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Патент USA US2130898

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Sept. 20, 1938.
J. w. OGDEN
2,130,898
TRIPPING DEVICE
Filed Nov. 24, 1956
5 Sheets-Sheet l
INVENTOR.
JACOB W. Oc; DEN
ATTORNEY.
Sept. 20, 1938.
J, w. OGDEN
2,130,898
TRIPPING DEVICE
Filed Nov. 24, 1956
s Sheefs-Sheet 2
,
IN VEN TOR.
JAG OB W. OGDEN.
A T TORNEY.
Sept. 20, 1938.
J_ w_ OGDEN
2,130,898
TRIPPING DEVICE
Filed Nov. 24, 1936
3 Sheets-Sheet 3
fé
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INVENTOR.
J‘AQOBWOGDEN.
A TTORNEY.
Patented Sept.- 20, 1938
-
'
D
I
vUNlTED STATES PATENT OFFICE
2.130.098 i
‘DRIPPING DEVICE
Jacob w. Ogden, Springdzle, Conn, auirnor to
- Pitney-Bowes Postage Meter 00., Stamford,
Conrh, a corporation of Delaware
Application November 24, 1938, Serial No. 112,464
'
15 .Claims.
This invention relates to a mechanical tripping
(01. 101-235)
which is controlled by the movement of the article
device which is particularly adapted for use with ' through continuous contact therewith.
‘ ‘a machine for controlling‘ the printing of impress
,With the foregoing and other objects in view,
sions upon articles which are conveyed or otherwhich will appear as the description proceeds,
5 wise moved to a printing position at high speed, the invention resides in the combination and ar- 5
such as for example, the printing of, a. cancella- rangement of parts and in the details of con
tion mark or a stamp impression upon letters‘ in
a mailing machine, which are fed to a printing
position by means of continuously driven feed
10 rollers,
’
'
struction hereinafter described and claimed, it
being understood that various changes in the pre
cise embodiment of the invention herein disclosed
may be madewithin the scope of what is claimed 10
In printing cancelling impressions upon letters,
it is desirable to have the said impressions come
within a predetermined distance irom'the edge
of the letter and since the trip is controlled by
15 each individual letter, it is necessary to start a
Without departing from the spirit of the inven
tion.
A preferred embodiment of the invention is ll
,lustrated in the accompanying drawings. where
in: '
tripping operation before the leading edge of the
Fig. 1 is a plan view with part in section show
letter reaches the printing member.
In other machines of like character, a single
lng article feeding mechanism, a trip mechanism
and printing meehehlsm;
I
tripping point is provided which is brought as
20 near to the printing position as possible to permit the instant operation of the printing member when the trip is engaged by a letter. In the
device of this invention, two tripping points are
provided, one a comparatively delicate trip, which
as is actuated by a letter to set a driven element in
motion, and a second tripping point which is
actuated by the driven element, and which trips
the printing member after the letter has advanced from the initial tripping point into prox80 imity with the printing member. '
This offers a considerable advantage in that
the ?rst tripping point requires-very little actu-
ating force, while the second trip, which is driven,
has adequate force to produce the result desired.
l5
Fig- 2 is 9- fl'egmehtal'y Plan View Showing the
position of the tripping mechanism after an arti-. 90
cle has effected the initial tripping movement of
the tripping member;
Fig. 3 is also a fragmentary plan view showing
the tripping member in an advanced position and
at the point of tripping or releasing the step from 25
the printing member;
Fig- 4 1S a further fragmentary Plan View ShOW
ing the Desitien 0f the tripping member at the
Completion of its movement;
Fig. 5 is an end view taken substantially in the 30
direction of the arrows 5—-5 of Fig- 1; and
Flg- 6 is an end View leeklng in the direction of ’
arrow 6 on Fig- 1
Referring to Flg- 1 the} articles to be printed.
