US1578371A - Stenciling machine - Google Patents

Description

March 30 1926. l

v V E. G. Row/LEY STENGILINGAMACHINE Filed-April 5o, 1924 2 sheets-'sheet 2 w /f f Aitor/1e t Vtionedv withinithe:cylinderot the machine,r

Patente-a Mar. 3s, 1ere.Y l

oNrrED STATES ATE i-QFEIC-,E

EnWARnG. RoWLnY, lor BnLLEvrLLnfNEW arrasar; essieu-on 'iojurinEnviro(inVV Y V'Jnrr' 1r.irarna ooMraNY, or NEW Yon-zen. Y., A ConroBArIon or-nnnawaany..

s'rnNorLrNG Maenner;v

application fue@ April; so,v i924. serial No, 709,966. Y

i Be it l-:nownf that I, Enum-mnV a. citizen of the United States, residing in Belleville, in thecounty of EssexL and Stato vet New Jersey, have invented `certain new-1 and useful Improvements l in Stenoiling.

Machii'ies, of which the following is a'speci.

This invention relates tol stenciling niachines, and more particularly to, an inl;- Adistributor or spreader arranged to be posiand to means for' disposing ofsai'd distributor when not inuse. l

I secure within the stencilecylinder an ink fountain which may assume the form of a cylindricalcontainer, rotatably attached at one end to the inner end of said stencil'- cylind'er, and extending through the saine nearly to the opposite end thereof. This container is providedv with' one or more inlfeeding apertures or slots, from which' the ink vmay drop upon the interior of the stencil-cylinder. The fountain is revolubly shiftable uponi-ts support, so that,ia-fter the stencil-cylinder is turned to 'bring vany desired portion thereof to the bottom,the fountain may/be turnedto bring its ink? feeding apertures to the bottom. f Onefcature of the invention is the provision of means for spreading the ink evenly over the interior of the cylinder, to produce work of luniformv quality; i j Another featureis the provision of irnproved means for automatically controlling the opening and closingo't the inkffeeding apertures when the container is vturned to itsrespective operative and inoperative positions, although the device may 'be used without this controlling means, 'the excess ink flowing back by gravity into the container Vthrough the apertures-upon rotating back to its normali position. Y y

The invention further` contemplates the provision ofr suitable guard-platesv which functionboth asa shield'for the brushes when in operative position and as means to prevent excess ink from flowing ,downl and spreading over the surface of the container when the device is out ofoperationf.` y

Another feature of the invention is the provision of arnovel and simplified stop mechanism forlmitngthe angular move'- nent of' the container when' rotated, andfto lock the same' againstmovement during the G. RowLnY,

position.

inking process, as Vwell as inits inoperative i Other features andadvantageswill'herer inaiterappear..

Inj theA accompanying drawings,

' Figure'l .a longit ud-inaly section ot a stenciling machine, showing an vinkedistributor in its normal position.v 1 Figure 2' is a longitudinal. section ofthe ink-distributor taken'- on the' line 2f-2 ot 'Figure L Ain the direction of the arrows,

Figure 3 is'a longitudinal section fof the stenciling machine, showing the ink-distribf utor -i'n operative position,` a portion; theref` of being brokenfaway to showthe` interior mechanismi,l Y l l I Y. Figure 4; is across-section onthel line 4,-4'01E5Figure 1. i e f v Figure 5 is a similar crosssection,show ing the 'ink-distributor in inkingV position.

Figure 6 is a detail view Aoft one. ofthe end plates Vof the container, showing the" stop mechanism.

For the purpose of illustrating the inven'-,r tion, I have shown 'in'l the accompanying drawings (particularr'eference being direct edtoy Figure l)y my ink-distributor applied toa conventional fornrof stenci-ling machine,

in which a perforated' hollow cylinder or drum is Vcovered with 'yan ink-blanket and a stencil-sheet is lat-idv uponfthe blanket, the paper to be stenciledf'being` run, betweenl ythe stencil'f-sheet and "a; pre`ssureroll-,v the. ink being applied to the. intt-sriorofy the Acylinder and taken up by the ink-.blanket upon the exteriorthereof.-\r ff f I f l have used the reference character 10 to designate a: base upony which a pair of end frames l1 and. 12 are mounted.I Al

' yokeeshaped frameA 11 andrevolving on rollers l5 mounted in this frame. A handle 16 provides means whereby motion may be f1 yimpartedV to the cylinder. f

Reference numeral 17 indicates the usual` ink-blanket wrapped around the stencilcylinder, the' ends being caught upon a- -pair ot' rods located' 1n a channel meinberlS. An ink-container 19, comprising a 'cylindrical 'tably shfiitablewithinthe stencilcylinder 14."

