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Member Since 04 Apr 2011
Offline Last Active Today, 07:48 AM

Posts I've Made

In Topic: Still eatng batteries?

21 September 2014 - 08:29 AM

As I understood it the calcium was introduced into the plate construction to reduce gassing at any particular voltage, allowing higher charge voltages to be usefully employed. The most noticeable characteristic is the well defined cut off of current draw when fully charged. Little more than an amp on a 550 Ah bank even as 15 volts is approached.

In Topic: Small washer dryers

21 September 2014 - 08:16 AM


Blimey! "The best 3 kg washing machine in the world" 


I wonder what it does that my Zanussi ZWC1300W doesn't? 


Well I also have the same Zanussi now but haven't had the opportunity to check it out over 13 years, 40,000nm and several ocean crossings yet.

In Topic: Klaxon refurbishers

19 September 2014 - 04:35 PM

Rebuilt quite a few of these both manual and electric motor operated. The one in the OP has almost certainly lost (broken or missing) its return spring.


The popular Klaxon ES type are still available new as below, and have a spring inside the square tubing that supports the toothed square section operating rod. The toothed rod drives a geared free-wheeling flywheel that also has a toothed striker on its shaft operating on a central stud fixed to the sound diaphragm.



Note the tight fitting innards have to be removed and re-inserted in a certain order to avoid tears. Carefully note and replace diaphragm shims in correct order during disassembly as well to ensure same tone.


Most other manual horns work on a similar principle to above with the notable exception of a clever design by one Eugene Cowey. He patented a design of manually operated horn using an ingenious course pitch threaded rod similar to a toy top mechanism operated by the plunger. A ratchet mechanism engaged only on the down stroke provides free-wheeling action on a flywheel which contains several steel rollers free to move within the confines of short slots around the periphery. Supported on ball races, centrifugal force when the flywheel spins throws out the rollers that act on a central stud on the sound diaphragm, allowing a very long overrun sound as flywheel slows and they retract. The return spring of operating plunger can be seen in diagram below.



In Topic: Small washer dryers

19 September 2014 - 04:21 PM

We will be modifying the existing utility cupboard to take a washing machine so can pretty much do this to suit any machine. We would like one designed for marine use as we will still be lumpy water boating despite their higher price tag.


How would a standard household machine cope with use on a sea boat?


We obviously wouldnt be doing a load of washing at sea but the machine would still have to cope with the movement of the boat. Although this wont be crash bang boom like it is with NC it wont be smooth either!


Eumenia worked during an Atlantic crossing if that helps. Held down with ratchet strap its drain was a "T" into a deck drain pipe.


You may be alarmed at the price but as I said above its the only one that would fit the dedicated space (formally a towel cupboard) and also drop through the stateroom hatch.

In Topic: HIN Number identification

19 September 2014 - 04:10 PM

KBW = Kate Boats Warwick