Improvements in Eyelets.
Year: 1895

page_text: Date of Application, 3rd Sept., 1895-Accepted, 11th Jan., 1896
[Communicated from abroad by THEOPHILUS KING, of 28 Equitable
Building, Milk Street, Boston, Massachusetts, United States of America,
Gentleman.]
!
Improvements in Eyelets.
I, WILLIAM ROBERT LAKE, of the Firm of Haseltine Lake & Co., Patent
Agents, 45 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 relates to eyelets the heads or exposed portions of which are.
covered with a material such as pyroxyline, which is molded upon the eyelet
while in a plastic condition and subsequently becomes rigid. The invention has
for its object to provide certain improvements in eyelets of this class, whereby the
molded head may be readily applied to the portion of the eyelet with which it
comes in contact and will be securely engaged with the eyelet so as to form an
annular head of the desired form. The invention consists in the improvements
which I will now proceed to describe and claim.
Of the accompanying drawings; forming a part of this Specification,―
Figure 1 represents a sectional view of the metallic portion of my improved
eyelet before the covering is applied.
Figure 2 represents a sectional view of my improved eyelet and the dies which
form the molded head or covering, the dies being in the position they occupy at
the beginning of the head forming operation.
Figure 3 represents a sectional view of the eyelet and dies after the completion
of the head.
Figure 4 represents a sectional view of the completed eyelet.
Figures 5 and 6 represent a modified form of the eyelet.
In Figures 1, 2, 3 and 4, a represents the body of my improved eyelet, and a¹ the
head or flange thereof, the said body being of cylindrical form and preferably
slightly tapered, as shown, while the head or flange is bevelled and increases in
diameter from its junction with the body to its outer end, so that its inner and
outer surfaces are inclined relatively to the body a, as shown. The marginal or
upper portion of the flange a² is turned upwardly to form an annular cutting lip a³,
the function of which will presently appear.
The flange joins the body of the eyelet at an obtuse angle at which forms a
shoulder at the lower end of the flange, said shoulder bearing on the die-plate c
hereinafter referred to, and causing said plate to firmly support the flange with its
upper edge parallel with the die-plate, the said shoulder also preventing the
eyelet from being wedged or crowded down into the body receiving cavity in said
blate.
represents the molded covering of pyroxyline or other suitable material adapted
to be applied in a plastic state and to subsequently become rigid, said covering
being molded upon the flange a' and having an annular form, its outer surface being
preferably rounded or semi-circular in cross-section while its inner or under surface
s preferably flat.
In applying said covering, I first place the body a of the eyelet in a hole which
t closely fits in a die-plate c, the flange a standing above said plate. A ring or
nnular blank b' of the covering material or composition is laid upon the cutting
ip a³ of the flange, and then a die d which is formed to the outer body of the

page_text: eyelet and to mold the covering upon the flange a¹ is moved downwardly, a
projecting portion d' of said die entering the ring and pressing the material closely
against the inner surface of the flange, while the marginal portion of the die
co-operates with the die-plate c in forming the outer portion of the covering b.
The cutting lip a³ readily divides or splits the lower portion of the ring or biank 6'
causing its inner part to cover the inner surface of the flange, and its outer part to
cover the outer surface of the flange and readily enter the space overhung by the
inclined portion of the flange, so that the material is pressed closely against all
parts of the outer surface of the flange, the result being a head that is perfectly
formed at all parts.
The cutting lip as by splitting the lower part of the ring or blank of covering
material enables the cover to be formed with a comparatively light pressure and
without being softened by heat to such an extent as would otherwise be required.
The cutting lip and flange are subjected to outward pressure of the material
caused by the projecting portion d¹ of the die, said portion extending below the
outer portion d, and confining the inner portion of the blank so that it cannot
escape downwardly, but presses outwardly against the lip and flange, the annular
cutting lip as being enclosed by the pressure outwardly and interlocked with the
covering material.
The cutting lip, while yielding to a certain extent, resists the downward pressure
sufficiently to prevent it from being flattened down against the die plate, hence it
'ensures the presence of a raised edge within the molded cover and interlocked
therewith, even though the flange a¹ be flattened down against the die-plate, a
result which might be possible in some cases.
The displacement of the said lip and flange ar llustrated by the full and dotted
lines in Fig. 1, the full lines showing the position of the lip and flauge before the
head is applied, while the dotted lines show the position of said parts after the head
has been applied.
In the modification shown in Figs. 5 and 6 the flange as of the eyelet is made
horizontal or substantially at right-angles to the axis thereof, the marginal
portion a of the said flange being either turned up at right angles to the said
flange as in Fig. 5 or at any other suitable angle thereto as shown for example
in Fig. 6.
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 :-
1st. An eyelet comprising a tubular body, a frusto-conical flange formed on one
end of said body, the Hange joining the body of the eyelet at an obtuse angle which
forms a shoulder adapted to bear on a die-plate, and an annular upwardly projecting
cutting lip formed on the upper edge of said flange and standing at an angle
therewith, as set forth.
2nd. An eyelet comprising a tubular body, a frusto-conical flange formed on one
end of said body, the flange joining the body of the eyelet at at obtuse angle which
forms a shoulder adapted to bear on a die-plate, an annular upwardly projecting
cutting lip formed on the upper edge of said flange and standing at an angle there-
with, and an annular covering molded on said lip and flange, the lip being formed
to cut the mass of covering composition while the latter is being forced down
onto the flange, the angle at which said lip projects from the flange ensuring the
upward projection of the lip in the molded covering, as set forth.
HASELTINE,
AKE & Co.,
45 Southampton Buildings, London V.C., Agents for the Applicant.