The morning journal-courier., 1908-04-24
STEEL AND WROUGHT IRON COL
 UMNS.


 scribed for cast iron columns, or built shoes of plates and shapes may be used, With the same requirements.
 Sec, III to be amended so that said scc- ton shall read as follows: Double Col umns In all buildings hereafter erected or altered. where any iron or Steel column or columns are used to support n wall or part thereof whether the same be an exterior or an interior wall and columns located below the level of the sidewalk which are used to support exterior walls or arches over vaults the said column or columns shall be either constructed dou- ble, that is. an outer and an inner col umn, tho Inner column alone to be of sufficient strength 10 sustain safely the weight 10 be imposed thereon, and the outer columns shall be unc Inch shorter than the Inner columns, or such other Iron or steel column of sufficient strength. And together with any steel or, Iron beams or, other supports connect. cd herewith to be protected by not less than two Inches of nreproof material se- curely applied except for columns sup porting walls on street fronts"
 Sec. IF and tl9 to be amended 20 that said sections as amended shall read as follows:
 TEMPLATES.
 Under the ends of steel beams and
  piers or masonry. either iron, steel or stone templates shall be used of such dimensions as to bring no greater pres sure upon the brick work than allowed by section l03 of this ordinance,
 When iron or steel floor beams, not ex. ceedng six inches in depth, nre placed not more than 30 Inches on centers, no templates arc required. If stone tenn. p,ates are used they shall either be of cut granite. East Haven stone or blue stone blocks at least eight inches thick In case the opening is less than l2 feet. stone blocks may be five inches in thick ness or cast iron, steel or wrought iron plates of equal strength by the full size of the bearings may be used. provided iu all cases, the safe loais do not ex- ceed those fixed by section l02 of this or dinance.
 Sec i2O The eighth word from tho end of this section to read angles instead of ankles SO that said section shall read as follows:
 Sec i9O. Framing and Connecting struc- tural Work. All iron or steel trimmer beams, headers and tall beam shall be suitably framed and connected together, and the iron or steel glrders, columns, beams, trusscs and all other iron work of all foov and roofs shall be strap ped, bolted, anchored and connected to- gether and to the walls.
 All beams framed into and supported by other beams or girders shall be con nected thereto by angles or knees of a proper size and thickness and have suf- gcient bolts or rlvets In both legs of each connecting angle 10 transmit the en- tire weight or load coming on the beam 10 the supporting beam or glrder. In no case shall the shearlng value of the bolts or rivets or the bearing value of Che con. necton angles provided for in this or dinance be exceeded.
 Sec. l22. The third word in the second line 10 read effected" instead of "af- fected," The word ''steel' In the sixth line from the end of this section to be modified by the word medium" so that said section shall read as follows:
 Sec. l22. Bolting of Structural Steel and Wrought Work Where rlveting ia not made mandatory connections may be effected by bolts. These bolts shall bc of wrought-iron or mild steel, and they threads shall be full and clean, the nut shall be truly concentric with the bolt, and the thread be of sufficient length to allow the nut to be screwed up tightly When bolts go through bevel flanges, bevel washers to match shall be used so that head and nut of bolt are parallel When bolts are used for suspenders, the working stresses shall be reduced for wrousht-ipn to 10000 pounds and for medium steel to 14O0O pounds per square inch of net area, and the load shall be transmitted into the head or nut by strong washers distributing the pressure evenly over the entire surface of the same. Turned bolts in reamed holes shall be deemed a substitute for field rIvets.
 Sec. 123 Last sentenre to read as fol- lows: The compression and tension stresses shall not exceed 16O00 pounds for medium Iron and 12.000 pounds for wrought iron per square inch of net area in any member" so that said section as amended shall read as follows:
 Sec. 123 Steel and Wrought-iron T'russes. Trusses shall be of such design that the stresses in each member can be calcu, lated. All trusses shall be held rig idly in position by efficient systems of lateral and sway bracng, struts shall be spaced So that the maximum limit of length shall not be greater than 100 times the least radius of gyration. Any member of q truss subjected to trans- verse stress, in adition 10 direct tension or compression. shall have the stresses causing such strain added to the direct stresses coming on the member
 "The compression and tension stresses shall not exceed l6000 pounds for me. dium iron end l2,Oo pounds for wrought iron per square Inch of net area in any member"
 Sec l27. The first sentence to read aa follows: "All structural metal work shall be cleaned of ail scale dirt and rust and to be thoroughly coated with one coat of paint of kind approved by the Inspector of Buldngs' so that said sec ton as amended shall read as follows:
 Sec. 127 Painting of structural metal work. All structural metal work shall be cleaned of all scale. dirt and rust, and be thoroughly coated with one coat of paint of kind approved by the Inspector of Buildings.
 Cast-ron columns shall not be painted until after inspection by the Inspector oi Buildings, Where surfaces In rivetet work come in conIact, they shall be painted before assembling After cree, tlon all work shall be painted at least used under water shall be incosed witt concrete to exclude the air and water to the satisfaction of the Inspector oi Buildings.
 Sec, lSS. The afth word in the thirt line to read "16 inches instead of "1S inches, so that said section as amended shall read as follows:
 Sec, l3s. Walls to separate stage ant auditorium. The stage shall be separated from the auditorium by brick wall no less than 16 inches thick or It's equiva lent, the entire width of the buildns and topped out at least four feet abov, the roof over the auditorium. There shal 1 be no openings in Shis wall except tn, curtain opening. and not more than twt others, to be located at the level or be
 low the stage These latter opening shall not exceed q superficial feet each with iron or tin covered wood and self closing doors securely hung to rebate in the briekwork, so as to be opened from either side at all times. The wal over the curtain opening shall be carried hv iron girders or by brick arch 0