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Патент USA US2057081

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Oct- 13, 1935-
‘
}w. E. BF/tOWN
_
2,057,081
PAPER GLAZING MACHINE
Filed 061;‘. 3, 1934
INVENTOR
BYW
ATTORNEYS
2,057,081
Patented Oct. 13, 1936
UNITED STATES PATENT OFFICE
2,057,081
'
PAPER GLAZING MACHINE
Walter E. Brown, Rei?tomll’au assignor to Wyo
missing Glazed Paper Company, West Read
ing, Pa., a corporation of’ Pennsylvania
Application October 3, 1934, Serial No. 746,684
(Cl. 92-72)
8 Claims.
My invention relates to paper glazing machines
of the nature indicated in C. M. Hallman’s United
States Letters Patent, No. 1,357,234, dated No
vember 2, 1920, issued to the assignee of this ap
‘5 plication; and, more particularly, it consists in
improvements in the pressure tensioning of the
reciprocated radius-bar polisher, and in the con
struction and mounting of the paper-supporting
bed, whereby I am enabled to operate the machine
10 at a greatly increased speed and economically‘
produce a high quality glazed sheet of uniform
color and thickness throughout its entire width.
In machines of this nature, in which the polish
ing bar reciprocatively swings in a radial are from
J15 its pivotal connection on a spring carrier-beam,
and frictionally engages the continuously fed
paper passing over a flat supporting-bed, the pri
mary di?lculty is to secure a uniform rubbing
action across the entire width of the passing
1.20 paper. Due to such construction the frictional
pressure of the polishing bar varies across the
width of the paper, with its greatest pressure nor
mally exerted in its vertical position midway of
its reciprocal swings, the diminishing pressure to
I25 ward each edge of the paper exerting less glazing
action with resultant lack of uniformity of sur
face color and uneven paper thickness.
The Hallman patent‘ referred to’ above, pro
vided means for more equally distributing the
.30 pressure of the radius bar polisher, but ‘I have
found in practice, that when the speed of opera
tion is increased as desirable for increased eco
nomical production, a material change occurs in
the points of greatest pressure of the radially
35 swinging pressure bar. Such variance in pres
sure, is most clearly discernible in piled-up sheets
of the differently produced papers,—those pro
v.duced by slow movement of the polisher bar sag
ging midway of the paper width due to the pres
.40‘ sure at such point reducing the thickness. of the
novel features thereof set forth in the appended
claims.
,
Fig. 1 indicates diagrammatically, in front ele
vation, a machine of the nature shown in said
Hallman Patent No. 1,357,234, and discloses in ,5
connection therewith a prepared embodiment of
my improvements for overcoming the aforesaid
shift of the pressure points when the machine is
operated at high speed. _
Fig. 2 is an enlarged cross-section detail view, 10
taken on the line 2—2 of Fig. 1, showing the ad
justable tensioned rest for the free end of the
spring pressure-beam.
Fig. 3 is an enlarged cross-sectional detail view;
taken on the line 3—3 of Fig. 1, showing the con- 15
struction of the ?at paper-supporting bed.
Figs. 4, 5 and 6, are diagrammatic views indi
cating respectively piled up sheets made by, ?rst,
slow movement of the radius-bar polisher; sec
ond, by fast movement of said polisher; and, 20
third, by fast movement of said polisher with my
improvements applied to the machine.
, The machine indicated in thevdrawings essen
tially comprises, as heretofore, a reciprocable
radius bar 6_, pivotally suspended at 1, from a "25
spring carrier-beam 8, and its lower end clamp
ingly, gripped flinting vstone 9 is transversely
swung, as by crank wheel l0 and pitman VI I, across
va width of paperfed over a ?at paper-supporting
bed l2. The paper, indicated by dotted lines [3, 30
is progressively fed forward by any usual means
not-necessary to show, and it will be readily un
derstood that best glazing action of the flinting
stone requires accurate adjustment and satisfac
tory uniform frictional pressure of the stone 35
across the entire widthof the paper to secure
even glazing results on the color coated surface
and avoid uneven paper thickness.
7
'
-
. The-provisions of the aforesaid Hallman patent
provided for satisfactory results at a given speed 40
paper; and contrary, those produced by increased ‘of paper feed and reciprocation of the radius-bar
speed of the polisher bar, projecting upward at ‘polisher. Without adequate provision for equal
such‘ mid-width point, with both edges sagging izing the action of the radius bar, slow movement
tends tothin the paper midway of its width, caus
due to reduced thickness, clearly disclosing shift
ing a concave surface when sheets are piled one 45
ing toward such edges of the greatest pressure uponltanother as indicated in Fig. 4. Increase of
points.
