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Патент USA US2113579

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April 12, 1933-`
H. G. DYBvlG
v
v
2,113,579
PINWHEEL FEEDING DEVICE
Filed Oct. 31, 1936-
54
A, sa
Q
"
2,113,579
Patented Àpr. y12, 1938
orrics
2,113,579
PENWHEEH» FEEDING DEVECE
Henry Gnlliybvig, Dayton, Ohio, assigner to .Bohn
Q. Sherman, Dayton, Ohio
~
ApplicationOt-.teher 3i, 1936, Serial No. M8534
,24 claims. (ci. raz-133)"
Other attempts have been made wherein the
This invention relates to a pin wheel feeding
device and in more particular to a pin wheel
feeding device mounted in an expansible platen.
An object of this invention is to provide an v
5 expansible platen having a pin wheel feeding
device adapted tofeed various widths of record
material.
'
Another object of this invention is to have
feeding pins project through -variable length slots
10 in the platen.
Another object of this invention is to provide
ñllers for slots in the platen.
Other objects and advantages reside in the
construction of parts7 the'combination thereof
15 and the mode of operation, as will become more
apparent from the following description. ‘
Fig. 1 is a fragmentary perspective view of a
typewriter showing rny platen.
Fig. 2 is a longitudinal sectional view of my
20 platen taken substantially on the line 2-2 of
Fig. 5.
.
Fig. 3 is an enlarged fragmentary longitudinal
sectional view taken substantially on the line
3-3 of Fig. 4 and drawn to a larger scale than
25 the longitudinal sectional view shown in Fig. 2.
Fig. 4 is a fragmentary sectional view taken
substantially on the line 4_4 of Fig. 3.
Fig. 5 is a transverse sectional view taken
substantially on the line 5-5 of Fig. 2, but drawn
30 to a larger scale than Fig. 2, and a. smaller scale
than Figs. 3 and 4.
_
_
.
Fig. 6 is an enlarged fragmentary sectional
view showing a tooth of the pin wheel feeding
device cooperating with the edges of the longi
35 tudinal slots as a gear tooth.
_pin wheel feeding devices are adjustable axially,
so as to change the spacing' between the pin
wheel feeding devices that usually are adapted
to engage marginal holes in the superimposed
strips of record materiali.` The distance between
the pin wheel feeding devices has been spanned
by removable platens or platen sections. These
may be split so as _to permit the easy removal
of the sections. In shifting from one width
material to another, sections having suitable
length are selected for use between the pin
wheels.'
«
In the device disclosed herein and forming
the invention hereof, a platen having a plurality -
of equally spaced longitudinal slots in one end
yhas been used. The slots permit the adjustment
of one of the pin wheel feeding wheels axially,
without interference from the platen. In order
to permit the use of the platen between the pin
Wheels, suitable strips having a tongued and
grooved relation with the platen, fill the slots
between `the pin wheels, so that as the pin wheels
are separated the strips are drawn into the slots
vacated by the adjustable pin wheel, so as to _
present a uniform writing surface to the record
material advanced in registry past writing pd
sition.
*i
`
.
In the drawing the reference character I0
indicates the typewriter having a traveling car
riage I2 supporting a platen Il. Instead of the
carriage I2 traveling to and fro, the type basket
could be mounted for reciprocatory movement.
Platen mounting
35
The platen Il includes a cylindrical member`
The pin wheel feeding device used in this
I6, supported upon a pair of discs or end framesA
invention incorporates some of the principles dis
I8 and 2li. In >order to provide a proper cushion
closed in my copending application Serial No. for
the impinging type, the face of the cylin
88,608 for Pin wheel feed, filed July 2, 1936.
v
drical
I6 is lined with rubber 22. One
In the past it has been general practice to end ofmember
40
the cylindrical disc I8 is provided with
provide round holes in the periphery of the platen feed
holes 24. The opposite end is provided with
of writing machines to permit the feeding pins
plurality of elongated longitudinal slots 26.
to project therethrough into engagement with aThe
pin holes 24 and the slots 26 permit the
marginally punched feeding holes in superim
projection of feeding pins through the wall of
4Ol posed strips of record material. Various at-y
tempts have been made to provide pin wheel cylindrical member I6, as will appear more »fully
.
feeding devices for use with various widths of later.
