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Probably the biggest challenge faced by humanity, is
working out how to get through closed doors while carrying
two cups of coffee and gripping a bag of tasty snacks in
ones teeth.
The two principle types of door handle both offer
resistance. First, the round knob-type handle requires that
it be firmly gripped and rotational torque applied. Then,
while this torque is maintained, the door itself must be
moved, usually around an axis perpendicular to the original
handle torque when the system is viewed in garden-variety
3D space.
The second system, the lever-type door handle offers a
little more hope. Rotation of the door mechanism is
afforded mechanical advantage by the addition of a lever.
With this system, it's sometimes possible to employ a
spare appendage to hook the lever and heroically open the
door enough to wedge a foot in. However, often this hope
is false, and the door is much trickier. Then, you end up
with hot coffee all down your arm. Worse, you may
encounter humanity's other great menace: unsightly
staining.
Basically, the whole door opening operation is a mess.
I propose a modified lever-type door handle. The
mechanism is rotated by an attached lever. However, this
is not pressed directly. Instead it attaches via a joint to a
second lever. This lever has a tab, attached to an
anchored jointed rod. The net result of this is a kind of
parallelogram system that allows for the human-interfacing
section of the mechanism to remain parallel with the floor,
completely removing the rotational component which is the
component that tips the coffee all over the place.
The system will be wonderfully over-engineered, available i
n two construction types: Brass and mahogany with lignum
vitae bearings (or possibly jewel bearings for high stress
applications) Or machined titanium with tungsten carbide
bits. Those two should cover every possible dwelling type.
Two cups of coffee... difficult to get through doors
Two_20Cups_20Of_20Coffee
[bs0u0155, May 12 2014]
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I'm opposed to anything that makes it easier for cats
to take over the world, which includes the lever arm
door latches, let alone this. |
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I consider all such door unsafe. We need to revise
the building code so that all doors must swing in
both direction and be equipped with crash bars on
both sides. That way no matter which direction
you are traveling with your arm-load of stuff, you
can simply put your backside to the door and push
it open. |
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Note that it is often difficult to make good
weatherstripping on a door that swings both ways,
so the building code should be further revised to
require a fancy door sealing method whose
requirements are only met by one existing
patented system made by a company that I own. |
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//opposed to anything that makes it easier for
cats to take over the world,// |
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How about a simple door-mounted cup holder? So
you could rest one cup of coffee on it, open the
door and collect the coffee once you're over the
worst of the whole opening procedure? perhaps
even a small vestibule in the door with a sort of
rotating system to allow for access... no, that
would be a nightmare if it were closed and you
had two cups of coffee.. |
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If you're carrying coffee, why not just start out in
the room you intend to be in? |
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I'd have to either a: take my desk to the kitchen, b:
run a water supply into my office or c: get my
personal staff to bring it. Personal staff are difficult
to get on the wages I'm willing to pay... |
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Emergency exit style doors with the push-bar would seem to solve this. |
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Would these be two cups of the same coffee, or...? |
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You could have the entire wall mounted on rollers so you stand still holding your coffee whilst the door and frame passes around you. |
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O.K., but well, they have these doors that slide aside when they see
you with motion sensors in airports and some department stores and
the like... Just make those cheap and perhaps pickier (like paying
attention to RFID badges or your cellphone or keys or something.) |
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//Personal staff are difficult to get on the wages I'm
willing to pay...// |
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You see, that's where you're making your mistake.
By paying personal staff, you start down a slippery
slope of rising expectations. |
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//how to get through closed doors while carrying two cups of coffee and gripping a bag of tasty snacks in ones teeth. |
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Surely the door with hinges along the top..optional hard-hat with rollers on the top |
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