Builder's hardware; a manual for architects, builders and house furnishers . Fig. 189. Boston Pattern Sash-fast. Fig. 190. Sash-fast. Hopkins & Dickin- son IVIfg. Co. is fitted with a spring which keeps it pressed tightly towardsthe centre, so that the lever is caught and held when it isturned clear around through 90 degrees. On pulling the knob,A, the catch is released and the lever flies open. Figure 191 illustrates a sash-fast which works in very nearlythe same manner as the preceding, except that in order to re-lease the lever the knob is pushed in. The Hopkins &.

---

Size: 1766px × 1415px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No

Keywords: ., bookcentury1800, bookdecade1890, bookidbuildershard, bookyear1890