The Craftmans Shop > New from Old

1899 Hall Bicycle Alarm

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Powder Keg:
I've been out in the shop making chips\o/ This whistle was missing a few parts. I'm going to make new ones going off pictures that I found on the net.



To get started it needed a plunger button. I chucked up a piece of shaft and turned a profile on the bottom.



I then cut it off and turned it around and machined the top profile.



The top mount was missing. There is a link between the whistle and the clamp. I made that next. First I cut off a piece of stock.



Then I drilled a hole for the plunger to go through and milled a slot so the whistle can be adjusted.



Then, using a hand held grinder I shaped the outside profile.



Next I got started on the clamp pieces. A little layout blue and some chicken scratches I have the positions for a couple holes.



I use a block of wood to back up the thin metal. It makes it easier to drill.



Then off to the band saw. The drilled holes were just to get nice rounded corners. The rest of the clamp was cleaned up with a file.



Lots of filing and here is where we are now. I'm now making a press block to shape the clamp pieces.



Hope you enjoy watching:o)

~Wes~

daz:
Tut Tut, using one of those fine wee cutting discs as a grinding wheel, naughty boy :bugeye:
I done the same last week but took it a bit too far, glad I had my safety googles on but I wish I had bothered to look for my full face mask.
Good work though, that thing looks pretty interesting and it's nice to see old things brought back to life and given another chance  :clap:

well done

andyf:
What a splendidly complicated contraption, Wes!

Were they run continuously to warn pedestrians that an almost silent bicycle was approaching, or were they dropped onto the wheel when needed, and lifted off when the way was clear?

Not quite the right time period for your 1źd, but still a splendid accessory for it.

Andy

Powder Keg:
I needed the thin disc to grind the profile. Hardly any pressure was required to do the grinding this is a pretty small part. Glad you like it:o)

~Wes~

Powder Keg:
Andy, There is a spring that lifts the whistle off the wheel. To operate you press down on the plunger that I'm making. I still need to find the spring. I have a PDF of the whistle patent drawing. Can anyone convert it to a JPEG?

~Wes~

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