A Continuous steering box- any still about?

I read an interesting article from Jan 45, no 2281

To power a hand shaper they used a "continuous steering box" from a Trojan Utility vehicle which is a pinion inside an internally cut gearwheel

You can see the offset steering shaft into the circular box behind the clapper slide

This geared the lineshaft down by 4.5-1

Do any of you know of a current steering box type mechanism which uses the same principles and which could be useful for turning rotary into horizontal motion (old landrover mk1kinda thing)

Thanks for any replies

Ady,

It doesn't quite answer your specific question, but; reading between the lines, I'm pretty sure you will find this worth reading.

MichaelG.

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P.S. ... That photo is amazing;

I particularly like the electrical switchgear at lower-left.

Bit like one of these?

**LINK**

Honda industrial engine

For anyone interested in the Steering Box that Ady mentioned ...

Here is an excellent article about the Trojan vehicle

MichaelG.

> Trojan Utility vehicle

Not exactly the 'Sports Utility Vehicle' of its day - cheap as chips with tiny engine and pressed steel wheels. It was my favourite car in the Brooke Bond card collection!

Neil

How about a lawn mower of the arm strong, push type there is a internal gear in each wheel, and the other gear is on the blade shaft, I'v got one in the shed, been wondering what to do with it for a few years now. Ian S C

Ady

Most current or recent vehicles have rack and pinion steering so I doubt you will find anything like you describe.

A pinion inside an internal gear does not have any special connection with converting rotary to linear motion. In your photograph that appears to be done with a crank and link.

Is your question aimed at the problem of trying to find a robust reduction gearbox? or are you trying to find a readily available linear (oscillating?) movement?

Pneumatics or hydraulics can be used to get straight line power.

Ian P

Is your question aimed at the problem of trying to find a robust reduction gearbox? or are you trying to find a readily available linear (oscillating?) movement?

Robust reduction is good... in the same plane

Edited By Ady1 on 10/04/2014 01:13:56

As I pointed out before Ady, the reduction gearboxes on some of the Honda (GX160 type) engines are exactly the same as that you refer to.

It doesn't take much to knock up a drive arm as per the steering box.

Approx reduction 6:1

Ady,

Going back to your oriiginal post, I see reference to a "continuous steering box" ... which begs the question: What other sort would you want? [discontinuous steering would seem to be a bad idea].

This may be a typo, or may be a jargon term of which I am unaware.

Can you enlighten me ?

MichaelG.

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P.S. Lofty's Honda unit looks ideal for the job.

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Interesting to see some of the later Trojan vehicles.

MichaelG.

Yes, and the Wikipedia article is a little more sanguine about the ride quality than the 'unbiased' Autocar review!

Neil

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... Ady ?

MichaelG.

That was the the term in the original ME article so that was the one I stuck with

Seemed easier to say than "reduced gearing whirlygig thingummybob"

Thanks

MichaelG.

How about a lawn mower of the arm strong, push type there is a internal gear in each wheel, and the other gear is on the blade shaft, I'v got one in the shed, been wondering what to do with it for a few years now. Ian S C

I've just realised that I have an ancient push-mower which has been lying in the garage for decades

Will have a look at it

Thanks to all

On Straight lines...

From memory The Peaucellier–Lipkin linkage is the best so far using a bar linkage.

**LINK**

Regards
Jonn

John,

Did you see the link that I posted on 09 April ?

I think you will enjoy reading

MichaelG.

I suspect I missed It Michael

Regards
John

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I should have been more specific ... the one at 10:20:20

MichaelG.