| 摘要 |
A combined astragal and flush bolt arrangement for a pair of doors in which upper and lower flush bolts are arranged to lock the inactive door in a closed position within its door frame, the active door being latched by a conventional lock to the inactive door for normal service. The astragal is generally T-shaped in cross section, comprising a longitudinal mounting rail secured to the free edge of the inactive door and having a right angular head rail which provides a stop against which the active door seats in its closed position. The longitudinal mounting rail includes an internal slideway, the flush bolts being slidably confined within upper and lower portions of the slideway and having outer end portions arranged to project outwardly beyond the rail into the keepers of the header and sill of the door frame.
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