Picko 18th April 2015, 06:01 PM Does anyone one know what this punch might have been used for. It is marked 'Moorite Shefield.' The sectional profile of the end is a U shape and it's sharpened to a chisel point. Thanks John.
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Grahame Collins 18th April 2015, 07:51 PM I suspect it is not a punch but a specialised cold chisel, similar to a key way chisel but used in making grooves for oilways.
I was told this by an ex Raaeme type that this was done in WW2 when machinery was not available to do such things.
Grahame
Picko 18th April 2015, 07:57 PM That makes sense Grahame. Thanks.
DSEL74 19th April 2015, 12:29 AM Looks a bit like a graver to me but that is just a guess. Used for engraving like on old guns etc it is hit with a small chasing hammer.
matthew_g 19th April 2015, 12:31 AM It looks to me it is a bearing chisel.
Pretty much like Grahame mentioned, But for use fitting and grooving plain bearings after they are poured.
Matt
Grahame Collins 19th April 2015, 08:50 AM Definitely not a graver.My dad was a jeweler had quite a number of them.Typically a graver was a very thin cross section around 3mm square.Most of his gravers were inserted into wooden dome shaped handles but there were a few that fitted to hex shaped brass rods. Most did not exceed 75mm long including wooden handle. The gravers were tapped (rather than struck) with a special light weight hammer with a super thin handle.
The tool shown by the OP is definitely a chisel. The term Moorite could possibly refer to a heat treating process or company from Sheffield as I seem to remember Moorite scrapers from somewhere.
Grahame
Picko 19th April 2015, 09:24 AM In a google search I found that 'moorite' was a trade mark registered by Moore and Wright in 1951.
Thanks for your other thoughts.
KBs PensNmore 19th April 2015, 05:18 PM I would say that it is a cold chisel to form a U along a crack in preparation for welding before the advent of portable grinders.
Kryn
Stustoys 19th April 2015, 07:42 PM Couldn't be for leather embossing could it?
Stuart
Steamwhisperer 19th April 2015, 08:11 PM I have a problem, well obsession really, collecting old engineering books so I looked it up.
I reckon it is what's called a round nose chisel for oil grooves in bearings but actually it more looks like a crosscut chisel for keyways that someone ground a round nose on.
Phil
Ps I can scan the relevant pages if anyone wants.
Picko 20th April 2015, 03:04 PM I have a problem, well obsession really, collecting old engineering books so I looked it up.
I reckon it is what's called a round nose chisel for oil grooves in bearings but actually it more looks like a crosscut chisel for keyways that someone ground a round nose on.
Phil
Ps I can scan the relevant pages if anyone wants.
Thanks Phil. It doesn't show any sign of being hand ground (or at least not any sign of the way I hand grind things).
Couldn't be for leather embossing could it?
Stuart
One of my first thought Stu, but I can't find any reference to Moorite making that type of stuff.
I would say that it is a cold chisel to form a U along a crack in preparation for welding before the advent of portable grinders.
Kryn
Yep similar to the groove cutting etc. Thanks all. I think I'll call it a special cold chisel. I found this item amoung some of my late fathers tools and it could maybe have been his fathers before that. They both worked with wood so I don't know how they came to have it. Thanks again.
John
wbleeker 20th April 2015, 05:35 PM I suspect it is not a punch but a specialised cold chisel, similar to a key way chisel but used in making grooves for oilways.
I was told this by an ex Raaeme type that this was done in WW2 when machinery was not available to do such things.
Grahame
As late as 1978 we were still chipping oil grooves for the slipper bearings on the rolling mill drives at Port Kembla steelworks albeit with an air operated chisel, they then went to doing them with NC machines that ran on a reel to reel paper tape
Will
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