Page 1 of 3 123 LastLast
Results 1 to 10 of 27

Thread: origin of the diamond toolholder.

  1. #1
    Join Date
    Jan 2004
    Location
    Independent principality of Sinquefieldia (formerly Missouri)
    Posts
    17,277

    Default origin of the diamond toolholder.

    Picked up a 100+ year old shop book at a sale. One of the illustrations was a diamond toolholder. Very much the same as the modern one that is advertised (or used to be, seems to be gone now). Showed a square cutter held at an angle to form a diamond face, ground flat.

    Angle was such as to allow the cutter to be a 60 deg threading cutter.

    I had thought these were relatively new...... But there it was in a 100 year old book, represented as already a well-known item.

  2. #2
    Join Date
    Mar 2001
    Location
    Nottingham, England
    Posts
    15,248

    Default

    Yes the tangential tool holder.
    I believe there is some guy in Oz with a web page selling these for silly money as a new invention.

    If you do a search in Model Engineer it crops up at various points in the history of the magazine.

    Here's a link to the index for the last 108 years.

    http://www.colinusher.info/Indexes/meindex.html

    .
    .

    Sir John , Earl of Bligeport & Sudspumpwater. MBE [ Motor Bike Engineer ] Nottingham England.




  3. #3
    Join Date
    Jul 2001
    Location
    Green Bay, WI
    Posts
    2,599

    Default

    It was also advertised in a 1893 issue of
    American Machinist
    makes it at least 114 years old.
    Some ideas never die !

    Rich

  4. #4
    Join Date
    Aug 2002
    Location
    Albuquerque
    Posts
    2,193

    Default

    I did some playing around with the idea / design and posted some of the
    results at http://home.earthlink.net/~lhartswick if anyone is intrested.
    ...lew...

  5. #5
    Join Date
    Jun 2002
    Location
    Grand Blanc Michigan
    Posts
    3,665

    Default

    I saw someone selling them at NAMES. Bay-Com, I think.
    Weston Bye - Author, The Mechatronist column, Digital Machinist magazine
    ~Practitioner of the Electromechanical Arts~

  6. #6
    Join Date
    Nov 2004
    Location
    Kingsport, TN
    Posts
    1,149

    Default

    Bay Com does sell them and they had some of them at the NAMES show. I ordered one about a 2 years ago and I like it a lot. It cuts very well and is very easy to sharpen and hone. You can rough or do finish work with it also.
    Jonathan P.

  7. #7
    Join Date
    Aug 2005
    Location
    shreveport La
    Posts
    2,680

    Smile

    Had one for a few years they work good . And with a piece of 1/4 square carbide they are even better.

  8. #8
    Join Date
    Jun 2003
    Location
    Cairns, Australia
    Posts
    307

  9. #9
    Join Date
    Mar 2001
    Location
    Nottingham, England
    Posts
    15,248

    Default

    Quote Originally Posted by franco
    "This is a unique patented versatile tool designed to work with small to medium lathes for the professional. home hobbyist and model engineers."

    ?? How can you get a patent on past art? Bull**** or what ?

    .
    .

    Sir John , Earl of Bligeport & Sudspumpwater. MBE [ Motor Bike Engineer ] Nottingham England.




  10. #10
    Join Date
    Nov 2001
    Location
    Robertson NSW Australia
    Posts
    446

    Default

    I thought the same thing about the patent BS, a couple of years ago I was at our local college doing a baking course ( for our business) learning how to make all sorts of things that make you fat! Well MacDonalds over here stated advertising Kaiser Rolls with one of their products and they had their little TM beside it, for those of you who don't know a Kaiser Roll just has a pattern in it like a swirl and all you do to get the pattern is push a cutter into the dough before you prove it (let it rise before baking).
    I spotted the ad on TV with the TM bit and asked my teacher how do you think they got away with that? He had no idea but I think he made some inquiries through the baking industry and the TM bit disappeared quickly!
    Will

Posting Permissions

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