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Патент USA US2121499

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June 21, 1938.
J. E.‘ EUTH
2,121,499 '
CARBON HOLDING DEVICE
Filed Jan. 9, 1957
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2 Sheets-Sheet 1
: June'2l, 1938.
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J. E. EUTH
2,121,499
CARBON HOLDING DEVICE
Filed Jan. 9, 1937
2 Sheets-Sheet 2
@1724” ,
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Patented June 21, 1938
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I
UNITED STATES PATENT IOFFIQE
‘CARBON HOLDING DEVICE
John E. Euth,‘ Chicago, 111., assignor to United
Autographic Register 00., a corporation of
Illinois
_
‘
_
Application January 9, 1937, Serial No. 119,852
10 Claims.
(Cl. 282-»29)
This invention relates to a carbon holder’for
use in a typewriter‘provided with a cylindrical
platen, and more particularly to an improved ana
choring tail for automatically holding transfer
5 slips‘or carbo‘ri slips during a stripping operation
in which the carbons are interleaved with a succeeding set of forms.
’ >
The primary object of the invention is to provide an improved carbon holding device having
sandpaper of a ‘comparatively ?ne grade, 2/0
grade being satisfactory. As shown in Figs. 2
and 5, the front marginal edge of the paper may
have a V notch, as indicated at Ill, to lessen the
chance of the edge catching on lines of weaken- 5
ing usually provided between sets of forms ll
i on continuous-form stationery [2.
The carbon transfer strips B may be ordinary
carbon paper of substantially the same width as
10 means for automatically engaging‘ ‘the platen
frictionally to hold the carbons while the stationery is free to advance,
A further object of the invention is to provide
continuous stationery strips 12. The slips, pref- 10
erably are arranged in Stepped relation, as in
dicated in Figs. 3-5, inclusive, and their rear
edge portions folded around and Permanently
an improved carbon holding device in which the
15 carbons and anchoring tail are of substantially
the same width as the stationery.
A further object of the invention is to provide
a carbon holding tail having stationery guidemeans at both its front and rear edge portions.
20 Another object of the invention is to provide
rear guide-means for the ‘stationery which may
be detached from the anchoring tail after the
secured to the tail A, by means of transverse
gummed paper strips B’, the ends of the latter 1};
being secured to the tail A. Preferably, the end
carbons are worn out.
The invention is illustrated vin a preferred em-
25 bodiment in the accompanying drawings, in
Which__
Fig. 1 is a side elevational view, partly in section and somewhat diagrammatic, showing how
the stationery and interleaved carbons‘are fed
30 between a platen roll and presser rolls which are
standard equipment on most machines; Fig. 2,
portions of the strips B’ are covered with
summed tabs i3 (seoFig. 2)- It may he noted
that the fastehihgs 13' held the Carbon Slips B
in a manner that permits the Stationery Strips 20
ii’ to be threaded between the same and the
Strips B’ Serve to hold the carbons in lateral
alignment with the stationery.
*
The preferred aligning means C, for the rear
of the anchoring tail, is shown in Figs. 1-3 and 25
comprises ‘a ?at cross-bar l4 and a companion
parallel‘ eressebal‘ l5 Which may be of double
thickness‘ to‘ Provide additional rigidity- The
ends Of the Cress-bars are joined by integrally
formed ehd bars '5, Which preferably ‘are (115- 30‘
posed at right angles to the plane of the bars
a broken ‘plan view showing a preferred form of
the carbon holding device as used in connection
M and‘ 15, 80 as to provide a‘ lateral aligning
sllrface- The device is secured to the Feel‘ of the
with continuous stationery strips; Fig. 3, a frag35 mentary plan view similar to Fig. 2 but taken
from the opposite side‘; Fig. 4, an enlarged frag-
tall A by doubling back the rear mal'ginrl per‘
“on H over the cross'bar M and igl'lpplhg th?
overlap by means of U'Shaped sprmg chps C ’
‘
40
mentary perspective view showing how the car.-
ZS sh‘iown m Flg' 2‘ tghus afteg a Sgt of carbqns
bon slips are
fastened
to
the anchoring
tail;
Fig.
'
.
.
.
.
t?‘ve
» econte WOT-n’
e anchoring tall,
5, a broken sectional view, taken as indicated at
may be Salvage-d and applied to a new assembly_
1
5 3f gilg-gifglii
g’farear
fraggnllfgtag
vlewfshi‘g'e
5' _°
e_
1 6'' eans 01'
anchoring tail; Fig- 7, a fragmentary plan shOWme another modi?ed form of rear guide-means;
Flg- 3, a fragmentary plan VleW Showing another
45 modi?ed form of rear guide-means; and Fig- 9,
a sectional view, taken as indicated at line 9 of
Fig. 8.
In the preferred embodiment illustrated in
Figs. 1-5, A designates a tail-like web which
50 serves as an anchoring device; 13, carbon slips
which are secured to the tail A, by means of
fastening means B’; and C, rear guide-means
which may be detachably secured to the rear of
the anchoring tail by means of metal clips C’.
