US1250353A - Printing-press. - Google Patents

Description

E. RICKENBACHEB.

PRINTING PRESS.

APPUCATION FILED MAY 8. I917.

Fawn-wines. 18,1917.

2 SNEETS-SHEET I E. RI CKENBACHER.

PRINTING PRESS.

APPLICATION FILED MAY 8. I917. 1,250,353, v Patented Dec. 18,1917;

2 SHEETS-SHEET 2..

EDWIN RICKENBACI-IER, OF WASHINGTON, DISTRICT OF COLUMBIA.

PRINTING-PRESS.

Specification of Letters Patent.

Patented Dec. 18, 1917.

Application filed May 8, 1917. Serial No. 167,258.

To all whom it may concern:

Be it known that I, EDWIN RIoKnNBAoHER, a citizen of the United States, residing at WVashington, in the District of Columbia, have invented certain new and useful Improvements in Printing-Presses, of which the following is a specification.

My invention relates to improvements in printing presses, and refers particularly to an attachment which, while capable of practical and efficient use upon printing presses, may be used upon other mechanisms and perform its functions in a useful and proper manner.

The leading object of my invention is the provision of a mechanism which can be easily applied to printing presses in general use and which will operate automatically to stop the feed of the paper when a defect is presented in the paper in its feeding operation, such stopping of the paper feeding insuring a saving in time, labor and paper, as well as preventing injury to the type by reason of the paper massing 0r crowding upon the face of the type between the form and pressure rollers.

Another object of my invention is the provision of a mechanism for stopping the feed of the paper, which will be capable of application at a very small expense, which will be absolutely positive and reliable in operation, and which from every point of view will prove efficient, desirable and practical forthe purposes intended.

With these objects in View, my invention, broadly stated, consists of an attachment located in proper relation to the paper feeding rollers and the impression cylinder, which, when the paper is creased, rumpled or other wise defective, will be operated by contact of the defective sheet, to efiect the instant stopping of the advance of the next sheet of paper, thus preventing the further feeding of the paper until proper adjustment has been made.

The invention further consists of an attachment .for automatically stopping the feed of the paper to the impression cylinder, embodying novel features of construction and combination of parts, substantially as shown, described and particularly defined by the claims.

In order that the detail construction and the operation of my invention may be fully understood and its advantages be appreciated, I have shown in the accompanying drawings an attachment constructed in accordance with and embodying my invention. I

Figure 1 is a plan View of my attachment, the impression cylinder and the paper feeding rollers being shown in proper relation and in dotted lines.

of the means for engaging the paper to stop its feed, and

Fig. 5 is a detail view of the connection between the two-part rod or member to allow the proper movement thereof.

The invention is shown in connection with a printingpress in which A represents the impression cylinder, B the paper guide over which the paper passes from the impression cylinder, O the paper receiving and guiding rollers, and D the support for the paper between a pair of the rollers, although my invention may be used in connection with other machines and perform its functions in a practical manner.

Located in proper relation to and above the paper-feeding rollers are the pair of rigidly mounted brackets E, in whose upper ends is mounted the shaft F, which shaft has secured intermediate thereof the sleeve Gr, formed with the depending arm H, having an offset J, to which is secured the slotted foot K, retained in proper relation'to the offset J, by means of adjusting nuts K, said foot being formed with a lug K having mounted therein a spindle K forming the bearing for the pivoted paper engaging finger L. g

The shaft F, has a rocking or tilting action in the brackets, and is retained in normal position by means of the arm M, having one end connected to the shaft, and its other end connected to the bracket by means of a coiled spring M, which retains the shaft and arm with its paper-engaging finger in normal position, but permits said arm and finger to be moved under proper conditions.

To one end of the shaft F, is secured the sleeve N, formed with the rod N, which rod has its inner end N bifurcated and formed with a slot N, which permits connection with the shorter rod 0, and receives the pin 0 on the inner end of said rod 0, while the outer end of said rod is secured at on the shaft P, which shaft is secured in the lower portion of the brackets Q, suitably anchored at R to a part of the machine.

