CASEMENT KM STYLE WINDOWS
(casement = side opening)

KM STYLE

(EITHER WITH WINDERS OR STAYS)

These are by far the most popular design of metal window and were manufactured from around the mid 1930s to the mid 1970s. They are mostly side hinged (casement) type, although some may be of the awning (top hinged) design. They will have either butt hinges (nearly flush with the window frame; mostly found in housing commission units) or protruding hinges (more like a pivot point than a hinge, at a distance outside the glass).

The casement catch is a lift up latch that does not go out with the window when it is opened . This is major distinction between these windows and the Crittal style (see below).

Down in the right-hand and left-hand corners of these windows is an arm (called a casement stay) that usually, but not always, has a series of holes into which a little bobbin drops to retain the window in an open position. Alternatively an arm winder (turn the handle and the arm moves in an arc) might be used to keep the window open.

Casement stays have not been manufactured for many years, we replace them with arm winders.

Where you have winders that are worn or damaged we will replace them with new.

OPTION:

If the new winder handle would interfere with your curtains or blinds we can supply a handle which folds out of the way.

OPTION:

Where double-glazing has been added to the window and a folding handle would not be suitable small 'T' or 'butterfly' handles are available.

PHOTO 6 - BEFORE Original KM casement stay

PHOTO 7 - AFTER Above casement stay converted to a winder (a full handle is shown. Folding or butterfly handles are also available).

PHOTO 8 - Original Lockwood style casement winder on a KM window (this was the most common winder on steel/metal windows). This has a butterfly handle.