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Патент USA US2107869

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Feb. 8, 1938.
Filed April 19
2 Sheets-Sheet l
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Feb. 8, 1938.
Filed April 19
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Patented lFeb. 8, 1938
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Arthur W. McClure, Syracuse, N. Y., assi'gnor to
McMillan Book Company, Syracuse, N. Y., a
corporation of New York
` Application yApril 19, 1934, serial No. 721,320
z claims.
(o1. 12s-24) Y
y This` invention relates tov improvements inr a
loose leaf binder in which 'straight ,leaf-impaling
vosts are releasably secured at Iboth ends to ra
respective side of the binder.
f '
Figure‘l is a detail longitudinal sectional view
taken substantially in the plane of the line 4-4,
Y Figure 2.
Figure 5 is a fragmentary perspective view of
5 i "Thermain object of the invention is to produce . the pintle slide with portions thereof breken away Cl
, Ya'floose leaf binder of the aboveA mentioned .classr and illustrating the laten member fOr releesably
V.with improved means for automatically securing maintaining the pintle slide in the inoperative
the leaf-impaling posts in the hinder, as thcf Position.
binder is being closed,
Figure 6 is a detail transverse sectional view
A more specific object »of the invention resides
_ inproviding a loose leaf binder with simplycon' structed means set into operation by the closing
teken 0n line 5---6, Figure 4l0
»The loose leaf binder as illustrated in the draw
ings comprises primarily e back member l, ilWO
‘ Y l of a cover, for automatically and accurately alin-
Cover members 2 and' 3, and e Deir 0f leef-impel~
ving the ends of the impalmg posts with the post
i retaining rrieans',` whereby the retainingv means
may readily moveinto'holding engagement with
» tneposts,
" y
ing post retaining members 4, positioned one at
either longitudinal side of the back member ad- l5
ieeent a respective Cover. The Covers 2 and 3
vin this instance, are pivotally connected to the
`Incarrying out the above mentioned objects,
beek member. >The beek member 1| may be 00n
«I `have utilized a loose leaf binder of well known , Siìl‘ueiìed in any Well knOWn manner and in this
v laofcon‘struction and which comprises a plurality of instance, is made concavo-convex in cross sec~ 20
1 .straight leaf-impaling posts and ’post retaining
tion, whilethe means for pivotally securing the
~ means, including a pair of housings secured one
covers 2 and 3 to the back member >consists of a
at a respective side of the binder, said housings
hinge plate 5. Which 1S formed concave-@DVSX
"f’having- alined apertures in theowalls thereof for
Y aerreceiving the ends of the posts therethrough. A
in cross section and is secured to the concave or
inner Side 0f the back member by any Suitable 25
Y pintle slide is mounted in each housing for re-
Ineens SuCh aS riVetS 5, 0r their equivalen@
_ leasably engaging the respective ends of the posts
to secure the posts to the housing and, therefore,
hinge Diete 5 has eeen vlOngitul‘ìinàl edge thereof
extended a short distance beyond the correspond
to the binder.
ing edge of the back member! and formed with
30Y „fflfîurthenv I have provided suchv a loose leaf
@plurality 0f longitudinally Spaeed hinge eye- 30
`binder with means adapted as the back and cover
‘ ' members move to the closed position, >to first
g Vautomatically eiîect the alinement of the loose Vor
lets 1.
The covers 2 and 3 are constructed preferably
fI‘OIn Cardboard, 01’ Similar material, in lille 00n
free ends'rof the leaf-impaling posts with respec' 35 tive openingsin the adjacent pintle slide housing,vr
y, ' andthen to cause said ends of the posts to enter
ventional manner and in this instance, each cover
has a hinge strap 8 positioned therein interme» 35
d_iate the inner and outer surfaces at the inner
_the openingsrand aline with the pintles of the
lOngitudinal edge thel’eOf and Which may be se~
„ slide, after'vvhich the pintle slide is'automatically
vcaused/to operatively engage the posts for secur-
Cured t0 the COVel‘ in any Suitable manner eS by
rivets 9. The hinge straps 8 are secured to the
»40 ing vsaid posts'to the housing.
respective ends of the hinge plate 5 by means of 40
, , . ` Other objects and advantages relate to the de-
l f 4 tails ofthe structure, and to the form and rela-
pintle I‘OdS l0.
