US1239128A - Printing-press. - Google Patents

Description

W. J. HAMSAIER.

PRINTING PRESS.

APPLICATION FILED JULY 29. l9l 6.

Patented Sept. 4, 1917.

3 $HEETSSHEET 1.

W. J. R AMSAIER.

PRINTING PRESS.

APPLICATION Hm) JULY 29.1916- Patented Sept. 4,1917.

3 SHEETSSHEET 2.

W. 1-. RAMSAIER.

PRINTING PRESS. APPLICATION FILED JULY 29. 1916.

Patanted @ept. 4, 1917.

3 SHEETSSHEET 3.

WILLIAM J. BAMSAIER, OF NEW YORK, n. Y.

PRINTING-PRESS.

Specification of Letters Patent.

Patented Sept. 4, 1917.

Application filed July 29, 1916. Serial No. 111,999.

To all whom it may concern:

Be it known that I, WILLIAM J. RAM- SAIER, a citizen of the United States, and resident of the borough of Manhattan, city, county, and State of New York, have invented certain new and useful Improvements in Printin '-Presses,of which the following is a specification.

This invention relates to improvements in that class of printing presses in which the type or printing surface is held on a bed and the printing platen is carried by a rocking bridge. The inking rollers are mounted in a carriage which is normally at the top of the type bed and is moved down across the face of the printing surface and back to its normal position while the bridge and the printing platen are moved away from the type bed. This type of press is generally known as the universal platen printing press. The invention is applicable to any form of press with a rocker bridge and a printing platen carried thereby.

One of the main objects of this invention is to simplify and improve the means whereby the inking roller carriage will be actuated from the platen-carrying bridge, or the mechanism connected to and operating therewith.

Another object of the invention is to provide means whereby the inking roller carriage actuating mechanism may be disconnected from the platen-carrying bridge through the operation of the throw-off bar.

Another object of the invention is to pro vide means whereby when the throw-off bar is returned to its normal position, the inking roller carriage will be again connected to its actuating mechanism.

There are other important objects and advantages of the invention which will fully hereinafter appear.-

In the drawings, Figure 1 is a vertical sectional view of the press, the inking roller carriage and the printing platen being shown in side elevation;

Fig. 2a vertical sectional view of the platen-carrying ,bridge, on the line IIII of Fig. 1, a portion ofthe mechanism being broken away to more clearlyshow the con struction Fig. 3 ahorizontal 'sectionalview of the press on the line IIIIII of Fig.1;

Fig. t a detail rear view of the cams which operate to connect and disconnect the inking roller carriage from the rocking bridge, the operating link being shown in sectional view;

Fig. 5 a sectional view taken on the line VV of Fig. 4;

Fig. 6 a horizontal sectional View taken on the line VTVI of Fig. 4;

Fig. 7 a detail side elevation of the means for disconnecting the inking roller carriage mechanism from the actuating mechanism connected to the rocking bridge; and

Fig. 8 a detail rear view of the mechanism shown inFig. 7;

Referring to the various parts by numerals, l designates the main driving shaft which may be rotated in any suitable manner and from any suitable source of power. On this shaft is secured a disk 2 which carries a crank pin 3. On this pin is mounted the rear end of a forwardly extending bridgevoperating link 4. The shaft 1 carries a second disk similar to disk 2, and to this disk is connected another link 4, the forward ends of said links being connected to the opposite ends of theplaten-carrying bridge 5.

The platen-carrying bridge is formed with curved rockers 6 which bear on horizontal tracks 7 located in the forward up per part of the machine frame. The bridge is formed with forwardly and downwardly extending side plates 8 which carry, at their forward ends, inwardly extending lugs 9, said lugs bein adapted to engage and slide on the tracks T when the printing platen is completing its inward printing movement. The printing platen 10 is supported at the inner side of the bridge and is adapted to be brought into close proximity with the forward face of the type bed 11, as shown in Fig. 1, when the bridge is at the end of its inward movement. The bridge is guided in its rocking movement by the slotted cam guide 5*, as shown clearly in Fig. 1 and as is well known in this class of presses. When the bridge has beenmoved forwardly a sufficient distance to free the lugs 9 from the tracks 7, the bridge will be rocked forwardly and downwardly, bringing the printing platen to an inclined position and permitting the removal of the printed sheet and the proper adjustment of the new sheet to be printed.

The cam guide 5 carries a downwardly extending bracket 12, said cam and bracket trio being formed with a forwardly extend-v V tending substantially horizontal arm 15.

