Abstract: A heat resistent seal having a plurality of finger-like members (14) which press against the outer peripheral surface (23) of a rotating cylinder (16). The seal includes several seal sections (10), each comprising a thin spring steel plate (22) having a length in the range of about 30 cm to about 92 cm. Each section has a plurality of finger-like members (14) formed by making cuts (13) of about 5 cm in length along one edge (11) of the section (10). The seal sections are attached to a windbox (17) with the finger-like members (14) pressed against the rotating cylinder (16) of the rotary kiln. The finger-like members (14) of the seal are arranged to press against the outer peripheral surface (23) of the rotating cylinder (16) and apply a substantially even and constant force around the outer peripheral surface (23) of the rotating cylinder (16).

Abstract: A replaceable longitudinal seal for a rotary combustor formed from a circular array of pipes separated by perforated webs comprise a flat bar extending radially outwardly from ever other pipe with an angle bracket positioned on and welded to each flat bar so as to compensate for out of roundness of the combustor, a plurality of thin resilient strips of stainless steel removably fastened to each angle bracket and extending outwardly from said flat bar at an angle of approximately 60.degree. and a plurality of arcuate shoes disposed proximate a circle scribed by the distal margins of said thin strips to form a dependable seal which will deflect when encountering debris on the shoes and portions thereof can be easily replaced if damaged by the debris.