Here is a list of all the postings roy entwistle has made in our forums. Click on a thread name to jump to the thread.
|Thread: 5BA / M3 - Interchangability|
Hex head grub screws ??? Don't you mean socket head ?
|Thread: Cutter Advice for silver steel Micro machining|
These have been made by watchmakers using hand held gravers for more years than I care to think about. Many driven by a bow.
Fairly easy with graver by hand
|Thread: Moore and Wright Micrometer|
is it not the same as 0-1 ?
|Thread: Tools of unknown types.|
Do the collets belong to what appears to be a milling chuck ? Are they metric or imperil or a mixture
|Thread: MINNIE TRACTION - Steam link between Cylinder Block and Boiler|
Malcolm My 1971 copy is the same as Brian G's just mentions a cluster. I've just had a quick look at the drawings,doesn't appear to be anything on there either
|Thread: Fly Tying Vice|
Are barbed hooks allowed for salmon ?
|Thread: Thread gauge|
Edited By roy entwistle on 27/10/2019 20:45:12
I have just cleaned up a thread gauge that I unearthed in my shed. It is marked Starrett No 7 there are 26 blades the finest marked 60-021, the coursest marked 4-320. there are 60 teeth on the finest and 4 on the course one.
Question what is it for ?
|Thread: portable LED floodlight , power source ?|
What is the voltage of the rechargeable battery ? Or what is the rechargeable battery ?
|Thread: Brass sheet|
I was just making sure that the OP new what he was asking for
Clock makers usually use engraving brass, not suitable if you have to bend it
If you you need to bend it, engraving brass is not suitable, it will crack
|Thread: An interesting repair to an Hour Wheel|
I have seen a straight piece of brass shaped like a tooth soldered to the side of a wheel on a thirty hour long case
|Thread: What is this called?|
I believe the good book says " Ask and ye shall receive "
|Thread: Creating Heat for Hardening|
If you case hardened them I doubt that you could sharpen them after
Roy ( I could be wrong )
|Thread: Oiling an old clock|
Clock oil to lubricate. Really should be dismantled to be cleaned properly. Could try washing the pivots with lighter fuel applied with a small paint brush ( But not really recommended )
|Thread: Metal expansion|
It is a straight rod and contracts in warm weather and expands in winter ie the clock gains in summer and loses in winter . The pendulum bob is mild steel and is supported dead centre. As I said before I was told that it should have had heat treatment before I used it, and I believe that this would have been two days in a butchers fridge then left at room temperature for two days then repeated. This was from an RHS member who contacted me after I contacted them for advice
my pendulum rod doesn't, see post above
I have an invar pendulum rod that expands with cold and contracts with warming up
ps I have been told that it should have been heat treated before I used it
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