[TheForge] [OT] Cobbler tool for blacksmiths

peter fels artgawk at thegrid.net
Wed Mar 23 18:34:18 EDT 2011


Ooooh, Yer a smart guy Jerry.
I wonder if one could do a very cold version
of Eliz Brim's expandable hollowbodys that way?


On Mar 23, 2011, at 3:19 PM, Jerry Frost wrote:

> forget the hydraulic toe expander and fill (Okay partly fill!) a balloon 
> with water and put it in the freezer. It may take more than on application 
> but it's really easy.
> 
> Jer
> ----- Original Message ----- 
> From: "Mike Spencer" <mspencer at tallships.ca>
> To: <theforge at mailman.qth.net>
> Sent: Wednesday, March 23, 2011 2:28 AM
> Subject: [TheForge] [OT] Cobbler tool for blacksmiths
> 
> 
>> 
>> Marrin Fleet <mtfleet at gmail.com> wrote:
>> 
>>> Tell me Mike, how does one find out more about the Mark V Hydraulic
>>> toe cap expander?  I haven't been able to buy steel toed boots that
>>> fit my feet (11 1/2 5E).  If it works, maybe you are on to
>>> something.
>> 
>> Problem arose when Goodhue dropped the model of boot I've been buying
>> in size 12 for over 20 years.  My boot guy said,  "I know, I know, I
>> sold them for years. But I can't get them.  And the company's
>> changed.  Their products are now for shit and the company's gone down
>> hill.  I won't carry their products any more."
>> 
>> But I importuned him to get me a pair of their boots anyhow, size
>> 12, somewhat similar to the discontinued ones and recommended to me
>> by the company rep. Boot Guy ordered them, grudgingly but with good grace.
>> 
>> Tried on, they felt fine.  So I drilled out most of the eyelets and
>> replaced them with hooks from old boots (never throw anything away.)
>> Andnnnnnnnnddddd...
>> 
>> Worn for more than 20 minutes, they painfully pinched my little
>> toes.  Utterly useless, 200 bucks worth of doggie chew toy.
>> 
>> Now I happen to own a porta-power.  You know, a manual hydraulic pump
>> with a piston on the end of a hose, for straightening truck frames,
>> nudging heavy stuff and the like.  And it has an attachment, sort of
>> like a giant steel alligator clip, held closed with a spring.
>> Attached to the porta-power pump in place of the usual piston, it can
>> be forced open with hydraulic pressure.  But by itself, it's too big
>> and awkward.  Open a can of Stubborn, add a shot of Pigheaded and
>> commence:
>> 
>>   + Replace the hydraulic connector on the attachment with a very
>>     short nipple and elbow.  Screw the connector onto the elbow. Now
>>     it will fit into a boot with the action of the "alligator jaws"
>>     going sideways if you orient the elbow right.
>> 
>>   + Weld up a device: two short pieces of 1/4x1 flat bar welded to a
>>     1" piece sawn off a small, cheap butt hinge.  Heat the free ends
>>     of the 1/4x1 and bend inward -- toward each other -- about 1/2"
>>     of the stock.  You now have a pair of very crude, short tongs or
>>     forceps, right?
>> 
>>   + Saw off about 3/4" of (nominal) 3/4" black pipe and saw it in
>>     half the long way, making two hemicylinders.  Weld the
>>     hemicylinders to the 1/4x1 arms of the tongs.  Just where you do
>>     this matters.  Has to be such that, when the device is inserted,
>>     hinge forward, all the way into the toe of the boot, the bosses
>>     created by the pieces of pipe are just forward of the aft edge
>>     of the steel toe cap.  Measure, eyeball, model, do whatever to
>>     get that right.
>> 
>>   + Flap-wheel all sharp edges and corners to help avoid tearing the
>>     boot lining.  Everything all nice and roundy?  Good.
>> 
>>   + Insert the device all the way forward into the toe of the boot.
>>     and open it on the hinge as far as it will go.  Insert the
>>     porta-power spreader into the boot, tips of the spreader
>>     attachment between the jaws of the device.
>> 
>>   + Jack the porta-power pump until the toe cap spreads and strains
>>     the leather as much as you thing it will stand without
>>     rupturing.  Slack off and compare to the other boot with
>>     calipers.
>> 
>>   + Repeat two or three times.
>> 
>> If you don't succeed in gaining some width, consider reshaping the
>> device to get more travel in the right place.  If jacking the pump
>> produces distortion in the wrong place -- say, the porta-power
>> attachment itself starts poking up aft of the toecap -- reshape the
>> device.  Trial and error.  Took me five tries.
>> 
>> There may be some risk of cracking the toe cap.  If there's a
>> significant probability that Large Objects will fall on your foot (or
>> if you, your work, your boots, insurance companies and their lawyers
>> are all intimately related) this may be a bad idea.
>> 
>> Or maybe you can get your modified boots X-rayed to check for cracks.
>> 
>> I dunno if this qualifies as OnTopic or not but it was all done in a
>> blacksmith shop so it's at least arguable.
>> 
>> 
>> - Mike
>> 
>> -- 
>> Michael Spencer                  Nova Scotia, Canada       .~.
>>                                                          /V\
>> mspencer at tallships.ca                                     /( )\
>> http://home.tallships.ca/mspencer/                        ^^-^^
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> 
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