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world famous bobski mystery thing, pic #128

bobskibobski Member Posts: 17,868 ✭✭✭
edited February 2007 in General Discussion
found this in a pile of dads old stuff. i cant figure out why it has a 'split rim' insert in the middle axis. what would this go on? what kind of saw?[?]

weirdblade.jpg
Retired Naval Aviation
Former Member U.S. Navy Shooting Team
Former NSSA All American
Navy Distinguished Pistol Shot
MO, CT, VA.
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    11BravoCrunchie11BravoCrunchie Member Posts: 33,423 ✭✭
    edited November -1
    Maybe an OLD table saw that's not powered by an electric motor. Or maybe it's an old wobble dato blade?
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    catpealer111catpealer111 Member Posts: 10,695
    edited November -1
    The split rim is part of an arbor for mounting it on a motor shaft. That kind of mount is usually used for pulleys or gears, but that does look like a saw blade, and a fairly rough cutting one at that. So, I say it is a blade from a small saw mill.
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    hicap47hicap47 Member Posts: 516 ✭✭✭✭
    edited November -1
    Ninja throwing star.....
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    bobskibobski Member Posts: 17,868 ✭✭✭
    edited November -1
    oddly enough, the blade itself is free of the hub. i can spin that hub; yet, its so tight a tolerence, the blade wont fall off.[?]
    but now that you mention it, dad did have a homemade table saw that ran off of a 1/3hp electric motor that ran a fan belt to a saw blade. the tension kept tight by the weight of the motor that was mounted on a hinge and it hung free. could that be what this was used for? i just cant see how it would work on a belt/pully/axle?
    Retired Naval Aviation
    Former Member U.S. Navy Shooting Team
    Former NSSA All American
    Navy Distinguished Pistol Shot
    MO, CT, VA.
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    Dak To 68Dak To 68 Member Posts: 1,404 ✭✭✭✭✭
    edited November -1
    With the size and the spacing of the teeth I'd guess the tool would need high RPM and/or a powerful motor to be effective. It's about the right size for a hand held circular saw. [?]
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    catpealer111catpealer111 Member Posts: 10,695
    edited November -1
    In my experence with thoes types of arbors, the two little hole, they appear to be filled with dirt on yours, are threaded and when you put bolts in them and tighten them down, they push on the blade/pulley/gear(which has a tapered hole that the arbor goes through) and that compresses the arbor locking it onto the shaft.
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    mrseatlemrseatle Member Posts: 15,467 ✭✭✭
    edited November -1
    part of a "weapons grade" Yo-Yo?
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    bobskibobski Member Posts: 17,868 ✭✭✭
    edited November -1
    i agree with dak, the blade is 3/16th" thick. and that isnt dirt in those holes, they are metal studs from the other side of the hub....like alignment studs. the other 2 holes out near the teeth puzzles me too. why for they be there at all, ehh?[?]
    yep, this is surely earns its title as mystery pic.[:)]
    Retired Naval Aviation
    Former Member U.S. Navy Shooting Team
    Former NSSA All American
    Navy Distinguished Pistol Shot
    MO, CT, VA.
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    4440rk4440rk Member Posts: 495 ✭✭
    edited November -1
    The two outer holes are for putting a pin or punch through to hold blade from turning while loosening the arbor nut.
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    buschmasterbuschmaster Member Posts: 14,229 ✭✭✭
    edited November -1
    however the mounting system works, I think it's a sawmill table saw blade cuz of not only the size of the teeth but the space between them. for small peices of raw lumber.
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    chuckchuck Member Posts: 4,911
    edited November -1
    I was circumcised with one of them.[:0][:0][:0]
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    spryorspryor Member Posts: 9,155
    edited November -1
    Almost looks like a blade for an old lawn edger.
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    stankempstankemp Member Posts: 509 ✭✭✭
    edited November -1
    Yer all wrong!
    It's an index gear for a gatling gun . Note the way the projections on the circumference will snap into a pawl when the manually cranked rotation occurs.
    Dado blade? Been watching too much Norm's Yankee Workshop!
    Stan
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    Smokeeater 38Smokeeater 38 Member Posts: 2,735
    edited November -1
    It's an old wobble dato blade
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    bobskibobski Member Posts: 17,868 ✭✭✭
    edited November -1
    how does it wobble?
    Retired Naval Aviation
    Former Member U.S. Navy Shooting Team
    Former NSSA All American
    Navy Distinguished Pistol Shot
    MO, CT, VA.
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    catpealer111catpealer111 Member Posts: 10,695
    edited November -1
    quote:Originally posted by bobski
    how does it wobble?


    Special bent shaft motor. It might vibrate a tad.
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    CaptplaidCaptplaid Member Posts: 20,296 ✭✭✭
    edited November -1
    Got one of them for me Stihl weedeater. Mowes down trees.
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