US840885A - Printing-press. - Google Patents

Description

PATENTED JAN. 8, 1907. H.'E. WBSTERVELT.

PRINTING PRESS..

APPLIUATION FILED 0013.30, 1905.

s SHEETS-SHEET 1.

No. 840,885. PATENTED JAN. 8, 1907.

\ H. E. WESTERVELT.

PRINTING PRESS.

APPLICATION FILED 0013.30, 1905.

3 SHEBTSSHEET 2.

PATENTED JAN. 8, 1907.

H. E. WESTERVELT.

PRINTING PRESS.

APPLICATION FILED 001301 1905.

3SHEETS-SHEET 3.

am; ew a @fla'w @15 UNITED STATES PATENT OFFICE.

Specification of Letters Patent.

Application filed October 30, 1905. Serial No. 284,964.

Patented Jan. 8, 1907.

To all whom it may concern.-

Be it known that I, HERBERT E. WESTER- VELT, a citizen of the United States, residing at South Bend, in the State of Indiana, have invented a certain new and useful Improvement in Printing-Presses, of which the fol-- The principal object of the invention is to provide a simple, practical, and efieotive mechanism 'by which an inscriptlon can be printed upon the side of a paper bag upon which the bottom of the bag is folded.

In the accompanying drawings I have shown two different forms of mechanism for accomplishing this'purpose. One is a rotary printing-press and the other a reciprocating press.

In the drawings, Figure 1 is a plan of a rotary-printing-press arrangement adapted for printing paper bags in accordance with my present invention. Fig. 2 is a section taken on line 2 2 in Fi 1. tion of the mac 'ne. Figs. 4:, 5, and 6 are details of construction. Fig. 7 is a side elevation of a reciprocating press having mechanism for printing on fo ded bags embodying my present invention. Fig. 8 is a plan vlew of the same, and Fig. 9 is a etail of construction.

Referring to-the device shown in Figs. 1 to 6, inclusive, I show a frame 1, provided with a platform 2 and also with a bracket 3, which sup orts a table for the paper bagsas they are eing fed to the printing mechanlsm. rotary ba -roll 4 is mounted upon a rotary shaft 5, w ich is supported by the frame 1. This roll is one-half cut away, leaving a solid portion which forms a bed for the paper bag while the same is being printed on. A gripping device consisting of a grippin fin'ger 6, having a gripping-j aw 7, is mounte upon the roll 4 and adapted to grip the top of a paper bag as the latter is advanced alon the guideway 3. A cam 8 is secured to t e frame 1 and constructed with an elevated portion 9, adapted to actuate the ripping-finger 6. By this cam the gripping evice is automatically opened and closed. The shaft 5 is also provided with a pulley 10 and with a gear- Fig. 3 is an end eleva wheel 11. A printing-roller 12 is mounted above the bed-roller 4 and supported by a shaft 13, supported by the frame 1. The printing-roller 12 is provided with printing devices, such as type, which are to print desired inscriptions upon the paper'bags. The roller 12 is also cut away, so that it is actually only a semicylinder; in fact, less than that, because more than one-half is cut away, as is'well shown in Fig. 2. This additional cut-away portion is to permit the gripping device 6 to operate. The shaft 13 is also provided with a gear-wheel 14, which meshes with a gear-wheel 11, and isalso provided with a cam 15. A lever 16 is pivotally mounted upon the frame at 17 and connected at 18 with a blade 19, having supportingarms 20, provided with pins 21 21. The pins 21 21 are arranged to work in slots 22 22, formed in the sides of the machine-frame. A spring 23 is connected at one end to a standard 24 on the frame and at the other end with the lever 16. Thus as the rotary shaft 13 rotates the cam 15 is caused to swing the lever' 16 about its point of pivotal support, and thereby cause the blade 19 to swing downwardly and backwardly. As the bags advance they are printed upon by the typewheel 12. When a bag has advanced sufliciently to bring the forward end of the bagbottom nearly to the ty e, the blade 19 descends and strikes the ottom behind the rimary cross-fold line, thereby tilting up the forward end of the bottom and exposing the side of the bag under the same, which is thereu on printed u on. The bag shown hasa iamond-folded ottom, an end ortion 29 of which projects beyond the en of the body portion of the bag. The invention is applicable, however, to any form of bag having a similar construction. The ed es of the cut-away portions of the gear 1 1 an roller 12 are arranged to come together at the primary cross-fold line of the bag after the bag-bottom is tilted up, and thus the bag is printed and the bottom passed between the rollers without being creased or crushed, and the bag drops from the press in its original folded condition.

Referring to the machine shown in Figs. 7 to 9, inclusive, I have shown a reciprocating printing-press having a bed 25, carrying the type, and a swinging platen 26 for the bags. The press is provided with fingers 28 28, secured to the bed 25 and projecting forwardly and inwardly toward the middle of the bed.

IIO

" It will be understood that changes and modifications can be made without departing from the spirit of my invention; What I claim is- 1. The combination with printing mechanism, of means for tilting the ba -bottom to an upright position across the en of the bagbody, and means for feeding the bag to the printing mechanism so that the latter will print upon the bag-body when the bottom is in its' upright tiltediposition.

2. The combinatlon with the printing and bed rolls, both-of which are cut away topermit the bag bottom to remain in a tilted upright po'sitlon during the printing operation, of means for gripping the bag to the bed-roll,

and means for tilting the bag-bottom into an upright tilted position to permit printing upon that portion of the bag-body adjacent to the bag-bottom.

' ceiving and gui 3. The combination with printing and bed or platen rolls, of means for gripping the bags to one of said rolls, a swinging blade for lifting theforward end of the bag-bottom, and means for actuating said swinging blade.

4. The combination with printing and platen rolls, of a gripping device carried by the platen-roll, a cam for actuating said gripping device, a ivotal lever associated with the printin -roll, acam rotating with the printing-rel for actuating said lever, aswinging blade having supportingarms-pivotal y connected'with saidlever, said arms being provided with ing said pins.

5. The combination with means for printing on the side of the bag on which the bottom is folded, of means for strikin the bot tom beyond the primary cross-fol line and thereby tilting the bottom away from the body to-expose the latter. In witness whereof I hereunto subscrib my name this 11th day of October, A- D. 1905-.

Cpins, and guideways for re- HERBERT E. wEsrERv LT. I

Witnesses:

A. MILLER BELEIELD, I. 0. LEE.

Images