US881998A - Printing-press, especially of the bed-and-platen type. - Google Patents

Description

No. 881,998. 8 PATENTED M'AR.17, 1908.

' A. BURBAGH.

PRINTING PRESS, ESPECIALLY OF THE BED AND PLATEN TYPE.

APPLICATION 'HLED SEPT.26, 1906.

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By his Attorney,

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N A. BURBAGH. PRINTING PRESS, ESPECIALLY OF THE BED AND PLATBN TYPE.

APPLIGQTIONI'ILED 8EPT. 26, 19 06.

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THE NORRIS PETERS $0., WASHINGTON, D c,

'IATENTED MAR. 17, 1908.

UNITED STATES PATENT OFFICE.

ARTHUR BURBACH, OF LEIPZIG-SGHLEUSSIG, GERMANY, ASSIG-NOR TO THE FIRM OF J. G.

SCHELTER & GIESECKE, OF LEIPZIG, GERMANY.

PRINTING-PRESS, ESPECIALLY OF THE BED-AND-PLATEN TYPE.

Specification of LettersPatent.

Application filed September 26, 1906.

Patented March 17, 1908.

Serial No. 336,235.

To all whom it may concern:

Be it known that I, ARTHUR BURBAOH, a

subject of the King of Saxony, residing in Lerpz1g-Schleuss1g, Germany, have invented F certain new and useful Improvements in Printing-Presses, Especially of the Bed-and- Platen Type, of which the following is a specifieation.

This invention relates to printing presses, especially of the bed and platen type.

The object of the invention is to provide means for securely supporting abook or other article on the platen member to be printed in various ways or embossed, or both, upon the platen being brought against the print ing bed.

A further object of the invention is to provide means whereby the book or other article to be printed on one of its edges will be rigidly clamped in proper printing position when the platen reaches the end of its operative stroke or movement, and upon the platen returning the book or other article will be automatically released by the clamping means, whereby its removal from the platen is greatly facilitated.

The invention further comprises means for supporting the book or article at the side or edge opposite the side to be printed in the proper position at the end of the printing movement, which means, when the platen is returned after the printing operation, will automatically advance the book or article from such position and further facilitate the handling of the book or article for removal from the platen.

In the drawings accompanying and forming a part of this application, representing an embodiment of the invention, Figure 1 is a side elevation with the platen and operating members in the open or rear position, and Fig. 2 is a similar view with the platen at the end of its printing stroke, the book being in contact with the bed.

The platen 1 has its curved face 2 arranged to roll on the plane face 3 of the bed member, and is operated by a pair of connecting rods 4, only one of which is illustrated. The connecting rod may be attached to the platen 1 by the usual eccentric bearings 38, and which are adjustable by means of a connecting member 39 to cause the face 6 of the platen to vary its distance from the bed face 40 at 1 the limit of the stroke.

The platen is guided 5 by means of guiding-pins 41 operating in the 1 slot of a slotted member 5, such parts being in duplicate on opposite sides. This slot is so shaped that during the early part of its movement the platen will rock 011 its curved surface 2, and thereupon the pin will slide in the transverse portion of the slot and the platen will move horizontally up against the bed 40.

The book or other article, represented by S, is placed on the transverse face 7 of the platen, which is at right angles to the printing face 6 of the platen. The book has its rear face 12 opposite the face 11 of the edge that is to be printed or embossed by the bed 40 supported by an adjustable bracket 10, secured to the platen by means of a bolt 10*. Means are provided for advancing the book when the platen is moved back after the printing stroke, which means are automatically operated by the press. In the construction shown a number of pins 10 slide in suitable apertures in the bracket 10. A pair of levers 14 are pivoted to the platen at 29, and are also pivotally connected with the pins 10 at 13 ,whereby rocking of the lever will reciprocate the pins to advance the book from the printing position, shown in Fig. 2, to the advanced position shown in Fig. 1. In the latter position the book or other article can readily be grasped by the operator and its removal from the platen greatly facilitated. The next book or article can be in a similar manner grasped by its edge and placed inthe same position.