In conventional. typewriters the platen is ro- record material. It has been proposed to use tated
by the operator grasping a knob disposed
multiple section platens having a plurality of on either
end of the reciprocatory carriage. The 50
50 feeding wheels therein, some of which may be
Y platen may also be rotated automatically by the
moved into inoperative position so as to permit
line spacing mechanism, which has not been
>others to be used in advancing the record mate
rial. Shields have been provided for covering shown in the present application, as the line
the holes in> the platen that are left vacant by _spacing mechanism per se does notconstitute 55
a part of applicant’s contribution to the art.
55 the pin wheels that are in inoperative position.
/
2.
2,113,579
_ In the present modification the disc I8 is fixedly
attached to a tubular member 30, journalled in
Thus, it may be seen, that as t-he knob 92- is ro
tated, the pin wheel 62 is actuated to the left or
to the right, as viewed in Fig. 2. It is`thereby
possible to use a pin wheel feeding device with
the end frame to the left of the carriage, as shown
in Fig. 2, which includes members 32 and 34, each
of which has been- broken away for the sake \ marginally punched record material of various
of clearness. 'I'he tubular member 30 is iixedly widths.` If, for example, record material eight
attached to a gear 36, meshing with a pinion 38, inches wide is used, feeding wheels 60 and 62 are
driving a gear 40, ñxedly attached to a suitable adjusted so as to engage the marginal holes in
knob 42 and supported upon a bracket 44 ñxedly\
carried by the end of the end frame of the car
riage I2. As the operator grasps and rotates the
knob 42, the gear 40 driving the pinion 38 actuates
the gear 36 and with it the platen I4.
The disc 20 located and supporting the opposite
such paper. I_f the paper is an inch or two wider,
the pin wheel 62 is moved approximately an inch 10
or two to the right, so as to accommodate the
wider paper. In order to utilize the paper it is
necessary to fill or cover the slots between 'the
pin wheels. If these slots are not covered, the
15 end of the cylindrical disc I6 is iixedly attached ` type impinging upon the record material would
to the tubular sleeve 46, having iìxedly attached
thereto a knob 48.
'I'his tubular sleeve 46 is
mounted for rotation in the journal 50, ilxedly at
tached to the carriage. As the operator grasps
20 the knob 48 and rotates the same, the platen I4
is rotated.
~
Pin wheel feeding device
The pin wheels 60 and 62 are rotatably mount
25 ed upon a shaft 64 eccentrically disposed with re
spect to the center of rotation of the platen I4.
The shaft 64 has one end mounted upon a bracket
mutilate the same.
Slot filling members
Slot'ñlling members or strips |00 are‘provided
with longitudinal tongues |02 seated in grooves 20
|04 extending along the edges of the slots' 26.
Members |00 are lined or faced with a rubber fac
ing |06. One end of each strip |00 is fixedly at
tached to the periphery of member 96, which is
adjusted to the right or to the left as the case 25
may be, in unison with the pin wheel 62. 'I'he
grooves |04 are curved inwardly, so as to cause a
66 fixedly attached to a stub shaft 68 passing` portion ofÍ the strips |00 to lie within the periph
through the tubular member 30 and ñxedly at
ery of the platen when not in use. Thus, it may
30 tached to member 44. The opposite end of the readily be seen that the stripsY | 00 passing through
shaft 64 is mounted upon a bracket ‘10 ilxedly the grooves |04 are actuated with the pin wheel, 30
attached to a tubular sleeve 12, mounted for ro
so that as the pin Wheel 62 is moved axially to the
tation within tubular member 46. As member right, as viewed in Fig. 2, the space vacated by
44 is non-:rotatably mounted, and the stub shaft the pin wheel is filled with the strips |00. When
35 68 i'lxedly attached thereto, together with mem
the pin°whee1 is actuated to the left, the feeding 35
ber 66, it can be readily seen that the eccentrical
pins 16 are moved into the portion of the slots
ly disposed shaft 64 does not rotate with the vacated by the strips |00.
