An 18" saw blade is a lot of saw blade. At that size you start to
get into serious issues about steel tension. The outer rim runs so
much faster than the inner rim that it wants to dish over on you. If
you hit the wrong freguency it can wobble uncontrollably.
Circumference = pi x diameter
3" diameter = 9.4" circumference
18" diameter = 56.5" circumference
9.4" at 600 rpm = 5.3 mph
56.5" at 600 rpm = 32 mph
Things found in logs (from Internet list)
a side-harrow tooth.
an old lead musket ball counted rings and it was about 100 yrs old.
I hit a small metal box. as it had a small quantity of gold dust and
flakes in it.
One of the benefits of sawing in California!
a Coca-Cola bottle
two 6-inch diameter by 8-inch long rocks, sitting vertically.
I cut into a nylon rope
an automotive-type water pump
a piece of a steel T-post one day. The sawhand who cut the tree felled
it toward the old fencerow, not knowing it was there. The tree fell
directly on top of one of the posts, driving a piece about 6" long into
the tree and driving the rest of the post completely into the ground
out of sight!! When the log hit the ground it apparently rolled enough
to break off the imbedded piece and no one saw it until the sawyer cut
into it at the mill.
four railroad spikes on one side of the log, three railroad spikes and
an 8-inch lag screw on the other.
including animals (raccoons, squirrels, mice, cats, snakes and of
course bee's honeycombs)
disk blade with the 12-inch bolt holding it into the tree. A
a metal-jacketed 50 caliber round. T
railroad spikes and one time I pulled 18 electrical staples out of one
place in a walnut log.
sap spiles (to drain the sap for Maple sytup)
a deer stand
an ants' nest
a 3/4" wire rope
Shrapnel in a teak plank form ex-Rhodesia, now Zimbabwe. Apparently,
finding bullets or shrapnel in trees from that area of the world is
an old wrought iron fence straight through the middle.
a mushroomed ball of lead about an inch in diameter
a metal roofing cap several feet long.
a live 50 caliber shell.
a spoon made from lead.
a training grenade from WW1.
a three inch hollow with an old five cent coke
My helper was cutting up the branches of a felled Virginia pine when a
section of about 8 inches burst into flames, producing a bright white
light like magnesium burning. There was a water hose nearby, and he
instinctively tried to flood the flames with water. It continued to
burn - this was not pine resin. Finally, after repeated attempts to put
it out, he decided to just pile the rest of the freshly cut, very green
pine tree on top of the fire. Even with all the water from the hose,
the flames ignited the whole tree into a blaze.
I have a degree in biochem, and all I can figure is that some sort of
explosives or fireworks, or a form of magnseium, etc. had been in a
hollow, and the tree's new growth calloused over it.
We also found an old 1940(?) generator in a tree, old bullet slugs,
rocks many feet up... The most unusual was in a healthy, sound red oak.
It was huge, so we took it down from the top. It was between two
houses, and over one of them, about 55 feet up, I discovered that the
fork I had been depending on was, to my horror, hollow. I can not
believe it did not break from my weight and the ropes and pulleys, plus
the shock loads and leverage/distance over the house. So I am cutting
off sections about one foot at a time, 56 feet, then 55 from the
ground, and a small hollow appears - packed with dirt. It was about 9
inches, with no opening to the outside air. I cut it off, drop the
section, and dirt sprays the homes like a huge dog with diarrhea. When
I make another cut, many little skinny red worms pop up squirming. I
suppose it was an old squirrel nest in a hollow which eventually
a live monkey from the local zoo