58 



BELL SYSTEM TECHNICAL JOURNAL 



truck. The net result is that instead of a 3 or 5-ton unit weighing 

 loaded 18,000 or 25,000 pounds, it is possible to handle the work more 

 satisfactorily with 2 or 2^-ton units weighing in the neighborhood of 

 12,000 pounds. 



The advantages gained by this reduction in truck size are large. 

 Not only is the initial and operating cost of the equipment much 

 less but the more important feature is that these 2-ton trucks can 

 penetrate and economically operate in territories where a heavier 



Fig. 11 — Latest Type 2-Ton Heavy Construction Unit 



unit could not negotiate the roads. Many country bridges will not 

 carry more than 6 tons. Also, on narrow country roads, the com- 

 paratively shorter wheel base of the 2-ton truck permits easier turn- 

 ing around or maneuvering. 



Figs. 11, 12, 13 and 18 present illustrations of some of the latest 

 developments in line construction truck design and associated equip- 

 ment. The particular type of body shown has been selected as an 

 example from the various types employed by the Telephone Com- 

 panies because of its broad use and because it so well illustrates the 

 general development which is taking place. The outfits shown, 

 except in Fig. 13, are of 2 to 2^-ton capacity and perhaps the most 

 outstanding feature is that of the rugged and compact body arrange- 

 ment, each detail of which has been specially designed to meet a par- 

 ticular construction need. The tool and machinery equipment is 

 applicable to the most exacting requirements of the average outside 



