Cyclopedia of architecture, carpentry, and building : a general reference work (1912)
American Technical Society · Chicago : American Technical Society · leaf 424
Fig. 54. Flush-Ring Cupboard Cateh. a cylinder in which a piston runs freely until the door is nearly closed, %vhen either the air or some oil or other licjuid which cannot be frozen in the cylinder checks the rapid piston action, so that the door is closed easily and without a slam (see Fig. 58).… … Fig. 56. Chain Bolt, Allowiug Door to be Partially Opened These springs are aUvays in action, so that, if it is ever desiredto leave the door open, some appliance must be used to accomplish 347 36 HARDWARE this purpose. As they do not generally permit the doors to swingback against the wall where…
Architecture · Building
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