US990311A - Paper-guide for printing-presses. - Google Patents

Description

W. H. STRATTON. PAPER GUIDE FOR PRINTING PRBSSBS.

APPLICATION FILED AUG. 2 1910.-

Patented Apr.25, 1911.

2 BHBETB-SHEET 1.

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-W. H. STRATTON. PAPER GUIDE FOR PRINTING PRESSLES.

APPLIOAT ION FILED AUG. 2, 1910.

9905311. Patented Apr. 25,1911;

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tlhliTE D e TATES WILLIAM H. STRATTON. OF CHICAGO, ILLINOIS;

Specification of Letters Patent.

en rant ornien.

PRINTING-PRESSES Patented Apr. 25, 1911.

Application filed August 2. 1910. Serial No. 575.168.

T all whom it may concern:

lie it known that l. \VILLI'ML H. Stavrrorv'. citizen of the United States, residing at. Chicago, inthe county of Cook and State of Illinois. have invented certain new and useful lm n'ovements in Paper-Guides for lrinting-Presses. ot which the following is a specification.

This invention relates to paper guides for tion or hand adjustment of the guides. and

enables thenr to be very quickly and easily set. the adjustment being generally more certain and convenient in operation.

The inventidn is illustrated in the accompanying drawings, two forms-of guides being shown.

Figure 1 is a plan view of a portion of a press with the guides in place. Fig. 2 is an enlarged plan view with a portion of the feed table. showing. Figs. Z?- and l are ditt'erentside elevations at the side guide. Fig. 5 is a section of the side guide on the line 5'-5 of Fig. 9.

("xuides containing or embodying the invention maybe attached to any desired part of the press. serving the purpose thereof.

As an ordinary side guide one of the devices is secured on the upper surface of the ordinary feed table ot'a printing press, to guide the paper to a certain part of the printing presscylinder. As drop' guides the devices will be used in pairs and secured to a horizontal shaft or rod opposite the end of the feed table, and having a method of operation known to those skilled in the art.

Referring specifically to the drawings, 0 indicates the feed table of a printing press, and is a small electric motor fastened to an angle 'l'rame ll,'the lower flange of which is pivoted at '12 to a slotted arm 13. The pivotal connection allows the guide to'be used either right or left as desired. The arm l is slotted to permit adjustment of the device on the teed table, and may be set by a bolt l3" fitting through a hole in the table.

{ The motor sl'iatt carries a worm ti which I meshes with a worm gear I? on the end of i a shatt It? wlnch is mounted to turn in a t sleeve or hearing 11 forming a part of the frame l\ pin 17. projecting into a ip'roove ill the shaft. prevents longitudina movement of the latter. The shaft 16 is redu'eed within the bearing. to a [ford space for a coiled spring '18 in compression between the shoulder of the shaft. or rather between a washer 1R thereon. and the end of a tube 20. The shaft is still 'Further reduced as indieated at 19. to a diameter less than the inner diameter of the tube. and the rethreaded. The tube is also threaded as indicated at 1 at its inner end. that the end toward the motor. and the remainder of the tube is not threaded, and is slightiy larger than the threaded part of the shaft 16.

longer than the reduced part 19 of the shaft, and when said tube by rotation of the shaft to is drawn in or retracted to its full extent the spring 18 is slightly compressed, and

the threads of the shaft 10 whenever said shatt isturned in a direction to advance or push the tube outwardly.

At its outer end the tube "20 is provided with a head 21, fastened thereto by means of a stud Q1 and a pin 21 connecting the tube and stud. the latter fitting within the 'former. The head 21 also has a threaded stud 26 on the opposite side, which receives the guide finger or plate which rests on the feed table, said guide plate being held between a spring finger 22 and a nut 26, which latter also holds a curved finger 27 which, is bent over and presses at its free end against the side of the guide plate 25. The finger 22 is pivoted at 23, in a slot in the head 21. and is pressed to and the guide plate by a spring 24. This construction per mits slight yielding movement or resistance of the spring 25. which prevents binding against the paper.

The device above described is illust 'ated particularly in Figs. 1 to 5 inclusive, and constitutes the side guide. The operation of the motor is controlled by a reversing switch 29, current being supplied from any suitable source. In the operation of the device when the motor is driven in either direction as desired, the screw shaft 16 is 1 turned by means of the worm, and accordmaindcr ol the shaft within the tube is The threaded part of the tube 20 is slightly thus tends to retingage the threads 20 with ingly the tube 20, its head, and the guide plate carried thereby, are advanced or re- .tracted to the desired, extent. If a'dvanced too far, the tube will simply run off the "thre ds atthe end of. the shaft. If retracted to t e limit, the threads will run of? the threads at'the inner end of the shaft 16 and onto the plain part 19 of the shaft, the spring 18. being then slightly compressed, as above described. This prevents wrecking of the device. .When' the motor is then reversed, the spring wii) cause the threads to reengage. The guide plate may thus be moved to any desired-position, and a very fine'adjustment is permitted.

The mvention is not limited to the exact embodiment shown, but various modifications may be made Within the scope thereof,

of a feed table, a frame pivotally mounted thereon to swing 1n aplaue parallel to the u'ppersurface of the ta 1e, and a motor and .guide member mounted on the frame, the

guide member being" operatively connected to themotor. Y

9,. In a paper feed guide for printin presses or thelike, the combination with a feed table,' of an adjustable support thereon, a frame pivoted to the support, a motor on said frame, and a guide member carried bysaid frame for movement on the table and operatively connected to the motor fo adjustment by operation of the latter.

3. In a guiding device, the combination of a screw shaft having a reduced part, a guide membenfi. tube fitting over the shaft and connected at one end to the guide memher, and threaded at the other end to engage the threads on the shaft and arranged to run off the said threads onto said reduced part of the shaft at the limit of movementin one direction, and a'spring adapted to\ press against vsaid tube to reengage the threads when the shaftis reversed."-

In testimony whereof, Icafiix my signature in presence of two'witne'sses' WILLIAM HISTRATTON.

Witnesses:

H. G. BA'IOHELOR, E. J a BOILEAU.

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