platen. The feeding pins 14 in pin wheel 60 and
The strips |00, together with annular member
the feeding pins 16 in pin wheel 62 cooperate
40 with the apertures 24 and the slots 26 to drive
the pin wheels 60 and 62 as the platen I4 is ro
96, rotatably mounted upon member 98, rotate A
with the platen I 4, so as to present a smooth writ
ing surface `to the Writing portion of the platen, 40
tated. The feeding pins 14 and 1li-function the- Thus, it is seen that one platen may be used for
same as gear teeth, which mesh with~what might various widths of paper without the insertion of
be referred to as gear sectors, that is, the edges new sections of platen, without removal of sec
45 of holes 24 and the edges of slots 26 respectively. tions of platen, or without the interchange of
Lateral adjusting mechanism for pin wheels
The pin wheel 62 is adjustable laterally or
axially along the shaft 64. This is permissible due
to the slots 26 which extend longitudinally in
platen sections'.-
,
„
'
45
When it is found desirable to use the type
writer in writing`I letters, addressing envelopes
and ‘the like, where writing material is used that
is not provided with marginal feed holes, the.
equally spaced relation' from the end of the platen - pin wheel 62_may be actuated to the right suiil 50
toward the center thereof, or as faras desirable. ciently far to provide clearance for both of the
The pin wheel 62 is provided with a hub 80 having
a flange 82 at one end thereof and-a flange 84
at the opposite end. 'I'he fiange 84 abuts a collar
55 or yoke 86 integral with an internally threaded
member 88 threadedly engaging a threaded rod
80 terminating in a knob 92. As the knob 82 is
rotated, the rod 00 winch cannot be moved axially,
actuates member 88 either to the left or the
right, as viewed in Fig. 2. When it is actuated
to the right, the collar or yoke 86 engaging the
flange 84 moves the pin wheel 62 to the right.
j The flange 82 on the left end of the hub 80, as
viewed in Fig.- 2, engages an inwardly projecting
annular flange S4 integral with member 86, which
is rotatably mounted upon member 88 andheld
in position by a nut 91. When member 88 is ac
tuated to the left as viewed in Fig. 2, the in
i wardly projecting flange 94 integral with mem
70 ber 86, engaging the flange 82, actuates the pin
wheel 62 to the left.
Member 88 is connected to member 88 bya
bridging member 88 that extends between the
vflange I4 and the outer path of movement of
the feeding pins 16 can-led by the pin wheel 62.
margins of the writing material between the pins
of the pin wheels 60 and 62, as clearly shown in
Fig. 1, wherein a piece of paper is shown in writ
ing position between the pin wheels 60 and 62. 65
For the convenience of disclosure the wheels
of the platen have been shown of much heavier
material Vthan would be- required in actual'pro
duction. This has been done for the sake of
clearness.
'
Instead of one end being provided with‘slots,
both ends of the platen could be slotted, the slots
of one end being arranged in staggered relation
withV respect to the slots of the other end. The
feeding pins would then also be arranged in stagL
gered relation, which would require marginally
punched record material provided with rows of
apertures arranged in staggered relation. Filler
members found in each of the slots of both ends 70
may be adjusted axially so as to expand or con- .
tract the effective area of the platen. 'I'his may
be accomplished by adjusting either one of the
pin wheels axially, or by adjusting both axially.
By this arrangement a greater differential in 75
3
„
"
.
2,113,579
of' pin wheels, one of which is adjustably mounted
for axial adjustment with a cylindrical platen
having a roW of peripherally anranged pin holes
Width of record materials may be used uponI the
platen.
Although the preferred modiñcation of the de
vice has been described, it will >be understood
that within the purview of this invention various
changes may-be made in the form, details, pro
adjacent one end for the feeding pins of one
of said 'pin wheels, and a plurality of longitu
dinal slots in the other end thereof, the feeding
pins of the adjustably mounted pin Wheel pro
portion and arrangement of parts which'gener
jecting through said slots which permits axial
adjustment of said pin wheel.
ally stated consist in a device capable of carry
ing out the objects set forth, in the novel parts,
combination of parts and mode of operation, as
disclosed and defined in the appended claims.
Having thus described my invention, I claim:
'7. In a p'm wheel feeding device for advancing 10
superimposed strips of marginally punched rec
ord material in registry past the writing posi
tion of a writing machine, the combination of a
1. In a pin wheel feeding typewriting ma
chine, a pair of pin wheels, a platen including
15 a cylindrical member having openings adjacent
one end and a plurality of longitudinal slots ad
cylindrical platen having peripherally arranged
holes adjacent one end and a plurality Lof longi-4
tudinal slots adjacent the other end, with a pair
eccentrically disposed pin _Wheels one of which
jacent the other endfthe openings and the slots of
has feeding pins projecting through said holes
receiving the feeding pins of the pin Wheels, and and the other has the feeding pins projecting
a plurality of filler members one for each of the, through said slots, the feeding pins cooperating 20
slots adjustably mounted therein, said filler mem
the holes and the slots as gear teeth to ro
bers cooperating with the cylindrical member so with
tate the pin wheels at substantiallythe same pe
as to present a uniform Writing surface over at
ripheral speed as the peripheral speed of the
least a portion of the slotted end of the cylin
platen.