This construction provides a two-part or jointed rod connection between the shaft F, which carries the paper-engaging finger, and the shaft 1, upon which is mounted the pair of curved arms Q, which are retained thereon in proper adjustment by means of the set screws T, and said curved arms have their lower curved end arranged adjacent to the impression cylinder in order that in the event of the paper being defective by reason of a creasing or rumpling, said defeet in the paper will cause such paper to contact with the arms and tilt such arms upward, simultaneously moving the twopart rod and at the same time tilting the arm carrying the paper engaging finger, throwing'the finger quickly upon the paper sheet and causing an instant stopping of the feed of such paper, as clearly shown in Fig. 3, in which is shown the paper as it is fed in dotted lines, also in dotted lines the position the parts of my invention assume when the paper is being stopped in itsfeed, and in full lines the position ofthe parts when conditions are normal, the two-part rod being limited in its downward movement by the pair of stops S, as clearly shown in Fig. 1.

From the foregoing description taken in connection with the drawing, the operation of my invention will be readily understood, and by reference to Fig. 3, it will be noted that in normal position the paper is fed from the guide and feed roller to the form roller and passes therefrom, and in the event of an obstruction upon the paper a contact of the paper with the curved arm is instantly made, whichcauses the parts to assume the position shown in dotted lines, which instantly stops the feed of the paper and insures a saving of time, labor and expense, as well as a waste of paper and damage to the type.

It will be understood that my mechanism can be applied to printing presses and other machinery under proper condition and at a small expense and that it will absolutely operate in a reliable and automatic manner to effect the stopping of the feed of paper or like material.

I claim:

1. In combination-with a printing press, a mechanism for stopping the paper feed, consisting of a shaft, a finger mounted Copies'of-this patent may be obtained for thereon and adapted to engage the paper, a two-part rod connected to said shaft, a shaft connected to the other member of said twopart rod, and means carried by the latter shaft and operated upon by the paper to tilt said-shaft, move the two-part rod and come into contact with the paper to stop the feed thereof.

2. In combination with a printing press, a mechanism for stopping the paper feed, consisting of a shaft, a finger mounted thereon and adapted to engage the paper, a twopart rod connected to said shaft, a shaft connected to the other member of said tw-opart rod, and means carried by the latter shaft and operated upon by the paper to tilt said shaft, move the two-part rod and come into contact with the paper to stop the feed thereof, and means for limiting the movement of said two-part rod.

3. In combination with a' printing press, a mechanism for stopping the paper feed, consisting of a shaft, a finger mounted thereon and adapted to engage the paper, a two-part rod connected to said'shaft, a shaft connected to the other member of said twopart rod, and means carried by the latter shaft and operated upon by the paper to-tilt said shaft, move the two-part rod and come into contact with'the paper to stop the feed thereof, and means forilimiting the 'movement of said two-part rod and for returning the shafts to normal position.

4-. Anattachment of the character de-' scribed, consisting of a pair of suitably spaced apartparallel disposed shafts, a flexibleconnectionbetween said shafts, a paper engaging means carried by one of said shafts and a paper stoppingmeans carried by the other shaft and operated to stop'the feed by the engagement of thepaper with said paper engaging means.

An attachment of thecharacter described, consisting of a pair of suitably spaced" apart parallel disposed shafts, a flexible connection between said shafts, a

paper engaging means carried by one of said shafts, and apaper stopping means carried by the other shaftand operated to stop the feed by the engagement of the paper with said paper engaging means, and means for returning the shafts to normal position-and for limiting the movement of said flexible connection. 7

In testimony whereof I affix my signature in the presence of two witnesses.

EDW'IN 'RIGKENBACHER.

Witnesses MARY E. SMoo'r, IVM. L. Moons.

Washington; 13$.

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