Smoclo replaces the headstop on the door frame and apart from the locating bracket which is mortices into the head of the door, the rest of the doors integrity is untouched. It's concealed (apart from a tendon that locates on the hinge edge of the door). The mechanism is triggered by a signal from the mains smoke detector (or power cut). The door can always be opened manually i.e. swing free and once the smoke detector is switched off SmoClo reverts to its normal swing free function.
Also BS EN 1634 to 30 mins
OK fo doors between 750mm and 900mm wide
Doors up for and including 50kg
SmoClo is mains operated, with optional battery back-up and closes the door from any angle.
For those who are interested SmoClo is on display at The Building Centre, Store Street - just off Tottenham Court Road. If anyone would like an introduction please call Royde & Tucker on T: 020 8801 7717 ask for Simon or Mike Stobart. At the moment RT are going through some market research with various sectors and finalising the launch plan with a view to launch the product in Jan 06.
From what I know there's nothing quite like it around - I'd love to hear any different tho.
P.s. Re: Details on the website - next job on the list