Improvements in Sheet Metal Bobbins used in Machinery for Preparing Cotton and other Fibrous Substances.
Year: 1897

page_text: Date of Application, 9th Apr.,
1897
Complete Specification Left, 9th Feb., 1898-Accepted, 9th May, 1898
Improvements in Sheet Metal Bobbins used in Machinery for
Preparing Cotton and other Fibrous Substances.
We, GEORGE PALEY, of Bank Top Mills, Preston, in the County of Lancaster,
Cotton Spinner and Manufacturer, and JAMES ANDERTON SUTCLIFFE, of Globe
Works, Blackburn, in the same County, Sheet Metal Engineer, do hereby declare
the nature of this invention to be as follows:-
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This invention relates to the construction of sheet metal bobbins used in
machinery for preparing cotton and other fibrous substances and has for its main
object the strengthening of the body part of such bobbins that is to say to render
them less compressible or less susceptible to injury through knocks or rough usage.
In carrying out our invention we form the body part of the bobbin by inserting
a series of thimbles resembling flat bottomed pans-which may conveniently be
produced by the process known as 'stamping"-one over the other. Each
ihimble near its closed end is slightly reduced in diameter leaving a shoulder
against which the edge of the open end of the adjoining thimble when slipped
or pressed on to the reduced part-rests and the several thimbles at their juncture
with each other are fastened together by soldering. The bottom of each thimble
has punched through it a central hole large enough for the spindle to pass through
thus leaving the interior of the body part of the bobbin with a series of inwardly
projecting flanges resembling and answering the same purpose as the strengthen-
ing rings frequently used in the flues of horizontal steam boilers. The top and
bottom of the bobbin are preferably of wood sheathed with sheet metal fitting
within or on to their adjoining thimbles and being soldered thereto.
Improvements in Sheet Metal Bobbins used in Machinery for
Preparing Cotton and other Fibrous Substances.
We, GEORGE PALEY, of Bank Top Mills, Preston, in the County of Lancaster,
Cotton. Spinner and Manufacturer, and JAMES ANDERTON SUTCLIFFE, of Globe
Works, Blackburn, in the same County, Sheet Metal Engineer, 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:-
-
This invention relates to the construction of sheet metal bobbins used in
machinery for preparing cotton and other fibrous substances and has for its main
object the strengthening of the body part of such bobbins that is to say to render
Price Sd 1

page_text: them less compressible or less susceptible to injury through knocks or rough usage.
In carrying out our invention we form the body part of the bobbin by inserting
a series of thimbles resembling flat bottomed pans-which may conveniently be
produced by the process known as "stamping"-one over the other. Each
thimble near its closed end is slightly reduced in diameter leaving a shoulder
against which the edge of the open end of the adjoining thimble when slipped
or pressed on to the reduced part-rests and the several thimbles at their juncture
with each other are fastened together by soldering. The bottom of each thimble
has punched through it a central hole large enough for the spindle to pass through
thus leaving the interior of the body part of the bobbin with a series of inwardly
projecting flanges resembling and answering the same purpose as the strengthen-
ing rings frequently used in the flues of horizontal steam boilers. The top and
bottom of the bobbin are preferably of wood sheathed with sheet metal fitting
within or on to their adjoining thimbles and being soldered thereto.
In the accompanying drawings,
Fig. 1 is a sectional view of one of the flat bottomed pans or cups having a
central hole a.
Fig. 2 is a cross sectional view of our improved sheet metal bobbin as we now
prefer to make it after practical experiment. Instead of making each thimble or
pan with an inwardly flat projecting flange we prefer to turn the flange inwardly as
shewn at the said Fig. 2 of the drawings.
Fig. 3 is a sectional plan view of the bottom part of the bobbin shewn at Fig. 2.
At Fig.
the flange bis shewn in solid black lines in the form which obtains
when it is originally stamped. e is a central hole punched through subsequently.
In practice we curl over the flange as indicated diagrammatically by broken
lines at Fig. 1 and by solid lines at Fig. 2 and afterwards reduce the diameter
under pressure at the lower end of the thimble or pan so as to leave a shoulder d.
e is the wooden top and f the wooden bottom of the bobbin in each case sheathed
with sheet metal g.
Instead of attaching the several thimbles together by means of soldering we
may fasten them together by the process known to sheet metal workers as "spin-
ning or "closing."
"
The strengthening of the improved bobbin is increased not only by the inner
flanges or rings but by forming the several thimbles by the process of stamping
(which thereby greatly hardens the metal) considerable extra strength as well as
a true cylindrical form is imparted to them.
Instead of employing wood for the bottom of the bobbin sheathed with sheet
metal g we may employ a steel ring has shewn at Figs. 4 and 5.
Having now particularly described and ascertained the nature of the said inven-
tion and in what manner the same is to be performed we declare that what we
claim is:-
The improved construction of sheet metal bobbin consisting essentially of a
number of thimbles or pans fitting into and attached to each other and having
internal strengthening flanges or rings substantially as herein described and
shewn in the drawings.
1000
Dated this 9th day of February 1898.
For the Applicants,
W. LLOYD WISE,
46, Lincoln's Inn Fields, London, W.C., Chartered Patent Agent.