Very rare and hard to find!
Excellent vintage gently used condition!
Book is solid! Staples/spine are intact but the staples are lightly rusted. No tears or rips! Pages have only light age discoloration, a couple of small smudges and a few dog-ears. Cover has some discoloration, light creases/dog-ear on the right upper front. The back shows a fair amount of smudging and a dog-ear crease at the lower left corner
A Hydraquadder is an attachment for a Linotype machine—a revolutionary 19th-century invention that cast entire lines of metal type (called "slugs") at once. Specifically, the Hydraquadder was a quadding mechanism that used hydraulic principles to automatically center or "quad" (align to one side) lines of text.
Primary Function: It allowed operators to set text flush left, centered, or flush right much faster than setting regular straight matter by hand.
Operation: The "Electric" version shown in your image utilized an electrical control system to activate the hydraulic vise jaws, which then positioned the assembled brass molds (matrices).
Efficiency: It operated independently of the main machine's mechanical motions, meaning it could function quietly and smoothly regardless of the printing speed.
Publisher: Mergenthaler Linotype Company, Brooklyn, NY.
75 Pages
Softcover
9" x 6"
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