13. Clear your work area and your escape path of brush, vines, and other hazards that can trip you or catch your saw.
14. Escape from the bullseye when the tree tips. 90% of accidents happen within 12 feet of the stump. Go more than 15 feet, and stay out of the bullseye until things stop falling.
15. Keep spectators away more than twice the height of the tree in the direction it will fall.
16. Don't cut alone.
17. Keep your body and the swamper's out of the line of the bar in case of a kickback.
18. Set the brake when taking over two steps or when moving through tripping hazards. Keep your trigger finger off of the throttle when you are moving.
19. DO NOT operate a chainsaw from a ladder! Operating with your feet off the ground requires special training.
20. Do not cut above your shoulders.
21. Springpoles must be shaved on the inside of the apex between the ascending and descending sides. If the apex is higher than you shoulders, stand under the springpole and cut it low on the descending side. It will release upward, away from you.Leaning and heavily loaded poles that are too small to bore cut for a hinge should be shaved on the compressed side until they fold.
22. Do not cut a tree that is holding up a lodged tree. Do not work under a lodged tree. Think about a mouse trying to steal the cheese out of a trap.
23. Instruct your swampers and helpers to NEVER approach you from behind or the sides to within the reach of your saw when you are cutting. If you pull out of a cut with the chain running, or have a severe kickback, the swamper can be killed if he is coming up behind you!
24!! Quit When You Are Tired!
3 comments:
If you could address a curiosity for me, please...
I note in the videos of older steam locomotives that the exhaust from the stack seems to be relatively passive, presumablysmoke drawn from the firebox by natural convection and/or draft, such as a fireplace or woodstove would use for ventilation, whereas the newer steam locomotives seem to have forceful pulses timed to the cycle of the engine, and the exhaust plume lingers.
Do the newer engines vent waste steam thru the stack, and if so, is it done in a manner to aid in introducing air for combustion to the firebox, or to aid in drawing exhaust from the firebox, or is there some further extraction of the heat from the steam, or is it just cleaner or more convenient to send the water vapor up?
Thanks!
Peter Cooper made the Tom Thumb in 1830, and it had a mechanical blower to create a draft for the fire. It was run by a belt from the axle. Nearly every other locomotive made has used an exhaust nozzle that directed the exhaust steam up the stack. The fireman had draft doors fore and aft at the lower end of the firebox to control the amount air that could come through the grates. If you go to steam shows you will find that every engine has its own sound. The combination of valve gear, steam cutoff in the valve gear, and boiler pressure all are factors in that. In the Twentieth Century advances were made in exhaust nozzle technology. https://en.wikipedia.org/wiki/Steam_locomotive_exhaust_system The appearance of the smoke also changes with fuel. Some burn wood, some burn coal, many of the newer engines burn oil. You also have shovel-fired boilers and stoker-fed boilers. Ride the Durango-Silverton and you will hear the engine work all the way from Durango as it goes north. As it returns from Silverton it is going downhill, so there is not much stack talk then. This is a big topic if you start looking at it critically!
Thanks for the info and the link to lead me on a nice wiki-wander.
I thought I understood the basics of steam but I can see that there's a lot more to it than I realized!
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