Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 427
ing=Door Sheaves.In many places it is desir-able to have the door slideback into pockets in the partitions. There are on the marketmany devices for trucks, generally good and inexpensive; but theirinstallation and the framing incident thereto are matters ofdelicate workmanship, and if future… … Transom Fixture for Vertical Pivoting
Architecture · Building
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