The post retaining members 4 as hereinbefore
"tion of the parts thereof, all as’will more fully
stated-are positionedadjaeent a'reSpeCtiVe l0ngi
i , appearV fromÍthefolloWing description taken in
tudinal side vor" the back member andare ar
45 connectionV Y.lilith-the accompanying drawings, in
ranged, when the covers are in the closed posi- 45
Y ¿Which'y y,
tion, to lie just inside of the inner hinged edge
",Figure 1' is a perspective View of a loose leaf Aof a corresponding cover.
- *binder >embodying 'the various -features of f #this
v invention.
` ‘
» vi‘ewthroughthe back portion of the binder taken
" substantially on line 2-2,~Figure 1.
- >Figure?, isa longitudinal >sectionalvietv taken
These retaining mem
bers are substantially identical in construction, so
that a description of onewill'answer for a com-A
50 »f Figure 2 is an enlarged transverse sectional
prehensive understanding of them both.
Each of the retaining members 4 consists of a
tubular housing I2 formed in this instance of
' sheet'metal bent substantially U-shape to form
online 3-«3,"Figure,2, and illustrating the cen-
a chamber I3 with the outer portion of the legs
trai portion' 0fV the binder‘broken away.. v '
thereof extended inwardly in superposed relation
- '
adjacent the inner face of the hinge plate 5, and
provided said latch with an outwardly projecting
are secured to each other and to the plate 5 by
pin 29 which extends »outwardly through a suit
any suitable means, as by spot welding. The
housings I2 have portions of the inner edges
thereof cut away to form alined longitudinally
spaced openings i4, each adapted to receive there
able aperture provided in the wall of the housing
I2.y This pin is adaptedwhen the latch is in its
operative position in holding engagement with
the slide I8 to extend outwardly beyond the inner
face of the housing I2 in the path of movement
through an end of a respective post I5.
The posts I5 in this instance are rectangular
in cross section and have each end thereof pro
vided with an opening I6 extending transversely
therethrough. These openings are adapted,
closed position, the pin or Vmember 2e will be en 10
gaged by the inner edge of the cover and moved
when the posts are in the leaf holding position
inwardly thereby sufñciently to bring the inner
with the ends thereof positioned in a respective
end of the latch '24 out of holding engagement
opening I4 of the housing, to register with the
corresponding chamber I3 of the housing and
adapted to receive a respective pintle I‘I provided
with the slide I8.
on a pintle slide I8 mounted in each housing I2.
'I‘he pintle slide I8 in this instance, is a rela
tively long thin bar provided with recesses I9 in
20 the longitudinal edge thereof adjacent the open
ings IS, and has pintles I'I' secured thereto to
project.y intorespective openings I9 and adapted,
when the slide is in its innermost position, to
extend across corresponding openings I4 of the
of the inner adjacent longitudinal edge of a cover ,
2 or 3 so that when the cover is moved to the
housing for engaging respective posts I5.
The slide i8 is normally urged inwardly to its
innermost position with the pintles extending
across the openings I5 by means of a coil spring
20, which has one end thereof secured `to the
30 pintle slide and the other end connected with
the housing I2, as shown in Figure 4. The slide
I8 may be manually moved outwardly against the
action of the spring 2U by any suitable means
such as a finger piece or nob 2I secured to the
35 outer end of an extension 22 connected with one
end of the slide I8, and which projects outwardly
through the chamber I3. The finger piece 2l is
so mounted on the extension 22 that the slide
will be maintained in its innermost position
40 against the action of the spring 20 by the engage
ment thereof with the adjacent end of the hous
ing I2, as illustrated in Figure 4.
