IMPROVEMENTS
Year: 1883

page_text: PROVISIONAL SPECIFICATION left by the said Bruno Wesselmann at the
Office of the Commissioners of Patents on the 10th October 1883.
BRUNO WESSELMANN of Hamburg Germany Engineer
SNAP HOOKS
"
"IMPROVEMENTS IN
This Invention relates to improvements in snap hooks and the objects of my
improvements are the construction of the latch and the mechanism for automatically
pressing the latch onto the end of the hook and the manner of connecting the hook
with the ring, whereon the hook is suspended.
Figure 1 is a side elevation, partly in section and Figure 2 a front view of a
hook, the mousing-latch a of which is provided with an axial core or otherwise
tubular wherein rests the spiral spring b. Into the lower extremity of such
spring b, is inserted the bolt c, or it may be a ball or truck, which when the latch a
is opened, moves upon the incline or cam surface d. formed by the bearing of the
hinge bolt e. and thereby effecting the compression of the spring b. This tension
of the spring b causes the mousing a to close the hook when being left free.
The hook illustrated by Figure 3 in the side elevation partly in section) and by
Figure 4 in the front view is constructed exactly as above described, only its eye
may be opened for introducing the connecting ring x.
The aperture of the eye has the form of an 8, which is open at the top. The
lower curve serves to receive the ring x while the upper one may be filled by a
cylindrical bolt f. which is prevented from moving sideways by the flaps g of the
mousing-hinge, as shown at Figure 5 which is a horizontal section taken at the
line A. B. Figure 3.

page_text: SPECIFICATION in pursuance of the conditions of the Letters Patent filed
by the said Bruno Wesselmann in the Patent Office on the 10th April
1884.
BRUNO WESSELMANN of Hamburg Germany Engineer
SNAP-HOOKS
"
"IMPROVEMENTS IN
This invention relates to improvements in snap-hooks, and the objects of my
improvements are the construction of the latch and the mechanism for automatically
pressing the latch unto the end of the hook and the manner of connecting the hook
with the ring whereon the hook is suspended.
Figure 1 of the accompanying drawing illustrating my said invention is a side
elevation, partly in section, and Figure 2 a front view of a hook, the mousing
latch a of which is provided with an axial bore or otherwise tubular, wherein rests
the spiral spring b. Into the lower extremity of such spring b is inserted the
bolt c which when the latch a is opened moves upon the incline or cam surface d
formed by the bearing of the hinge bolte and thereby effecting compression of
the spring b. This tension of the spring b causes the mousing a to close the hook
when being left free.
A modification of the mousing is shown in Figures 3 and 4 The mousing a is
provided with a loose socket a¹ wherein the mousing a-engaging by means of a
pin i into the end of the hook-may be moved up and downs Such mousing may
be opened towards the outside of the hook as indicated by dotted lines in Figure 3
thereby allowing a rope stick or similar article of larger diameter to be introduced
into the hook then by opening towards the interior.
The book illustrated by Figure 5 is a side elevation partly in section, Figure 6
is the front view and Figure 7 is a horizontal section at the line A B Figure 5 may
be constructed in the same manner as above described, only its eye may be opened
for introducing the connecting ring . The aperture of the eye has the form of
an 8, which is open at the top. The lower curves serves to receive the ring
while the upper one may be filled by a cylindrical bolt f which is prevented from
moving sideways by the flaps g of the mousing hinge as shown at Figure 7..
Having thus fully described my invention what I desire to claim and secure by
Letters Patent is:
-
First In snap hooks the combination of a latch enclosing a spiral spring with
an incline or cam surface acting upon such spiral spring substantially as described
and illustrated by Figures 1 to 4 of the accompanying drawings
Second-In snap-hooks the combination of an open eye with a closing piece f
and flaps g of the spring latch substantially as and for the purpose specified.
In witness whereof I the said Bruno Wesselmann have hereunto set my hand
and seal this Seventh day of April in the year of our Lord One thousand eight
hundred and eighty four.