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Thread: 1922 Goodyear transit bus - photo

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  2. The Following 3 Users Say Thank You to Altair For This Useful Post:

    clydeman (Jun 22, 2022), mwmkravchenko (Jun 23, 2022), nova_robotics (Jun 26, 2022)

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    Supporting Member mwmkravchenko's Avatar
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    So dual front steering axels are not exactly a new idea! Seen them on Cement trucks for 30 plus years. But this is a hundred years ago!

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    Supporting Member Frank S's Avatar
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    Quote Originally Posted by mwmkravchenko View Post
    So dual front steering axels are not exactly a new idea! Seen them on Cement trucks for 30 plus years. But this is a hundred years ago!
    Yes and multiple steerable axles were made possible thanks to Rudolf Akerman's steering principle dating to 1818 later applied to almost all motor vehicles once they came along. Some of the early steam traction engines were still steered by parallel steering having a single rigid axle which was rotated like wagons being turned by a tongue. The Akerman principle steering can be applied to vehicle with 1 or a 1000 steering axles the angularity of the turn radius being slightly different between the inner and outer wheels proportionally changing with each subsequent axle
    Never try to tell me it can't be done
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    mwmkravchenko (Jun 23, 2022), nova_robotics (Jun 26, 2022), Toolmaker51 (Jun 26, 2022)

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    Supporting Member mwmkravchenko's Avatar
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    Quote Originally Posted by Frank S View Post
    Yes and multiple steerable axles were made possible thanks to Rudolf Akerman's steering principle dating to 1818 later applied to almost all motor vehicles once they came along. Some of the early steam traction engines were still steered by parallel steering having a single rigid axle which was rotated like wagons being turned by a tongue. The Akerman principle steering can be applied to vehicle with 1 or a 1000 steering axles the angularity of the turn radius being slightly different between the inner and outer wheels proportionally changing with each subsequent axle
    https://en.wikipedia.org/wiki/Ackerm...ering_geometry

    A little reading and I am smarter now. Thanks Frank!

  7. The Following 3 Users Say Thank You to mwmkravchenko For This Useful Post:

    Frank S (Jun 23, 2022), nova_robotics (Jun 26, 2022), Toolmaker51 (Jun 26, 2022)

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    Supporting Member Toolmaker51's Avatar
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    This Sunday is now Ackermann Day in the Toolmaker51 household; thanks to Frank s and mwmkravchenko, blasting open steering phenomena rabbit hole. Hoping to find Tony Foale grade dissertations on single track vehicles.
    You just don't appreciate auto steering in the manner that a motorcycle tells you what it can do.
    Sincerely,
    Toolmaker51
    ...we'll learn more by wandering than searching...

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    Supporting Member mwmkravchenko's Avatar
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    Quote Originally Posted by Toolmaker51 View Post
    This Sunday is now Ackermann Day in the Toolmaker51 household; thanks to Frank s and mwmkravchenko, blasting open steering phenomena rabbit hole. Hoping to find Tony Foale grade dissertations on single track vehicles.
    You just don't appreciate auto steering in the manner that a motorcycle tells you what it can do.
    It's all Frank's fault. I just looked it up and shared it. The more I learn, the less I know!

    P.S. Mark is my name. I'm guessing I'm young enough to be your son!

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    Supporting Member Toolmaker51's Avatar
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    Well, Good Morning Mark.
    A small group of us share breakfast Saturday mornings; the youngest, yours truly. Conversation topics run a-z.
    I told how just days before, applying online for Social Security was truly easy and straightforward.
    One guy of (unaware of his comparable age) asked "Why are applying so early, the amount is severely reduced?". Said his girlfriend asked about my age having seen two weeks past, loaned a Versa-Lift to raise a big air conditioner into a door transom, delivering it broken down in a trailer, easing getting it into his building. He told her "oh, guess 55 or so".

    I'm 70 come August. Sometime soon, how about adopt you virtually, for carpentry tips? Enclosing my trussed ceiling is next scheduled work, need to build 8 or 10 access panels to get in there just once, blowing a foot or two of insulation. That stages wiring and lighting next to go up.
    Sincerely,
    Toolmaker51
    ...we'll learn more by wandering than searching...

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    Supporting Member Frank S's Avatar
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    Quote Originally Posted by mwmkravchenko View Post
    It's all Frank's fault. I just looked it up and shared it. The more I learn, the less I know!

    P.S. Mark is my name. I'm guessing I'm young enough to be your son!
    Well Mark I will gladly assume all responsibilities in causing you Tm51 and others to delve into any information rabbit holes I can. The same as I do myself when someone posts a thing which I never knew I had an interest in until I began researching that topic. I put myself halfway through college by challenging the final exam up front While I was in the Army. After I had completed my first 12 hours of remote campus studies, I learned I could challenge the exams for 1/3 the cost of the course, if I achieved and 80 percent or better score our professor would offer me an assistant's position to teach one or more of the courses I was paid twice the amount of what the course would have cost for me to take. It got to the point instead of him only being able to offer 2 or possibly 3 courses per 8-week period together we would do 4 to 6 courses. Some of the courses I instructed almost entirely without his presence were Automotive steering systems, Brakes, Chassis and alignment, automatic transmissions, Body and paint, and automotive electrical systems and charging. I basically taught 2 or 3 nights per week while he taught the other 3, on his 3 I attended the courses he was teaching this allowed me to carry nearly triple the hours I would have otherwise been able to accomplish in the same amount of time due to being compensated for helping out.
    If you thought just attending college was hard try having to take the final cold on the spot without any possibility of prior study then try and teach that subject at a level acceptable to the college's standards. One thing you'll do though is absorb 10 times more from doing it that way than ever sitting in a lecture hall or working projects in the shop or lab as a student.
    Last edited by Frank S; Jun 26, 2022 at 01:35 PM.
    Never try to tell me it can't be done
    When I have to paint I use KBS products

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    Supporting Member Toolmaker51's Avatar
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    re Steering, Electricity, Hydrodynamics, Flight, Optics, just about anything with so many intangible elements.
    It always struck me, things created successfully without any automated computational aids, 3-D CAD and wire forms, and big corporate backing; just notebooks, slide rules, physical principles and thoroughly developed sense of visualization.
    Sincerely,
    Toolmaker51
    ...we'll learn more by wandering than searching...

  13. #10
    Supporting Member mwmkravchenko's Avatar
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    Quote Originally Posted by Toolmaker51 View Post
    Well, Good Morning Mark.
    A small group of us share breakfast Saturday mornings; the youngest, yours truly. Conversation topics run a-z.
    I told how just days before, applying online for Social Security was truly easy and straightforward.
    One guy of (unaware of his comparable age) asked "Why are applying so early, the amount is severely reduced?". Said his girlfriend asked about my age having seen two weeks past, loaned a Versa-Lift to raise a big air conditioner into a door transom, delivering it broken down in a trailer, easing getting it into his building. He told her "oh, guess 55 or so".

    I'm 70 come August. Sometime soon, how about adopt you virtually, for carpentry tips? Enclosing my trussed ceiling is next scheduled work, need to build 8 or 10 access panels to get in there just once, blowing a foot or two of insulation. That stages wiring and lighting next to go up.
    Your not quite old enough ! Terrible I know. I'm 53. If I can help in Carpentry no problem. The codes are different in Canada versus the USA. We have to build to snow loads similar to the northern states.

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