1851 Great Exhibition: Official Catalogue: Class V.: John Gladstone Junior and Co
488. GLADSTONE, JOHN, jun., and CO., Liverpool — Manufacturers.
Railway screw jack of simple construction, easily carried about by one man, and capable of lifting heavy weights. A jack is necessary in case of accident, such as collisions, carriages running off the rails, or in the event of either wheels or axles giving way, and as an aid in the removal of obstructions.