Kevin Mark Klughart
PhD, PE, JD, MIP, LLM
Patent Attorney / Engineer
My wife and I live close to the country in an area full of post oak trees and as such there is always a good amount of firewood available in the area, especially after a good Texas storm. The problem has always been storing the wood and keeping it dry for the winter. The solution to this was a gigo log rack having a base frame 3x9 feet and a roof covering about 6x17 feet.
The tripods on each end are bolted to the frame to ensure stability when the rack is unloaded. Note the bow in the middle of the log rack. This isn't caused by loading of the rack, but rather was an heat warping artifact induced by the MIG welds of the 3/4-inch bar stock used to form the bottom of the rack. Construction of the rack was accomplished using 2-inch ID drill pipe for major frame members along with 2.5-inch ID sleeves to mate the upper and lower sections together.
Fastening of the outer sleeve to the inner 2-inch pipe was accomplished by welding two 1/2-inch nuts at 90-degree angles to the outer sleeve (coincident with 5/8-inch drilled holes in the pipe) and then using two 1/2-13 bolts to make the friction fit connection. Note that this hardware was stainless steel - any zinc plated material would have not only rusted over time but been somewhat dangerous to weld. MIG welding with 0.035 wire at a low heat/feed setting was sufficient to bond the SS bolt to the outer sleeve. To prevent heat galling of the SS bolt I found it useful to coat a zinc bolt with oil, thread it into the SS nut, and then perform the MIG weld on the outer perimeter of the SS nut. Painting of the structure was done with Rustoleum Rusty Metal Primer and a spray gun.
The bottom frame is very stout - too heavy to lift after it was constructed - so as you can see it was provided with temporary wheels to move the structure once it was fully assembled. The lift onto the tripods was accomplished with a pallet jack.
One interesting note is in the roof construction. As you can see the roof is pitched left to right and curved over the front-to-back axis. I didn't have a pipe bender at the time I fabricated this log rack, but did run across the remains of a trampoline frame that had been damaged and discarded after a local storm. I used the curved circular exterior of the frame to form the curved roof section of the rack, and fabricated special brackets to interface these curved sections to the upper 2-inch drill pipe frame. Piecing of this thin wall tubing together was accomplished by careful MIG welding.
Other interesting things to note are the speed bag on the left and punching bag on the right of the structure. The speed bag uses a solid 3/8-inch steel plate for support and the speed bag incorporates a spring loaded support sleeve to permit up/down movement during workouts. Hard to believe, but it took two people to lift the speed bag platform into position!
The best part of this rack is that the wood is BONE DRY by the time winter comes, and really makes working the fireplace a joy rather than the burden it once was.
Since this picture was taken the rack has been augmented to store metal, pipe and other long items via the use of rail extensions tied above eye-level.
Kevin Mark Klughart
Registered Patent Attorney, USPTO
3825 Leisure Lane, Denton, TX 76210-5589
tel: 800-353-1211 / 940-320-0580 - fax 940-320-0581