US1154694A

US1154694A - Register-gages and grippers for job-presses.

Info

Publication number: US1154694A
Application number: US3317015A
Authority: US
Inventors: Casimiro Ferro
Original assignee: Individual
Current assignee: Individual
Priority date: 1915-06-09
Filing date: 1915-06-09
Publication date: 1915-09-28
Anticipated expiration: 1932-09-28

Description

c. FERROI REGISTER GAGES AND GRIPPERS FOR JOB PRESSES.

APPLICATION FILED JUNE 9. I9I5.

1,154,694. PatentedSept. 28, 1915.

CASIMIRO FERRO, F ANSONIA, CON1\TEGT1CUT.

REGISTER-@AGES AND GRIPPERS FOR JOBPRESSES.

Spcification of Letters Eatent.

Patented Sept. 2S, i915.

Application filed J une 9, 1915. Serial No. 33,170.

To all fir/0m t may concern e it known that I, CASIMIRO FERRO, a citizen of the United States, residing at Ansonia, county of New Haven, State of Connecticut, have invented an Improvement in `legister-(higes and Grippers for Job- Presses` of which the following is aspecification.v

This invention relates to printing presses and has for its object to provide an attachment for job presses comprising adjustable back and end gages and grippers, which shall be relatively inexpensive to produce, easy and quick to adjust, perfectly accurate and reliable in use, and which lwill entirely do away with the necessity for gage pins and the various shop devices for registering the sheets which are in common use and which are the cause of much loss ot' time.

lVith these and other objects in view, I have devised the novel attachment for presses which I will now describe, referring to the accompanying drawing forming a part ot' this specification and using reference characters to indicate the several parts.

F igure l is a plan view illustrating my novel invention in place upon the platen of a press; Fig. 2 a transverse section on the line 2 2 in Fig. l, looking in. the direction of the arrows: Fig. 3 an end elevation, the gripper being removed; Fig. 4f an elevation as seen from the bottom in Fig. 1; Fig. 5 a detail sectional view on an enlarged scale on the line 5-5 in Fig. l, looking in the direction of the. arrowsg'Fig. 6 a detail sectional view on an enlarged scale on the line 6 6 in F ig. l, looking in the direction of the arrows, and Fig. 7 is a perspective. view illustrating my' novel attachment in place upon a printing press.

10 denotes the platen of a press and ll the tympan which ordinarily consists of a number of plies of paper secured. in place upon the platen. Heretofore, so viar as I am aware, the grippers, so called, have been part of the 4press and the register gages used have been gage pins stuck'into the tympan or gages made of paper and secured to the tympan, the adjustmentoic which used up quite a little time each time the press was set up for a new job. The use of gage pins and similar devices is far from satisfactory on account of the expense, the loss of time and the fact that they are destructive to the tympan.

.the endgage li.

My novel attachment comprises essentially side bars l2, an adjustable back gage 13 which extends between the side bars and slides thereon, an adjustable and .extensible end .gage l-i which slides on the back gage, and adjustable and extensible grippers 15 which are carried by the back gage. rEhe side bars are shown as made in two parts for convenience in construction. rlhese bars are provided at their ends with depending lugs'l shown as carrying wing screws 17 by which the bars are secured to theplaten ot' a press.V

18 denotes sockets which receive the ends of retaining strips 19 by which the tympan is secured in place. The ends ot' the sheets ot' paper comprising the tympan are simply turned down over the edges of the platen and retained in place by pressing the strips down into the sockets. The sockets in the present instance are formed by recessing blocks 2O which are secured to the platen by screws.

The inner edges of the side bars are provided with longitudinal grooves 21 which receive laterally elongated tenons 22 at the ends of the back gage. The inner ends oit the'grooves are widened and the' tenons are provided with enlargen'ients 23 engaging the widened portions of the grooves, whereby the parts are held together. The lateral elongation of the tenons permitsthem to be inoved freely in the grooves and prevents any cramping or binding ol the back ga gc, which is locked in position al'ter adjustment by wing screwsi'll in said gage which engage the tympan, or the platen it' the latter is not wholly covered by the tympan.

The front 'face of the back gage is provided with a longituiflinal groove 25 which receives a laterally elongated tenon 26 on The inner end of this groove is widened and the lenen is provided with an enlargelmnt 2T engaging the widened portion oi the groove. and acting to retain the end gage in engagement with the back gage. rlfhe end gage i. shown as locked in position after.adjustment by m ans ot a wing screw Q8 carried by the end gage and engaging the back ln order that the end gage may extend to the :front ot the plateir, .when the press is p tively large sheets and the back gage vis setwell back, and at the same time will not be inconveniently long when the press is workworking on rela-4 ing on relatively small sheets and the back gage is set forward trom the back ot the pl'aten as in Iig. l, I make the end gage in two parts, which I will refer to as the end gage and the extension, the latter being indicated by 29. The end gage is provided with a dovetail rib and the extension with a corresponding tlovetail groove, which pe'rmits the extension to be moved backwa-rd and forward uponthe gage` the partsbeing fitted tightly enough so that the extension will remain in any position in which it may be placed. v

The back gage is provided in its top with an undercut longitudinal groove 31 in which blocks 32 are adapted to slide, the shape ot the grooves and blocks being such as to retain the latter in place.` The grippers v15 are hinged to these blocks. These grippers act,

as in ordinary presses, to strip the sheets from the type bed after an impression has been made.

