US1858305A

US1858305A - Press cylinder

Info

Publication number: US1858305A
Application number: US285319A
Authority: US
Inventors: Charles A Meisel; John P E Neilson
Original assignee: MEISEL PRESS Manufacturing Co
Current assignee: MEISEL PRESS Manufacturing Co
Priority date: 1928-06-14
Filing date: 1928-06-14
Publication date: 1932-05-17
Anticipated expiration: 1949-05-17

Description

May 17, 1932. c. A. MElSEL ET AL PRESS CYLINDER Filed June 14. 1928 71s: M613 3, REJVe ilson,

mm w Patented May 17, 1932 UNITED STATES PATENT OFFICE CHARLES A. MEIBEL, OI MILTON, AND JOHN P. E. NEH-SON. QUINCY, MASSACHU- SETTS, ABB'IGNORS '10 MEISEL PRESS MANUFACTURING COMPANY, 01! BOSTON,

MASSACHUSETTS, A CORPORATION 01 MASSACHUSETTS mass onmnnn Application filled June 14,

This invention relates to printing press cylinders and in particular to the construe- .tion of such a cylinder wherein means are rovided for securing a covering thereon. hile not limited thereto, the construction finds a particular application to the securing of zinc plates for use in onset presses, and by way of specific example there will be de scribed herein 'a construction, adapted for such purpose as illustrated in the accompanying drawings, wherein:

ig. 1 is a side elevation of the cylinder;

Fig. 2 is a section on the line 22 of Fig. 1;

Fig. 3 is a similar section showing the parts in another position; and

Fig. 4 is-a partial end elevation of thecylinder as seen from the left of Fig. 1.

In these drawings there is shown a cylinder having at its ends bearers 5 of customary construction and about which is a plied the zinc plate 7. The body of the cylinder ma be provided with a recess 9 (see Fig. 2)

do ning at one side thereof the edge 11 over which one end of the zinc plate or other covering may be secured. Herein a reel rod 13 is received in the recess under this edge and is provided with a di onally disposed slot to receive the hooked ii e 15 of the plate 11. The reel rod 13 maybe turned to tension the plate by means of the squared ends 17 thereof to which a wrench may be. applied, and

the tension is maintained by means of the ratchets, 19 on the ends of the rod cooperating (see Fig. 4) with pawls 21. In opposltion to the edge adjacent thereto lies the end. or edge 28 of a peripheral segment 25, the surface of which segment in one osition of the parts, that of F gs. 1 and 2, orms a continuation of the mam cylindrical surface of the cylinder. In this position the segment 25, as shown in Fig. 2, substantially fills the top of the redoes 9 with the opposite end thereof presented to the opposite wall of such recess. Such wall is herein shown as diagonally undercut at 27 and the end of the segment shaped to fit thereagainst from below, the-surface of the cylinder extending substantially I111 broken from the main portion thereof across the joint at 27 to the surface of segment 25.

'11 and closely 1928. Serial No. 885,319.

The segment 25 is mounted in such manner that it may be readily moved to rmit an end of the covering to be applie over the end 23 thereof and to bring 1t definitely into a position wherein its surface ali ns with the .rest of the cylinder and said go 23 is fixedly located. For this purpose pivotal bearings 29 may be provided 1n the recess adapted to recelve similar bearings on the embodiment of the invention shown the' overhanging wall 27 of therecess forms a stop for the tail of the segment, and a stop 37 may be provided on the opposite side of the center, the segment when in position against these stops as shown in Fig. 2 aligning with its surface a continuation of the cylindrical surface of the cylinder.

lihe segment may swing clockwise away from these stops to the position of Fig. 3, the

tail portionthereof enterin the recess 9 and the edge 23 movin outwar y and clockwise to expose the un er surface thereof in the manner shown in Fi 8. In this position the hooked end of p ate 7 may be engaged over the same and secured as by means of the clamping bar 89 and screws 41, orconversely a covering already secured about the c linder may be removed. Definitel to posit on the segment as in F' 2 suitab emeans may be provided underlying the tail ortion thereof and forcing the same outwar y to a definite position, herein against the stops provided at 27 and 37, and forthis purpose there is herein utilized a longitudinally shiftable bar 43 received in a slot 45 opening to the recess 9. The bar43 has a retracted position in which it is received in the slot, as shown in Fig. 3, permitting the tail of the segment to swmg in the manner there illustrated, and it may be forced outwardly into the recess to ma re contact with the tail of the segment to support it in the manner shown in Fig. 2. For forcing the bar laterally it may be provided (see Fig.1) with suitable notches 47 having diagonal faces 49 adapted to coo erate with diagonal faces 51 of teeth 53 w ich are herein shown as formed on a separate bar 55 housed in the bottom of slot 45.

