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Патент USA US3080823

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March 12, 1963
w. R. KING
3,080,812
CIRCULAR MARKING DEVICE
Filed Aug. 21, 1959
2 Sheets-Sheet 1
-
INVENTOR.
William R. King
@ AT TORNEZS
March 12, 1963
3,080,812
w. R. KING
CIRCULAR MARKING DEVICE
Filed Aug. 21. 1959
17a
90
2 Sheets-Sheet 2
\ A_-m
I70
INVENTOR.
-
William R. King
WWW
-
4 ATTORNEYS
:i?bh?ig
gnlited States I atet '
Patented Mar. 12, 1%53
2
1
upon the mass of yieldable material which permits ad- I
3,080,812
CIRCULAR MARKING DEVICE
William R. King, Wiikinshurg, Pa., assignor to Jas. H.
Matthews & Co., Pittsburgh, Pa., a corporation of
Pennsylvania
Filed Aug. 21, 1959, Ser. No. 835,326
9 Claims. (Cl. ?ll-36)
justment of the position of the die to compensate for ir
regularities in the work. Desirably a bushing is mounted
for rotation and the mass of yieldable material is dis
posed upon the peripheral surface of the bushing and the
circular marking die is mounted upon the 'yieldable ma:
terial.
‘
"
In a preferred form my circular marking device com
prises a bushing mounted for rotation, a band of yield
This invention relates to a'circular marking device and
particularly a circular marking device for marking elon 10 able material disposed peripherally about the bushing, a
circular marking die mounted upon the band of yieldable
gated Work moving relatively to the marking device in
material, the die having marking means at its periphery,
generally tangential contact therewith as the marking
device rotates.
Such a markingdevice may be used for
marking elongated work of a variety of shapes. An
example is pipe or tubing. For purposes of explanation
and illustration in describing the invention and its ap
plication it will be considered as employed for the mark
ing of tubing.
Heretofore in the marking of tubing by a circular mark
ing device involving moving the tubing relatively to the
marking device in generally tangential contact therewith
as the marking device rotates it has been customary to
employ a marking device of different shape for each
diameter of tubing being marked. The marking die or
roll has been shaped to a curvature matching that of. the
.tubing being marked. The ‘tubing has been pressed
means opposed to the marking means for pressing there
against work to be marked thereby, the band of yieldable
material permitting adjustment of the position of the die
to compensate for irregularities in the work, and guide
members of yieldable material disposed at opposite sides
of the die and projecting generally radially beyond the
periphery of the die for guiding the work relatively to
20 the die, the projecting portions of the guide members
being adapted to yield somewhat to permit the work to
engage the marking means while guiding the Work. At
least one of the guide members is preferably integral with
the band of yieldable material. I preferably apply plates
to the outsides ‘of the guide members and fasten together
the die, guide members andplates to constitute a com
against the marking die by a ?xed back-up roll mounted
posite generally roll shaped element.
in opposed relationship to the marking die. The back-up
band are employed they are fastened together with the
die, guide ‘members and plates to constitute a composite
If the bushing and '
roll has also been shaped to a curvature matching that
of the tubing being marked. 'It has been necessary to 30 generally roll shaped element.
change both the marking roll and the back-up roll with
each ‘change in the diameter of the tubing being marked.
Also any irregularity in the tubing resulted in undesirable
deformation of the tubing when passing between the
marking roll and the back-up roll since those rolls acted
on the tubing in unyielding fashion:
‘I
g I provide a circular marking device obviating the dis
advantages of'theprior devices as above referred to. My
marking device is adapted for use to mark elongated
work of a range of transverse dimensions, or,‘ in the case
of tubing of circular external cross section, of a range
of outside diameters. Also I make provision for com
pensating for irregularities in the work being marked'so
that the Work will not be undesirably deformed during
Other details, objects and advantages of the invention
will become apparent as the following description of cer
tain' present preferred embodiments thereof proceeds.
