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Bracing for wooden shutters for doors or windows - has transverse bars bolted to shutter timbers to prevent relative displacement of shutters and warping
Bracing for wooden shutters for doors or windows - has transverse bars bolted to shutter timbers to prevent relative displacement of shutters and warping
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机译:用于门或窗户的木制百叶窗的支撑-用螺栓固定在百叶窗木材上的横杆可防止百叶窗相对移位和翘曲
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摘要
All the tongue and groove shutter timbers (1) except the outside ones (1a, 1b) have pairs of trapezoidal shaped grooves (2, 3) cut into them transversely. These receive the side projections (5, 6) of the bar (4). Fixing screws (7) hold the bar to the shutter after bolts (9), passing right through bar and shutter, have been pulled up tight to back washers with bolt nuts. The grip between bars and shutter prevents lateral displacement of the planks with respect to each other and provides a restraint to warping due to changes in atmospheric humidity.
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