The end caps20 and are formed with l flanges and 21 fitting within the ends lof the cylindrical body 19, and are ,securely fastened thereto 'by means oi'rsuitposition the pair :of cams 29 actupon the able screws 22, or inany other desirable` manner. i Y, a

A shaft 23 extends centrally through they Vinterior ofthe container 19one of the ends thereof ittingwvithin arecessf'in a lug 24 f ic formed with the end lcap 20, tlierotlier end.

of the shaft .erft-ending through a hub por:

tion 25 of they cap 21 and a ra'n'ie 26.y ItV i, will benoted that thewfraine 26 carries an annular sleeve 27, which titswithinan an-A nular reces's27in the hub portion V25 of the end cap 21,'tliusproviding a bearing upon i y Which the container and its associated parts are re-volubly shiftableA The `shaft 23 is :held *i against VVfrotationptliro'ugh the medium f of a p in28 passing at right anglesthrougli said vshaft, and being received Within. notches 28 orniedcin the outerf end of `the sleeve 27'.

One vof a'pair of cams 29A (later'described) is secured uponthe' shaft 23 immediately adjacent the outer endrof the hub 25.` "The Q shaftl23, furthermore', is thi'eadedadjacent one endand receives a nut V and afco'iii pression-Washer 30 acting to draw the cam u 29 against the outerend ofthe hub 25 to'revl right angles into an aperture 31 in an ex-V tension 26 of the rame 26 and is secured thereto by means of set-screws 31. ,Y rIhus it Willbe seen that 'the support of the entire distributor is taken atone endA of the ma.-

chine, leaving theother end lentirely 'free and' accessible at all times, and thatl the axis ofthe container 19 is disposed eccentricallyV to the axisofthe stencilf-cylinder.

Ink-feeding apertures 32, disposed lengthav Wise in the-Wall ofthev cylindricallcontainer 19, are normally-positioned at vthe topof said container whenVY the device isnot yin use.

and are air-sealed by 'means ofv an automatic sealing device, which Will now be' described,

attention beingdirected to Figui-es 2, 4v

and 5.

fA shaft 33 extends through the container 19,'the ends beingfsuitably supported :at 34 levers are mountedfor movement upon the shaft 33 and occupy positions adjacent each v of the end capsabove described. Rollers 36 are carried by `one of the free ends 37 of 'eachof the rockerarms 35 for a purpose describedlater. The other reeends 37 of the rocker-arms l are connected togethen by a channel bar 37 vWhich carries a felt f Vstrip functioning as a stopper 38to prevent airfroin entering the container through the' over the apertures 32, but upon shitting-the maintain the stopper 38 in closed position container from its'normal posit'ien to inking tlieform of .brushes40 are mounted radially Yupon the exterior of thecontai-ner 19 andv eXtend'in parallelism throughout the length of the lapertures'32 onbotli sidesthereei.

nY order to obviate `.any t tendency: oeXe the container .Whenxjthe saine Y is turned up and out ot use, there is provided a pair ot cessink fi'oinspreading Aover the exterior et l substantially..right angular guard-platesI 41,*

suitably secured upon the cylindrical body@` .19 and,y extendingfparallel withl 'the `brushes 40 throughout their length. When the desV 't vice has been rotated"toinlringrposition.the"v guardlplates 41 ,act asfstops' to "limit the *de` gree of rotation of the stencil-cylinder dur# V ing the inking operation. and Otte-rra prof tective sliieldftor preventing linyury to the brushes. y v Y A spring-pressedv latch 42v isfulciunied at 43 Withina channel slot44 in the truniiion 13.V Stops 45fand notches 46, disposed on opposite sides in the edge otza flange 47 formed With the end cap21, co-operate with an engaging: end 42 of. the spring-pressed latch 42 to limit the degree of movement oit the eontainer'inboth directions and vloch they same in a lixed position While Vperforming theinking operation, or When out ot use (see Figure 2). The containerreceives a supply of ink through a port 48, which yis closedV by a screw-plug 49, and apring-closed valve ing operation is performed in thefollowing manner.

