US1626352A - Feed table - Google Patents

Description

1,626,352 April 26, 1927. A OLSON l FEED TABLE Film: Abril :5, 1925 2 Sheets-Sheet 1- fal.

April 26 1927.

A. OLSON FEED TABLE Filed April 3l 1925 2 Shees-Shee Patented Alpi'. 26,1927.

UNITED STATES l 1,626,352 PATENT OFFICE.

ANDREW oLsoN, or fc1;.EV:eLAND,A c1110, AssIe'NoR To THE CLEVELAND FOLDING mAcnnm COMPANY, or CLEVELAND, omo, A oRronAIoN or 01110.-

FEED TABLE.

.Appncanan'med April s, 1925. swarm. 20,413.

This'invention relates to feed tables. for .feeding sheets: of paper to folding maclfnnesz =1')rinting presses, etc., and has yfor one of lts objects thev provision- .of means for pref Atif-venting. the sheet from skewing and for in vIn 'the present types of tables diiiculty is eX erieneed'in feeding an oblong sheet,

withits shorter sides arranged longitudinally of the table, due to the -drag of the side guide which causes one edge o f the sheet to lag l behind the other.'1Myv improvements overcome this difficulty by the provislonof side guiding means adapted to move with the sheet and thus eliminate the drag-that isY produced-by the commonly used fixed gu1de.

' Other objects ofthe lnvention -and the features of noveltywill be apparent from the following description taken 1n connec- Ytion with the accompanying drawings, of

which: l v

Figure 1 isa-plan view of a feed table "embodying my invention;

`Fig. 2 is a sideelevation thereof; Fig. 3 is a diagrammatic plan showlng the arrangement of the belt which acts as the side guide for thesheet; v Fig. 4 4is an enlargement of a ortion of Fig. 1, showin the take-up mec anism or'l tension device or the belt, and 'one ofthe ad'usting devices;

g. 6 is Aa sectionv on the line 64-6 of Figui; ig. 7 is an enlargement of a part of Fig...

1, showing the driving` means for the belt 'Fi 8 is aKsection-on the line 8--8. of

AFigfi) is a section on the'line 9--9of Fig.

and y Fi 10 is 'aper'SpeCtiVe view of a part of the me which carries the belt.

-Referring to the drawings indicates the frame of the feed table on which the sheets of pa e'r are to be advanced from the f eed-A in vro ers 21 to the take-olf rollers 22 and 22',

the latter rollers delivering the sheet tothe folding machine or printing press 'or other Afrom the shaft 29, the latter 1n bearings 30 Aand 31 and being driven from,

g. 5 is a section on the' line 5-75 of4 Fi1g. 4; 1

engages,

mechanism to which it is to be fed. I have illustrated a common 4form of mechanism for advancing the 'sheet on the feed table, this mechanism comprising a series of feed rollers 23, suitably journalled on the frame 20,w1th their aXes'in the same plane and arranged diagonally with respect to the longitudinal axis ofthe feed table or direc- I tion in which the sheet is advanced. This diagonal arrangement of the'feed rollers -23 has the`eti'ect of movingthe sheet toward the lower side of Fig. 1,- as Iwell' as .longitudinall'y of the table, the lateral movement of .thedsheet being for the purpose of properly laligning i t and presenting it to the'proper positionin the folding mechanism or pr1nt- 'ing press. The rollers 23 are driven by means of an endless belt-24`which frictionally-enga s withl the'rollers and 'is supportedby pu eys 25 and 26,'4 the latterbeing -a ,driving pulley and -being ,mounted on a shaft 27 which is driven. in any `suitable manner, as by means of the gir of gears 28,

v ing supported the shaft 32by meansof the gears 33. The

shaft 32'carries the take-ofi' roller 22 and a driving'pulley 34 on which runs a driving belt 35 which exte ds to'an of power. The t e-off rol er 22 is mounted on ashaft 36 vwhich is drivenv from the shaft 32 by the pair of spur gears 37, the shaft 36 bemg supported at its opposite ends in bearings 38 and 39.

e. spaces between the rollers 23 are closed by the plates 40 which aresecured,

at their opposite ends, tothe frame 20 and,

serve' .to revent the sheets from dropping between t ese'rollers.

It has been customary, heretofore, to provide feed tables, ofthe ty illustrated, with stationary side guides against which the edge suitable source of the sheet' is lcarried by the feed rollers 23 andthis ty e of lside guide has been generally sat'v actory for square lsheets or oblong sheets thatare fed with their longer edges extended longitudinally of the table.

'H owever, when itA lis I attempted to feed oblong 'sheets with their. shorter edges longi tudinally 'of the feed table, the drag of the of thesheet which it e this edgev lag behind i side guide ontheed e tends tomat the opposite edge of the sheet or, in other words, skew the sheet on the feed table so that 'it will not be properly positioned when 'les 'y it reaches' the take-off rollers .22 ,andv 22.

As before stated, it is an' object of this invention to overcome this diliiculty and this is accomplished by roviding amovable side uide vsuch as the elt 41. In the specific orm of the invention illustrated, this movable' side guiding mechanism comprises a grooved baror frame 42 in which one side ofthe belt 41 is arranged. The, bar 42 is supported on -a pair of brackets 43 and 44 l49, this rod being-adjustably supported in the frame 2O and secured by a set screw 50 (see Fig. 6). The screws 47 are held against longitudinal movement in the arm 48 by means of the head 51 and the collar 52, which are arranged on opposite sides of the arm 48. As will be evident from 6, the bar chine on which there is rotatably mountedV an 42 may be'adjusted laterally ofthe machine by turning-the screws 47 andeither end of the bar may be adjusted independently of the other,within certain limits.

