408 SEC. 12. AIM'JLIED MECHANICS. 



2078. Model of a Steam-boiler to show Herscliel's boiler 

 arrangement. Bock and Handrick, Dresden. 



2079. Model of Valve Motion, to show the link motion of 

 Stephenson, Gooch, and Allan. Bock and Handrick, Dresden. 



2080. Drawing of a Model for testing the Link Motions 



of Stephenson, Gooch, and Allan, for locomotive manufactories. 

 Greatly improved and quite new construction. 



Bock and Handrick, Dresden. 



2081. Model, for the demonstration of Centroids. 



Bock and Handrick, Dresden. 



2082. Model of a higher pair of Elements. 



Bock and Handrick, Dresden. 



2083. Vierkurbelkette. (Four crank-chains.) 



Bock and Handrick, Dresden. 



2083a. Slider Crank Chain. 



Bock and Handrick, Dresden. 



2083b. Mechanism of Slider Crank Chain. 



Bock and Handrick, Dresden. 



2084. Model of a Hanger. Bock and Handrick, Dresden. 



2085. Model of a Wall Bracket. 



Bock and Handrick, Dresden. 



2086. Model of a Pedestal. Bock and Handrick, Dresden. 



2087. Three Models of connecting Bod-ends. 



Bock and Handrick, Dresden. 



2088. Two Models of rivetted Joints for Boiler 

 Plates, to take to pieces. Bock and Handrick, Dresden. 



2089. Model of a Double-beat Valve. 



Bock and Handrick, Dresden. 



2090. Model of a Throttle Valve. 



Bock and Handrick, Dresden. 



2091. Model of a Cup Valve. 



Bock and Handrick, Dresden. 



2094. Drawing Instruments and Scales. 



Bock and Handrick, Dresden. 



2095. Tachometer with registering apparatus, after Dr. 



Bock and Handrick, Dresden. 



