US1003998A - Feed mechanism for metal or other sheets. - Google Patents

Description

F. EBERHART. FEED MECHANISM FOR METAL OR OTHER SHEETS.\

APPLIOATION FILED mums. 1910.

1,003,998. Patented sept 26, 1911.

is 0Q 00 F. EBBRHART. FEED MEGHAL'ISM FOR METAL OR OTHER SHEETS. arruonmn FILBVD mn.a,1s1o.

F. BBERHART.

m1) MECHANISM FOR METAL 0B OTHER SHEETS. APPLICATION rum) nun. a, 1910.

1,003,998. Patented Sept. 26, 1911.

Q a SHEETHHEB'I' s.

F. EBBRHART. FEED MECHANISM FOR METAL OR OTHER SHEETS. APPLIUATIOH mum 11.3, 1910.

1,003,998. Patent d Sept. 26, 1911.

6 BIIEETSSHEBT 4.

.F. EBERHA-RT. FEED MECHANISM FOR METAL OR OTHER snnm's. APPLIOATIOH FILED MAB-.3, 1910.

6 SHEETS-SHEET 5.

- P. BBERHART. rain MECHANISM FOR METAL on 01 mm smzn'rs APPLICATION FILED XAR. 3, 1910. 1,003,998.

Irwenr Eekkzr UNITED STATES PATENT OFFICE.

FELIX EBERHAB'I, OF NEW YORK, N. Y., ASSIGNO E 10 ERICA-H GAIN OOHPANY, F

- NEW YORK, N. Y., A CORPORATION OF NEW JERSEY;

FEED MECHANISM FOR ETAL on cram Specification of Letters Patent. Patented Sept. 26, 191 1. Application filed March 8, 1910. Serial Ho. 547,099.

mechanism for feeding metal or other sheets to various machines, such as rotary printing presses, sheet metal slittin machines, tin plate cleaning machines, tin plate coating machines, etc.

The object of my invention is to provide a sheet feed mechanism of a simple, efficient and durable construction, which will facilitote the feeding or delivery of metal or other sheets to such machines, and which will operate to time the feeding or delivery of the sheet with the feed slide or conveyer which delivers the sheet to the rollers or other devices of the machine.

' The sheet feed mechanism embodyin my invention. comprises in codperative com ination, a main feed. table and feeder, preferably a reciprocating feed slide with fingers for automatically feeding the'sheets to the rollers or other devices of the press;

slitting machine, coating machine, cleanin or other machine, a supplemental feed table and automatically operated feed rollers for automatically deliverin the sheets one by one to the main feed ta 1e andmain feeder and thus also timing the proper delivery thereof tothe main feed table and feeder, a vertically movable feed table upon which the pile or stack of sheets to be fed is placed, and mechanism for automatically raisin 40 thesame the. thickness of a sheet at eac stroke or feeding movement of the main feeder to automatically maintain the top of the stack or pile of sheets at the properv height or level ill-relationto. the supplemental feed table and feed rollers to facili tate the delivery of the sheets oneby one by hand to said supplelnentalfced table and 1 feed rollers. 3

My invention also cofisf sts in the novel. 0. construction of parts and devices and in; the

novel combinations and e:iib-combinati'ons of partsiand vdengices herein shown and dethei;

iii.

' "f ism "alum: 4,;

part of thisspecification, Figure 1 is a plan 1 view of a sheet feed mechanism ordevice embodying my invention. Fig. 2 'is'ga side elevation. Fig. 3 is a vertical, longitudinal section on line'3-3 of Fig. 1 and Fig. 4

is a verticaleross section on line 4'4 of Fig- 2. Figs. 5, 6 and 7 show a modii'yiw' tion, Fig. 5 beings. partial plan similar to Fig. -1, Fig. 6 a partial vertical section simi;

lar to Fig. 3 and Fig. 7 a detail, vertical section showin certain parts of Fig. 6 in a different position. In the drawin A A represent, :(diaw grammatically), riven rollers orother de-w vices of any suitable machine, such, for can ample, as a. rotary printing press, a sheet slitting machine, a tin plate eoating"ma-f chine, a tin plate cleaning machine or other machine for performing operations upon metal or other sheets. 1 B is the main feeder or conve er by which the sheets are fed or delivered one by'one to the machine, having the'rollers or devices A; the same neferably consisting of a reciprocating sli e having finger's b" andgo moving back and forth on suitable guides B on the stationary frame A of the m--; chine.

