An actual post related to flying

"Private" wrote

I note that Robertson was having the same kind of legal problems
protecting his invention as the Wrights were having at the same time.
Today we realize that he would perhaps have been smarter to give away the
license to use the screws and to retain the license for the drivers.

It may be of interest that square drive screws are becoming much more
popular in construction work.

I have used square drive finish screws. Neatest thing since sliced bread,
where it is needed, as in having a 12d finish nail sized hole, but the
ability to pull something together, and hold much better than a nail.

Also, deck screws with a square drive are around. It may be that if there
is still a royalty for using Robertson screws, they got around it in an
innovative way. These screws I am talking about can be driven by a Phillips
head driver (very poorly, though) but have the inside of the Phillips slots
enlarged so that a square drive will fit in it. If you keep a reasonable
amount of pressure on them, they WILL not slip.

I look forward to seeing more and different kinds of hardware showing up
with square drives. I'll switch every one out that I can find!
--
Jim in NC

All very true. I can only add that a surprisingly small amount of wear can
cause a lot of problems.

Boy, isn't that the truth? I'll bet I've replaced every screw on my
plane in the five years I've owned it.

I replaced all the structural screws around the gas tank with
stainless steel screws when I pulled the tanks to comply with the
dreaded "Service Bulletin 1006" -- the wing spar corrosion SB that
every Cherokee owner fears.

And I've replaced every inspection panel screw, too. Every year I
plan on replacing at least 25% of them. Even so, there's usually one
or two boogers that require "special treatment" to get them out.

I would love to replace them with square-drive screws. THAT would be
a huge improvement.
--
Jay Honeck
Iowa City, IA
Pathfinder N56993
www.AlexisParkInn.com
"Your Aviation Destination"

And we're careful not to drop anything, since once it hits the floor we
can't sterilize it or use it over.

"Viperdoc" wrote

And we're careful not to drop anything, since once it hits the floor we
can't sterilize it or use it over.

During kidney stone removal I had years ago, (none in the last 12 years,
knock on wood) The first basket they used to scoop it out, did not work.
Of course, I got charged for both of them.

I'm trying to remember what I got charged for them. $450, I think. Ouch!
--
Jim in NC

"Morgans" wrote in message
...

"Private" wrote

snip
Also, deck screws with a square drive are around. It may be that if there
is still a royalty for using Robertson screws, they got around it in an
innovative way. These screws I am talking about can be driven by a
Phillips head driver (very poorly, though) but have the inside of the
Phillips slots enlarged so that a square drive will fit in it. If you
keep a reasonable amount of pressure on them, they WILL not slip.

I look forward to seeing more and different kinds of hardware showing up
with square drives. I'll switch every one out that I can find!
--
Jim in NC

I have not seen this type of decking screws but have been using some
European screws for assembling cabinet boxes that have this type of head.
IIRC they are called 'Conformat' and AFAIK are really designed for particle
board but are great for plywood. They have great clamping force but are not
pointed and do not tend to split the plys when screwed into the endgrain,
they do require a $pecial $tepped drill bit. They have a very sharp but
coarse pitch thread with a large flat landing at the root of the thread,
something like this --^----^----^----^----^-- These screws can also be
driven with either a big Philips or a #2 Robertson.

Yesterday I learned that the cheap plastic spatulas we use for bone cement
cost the hospital $48.00 for a set of two. They are literally 10 cents worth
of cheap injection molded plastic.

Yet, the hospitals are telling everyone that we need to cut back on
expenses. Who was the bonehead that signed off on the price of these items
anyway?

"Morgans" wrote in message ...
:
: "Viperdoc" wrote in message
: ...
: I had a yellow handled Snap-On that matched my aerobatic plane. However,
: needed the Modine heater in the hangar replaced one day, and after the work
: the screwdriver was missing.
:
: Still not convinced that an electric is the way to go- it seems like they
: chew up the head more than a manual. In the operating room we use mostly
: hex sockets or torx head screws. Of course, a single bone screw can cost
: close to $100.
:
: The key, like another poster said, is the use of a real low clutch setting.
: Simply put, the clutch slips at such a low torque setting, that there is not
: enough power to tear up a head. Loosen the first little bit, and tighten
: the last bit to the correct torque with a hand driver.
:
: Some screws, not requiring high torque, can still be done without using the
: hand screwdriver.
: --
: Jim in NC
:
:

Doesn't anyone use the old speed drivers or whatever they are called?

Doesn't anyone have any concerns about the DC motor sparks causing a problem around gasoline?

I use my electric also and the Makita has a nice smooth clutch and repeatable breakaway torque...

Airline pilot bellies up to the bar next to this really pretty lady. He
smiles at her, talks into his watch, holds it up to his ear, talks into his
watch again, holds it up to his ear again...

She is curious and asks why he is talking and listening to his watch. He
says that it isn't a watch, that it is a personal database link and that it
always answers any question correctly. He goes on to say that he asked it
if she were wearing panties and it said that she was not.

She says that the watch may be a very fine thing, but that she was certainly
wearing panties.

He talks into the watch, listens, and says, "Of course. I just flew in from
New York. The thing is three hours fast."


Jim

Jay Honeck wrote
... I replaced all the structural screws around the gas tank with
stainless steel screws ...

Did you use structural stainless steel screws?

"Private" wrote in
news:wlkGh.1209916$5R2.723152@pd7urf3no:

It must be winter, there is little flying so we are reduced to talking
about screwing.

By your definition, I am a member of the Mile High Club after all.