In the accompanying drawings I have shown certain
present preferred embodiments of the invention in which
FiGURE l is a perspective view of a circular marking
roll;
,
v
7 FIGURE 2 is an end view ofa circular marking device
employing a markinglroll as shown in FIGURE 1; ,
FiGURE 2a is a view similar to FIGURE 2 showing f
the marking device operating on a tube of smaller size
than-that shown in FIGURE 2;
.
FIGURE 3 is an exploded view of the circular marking
roll shown in FIGURE 1;
the marking operation. Myimproved marking device
provides for optimum engagement and advancement of
the work at relatively high speed and ‘marks the work
sectional view through a modi?ed form of marking roll
uniformly withoutundesirable deformation thereof de
ameter tubing;
spite irregularities therein. _.;Neither the marking roll-nor
the‘ back-up roll needbe-changed‘when-the transverse
‘dimension of'the' work being “marked is changed within
a considerable range.
l
'
7
.
'
I provide a circular marking device for marking elon
gated work moving relatively to the marking device in
generally tangential contact therewith asthe marking de
vice. rotates comprising a circular marking die mounted
7 FIGURE 4 is an enlarged fragmentary central cross
showing itsadaptahility for marking relatively small di
'
.
FIGURE 5. is a Viewv similar to FIGURE
‘
showing ,
the adaptability vof the roll-illustrated in FIGURE 4Qfo1' j
marking relatively large diameter tubing; .
FIGURE 6 is a diagram showing how my circular
marking device compensates for sidewise or snake varia—
tions in the work; and
FIGURE 7 is a' diagram showing how my circular‘
marking device compensates‘ for vertical or wave varia
trons in the work.
for rotation, the die having marking means at its periph
Referring now more particularly to the drawings, one
ery, means opposed to the marking means for pressing
thereagainst work to be marked thereby and guide means 60 form of'myvmarkin'g roll is shown in perspective in FIG- .
having‘ yieldable portions disposed at opposite sides of the VVURE 1 and'is shown together'with a back-up roll in
FIGURES 2' and 2a and also is shown disassembled in
die and projecitinggenerallyradially beyond the periphery '
the exploded view of FIGURE 3. The marking roll is =
of the die for guiding the work relatively to the die, said
designated generally by reference numeral -2 and the
portions of the guide means being adapted to yield some- I
what to permit the work to engage'the marking means 65 back-up roll by reference numeral 3,, the machine or
device comprising the roilsl, and t3 constituting my’
while guiding the work. 1 The yieldable portions of the
guide means may have beads extending over the side
portions of the periphery of the die generally toward the
circular marking device.
.
The principal element of the marking roll is the cir
cular marking die designated generally by reference nu
marking means on the die to facilitate guiding of work
of relatively small transverse dimension.
70 meral 4, itself in the form of a roll having a hub receiving
portion 5 and a relatively thin ?ange portion 6 whose
I preferably provide a mass of ‘ yieldable material
periphery is somewhat concaved as shown at 7 and has
mounted for rotation and mount the circular marking die
8,080,812
4
marking means 8 therein, normally in the form of raised
letter or other form die means.
I provide a bushing 9 of bronze or any other suitable
material adapted to be applied to a shaft. The bushing
has a bore 9a therethrough to receive the shaft. Dis
posed about the bushing is a mass of yieldable material
10 shown as in the form of a band of rubber or rubber
shown are provided for inking the marking means. Al
though the shaft upon which the back-up roll 3 is
mounted is disposed in ?xed position so that it is non
yielding it is nevertheless adjustable toward and away
from the shaft upon which the marking roll is mounted
to insure application of the correct backing-up pressure
to tubing of the particular diameter being marked at any
given time.
like plastic. The band 10 may be molded onto the
bushing 9; in any event the bushing and band are as—
FIGURE 2a shows a relatively small tube 22 which
sembled in ?xed relationship and to all intents and pur 10 is adapted to be marked by use of the marking and back
poses constitute a single element. The bushing serves to
ing-up rolls which are the same as in FIGURE 2. When
marking the relatively small diameter tubing as ‘in FIG
mount the marking roll for rotation while the band serves,
URE 2a the backing-up roll is adjusted much closer to
as will be explained, as a hub to mount the die 4.
