Improvements in Extensible Shank Stud Buttons.
Year: 1899

page_text: PROVISIONAL SPECIFICATION.
Improvements in Extensible Shank Stud Buttons.
We, THOMAS MORTON, of Saint George's Place, in the City of Birmingham,
Manufacturer, and WILLIAM ERNEST PATTERSON, of 189, Warstone Lane, in the
City of Birmingham, Jeweller, do hereby declare the nature of this invention
to be as follows:.
This invention relates to improvements in stud buttons having extensible
shanks, and consists broadly in the combination of a head with a stem having
a slotted gap or opening, with a cross pin or bar near its outer end, and a back
having a tubular shank in which is secured a spring having enlarged spaces at
or near its ends with a middle narrowed part, and so arranged that the cross pin
or bar of the stem shall travel along the said spring, and having rest therein
at each end in the enlarged spaces, the said spring yielding under pressure to
permit of the travel of the cross pin or bar along the narrowed part of the
spring. This arrangement may be adopted to stud buttons having different
sectional shaped shanks, but generally applied to round or oblong shapes.
As applied to a round shank for instance, we preferably make the spring of
wire having an eye like shape at each end with a mid-parallel portion, whose
latter two wires lie a little apart, the two ends of the wire abutting each other
at the outer end of one of the eyes, which said latter eye is made somewhat
larger than the other, and which occupies the position in the interior of the
back. Any desirable head may be used, fixed or hinged &c., to which is attached
a circular stem, having a middle slot formed in its length with a cross pin
passing from side to side near its outer end. The slot is sufficiently wide to
permit of the spring travelling freely therein. The spring is now placed in
the slot by being sprung open to permit the cross pin to enter its interior. The
lower end of the spring extends a little beyond the end of the stem. The stem
with the spring is now passed down the tubular shank, until the lower eye of
the spring extends a little beyond the base plate of the shank, when a bar or
strip is threaded across the back of the plate, and through the said eye, thus
preventing the withdrawal of the spring The shape of this lower eye may be
modified to suit the strip, inasmuch as its opening out portion from the narrowed
part alone, serves to close behind the cross pin or bar. The said base plate is
now supplemented by a back cover plate &c., and if desirable by a supplemental
front cover &c. also.
In the case of an oblong or similarly shaped shank, by reason of having a wider
stem with a wider slot, we may use a flat strip steel spring, having the eve
at its upper end. and its narrowed middle part, and then again opening out at
its lower part as before to lie against the back of the base plate of the shank.
with or without a threaded cross strip or bar. These parts are further mounted
and finished as before described.
Thus in each case, the spring is fixed longitudinally to the base, with the
cross pin in the stem travelling from the opening out at the ene end, along the
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page_text: parallel narrowed part into the enlarged eye at its other end, the said pin occupy-
ing such end positions with a click or jerk, and requiring some little force to
change its position.
Dated this 28th day of March 1899.
CHARLES T. POWELL,
Applicants' Agent.
Improvements in Extensible Shank Stud Buttons.
We, THOMAS MORTON, of Saint George's Place, in the City of Birmingham.
Manufacturer. and WILLIAM ERNEST PATTERSON, of 189, Warstone Lane, in the
City of Birmingham, Jeweller, 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 improvements in stud buttons having extensible
shanks, and consists broadly in the combination of a head with a stem having
a slotted gan or opening, with a cross pin or har near its outer end, and a back
having a tubular shank in which is secured a spring having enlarged spaces at
or near its ends with a middle narrowed part, and so arranged that the cross pin
or bar of the stem shall travel along the said spring, and having rest therein
at each end in the enlarged spaces, the said spring yielding under pressure to
permit of the travel of the cross pin or bar along the narrowed part of the
spring. This arrangement may be adopted to stud buttons having different
sectional shaped shanks, but generally applied to round or oblong shapes.
In order to more clearly explain this our invention we have hereunto appended
an illustrative drawing upon which are figures and numbers of reference, similar
numbers referring throughout the several views to the same thing or part, and
in which:
-
Figs. 1, 2 and 3 are views showing this our invention as applied to a stud
button having a round shank, and in which the opening end of the spring lies
in the back part of the stud, Fig. 2, being a sectional view showing stud shortened,
and Fig. 3, showing the same lengthened.