The pins 10* and levers 14 are automatically orperated by means of a pair of slides 16 operating in socket members 20 and 30 on each side of the platen respectively. The extremity 21 of the slides 16 normally project beyond the curved face 2 of the platen, as shown in Fig. 2. But when the platen is in its extreme rear position the end 21 will be engaged by the face 3 of the bed member and moved upward to the position shown in F g. 1. This movement, by reason of the pins 17 engaging slots 171 in the levers 14, will rock the levers and advance the pins 10 to move the book to the position shown in Fig. 1. But as soon as the press is operated from the connecting rods 4, the slides 21 being re-' leased from the bed surface 3, the slides will be retracted by coiled springs 18 connected between the sockets 30 and lugs 31 secured to the slides. Means are also provided for engaging the face of the book or article opposite to the face resting on the surface 7 of the platen. In the construction illustrated a pair of rods 23 are arranged, one on each side of the platen and slidable in socket members 32 and 33. At the upper end the rods are connected by a clamp bar 22, which is adjustable thereon by means of nuts 34 and 35 to accommodate dif erent thicknesses of books or other articles. The clamp rods when released are caused to press the bar 22 on the book by means of coiled springs 24 on the rods 23, interposed between lugs 37 on the rods and the sockets 33. I/Vhen the laten is in the closed position, as shown in ig. 2, the springs are free to act and clamp the book. But as the platen is drawn back to its open position the clamp rods are moved upward away from the book by means of a roller 26 on the end of each slide 16, engag ing a wedge member 25 fast on each of the rods 23. By this means the rods and clamp plate are moved upward to the position indicated in Fig. 1. This will permit the ready removal of the book in the open position. But as soon as the platen is operated toward the closed position, upon the slides 21 being free from the bed face 3, the slides being retracted by the springs 18, will release the rods and the springs 24 will cause the clamp blade 22 to securely engage the hook and re tain it in proper position for printing or embossing. Additional means are also provided for rigidly locking the rods 23 to hold the book in printing position. In the arrangement shown the beveled edge blocks 27 are secured on the lower end of each rod 23 and engage beveled edge projections 28 on the bed member. As the platen approaches the printing position thesebeveled surfaces will engage and draw the clamp blade 22 downward to engage the book, and there upon parallel faces of the said members 27 and 28 will engage and retain the clamp rod in its locking position.

Having thus described my invention, I claim:

1. In a press, the combination of a bed member having a printing face, and having a face extending perpendicular to the printing face, a platen member having a curved face by which the platen can roll over the said perpendicular face of the bed member, the platen member having a face extending transversely to the printing. face of the bed when the platen is in the printing position, a support adjustably mounted on said transverse face of the platen to engage the side of a book or article opposite the side to be printed by the said face of the bed, means connected with said support and movable to engage the article to advance it from the support, said means having a member normally projecting beyond the curved face of the platen to engage the bed and thereby cause the support to advance the article, and

means for retracting the support and said means.

2. In a press, the combination of a bed member having a printing face, and having a face extending perpendicular to the printing face, a platen member having a curved face by which the platen can roll over the said perpendicular face of the bed member, the

platen member having a face extending transversely to the printing face of the bed 7 platen to engage the bed and thereby cause the support to advance the article, means for retracting the support and said means, and clamping means arranged to lock the article in its printing position.

3. In a press, the combination with a bed .member having a printing surface, and a platen movable toward and from said surface, of a support secured on a face of the platen extending transversely to the printing face of the bed in the printing position of the platen, whereby to engage a book or other article on its side opposite the side to be printed, means automatically operated by the platen to advance the book beyond its printing position upon the platen being retracted after the printing operation, and means for engaging the book or article on the side opposite the said transverse side of the platen, said means being automatically operated in a direction parallel with the printing surface of the bed during the movement of the platen to clamp the book when the platen is in the printing position, and to release the book when the platen is retracted from the printing position.

4. In a press, the combination with the bed member having a printing surface and a platen movable to and from the printing surface and provided with a face extending transversely to the printing surface when in the printing position, of a supporting member on said transverse face arranged to engage the side of a book or article opposite the side to be printed, and a clamping member carried by the platen and automatically operated in a direction parallel with the printing surface of the bed to engage the book or article to press it against said transverse face when the platen is in the printing position, and to release the book or article when the platen is retracted from the printing position.

5. In a press, the combination with the bed member having a printing surface and a platen movable to and from the printing surface and provided with a face "extending transversely to the printing surface when in the printing position, of a supporting member on said transverse face arranged to engage the side of a book or article opposite the side to be printed, a clamping member carried by the platen and automatically operated to engage the book or article to press it against said transverse face when the platen is in the'printing position, and to release the book or article when the platen is retracted from the printing position, resilient means organized to operate the clamping member toward its clamping position, and a positive locking means arranged to secure the clamp in its final clamping position.

