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Monday, April 28, 2025
Sign of the Day
expansion-shell anchor bolt
The sign for 'expansion-shell anchor bolt' uses two hands to depict the bolt's function. The dominant G-hand represents the bolt being twisted, while the non-dominant C-hand, representing the hole or material, expands outwards (to a 5-hand) to show the shell's expansion and…
B1 Technical Noun British Sign Language (BSL) Technical
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Dominant G-hand, non-dominant C-hand opening to 5-hand
Dominant hand twists into non-dominant, which then expands
Construction, engineering, DIY contexts
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Watch, build, and feel the movement
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How to form the sign
- Form non-dominant C-hand at chest, palm facing dominant
- Form dominant G-hand, palm down
- Insert dominant G-hand into non-dominant C-hand opening
- Twist dominant hand, simultaneously open non-dominant to 5-hand
Coach prompt
Practice the two-handed movement carefully
Signature details
Handshape
Dominant G-hand, non-dominant C-hand opening to 5-hand · Code G, C>5
Dominant hand
Either
Symmetry
Asymmetric
Contact
Touch
Palm orientation
Dominant palm down/in, non-dominant palm facing dominant
Eyebrows
Neutral
Eye gaze
Forward
Head movement
None
Mouth morpheme
None
Body shift
None
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[en] We need an expansion-shell anchor bolt for this heavy shelf. / BSL: HEAVY SHELF, WE NEED EXPANSION-SHELL ANCHOR BOLT
The sign visually represents the bolt's mechanical action
Best fit: Construction, engineering, DIY contexts
Mirror focus
Practice the two-handed movement carefully
Catch the slip
Ensure the non-dominant hand expands fully; the twisting motion should be clear
Use it today
[en] We need an expansion-shell anchor bolt for this heavy shelf. / BSL: HEAVY SHELF, WE NEED EXPANSION-SHELL ANCHOR BOLT
Common mistakes: Confusing with 'bolt' or 'screw' signs without expansion
When not to use it: Referring to a regular screw or nail; precision is key
Regional note: Minimal
Cultural note: BSL often uses mimetic signs for technical objects
1.[en] Install the anchor bolt. / BSL: INSTALL ANCHOR BOLT
2.[en] Strong bolt needed. / BSL: STRONG ANCHOR BOLT NEEDED
3.[en] What bolt is this? / BSL: THIS BOLT WHAT?
What is the BSL sign for expansion-shell anchor bolt?
The BSL sign depicts the mechanical action of the bolt. The dominant G-hand twists into the non-dominant C-hand, which then expands to a 5-hand, showing the shell opening and securing.
How do you sign expansion-shell anchor bolt in BSL?
Hold a non-dominant C-hand (representing the hole/material) at chest level. With your dominant G-hand (representing the bolt), twist it into the opening of the C-hand, simultaneously expanding the non-dominant hand into a 5-hand.
Is expansion-shell anchor bolt one-handed or two-handed in BSL?
It is a two-handed sign in BSL. The dominant hand performs the twisting action of the bolt, while the non-dominant hand represents the expanding shell and the material it's fixed into.
What handshape is used for expansion-shell anchor bolt in BSL?
The dominant hand uses a G-handshape, representing the bolt. The non-dominant hand starts as a C-handshape and then opens into a 5-handshape, illustrating the shell's expansion.
How does expansion-shell anchor bolt differ from similar signs in BSL?
This sign is distinct from general 'bolt' (often a simple twist or drive motion) or 'screw' (often a dominant F-hand twisting). The key difference is the non-dominant hand's active expansion from C to 5-hand, specifically mimicking the 'expansion-shell' mechanism.
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Word web
Anchor bolt
expanding bolt
shell anchor
Fastener
construction
drilling
fixing
Bolt
Screw
Fastener
Construction
Drill
Tool
The sign for 'bolt' (general) often involves a dominant F-hand or G-hand twisting, but usually lacks the non-dominant hand's expansive action. 'Screw' typically uses a dominant F-hand twisting into an imaginary surface or the non-dominant hand. The 'expansion-shell anchor bolt' sign uniquely incorporates the non-dominant C-hand opening to a 5-hand to specifically illustrate the shell's expansion, differentiating it from more generic fasteners
Construction
hardware
mechanics
tools
fasteners
Anchor bolt BSL
expansion bolt sign
shell anchor BSL
fastener BSL
Tools
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