Free 173 Best Homemade Tools eBook:  
Become a founding member: 500+ tool plans, full site access, and more.

User Tag List

Thread: Vintage work crew photos

  1. #1611
    Supporting Member
    Join Date
    Apr 2014
    Location
    Fort Loramie, Ohio
    Posts
    39
    Thanks
    231
    Thanked 16 Times in 8 Posts

    jackhoying's Tools
    Quote Originally Posted by Jon View Post
    I really like the style of scaffold supports they are using on the boats. Simple and effective.

    173 Best Homemade Tools eBook

  2. #1612
    Unkle Fuzzy's Avatar
    Join Date
    Mar 2017
    Location
    Near Monkeytown, USA
    Posts
    84
    Thanks
    0
    Thanked 51 Times in 28 Posts
    Quote Originally Posted by Drew1966 View Post
    Iím wondering what the planetary gears are for in this application? Itís not a differential as itís a single drive.
    In this case I would say it's the counter rotating of 2 screws. The spur gears reverse the rotation.

  3. #1613
    Supporting Member hemmjo's Avatar
    Join Date
    Feb 2017
    Posts
    703
    Thanks
    22
    Thanked 394 Times in 237 Posts

    hemmjo's Tools
    I am thinking the small bevel gear nearest to us ma just be an idler. The stubby shaft has no means to transmit power into or out of the system.

    If you look close on the side opposite, you can see another bevel gear that could be the input.

    You can also see part of a large gear peeking up out of the case. If this gear box is for a ship, that is very likely on the prop shaft.

    It is difficult to see, but it is possible there is a shift collar between the two large bevel gears. If there is it could give forward, neutral, reverse.

    Trying to think what the straight cut gear on the right end of the shaft could be used for.

    Just some speculation...

  4. #1614
    Supporting Member IntheGroove's Avatar
    Join Date
    May 2019
    Location
    Lake Tahoe
    Posts
    718
    Thanks
    63
    Thanked 317 Times in 187 Posts

    IntheGroove's Tools
    Just a reverse gear with reduction. Input is on the right. The first narrow gear runs a oil pump. The two large bevel gears are not fixed to the shaft. The shift mechanism is in the center. In neutral only the input shaft and pump are turning. In forward the power goes straight through. For reverse the two bevel gears are energized hydraulically. The gear reduction is on the left.

  5. The Following User Says Thank You to IntheGroove For This Useful Post:

    baja (05-20-2020)

  6. #1615
    Supporting Member hemmjo's Avatar
    Join Date
    Feb 2017
    Posts
    703
    Thanks
    22
    Thanked 394 Times in 237 Posts

    hemmjo's Tools
    That makes perfect sense Groove!

  7. #1616
    Jon
    Jon is offline Jon has agreed the Seller's Terms of Service
    Administrator
    Supporting Member
    Jon's Avatar
    Join Date
    Jan 2012
    Location
    Colorado, USA
    Posts
    20,055
    Thanks
    5,986
    Thanked 27,534 Times in 7,582 Posts
    Imperial Airways aircraft refueling at Semakh, British Mandate Palestine October 1931.
    Fullsize image: https://s3-us-west-1.amazonaws.com/h...w_fullsize.jpg


  8. The Following 4 Users Say Thank You to Jon For This Useful Post:

    baja (05-21-2020), Rangi (05-21-2020), Seedtick (05-20-2020), volodar (06-01-2020)

  9. #1617
    Supporting Member Ralphxyz's Avatar
    Join Date
    Dec 2016
    Posts
    1,068
    Thanks
    53
    Thanked 204 Times in 165 Posts

    Ralphxyz's Tools
    What is the airplane?

  10. #1618
    Supporting Member IntheGroove's Avatar
    Join Date
    May 2019
    Location
    Lake Tahoe
    Posts
    718
    Thanks
    63
    Thanked 317 Times in 187 Posts

    IntheGroove's Tools
    Handley Page H.P.42...

  11. The Following 2 Users Say Thank You to IntheGroove For This Useful Post:

    baja (05-21-2020), Jon (05-20-2020)

  12. #1619
    Supporting Member Ralphxyz's Avatar
    Join Date
    Dec 2016
    Posts
    1,068
    Thanks
    53
    Thanked 204 Times in 165 Posts

    Ralphxyz's Tools
    Thanks!

    Ralph

  13. The Following User Says Thank You to Ralphxyz For This Useful Post:

    IntheGroove (05-20-2020)

  14. #1620
    Jon
    Jon is offline Jon has agreed the Seller's Terms of Service
    Administrator
    Supporting Member
    Jon's Avatar
    Join Date
    Jan 2012
    Location
    Colorado, USA
    Posts
    20,055
    Thanks
    5,986
    Thanked 27,534 Times in 7,582 Posts
    Engineers testing an RL-10 engine for a Centaur rocket at the NASA Lewis Research Center Propulsion Systems Laboratory, Cleveland, Ohio, 1960.
    Fullsize image: https://s3-us-west-1.amazonaws.com/h...e_fullsize.jpg


Thread Information

Users Browsing this Thread

There are currently 4 users browsing this thread. (0 members and 4 guests)

Bookmarks

Posting Permissions

  • You may not post new threads
  • You may not post replies
  • You may not post attachments
  • You may not edit your posts
  •