6. In a press, the combination of a bed member having a printing face, and having a face extending perpendicular to the printing face, a platen member having a curved face by which'the platen can roll over the said perpendicular face of the bed member, the platen member having a face extending transversely to the printing face of the bed when the platen is in the printing position, a support adjustably mounted on said transverse face of the platen to engage the side of a book or article opposite the side to be printed by the said face of the bed, a member connected with said support and movable to engage the article to advance it from the support, slide members on the platen normally projecting beyond the curved face thereof and retained in such position by resilient means, whereby the projecting end of the slide will engage the said perpendicular face of the bed to be operated thereby, levers carried by the platen and connected with the slides and with the advancing members on the support, whereby the latter members are advanced and retracted upon the said projecting end of the slides engaging and disengaging the bed.

7. In a press, the combination of a bed member having a printing face, and having a face extending perpendicular to the printing face, a platen member having a curved face by which the platen can roll over the said perpendicular face of the bed member, the platen member having a face extending transversely to the printing face of the bed when the platen is in the printing position, a support adjustably mounted on said transverse face of the platen to engage the side of a book or article opposite the side to be printed by the said printing face of the bed, a member connected with said support and movable to engage the article to advance it from the support, slide members on the platen normally projecting beyond the curved face thereof and retained in such position by resilient means, whereby the projecting end of the slide will engage the said perpendicular face of the bed to be operated thereby, levers carried bythe platen and connected with the slides and with the advancing members on the support, whereby the latter members are advanced and retracted upon the said projecting end of the slide engaging and disengaging the bed, rods slidable on the platen member, a clamping plate secured to said rods and arranged to press the book or article against the transverse face of the platen, and means on said slide members arranged to operate said rods.

8. In a press, the combination of a bed member having a printing face, and having a face extending perpendicular to the printing face, a platen member having a curved face by which the platen can roll over the said perpendicular face of the bed member, the platen member having a face extending transversely to the printing face of the bed when the platen is in the printing position, a support adjustably mounted on said transverse face of the platen to engage the side of a book or article opposite the side to be printed. by the said printing face of the bed, a member connected with said support and movable to engage the article to advance it from the support, slide members on the platen normally projecting beyond the curved face thereof and retained in such position by resilient means, whereby the projecting end of the slide will engage the said perpendicular face of the bed to be operated thereby, levers carried by the platen and connected with the slides and with. the advancing members on the support whereby the latter members are advanced and retracted upon the said projecting end of the slides engaging and disengaging the bed, a pair of slides movably supported on the platen, a clamping bar secured. to the slide and arranged to engage the outer face of the article to clamp it on the transverse face of the platen, wedge members carried. by the said rods, rollers on the end of said slides arranged to engage the wedge members and shift the rods to move the clamp bar away from the article, and springs arranged. between the rods and the platen tending to retain the rods in the clamping position.

9. In a press, the combination of a bed member having a printing face, and having a face extending perpendicular to the printing face, a platen member having a curved face by which the platen can roll over the said perpendicular face of the bed member, the platen member having a face extending transversely to the printing face of the bed when the platen is in the printing position, a support adjustably mounted on said transverse face of the platen to engage the side of a book or article opposite the side to be I printed. by the said printing face of the bed,

a member connected with said support and movable to engage the article to advance it from the support, slide members on the platen normally projecting beyond. the curved face thereof and retained in such position by resilient means, whereby the proj ecting end of the slide Will engage the said perpendicular face of the bed to be operated thereby, levers carried by the platen and connected With the slides and With the advancing members on the support whereby the latter members are advanced and retracted upon the said projecting end of the slides engaging and disengaging the bed, a pair of slides movably supported on the platen, a clamp bar secured to the slide and arranged to engage the outer face of the article to clamp it on the transverse face of the platen, Wedge members carried by the said rods, rollers on the end of the said slides arranged to engage the Wedge members and shift the rods to move the clamp bar away from the article, springs arranged between the rods and the platen tending to retain the rods in the clamping position, heads carried by the said rods and provided With an inclined face and also a face parallel with the said perpendicular face of the bed member, and an extension on the bed member having inclined faces and also faces parallel With the said perpen dicular face of the'bed, whereby the rods are positively moved to clamp the book and thereupon locked in the clamping position.

ARTHUR BURBACH. Witnesses:

REINHARDT RARLER, RUDOLPH FRIoKE.

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