Treloar's great book, now in my collection

Discussion in 'General Slingshot Discussions' started by JoergS, Mar 13, 2012.

  1. JoergS

    JoergS Administrator

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    This book, long out of print, is still THE monograph about rubber.<br><br>It goes over my head in many ways, but my physicist brother will explain the "mystical" parts, hopefully. <br><br>I paid about 7 Euros for it, plus P+P. It came from the library of a college in London. The library reg card is still in it. It has been issued about 55 times in roughly 35 years, and must have been read countless times in the library itself. <br><br>I love old books like this, especially when they deal with slingshot related stuff <img src="http://illiweb.com/fa/i/smiles/icon_smile.gif" alt="Smile" longdesc="2"><br><br>What piqued my interest was Treloar's chapter regarding the swelling effect of rubber soaked in certain liquids - they obviously change their nature when "swolen". Will it improve power, stretch, speed? I have to find out. <br><br><br><div style="margin:auto;text-align:center;width:100%">
    <a href="http://1.bp.blogspot.com/-uyHBMlUsvLE/T1_Yi5CWAbI/AAAAAAAABbg/vK8GdsKZG6o/s1600/treloar1.JPG" class="postlink" target="_blank" rel="nofollow"><img src="http://1.bp.blogspot.com/-uyHBMlUsvLE/T1_Yi5CWAbI/AAAAAAAABbg/vK8GdsKZG6o/s320/treloar1.JPG" border="0" alt=""></a><br><br><a href="http://2.bp.blogspot.com/-PhgwMWfc-DY/T1_YkNqYz1I/AAAAAAAABbo/LN7AESsao-Q/s1600/treloar2.JPG" class="postlink" target="_blank" rel="nofollow"><img src="http://2.bp.blogspot.com/-PhgwMWfc-DY/T1_YkNqYz1I/AAAAAAAABbo/LN7AESsao-Q/s320/treloar2.JPG" border="0" alt=""></a><br><br><a href="http://4.bp.blogspot.com/-XIcDmbRp1lg/T1_YlG0V1GI/AAAAAAAABbw/H3U1pFn-_jk/s1600/treloar3.JPG" class="postlink" target="_blank" rel="nofollow"><img src="http://4.bp.blogspot.com/-XIcDmbRp1lg/T1_YlG0V1GI/AAAAAAAABbw/H3U1pFn-_jk/s320/treloar3.JPG" border="0" alt=""></a><br><br><a href="http://3.bp.blogspot.com/-Bx56Z-897wE/T1_YmiJcxkI/AAAAAAAABb4/tx1l9Z2bmRQ/s1600/treloar4.JPG" class="postlink" target="_blank" rel="nofollow"><img src="http://3.bp.blogspot.com/-Bx56Z-897wE/T1_YmiJcxkI/AAAAAAAABb4/tx1l9Z2bmRQ/s320/treloar4.JPG" border="0" alt=""></a>
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  2. Sonic

    Sonic New Member

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    i seen on a video somewhere in the depths of youtube about <i>boiling</i> bands ? said to improve the speed of the bands.. not got a clue myself but maybe something to look into ?
     
  3. Sonic

    Sonic New Member

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    found it <a href="http://www.youtube.com/watch?v=arasZFuCXUA" class="postlink" target="_blank" rel="nofollow">here</a> , according to this guy and the stats he posted its quite a considerable inprovement in fps :O
     
  4. e_monster55

    e_monster55 New Member

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    I saw BOOK and immediately wanted to find out more, reading s kinda dying out so it's good to see others are still reading physical books..
     
  5. JoergS

    JoergS Administrator

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    <table width="90%" cellspacing="1" cellpadding="0" border="0" align="center">
    <tr><td><span class="genmed"><b>Sonic wrote:</b></span></td></tr>
    <tr><td class="quote"> according to this guy and the stats he posted its quite a considerable inprovement in fps :O </td></tr>
    </table>
    <span class="postbody"><br><br>Torsten heated the bands with hot water. Water does not create the swelling effect, according to Treloar. And I think the spray of water confused the chrony, so I doubt the credibility of this shot. Heated bands to improve the power as the heat increases the draw weight, but the effect isn't all that great on a warm day. <br><br>Benzene is the best liquid for the swelling effect, says Treloar.</span>
     
