54 



Albert Ott, Kempten. 



No. 2777. 



Albert Ott, Kempten, Bavaria. 



Mathematical and Mechanical Instrument Works. 



Established in 1873. 



Awards: Melbourne 1880; Madrid 1883; Graz 1890; Brunswick 

 Nuremberg 1882; Augsburgh 1886. 



The whole of the * exhibits have originated in these works. 



1881; 



1 . 1 Pantograph (Fig. 1) with limbs 84 cm long of nickel-plated brass- 

 tubing, adapted for reductions and enlargements of all ratios from 1 : 20 

 to 1:1. With lead pencil, puncturing pins and glass-marker with lens. 

 Shown in the illustration with pole in the center; ratio 1:1. Set up 

 with pole at end; ratio 1 : 2 or 2 : 1. 



Fig. 1. 



(In the German University Exhibition a similar pantograph will 

 be found which has been set up with its pole in the center; ratio 1 : 1) 



Of these pantographs, which excel in exactness and handiness, 

 over 600 have been supplied to all parts of the world. 



