Патент USA US2130898код для вставки
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 * / T5- 5; 5 k5,“ _' , 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.