Margin ObjectsIssue 09 · Contents ↗

Workshop / Mechanisms / Feature 02

The quiet turn.

How a few millimetres of brass give a door its particular sound.

An exploded drawing of a brass hinge, its pin and a slotted screw on blue drafting paper.
Look at the alternating barrels in the drawing. The pin joins both leaves on a single axis.

The joiner hangs the door before fitting the latch. With the room quiet and the catch still missing, she can hear the hinge on its own. There is a short scrape at the start of the swing. It disappears when she lifts the outer corner of the door with her hand.

On the bench the two leaves look interchangeable. They are not. One sits a fraction deeper in its recess. She shaves a curl from the other mortise, tightens one screw in each leaf, and hangs the door again. This time the pin takes the load along its length.

The last test is almost nothing. The door stands halfway open for a minute, with no hand holding it. It neither swings shut nor rubs the jamb. Only then does she reach for the remaining screws.