Boxframe windows and double- hung sashes 53
through the boxframe window and sashes at 4.1(a)
above, are numbered to relate to the separate parts in
the following list:
- Pulley stiles, 94 × 20mm par for 34mm- thick
sashes (or 114 × 20mm, if thicker sashes of
44mm par are used); - Pulley- stile head, same sizes as above – but minus
Common parts and sizes
Figures 4.1(b)(c)(d)(e)(f )(g): The vertical- and
horizontal- section views at Figures 4.1(b) to (g) below,
A
A
DD
C
EE
C
B
B
FF
Figure 4.1 (a) Exterior elevation of a boxframe window,
with section- lines indicating the separate, detailed views.
11
2
5
16 16
4
15
10
17
3
Figure 4.1 (b) Vertical section A- A showing (2) pulley- stile
head; (3) square- edged draught bead; (4) inner- lining
head; (5) outer- lining head; (10) wagtail; (11) top sash
rail; (15) staff bead; (16) glue blocks; and (17) sash
pulley wheel.
15
12
6
Figure 4.1 (c) Vertical section B- B showing (6) the
grooved, rebated, weathered and anti- capillary throated
sill; (12) the bottom- rebated and anti- capillary throated
bottom- sash rail; and (15) staff bead. Note that, because
of modern silicones and sealants, the underside grooving
of boxframe- sills can be omitted nowadays.
13 13
Figure 4.1 (d) Vertical section C- C showing (13) the
rebated- splay meeting rails. Note that the main reason
for the rebate was to stop intruders opening the sash
fastener(s) with a thin- bladed knife- like instrument.