112 



TRANSACTIONS OF THE 



Ladd, Wehste?- <f Co. '5 Sewing Machines. 

 Ladd, Webster & Co., 500 Broadway, ^ew York. 





^> 



The engravings represent one of these machines. Fig. 1 in a perspective view 

 from above. Fig. 2 is a view of the working parts iinrler l':e lable. 



In fig. 1, R is the base plate, which rests on the tabic, ard which carries the 

 hollow fixed arm to and within which the working parts are attached. These 

 consist of the needle-bar I, in which the needle is secured by the thumb-screw L. 

 The needle-bar at its upper end carries the "controller" B, which governs the 

 motion of the ".slack-thread wire," D, taking it by the lifting motion into the 

 grasp of the "finger-spring," C, which holds it, and keeps up the slack of the 

 thread, until the stitch is properly formed, when the controller again presses the 

 wire out of the grasp of the finger-spring, as the needle descends for a new stitch. 

 The tension of the thread is regulated by passing it through the " loop-staple " M, 



