- Fahnestock clip
A Fahnestock clip (also sometimes spelled "Fahnstock") is an early technology for a mechanical
electrical terminal . It consists of a single piece of flexiblemetal with a rectangle punched out of one end and a loop punched out of the other. The clip is bent over itself so the loop can be pushed through the rectangular opening. Awire can be inserted through the loop that is through the cut out, and the spring force of the clip pulling up makes an electrically sound mechanical connection.Fahnestock clips were commonly made of
phosphor bronze orspring steel and plated withtin for goodelectrical conductivity andcorrosion -resistance.Fahnestock clips were seen on early
radio receiverbreadboard construction, model train power connections, and the like. Today, they have largely been supplanted bybinding post s. They remain in use in elementary school, where their ease of use and visible connections make them a popular way for science instructors to teach the creation of simple circuits.The clip was patented
26 February 1907 [US patent reference
number = 0845268
y = 1907
m = 02
d = 26
inventor = John Schade
title = SPRING TERMINAL-CLIP] by John Schade Jr., assigned to Fahnestock Electric Co. Less than 2 weeks after the patent was issued they filed for reissue. [US patent reference
number = RE12642
y = 1907
m = 03
d = 11
inventor = John Schade
title = SPRING TERMINAL-CLIP]References
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