The Beehive & Bee Equipment Patent Archive

The patented pursuit of the perfect hive

IMPROVEMENT IN BEE-HIVES

Moth-baffling entrance shutters and little tunnels so bees can commute between frames

PatentUS 40,323
PatentedOctober 20, 1863
InventorLevi Brown
OfPontiac, New York
Patent drawing of a wooden bee-hive with three sectional views showing rows of movable diamond-shaped frames, hinged entrance shutters, and a round ventilating button on the side.
Fig. 1 — Transverse vertical section showing movable frames and doors; Fig. 2 — Longitudinal vertical section showing frame guides and ventilator; Fig. 3 — Horizontal section showing entrance shutters and frame arrangement · click to zoom
Sheet 1 of the patentSheet 2 of the patentSheet 3 of the patent

Improved bee-hive with movable frames and moth-guard shutters

How it works

The hive uses two hinged shutters at the entrance that incline toward each other to guide moths and other pests down through holes at the rear of the entrance rather than into the hive. Interior movable frames are held in place by notched bars at top and bottom rather than resting on rabbets, preventing the combs from falling when the hive is moved. Each frame has crosswise wire guides that keep bees from building comb across multiple frames and support small tubes allowing bees to pass between frames without going around the outside. A hollow opaque button covers the ventilation opening, admitting air through a tortuous passage while excluding light.

What was claimed

“1. The arrangement of adjustable shutters D in the bee-entrance C, in combination with the holes b, substantially as and for the purpose specified.”

In plain English: The invention claims hinged, adjustable entrance shutters combined with drainage holes that redirect pests away from the hive's true entrance.

In the inventor’s words

“By this I greatly retard the entrance of enemies and increase the chances of their eventual exclusion or destruction.”— Levi Brown, from the specification

Commentary

Eleven years after Langstroth, Levi Brown of Pontiac, New York is already working inside the movable-frame paradigm — but he's still fighting the older war, the one against the wax moth. His lead claim is a pair of hinged shutters at the entrance, angled toward each other so that crawling pests get funneled down through holes at the rear rather than into the brood nest. It's a moth trap grafted onto a modern hive, which tells you exactly where beekeeping anxiety sat in 1863.

The frame details are the more interesting engineering. Instead of hanging frames on rabbets Langstroth-style, Brown locks them into notched bars at top and bottom — his stated reason is that combs won't shift or drop when the hive is moved, a real problem for anyone hauling hives. He also strings crosswise wires as comb guides and, most charmingly, fits small tubes through the frames so bees can pass sideways from comb to comb without detouring around the ends. Bees, of course, solve this themselves by leaving gaps at the comb edges, and any tube through brood comb is a propolis magnet.

Look at Fig. 3 and you'll see the density of it: rows of diamond-tipped frame ends, the shutter geometry, the opaque ventilating button with its light-baffled air passage. It's a thoughtful, over-specified hive from a decade when every county had one. The notched-bar frame lock is the piece with a future; the rest is period worry made in wood.

Fate unknown

No documented production or surviving example is known to me; a marked hive or a listing in 1860s apiarian journals would settle it.

This drawing is free. It is a work of the United States government, published October 20, 1863, and has been in the public domain since the day it was printed. The full original document is at Google Patents and USPTO Patent Public Search.