[AR] Re: Tool name?

  • From: Mike Ross <mross77062@xxxxxxxxx>
  • To: arocket@xxxxxxxxxxxxx
  • Date: Sun, 19 Jul 2020 16:53:29 -0500

At NASA the EVA guys called these push-pulls, and I think they were all T-handles.  Both a name and operating instructions in one.


Mike Ross

On 7/19/20 2:16 PM, William Claybaugh wrote:

David:

No, what I require is a pin designed for shear.

When I was a racing mechanic they were called  “pull pins” but I didn’t recall that until after this conversation.

They were also used differently in racing cars (as temporary, cleco-like tooling) than I have seen them used in aerospace (more permanent, pull before launch sort of fasteners).  But that all likely just a product of my individual experience.

Bill


On Sun, Jul 19, 2020 at 12:25 PM David Gregory <david.c.gregory@xxxxxxxxx <mailto:david.c.gregory@xxxxxxxxx>> wrote:

    It does sound like what Bill is describing, except those are
    properly pins, which is to say meant to take loads in shear. 
     Bill it sounds like you're describing something that can support
    tension loads between two flat surfaces?

    David

    On Sat, Jul 18, 2020 at 3:40 PM Ben Brockert <wikkit@xxxxxxxxx
    <mailto:wikkit@xxxxxxxxx>> wrote:

        I think in general it is a "ball lock pin" and T-handle is one
        option
        for it.
        
http://www.fairlaneproducts.com/store/pc/Quick-Release-Ball-Lock-Pins-c1178.htm

        On Sat, Jul 18, 2020 at 10:26 PM William Claybaugh
        <wclaybaugh2@xxxxxxxxx <mailto:wclaybaugh2@xxxxxxxxx>> wrote:
        >
        > “T-handle locking quick release pin”?  Not a name I’ve heard
        before.
        >
        > But that is it: contact me offline and we can discuss coming
        out to the flight test.
        >
        > Bill
        >
        > On Sat, Jul 18, 2020 at 2:46 PM Michael Ding
        <michael.ding313@xxxxxxxxx <mailto:michael.ding313@xxxxxxxxx>>
        wrote:
        >>
        >> Something like this?
        >>
        >> https://www.mcmaster.com/t-handle-quick-release-pins/
        >>
        >> Michael Ding
        >>
        >> email: michael.ding313@xxxxxxxxx
        <mailto:michael.ding313@xxxxxxxxx> | tel: (647) 868-4526
        >>
        >>
        >>
        >> On Sat, Jul 18, 2020 at 4:42 PM William Claybaugh
        <wclaybaugh2@xxxxxxxxx <mailto:wclaybaugh2@xxxxxxxxx>> wrote:
        >>>
        >>> I’ve a lifetime of using a certain speciality tool but
        find today—trying to buy a few—that I’ve apparently never
        learned it’s name:
        >>>
        >>> I’m looking for a “T” shaped tool w/ a push button center
        top that operates two balls at opposite sides of the bottom of
        the “T” which balls sometimes fit in detents put can just fit
        on the far side of a wall as well. The result is to clamp two
        parts that can be easily unclamped by pushing the center
        button whilst pulling the “T”.
        >>>
        >>> Anyone know the name of this device?  Where to buy a
        dozen? Invitation to the flight test of my 6” solid for the
        first correct answer....
        >>>
        >>> Bill

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