US1897641A

US1897641A - Adjustable feed table for envelope-making and like machines

Info

Publication number: US1897641A
Application number: US541195A
Authority: US
Inventors: Charles F Pflanze
Original assignee: Individual
Current assignee: Individual
Priority date: 1931-06-01
Filing date: 1931-06-01
Publication date: 1933-02-14
Anticipated expiration: 1950-02-14

Description

Feb. 14, 1933. PFLANZE 1,897,641

ADJUSTABLE FEED TABLE FOR ENVELOPE MAKING AND LIKE MACHINES Filed June 1, 1931 2 Sheets-Sheet 1 M ME/v70)? (YEP/"1 A/VZE 55 ATTORNEY Feb. 14, 1933. c. F. PFLANZE ADJUSTABLE FEED TABLE FOR ENVELOPE MAKING AND LIKE MACHINES Fi led June 1, 1931 2 Sheets-Sheet 2 Patented Feb. 14, 1933 I I UNITED STATES PATENT OFFICE- CHAIRLES F. PFLANZE, OF WEBSTER GROVES,'MISSOURI ADJUSTABLE FEED TABLE FOR ENVELOPEFMAKING AND LIKE MACHINES.

Application filed June 1, 1931. Serial No. 541,195.

This invention relates generally to enfeed rolls B and G deliver the sheets of mate-. velope-making and like machines, and more rial being fed to the machine to an inclined specifically to adjustable feedtables for maelement D which aids in delivering said sheets chines of this type, the predominant object of of material to the mechanism of the machine.

the invention being to provide a feed table Referring now to the improved feeding which is adjustable so as to'receive and feed table, which is designated generally by the envelope blanks, or other sheets of material, reference character F, 1 designates a'pliate of different sizes, and-to so construct and arprovided adjacent to its upper end with a range the feed table that the adjustments cut-out portion '2; that is to say, at the oppo 10 thereof are made relative to the longitudinal site sides of its upper end portion the platel center line of the feed table. is provided with bar portions 3, and at their In the case of envelope-making machines outer ends these bar portions are provided and like machines, it is essentialthat the on with integrally formed, inwardly extended velope blanks, or other sheets of material bebar portions 4. The bar portions 4 terminate ing fed into the machines, move along a preshort of each other at their inner ends, as determined path which coincides with the shown in Fig. 1, and a'bar'5, which'is secured center line of the feed table. In other words, at its opposite end portions to the opposed bar for the machines to function properly the portions 4, joins said bar portions 4together.

center lines of the sheets of material being The plate 1 at its rearward end is provided 99 fed must coincide with the center, lines of with downwardly extended

lugs

6, and 7 the feed tables, and during passage through designates a rod which is extended through the machines must follow along a path which apertures in'said lugs. The rod 7 is extended is a continuation of such center lines. This transversely of the feed table, and is rot-atcoincidence of the center lines of the sheets ably supported by the opposed frame mem- 25 of material being fed, isobtained in the use bers A' of the machine with which the feed ofa feedtable constructed in accordance with table is associated, and at one of its ends said this invention by making all adjustments of rod-has'fixed thereto an operating element 8 said feed table relative to a fixed center .line provided with a knurled circumferential face thereof, and therefore the making of. the (Fig. 1). The forward portion of the feedadjustments referred to does not disturb the table issupported'by portions F at the oppoabsolute coincidence of center lines of the site sides thereof which overlap the frame feed table and the-sheets of material being members A, adjusting screws F being profed. vided for regulating the elevation of said Fig. 1 is a, plan view of a. feed table conforward portion of said feed table.

structed iii-accordance with this invention. Arranged adjacent to the opposite side Fig. 2 is a section on line 2-2 of'Fig. 1. edges of the plate 1 is a pair of bars 9 which Fig. 3 is a fragmentary section on line 33 slidingly contact with the top face of said; of Fig. 1. plate. Each of the bars 9 is provided with Fig. 4 is an end elevation of the structure an elongatedopening 10 through which a bolt illustrated in Figs. '1 and 2 viewed as indi- 11 or other suitable headed fastening device cated by the line-44 in Fig.2, and with par-ts is extended, said fastening device being prothereof broken away toconserve space. vided with a nut which is screwed on the In the drawings, wherein is shown for the lower end portion thereof, a The bars 9 are purpose of illustration, merely, one embodiconnected together at their rearward ends by I 5 ment of the invention, A designates frame a connecting element 12 to which said baits" members of a machine, such, for instance, as '9 are secured, and at their opposite ends an envelope-making machine, said machineA said bars are provided with inwardly exincludin-g-a pair of feed rolls B and 'C by tended portions 13. 14 designates guide which material in sheet form is fed to'the members which are adjustably secured .to mechanism (not shown)--of the machine. The the portions. 13 of the bars '9. These guide members 14 are each provided with a slot 15, and 16 designates abolt or other suitable fastening device which passes through said slot and through an aperture formed through the portion 18 of the associated bar 9. The guiding members 14 are each provided with a guiding extension 14 which serves a purpose to be hereinafter referred to.