With the parts in the osition of Figs. 1 and 2, if the bar 43 is shi ted lon itudinally of the cylinder, to the right in ig. 1, the notches 47 receive the teeth 51 permitting the bar to drop inwardly to the position of Fig. 3. On return movement the diagonal surfaces 49 and 51 press the bar outwardly a definite amount to the position of Fi s. 1 and 2 and it moves the segment 25 with w ich it engages to a'fixed and definite osition. The teeth 53 are preferably provi ed on a separate bar 55 as shown, as this readily permits such bar to beshimmed up to compensate the wear of the parts.

Suitable means are provided at the end of the cylinder for longitudinally shifting the bar 43 and herein the projecting end of the latter is shown as provided with rackteeth' adapted torun on a pinion 57 turnin in

bearings

59 and 61 at one end face 0 the cylinder. The shaft of pinion 57 may be provided with a square portion 63 (Fig. 4) by which it may be turned and to clamp the bar in adjusted position one of the bearin s, as 61, may be split and provided with a 0 am ing screw 65 by means of which the shaft of the pinion may be secured against rotation.

To applya covering to the cylinder as described, the segment ma be brought to the position of Fig. 3 by shifting the bar 43 to the right from the position of Fig. 1. One end 0 the late 7 is hooked into the slot in the reel to 13. The opposite end may be easily engaged over the outwardl pro ecting edge 23 of the, segment and c amped in position by the clanaping bar 39. The segment is then swung own b hand to its approximate position and the her 43 forced out thereagainst to the position of Fig. 2 and by such action not only is the surface of the se ment brought accurately into alignment the main cylindrical surface but the edge 23 is brought to a perfectly definite position. Thus in the case of the zinc plate the head of the typographical matter is accurately and defimtely positioned. Any slackness such as might be caused b a stretching of the plate ma be taken up y ad'ustment of the reel r0 13. It will be note from Figs. 2 and 3 that the plate extends from the edge 11 to the reel rod at an obtuse angle without such a sharp crimp as would be formed if it were drawn directly inwardly or hooked rearwardly over the overhanging edge, which crimp would prevent regaining or prohibit such tensioning as described while, in the closed position of the parts, the reel rod is overhung y the projecting portion of the segment defining edge 23. he surface of the cylinder is substantially unbroken except for the gap to the foregoing description to indicate the scope of the invention.

We claim:

1. A cylinder of the class described having a recess defining an edge, said cylinder including a. peripheral segment pivotally mounted between its ends and having at one end an edge over which a covering may be secured presented in closeop osition to said edge of the recess and at its ot er end formed to cooperate with the adjacent surface of the cylinderto provide a substantially continuous cylindrical support for such covering, and releasable means underlyin said other end and acting directly thereon or forcing it outwardly into position with thesurface of said segment lyin at the surface of the cylinder.

2. A cylin er of the class described havinga recess defining an edge, said cylinder including a pivotally mounted peripheral segment having at one end an edge over which a covering may be'secured presented in close opposition to said edge and at its other end formed to coo erate with the adjacent surface of the cylinder to provide a substantially continuous cylindrical support for such covering, and releasable means underlying said other end for forcing 'it outwardly into position with the surface of said segment lymg at the surface of the c linder, said means comprising a longitudinal shiftable bar opposing said end and cam means cooperating with said bar to effect lateral displacement on longitudinal movement thereof.

3. A cylinder-of the class described having. a recess defini-n an edge, said cylinder including a perip eral segment pivotally mounted between its ends and having at one end an edge over which acovering may be secured resented in close opposition to said throw effective to force said other end out-' ward into such position that the surface of saldsegment lies at the surface of the cylin- 4. A cfylinder having a portion of its periphery ormed as a rockingl mounted segment, said cylinder having asl ot opposing an end of the segment, a bar received in said slot having an end ex osed at the end of the cylinder provided wit rack teeth a pinion cooperating with said teeth, an means for effecting lateral movement of said bar on longitudinal shifting thereof to bring it into and out of engagement with said as ent.

5. A cylinder having a portlon of its periphery formed as a rockingly mounted segment, said cylinder having a slot 0 enin an end of the segment a bar received in sai slot, a member received in the slot and underlying therbar, said member and bar having cooperating surfaoes'to efi'ect lateral mov ment of said bar on longitudinal shifting thereof to bring it into and out of engagement with said segment.