The handle of the latch 42 is pressed down,

ics

thusreleasing its engaging end 42 i`rOnitlicV Y notches 46, whereupon the container may be angularly shifted one-halt ot a revolution to a position in Ywhich 'the :brushes 40 Y bear against the Walls oit' the stencil-cylinder 14. During this inverting operation, thecams 29 have acted to unseat the stopper 38 from the inking apertures 32. lnthis position, the end 42 ofethe'latcliV 42has engaged the notches 46 on the opposite side 'oic lthe 'con tainer holding said"container rigidly in place. Y tated until a side Walloi the channel inember 18 comes in contact withI a guard-plate 41. `The spring-'closed valve 5,0 is then pressed to permit air. to enter the container, reflie'vingthe vacuum tendency therein, and vthuspermitting allow otinl: through the ,apertures 324 andm'donto the interioroiane stencilfcyhnder. The stencilecylmder is then,

The stencil-cylinder 14 is lnow rc.-r

bination With a revoluble cylinder, Vof an ink- .dispensing device rotatablyshiftable upon a support Within the1cylinder,*the :axis of said ink-'dispensing device beingfeccentiie j tothe axis of said revoluble cylinder.V

le.' Ina duplicating machine` the coin- Y biiiation With a revoluble cylinder', of an ink# vvdispensing device having an outlet opening 1oVA axisofsaid i'eveluble cylinder, to Vcause contherein, said inklispeiisiiig device bei ng revoiublyshiftabrle upon anaXis eccentric to the tact of said ink-dispensing device Withthe cylinder wallfgupon a: reist-Jef rotational movement of said ink-dispensing device VWith respect tov said cyiinder.'`l i f l5. In a duplicating machine, the comn binationiivith a revoluble eyhndeiyofan ink- A l f fountain revolubly shiftable upo'nja'v support Within saidA cylinder, and an ink-distributing' device-carried by said inkl-'fountain effective upon shifting ofsaid` fountain to contact with the cylinder to cause distribution of inl;

i over? the surface thereof When said cylinder is rotated.' v f,

16, The combination with a revolubiy shiftable ink-container-having an ink-feed'- ing aperture therein, of'means to prevent spreading of excess ink over the exterior surface theieof.

17. The combination y ivith a i'evolubly shiftable inking device having an outlet aperture therein, 'of' shields adjacent Vsaid aperture` acting to check the flow of excess ink over the surface of said inking devicel when the saine isv shiftedv to non-inking position. f Q18. In at duplicating `machine, the coin.-

' inking operation. i i

' 19. In a duplicating machine, the' coin- Y binationA with va revoluble 4eylinder,--of an link-fountain revolubly shiftable Within-the cylinder, and means associated Withf'said fountain acting to limitthe'degree 0fV rotation of said revoluble cylinder during an binationv With a revolublecylinder,ofV an ink-fountain rotatably shiftable upon itsqaxis Within the cylinder, and a pair of stops carried by said fountain acting when the fountain yis shifted to inking position to limit the degree of rotation of said revoliible cylinder in both directions during an ink- `ingv operation.

120. In :aduplicating machine, the com- `"binationlWitha revoluble c yliiider, of an init-fountain rotatably shiftable *upon its anis within said cylinder, means associated With said fountain to ylimit'fits movement invase/i beyond 'a predetermined position ,'When shifted, saidvfountaiiihaving an outlet opening in the lside `Wall thereof, and' means'to close 'said lopening When the fountain .isi-

shifted to.non-inkingl posit-ion.y l Y 2l. In a duplicating,machine., 'the vcombinatioirivith a revolubie cylinder, of an inlcfountain ,rotatably shiftable upon its axis Witliiirsaid cylinder, stops carried by said fountain, a releasable latch Vin'einberarranged to engage said stops to limit the angu-y larinovement ofthe fountain whenk shifted iipoiiitsaxis, said fountain having an outlet opening'v in the sidewall-thereof, a seal-Y- ing devicefiinounted for movement adjacent,

said outlet opening, and means to lcause said sealing device to .close against ',the outlet position. Y

2211i a y K bination Wi'tha revohibleVV cylinder, ofv an V,opening Whenthe fountainis vin nondnking -Y ink-fountain rotatably 'shilf-table upon :its axis Within said cylinder, 'stops carried by said fountain, a releasableflateh member arranged to .engage said stops to liinit thek vangular movement of the fountain'.when

shifted upon its axis, saidfountaiiil having an outlet opening in the side Wall thereof,

Y sealing device mounted for movementad- `jacent said outletopening, 'andineansA to cause said sealing device to yiinseal the outlet openingivhen the fountain is shifted to inlrthe'intericr of the cylinder. i 'l y V- In a duplicating machine,v the coinduplicating machine, the coin-.'

fbination with ,a revoluble(cylinder, of an v ink-fountain rotatably. 'shiftable upon its axis Within'vsaid.. cylinderfsto'p means arranged upon vthe'` exterior o-f the fountain,

v,a stop-engaginginemberico-operating With said stop means to secure the gri-fountain against movement Whenyshifted toV one rof let opening in the side Wall:thereof-,a sealeffective to prevent excess ink from spreadwk ing over the exterior Walls ofthe fountain when the same vhas been inverted to Vnoninking position;

its. positions, said fountain having an out-v .n

l ing deviceV inountedgfor movement adjacent 1 EDWARD anovvniir.V y

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