| 摘要 |
An adjustable safety guide for a skeleton type caulking gun having an end-ring held against the thrust of a trigger-driven push rod by an open-frame of upper and lower arms. The adjustable safety guide automatically prevents a cartridge from accidentally dropping through the open frame during loading operations while preserving access from both the left hand side and the right hand side of the caulking gun; it comprises a flexible half-sleeve reaching longitudinally along the open frame with the upper and lower margins respectively looped around the upper and the lower arms in the preferred securance.
|
