1844.] 



of a Pier at Madras. 



83 



inches of rim, and having as many jaws as is necessary for the ad 0 

 mission of the props and braces. 



Props Horizontal. — The longitudinal braces to be of flat iron, 

 three and half inches broad by two inches thick ; this first dimension 

 to be the same for the props, the transverse and angle braces, their 

 thickness being one and a half inch ; the diagonal braces to be ; of 

 round iron, two inches in diameter. 



The props and angle braces to be pinned up to the longitudinal 

 and transverse braces by iron pins, one and a half inches in diame- 

 ter. The longitudinal, transverse, and diagonal braces to be secured 

 at either end, to the jaws of the cast iron collars, disposed for their 

 admission by keys, eight inches long two inches broad and one 

 inch thick. 



Necessary Additions. — A wrought iron railing to be secured 

 along each side of the roadway which will be changed for posts and 

 chains on the pier head. Top rail to be one inch and three lines in 

 diameter, the uprights two inches, and three feet long. Diameter 

 of chain posts three inches, size of chains half an inch, four double 

 cranes, iron stairs, ladders and other aparatus to be placed on the 

 platform terminating the Pier. 



A cast iron water pipe leading from the reservoir to the end of 

 the Pier the piles supporting the platform to be increased in diame- 

 ter from five and half to six inches. 



Wood Work. — To be of teak of the best quality. The beams 

 which lie transversely to be ten inches by six and firmly secured on 

 the upper longitudinal braces by iron bands nailed upon them. The 

 supports of the rails to be seven inches by five, notched into the 

 transverse beams and bolted together. The planking to be tester 

 twelve inches broad, by two inches thick. 



(Signed) P. Duval Piron. 



