Abstract: A shell-and-tube heat exchanger includes a shell which defines a passageway extending from a first end to a second end of the shell, a resilient tubesheet having an outer peripheral surface in sealing engagement with an inner peripheral surface of said shell proximate the first end of the shell, the resilient tubesheet supporting a plurality of tubes which extend within the passageway toward the second end, a cap which closes the first end of the shell in a manner in which a space exists between the cap and the resilient tubesheet, and a seal which seals a portion of the inner peripheral surface of the shell between the resilient tubesheet and the first end from the space between the cap and the resilient tubesheet.

Abstract: A shell-and-tube heat exchanger includes a shell which defines a passageway extending from a first end to a second end of the shell, a resilient tubesheet having an outer peripheral surface in sealing engagement with an inner peripheral surface of said shell proximate the first end of the shell, the resilient tubesheet supporting a plurality of tubes which extend within the passageway toward the second end, a cap which closes the first end of the shell in a manner in which a space exists between the cap and the resilient tubesheet, and a seal which seals a portion of the inner peripheral surface of the shell between the resilient tubesheet and the first end from the space between the cap and the resilient tubesheet.

Abstract: Sign mounting and tensioning apparatus, method and system for beadles signs comprises fired and floating rails adapted to removal y receive and hold elongated locks having sign edges wrapped around non-rotating inserts, and tensioning means for tensioning signs locked in the rails, which tensioning means may be a series of short levering mechanisms spaced along and connectable to the floating rails.

Abstract: Sign mounting and tensioning apparatus, method and system for beadles signs comprises fired and floating rails adapted to removal y receive and hold elongated locks having sign edges wrapped around non-rotating inserts, and tensioning means for tensioning signs locked in the rails, which tensioning means may be a series of short levering mechanisms spaced along and connectable to the floating rails.

Abstract: A framing system for mounting flexible or bendable signs to side panels (20) of cargo vans without piercing the panels includes framing members (2) with open U-shaped channels (10) adhesively applied to panels and cover members (6) pressingly engageable in said channels to hold signs (30) within a frame defined by the framing members.