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Double Deck Zipper works using the same teeth meshing process as a conventional zip, except there are double lines of teeth entering the mouth of the fastener which is double decked to accomodate them.
From the rear of the fastener, the joined zip emerges and looks to all intents and purposes like
any other, except it has double strength.
It was a bugger to draw clearly so I deleted most of the detail and concentrated on the entry point and exaggerated the width of the direction of the upper lines of teeth for clarity.
see illustration.....
Double Decker Zip
https://sodabred.tu...xenzag-4th-oct-2020
[xenzag, Oct 04 2020]
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Description (displayed with the short name and URL.)
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It's not the same thing as it still only has two sets of teeth entering a single slot. My idea proposes four seperate rows of teeth entering a double deck zipper. Meanwhile you could try and be a bit more inventive, and post some ideas of your own instead of always presenting as a type of poisonous humbug of constant negativity. |
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It's not the same idea, as I have explained, but you
spend the majority of your time in efforts to prove
that halfbakery idea postings already exist, instead
of posting more ideas of your own. The halfbakery
is not a competition to gleefully dredge up
similarities with obscure finds. Let's see more
creativity, which is the real reason to be here. |
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I'm not inclined to educate you as to the difference
any further. If you can't see it from the drawing
and the description then that's too bad, the failure
lies with you to attend to, and not with me.
Deliberate, calculated stupidity always irritates
me greatly, as does having a type of limpet troll
following my every posting. Meanwhile I come
here to post ideas; enjoy those of others and not
to engage in tiresome antics. If it makes you
happy, I'll remodel the zipper as a double decker
bus to reinforce its difference. |
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// I don’t see how pointing out prior art is poisonous humbug or negativity. // |
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// The halfbakery is not a competition to gleefully dredge up similarities with obscure finds.// |
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No, that's only a part of it. There's also the pedantry, in-jokes, insults (deserved or otherwise), schadenfreude, and political debate ... |
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// I don’t take any “glee” in that - // |
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You're missing out, take every oportunity you get ... |
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// and have no emotion close to your expression of fury. It’s more of a shrug. // |
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Do you raise one eyebrow in a quizzical way ? Er, do you have pointy ears ... ? |
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// Deliberate, calculated stupidity always irritates me greatly, // |
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What about accidental, miscalculated stupidity ? The planet's full of that ... |
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// as does having a type of limpet troll following my every posting. // |
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Presumably they're the sort that cling to rocks below the high-water mark ... |
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Nice work, [kdf], see if you can get the purple vein in her forehead to start to throb. Try mentioning genetically modified food, or globalization, or battery chickens ... |
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Some thoughts:
<pedant> Your drawing is excellent (as always) except it's
backwards: the zip "halves" (or quarters, in your case) are
together when emerging from the "bottom" of the runner;
your drawing should have them apart on the top left.
</pedant>
Rather than the 4 strips joining to become 2 (one above the
other) they could all join into 1, which would be more rigid
(possibly TOO rigid...). The internal channeling in the runner
would be quite complicated... |
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The advantage of the two separate junctions is that it allows for the possibility of some sort of compressive seal between the inner and outer layers. |
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It also allows the layers to move slightly relative to one another -an overly rigid structure might impose excessive forces on the garment, or more precisely on the junction between the garment and the zipper. |
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Yes, and immersion suits. |
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// no pointy ears but I can do the raised eyebrow as needed. // |
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Pairs well with sentences starting with “I fail to see the reason...” |
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Take that beanie hat off. C'mon, take it off. What are you hiding ? Eh ? |
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Hmmmm ... always wears a pulled-down hat, prone to querulous eyebrow activity, and uses “I fail to see the reason...” ... very, VERY suspicious ... |
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Not that we have any special prejudice against Vulcans, you understand. You just get the same general broadband prejudice as everyone else ... |
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[kdf], reaction time is a factor in this, so please pay attention. Now, answer as quickly as you can ... |
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You two should start breeding.... imagines multi
tentacled children who live under bridges. |
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Fine. You can be the billy-goat ... |
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//Xenzag, you (and likely others) will be relieved
to know my breeding days are behind me// Laughs
out loud. I'm sure you and 8th will find a way. I only
ever impregnate half assembled flat pack soft
furniture. (before returning the items to multiply
like coat hangers on the warehouse shelves) |
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You'll have to move the pull to a location which is
more in line with the center of drag force, otherwise
you'll have a hard time getting it to zip. |
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Make the pull a powered device; supply current through one of the pairs of teeth, from a battery pack integrated into the garment. |
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Add Bluetooth to it, and it could be operated by a phone app. |
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The pull could be made to look like a tiny Abt rack-railway locomotive. |
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I think I did post a motorised zip some time ago
but couldn't be arsed checking. You can do it for
me - there's a good boy. |
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Yeah, 'cuz that's what penis fly-traps need : more teeth. |
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// that's what penis fly-traps need : more teeth. // |
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... and that's exactly the sort of Special Entertainment that [xen] finds so profitable, when offered to her extensive list of Discerning Elderly Gentleman clients ... |
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//gleefully// Ah yes. One of your human
emotions. I have never understood the female
capacity to avoid a direct answer to any
question. |
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As it happens, I haven't posted any ideas for a
while, and I like it when others //dredge up
similarities with obscure finds//. |
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Now I. need to pull my beany down and go find
parts for my electrical contraption that includes
a Jacob's ladder for some reason. |
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//when offered to her extensive list// I appreciate
your openly expressed desire for me to be your
female company, but alas your delusions have
consumed you. Constantly ascribing mistaken
gender types to anyone is very boring, even for
you. What happened to your capacity for
invention? Step up and be more creative......Post
some new ideas, instead of always feeding on
mine. You don't want to turn into a non-posting
lurker like your new partner kdf. |
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