Hello Pete
They look good thank you for finding them, how much do you want for them? Sorry I don't know how to send a private message.
Hello Pete
Fantastic site, thanks!They will be Imperial Conduit Thread considering the age and origin of the drill.
Thread Data Charts-ELECTRICAL THREAD -- BRITISH ET (Conduit to BS 31)
www.ring-plug-thread-gages.com
No not NPT as 3/4 NPT o/d is 1.050 inches, a long way off the OPs measurement of 19 mm.
I've always known those as Henley glands, I did see one being used as a makeshift SWA gland
That's horrible -I've always known them a Henley glands too Haven't seen Henley flex for a whileI've always known those as Henley glands, I did see one being used as a makeshift SWA gland
View attachment 351394
I do believe these were clamping some kind of metal spiral flexible conduit about 1/2" diameter.
aka Henley FlexThey were used for cable with a spiral wrapped metal sheath for mechanical protection
That's a good thing, the VFD shouldn't have any controls between it and the motor.Sorry, I'm a bit late to this discussion...
Out of interest, what machine-number (serial-number) is yours? I'm also restoring a 3-phase Universal, m/n 49329, and the glands are definitely M20 - see photos attached.
Are you planning to keep yours 3-phase? I've re-jumpered the motor on mine to run from a 240V VFD, but the contactor (relay) that sits inside the drill body behind the red and green buttons requires 440V to keep it closed, and a 240V replacement for it is expensive, so I'm planning to blank off the holes where the buttons were and just use the controls on the VFD. The buttons + contactor assembly will be surplus to requirements, so if anyone has a use for it...