. Engineering and Contracting . ut architec-tural beauty. To the newspapers in Philadelphia 1 would like to throwout the suggestion that in the New York Herald they willfind every Sunday a pretty fine article on city zoning andwhat it means to all communities. All this is public infor-mation. It is simply called public information. but itcovers the whole of Gods country, and it is broad enoughto claim the interest of every one. Method of Checking Movement of CribThrough Which Piles Are Driven In order to determine just what movement takes placewhen piles are driven through the crib ballast, tw
. Engineering and Contracting . ut architec-tural beauty. To the newspapers in Philadelphia 1 would like to throwout the suggestion that in the New York Herald they willfind every Sunday a pretty fine article on city zoning andwhat it means to all communities. All this is public infor-mation. It is simply called public information. but itcovers the whole of Gods country, and it is broad enoughto claim the interest of every one. Method of Checking Movement of CribThrough Which Piles Are Driven In order to determine just what movement takes placewhen piles are driven through the crib ballast, two test pileswere driven through 20 ft. of the stone of a timber crib. Thetest was made by Mr. S. J. Chapleau. District Engineer, On-tario Department of Public Works. The method of checkingthe movement of the faces of the crib during the driving ofthe piles is described by Mr. A. Langlois in the Contract Rec-ord. In carrying out the experiment a trestle or stand waserected on which was attached a pole supporting a disc and 384 _. JSeclion a^ /A - 6 Sketch Showing Method of Checking Crib Movement DuringDriving of Piles. the transit. The method of making the observations is evi-dent from the sketch. Two 50-ft. piles were driven for theirfull length, 20 ft. through the stone of the crib work and thebalance through clay. The piles were shod with cast ironshoes and banded at the butt with an iron ring. A was used for driving. The result of the experimentw-as most satisfactory, one pile being driven as close as 12 the face of the pier, with a slight move of hardly % on the top two timbers. During the driving of pileNo. 1 not the slightest move was detected. Fabricating Shops Contracts in May.—The records of theBridge Builders (S- Structural Society, from reports collectedby its secretary, show that during the month of May 61%per cent of the entire capacity of the bridge and structuralshops of the country was contracted for. (164) Ennineering and Con
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