A Manual of the Hand Lathe

A Manual of the Hand Lathe

Home Forums Manual machine tools A Manual of the Hand Lathe

Viewing 21 posts - 1 through 21 (of 21 total)
  • Author
    Posts
  • #524954
    Michael Gilligan
    Participant
      @michaelgilligan61133
      #14160
      Michael Gilligan
      Participant
        @michaelgilligan61133
        #524957
        Brian Wood
        Participant
          @brianwood45127

          As always Michael, you frequently surprise me with the material you unearth.

          Regards Brian

          Edited By Brian Wood on 05/02/2021 09:48:57

          #524975
          Michael Gilligan
          Participant
            @michaelgilligan61133

            Steam enthusiasts might like the boiler shewn at Fig.36

            MichaelG.

            #524980
            Oldiron
            Participant
              @oldiron

              As a follow up to MichaelG' post. I have a short cut on the desktop to International tool Catalogue

              I spend many an hour in there reading through books and catalogues no longer in print.

              regards

              Edited By Oldiron on 05/02/2021 11:11:50

              #525015
              Nick Clarke 3
              Participant
                @nickclarke3

                While Michael's post is both out of copyright and also a good read (so far) the same can't be said for everything on Archive.org

                Many items are in the public domain in the US but not in the EU or UK due to differences in copyright laws, but in addition many things found there are definitely copyright worldwide.

                The 'Model Engineering, a foundation course' by Wright, Tubal Cain's 'Model Engineer's Handbook' and many of the Workshop Practice books are available for free download.

                While everything I have written, both text and software I have explicitly placed in the public domain (and in most cases being free are worth every penny of the price!) this is not the case for authors trying to make a living from their work.

                I must admit to sneaking the odd peek online, but beyond that my morals, though embarrassingly elastic in so many other ways, draw the line at copyright theft.

                Edited By Nick Clarke 3 on 05/02/2021 13:50:22

                #525017
                Nick Clarke 3
                Participant
                  @nickclarke3
                  Posted by Oldiron on 05/02/2021 11:10:38:

                  As a follow up to MichaelG' post. I have a short cut on the desktop to International tool Catalogue

                  I spend many an hour in there reading through books and catalogues no longer in print.

                  regards

                  Edited By Oldiron on 05/02/2021 11:11:50

                  There is a Reeves catalogue from 1954 in there!

                  #525019
                  Nick Clarke 3
                  Participant
                    @nickclarke3

                    MichaelG – a PM for you

                    Nick

                    #525132
                    David Noble
                    Participant
                      @davidnoble71990

                      I'm still struggling with Fig: 44. I've no idea how that was done! Very clever.

                      David

                      #525143
                      Morty
                      Participant
                        @morty

                        Hi all!

                        Re: Nick Clark 3's observation:-

                        Reeves catalogue:-

                        https://archive.org/details/aj-reeves-and-co-1954-catalogue/page/4/mode/2up

                        Look at the price for a new Myford!!

                        Many thanks for the links! Pete

                        Edited By Morty on 05/02/2021 23:27:29

                        #525195
                        KWIL
                        Participant
                          @kwil

                          The Myford on page 4 is a woodworking lathe. The earliest prices I have are 1956. ML7 £51 17 6 + motor

                          By 1960 the price was £63 12 6 Chucks etc were an extra.

                          #525254
                          peak4
                          Participant
                            @peak4
                            Posted by David Noble on 05/02/2021 21:58:03:

                            I'm still struggling with Fig: 44. I've no idea how that was done! Very clever.

                            David

                            Have a look into Ornamental Turning and be prepared to me amazed at the technology available so long ago
                            http://www.the-sot.com/

                            This is just an example, I'm sure there are many other videos.

                            Bill

                            #525609
                            Morty
                            Participant
                              @morty

                              Hi KWIL,

                              Sorry, the link I posted jumped in at page 4, page 1,2,&3 have adverts for the ML7 AND Super 7.

                              Cheers, Pete

                              #525702
                              Tim Stevens
                              Participant
                                @timstevens64731

                                If I had two of these, would one of them be a second hand lathe?

                                Tim

                                #525730
                                Nigel Graham 2
                                Participant
                                  @nigelgraham2

                                  Really, the more I see or read of what our forefathers did with what to us look much cruder tools than they were, the more I have to respect them.

                                  I believe the screw-cutting lathes referred to, with some form of lead-screw at the back, are called Chasing Lathes. I am not sure if they were change-geared or used a set lead-screw for each pitch.

                                  Holtzappfel also describes in one of his books a device for cutting short lengths of thread, based on something akin to a cross-slide taper-turning attachment.

                                  '

                                  May your threads never be drunken, may your boilers always please your Club Admirer of Pressure-Vessels, your Ornamental Turning always please your lady-friends / other-half…

                                  …. and may you note that whilst using coins as material in 19C America may have been legal, it is not so in the UK.

                                  #525736
                                  Tim Stevens
                                  Participant
                                    @timstevens64731

                                    Chasing lathes: One method of producing threads in the early days of ME was called Chasing. It required a lathe with a long tool rest parallel with the rotating work, like a wood lathe, and a tool with a cutter rather like an insert for a Coventry Die Head Chaser, but fixed in a long wooden handle. Yes, the same word, still in use.

