US1273004A - Offset perfecting-press. - Google Patents

Description

D. J. SCOTT.

OFFSET PERFECTING PRESS.

APPLICATION FILED SEPT.29. 1916.

Patented July 16, 1918.

%1 Guam mi of New oi ifsnrinmaicrme-rnnsa To all whom it may concern:

Be it n n that 1; D m Soo'rr, ii/Citizen of the United States,-and a resident'of' Plainfield in the county of Unionand State jersey, and useful- Improvements in Offset Perfecting-Presses, of which the following; is a specification.

high class results,

The .present invention relates-generally to offset perfecting presses and has more partlcularly reference to the general arrangement of the units composing such press.

The presentapplication is in part a continuation of, and in part an nnprovement. on, one filed April 2, 1915, Serial No. 18,639,

and hasfor its main object to provide a ma chine in which both sides of :the Web are printed by the offset method without the omission of elements necessary to produce andfat the same time, to provide an arrangement of cylinders whereby all the Workingparts will be completely acce'sible. Another object of the invention is to provide means for conveniently con trolling the various instrumentalities that make up the press.

Accordingly, the invention consists'of the features of construction, combination of parts and arrangement of elements, herein-' after described, a preferred form of which is disclosed in the accompanying drawings and description. However, changes may be'made in the particular form herein described without departing from. the legitimate and intended scope of the inventionas defined in the appended claims.

In said drawings: Figure 1 is a diagrammatic view' showing a machine embodying the invention inclevation.

Fig. 2 is a detail view of the throw-off of the impression-cylinder of the second unit and associated elements.

Similar characters of reference indicate corresponding. parts in the several views.

In thereferred form shown in the drawings, A, and E represent respectively the plate, blanket or transfer, and impression cylinders of one couple or un1t,'wh1 le B, D and F represent respectively the plate, blanket for transfer, and impression cyhn ders of the second printing couple or unit. It will'be observed that the transfer and form-carrying cylinders are arranged one 'above the other, in the present case the formspa -am of Letters meat. 4 p application filed s temser 29, 1916. Serial 1%. 195333; I

have invented certain new" i wayifii i carrying 1 cylinder being lowermost, and form an exposed operating side that is read- 11y accessible tothe operator-for manipulation' of the'form and blanket members ,and

that the impression cylinder of each'unit'iis offset (in this embodiment only partly) out of the vertical plane of the other. cylinders of the unit and is therefore non-adjacent to the operating side. The two units are so. r .55 f I grouped that the operating sides are outermost and the impression cylinders innermost and cbmparativ'ely close together. The impression cylinders are here uppermost of the structure. I v I 1s a source of the supply of paper in web form and L is a delivery, here conveniently represented as a former folder.- These'instrumentalities are locatedf adjacent to the outeroperating sides of the machine and spaced therefrom to afford room .for platforms or'gangways G and H.

' O indicates the usual inking mechanism and N water rollers, which may or may not be employed, that are located non-adj acent to .the operating side of the machine.

37 is an anti -smutting device which en gages with the impression cylinder of the second unit to prevent smutting of the cylinder by the previously printed side of the pa er.

[he paper is ledfrom the, source of supply I over guide r'olls X, underneath gang" way G and one unit or couple to a pointin-A terinediate the two units or couples, thence upwardly between the two units, thence over a guide roller X to the impression cylinder of the other printing couple, thenceto the impression cylinder of'the first-mentioned printing couple; and thence above the inipression cylinders of both printing couples over the guide roller X to former folder L..

It will benoted that the anti-smutting decomprising the unit and outwardly 'o'f the exposed operatingside. The v impression cylinders are likewise movable but'inwardly toward each other away fromtheir cotiperating transfer cylinders.

tion of the elements i an adjusting screw so, that when in handles 39 or. 37

So likewise the dampening mechanisms, when such form a part of the structure, are movable toward each other and away from the form-carrying cylinders. As shown here, the dampening mechanisms are located non-adjacent to the operating side of the machine.

