Something a little different from the day to day ME

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Something a little different from the day to day ME

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Viewing 21 posts - 1 through 21 (of 21 total)
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  • #4083
    MadMike
    Participant
      @madmike
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      #111710
      MadMike
      Participant
        @madmike

        As an occasional visitor and poster I thought that you might find this site of some interest. It certainly brings a new meaning to scale: –

        http://www.shipsnostalgia.co/guides/William_Doxford_and_Sons

        Enjoy.

        #111712
        Bazyle
        Participant
          @bazyle

          missing m

          http://www.shipsnostalgia.com/guides/William_Doxford_and_Sons

          Edited By Bazyle on 11/02/2013 15:01:09

          #111716
          Sandy Morton
          Participant
            @sandymorton10620

            Thanks for the link – very interesting but don't let elfin safety see it!

            #111741
            GaryM
            Participant
              @garym

              Fascinating Mike, now that's what you call heavy engineering.

              Thanks for the link.

              Gary

              #111742
              Thor 🇳🇴
              Participant
                @thor

                Hi Mike,

                thanks for an intersting link. Quite a bit heavier work than I can do on my lathe.

                Thor

                #111755
                Old School
                Participant
                  @oldschool

                  That brings back memories did my apprenticeship on Doxford and Garland & Wolff motor vessels in the early 70s the engine were opposed piston two strokes. I was deck officer and remember the 20 minutes it took to change the engine to diesel from heavy oil so that the engine could be manoeuvred. If you wanted to go astern you had to stop the engine and start it backwards

                  Happy days

                  Olly

                  #111756
                  Jim Cozens
                  Participant
                    @jimcozens
                    Posted by Sandy Morton on 11/02/2013 15:12:33:

                    Thanks for the link – very interesting but don't let elfin safety see it!

                    Too late Sandy!

                    The elfins saw it and shut it down 50 years ago sad

                    Jim

                    #111758
                    Scott
                    Participant
                      @scott

                      Memories indeed! I've only been at sea for 30 years so a bit young for Doxfords but big slow speed engines of that size were what I remember. Smaller ships nowadays and the main engines are about the same size as the generator engines on big ships i.e "little" medium speed diesels – only a couple of decks high really smiley

                      Scott

                      #111761
                      KWIL
                      Participant
                        @kwil

                        Now that is a spherical ball cutting device, makes the one in MEW200 look a little shy.

                        #111766
                        Windy
                        Participant
                          @windy30762

                          Some years ago I went to the Anson museum and they had a single cylinder Doxford in bits.

                          **LINK**

                          The museum is certainly worth a visit for IC engine enthusiasts.

                          Paul

                          #111769
                          Speedy Builder5
                          Participant
                            @speedybuilder5

                            Wonderful collection of photos – BUT hardly any swarf ! Not like my workshop, its all swarf and not much work.

                            #111771
                            Boiler Bri
                            Participant
                              @boilerbri

                              Nice link.

                              Big stuff. But the principles are the same.
                              it
                              reminds me. I still need a steady for my boxford.

                              #111775
                              Brian Warwick
                              Participant
                                @brianwarwick88192

                                Brilliant link

                                Whats the hang up with H&S

                                #111782
                                John Allan Watson Brown
                                Participant
                                  @johnallanwatsonbrown

                                  I spend the first 11 years of my life watching these engines jump up and down. Started as a 6th Engineer Officer. Olly is right the engine reversed after stopping, using air starting valves. 380cst heavy oil fuel was the usual fuel until we arrived at port, where marine diesel was mixed and took over for manouvering. Getting via the panama and suez canal was tedious control work. We used to carry out our own maintenance, so we seen the fine machining work shown in the picture galley first hand. Side piston top end bearings were the worse to open for inspection. In ports around the world, we started at 8AM and removed both pistons from the cylinder, cleaned and check the wear down readings inside the 760mm or 670mm bore and returned it to running condition before 4PM. Ready for shore leave. Now I start these "little" medium speed diesels using a mouse, watching a monitor. We shared the same space with these engines as the controls were beside the engines. We still get to go inside the engineroom to look at the engines but its not the same as staring at the 6 top pistons of a Doxford beating up and down a full speed. Thanks for this link Bazyle. I better get back to work we are close to Aberdeen.

                                  #111800
                                  Andy Freeman 1
                                  Participant
                                    @andyfreeman1

                                    Thanks for the link MadMike, wonderfull photos of engineering days gone by

                                    #111850
                                    Cornish Jack
                                    Participant
                                      @cornishjack

                                      Mind-boggling stuff!

                                      Super photographs and a real sense of atmosphere. As one who was never blessed with contact with 'proper' engineering, am I naive in thinking that the radial arm drill in the 11th photo down is a bit 'overkill' for the drill bit in use?

                                      Rgds

                                      Bill

                                      #111854
                                      Robert Dodds
                                      Participant
                                        @robertdodds43397

                                        Cornish Jack,

                                        I don't think they had invented the Magnetic base / drill spindle idea when that photo was taken and I wouldn't fancy doing it with a B&D pistol drill!wink

                                        Bob D

                                        #111862
                                        MadMike
                                        Participant
                                          @madmike

                                          CJ, Having used just such a machine I can vouch that they are more than capable of drilling very small holes, and equally very large ones with equal ease. We usually sed the radial drill because of component size and the relationship of multiple holes. As you can see in the 11th and 12th photos rthere appear to be 2 very large fabricated structures on the drill. The drilling arm has in this case both a large radial sweep and an extended table to allow it to traverse along the length of such a large structure. Thus it could give accurate repeatability when drilling and tapping.

                                          Robert the magnetic base drill was available in those days, but was mostly used in stuations where a component or structure couldn't be mounted under a fixed machine. or where a horizontal hole needed drilling in an existing piece of structural steel etc.

                                          Much has changed since these photos were taken but they do give a real sense of engineering atmosphere to those who were there, and I believe to those who have never experienced "engineering" on that scale. Don't you just love the pictures of the guys standing on the saddle of their lathe. I remember watching one of my colleagues turning extremely long and large diameter spindles on such machnes. He used to sit in a folding chair on the saddle and travel with the tool post, pouring tea from a thermos. Some cuts used to take several hours for one pass.

                                          Remember there is a clear heirarchy among the workers in these photos, which can be seen from their overalls. Boilers suits mostly machinists. Brown coats possibly a foreman, white coats, inspectors. White coats and a hat….managers.

                                          Those WERE the days. I hope you all enjoy the pictures.

                                          #111912
                                          Sub Mandrel
                                          Participant
                                            @submandrel

                                            Awesome!

                                            Toolbits the size of my forearm! Plasma cutting steel over a foot thick!

                                            The planing machine is incredible -but whats the technical difference between a planer and a shaper? I thought the workpiece moved on planer.

                                            Neil

                                            #112128
                                            RRMBK
                                            Participant
                                              @rrmbk

                                              Wonderful engines. smooth and effective, however they had a nasty occasional habit of bursting the water cooling hose to the top piston and showering the whole engine room with hot water. Especially awkward when you were stood at the control stand 25 ft below the one that went!!

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