Improvements in Buckles.
Year: 1890

page_text: Date of Application, 10th June, 1890
Complete Specification Left, 10th Mar., 1891-Accepted, 2nd May, 1891
PROVISIONAL SPECIFICATION.
Improvements in Buckles.
I, EUGEN TURCK, of Lüdenscheid, in the Kingdom of Prussia, in the Empire
of Germany, Manufacturer, do hereby declare the nature of this invention to be
as follows:
My invention relates to improvements in buckles, especially applicable to that
kind of buckles, which hold the band or strap firmly grasped between jamming
surfaces instead of by means of a tongue or tongues which pierce through the
material of the band or strap. The jamming action in the improved buckle of my
invention is worked by leverage, the counter-part of the jamming-lever being pro-
vided by an arm, or arms which, being pivoted only at one end, while the other
end of said arm or arms is free, or not supported, are capable of yielding under the
pressure of the jamming-lever.
The improved buckle of my invention may be constructed according to various
modifications, so that the counter-piece of the jamming-lever consists either of one
single surface, or of two surfaces, which, though integral with each other, have a
yielding elastic motion independent of each other; also the jamming-lever may
be formed by one rigid piece, or it may equally be constituted by two arms
connected by a central hoop and having each an independent yielding motion of
its own.
The improved buckle of my invention consists of two parts, a jamming-lever and
a counter-piece or support, said two parts being pivoted to each other in a manner
to grasp the band or strap to be held, and to release the same when the lever is
thrown back or opened.
The novelty of this improved buckle consists in constructing the counter-piece or
support of the band or strap so as to form a bearing surface, or two bearing
surfaces which are capable of an elastically yielding motion on one side only, while
the other side is rigidly held in place. The fabrics or strap, being forced against
the support or bearing surface under the pressure of the jamming-lever, is clasped
by elastically yielding surfaces and not between rigid surfaces as has been hitherto
the case with jamming buckles. The particular advantage offered by the improved
buckle of my invention consists in its being able to grasp straps or bands of
varying size elastically between the jamming-lever and support, thereby avoiding
an undue strain put to the buckle, and also undue wear and tear affecting the
material of the strap or band.
The supporting arm or arms of the counter-piece or supporting surface of the
buckle, being free to yield on one side only and prevented from yielding on the
other side, are forced into a warped or skew-whiff position by the pressure exerted
upon the same, and the force of torsion thus obtained offers an elastic resistance to
the pressure of the jamming-lever, said resistance being equal in every part of the
support or bearing-surface.
The jamming lever, as before stated, instead of being made of one rigid piece,
may equally be constructed of two yielding arms counected to each other.
Dated this 9th day of June 1890.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Patent Agents for the Applicant.

page_text: COME DIE STEVIATION..
Improvements in Buckles.
I, EUGEN TURCK, of Lüdenscheid, in the Kingdom of Prussia, German
Empire, Manufacturer, 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 that class of lever-clamping buckles which consist of
two parts, namely, a base-piece on which the strap rests when it is clamped fast,
and a clamping-lever pivoted eccentrically in lugs on the base-piece. When the
lever is depressed, the eccentric pivoting causes it to press the strap down forcibly
on the base-piece, and, when said lever is raised, the strap is set free.
The object of my invention is to provide a buckle similar to the one described,
but having a yielding base-piece, which will allow clamp straps (or the like) of
unequal thickness or surface to be used. The yielding of the base-piece, or of the
clamping lever, or both, may be obtained either by constructing the same in such a
manner as to take a skewed or deflected position under pressure, or by dividing the
clamping part of the base-piece into two parts or branches united by a stout loop,
so that, when pressure is brought to bear on them, the branches may yield
elastically, independently and unequally.
In the accompanying drawings:-
Figure 1 is a front view of a buckle with the clamping lever open.
Figure 2 is a vertical section of the same,
Figure 3 a plan,
Figure 4 a plan with the clamping lever closed.
Figures 5, 6, 7 and 8 show other forms of buckles.
Figures 9 to 16 modifications in which the frame forms the clamping surface
or clasping edge, while the lever takes the place of the base-piece or bearing-
surface.
Referring to Figures 1, 2, 3 and 4 :—
s is a frame which may be stamped out of metal, one side s¹ of which is bent up
to receive one end of the lever, the part of which has an inclined and
preferably toothed or roughened surface. The other end of lever is pivoted in
the bent portion of the frames. When the lever is forced down into the
position shown in Figure 4, the inclined surface presses on the corresponding part
of the frames and causes the same to yield, as shown at Figure 4. The frames, while
yielding under the pressure of the lever-arm b₁, resists the said pressure by a
torsional force proportional to the distance 1, and the strap or band clasped between
the edge of lever-arm and surface of the frames is firmly held with equal
pressure along the whole extent of the line of pressure.
The other or opposite strap or band is secured within the slot c―d of the
frame s.
In the modification shown in Figures 5 and 6, the frames is split at the clamping.
end to form two branches. The clamping lever is pivoted in bent up
portions of the frame, and the clamping edge of the lever arm ¹ has two
inclined bearing surfaces, shown in Figure 6.
The modifications shown in Figures 9 to 16 consist in exchanging the clamping
portions of the lever and base-piece or frame. The inclined corrugated or
roughened edge or edges s³ are made to-form part of the base-piece or frames, the
edge of the frames being bent up to replace the bent arm b¹ of the lever b.
The bent side or edge 3 yields along with the frames elastically under the
pressure of the flat lever b exactly in the same manner, as described before with
reference to Figures 1 to 8.

page_text: Having now particularly described and ascertained the nature of my said inven-
tion and in what manner the same is to be performed, I declare that what I
claim is :-
1. In a clamping buckle, the combination of a frame or base pieces having one
or more yielding or elastic portions, and a clamping lever bb pivoted to said frame
in such manner that the latter resists the pressure of the lever arm by a torsional
force varying with the length of the frame.
2. In a clamping buckle, the combination of a frame or base pieces having one
or more yielding portions each provided with a bent inclined clamping edge s³ and
of a clamping lever b bearing against said inclined clamping edge or edges, sub-
stantially as described.
Dated this 6th day of March 1891.
WM. P. THOMPSON & Co.,
Of 6, Lord Street, Liverpool, Agents for the Applicant.