Robert McConnell was a prolific inventor, who lived in Brisbane.
A letterhead of his proclaims him as "Inventor and Manufacturer of: McConnell Roller Skates, McConnell Automatic Gramophone, Sundowner Tent, Maxable, Max Rubber Heels, The Ammunitionless Gun, McConnell Nail Bits, McConnell Gold Cleaner, McConnell Tin Concentrator, McConnell Scrub Planes, McConnell Mitre Box, McConnell Frictionless Pump, McConnell Stringer Cutter, McConnell Coat and Vest Combination, McConnell Cistern, etc, etc".
McConnell's patents span the years 1927 to 1951. The Planes and Nail Bits were patented in 1942, in the middle of WWII when imports of quality tools was impossible.
Thanks to Rod Thomas for providing examples from his collection.