<html><head><meta http-equiv="content-type" content="text/html; charset=utf-8"></head><body dir="auto"><div>Just did a quick google & there are hydraulic rim bicycle brakes as well as the disc brakes.</div><div>These look like they could be possibly adapted.</div><div><span style="font-size: 15px; line-height: 19px; white-space: nowrap; -webkit-tap-highlight-color: rgba(26, 26, 26, 0.296875); -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-composition-frame-color: rgba(77, 128, 180, 0.230469); -webkit-text-size-adjust: none; "><a href="http://www.bikerumor.com/2013/04/15/sram-hydro-r-hydraulic-road-rim-disc-brakes-unveiled-details-first-rides/">http://www.bikerumor.com/2013/04/15/sram-hydro-r-hydraulic-road-rim-disc-brakes-unveiled-details-first-rides/</a></span></div><div><span style="font-size: 15px; line-height: 19px; white-space: nowrap; -webkit-tap-highlight-color: rgba(26, 26, 26, 0.296875); -webkit-composition-fill-color: rgba(175, 192, 227, 0.230469); -webkit-composition-frame-color: rgba(77, 128, 180, 0.230469); -webkit-text-size-adjust: none; ">Alan</span></div><div><br></div><div><br><br>Sent from my iPad</div><div><br>On 19/09/2013, at 9:34 PM, hank pronk <<a href="mailto:hanker_20032000@yahoo.ca">hanker_20032000@yahoo.ca</a>> wrote:<br><br></div><blockquote type="cite"><div><div style="color:#000; background-color:#fff; font-family:tahoma, new york, times, serif;font-size:12pt"><div style="RIGHT: auto"><span style="RIGHT: auto">Hi Alan,</span></div>
<div style="FONT-SIZE: 16px; FONT-FAMILY: tahoma, new york, times, serif; RIGHT: auto; COLOR: rgb(0,0,0); FONT-STYLE: normal; BACKGROUND-COLOR: transparent"><span style="RIGHT: auto">After some more thought, I have changed my mind about bicycle brakes. The problem is the caliper has a rather large piston area. This gives you better brake force, but it would hurt you when you put water pressure against it. You want a small piston like a hydraulic clutch in a car. I would use the clutch parts because they would also be aluminum and much tougher. You would need to remove the piston and machine an o-ring glove because the normal seal is designed to push in one direction only.</span></div>
<div style="FONT-SIZE: 16px; FONT-FAMILY: tahoma, new york, times, serif; RIGHT: auto; COLOR: rgb(0,0,0); FONT-STYLE: normal; BACKGROUND-COLOR: transparent"><span style="RIGHT: auto">Hank<var id="yui-ie-cursor"></var></span><br></div>
<div style="FONT-SIZE: 12pt; FONT-FAMILY: tahoma, new york, times, serif">
<div style="FONT-SIZE: 12pt; FONT-FAMILY: times new roman, new york, times, serif">
<div style="RIGHT: auto" dir="ltr">
<div class="hr" style="FONT-SIZE: 0px; BORDER-TOP: #ccc 1px solid; HEIGHT: 0px; BORDER-RIGHT: #ccc 1px solid; BORDER-BOTTOM: #ccc 1px solid; PADDING-BOTTOM: 0px; PADDING-TOP: 0px; PADDING-LEFT: 0px; MARGIN: 5px 0px; BORDER-LEFT: #ccc 1px solid; LINE-HEIGHT: 0; PADDING-RIGHT: 0px" readonly="true" contenteditable="false"></div><font size="2" face="Arial"><b><span style="FONT-WEIGHT: bold">From:</span></b> hank pronk <<a href="mailto:hanker_20032000@yahoo.ca">hanker_20032000@yahoo.ca</a>><br><b><span style="FONT-WEIGHT: bold">To:</span></b> Personal Submersibles General Discussion <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> <br><b><span style="FONT-WEIGHT: bold">Sent:</span></b> Thursday, September 19, 2013 4:21:36 AM<br><b><span style="FONT-WEIGHT: bold">Subject:</span></b> Re: [PSUBS-MAILIST] hydraulics<br></font></div>
<div class="y_msg_container"><br>
<div id="yiv7503602762">
<div>
<div style="FONT-SIZE: 12pt; FONT-FAMILY: tahoma, new york, times, serif; COLOR: #000; BACKGROUND-COLOR: #fff">
