This section is from the book "The Scientific American Boy", by A. Russell Bond. Also available from Amazon: The Scientific American Boy.
The method of riveting together the leather straps may need a word of explanation. A copper rivet was passed through a hole in the two straps; then the washer was slipped over the projecting end of the rivet. This washer had to be jammed down tight against the leather, and to do this we drilled a hole of the diameter of the rivet in a block of wood, and putting this block over the washer, with the end of the rivet projecting into the hole, we hammered the block until the washer was forced down tight against the leather. Then taking a light tack hammer we battered down the end of the rivet onto the washer. Care was taken to do this hammering very lightly, otherwise the end would have been bent over instead of being flattened.

Fig. 213. Pack Harness.

Fig. 214. Riveting the Straps Together.
 
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