6. A cylinder of the class described having a portion of its periphery formed as a segment, a rocking bearing for the segment between the ends hereof, said cylinder having a recess to receive the tail of said segment to permit the leading edge thereof to be swun outwardl beyond the surface of the cylinder, a mem er adapted to be projected into said recess to engage the tail of said segment, said member in retracted osition pernitting said tail to move into tIi e recess and 1n projected position supporting said segment in aligning position m the cylindrical surface,

7. A cylinder of the class described having axportion of its peripher formed as a segment, a rocking bear-mg or the segment between the ends thereof, said cylinder having a recess to receive the tail of said segment to permit the leading edge thereof to be swung outwardly beyond the surface of the cylinder,

, a slot intersecting said recess, a bar reciprocable in the slo and means cooperating with the bar to pro ect it intothe recess on longi tudinal movement thereof and into engagement with the tail of said segment to an port the segment in aligning position in the cylindrical surface.

8. A cylinder having a recess defining at one side an edge over whichacoveringinay extend, extend, a reel rod in the recess to engage the covering, a bearing in the recess, a segment pivoting on the bearing, having one end 'resented inone position of the se ent in c ose opposition to said edge and havm means for securinga covering over said on the other end of said segment when in said osition being presented to theo posite we .of the recess in such manner t at the surface of the segment is a continuation of the surface of the cylinder, and a releasable means adjacent said atter edge of the cylinder for swinging it to said Iposition.

9. i cy mder having a recess defining at one slde an edge over which a covering may extend, a reel rod in the recess to engage the covering, a bearing in the recess, a se ent pivoting on the bearing, having one on resented in one position of the se ment in ose opposition to said edge and aving means for securin a. covering over said end, the other end 0 said se ment when in said osition being presents to the opposite wa l of the recess in such manner that the surface of the segment is a continuation of the surface of the cylinder, and a releasable means adjacent. said latter edge of the cylinder for swinging it to said position comprising a r. p 10 A printing cylinder having a longitudinal recess, bearings within said recess, a

segment adapted to occupy said recess and having an edge fittin one ed of the recess and presentin ane go in c ose 0 position to the other e e of the recess, said segment having circular arings resting on the bearings of the cylinder whereby 1t may swing as a lever of the first class, means to retain said segment in position, and releasable means underlying the first said edge of the se ant to force it outwardly, said cylinder an segment having cooperating stop surfaces.

' 11. A prlnting cylinder having a longitudinal recess, hearings within said recess, a segment ada ted to occupy said recess and having an e ge fittingbeneath one ed e of the recess to provide a continuous cylin ricalL surface and presenting an ed in close 0 position to the other edge of e recess, said segment havin circular bearings resting on the bearings o the cylinder whereby it may swing as a lever of the first class, means to retain said-segment in position, and releasable means underlying the first said edge of the segment to force it outwardly, the engagement of the first edge of the segment with theadj acent edge of the recess providing a stop surface,

' 12. A printing cylinder having a longitudinal recess, means in the recess forsecuring the end of a plate to extend therefrom over an edge of the recess at an obtuse angle, a segment pivoted between its ends in said recess and having an end overhanging said securing means and presenting its edge in close opposition to the edge ofthe recess cylinder for the segment and releasable 4 1,ees,soe

means for forcing said segment against the sto 1%. A printing cylinder having a longitudinal recess, means in the-recess for securing the end of a plate to extend therefrom over an edge of the recess at an obtuse angle, hearings in said recess, a se ent havin (:0- operating hearings to provide a pivot :1 out which said segment ma swing and havin an end overhanging sai securing means an presenting its e ge in close opposition to the edge of the recess above mentioned, the other said end of the segment mating with the other edge of the recess to provide a continuation of the cylindrical surface; means for securing the end of a plate over the said edge of the segment and means for operating the segment about its bearing to force it into alignment with the cylinder.

In testimony whereof, we have signed our names to this s ecification.

HARLES A. MEISEL. JOHN P. E. NEILSON.

- (Seal) dtnrmcm or CORRECTION;

Patent No. 1,858,305. May 17, 1932.

CHARLES A. MEISEL ET AL.

It is hereby certified that error appears in the printed specification of the above numbered patent requiring correction as follows: Page 3, line 18, claim 5, for "opening" read opposing; same page, line 56, claim 8, strike out the words and some "extend, and that the said Letters Patent should he read with these corrections therein that the same may conform to the record-of the case in the Patent Office.

Signed and sealed this 5th day of July, A. D. 1932.

v M. J. Moore,

Acting Commissioner of Patents.

4 1,ees,soe