A chamber or case in which air is compressed and then released in a sudden blast, used in some industrial or mechanical applications.
From 'blow' (to force air) + 'case' (an enclosure). A descriptive compound term for the container holding pressurized air systems.
Blowcases appear in forgotten industrial machinery and old pneumatic systems—they're a reminder of a time when engineers solved problems with compressed air and clever mechanics before electricity became universal.
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