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8, 1946.v
c. w. BURCKY
‘
'
2,409,102
_ eummé mans
' Fil'ed Jan. 29,1945
FIG. 2
INVENTOR
CHARLES w. suRcKY
“ 517 [W
ATTORNEY
Patented Oct. 8, 1946
UNITED STATES PATENT OFFICE
2,409,102
GUIDING MEANS
Charles W. Burcky, Park Ridge, 111., assignor to
Teletype Corporation, Chicago, 111., a corpora
tion of Delaware
Application January 29, 1945, Serial No. 575,131
3 Claims. (Cl. 197—133)
1
,
2
balls H are disposed between the carriage H and
This invention pertains to printing apparatus
the rails l4 and I5, and provide free movement
and more particularly to paper controlling in
of the carriage with respect to its supporting rails.
strumentalities therefor.
As is well known, the rotatable platen I2 is pro
The principal object of the present invention
vided with a feed ratchet (not shown) with which
is to prOVide in a recording machine, features
there cooperates a feed pawl (not shown) for
which are conducive to reliable and efficient op- .
advancing the paper.
eration.
As shown in the aforementioned patent, car
Another object of the invention is to provide
riage H supports an arcuate paper guiding plate
means for maintaining the sides of a paper chute
in proper alignment with respect to the normal 10 (not shown) which extends around the lower
portion of the platen l2 and conforms to the con
path of the web of paper to preclude a binding
tour thereof. The arcuate plate is provided with
action from developing between the paper and
bearing members in which are supported a shaft
the sides of the chute, and to insure that the
18. The shaft i8 has mounted thereon pressure
web approaches the platen in proper alignment.
rollers It (only one of which is shown) and the
The present invention features novel con
arcuate paper guiding plate is provided with
apertures in registry with the pressure rolls 19
to permit the rolls to frictionally engage the
trolling devices which facilitate the handling and
disposal of record material for printing ma
chines. Brie?y, the printer to which the device
platen when no paper is inserted in the carriage,
is adapted to print upon page width paper which 20 and to frictionally engage paper upon which
according to the present invention, is applicable
characters are to be printed.
may be in the form of av continuous web. The
invention contemplates a page printer having a
' paper guide plate provided with paper retaining
means, said plate having spaced tongues on the
foremost edge thereof which are adapted to co
'
The end plates I3 are provided with means for
supporting a paper tear-off blade 2| and a paper
guiding plate 22. Blade 2| and plate 22 are
25 spaced apart a predetermined distance, whereby
there is provided a space through which may be
guided paper passing upwardly from the platen
printer frame, and spring hold-down means for
after having been fed between the platen l2 and
said plate, said spring means comprising a pair
the arcuate guide plate that carries pressure roll
of flat springs pivotally mounted on the printer
frame and adapted to cooperate with a pair of 30 ers IS. The lower edge of the guide plate 22 is
disposed in close proximity to the platen l2, and
projections on said plate to hold down the plate
the plate functions after the manner of a stripper
and at the same time to be conveniently pivoted
to guide the paper away from the platen. Suit
away from the edges of said plate to render said
able
guide ?ngers (not shown) are mounted on
plate readily removable.
The foregoing objects and features of the in 35 tear-off blade 2|, the ?ngers of which extend
downwardly and overlap the arcuate plate so that
vention will appear from the following detailed
paper emerging from between the platen and ar
description taken in conjunction with the accom
cuate plate is guided to the passage or space be
panying drawing, in which
tween tear-oif blade 2| and guide'plate 22.
Fig. 1 is a perspective view of the platen car
As indicated above, it may be desired to supply
riage showing particularly the paper chute and
operate with corresponding slots provided in the
retaining means therefor, and
Fig. 2 is a vertical sectional view through the
platen carriage, taken approximately on line 2-2
of Fig. 1, showing the manner of mounting the
device according to the invention.
Having reference to the drawing, the platen
carriage mechanism to which the paper guiding
and controlling instrumentalities of the present
invention are applicable is indicated generally
as H, and is of the type shown in U. S. Patent
2,296,874, granted September 29, 1942, to A. H.
Reiber. A platen I2 is rotatably mounted in end
plates l3 of carriage H. The carriage H is sup
ported on rails l4 and I5 at the top of the main
frame member [6 of the printer. Anti-friction 55
paper in the form of a web which is not sup
ported on the carriage but which is stationarily
mounted upon any suitable support behind the
carriage. To achieve this result, the present in
vention provides a guide member and means for
supporting said guide member. The carriage H
has secured thereto and extending across the rear
thereof a convexly formed plate 23 in which are
formed spaced slots 24 near the rearmost edge
thereof. A guide plate 25 is provided at the fore
most edge thereof with tongues 25 which are
spaced apart a distance equal to the spacing of
‘the slots 24 in the convex plate 23, each tongue
being offset as shown in Fig. 2.
