US1060949A - Printing-machine. - Google Patents

Description

W.'SGOTT, DECD. 1.12 D. J. SCOTT, EXEGUTORS. PRINTING MACHINE.

APPLICATION IIILED MAY 10, 1906.

Patented May 6, 1913.

2 SHEETS-SHEET 1.

W. SCOTT, DEGD. I. 5: D. J. SCOTT, EXEOUTORS.

PRINTING MACHINE. APPLIOATION FILED MAY 10, 1906.

1,060,949. Patented May 6, 191 3.

2 SHEET$SHEET 2.

- impression cylinder-is located the delivery lattermay lead to any UNITED STATES PATENT OFFICE.

WALTER SCOTT, OF rPLAINFIELD, NEW JERSEY; ISABELLA SCOTT AND DAVID JOHN SCOTT EXECUTOBS 0F SAID WALTER SCOTT; DECEASED.

PRINTING-MACHINE.

Patented May 6, 1913.

To all whom it may concern:

Be it known that I, WALTER Soon, a citizen of the United States of America, and a resident of Plainfield, Union county, New

5 J ersey, have invented certain new and use ful Improvements in Printing-Machines, of which the following is a specification.

The present invention re ates generally to printing machines, and has more particularly reference to a one-revolution planographic printing machine.

The main object of the invention is to provide suitable tripping mechanism in connection with a machine of this character, and especiall in one in which the form cylinder or cylin ers make a number of revolutions to each impression, and wherein the impres sion cylinder makes but one" revolution to each impression and delivers the sheet in front with the rinted side up.

Accord-in ly file invention consists in the features o construction, combination of parts and arrangement of elements as will be more fully hereinafter disclosed.

Other improvements will appear as the specification proceeds. v

In the accompanying drawings, the invention is embodied in a concrete and preferred form, but changes of construction may of course be made without departing from the spirit of the invention.

In the said drawings: Figure 1 is aside elevation, partly insection, embodying the invention, of so much of a printing machine as is necessary to the understanding of the invention. Fig. 2 is a detail view in section on the line 2-2 of Fig. 1. Fig. 3 is a plan view of one end of the impression cylinder and adjacent'elements. Fig. 4 shows diagrammatically a modification of the arrange ment disclosed in Fig; 1. Fig. 5 is a detail view of the actuating device.

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

1 indicates a framework of any suitable comprising the machine. 2 is the impression cylinder, which preferably makes, and in the present instance does'make, one revolution to each impression. In front of the mechanism indicated by the tapes 3, which 4 suitable delivery, preferably the well-known printed side up 56 drop delivery.

the same cycle of the construction for properly mounting the parts erator by -means of a foot In order to deliver the sheet in front of a one-revolution impression cylinder with the printed side up, it is desifable to provide the said cylinder with an impression surface and atransfer surface. These are indicated respectively by 4 and 5. Furthermore means, as the transfercylinder 6 making two revolutions to each impression, transferring the sheet from one surface to the, other. In the present instance the sheet is taken from the Impression surface to the transfer surface. The transfer cylinder, in the present instance, is similar to one disclosed in an application filed Jan. 25 1904, Ser. No. 190630 and is provided with the perforations 7 for keeping the body of the,

sheet up against thecircumferential guide 8 and away from the cylinder so as not to smudge the freshly printed sheet.

In the form here disclosed, there are provided preferably a bers, in the present instance the form cylinders 9 and 10. These make two revolutions to each impression and are :therefore inked twice to each impression. It will be underare provided for plurality of form memstood that some provision must be made to prevent these cylinders from placing the ink on the transfer surface. Instead of tripping these form cylinders automatically once to each impression, as would have to be done in order to prevent the said transfer of ink,

I prefer to have the said transfer surface be low the level of the itch circumference of the impression cylin er, as shown, thereby avoiding the necessity of automatically tripping the form cylinders. In order to prevent the said form cylinders from placing the ink on the impression surface when a sheet is missed in feeding, &c., trip ing means are provided for tripping bot-h orm cylinders, preferablysimultaneously during machine. These means are normally inoperativeand are under the control of an actuating device which may be either connected to the automatic feeding machine, if such is used, or, as shown in the present instance, under the control of the optreadle. These means will preferably take the following form: The cylinders 9 and 10 are mounted in eccentric bushings 11 connected to the I rock shafts 12 by means of the arms 13 and 14 and rods 15. A suitable. connection as 16 and arms 17 connect the two rock shafts so that they can be moved in unison. 18 indi-.

