Illustrated Catalogue of Locks and Builders Hardware . NOT REVERSIBLE. No. 8311 etc. No. 8311—Cast Bronze Front, Polished, Bronze Bolts. ANTI-FRICTION LATCH BOLT Case—5>^ x 3K x K —7K x 1)4 —2 ^ in. Spacing—3H in. Hub—Bronze for ^ in. Swivel Spindle. Keys—Three Nickel Silver, No. 263. Operation—Latch bolt by knobs from either side, except when outside knob is set by stops in face of latch,then key from outside, knob from inside. Auxiliarylatch, for which there is no opening in striker, auto-matically safeguards latch bolt and also preventsmanipulation of the stops when the
Illustrated Catalogue of Locks and Builders Hardware . NOT REVERSIBLE. No. 8311 etc. No. 8311—Cast Bronze Front, Polished, Bronze Bolts. ANTI-FRICTION LATCH BOLT Case—5>^ x 3K x K —7K x 1)4 —2 ^ in. Spacing—3H in. Hub—Bronze for ^ in. Swivel Spindle. Keys—Three Nickel Silver, No. 263. Operation—Latch bolt by knobs from either side, except when outside knob is set by stops in face of latch,then key from outside, knob from inside. Auxiliarylatch, for which there is no opening in striker, auto-matically safeguards latch bolt and also preventsmanipulation of the stops when the door is closed,thus making the latch absolutely secure from en-trance except by key. No. 83113^—Dimensions same as No. 8311, Operation—Same except that it is provided with thumb turn and mechanism on inside to deadlock the latch against keys from outside. Supplied with one Cylinder only.
Size: 1263px × 1979px
Photo credit: © The Reading Room / Alamy / Afripics
License: Licensed
Model Released: No
Keywords: ., bookcentury1900, bookdecade1920, bookidillustratedc, bookyear1920
