Patt 223

(above - Patt 743 - later model, below early model)

DATES: Pattern.223 was introduced in the Summer of 1963. The 223 filled the gap between the Patt.123 and the larger Patt.243.
From Tabs 21/1, April 1963: "The Patt.223 is of great interest because is has such a wide beam angle (60°) in the fully open position. At a time when it begins to be logical to use Fresnel spots instead of floods for cyclorama and background lighting this lantern should prove to be very suitable for this task."

Pattern.743 was introduced in 1971, when the tungsten-halogen lamp was first manufactured (to Rank Strand's specification). Discontinued in 1983.

Beam Spread : Tenth peak angle: 15° spot to 80° flood, soft-edged.
½ peak angle: 8° spot to 60° flood, soft-edged.
Lamphouse: Steel pressings with diagonally-hinged, die-cast lens front.
Fork: Mild steel, reversible, with friction-disc tilt clamp and three-eighths inch Whitworth bolt and wingnut for suspension and swivel clamp.
Lens: 200mm diameter short focus Fresnel, recessed mounted.
Lampholder :
GX9.5 for Patt. 743
P.28 medium prefocus for Patt. 223
fitted with 1m external length of 3-conductor, sheathed heat resisting cable.
Reflector : 150mm diameter spherical, polished anodised aluminium.
Adjustment : Lead-screw focus from front and rear.
Colour Frame : Double die-cast runners fitted, one 215mm square metal frame for Cinemoid supplied.
Lamps :
Patt. 743 : 1000W max, GX 9.5 base. 55 l.c.l. Class T/9 recommended for stage use.
Patt. 223 : 1000W max. P28 base. 55.5mm l.c.l. Class T/6 recommended for stage use.
Accessories :
Four door rotatable barndoor, 23 633 00
Additional metal colour frame, 27 632 00
320mm length, 345mm max width. 6.8kg