"
W speed tends, as heretofore described, to shift such
This shifting of the pressure points at high ‘paper, thinning to the lateral edges, causing'a
speed is a demonstrable fact, which may beac convex surface in piled up sheets, as indicated in
it. o counted for by varying theories, but I havefou'nd ‘Fig. 5. (‘Neither concave nor convex sheets are_50
means to counteract this shaft and satisfactorily
,uniformly distribute the'pressure of theradius
.bar, and my present improvements relate tosuch
means, and will be more fully described
$5
con
‘satisfactory especially when the paper is intend- ‘ ;
ed to be fed to automatic printing presses.
Fig. 6' indicates desirable ?at piling up of satis
factorily-uniformly treated sheets, and whatever
nection with the accompanying drawing, and the explanation may be advanced to account for ac- “5,5
2
2,057,081
tual shifts of the pressure points at increased
speeds, I have found that such satisfactory results
may be practically secured at speed increase ap
proximately one-third or more than that here
tofore found practical, by employment of my ma
chine improvements, the preferred embodiment
standards 36, 36; said brackets having inclined
rests 31, 31 engaging only the extreme ends of
the bed wood 25, which ends may have metal wear
plates if desired, and provide bed-centering screws
38, 38 in the respective brackets 35, 35. This ex
treme end support of the bed 25 not only provides
vibrating beam-end by resilient means, shown as
for maximum resilience of its paper supporting
surface, but also provides for very accurately ad
justing the position of the latter relative to the
reciprocating ?inting stone 9, and in practice co 10
operates with the resilient support for the end
of the spring beam 8 to produce an equalized
?inting action on the paper across the entire
width of the latter.
This improved mounting of the novel paper 15
supporting bed I2 providing a pressure yielding
resistance to the action of the radius bar polisher 6
reciprocatively traversing its width, I ?nd essen
tially aids and cooperates with the resilient con
trol of the spring beam vibrations, and enable 20
me to satisfactorily secure ‘a practical equaliza
tion of the frictional pressure of the ?inting
stone 9' across the entire width of the forwardly
fed paper strip l3, with the result of a glazed
springs I9 engaging between said plate l8 and
surface of more uniform color and an even paper 25
a platform 20 adjustable, as by screw 2|, relative
thickness, with a material increase in output at
the higher speed of operation I am enabled to
obtain.
The preferred embodiment of my invention
shown in the drawing, and now to be fully de
scribed, comprising a counter-acting tensioning
means or resilient rest for one end of the spring
10 carrier-beam, and a resilient surface and special
mounting for the ?at paper-supporting bed.
Adjustable frictional pressure of radius bar 6
is provided, as heretofore, by tension applied, as
by screw-jack l5, to carrier-beam 8, intermediate
15 its length, and one end of said bar, held in a
?xed supporting bracket I6, and the radius-bar
pivotal connection ‘I, secured adjacent the other
end of said bar. At the radius-bar end of said
beam 8, heretofore left free to vibrate, I have
20 shown in the drawing a resilient support in the
form of a ?xed carrier-bracket 11, having a ver
tical slide-way for a beam rest plate l8, mov
ably held in contact with the under side of said
to plate I8 to regulate the tension of said
springs IS.
The actual and demonstrable shift of excess
pressure of the radius-bar polisher from midway ' above fully described, operates in actual produc '30
to the lateral edges of the paper, when the speed tion with most satisfactory results, but it is obvious
that modi?cations of the construction described
of operation is increased, is probably best ac
counted for by rebounding tendency of the more may secure equally satisfactory results. For in
frequently vibrated beam-end, and perhaps a stance, it is conceivable that the spring beam end
push and pull in?uence through the pitman recip
may be left free to vibrate, and supports of the re- ‘
rocating the radius-bar. but whatever the cause,
silient nature shown for such end, be applied in
stead to each end of the paper supporting bed l2 in
lieu of, or in conjunction with, the inclined rests
31, 31 described as supports for said bed. Other
by resiliently supporting the vibrating beam-end,
as above described, excess pressure at the lateral
edges may be counteractingly controlled. In
practice I have found that by raising the spring
platform by the adjusting screw 2| to increase
the tension of the springs [9, the excess pressure
is moved laterally inward toward the center of
the paper; and contrary, by weakening the
45 springs, the excess pressure moves outwardly to
ward the edges of the paper.
To cooperate in the production of better out
put, I have found it advantageous to reconstruct
and mount the paper-supporting vbed l2, which
is of a length to support the widest paper to be
operated upon and a narrow width in the direc
tion of the paper feed su?icient only to form a
support beneath the reciprocated flinting stone 9.
As shown the bed is formed of a suitable length
55 of proper-sized wood 25, thickened or interme
diately reenforced on its under side for a major
portion of its length by a strip of wood 26 of
similar cross-section, and its upper surface hav
ing ends blocks 21, 21 spacedly carrying a metal
60 strip 28 upon which is preferably secured a paper
or wood ?bre wearing strip 29 on which the paper
rests; and the space between the metal strip 28
and bed wood 25 is preferably ?lled by a suitable
strip 30 of non-conducting cushioning material,
as cork or the like.
