Quote:
Originally Posted by David Dunlop
Great find with the old photos, Bruce.
I had not considered extending the length of the spring steel strip to curve around the inside edge of the door frame like that.
That would greatly reduce the chance of the open end of the strip snagging on clothing and getting bend or broken. Especially when the door was open and the strip relaxed.
David
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I was also wondering why they placed the switch on the latch side of the door where the plunger would be at right angles to the movement of the door. In domestic house uses the switch is on the hinge side so the closing door pushes the plunger in the direction it wants to go. But then I figured the amount of movement at the hinge side is very little compared to the latch side resulting in more door travel before the switch is actuated (leaving the lights on longer to be seen). By putting the switch at the latch side very little door movement is required before the the switch breaks the circuit reducing the opportunity for stray light. They were some clever back then!!
Of note too the side door has the switch and spring tab at the very top out of the way. The back door switch is just below the generator cabinet half way down the door opening which was required because there is no access to the upper part of the door frame...because of the cabinet.