The guide plate or paper chute 25 is provided
2,409,102 '
3
4
along its ends with paper guiding and retaining
means, comprising retaining members 28 se
cured to the plate 25 by bolts 29. Also adapted
from said apron, a pair of ?at spring hold-down
clamps pivotally attached to said carriage, one
adjacent each edge of said chute, cooperating
lugs on said chute, whereby said clamps are
adapted to be superimposed upon said lugs to
to be secured by bolts 29 are a pair of bars 3|,
one at each end of plate 25 and each provided
with a sidewardly extending lug 32. Secured to
the carriage I! adjacent the sides of the plate 25
are a pair of brackets 33.
retain said chute and to be swung clear of said
lugs to render said chute readily detachable, and
means on said chute coactive with the extremi
A spring hold-down
clamp 34 is pivotally connected to each bracket
33 in such a manner that the free end of each
spring is adapted to cooperate with the lug or
ties of said clamps to obviate disalignment of said
chute with respect to the paper.
2. In a recorder, a stationary frame, a platen
carriage supported upon said frame, a convex
apron, at the rear of said carriage comprising a
projection 32 extending sidewardly from the bars
3|. The lugs or projections 32 are further pro
vided with vertical ?anges 21 which cooperate
with the ends of the respective springs 34, the
downwardly and rearwardly directed portion, said
sition 35 preparatory to detachment, and the
downwardly and rearwardly directed portion, said
15 apron having apertures in said portion, a paper
purpose of which is to obviate the possibility of
guiding chute having projections insertable into
plate 25 being accidentally dislodged or dislo
said apertures for supporting said chute to extend
cated by being struck on the bottom edge thereof.
said chute obliquely downwardly from said apron,
Accordingly, slotted holes are provided in bars
resilient
instrumentalities pivotally attached to
SI for bolts 129 so that, with bolts 25 loosened 20
said carriage, one adjacent to each edge of said
and springs 34 in their operative (solid line) po
chute, cooperating elements on said chute, where
sition, bars 3i are held with their ?anges tightly
by said instrumentalities are adapted to be super
against the free ends of springs 34, and plate 25
imposed upon said elements to retain said chute
is urged in the opposite direction to bring tongues
26 against the lower edges of their slots 24, where 25 and to be pivoted clear of said elements to render
said chute readily detachable, and means on said
'by, when bolts 29 are tightened, plate 25 will be
cooperating elements coactive with the extremi
held securely against dislocation. With this con
ties of said resilient; instrumentalities to obviate
struction the spring clamps 3:‘! are adapted to be
disalignment of said chute with respect to the
swung toward’ and away from their associated
lugs 32 to permit the ready removal of the chute 30 paper.
3. In a recorder, a stationary frame, a platen
25. In Fig. 1 the released position of spring 34
carriage supported upon said frame, a convex
is illustrated by the dotted position 31.
apron at the rear of said carriage comprising a
In Fig. 2 the chute 25 is shown in a dotted po
spring clamp 34 is shown dotted in its un?exed
position 36. Fig. 2 also shows spring 34 in its
?exed position.
Although a particular embodiment of the in
vention has been described herein, it will be un
derstood that all modi?cations are contemplated
which come within the spirit and scope of the
apron having apertures in said portion, a paper
guiding chute having projections insertable into
said apertures for supporting said chute to ex
tend said chute obliquely downwardly from said
apron, resilient instrumentalities pivotally at
41)
tached to said carriage, one adjacent to each
edge of said chute, elements on said chute co
operative With said instrumentalities whereby
appended claims.
said instrumentalities are adapted to be super
What is claimed is:
imposed upon said elements to retain said chute
1. In a printing apparatus, a stationary frame,
a platen carriage movable upon said frame for 45 and to be pivoted clear of said elements to render
said chute readily detachable, said elements hav
character spacing, a convex apron at the rear
ing
adjusting facilities, and means integral with
of said carriage having a set of slots near the
said elements and effective in cooperation with
rearmost edge thereof, a paper guiding chute
said adjusting facilities and said apertures to
having ears insertable into said slots for support
secure said paper chute against dislocation.
50
ing said‘ chute to extend obliquely downwardly
CHARLES W. BUR/CKY.
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