AMERICAN INSTITUTE. 33 



REPORT OF THE SPECIAL COMMITTEE TO EXAMINE AND REPORT UPON 

 THE SCALES OF THE VERGENNES SCALE MANUFACTURING COMPANY 

 APPOINTED JAN. 3, 1856. 



At the request of the American Institute, we have examined and 

 made trials at the Crystal Palace of the two scales (one a six ton 

 platform scale, and the other a one hundred ton railroad track 

 scale,) both of which have been patented by Elnathan Sampson, 

 25th July, 1854, and been manulactured by the Vergennes Scale 

 Manufacturing Company, at Vergennes, Vermont, viz.: 



First. — Two trials of Sampson's six-ton platform scale. 



The platform of this scale is twelve feet in length by eight feet in 

 width; the metal weighed by it was placed upon a four wheel truck, 

 the bearing points of which were three feet apart in one direction, 

 and two feet nine inches apart in the other direction. 



Two trials of weight were made by placing tliis loaded truck 

 successively at each of the foiu* corners of the scale, numbered 1, 2, 

 3, and 4, and on the middle thereof, numbered 5, which gave the 

 following results : 



First trial. 



The loaded truck when placed at ^'^"Zal^ZlZ^'.^kt''^^''^^ 



No. 1 weighed 4,953 lbs. 12 oz. —0 lb. oz. 4-10 



No. 2 " 4,953 lbs. 9 oz. —0 lb. 3 oz. 4-10 



No. 3 " 4,954 lbs. oz. =0 lb. 3 oz. 6-10 



No. 4 " 4,954 lbs. 5 oz. =0 lb. 8 oz. 6-10 



No. 5 " 4,953 lbs. 4 oz. —0 lb. 8 oz. 4-10 



[Am. Inst.] 



