On Wednesday 22 March 2017 10:01:58 andy pugh wrote:

> On 22 March 2017 at 12:05, Gene Heskett <ghesk...@shentel.net> wrote:
> > It sounds like the adjective "taperlock" must lose something in
> > the translation,
>
> It must do. I interpret it as a noun.

I believe it may be that too, and that is what the Browning patent calls 
it.  It has a back flange much larger that the taper, machined at the 
large end of the taper, which serves as the pressure plate to draw the 
taper together, and is tapped, same as the draw bolts, so the draw bolt 
can be moved from the untapped clearance hole in the flange, to the 
tapped hole in the flange where it is screwed in to contact the face of 
the pulley and jack it back apart.  6 holes in the flange, 3 clear the 
screw with enough clearance that the flange, (the whole thing is 
slotted, wider than a keyway if so the taper and flange can collapse a 
bit as the taper is drawn in), are used and 3 are tapped for the screw.

Keys are 100% optional in my experience, they never slip when properly 
drawn in.

See this link for a poor pix, upper right on the page. I say poor because 
the taper on the OD of the smaller projection faceing us isn't obvious.

<http://www.regalpts.com/products/drive-components/bushings/split-taper/Pages/default.aspx>

Cheers, Gene Heskett
-- 
"There are four boxes to be used in defense of liberty:
 soap, ballot, jury, and ammo. Please use in that order."
-Ed Howdershelt (Author)
Genes Web page <http://geneslinuxbox.net:6309/gene>

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