• Webster's Revised Unabridged Dictionary
    • Doffer (Mach) A revolving cylinder, or a vibrating bar, with teeth, in a carding machine, which doffs, or strips off, the fiber from the cards.
    • Doffer (Spinning) A worker who replaces full bobbins by empty ones on the throstle or ring frames.
    • ***
Century Dictionary and Cyclopedia
    • n doffer One who or that which doffs; specifically, a revolving cylinder in a carding-machine, which doffs or strips off the cotton from the cards. See cut under carding-machine.
    • ***
Chambers's Twentieth Century Dictionary
    • n Doffer dof′ėr the part of a carding-machine which strips the cotton from the cylinder when carded.
    • ***


In literature:

Bull Run and Seven Days were doffers, and confined to the same set of frames.
"The Bishop of Cottontown" by John Trotwood Moore
Yet his smile was fleeting, and his only comment a reprimand to "Jack doffer" for his carelessness.
"Reels and Spindles" by Evelyn Raymond
Having passed the "flats," the cotton is deposited by the cylinder on what is termed the doffer.
"The Story of the Cotton Plant" by Frederick Wilkinson
By having good doffers and good starters.
"Instruction book on ring spinning" by Francis L. Lincoln
It's possible that Senor Doffer may have his trap open by this time to catch the early birds.
"The Headless Horseman" by Mayne Reid
She saw what it meant to be a "doffer," a "reeler," a "silk-twister.
"The Turn of the Tide" by Eleanor H. Porter
The Doffers are made 1/8 in.
"Illustrated Catalogue of Cotton Machinery" by Howard & Bullough American Machine Company, Ltd.
I was an eye-witness of a practical joke played by a band of Doffers upon an unsuspecting carter.
"Lancashire Humour" by Thomas Newbigging
The tow is then removed from the brush by a doffer roller, from which it is finally removed by a doffing knife.
"Encyclopaedia Britannica, 11th Edition, Volume 16, Slice 6" by Various

In science:

In our spectra we detect distinct velocity changes between the emission lines (which originate in B, see subsection 3.2.5) and the absorption profile at dofferent epochs, which supports the SB1 character for A.
The Galactic O-Star Spectroscopic Survey. I. Classification System and Bright Northern Stars in the Blue-Violet at R~2500