  6. Sonic

    Sonic New Member

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    <table width="90%" cellspacing="1" cellpadding="0" border="0" align="center">
    <tr><td><span class="genmed"><b>JoergS wrote:</b></span></td></tr>
    <tr><td class="quote">
    <table width="90%" cellspacing="1" cellpadding="0" border="0" align="center">
    <tr><td><span class="genmed"><b>Sonic wrote:</b></span></td></tr>
    <tr><td class="quote"> according to this guy and the stats he posted its quite a considerable inprovement in fps :O </td></tr>
    </table>
    <span class="postbody"><br><br>Torsten heated the bands with hot water. Water does not create the swelling effect, according to Treloar. And I think the spray of water confused the chrony, so I doubt the credibility of this shot. Heated bands to improve the power as the heat increases the draw weight, but the effect isn't all that great on a warm day. <br><br>Benzene is the best liquid for the swelling effect, says Treloar.</span>
    </td></tr>
    </table>
    <span class="postbody"><br><br>Will you be doing a video that chrono tests all these theories ? the hot water , benzine etc ? <br><br>would be very interested to find out the effects if any <img src="http://illiweb.com/fa/i/smiles/icon_biggrin.png" alt="Very Happy" longdesc="1"></span>
     
  7. onnod

    onnod Im from Holland, isnt that weird?

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    <table width="90%" cellspacing="1" cellpadding="0" border="0" align="center">
    <tr><td><span class="genmed"><b>Sonic wrote:</b></span></td></tr>
    <tr><td class="quote"> Will you be doing a video that chrono tests all these theories ? the hot water , benzine etc ? <br><br>would be very interested to find out the effects if any <img src="http://illiweb.com/fa/i/smiles/icon_biggrin.png" alt="Very Happy" longdesc="1">
    </td></tr>
    </table>
    <span class="postbody"><br>yeah that would be interesting</span>
     
  8. JoergS

    JoergS Administrator

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    Hot water simply heats the bands. I think I have sufficiently researched this matter.<br><br>Benzene is toxic and can cause cancer... I am a bit reluctant to test with it. Treloar lists a few other liquids that also show the effect, just slightly weaker... maybe one of these liquids is easily available and not as nasty.
     
  9. ketansa

    ketansa New Member

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    <table width="90%" cellspacing="1" cellpadding="0" border="0" align="center">
    <tr><td><span class="genmed"><b>JoergS wrote:</b></span></td></tr>
    <tr><td class="quote">Hot water simply heats the bands. I think I have sufficiently researched this matter.<br><br>Benzene is toxic and can cause cancer... I am a bit reluctant to test with it. Treloar lists a few other liquids that also show the effect, just slightly weaker... maybe one of these liquids is easily available and not as nasty.</td></tr>
    </table>
    <span class="postbody"><br><br>You can work with benzene with mask. A few experiments don't do harm. If inhaled for years, it causes the cancer and other ailments. If you soak the rubber in Benzene, it dissolves in it and swells. If kept for longer and stirred it will completely dissolve. Thats how Rubber paints and rubber cement is made.<br><br>But the benzene starts to evaporate, and does not stay forever. Lets see if the swelling effect stays. <img src="http://illiweb.com/fa/i/smiles/icon_study.png" alt="study" longdesc="34"><br>looking forward ))</span>
     
  10. JoergS

    JoergS Administrator

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    Here, benzene isn't freely available, only as a weak solution. <br><br>But Treloar says petrol works almost as good. No problem getting that stuff, albeit the prices are high <img src="http://illiweb.com/fa/i/smiles/icon_smile.gif" alt="Smile" longdesc="2">
     
  11. SkauneJohan

    SkauneJohan Member

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    here in scandinavia we call gasoline/petrol<br><br>"benzin" <img src="http://illiweb.com/fa/i/smiles/icon_lol.gif" alt="Laughing" longdesc="7"> that is why I thought when I red it that is easy to get anywhere <br><br>cheers/johan
     
  12. JoergS

    JoergS Administrator

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    We call petrol "Benzin" as well. But "Benzene" is "Benzol" in German, a very different chemical.
     
  13. sotiris

    sotiris New Member

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    I've worked a lot with benzol in my university's lab, nasty staff..avoid it as much as you can.Im interested to see if the petrol theory stands up
     
  14. zamarion

    zamarion New Member

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    i realy look forward of seeing the tests with different kinds of soaking maybe if it does increase speed it does increase accuracy right?