No. (At least not if the cabin is long enough to take half the lenght of type 135)Are these tube-triangle-loops secured to the inside of the cabinet?
The tube (one per film) is to make contact between weight and film. The tube may even act as weight itself, but then still the loop with another weight is necessary to hold the tube nicely in oosition.
Thus you have one tube located as in lowest position in your sketch, but with the triangle facing downwards, to the bottom of the dryer. In that angle of that triangle should sit the weight. It strectches the film and keeps the roll from turning over.
In case the cabin should not be long enough for such, then the film indeed must be hung in zig-zag, as festoon using three tubes. Quite some hassle, and then the problem would come up of the tube acting as hang-up hook for the film to touch the emulsion side... A kind of undercut tube must be used at that position.