C is the main feed table upon or along" which the sheets are moved by the feeder'B. 35

The feed fingers b are preferably yieldin fingers, having a pivotal connection I) wit the feed slide and backed up or supported by sprifi'gs b surrounding a rodorstem '6', carried by a v ivoted arm I) connected with the slide y a shaft b. 7 The stern passes through a verticalslot b idthef. feeder finger b and has a nut. b at its outer ends The stem b is provided with an ad justing nut b. and also with a not bf'ior g adjustirliig the tensionof the spring, j feeder is preferably operated cated as required by -meansfoff fl- F." on the shaft ging'elrolleflfiiigifilhe be'nt leverlllpyliic 1s connected-h a; B with the" feeder slide, y

The feed. tgible 0 preferably, foi a phir'ality of'barsor gtrips;Islets; orropenings betweenflthem for;ithe..;, e lg, i fingers it up through eed -ioo tab e .CI a-r e lr ummit harm r n :e tt 'i me: reaka e.

n m are er... n

P a tan and E jthefeupplemenjgal i 1 lower is preferably a metal roller of uniform diameter from end to end.

The upper feed roller D preferably consists of a pair of, short rollers or disks furnished with elastic or rubber tires or treads d, and the shaft thereof (1, is preferably mounted movably on vibrating arms or levers d, fulcrumed on the frame by a pm at, so that the feed rollers]? can. be automatically Se through 01 gear g 6 arated from the lower-rollerD and broug t .which'meshes with a bevel gear 9' on a shaft g whi h-has a bevel gear g meshing with a bevel. gear d on the shaft d'of the lower roller D. The shaft d has a spur g ar at meshing witha spur gear at on the shaft ,of' the upper feed rollers I), than driving the upper feed roller, when its gear is lowered into contact with the gear on the shaft of the lower feed roller. a

, The so plemental feed table E is provided wi side guides E, adjustably se I cured by set screws E which pass through slots E in these side guides or gages; One of the side guides or gages E is urnished with a light 5 ringE to press the edge of the sheet snug y ainst the opposite guide E The sidegul e or gage carrying c spring E is arranged at an angle to the ath of the sheets. Above the feed table inclined guide {arms I) are provided to aid in directing the sheets into the feed rollers 'I qie vertically movable feed table Fupon which the pile or stack of sheets X to'be fed is provide with a ga or guide fyfor one edge of the sheets as o the pile or staekfX to abut against, and is referably moved u and down as required y rotary screws F,

' mounted'in suitable standards A on the frame of the, machine and englagil'lng threaded sleeves or nuts f with whic e vertically. movable feed 'tablqF is provided. The threaded sleeves or nuts are preferably furnished with horimnta agld V a wooden. board. :The standards frame pmfereblybriced orrcohnedeiby emental' frame screws the slipping of the feed Lif -Theo y of the vertically movab e movement of. thojn'aln,

e s s-ff" meshing bevel are on the cross or connectin a shaft whi is furnished with a ratchet and ,is'operated by a-pawl f on the awl arm or lever f", and which is connected y alink f with the bent operating lever B" of, the main feeder B by a clamp Phavingj'a, pivot shank fitting looselyin a round hole in the feeder lever Bvto give said clam -'a rocking connection with saidlever B. clamp f" afl'ords an adjustable connection between the lever B' and the link f". E- spring pawl f prevents the ratchet f' from turnin in the wrongqdirection." I "f The audio lever 5 pivoted at h to" tbs frame by engagementwith a pin f" on'th epawl f' serves to raise the owl out ofgagement with-the ratchet w enever the operator may, desire. The lever H has a vcurved arm Mprovided with a cam face. It

adapted to enga the cam face It oi-a spring stop h which holds the stopIlever H= in 'it's raised osition. The lever is near the base of t e machine and is designedto be operated by the foot. 'A'further stop of disengaging lever H is provided in convenient reach of the ziperators hand and is! connected by a link with the stop or disen Eing lever H. x e supplemental frame A is pmferabg furnished with antifriction r'ollers or'whe' K with which th'efeed table F may engage when in-its lowermost position to facilitate table F intoposition upon its screw operated sleeves or nuts f with a new or full stack ,or pile of sheets thereon. By' thus havin the feedtable F strolre or feedin feeder B, refers, 1y through on the aha of the screws 1 removably 'connected wit its-elevating devices, nuts or sleeves, the work'o'f' puttmg'a s "or pile of sheets. in place on the vertically movable feed table of the machine is materiall facilitated.

