Hoover 612 bag preservation

[anthony]

the 612s bag is in excellent condition and i want to keep it that way so i was wondering if anyone had done any thing more permanent than to just bung a paper bag inside for example has anyone cobbled up some kind of fill tube like the ones fitted to the later machines so that paper bags can be fitted properly if so i would really like to see some pictures if possible so that i can do somthing similar