Door Closers Door closers are a health and safety requirement of the EU Construction Products Directive for security, privacy and most importantly as a precaution against the spread of fire and smoke. Rack and pinion and cam action are just some of the types of door closers available. With the development of new products Adams Rite is using their experience and innovation to produce quality products for existing and new markets. Downloads Adams Rite - Door Closers (.pdf, 897 kB) Transom Door ClosersDesigned to provide a controlled closing of single or double action aluminium doors. Floor SpringsDesigned to provide a controlled closing of single or double action timber, steel or aluminium doors.