Antique Chain Vise Restoration | Unknown Patent With No Apparent Functionality

The chain vise is commonly used to hold pipes or irregularly shaped objects. Main advantage over a regular pipe vise is the large clamping surface limited only by the length of the chain.
This particular chain vise is patented and features a cross slide with no apparent functionality.
What was this used for? As of now none know. I’ve research the patent number without success…

Methods I used to remove rust are the following:
- Electrolysis for large parts. Water + sodium carbonate and 12v battery charger with negative side connected to parts.
- Ultrasonic cleaner for small parts. First with solvent to degrease and then with rust removal fluid 20min each.
- Plain rust removal fluid for the chain leaving it overnight.
Everything was then cleaned from the patina with light passes on a steel wire brush mounted on the bench grinder.

0:00 Disassembly
2:09 Big parts rust removal
3:09 Small parts rust removal
4:04 Chain rust removal
4:33 Assembly
7:00 Test
7:34 What was this used for?

Find some stuff I use for my projects in this amazon storefront:
https://www.amazon.com/shop/blackbeardprojects
It’s affiliate marketing, so if you order something from here you’ll help the channel for free! Thank you!

Thanks a lot for watching, I hope you liked the video!
Suggestions and comments are welcome.
Leave a like and share to anyone who might be interested!

★Patreon★
https://www.patreon.com/blackbeardprojects

★Website★
http://blackbeardproject.com/

★Follow me★
Facebook ► https://www.facebook.com/BlackBeardProjects/
Instagram ► https://www.instagram.com/black_beard_projects/
TikTok ► https://vm.tiktok.com/ZMRnVJQvk/
Twitter ► https://twitter.com/BlackBeardProje