IMPROVEMENTS IN SPOOLS OR BOBBINS
Year: 1889

page_text: Date of Application, 4th Feb., 1889
Specification Accepted, 9th Mar., 1889
I, FRANK MERRICK MAROY, Manufacturer, residing at Worcester, in the County
of Worcester, and State of Massachusetts, one of the United States of America, do
hereby declare the nature of my invention, for IMPROVEMENTS IN SPOOLS OR BOBBINS,
and in what manner the same is to be performed, to be particularly described and
ascertained in and by the following statement:—
My invention relates to spools or bobbins, and has for its purpose to produce a
spool or bobbin of improved construction.
Heretofore spools or hobbins have been made of wood, and after being used for
some time, the heads are liable to become detached from the barrel of the spool; they
are also liable to split and crack, and in winding, the thread gets into the cracks
and breaks.
My invention consist in combining with the wooden barrel of a spool or bobbin,
heads made of spring steel, and preferably provided with a flange on their outer
face, and secured to the barrel by means of a plug, in the manner to be hereinafter
fully described.
Referring to the drawing.
Figure 1, represents a spool or bobbin of my improved construction, with one end
shown in section.
Figure 2, is a cross section, taken on line x, x, Figure 1, looking in the direction of
the arrow, same figure, and,
Figure 3, is a detail of the plug, for securing the head to the barrel, detached.
In the accompanying drawing, 1 is the wooden barrel, having a central logitudinal
hole 2 therein; said barrel may also have small holes 3 therein near each end of the
barrel, for the purpose to be hereinafter stated.
The heads 4 are made of spring steel, and are preferably provided with a turned
over curved flange, 4', so as to furnish a smooth finished edge on the heads.
The inner surface of each head 4, is adapted to butt against the ends of the barrel 1,
and a central hole is made in each head, of the same diameter as the hole 2 in the
barrel, through which extends the plug 5; preferably made of wood, with a head to
extend upon the outer surface of each head 4, and by means of which the heads 4
are secured to the barrel 1.

page_text: The plug 5 has a central hole 6 extending through it, and is preferably provided
with grooves 7 extending around its outer surface, where it extends within the barrel,
which grooves are adapted to rotain and hold the glue, or other substance by means of
which the plug 5 is secured to the barrel 1.
If proferred the plug 5 may be made slightly tapering towards its inner end, and
instead of parallel grooves in its surface as shown, the surface may be screw threaded,
or provided with spiral grooves.
The grooves in the plug 5 may be dispensed with and said plug made with a
plane surface.
If desired, one or more pins 8, extending through holos 8 in the barrel 1, into
corresponding holes in the plugs 5, may be employed as additional means for securing
the plugs 5, in the barrel 1.
The spring steel hands 4, as before stated, are held against the ends of the barrel 1,
and secured thereto by means of the plugs 5; in order to provent the heads 4 from
turning, or moving around, on the ends of the barrel 1,1 employ one more pins 9,
extending through a hole in the hoad, nonr the central hole, into the end of the barrel,
and into the head of the plug 5, sea Figure 1.
Instead of using pins 9, as above described, to prevent the head 4 from turning on
the end of the barrel 1, I may make the central hole in the head, through which the
plug 5 passes, in such a way as to leave one or more points or prongs extending out,
which can be bent over, and driven into the end of the barrel, as shown at 10, Figure 1,
to provent the head from turning or moving around thereon.
Having now particularly described and ascertained the nature of my said inven-
tion, and in what manner the same is to be performed, I declare that what I
claim is :-
1. As a new article of manufacture, a spool or bobbin, having a wooden barrel,
and spring steel heads secured thereto and held in position, substantially as set forth.
2. In a spool or bobbin, the combination with a wooden barrel, of spring steel
heads, secured thereto, and held in position thereon, substantially as shown and
described.
3. In a spool or bobbin, the combination with a wooden barrel, of spring steel
hends, and plugs for securing the heads to the barrel, substantially as shown and
described.
4. In a spool or bobbin, the combination with a wooden barrel, and spring steel
heads, of plugs for securing the heads to the barrel, and a pin or pins, or a prong or
prongs for holding the heads in position, substantially as shown and described.
5. In a spool or hobbin, the combination with a wooden barrel having a central
longitudinal hole therein, and spring steel heads, of plugs for securing the heads to
the barrel, said plugs extending into the hole in the barrel, and secured therein by
glue or other adhesive material, and by a pin or pins extending in said plugs and
harrel, substantially as shown and described.
6. In a spool or bobbin, a plug for securing the head to the barrel, provided with
grooves in its exterior surface where it extends into the barrel, for the purpose
stated, substantially as shown and described.
Lu witness whereof, I, the said Frank Merrick Marcy, have hereunto set my hand
and seal, this 16th day of January, A.D. 1889.
In presence of,
JOHN CLARKE DEWEY.
HENRY HOWARD YOUNG.
FRANK MERRICK MARCY.