One 6 the screws F is preferably furnished with bevel gear f a-tjts upper end, meshing with a bevelgear f" having a handle or crank arm f" 80 that the vertically movable table or support F may be raised by hand when desired, and also to facilitate the loweiing-ofthe table or sup ort- F gwhen all the sheets of the stack or pi e have been fed therefrom. The sup lemental frame A upon which the 'verti lyrmovable'feed table-or sheet support 'F and the so plemental feed table E and supplemental eeder D are mounted, isreferab y ina separate piece from the A and imbly supported suitable guides or ways 12 to raise the ting. are vautomatically operatedor feed e Fthe'thickness of asheet stench A ifl. F v v' I shaftM'ywhiehnna suitable lever or wrenchhf 'jthe supplemental 13o frame in res ect to the main frame, as may be required f dr operation upon sheets of diffcrent sizes.

In the modification shown in Figs. 5, 6 and 7, which is the construction I prefer to employ instead of raising and lowering the upper one of the feed rollers I) D in time with the main feeder B as hereinbefore described, through the action of the cam B and the connections for raising and lowering said roller, I mount the upper roller D in movable bearings 3 backed up by springs 4, and I employ a movable stop device or sheet feed controller I in front of the feed rollers D D and which is automatically moved in and out of the path of the sheets in cooperation with the movement of the feeder B. The sheet stop device or feed controller P preferably consists of a pair of vibrating fingcrseachhaving a shoulder P to engage the front edge of the sheet and each secured by apivot pm p to an operating arm 39 on rocklshuft p, the arm p of which is connected by a pin and slot 12', a with the link El whiclris connected to tie arm B of the lever B which is actuated by the cam B A spring p, is interposed between the feeder finger-"P and its operative arm p and the finger and armhave.inter-engaging dogs or shouldeis p" 'p". to cause the arm to retract the pivoted finger T from the path of the sheets aiiflcompress the spring. At the proper timejtlie -cam' B" through the connectionsnbov mentioned raises the arm 72 and retracts the sheet device or controller P so as to allow the sheet'to pass into the feed rollers I) D. Asgthe sheet asses between the feed rollers D D the s eet itself will hold the spring fingers P in their retracted position and as soon as the sheet passes, t e spring 72' will restore the fingers P to their original position in front of the feed rollers shown in ig. 6 and thus prevent any possi elinsertion of a second sheetejn the rollers until the proper time when the final feed fingers b have receded in position to take-u .the nexfsheet The automatically movablh spring-held feed controller fingers P thus perform the same function as the verticallymovable or-dmp rollerl) in the construction shown in Figs. 1 to 4. The use of-the feedcontroller fingers P renders it impossible; for the operator to shpve the aheeti'n too far which is "liable to cause buckling of the sheet, a"

I claimsj 1. In. a. sheet feed mechanism, the combinationof a main fecdtable and feeder, of a zsupplemental feml, table and feeder, and a verticallfyijmoifnble feed table, said supple en'iental' said vertically" movable feed table, and said end table and feeder being between main feed table and feeder, substantially as 2. In a sheet feed mechanism, the comibination' of a main feed table and feeder, of a su plemental feed table and feeder, a vertical y movable feed table and means for automatically raising said last mentioned feed table the thickness of a sheet at each feed-movement of said main feeder, said supplemental feed table and feeder being between said vertically movable feed table and said main feed table and feeder, substantially as specified.

3. In a sheet feed mechanism, the combination of a main feed table and feeder, of a supplemental feed table and feeder, a vertically movablefeed table, and means for controlling the feed action of said supple- 0 mental feeder in cotiperation with said main feeder, said supplemental feed table and feeder being between said verticall movable feed table, and said main feed ta lo and feeder, substantially as specified.

4. In a sheet feed mechanism, the combination of a main feed 'table and feeder, of a sup lemental feed table, and feeder, a vertica ly movable feed table, means for automatically raising said last mentioned feed 0 table the thickness of a sheet at each feed movement of said main feeder, said supplemental feed table and feeder being between said vertically movable feed table, and said main feed table and feeder, and a device for throwing said raising means out of operation, substantially as specified.