the marking roll than in the position in which the back
The external diameter of the band 10 is such that the
band has a snug ?t in the bore 11 of the die 4. The 15 ing-up roll is shown in FIGURE 2 since the position of
the backing-up roll in that ?gure is determined by the
bushing 9 with the band 10 thereon is inserted into the
relatively large tube 20. Since the curvature of the c0u~
bore 11 of the die 4 and serves as a mounting for the
die. The die is thus mounted in ?xed rotative position
cave periphery of the backing-up roll 3 is somewhat
greater than the curvature of the largest size tube to be
when not subjected to stress. When, however, the die
is subjected to certain stresses as will be explained the 20 marked the central portion of the periphery of the back
ing-up roll will engage and press against whatever size
material of the band It) yields and allows the die to
tube is being marked to insure proper cooperative rela
recede or tilt. Guide members of yieldable material
tionship between the tube and the marking means 8 with
and which may be of the same material as the band 10
accompanying yielding or deformation of the guide mem
are applied at the outside faces of the die 4. One of the
bers 12 and 13 as above explained.
guide members is designated generally by reference nu
meral 12 and the other by reference numeral 13. In the
The rolls of the circular marking device may be driven
structure shown the guide member 13 is formed integrally
to advance the work therethrough or they may be turned
with the band 10 although it may be formed separately.
by the action of the work thereon, other means being
provided for advancing the work through the circular
Each of the guide members 12 and 13 has a recess 14
receiving the portion 5 of the die 4 at one side of the 30 marking device. In either case the guide members of
die, the hub receiving portion 5 being symmetrical about
yieldable material in addition to properly positioning the
the central plane of the die. The inner surfaces 15 of
work for marking exert a substantial grip on the work
the guide members lie substantially ?ush against the side
faces of the ?ange portion 6 of the die. The guide
means 8 which might deface thernarking. This is true
member 12 has a bore 16 of substantially the same
diameter as the bore 11 of the die 4 so that the end of
of power to the shaft upon which it is mounted or whether
the composite element constituted by the bushing 9 and
the band 19 ?ts in the bore 16 and the outer face of
that composite element is substantially ?ush with the
outer face of the guide member 12. Similarly the outer
face of the guide member 13 is substantially flush with
the opposed outer face of the composite element con
sisting of the bushing 9 and the band 10.
and prevent slippage between the work and the marking
whether the marking roll is driven through the application
it is turned by the action of the advancing work which
is imparted to the guide members 12 and 13 and thence
to the remaining elements of the marking roll since all
of those elements are fastened together as explained above.
My marking roll accommodates or compensates for
irregularities in the tubing being marked. Sidewise varia
tions in the tubing are called snake variations while
vertical variations are called wave variations. A tube may
are applied to the assembly of the bushing, band, die and 45 have a combination of snake and wave variations. The
Plates 17 having central openings 17a therethrough
guide members'and lie against the outside faces of the
guide members although they are of less diameter than
the guide members. The parts are held in assembled
relationship by screws 18a passing through holes 18 in
the plates and threaded into threaded holes 19 in the 50
bushing 9.
. '
The guide members 12 and.l3 are of greater diameter
than the die 4 and preferably have their peripheral edges
variations may be caused by non-uniformity of the diam
eter of the tube or by imperfections of various kinds
occurring either in manufacture of the tube or in handling
of the tube after it is manufactured.
FIGURE 6 shows how themarking roll compensates
for snake variations in the tubing. The yieldable band
10 permits the roll to tilt‘ slightly under the action of
snake variations maintaining the tubing in ‘proper, coopera
' inclined inwardly‘ toward the periphery of the'die mem
tive relationship with the marking means}. Wave variaé
ber as shown in the drawings. FIGURE 2 shows a tube
65 tions are compensated tor‘as illustrated in FIGURE‘ 7,
20 being marked and shows how the tube.is guided by
the guide members 12 and 13 to be marked by the mark—
‘ing means 8 on the die 4. The back-up roll 3 is mounted
upon a shaft having a ?xed axis and the periphery of
the band 10 permitting the marking die to yield for recede
‘away from a downward wave in the tube. Also the guide
members 12 and 13 which are of yieldable material at
least at their peripheral portions cooperate with the
yieldable band 10 to insure continuous proper gripping
diameter somewhat larger than the largest diameter of 00 and guiding of the work while the irregularities or imper
tubing to be marked using the marking roll with which
fection in the work are passing through the circular mark
the backing-up roll cooperates. The backing-up roll in
ing device.
