Improvements in Cee-spring Clips for Holding Papers and the like.
Year: 1895

page_text: PROVISIONAL
SPECIFICATION.
Improvements in Cee-spring Clips for Holding Papers and the like.
I, SAMUEL HENRY CROCKER of 36, Chancery Lane, London, Engineer, do
hereby declare the nature of this invention to be as follows:-
:-
This: invention relates to, an improved construction of cee-spring clips, for the
purpose of attaching together or holding sheets of paper and the like and is
intended to provide a device which can be easily applied, and which at the same
time is inexpensive to manufacture.
In accordance with my invention I use a cee-spring in conjunction with 2 lever
arms, against which the spring bears, and between which the papers. are, gripped.
In, spring. clips of this kind as hitherto constructed, the two lever arms of sheet
metal are fitted: in position through piercings, or slots provided in the cee-spring,
the lever passing through these slots at an acute angle one with the other. The
upper edges of these slots form fulcrums on which the levers turn when they are
pinched together at their extremities, thus opening them at the front or lower ends.
To secure the springs and, levers together, projections have been formed on one
part engaging with the other. Owing to the cutting of the springs at two parts, it
is obviously weakened. My invention employs, a cee spring in which no slots or
piercings whatever are made,, and thus the full power of the spring is obtained.
The two levers which I employ are somewhat similar in action to those commonly
used, the paper being gripped between their lower edges, which are extended for
the complete length of the cee-spring,, and the clip is opened by pressing the other
ends of the levers together. Instead however, of cutting or perforating the spring
and passing the levers through the perforations, the cee-spring is made plain, and
the middle portion of the levers are fitted at the outside of the cee-spring, partially
encircling it. The levers are of T shape, but instead of the central or vertical part
being made straight, it is curved or bent so as to fit closely upon the cee-spring.
The remaining portions of the levers at each end are straight, and arranged to fit
inside the cee-spring, the extremities of which bear upon the said levers. The ends
of the vertical portions of the levers are the parts used for opening the clip in the
same manner as the two levers are used in other cee-spring clips.
In order that the levers may be secured so that when pressed together at the top
the clip will open, according to one arrangement, the cross portion is cut so as to
form a rearwardly projecting extension (at each side of the central curved stem)
to engage inside. the cee-spring as before referred to. To fit the portions together,
the levers are slipped, on, from the end of the cee-spring, the said spring, lying in the
curves of each lever, and bearing upon the extensions at the sides. The parts can
be detached by sliding them, apart, but the pressure of the spring and the formation
of the levers, will prevent any accidental disconnection.
If found desirable the levers and spring, could be riveted together at the curved
portion of the. former..
According to a modification, instead of cutting the transverse part and bending
up the stem from the extremities of the cuts, a piece of T shape is cut, and the
stem is doubled or bent back over the transverse part. The semicircular channel
is formed in a. similar manner to that of the arrangement described above, but the
stem, starts from the front edge of the clip, at which point it is bent back, instead of
at a short distance from the edge. There is, in this case, no necessity to form cuts,

page_text: or slits in the transverse portion, and the spring will bear evenly along the complete
length. The parts are fitted together in the manner already described. To
strengthen the clip, ridges may be formed along the transverse arm, preferably
close to the edge, which will eventually prevent any danger of the parts bending,
owing to any uneven pressure to which they may be subjected. These ridges are
preferably formed, during stamping, by grooving the sheet metal.
Dated this 21st day of February 1895.
GEO. H. RAYNER,
37, Chancery Lane, London, Agent for the Applicant.
с
Improvements in Cee-spring Clips for Holding Papers and the like.
I SAMUEL HENRY CROCKER of 36 Chancery Lane, London, Engineer, 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 an improved construction of cee-spring clips, for the
purpose of attaching together or holding sheets of paper and the like, and is
intended to provide a device which can be easily applied, and which at the same
time is inexpensive to manufacture.
To
In accordance with my invention I use a cee-spring in conjunction with two
levers, against which the spring bears and between which the papers are gripped.
In spring clips of this kind as hitherto constructed, the two levers of sheet metal
are fitted in position through piercings or slots provided in the cee-spring, the
levers passing through these slots at an acute angle one with the other. The upper
edges of these slots form fulcrums on which the levers turn when they are pinched
together at their extremities, thus opening them at the front or lower ends.
secure the springs and levers together projections have been formed on one part
engaging with the other. Owing to the cutting of the spring at two parts, it is
obviously weakened. My invention employs a cee-spring in which no slots or
piercings whatever are made, and thus the full power of the spring is obtained.
The two levers which I employ are somewhat similar in action to those commonly
used, the paper being gripped between their lower edges, which are extended for
the complete length of the cee-spring, and the clip is opened by pressing the other
ends of the levers together. Instead, however, of cutting or perforating the spring
and passing the levers through the perforations, the cee-spring is made plain and a
part of the levers is fitted at the outside of the cec-spring, partially encircling it.
The levers are of T shape, but instead of the central or vertical part being made
straight it is curved or bent so as to fit closely upon the cee-spring. The remaining
portions of the levers at each end are straight, and arranged to fit inside the cee-
spring, the extremities of which bear upon the said levers. The ends of the vertical
portions of the levers are the parts used for opening the clip in the same manner as
the two levers are used in other cee-spring clips.
In order that the levers may be secured so that when pressed together at the top,
the clip will open, according to one arrangement, the transverse arm is cut so as to
form a rearwardly projecting end portion, (at each side of the central curved part)
to engage inside the cee-spring as before referred to. To fit the portions together,
the levers are slipped on from the end of the cee-spring, the said spring lying in the
curves of each lever, and bearing upon the end portions of the transverse arms.
The parts can be detached by sliding them apart but the pressure of the spring and
the formation of the levers will prevent any accidental disconnection.
If found desirable the levers and spring could be riveted together at the curved
portion of the former.

