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Trapezoidal comb frame

Patent drawing showing an exploded perspective of a beehive with trapezoidal comb frames, a sliding miller/feed drawer with wire gauze cover, honey boxes with glass sides, and a top case, labeled with reference letters throughout.

BEEHIVE.George R. Hartman · July 9, 1861

United States patent drawings and specifications are works of the U.S. government and are in the public domain — they were never copyrighted. Download them, print them, frame them. Our commentary and descriptions are © 2026 The Beehive & Bee Equipment Patent Archive.

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