<div><span>H Alan,</span></div>
<div style="FONT-SIZE: 16px; FONT-FAMILY: tahoma, new york, times, serif; COLOR: rgb(0,0,0); FONT-STYLE: normal; BACKGROUND-COLOR: transparent"><span>Bicycle brakes would probably work quite well because they are made from very good material. </span></div>
<div style="FONT-SIZE: 16px; FONT-FAMILY: tahoma, new york, times, serif; COLOR: rgb(0,0,0); FONT-STYLE: normal; BACKGROUND-COLOR: transparent"><span>Hank<var id="yiv7503602762yui-ie-cursor"></var></span></div>
<div><br></div>
<div style="FONT-SIZE: 12pt; FONT-FAMILY: tahoma, new york, times, serif">
<div style="FONT-SIZE: 12pt; FONT-FAMILY: times new roman, new york, times, serif">
<div dir="ltr">
<div class="yiv7503602762hr" style="FONT-SIZE: 0px; BORDER-TOP: #ccc 1px solid; HEIGHT: 0px; BORDER-RIGHT: #ccc 1px solid; BORDER-BOTTOM: #ccc 1px solid; PADDING-BOTTOM: 0px; PADDING-TOP: 0px; PADDING-LEFT: 0px; MARGIN: 5px 0px; BORDER-LEFT: #ccc 1px solid; LINE-HEIGHT: 0; PADDING-RIGHT: 0px"></div><font size="2" face="Arial"><b><span style="FONT-WEIGHT: bold">From:</span></b> Alan <<a href="mailto:alanlindsayjames@yahoo.com">alanlindsayjames@yahoo.com</a>><br><b><span style="FONT-WEIGHT: bold">To:</span></b> Personal Submersibles General Discussion <<a href="mailto:personal_submersibles@psubs.org">personal_submersibles@psubs.org</a>> <br><b><span style="FONT-WEIGHT: bold">Sent:</span></b> Wednesday, September 18, 2013 11:55:49 PM<br><b><span style="FONT-WEIGHT: bold">Subject:</span></b> Re: [PSUBS-MAILIST] hydraulics<br></font></div>
<div class="yiv7503602762y_msg_container"><br>Hi Brian,<br>I've wondered about this also.<br>I was looking at the hydraulic brakes they have on bicycles now days &<br>wondering if you could adapt them for functions like releasing emergency<br>bouys or similar. The manual hydraulics they have on boats, like steering units<br>are pretty expensive. Would be good to find something of suitable material<br>off the shelf hat could be used.<br>Alan<br>.<br>Sent from my iPad<br><br>On 16/09/2013, at 5:28 AM, "brian" <<a href="mailto:brian@ojaivalleybeefarm.com" rel="nofollow" target="_blank" ymailto="mailto:brian@ojaivalleybeefarm.com">brian@ojaivalleybeefarm.com</a>> wrote:<br><br>> I wonder if those human powered hydraulics could have an application for our boats, like the cats in the America's cup.<br>> <br>> Brian<br>> _______________________________________________<br>> Personal_Submersibles mailing list<br>> <a href="mailto:Personal_Submersibles@psubs.org" rel="nofollow" target="_blank" ymailto="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br>> <a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" rel="nofollow" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br><br>_______________________________________________<br>Personal_Submersibles mailing list<br><a href="mailto:Personal_Submersibles@psubs.org" rel="nofollow" target="_blank" ymailto="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a><br><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles" rel="nofollow" target="_blank">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a><br><br><br></div></div></div></div></div></div><br><br></div></div></div></div></div></blockquote><blockquote type="cite"><div><span>_______________________________________________</span><br><span>Personal_Submersibles mailing list</span><br><span><a href="mailto:Personal_Submersibles@psubs.org">Personal_Submersibles@psubs.org</a></span><br><span><a href="http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles">http://www.psubs.org/mailman/listinfo.cgi/personal_submersibles</a></span><br></div></blockquote></body></html>