2009年4月2日星期四

Langstroth hive

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And you can see more from Video Games For X Box Hand Painted Box Packaging Gift Boxes Lighting For Film Start Box bopp printing film Switch Control Box Hand Made Box Connectivity Box A frame from a Langstroth hive (seen behind)Langstroth hives on palletsThe Langstroth bee hive is the standard beehive used in many parts of the world for bee keeping. The advantage of the Langstroth hive over hives previous to its invention on October 30, 1851, is that the bees build honeycomb into frames, which can be moved with little trouble because the frames are designed so that the bees do not build wax honeycomb attached to the inside of the hive, and do not cement the frames to the side of the box using a resinous substance called propolis. This ability to move the frames allows the beekeeper to manage the bees in a way that had previously been impossible.Other inventors, notably Huber, had designed hives with movable frames, but Langstroth's hive was the first practical movable frame hive which overcame the tendency of the bees to fill empty spaces with comb and to cement smaller spaces together with propolis. This practicality is demonstrated by the eventual adoption of the Langstroth hive over all others, and its current use throughout the world.Contents1 History 2 Design 2.1 Outer cover 2.2 Inner cover 2.3 Hive body and hive super 2.4 Bottom board 2.5 Specialty parts 2.5.1 Cloake board 2.5.2 Queen excluder 2.5.3 Feeders 2.5.4 Escape boards 3 References 4 Patents 5 See also // HistoryIn 1851 the Reverend Lorenzo Lorraine Langstroth (1810-1895), a native of Philadelphia, discovered that if a space of 1cm (3/8 inch) is left in the hive for the bees to move around in, the bees will neither build comb in the space nor cement it shut. This he called "bee space." During the summer of 1851 he applied the concept to keeping the lid free on a top-bar hive, but in the fall of 1851 he realized that the discovery could be applied to a newly designed frame that would prevent the bees from attaching honeycomb to the inside of the hive box. This attachment of comb to the hive wall is a difficulty with frameless designs, such as Dzierzon's frameless movable comb hive. U.S. Patent 9300 was issued on October 25, 1852 and remained valid despite numerous attempts to challenge it based on its alleged use of prior art.In 1853, Rev. Langstroth published a book called "The Hive and the Honey Bee". This book describes the use and dimensions of the modern bee hive as we know it today. Prior to discovery of the so call presently bee space, bees were hived in skeps (conical straw baskets) or gums (hollowed out logs that approximated the natural dwellings of bees) or, in the U.S., the box hive (a thin walled wooden box with no internal structure).In the years 1845-1850 Dr. Jan Dzier?on determined the correct distance needed to space the top bars movable frames in beehives. The distance between combs had been described as 1? inches (38.1mm) from the center of one top bar to the center of the next one. In this case, the distance between combs is 1/2 inch (12.7mm), i.e. twice the minimal 鎻礶e space of 1/4 an inch (6.35mm).[1] This setup had been established for the brood chamber, as for honey storage the comb distance can be different.In 1848 Jan Dzierzon introduced grooves into the hive鎶?side walls to replace the strips of wood that the top bars had earlier been hung from.[2] The grooves were 8 x 8mm an average between 1/4 and 3/8 of an inch. Currently, 3/8 of an inch (6.35 - 9.53mm) is named 鎻礶e space.In Europe, both Dzierzon and Berlepsch had been focused on side-opened hives. The land resources had been limited and traditionally the bee hives had been kept in beehouses. The so called 鎻礶e space had been incorporated by Berlepsch, following Dzierzon鎶?discoveries, into his frame arrangement (Bienen-Zeitung, May 1852). It means the correct distance between side bar of the frame and hive wall was already there in Europe.In America, L.L. Langstroth's patent dated 5 October 1852 adopted 3/8 of an inch (9.53mm) between the side bars of a frame and hive wall and also reserved rights to use the distance 1/2 inch (12.7mm) between top bars and inner cover, which leaves too great a space to be appropriate.The name "bee space was invented later than 1852. In incorrect interpretations, the term mixes together the inter-comb space, 1/2 inch (12.7mm), the distance from frame to hive wall, 1/4 - 3/8 inch (6.35 - 9.53mm), and even the distance from the frame to the hive bottom, which can be 1/4 to 3/4 inch (6.35 - 19.05mm) or even 1 inch (25.4mm).L. L. Langstroth knew all about Dzierzon鎶?discoveries. Before 1 Nov. 1851 he read the "Theorie und Praxis, ..." publicized by Jan Dzierzon in 1848. Samuel Wagner the founder of "American Bee Journal" translated the work in 1850 and made it available to Langstroth in the summer of 1851. [3] Moreover, Samuel Wagner visited Jan Dzierzon in his apiaries in Silesia...(and so on)


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