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Joined: Nov 2013
Posts: 6,938
Likes: 316
Forum Historian
Hello Bestseller

That is a treat for members.
The idea of remote air-cleaners was not knew, but their application
to rotary lawnmowers in the 1950s certainly was. This patent recognises
that.

This patent appears to deal with less the air-cleaner, and more with
the 'snorkel' design itself. However, the restrictive aperture in the
air-cleaner body seems to be an important feature of the design.

Thank you, again, for this great information, bestseller.

Cheers
-----------------
Jack


Portal Box 6
Joined: Nov 2013
Posts: 6,938
Likes: 316
Forum Historian
Quote
An advertisement I've found appears to backdate the release of the Model 1 by a couple of months:
June 8th, 1955 - Richmond and Windsor Gazette
Hello bestseller

That is great additional information. I may be able to add something here.
The earliest record I can find referencing the 'new' Rotomos is from
13 April, and then 20 April. These articles indicate that the Rotomo
was pending ... available soon.

[Linked Image]
[Linked Image]

Release: well, Penrith had them in mid May.
[Linked Image]

My best guess is that the first Model 1s became available in May of 1955.
As more records become available, this may be brought back to April.

All very chronological.
-----------------------------
Jack




Joined: Dec 2015
Posts: 61
Trainee
Great find there Jack.

So we've got release dates:

May, 1955 for the Model 1
March, 1957 for the plastic wheeled Model 2 (serial c.75,000)
September, 1957 for the Automatic and 2A
March, 1958 for the Special

Not sure on the Model 3 but assuming it was also around March, 1957.

Adding in patent dates etc would also give some insight into the development cycle.

Think I need to start working backwards from the Model 1 for some further clarity on the chronology. The work done by the guys at the start of this thread has been an awesome help!



Joined: Dec 2015
Posts: 61
Trainee
So I was just cleaning up a Mk.1 blade holder and noticed some interesting differences below the blade support washer (9-003). There was some nice original paint remaining below the washer - almost an exact match for Deep Brunswick Green on the blade carrier, but on the washer it was much paler and very close to Mid Brunswick Green. The blade assembly came off a Model 2 in the 17,000's with a model 1 style base.

Was there a change of colour on the Rotomos from Mid to Deep green around this serial number?

Also, is there any issue putting a Mk.1 assembly on a Model 2 base (clearances etc)?


Last edited by bestseller; 06/01/16 10:45 AM.
Joined: Apr 2017
Posts: 35
Novice
Hi

All this info is a bit to take in. I have parts books etc. titled Victa 125cc Two stroke service manual 12 pages on blue paper, Victa spare parts manual A to O and approx 100 pages, Spare Parts & Price list about 30 pages but no illustrations, another service manual with illustrations. I own a couple of green victas of around 1957 & 1958 I think.

I need educating on downloading this info. I have a couple of Greenfield ride ons and have had heaps of help on these from this site.

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