Qualter and Hall's Patent 1884 Packing for a 4" dia. piston
- Made:
- Barnsley
Qualter and Hall's Patent 1884 Packing for a 4" dia. piston, with piece of cylinder and 1 Gunmetal spanner. Engraved "Needham, Qualter, Hall & Co. - Makers, Railway Foundry, Barnsley"
This piston packing, patented in 1884 by Messrs. J. Qualter and E. Hall, has two piston rings coned on the inside and fitted with a correspondingly coned split ring. This is acted on by three leaf springs each forced out radially by a wedge behind it. Each wedge is set up by a locked set screw in the junk ring or cover which is held on by three screws. The example shown is for a cylinder 4 in. diam.
