E - Fixed Constructions – 05 – B
Patent
E - Fixed Constructions
05
B
E05B 65/10 (2006.01) E05B 9/04 (2006.01) E05B 17/00 (2006.01) E05B 17/04 (2006.01)
Patent
CA 2117996
ABSTRACT OF THE DISCLOSURE A lead-in device is used during installation of a rim-type lock cylinder having a tailpiece in an exit mechanism including a cam having a tailpiece receiving aperture. The lead-in device includes a converging tunnel having an exit aperture sized to match the tailpiece receiving aperture and an entrance aperture that is larger than the exit aperture. The lead-in device also includes a pair of arms positioned to be inserted into the cam aperture to hold the exit aperture in registry with the cam aperture and the maintain the entrance aperture at a predetermined distance from the cam. When the arms are positioned in the cam aperture and the exit aperture is in registry with the cam aperture, the converging tunnel guides a tailpiece inserted into the entrance aperture through the exit aperture and into the cam aperture to engage the cam.
Akers Benjamin H. III
Cohrs Richard B.
Mason James
Swabey Ogilvy Renault
von Duprin Inc.
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