MANUAL OF PACK TKANSPOKTATION. 195 



Drof links (6). — To be of J-inch round iron, cut 10 inches long; on 

 each end of one section form an eye whose diameter will be three- 

 eighths of an inch. Now, 1 inch from center of section both ways 

 turn at right angles to form drop links. 



Staples for links (8) . — Cut a section of similar material 3 inches 

 long; at center of section form semicircle over templet, templet to be 

 of ^-inch round iron ; diameter at base of semicircle to be 1 inch. One- 

 half of an inch of each end to be flattened to a thickness of one-eighth 

 of an inch; length of flattened surface to be not more than five-eighths 

 of an inch and punch one hole at center of each end; diameter of hole 

 to be three-sixteenths of an inch. 



Now introduce a staple into each eye of drop link and place on the 

 under surface of supports in such manner so that one rivet will engage 

 the second and third distance boards and supports ; the opposite end 

 of staple will be riveted down to supports. 



Distance boards for platforms (6) . — To be of good, sound hickory, 

 free of knots and blemishes. To be 20f inches long, IJ inches wide, 

 and one-half of an inch thick. 



Reenforcing plates for distance hoards (6) . — To be of band steel, 1 i 

 inches wide, gauge 18, length corresponding with length of distance 

 boards. 



In applying distance boards to supports space equally distant in 

 such manner as to carry one rivet on the second and third distance 

 boards at each end and center, this for the purpose of receiving one 

 eye of staple holding drop link, the eye at opposite end of staple will 

 be riveted down to support; at center of distance boards rivet down 

 to center plates; in similar manner in center of space between ends 

 and center plates, rivet reenforcing plates to distance boards. 



The reenforcing plates will be considered the under side when apply- 

 ing distance boards to supports. All rivets between supports to be 

 copper rivets; all rivets on supports to be iron rivets. 



The remaining two drop links to be applied at center of second dis- 

 tance rod, engaging center plates between the eyes of drop links. AP 

 work to be done in a first-class and accurate manner. 



(3) The lashing. 



Rods for lashing (2). — To be of round iron ^ of an inch diameter, 

 to be cut 18 inches long; form eye on each end of rod, diameter of eye 

 to be one-half of an inch. 



Each eye of lash rods to carry a "D " ring. "D " rings to be of No. 

 326 X. C. D's. 



For each lash rod a metal square will be provided. No. 1155 japanned 

 square. These to be carried on fold of center strap of lashing. 



Canvas for lashing. — To be of brown or khaki color. No. 4 cotton 

 duck; to be cut 14 inches long and 10 inches wide. 



On each end of canvas, the short way, lay a lash rod and fold over 

 so as to leave a distance of 10 inches, and sew down with basting 

 si"itcii 



Facings for lashing {2). — To be of good, solid, fair leather. Cut two 

 sections 10 inches long and 7 inches wide; semicircle each section the 

 long way, lay each section over distance rods in similar manner as 