On the eccentric is mounted a sleeve 16 to 1 which is rigidly connected a downwardly extending operating bar 17. Pivoted on a horlzontal bar 18 is a bell crank lever 19, one arm of which extends forwardly and downwardly and is connected to the lower end of the bar 17, the other arm extending upwardly and forwardly and being connected at its upper end to the upwardly and irearwardly extending operating-hook 20. It is obvious from the foregoing that as the bridge is rocked forwardly and downwardly, the bar 17 will be-raised and the operating-hook thrown upwardly and ream wardly by means of the lever 19; and upon the reverse motion of the rocking bridge the operating-hook will be drawn forwardly and downwardlv.

At the rear of the machine, above the rear end of the operating-hook, is mounted a transverse rock shaft 21. To the ends of this rock shaft are secured upwardly and forwardly extending crank arms 22, whose upper ends'are connected by links 23'to the roller carriage 24. The rock shaft 21 is alsop-rovided with two short, downwardly and forwardly extending arms 25, said arms being placed a suitable distance on each side of the middle of said shaft, as shown clearly in Figs. 3 and 8. The lower ends of these arms are connected by a pin 26, on which are mounted three rollers 27, 27 and 28, the locking roller 28 being located between the two supporting rollers 27 and 27*, as shown clearly in Fig. 8. The operating hook 20 is formed with a slot 29 which runs, for a portion of its length, substantially parallel with the longitudinal line of the said hook. Near its rear end this slot is inclined downwardly and rearwardly, and at the forward end of this inclined portion an upwardly extending portion 30 is formed, said portion 30 being substantially perpendicular to the main body of the slot, as shown clearly in Figs. 1 and 7. The locking roller 28, in the normal operation of the machine, rests in the portion 30 of the 'slot of the operating hook, as shown clearly in Fig. l, the parts then being in their normal locked and operative position. It is manifest that as the operating-hook is reciprocated, the rock shaft 21 will be rotated and the inking roller carriage moved down over the printing surface and then back to its normal position above the platen.

Whenever it may be desired to disconnect the operating-hook from the inking roller carriage it is only necessary to lift the operating hook 20 sufficiently to release the locking roller '28 from the portion 30 of the slot of the operating-hook. For this purpose I provide the following mechanism, and adapt the same to be operated from the platen throw-off bar.

The throw-off bar 31 is mounted on the upper. ends of arms 32, said arms being connectedto and extending radially from eccentric sleeves 33 which surround the bridge trunnions 34, as is usual in presses of this type. Rigidly connected to the throw-01f bar and extending downwardly therefrom, is an arm 35, said arm being curveduaround the forward curved side of the platen-carrying bridge, as shown clearly in Fig. 1. To the lower end of this arm 35 is connected a link 36, the lower end of which is connected tolthe forward end of the arm 15. e As heretofore described, the arm 15 is connected to the eccentric sleeve 14 mounted onthe pin 13. By thus con necting the throw-off bar to the eccentric sleeve 14 the variation in the distance between the center of tllQtIHIlTllOIlS 34 and the center of the pivot'17 at the lower end of the operating bar when the throw-off is operated, is automatically compensated for. When the throw-off bar is moved forwardly and downwardly the bridge is moved forwardly through the eccentric sleeves 33. Thisslightly increases the distance between the centerof the pivot 17*" and the center of the trunnions 34, and this slight increase in distance must be compensated for in order to prevent a partial operation of the inking roller carriage. As the movements of this carriage and all of its operating mechanism are carefully timed,jit is essential that the proper operative relations be maintained when the throw-off bar is operated. The throw-off bar is released by means of the cams 37 said cams being operated through the bar 38 as is usual in devices of this kind. V

Mounted on the operating bar 17 is a sliding head 39- The bar 17 is formed with two slots 40, and in said slots are mounted blocks 41, said blocks being connected to the sliding head by means of transverse pins 42, so that thehead will be accurately guided in its vertical movement. Connected to the sliding head is a; link 43, the up per end of which is connected to the forwardly extending arm 15 of the sleeve 14, whereby the sliding'head will be vertically reciprocated throughthe operation of the throw-off bar. On one side of the sliding head is formed an inclined cam 44, said cam extending upwardly and forwardly from the rear edge of the head. On the opposite side of the sliding head isformed a cam 45, said cam extending downwardly and forwardly fromithe rear edge of the sliding head, as indicated clearlyin Figs. 1 and 5 of the drawings. These cams 44 and 45 are point above its adapted to engage the forward ends of horizontally movable bars 46 and 47, cam 44 being adapted to engage bar 46, and cam 45 being adapted to engage bar 47. The forward ends of these bars are provided with suitable antifrictio'n rollers, as indicated in Fig. 1; and said bars are mounted to slide in a bearing 48 in the machine frame. At the rear of the machine frame, below the operating hook, is mounted a transverse bearing rod 49, and on this rod is pivotally mounted a hook-releasing device 50. This device is formed with two upwardly extending arms 51, between which fits the operating-hook 20, as shown clearly in Fig. 8. A lifting roller 52 is mounted between said arms 51 and is adapted to engage the lower edge of the operatinghook and lift it sufliciently to free the locking roller 28 from the portion 30 of the slot 29 in said hook; On the upper ends of the arms 51 are formed curved supporting flanges 53,

