470 SEC. 12. APPLIED MECHANICS. 



2010. Gyrograph. Prof, von Gizycki, Aix-la-Chapclle. 



This instrument serves in investigating the degree of inequality in the 

 velocity of rotation of machine-shafts. The vertical deflections of the pencil 

 from its lowest position are proportional to the increase of angular velocity of 

 the shaft under examination. The instrument is driven by the latter by means 

 of disc and cord. 



VIII. THE APPLICATION OF THE PRINCIPLES OF 

 MECHANICS TO MACHINERY AS EMPLOYED IN 

 THE ARTS. 



2019b. Drawing of a connecting motion as applied to double 

 screw boats. M. Chas. Bourdon, Paris. 



2019c. Model of Connecting Motion, joiningfthe apparatus 

 recommended in the Mulhouse manufactories. 



M. Engel Dolfus, Paris. 



This model belongs to the " Conservatoire des Arts et Metiers." Each 

 apparatus of which it is composed has a special direction for its erection. 



2021. Machine for Winding Cotton into Balis. Invented 

 by Sir Marc Isambard Brunei in 1802. 



H.M. Commissioners of Patents. 



By the invention of this machine the use of cotton for sewing became 

 universal, as before its invention linen thread or occasionally cotton, always 

 in skeins, had been used. 



2022. Model of Machine for Carving Wood and other 

 Materials. Patented by Thomas Brown Jordan, A.D. 1845, 

 February 17th, No. 10,523. H.M. Commissioners of Patents. 



2O25. The first Machine constructed for Printing and 

 Numbering Railway Tickets. Invented and patented by 

 Thomas Edmondson. H.M. Commissioners of Patents. 



2031. Model of Vauloue's Pile-driving Machine, made 

 by Jas. Ferguson, Esq., F.R.S. (the astronomer). 



Bennet Woodcraft, F.R.S. 



Vauloue's engine was used for driving the piles of old Westminster Bridge 

 in 1739 and following years. 



2113. Working Model of a steam pile-driving engine for 

 submarine foundations, and other work. Sissons and White's 

 patent. Sissons and White, Hull. South Kensington Museum. 



This model, on about ^-inch scale, is a complete working model of a steam 

 pile-driver. The winch to raise the monkey by an endless chain is driven by 

 frictional gearing by the engine, which represents a high-pressure inverted- 

 cylinder direct-acting engine, having slide valve, eccentric, flywheel, and force 

 pump for feeding the boiler with water. The boiler represents an upright 

 tubular boiler for working at high pressure. 



