MANUAL OF PACK TRANSPORTATION. 203 



A third circular metal band of diameter e(iual to the outer holes, 

 as })rovided on crosspieces, is })roviiled, holes being spaced equally 

 distant thereon, as })rovided on wooden crosspieces of turntable. 

 This band is further supported at its extremity by sections of metal, 

 shaped like the letter "L," attached to the horizontal portions of 

 cross arms. When cage is in position the upper ends of standards on 

 turntable engage into holes, as provided in metal crosspieces of this 

 smaller circular band. 



The connection of this smaller circular band, fitting over standards, 

 causes them to be held rigidly in position, the turntable thus con- 

 trolhng rotation of this band, or, as may be said, in unison with it, the 

 caging thus keeping the wire within due bounds when ''paying out." 



For "paying out" at rear two semicircular iron rods, holding two 

 vertical rods, which travel from side to side, are supplied. These are 

 attached to the vertical sections of cross arms at rear. Engaged be- 

 tween the vertical rods is supplied a device which travels up and 

 down these vertical rods, a hole being provided at center of device 

 through which the wire passes in "paying out" at rear. By this 

 action the wire has liberty to keep in alignment in the "paying 

 out," the vertical standards moving from side to side, and the device 

 up or dowm, as may be controlled by the action of the w4re, to relieve 

 all possibility of a holdfast in the "pay out" of the wire. 



For the purpose of carrying the pack reel a saddle is provided, fit- 

 ting over the aparejo to which it is attached, at front and rear, and 

 with suitable provisions to secure the legs of ])ack reel, and hold it 

 securely in position. (Designed by H. W. Daly.) 



PACK CHESTS (siGNAL CORPS). 



(Fig. 123.) 



Sec. 137. These chests are constructed so as to hold the necessary 

 apparatus for telephonic communication, as with the provisional field 

 artillery. 



The exterior of chests are supplied with metallic fasteners, latigos, 

 and sections of rope, for securing the chests on the aparejo, in similar 

 manner as provided for engineer-corps chests. 



LITTER carrier (HOSPITAL CORPs). 



(Figs 124, 12.5, 126.) 



Sec. 138. The carrier. — It consists of two hinges, four side plates — 

 two at top and two at bottom or ends, reenforced by wooden shoes to 

 strengthen same — four staples, two attached to each end, each staple 

 carrying two tug loops. 



Each tug loop is supplied with a side strap and c^uarter strap. The 

 side strap holds a swivel clamp at opposite end and engages over the 

 outer rail or bar of litter; the quarter strap is supplied with a distance 

 strap at end, holding a ring on each end ; these rings engage over the 

 hamlles of litter at front and rear. 



On each end of side plates swivel clamps are likewise provided that 

 hold the inside rail or bar of litter. The swivel clamps on each end 

 of side plates carry a strap, by means of which the litter, before using, 

 is strapped to carrier. 



