US946049A - Feed mechanism for printing-presses. - Google Patents

Description

y .KACHA. FEED MBGHANSM POB PRINTING PRESSES. .APPLIUATON FILED JULY 30,1908.

` 3 BEEETS-SHEET l.

patented gan, 11, ww.

5 9 www J.A.KACHA.4 FEED MBGHANISM PoR PRINTING PRESSES. Y

APPLICATION FILED JULY 30, 1909. 9469949 Y Patented Jan. 11, 191).

3 SHEETS-SHEET 2.

fg. i

J. A; KACHA.

FEED MEGHANISM POR PRINTING PRESSES.

APPLIUQTION FILED JULYso, 1909.

Patented Jan? 11, 1910.

3 SHEETS-SHEET 3.

I' Il 2, an enlarged side elevation,

entren sra'rns ravenna onirica.,

JOSEPH A. KAC'H., 0F CHIGAGO, ILLENGS.

4FEED MECHNISM FOR. PRINTINGERESSES.

Specification of Letters Patent. aggng Jn, ii, lg

Application tiled July 3D, 1909 i' Seriall'oi 510,371.

vertically movable platform\\a;nd suitable` n'iechanisn'i provided for removing said sheets singly from the top of said pile and feeding the same to the press. This proceeding would, of courserlower the level of the top ot' said pile and as it'is important to the success-tui opera tion -ofsaid feeding mechanism7 that the level ntiithe top of said pile remains substantially constant, suitable mechanism for automatically accomplishing this is desiraole.

The object of my present. invention is to provide such automatic mechanism which shaii be of simple construction and efficient in operation.

My invention consists in the combination and arran ement of parts hereinafter described an claimed.

My invention will be best understood by reference to the aceompanving drawings forming a part of this specification, and in which,

Fi ure l is a. top plan view of mechanism for ceding sheets to'a printing press, in-

cluding my improved mechanism for autofv matically maintaining the top of the pile of sheets at a substantially constant level; Fig. artially in section of the mechanism for e evating'the sheet pile, and Fig. 3 e transverse section of the same.

The pile of sheets .1 Vis vertically movable platform 2 aving rollers 3 contacting with thesides of the frame 4t and thus serving to guide said platform in it'svertical movement. Platform 2 is suspended upon four flexible belts 5 taking over pulleys 5 in frame 4 and wrapped upon shafts 6 supported in bearing brackets i at either' side of frame 4. 'Quartentmsted belts 8 are wrapped, upon shafts 6 and upon a transverse shaft@ mounted in framefl. At

1su portedon 'a one endshat 9 carries a ratchet Wheel l0 tlxed thereto and-a pivotcd pawi arnrll card ryin a pawll 12 adapted to engage ratchet whe-e l0 A link '13 connects pawl arm ll with a wrist-pin 14I on a disk l5 which is. carried by a shaft '1G suitably mounted on frame 4. Shaft 16 carries a gear 17 mesh.`

-one of the driven shafts ot theniain feeding met'ha-nism. X stop pawl l0 serves to pre'- vent backward movements of ratchet l0. By this construction it will be seen that the pavvl.

-ai?m ll. andpawl l2 will be constantly re vciin'ocated vand that when pawl l2 is in engagement with ratchet l0 the shaft Sl will the medium of belts 8, shafts 6 and Belts 5.

laivl 12 is connected by a link :2O with the outer. longer limb 2l of a substantially il shaped level' mounted in hearings 23 on frame 4. The lever 22 carries a positioning collar betweenbearings 23. 'Collar 2li. 'is provided 'with an upwardly extending bolt or pin to which is attached a spring 26 having its other end secured to a bracket 27 on ing with a gear 18 upon a she-ift 19 which is he operated to elevate platform 2 through' frame-fl, 'l`l1e inner and shorter limb oflevcr 22 takes under a cross bar 2S) carried hy a lon .gitudinally extending lever 3() which has au foot 3l at its end contacting ,with the top et' the sheet pile l. The lever 30 is pivoted in e standard 32 secured to a supporting talole 33 on trame 4. .A spring 34 secured to said lever 3G and to said support-ing table 33 serves to yieldingly hold said lever foot in i contact with the top o the sheet pile. @on .tacting with the under side of lever t? an eccentric cam 35 secured to a shaft 36 which is mounted in brackets 37 supported on table 33. Shaft 36 carries a gear 38 meshing with,

