| 摘要 |
<p>A portable abrading tool having a shoe which is driven relative to a carrying body by a contained air motor to perform an abrading operation, and in which a flow of air discharged from the motor passes through a conduit structure projecting from an end wall of the tool body, with the body having a flange projecting therefrom beneath the conduit structure and carrying at its underside a seal part slidably engaging the shoe structure to deliver air and abraded particles from a passage in the shoe through the seal part and upwardly through a connected secondary conduit for delivery into the primary stream from the motor, in an aspirator relation inducing the secondary flow by the energy of the primary stream.</p> |
