US2504502A

US2504502A - Printing press former

Info

Publication number: US2504502A
Application number: US606132A
Authority: US
Inventors: Curtis S Crafts
Original assignee: GOSS PRINTING PRESS CO Ltd
Current assignee: GOSS PRINTING PRESS Co; GOSS PRINTING PRESS CO Ltd
Priority date: 1945-07-20
Filing date: 1945-07-20
Publication date: 1950-04-18
Anticipated expiration: 1967-04-18

Description

April 18, 1950 c, s CRAFTS 2,504,502

PRINTING PRESS FORMER Filed July 20, 1945 2 Sheets-Sheet l April 1950 c. s. CRAFTS 2,504,502

PRINTING PRESS FORMER Filed July 20, 1945 2 Sheets-Sheet 2 1% Z L Z 1 v Patented Apr. 18, 1950 UNITE STATES PAT'EN T 0F FICEE.

PRINTINGZBRESS FORMER Curtis S. Grafts, Oak Park, I111, assignor to The- GossPrinting-Press Company, Chicago, IlL, a corporation of; Illinois Application. July 20, 1945,. Serial No. 606,132

'7 Claims.

The invention relates to folders 'forprinting presses and more-particularly to novel and useful mounting for the former which makes-the first or longitudinal fold in'the associated webs from a printing press.

Objects and advantages of the invention will be set forth in part hereinafter-and in part will be obvious herefrom,-or* may be learned by practice with the invention, the game being realized and attained by means of the instrumentalities and combinations pointed? out in the appended claims.

The invention consistsinthe novel parts, constructions, arrangements; combinations andimprovements herein shown and described.

Theaccompanyingdrawings, referred to hereinand constituting a part hereof, illustrate one embodiment: of the invention, and together with the description, serve toexplain the principles of the invention.

0f the drawings? Lisa sideelevation-With'parts insection of mechanism embodying 1 the invention;

Fig. 2 is a rear elevation of the same mechanism;

Eig'. Suisasecti'on taken on line-3-3-of Fig. 1; and

Fig. lis: a section takenon: line A -4 of Fig. 1;

Objects: oi :the. inventiomare to -provide an imprayed mountingforthe web folding former; said improvements. relatingspecifically to means: for varying. the angular settingof theiormer for productsofi differentthicknesses. by slightly raising andwloweringcthe. former nose. about: an axis near the. top-.of, the. former; said. variations in former. inclinationbeing. efiected. without substantial. change-in the. relation between the top ing angles and distances with the maximum of ease andthe minimum of binding. or constriction. The improved construction of the invention also facilitates-ease of assembly of the former and its mounting.

Broadly described, the invention provides a pivotal mounting 1 for theformer adjacent its upper edge, so that angular movement may be imparted'to the lower tip of the former about This pivotal mounting is exceedingly simple-"in construction comprising merely a hinge on a" shaft; the axis of the hinge beinglocatedto therear and slightl-ybelow"the-level of the-axis of theupper' roller, so that the through the axes of saidhinge and rollerintersects the projected plane of the face of'the'former" at the surface of the roller; that isthe' projected plane-of the former-is-tangent tothe surfaceof the roller substantiallyat' the-line of intersection of said axis-connectingplane.

and theupper edge of the former. Relatively simple means are-provided for imparting the angular adjusting -movement-to the-tip of the former. Means are-- also provided for adjusting the former upand down in itsown plane without disturbing the other elements of the mounting.

It will be understood that theforegoinggeneral description and the following detailed description as well are exemplary and explanatory/but:

are not restrictive-of the invention.

Referring now in detail to the present pre ferred embodiment of the invention, illustrated bywaycfexample in the accompanying drawings, the former l0 and its associated parts are.

mounted on and supportedfr'om a main bracket il whic'h is-triangularin"side' elevation and" rec tanguiar in plan, Atits upper edge, a cleat F2" i bolted so that its flange overlies and is. guided by the projecting lip 13 of the upper folder crcss'-' brace M".

The former I0 comprises a triangular. plate o1. generally conventional form, having a downwardly tapered and. angled nose 2t and horizontal upper edge or, base 2! from which pro-' jects a tapered, edge-forming blade 22. Said; form r plate is mounted, by means hereafter described "in detail, upon a former-supporting bracket25. Said bracliet'is of open triangular. construction and designed to lie behind-the'foriner i9 and for the most'part in a plane parallelv therewith;

In accordance with the invention means. are provided for supporting the former bracket- 25. for" hinged movement about a horizontal axis at the upper end of said bracket. For this purpose. the bracket 25; is provided with rearwardly and upwardlyicurved yoke armsv 25' which. at their endsare provided with bushings 21' journaled plane passing Thiscon structicnpermits angular adjustment" of the" former tip without substantially changing the" spatialrelation between the surface of theroller about either end of horizontally-disposed shaft 28. Said shaft is supported in brackets 29 formed along the top of the main bracket H. The former-supporting bracket is thus free to turn about fixed shaft 28. The upper web guide roller 30, which lies parallel with and almost in contact with the upper edge of the blade 22, is thus positioned between the shaft 28 and the blade 22. In accordance with the invention, it is desirable that the edge of blade 22 be maintained in said close spatial relation to the periphery of the roller 35 throughout any angular movement which may be imparted to the former for adjustments of the nose end 20 thereof. Bearing in mind that the upper edge of blade 22 of the former will travel in a circular are A described about the axis of shaft 28 as a center, the positioning of said shaft and the center of roller 36 is such that the center line of shaft 28 preferably lies on a line parallel to the center line of roller 39 and in or substantially near to a plane B passing through said center lines of roller 30 and the line of tangency of the former face It on the opposite peripheral surface of the roller til. possible to maintain relatively the same clearance between the surface of the roller and the edge of blade 22 at the top of the former throughout all adjustments made at the nose 20 to compensate for various thicknesses of prod- 3 note run over the former.

