IP JESSIE

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Phil.P
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Re: IP JESSIE

Post by Phil.P » Tue Jan 12, 2021 8:05 pm

Presumably, Atco were working on an early form of hover mower!?
8)

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ge_rik
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Re: IP JESSIE

Post by ge_rik » Wed Jan 13, 2021 11:04 am

Phil.P wrote: Tue Jan 12, 2021 8:05 pm Presumably, Atco were working on an early form of hover mower!?
8)
Too subtle for me, Phil :dontknow:

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philipy
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Re: IP JESSIE

Post by philipy » Wed Jan 13, 2021 12:33 pm

ge_rik wrote: Wed Jan 13, 2021 11:04 am
Phil.P wrote: Tue Jan 12, 2021 8:05 pm Presumably, Atco were working on an early form of hover mower!?
8)
Too subtle for me, Phil :dontknow:

Rik
I think he has conflated "he worked at Stansted aerodrome" with " mowers for Atco." :lol: :lol:
Philip

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ge_rik
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Re: IP JESSIE

Post by ge_rik » Wed Jan 13, 2021 1:10 pm

philipy wrote: Wed Jan 13, 2021 12:33 pm
ge_rik wrote: Wed Jan 13, 2021 11:04 am
Phil.P wrote: Tue Jan 12, 2021 8:05 pm Presumably, Atco were working on an early form of hover mower!?
8)
Too subtle for me, Phil :dontknow:

Rik
I think he has conflated "he worked at Stansted aerodrome" with " mowers for Atco." :lol: :lol:
Oh ..... I geddit now .... :lol:

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ge_rik
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Re: IP JESSIE

Post by ge_rik » Wed Jan 13, 2021 1:11 pm

BTW - Just heard back from Ivan. He says they are M3 grub screws. I'll try again. Maybe what I thought was an M3 was something else when I tried putting one into the hole.

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GTB
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Re: IP JESSIE

Post by GTB » Fri Jan 15, 2021 8:23 am

ge_rik wrote: Wed Jan 13, 2021 1:11 pm BTW - Just heard back from Ivan. He says they are M3 grub screws. I'll try again. Maybe what I thought was an M3 was something else when I tried putting one into the hole.
There are two ISO 3mm threads, coarse and fine, but the coarse one is the common one and so just termed M3. I've only seen the coarse thread on grub screws.

A squizz at this site will show you why a jam jar full of fasteners of indeterminate origin could contain a lot of screws that look much the same........

https://www.gewinde-normen.de/en/index.html

One of my brothers inherited my father's shed contents and I'm fairly sure some of the jam tins of fasteners had come from my grandfather's shed, certainly some of the hand tools went back at least that far.

Regards,
Graeme

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Jimmyb
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Re: IP JESSIE

Post by Jimmyb » Fri Jan 15, 2021 10:16 am

To identify threads accurately you need three things:

1) A set of thread gauges preferable 55 degree and 60 degree.
2) A Micrometer of vernier calliper
3) And most important something that will identify the measurements:
s-l1600.jpg
s-l1600.jpg (97.72 KiB) Viewed 5762 times
My Zeus is a little older but invaluable.

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