80 TRANSACTIONS OF THE 



heretofore constructed, the warves were made to traverse on the 

 spindle, while the cylinder, from which they received their mo- 

 tion, rested on stationary bearings, the angle of the bands, were 

 necessarily changed as the warves moved up and dow^n on the 

 spindle. This caused an inequality in the tension of, and an 

 extra friction on the bands; and from their great velocity, this 

 extra friction and inequality of tension affected their durability, 

 as well as the powder required to operate them. 



It has therefore long been considered a desideratum to over- 

 come this difficulty, particularly on the warp frame. This has 

 now been most effectually accomplished by tliis last improvement 

 of Mr. Danforth, and the cap spinner as thus improved is now 

 believed to be the best tlu-ostle spinning machine in the world. 



" The improvement consists of constructing and arranging the 

 machine, so that the wharves rest on a stationary rail, while the 

 spindle rails, spindles, caps, guards and guide wire boaixls, are 

 made to traverse. This is effected in a very simple manner, 

 by connecting together the spindle rails with cross-bars passing 

 from side to side of the machine. The rails are framed together 

 in two sections, one-half being separated from, and distinct from, 

 the other. On these cross-bars are fixed toothed racks, w^hich 

 geer into pinions on two parallel shafts, which pass through 

 nearly the length of the lower part of the machine, and the racks 

 on one section are arranged so that they geer into the pinions, on 

 their inside, while those on the other section geer into the pin- 

 ions on their outsides. This arrangement causes the spindle 

 rails, &c., to counterbalance each other, and makes the whole 

 warves w^ork very light and free. The two parallel shafts are 

 geered together by a cross shaft near the centre, with bevil wheels, 

 and the cross shaft is worked with a mangle wheel and pinion. 

 The cross bars connecting together and supporting the spindle 

 rails, also support and carry the tin guards and guide wire 

 boards, so that they all traverse together. The whole arrange- 

 ment is at once simple and substantial. This improvement was 

 patented on the 12th of December, 1854, since wliich time, the 

 makers, Messrs. Danforth, Cooke & Co., of Paterson, N. J., have 

 made and sold something over ten thousand spindles on this plan, 

 which are all giving the best of satisfaction. 



[Jl gold medal awarded. 



Xo. 1051.— Bobbin and Fly Frame. 

 Lowell Machine Co., Lowell, Mass. Very much simplified from 

 the EngUsh frame, and well built. [Ji gold medal awarded. 



