File:Bell telephone magazine (1922) (14569435289).jpg

Identifier: belltelephonemag16amerrich (find matches)
Title: Bell telephone magazine
Year: 1922 (1920s)
Authors: American Telephone and Telegraph Company American Telephone and Telegraph Company. Information Dept
Subjects: Telephone
Publisher: (New York, American Telephone and Telegraph Co., etc.)
Contributing Library: Prelinger Library
Digitizing Sponsor: Internet Archive

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:
theseconditions, the gears and worms are very accurately cut fromhigh grade especially selected bronze and steel respectively,and they run in a special extreme pressure lubricant. At the end of the worm shaft away from the sprocket, thereis a safety device in the form of an automatic brake (Figure14) which works when the drum rotates in the reverse direc-tion only and which will not permit the dropping out of controlof a suspended load on the winch line due to overhauling of thegears. This is a very important feature in erecting poles andhandling cable reels. As viewed from beneath the chassis (Figure 15), the drivefor this particular winch comes from a power take-off attachedto the side of the truck transmission. A propeller shaft leadsfrom the power take-off to an auxiliary transmission under thewinch frame. From a sprocket on the shaft leading out ofthe auxiliary transmission a silent chain transmits the power 62 Ftg.13. SingleDrum PowerWiNcn SL12-RRC-82, WITHDrum ClutchAND Brake.
Text Appearing After Image:
Fig. 14. OperatingMechanism Inside thePower Winch. Fig. 15 (below). ViewOF Winch, Power Take-off, AND Auxiliary Trans-mission, from Beneath.

Note About Images