Identifier: sponsdictionaryo05spon (find matches)
Title: Spons' dictionary of engineering, civil, mechanical, military, and naval; with technical terms in French, German, Italian, and Spanish
Year: 1871 (1870s)
Authors: Spon, Edward Byrne, Oliver Spon, Ernest
Subjects: Engineering
Publisher: London, New York : E. & F.N. Spon
Contributing Library: Smithsonian Libraries
Digitizing Sponsor: Smithsonian Libraries

View Book Page: Book Viewer
About This Book: Catalog Entry
View All Images: All Images From Book
Click here to view book online to see this illustration in context in a browseable online version of this book.

Text Appearing Before Image:
e suffi-ciently powerful, or capable ofeasily communicating the result ofthe differential velocity, the morereliable, sensitive, and efficient willbe the regulative action. An ex-ample of a wheel - governor byMeriton is represented by Fig.3310. Both the inertia and themomentum of the fly-wheel aretaken into consideration, as the governing forces. The contrivance isthat a shaft, made wholly or partially hollow, is cut through at por^tions of its surface, so as to formtwo spiral guides or double-actinginclines. Upon this hollow shaftis fitted loosely a heavy fly-wheelhaving at the boss an elongatedcylindrical chamber with guides cutspirally through its surface, so as toform also double-acting inclines.In the interior of the hollow shaft is a short spindle attached to a lever for working the valve.This short spindle has a pin passing through it in such a manner that the ends project and formtwo studs, which fit into holes cut through or in the inner surface of a ring, which ring has also
Text Appearing After Image:
GOVEENOR. 1701 forged upon its outer surface two studs. The two pins or studs within the circle of the ring passthrough the spiral guides of the hollow shaft to the short spindle connected with the lever workingthe valve ; and the two studs without the circle of the ring pass into the spiral guides in thecylindrical chamber forming part of the fly-wheel. The next example worthy 33H. 3312. of attention embracing many ofthe features before alluded tois Messrs. Miller and Knillsgovernor, illustrated by Figs.3311, 3312. The main partsconsist of a fly-wheel with aninclined face on the end of theboss ; a separate portion corre-sponding with the inclined endof the boss is loose or slides onthe shaft, and is connected tothe lever in communication withthe thiottle-valve. The actionof the component parts is as fol-lows :—On an increased motionbeing communicated to theshaft by the pulley from themain cranked or engine shaft,the sliding boss closes thethrottle-valve ; should the speedof the eng

Note About Images