Referring now to the mounting of the former on the supporting parallel bracket 25, means are provided for adjusting the former up and down within the inclined plane in which it is normally held. For this purpose the upper part of the rear face of the former is provided with two parallel spaced apart keys 36 projecting therefrom and disposed to ride in suitable ways provided in the adjacent face of the bracket 25. Similarly key 3? is provided centrally of the former near the lower portion thereof to fit within keyway slot 39 in the bracket 25. Two sets of locking screws 35 in the upper portion of the former and locking screws 38 near the lower portion. are provided for fastening the bracket to the former when the desired longitudinal positioning thereof has been attained by movement of the former with respect to the bracket. By loosening the

screws

38 and 35, the former may be slid up and down on the bracket 25 to provide the desired clearance of the blade 22 with respect to the roller 36. This up-and-down adjusting movement is preferably effected by screw 46 threaded into the keyway supporting structure.

The invention provides means for imparting angular movement to the nose end of the former 29 for the purpose described. This means comprises a rod 53, one end of which is pivotally connected by cross-shaft 5| to the bottom of the bracket 25. The rod extends rearwardly from said pivotal connection to a pivotal support on the bracket ii adjacent the rear face thereof, said support being formed on a cross-shaft 55 which is journaled in brackets 5'0 extending rearwardly from said bracket H. The shaft 55 is provided with an enlarged central portion 52 which houses a transversely-disposed sleeve 51 surrounding rod 50, the inner end of which sleeve is tightened against shaft 55 by a threaded portion 58 and nut 59. The outer end of said sleeve 51 is enlarged and internally threaded at 60 to engage the threads 51 formed on the outer end portion of the rod 58. A hand-wheel 62 is pro- By virtue of this construction it is vided for turning said sleeve, thereby to effect axial movement of the rod 56 to adjust the position of the nose of the former 20 as will be clear. Stationary stop pin 65 is set to project from the rear face of housing 52, while cooperating stop pin 65 projects inwardly from the forward face of sleeve 72, said pins being preferably provided to prevent more than a full revolution on the part of the hand-Wheel 62, thus providing for complete adjustment in either direction from the zero or normal angle position of the former by a half turn of the handwheel in either direction. An indicator pointer 'Iil may be formed on the shaft 55, cooperating with a marked dial TI on the flange of the sleeve I2, fixed to the sleeve 5'! by set screw 63.

The invention in its broader aspects is not limited to the specific mechanisms shown and described but departures may be made therefrom within the scope of the accompanying claims Without departing from the principles of the invention and without sacrificing its chief advantages.

What is claimed is:

1. A mounting for a printing press former, including in combination, a triangular former plate mounted in an inclined plane, a horizontal roller adjacent the upper edge of said plate, a bracket for supporting-said plate in said plane, the bracket being mounted for angular movement about a horizontal axis, and means for varying the positions of the former plate with respect to said bracket in said inclined plane.

2. A mounting for a printing press former, including in combination, a triangular former plate mounted in an inclined plane, a horizontal roller adjacent the upper edge of said plate, a bracket for supporting said plate in said plane, the bracket being mounted for angular movement about a horizontal axis, means for varying the positions of the former plate with respect to said bracket in said inclined plane, and means for varying the inclination of the plate and bracket about said axis.

3. A mounting for a printing press former, in-. cluding in combination, a triangular former plate mounted in an inclined plane, a horizontal roller adjacent the upper edge of said plate, a bracket for supporting said plate in said plane, the bracket being mounted for angular movement about a horizontal axis, said axis being behind the roller and above the bottom thereof, and means for varying the positions of the former plate with respect to said bracket in said inclined plane.

4. A mounting for a printing press former, including in combination, a triangular former plate mounted in an inclined plane, a horizontal roller adjacent the upper edge of said plate, a bracket for supporting said plate in said plane, and means for varying the positions of the former plate with respect to said bracket in said inclined plane.

5. A mounting for a printing press former, including in combination, a triangular former, a roller adjacent the top edge of said former and a bracket supporting the former for pivotal motion about an axis parallel to that of said roller, the center line of the roller being between the upper edge of the former and said pivotal axis, and means for moving the former in its plane of inclination toward and away from said roller.

6. A mounting for a printing press form'enincluding in combination, a triangular former plate mounted in an inclined plane with its apex lowermost, a support for so mountingsaid plate and means for moving the former up ,apd d its plane of inclination on said support.

'7. A mounting for a printix g'j'pr'e ormer, including in combination, a t fii'mguia ormer plate mounted in mi inclined p l'sl n "its apex 10wermost, a. support for r s U r up and down in its plane of inclip it non said support, and means for varying" 11d plane of incli gigion of the former.

t CURTIS s. CRAFTS. g FenENoEs on'ED n t ing said plate Number Number