a ear 39 on shaft il which is one ofthe driven shafts of the main feed mechanism. .The cam '35-is providedr for the purpose ot raising 'the foot 3l from the top of the sheet;- l pile when the top sheet o' said pileis re moved therefrom. The' specific mechanism .for removing the top sheet 'from saidpie -forms no part of my present invention and is not illustrated.y in detail, inasmuch as any `Well known or desired mechanism tot' this pu'rpose may be employed. lt will be on j served that as the level of the top of the sheet pile descends, due to the removal. of sheets therefrom, the-cross har 29 will de scendtlerewith carrying with it thepawl l2 through the medium of lever 22 and link 20. As soon as pawl l2 is depressed suseen that the sheets sii-e i'emoved from f lle top of the ,Sheet pile the level ef the top i l ei the pile will lee maintained substantially ennetent, thus facilitating the operation of the mechanism for Withdiawing lie sheets singly ioin the top of sind, pile. By making the erm 2l. longer than the ni'm 28 the Varlin tiene in the level of the top of the sheet pile are mngniliefl in transfer to the pewl 12 thus ineieasing the sensitiveness ol. the mech enisi'n.

l/Jliile l have illustrated and, rleecribed the pietecrecl construction for earl'ying my inveiitien intnielleet this iS eapn'ble lil Vinvin-` tinn and nieeliliention without; `departing liieni theepiiit oit' ythe ii'iventien. l, therelme, le nel,- wieh to he limited t0 lthe exact detalle of eens fnetion eet forth but wish to avail myself ot such Variations und modilieetie-ns i come Within the Scope nl' the appended claims, f

Having described my invention what l elaiin as ne v and desire te secure by Letters Patent is: i

le ln mechanism of the class described, the

ceinbinzition with it supporting freine, of

veitieelly adjustable plet'oi'ni mounted therein und. adapted. to support a pilev of paper sheets; pulleys 'mounted en the sides ef the frame; nmizental shafts mounted at either side nf the frame; `Supporting' belts seein' l t the bottoni of saint platform .on lietli-. des t eithei' end, Said belts extending thence upniei'lly ever said pulleys :incl thence (levfni'v/nrdly, the ends of the belts on either e being wei'zntl upon Said hiizontal transversely extencnng shett;

qnai'te1'-tWistedlieltss wi'eppeel en seid trans verse and on Seid herizontal side .'shafts; and 'nntonmtie nieelminsm for operating Said; transverse shaft, seid automatic meheiiism l eine' controlled 'by the height of the top of the sheet pile, substantially as (leseritie` ln ineelnn'iism eli' the class describedgtlie combination with a. snpprting tame,` of :i vertically adju-stable platf0rm` mounted therein miclzfeflzipted te support e 'piley ef paper sheets; relleis carried by seid plat ferm and eontaeting' with the -sides of Seid freine; pulleys mounted on the sides el. the l'i'znne; horizontal shafts mounted at either side of the frame; -snppmtin'g belts secured to the betteln n'l'snicl platform on both sides at either end, snirl belts extending thence npj Wniflly over anni pulleys und thence down'- wni'illy, theende el the belts nn eithersiile being' Weni'nl en Suid horizontal shells;

ii'nnsversely extending shaft; quartieri-twisteilbelts wrapped en enift transverse and lon seid herizoninl simile; ratchet und pztwl mechanism fel' di'ivingsaid transverse slm it;

:i longitudinally extending gage lever yielflvv ingly contesting with the n 'iper sni'l'eee et.' said pile of sheets; :l eznn '01 ten'ip'eiai'ily raising-sei( gege lever i'i'mn entziet with seid pile elfsh'eele; e transversely extending lj-sheped lever having its in'nei' 'limb Spring heldv z'igainst seid longitudinal' extenrling lever and :i depending linlr. pivoted te the enter limb el sind lever and to the nml of said :iwi and ratchet mechanism l l substantially :is described.4

ln testimony vflieieoi l naine to thisI specifieatinnin ihe presence "of twn subscribing Witnes1,.

Jl'isiiii-i A. Keene.

1Witnesses:

HELEN l?, Linus? JOSHUA ll.; flyers.

lieve signed niyv

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