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Патент USA US2120714

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June 14, 1938.
w. c. scoTT
2,120,714
PRINTING OR OTHER MACHINE
Filed June 11, 1936
2 Sheets-Sheet l
INVENTOR
ATTORN EY
June 14, 1938.
w. c. scoTT
2,120,714
PRINTING OR OTHER MACHINE
Filed June 11, 1936
2 Sheets-Sheet 2
INVENTOR
Waller (1 62m?
ATTO R N EY
2,120,714
Patented June 14, 1938
UNITED , STATES
PATENT ‘OFFICE
2,120,714
rmm'me on OTHER Macnmn
Walter 0. .Scott, Pia-infield, N. J.
Application June 11, 1936, Serial No. 84,678
20 Claims. (Cl. 210-5)
This invention relates generally to printing or pendently
supporting rotatable
shaft 6. inAtthe
least
same
one direction
of these on
com
other machines and has more particularly ref
erence to a system of speed control associated
therewith. The main object and feature of the
trol
axially
members,
and is normally
here Y, urged
is movable
towardsidewise
the ot"
member by a spring 2. Control member ..
provided with a series of arcuate or segme:1
grooves 3 of taper formation, that is, one e
so by simple and effective means.
In the accompanying drawings the invention ' 4 is deeper than the other end 5. Control n
ber Y is provided with a continuous surfa
is disclosed in one form in which:
“
Fig. 1 is a more or less diagrammatic view, Balls '5 are located in grooves 3 of memb
10
and engage continuous surface’? of memb‘
partly in section;
Fig. 2 is a longitudinal sectional view of one \~ It will be understood that, when bails "
in deep end it of the grooves, spring 2 will hm:
of the control mechanisms; and
Y close together but that, 1:‘
Fig. 3 is a transverse sectional view substan- - members X
the balls are in shallow end 5 of the groove.
15 tially on the plane of line 3-—3 of Fig.
the oamming action of said balls will force me
Referring to Fig. 1, A and B indicate a plu
bers
X and Y apart against the tension of spr
rality of devices or units. For the purpose of
5 invention is to coordinate the speed relationship
of separately driven devices or units, and to do
arbitrarily distinguishing between these devices,
A will be referred to as the “primary” device, and
20 B as “secondary" devices. In the present case
the plurality of devices or units is greater than.
two, and consist of the printing and folding units
of a printing machine, the folding unit A of
which constitutes here the “primary” device and
25 the printing and perfecting units or couples B
2. The position of the balls. in the grooves
controlled
bers X andby‘l‘,the
and
relative
it
speed
be understood
of co
oithat,
me so go
long as the speed of member X is greater the";
'
main
or equal
in the
to that
deepof end
member
of the
Y", grooves
the ballsbut
wi: that,
when the speed of member Y exceeds th '
"
member X, the balls will move toward the
low end of the grooves and force membe
of which constitute here the “secondary” devices.
It is unnecessary to describe theoperation of a ' and Y apart. A control element Z is pivt.H,
machine of this character except to say that webs 1y supported at 8 and is normally urged
are led to the printing couples and are thereafter engagement with member ‘52' by spring 9
it will be understood that the sliding movem
30 associated and folded in the folding mechanism
of Y eii'ects or permits a corresponding mo
known as a “former folder”.
So far as certain features of the invention are ment of control element 2, which movemenu
concerned, the speed control mechanism may take be utilized to govern a clutch, a rheostat, "'
pulleys and belts or what-not as fully explal
many forms but, preferably, the control mech
in my said application Ser. No. 60,423 above
35 anism disclosed and claimed in my application
Ser. No. 60,423, ?led January 23, 1936, will be ferred to.
utilized because, owing to its simplicity and effec
60,423,
As disclosed
the several
in my
devices
said or
application
units can Ser.
he s
tiveness, it constitutes an almost ideal mecha
nism for use in connection with a printing or arately driven from a, single prime mover
any suitable means through speed change me
40 ‘other machine where the speed of a plurality of
units greater than, two is to be coordinated. As
a matter of convenience, therefore, and for the
purpose of ‘bringing out certain features of the
‘ invention, the particular control mechanism here
employed will now be described, it being under
stood that the invention in all its aspects is not
limited to the control mechanism so described.
