Traction sheave warning for helicopter rescue hoist systems

Details Traction sheave warning for helicopter rescue hoist systems Traction sheave warning for helicopter rescue hoist systems

1975-06-27

1977-02-01

Werner, Frank E.

Implements or apparatus for applying pushing or pulling force

Step-by-step traveling bar

Pawl actuated

73136A, 212 39MS, B66D 148

Patent

active

040058522

ABSTRACT:
A helicopter rescue hoist-traction sheave assembly including a hoist cable engaging sheave and first housing, a drive motor having a drive shaft mounting the sheave and a second housing mounting the motor and positioned in adjustable relation to the sheave housing, a rocker arm fixed to the motor-mounted housing, an alarm switch located near the rocker arm, and a torque compensating spring attached to, and normally retaining the rocker arm in a neutral position out of engagement with the switch when the drive motor is applying a normal amount of traction to the cable through the sheave and automatically moving the rocker arm to an engaged position with, and closing the switch in the event of a malfunction resulting in a substantial reduction in the motor-applied traction.

REFERENCES:
patent: 3015473 (1962-01-01), Frellsen
patent: 3352152 (1967-11-01), Abraham
patent: 3612486 (1971-10-01), Martin et al.
patent: 3698243 (1972-10-01), Cline
patent: 3780989 (1973-12-01), Peterson

Affiliated with

Also associated with

Rating

Traction sheave warning for helicopter rescue hoist systems does not yet have a rating. At this time, there are no reviews or comments for this patent.

If you have personal experience with Traction sheave warning for helicopter rescue hoist systems, we encourage you to share that experience with our LandOfFree.com community. Your opinion is very important and Traction sheave warning for helicopter rescue hoist systems will most certainly appreciate the feedback.

Rate now

Comments { 0 }

Profile ID: LFUS-PAI-O-1088493