Paper Testing Machine, S. XIX

This fine and original article is a machine designed to test and value the papers tensile strength. The machine was made in Austria in the 19th century and has been totally restored. It works perfectly and can still be used to test the tensile strength of different kinds of paper. The machine is composed of a long box made of solid wood and polished brass. At the front of the box we can see a circular face with a hand, designed to indicate the tested materials strength. On top of the machine we can see the pieces that hold the paper in place and at one of the sides rests the crank to operate the mechanism.This machine is quite simple to use. The user must put a paper strip on top of the box and fix its edges with the two presses. Then he or she will turn the crank and the mechanism will separate the two presses, tightening the paper. Meanwhile the hand will be moving and indicating different numbers: when the paper tears it will stop in the pointed number. The machine works impeccably and its great operation contributes to its beauty and original quality.The box is made of solid walnut wood in very good condition. Its nice golden brown color looks as lovely as the first day of use. The machines component parts are made of polished brass and metal, very well preserved and shiny. One of the presses plates bears an engraved serial number: 1195. On the other hand, the face bears a printed inscription that reads: Patent - PAPER TESTING MACHINE 10 J.J. Marshall & Co. London & Dartford Made in Austria. These words tell us that probably the machine was patented in England but this particular model was manufactured in Austria.The rare quality and magnificent condition of this machine turn it into a great piece for the best collection of technical antiques.Measurements: Width: 55 cm/21.6 in. Height: 18 cm/7 in.