Tapping head

Hi Gentleme's

Has anyone heard of the above Company. I have received a tatty tapping head for a fiver which seems to work but has lost its outer cover. I cant quite figure the auto mechanism, some springs missing?

Mike Smith

Pawson Tapping Head - in 2012 there was a forum post asking for information. One of my club members passed one to me yesterday asking if I could track down any information on it. The company first advertised the head in 1943 and I have traced some brief operating instructions. If Robin Teslar still has the Pawson and would like a copy please ask him to contact me.

Good grief - My dad had the body of one of these in his workshop for years and years, the name rang a bell and I have no idea where it came from, only that it went into the bin 22 years ago.
BobH

Edited By Frances IoM on 01/08/2018 20:37:08

You can, or soon will be able to, PM him.

No posts for a couple of years but he may still look in on the forum - and/or may even receive an email noification of a personal message on the forum.

Espacenet is a wonderful service: **LINK**

https://worldwide.espacenet.com/publicationDetails/originalDocument?CC=GB&NR=139628A&KC=A&FT=D&ND=3&date=19200311&DB=EPODOC&locale=en_EP

MichaelG.

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I was looking this morning, and it appears that the Vertex version is 'remarkably similar'

MichaelG.

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Impressive demonstration, here: https://m.youtube.com/watch?v=cEJyEuHtMhg

Edited By Michael Gilligan on 02/08/2018 12:26:11

I bought a tapping years ago from Chronos,I think,for a job that never came along. I think I have used it about 3 or 4 times over the last 12 years ! For most jobs,it,s not worth the bother of setting it up,but it seemed like a good idea at the time ! Does this ring a bell?.

I got one from messrs Rotagrip and used it to tap 192 M4 holes in silver steel with a form tap. This was for the roller slides for my bench draws. I think it was worth it in the value of the taps I might have broken doing the job by hand . Since then, it's been used to tap about a hundred M6 holes in aluminium and a few other jobs.

Basically, they're not a lot of use most of the time, but as soon as you get a project that needs half a dozen or more threaded holes on a flat surface, they are a very useful tool to have. Had I known that 20 years ago, I'd have only bought spiral point/flute and form taps, since they can be a bit fraught with hand taps!

Seem to have got a number of members interested in this - have not used the forum much so not sure how to pass on the information that I have. It is only a one page scan from a copy from BSA tool catalogue 1952. Privat Message me with contact details if you want a copy -  I have not had a chance to 'play' with it yet but can let you know how I get on.

Edited By JasonB on 20/09/2018 11:17:43

I used a Pawson tapping head when apprenticed as an instrument make,main use was 2 to 8 BA in aluminium,brass and cast iron, i think max capcity was around ) ba or 1/4 bsf.nice machine to use rarely broke taps ,having a nice smooth reversing action,the machine I disliked was the Archer tapper,a larger thing with a capacity of 3/8 whit or maybe a little larger.the forward reverse action was harsh and snatched A long time ago but I still remember them,in two weeks time its 60 years since I started work,Still have all my English made tools in their Moore and Wright cabinet,The Pawsond head had a cover which was either pressed or spun aluminium alloy similar but smaller than the magneto covers on Villiers engines.

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I will be happy to convert it to jpg [the only format we can post here]

... Thanks.

MichaelG.

[sending eMail]

Mike Smith - Thanks Nigel for the user information on the Pawson Tapping Head. I am 82 and have always been interested in small engineering tools and what they were used for - so much of this information was never written down and as equipment was replaced how to use the old tools were forgotten. The clever part of the Pawson design seems to be the facility to change the four springs to adjust the torque. The cover on the later versions had four spare springs on the top - two strong and two weak.

Failed to paste my scan of the advert - will send to Michael G for him to try.

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I eMailed you yesterday, at 08:17 ... so just reply to that, with the scan attached.

Should be no problem.

MichaelG.

oldanrusty

I have re-sent my eMail this morning

... having heard nothing from you, I assume the original was in your junk mail

MichaelG.

Courtesy of 'oldanrusty'

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