@mijostyn: I had a similar type "dust sweep arm" in the late-60’s (the Dust Bug, made by Cecil E. Watts of England). But your recommendation of using one in place of an anti-static device---such as the Zerostat or DeStat---is not a good one.
First and foremost, even if the bristles of the dusting arm are effective at neutralizing an LP with a static charge (I have no knowledge one way or the other), it will do so only when the bristles arrive at any given area of the LP surface. In the meantime, the entire rest of the static-charged LP surface will be attracting dust down onto it.
Secondly, anti-static devices are more effective at neutralizing a static charge when the LP is hand-held, rather than sitting on the platter. The conductive grounding wire of the sweep arm you show in no way aids in neutralizing a static charge. Sorry to be the one to tell you that, but it’s a fact. If it did work, using a bare metal platter would work just as well, and they don’t.
There are anti-static brushes made for the photographic industry, with conductive bristles designed to clean negatives. You’ll notice none of them feature a conductive grounding strap. That is just done on consumer models aimed at gullible record collectors and beginner audiophiles. ;-)
The used LP’s I buy locally almost always have a healthy static charge on them (some record shop owners "clean" their trade-ins with a microfiber cloth and Windex, though a couple of mine have a Nitty Gritty or Record Doctor vacuum machine).
From the very long record-cleaning post on Bill Hart’s site (I can’t recommend it too highly), I learned of a great first step in cleaning used LP’s: You can find on ebay a number of sellers offering a hand-help device that is comprised of two plastic discs slightly larger than the diameter of LP center labels, each disc having a rubber gasket around it’s perimeter. You cover the label on both LP sides with the two discs and secure them with the supplied bolt and plastic-handled wingnut.
You are now ready for the first step in the cleaning process. Hold the LP under the running faucet in your kitchen or laundry room sink, and use a brush of your choice and some mild liquid detergent to wash all the dust/dirt/fluff off the LP. The LP is now pre-cleaned for your record cleaning machine (vacuum or ultrasonic). This does the same job as the Spin Clean and Knosti "tanks", without leaving behind a plastic tub to empty and clean. Doing such a pre-wash keeps the record store/previous owner gunk from dirtying your record cleaning machine/water.