Search Results - Practical Machinist - Largest Manufacturing Technology Forum on the Web
Close
Login to Your Account

Search:

Type: Posts; User: L Vanice

Page 1 of 60 1 2 3 4

Search: Search took 0.06 seconds.

  1. Replies
    13
    Views
    560

    My P-38 was made by Walther and was not razor...

    My P-38 was made by Walther and was not razor sharp, but it still looked like new and had the holster and extra mag. I guess some GI got tired of his souvenir. I got it at a flea market in 1967 or...
  2. Lathe chucks may come with two sets of one-piece...

    Lathe chucks may come with two sets of one-piece jaws, the inners and outers, as you call them. But you can buy chucks with one set of two-piece jaws. The master jaws stay in the chuck. The top...
  3. Replies
    2
    Views
    130

    I used a Wilson Tukon hardness tester when I was...

    I used a Wilson Tukon hardness tester when I was in grad school in 1963. It had a microscope to spot the location of each reading and to read the indentation length. There was a micrometer X-Y...
  4. There was an English CVA lathe, perhaps related...

    There was an English CVA lathe, perhaps related in some way to your chuck. They made some very fine lathes and might have had Pratt Burnerd, for instance, produce some high precision chucks and mark...
  5. Replies
    28
    Views
    779

    White lead mixed with oil was the traditional...

    White lead mixed with oil was the traditional lube for carbon steel dead centers. Live centers have eliminated the need.

    The pictures show what Hardinge put in that hole.

    Larry

    272292...
  6. Replies
    28
    Views
    779

    Hardinge abandoned the use of their "Cataract"...

    Hardinge abandoned the use of their "Cataract" tailstock taper around the time the company moved to Elmira, so the 1930s and later tailstocks have Morse tapers.

    Larry
  7. Replies
    28
    Views
    779

    That is an old Chicago drawbar. Your 1940's head...

    That is an old Chicago drawbar. Your 1940's head would have come with a drawbar with a ball thrust bearing and cast iron knob, as in the picture below. Hardinge used the same size knob on the...
  8. Replies
    28
    Views
    779

    Hardinge never used grease cups. The bearings...

    Hardinge never used grease cups. The bearings were either oiled through a threaded fitting or "lubed for life" with grease with no lube fitting.

    Many Hardinge lathes were used for production jobs...
  9. Replies
    28
    Views
    779

    Closer is not an exact term. Clarify what you...

    Closer is not an exact term. Clarify what you want and what you want it to fit. I may have it.

    Larry
  10. Replies
    4
    Views
    268

    This is my L9 that fits the HLV-H and TFB-H...

    This is my L9 that fits the HLV-H and TFB-H lathes. The D14 is identical except for a thinner bottom that fits the smaller swing and bed of the DV59 and HSL lathes.

    272215 272216 272217 272218...
  11. Replies
    28
    Views
    779

    The original literature for the 1940's ball...

    The original literature for the 1940's ball bearing open cone pulley lathe says the standard max speed is 2500 RPM. Jaw chucks have their own max safe speed, but I see that warning, with the number,...
  12. Replies
    28
    Views
    779

    This what? That headstock in post #1, as...

    This what? That headstock in post #1, as mentioned previously, takes 4C collets. So 5C collets with or without a closet will not fit the headstock. You could try to find a 5C headstock or a spare...
  13. Replies
    4
    Views
    268

    I have one for the 7" bed HLV-H or TFB-H, but...

    I have one for the 7" bed HLV-H or TFB-H, but have not used it, so no video. I will sell it, since it is just sitting on a shelf. I did use the smaller 3.5" bed version on my HSL once years ago to...
  14. Replies
    1
    Views
    180

    That is an incomplete Hardinge model 1946 slide...

    That is an incomplete Hardinge model 1946 slide rest. I have rebuilt that model and can use the parts, if they are good, for some I have not worked on yet. It was made from 1946 to 1960, when they...
  15. Replies
    7
    Views
    438

    Many makers, both USA and not, use the American...

    Many makers, both USA and not, use the American Standard tongue and groove top jaws. Pratt Burnerd, TOS SVITAVY and Bison are examples. That design can usually be confirmed from a picture of the...
  16. Replies
    28
    Views
    779

    First, make a steel pin that goes through the...

    First, make a steel pin that goes through the upper hole in the headstock in front of the left bearing and fits in one of the four larger holes in the pulley. That is how you lock the spindle from...
  17. Replies
    28
    Views
    779

    The 49-16975 means it takes 4C collets and the...

    The 49-16975 means it takes 4C collets and the swing is 9 inches. The headstock, and probably tailstock, were made in 1942 in Elmira, NY. The bed was made in Chicago before 1930, and yes, they fit...
  18. Replies
    7
    Views
    463

    Hardinge makes a very nice quick change tool post...

    Hardinge makes a very nice quick change tool post for their manual lathes. The L20 2-wheel knurling tools for it are the cut type. I find them tricky to adjust.

    271915 271916

    I prefer my...
  19. Replies
    29
    Views
    1,810

    If the pitch is 8 TPI and the OD is a little more...

    If the pitch is 8 TPI and the OD is a little more than 1.5, I would consider taking the spindle out and getting it machined to a true 1.5 inch x 8 TPI, perhaps using a new chuck, adapter plate or...
  20. Replies
    16
    Views
    1,008

    A split point drill was mentioned, but I will add...

    A split point drill was mentioned, but I will add that that type drill is excellent for drilling into a round rod. The parabolic flute feature is fine, but not necessary for starting and continuing...
  21. Stiffness. The numbers I have been carrying...

    Stiffness. The numbers I have been carrying around in my head for decades are Steel-30, cast iron-25 and aluminum-10. Higher is stiffer. These are the easy to remember, non-technical numbers that...
  22. Replies
    22
    Views
    10,541

    Gray and grey are sort of like color and colour,...

    Gray and grey are sort of like color and colour, but the distinction is actually more complex. Both spellings were used in England for many years, but the current usage is that Americans favor gray...
  23. Replies
    29
    Views
    1,810

    Any yardstick will have marks at 1/8 inch...

    Any yardstick will have marks at 1/8 inch intervals, perfectly adequate for determining if the thread is 8 TPI.

    I wondered if the OP has a tiny spindle with M7 x 1.5 threads.

    Larry
  24. Replies
    25
    Views
    1,898

    I was very surprised to see a Duolathe (shipping...

    I was very surprised to see a Duolathe (shipping weight 12 pounds, according to the OEM specs, circa 1949) being sold as surplus from Badger Ordnance Works in Wisconsin. It had been used for...
  25. Replies
    25
    Views
    1,898

    Mill Ser. No. 47-16264 was built at the end of...

    Mill Ser. No. 47-16264 was built at the end of 1941, probably after Pearl Harbor. The 47 means the head is 7" swing and it takes 4C collets.

    Larry

    271465
Results 1 to 25 of 1500
Page 1 of 60 1 2 3 4