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bugonal bracing angles foe plate girder spans. 
No. 
Legs 
Weight per foot 
Extreme length 
WASHERS. 
No. 
I Diameter 
Diameter of bolts 
SEPARATE RIVETS. 
No. 
diameter 
length under head 
Kind of head 
Position in bridge 
Parts connected 
PIN PILOTS. 
No. 
External diameter 
Internal diameter 
LOCK NUTS. 
No. 
Size 
Description 
this f° m ° engineers send also a complete bill of rivets to be used in the shop; but 
Scaice ly necessary, as it is more properly the place of the manufacturer to 
F e P ar e such a bill. 
following form will be needed for the purpose : -- 
RIVETS. 
放 ember | isr。. 
Diameter 
Length between heads 
Kind of heads 
Parts connected 
froi ^ allowance of three per cent should be made for waste in shop rivets, anti 
叻 e n t 0 twelve per cent in field rivets. 
“ . 也 6 Up verticals be flat bars, they are to be transferred to tlie group of 
， Diagonals, et G ： f 
The 
corresponding form of ^ Shipping Bill ” is as follows 
STRUTS. 
Member 
No. 
Length centre to end, or extreme length 
Mark 
