An Improved Covered Head Eyelet, and the Method of and Mechanism for Covering the Heads of such Eyelets.
Year: 1895

page_text: Date of Application, 10th Dec., 1895-Accepted, 11th Jan., 1896
COMPLETE DIEUIFICATION.
An Improved Covered Head Eyelet, and the Method of and Mechanism
for Covering the Heads of such Eyelets.
We, WILLIAM HENRY FORCE of 216 Eastern Avenue, Machinist, MAXIMD
ONEZIME PARENTEAU of No. 315 Chestnut Street, Machinist, and ABIJAH
DWIGHT CUTLER of No. 66 Union Street, Manufacturer all of Springfield in
the County of Hampden and State of Massachusetts, United States of America
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 :-
Heretofore the heads of certain kinds of metallic eyelets for boots, shoes, and
the like have been covered by a plastic compound, usually celluloid. The heads
of the metallic eyelets were pressed into a sheet of warm and plastic celluloid, and
when cold the eyelets with their covering were broken from the sheets, and the
eyelets then finished in a tumbling barrel. By the present invention washers of
plastic material are cut or punched from sheets, then centered on the metallic.
eyelets and moulded there by dies of a peculiar construction, one of the dies being
heated and serving to mould the plastic heads on the eyelets.
Referring to the accompanying drawings,
Figure 1 is a partial section and partial elevation of a pair of dies, showing in
elevation the eyelet and washer therein;
Figure 2 is a section of the dies, closed, showing the eyelet and head therein;
Figure 3 is a plan of the female die with covered eyelet therein;
Figure 4 is a plan of the metallic eyelet ;
Figure 5 is a side elevation of the eyelet with covered head;
Figure 6 is a plan of the plastic washer.
Metallic eyelets having cylindrical bodies a and flanges b are made in any usual
way. The female die D is made with a cylindrical hole therein to receive the
body a of the eyelet, and a recess s around the mouth of the hole, receives the
flange of the eyelet, which is preferably held a little above the floor of the recess
by a crimp in the eyelet, just below the flange.
Plastic washers u are cut or punched from sheets of celluloid or similar material.
A washer u is placed on top of the flange 6 of the eyelet, as shown in Figure 2.
The male die H has a conical projection i which is guided to the centre of the
opening in the female die as the movable die rises and falls, by suitable guide pins.
Around the cone i there is a recess m and surrounding this recess is a projecting
ring o, which ring neatly fits the recess of the female die.
One of the dies is heated to such extent as to soften the washers u. The dies
are closed on the eyelet and washer, and the conical projection i on the die, passing
through the hole in the washer, serves to centre the washer on the flange of the
eyelet, and to form and smoothly finish the inner edge of the washer. The outer
edge of the washer u is turned under the flange of the eyelet by the action of the
ring o, and at the same time rounded and neatly finished. The dies are then taken
apart, and the head h of the washer, when cool, requires no further finishing.
Only a single die and eyelet are shown, but in practice a great many dies are
assembled on one die block, so that the covering of the heads is very rapid.
When finished by this method the washers have smooth outer and inner edges,
and are very superior.

page_text: Having now particularly described and ascertained the nature of our said inven-
tion and in what manner the same is to be performed, we declare that what we
claim is :-
1. The eyelet baving a metallic body and a head covered by plastic material,
the body having a crimp and a head closed over the flange and embracing the
same, substantially as described.
2. The female die having a cylindrical hole therein and a recess around the
mouth thereof, and the male die having a conical projection and a ring round the
same and adapted to fit the female die substantially as described.
3. The method of covering the heads of eyelets with plastic material, which
consists in forming metallic eyelets and plastic washers separately, assembling
them as described, and centering the washers and forming them on on the heads of
the eyelets by the action of a hot die, all substantially as stated.
Dated this 9th day of December 1895.
WM. P. THOMPSON & Co.,
Of 6 Lord Street, Liverpool, Agents for the Applicants.
WM. P. THOMPSON & Co.,
Of 6 Lord Street, Liverpool, Agents for the Applicants.