US805172A - Registering device for printing-machines. - Google Patents

Description

PATENTED NOV. 21, 1905.

W. H. WALDRON. REGISTERING DEVICE FOR. PRINTING MACHINES.

APPLICATION FILED DEC. 8, 1904.

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PATENTED NOV. 21, 1905.

W. II. WALDRON. REGISTERING DEVICE FOR PRINTING MACHINES.

APPLICATION I'ILED DEG. 8, 1904.

2 SHEETS-SHEET 2.

INVENTOR wllz'afic i: 7763071022.

WITNESSES:

ATTORNE UNITED STATES PATENT OFFIOE.

WILLIAM HUBELI WALDRON, OF NEW BRUNSWICK, NEW JERSEY, ASSIGNOR TO JOHN WALDRON COMPANY, OF NEW BRUNSWICK,

NEW JERSEY.

REGISTERING DEVICE FOR PRINTING-MACHINES.

Specification of Letters Patent.

Patented Nov. 21, 1905.

Application fil d December 8, 1904. Serial No. 286,012.

To all whom it nuty concern:

Be it known that LWILLIAM HUBELI VVAL- DRON, a citizen of the United States, and a resident of New Brunswick, in the county of Middlesex and State of New Jersey, have invented a new and Improved Registering Device for Printing-Machines, of which the following is a full, clear, and exact description.

The invention relates to wall-paper-printing machines, and more particularly to such machines in which the paper is run two or more times through the machine for successive impressions.

The object of the invention is to provide a new and improved registering device for multicolor-printing machines, arranged to permit a quick, convenient, and easy adjustment of the printing-rolls relative to the impressioncylinder to insure an accurate registering of the printing-rolls with a previous impression on the paper.

The invention consists of novel features and parts and combinations of the same, as will be more fully described hereinafter and then pointed out in the claims.

A practical embodiment of the invention is represented in the accompanying drawings, forming a part of this specification, in which similar characters of reference indicate corresponding parts in all the views.

Figure 1 is a side elevation of a printingmachine provided with the improvement, parts of the printing-machine non-essential to the working of the improvement being omitted. Fig. 2 is an enlarged sectional plan view of the improvement. Fig. 3 is a cross-section of part of the same on the line 3 3 of Fig. 2; and Fig. 4. is' an end elevation of the improvement as applied, minor parts of the printing-machine being omitted.

The impression-cylinder A and the printing-rolls B of a multicolor-printing machine are mounted in the usual manner and their supports carried on the main frame 0, and on the shaft A of the impression-cylinder A is secured a gear-wheel A in mesh with a pinion A secured on a shaft A, provided with a driving-pulley A connected with other machinery to rotate the shaft A and the impressioncylinder A. (See Fig. 4:.) On the shaft A is secured a pinion A geared with a gearwheel A journaled on a stud A .carried by the frame O, and this gear-wheel drives the coloraprons in the usual manner, so that further description of this portion of the machine is not deemed necessary.

A gear-wheel F for driving the printingrolls B is journaled on a stud F, held on the frame C, and this gear-wheel F is in mesh with a pinion D, mounted to rotate loosely on a sleeve E, secured on the shaft A* above mentioned.

On the hub of the pinion D is formed or secured a worm-wheel D in mesh with a worm G, the shaft G of which is journaled in suitable bearings E, secured to a flange E integral with the sleeve E, so that when the colorprinting machine is in motion and the shaft A rotates then the sleeve E rotates with the shaft A and as the sleeve E and the pinion D are locked together by the worm-wheel D and the worm G it is evident that the pinion D is rotated to drive the gear-wheel F and the printing-rolls B. On one end of the sleeve E is secured a sprocket gear-wheel H, connected by a sprocket-chain H with a sprocket-wheel H secured to the hub of a bevel gear-wheel I, (see Fig. 2,) mounted to rotate loosely on a transversely-extending shaft J, journaled in suitable bearings on a frame K, which may form part of the main frame O or be separate therefrom. The bevel gear-wheel I is in mesh with one side of an intermediate bevel gear-wheel I, mounted on a shaft 1 and in mesh at the other side with a bevel gear-wheel 1 secured to the shaft J, the outer end of which is connected by a spurwheel J with a spur-wheel J secured. on a shaft J parallel to the shaft J, and likewise journaled in suitable hearings on the frame K. On the shaft J is secured a sprocketwheel L, connected by a sprocket-chain L with a sprocket-wheel L secured to the hub of a bevel gear-wheel N, mounted to rotate loosely on the sleeve E adjacent to the sprocket-wheel H. The bevel gear-wheel N is in mesh with a bevel gear-wheel N, mounted to rotate loosely on a stud N projecting from the sleeve E, and on one face of the bevel gear-wheel N is secured or formed a spur-wheel N in mesh with a pinion l secured to the shaft G of the worm-wheel G.

