A New or Improved Automatic Tension Wire or Take-up and Brake for Warp Bobbins.
Year: 1899

page_text: Date of Application, 9th May, 1899-Accepted, 24th June, 1899
COMPLETE SPECIFICATION.
A New or Improved Automatic Tension Wire or Take-up and Brake
for Warp Bobbins.
I, THOMAS HENRY SMITH, of Jamestown, New York, United States of America,
Manufacturer, do hereby declare the nature of this invention and in what manner
the same is to be performed, to be particularly described and ascertained in and by
the following statement:-
-
The object of my invention is to make an inexpensive and efficient automatic
tension wire or take-up, and brake for warp bobbins which will regulate the tension
of the yarn or thread, and prevent slack yarn from the bobbins running onto a
warper's mill or creel; and my device consists of a bent wire bridle having a
weight or brake-shoe thereon, hung from the creel standards at each end and in
front of each bobbin, and resting upon the thread or end as it runs off the bobbin ;
as shown in the accompanying drawings, in which,-
Figure 1 is a perspective view of my automatic tension wire and bobbin brake:
Fig. 2 is a side elevation of a section of a warper's creel showing my device in
different positions caused by the running of the threads; Fig. 3 is a front per-
spective view of the upper corner of a warper's creel, the remainder being broken
away, and my device attached to each bobbin.
Similar numerals refer to similar parts in the drawings; 10 represents my ten-
sion wire or bridle, which has eyes 11'11' bent at the ends to receive pins or
nails 11 11 for hinging the bridle to the creel standards 13 13 at each end of the
bobbin 15, which allows the wire 10 to swing loosely as it rests on thread or
running end 16; bobbins 15 15 run on creel pegs in holes 18 18 in standards 13 13:
from one of the eyes 11¹ I bend the wire back in arm 12 and out at about right
angle thereto in brake finger 14 and attach brake-shoe 14 to brake finger 14;
brake-shoe 14 is made of metal or any substance which will give the proper
amount of drag on the bobbin head, and the form of the brake-shoe may be round
or square but I prefer it round and of considerable weight, since the weight
adds to the tension of the bridle on the thread and gives a much greater drag on
the hobbin head. The metal is durable and the round form does not scrape on the
wooden bobbin head; but rides smoothly.
It is of course understood that this evil of slack or lashing threads takes the
time of the warper and spoils the warp; my simple and automatic device prevents
this and runs the threads all on the warp mill at one even tension. If the thread
runs slack, the falling wire follows it and takes up the slack and prevents its
running onto the warp mill or beam, or from lashing into the next end and being
carried thereby onto the mill or beam; and should this slackness be more than
the falling wire will take up, brake-shoe 14' falls on the bobbin head and slows up
the motion of the bobbin until the thread is brought to an even draw again. Im-
perfect winding of the bobbins and other causes vary the speeds of the bobbins
and the positions of wires 10 10 are constantly changing to different angles up
and down as shown in Figs. 2 and 3: It will be noticed that I take the thread
from the upper side of the bobbin instead of from the under side as is often done,

page_text: and that this change simplifies the whole process and my device for regulating the
tension, allowing a direct weight which can also be used as a brake-shoe.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed, I declare that what
I claim is:-
:―
An automatic tension or take-up and bobbin brake for a warper's creel having
a wire bent to form a bridle to ride on the unwinding end of the thread, said
bridle hinged to the creel standards at each end to swing free in front of the
bobbin, said wire bent to form a brake finger, a weight or brake-shoe on said
brake finger of sufficient weight to give the desired tension by bearing on the
thread and breaking on the bobbin head, as shown and described.
Dated this 8th day of May 1899.
W. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Agents for the Applicant.