Means is also provided for releasably main
taining the pintle slide I8 in its outermost inop
45 erative position with the pintles I 1 positioned
adjacent one side of the corresponding openings
I4 against the action of the spring 20. This
holding means consists, in this instance, of a
latch 24 positioned in the chamber I3 near the
50 inner end of the pintle slide I8. The latch 24
is, as shown in Figure 4, pivotally connected at
one end by a pin 25 to the housing I2. The latch
24 extends inwardly from the pivot 25 and has
the inner end thereof adapted to move into the
path of movement of the pintle slide and engage
the inner end thereof, when the said slide is in
its outermost or inoperative position, for holding
the slide in said inoperative position against the
action of the spring 20. The inner end of the
latch 24 is normally urged toward the outer or
rounded wall of the chamber i3 into the path
of movement of the slide I8 by a coil spring 26
mounted in the recess 21, provided in the latch
24 intermediate the pivot 25 and the inner end
65 thereof, said spring having one end engaging the
inner side wall of said chamber. The inner end
of the latch 24 is relatively narrow in cross sec
tion and is adapted as illustrated in Figure 4,
when the pintle slide I8 is in its innermost opera
70 tive position, to extend along the inner edge of
the slide between the said slide and the inner
edge of the chamber I3.
In order that the latch 24 may be moved in
wardly against the action of the spring 26 out of
75 the path of movement of the slide I8, I have
In order that the covers may efñcaciously effect
thev release of the latch 24, I have provided each
cover with a reinforcing plate 3@ which, in this
instance, is L-shaped in cross section. Each
plate has one leg thereof positioned adjacent the
inner face of the respective cover while the other 20
or shorter leg 33’ of the plate extends outwardly
along the inner longitudinal edge of the cover as
illustrated in Figures 2 and 6. 'Ihe plates 3% may
be secured to the respective cover in any suitable
manner as by the rivets 9. These reinforcing
plates 3l) extend longitudinally of the covers from
within a short distance of one end to within a
short distance of the otherend, and are adapted,
when the covers are being moved to the closed
position, to engage the adjacent ends of the posts
I5 and move said posts into the corresponding
openings I4 of the housing I2, and bring the
openings I6 of the posts into alinement with the
pintles I'I.
It will now be observed that when one end
of the posts I5 is released by movement of the
corresponding pintles I1 out of engagement
therewith, the back member I and the cover con
nected therewith adjacent the released end of
the posts, may swing outwardly about the pintle
hinge AIii at the opposite side of the binder away
from the posts and leaves mounted on said posts.
These leaves as 33 are mounted on the'posts I5
in the conventional manner and for this pur
pose they are provided with the customary open
ings arranged in longitudinal spaced relation
along one edge for receiving the posts there
When the posts are connected at only one end
to the back member through the medium of the
retaining member 4, the posts are maintained in
their upright position by theleaves 33.
fore due to the ease in which the leaves may move
relative to each other, and assume an askew
position, the free ends of the posts very often
become mov-ed out of alinement so that when the
detached retaining member is brought forwardly,
as the back I is moved to the upright position,
the free ends of the posts will be out of aline 60
ment with the openings It in the housing I2. It
is, therefore, desirous and quite necessary when
automatically securing the posts in the binder,
that some means be provided for again bringing
the free ends of the posts into position to readily enter the housing openings as the binder is being
closed. For this purpose, I have provided the
back member I with an alining means which
consists of an abutting plate 35 secured at the
inner concave side of a hinge plate 5 in spaced 70
relation thereto by means'of three shouldered
studs 36.
These studs are secured to the back
member by means of respective supporting strips
31 preferably composed of metal and which have
the ends thereof secured by spot Welding, or other
` means, to the adjacent portion of theV legs ofthe , form and relation ofthe parts thereof may readily
housings I2. p
~ I
be made without departing from the spirit of this
-The abutting plate 35 is rectangular‘in plan inventiony as set forth in the appended claims.
