Thread: when did it change

ive just noticed my lathes (1955 model c) top slide retainer screws are on the far side of the cross slide hole and some are on the near side (see pipeclays pics in his gear cutting display) when did it change.
obviously much easy to operate from the near side

Not sure mine is around 67,it does make it a lot user friendly to have the Compound Locks on the outside.

Originally Posted by pipeclay

Not sure mine is around 67,it does make it a lot user friendly to have the Compound Locks on the outside.

It depends. What if you have the compound set over at an angle - say for threadcutting. Then it obscures the right hand screw.

Jordan

a good point i hadnt thought of

Hi all, this is the reason I am asking for serial Numbers so as to try and date when Hercus did their little Modifications

At present I have found all roller bearing headstock lathes had the compound bolts at the front of the crosslide ,but this does not mean they did not start earlier

Over the 71 years since 1939 Hercus did quite a few changes but until I can get as many owners to Register I will start compiling a list and approx date of the modifications that hercus did on the 9"

I am hoping to start compiling when I have at least 200 lathes on the register as this way I can then email people using THEIR date to find out what has changed during the years and then use the Serial Number to get a even more accurate date

So anybody not on the Register please email me

all the best Derek aka bitza500

[email protected]

Originally Posted by nadroj

It depends. What if you have the compound set over at an angle - say for threadcutting. Then it obscures the right hand screw.

Jordan

I find that it makes no difference to the ease of using the lock screws if I can see them or not.
Not sure what point you are making.
If anything if you offset the Compound for screw cutting the Compound would protect the Lock Screw from getting swarf on it.

Hi all in one of the many stories i have read Fred Hercus called the crosslide with the bolts at the back as the backward crosslide ??? but it took 40+ years before they changed the bolts to the front
As for why if the bolts are at the front you have less chance of slipping with your spanner and getting cut by a cutting tool
As I have both setups I can only see the problem undong the bolt closest to the chuck as it is near the cutting tool and could be a knuckle scraper

Having the front mounted bolts if the compound is turned it makes it hard to lock up one of the bolts

But once again another Modification that appears but in what year did they change ??
all the best Derek aka bitza500

At present I have found all roller bearing headstock lathes had the compound bolts at the front of the crosslide ,but this does not mean they did not start earlier

Mine are at the back.