218 MANUAL OF PACK TEANSPORTATION. 



half-inch hole on free end of clamp and apply washer over bolt ; thick- 

 ness of washer must not exceed what is not covered for swivel portion, 

 so as to permit clamp to swing freely when riveted on the clamp 

 swivels on the shoulder formed on bolt, the washer acting as an aid 

 to clamp to swing or swivel freely. Now introduce bolt through hole 

 on form on end of side plate, and rivet down securely on under side 

 of side plate. 



16. Swivel clam])sfor side straps (4)- — To be made in similar manner 

 as that described for swivel clamps for side plates of frame, w4th the 

 following exception: The free end of clamp to be rolled outwardly 

 to receive link or loop, wdiose diameter will be five-sixteenths of an 

 inch. 



17. Links for sioivel clamps for side straps (4). — To be of '* Norway" 

 round iron, 6^ inches long and five-sixteenths of an inch diameter, 

 shaped in this manner: Two inches from each end turn at right angles; 

 this leaves a base of 2 J inches to be engaged by roll on free end of 

 clamp. Now 1 inch from each end turn again at right angles and 

 weld ; this leaves a base of 2 inches wide to receive side strap ; diameter 

 of link to be three-fourths of an inch between bases. In engaging 

 the lower base in roll provided on clamp, allow sufficient play in roll 

 for link to work freely, roll on free end of clamp to be turned out- 

 wardly and link engaged securely; the upper base or portion of link 

 to receive side strap of frame, width of side strap to be 2 inches. 



18. Side straps for litter frame (4). — To be made of good solid 

 harness leather, one-eighth of an inch thick. Cut two straps 5 feet 

 long and 2 inches wide, shave each end of straps, and fold, keeping 

 the "grained" side of each strap outward; this gives a doubled 

 thickness for side strap. In folding allow an extension of 3 inches on 

 one strap; this gives a similar extension at opposite end. Now 

 provide two sections, each 6 inches long and 2 inches wide, and shave 

 ends. Lay the first section on one end between the folds of strap, so 

 as to extend to end. Now fold over extension and section, so as to 

 receive the ends of section between the folds of strap, and lap the free 

 end of strap on outer side of folds; this gives a doubled thickness 

 at center of fold. Next punch opening at center of end to receive a 

 2-inch japanned buckle. Introduce buckle receiving section and 

 extension and fold back ends as indicated. Now provide keeper for 

 strap, to be placed on the upper side and 2 inches from buckle, width 

 of section for keeper to be 2 inches. Sew down both sections of side 

 strap to within 4 inches of opposite end and one-fourth of an inch 

 from edges. Provide six holes, spaced 2 inches apart, large enough to 

 freely admit tongue of buckle, first hole to be 9 inches from buckle 

 end of strap. Now provide a swivel clamp for side strap and intro- 

 duce the free end of strap through the link of clamp and through 

 keeper and buckle ; engage buckle on free end of strap so as to leave a 

 loop of about 9 inches long. The back of clamp will correspond with 

 back of buckle. 



Now place the "second" section on the free end of side strap and 

 pass this end through both tug loops or cockeyes, on one side of hinge 

 as provided, from underneath, and engage around first or upper tug 

 loop on opposite side of hinge; the section and extension of strap on 

 free end to be folded in similar manner as described for opposite end 

 and sewed down. 



