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Патент USA US2120648

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June 14, 1938,
R ROSEN
'
2,120,648
LOOSE LEAF BINDER
Filed July 50, I936
inhuman“
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1, ,1
A
INVENTOR
Rub/n R0520
AQZJ. Q
ATTORNEY
'
2,120.,t4t
Patented June 14, 1938
UNITED STAES 'ATENT QFFE
'
2,120,648
’
LOOSE LEAF BINDER
Rubin Rosen, Brooklyn, N. Y.
Application July 30, 1936, Serial No. 93,345
(Cl. 129-13)
The invention relates to loose-leaf binders and threaded aperture in the leaf-engaging member
2 Claims.
more particularly to binders of the post type.
With‘binders of this type now in common use
the posts are secured to one of the leaf-engaging
5 members and the other leaf-engaging member
is locked to the posts by a more or less compli
cated mechanism involving the use of a key to
‘release the movable leaf-engaging member for
the insertion or removal of sheets from the book.
10 It thus becomes a time consuming operation to
‘remove or insert sheets and should the key be
come lost or misplaced it is impossible for the
book to function for the purpose for which it was
designed.
15
The principal object of the present invention is
to provide a loose-leaf post binder to overcome
the foregoing serious objections. The binder is
of extreme simplicity and is therefore economical
to manufacture and can be operated with the
20 greatest of ease when it is desired to remove or
insert sheets.
Other objects and advantages will become ap
parent as this speci?cation proceeds. Referring
to the drawing forming a part thereof and in
25 which one embodiment of the invention is illus
trated.
'
Fig. 1 is an end elevation with parts broken out
and parts in section, the binder being in its closed
position;
30
Fig. 2 is a detail sectional view taken in a plane
parallel to that of Fig. 1, on a larger scale and
showing the parts in a position they would as
sume when inserting or removing sheets;
Fig. 3 is a fragmentary detail sectional view
35 taken at right angles to Fig. 2;
‘Figs. 4 and 5 are detail cross sectional views
engaging member 20 to its cover 22. This leaf
engaging member 20 carries a telescoping sleeve
23. Secured to the upper end of the sleeve 23
by a set-screw 24 is the operating knob 25. The
sleeve 23 has a washer or ?ange 26 and the leaf
engaging member 20 is con?ned between the
?ange 2G and the knob 25, it being understood
that the sleeve may be freely rotated in rela
3D
tion to the leaf-engaging member 20.
The closed end of the lower part of the sleeve 23
forms what might be termed a nut, see Figs. 5
and 6. The thread 21 of this nut is interrupted
by two out out portions 28. These cut out por
tions 28 are of substantially the same cross-sec
tional area as the tongues l9 formed on the head
boss 14 are a loose thread.
The telescoping sleeve 23 and the stationary
sleeve I3 thus provide a post. While the post
has been spoken of heretofore as in the singular
it is to be understood that as many of such posts
Fig. '7 is a detail perspective view of one of the
'
Fig. 8 is a perspective view of an alternate con
struction.
Referring again to said drawing the reference
numeral l0 designates the lower or what might
be termed the stationary leaf-engaging member.
55
The movable leaf-engaging member 20 has the 20
customary ?exible portion 2| securing the leaf
cover l2 in a conventional manner well known in
ber; and
‘
Figs. 4 and 7.
the art.
Suitably mounted in the leaf-engaging member
In is a stationary sleeve 13. As illustrated the
sleeve I3 is provided with a threaded boss M on
its lower end and this boss engages an interiorly
of the lower part of the upper telescoping mem
parts.
5O
screw l5 are slabbed off or ?attened as indicated
at El and threaded or otherwise secured to the
upper end of the screw “5 is a head l8. The
under side of the head I8 is provided with a boss
having its sides slabbed off or ?attened to form
lugs or tongues l9 as particularly illustrated in
This member H3 is ?exibly connected at II to its
Fig. 6 is a fragmentary detail perspective view
4
the only time it is necessary to remove the sleeve
E3 is when one desires to insert additional length
ening members to accommodate a large number
of sheets.
A stationary screw I5 is mounted in axial align
ment with the sleeve l3. As shown the lower end
of this screw is secured in the boss [4 by a pin I6.
Obviously the means for securing the screw H5 in
position may be widely varied. The sides of the
l8. A spring 30 is interposed between the head
IB and the top of the sleeve 23.
