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21-7-2014 04:43:59  #1

Can bells be made louder?

Hi - I have a number of portable typewriters (Olympias, Olivettis) and am wondering if there is any way to adjust the bell so that it sounds louder. I have fiddled around with one machine that had a barely audible bell only to improve it very slightly, I'm sure when they left the factory they were more sonorous - is it just the ravages of time or is there some adjustment that can be made? I understand different machines have different bell mechanisms, but I guess I'm just looking for general guidelines / advice. Many thanks, John.


21-7-2014 08:43:17  #2

Re: Can bells be made louder?

No expert here (just amateur fiddler) but I have noticed that many bells seem to have their 'centre' fixing hole drilled eccentrically.  Thus by losening the securing screw and turning the bell slightly, it can be made to lie in a more satisfactory reltionship to the hammer / clanger.  I have found that the required adjustment is often very fine.

The other aspect of this is to ensure that the hammer mechanism is clean and can move freely.  Check also that the lug (attached to the right margin release unit) which operates the hammer as it moves past it is 'raising' the hammer sufficiently.

Anyone knowing better, please add / correct.

Last edited by beak (21-7-2014 08:49:27)


21-7-2014 10:20:40  #3

Re: Can bells be made louder?

Good advice - I'll look into these suggestions. Thanks!

     Thread Starter

21-7-2014 11:16:56  #4

Re: Can bells be made louder?

I managed to give a bell a more satisfying ting by loosening the central screw a bit. Just a tiny amount was all it took.
Sometimes the hammer can be resting on the side of the bell, which means it will only give a 'dunk' sound - if you bend the wire holding the hammer, so that the hammer is a couple of millimetres away from the side of the bell, it should give you a 'ting' instead. I find that fixing a bell is very satisfying!



21-7-2014 14:22:48  #5

Re: Can bells be made louder?

Thanks for that. Maybe it's my hearing at those bell frequencies, of course (not what it used to be).

     Thread Starter

22-7-2014 09:21:31  #6

Re: Can bells be made louder?

As has already been suggested you can improve on weak bells, the method varies from machine to machine. Experimentation is the key, but most important, you have to first make sure that the hammer mechanism is working perfectly. Like every other part of the machine, the pivots and linkages of this mechanism can be adversely affected by dirt, grease, and corrosion. 

The pronoun has always been capitalized in the English language for more than 700 years.

22-7-2014 17:16:20  #7

Re: Can bells be made louder?

Clear as a bell ;)

     Thread Starter

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