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not sure how many would remember the Esso add that "put a tiger in your tank" and the tiger tail you could get to tie onto your petrol cap and having it flap in the breeze
G'day Norm
That's brilliant!
I wasn't aware of the tiger tail. In the day petrol companies tried
to differentiate themselves - that one had a better product. I guess
this harks back to the days when fuel was less quality controlled -
like Pratt's Perfection Spirit... or Plume ... or Caltex Power Chief...
Advertising centered on the best product.

[Linked Image]
[Brisbane folk might recognise Petrie Bight]

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Oddly enough I still have four of the original bolts that were used to fit the Southern Cross blades, but by today's standards they look a tad dangerous. Two of them are slightly bent. In fact I suspect they would bend long before they would ever break, which perhaps made them safer than today's high tensile bolts, which are more prone to sudden and catastrophic failure if you hit something hard.

Hi vint-mow - this is a great post, and I am compelled to say something
about blade lawnmower blade/bolt sets.

In the very early 1950s the issue was with electric lawnmowers -
fatalities by electrocution were reported. By the late 1950s, the
issue was injury (not fatality) caused by blades becoming projectiles,
or skirt-less bases becoming 'toe cutters'.

In 1968 an historic Code of Safety was implemented - and led by mower
manufacturers.

The reversible blade carried a problem - most folk would save money by
reversing the blade without replacing the fixtures.

I also feel that the very nature of the rotary lawnmower has changed.
In the early days, domestic lawnmowers were advertised as being able to cut
any height of grass. Quite irresponsible in hindsight...

The best advice, today, is to replace both blades and fixtures at the same
time. Bar blades offer a safety advantage here, but the concept has its
own disadvantages...

That's an interesting observation about screen hole diameters!
Many thanks vint-mow for spicing these forums!

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Jack