55
The anchoring tail may be made of ordinary
5
ey may 6 dl-sca-rded Wtth
but the rear ahgmng device
The holding device is easily installed by
threading all of the strips through a slot l8
provided between the bars l4 and I5 and thread
ing them into interleaved relation with the car
bon slips. This operation is facilitated by the ,.
stepped arrangement of the rear edges of the 4*’
carbons. The assembly is then introduced be
tween a platen roll I9, which usually has a soft
rubber surface 20, and presser rolls 2| so that
the advanced loaded set of forms may be typed >
in‘ the usual manner. At the completion of the 5°
writing operation, the forms will reach the posi
tion shown in Fig. 1 and the presser rolls 2| may
be thrown out of engagement with the station
ery. The operator then grasps the ends of the
strips 12 and draws them upwardly at an angle 55
2...
-.
2,121,499
that will press a suflicient arc of the frictional
tail against the platen to bind it against forward
movement and permit the interleaved station
ery to slip therearound. When the completed
set of forms are clear of the carbons, they may
be detached and the assembly is ready to be
backed into writing position by means of the
platen roll and presser mechanism, as will be
readily understood.
10
In the modi?cation shown in Fig. 6, the rear
edge of the anchoring strip 22 is doubled over
to form a pleat 23 which may be held by staples
24. A metal bail 25 may then have its front ends
introduced into the ends of the pleat 23 by bend
15 ing the central portion of the pleat 23.
In the modi?cation shown in Fig. 7, a metal
insert 26 is mounted in a window 21 provided
in the rear of an anchoring tail 28. The metal
frame thus formed serves as an aligning slot
20 for the stationery.
In the modi?cation shown in Figs. 8 and 9, a
flat metal bar 29 has its end portions turned
upwardly and inwardly over the anchoring tall
30, as indicated at 3|, and is gripped in position
by means of metal clips 32.
It may be noted that in the forms shown in
Figs. 3, 7 and 8, the metal aligning means serves
to hold the rear edge portion of vthe anchoring
tail in lateral extended position. In all forms
except Fig. '7, practically the entire holding de
vice is disposed within the lateral boundaries of
the stationery strips.
While sandpaper is preferred for use as an
anchoring tail, other stiff papers may be used
35 provided with a suitable frictional face. For
example, it has been found that a thin sheet of
rubber may be pasted to the top face of the tail
and it will operate satisfactorily.
The foregoing detailed description has been
40 given for clearness of understanding only, and
no unnecessary limitations should be understood
therefrom, but the appended claims should be
construed as broadly as permissible, in view of
the prior art.
I claim:
1. A manifolding device, for use in a type
writer having a cylindrical platen around which
continuous stationery strips may be led,_ com
prising: a ?exible tail-like web to which is at
tached a plurality of carbon slips interleaved
with said stationery, said web having a face of
frictional material adapted to engage said platen
so as to restrain advance of the carbons while
the stationery is stripped therethrough.
2. A manifolding device, for use in a typewriter
having a cylindrical platen roll, comprising: a
?exible tail member having a frictional face
adapted to engage said platen roll and automati
cally restrain circumferential movement with re
spect to the roll while stationery is drawn there
around; a series of carbon slips connected to
front marginal portions of said tail member;
and guide-means at the rear of the tail member
adapted to engage stationery interleaved with
the carbons and hold the same in lateral align
ment.
3. A device as speci?ed in claim 2, in which
the guide-means comprises a metal cross-bar
secured to the tail member so as to hold said
member laterally extended and form a passage 10
way for the stationery strips.
4. A device as speci?ed in claim 2, in which
the guide-means comprises an elongated metallic
frame removably secured to the tail member so
as to hold the tail laterally extended and form 15
a guide slot for the stationery.
5. A device as speci?ed in claim 2, in which
the guide-means comprises an elongated metallic
frame removably secured to the tail member so
as to hold‘ the tail laterally extended and form
a guide slot for the stationery, said frame having
a pair of ?at parallel cross-bars connected at
their ends by ?at end-bars disposed substantially
perpendicular to the plane of the cross-bars.
6. A device as speci?ed in claim 2, in which 25
the rear end of the tail member is doubled back
on itself to form a pleat, and the guide means
comprises a bail having ends adapted to be in
serted in opposite ends of said pleat.
7. In a typewriter having a cylindrical platen 30
and presser rolls for feeding a plurality of long
strips of stationery through writing position, a
carbon holding device comprising: a tail mem
ber, of the same width as the stationery strips,
having a frictional face presented towards the
platen and adapted to prevent circumferential
movement with respect thereto when said presser
rolls are released; guide-means at the rear of
said tail for holding the stationery strips in lat
eral alignment and in juxtaposition to said tail;
carbon slips interleaved with the strips; and
fastenings for said carbon slips for securing
their rear end portions to the front lateral edge
portions of the tail, said fastenings forming lat
eral guides for the stationery at the front of
said tail.
8. A device as speci?ed in claim 7, in which
the tail member is made of sandpaper.
9. A device as speci?ed in claim '7, in which
the tail member is made of sandpaper and has
at its front marginal edge portion a V-shaped
notch to avoid catching on lines of weakening
provided in the stationery strips.
10. A device as speci?ed in claim 7, in which
the fastenings for the carbons comprise trans
verse strips of gummed tape, around which the 55
carbons are folded, said carbons being arranged
in stepped relation.
JOHN E. EUTI-I.
60
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