'33 denotes springs, shown as coiled about, the pintles of the hinges and having arms bearing respectively against the under sides of the grippers and the top ofthe back gage, the action of which is to normally hold the grippers in a raised position, as in Figs. Q and so that the sheets may be placed in position on the tympan.

The grippers are provided on' their backs @with bow springs 34, one end ot' each spring being attached to the outer end ot a gripper andthe inner end being free and lying in contact with the grippertoward its lower end,'as clearly shown in Fig. -2. In Fig. l, the free ends of the bow springs are broken away. These springs bear against the bed of the press each time an impression is made and act to cushion the gripper-s. It will of course be understood that the impression is usually. much smaller than the sheets and that the grippers are adjusted so that the Abow springs will engage the bed of the press outside the type bed (not shown, as it forms no portion of the present invention) at each actuation of the press. In order that. the4 grippers may extend to the front ot the platen when the press is working on rela- 'tively large sheets and the back gage' is set -well back, and at the same time will not be inconveniently long when the press is working on small sheet-s and the back gage is set well forward from the back ot' the platen as in Fig. l, I make the grippers in two parts, which I will refer to as the grippers and the extensions, the latter being'indicated by Each grij'iper is provided with a dovetail rib 36 and the extension with la corresponding dovetail groove, which pernits the eX- tension to be moved backward and Jforward -on the gripper, the parts being fitted tightly enough so that the extension will remain in any position in which it .may be placed. The extensions of the gripper-s and the end gage drawing.

size of the sheets or the impression, the back gage is moved forward or backward as may be required and locked in placeby the wing screws, then the end gage and the grippers are moved to the right or left as. may be required, the end gage being locked in place by the wing screw, and then the extensions of the end gage and the grippers` are moved inward or outward as may be required. lViththese simple and easily made adjustments, the attachment is always ready for any job of work within the capacity of the press, without the use of gage pins or other devices and without loss of time in making temporary gages upon the tympan by the use of pieces of paper.

Having thus described my invention I l. A device ot' the character described comprising side bars adapted for attachmentdo a platen, a back gage adjustable on said bars, 'an extensible end gage adjustable .on the bac; gage, and means tor locking said gages in position after adjustment.

Q. A device of the character described-comprising side bars adapted Jor attachment to a platen, a back gage adjustable on said bars, an extensible end gage adjustable on the back gage, and extensible gripper-s adjustable on the back gage.

3. A device of the character described comprising side bars adapted for attachment to a platen, tympan retaining strips, blocks attached to the platen and having sockets for said strips, a back gage adjustable. on said bars, -an end gage adjustable on the back gage and adjustable grippers carried by the back gage.

4. A device ot the-character describ'edcomprising side bais adapted for` attachment to' a platen and provided with grooves widest at their inner ends.' a back gage having tenons with enlargements engaging said grooves and a groove in its front tacewidest grooves and a groove in its front t'ace widest at its inner end, and an extensible end gage having a tenon with an enlargement engaging the last mentioned groove.

at its inner end, an end gage having a tenoii position and bow springs on thel backs ofV said grippers which are attached at-one end 6. A device of the character described comprising side bars adapted-for attachment to a platen, a back gage adjustable on said bars and having an undercut longitudinal groove, blocks adapted to slide in said groove, grippers hinged to said blocksand springs for normally retaining said grippers in a raised position.

7. A device of the character described coma platen, a back gage adjustable on said bars and having an'undercut longitudinal groove,`

blocks adapted to Slide in said groove, grippers hinged to the blocks. an adjustable endgage carried by the back gage, springs for normally retaining the grippers in af raised only and are adapted to engage a press at each actuation thereof.

8. A device of the character described comprising side bars adapted for attachment to a` platen, a back gage'adjustable on said bars, an extensible end gage carried by the back gage, and eXtensible grippers also car-v ried by the back gage.

,9. A device of theeharacter described comprising side bars adapted for attachment to a platen, a baclrgage adjustable on -said bars, an end .gage and grippers carried by the back gage, saidI end gage and grippers being provided With dovetail ribs, and eX- tensions adapted to Slide onsaid ribs, for

`the purpose set forth;

In testimony whereof I aiix my signature.

CASIMIRO FERRO.