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Wirenuts! American? we were using them in the 1930,s Ill have you know. They were called scruits, and came with the tag line "atwist of the wrist makes the joint"
https://www.flickr.com/photos/govert1970/6192436099/
Phil
East Yorks.
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"William P. Marr emigrated from Scotland to Ontario, Canada early in the twentieth century. After settling in the Toronto area, he was employed as a contractor for Ontario Hydro, where he worked as an electrician, converting gas-lit homes to electrical incandescent lighting.
At that time, the accepted practice for joining conductors was a process called solder and tape. Typically, a mechanic would first install the insulated wires; then an electrician cleaned the exposed conductors, twisted them together, then firmly joined the conductors's ends by dipping them into a pot of molten solder. After cooling, the jointed exposed conductors were wrapped with insulating tape.
The process was time-consuming and potentially dangerous. Marr was injured when he spilled molten solder on himself. Seeking a safer and more efficient way of joining electrical conductors, Marr, working in his home workshop, developed the first pressure-type wire connector and, in 1914, produced a set-screw version which was the forerunner to the present-day twist-on connector now used in North America."
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Certainly I can remember screw on porcelain ones used in my parent house that was built just pre-war (1939-45 war) - probably 1937-8 along with rubber and cotton '7-029' wires
Andrew Mawson, proud to be a member of MetalworkingFun Forum since Oct 2013.
(08-24-2014, 08:36 AM)hermetic Wrote: Wirenuts! American? we were using them in the 1930,s Ill have you know. They were called scruits, and came with the tag line "atwist of the wrist makes the joint"
https://www.flickr.com/photos/govert1970/6192436099/
Phil
East Yorks.
"Ill have you no" they were invented across the pond , my memory failed me ,as Ed points out they were invented in Canada 1914 .
Rob