IMPROVEMENTS IN BUTTONS OR STUDS
Year: 1877

page_text: LETTERS PATENT to Charles Denton Abel, of Southampton. Buildings, in the
County of Middlesex, for the Invention of "IMPROVEMENTS IN BUTTONS OR
STUDS." A' communication from abroad by Pierre Rousseau, of Paris, in the
Republic of France.
PROVISIONAL SPECIFICATION left by the said Charles Denton Abel at the
Office of the Commissioners of Patents on the 1st June 1877.
"t
CHARLES DENTON ABEL, of Southampton Buildings, in the County of Middlesex.
IMPROVEMENTS IN BUTTONS OR STUDS." A communication froin abroad by Pierre
Rousseau, of Paris, in the Republic of France.
This Invention relates to the construction of a button or stud in such a manner
that its shank being inserted into the fabric of a garment the button or stud is held
there with sufficient firmness for use, but can be readily removed when required by
a direct pull outwards.
For this purpose there are mounted on the shank of the button or stud two
small bell cranks, each having a long arm and a short arm, and each having near its
pivot angles against which a spring presses, tending to hold the bell crank in the
one position or the other, in a manner similar to the action of the spring back of a
penknife on the blade thereof. When the two bell cranks are sprung into such a
position that their longer arms stand out in line with the shank of the button or stud
while their shorter arms project in opposite directions, nearly at right angles thereto,
then the two long arms can be thrust into a fabric or into a hole in the fabric, and
the button or stud being pressed towards the fabric, the latter bearing against the
shorter arms of the bell cranks causes them to spring inwards, thereby causing the
longer arms to spring outwards in opposite directions, so as to fold over the other'
side of the fabric. The button or stud is thus held with sufficient firmness for
ordinary use; but when it is required to remove it, a direct pull outwards effects

page_text: this by causing the longer arms of the bell cranks to spring back into a straight
line with the shank, so that they can be drawn back through the hole in the
fabric.
SPECIFICATION in pursuance of the conditions of tho Letters Patent filed by
the said Charles Denton Abel in the Great Seal Patent Office on the 14th
November 1877.
CHARLES DENTON ABEL, of Southampton Buildings, in the County of Middlesex.
"IMPROVEMENTS IN BUTTONS OR STUDS." A communication from abroad by Pierre
Rousseau, of Paris, in the Republic of France.
This Invention relates to the construction of a button or stud in such a manner
that its shank being inserted into the fabric of a garment the button or stud is held
thero with sufficient firmness for use, but can be readily removed when required by
a direct pull outwards.
For this purpose there are mounted on the shank of the button or stud two small
bell cranks, each having a long arm and a short arm, and each having near its pivot
angles against which a spring presses, tending to hold the bell crank in the one
position or the other, in a manner similar to the action of the spring back of a
penknife on the blade thereof. When the two bell cranks are sprung into such a
position that their longer arms stand out in line with the shank of the button or
stud, while their shorter arms project in opposite directions, nearly at right angles
thereto, then the two long arms can be thrust into a fabric or into a hole in the fabric,
and the button or stud being pressed towards the fabric, the latter bearing against
the shorter arms of the bell cranks causes them to spring inwards, thereby causing
the longer arms to spring outwards in opposite directions so as to fold over the other
side of the fabric. The button or stud is thus held with sufficient firmness for
ordinary use; but when it is required to remove it, a direct pull outwards effects
this by causing the longer arms of the bell cranks to spring back into a straight
line with the shank, so that they can be drawn back through the hole in the

page_text: It will be seen by Fig. 5 that when the button is attached, the short arms of the
levers are accommodated within the space corresponding to a shank between tho
bearings a, so that they do not tend to injure the button hole.
Having thus described 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
claim the construction of a button or stud with a pair of bell-crank levers or tangs
acting in combination with springs, substantially as and for the purpose herein set
forth.
In witness whereof, I, the said Charles Denton Abel, have hereunto set my
hand and seal, this Ninth day of November, in the year of our Lord One
thousand eight hundred and seventy-seven.
CHª, D. ABEL. (L.S.)