I believe it is the the symbol of the "Österreichischer Männer-Kranken-Unterstützungsverein"; this translates to "Austrian Men's Health Benefits Organization" or "Austrian Sick Benefits Club" I believe literally.
The shield with the flames I have not yet been able to explain if it is related to that organization, but have found some badges with the shield, just not the flames. The organizations other symbol commonly seen is a tower of some sort.
This semi-recent German articles refers to the fund was originally exclusively to benefit miners as a form of health insurance or predecessor to todays Social Security style fund, but also had a 'social club' aspect to it. There is still some active clubs that prominently display the "KOV" today but not in the US that I could find and the original club likely won't last much longer per the linked articles. Another ref.. Note: Use Google Chrome to view these links in this paragraph to translate them automatically.
There are some American references to the club via the Gottschee(a reference to an area now in Slovenia) clubs in America. But my initial impressions are they are different but participated in events together.