A GRAVITY CORER RELEASE MECHANISM: DESIGN AND TESTING.

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Abstract:

The corer release mechanism is a device which serves as the vehicle that permits free-fall coring. Analysis of existing release mechanisms has led to design of a versatile device which employs an upper lever arm safety that enables it to be armed after the corer has passed below the water surface. A quick-acting wire clamp is also included to assist in recovery procedures. The gravity corer operational tests that have been made provide a means of comparison when the device is and is not used. Variable free-fall heights were used with five different gravity corers and for four of the tested corers best results were attained with a free-fall setting of five to seven feet. author

Author(s):
Van Brackle, Vernon Lamar, Jr
Author Organization(s):
NAVAL POSTGRADUATE SCHOOL MONTEREY CALIF
Descriptive Note:
Master's thesis,
Pagination:
0063

Security Markings

DOCUMENT & CONTEXTUAL SUMMARY

Distribution:
Approved For Public Release

RECORD

Collection: TR
Subject Terms
Communities of Interest:
No COI(s) Identified
Descriptor(s):
(*OCEAN BOTTOM SAMPLING, SUSPENSION DEVICES), (*RELEASE MECHANISMS, DESIGN), MECHANICAL CABLES, COUPLINGS, LOCKING FASTENER DEVICES, SAFETY DEVICES, DROP TESTS, PERFORMANCE(ENGINEERING), THESES
Field(s)/Group(s):
Physical and Dynamic Oceanography, Couplers, Fasteners and Joints
Keyword(s):
GRAVITY CORERS
Report Date:
1969 Oct 01