bolt sleeve

bolt sleeve

[′bōlt ‚slēv]
(design engineering)
A tube designed to surround a bolt in a concrete wall to prevent the concrete from adhering to the bolt.

bolt sleeve

In concrete construction, a tube which surrounds a bolt in a concrete wall to prevent the concrete from sticking to the bolt.
References in periodicals archive ?
A heavy bolt sleeve cap blocks any gases getting past the relief holes.
This particular rifle has the breech bolt with a firing pin sleeve to retain the striker and a breech bolt sleeve cap to hold the assembly together.
The smoothness of the bolt throw can be credited to the unique cartridge depressor and nonrotating bolt sleeve.
It was easily recognized by a two-position safety slide located atop a downward-angled bolt sleeve.
Schmidt's rifle utilized a bolt handle that was attached to an actuating rod in a channel on the right of the receiver with a lug that engaged a helical groove in a bolt sleeve with dual locking lugs.
Based on the legendary Mark V action, the Vanguard has a one-piece machined receiver, fully enclosed bolt sleeve, and three rings of steel surrounding the casehead for an extra measure of strength and structural integrity.
At the rear of the receiver is a polished steel cocking indicator integrated into the bolt sleeve, which provides a visual and tactical reference that the firing pin is in the cocked position.
The receiver, bolt sleeve and floorplate are all engraved.
The only extractor failure I have ever seen under normal use was when the long Mauser extractor on an FN Mauser action separated from the bolt sleeve.
You can tell if it is cocked if the red painted Safety Indicator (128) protrudes from the rear of the Bolt Sleeve (6).
The New Mark V represents no changes in the basic design: oversized bolt sleeve with nine locking lugs and short uplift, no change in the safety.
No bolt sleeve was provided and the safety was fitted directly into the cocking piece and the bolt cocked halfway upon opening and halfway on closing.