page_text: According to a modification, instead of cutting the transverse part and curving
the central part from the extremities of the cuts, a piece of T shape is cut and the
vertical part is doubled or bent back over the transverse part. The curved part is
formed in a similar manner to that of the arrangement described above, but the
central part starts from the lower edge of the transverse arm, from which it is bent
back, instead of at a short distance from the edge. There is in this case no
necessity to form cuts in the transverse portion, and the spring will bear evenly
along the complete length. The parts are fitted together in the manner already
described. To strengthen the clip, ridges may be formed along the transverse arm
preferably close to the edge, which will effectually prevent any danger of the parts
bending, owing to any uneven pressure to which they may be subjected. These
ridges are preferably formed during stamping, by grooving the sheet metal.
In order that the invention may be more clearly understood reference is had to
the accompanying sheet of drawings, in which
Fig. 1 is a front view of a clip constructed according to my invention, Fig. 2 is a
cross section of the same,
Fig. 3 is an elevation of one of the levers,
Fig. 4 shows a slightly modified construction of clip,
Fig. 5 is another modification, and Figs. 6 and 7 are respectively an elevation
and a cross section of the lever shown in Fig. 5.
A is the cee-spring which is complete, not being mutilated in any way by cuts or
incisions. This is an important point, as it enables the full strength of the spring
to be obtained, which is not the case when slots are required for the purpose of
fitting the levers in place.
The levers are of T shape somewhat similar to those at present in use with the
transverse portions B, which serve for gripping the papers at the lower edge.
According to the arrangement shown in Figs. 1 to 4, the vertical part of the
T shaped lever is marked B¹. The transverse portion of this T shaped lever has
two notches bb cut out as shown, and the part between these notches marked b¹
forming the lower part of the lever is curved to fit closely on the outer surface of
the cee-spring. The two ends of the transverse arm of the lever marked are
arranged to be enclosed within the spring the edges of which hear upon them.
Thus pressing the levers together, a fulcrum is formed at the upper end of the
curved portion and the spring is caused to open admitting the papers or other
articles to be held. To strengthen the transverse portion of the lever and prevent
it bending by the force of the spring or from other causes a longitudinal ridge or
rib 63 is formed close to its edge by bending the metal, and other strengthening
ridges are formed in the levers in the usual manner. In the arrangement shown in
Fig. 4 precisely the same construction is employed, but the spring is made of
reduced length, thus lessening the material, and the cost. This reduction in the
length of the spring can be made while still obtaining by means of this invention, a
clip of equal strength to those clips having longer springs which contain cuts or
perforations. According to the arrangement shown in Figs. 5, 6 and 7 the lever is
of somewhat similar shape but the central part instead of being formed as before
described in Figs. 1 to 4 is bent over from the lower edge of the transverse portion,
the blank being made of different shape and the notch 6 being dispensed with.
Having now particularly described and ascertained the nature of my said inven-
tion, aud in what manner the same is to be performed, I declare that what I
claim is :-
(1.) In a cee-spring clip forming the levers so as to partially encircle the spring
as described and for the purposes specified.
(2.) In a cee-spring clip, gripping levers formed with notches at each side of the
central part, and a central part bent into a curved form to partially encircle the
cee-spring, the end portions of the transverse arm engaging with the edge of
the spring, substantially as described with reference to Figs. 1, 2, 3, and 4 of the
drawings.

page_text: (3.) In a cee-spring clip the combination with a complete cee-spring, of gripping
levers formed from a blank of T shape by hending the central part over and into a
curved form, partially encircling the spring, the edge of the latter bearing upon the
transverse portion, substantially as described with reference to Figs. 5, 6, and 7 of
the accompanying drawings and for the purposes specified.
Dated this 1st day of May 1895.
GEO., H. RAYNER,
37, Chancery Lane, London, Agent for the Applicant.