Pivotally secured to the connecting element 12 at the points designated by the reference character 17 is a pair of guiding members 18. These guiding members are provided at their forward ends with guiding extensions 18 similar to the guiding extensions 14 associated with the guiding members 14, and associated with each of said guiding members 18 is a follower 19. The followers 19 are each secured to the associated guiding members by a swivel connection 20, and each of said followers is provided with a screw-threaded opening formed therethrough.

Fixedly secured to the element 12 at its approximate center is a bearing 21, said hearing including an upstanding portion-22 in which a seat 23, which is open at the top, is formed (Fig. 2). The bearing 21 supports an adjusting screw 24, said adjusting screw being provided with a smooth portion 25 at its approximate center which is disposed in the seat 23 of the bearing 21. The smooth portion 25 of the adjusting screw 24 is interposed between a pair of enlarged collar portions 26 which embrace the portion 22 of the bearing 21, and the

opposite ends

27 and 28 of said adjusting screw, which extend through the followers 19, are provided respectively with right-hand and left-hand screw-threads. 29 designates an enlarged operating head at one end of said adjusting screw.

The lower face of each of the bars 9 is provided with teeth which provide a rack 30, and fixedly mounted on the rod 7 adjacentto the opposite ends thereof are pinions 31. The teeth of the pinions 31 mesh with the teeth of the racks 30, whereby rotation of the rod 7 will result in longitudinal movement of bars 9. Fixed to the top face of the plate 1 is a pair of guiding elements 32 which contact with the outer edges of the bars 19) so as to aid in guiding the movement of said ars.

The feed rolls B and C already referred to are supported for rotary movement by shafts B and C which are journaled in the frame members A of the machine with which the feed table is associated, and located adjacent to said feed rolls is a suction tube 33 of the type common to paper feeding mechanisms. The suction tube 33 has mechanism associated with it (not shown) which operates to swing the extended portion 33 thereof in an arc of a circle to the position indicated by. dotted lines in Fig. 2, and to permit such movement the feed rolls B and C are each arranged in two parts with a space between the inner ends of the sections of each roll. These spaces between the sections of the rolls B and C are shown clearly in Figs. 1 and 4, wherein said spaces are designated by the reference character S. Also the feed rolls B and C are ofsegmental formation, each of the sections of said rolls comprising an arcuate wall as shown in Fig. 2. Located immediately above the feed roll B and secured to the bar 5 already referred to is a support 85 for the sheets of material being fed, said support preferably comprising an elegge nt provided with a pair of spaced fingers In theoperation of the machine with which my improved feed table is associated, a stack of envelope blanks or other sheets of material is arranged on the feed table, as indicated in-Figs. 1 and 2, the guiding

extensions

14 and 18' of the guiding

members

14 and 18 being positioned, asshown in Fig. 1, so that said stackof material is maintained in its proper position on the feed table and with the longitudinal center line of the stack of material in exact coincidence with the longitudinal center line of the feed table. The machine is then placed in operation and the suction tube 33 draws the forward portion of the lowermost blank or sheet of material downwardly when the extension 33 of said suction tube swings downwardly in an arc of a circle, the forward edge portion of the stack of blanks being supported by the support 35. The feed rolls Band C are so timed that as the forward portion of the lowermost blank or sheet of material is drawn downwardly as described, the rotating arcuate walls of said feed rolls will grasp said forward portion of said blank or sheet of material and feed it forwardly along the inclined element D to the mechanism of the machine.

When it is desired to adjust the

gu ding members

14 and 18 so as to provide for the feeding of blanks, or other sheets of material, of a different size, the fastening devices 11 are released and the rod 7 is rotated by manipulating the knurled element 8 associated therewith. This results in the bars 9 being moved longitudinally of their axes with respect to the plate 1, and because the guiding

members

14 and 18 are movable with said bars, said guiding members are subjected to like adjustment. The adjusting screw 24 may then be rotated by manipulation of the knurled head 29 associated therewith, and as a result of such rotation of said adjusting screw 24 the outer end portions of the guiding members 18 are moved in an arc of a circle toward or away from the center line of the feed table, depending on the direction of rotation of the adjusting screw 24. Also, if necessary, the guiding members 14 may be adjusted by releasing the fastening devices ageov eai 16 and shifting the guiding members to the desired position.

