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COTTON CHATS


TRADE- MARK REG. U. S. PAT. OFF.


DRAPER


@ RPORATION


HOPEDALE MASS.


No. 243. JUNE, 1923


A LITTLE PIECE OF STEEL


ON EACH WARP THREAD


Did you ever stop to consider the importance of a good


Drop Wire, the little piece of steel hung on each warp


thread in your Northrop loom?


Every warp thread passes through one Drop Wire and


rubs against two other wires, those on either side.


This contact between each warp thread and three Drop


Wires is constant for the entire length of each warp thread


in the loom.


As the warp moves through the loom there is chafing


of the thread- first, because each wire rests upon the


thread drawn through its eye; and second, because the


forward movement of the warp and the vertical vibration


of the wires cause the thread and the wires on either side


to rub against each other.


A Drop Wire is made of ribbon steel fashioned on a


punching machine.


The best punching process known, with machines and


dies kept in the best possible condition, leaves a burred


and jagged edge to the several holes and cuts in the wire.


These burrs are seldom visible to the naked eye. They

Cotton Chats 1923, No. 243, Page 1