35 Further, the leading edge of the printing die may
be brought close to the impression roller for assuring the accurate placement of the stamp impressions, and it permits the use of an inexpensive friction clutch instead of the more expensive
such as the letter indicated at L, are fed between 35
continuously driven feed rollers ll past a trip
Ding member indicated generally at It’ and be
tween-a printing member I3 and impression roller
l4- The Printing member is provided with a can
40 types of clutches. '
cellation die face I 5 and a postmark die face i8. 40
,
1
,
One object of the invention, therefore, is to pro-,
vide means whereby a mechanical tripping device
may be set in motion by the engagement of ‘an
article therewith, as the article is fed' therepast
45 to a printing position, and to include means
whereby the actual tripping of the printing member is delayed until the article has advanced to
the printing position,
'
Another object is toiprovide a, two point me50 chanical trip, the ?rst point of which may be
vactuated by a comparatively delicate force, and
the second point of which may be actuated by
a greater or driving force which is set in motion
It will be noted that the leading end of the cancel
ling die l5 or the end indicated at l5a is in close
Proximity with the Point Of engagement With the
impressionreller l4 and that the tripping mem
ber I2 is spaced at a considerable distance away 45
from the Printing member.
The Printing member '3 15 leesely mounted on
a continuously driven shaft l1 and is adapted to
be driven by means of a friction clutch member
l8. which has one member "a. (Fig. 6) ?xed to 50
said shai’t l1. The said printing member is nor
mally held in a non-rotating position by means
of a stop arm l9, which forms one arm of a bell
by the ?rst force.
_
Another object is to provide a tripping means
crank lever 20. Another arm lBa of said bell
crank is connected by means of a link 22 to one u
55
2
9,180,898
arm 23a of another bell crank lever 23. A spring 33 to start another revolution of the disc 26, the
24 connected to arm 23b of said bell crank 23, hooked end 42 of the stop pawl 4|‘ will not be
tends to urge the bell crank 23 about its pivot in removed from its engagement with the lug. 43
a counter-clockwise direction to thereby cause until after the disc actually begins to move. To
the arm |6a of the bell crank 26 to rest against accomplish this, the disc 26 is adapted to be
a stop pin 26 and thereby fix the position of the moved independently of the collar 3|, due to the
stop arm IS in the path of the lug 2| on the provision of a lost motion connection which in
printing member l3. The bell cranks 26 and 23 cludes a slot 46 in the disc and a pin 41 in the
are mounted on suitable studs extending from collar 3|, which pin projects through said slot
10 a support plate 26 carried by the machine frame. and which is maintained in a position. against 10
The tripping member |2 comprises a disc 26 the forward edge if the slot as shown in Fig. 2
which is rotatably mounted upon a stub shaft by means of a spring 46. Upon the initial move
21, extending below the support plate 26, and ment of the disc 26, as from the position of Fig. l
rests upon a collar 3|, which collar also forms to that of Fig. 2, the collar will remain in its
15 a part of the tripping member as will be ‘later ?xed position until a ‘pin 49, projecting down
described.
The collar rests upon a ?ange 29 pro
vided at the lower end of the stub shaft 21.
Also secured to the disc 26 is a support block
32 on which is slidabiy mounted a trip ?nger 33,
20 which finger is normally urged in a projected
position by means of a spring 34, to normally
maintain the'trip end thereof in the path of the
articles. The spring 34 is stretched between an
anchor pin 56 secured in said block 32 and a pin
61 in the trip ?nger, there being an elongated
slot 65 in the trip ?nger 33 through which the
anchor pin 66 passes.
One edge of the disc 26 is ?attened as indi
cated at 36 with the said ?at lying in a plane
30 parallel and adjacent to the path of travel of the
article. Opposite said disc 26 and cooperating
therewith is a driven feed roller 36.
An article upon being fed by means of the feed
rollers II, will be moved into engagement with
35 the trip ?nger 33 as shown in Fig. l, whereupon
the disc "will be rotated by the engagement of
the leading end of the article therewith until the
knurled peripheral surface of the disc moves into
engagement with the lower surface of the article.