It is seen, therefore, that the guiding members of the feed table may be subjected to complete adjustment, and as such adjustments are made with respect to the center line of the feed table, proper positioning of the stack of blanks or other sheets of material being fed is always attained.

I claim:

1. A feed table including a support for a stack of material being fed, a plurality of guiding members for maintaining the position of said stack of material on said support, means for adjusting said guiding members longitudinally with respect to said support, and a common means for simultaneously adjusting a plurality of said guiding members transversely of said support in opposite directions.

2. A feed table including a support for a stack of material being fed, a plurality of guiding members for maintaining the position or said stack of material on said support, means including a rack bar and pinion for adjusting said guiding members longi-' tudinally with respect to said support, and a common means for simultaneously adjusting a plurality of said guiding members transversely of said support in opposite directions.

A. feed table including a support for a stack of material being fed, a plurality of guiding members for maintaining the position of said stack of material on said support, means for adjusting said guiding members longitudinally with respect to said support, a pair of said guiding members being arranged for pivotal movement, and a common means for simultaneously adjusting said pivoted guiding members transversely of said support in opposite directions.

4. A feed table including a support for a stack of material being fed, a plurality of guiding members for maintaining the position of said stack of material on said support, means for adjusting said guiding members longitudinally with respect to said support, a pair of said guiding members being arranged for pivotal movement, and a common means including an adjusting screw for simultaneously adjusting said pivoted guiding members transversely of said support in opposite directions.

5. A feed table including a support for a stack of material being fed, a plurality of guiding members for maintaining the position of said stack of material on said support, means for adjusting said guiding members longitudinally with respect to said support,

a pair of said guiding members being arranged tor pivotal movement, and a common means for simultaneously adjusting said pivoted guiding members transversely of said support in opposite directions, the last-menztioned :means including an adjusting screw having portions provided with -ri'ght-hand I .and lett-zhand screw-threadawand 'iollower-s associated with said pivoted guiding mem- ':-bers through whiclrthe screw-threaded poritionseofsaid adjusting screwapass.

16. A. feed table including a support for 1a stack of material 'being fed, .a plurality of guiding members for maintaining :the positionrof said stack ofmaterial onsaid support, ssa'id guidingmembers including a plurality of independently adjustable guiding -.mem- :bers andra'pair oi":guidingmembers.arranged 'tor :pivotal" movement, means for adjusting said guiding members ilongitudinally with u'espee tto said support, and a common'means -for simultaneously :adjustingsaid pivoted ggu iding members transversely of said support in opposite directions.

7. A feed table including a support :for a stack of zmaterial being fed, a pluralitypf guidin members for maintaining thepbsition: of said stack of material on said support, said guiding membersxincluding a plurality of independently adjustable :guiding mem bers and. a'pair of: guidingmembersarranged 'for pivotal 'movement,. means for adjusting said guiding memberslongitudinally with respect to said support, and a common means including an adjusting :screw for simultaneorsly adjusting said pivoted guidingmemfibers transversely ofsaid support;

38. Aefeed table including a support tor-a stacker" material being .fed, aplurality of guiding members for .maintaining :the positionwof said stack 0)? material on said support, saidguiding members including a plu' portions of said adjusting screw pass.

9. A feed table including a support for a stack of material being fed, a plurality of guiding members for maintaining the position of said stack of material on said support, said guiding members including a plurality of independently adjustable guiding members and a pair of guiding members arranged for pivotal movement, means including a rack and pinion for adjusting said guiding members longitudinally with respect to said support, and means for simultaneously adj usting said pivoted guiding members transversely of said support, the last-mentioned means including an adjusting screw having I portions provided with right-hand and lefthand screw-threads, and followers associated with said pivoted guiding members through which the screw-threaded portions of said adjusting screw pass.

10. A feed table including a support for a stack of material being fed, a plurality of guiding members for maintaining the position of the stack of material on said support, said guiding members including a plurality of independently adjustable guiding members and a pair of guiding members arranged for pivotal movement, means for adjusting said guiding members longitudinally with respect to said support, locking means for locking said guiding members in positions longitudinally of the support to which they have been adjusted, and means for simultaneously adjusting said pivoted guiding members transversely of said support.

11'. A feed table including a support for a stack of material being fed, a plurality of guiding members for maintaining the position of the stack of material on said support, said guiding members including a plurality of independently adjustable guiding members and a pair of guiding members arranged for pivotal movement, clamping means for locking said independently adjustable guiding members against independent adjustment, means for adjusting said guiding members longitudinally with respect to said support, locking means for locking said guiding members in positions longitudinally of the support to which they have been adjusted, and a common means for simultaneously adjusting said pivoted guiding members transversely of said support.

In testimony that I claim the foregoing I hereunto aifix my signature.

CHARLES. F. PFLANZE.