. Handbook of construction plant, its cost and efficiency. o o fM s w e^a;, !* b5 3 P «OfU OJ B Op O <S 3? o 2.® 2. 3 &Bo, CO® ® as o55 i-3 ® ;1® < 3 ^ ® < ® 550 t-H :- H« I-® ff R & CD M * s « * CO O M l-> •- S3 W <p3ffis® ® g- 3h3 ^3 g <* H § &$?* ?5 ?«. 0 • c 0 0^3.^®< cioibfcoo 536 HANDBOOK OF CONSTRUCTION PLANT On Pierson & Sons work on the East River tunnels for thePennsylvania Railroad 200,000 rivets were required in each of2 caissons. The record days work on the caisson was 1,496rivets by a gang with a Boyer riveter working from a regularly. Fig. 245.
. Handbook of construction plant, its cost and efficiency. o o fM s w e^a;, !* b5 3 P «OfU OJ B Op O <S 3? o 2.® 2. 3 &Bo, CO® ® as o55 i-3 ® ;1® < 3 ^ ® < ® 550 t-H :- H« I-® ff R & CD M * s « * CO O M l-> •- S3 W <p3ffis® ® g- 3h3 ^3 g <* H § &$?* ?5 ?«. 0 • c 0 0^3.^®< cioibfcoo 536 HANDBOOK OF CONSTRUCTION PLANT On Pierson & Sons work on the East River tunnels for thePennsylvania Railroad 200,000 rivets were required in each of2 caissons. The record days work on the caisson was 1,496rivets by a gang with a Boyer riveter working from a regularly. Fig. 245. Imperial Type E Riveting Hammer. For Driving Rivets up to %-inch scaffold. One extra man worked in the gang. 1,200rivets were the ordinary days work. All rivets had to be tightlydriven so as to render work absolutely water tight. Steel Rivets.* The following prices for steel rivets were f. o. and were minimum on contracts for large lots; the
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Keywords: ., bookcentury1900, bookdecade1910, booksubjectbuilding, bookyear191
