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While the collecting rig is in use, the drop sheet design (Figure 1) allows the sheet to be quickly and easily removed from the rig frame work and lowered to the ground during a storm or high winds (Figure 2 & 3). The frame of the rig can remain standing until the storm passes or the wind subsides. The sheet can be easily and quickly inserted back into the frame (Figure 4 & 5). The intermediate cross bar contains the top of the drop sheet. There are no bolts or screws to connect the intermediate cross bar to the frame. The bar sets in a bracket on both sides of the rig (Figure 6 & 7). Simply lift the intermediate cross out of the brackets and lower the sheet to the ground. To return the sheet, lift the cross bar and set it into the brackets (Figure 6 & 7).
APRON
The apron can be attached to the bottom of the vertical sheet. Or, it can be a separate piece that is simply laid on the ground between the leg assemblies (Figure 5). To collect specimens from the vertical sheet, you must walk on the apron. As a result, the apron can become extremely dirty. Both the vertical sheet and the apron can be washed.
An apron is not required. However, if you have ever collected from a sheet and had a very desirable specimen fall from the sheet onto the ground, and you cannot locate it in the grass or dirt, you will need the apron. The size of the apron is up to you. It can be as small as 24 inches (12 inches on each side of the vertical sheet. Figure #5) or as large as 96 inches (48 inches on each side of the vertical sheet).
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