US 1716237 A
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Description (OCR text may contain errors)
June 4, 1929. w. E. MOLINS PRINTING MACHINE Filed July 9, 1926 GOLD FLAKE.
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Patented June 4, 1929.
UNITE. STATES WALTER EVERETT MOLINS, OF DEPTFOBD, LONDON, ENGLAND.
Application filed July 9, 1926, Serial No. 121,437, and in Great Britain July 17, 1925.
This invention is for improvements in or relating to cigarette making machinery, and more particularly to a printing device for use with cigarette making machines of the continuous rod type, and has for its object the provision of a printing device which is simple in its construction and efiicient in its operation.
In cigarette making machinery the pr nting device usually employed, comprises a transfer roller rotatable by a ratchet mechanism and cam operated in such a manner as to periodically moveout of an ink duct,
into contact with the surface of a furnishing roller. The furnishing roller is adapted to reciprocate in the direction of its longitudinal axis and engage with three or more transfer rollers. The transfer roller which is the last to receive its supply of ink from the furnishing roller is adapted to engage with the embossed portion of a printing roller and supply the same with a quantity of ink.
' The printing device referred to above occupies a considerable space upon a cigarette making machine, and it is an object of the present invention to reduce space occupied by such printing apparatus.
The present invention consists of a printing device for use upon a cigarette making machine of the continuous rod type, which comprises, an intaglio engraved roller ada ted to receive ink from a'duct, means or example a doctor blade) adapted to remove excess of ink from the surface of said roller, and means adapted to bear upon saidengraved roller and transfer, at regular spaced intervals; an impression from said engraved roller to a travelling web of cigarette paper.
Further the resent invention consists of the use on a cigarette making machine of the continuous rod type of an intaglio en-' graved roller for printing at regular spaced intervals, upon a travelling web of cigarette paper. 1
It has hitherto been proposed to emplo an intaglio engraved roller for printing upon a travelling web of material but in such cases the finished web has been substantially covered with printed matter and'consequently slight defects produced upon the un-printed portions of the web are scarcely noticeable.
The invention is more particularly described with reference to the accompanying drawings, in which I Fig. 1 illustrates in elevation, a double colour printing device, constructed according to the present invention.
Fig. 2 illustrates a web which has been printed upon by the device illustrated in 1, and
Fig. 3 is a modified construction of the printing elements illustrated in Fig. 1.
Referring to the drawings, a moving web 1 of cigarette paper is passed between an intaglio engraved printing roller 2 and a pressure roller 8. The pressure roller 3 is provided with a boss or raised portion 4 equal in length to the impression it is proposed to reproduce upon the paper. With the above arrangement, the contact of the web 1 with the printing roller 2 takes place only during the time which the boss or raised portion 4 bears upon the web 1, the web at any other time being out of contact with the roller 2. a
The roller 2 is adapted to receive ink from a duct 5, in which is mounted a furnishing roller 6, pivotally mounted in the duct 5 and adapted to be pressed into en gagement with the roller 2 by means of the spring 7. Adapted to engage with the surface of the roller 2 is a doctor blade 8 which is reciprocated in the direction of the longitudinal axis of the roller 2. The rotation of the pressure roller 3 is timed sothat Fig. 1 are similarly constructed, and the rotation of the respective pressure rollers of the printing device is timed so that the printing on the web, is spaced apart by the desired. distance in the manner illustrated in Fig. 2.
Referring to Fig. 3, the pressure roller 3 is carried upon an arm 9 which is pivotally mounted at one end upon a pin 10, and is adapted to engage at its free end with a spring 11 which is arranged to hold the roller 3 in engagement with the surface of the printing roller 2. Mounted on the arm 9 is a roller 12 which is adaptedto enga e with a cam 13, mounted on onerface of t e printing roller 2. The profiler of the cam 13 is designed in such a manner that the pressure roller 3 is moved away from the printing roller 2 immediately the printing operation upon the web 1 has been effected.
What I claim as my invention and desire to secure by Letters Patent is In a cigarette making machine of the continuous rod type in which a web of cigarette paper is drawn continuously from a reel, an intaglio engraved printing roller disposed between the reel and the said drawing means, a furnishing roller rotatably mounted in an ink duct so as to yieldingly engage -with said printing roller and supply ink thereto, a pivotally mounted spring controlled doetor blade arranged to engage with said printing roller, a pressure roller mounted above said printing roller and operable automatically to press periodically a traveling web of paper into engagement with the engraved portion of the said printing roller and permit the web to disengage from the non-engraved portion of said roller.
In testimony whereof I hereunto affix my signature.
WALTER EVERETT MULIN S.