This character is a Other Symbol and is commonly used, that is, in no specific script.
The glyph is not a composition. It has no designated width in East Asian texts. In bidirectional text it acts as Other Neutral. When changing direction it is not mirrored. The word that U+237E forms with similar adjacent characters prevents a line break inside it.
The Wikipedia has the following information about this codepoint:
An electric bell is a mechanical or electronic bell that functions by means of an electromagnet. When an electric current is applied, it produces a repetitive buzzing, clanging or ringing sound. Electromechanical bells have been widely used at railroad crossings, in telephones, fire and burglar alarms, as school bells, doorbells, and alarms in industrial areas, since the late 1800s, but they are now being widely replaced with electronic sounders. An electric bell consists of one or more electromagnets, made of a coil of insulated wire around an iron bar, which attract an iron strip armature with a clapper.
Representations
System
Representation (click value to copy)
Nº
9086
UTF-8
E2 8D BE
UTF-16
23 7E
UTF-32
00 00 23 7E
URL-Quoted
%E2%8D%BE
HTML hex reference
⍾
Wrong windows-1252 Mojibake
â¾
Encoding: GB18030 (hex bytes)
81 36 F4 30
RFC 5137
\u'237E'
Bash and Zsh inside echo -e
\u237E
C and C++
\u237E
C#
\u237E
CSS
\00237E
Excel
=UNICHAR(9086)
Go
\u237E
JavaScript
\u237E
Modern JavaScript since ES6
\u{237e}
JSON
\u237E
Java
\u237E
Lua
\u{237E}
Matlab
char(9086)
Perl
"\x{237E}"
PHP
\u{237e}
PostgreSQL
U&'\237E'
PowerShell
`u{237E}
Python
\u237E
Ruby
\u{237e}
Rust
\u{237e}
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