US1811582A - Printing and stamping machine - Google Patents

Description

June 23, 1931. R. F. JAHN PRINTING AND STAMPING MACHINE Original Filed April 13, 1927 2 Sheets-Sheet l XMJ MY WAY! m8 JAHOITAM 1a! A TTO NEYI June 23, 1931. R. F. JAHN PRINTING AND STAMPING MACHINE- Original Filed April 15, 1927 2 Sheets-Sheet 2 mvN Q //NVN TOR A TTO v5 V;

Patented June 1931 Ian-mourn F. Jinan, or

ATEN'E o bas cs BROOKLYN, new YORK rRINTING Ann STAMPING Macrame Original application filed April 13, 1927, Serial No. 183,318. Patent No. 1,744,770, dated January 28, 1930.

" Divided and this application filed This invention relates to improvements in printin and stamping machines, and has particu' ar reference to "such devices which are adapted for endorsing, cancelling, or oth- {6 erwiseprinting upon bank checks, tickets, letters, and similar articles. I a;

The subject matter of thisinvention is disclosed in "my co-pending application for printing and stamping machines, filed April 10 13, 1927 ,Serial N 0. 183,318 but is not claimed therein, the' present application being a d1- vision of the said, application Serial-No. 183,318. t r V In theabove identified co -pending application, the invention hasbeen embodied in a' machine which is power-driven and capable of expeditiously operating upon a quantity of successively fed paper sheets or likear ticles asthey are passed through a-printing' couple. This printing couple comprises an impression roller anda printing roller, and

7 one ofthe objects of thepresent invention is to provide a simple and efiicient driving connection for the printing'couple, whereby the printing roller will be automatically rotated through a single complete revolution each time a check or other paper sheet is presented to it. For this purpose the printing roller is driven through-a clutch, and controlled by atripping mechanism which is actuated by the entering edge of a presentedcheck. The printing roller is normallyjheld against rotation by virtue of the engagement'of a stop lever with'a fixed abutment, the stop lever being pivoted oni one end of the printing roller. A trip lever is also associated with the printing roller and stopjlever, andis disposed in the path of the entering edge of the presented check so as to be actuated therei by, to release the stop lever and permit rota tion of the printing roller. The clutch has a portion associated with the intermittently rotatable printing roller, andanother portion associated with a constantly rotatable feed roller, whichis driven byaworm and worm gear from an electric motor. The motor shaft and worm are connected together by a flexible coupling, and the principal rotating parts arejournaledinanti friction bearings June-22, 1929. Serial No. 372,822; I 1

whereby theirf operation will be exceedingly l i V Fig; 2'is a fragmentary vertical longitudinalsectional view through the device, showing thedrive shaft coupling, gearing, and clutch; V a

Fig. 3 is a vertical sectional view-on line 3-3 of Fig. 1 showing the normal position of the parts of the tripping mechanism, ready for operation; and a j Fig. 4 is a similar fragmentary view of the tripping mechanism after the printing roller has been released.

, The invention has been shown as embodied 1 in amachine for endorsing bank checks, and in. the following description, when bank checks are specified in connection with the operation of the device, it is to be understood that their equivalents ma'y be operatedupon in the same way. The device comprises a substantially flat base plate A of rectangular outline and preferably having a plurality of cushion feet A whereby to be supported upona desk, table or the. like without likelihood of damaging the surface thereof, Secured to the baseplate A intermediate its ends is a supporting bracket A having a pair of upwardly extending spaced arms A and A said arms being disposed adjacent the opposite side edges of the base plate. Also integral with the bracket A and extending upwardly; therefrom, between said arms A and A isa shorter arm A, which supports certain portions of theinechanism' as will hereinafter be explained. Adjacent their upper ends, the arms A and A are provided with hearing bosses A and A respectively, having axially alined openings A and A in which are secured stationary mounting shafts A and A the inner ends of which are spaced from each other to rotatably support a printing roller B of the printing couple.

The printing roller B is built up of several parts, and includes a relatively thin walled cylindrical shell formed of semi-cylindrical sections supported at their opposite ends by disks B and B, which are respectively formed with outwardly extending hub portions B and B as best shown in Fig. 1. One of the semi-cylindrical sections of the printing roller is preferably detachable, and'provided on its outer surface with a printing or stamping die B having the desired legends B which together with changeable type elements B are used for printing upon checks or other sheets as they are successively passed through the machine. Since the structural details of this roller do not form a part of this invention, a more complete description of it is unnecessary.