_
‘
drical member.
'
8. In a `pin wheel feeding device for advancing
2. In a pin wheel feeding typewriting ma- 25
superimposed strips of marginally punched rec
chine, a platen including a cylindrical member ord material in registry past the Writing posi
enclosing the pin wheel, said cylindrical mem
ber including a plurality of longitudinal slots tion of a writing machine, the combination of a .
pair of pin wheels, one of which is adjustably
equally spaced around the periphery of the cyl
mounted for axial adjustment with a cylindri 30
30 inder, and a plurality of filler members adjust
cal platen having peripherally arranged holesv
, ably mounted in ñxed relation .with respect to
the pin Wheel so that as ‘the pin Wheel is adjusted
longitudinally the filler members move with the
pin wheel so as to present a uniform writing
adjacent one end for the feeding pins of one of
said pin wheels, a plurality of longitudinal, slots
in the other end of the platen, the feeding pins
of the adjustably mounted wheel projecting 35
through the slots, which permit axial adjustment
35 surface on one side of the pin wheel.
3. In a writing machine having feeding pins
for advancing the record material in registry past
of said pin Wheel, and filler members for the por
adjacent one end, the feeding pins projecting
through the slots, and ñller members arh‘ustably
of a writing machine, the combination of a pair
~ writing position, a platen including a. cylindrical tion of the slots located between -the feeding »
member having slotted openings arranged in Wheels.
9. In a pin Wheel feeding device for advancing 40
40 equally spaced relation around the periphery superimposed strips of‘ marginally punched rec
mounted in the slots to one side of the feeding
pins, said filler members cooperating with the
45 slotted portion of the cylinder to present a uni
form writing surface over at least a portion of
the slotted end of the cylindrical member.
'
'
4. In a writing machine, the combination of
a platen including a cylindrical member having
50
ord material in registry past the writing position
of pin wheels, one of which is adjustably mount
ed for axial adjustment with a cylindrical platen 45
having peripherally arranged holes adjacent one
end for the feeding pins of one of said pin Wheels,
.a plurality of longitudinal slots in the other end
of the platen, the feeding pins of the adjustably
wheel projecting through the slots,
a plurality of equally spaced longitudinalv slots ' mounted
which permit axial adjustment of said pin wheel,
adjacent one end thereof, filler members adjust
ably mounted in the slo'ts with adjustable feed
50
and adjustable members one for each of the slots
adapted to be adjusted into position to.close the
.portions
the slots located between the pin
cyclically, means for supporting the feeding pins, Wheels to of
55
present a uniform writing surface.
said feeding pins being adjustable axially with
l0. In a pin wheel feeding device for advancing
respect to the platen, the ñller members being superimposed vstrips of marginally punched rec
adjustable in unison with the feeding pins so -ord material in registry past the writing posi
as to cooperate, withY the slotted portion of the.
tion of a writing machine, the combination of a
cylinder to present a uniform writing surface pair
of pin wheels, one of which is adjustably 60
along
one
side
of
the
feeding
pins.'
60 5. In a pin wheel feeding device for advancing mounted for axial adjustment with a cylindrical
i platen having peripherally arranged holes adja
superimposed strips of punched record material cent one end for the feeding pins bf one of said
in .registry past the writing position of a Writing
pin wheels, a plurality of longitudinal slots in
machine, the combination'including a cylindri
the
other end of the platen, the feeding >pins of
cal platen having a plurality of longitudinal slots the adjustably
mounted wheel projecting through .
