Show NEW DEVICES REDUCE NOISE OF CONSTRUCTION WILMINGTON UNGTO Del UP Up 4 A story fourteen buStling building Is s being erected hero with little more moie noise than in construction of or a 3 barn The structure is an n addition to the Du Du- office building which when the new section is Is' Is completed will cover corer two city blocks All AU of ot the structural steel frame is b being ln electrically w welded whilo tho the concrete is mixed at a a. central plant and hauled haule 1 to the site ready for pouring The absence of or the tho racket of or pneumatic riveting hammers hammers ham ham- mers and the rattle of ot concrete mixers in operation has eliminated practically any all noise except that of nailing to together the lumber Jumber forms torms for tor the floors and other concrete work |