Chisel and Plane Blade Honing Guide Angle Jigs with measurements; Veritas, Marples, and Eclipse.

[Eshmiel]

Here's a well known enthusiast.
https://brentbeach.ca/Sharpen/jigarch.html#myjig1

Ah, the wonderful Brent - I gobbled up his wisdom with glee and smacked me mental lips. His methods might be rather over the top but his descriptions and explanations of what happens to edges and how they can be (re)perfected offers a lot of insight. Even if you sharpen by hand, it's best to be aware of the geometry of the edge and its backing (what supports the edge); and of the need to deal somehow with both wear bevels, not just that/those on one side of the blade.

Here's another interesting fellow, from the European traditions:

https://www.fine-tools.com/pdf/sharpening-chisel-and-plane-blades.pdf

Only 63 pages.

 

[mudman]

T'other way around - people seek patents for things newly invented, in the hopes that they can cash in before anybody else.
They were about much earlier than 1937 if you look at B Beaches site

If they have perhaps invented an electric light bulb or a thing to talk at distances. A lot of the time, people see what others are doing, formalise it as a design and then patent it so they can make money from it.
Like I said, my search was a cursory look but I do expect that there were a lot earlier ones, both patented and not. It is interesting that you accept that they have been around for a long time.

Nothing "horrible" about them

That's definitely not the impression you give.

but they don't seem to feature much in tool history, collections.

So what? Who cares? It isn't proof that they are bad things that should be sealed in a sack with a lot of cats and dogs and hurled into the sea.

R. L. Keith is typical, I bet he hardly sold any at all and there are zero examples in existence. Come to think, it looks like an appalling design, even worse than the Veritas Mk2!
Typical - a long history of clumsy designs made to solve an imaginary problem.

Only in your opinion that has been formed based on nothing other than inherent bias and prejudice. It wouldn't be unusual for patented inventions to never be successful, but it shows they were being thought about.

 

[Eshmiel]

Typical - a long history of clumsy designs made to solve an imaginary problem.

Alas, problems not imaginary to many novice and amateur woodworkers, including me for a significant while before use of a jig (a fettled eclipse) allowed me to experience the joys of a truly sharp edge.

It may be just a preferred habit to continue with the jig. I suppose I could spend 10% of my remaining time on Earth learning how to reduce multi-facets on me bevel as I rub a chisel up and down by hand. But I have other things to learn, of a much greater interest, such as how to please the latest collie-rescue with all sorts of requirements she has. Also, I have taken up bowling, just to meet the extensive range of characters one finds when their average age is 94.

Being a cack-hand is also sometimes just a habit. But for some its a genetic condition. Let us have our jigs!

 

[Jacob]

.......
Like I said, my search was a cursory look but I do expect that there were a lot earlier ones, both patented and not.

There were. Brent Beach shows a few, as I've already mentioned

It is interesting that you accept that they have been around for a long time.

Why would I not accept such a simple fact?

That's definitely not the impression you give.

No it's the impression you've imagined.
I can hardly deny that they existed, why would I, I've owned several myself!

.....

Only in your opinion that has been formed based on nothing other than inherent bias and prejudice.

Nope. Based on practical experience, many years of use and enquiry. I feel that I do actually know what I'm talking about here.

It wouldn't be unusual for patented inventions to never be successful, but it shows they were being thought about.

They've probably been thought about since the stone age and no doubt often used, especially by makers within the industry. But we are talking about typical woodworkers servicing tools in use, not tool makers.
https://www.google.com/search?q=pro...CDgwNTJqMGo3qAIAsAIA&sourceid=chrome&ie=UTF-8

 

[mudman]

There were. Brent Beach shows a few, as I've already mentioned

Why would I not accept such a simple fact?

No it's the impression you've imagined.
I can hardly deny that they existed, why would I, I've owned several myself!

Nope. Based on practical experience, many years of use and enquiry. I feel that I do actually know what I'm talking about here.

They've probably been thought about since the stone age and no doubt often used, especially by makers within the industry. But we are talking about typical woodworkers servicing tools in use, not tool makers.
https://www.google.com/search?q=pro...CDgwNTJqMGo3qAIAsAIA&sourceid=chrome&ie=UTF-8

But you've frequently banged on about them being a modern thing, happening in the 80s.
I never said you denied their existence. Why would I?
I feel that you think you know what you are talking about. How extensive is your practical experience of honing guides? I suspect it runs to just the single wheeled Stanley with the arm that you like to show a picture of, or is it only the simple eclipse type? I suspect it is only the latter and you've never tried any of the others having given up on them early on. Fair enough, you are quite entitled to do so, but the point here is that you really don't need to bang on about it in any thread vaguely related to getting an edge. It's tedious.
So, I expect you'll come back again with more pointless arguments but you can have the last word, I don't care enough to answer you.