‘
.
‘
sures that the tubing is pressed'against the marking roll
- FIGURES 4 and 5 show a marking roll‘which is the
as it passes between the backing-up roll and the marking
same as the marking roll 'shown'in the ‘remaining ‘?gures
roll, and ‘the guide members 12 and 13 yield under thev 65 ‘except, that the guide members 12' and 13' of FIGURES
pressure exerted against them by thetubing being marked
4‘ and 5 are each ‘provided ‘with a‘ head 23 extending over
as they guide the tubing into proper relationship‘. with
the side portions‘of the periphery of the die 4' generally
the marking means 8. The material of the guide means
toward the marking means 8' on the die to facilitate
will yield. to whatever degree is required, depending upon 70 guiding of ‘work of relatively small transverse dimension.
the diameter of the tubing being marked, to bring the
This is illustrated particularly in FIGURE 4 in which
tubing into position so that the marking means 8 will
a relatively small tube 22’ is shown as being marked by
properly act thereon. The marking may be effected by
the marking means 8' of the die 4’. The tube 22' is
indenting or engraving the surface of the tubing or by
so small in relation to the size of the marking roll that
printing thereon, in which latter case inking means not 75 without the provision of the beads 23 it could conceivably
the back-up roll 3 is concaved as-shown at 21 to a
3,080,812
5
mainly by the beads 23 which yield as the tube 22’ is
pressed by the back-up roll toward the die and permit ef
fective marking of the tube. FIGURE 5 shows a rela
tively large diameter tube 20' being marked by the same
die as is shown in FIGURE 4. In this case the beads 23
have no special function as the guiding of the relatively
large diameter tube is e?ected mainly the portions of
the guide members 12' and 13’ outwardly from the beads
23.
5
means opposed to‘ the marking means vfor pressing there
against work to be marked thereby, the hub of yield
able material and the circular marking roll mounted
‘thereupon being mounted for rotation in such direction
that the marking means ‘at the periphery of the- roll
against which the work is pressed move in the direction
of advance of the work, said hub of yieldable material
permitting adjustment of the position of the roll to com
pensate for irregularities in the work, and guide means
simply wedge the guide members 'apart without being
e?ectively guided thereby. The tube 22' is supported
having yieldable portions disposed at opposite sides of
the roll and projecting generally radially beyond the
,
periphery of the roll for guiding the work relatively to
While I have shown and described certain present pre
ferred embodiments of the invention it is to be distinctly '
understood that the invention is not limited thereto but
may be otherwise variously embodied within the scope 15
the roll, said portions of the guide means being adapted
to yield somewhat to permit the work to engage the
of the following claims.
,I claim:
I. A circular marking device for marking elongated
Work advancing relatively to the marking device com
vtoward the‘ marking means on the roll to facilitate guid
marking means while guiding the work, said portions
of the guide means having beads extending over 'the
side portions of the periphery of the roll generally
ing of work.
5. A circular marking device for marking elongated
work advancing relatively to the marking device in gen
prising a hub of yieldable material, a circular marking roll
mounted upon the hub of yieldable material in generally
tangential contact with which the work advances, the roll
erally tangential contact therewith as the marking de- ,
~vice rotates comprising a mass ofyieldable material, a
having marking means at its periphery, and means op
circular marking die mounted upon the mass of yield
posed to the marking means for pressing thereagainst work
to be marked thereby, the hub of yieldable material and 25 able material, the die having marking means at‘its pe
riphery, means opposed to the marking means for press
the circular marking roll mounted thereupon being mount
ing thereagainst work to be marked thereby, the mass
ed for rotation in such direction that the marking means
of yieldable material and the vcircular marking die
at the periphery of the roll against which the work is
‘mounted thereupon being mounted for rotation in'such
pressed move'in the direction of advance of the work
the yieldable material permitting adjustment of the posi 30 direction that the marking means at the periphery of the
die against which the work is pressedmove in the di
tion of the roll to compensate for irregularities in the
rection of advance of the Work, said mass of yieldable
work.
