Bell rings when garden gate opens?
My small city garden has a standard Victorian railing
on the street, with the gate as part of the railing.
A few days ago someone came in the garden and stole
a (locked) bike.
This made me wonder if there is any simple way
to make a bell ring when the gate is opened?
Also, is there a standard spring which will
keep the gate closed?
--
Timothy Murphy
e-mail: gayleard /at/ eircom.net
tel: +353-86-2336090, +353-1-2842366
s-mail: School of Mathematics, Trinity College, Dublin 2, Ireland
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