The control mechanism is indicated by O and
it will be noted that there is a separate control
mechanism associated with each of the second
ary units or devices and, as will presently be ex
plained, all the control mechanisms are asso
ciated with the primary device or unit. Each
control mechanism consists of two control mem
bers x and Y arranged side by side and inde
anisms such as the well-known Reeves (1
which could then be under the control of cones
elements Z. In the present disclosure the s
eral units are not only separately driven
are driven from independent motors. As seem
in'Fig. 1, motor C drives folder A by means
‘
suitable transmission means indicated at It, and.
motors D drive printing units B by means of
suitable
cylinderstransmission
of each printing
meansand
indicated
perfecting
at H,
couple -~
being intergeared in the usual way. Folder A
drives a shaft l2, extending along the different
units, by suitable transmission means l3, and
control member X of each control mechanism is
driven from shaft I2 by- suitable transmission 55
2,120,714
2
means ll. Control member Y of each control
mechanism is driven from the printing and per
speed of units B, each of said units B being
governed by a different control mechanism 0,‘
fecting couple with which it is associated by
suitable transmission means I5. All the motors
are connected in parallel to leads L, and motor
C can have its speed controlled by a suitable
means such as rheostat R. The circuit of each
of motors D is here controlled by a rheostat R’
of which control element Z forms the movable
10 member. The desired relative speed is estab
lished by suitable gear ratios. In some printing
machines the folder runs at say half the speed
of the printing units, but in the present instance
both the folder and the printing units run at the
same speedfand the gear ratio, accordingly, is
15
such that, when the folder and a printing unit
run at equal speed, control members X and Y
also run at equal speed. If it were desired to
run the folder say at one-half the speed of the
20 printing unit, the gear ratio. would be such that
and that there are means to render all of the
control mechanisms 0 responsive to the speed
of shaft l2 and each control mechanism re
sponsive to the speed of the unit B which it
governs.
In the foregoing description it has been as
sumed that the direction of rotation of members
X and Y is as indicated by the arrow in Fig. 3;
that is, with shallow end 5 of slots 3 leading
and deep end 4 trailing. It will, however, be
understood that the direction of rotation could
be the reverse of that indicated, in which event
members X and Y would be separated so long 15
as the speed of X exceeds or is equal to that
of Y but that, when the speed of Y exceeds that
of X, the two memlers would approach each
other. In these circumstances, the effect of the
movement of element Z should be correspondingly 20
control members X ‘and Y would run-at equal
speed when the folder runs at half the speedof
the printing unit.
It will now be understood that, when power is
supplied to the machine, motors D will continue
25
to accelerate so long as control member Y does
not exceed the speed of control member X but
that, so soon as it does, control element Z will
cut in more resistance to thereby decelerate the
altered.
I claim;
'
'
l. The method of obtaining a desired speed
relationship of a plurality of separately driven
devices greater than two’ which consists in inde
pendently but simultaneously controlling the
speed of a plurality of such devices with respect
to the speed of a single device without aifectin?
the speed of the single device by the speed of
the plurality of devices.
30 speed of motor D, andin this connection it may '
2. A system of speed control including: a pri-'
be remarked that the amplitude of movement
of control element Z may be such that power to
motor D is cut off altogether when the speed of
control element Y exceeds that of control ele
ment X, thereby causing motor D to run due to
35 its own momentum until it has decelerated su?i
ciently, after which power is again applied.
It may also be pointed out that the circuit of
each motor D can be supplied with a manually
operated controlling mechanism such as rheo
40
stat R2.
