When you click on links to various merchants on this site and make a purchase, this can result in this site earning a commission. Affiliate programs and affiliations include, but are not limited to, the eBay Partner Network.
That type of collar allows you to put translational force on something while letting it rotate inside. Like a spinning handle on a fishing reel. Either that, or it is gauges. I think the knurling means a grip, though.
I did an image search and got all sorts of hits showing similar UXOs (unexploded ordnance) or shell casings.
I agree that they are some sort of tool though given their varying size and the way they're grouped together. The only other hit I got that was similar was for flint knapping tools:
If they are in fact aluminum they may be for ordinance maintenance/handling. No spark. Back in the early seventies I was a technician in the Navy repairing the Magnetic Anomaly Detection System. The sensor head was about six feet long mounted on a non magnetic gimble which in turn was mounted on a non magnetic frame extending it out from the aircraft. All our tools were bronze or bronze derivative.
Sorry but I couldn't find an actual image of the device but this is the housing that extended from the aircraft skin around the actual sensor. There were motors which drove the gimble on the three axis of aircraft flight to keep the sensor in alignment with true zero at the north pole no matter how the aircraft maneuvered. These motors (of course magnetic) were mounted near the base of the "stinger". All very cool stuff but old, old, old technology. All the amplifiers and electronics were tube driven. There were six boxes each about a foot and a half square weighing between 30 and 55 pounds each. The power supply was about 70 pounds, it had a huge transformer in it.
They are aluminum. I can see some sort of gauge. You can see faint scratches where they have been slid over something. I will throw them on a shelf. Then 50 years from now my kids will wonder what they are and then pitch them.
If they are in fact aluminum they may be for ordinance maintenance/handling. No spark. Back in the early seventies I was a technician in the Navy repairing the Magnetic Anomaly Detection System. The sensor head was about six feet long mounted on a non magnetic gimble which in turn was mounted on a non magnetic frame extending it out from the aircraft. All our tools were bronze or bronze derivative.
Sorry but I couldn't find an actual image of the device but this is the housing that extended from the aircraft skin around the actual sensor. There were motors which drove the gimble on the three axis of aircraft flight to keep the sensor in alignment with true zero at the north pole no matter how the aircraft maneuvered. These motors (of course magnetic) were mounted near the base of the "stinger". All very cool stuff but old, old, old technology. All the amplifiers and electronics were tube driven. There were six boxes each about a foot and a half square weighing between 30 and 55 pounds each. The power supply was about 70 pounds, it had a huge transformer in it.
My father would hate these. He was on submarines in the sixties and did his best to avoid these.
December 14th, 2022, 01:30 PM