From this point the article becomes the driving
member through the cooperation of the feed
roller 36, the pressure of which roller will force
the article against the peripheral surface of the
disc 26 and cause the disc to be driven so long
45 as the peripheral edge remains in contact with
the article.
During the movement of the disc 26, a pin or
striker member 36, which projects upwardly from
the top surface of the disc, will be moved into
engagement with the arm 23a. of the bell crank
23. The bell crank 23 will thus be rocked in a
clockwise direction against the pull of the spring
24 to thereby rock the bell crank 26 and remove
the stop I9 from its engagement with the lug 2|
of the printing member. The trip pin 36 will
continue to move past the. arm 39 during the
rotation of the disc 26 to thereby permit the b"ll
crank 20 to be reset to its normal position, with
the stop arm IS in the path of the lug 2| for the
60 purpose of stopping the printing die after one
revolution of movement.
After the peripheral surface of the disc 26
leaves the lower surface of the article, as shown
in full lines, Fig. 4', the said disc 26 will be carried
65 to the end of its revolution by momentum.
The tripping member I2 is stopped after one
revolution by means of a structure which will be
later described and is latched in its home position
by means of a pawl 4| which pawl has one hooked
70 end 42 normally positioned in the path of a lug
43 on the collar 3|. The said pawl 4| is pivotally
mounted upon a stud 44 and the hooked end 42
thereof is urged toward its stop position by means
of a spring 46.
7.6
,
When the next article engages the trip ?nger
wardly from the disc' 26, engages a shoulder 6|
on the pawl 4| and cams the pawl outward from
its latched engagement with the- lug 43. From
the two positions shown in Fig. 2, it will be seen
that the camming out of the hooked end 42 of
the pawl 4| is accomplished during the period
that the lost motion through the slot 46 is taken
up.
Immediately after the release of the hooked
end 42 from its engagement with the lug v43, the
spring 48 will return the collar 3| to its normal
relation with the disc 26 to permit both the col
lar and the disc to rotate together during the
remainder of the revolution. Upon the passing
of the pin 43 over the shoulder 6| of the pawl
4|, the said pawl will be returned to its stop
position by means of the spring 46 before the disc
26 has completed its revolution.
The trip member I2 is limited to one revolution
of movement by ‘the engagement of the tail end
of the tripping ?nger 33 with a ?xed stop pin 64
which projects below the support plate 26. A lug
62, provided on the tail end of the trip ?nger. is
adapted to engage a ?xed cam 63, which also
projects below the plate 28, and by its engage
ment therewith, will retract the said'tail end of
the trip ?nger to a position outside the periph
eral surface of the disc 26, where the lug 62 will
engage the said stop pin 64 as shown in the
broken line position of Fig. 4. After the stopping 45
of the trip member |2,_ the trip ?nger 33 will be
returned to its normal tripping position by means
of the spring 34. The parts will thus have re
turned to their normal positions as shown in
Fig. 1, and they will remain in this position until 50
the next article engages the trip ?nger 33.
From the foregoing, it will be seen that a sim
ple and improved mechanical tripping device has
been provided which is adapted to be set in mo
tion by a most delicate force, which force is the 55
means for preparing the device for connection
with a more substantial driving force to perform
the ?nal tripping operation.
"
What is claimed is:
1. In a device for printing upon moving arti-' 00
cles, the combination with a driven rotary print
ing member having stop means to normally pre
vent the rotation of said printing member; of trip
mechanism associatedwith said stop means in
cluding a primary trip member having a normal 65
ly stationary position and movable upon the en
gagement of a moving article therewith, and a
secondary trip member movable with’ said pri
mary trip member and arranged to release the
stop after the primary trip has moved through
part of its cycle.
