EiEl
CCC-B-490F
u~
SUPESSEOINC
GGG-B-490E
24 September 19S4
PBOEW SPECIFICATION
BIxXRB, TACRLB (BIANIIAAND -N ROPE)
This qecif ication ie approved fOr uee by al1 Department
❑ and AgenCiee of
the Department
of 0efCiIi8t3.
1.
SmPK AND CLASSIFICATION
1.1 *.
Thie epscification covern eingle, double, and multiple eheave
tackle blocke for use with manila and nylon rope.
1.2
Qa
ifi~.
The
blocke ehall be of tho following types and ❑tyles,
ao
spacif i% (eee 6.2):
Type I
- Nontoppling blocks.
~ II - Ordinary blocko.
‘fypa 11. - elocko, tackle (awning pulley).
~ III - Snatch
blocke, safety locking.
Type IV - Safety blocks.
Style 1 - Single sheave (applicable to typee II, III, V).
Style 2
- Oouble sheave [applicable to typee 1, II, IV, V).
Style 3
- Triple sheave (applicable to typm I, II).
Beneficial ccamente, recramendationa, additions, delotiono, clarification, and
any data which WY improve thin document ehould be
sent to:
USA Belvolr
Research, Oevelopnant md Engineering Center, ATTN:
STRBE-TSE, FOrt BelvOir,
VA 22060-5606.
WC N/A
Fsc 3940
OISTRIBOTI ON STATS14SNT ~.
Approved
for public releaae, distribution is unlimited.
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