close

Вход

Забыли?

вход по аккаунту

?

Патент USA US2109241

код для вставки
Feb. 22, 1938.
J. HA TALMAGE `
2,1o9,241
LOOSE LEAF BINDER_
Filed sept. 16, 1935
N
H
,
BY
Ø
o
wA E
T. RNDNT YR
T.VM
.IH
ANO
OER
j
OmIH
E
Patentecl Feb. 22, 1938
UNITED sTATEs
PATENT OFFICE ,
:2,109341
LOOSE vLEAF BINDER
John Howard Talmage, Chicago, Ill., 'assignor to
Wilson-Jones Company, Chicago, Ill., a. corpo
ration of Massachusetts
,
Application 'September 16, 1935,' Serial No. 40,707
6 Claims.
This invention relates to loose leaf binders
and more particularly to equalizer sheets for use
in connection with so-called “visible” binders
in which a plurality of sheets of less length than
5 the binder are arranged in overlapped relation
ship so that one edge of each sheet is exposed
a predetermined distance. In loose leaf binders
of this type the total thickness of the sheet con
tents varies from a maximum at the center to
10 a minimum at each end of the binder. This
variation in thickness of sheetV contents renders
it extremely di?icult to write on the various
sheets while they are in the binder. -
It is an object of this invention to provide
15 means for equalizing the total thickness of the
sheet contents of the binder from end to end
so that an even writing surface is maintained. It
is a further object of this invention to provide
equalizing means that can be rearranged to vary
20 the equalizing effect in accordance with the needs
of the binder at any time. It is a further object
of this invention to provide equalizing means that
will not substantially increase the total thickness
of the contents of the binder and will preserve
' the flexibility of the sheet contents of the binder.
It is a further object of this invention to provide
equalizer sheets that are inexpensive to manu
facture and are e?icient in use.
It is a further
object of this invention to provide equalizer
sheets that Will last inde?nitely and will not lose
their equalizing effect even after long usage.
Other objects of this invention will become ap
parent upon reading the following description,
taken in conjunction with the accompanying
drawing, in which
Figure 1 is a fragmentary perspective view of
a loose leaf binder with equalizer sheets posi
tioned therein;
_
Figure 2 is a fragmentary perspective view of
40 a plurality of equalizer sheets arranged in a dif
ferent relationship from Vthat shown in the equal
izer sheets in Figure 1; and
Figure 3 is a fragmentary plan view of an
equalizer sheet constructed in accordance with
45 the present invention.
In the drawing, the reference numeral 2 indi
cates a conventional loose leaf binder having a
back member 3 and a pair of cover members 4.
A ring metal 5 provided with a plurality of di
50 vided rings 6 is secured to the back member 3
in any suitable manner. If desired, a plurality
of prong members may be substituted for the
divided rings 6.
A plurality of sheets 'I is impaled on the rings
55 6. The sheets 1 are divided into banlss Or series
(Cl. 129-1)
by means of equalizer sheets i8 with one equalizer
>sheet between each bank -of sheets. Each bank
of sheets comprises a plurality of `sheets of less
length than the length of the binder arranged
in overlapped relationship. The overlapping vof UI
the sheets causes each bank to vary in thickness
from a maximum -at the central portion to a min
imum at each end. The degree of variation in
thickness Will depend upon the length of the
sheets and the amount of overlap. The varia
tion in thickness of any bank of sheets will in
crease with increase in length of the individual
sheets and with decrease in the amount of over- '
lap.
The equalizer sheets '-8 are identical sov that `
only one need be described. "One' 'edge of the
sheet 8 is provided with a plurality of apertures
9 of a size suitable for allowing impalement of
the sheet on the divided rings 6. The sheet is
provided with more apertures than the binder
has rings or prongs so that it may be used in
loose leaf binders in which one set of prongs may
0
be shifted relative to the other set. Binders of
this type are well known and one is fully de
scribed in United States Letters Patent No.
1,986,161 granted to Paul O. Unger January 1,
1935. Both ends of the sheet are preferably rein
forced along the apertured edge by means of a
pair of strips IO of celluloid or similar material
each of which is folded over the inner edge to
cover both surfaces of the sheet adjacent the
apertures.
