Dateline: 15 November 2013
If you want to invent something new, just look for a problem and create a solution. That's how the handy device above came into existence.
The problem I was looking to solve was my lack of free hands when it comes to string-tying plants in my garden, like when training tomatoes on a Whizbang T-Post Trellis Span, or tying raspberry stalks to a support. With a roll of string in one hand, and a knife in the other, I can cut the string pieces I need, but then I have to put the string down and put the knife away so I have both hands free to tie the string. It's not a convenient or efficient way to work.
So I gave this problem a lot of thought and came up with the as-yet-unnamed tool shown above. Here's a picture of the tool in action…
|(click the picture to see an enlarged view)|
The prototype is made with two 4" galvanized duct caps and some aluminum flashing, all held together with duct tape. My thought was to solder the metal pieces together, but I've concluded that pvc pipe and fittings will be easier to work with, and probably just as good.
The twine-ring-knife is an inexpensive, one-size-fits-all gadget. It should last for years if you use it just for string (and don't lose it). Here's a close-up picture..
If you would like to have a twine-ring-knife, like shown above, I have a small supply of them. Cost is $6.95 for two, first-class postage paid. Click the "Buy Now" button and I'll get them shipped right out to you.
If you would like to purchase a much more durable ring knife, check out the Handy Twine Knife. The company has been in business for over 100 years and they make a great product.