Lenses with a T-Mount or T2 Mount (or various names) would have a screw mount rather than the more common bayonet mount. And you screw those lens on a matching T-Mount camera.
However...
You could buy a T2 adaptor, which is more or less like a big oversized wedding ring (expect it's in black not gold). Usually the T2 adaptor needs to be correct for your camera's lens mount.
For example:
If you have a Nikon, then buy a T2 adaptor for F-Mount. If you have Canon, then buy a T2 adaptor for EF mount. etc.,
You screw the T2 adaptor on the T-mount lens.
Then you attach the lens to the camera (ie: T-Mount lens on a Nikon by using the T2 adaptor).
And Mortimerhill is correct, you lose or limit the functionality, mostly automatic aperture and autofocusing. Plus likely to need to give it an extra stop (ie: cut your shutter speed by one stop or open up your f-stop by one.)
By the way: T-Mount is not the same thing as a teleconverter, but if you are familiar with what a teleconverter look like, then image the T-Mount adaptor looking like a much more shorter teleconverter.