AMERICAN INSTITUTE. 



117 



of the sector, as at A, which sector is hinged to the piston, and the 

 eccentric plates, pressing on pings or bearings, on the press frame, 

 as at B, pull out the punch by the reverse motion of the lever. 

 After thus drawing the punch, the whole works are most beauti- 

 fully carried up to their places by mere slight rods, passing through 

 the pillars of the press, w^ith simple India-rubber balls on top, at 

 C. Both sectors work on good tempered cast steel bolts, which 

 are durable, and fully retain their centres. The press is simple, 

 and will not get out of order; and so powerful, that an ordinary 

 man can easily punch 11-16 hole, or more, through one-quarter 

 inch iron with one finger only, by taking hold of the bare lever. 

 [^ silver medal having been before awarded — Diploma. 



Bottoms' Watch Makers' Lathe. 



Jas. M. Bottom, 169 Broadway, New-York. 



This lathe is adapted to every style of work connected with the 

 manufacture of watch movements, such as making and setting 

 watch jewels, cutting and finishing chronometer, duplex and lever 

 pallets, nurling and glossing wheels, graining plates, glossing hol- 

 lows, facing pinions, turning and pivoting cylinders, balance staffs, 

 pinions, &c., polishing every description of steel and brass work 

 connected with the English or Swiss movements. 



[A gold medal having been before awarded — Diploma, 



