WESTEEL; DIVISION OF VICWEST OPERATING LIMITED PARTNERSHIP
发明人:
ALLEN, BRUCE,SHAN, YUQIN
申请号：
CA2674857
公开号：
CA2674857C
申请日:
2009.08.11
申请国别(地区):
CA
年份:
2013
代理人:
摘要：
A roof for a large diameter grain bin is formed by roof rafters inclinedfrom a top of the wall to a top ring, with sheet metal panels in an upper rowextending from the ring to a circular bottom edge and a lower row extendingfrom acircular top edge to the wall. A circular bracket of Z-shaped cross section iscarriedon the rafters by upstanding support legs and provides an upper flangeengaging thebottom edge of the upper row and a lower flange engaging the top edge of thelowerrow and an interconnecting web portion. One or both rows are supported at amidpoint on a cylindrical tube bent to form a circle butting the panels andsupported fromthe rafters on leg members which include a center strap which can be bentaroundthe tube and two legs bolted to the rafters.
