IMPROVEMENTS IN SOLITAIRES, STUDS, AND SIMILAR FASTENINGS."
Year: 1880

page_text: A
LETTERS PATENT to Friedrich Hermann Felix Engel, Civil Engineer and
Patent Agent, in the City of Hamburg, Germany, for an Invention of
"IMPROVEMENTS IN SOLITAIRES, STUDS, AND SIMILAR FASTENINGS."
communication from Carl Julius Gottfried Schneider, of Hamburg, in the
German Empire.
PROVISIONAL SPECIFICATION left by the said Friedrich Hermann Felix
Engel at the Office of the Commissioners of Patents on the 24th February
1880.
FRIEDRICH HERMANN FELIX ENGEL, Civil Engineer and Patent Agent, in the
City of Hamburg, Germany. "IMPROVEMENTS IN SOLITAIRES, STUDS, AND SIMILAR
FASTENINGS." A cominunication from Carl Julius Gottfried Schneider, of Hamburg,
in the German Empire.
This Invention relates to stud, button, or solitaire fastenings which are con-
structed of two parts, firstly, the bottom part, which consists of a hollow tube or a
metal cylinder formed with a recess at its upper end, and fastened with its other
end to a foot plate, which tube or cylinder is pushed through the button holes ;
and, secondly, the top part, which consists of a head plate, to which is fastened a
metal plate formed with a projection at its centre and a spring attachment, by
means of which it is fixed to the tube or cylinder at the foot of the fastening. The
spring attachment consists of a disc hinged to the metal plate of the top part, which
disc is slotted at its free end, whilst a flat spring placed between head plate and
metal plate presses against the hinged end of this disc.
The manner of fastening the stud, solitaire, or other article to which the attach-
ment is applied is as follows:-The disc with its forked or slotted end is pushed
over the end of the tube or cylinder of the foot part after the latter has been pushed
through the button holes, and is prevented from slipping off this tube or cylinder
by a small projecting rim formed on the top of same. The head plate is then
turned around the hinges of the slotted disc through a space of 90 degrees of the
circle, after which the metal plate of the top part rests upon the end of the tube or
cylinder, and is kept to it by the inner flat spring, whilst the projecting part of the
metal plate enters into the recess of the tube or cylinder, and prevents any side
motion between head and bottom part of the fastening.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Friedrich Hermann Felix Engel in the Great Seal Patent Office on
the 24th August 1880..
FRIEDRICH HERMANN FELIX ENGEL, Civil Engineer and Patent Agent, in the
City of Hamburg, Germany. "IMPROVEMENTS IN SOLITAIRES, STUDS, AND SIMILAR
FASTENINGS." A communication from Carl Julius Gottfried Schneider, of Hamburg,
in the German Empire.
This Invention relates to stud; button, or solitaire fastenings which are con⚫
structed of two parts, firstly, the bottom part, which consists of a hollow tube or a
metal cylinder formed with a recess at its upper end, and fastened with its other
end to a foot plate, which tube or cylinder is pushed through the button holes ;
and, secondly, the top part, which consists of a head plate, to which is fastened a
metal plate formed with a projection at its centre and a spring attachment, by
means of which it is fixed to the tube or cylinder of the foot of the fastening. The
spring attachment consists of a disc hinged to the metal plate of the top part, which
disc is slotted at its free end, whilst a flat spring placed between head plate and
metal plate presses against the hinged end of this disc.
The manner of fastening the stud, solitaire, or other article to which the attach-
ment is applied is as follows:-The disc with its forked or slotted end is pushed
over the end of the tube or cylinder of the foot part after the latter has been pushed a
through the button holes, and is prevented from slipping off this tube or cylinder
by a small projecting rim formed on the top of same. The head plate is then
turned around the hinges of the slotted disc through a space of 90 degrees of the
circle, after which the metal plate of the top part rests upon the end of the tube or
cylinder, and is kept to it by the inner flat spring, whilst the projecting part of the
metal plate enters into the recess of the tube or cylinder and prevents any side
motion between head and bottom part of the fastening.
The Invention is illustrated in the accompanying Sheet of Drawings, of which
Fig. 1 is a side view of a stud with opened top, partly in section; Fig. 2, a sectional
side view of the closed stud; whilst Fig. 3 is a top view of the open, and Fig. 4 a
plan of the closed stud with head plate removed. The bottom part of the stud
consists of a cylinder A, with foot plate B and upper projecting rin C furnished
with a recess formed within the upper end of the cylinder. The top or upper part D
consists of the button or stud plate P, to which is fastened a metal plate E with
projecting pin R; H is a metal or other plate hinged to E, and slotted at the front;
end, whilst it is kept in position (in the open as well as in the closed state of the
stud) by the pressure of spring r acting against a short arm of plate H, as shown in
Figs. 1 and 2.
For fastening the stud cylinder A is pushed through the button hole or button
holes, and plate H of top part D is in open state (see Figs. 1 and 3) pushed over
cylinder A just underneath of rim C; D is then turned down in the position shown
in Figs. 2 and 4, in which state the projection Renters into the recess of cylinder A,
to which it is kept by the action of spring r.
For opening the stud the top part is turned upward around the hinge plate H,
and is drawn from the cylinder, after which the bottom part can directly be removed
from the button holes.
Having now described the nature and particulars of the said Invention, I
claim,-
The fastening for solitaires, studs, and buttons, consisting of two parts, of which
the bottom part is formed of a cylinder with foot plate and upper rim, and having
a recess at its top end, whilst the upper closing part consists of a metal plate

page_text: carrying the head of the stud, solitaire, or button, which plate is furnished with a
projection at the bottom, a hinged partly slotted plate, and a spring, substantially
for the purpose and in the manner as described and as illustrated in the accompanying
Sheet of Drawings.
In witness whereof, I, the said Friedrich Hermann Felix Engel, have hereunto
set my hand and seal, this Nineteenth day of August, in the year of our
Lord One thousand eight hundred and eighty.