which are adapted to fit under and engage the supporting rollers 27 and 27 when the operating-hook has been released from the roller 28, as shown clearly in Fig. 7. When the parts are in this position the entire weight of the inking roller carriage andits operating parts is supported through the arms 51, the cross bar 49 and the machine frame. It is manifest, therefore, that it will be unnecessary to provide any counterbalancing weight to support the inking roller carriage when said carriage operating mechanism is disconnected from the rocking bridge. The rear end of the bar 46 is connected to the releasing device below the pivot thereof, and the rear end of the bar 47 is connected to the releasing device at a pivot, as shown clearly in Figs. 1. and 8 of the drawings.

As shown in Fig. 1 of the drawings, the bar 47 is adapted to be engaged by the cam 45 when the sliding head 39 is moved downwardly through the action ofthe throw-off bar. The rearward movement of the bar 47 throws upwardly the releasing device, thereby elevating the rear end of the operatin hook and bringing the rollers 27 and 2? to rest on the flanges 53, thereby disconnecting the inking roller carriage from the'opcrating mechanism. It is manifest that as the bar 47 is moved rearwardly the bar 46 will be thrown forwardly into the path of its actuating cam 44, so that when the slid: ing head is elevated by the return of the throw-off bar to its normal position said bar 46 will be engaged by its cam 44 and forced rearwardly. This operation will move the releasing device forward and permit the hook to drop and bring the portion 30 of the slot 29 in position to receive the roller 28. It is manifest from the foregoing that the inking roller carriage will be rendered inoperative when the throw-off bar is moved forwardly and downwardly; and that it will be automatically rendered operative when the throwbfi bar is moved back to its normal position. The mechanism for releasing the operating-hook from the locking roller 28 and for permitting the operating-hook to drop into engagement with said locking roller, constitut 5 what might be properly termed a make-andbreak device in the mechanism for operating the inking roller carriage, that is to say, these devices form means by which the said mechanism may be renderedoperative or inoperative by making or breaking the operative connection be tween the bridge and the inking roller carriage.

It is frequently desirable to maintain the inking roller carriage operatively connected to the rocking bridge when the throw-off bar has been operated, in order that the ink may be rolled a number of times over the printing surface before an impression is taken. To accomplish this I secure the cam 45 on a plate 54, said plate being pivoted at 55 on the sliding head and formed with aloosening the clamping nut 57 the plate 54 may he moved downwardly, thereby withdrawing the cam 45 from the path of the arm 47. In this position of the parts the bars 46 and 47' will not be operated during the vertical reciprocation of the sliding head 39, and therefore the releasing device will remain inactive and the operating-hook will remain in operative connection with the roller 28. The plate 54, when released, will be dropped down to a stop pin 57 on the sliding head.

The inking roller carriage shown in Fig. 1, forms the subject-matter of another application for Letters Patent, and will not, therefore, be described herein.

What I claim is:

1. A printing press comprising a printing bed, an inking roller carriage, a bridge, means for rocking said bridge, means for connecting the bridge to the inking roller carriage, whereby the said carriage will be moved through the operation of the bridge, a throw-off mechanism connected to the bridge for rendering the printing platen inoperative, a compensating means operated by said throw-off mechanism and automatically maintaining the proper operative relation between the bridge and the carriage operating means, and means operated through the compensating means for disconnecting the bridge from the inking roller carriage when the throw-oil mechanism is operated.

2. A printing press comprising a bridge, means for rocking said bridge, a throw-off mechanism, an'inking roller carriage, operative means connecting said carriage to the bridge, means for disconnecting the bridge from the inking roller carriage, a movable cam for operating said carriage disconnecting means, and means connecting said cam to the throwoff mechanism whereby the movement of said cam will be controlled through said throw-0H? mechanism.