adjacent one end thereof, said .platen having a
slots, which permit axial adjustment of said
resilient facing, adjustable members for filling at the
pin wheel, said slotshaving the sides thereof
- least portions of said slots, saidl adjustable mem
grooved, and tongued ñller members adjustably
bers being provided with a resilient facing Aso as mounted in the slots to fill a portion thereof to 70
to present a. uniform surface to at least a portion one side of the pin wheel feeding device.A
of the slotted end of the platen.`
1l. In a pin wheel feeding device for advanc
6. In a pin wheel feeding device for advancing
ing pins adapted to project through the slots
. superimposed strips of marginally punched rec
ord material in registry past the writing position
75 of a writing machine,vthe combination of a pair
ing superimposed strips of marginally punchedV
record .material in registry past the Writing posi
tion of a writing machine, the combination of a>
4
2,113,579
pair of pin wheels, one of which is adjustably
mounted for axial adjustment with a cylindrical
mounted upon said adjustable means, and a plu
rality of strips ñxedly attached to said annular
#laten having peripherally arranged openings
member for ñlling the portions of the slots be
`,.djacent one end for the feeding pins of one of
said pin Wheels, a plurality of longitudinal
grooved slots in the other end of the platen,
the feeding pins-of the adjustably mounted pin`
wheels projecting through said slots which per
mit axial adjustment of said pin wheels, and
tween the pin Wheels.
t
16. In a pin wheel feeding device for advanc
ing superimposed strips of punched record ma
terial in registry past the writing position of, a
Writing machine, the combination including a
pair of eccentrically mounted pin Wheels, one of
means mounted for adjustment with said adjust- . which is adjust-able axially, a cylindrical platen
able pin wheel for closing the Kportions of the having peripherally arranged openings adjacent 10
slots located intermediate Athe pin Wheels.
12.- In a pin wheel feeding device for advanc
15
ing superimposed strips of marginally punched
record material in registry past the writing posi
' tion of a Writing machine, the combination of a
pair of pin wheels, one of which is adjustably
mounted for axial adjustment with a cylindrical
platen having peripherally arranged openings
one end for the feeding pins of one of said pin
wheels and a plurality of longitudinal slots in the
other end thereof, a shaft eccentrically mounted '
within the platen for rotatably supporting said 15
pin wheels, and means accessible from the ex
terior of the platen for axially adjusting said ad-v
justable pin wheel having its pins projecting
through said slots so as to accommodate various
adjacent one end for the feeding pins of one of , widths of record material.
said pin Wheels,a plurality of longitudinal grooved
20
17. In a pin wheel feeding device for advanc
slots _in the other end of the platen, the feed
ing superimposed strips- of punched record ma
ing pins of the adjustably mounted pin wheel terial in `registry past the writing position of a
projecting through said slots which permit axial writing machine, the combination including a
25 adjustment of said pin Wheels, adjustable filler
cylindrical platen having peripherally arranged
members having tongues seated in said grooved openings adjacent» one end and 'a plurality of
slots, and means adjustably mounted with the longitudinal openings adjacent the other end, a
pin wheel for adjusting the filler members in shaft eccentrically mounted within the platen,
unison with the adjustment of the pin` wheel.
a pair of rotary pin wheels mounted upon the
30
13. In a pin wheel feeding device for advancá' shaft, one of which has its feeding pins project 30
ing superimposed strips of marginally punched ing through the openings in one end of the platen,
record material in registry past the writing posi
the other having its feeding pins projecting
tion of a writing machine, the combination of a through said longitudinal openings, means ac
cylindrical lplaten having peripherally arranged . cessible from the exterior of the platen for ad
35 holes adjacent one end and a plurality of longi
justing said other pin wheel axially, and means 35
tudinal slots adjacent the other end, with a pair including movably mounted strips for filling the
of eccentrically disposed pin wheels one of which portion of the longitudinal openings located be
is adjustably' mounted for axial adjustment, - tween the pin wheels.
means accessible from the.exterior of the platenV
18. In a pin wheel feeding device for advanc
40 for axially adjusting said adjustable pin wheel, ing superimposed strips of punched record ma
and means for filling the portions of the slots terial in registry past the writing position of a 40
between the pin wheels, so as to present a uni
Writing machine, the combination including a
form writing surface on the platen.
cylindrical platen having peripherally arranged
' 14. In a pin wheel feeding device for advancing holes adjacent one end and a‘plurality of longi
tudinal slots adjacent the other end, a shaft ec
45 superimposed strips of marginally punched »rec
crd material in'registry past the writing posi
centrically mounted within the platen, means ac
tion of» a writing machine, the combination of a cessible from the exterior of the platen f_or hold
cylindrical platen having peripherally arranged
' holes adjacent one end and a plurality of longi- „
50 tudinal slots adjacent the other end, with a pair
of eccentrically disposed pin wheels one of which
is mounted for axial adjustment, the feeding pins
ofl one of the pin wheels extending through said
holes and the feeding pins of the adjustable pin
55 wheel extending through said slots, means ac
cessible from the exterior of the platen for acl
justing said adjustably mounted pin wheel, and
means rotatablyV mounted-upon said adjusting
means for filling the portions of the slots be
60 tween the pin wheels.