view andr extends longitudinally of the‘back mem- Á
yber between the retaining housings I2 in such
relation to said housings that when the posts are
ï secured at both ends to the housings I2, the inner
vedge of the leaves 33 mounted on the posts will
abut'pagainst the abutting plate 35. Furthermore,
the plate 35 is provided at each end with out
'jwar'dly projecting Vportions which extend at sub
I claim:
l. In a loose leaf binder, a binder covering com
prising a back member and a pair of covers hinged
with respect to the back member, a plurality of
impaling posts for retaining a quantity of paper,
said posts being connected at one end to the bind
er covering, means for releasably securing the 10
~ other or free end of the posts to the binder cover
stantially right angles to said plate. across the n ing including a housing secured to the binder
adjacent side of the leaves 33. These portions 39 covering having openings for receiving the free
*are spaced apart a distance substantially equal ends of the posts, a slide in the housing movable
15 to the-width of said leaves to form guide members
into and out of holding engagement with the
adapted to engage the sides of the leaves adia
posts, means secured to the back member and
Ycent said inner edges and each guide portion has engageable with the rear and side edges of the
the outer free side thereof bent outwardly as at sheetsv of paper as the back and corresponding
139i to enable the ready engagement thereof with ~ coverr are being moved toward a position to re
20 the leaves.
assemble the binder, said means serving to
'It V_may now be readily understood that when l'straighten up the stack of paper and thereby
" ' ’the binder is in the open position with one end of
bring the posts into approximate alinement,
_ the posts released, the sides of the leaves will first»
means secured to the binder covering for moving
the posts into the openings in said housing as one
'f be engaged by the guide members 39, as the back
25 member I is swung forwardly about the axis of the
L pintle rod VII) at the attached side of the binder
, toward the leaves and thereby bring the sides of
the leaves into alinement with each other. As the
back approaches the normal upright position, the
cover is moved toward a closed position, and `
means automatically set into operation when the
cover is closed for bringing the slide into opera
tive holding engagement with the posts.
2. In a loose leaf binder, a binder covering com
rear edge of the leaves will be engaged by the
prising a back member, a pair of hinges secured to 30
f Yabutting plater 35 and be alined thereby, with the the longitudinal edges of the back member and a
Yresult'that as the leaves are thus brought into pair of covers secured to said hinges, a. plurality of
> i symmetrical relation one with another, the posts
impaling posts for retaining a quantity of paper,
I5 will Abe moved thereby into such apositionithat _ said posts being connected at the same ends to the
I ,the free ends thereof will.y be in alinement with ' fbinder covering, a plate, secured to the inner side
the openings I4 in the housing I2, as said'housing of the back member and having portions there
approaches the free ends of the posts. of extendingperpendicular to the back member
. » `As the back member I approaches its normal
and adapted to engage the side edges of the stack
„upright position, the swinging of the cover adja
of paper, a post aligning member secured to the
cent the free» ends of the posts about the pintle binder covering, a housing carried by the binder
I0 yfrom vthe open to the closed position will cause .covering having openings therein for the recep
the inner longitudinal edge of the cover,for more . tion of the other ends of the posts, a slide mounted
specifically, the leg 30' of the reinforcing plate 30,
to engage the upper or free ends of the posts, as
'illustrated by broken lines in Figure 2, and force
said ends yof the posts into the respective openings
Illvof .the'housing I2 to bring the openings I5`of
the 4posts into alinement with the pintles I'I. As
the cover 2 lapproachesthev closed position, the
pin 29 of the latch M_'Will be engaged by the leg
¿30'v Vofthe plate 30 and automatically move the
in the housing having pintles for engaging said
other ends of the posts, said slide being manually
movable to disengage the pintles from the ends
l of the posts, spring means for normally urging the
said slide in a direction such that the pintles en
gage said posts, retaining means for holding said
vslide'so that the pintles are retained out of post
engaging position against the action of said spring,
and meansk for automatically tripping said re
latch out of holding engagement with the pintle
taining means when the cover is thrown to a
" slide mana permit said snde to be moved inward
>1y by the spring 20 so that the pintles I1 will come
' into Vholding engagement with the free ends of
closed position during assembly of the binder to
the posts I5 and secure said posts to the housing
i. ' -I2 in the leaf holding position.
f Although I have shown and particularly de
scribed thepreferred embodiment of my inven
tion, I do not wish to be limited to the exact con
Y struction shown as various changes both in the
enable the spring to move the slide and pintles
into post engaging position, said plate and said
post aligning member during the assembly of the
binder co-,operating to straighten up the sheets
of paper and the posts to enable such automatic
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