Figs. 4 and 5, show a modified form of button front and shank, as adapted
to Figs. 1 to 3.
Figs. 6 to 8 inclusive are views showing this our invention as applied to a
studbutton having a round shank, but with the opening end of the spring arranged
in the head of the button.
Figs. 9 to 12 inclusive are detailed views of the inner parts employed in Figs. 1
to 8.
Figs. 13 to 15 inclusive show this our invention as applied to a stud having
an oblong sectional shank, Figs. 14 and 15 being sectional views respectively
of its shortened and extended positions.
Figs. 16 to 18. are views of the detail portions of the oblong shank form.
Referring to Figs. 1 to 5, and Figs. 9 to 12:-The button is shown as having
a round stem (or shank), and the whole built up as follows:-20, is the spring.
which in this case may conveniently be made of wire having an eye 21, at one
end, and eve 22. at the other end, with a mid-parallel portion 23, whose latter
two wires lie a little apart, the two ends 24, 25, of the wire abutting each other
at the outer end of the eye 22, which said latter eye is made somewhat larger
than the other.
Any desirable head 26, may be used, fixed or hinged &c., to which is attached a

page_text: circular stem 27, having a middle slot 28, formed in its length with a cross
pin 29, passing from side to side near its outer end. The slot is sufficiently
ride to permit of the spring travelling freely therein.
In Figs. 2 and 3, this stem 27, is shown tubular and therefore the slot 28, need
not be so long as when such stem is solid as shown in Figs. 4 and 5. Also the
cross pin 29, may be simply a pin passed through the two sides of the stem as
shown in Figs. 2, 3, 4 & 5, or may be formed by bending the wire into the staple
like shape as shown in Fig. 11, the latter being usually preferred in combination
with the tubular stem when used as in Figs. 6, 7 & 8. The spring is now placed
in the stem by being sprung open to permit the cross pin 29, to enter its interior.
The lower end of the spring extends a little beyond the end of the stem. The
stem with the spring is now passed down the tubular shank 30, until the lower
eye of the spring extends a little beyond the base plate 31, of the shank, when
a bar or strip 32, of any suitable shape is threaded across the back of the shank
plate, and through the said eye, this preventing the withdrawal of the spring.
The shape of this lower eye may be modified to suit the strip. The said base
plate 31, is now supplemented by a back cover plate 33 &c., as may be required.
Upon reference to Figs. 6, 7 and 8, it will be seen that the several parts are
similar to those described for Figs. 1, 2 and 3, but the spring &c. arranged the
opposite way endwise, and the tubular (or solid) stem 27, in which the spring
is secured is carried in the back of the button, and the external tubular shank 30.
is secured to the head 26 slight modifications being made in the shape and size of
the parts to suit this reverse position.
Upon reference to Figs. 13 to 18 inclusive, in the case of an oblong or similarly
shaped shank. by reason of having a wider stem and a wider slot, we may use a
flat strip steel spring, as shown in Fig. 16, having the ore 21, at its upper end,
and its narrowed middle part 23, and then again opening out at 34, at its lower
part as before to lie against the back of the base plate of the shank 30º, with or
without a threaded cross strip or bar.
As will be seen in Figs. 14 and 15, the cross bar is not necessary. These parts
are further mounted and finished as before described.
Thus in each case, the spring is fixed longitudinally in the shank, with the
cross pin in the stem travelling from the opening out at the one end, along the
parallel narrowed part into the enlarged eye at its other end, the said pin occupy-
ing such end positions with a click or jerk, and requiring some little force to
change its position.
Having now particularly described and ascertained the nature of this our said
invention, and in what manner the same is to be performed, we declare that what
we claim is :-
The combination in an extensible shank stud button having the shank 30,
and telescopic stem 27, of the spring 20, secured to shank, having the middle
narrowed part 23, with end enlargements 21, 22, traversed by cross pin 29, all
as set forth and shown in the drawings.
Dated this 071