Mounted upon the hub portion B of the mounting disk B is a ball bearing B against the outer race of which rests one end portion of an impression roller B, said impression roller being yieldably held in parallel relation to the printing roller B and having its other end portion engaging against a feed roller C The feed roller C is coaxial with the printing roller-B and adapted to be intermittently connected therewith to rotate said roller B, and is itself rotatable on anti-friction rollers C on the mounting shaft A Secured to the outer side of the feed roller C, as by screws C is a worm gear C which meshes with andis driven by a worm C on a shaft C, said shaft being journaled in ball bearings at C in a bracket C The bracket C is suspended on the mounting shaft A as best shown in Figs. 1 and 2, and secured thereto by a set screw C, and the shaft G extends in a direction transverse to that of the axis of the printing roller, and forwardly beyond the bracket C for connection to a driving shaft C of a motor C The shafts C and C are substantially coaxial and connected together by a flexible coupling C, which has been shown as comprising a pair of disks C and C secured to the respective shafts C and C and an intermediate disk C of flexible material. The disks 0 and C are each provided with a pair of diametrically opposed apertures C and said. apertures of the respective disks are disposed at right angles (Fig. 2). The intermediate disk C is provided with four apertures C, apart, and is connected to the disk C by a U shaped pin C and to the disk C by a similar U shaped pin C The motor C may be of any desired type, and is secured by screws to the main base A and is furnished with electric current through a suitable conduct-or, and controlled by a manually operable switch not shown.

Novel means are employed for connecting the feed roller C with the printing roller B whereby to intermittently rotate the latter one revolution at a time, said means including a clutch and a tripping mechanism. The clutch comprises a pair of semi-circular jaws D and D provided on their inner surfaces with suitable friction material D for engagement against the periphery of a clutch collar D which is carried by the printing roller hub The jaws D and D are disposed within a recess C in the inner end of the feed roller C and are secured thereto by clamping between a pair of parallel pins D which are secured to said feed roller C The opposite ends of the jaws D and D have outwardly extending lugs D and D which are apertured for the reception of a screw D said screw being fitted with a nut D against the outer side of the lug D and having a spring D between the screw head I) and the outer side of the lug D The spring D is under compression whereby to normally force the lugs D and D toward each other, and thereby cause the desired frictional engagement of the clutch lining D with the clutch collar 1), and in such condition the printing roller B will be caused to rotate with the feed roller C provided said printing roller is not otherwise held against rotation. The spring D provides a cushioning effect against the tightening of the screw D and also restrains said screw from turning loose.

Mounted upon the upper end of the stationary bracket arm A and in substantially vertical alinement with the axis of the printing roller, is a stop wheel D, which may preferably be rotatable upon a screw D Carried by the printing roller and pivoted to the mounting disk B at D is a stop lever D having at its free end a roller D which is adapted to normally abut against the roller D and thus prevent-rotation of the printing roller. The stop lever D has its free end normally forced outwardly by a compression spring D which is partially disposed in a recess D in the hub portion B and at its other end said stop lever is provided with an arm D formed at its extremity with a shouldered notch I). Also pivoted to the disk B as at D, is a trip lever B, which has a tooth portion D adapted to engage in the notch D to maintain the stop lever in its outermost position as shown in Fig. 3. The trip lever D is under the influence of a tension spring D which has one of its ends connected to said trip lever at D and its other end anchored to the roller disk B at D, said spring normally maintaining the tooth D in the notch D Extending outwardly from the trip lever D is a finger portion D", said finger portion extending beyond the periphery of the printing roller B and into a groove B in the impression roller B Bank checks or other similar articles are presented to the printing couple in the usual manner and are drawn inwardly'by the constantly rotatinggfeed roller 0 and the, im-

rotation continues to the point where the rollers D and I) become disengaged, the spring D again forces the free end of the stop lever B outwardly, and thereafter the finger D becomes disengaged from the entering edge of the check, permitting the return of the tooth 1) into the notch D The printing roller continues to rotate until it is again arrested by the abutment of the locked lever D with the stop roller D overcoming the frictional grip of the clutch jaws D and D on the collar D and permitting subsequent slippage of said clutch jaws around the collar. This operation is repeated as each successive check is inserted andthe checks are printed upon as they pass between the rollers B and B of the printingco-uple. Be-

cause of the fact that the trip lever and the stop lever are independently pivoted upon the end of the printing roller the pressure required for releasing or tripping the mechanism' will be very slight and therefore it can easily be accomplished with a thin piece of paper without injury to the same.

