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Патент USA US2116989

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May 30, E938.
P. o. UNGER ET AL
2,116,989
LOOSE LEAF BINDER
Filed Nov. 26, 1934
A TTORNE Y.
Patented May 10, 1938
>
r
2,116,989“
UNITED STATES PATENT oFFic'E
Paul 0. Unger, Glen Ellyn, and Fred D. Wedge, _
Lombard, 111., assignors to Wilson-Jones Com
pany, Chicago, 111., a corporationof Massa
‘
chusetts
,
‘
Application November 26, 1934, Serial No."754,'186
2 Claims.
(01. 129-4)
This invention relates to a loose leaf binder, . rality of prong members 8.
‘
The prong members
and more particularly to an arch binder in which
folded sheets or groups of sheets are retained by
means of wires positioned between the folded
meet at their outer ends .when the toggle plates
are in closed position to form arches. A cover
plate 9 is provided with downwardly bent edges
rality
edges of arches.
the sheetsThis
andtype
the ofunderside
binder is of
exempli—
a plu?ed by the patents to McCleary Nos. 1,843,575
and 1,843,608, both issued February 2, 1932.
Binders of this type have proved to be very
successful in connection with pamphlets or groups
back.
ID adapted
The to
cover
embrace
plate 9the
is notched
edges 1 along
of theits
spring
lon
gitudinal edges, as indicated at H, to allow the
prong members 8 to project therethrough. The
arc of the prong members has substantially the
same axis and is parallel to that of the cover 10
of folded sheets but the ?eld of use therefor has
plate when in closed position.
I
been limited because the binder is not adapted to
receive single unfolded sheets. It is often desirable to insert single unfolded index or correction
5 sheets in a binder containing a plurality of pamphlets or groups of folded sheets, but heretofore
no binder of this type has been available in which
such insertions can be made without necessitate
ing so much effort as to make the binder imprac—
0 tical for the intended purpose.
It is an object of this invention .to provide a
loose leaf binder adapted to retain a plurality of
sheets either folded or unfolded. It is a further
object of this invention to provide a loose leaf
25 binder particularly adapted to retain groups of
folded sheets with means for permitting rap-id
and easy insertion of single unfolded sheets. It
is a further object of this invention to provide a
binder of this type with a convenient accessible
nO magazine for carrying extra sheet retaining wires
that will not interfere with the normal operation
of the binder, and will not detract from the appearance of the binder. Other objects of this
inventionwill become apparent upon reading the
11,5 following description taken in conjunction with
the accompanying drawing, in which
Figure 1 is a perspective view of a loose leaf
binder embodying the invention with parts broken
away to facilitate illustration of the structure.
ie
Figure 2 is a fragmentary View, partly in plan
and partly in section, of the binder shown in Fig-
Each folded sheet I2 is provided with a plu
rality of notches I3 adapted to straddle the
arches 8. A wire I4 is positioned inside the
folded edge of the sheet and under the arches to 15
retain the folded sheet in the binder just as in
conventional binders of this type. Unfolded
sheets l5 are punched and inserted on the arches
just as in the case of conventional ring books.
Of course, the folded sheets with the wires posi- 20
tioned adjacent the folded edge may also be in
serted on the arches when they are in open
position.
Apair of triggers I6 is provided at opposite ends
of the metal to move the toggle plates to open and 25
closed position. The speci?c structure of the
trigger constitutes the subject matter of a sepa
rate application, Serial No. 750,446 ?led October
29, 1934 in the name of Paul O. Unger, which is
sued as Patent No. 2,056,812 on October 6, 1936. 30
Accordingly, it is deemed to be unnecessary to de
scribe the trigger structure in detail in the present
application. Any trigger capable of moving the
toggle plates 6 to open and closed position may be
used in the present structure. However, the trig
ger must extend above the cover plate at least as
much as the arch members, in order to prevent
the accidental displacement of the sheet retaining
wires. The preferred embodiment of our inven
tion is shown with a trigger at each end. How- 40
ever, it is obvious that a single trigger may be
ure 1; and
Figure 3 is a cross sectional view taken along
the line III-III of Figure 2.
45
In the drawing, the reference numerals 2, 3 and
substituted, and one end of the metal may be
provided with any conventional closure that ex
tends above the cover plate enough to serve as
a stop member for the ends of the sheet retaining 45
wires.
A tubular member I‘! is secured to the cover
member 4 near its outer edge to provide a maga
zine for carrying extra sheet retaining wires i4.
The magazine may be made of any suitable ma- 50
terial. One end of the magazine is threaded,
4 respectively indicate a back member and a pair
of cover members integral with the back member
or secured to opposite edges thereof. A metal
spring back 5 is secured to the back member 2 in
50 any conventional manner. Two toggle plates 6
are positioned in the spring back in side by side
relation with their outer longitudinal edges restrained from outward movement by the upturned edges 1 of the spring back.
55
Each toggle plate 6 has secured thereto a plu-
as indicated at I8, Figure 2, and is provided with
a similarly threaded closure member I9. The
outer end 20 of the closure member I9 is prefer
ably knurled to facilitate turning thereof. Al- 55
2
2,116,989
though the magazine may be secured to the cover
member 4 in any desired manner, it is preferred
to enclose it in a strip of fabric 2| and to secure
the ends 22 of the fabric strip under the lining
member 23. If the cover member is not lined,
the fabric strip may be sewed or cemented direct
1y to the cover member. It will readily be seen
from an inspection of Figure 3, that the maga
1. In a loose leaf binder, a plurality of sec
tional arch members, a plurality of folded sheets
notched at their folded edges to straddle said
arch members, a plurality of wires positioned
within the folded edges of said sheets and under
said arches to retain said folded sheets in the
binder, and means at each end of said binder to
zine carrying the spare Wires cannot interfere prevent accidental longitudinal displacement of
said wires, said last mentioned means being op
10 with the normal operation of the binder.
Although we have described a preferred em I erable to open said sectional arch members.
bodiment of our invention in detail, it will be un
derstood that the description thereof is illus
trative, rather than restrictive, as many details
15 may be modi?ed or changed without departing
from the spirit or scope of our invention. Accord
ingly, we do not desire to be restricted to the
exact construction described, except as limited by
the appended claims.
We claim:
20
2. In a loose leaf binder, a plurality of sectional
arch members, a plurality of wires cooperating
with said arch members to retain folded sheets in
the binder, and a pair of triggers at opposite ends
of the binder, said triggers being adapted to pre
vent accidental longitudinal displacement of said
wires and operable to open said sectional arch
members.
PAUL O. UNGER.
FRED D. WEDGE.
24
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