Brakes – Rod
Patent
1984-08-24
1986-02-18
Halvosa, George E. A.
Brakes
Rod
24525, 74110, 74531, 269234, D 8 72, 271171, B65H 5910
Patent
active
045707570
ABSTRACT:
A device for locking a slidable member, including a U-shaped bracket having a central section and a pair of legs extending upwardly from each end of the central section, each of the legs having upper and lower apertures, a lockable sliding member slidably mounted in the lower apertures, and a threaded spindle rotatably mounted in the upper apertures. The spindle includes a large diameter portion and a small diameter portion, the small diameter portion having a central threaded section for threaded engagement with one of the upper apertures and unthreaded end portions, the large diameter portion having a knob at its exterior end. The device further includes a yoke mounted on the spindle adjacent the large diameter portion, the yoke having a pair of camming posts extending outwardly therefrom perpendicular to the axis of the threaded spindle, and a U-shaped cam follower member situated between the legs of the U-shaped bracket. The cam follower member has a median section contiguous with the lockable, sliding member and a pair of flanges extending upwardly from the median section, each of the flanges having a camming surface inclined downwardly in the direction of the spindle for camming engagement with the camming posts, wherein rotation of the knob in one direction causes the camming posts to be moved in a direction away from the knob to thereby create pressure on the adjacent elements to lock the sliding member against any movement.
REFERENCES:
patent: 99133 (1870-01-01), Barth
patent: 685394 (1901-10-01), Crafts
patent: 889768 (1908-06-01), De Leeuw
patent: 1944603 (1934-01-01), Hecker
patent: 3051474 (1962-08-01), Helda et al.
Halvosa George E. A.
Pitney Bowes Inc.
Scribner Albert W.
Sklar Lawrence E.
Soltow, Jr. William D.
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