And that SLWA photo is just great! If you need help with WA based History Records, just ask...we might be able to talk to "the right people" over here?
Hello
wce and
MystylerMystyler, many thanks for that offer. Noted.
I have asked your State Library for a better scan [enlargement] of their images.
I personally do not know if the blades are original.
I have two additional observations to make:[1] all the text books say that rotary bladeholders require
a positive rake to the front [a positive angle of attack].
This was a particularly important with mowers that had a 4-point
height system (like many 1950s rotaries) where it was easy for
an un-informed owner to set a negative angle of attack.
[see illustration attached].
With rear-discharge mowers, a negative angle would be
totally undesirable. The grass needs to be cut, then gain velocity
to be 'caught' by the catcher.
The Ings height adjuster appears to only work on the front roller.
That adjuster would only make sense if it was used for transport only,
with the cutting position giving a
positive angle of attack.
wce, can the rear roller be adjusted for height at all?
Images suggest it is fixed.
[2] The colour image of the bases on the wall is interesting.
Note that 3 of the 4 chassis were not Rota-Rolas, but had
4 wheels. I wonder how their height was adjusted?
It is also evidence that Ings offered a
conventional rotary
for
domestic use, rather than for
professional turf maintenance.
The Ings RotaRola was never a great idea for professional
grass cutting of greens, but therein is the charm of the folly.
But there is a catch ...
I have no idea whether the State Library image merely
represents a
publicity shot. I have no idea how the
RotaRola was actually marketed.
I lied ... I have a best guess ...
My best guess is that the State Library image is a red-herring.
The RotaRola was intended to cut and roll a domestic lawn.
Otherwise, it would be quite unique to lawnmower history, and
it would have made a terrible bowling green mower.
Harsh, but true!
Cheers-----------------------
Saucy Jack [aka Jack the Ripper]