167 [ 175 J 



Plate 2d — P'larnE 1 axd 2. . 



Indigo Cradle. — The end of the upright lever is attached to a cross 

 bar, the ends of which play in a bearing fixed on each side of the cradle, 

 and secured by screws. 



From near the ends of the bar, a claw extends to, and embraces, the 

 journals, or arbors, at each end of the middle roller, lying on the bot- 

 tom of the cradle; the ends of the claws are divided for this purpose, 

 and permit the journals to play in them. 



The roller is 12 inches long, and 4| diameter. There are two other 

 rollers, each a little longer, lying loose, and moved by the one fixed to 

 the claw. The whole is of cast iron. 



Mr. Johnson, at the Foundry, Broad-street, Philadelphia, casts 

 these indigo cradles. Twenty pounds of indigo are put in water, in 

 the cradle, over night, and then ground, either by hand or other pow- 

 er, until the indigo is reduced to the state of thick cream, and perfect- 

 ly smooth. 



Plate 2d — Figure 3 and 4. 



A frame filled with split rattans, used by Messrs. Terhoeven, of 

 Philadelphia county, to feed silkworms on. 



The ends of the rattans are put through holes in the frames, and fast- 

 ened by wooden pins, in the manner of rattan chair-bottoms. The rat- 

 tans are crossed by iron wires, and woven in by fine wire, rolled round 

 small pieces of wooden rod. 



Fig. 4. A frame used by Messrs. Terhoeven, in preference to bushes, 

 for the worms to form their cocoons in. It is made of four slips of 

 wood, half an inch thick, and as long as the feeding frames are broad. 

 Their ends are pointed, and pass through two pieces of wood, half an 

 inch thick, four inches high, and three broad. Under the whole 

 length of the frame is a thin strip of board, nailed to the end pieces. 

 When one of these frames is filled with cocoons, it must ho removed, 

 and an empty one put in its place. 



Plate 2d — Figure 5. 



Sholl's iinproved Silk Loom. — A A, the sills. B B, the breast rolls. 

 C, the cut tree. D D, theuprights. E, the burdown. F, thebatton, 

 G, the reeds. H, harness. I, the breast rolls. K, the cheese. L, 

 the gibbet. M, treadles. N, tumblers. 0, short counter meshes. 

 P, long counter meshes. Q, the porry. R R, cane roll posts. S, cane 

 rolls. T, the weight bar and weight. N N, counter weights. W, 

 the breaking rod. X X, cross rods. 



The several advantages of this loom are stated by Mr. Sholl to con- 

 sist in the following particulars: 1st. It is not liable to unsquare, and 

 yet is more easily moved than the old loom. 2d. It admits more light 

 than the common looms to the workman. 3d. As the cane roll posts 

 ore fixed to the floor by screws, the porry may be made of any length. 



