a roof and uniting with thetie-rod ; occupying the position of Fig. 2755. the king-post in wooden roofs. See KlNT.-POSl- (A). Kingstons Valve. A conicalvalve, forming the outlet of theblow-off pipe of a marine engine ;it opens through the side of thevessel liy turning a screw. King-truss. A roof or bridge-tru.ss framed with a King-post(which .see). Kink. (Xautical.) A sharpbend in a rope or cable which pre-vents its reeving through a blockor a hole. Kingstons Valve.
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