摘要:
A low profile heat sealing iron for use in applying heat activatable tape in areas of very limited access, such as the sealing of periodic joints in air duct is disclosed. The low profile sealing iron requires only a few inches or less of clearance and has a tape guiding means that feeds the tape to the proper location for heat sealing as the iron is slid along the surface of the member on which the tape is being applied. Preferably, the iron has a handle of adjustable length which permits the sealing iron to be used on ducts measuring six to eight feet or more when the handle is extended, but having a handle only about three feet long or less for easy carrying and handling at other times. A method of using the low profile sealing iron to seal joints in air ducts is also disclosed.
摘要:
A low profile heat sealing iron for use in applying heat activatable tape in areas of very limited access, such as the sealing of periodic joints in air duct is disclosed. The low profile sealing iron requires only a few inches or less of clearance and has a tape guiding means that feeds the tape to the proper location for heat sealing as the iron is slid along the surface of the member on which the tape is being applied. Preferably, the iron has a handle of adjustable length which permits the sealing iron to be used on ducts measuring six to eight feet or more when the handle is extended, but having a handle only about three feet long or less for easy carrying and handling at other times. A method of using the low profile sealing iron to seal joints in air ducts is also disclosed.
摘要:
Tool guide for a knife-edged hand tool for use in the fabrication of an air duct transition from a sheet of fibrous material, said sheet having transversely extending folding grooves therein, for cutting from said panel a wedge-shaped piece of material of predetermined size.
摘要:
The reinforcing wires in a fibrous duct are inserted by simultaneously piercing opposite sides of the duct with elongated piercing means mounted on a reciprocally movable frame. The piercing means may be the reinforcing wires themselves or may be separate structure, such as tubes, which can function as guides for the insertion of the wire before they are withdrawn.
摘要:
Insulation board feeding apparatus feeds successive boards from a pallet stack to a grooving machine to make pre-formed duct sections. The apparatus includes a cable driven elevator assembly, a reciprocating transfer carriage with a plurality of pivotable board-engaging fingers which is reciprocated by an air cylinder, and a guide assembly comprised of two non-driven rollers. The machine of the present invention is simpler, more reliable and less expensive to manufacture than its predecessors.