_
2. In a device for marking moving articles, a
rotary printing member including a drive there
for, a stop normally holding the printing member
in a non-driving relation with the drive, a trip
1.0
3
member normally at rest arranged to be engaged
by the leading end of a moving article and to be
moved by said engagement to a driven position,
and means arranged in a fixed position relative
to the trip member and adapted to eil'ect the
release of the stop member after said trip mem
ber is moved to a driven position.
8. In a device for printing upon moving arti
cles, a printing member, stop means to hold said
printing member in a non-printing position, a ro
tatable tripping device engageable by an article in
advance of the printing position, a trip pin mov
able upon engagement of an ' article with said
tripping device, and a stop releasing member po
15 sitioned in the path of said trip pin and in a
spaced relation thereto, whereby the actual re
lease of the printing member is delayed until the
article has passed from the tripping device to a
printing position.
.
4. In a device for marking moving articles, a
rotary printing member including a drive there
for, a stop normally holding the printing member
in a non-driving relation with the drive, a driven
feed roller adapted to engage and advance each
article, a rotatable member associated with said
feed roller but normally arranged in non-driving
relation therewith, means projecting from said
rotatable member into the path of the moving ar
ticles and adapted to cause suillcient rotation of
said rotatable member upon engagement of an
article therewith to move the rotatable member
into driving relation with the moving article, and
means on said rotatable member to trip the stop
and thereby effect a printing operation.
5. In a device for printing upon moving arti
cles, the combination with a driven rotary print
ing member having stop means to normally pre
vent the rotation of said printing member; of a
trip to release said stop including a rotatable
member having a portion thereof projecting in
the path of the moving articles, whereby upon
engagement of the leading edge of an article
therewith the rotatable member is given a par
tial rotation and the periphery thereof moves into
45 engagement with one surface of the article; a
driven feed roller engaging the opposite surface
of the article and cooperating to continue the ro
tation of the rotatable member after the article
passes said projecting portion, stop releasing
50 means, and a striker member movable with said
rotatable member and arranged to engage the
stop means to release the printing member and
effect a printing operation after the rotatable
member has, been moved by the article.
6. In a device for printing upon moving arti
55
cles, the combination with a driven rotary print
ing member having stop means to normally pre
vent the rotation of said printing member; of a
by an article, a driven feed roller cooperating with
the rotatable member and effective to continue
the rotation of the rotatable member through the
driving engagement of the feed roller with the
article, and a stop tripping member carried by
said rotatable member arranged to release the
stop after the rotatable member has been par
tially rotated and thereby effect a printing op
eratlon.
8. In a device for printing upon moving arti 10
cles, the combination with a driven printing
member having stop means to normally prevent
the movement thereof, of a tripping device nor
mally arranged in a rest position, means whereby
said tripping device may be moved when engaged 15
by an article, a trip member on said tripping
device positioned so as to release the stop means
after the tripping device has been moved a pre
determined distance and to thereby effect the
tripping of the printing member and means to
limit the rotation of the tripping device to one
revolution.
9. In a device of the class described, the com
bination with article feeding means, a rotary
printing member, a drive for said printing mem 25
ber, and a stop to normally retain the printing
member in a non-driving relation with the drive;
of means to trip said stop, including a rotatable
member normally arranged in a rest position, a
driven feed roller associated with said rotatable 30
member and adapted to move the articles th'ere
past, said rotatable member and feed roller be
ing arranged at either side of the path of travel
of the articles, means projecting into the path
of an article to rock the rotatable member into
a position where it may be driven by frictional
contact with the moving article, and a striker
member carried by said rotatable member ar
ranged to release said stop and effect a printing 1
operation when the article has advanced to a
printing position.