transfer surface and a hinged portion on the transfer sur ace adapted to be below the level of the pitch circumference of the impression cylinder when it moves past the form member, and adapted to be moved out so as to coact with the transfer cylinder when it moves past the said transfer cylinder. I

4. In a printing machine, the combination with an impression cylinder making one revolution to each impression, an'impres sion surface on the said impression cylinder, a transfer surface also on the-said impression cylinder but below the level of the pitch circumference of the said cylinder, a form member, a transfer cylinder for transferring the sheet from one surface to the other on the impression cylinder, a hinged portion on the transfer surface adapted to be below the level of the pitch circumference of the impression cylinder when it moves past the sheet from form member, and adapted to be moved outward so as to coact with the transfer cylinder when it moves past the said transfer cylinder, and means for tripping the impres- S1011.

y 5. In a printing machine, the combination with an impression cylinder making one revolution to each impression, an impression surface on the said cylinder, a transfer surface also on the said cylinder but below the level of the itch circumference of the cylinder, a trans er cylinder for transferring the sheet from the impression surface to the transfer surface, a hinged portion on the transfer surface adapted to be below the level of the pitch circumference of the impression c hnder when it moves past the form mem er, and adapted to be moved out into contact ,with the transfer cylinder when itmoves past the said transfer cylinder, and means for tripping the impression. 6. In a printing machine, the combination with an impression ,cylinder makin one revolution to each im ression, a de ivery mechanism located in out of the impression cylinder, an impression surface on the impression cylinder, a transfer surface, .on the impression cfylinder, below the level of the pitch circum erence of the said cylinder, a transfer c linder for transferring the the impression surface to the transfer surface, friction rolls for asslstmg in transferring the sheet from the transfer surface to the delivery mechanism, a form member adapted to contact with the lmpression surface but not with the transfer surface, a movable portion on the transfer surface adapted to be below the level of the '80 pitch circumference when moving past the and a cylinder coo said impression cylinder face of the lmpression .other, and means for inder and with the friction rolls when it mplves past the said cylinder and friction ro s.

7. An impression cylinder having a relatively stationary impression surface and a relatlvely movable transfer surface.

' 8. In'combination,

perating therewith, the having a hinged portion forming a part of the surface of the cylinder, normally lying below the pitch an impression cylinderpted to be moved out circumference of the impression cylinder, 1

and automatic means for carrying such hinged portion at the time of passing the other cylinder, out into line with the pitch circumference of the impression cylinder so as to cooperate with the surface of the said other cylinder.

In a printing machine, the combination with an impression cylinder provided,

with an im ression surface and with a movable transfgr surface, a form member arranged to cooperate with the impression surcylinder, a transfer cylinder for transferring the sheet on the impression cylinder from one surface to the lowering the movable transfer surface below the pitch circumference of the impression cylinder when mov- 'ing past the form cylinder and for carrying such movable surface outward to cooperate with-the transfer cylinder when moving past the said transfer cylinder. 7

10. In a printing machine, the combination with an impression cylinder maln'n one revolutionto each im ression, a dellvery mechanism located in ont of the impression cylinder, an impression surface on the impression cylinder, a movable transfer surface on the unpression cylinder, a form 7 cylinder arranged to pression surface, a transfer cylinder for transferring the sheet on the impression cyl-' inder from one surface to the other, and means for lowering the movable transfer surface below the pitch circumference of the impression cylinder when moving past the form cylinder and for moving the transfer surface outward to cooperate with the transfer cylinder when moving past said transfercylinder.

cooperate with the im-- Signed at New York city this 2d day of 7 May 1906. p

s. L 4 WALTER SCOTT. Witnesses: Mraon Summons, Axnn V. Bnn mn.

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