Year: 1886

page_text: I ALFRED JULIUS BOULT of 323 High Holborn in the County of Middlesex,
Engineer do hereby declare the nature of this invention (a communication from
Eugene Pringle of Gloversville, Fulton County, New York, in the United States
of America, Machinist), 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 that class of separable buttons consisting of two
members one of which is provided with a stud having a notch or groove in its
upper end, and the other having a head which encloses a spring one end of which
catches into the neck or groove in the stud and so holds the two members together.
The improvements are designed to remedy certain defects and difficulties attending
the attachment of the respective portions of the button as they have heretofore
been made to the leather or other material on which they are to be used; and the
invention consists in certain details of construction and the combinations and
arrangement of parts hereinafter more fully described and then particularly pointed
out in the claims.
In the accompanying drawings forming part of this specification―
Figure 1 is a side elevation of my improved stud;
•
Figure 2 represents a sectional view and a plan of the washer usod therewith ;
Figure 3 is a sectional view of the stud with the washer in position, but not
fastened;
Figure 4 is a similar view when the parts are secured in place on the material;
Figure 5 shows a plan and a sectional view of a tubular rivet ;
Figure 6 shows a plan and a sectional view of an attaching washer to be used
therewith;
Figure 7 is a sectional view of the button head, rivet and washer in position for
clinching;
Figure 8 is a similar view of all parts of the button in their respective position
on a glove or boot;
Figure 9 is a horizontal section through the button head; and
Figures 10 and 11 are sectional views showing modified forms of the tubular
rivet and washer.

page_text: In the drawings-A is the stud, which differs from that usually employed in
having an annular tapering shoulder a, between the lower end of the reduced
middle section a³ and the top of the base section a¹ instead of the flat shoulder
commonly found in this position.
B is a washer, slightly concave on its lower side and having projecting downwardly!
from the central opening b¹ an annular knife-edge lip b, whose diameter is slightly
less than that of the base portion a' of the stud A, so that when the washer is
placed on the stud, as shown in Figure 4, and forced down under pressure the
knife-edge lip b will be expanded to the size of the base portion a¹ of the stud, and
as it scrapes on the surface of the latter will clear the same from whatever material
may gather around said base portion when the stud is pushed through the hole in
the material to which the stud is to be secured. The washer is then fastened on
the stud by punching or clinching the metal of the annular tapering shoulder a
down on the upper side of the washer, by any suitable means to produce the
holding burr or clinch a³ shown by dotted lines in Figure 5, whereby the washer is
firmly held down and the stud is secured to the material as shown. By this part
of this improvement 1 am enabled to use smaller holes through the material than
heretofore required for the passage of the stud, as the edge of the lip b scrapes the
material down from the sides of the stud, and works between the metal of the stud
and the material, thus packing the latter wholly on the outside of said lip, while
the concavity 6 of the washer will receive this packed material as it is worked
outwardly by the action of the lip n in its progress downward on the stud.
C is the button head rivet made with a bore of uniform size and having its
entering end provided with the annular tapering portion c running down from
shoulder c¹ to a knife edge c. At e³ is shown a slot to receive a spring S, as
hereafter explained.
D is the washer which co-operates with the rivet C in holding the button head H
to the material of the glove or boot, and is made with an annular cavity d in its
upper side. An upwardly projecting annular lip d¹ surrounds the central hole d³,
which hole is of about the same diameter as the outside of the entering end of
rivet C between shoulder c¹ and its knife edge so that the taper of the end of
the rivet C will enter the hole de far enough to engage with the same. The button
head is provided with a wire spring S, one end of which passes through the slot o³
in the side of the tube C and catches in a notch in the stud in a manner well
understood and therefore not necessary to describe here.
In securing the button head E to the fabric, the rivet C is pushed through the
centre of the button and through a suitable hole in the material to which it is to
be attached; the washer D is then slipped on the tapering end of the rivet and
with a suitable tool is forced upon the said rivet with its annular lip & scraping on
the outer surface of the latter, and moving before it all the material adhering to
the rivet, which tool will also operate on the tapering end portion of the rivet and
clinch the same down on the washer.
The tapering end portion of the rivet will, by reason of its relative reduction of
the thickness, readily yield before the applied force of the tool and become smoothly
and evenly seated on the lower side of the washer-the knife edge of the rivet
causing the joint to be almost imperceptible and without any material projection
or ridge.
The annular cavity d of the washer allows the material to gather therein while
the outer margin or edge of the washer will co-act with the outer marginal surface
of the disk h of the button head H to make a "bite" all around on the material
between them.
By my above described improvements the said washers B and D can be more
quickly applied to the respective co-acting devices, as the leather or fabric will be
prevented from working up between the edges of the holes of the respective
washers and the surfaces of the respective co-acting devices, which has been a great
difficulty heretofore in the use of the old form of construction of said parts. Another
advantageous result obtained, is, that the clinching of the respective parts will be

page_text: more readily effected without applying the degree of force heretofore required for
clinching the parts together.
These improvements will thus be found to be of great value to those who apply
buttons of this class to garments gloves, boots, etc., as they overcome difficulties
which have prevented the attachment of said buttons with sufficient rapidity to
make then commercially practicable, while at the same time as the holes in the
material can be made smaller with this improved button there is much less liability
of the stud or head becoming separated from the material by rough usage or
accident.
Having now particularly described and ascertained the nature of the said
invention as communicated to me by my foreign correspondent and in what
manner the same is to be performed I declare that what I claim is :-
1-In devices for securing parts of separable buttons to gloves, boots etc., the
stud A, having at the upper termination of its base portion a³, the annular
tapering shoulder a for co-operation with a washer having a central hole slightly
smaller than said base portion a¹ for the purposes and operations, substantially as
set forth.
2-In devices for securing the parts of separable buttons to gloves, boots, etc.,
the washer B made with concavity be in its lower side and having the knife edge
form of annular lip b around the central hole 6, in combination with stud A,
having the annular tapering shoulder a running down to the base portion a¹, which
is slightly greater in its diameter than the central hole 6¹ of said washer, substan-
tially as and for the purposes and operations set forth.
3-In a separable button, the tubular rivet C having its upper portion of body,
below its head, made with heavy parallel walls and its end portion, opposite from
the head made with the annular downwardly taper from shoulder c, whereby the
upper portion of the said rivet between its head and shoulder c will be preserved
unaffected when force is applied to the tapering portion below said shoulder for
clinching the same down on the washer, substantially as set forth.
4-The combination with the tubular rivet C, having its lower end portion
made tapering, of the washer D, provided with the annular concavity and having
lip concentric to a central perforation which corresponds with the entering end
of the tapering portion of said tubular rivet, substantially as and for the purposes
set forth.
5-The combination with a button head H, provided with a central orifice and
the washer D having an upturned annular lip around its central perforation, of the
rivet C above described, having its upper portion fitting the orifice in said button.
head and the edge end of its tapering lower part fitting the central perforation of
said washer, substantially as set forth.
KARA