                                    The clever bit was that there were no gears, no fancy drive system to produce the thread mechanically. Clever because the operator was required to move the chaser along the work so that at each revolution the tool moved along – by hand – one pitch exactly, for the full length of the required thread. Not a easy task, but like many of the early manual trades, the 'knack' could be acquired by long practice.

                                    I do not know whether this was the purpose of the 'chasing lathes' described above – perhaps Holtzapfel and his kin made a lathe which required less skill as it was geared?

                                    Other trades were mechanised in the same process – engraving, for example, is still done by hand for top-of-the-range presentations, but by machine for the local football club. Other skills died out, or will very shortly, such as thatching. This used to be a skill for many farm labourers, thatching hay stacks in every farm yard, now limited to up-market houses with Porsches on the drive.

                                    Cheers, Tim

                                    #525741
                                    Nigel Graham 2
                                    Participant
                                      @nigelgraham2

                                      I wonder if you have misjudged Mr. Holtzappfel there.

                                      The latter half of the 19C saw the development of standard pitches, and any adroit machine-tool manufacturer would have been right to design that ability into his lathes. Whilst most of the ornamental-lathe buyers may have been amateurs, the more far-sighted industrial customer wanted the latest advances in modern production techniques.

                                      Also, without digging though the tomes, I don't recall Holtzappfel describing his company's products specifically, but techniques common in metal-working trades at the time. Anyway, he described a cross-slide thread-profiler, still not guaranteed to cut a standard pitch unless used with a multi-point chaser, and then on only very short lengths like the ends of clock movement columns.

                                      Why might thatching die out shortly? It seems to be one those old trades that came close to it but found new leases of life, albeit serving the Canary Wharf second-home set rather than local farm-workers.

                                      #525750
                                      Tim Stevens
                                      Participant
                                        @timstevens64731

                                        The problem I identify with trades that move up market, is complex. Thatching is currently a trendy sort of roof covering, and such things tend to be subject to fashion. They can, in other words, become 'old hat' just as brown furniture has in the past few years. This discourages new blood. At the same time, the money people feel able to spend on renewing their not-so-posh roof is much less, which discourages farmers from growing the special straw which is needed for a really first class job. And sooner or later, the apparent benefits of an engineered surface, without all the snags with birds, damp, etc, and a government grant to 'help save the planet' mean the old roof is replaced completely. Need I go on?

                                        Not all trades are affected in the same way, or to the same extent. Thatching is still only part way through the process, as is blacksmithing (ie without using gas or electric welding). Proper driving, of car or motor bicycle, is next.

                                        But perhaps not. Just think, though, what must change to stop this all happening?

                                        Cheers, Tim

                                        #525755
                                        Georgineer
                                        Participant
                                          @georgineer

                                          Thanks for putting this up, Michael. It adds nicely to my recent thread about turning by hand, especially the section on thread cutting.

                                          George B.

                                          #525793
                                          Robert Dodds
                                          Participant
                                            @robertdodds43397

                                            Michael,

                                            A very interesting book to browse in . Thank you for bringing it to the forum.

                                            Tim,
                                            On the question of thread chasing, I was employed in the early sixties by a well known manufacturer of "gentlemen's toilets". Their "brass shop" produced lengths of threaded copper pipe which were assembled to cast brass Tees or Crosses to form the down pipe for said toilet, all being screwed and soldered together before either polishing or chrome plating.
                                            The pipe threading was entirely done with hand chasers usually with a mandrel up the pipe to provide support and all to 26 TPI. Once started the multiple threads on the chaser ensured that the pitch of the thread on pipe was correct
                                            One of my projects of the day was to introduce brass stamped Tees and Crosses with silver soldered joints replacing the screwed and soldered version.

                                            Happy days,
                                            Bob D

                                            #525802
                                            Nigel Graham 2
                                            Participant
                                              @nigelgraham2

                                              Tim –

                                              I see what you mean. I'd not really thought of a thatched roof as a "fashion" item.

                                              Robert –

                                              Now there's a profession to state when a Mastermind competitor – Khasi Designer.

                                              I spent yesterday machine-threading a 26TPI thread on both ends of a steel tube, having reduced the OD to the specified 3/4" dia – the drawing warns in thick black type that the wall is barely 0.02" thick at the thread root. This might have been a little less fraught if the tube supplied was not a length of ordinary galvanised conduit that had somehow to be centred in a 4-jaw chuck and run reliably in a fixed steady…

                                              One end is reasonable but other a bit torn because irregularities caused it to bounce slightly in the steady.

                                              I'd already made the mating knurled fittings, to use as gauges.

                                              I did have a Plan B if I'd failed – the design is such that it would be possible to cut the tube short and insert long plugs to carry the threads.

                                            Viewing 21 posts - 1 through 21 (of 21 total)
                                            • Please log in to reply to this topic. Registering is free and easy using the links on the menu at the top of this page.

                                            Latest Replies

                                            Home Forums Manual machine tools Topics

                                            Viewing 25 topics - 1 through 25 (of 25 total)
                                            Viewing 25 topics - 1 through 25 (of 25 total)

                                            View full reply list.