Improvements in Swivel or other similar Safety Hooks.
Year: 1898

page_text: PROVISIONAL SPECIFICATION.
Improvements in Swivel or other similar Safety Hooks.
I ARNOLD HASELER, of 31, Tenby Street, in the City of Birmingham, Manu-
facturing Jeweller, do hereby declare the nature of this invention to be as
follows:- -
This invention relates to improvements in hooks which are usually attached to
swivel actions, and largely used for connections in jewellery, but which may be
used for other similar purposes.
•
According to this invention two hook shaped parts are provided with a flat-
tened part at their one end having a central hole for pivot pin. The other end
of these hooks are halved so that a portion of each hook lies in a corresponding
cut away part of the other hook, so as to form (when closed) a complete loop.
The eye of the loop is thus at right angles to the axial movement..
A spring how is now made having an eye at one end with an openended slot
from such slot outwards. This outwardly extending part is further shaped to
receive the flattened pivot ends of the before named hook parts. Such part acts
as a spring and closes tightly upon the said pivot ends. Upon the outer surface
of these two hook ends are formed ribs or recesses, which shall agree with and fit
into recesses or ribs formed upon the inner surfaces of the slot in the bow, so
that when opening the hook parts the spring bow is forced outwards, but imme-
diately the ribs and recesses come fair with each other they snap one to the
other. The joint pivot passes through the bow and the hook parts, permitting
the spring movement of the one side of the bow."
If desired the spring bow and one of the hook parts may be in one piece.
In some cases where a swivel action is required in addition to the spring hook,
the ordinary swivel eye may be connected to the outer end of the spring bow,
or the ordinary swivel may be attached to the usual swivel (hollow) box, to the
front end of which are pivoted the hook parts. In such cases the inner end of
the hook parts are shaped so as to be operated upon by an internal spring carried
within the box so that such hooks may strongly tend to their closed position.
Dated this 8th day of September 1898.
CHARLES T. POWELL,
Applicant's Agent.
Improvements in Swivel or other similar Safety Hooks.
I ARNOLD HASELER, of 31; Tenby Street, in the City of Birmingham, Manu-
acturing Jeweller, do hereby declare the nature of this invention and in what
[Price 8d.1

page_text: manner the same is to be performed, to be particularly described and ascertained
in and by the following statement:-
This invention relates to improvements in hooks which are usually attached to
swivel actions, and largely used for connections in jewellery, but which may be
used for other similar purposes.
According to this invention, two hook shaped parts are provided with a flat-
tened part at their one end having a central hole for pivot pin. The other end
of these hooks are halved so that a portion of each hook lies in a corresponding
cut away part of the other hook, so as to form (when closed) a complete loop.
The eye of the loop is thus at right angles to the axial movement.
A spring bow is now made having an eye at one end with an open ended slot
from such eye outwards. This outwardly extending part is further shaped to
receive the flattened pivot ends of the before named hook parts. Such part acts
as a spring and closes tightly upon the said pivot ends. Upon the outer surface
of these two hook ends are formed ribs or recesses, which shall agree with and fit
into recesses or ribs formed upon the inner surfaces of the slot in the bow, so
that when opening the hook parts the spring bow is forced outwards, but imme-
diately the ribs and recesses come fair with each other they snap one to the
other. The joint pivot passes through the bow and the hook parts, permitting
the spring movement of the one side of the bow.
If desired the spring bow and one of the hook parts may be in one piece.
In some cases where a swivel action is required in addition to the spring hook,
the ordinary swivel eye may be connected to the outer end of the spring bow,
In order to more clearly explain this my invention, I have appended, hereunto
an illustrative drawing, upon which are figures and numbers of reference, similar
numbers referring throughout the several views to the same thing or part.
Fig. 1, is a front view, and Fig. 2, a side view of this my invention.
Fig. 3, shows a side view of the hook when opened.
Fig. 4, is a side view, and Fig. 5, a front view in detail of one of the movable
hooks.
Figs. 6 and 7, show front and side views of the two hook parts secured to
each other by means of an eyelet rivet.
Fig. 8, shows sectional view of this my improved hook adapted to and fitted
with a swivel action; and also in which one of the hook parts is made in one
with the spring bow portion.
Figs. 9, 10, 11 & 12, show details of this modification.
Referring to Figs. 1 to 5, the hook parts 14 and 15 are made with their inner
ends flattened to accommodate the spring bow 16. which said bow and the said
ends are loosely connected together by central pivot pin 17, which permits of a
certain amount of lateral movement of the sides of the bow. The outer ends 18,
of these hooks are halved so that a portion of each hook lies in a corresponding
cut away part of the other hook, so as to form (when closed) a complete loop.
The abutments at 20, are undercut as much as convenient so as to increase the
resistance to any tendency in the two parts to become involuntarily open. It
will be seen that the eye 19, is thus at right angles to the axial movement about
pivot 17. Upon the flattened ends of the hook parts are formed ribs 21, which
agree with and fit into recesses formed in the spring bow 16, hence when the
hook parts are opened (as seen in Fig. 3) the spring bow is forced outwards, but
again close with a snap when they become fair with each other.
In Figs. 6 and 7, instead of the spring how 16, I may connect these hook
parts by an eyelet 22, which is also placed axially at right angles to the loop 19,
and which as before closed with a spring snap, by reason of the undercut abut-
ments.
Referring now to Figs. 3 to 12 inclusive, it will be seen that this my inven-
tion may be modified somewhat by making one of the hook parts in one with the
spring bow 16, and also further adapted to a terminal swivel. In Fig. 9. the
one piece book and spring bow are shown, and in Fig. 10, the other part hook

page_text: is shown. In this case I may dispense with the right through pivot pin, by
forming the pivot peg 17ª, upon the one hook part which fits into the recess 17b
in the other part. The outer end 23, is made of a round cross sectional shape,
and grooved in at 24, so that the tubular terminal bow 25, may be passed
thereon, with its edge turned into the groove 24, with sufficient freedom for
rotation.
Having now particularly described and ascertained the nature of this my
said invention, and in what manner the same is to be performed, I declare that
what I claim is:-
1. In swivel or other similar safety hooks, the combination of spring bow 16,
and two hook parts 14 and 15, having their outer ends 18 halved and undercut
to each other, both of which are pivotwise attached to said bow, with ribs 21,
and their recesses, all substantially as set forth and shown.
2. The combination of the one piece spring bow and one part hook with the
one part movable hook having rib 21 and its recess the outer part of such hooks
being halved and undercut, substantially as set forth and shown.
3. Two halved and undercut hook parts secured to each other by eyelet with
movement at right angle to the loop formed by the said hook part.
4. The combination with halved and undercut hook parts and spring bow with
their springwise connections of the swivel terminal bow 25, substantially as set
forth and shown.
Dated this 5th day of June 1899
CHARLES T. POWELL,
Applicant's Agent.