The metal strip 28, between
its end supports 21, 21, tends to bend under the
pressure of the reciprocated radius bar 6,‘ and
this bending actionis cushioned by the resilient
strip 30,’ which further insulates the bed wood 25
‘from any heat developed by the friction of ?int
ing stone 9. And further, in order that the bed
I2 may have any needed further resilience of
spring inv its wood members 25 and 26, I preferably
mount the bed, as shown, in end carrier brackets
35, 35 secured respectively to‘ spaced supporting
modi?cations may later occur, and it is my in- '
tention to include any such modi?cations that
may be developed within the spirit of my invention
as set forth in the following claims.
What I claim is:
1. In a machine for glazing continuously-fed
paper or the like comprising a flat paper-support
ing bed, a transversely reciprocable radius-bar
polisher, a spring carrier beam for the latter pro
vided with tensioning means to regulate the pres
sure applied to the paper by said polisher,.and:_
means to rapidly reciprocate said radius bar;
means to approximately equalize the pressure of
said polisher in its movement across said paper
comprising a yielding bed, a paper supporting
plate, and a non-heat conducting resilient cushion
interposed between said paper supporting plate
and said yielding bed.
2. In a machine for glazing continuously-fed
paper or the like comprising a ?at paper-support
ing bed, a transversely reciprocable radius-bar}
polisher, a spring carrier beam for the latter pro
vided with tensioning means to regulate the pres
sure applied to the paper by said polisher, and
means to rapidly reciprocate said radius bar;
means to approximately equalize the pressure of‘
said polisher in its movement across said paper
comprising a vibration controlling spring-ten
sioned support for the end of said spring carrier
beam.
'
'
‘3. In a machine for glazing continuously-fed
paper or the like comprising a ?at paper-support
ing bed, a transversely reciprocable radius-bar
polisher, a spring carrier beam for the latter pro
vided with tensioning means to regulate the pres
sure applied to the paper by said polisher, and: 75
3
2,057,081
means to rapidly reciprocate said radius bar;
means acting on said spring carrier beam to
counteract excess pressure of said polisher at the
extremes of its reverse swings induced by its rapid
reciprocation, comprising a vibration controlling
adjustably tensioned spring support for the end
of said spring carrier beam.
4. In a machine for glazing continuously-fed
paper or the like comprising a ?at paper-support
10 ing bed, a transversely reciprocable radius-bar
polisher, a spring carrier beam for the latter pro
vided with tensioning means to regulate the pres
sure applied to the paper by said polisher, and
means to rapidly reciprocate said radius bar; end
15 supporting brackets for said paper-supporting
bed having inclined rests adapted to engage only
the extreme ends of said supporting bed.
5. In a machine for glazing continuously-fed
paper or the like comprising a ?at paper-support
20 ing bed, a transversely reciprocable radius-bar
polisher, a spring carrier beam for the latter pro
vided with tensioning means to regulate the pres
sure applied to the paper by said polisher, and
means to rapidly reciprocate said radius bar; a
25 resilient cushion beneath the bearing surface of
said paper-supporting bed, and end supporting
brackets for the latter having inclined rests
adapted to engage only the extreme ends of said
supporting bed.
30
6. In a machine for glazing continuously-fed
paper or the like comprising a ?at paper-support
ing bed, a transversely reciprocable radius-bar
polisher, a spring carrier beam for the latter pro
vided with tensioning means to regulate the pres
sure applied to the paper by said polisher, and
means to rapidly reciprocate said radius bar; a
resilient cushion beneath the bearing surface of
said paper-supporting bed, supporting brackets
for the latter having inclined rests engaging only
the extreme ends of said supporting bed, and a
vibration controlling spring rest for one end 01'
10
said spring carrier beam.
'7. In a machine for glazing continuously-fed
paper or the like comprising a ?at paper-sup
porting bed and a transversely reciprocated radius
bar polisher; a spring carrier beam for the latter
provided with intermediate tensioning means to 15
regulate the pressure applied to the paper by said
polisher, a ?xed support for one end of said beam,
and an adjustable resilient support for the oppo
site end of beam.
7
8. In a machine for glazing continuously-fed
paper or the like comprising a ?at paper-support
ing bed and a transversely reciprocated radius bar
polisher; a spring carrier beam for the latter
provided with intermediate tensioning means to
regulate the pressure applied to the paper by said
polisher, a ?xed support for one end of said beam,
a carrier bracket for the opposite end of said beam
having a spring tensioned platform vertically
movable in said bracket, and means for ad
justing the supporting tension of said platform.
WALTER E. BROWN.
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