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ID help, please!

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  • #1

    ID help, please!

    I would appreciate any help that could be provided in identifying my propeller, so thank you, in advance. It has 12 holes, so I assume it has be re-drilled to fit a different engine.

    Stats:
    91.750" Long
    2.700" Inner Diameter
    5.250" Bolt Hole Circle (12X) 0.460" holes

    Here are the links to my pictures:

    Characters in this picture are: [ DES H-609 RH, NO 13117 ]
    http://s38.photobucket.com/albums/e1...t=DSC03327.jpg

    Characters in this picture are:[ (clockwise) 5052?, 3, 1, 4 ]
    http://s38.photobucket.com/albums/e1...t=DSC03326.jpg

    Characters in this picture are:[ PATENT NO 1.404.808., JANUARY 31TH.1922]
    http://s38.photobucket.com/albums/e1...t=DSC03324.jpg

    This is an overall view of the prop:
    http://s38.photobucket.com/albums/e1...t=DSC03321.jpg
    Tags: None
  • #2
    Nothing???!!!

    Oh, come on, guys!! This post has been up here a week, been read a few dozen times, and not received a comment??

    I assume that means that this is a difficult nut to crack- the likes have never been seen before? Or does it mean that this prop is so common that every TGIFriday's has one over the bar?

    Humbly,

    Brian.

    Comment

    • #3
      It's the former. I've looked through some stuff and haven't been able to match the number. I'll spend a little more time at it as soon as I get done with my daughter's wedding this weekend.
      Dave

      Comment

      • #4
        Dave-

        You are very kind and certainly appreciated. Congratulations on your daughter's wedding and enjoy your weekend.

        Sincerely,

        Brian.

        Comment

        • #5
          I too have looked through some stuff and tried to do research on this prop to no avail. However, I'm not finished yet!

          Lamar

          Comment

          • #6
            Guys,

            Thanks for your efforts.

            Brian.

            Comment

            • #7
              I looked up the patent number stamped into the metal sheathing. It was issued on the date shown on the prop to one Harold M. Gusdorf of Indianapolis, IN for "... new and useful Improvments to Two-Ply Pigskin Belts..." relating "... to the structure of belts for pulleys ...". See http://patimg1.uspto.gov/.piw?Docid=...iew+first+page for the full text and drawings. Nowhere did I see any mention of aircraft, aviation or propellers! What a mystery!

              You may need a special browser plugin to view the patent office images. They recommend http://www.alternatiff.com/ which I installed with excellent results.

              Lamar

              Comment

              • #8
                Adding to the mystery...

                Lamar-

                Thanks for your hard work. It looks like you are coming at this from several different angles.

                I see what you mean! This is odd! The date and the patent # match, but, on the surface, it certainly doesn't look related to my prop!! Is it normal to have a patent # on a propeller?

                I have looked through the pictures of other props and although there are some similarities, it does look a little different than any of the others. In your searches, have you seen one that looks like this one?

                Brian

                Comment

                • #9
                  Re: Adding to the mystery...

                  Originally posted by meddleNmetal
                  I see what you mean! This is odd! The date and the patent # match, but, on the surface, it certainly doesn't look related to my prop!! Is it normal to have a patent # on a propeller?
                  No, I'd say that's prettty unusual unless there's something unique about the prop.

                  Originally posted by meddleNmetal
                  I have looked through the pictures of other props and although there are some similarities, it does look a little different than any of the others. In your searches, have you seen one that looks like this one?
                  I don't see anything unique or really unusual about this one.

                  Lamar

                  Comment

                  • #10
                    I've now exhausted all my resources and come up with nothing else new. Sorry.

                    Lamar

                    Comment

                    • #11
                      Lamar-

                      Thank you for all of your help! It has been interesting and greatly appreciated!

                      Brian.

                      Comment

                      • #12
                        Mystery patent...

                        Not much mystery, just a missprint on the prop!
                        The correct patent number is 1404849, also dated Jan 31, 1922, referring to the metal sheeting on wooden propellers , making this in several pieces to avoid permanent deformation of the metal produced by flexing of the wood at high speeds.
                        Now I just wonder, did this invention really solve an existing problem, and has it been in common use since then?

                        Carl J. Naucler

                        Comment

                        • #13
                          Some of the wooden props from the 1920's have multipart metal sheathing along the leading edge. What purpose these served I do not know. Later wooden props have one piece metal sheathing and they continue to be manufactured that way today.

                          Lamar

                          Comment

                          • #14
                            naucler,

                            Could you provide me a link to that patent reference? I can't seem to get there with just the number.

                            Thanks to everyone that has spent even a moment chasing this one down. It is appreciated.

                            Brian.

                            Comment

                            • #15
                              patent number

                              You must have the "alternatiff" plugin installed to your browser, then try this link: http://patimg1.uspto.gov/.piw?Docid=...iew+first+page

                              The way I found it was through http://www.uspto.gov/index.html - how to search - SEARCH patents now - patent number search - (type pat.nº, 1404849) - images

                              There it is: "SHEATHING FOR AEROPLANE PROPELLERS" by T.F: Hamilton

                              Carl

                              Comment

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