Considering now the system as a whole, it will
be seen that Fig. 1 shows a plurality of sepa
rately driven devices or units greater than two
and that the speed of a number of these devices
45 or units, such as B, is individually and simulta
mary device; a plurality of secondary devices
driven separately from each other as well as
separately from the primary device; and a plu
rality of control mechanisms responsive to the -
speed of the primary device and individually and
simultaneously responsive to the speed of‘ the
secondary devices to independently govern the
speed of the secondary devices but not that of
the primary device.
40
‘
3. A system of speed control including: a pri
mary device; a plurality of secondary devices
driven separately from each other as well as
separately from the primary device; a plurality
of control members arranged in pairs, the num 45
ber of pairs being equal to the number of sec
neously controlled with respect to the speed of vondary devices; means to drive one control mem
ber of each pair at a speed proportional to that
a single device or unit, such as A. It will fur
ther be seen that in carrying out the method of
the above system there is employed a plurality
50 of control mechanisms, such as O which are re
sponsive to
as A, and
sponsive to
such as B,
55
devices B.
the-speed of a primary device, such
individually vand simultaneously re
the speed of the secondary devices,
to individually govern the speed of
In analyzing the system still more
in detail, it will be seen that there is employed
a plurality of control members, such as X and
Y, which are arranged in pairs, the number of
60
pairs being equal to the number of devices B,
and that means are employed to drive one con
trol member of each pair at a speed propor
tional to (not necessarily equal to) that of device A, together with means to drive the other
control members of said pairs at speeds propor
65 tional to (not necessarily equal to) those of de
vices B; and that means, such as elements Z,
which are responsive to variations in speed be
tween the control members X and Y of, a pair,
-70 control the speed of that device B which drives
the member Y of that pair.
,
It will also be seen that the system contem
plates the use of a shaft, as I! which is driven
from a unit, as A, and a plurality of control
.5. mechanisms 0 for individually governing the
of the primary device; means to drive the other
control memb_ers of said pairs at speeds propor 60
tional to those of the secondary devices, each
secondary device driving onecontrol member;
and means responsive to variations in speed of
the control members of a pair to control the
speed of that secondary device which drives a 55
member of that pair.
4. A system of speed control including: a plu
rality greater than two ‘of _ separately driven
units; a shaft; means to drive said shaft from
one of said units; a plurality of control mecha
nisms for individually governing the speed of
the remaining units, each of said remaining
units being governed by‘a different control mech-l
.anism; means to render all of said control mech
anisms responsive to the speed of the shaft; and 65
means independent of said shaft to render each
control mechanism responsive to the speed of
the unit which it governs.
'
5. A system of speed control including: a plu
rality greater than two 01’ separately driven 7
units for printing and folding material; a shaft;
means to drive said shaft from one of said units;
a plurality of control mechanisms for individu
ally governing'the speed of the remaining units,
each of said remaining units being associated
r
2,120,714
with and governed by a di?erent control mecha
nism; means to render all of said control mech
anisms responsive to the speed of the shaft; and
means independent of said shaft to render each
control mechanism responsive to the speed of
the unit‘with which it is associated and which
it governs.
’
3
13. The combination with a plurality of print
ing units and a folding‘ unit, separately driven,
of means responsive to the speed of the folding
unit for simultaneously but independently con
trolling the speed of the printing units without‘
affecting the speed of the folding unit.
14. The combination with a plurality of units
for printing and folding material, of a motor for
each unit, and means to control, by the speed of
one motor, the speed of the remaining motors 10
without controlling the speed of the one motor
mechanisms for individually governing the speed by the speed of the remaining motors.
of the printing units, each of said printing units
15. The combination with a plurality of oper
being governed by a different control mechanism; ating units greater than two, of a motor for each
15 means to render all of said control mechanisms unit, and means to control, by the speed of the
responsive to the speed of the shaft; and means motor of one unit, the speed of the motors of the
independent of said shaft to render each control‘ remaining units Without controlling the speed of
mechanism responsive to the speed of the print
the motor of the one unit by the speed of the
ing unit which is governs.
motors of the remaining units.
