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`ei 'at <br />of <br />Nlmnber of <br />'Trade size of <br />gn - <br />lbs. <br />Chains or <br />Chains or Cables <br />Cables <br />Up to <br />75 <br />i <br />4/o <br />76 to <br />L,5O <br />2 <br />1:/0 <br />:.51 to <br />!400 <br />2 <br />8; , <br />401 to <br />1000 <br />2 <br />10 /0 <br />Fastening to Wall <br />Toro expm:sion bolts per chair.. <br />Two expansion bolts per chain. <br />One bolt through wall or equivalent. <br />Two bolts through wall or egaivalent- <br />Fastenings shall be so installed that attached supports or guys make an <br />angle of forty -five (45) degrees or greater with sign. 4Ihere machine or <br />lag screws enter strong structures anchorage they will be considered as <br />equivalent to bolt through the wall. Expansion bolts shall be not less <br />than three- eighths (3/8) inch in diameter and shall enter woodwork not <br />less than three (3) inches. <br />2. No supporting chain or cable shall be attached back of the center of <br />gravity of the sign, except in the case of the rear supports of vertical <br />signs. <br />3. Each left chain or cable shall be capable of carrying the sign alone. <br />Fastenings for signs, supports or guys shall not be attached to paratet <br />walls and shall not be less than eight (8) inches from corner of building. <br />4. All projecting signs shall have standard chain or cable side guys or <br />rigid brace supports as shown in the following tables; <br />Capacity in square feet of sign surface for pipe braces; <br />Trade Cutside Length of Brace (Feet) <br />Size Diameter <br />of Pipe of Pipe 3 4 5 6 7 8 ,9 10 11 12 13 14 15 16 18 20 22 <br />`. j2 3.62 38 22 2; <br />3/4 1.03 40 28 15 <br />1 1.29 54 33 3 <br />1 -1/4 1.65 70 53 37 21 <br />i -1/4 1.89 56 41 23 <br />2 2.30' 78 60 25 <br />2-1/2 2.86 95 48 <br />more than forty uouare feet to one brace. <br />Pipe braces shall not have joints near center. <br />- 17 - <br />