A mortice lock is a common door fitting, where a spring-loaded catch or bolt, with a flat face and curved edge, takes part in a recess in the door frame. As the door is pressed shut the curved face hits the striking plate on the door frame and presses the bolt back into the latch body. When the door is totally closed the bolt gets up into the recess in the rubbing plate with its flat face providing a favorable locking action. Here are some guidelines on how to fit a mortice latch to a door.
1. The lock is normally placed in line with the main panel width of a door.
2. Utilize the latch body to mark the mortice position on the door edge. In line with the centre rail or lock block.
3. Using a marking gauge, set it to just larger than the density of the lock body and mark the summary of the mortice centred on the door edge.
4. Using a power drill and flat wood bit make a series of holes in between the guidelines, a little much deeper than the length of the lock body.
5. Chop out the waste with a sculpt and mallet, then pare down the sides of the hole and clean out the recess. Attempt the latch for fit in the hole.
6. Draw around the latch faceplate on the edge of the door then cut around the lines with a sculpt and make a series of parallel cuts across the grain.
7. Carefully chisel out the waste wood between the significant standards.
8. Hold the lock body versus the face of the door in line with the mortice and with its faceplate flush with the door edge. Mark the spindle position.
9. Secure an extra piece of wood to the other side of the door. Drill a hole huge enough to accept the spindle through the door into the scrap wood.
10. Move the latch into place in its mortice and make pilot holes through the faceplate with an awl then drive in the faceplate repairing screws.
11. Insert the spindle and fit a handle onto each end of it. Inspect that the spindle rotates freely, then screw both manages to the door.
12. Close the door in order to mark where the lock bolt meets the frame, then sculpt out the recesses for the bolt and striking plate.
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13. Screw on the plate.