Various instrumentalities may be employed for the purpose 'of effecting separa but inthe preferred form, here disclosed, 53v indicates the shaft of impressionfcylinder F which is mounted'in 'a rectangular sliding box 54:. .This sliding box; carries a shaft 55 that forms one member of the tog Ie, the other member of 'which .is' a link 56. A block 57 is adjustable inf the framing by means of 58 and a' locknut 58. On, the endfof shaft55 is an operating lever-.59 having. secured at its outer end a connecting, rod 60 extending to a bell crank 61'. The'cylinder's E, D and G are similarly mounted and it is therefore unnecessary to describe in detail each mounting, it being sufficient to describe briefly the trip bell crank 61, '61 and 61. Each bell crank is provided fwithga handle indicated respectivelyzit-14,28, 39] an'd. 37'. Extending between bell crank '61. 6e impression cylinder F and bell crank 61"of impression cylinder E ist a rod 26 disconnectible from one of saidjbell cranks by reason of a hook 38. 4 When the'liookis in position, manipulation of either one of handles '14 or 28 will trip both of the impression cylinders toward each other and away from their complementary blanket cylinders. If hook 38 is disconnected,-.each impression cylinder may be tripped independently oflthe other. Similarly, there is'a rod 120 which extends across the machine between bell cranks 61 and 61 of the two blanket cylinders. This rod likewise has a hook connection 36 at one end position manipulation of will trip both blanket cylinders'a'way from the plate and the impression cylinders outwardly of the operating sides of the machine and whichfwhen disconnected, will permit each of said web runs, as shown, and that the anti-smut- .ting device 37 is located intermediate these two web runs. For the sake of convenience, ithlS anti-smutting device 37 is mounted on a {sliding box-54 so that when impression cylinder F is thrown 'ofi,'the anti-smutting device will be moved bodily with There isfalso provided-an eccentric 37 by means of n hichfone of the rollsof theanti-smutting. ,as.

dtyice'j my, be thrownoff" impression .for the unit, said units revenue -riage N which may be moved toward and away from the form-carrying cylinders by means of handle 34. 1

What is claimed is: I 1. A rotary offset perfecting machine compr sing: a plurality of side-by-side units prlntin from positive forms on opposite sides 0 impression receiving material, each unit consisting of a form-carrying, a transfer and an impression cylinder all of substantially the same diameter, the form-can rying and transfer cylinders being arranged in an upright column and the impression cylinder being arranged out of line with the other cylinders and uppermost of said column to afford an exposed operating side being grouped with their operating sides outermost and with their impression cylinders innermost, and an anti-smutting device, engaging with said impression cylinder of saidsecond unit, located intermediate the two units.

' 2. A rotary ofi'set perfecting machine com- 95 prising: a plurality of side-by-side units printing from positive forms on opposite sides of'impression receiving material, each unit consisting of a form-carrying,a trans fer and an impression cylinder all of sub- 100 .stantially the same diameter, the form-car- Y rying and transfer cylinders being arranged in an upright column and the impression cylinder being arranged out of line with the V other cylinders anduppermom of said col 10 5" ting device, engaging withsaid impression 11o cylinder of sald second unit, located'intermediate the two units, and means for. moving the transfer cylinder of each umt out- -wardly with respect to the operating side of said unit and away from the other cylinders 11;; of the unit.

3. A rotary offset perfecting machine comprising: a plurality of side-by-side units printing from positive forms on oppositesides of impression receiving material, each 12o unit consisting of a form-carrying, a transfer. and an impression cylinder all of substantially the same diameter the form-car rying and transfer cylinders eingarranged in an upright column andthe'iinpression cylinder-being arranged out of line with the other cylinders and uppermost of said col-- umn to afford an exposed operatingside for the unit, said units being grouped with their Operating sides outermostand with their i'mssence pression cylinders innermost, means for guiding the web below one unit, thence be-' tween the two units, thence to the impression cylinder of one unit, thence across from one unit to the impression cylinder of the other unit and thence up and around the said first unit, and an anti-smutting device, engaging with said impression cylinder of said second unit, located intermediate the two units.

4. A. rotary ofi'set perfecting machine comprising: a plurality of side-by-side units printing from positive forms on o posits sides of impression receiving materia each unit consisting of a form-carrying, a transfer and an impression cylinder all of substantially the same diameter, the form-carrying and transfer cylinders being arranged in an'upright column and the impression cylinder being arranged out of line with the v thence one unit to and between the other cylinders and uppermost of said column to afiord an exposed operating'side for the unit, said units being grouped with their operating sides outermost and with their impression cylinders innermost, means for guidin the web between the two units,

between the transfer and impression cylinders of the first unit, thence across from transfer and impression cylinders of the second unit and thence above the impression cylinders of both units, and an anti-smutting device engaging with the impression cylinder of the second. unit and'located above the we run between the two units and below the w run above the impression cylinders of the two as units.

'5'. An ofiset web perfecting machine comprising: a lurality oi units, each unit including a arm-carrying, a transfer and an impression cylinder, means for bodily movso ing the impression cylinder of the second unit away from its transfer cylinder, and an anti-smutting device engaging the impression cylinder of the second unit and mounted move bodily with said. impression cylin- 6. An ofiset web perfecting machine comprising: a plurality of units, each unit including a form-carrying, a transierland-an impression cylinder, means for bodilyi-mov- 5Q ing the impression cylinder of the-second umt away from its transfiercylinder, an anti mutting device engaging the impression cylinder of the second unit and mounted to move y with SaidiIHPIQSSIOH cylinder, and means for throwing the anti-smutt' device ofi said impression cylinder.

lgned at Plainfield, in the county of Union and State of New Jersey, this 21th day of September, A. D. 1916. 7

DAVID JOHN SCOTT.

Witnesses:

CARL E. DRANGE J. V. Cones,

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