Lathe tools – what are these for?

[NigeParticipant @nige81730]

I have been sorting through a mass of lathe tools and discovered these. Can anyone shed any light on what these might have been used for.

They have these annotations on them.

[NigeParticipant @nige81730]

[paul raynerParticipant @paulrayner36054]

they look like what sits for making do dah's that attach to the thingamy jigs

seriously though I'm interested myself

Paul

[Chris GunnParticipant @chrisgunn36534]

Could they be form tools that would produce a partial serrated ball end on a screw for example? the plain ones would make the radius and the serrated ones the serration?

Chris Gunn

[MWParticipant @mw27036]

Form tools for either shoulder rounding or ball roughing.

Michael W

[Ian PParticipant @ianp]

I cannot offer a better suggestion than form tools but if they are, how were they produced in the firts place.

I can see how one could grind a plain concave radius, but how would the groove cutter be created?

A grinding wheel dressed to the correct profile would surely not last long, but constant redressing does not seem to be sensible manufacturing method.

Ian P

[MWParticipant @mw27036]

Posted by Ian Phillips on 31/07/2017 22:14:52:

I cannot offer a better suggestion than form tools but if they are, how were they produced in the firts place.

I can see how one could grind a plain concave radius, but how would the groove cutter be created?

A grinding wheel dressed to the correct profile would surely not last long, but constant redressing does not seem to be sensible manufacturing method.

Ian P

 

I think it might be a milling cutter which cut the grooves onto it. It's machined rather than ground. 

There are grooved grinding wheels that they use in the cutlery manufacture for making the grooves onto butter knives. So I could be wrong. 

Michael W

Edited By Michael-w on 31/07/2017 22:20:13

[Jeff DaymanParticipant @jeffdayman43397]

May be shaper tools for making the grooves on thumb latches for tools or guns.

If from 1940's-1970's probably made on a profile grinder.

If from later than 1970's could be profile ground or wire edm'd. JD

(been there, got the T shirt)

[David George 1Participant @davidgeorge1]

Just been using a similar tool to put the curved face on my flat belt pull face.

David

[Tony Pratt 1Participant @tonypratt1]

Posted by Jeff Dayman on 01/08/2017 01:17:12:

May be shaper tools for making the grooves on thumb latches for tools or guns.

If from 1940's-1970's probably made on a profile grinder.

If from later than 1970's could be profile ground or wire edm'd. JD

(been there, got the T shirt)

Agree with Jeff, also have the T shirt.

Tony

[larry PhelanParticipant @larryphelan54019]

There is no doubt in my mind that these items are what we used to call "Wasims"

A Wasim was something we could not identify,or work out what it was for.

[Bob McParticipant @bobmc91481]

They are obviously Scrummage Horn dePhlogistifiers..

[Neil WyattModerator @neilwyatt]

Definitely form tools, and they will only make sense if you know what the shape they form was used for.

They make some sense in the context of being with those specialised WD tools.

Neil

[Speedy Builder5Participant @speedybuilder5]

How about the tools to put serrations onto the end of round bar. Used in a shaper or slotter ?
BobH

[Speedy Builder5Participant @speedybuilder5]

Is this a modern equivalent ?
**LINK**
or
**LINK**
BobH

[Rik ShawParticipant @rikshaw]

They are form tools for turning YGIAGAM’s (your guess is as good as mine) and are ground on kit like this:>>

**LINK**>>

Of all the jobs that I did while in the tool room I found grinding this type of tool the most challenging. Imaging trying to turn a complex profile on a lathe by hand and eye using just the cross feed and the saddle traverse instead of using a profile guide pattern and you will get the idea! – nightmare! >>

Try patting the top of your head and rubbing a circle on your belly at the same time – see?>>

Rik>>

[Ian PParticipant @ianp]

Rik

You should have given a spoiler alert! I wish I'd never seen that Amada machine its just awesome and I want one.

Ian P

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