h a l f b a k e r yKeep out of reach of children.
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A squeeze bulb piped via pneumatic tubing to a horn inside the house.
The squeeze bulb could be modified to resemble anything interesting, such as a nose.
"What knockers!"
http://www.youtube....watch?v=Y4Kbyte51MY
the seen mentiond by lan Tindale [dev45, Jun 18 2008]
[link]
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I'm glad to see some one else likes "Young Frankenstein" |
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could you make the bulb in the shape of breasts ? |
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Be ready for a proliferation of novelty "squirt" door honks. |
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My main problem would be the working fluid, in this case a gas. Gasses compress, so the distance between the squeeze bulb and the horn will need to be relatively short, or it may need to be augmented by some auxillary power. |
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//could you make the bulb in the shape of breasts ?//
Yeah, whatever gets your horn going... |
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It's more of a doorhorn, really, isn't it? |
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I suppose so, but then what should we call those electronic gizmos that sing a little tune? Perhaps there should be a generic name, such as Door announcer. But then it might be a gate, so let's try Entrance announcer. Doesn't have the same ring, does it? |
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// Doesn't have the same ring, does it? // |
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No, more of a "PARRRPP" sound, shirley ? |
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<obligatory>
Honk if your horny. |
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Amazing. If you say "squeeze bulb," there has to be some kind of breast reference. |
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And now I'm thinking of those Indian tantric statues. |
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OK I was just playing off lan Tindale Comment. |
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see link for the seen in question. |
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Doh!, Why don't spell checkers flag words that can be spelled different ways? |
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...or I could just learn to spell correctly but that seems a bit rash. |
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a wireless doorbell that doesn't require batteries is quite baked. Back in the day large homes would have a pull rope going from a handle next to the door to a bell clanger located deep within the house. Sure, instead of wires you still needed to run a rope, but your idea requires running an air hose, same difference. |
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I knew that, but convinced myself that, instead of 'rope', they used 'wire rope'. |
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No batteries? Very baked indeed. There are spring loaded doorbells that mount directly to the door. |
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The problem of back pressure still exists. To overcome back pressure in non-compressable fluids you need a stonger pump. In compressable fluids it just means you won't get your desired result. |
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The horn will have to be in close proximity to the squeeze bulb. After the desired vibration, you can transmit that where-ever you want, provide for energy losses though. |
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[boysparks] ok, a non battery doorbell that specifically uses pnuemtics maybe isn't baked, but I don't see the advantage to using pnuematics vs any of the other non-battery methods. |
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Who said there was supposed to be any advantage? Perhaps it boils down to whether you want a Ring, Tinkle, Tune or an OOOMPAHHH. |
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//but your idea requires running an air hose// |
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If you're running a hose, why not stick a funnel on both ends and have a wireless intercom system as well??? |
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I know I know. Let me save you the trouble. What "funnel" that be? |
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Put a trumpet mouthpiece on the outside, and a tuba on the inside ..... very Addams Family .... |
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Actually, if you had a trumpet mouthpiece and rods running through the door to the valves, visitors could announce their arrival with a personal fanfare.... |
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Door Trumpet: "Dah Da DAAA, Dah Da DAA, Dur Da DAA DAA, Dah Da DURRRR ....." |
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You: "Bugger, it's the in-laws - quick, hide the good Whisky...." |
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How about a Didgeridon't? |
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I'm not likely to put my lips anywhere near somebody's front door not matter how inviting the novelty door announcer device is. However, as we speak (type?), a highly-trained and, through no fault of my own, under-financed team of gadgeteers and enviro-titionists are working on "The Whoopee Doorbell". |
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The Whoopee Doorbell is a pneumatically-powered front door annunciation device, whereby a visitor wishing their presence to be known simply steps onto a "welcome" mat situated by the front door. The application of their weight to the mat causes the rapid deflation of an air bladder hidden beneath. This rushing air is carried by tubing to the annunciator, where it passes through a moist, reed-like, bi-labial chamber, creating a resounding "plthbptbpt" (that's how my spell-checker spells it) which can easily be heard throughout the domicile. |
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<aside - for jutta's sake I left off the obligatory reference to a certain stringed instrument. Y'r welcome!> |
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Aaaah, fukit, no-ones listening... How about Mike Oldfeild's Tubular Balls? |
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You can get tablets for that now. We keep getting emails about them .... |
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