Hartmann Whistle

[Richard CorbettParticipant @richardcorbett50344]

Hello All

Wondered if any of you are familiar with the Hartmann whistle and perhaps know someone who can make one

I have studied how they work, and have an explanatory technical drawing; unfortunately it's a png file so I can't post it here.

It can apparently be made on a lathe in half an hour, but I'm not an engineer, unless it's something that can be mig welded.

Any advice would be appreciated. Thanks in advance.

[Richard CorbettParticipant @richardcorbett50344]

How to obtain one?

[bernard towersParticipant @bernardtowers37738]

That's an interesting project but I think halfnan hour on a lathe is a bit optimistic .

[Michael GilliganParticipant @michaelgilligan61133]

Richard

I am sending a ‘Personal Message’ to you … please respond by eMail with the png file

… it will only take me seconds to convert it.

MichaelG.

[Swarf, Mostly!Participant @swarfmostly]

I would open the file in Paint.net and then do a 'save as' selecting the .pdf option in the pull-down menu.

Best regards,

Swarf, Mostly!

[Richard CorbettParticipant @richardcorbett50344]

Thanks to all so far. As goes the half hour claim, I usually at least multiply such things by 2 or 3, on the vast majority of jobs. Or maybe that's just personal inefficiency.

I don't have access to anything other than a basic smartphone, so can't see how to change png to jpg.

The Schematic is the first one that comes up on a google search, black and white with everything labelled, which is helpful.

[Michael GilliganParticipant @michaelgilligan61133]

Posted by Richard Corbett on 12/11/2022 12:00:49:

[…]

I don't have access to anything other than a basic smartphone, so can't see how to change png to jpg.

.

Please read my previous post, Richard … and eMail the file to me

… alternatively, just tell me where I can find it

MichaelG.

[Michael GilliganParticipant @michaelgilligan61133]

This is the first thing that came-up on my Google search: **LINK**

https://link.springer.com/article/10.1007/s12046-018-0921-z

MichaelG.

[Richard CorbettParticipant @richardcorbett50344]

That's the one. It's a mine of information.

[Michael GilliganParticipant @michaelgilligan61133]

Posted by Richard Corbett on 12/11/2022 18:16:55:

That's the one. It's a mine of information.

.

Oops … I skipped over that one, because the title includes the word Subsonic

I’ve downloaded it and will have a look later.

MichaelG.

[Michael GilliganParticipant @michaelgilligan61133]

[Author]

Posts