When it is desired to remove the stationary
sleeve l3 for purposes heretofore mentioned the
openings 28 are brought into engagement with
the tongues'l9 and the knob 25 may then be
rotated and the threaded boss l4 thus easily re
moved from its socket in the leaf-engaging mem
ber Iii. In order to insure against unscrewing the
head l8 off the end of the screw l5 when the
stationary sleeve 1 3 is being removed the threads
in the head l8 are what is termed a tight thread
and those in the cover In for the reception of the
taken on the lines 4-4 and 5—-5 respectively of
Fig. 2;
40
ID. Means are provided and will later be de
scribed for removing the sleeve I3. Practically
50
as desired may be utilized in a loose-leaf binder. 55
2
In
tion
and
into
2,120,648
use the binder normally occupies the posi
of Fig. 1, the spring 30 being compressed
the telescoping sleeve 23 being slid down
the stationary sleeve l3. Naturally the
amount of the compression of the spring and the
relation of position between the sleeves will de
pend upon the number of sheets in the binder.
In the position of Fig. 1 the threaded portions
of the stud l5 will be engaging the interrupted
10 threads 2'! of the telescoping sleeve nut. The
parts are thus locked in position and it is im
possible to remove any sheets from the binder.
When it is desired to remove sheets or add
sheets the only operation necessary is to turn the
15 knobs 25 approximately 90°. This disengages the
interrupted threads 2'! from the threaded por
tions of the stud I5 and the spring 30 will in
stantly raise the leaf-engaging member 20 to
approximately the position of Fig. 2 or higher
20
making the sheets and binding posts readily
accessible. After the new sheets have been added
or some old sheets removed the leaf-engaging
member 20 is pushed downwardly and the knobs
25 are again turned approximately 90° and the
25 parts are all locked in position. The sheets 3|
may be notched in the conventional manner as
indicated at 32 to permit of their easy removal
or insertion.
Referring to Fig. 8 the screw [5 is provided with
30 longitudinal stops 35 located diametrically oppo
site each other at the junctures of the threaded
portions and ?attened faces. When the parts
are in the position of Figs. 2 and 5 the leaf~en
gaging members as heretofore explained are free
35 to move away from each other and when it is
desired to lock the leaf-engaging members the
knob 25 is rotated approximately 90°. The stops
35 will prevent further movement of the nut .at
the end of the sleeve 23 in relation to the screw I5
and will thus insure against inadvertently turn
ing the knob 25 too much and releasing the parts.
I claim:
1. A loose-leaf binder having in combination a
stationary leaf-engaging member, a sleeve carried
45 by said member, a movable leaf-engaging mem
ber, a rotatable sleeve carried by said movable
leaf-engaging member, said sleeve carried by said
movable leaf-engaging member being adapted to
telescope within the sleeve carried by said sta
50 tionary leaf-engaging member, a knob secured to
dinal stops on said stud, said stops being lo
cated diametrically opposite each other at the
juncture of the threaded portions and flattened
faces, a nut formed in the sleeve carried by said
movable leaf-engaging member, said nut hav
ing cut out portions so that the threads thereof
are interrupted, and spring means interposed be
tween said stud and the upper part of the sleeve
carried by said movable leaf-engaging member,
said spring means normally urging said leaf-en» 10
gaging members away from each other, the ar
rangement being such that when the threaded
portions of said stud align with the interrupted
portions of the thread of said nut the spring
means Will force the leaf-engaging members 15
away from each other and when the sleeve is
rotated by said knob the threaded portions of
said stud will engage the threads of said nut to
lock the leaf-engaging members. from movement
in relation to each other.
20
2. A loose-leaf binder having in combination a
stationary leaf-engaging member, a sleeve car
ried by said member, a movable leaf-engaging
member, a rotatable sleeve carried bysaid movable
leaf-engaging member, said sleeve carried by said 25
movable leaf-engaging member being adapted "
to telescope within the sleeve carried by said
stationary leaf-engaging member, a knob secured
to the outer end of the sleeve carried by said
movable leaf-engaging member for rotating said 30
sleeve,-a stud secured to and in axial alignment
with the sleeve carried by said stationary leaf
engaging member, said stud being threaded and
having slabbed oif or flattened sides, a nut formed
in the sleeve carried by said movable leaf-en
gaging member, said nut having cut out por
35
tions so that the threads thereof are interrupted,
a head" secured to the upper end of said stud,
lugs formed on the under side of said head, said
lugs being adapted to engage the cut out por 40
tion of said nut so as to permit of said stud
being rotated, and spring means interposed be
tween the head of said stud and the upper part of
the sleeve carried by said movable leaf-engaging
member, said spring means normally urging said
leaf-engaging members away from each other,
the arrangement being such that when the
threaded portions of said stud align with the in
terrupted portions of the thread of said nut the
spring means will force the leaf-engaging mem
bers away from each other and when the sleeve
the outer end of the sleeve carried by said mov
able leaf-engaging member for rotating said is rotated by said knob the threaded portions of
sleeve, a stud secured to and in axial alignment. said stud will engage the thread of said nut to
lock the leaf—engaging members from move
with the sleeve carried by said stationary leaf
55 engaging member, said stud being threaded and ment in relation to each other.
having slabbed off or flattened sides, longitu
RUBIN ROSEN.
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