3. A printing press comprising an inking roller carriage, a bridge, means for rocking the bridge, an operating rod connected to the bridge and adapted to bemoved vertically as the bridge is rocked, operating means connecting the said rod to the inking roller carriage whereby the rocking of the bridge will move said carriage, means for disconnecting the roller carriage from the operating mechanism, a sliding head mounted on the operating rod, means carried by said head for actuating the carriage disconnecting means, a throw-off mechanism, and means connecting the sliding head to said throW-ofi' mechanism.

operating the said connecting and disconnecting means, and means operatively connecting said cams to the throw-0E mechanism ,vhereby the inking roller carriage will be rendered inoperative when the throw-off mechanism is operated, and will be rendered operative When the throw-off mechanism is returned to its normal inoperative position.

5. A printing press comprising a bridge, means for rocking said bridge, a throw-0E mechanism, an inking roller carriage, operative means for connecting said carriage vto the bridge, a pair of reciprocable rods, means operated by said rods for connecting and disconnecting the bridge and the inking roller carriage, means for operating one of said rods to disconnect the bridge and the inking roller carriage when the throw-0E mechanism is operated, and means for operating the other rod to connect the bridge and the inking roller carriage when the throw-0E mechanism is returned to its normal inoperative position.

6. A printing press comprising a bridge, means for rocking said bridge, a throw-0E mechanism, an inking roller carriage, operative means for connecting said carriage to the bridge, a pair of reciprocable rods, means operated by said rods for connecting and disconnecting the bridge and the inking roller carriage, a cam for operating one of said rods to disconnect the bridge and the inking roller carriage when the throw-oft mechanism is operated, a cam for operating the other rod to connect the bridge and the inking. roller carriage when thethrow-ofl mechanism is returned to its normal inoperthrough the movement of the bridge, a

throw-off mechanism connected to the bridge for renderingthe bridge inoperative for the printing operation, and means operated by the throW-oii mechanism for disconnecting the bridge from the inking roller carriage,

said disconnecting means supporting the carriage when said carriage is disconnected from the bridge.

a 8. A printing press comprising an inking roller carriage, a rocking bridge, a depending rod connected to said bridge, a crank arm connected to the lower end of said rod, an operating-hook connected to said crank arm, meansconnecting said operating-hook to the hiking roller carriage, and means to disconnect the operating-hook from the inking roller carriage, said means serving to support said operatinghook and the said carriage in their disconnected positions.

9. A printing press comprising an inking roller carriage, a rocking bridge, a dependarm connected to the lower end of said rod, an operatinghook connected to said crank arm, means comiecting said operating hook to the inking roller carriage," a thIOW-Off mechanism connected to the bridge, and means operated by said throw-off mechanism to disconnect theoperating-hook from the inking roller carriage and to support said hook and said carriage When said throw-otf mechanism is operated, said means operating to connect the said operatinghook to the inking roller carriage mechanism when the throw-oft is returned to its normal inoperative position.

10. A printing press comprising a printing bed, an inking roller carriage, a bridge, means for rocking the bridge, an operating rod connected to the bridge and adapted to be moved vertically as the bridge is rocked, operating means connecting the said rod to the inking roller carriage whereby the rocking ofthe bridge will move said carriage,

means for disconnecting the rollercarriage from the operating mechanism, a sliding head mounted on the operating rod, means carried by said head for actuating the carriage disconnecting means, a throw-off mechanism, means connecting the sliding head to said throw-on? mechanism, and adjustable means for rendering inoperative the said disconnecting means.

l1. A printing press comprisingabridge,

mg rod connected tosaid bridge, a crank eeann means for rocking said bridge, a throw-0d mechanism, an inking roller carriage, operative means for connecting said carriage to the bridge, a pair of reciprocable rods, means operated by said rods for connecting and disconnecting the bridge and the inking roller carriage, a cam for operating one of said rods -to disconnect the bridge and the inking roller carriage when the throwoff mechanism is operated, said cam being adjustableout of the path of said rod Whereby the disconnecting means may be rendered inoperative, a cam for operating the other rod to connect the bridge and the ink ing roller carriage when the throw-0H mechanism is returned to its normal inoperative position, and means for connecting said cams to the throw-ofi' mechanism.