15. In a pin wheel feeding device for advanc
ing superimposed strips of marginally punched
record material in registry past the writing posi
tion of a writing machine, the combination of a
65
-cylindrical platen-having peripherally arranged
holes adjacent one end and a plurality of longi
tudinal slots yadjacent the'other end, with a pair
of eccentrically disposed pin wheels one of which
fm
is mounted for axial adjustment, the feeding pins
of one of the pin wheels extending through said
holes and the feeding pins of the adjustable pin
wheel extending through said slots, means ac
cessible from the exterior of the platen for -ad
justing . said adjustably mounted pin wheel,
means including an annular member rotatably
ing the shaft in a stationary position, a pair of
pin wheelsfrotatably mounted upon said shaft,
the pins of one of which project through said
holes and the pins of the other project through 50
the slots, the feeding pins cooperating with the
holes and the slots as gear teeth to rotate the pin
. wheels at substantially the same peripheral speed
as the peripheral speed of the platen.
19. In a pin wheel feeding device for advancing
superimposed strlpsof punched record material
in registry past the writing position of a Writing
machine, the combination including a cylindri
cal platen having peripherally arranged open
ings, a shaft ñxedly mounted but eccentrically 60
disposed Within the platen, a pair of pin wheels
rotatably mounted upon said shaft, said pin
wheels having the teeth thereof projecting
through the openings of the platen, and means
accessible from the exterior of the platen for ad 65
justing at least one of said pin wheels -axially the
teeth thereof being shifted in the openings of the
platen so as to accommodate record material of
various widths.
20. In a pin Wheel feeding device for advanc
ing superimposed strips of punched record mate
rial in registry past the writing position of a
writing machine. the combination including a
rotary cylindrical platen having peripherally ar
ranged openings adjacent one end and a plu
9,118,579
rality of longitudinally arranged slots adjacent
the other end, an adjustably mounted shaft ec
centrically disposed within the platen, a pair of
pin wheels rotatably mounted upon said shaft, l
one of which >has the feeding pins adapted to
project through said openings and the other hav..
ing the feeding pins adapted to project through
said slot-s, adjustable means including a member
straddling one of said pin wheels for adjusting
10 the same axially, said member including an an
nular race concentrically disposed with respect
to the axis of rotation of the platen, and rotary
E.
'
parallel slots, and illler members adjustably
mounted in said slots, the adJustment of said
filler members adjusting the size' of the effective
writing area.
'
'
23. In a writing machine havingLa positive
feeding device for aligning the record material
upon the writing area, the combination includ- ,
ing a feeding device for aligning the record mate
rial upon the writing area, _a platen forming the
writing area, said platen including a.> plurality, of 10
equally spaced parallel slots, 'and ñller members _
adjustably mounted in said slots, the adjustment'
of _said filler members changing the size ot the
effective writing area upon the lplaten.
bers for filling the portions of the slots inter
-2d. In a writing machine having a pin feeding 15
mediate
the
pin
wheels.
'
15
device
for positively advancing the record mate
an adjustable .
21. In a writing machine having
,
writing areâí, a platen forming the writing area, rial over an adjustable writing area, the com
said platen including a cylindrical member hav , bination including a pin feeding device adjust
ing a plurality oi longitudinal slots eq
spaced ably mounted, a platen forming the writing area, 20
said platen including a plurality of equally spaced
around
the
periphery
of
the
cylindrical
member,
20
and a plurality of ñller members adjustably parallel slots through which at least some of the
mounted in said slots, the adjustment of said feeding pins project, and ñller members adjust
filler members adjusting the eñective width of ably mounted in said slots, the adjustment of said
îlller members changing the size of the eilectlve 25
the writing area.l
'
'
means mounted- upon said race including mem
22. Ina Writing’machine having an adjustable
writing area, a platen-.forming the writing area,
said platen having a. plurality of equally spaced
writing area upon the platen.
_
HENRY G. DYBVIG.
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