material permitting'adjustment of the position of ‘the
2. A circular marking device for marking elongated
die to compensate for irregularities in the work, and
work advancing relatively to the-marking device compris
ing a bushing, yieldable material disposed upon the periph
35
guide means having yieldable portions disposed at op
posite sides ‘of the die and projecting, generally radially
beyond the periphery otthe die‘for guiding the work
eral surface of the bushing and constituting a hub, a
circular marking r'oll mounted upon the hub of yield
able material in generally tangential contact with which
the work advances, the roll having marking means at ‘its
relatively to the die, saidportions of the guide means
being adapted to yield somewhat to permit the work to
periphery, and means opposed to the marking means for 4.0 engage the marking means while guiding the work, the
pressing thereagainst work to be marked thereby, the bush- .
guide meansat at least one side of the die beingintegral j, t
ing and hub of yieldable material and the'circular marking
with the mass of yieldable material. ‘ '
7
6; A circular marking. device for-marking elongated
.- roll mounted upon the hub of yieldable material being
work advancing relatively to the marking device in gen
mounted for rotation in such direction that the marking
means at the periphery of the roll against which the 45 erally tangential contact therewith as the marking de
vice rotates comprising a bushing, a band of yieldable
work is pressed move in the direction of advance of the
material disposed peripherally about the bushing, a cir
work, the yieldable material permitting adjustment of the
cular marking die mounted upon the band of yieldable
material, the die having marking means at its periphery,
means opposed to the marking means for pressing there
against Work to be marked thereby, the bushing and
band of yieldable material and the circular marking die
_mounted upon the band of yieldable material ‘being
position of the roll to compensate for irregularities in
the work.
3. A circular marking device for marking elongated
work advancing relatively to the marking device com
prising a hub of yieldable material, a circular marking roll
mounted upon the hub of yieldable material in generally
tangential contact with which the work advances, the
mounted for rotation in such direction thatthe marking »
roll having marking means at its periphery, means op~ 55 means at the periphery of the die against which work is
posed to the marking means for pressing thereagainst
pressed move in the direction of advance of the work,
work to be marked thereby, the hub of yieldable material
the band of yieldable material permitting adjustment of
1 and the circular marking roll mounted thereupon being
mounted for rotation in such direction that the marking
the position of the die to compensate for irregularities
'in the Work, and guide members of yieldable material
disposed at opposite sides of the die and projecting gen
means at the periphery of the roll against which the Work
is pressed move in the direction of advance of the work, ~
erally radially beyond the periphery of the die for guid
said hub of yieldable material permitting adjustment of
the position of the‘ roll to compensate for irregularities‘
. ,ingthe work relatively to the die, the projecting portions
in the work, and guide means having yieldable portions
disposed at opposite sides of the roll and projecting gen
erally radially beyond the periphery of the roll for guiding
of the guide members being adapted to yield somewhat
' to .permit the worki‘to engage
765 guiding the Work.
the marking means while
7.
j
v
the Work relatively to the roll, said portion of the guide
7. A circular marking-device for marking elongated
‘work’ advancing relatively to the marking device in gen
means being adapted to yield somewhat to permit the work '
to engage the marking means while guiding the work.
