RIVETS AND RIVETING

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rivets, measured from centre to centre. In cases where the rivets are
31 diameters apart their pitch is said to be Z\ diameters.

h

Fig. 20 —Chain Riveted Landing

The ends of plates may be connected by a "lap" joint, which is just
the end of one plate overlapping the end of the other with a sufficient
"landing" to take a single row of rivets, or a double or treble row as
may be required. The plate landing is the name given to the breadth of

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Fig 27 —Zig-Zag Riveted Landing.

the overlapping edges of two plates, which, obviously, would be regulated
by the numbers of rows of rivets. The figures illustrate "chain"
riveting and "sng-zag" or "reeled" riveting.

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Fig 28 —Double Riveted Butt.

The ends of plates may also be joined together by means of a "butt7'
strap, which is a plate long enough to cover the breadth of the plate
and broad enough to take the requisite number of rivets. There are