-
10. In a device of the class described, the com
bination with article feeding means, a rotary
printing member, a drive for said printing means,
and a stop to normally retain the printing mem
ber in a non-driving relation with the drive; of
a rotatable disc member normally arranged in
a rest position and having one ?at edge lying
adjacent and parallel to the path of travel of
the articles, a driven feed roller associated with 50
said disc member and arranged opposite said
flat, 2. projection on said disc projecting into
the path of an article and adapted to be engaged
by an article to rock the disc member into a posi
tion where its periphery will move into fric 55
tional contact with the article,and a striker mem
to be driven by its peripheral engagement with
ber carried by said disc arranged to release said
stop and effect a printing operation when the
article has advanced to a printing position.
60
11. In a machine of the class described where
one surface of the article, and a striker member
movable with said rotatable member and ar
ber; stop means to normally retain the printing
- trip mechanism associated with said stop means
60 including a rotatable member which is adapted
ranged to engage said stop to release the print
65 ing member and effect a printing operation after
the leading end of an article has passed beyond
the rotatable member.
'1. In a device for printing upon moving arti
cles, a printing member, a stop normally retain
ing the printing member in a non-operative posi
tion, means to release said stop including a ro
tatable member, a yieldable finger mounted upon
said rotatable ‘member and projecting into the
path of the moving articles to providepartial
75 rotation to the rotatable member when engaged
in articles are fed to a rotatable printing mem
member in a rest position, tripping means in
cluding a disc member having one ?at edge lying as
adjacent and parallel to the path of travel of
the articles, a yieldable member projecting above
the flat surface and into the path of the moving
articles to provide partial rotation to the rotat
able member when engaged by an article and 70
thereby move the periphery of the disc into fric
tional driving engagement with the article, means
on said disc to trip the stop means during the
rotation of the disc and thereby eifect a printing
operation, and an abutment member positioned 75
in the path of the yieldable member to limit the
rotation of the disc to one revolution.
12. In a machine of the class described where
in articles are fed to a ‘rotary printing member,
stop means to normally retain the printing mem
ber in a rest position, tripping means including
a disc member having one ?at edge lying ad
jacent and parallel to the path of travel of the
articles, a yieldable member projecting above the
10 ?at surface into the path of the moving articles
to be engaged by saidv articles and thereby rock
the disc to move the peripheral surface of the
disc into'engagement with the article and be
rotated thereby, means on said disc to trip the
15 stop means during the rotation of the disc, a
disc stopping member, means to project one end
of said yieldable member beyond the periphery
of the disc and into the path of said disc stop
ping member to limit the rotation of the disc to
20 one revolution, and means to retract said yield
able member into the path of the moving articles
at the end of the revolution.
13. In a tripping device operable to release a
normally inactive printing member by the en
25 gagement of moving articles with said device
and comprising: one trip member extending into
the path of the articles and movable by the
limited force of an article, and a second trip
member movable by the action of the ?rst trip
80 member into frictional driving engagement with
one surface of a moving article, and a striker
member on the second trip member arranged to
trip the printing member.
14. In a device for tripping a normally in
active printing member comprising in combina
tion: letter feeding means including a feed
roller; a letter actuated trip including a rotatable
member positioned opposite said feed roller and
having a trip ?nger extending into the path of
the moving letters, which, when engaged by a
letter, is adapted to rock the periphery of the
rotatable trip member into driving engagement
with one surface of the moving letter; a second 10
trip member associated with the driven rotatable
member, and means associated with the printing
member arranged in the path of said second trip
member so as to be engaged thereby to effect the
release of the printing member.
15. A trip actuating device, comprising aro
tatable member, means to normally latch said
member in a stationary position, means carried
by said member and normally projecting into
the path of moving articles adapted to provide 20
partial rotation to the member while a moving
article is engaged with said projection, means to
permit partial movement of the rotatable mem
ber while the latch means remains latched, means
to release said latch after an initial movement of 25
the rotatable member, a device to be tripped
having a projecting member associated therewith,
and a trip engaging means movable with said
rotatable member and arranged to engage said
projecting member to effect a tripping operation 30
during the rotation of the movable member.
JACOB W. OGDEN.
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