US1370624A - Plate-registering mechanism - Google Patents

Description

W. H. BANZETT.

PLATE REGISTERING MECHANISM.

APPLICATION FILED JULY 23.4919

. 37 24 Patented M21118, 1921.

SHEET 1.

2 SHEETS by his Aim/"nay W. H. BANZETT.

PLATE REGISTERING MECHANISM.

APPLICATION FILED IULY 23,1919.

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[it 21022 for I/Vz'lliqzm H Bazzzeii has Attorney -UN TED STATES \VILLIAM EL BANZET'I', Y3 BERGENFIELD, NEW' JERSEY, ASSIGNOR T0 AMERICAN LITHOGRAPHIC COMPANY, OF NEVT YORK, N. Y., A. CORPORATION OF NEW YORK.

FLATE-EEGISTERING MECHANISM.

Specification of Letters Patent.

Patented Mar. 8, 1921.

Application filed July 23, 1919. Serial No. 312,813.

To alZ whom it may concern Be it known that 1, Human H. BANZETT, citizen of the United States, and a resident of Bergenfield, in the county of Bergen and State of New Jersey, have invented certain new and useful Improvements in Plate-Registering Mechanisms, of which the following is a specification.

This invention relates to plate registering mechanisms for printing presses. The object of my improvements is to provide mechanism of the class specified, of simple construction, and which can be readily manipulated and accurately adjusted for bringing a plate on one cylinder or platen into close register with a similar plate on another cylinder or platen. To these ends my improvements comprise features illustrated in their preferred embodiment in the drawings accompanying this specification, where1n:

Figure 1 is a diagrammatic side elevatlon of the essential elements of a multi-cylinder rotary printing press. Fig. 2 is a plan view of one of the plate holding means for a cylinder. Fig. 3 is a cross-sectional elevation on line 33 of Fig. 2. Fig. 4 1s a plan view of another of the plate holding means for a cylinder. Fig. 5 is an end elevation of what is shown in Fig. 4. Fig. 6 is a crosssectional elevation on line 6-6 of Fig. 4. Fig. 7 is an end elevation of a plate clamping and tensioning means of well known character. The drawings are all to one scale.

Referring now particularly to Fig. 1, impression cylinder 2 has adjacent thereto and for coaction therewith a plurality of form cylinders 7, 8 and 9 and which cylinders are provided with des1gn bearing plates 4, 5 and 10, respectively. Said form cylinders 7, 8 and 9 are provided withthe usual inking mechanisms as 11 to cylinder 7 Also, said design bearing plates 4, 5 and it) may be adapted for printing in a plurality of colors, all contributing to the printing on a sheet carried by cylinder 2 of a design of predetermined character. In any case 1t is required that the impressions from the several cylinders '7, 8 and 9 on the sheet carried by cylinder 2, shall be in accurate register. Approximate register is easily attained by a variety of well known means, but the final adjustment of the several design plates on the several cylinders, respectively, into highly accurate ad ustment has heretofore been attended not only with difficulty but has been attained only after more or less protracted experimentation, which consumes time and patience and is attended by wasteful making of proofs. By my improvements the plates may be set in primary approximate register of great accuracy and the final adjustment of such minute differences as remain may be made with promptness and precision.

To this end I attach to one end of each of the several plates which are to be brought into register on the cylinders, a bar in predetermined relation tothe design on the plate, len gthw1se, crosswise and angularly thereof. Said bar for convenience may comprise two members 12 and 13 between which the end of the plate, as plate 4, is clamped. This bar may be fixed to said plate before the design is applied to the plate and may be used as a gage for locating the design on the plate, or, it may be attached after the design is applied. In cylinder 7 there is provided fixed holding block 14 having a seat for the reception and accurate location of bar 12, 13 and clamp members 15 for securing said bar in place on its seat. Also sa1d bar 12, 13 is located endwise block 14 by stops 16, 17. The other end of said plate 4 may be tensioned to draw the plate snugly to the cylinder by some well known means such as shown in Fig. 7. On cylinder 8, plate 5, which is also provided at one end with bar 12, 13 similar to bar 12, 13 of plate 4, may be provided at its other end with a similar bar 12, 13. These bars 12, 13 on opposite ends of plate 5 are mounted in seats and clamped in place in opposite holding blocks 18, 18 somewhat similar to block 14 but differentiated by the fact that blocks 18 are pivotally mounted on bolt 19 midway their lengths in cylinder 8. For angularly adjusting said blocks push screws 20, 2O abutting against wall 21 of said cylinder are employed. For adjusting bars 12, 13 a A ENT, ,.QFF .ICE

minute distance circumferentially of the cylinder and relatively to block 18, wedges 22, 23 may be employed. For adjusting bars 12, 13 lengthwise block 18 and cylinder 8, opposite angular arms 24, 25 pivoted at 26, 27 respectively on block 18, are provided. One end of each of said arms bears against one end respectively of bar 12, 13 and the other end is provided with push screw 28 impinging against a wall of block 18. Thus by means of the features just described bars 12, 13 and plate 5 to which they are attached may be adjusted lengthwise, crosswise and angular-1y, relatively to said cylinder 8, to bring plate 5 on said cylinder into accurate register with plate 4 on cylinder 7. Additional cylinders, as 9, are similarly equipped whereby their plates, as plate 10 on cylinder 9, may be brought into accurate register with the plates on the preceding cylinders.

I claim:

1. In plate adjusting means, the combination of a block, a plate having a bar attached to an end thereof, a seat in said block for said bar, and means for adjusting said bar lengthwise said block comprising a pivoted arm, one end of said arm bearing against an end of said bar and the other end of said arm being provided with an adjusting screw for engagement with said block.

2. In plate adjusting means, the combination of a block, a plate having a bar attached to an end thereof, a seat in said block for said bar, means for adjusting said bar transversely said block comprising a wedge between said bar and block, and means for adjusting said bar lengthwise said block comprising a pivoted arm, one end of said arm bearing against an end of said bar and the other end of said arm being provided with an adjusting screw for engagement with said block.

3. In plate adjusting means, the combination of a cylinder, a block pivotally mounted on said cylinder, means for swiveling said block on its pivot, a plate having a bar attached to an end thereof, a seat in said block for said bar, means for adjusting said bar transversely said block, and means for adjusting said bar lengthwise said block.

In witness whereof, I hereby atlix my signature this 12th day of July, 1919.

WILLIAM H. BANZETT.

Witnesses:

SYLVIA T. HARRIS, GUSTAVE VHAUSTEIN, Jr.

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