A bracket 53 is secured on the bar 42 by :means of the bolts 54 and carries an idler pplley 59. A- bracket 55 is secured on the aring 39 or other '.fixed part of the may bolts' 56- and carries a stub shaft 57 .on which 4there is rotatably mounted a pulley 58 which is formed with a bevel'gear 58' at its lower end, this gear meshing with and being driven by av bevel gear 58 on the shaft 36.` A bracket 60 is secured to the bar 42, adjacent the bracket 53, and carries an idler pulley 61. At the opposite end of the bar .42 a bracket 62 is secured thereon l by means of the bolts 63, this bracket having a slot 64 in its end in which a block 65 slides, this block carrying a stub shaft 66 idler pulley 67. The bracket 62 also carries, 4on its under side, an idler pulley 68. A lug 69 projects upwardly vfrom' the bracket 62 and an adjusting screw 70 is carried by this lug, the screw being provided with a collar 71. There is an upwardly projecting lug 72 on the block 65 and between this lug and the collar 71 there 1s arranged a compression s rin 47 3 which normally tends to move the bloc toward the right 1nL -.Fig. 5, `the tension of the spring beingl adjusted by means of the screw 7 0.

A bracket 74 is secured on the bar 42, adjacent the bracket 62, and .carries the idler pulley 75, this bracket and its idler pulley being substantially like the bracket 60 andv pulley' 61, as illustrated in Fig. 9.

"Referring to Fig. 3, the arrangementof the belt 41 will be clearly seen, that portion of the belt which engages the edge ofthe sheet` and runs in the oove 76, in the bar 42, extending from pulley 68 to. the

'pulley 59 and travelingrin'the direction of the arrow in Fig. 4.

the back wall of the groove insures accurate positioning of the belt laterally of the feed velocity of thev advancing movement. of the sheet along the feed table so that `when the edge of the sheet engages the belt, this edge will be lcarried forward at the same speed as therest of the sheet and there. will be no lagging tendency which would swing the sheet yout of alignment. Since the driving pulley 58 '1s carried on a fixed-partof the machine, the bar or'fr'ame '42 may be adjusted llaterally-of the feed table, by meansof the screws 47, for the purpose of properly positioning the sheet with reference to the machine withwhich it is to be fed, without disturbing the drive for the belt 41, the take-u pulley 67 .automatically functioning to mamtain the proper tension in the belt at all times.

he arrangement of the belt 1n the groove 76 and in contact with While I have illustrated one particular i form `of feed table, it is to be understood that the invention is not limited to the use of this particular form.v and that changes may be made in the details of the construction illustrated without departing from the spirit of the invention as it is defined in the appended claims.

Having thus described my inventlon, what I claim is:

1. In feed tables the combination'of means for advancing a sheet along said table and to one side thereof, an endless belt arranged along said side so as to engage one edge of the sheet and move therewith, means for driving .said belt, and means for adjusting the position of said belt transversely of sai table independently of said driving means.

v2. In feed tables the combination of means for' advancing a sheet along said table and to one' side thereof, an endless belt arranged along said side so as to engage one edge of the sheet and move therewith, means for drivin said belt, tension means for keeping said bt taut, and means for adjusting the position of said belt transversely of said tableindependently of said driving' means.

3. 1n feed tables' the combination of means foradvancing a sheet along said table and to one side thereof, a frame arranged parallel with the surface of said table along said side, means for adjusti the ends'of'said frame transversely of sai table, pulleys on said i justable.

frame arranged with their 4axes-normal to the Surface of the table, a driving pulley in normally fixed relation to said table, an endless belt arranged to run onI Said pulleys,

' and tension means for keeping said belt taut `the sheet is advanced along said table, a

frame formingv a side for said table and toward which the sheet is moved b said rollers, means for independently adJusti'ng the ends of said frame transversely of the table, pulleys on said frame arranged with their axes normal to the surface of the table, a driving ulley in normally fixed relation to said ta le, an endless belt arranged to run on said pulleys with the lortion engaging the first-mentioned pulleys running. in the direction in which the sheet is advanced and adapted to be engaged by one edge ofthe sheet, belttaut.

5. In feed tables the combination of means for advancing a sheet along said table and and tension means for keeping said to one side thereof, an endless belt arranged along said side so as to engage one edge of the sheet and move therewith, means for 'driving said belt means forv adjusting thel positionl of said elt relative to said table, and a lpositioning member adjustable with said be t engaging the side of said belt that is away from said table and preventing deflection away from the table of that portion ,0f the belt that is engaged by the Sheet.

6. In feed tables the combination of means for advancing a slleet along said table and to one side thereof, an endless belt arran ed along said side so as to 4engage one e ge of the sheet and move therewith, means for driving said belt, means for adjusting the position of said belt relative to said table, and a ositioning member' adjustable with said bell having a groove in which that porti'on of the belt that is engaged by the sheet runs, the wall of said groove serving to back up the belt and reventvdeliection thereof away from said ta le.

4Intestimony whereof, I 'hereunto 'aiix my signature.

ANDREW OLSON.

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