Manual of Purpose-Made Woodworking Joinery

66 Making traditional and modern windows

71 × 71 par

SILL

71 × 58 par

HEAD

42 × 47 par

TOP RAIL

42 × 47 par

BOTTOM

RAIL

71 × 40 par

SILL EXTENSION

10 × 10

10

38

20

9º

Extended sill (if required)^1725

(^25) 32 × 32 Drip mould
22
12
71 × 58 par
JAMB Anit-capillary grooves
9º
42 × 47 par
SASH
STILE
42 × 47 par
SASH
STILE
71 × 58 par
MULLION
71 × 58 par
JAMB
Directly glazed
71 × 58 par
TRANSOM
42 × 22 par
GLAZING
BAR
No drip mould
required here
if there is no
sash below the
transom and it
is ‘directly glazed’
Stormproof
cranked hinge
(sherardized)
?
Alternative face-fixing
‘Easiclean’ hinge. Produces a
large gap on hinge-side for
cleaning the exterior surface
of the glass.
Note: the bottom
rail must be
increased from
47 to 60 mm if
there are no
glazing bars
above
42 × 47 par
BOTTOM RAIL
VERTICAL SECTION
HORIZONTAL SECTION
71 × 71 par
SILL
28
9º
28
Figure 4.12 (b) Stormproof casement window details (proportionately scaled).

JOINTING CASEMENT FRAMES

AND SASHES

Sashes

Figures 4.13(a)(b): The frames and sashes for
traditional casement windows are jointed with

mortise- and- tenon joints which, as detailed below,

vary in certain detail between hand- made and

machine- made. As shown in Chapter 3, the ovolo-

moulded intersections of hand- made joints are partly

hand- scribed and – to strengthen the joints – they

have haunching spurs and franked haunches. But

one of the rail’s shoulders on machine- made joints

is completely scribed out (by the scribing head on a