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<p>[QUOTE=&quot;UncleChuckTX, post: 15878, member: 154&quot;]Does anyone have any idea about the purpose of this tool?&nbsp; It appears to be cast iron, which at one time had some type of top layer that has worn away (nickel, chrome, etc?).</p><p><br /></p><p>It&#039;s fully marked, and I&#039;ve found information about the maker.&nbsp; But I have no idea what kind of instrument it is, and if I have the whole thing.&nbsp; The knobs (cleats?) on the outside of the ends make me think that there are pieces missing which would have attached there.</p><p><br /></p><p>Here is the bio of the creator:&nbsp; <a href="http://rutherfordvet.com/about-us/history.html" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://rutherfordvet.com/about-us/history.html" rel="nofollow">http://rutherfordvet.com/about-us/history.html</a></p><p><br /></p><p>I did try to contact them, but got no response.&nbsp; If no one knows what the tool is, could you give me pointers on how to search for the patent?&nbsp; I tried looking this up by inventor name and patent number at the US government patent site, but had no luck.</p><p><br /></p><p>If you have any ideas or can point me in the right direction, I would appreciate it.</p><p><br /></p><p>Open</p><p>[ATTACH=full]3846[/ATTACH] </p><p><br /></p><p>Closed</p><p>[ATTACH=full]3847[/ATTACH] </p><p><br /></p><p>Back side.&nbsp; The tension knob is unfortunately rusted in place.</p><p>[ATTACH=full]3848[/ATTACH]</p><p><br /></p><p>Dr. Frank E. Rutherford, Maker, Patented </p><p>[ATTACH=full]3849[/ATTACH]</p><p><br /></p><p>Pat. 07 </p><p>[ATTACH=full]3850[/ATTACH]</p><p><br /></p><p>Dallas, Tex - DRS. R. &amp; R. Co. -</p><p>Coincidentally, there is a letter from Dr. Rutherford with the company name listed now on eBay:</p><p><a href="http://www.ebay.com/itm/1912-DR-FRANK-RUTHERFORD-VETERINARY-LETTER-DALLAS-TEXAS-/140423037966" target="_blank" class="externalLink ProxyLink" data-proxy-href="http://www.ebay.com/itm/1912-DR-FRANK-RUTHERFORD-VETERINARY-LETTER-DALLAS-TEXAS-/140423037966" rel="nofollow">http://www.ebay.com/itm/1912-DR-FRANK-RUTHERFORD-VETERINARY-LETTER-DALLAS-TEXAS-/140423037966</a></p><p>[ATTACH=full]3851[/ATTACH][/QUOTE]</p><p><br /></p>

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