5. In a sheet feed mechanism, the combination of a main feed table and feeder, of a sup leniental feed table and feeder, a ver' tica 1y movable feed table, means for automatically raising said last mentioned feed table the thickness of a sheet at each feedmovement of said main feeder, said supplemental feed table and feeder being between said verticall movable feed table, and said main feed table and feeder, and means for controlling the feed action of said supplemental feeder in. cofiperation with said main feeder, substantially as specified. 6. In a sheet fee mechanism, the combination with an automatically operated sheet feeder and a feed table in front thereof, of 'a vertically movable su port for a ilc' of sheets in front ,of said eed table, an means for automatically raising said support to maintain the top of the pile of sheets at proper height in. respect to said feeder, substantially .as s ified,

su stantially as specified. 8. The combination with a, feed table and feeder, of a. vertically movable support" for 125 a pile of sheets in front of said feedtable', and means for automatically raising said support maintain the top of the pile of 7. The Eonibmation with a feed table and and means for automatically raising said support to maintain the top of the pile of sheets at proper height in res t to said feed table and feeder, and a' rther feed table and feeder to which the sheets are delivered one by one by said first mentioned feeder substantially as specified.

. 10. in a sheet feedmechanism, the comhination with an automatically operated 7 sheet feeder and a feed table in front thereof, of a vertically movable support for: a pile of sheets, and means for automatically raisin said support to maintain the top of the pile of shoots at proper height in res ct to said g feedei. nnda further'feed tab e and feeder to which the sheets are delivered one by girieby said first mentioned feeder, substantially as specified.

I'lJIn a sheet feed mechanism, the combination with an automatically operated sheet feeder and a. feed table in front thereof, of a vertically movable supportfor a pileof sheets, means for automatically rais- 80 ing said support to maintain the top of the pile of sheets at proper height in respect to said feeder, a further feed table and feeder to which the sheets are delivered one by one by said first mentioned feeder, and means for controlling the feed action of said first mentioned feeder in cooperation with said second mentioned feeder, substantially as specified. f '12. The 40 table and feeder, ofa movable support for-a pile of sheets in front of said feedtable. and screws and th ed members for raising said support, substantially as specified.

18. The eombinationwith a sheet feed pile of sheets in front of said food table, screws and threaded members for raising said"support, said" support being removably applied to said threaded members; substantia ly asspecified. v V

14. The combination. with a 'sheet feed table and feeder, of a movable support for a pile of sheets in front of said feed table,

screws and threaded members for raising.

port, and a frame having rollrs'w said sup facilitate the insertion of said removable --support with the'pile of sheets thereon, substantially us, 8pm

15. In a sheet feed uiechanism, the combination of 'a mainfecd. table and feeder with a supplemental food table and combination with a sheet feed,

table and feeder, of a movable support for a said vertically movable feed ism, the 50m? bination of a main food table and feedfirg with a. supplemental feed" table and feed" rollers, a verticall movable feed table, said supplemental f table and feed rollers being between said vertically movable feed 15;

' table and said main feed table and feeder.

and a movable sheet stop device in front of said feed, rollers to control the feed" action; thereof in coiiperation with saidmain feeder, and a spring for said step device, '80 substantially ass f 17. In a sheet 7 mechanism, the eom-' bination of a food table and feeder with a supplementahfoed table and rollers, a verticaelgg movable, feed'table, said supplemental f table and feed rollers bemgbetween said vertically movable-food table ind said'main feed-table andfeedr and a movable'sheot-sto device in front o said feed rollers to con l the feed actionfio thereof in ooiiporatio'n' with sai main a feeder and means for odlpmeticallyopera,t-}

said mam' ing e' vise m ma feeder substantially as 18. in a sheet feed mechanisiiii-thejoomas bination with a main food tablo and feeder, of a an plemental feed table and feeder a vertical v movable feedtable, said supp emental table and'ifeeder being bet main food table and feedergand movable spring held stop fingers in the path of the sheets to control the feed action of said 'susplemental feeder, substantially as speciv 19. In a sheet feed mechanism, the com bination with a main feed table and feeder, of a supplemental feed table and feeds! l vertical ymovable feed au pice mental feed table and feederbeing'betw table and said M main food table and feederimand movable spring held stop fingers in t pathof'the sheets to control the feed action 0'1 said supplemental feeder. and meansfor 'operat- 116' ing said step fingers in cooperation with said-main feeder, substantially as specified. FELIX nsnnnanr. j wim p I H. E. -OLARK,

Cannes E. Escam. v

I ween said vertically movable food table and said 10,

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