Year: 1899

page_text: I, THOMAS GEORGE FOSTER, Manufacturer, of Cherlotte Street, in the Town of
Peterborough, in the County of Peterborough, in the Province of Ontario, Canada,
do hereby declare the nature of this invention, to be as follows:-
My invention relates to improvements in snap hooks and the object of the
invention is to design a simple, cheap, durable and safe snap hook adaptable
for various purposes and it consists essentially of a snap hook having a loop-
shank, a cross bar and centre pin and a hook formed preferably of ribbon steel
pivotally supported on the centre pin and having the free end of the hook provided
with an off-set whereby it may be held securely in position when closed by the
cross bar of the shank and yet may be readily freed from such cross bar by pressing
upon the main body of the hook, so as to release the ring, eye or other portion
to which the hook is connected as hereinafter more particularly explained.
Fig. 1, is a perspective view of my improved snap hook showing it closed.
Fig. 2, is a view showing it open.
Fig. 3, is a longitudinal section showing it in full lines closed and in dotted
lines open.
In the drawings like letters of reference indicate corresponding parts in each
figure.
1
A is the shank of the hook, which is formed with an end cross bar a to which
the strap is connected, and curvulate forward extensions a connected together
by a cross bar a². The bottom of the curvulate extensions are connected together
by a centre pin preferably cast with the rest of the shank.
B is the hook, which is formed of a double piece of ribbon steel doubled around
the centre pin and curved around the end of the hook, thereby forming a leaf
to the hook, which serves to strengthen the spring at the free end of the hook
and also receive the wear from the article grasped.
It will be noticed that the two leaves of the spring are bent so as to closely
encircle the centre pin a. The free end of the hook B is provided with an off-
set forming a shoulder and is preferably curved to the end as shown, so as
to be within the curve of the arc of the free end of the hook.
By pressing upon the outer end of the hook on the opposite side to the pivot
point the hook may be released and by pressing on the opposite side when in
the position shown in Fig. 2, the hook may be thrown back into the position
shown in this figure and also as shown in Fig. 3. When the ring or article
grasped by the end of the hook is inserted when the hook is open as shown in full
fines in Fig. 2, and dotted lines in Fig. 3, it will be understood that when closed
as shown in full lines in Fig. 1, and Fig. 3 that the strain upon the hook will
be practically on a line with the centre pin and end bar of the shank, thereby
preventing any tendency whatsoever of the shoulder b becoming disengaged from
the cross bar a

page_text: It will be seen from this description that a snap hook, such as I describe is
very simple and very cheap and necessarily safe and durable as will be understood
from what has been hereinbefore described.
Dated the 6th day of March 1899.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.
I, THOMAS GEORGE FOSTER, Manufacturer, of Cherlotte Street, in the Town of
Peterborough, in the County of Peterborough, in the Province of Ontario, Canada,
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:-
My invention relates to improvements in snap hooks and the object of the
invention is to design a simple, cheap, durable and safe snap hook adaptable
for various purposes and it consists essentially of a snap hook having a loop-
shank, a cross bar and centre pin and a hook formed preferably of ribbon steel
pivotally supported on the centre pin and having the free end of the hook provided
with an offset whereby it may be held securely in position when closed by the
cross bar of the shank and yet may be readily freed from such cross bar by pressing
upon the main body of the hook, so as to release the ring, eye or other portion
to which the hook is connected as hereinafter more particularly explained
with reference to the drawing filed with my Provisional Specification, in which:-
Figure 1 is a perspective view of my improved snap hook shewing it closed:
Figure 2 is a view showing it open:
Figure 3 is a longitudinal section showing it in full lines closed and in dotted
lines open.
In the drawings like letters of reference indicate corresponding parts in each
figure.
A is the shank of the hook, which is formed with an end cross bar a to which
the strap is connected, and curvulate forward extensions a¹ connected together
by a cross bar a². The bottom of the curvulate extensions are connected together
by a centre pin a³ preferably cast with the rest of the shank.
B is the hook, which is formed of a double piece of ribbon steel doubled around
the centre pin and curved around the end of the hook, thereby forming a leaf
to the hook, which serves to strengthen the spring at the free end of the hook
and also receive the wear from the article grasped.
It will be noticed that the two leaves of the spring are bent so as to closely
encircle the centre pin a³. The free end of the hook B is provided with an off-
set, forming a shoulder and is preferably curved to the end as shewn, so as
to be within the curve of the arc of the free end of the hook,
By pressing upon the outer end of the hook on the opposite side to the pivot
point the hook may be released and by pressing on the opposite side when in
the position shewn in Figure 2, the hook may be thrown back into the position
shown in this figure and also as shown in Figure 3. When the ring or article
grasped by the end of the hook is inserted when the hook is open, as shown in
full lines in Figure 2, and dotted lines in Figure 3, it will be understood that
when closed as shown in full lines in Figure 1 and Figure 3, that the strain
upon the hook will be practically on a line with the centre pin and end bar of

page_text: the shank, thereby preventing any tendency whatsoever of the shoulder & becoming
disengaged from the cross bar a².
It will be seen from this description that a snap hook, such as I describe is
very simple and very cheap and necessarily safe and durable as will be understood
from what has been herein before described.
Having now particularly described and ascertained the nature of my said
invention and in what manner the same is to be performed I declare that what
I claim is:-
-
1. A snap hook comprising the shank A, a centre pin and cross bar a and
a hook formed of a flat spring pivoted on said pin a³, the free end of said hook
being adapted to rest beneath the flat under face of the cross bar a², substantially
as described.
2. A snap hook comprising the shank having a centre pin, and an upwardly
curved portion terminating in a flat cross bar and a hook formed of a flat spring
having a portion bent around said centre pin and back upon itself to provide a
reinforce, the end of the hook being adapted to rest beneath the flat face of the
cross piece, substantially as described.
Dated the 6th dor of Danamtuar 1800.
G. F. REDFERN & Co.,
4, South Street, Finsbury, London, Agents for the Applicant.