Abstract: An apparatus and method in a positive feed tool for automatically causing a spindle of the tool to stop retracting. The tool includes a device that automatically moves a movable member away from a differential feed gear when the spindle is retracting, which causes the spindle to stop retracting.

Abstract: An apparatus and method for limiting the transmission of power from a motor to a spindle of a positive feed drill when a high torque situation develops, as well as an apparatus and method for causing the spindle to automatically retract when the high torque situation develops.

Abstract: A positive feed tool having a retract valve. The retract valve is manually actuatable so as to cause an advancing spindle of the tool to retract away from a workpiece. The retract valve is configured to automatically return its unactuated position after the retract valve is manually actuated so as to cause the spindle to once again advance toward the workpiece.

Abstract: An automatic fluid valve (25) includes a drive member (32) having an aperture (43) and a driven member (54). The automatic fluid valve (25) also includes at least one torque transfer member (38) for transferring torque from the drive member (37) to the driven member (54) and at least one elastic member (36) disposed between the drive member (32) and the driven member (54). The at least one elastic member (36) is responsive to a force transferred by the driven member (54). The automatic fluid valve (25) also includes a fluid blocking member (30) disposed within the aperture (43) for selectively allowing or preventing the flow of fluid (100) through the aperture (43). The fluid blocking member (30) is responsive to compression or decompression of the at least one elastic member (36).

Abstract: A paddle fitting tool for drilling a hole through a wing spar inserted into a paddle fitting where the paddle fitting has a top fork with a hole and a bottom fork also having a hole approximately aligned with the hole in the top fork. The paddle fitting tool couples a drill to a nut runner using a saddle. The nut runner is operable to clamp the paddle fitting to securably hold the paddle fitting and wing spar stationary during drilling. The drill is operable to hold a drill bit and to drill a hole in the wing spar. The saddle couples the nut runner to the drill such that the hole drilled through the wing spar is approximately concentric with the hole in the top fork and the hole in the bottom fork of the paddle fitting.

Abstract: The collet-type drill includes improved clamping means having a pressure foot member that is in engagement with the work piece. The pressure foot member is connected with a drill motor and with a feed means. A collet is operably connected to and movable relative to the foot member, and when actuated, connects the drill to the work piece. A clamp bushing has one end pivotally connected with the collet and encircles a cylindrical sleeve that has a transverse slot extending therethrough. The bushing is connected to the pressure foot member. A clamping piston extends through the sleeve and carries a connecting pin that extends through the slot in the sleeve into the clamp bushing whereby the bushing and collet are movable together in response to movement of the clamping piston to force the collet into holding engagement with the work piece.