Year: 1886

page_text: I HENRY HARRIS LAKE, of the firm of Haseltine, Lake & Co, Patent Agents,
Southampton Buildings, in the County of Middlesex 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 has for its object to reinforce the flanges of spools and bobbins
made of wood so as to render them smooth and hard without materially increasing
the weight thereof; and it consists in covering the edges or peripheries of said
flanges with "leatheroid" or other material made from paper chemically treated.
It further consists in a spool or bobbin having its flange or flanges reinforced
by an endless band or hoop of "leatheroid as will be described.
"
It further consists in a spool or bobbin made of wood and having in the outer
edge of its flange or flanges a concavity extending circumferentially around the
same, and reinforced by an endless band of "leatheroid" shrunk thereon as will be
more fully described.
The term "leatheroid" as used in this application refers to a special form of
material made from chemically treated paper such for instance as is described
in the specification of United States Patent granted to T. and T. S. Hanna
December 18th 1877 N° 19,8382.
In the accompanying drawing
Figure 1 is an elevation of a spool embodying my invention.
Figure 2 is an end view of the same.
Figure 3 is a central longitudinal section thereof.
Figures 4 and 5 represent details of construction to be hereinafter referred to.
Figures 6 and 7 are respectively an elevation and a central longitudinal section
of a quill or pirn bobbin having my invention applied thereto, and
Figures 8 and 9 are similar views of a cop bobbin with my invention applied
thereto.
In carrying out my invention I first turn the spool A or bobbin B or C to the
desired shape, except that the flange or flanges a, as the case may be, are made

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somewhat smaller in diameter than they are to be when finished, and have turned
in their peripheries shallow circumferential cavities b, as clearly shown in Figure 4.
A ring or endles hoop of "leatheroid c is then cut from a tube of said material,
having an interior diameter slightly less than the smallest diameter of said flange,
which ring is immersed in water to swell it, and is then slipped upon the flange a
as shown in figure 4 and allowed to dry, so that it shrinks into said concavity and
into firm contact with the wood, as shown in Figure 5. The spool or bobbin is
afterwards placed in a lathe and the reinforcing ring is turned to the desired
shape, whether oval as in Figures 1 and 2 and the upper end of Figures 6 and 7,
or cylindrical as in Figures 8 and 9 and the lower end of Figures 6 and 7.
I am aware that the flanges of spools and bobbins have been reinforced with
raw-hide, but this has been done by wrapping a ribbon or band of raw-hide one
or more times around the flange, and securing it thereon by glue or other adhesive
material. This method has been found objectionable, or rather, not entirely
satisfactory, for the reason that the glue is liable to lose its holding qualities after
a time, so that the band becomes loose or peels up, at one end, and presents an
obstacle to the unwinding of the yarn. This can never occur with my reinforce,
as it is an endless hoop and requires no glue to hold it in position, though glue
may be used, if desired, as an additional security.
I have described the material used for protecting the flanges of spools and
bobbins as "leatheroid," but it is intended to include in that term all material
which is made from paper chemically treated, so that it may be united in a
compact homogeneous mass by a light pressure without the aid of glue or other
adhesive material, and which becomes hard and tough when dried and capable of
being worked with tools like hard india-rubber. I do not therefore wish to be
limited to one particular form or kind of material made from paper chemically
treated.
Having now particularly described and ascertained the nature of the said
invention and in what manner the same is to be performed as communicated to
me by my foreign Correspondent I declare that what I claim is :-
First. A spool or bobbin having the edge of its flange, or flanges composed of, a
material made from paper chemically treated, and compacted into a homogeneous
mass, substantially as described.
Second. A spool or bobbin having the periphery of its flange or head protected
by an endless band of "leatheroid" or other material made of paper chemically
treated and compacted into a homogeneous mass, substantially as described.
Third. A spool or bobbin having in the outer edge of its flange or head a
concavity extending circumferentially around the same and reinforced by an
endless band of "leatheroid" or other material made from paper chemically treated
and compacted into a homogeneous mass and shrunk thereon, substantially as
described.
HASELTINE, LAKE & Co.,
Agents for the Applicant.