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REAMER DOES NOT KEEP BOBBINS UNIFORM


Experience proves that eternal vigilance and frequent


use of the reamer does not keep the bobbins uniform. and


consequently there are few mills with old- style bobbins


whose frames do not show considerable variation in the


setting of the bobbins on the spindles- with consequent


reduction of the quantity of yarn on all bobbins or the


danger of smashes from butts covered with yarn.


After several reamings another trouble develops. As


the wood is cut away on the inside, the pressure of the


rings forces the wood in and the butt is reduced in size.


This means smaller rings, and in time loose rings.


Loose and smaller rings cause smashes and other


troubles because of bobbins held improperly in the shuttle;


and unfavorably affect the transfer mechanism of the


battery. A transferrer set to drive bobbins with full- sized


rings into the shuttle spring will sometimes drive a bobbin


with smaller rings clear through. The two sizes in a loom


battery are bound to reduce both production and quality.


Another trouble of the old- fashioned bobbin is the split


butt. A bobbin with a split butt invariably rises on the


spindle. runs at less speed than the others and is f1IIed with


slack yarn.


e-===- I &


TROUBLES OVERCOME


All of these troubles are overcome with the brass­bushed


bobbin.


Held firmly between the bushing and the outside rings,


the butt of the bobbin cannot close in. Except for such


slight variations as come in the top of the bobbin, there is


no occasion for reaming, all of the bobbins set at the same


height on the spindles of the spinning frame and are fIlled


with yarn to the full length of the traverse.


For top troubles we have a top bushing. Some mills


find this a decided advantage; some do not need it. With


bushings in both bottom and top of the bobbin, all


necessity of reaming disappears.


Enamelled bobbins need brass bushings even more


than the common kinds. Practically all moisture has been


taken out of the wood by baking. When the enamel wears


or cracks. this super- dry wood sops up the moisture and


the wood swells and closes in. Reaming opens up the


pores, and the bobbin is quickly destroyed unless it is


given a new coat of enamel after the reaming. On all


orders for enamelled bobbins we recommend the use of the


brass bushing.


To summarize:


The brass bushing adds greatly to the life of the bobbin.


Experience shows that this longer life of the bobbin


alone shows a profit on the extra cost of the bushing.


It eliminates many spinning room troubles.


It insures more yarn on the bobbin- increased spinning


room production at less expense for doffing.


More yarn on the bobbin reduces the number of


bobbins that must be placed in the loom battery in the


course of a year.


Where feelers call for bunches of yarn on the bobbin,


it keeps the bunches in a uniform position- a great saving


in waste.


All feelers require that the yarn on the bobbins shall


start at very nearly the same place. It will, therefore,


improve the functioning of all feelers.

Cotton Chats 1923, No. 241, Page 6-7