On buses up to 1964 the shaft is spring loaded so you can disengage the wiper arm and swing it into the middle, to open up the windows.
These really are the best available on the market. From Wolfgang International.
To use you simply pully the wiper out and rotate to park against the one eyed duck (available separately). To engage just reverse the process.
For 65-67 you can only use the adaptors that are mounted on the outside, available here
$395.00
BlazeCut are the leaders in fire suppression systems. Made in Europe We supply as 2m or...
$205.00
Kit is a bolt on replacement of the original . Remove all the old parts...
$60.00
Wiper Arm and Blade (silver colour) for splits OEM: 211 955 407 (x1) + 221 955...