In using the device, the proper die plate" and interchangeable type are placed in position, and the motor C is set in motion. Quick drying ink is supplied to the printing roller from an ink well F by distributing As the motor shaft C rotates, the power is transmitted through the flexi le joint 0, shaft C worm C and rollers F and F worm gear C, to the feed roller C and the impression roller B is caused to rotate in the opposite direction by virtue of its contact with the periphery of said feed roller. The

printing roller B, however, is normally held against rotation by the abutment of the roller D with the stop member D the clutch 1 clutch collar D jaws D and D freely slipping around the tween the rotating feed roller C and the lmpresslon roller 13, and are CZLIIlQCl rearstriklng the trip the clutch jaws D and D take hold'of the collar 1) and rotate the printing roller one revolution for each check. Thus the checks are endorsed or otherwise printed upon, and are successively delivered to a suitable receiving and stacking means rearward of the printing couple. The machine is very easy running, quiet, rapid, free from vibration and compact, and the trip mechanism is so As the checks to be 'en; .dorsed are fed, one at a time, through the printing couple, they are seized by and belever sensitiveastobe actuated the edge of 'rollerand adapted to normally engage against said fixed stop, and a trip lever in dependently pivoted on the roller, said trip lever and stop lever having mutually engaging means for maintaining the stop lever in its normal position. i 5 2. A machine of the class described, comprising a printing roller, a fixed stop adjacent the roller, a stop lever pivoted on the roller and having a free end adapted to engage the fixed stop. a tripleverindependently pivoted onthe roller, and means'associated with the trip lever for normally maintaining the stop lever in engagement with the fixed stop. i

printing roller, a fixed stop adjacent one end of the roller, a stop .lever pivoted on the adjacent end of the roller and having a free end adapted to normally engage the fixed stop to prevent rotation of the roller, a latch arm associated with the stop lever, a trip lever also pivoted on the end of the roller, and means movable with the trip lever for releasably holding the latch arm to'prevent intermittently rotatable roller, and a tripping mechanism carried by the roller for coni trolling the rotation thereof, said tripping mechanism comprising a stop lever pivoted on theroller, a fixed stop adjacent to the roller for engagement by the stop lever, and a trip lever independently pivoted on the roller eccentrically with reference to the stop lever, the trip lever and the stop lever having mutually engaging means for releasably holding the stop lever against the fixed stop to prevent rotation of the roller, the stop over and disengage the fixed stop when said mutually engaging means are released.

5. In a machine of the class described, an intermittently rotatable roller, and a tripping mechanism carried by the roller for controlling the rotation thereof, said tripping mechanism comprising a stop lever pivoted On the 'roller, a fixed stop adjacent to the roller forengagement by the stoplever, and

3. In a machine offthe class described, a

being adapted to automatically pass a trip lever independently pivoted on the roller eccentrieally with reference to the stop lever, the trip lever and the stop lever having mutually engaging means for releasably holding the stop lever against the fixed stop to prevent rotation of the roller, the stop lever being adapted to automatically pass over and disengage the fixed stop when said mutually engaging means are released, and means for automatically reengaging said releasable holding means after the stop lever has passed over the fixed stop.

6. In a machine of the class described a printing couple including a pair of, opposed rollers, tripping mechanism carried by one of the rollers, a fixed stop adjacent said rollers, and means including a clutch for rotating the rollers, the tripping mechanism comprising astop lever pivoted on the roller, a trip lever independently pivoted on the roller, and mutually engaging means carried by the stop lever and the trip lever to releasably maintain the free end of the stop lever in the path of the fixed stop, a. portion of the trip lever being disposed in the path of a sheet fed through the printing couple and being operated thereby to release the stop lever.

In testimony whereof, I have aliixed my signature hereto.

RAYMOND F. JAHN.

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