20
7. The combination with a plurality ,of sep
16. A method of obtaining a desired speed re
arately driven. units, of a plurality of control lationship between a primary device and a plu
mechanisms all of which are responsive to the rality of secondary devices in which all of the
speed of one of said units and each of which aforesaid devices are separately driven and in
is only responsive to the speed of a. different unit which the secondary devices are unresponsive to
of the remaining ones; and means to control the the speed of one another but are independently 25
.~ speed of said remaining units from said control and simultaneously responsive to the speed of the
mechanisms, each of said remaining units being primary device, and in which the primary device
governed by a different control mechanism from is not responsiveto the speed of the secondary
that which governs any of the other remaining devices.
~
30 units.
17. The method of obtaining a desired speed re 30
8. The combination with a plurality of sep
lationship of a plurality of separatelydriven de
arately driven units for printing and folding ma~ vices greater than two which consists in inde
terlal, of a plurality of control mechanisms all pendently but simultaneously controlling, with
of which are responsive to the speed of one of said respect to the speed of one of said devices, the
units and each of which is only responsive to speed of the remaining devices, the speed of said 35
the speed of a different unit of the remaining one device being uncontrolled by the speed of
6. A system of speed control including: a plu
rality of printing units and a folding unit, sepa
rately driven; a shaft; means to drive said shaft
from the folding unit; a plurality of control
ones; and means to control the speed of said re
~ maining units from said control mechanisms,
each of said remaining units being governed 'by
40 a different control mechanism from that which
governs any of the other remaining units.
9. The combination with a plurality of print
said remaining devices.
_
18. A method of obtaining a desired speed re
lationship between a plurality of separately driv
en units greater than two in which-the speed of 40
a plurality of subservient units is independently
and simultaneously controlled by the speed of a
master unit and in which the speed of the master
unit is uncontrolled by-the speed of the sub
ing units and a folding unit, separately driven,
of a plurality of control mechanisms all of which
45 are responsive to the speed of the folding unit servient units.
and each of which is only responsive to the
19. A method of obtaining a desired speed re
speed of a different printing unit; and means to lationship between the separately driven units of
control the speed of the printing units from said » a printing machine in which the speed of a plu
control mechanisms, each of said printing units rality of subservient units is independently and
50 being governed by a different control mechanism
simultaneously controlled by .the speed of a
from that which governs any of the other print
master unit and in which the speed of the master
ing units.
unit is uncontrolled by the speed of the subservi
10. The combination with a plurality, greater ent units.
than two, of separately driven units for printing
20. A system of speed control including: a pri
and folding material, of means responsive to the mary device; a plurality of secondary devices
speed of one unit for independently controlling driven separately from each other as well as
the speed of the remaining units without affect
separately from the primary device; a plurality
ing the speed of said one unit by the'speed of the of control mechanisms, one associated with each
remaining units.
.
80
11. The combination with a plurality, greater
than two, of separately driven units for printing
and folding material, of means responsive to the
speed of one unit for simultaneously but inde
pendently controlling the speed of the remaining
.65 units without ail'ecting the speed of said one unit
by the speed of the remaining units.
‘ 70
,
12. The combination with a plurality of print
ing units and a folding unit, separately driven, of
means responsive to the speed of the folding unit
for independently controlling the speed of the
printing units without ail'ecting the speed of the
folding unit.
.
‘
secondary device, each control mechanism includ
ing two rotatable control members that rotate
45
~
50
55
60
independently of each other at all times; means
to drive one control member of each control
mechanism proportional to the speed of the pri
mary device; means to drive thelvother of said
control members of each control mechanism pro-‘ 65
portional to the speed of that secondary device
with which a particular control mechanism is as
sociated; and means responsive to variations in
speed of the members of a control mechanism ‘to
control the speed of that secondary device with 70
which said control mechanism is associated.
WALTER C. SCOTT.
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