When the sleeve E rotates, as previously described, the rotary motion is transmitted to the bevel gear-wheel I by the sprocketwheels H H and the sprocket-chainH, and

the rotary motion of this bevel gear-wheel I is transmitted by the bevel gear-wheel I to the bevel gear-wheel I to rotate the shaft J in unison with the sleeve E, the rotary motion of the shaft J being transmitted by the gear-wheels J J to the shaft J so that the latter rotates at the same speed as the shaft J. The rotary motion of the shaft J is transmitted by the sprocketwheels L L and sprocket-chain L to the bevel gear-wheel N to rotate the latter at the same rate of speed as the sleeve E and in the same direction. Now when the machine is running and the sleeve E is rotated, as described, then the bevel gear-wheel N, spur-wheel N and pinion l are bodily carried around by the said sleeve, and as the bevel gear-wheel N is rotating in unison with the sleeve it is evident that the bevel gear-wheel N, spur-wheel N and pinion N do not turn on their axes, and hence the worm G is not rotated, and it and the worm-wheel D simply act as a locking device to lock the pinion D to the sleeve E for the pinion to rotate with the sleeve and to drive the printing-rolls B.

In order to turn the pinion D on its sleeve E in either a forward or backward direction to set the printing-rolls B ahead or backward with a view to obtain accurate registration with the impressions already on the paper now run a second time through the machine, the following device is provided: The shaft 1 of the intermediate bevel gear-wheel I is journaled radially in the web of a sprocketwheel 0, mounted to rotate loosely on the shaft, (see Figs. 1 and 2,) and this sprocketwheel 0 is connected by a sprocket-chain O with a sprocket-wheel 0 secured on a shaft 0 journaled on the main frame C, and provided with a hand-wheel 0*, under the control of the operator, for turning the said sprocket-wheel O in either direction to cause the chain O to correspondingly turn the sprocket-wheel O. Ordinarily the sprocketwheel 0 is at a standstill and is only rotated forward or backward by the operator manipulating the wheel 0 whenever it is necessary to give additional movement to the printingrolls with a view to obtain accurate registration, as above described. By turning the sprocket-wheel O in a forward direction the intermediate bevel gear-wheel I is carried bodily along, and in doing so it rotates the sprocket-wheel 1 correspondingly faster than the sprocket-wheel I, and in case the sprocketwheel 0 is turned in the reverse direction then the sprocket-wheel O is similarly turned and the intermediate bevel gear-wheel I is carried bodily backward, and thereby imparts a speed to the sprocket-wheel I less than that of the sprocket-wheel I. As the sprocketwheel I is secured on the shaft J and the latter is geared to the worm-wheel shaft G, as previously explained, it is evident that the worm Gris rotated either forward or backward to give an additional turning movement to the worm-wheel D and the pinion D-that is, to increase the latters speed or to reduce it relative to the shaft A, the impression-cylinder A, and the surface speed of the paper on which the impression is to be made by the printingrolls B, driven from the said pinion D. Thus the printing-rolls B are shifted forward or backward the desired distance until accurate registration of the printing-rolls with the previous impression on the paper is had.

It is understood that by the arrangement described the shaft A drives the gearing and the gearing is controlled by the manually-operated hand sprocket-wheel to increase or decrease the speed of the pinion D to shift the printing-rolls forward or backward for the purpose described. It is further understood that the sprocket-wheels H H sprocket-chain H, and bevel gear-wheel I is the driving portion of the gearing driven from the shaft A, while the bevel gear-Wheel I shaft J, gearwheels J J shaft J, sprocket-wheels L L sprocket-chain L, bevel gear-wheels N N, spur-wheel N pinion N worm G, and wormwheel D form a return-gearing for rotating the pinion D at an increased. or retarded speed to shift the printing-rolls simultaneously, and, according to the desires of the operator, manipulating the sprocket hand-wheel in order to bring the printing-rolls in accurate register with the impression already on the paper.

It is understood that by subjecting the paper to an impression and drying it the paper shrinks unevenly, and hence when the paper with its first impression thereon is run asec- 0nd time through the machine it is evident that the printing-rolls B are almost constantly out of register with the previous impression.

By the arrangement described the operator in charge constantly watches the second impression, and if the second impression is out of register with the first one he simply turns the hand-wheel 0* correspondingly forward or backward until the printing-rolls B run in register with the first impression.

By the arrangement described a most minute adjustment of the printing-rolls relative to the first impression on the paper can be had without much exertion on the part of the operator, as the gearing described is driven from the shaft A and is controlled by the operator.

Having thus described my invention, I claim as new and desire to secure by Letters Patent 1. In a printing-machine, the combination of the impression-cylinder with the printingrolls, a driven shaft geared with the impression-cylinder, a sleeve secured on the said shaft, a gearing positively-driven from the said sleeve and having a return-gearing, and a driving and locking gear driven from the said return-gearing,mounted on the said sleeve and having a shiftable pinion loose on the sleeve and geared with the printing-rolls.

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2. In a printing-machine, the combination of the impression-cylinder with the printingrolls, a driven shaft geared with the impressioncylinder, a sleeve secured on the said shaft, a gearing positively driven from the said sleeve and having a return-gearing,a driving and locking gear driven from the said return-gearing, mounted on the said sleeve and having a shiftable pinion loose on the sleeve and geared with the printing-rolls, and a manually controlled device for controlling a member of the said gearing, to increase or decrease the speed of the said return-gearing and that of the shift-able member and the printing-rolls.

3. In a printing-machine, the combination of the impression-cylinder with the printingrolls, a driven shaft geared with the impres- W ILLIAM HUBELI WALDRON. Witnesses:

E. A. WALDRoN, F. WV. HEATH.

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