A plurality of strips ll of fabric, celluloid, pa
per or similar material of suitable thickness is
secured to each end of the equalizer sheet 8. 3
Each strip ll is folded over the endv of the sheet
8 with a relatively short portion |2 on one side
of the sheet and a longer portion |3 on the other
side. Since the sheets 8 are identical, the strips
Il of successive sheets will be superimposed on
each other When the sheets are positioned in the
binder as indicated in Figure 1. The equalizer
sheets will add only the thickness of the sheets
8 to the medial portion of the sheets 'I where the
thickness of the sheet contents 'l is at its maxi
mum. At the ends of the binder, where the
thickness of the sheet contents 1 is at its mini
mum, the equalizer sheets add a double thickness
of the strip II as 'well as the thickness of the
sheet 8. In the intermediate area between the
end of the portion |2 and the medial portion of
the sheet contents, the equalizer sheet adds its
own thickness and one thickness of the strip | I.
The strips II are spaced apart a distance
slightly greater than the width of the strips, and 55
2
2,1o9,241
the strips at one end are arranged alternately
with respect to the strips at the other end of
the equalizer sheet. The spacing between adja
cent strips permits the sheets to be ?exed in
turning, and also permits the strips of one sheet
to ?t between the strips of another sheet when
one sheet is tumbled, or turned end for end, as
illustrated in Figure 2. The total effective thick
ness of any number of equalizer sheets may be
10 varied by predetermined degrees from a maxi
mum when the equalizer sheets are positioned as
shown in Figure 1, to a minimum when every
other sheet is tumbled, as indicated in Figure 2.
It is preferred to position the longer portions
2. An equalizer sheet for loose leaf binders
having its top and bottom edges each provided
with a series of equalizing strips adhered to both
sides thereof, each of said equalizing strips hav
ing a long portion on one side of the sheet and
a short portion on the other side of the sheet.
3. An equalizer sheet for loose leaf binders
having its top and bottom edges each provided
with a series of equalizing strips, the strips at one
edgehaving a long portion' adhered to one side 10
and a short portion adhered to the other side,
and the strips at the opposite edge being arranged ,
_in reVerSe manner.
4. An equalizer sheet for loose leaf binders
15 |3 of the strip || on one surface of the sheet'B
havingra plurality of strips adhered to the top 15
at one end of the sheet, and on the' opposite , and bottomedges of said sheet in spaced rela
surface at the other end of the sheet. With this tionship, said strips being narrower than the
arrangement the sheets 8 willralways' show' uni-l , spaces intervening between said strips, and the
form lengths of strip as the sheets of the binder strips at either edge of said sheet being aligned
20 are turned, regardless of whether the equalizer
with the spaces at the other edge of the sheet.
20
sheets have been tumbled or not.
.
i,
,
5. An equalizer sheet for loose leaf binders
Although I have described a preferred em
having a plurality of equalizing strips adhered
bodiment of my invention in considerable detail, to both sides of said sheet adjacent one edge
2,5
it will be understood that the description there
of is illustrative, rather than restrictive, as many
details may be modified or changed without de
parting from the spirit or scope of my inven
tion. Accordingly, I do not desire to be restricted
to the exact Construction described, except as
30
limited by the appended claims.
'I
35
claim:
,
-
1
1. An equalizer sheet for loose leaf binders hav
ing its top and bottom edges each provided With
a series of strips adhered thereto, the series of
strips at one edge being laterally spaced alter
nately of the strips at the opposite edge.
thereof, each of said 'strips being folded at a
point spaced from the center thereof Whereby
the portions of said strips adhered to opposite
sides of said sheet are of unequal lengths.
6. An equalizer sheet for loose leaf binders
having equalizing elements adhered to both sides
of said sheet. adjacent one edge thereof, the 30
equalizing elements on one side of said sheet be
ing of different length than the elements on the
opposite side of -said sheet.
JOHN HOWARD TALMAGE.
Документ
Категория
Без категории
Просмотров
0
Размер файла
324 Кб
Теги
1/--страниц
Пожаловаться на содержимое документа