The Technique of FURNITURE MAKING

Fall flap locks

Fall flaps which are inset, i. e. closing within the carcass framing, can be secured with standard till or drawer locks, but lay-on or onset flaps closing over the carcass framing require either purpose-made locks, link plate locks or special flap locks of which the type shown in 267 is a typical example. This lock can be used with striking plate 267:1, 2A for both inset or lay-on flaps, and with threaded bush and collared pin

(267:3B) for lay-on flaps only. Figure 267:4 is another variety for inset flaps in which the bolt shoots up into a standard striking plate.

Sliding glass door locks

Methods of locking sliding glass doors are shown in 267:5, 6. Figure 267:5 is a ratchet-bar lock for glass thickness from5/32 in (4 mm) to 5/16 in (8 mm), and requires no drilling as the ratchet bar assembly is thumb screwed to the leading edge of the rear glass in any convenient position. The detachable lock is slid on to this bar and prevents either door being moved. Figure 267:6 is a plan drawing of a cylinder type which passes through a hole drilled in the front glass and is secured with a nut and set screw; the projecting circular bolt shoots out to bear against the edge of the rear glass, thus preventing any movement of either.