Vacuum Boiler, Testing the Liquid (Glue)

| View Cart ⇗ | Info

This illustration shows a vacuum boiler in which liquid to become glue is boiled by steam, as well as a man testing the liquid in the manufacturing process.


John H. Finley ed. Nelson's Perpetual Loose-Leaf Encyclopaedia (vol. 5) (New York, NY: Thomas Nelson and Sons, 1917) 464


TIFF (full resolution)

2852×2958, 1.5 MiB

Large GIF

987×1024, 143.1 KiB

Medium GIF

617×640, 71.9 KiB

Small GIF

308×320, 27.2 KiB