duster

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duster

a cloth used for dusting furniture, etc.
Collins Discovery Encyclopedia, 1st edition © HarperCollins Publishers 2005
The following article is from The Great Soviet Encyclopedia (1979). It might be outdated or ideologically biased.

Duster

 

a machine or device for applying powdered dry pesticides to crops to protect them against pests and disease. Tractor-mounted or knapsack manual dusters are used, depending on conditions.

Tractor-mounted dusters are used to dust field crops, orchards, vineyards, and forest tracts. The working members are driven by a power takeoff shaft from the tractor engine. The operating width depends on the design of the duster; for vineyards it covers two to four rows, and for field crops, 10–100 m. Rated performance is from 3.5–5.0 to 30–64 hectares per hour.

Table 1. Main drying oils and their uses
1 mixture of polymerized and dehydrated oils is used *White spirit is the solvent ‘Content of alkyd resin, which has a fat content of 59–65%
NameType of oilProcessing methodOil content (percent)Uses
Natural.............DryingPartial polymerization100Preparation of primers, putty, oil paints (concentrated and thinned to working consistency); treatment of wood surfaces and other porous materials
Compound...........Drying or semidryingPolymerization and dehydration170–732Preparation of concentrated oil paints
Seminatural (for example, oxole) ............Drying orsemidryingPolymerization50–552Dilution of concentrated oil paints to working consistency
Alkyd (glyptal, pentaglyptal).Drying502,3Preparation of oil paints (concentrated and thinned to working consistency)

Knapsack dusters are used to treat vineyards, young fruit plantings, berry patches, vegetable fields, and other crops on small and inaccessible plots. The main units of such a duster are a tank with a feed device, a fan with a drive handle, and a tube with a spray nozzle. It has shoulder straps for carrying. Some knapsack dusters have a bellows instead of a fan for spraying the pesticide.

All dusters have the same principle of operation. The powder is fed from the bin or tank into a mixing chamber, and then it is forced by a stream of air created by the fan or bellows through the spray nozzle and out onto the plants.

G. P. SHAMAEV

The Great Soviet Encyclopedia, 3rd Edition (1970-1979). © 2010 The Gale Group, Inc. All rights reserved.
References in classic literature ?
BUT she forgot about that hole in the duster; and when she untied it--there was no Mouse!
Dacia has shifted 10,000 new Dusters in the UK which proves there are still plenty of people more interested in value than a flash premium badge.
Approaching 9,000 Dusters have found new homes since the start of 2019, making it the Renault-owned marque's most successful model so far this year.
Hardly anyone buys the bargain-basement version, most people opting for one of the posher of four Dusters on offer.
Hardly anyone buys the bargain basement version; most people opt for one of the posher of four Dusters on offer.
With more than 2.45 million Dusters sold worldwide, the new and improved model offers a refreshing take on4WD driving experience, equipped with the same off-road capability and affordability to beat the best in the market.
We ventured out and paired up with fellow journalists/influencers to take the Dusters for a spin -- little did I know quite how adventurous the drive was going to be.
And talking about radios, the entry-level Access model doesn't even have one - just a slot to fit music as an extra - but it does have electric front windows, remote central locking and the same safety kit as other Dusters.
And talking about radios the entry-level Access model doesn't even have one - just a slot to fit music as an extra - but it does have electric front windows, remote central locking and the same safety kit as other Dusters.
Hardly anyone buys the bargain basement version, most people opting for one of the posher of four Dusters on offer.
Aerosol dusters (sometimes known as "canned air") are ubiquitous manufacturing and test aids, used for cleaning off loose contaminants and blowing away dust from electronics, electrical and other products.