Sheathed Blade Pruning Safety System

jomoco

jomoco

Don Blair used to raz me at seminars by introducing me to audiences and colleagues of his as "Dirty Harry" because of my ever present and conspicuous custom boot scabbard of leather, containing my oh so sharp and lethal hand saw. This back before boot scabbards were even available through arborist supply companies.

My thought is that a sheathed blade is a safe blade, and if that single blade was interchangeable quickly between say a handle, an extending cane, and a pole section, all those bladed tools would be safer to both carry or hang in the tree, provided that single interchangeable blade was snugly locked into your custom boot scabbard?

I like the idea of an unbladed handle leashed to my wrist, so that when I snap lock the blade onto it, the chances of dropping the entire handsaw are far less.

How many climbers get injured by falling bladed tools from the tree each year?

Efficiency enhancement via interchangeability of blade for multiple tools.

Seems fairly doable to me.

How bout you?

jomoco
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You can take it off once you're finished pruning that tree, clip it back onto the scabbard, and lock it in your toolbox.

Ever sharpen a tri-cut 13 inch blade with a jeweler's file?

jomoco
 
Silky makes exactly that.
I've had it in my hands. itsa verdy nice.
my handsaw is always tethered and my polesaw is always lanyard when not in use.
I like my groundies enough to be encumbered slightly
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I'd like to hook a 13 inch tri-cut blade securely to a pneumatic reciprocating saw body, and see if it can easily cut a 6 inch hardwood branch?

jomoco
 
[ QUOTE ]
I'd like to hook a 13 inch tri-cut blade securely to a pneumatic reciprocating saw body, and see if it can easily cut a 6 inch hardwood branch?

jomoco

[/ QUOTE ]
I'm in the shop tomorrow, might try that if I have time. Shouldn't take long, plasma cutter and die grinder aught to do it.
 
[ QUOTE ]
I'd like to hook a 13 inch tri-cut blade securely to a pneumatic reciprocating saw body, and see if it can easily cut a 6 inch hardwood branch?

jomoco

[/ QUOTE ]

Fagus grandifolia deadwood? ... COOL!
 
Please let me know the throw please?

1/2 inch?

My Maibo pneumatic chainsaw requires massive CFM!

It would be interesting to determine how a pneumatic reciprocating saw compares?

jomoco
 
[ QUOTE ]
[ QUOTE ]
I'd like to hook a 13 inch tri-cut blade securely to a pneumatic reciprocating saw body, and see if it can easily cut a 6 inch hardwood branch?

jomoco

[/ QUOTE ]

Fagus grandifolia deadwood? ... COOL!

[/ QUOTE ]

Vidout zee razor sharp blade?

Life and work iz a beech!

jomoco
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Can you shoot me a link got the resip. saw your using. Think I got my wires crossed. I'm gonna try a proof of concept on a cordless and go from there.
 
Back in the mid 90's I actually gave a pneumatic tool demonstration at a PTCA(Professional Tree Care Association) seminar, in a euc in Balboa Park.

New England ropes had spun a polyester jacket over a urethane pneumatic air hose for me.

I had a custom teardrop termination on the female end that I clipped onto with my saddle, pneumatically plumbed with regulator and feeds for pneumatic loppers on my right side, pneumatic scabbarded chainsaw on my left. The rope/air hose was 150 feet long, fed with a trailered portable air compressor.

It weighed a lot, but hanging from it, not so bad. It was a class one pruning demonstration, in which I was radio'd into the PA speakers and could talk to the audience.

The loppers were basically all I needed for class one pruning. And I grinned as I cut three branches in quick succession in one second, pow pow pow!

I whipped out the chainsaw a few times, shamelessly one handing the three pound monster that started by pulling the trigger.

Ah yes! Those were the days!

Then a few years later the Cedar Fire in 03 burned it all except the loppers and saw in my tooltruck.

Being able to make such precise clean cuts on multiple branches in as many seconds was a glorious feeling that's never left my mind though.

The Maibo air loppers are specifically designed for very high production vineyard pruning, pow!

http://www.eclipseenterprises.com.au/pro...matic-pruner-f4

jomoco
 
Look at the size a portable compressor must be to run one pneumatic chainsaw.

http://www.eclipseenterprises.com.au/pro...ered-compressor

Note the efficiency gains using hand loppers or secateurs to prune with rather than chainsaws.

Now just get a 12 HP engine on the compressor that runs on LNG?

You could advertise your company as the cleanest greenest most advanced 21st century tree service on the planet!

All your trucks and chippers running on LNG engines like Waste Management Corp does, and modern rapid transit buses?

Probably quieter too!

If yu caint beat CA to death? Well, may as well join em I reckon?

The 21st century is so doable!

jomoco
 
Do you think you could weld a standard reciprocating blade to a Tri-cut blade without losing temper?

If not, then drilling and bolting them together?

Did it cut well at all before breaking?

They've got some big recipros that can do the job I'm sure.

But how big and how heavy.

Maybe I should be thinking smaller blade?

Thanks for the update BigWood.

jomoco
 
Once upon a time a grass weasel, ( landscraper) snaked a job on me as I rolled up. So I proceeded to sit in my truck and watch the removal, ( half hoping he'd put the 50 foot spruce down on the house so I could laugh at both him and the homeowner) . To my horror he produced a sawsall and a 12 inch demolition blade. Not only did he notch the tree with it, he limbed, bucked and loaded it on 1 blade!!!
Anyhow, moral of the story, don't know how they work on pruning cuts but I'm starting to think we might be trying to reinvent the wheel here.
 
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