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  1. Replies
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    279498 Here's Frederick J. Rowan's...

    279498

    Here's Frederick J. Rowan's magnetically-fixed portable electric drilling machine, from The Engineer, 3 June 1887.

    279500 279501 279502

    This is the 1891 Collet & Engelhard drilling...
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    610

    Peter, Thanks for starting this thread. ...

    Peter,

    Thanks for starting this thread.

    279492

    The Deutsches Museum have a good display of early portable electric drills. I just took a quick snapshot, but the machines are described and...
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    260

    Welcome to the forum. AEH = Alfred Eriksen...

    Welcome to the forum.

    AEH = Alfred Eriksen Hamburg.

    See:-

    Eriksen Lathes - Germany

    Matra Erikson Lathes
  4. Replies
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    2,185

    Plannerpower, Thanks for the links. Only when...

    Plannerpower,

    Thanks for the links. Only when I got near the end of “Packard as an Aero Engine Builder” did I realise that I’d read it some time ago, when I was seeking information on...
  5. Replies
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    2,185

    278634 Graphs for the Merlin from The Power to...

    278634

    Graphs for the Merlin from The Power to Fly by L J K Setright.
  6. Replies
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    2,185

    Cyanidekid - Good questions. 100-octane fuel...

    Cyanidekid - Good questions.

    100-octane fuel from the USA provided the essential foundation for the performance increase. This New York Times article provides some interesting background:-

    Who...
  7. 278525 I have an open thread 0-2" mic which...

    278525

    I have an open thread 0-2" mic which likewise has 50 divisions on the barrel, but it has a crescent frame. Marked Townley & Sons, Birmingham. Whether they made it or just stamped and sold...
  8. Replies
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    2,185

    I’d learned to avoid looking at Merlin threads,...

    I’d learned to avoid looking at Merlin threads, for the sake of my blood pressure. However, I saw some respected members’ names popping up, so I’ll chip in.

    Most of us on this forum know something...
  9. Replies
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    8,421

    2782451. 2782462. 2782473. 2782484. The...

    2782451. 2782462. 2782473. 2782484.

    The Verdant Works in Dundee displays a wide range of machines for processing jute, including some made by firms featured in this thread. Unfortunately the...
  10. Jacquard related?

    Jacquard related?
  11. Replies
    11
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    1,776

    Here's a photo of an OMT (Optical Measuring...

    Here's a photo of an OMT (Optical Measuring Tools) toolmaker's microscope. As Bill says.....

    http://www.newall.org.uk/files/2016/03/Toolmakers-Mic.jpg

    Source:-

    OMT Products – Page 1 | NEWALL...
  12. Replies
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    1,632

    Back to the Whitworth measuring machine: I...

    Back to the Whitworth measuring machine:

    I recalled seeing a non-Whitworth measuring machine at Summerlee Industrial Museum, and on looking at my photos I was surprised to find that it had the...
  13. Replies
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    1,632

    More information on Whitworth's measuring...

    More information on Whitworth's measuring machines here:-

    The Whitworth measuring machine : including descriptions of the surface plates, gauges, and other measuring instruments, made by Sir...
  14. Replies
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    1,632

    Bill, It might be pre-loaded by a spring....

    Bill,

    It might be pre-loaded by a spring. There's more to it than meets the eye. There appear to be two 'plungers' in the barrel, and an adjusting screw in the bronze yoke, perhaps to adjust any...
  15. Replies
    18
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    1,632

    Bill, See Shelley's book here:- Workshop...

    Bill,

    See Shelley's book here:-

    Workshop appliances including descriptions of the gauging and measuring instruments, the hand cutting-tools, lathes, drilling, planing, and other machine-tools...
  16. Replies
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    1,305

    265441 9 #9 Shows the marine-type thrust block...

    265441 9

    #9 Shows the marine-type thrust block on the Kronstadt leadscrew. I assume that the Trondheim crane originally had a similar arrangement, and that it has been cut off.

    265439 10
    ...
  17. Replies
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    265459 5 265460 6 265462 7 Photo #5 shows the...

    265459 5 265460 6 265462 7

    Photo #5 shows the cast iron trough that houses and secures the leadscrew for the backstay.

    Photo #6: 2-speed drive to the leadscrew.

    #7 Nut attached to the back...
  18. Replies
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    A Rare Survivor - Dockside Sheerlegs

    265404 1 265405 2 265406 3 265407 4

    Large sheerlegs, with riveted iron or steel tubular legs, were prominent features in numerous dockyards from the mid-19thC.

    They were used for lifting heavy...
  19. Clive mentioned the Bristol Tramway Co. in the...

    Clive mentioned the Bristol Tramway Co. in the context of these unusual engines.

    Charles Redrup was a prolific and restless inventor who was fascinated by piston engines of all orientations. He...
  20. Toolrunner, The winch was in a very small...

    Toolrunner,

    The winch was in a very small workshop in a street in Waimate, NZ. I think I have a note of the owner's name if required, but it was back in 2009.
  21. The Smart & Brown winch undoubtedly has an...

    The Smart & Brown winch undoubtedly has an eccentric bearing on the large friction gear. It also has a brake, as suggested by Grigg. Pulling the lever would raise this large wheel into engagement...
  22. Replies
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    I can’t help with Dave’s specific queries, but...

    I can’t help with Dave’s specific queries, but hats off to Joe for spotting the evidence of a surface condenser in the old drawings.

    The case for surface condensers in seagoing ships was...
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    Well done, Mac, for linking it to Ley’s Malleable...

    Well done, Mac, for linking it to Ley’s Malleable Castings Co. I’ve now found the photo in a Guardian webpage showing various photos taken at Ley’s:-

    Leys Malleable Castings Company - in pictures...
  24. Replies
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    Amazing how they got such a long coil from a...

    Amazing how they got such a long coil from a short workpiece!

    The 'boring' fact is that the photo would merely have been the basis for a spray artist's rendering of a picture for a catalogue,...
  25. Yes, old factories demand to be found and...

    Yes, old factories demand to be found and investigated. In the heart of Seville last year I spotted a factory chimney, and found it belonged to an old building. I stuck my camera through a hole in a...
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