|SELECT DISTINCT patent.*, YEAR(date) as year FROM patent WHERE (category = 'Metal') ORDER BY date ASC, patent, type|
Total of 6 patents found where: Category is 'Metal';
View a patent by clicking on the patent number. You can sort by any of the columns by clicking on the column name.
|T / S||Patent||Date||Description||Patentee||Category||Assigned To|
|U||8,418||October 14, 1851||Improvement in Insulators for Telegraph Wires
Metal or cast iron insulator with cupped dry area at bottom. Glass poured in with a conductor supporting iron rod embedded in the glass, and the cupped is coated or lined with glass, porcelain, or enamel. The bottom skirt is slanted inward 45 degrees to prevent water from splashing up inside wetting the interior surface. This feature was utilized in U-983 and U-984 made by the U. S. Pottery Co. in Bennington, VT.
|BATCHELDER, John M.
|U||71,564||November 26, 1867||Improvement in Telegraph Insulators
Metal shell lined with glass or porcelain with wooden pin and paraffin cavity
|WOOD, Merritt L.
||Metal||2/3 to S. Porter & L. M. Monroe|
|U||310,059||December 30, 1884||Insulator
Metal plate to hold wire on side of insulator
|JAMES, Hamilton L.
|U||750,722||January 26, 1904||Insulator
Metal encased insulator with metal cap to hold cable (Brown p. 25)
|U||849,731||April 9, 1907||Insulator
Metal crown cap
|U||1,988,369||January 15, 1935||Radio Interferenceproof Insulator
Metal cap cemented into recessed formed in top of pin type insulator
|BROWN, Harold H.
||Metal||Locke Insulator Corp.|
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