erallyv tangential contact therewith as the marking de
vice rrotates comprising a bushing, a band of yieldable
4. A circular marking device for making elongated 70 material disposed peripherally about the bushing, a cir
cular ‘marking die mounted upon the band of yieldable
work advancing relatively to the marking device com
material, the die having marking means at its periphery,
prising a hub of yieldable material, a circular marking
roll mounted upon the hub of yieldable material in
' generally tangential contact with which the work ad
means opposed to the marking means for pressing there
again‘st work to be marked thereby, the bushing and
vances, the roll having marking means at its periphery, 75 band of yieldable material and the circular marking die
8,080,812
7
8
‘mounted upon the band of yieldable material being
vice 'rotates'lcomprising a bushing, a band of yieldable
‘mounted for rotation in such direction that the mark
ing means at the periphery of the die against which
material disposed peripherally about the bushing, a cir
cul‘ar marking die mounted upon the band of yieldable
material, the die having marking means at its periphery,
work is pressed to move in the direction of advance of
the work, the band of yieldable material permitting ad
justment of the position of the die to compensate for
means opposed to the marking means for pressing there
against work to vbe marked thereby, the bushing and
irregularities in the work, and guide members of yield
band of yieldable material and the circular marking die
mounted upon the band of yieldable material being
mounted for rotation in such direction that the marking
able material disposed at opposite sides of the die and
projecting generally radially beyond the periphery of the
die for guiding the work relatively to the die, the pro
jecting portions of the guide members being adapted to
means at the periphery of the die against which the work
is pressed move in the direction of advance of the work,
yield somewheat to permit the work to engage the mark
ing means while guiding the work, at least one- of the
the position of the die to compensate for irregularities
the band of yieldable material‘ permitting adjustment of
guide members being integral with the band of yieldable
material.
in the work, guide members of yieldable material dis‘
15 posed at opposite sides of the, die and projecting gen
'
8. A circular marking device for marking elongated
erally radially beyond the periphery of the die for guid
work advancing relatively to the marking device in gen
erally tangential contact therewith as the marking de
vice rotates comprising a circular marking die, the die
having marking means at its periphery, means opposed
to the marking means for pressing thereagainst work to
be marked thereby, the circular marking die being
mounted for rotation in such direction that the mark
ing means at the periphery thereof against which the
work is pressed move in the direction of advance of the 25
work, guide members of yieldable material disposed at
opposite sides of the die and projecting generally radi
ing the work relatively to the die, the projecting por
tions of the guide members being adapted to yield some
ally beyond the periphery of the die for guiding the
work relatively to the die, the projecting portions of
the guide members being adapted to yield somewhat to 30
‘permit the work to engage the marking means while
guiding the work, plates applied to the outsides of the
guide members and means fastening together the die,
guide members and plates to constitute a composite gen
crally roll shaped element.
'
9. A circular marking device for marking elongated
work advancing relatively to the marking-device in gen
erally tangential contact therewith as the marking de
35
what to permit the Work to engage the marking means
while guiding the work, plates applied to the outsides of
the guide members and means fastening together the
bushing, band, die, guide members and plates to con~
stitute a composite generally roll shaped element.
References Cited in the ?le of this patent
UNITED STATES PATENTS
1,369,450
1,370,851
1,549,595
2,326,670
2,326,671
‘2,326,954
2,424,006
Manss ______________ .._ Feb. 22,
Sligh ________________ __ Mar. 8,
Merrill ______________ __ Aug. 11,
Patterson ____________ .. Aug. 10,
Patterson ____________ __ Aug. 10,
MacAnlis ____________ .. Aug. 17,
Verrinder ___________ -_ July 15,
1921
1921
1925
1943
1943
1943
1947
2,631,535 ‘
Mumma _____________ __ Mar. 17, 1953
2,674,944
Kalstrorn ._.......;...;. ____ _‘___ Aug. '13, 1954
486,292
Great Britain _________ -_ June 1, 1938
FOREIGN PATENTS
UNITED STATES PATENT OFFICE
CERTIFICATE OF CORRECTION
Patent No, 3VO8O,8l2
I
William
March 12,
1963
King
It is hereby certified that error appears in the above numbered pat
ent requiring correction and that the said Letters Patent should read as
corrected below.
Column 5v line 9v after l‘mainly" insert —— by ——; line
29Y after "work" insert a comma; line 67, for "portion"v read
—— portions ——; line 70v for "making" read -—'marking -—;
column 7‘, line 4? strike out "to"°
Signed and sealed this 29th day of October 1963.
(SEAL)
Attest:
ERNEST we
SWIDER
Attesting Officer
-
AB sill;
Commissionerof Patents
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