Cyclopedia of architecture, carpentry, and building : a general reference work ... (1907)
American School of Correspondence · Chicago : American Technical Society · leaf 443
Fig. 56. CTiaiu Bolt, Allowing Dour lu be Puiiially Opeued These springs are always in action, so that, if it is ever desiredto leave the door open, some appliance must be used to accomplish 867 36 HARDWARE this purpose. As they do not generally permit the doors to swingback against the wall where… … LEVER Fig. 57. Kefrigeratoi Clailip. There are also on the market types of patented bolts, one ofwhich, when pushed by the foot, is forced by a strong spring against thefloor: the end of the rod is protected by a heavy rubber buffer, the
Architecture · Building · Carpentry
Internet Archive · Public Domain Mark 1.0. Free to use for anything.
![An illustration from The Telegrapher [microform] (1864)](https://img.insideoutlibrary.com/img/200/ia-telegrapher05nati-132-79.webp)
