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Outside Breather Bag For Harvestores
If you own a Harvestore (or Sealstore or similar type of "air tight" structure), you'll be interested in an outside breather bag container, developed by Andy Thompson, Cortland, Kan.
"Getting the breather bag out from inside the silo increases capacity about 20%. What's more, it virtually eliminates having a climb to the top to tie the bag up and out of the way every time you fill," explains Thompson, who owns both a Harvestore and a Sealstore.
"I've thought all along that the standard Harvestore breather bag was poorly engineered. It takes up valuable storage space, and is a nuisance to tie up every time you fill. It's also prone to leaks, as evidenced by outside stain streaks on the structure," Thomspson explains.
His self-styled breather bag is made of the same nylon-plastic type material and is designed to fit into a giant-sized canister that bolts to the structure at the top.
Size of the bag and canister is geared to size of the structure. For example, Thompson equipped his 21 by 30 ft. Harvestore with a canister 10 ft. long and 6 ft. dia. It weighs right at 600 lbs. He figures the structure, which held about 6,800 bu. with the original inside breather bag, now holds about 8,000 bu. with the bag removed.
Thompson has contracted with a company to produce his patented outside breather bag, and the storage canister which is made of glass fused to steel. The canister has a "see through" bottom and can be observed from ground level to see if it is working properly.
"So far, the test unit I put on my Harvestore has worked effectively from a nightly low of 10? below zero, to a daytime high of 50?," says Thompson. He notes that the canister can be mounted at any point around the top of the structure but suggests that it be located as close to the ladder as possible. The bag inside the canister hooks to the same roof attachment that the original inside bag attached to.
Retail cost of units being readied for commercial production hadn't been established when this issue of FARM SHOW went to press.
For more details, contact: FARM SHOW Followup, Andrew Thompson, Route 1, Courtland, Kan. 66939 (ph 913 374-4384).

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1980 - Volume #4, Issue #2