12. A printing press comprising a bridge, means for rocking said bridge, a throw-off mechanism, an inking roller carriage, operative means for connecting said carriage to the bridge, a pair of reciprocable rods, means operated by said rods for connecting and disconnecting the bridge and the hiking roller carriage, a sliding head, a cam carried by said head and adapted to operate one of said rods to disconnect the bridge and the inking roller carriage when the throw-off mechanism is operated, said cam being adjustable out of the path of said rod whereby the disconnecting means may be rendered inoperative, a cam for operating the other rod to connect the bridge and the inking roller carriage when the throw-01f mechanism is returned to its normal inoperative position, and means for connecting said cams to the throw-off mechanism.

13. A printing press comprising an inking roller carriage, a bridge, means for rocking the bridge, an operating rod connected to the bridge, operating means connecting the said rod to the inking roller carriage, a pair of reciprocable rods, means operated by said rods for connecting and disconnecting the bridge and the inking roller carriage, a sliding head mounted on the operating rod, a cam mounted on said head and adapted to operate one of said rods to disconnect the bridge and the inking roller carriage when the throw-off mechanism is operative, said cam being adjustable out of the path of said rod, whereby the disconnecting means may be rendered inoperative, a cam on said sliding head for operating the other rod to connect the bridge and the inking roller carriage when the throw-0E mechanism is returned to its normal inoperative position, and means for connecting the sliding head to the throw-ofi' mechanism.

let. A printing press comprising an inking roller carriage, a bridge, a reciprocable operating-hook, a rock shaft, upwardly and forwardly extending crank arms connetted to said shaft, links connecting said crank arms to the inking roller carriage, downwardly extending arms carried by said rock shaft, a pin connecting said arms, a roller mounted on said pin and adapted to be en gaged by the operating-hook, a pair of supporting rollers on said pin on opposite sides of the roller engaged by the operating-hook, a hook-releasing device, alifting roller car ried thereby and adapted to engage the lower edge of the operating-hook, supporting flanges on the upper end of said hook-releasing device and adapted to engage the supporting rollers on opposite sides of the operating-hook, and means for moving the hook-releasing device.

15. A printing press comprising an inking roller carriage, a bridge, a reciprocable operating-hook, a rock shaft, upwardly and forwardly extending crank arms connected to said shaft, lin {S connecting said crank arms to the inking roller carriage, doWnwardly extending arms carried by said rock shaft, a pin connecting said arms, a locking roller on said pin and adapted to be engaged by the operating-hook, a pair of supporting rollers on said pin on opposite sides of the locking roller, a pivoted hook-releas ing device, a lifting roller carried thereby and adapted to engage the lower edge of the operating-hook, Curved supporting flanges on the upper end of said hook-releasing device and adapted to engage the supporting rollers on opposite sides of the operatinghook, a pair of reciprocable rods connected to the hook-releasing device, one of said rods being adapted to move the hook-releasing device to free the operating-hook from the locking roller and to bring the supporting flanges directly under the supporting rollers, the other rod being adapted to move the hook-releasing device to permit the hook to engage the locking roller, a throw-off mechanism connected to the bridge, and means operated by said throw-0d mechanism to move the reciprocable rods.

16. A printing press comprising an inking roller carriage, means for moving said carriage, a bridge,means for rocking the bridge, a depending rod connected to said bridge, a crank arm connected to said rod, a reciproeating lever normally connecting said crank arm with the carriage-moving means to impart movement to the carriage when the bridge is rocked, a throw-off mechanism, and means operated by said throw-0H mechanism for disconnecting said lever from the carriage moving means.

17. A printing press comprising an inking roller carriage, means for moving said carriage, a bridge, means for rocking the bridge, a reciprocable member normally connecting said bridge-rocking means and said carriage-moving means to actuate the carriage when the bridge is rocked, a throw-ofl' mechanism, and means operated by said 18. A printing press comprisin an inking roller carriage, means for moving said carriage, a bridge,means for rocking the bridge, a reciprocable member normally connecting said bridge-rocking means and said carriagemoving means to actuate the carriage when the bridge is rocked, a throW-ofi mechanism, means operated by said throW-ofi' mechanism for shifting said reciprocable member out of its normal path to disconnect the carriagemoving means from the bridge-rocking means, and means for supporting said carriage When the carriage is disconnected.

19. A printing press comprising an inking roller carriage, means for moving said earriage, a bridge, means for rocking the bridge, a reciprocable member normally connecting said bridge-rocking means and said carriage-moving means to actuate the carriage When the bridge is rocked, a throw-01f mechanism, means operated by said throwoff mechanism for shifting said reciprocable WILLIAMJ. RAMSAIER.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents 7 Washington, .D. G.

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