US1407104A - Wiping mechanism - Google Patents

Description

N. WALKER.

WIPING MECHANISM.

APPLlcATmN man 1v1/111.1, 1921.

Patented Feb. 2 1, 1922;.`

A N. WALKER.

WlPlNG MECHANISIVI." APPLICATION FILED MAR.1,192|.

1,407,104, l rammed Feb. 21,1922.

4 SHEETS-SHEET Z N. WALKER.

WIPING MECHANISNI. APPLICATION FILED MAR. I, 1921. y

Patented Feb. 21, 1922.

III. s a M, w

N. WALKER:-

WIPING MECHANISM.

l APPLICATION FILED MAR-1,1921. 1A,4O'7,104 Patented Feb. 21, 1922.

4 sHEeTs-sHEET`4.

ToaZZwLor/i t may concern:

",WIPINGMECANISMQ Liomoi.

Be it kno-wnthat I, NOAH =WALKER, izen of the .United States, residing at Phila-l delphia, in the 'county of Philadelphia. and State of Pennsylvania,-have invented cerfl'ftain newand useful 'Improvements in Wip- `'fitially supply a slightly greater quantity of.v

"cannot be depended upon to be uniform.'

ingv Mechanism, of which the following isl a l.

specification. l y y .In filling jars 'th plastic material, such as y coldI cream, it; is usually the. custom to in# the materialto thejars than they yare capable of holding, when the lids are applied, and then'wipe the excess material fromsthe tops so that the material at the top will be smooth `and flush Iwith the tops of'the jars. .This

wiping. process prior. tol niy'present invention has beendone by hand and is not commercially satisfactory for the reason :that it is slow and tedious .and the Aresulting work Furthermore the handwipingoperation requires numerous individual handling of the jarsand'is as a whole expensive.

One object of' my invention is to provide an improved mechanism which can be used independently of orf in connection .with a machine for filling .jars with plastic material and williiserve'to quickly anduniformly wipe the excess material from the".

'tops of the jarsand to smooth the top oir the material remaining inlthe jars.

Another object is to construct my im-.

proved mechanism so'that it will simultaneously" and successively wipe and smooth a l plurality of jars and soA that rows oi filled j ars can be fed thereto and wiped.

i 'A further Objectis to make my invention of a durable and strong construction.

These objects and other advantageous vends which willv be described hereinafter, I'

attain in the following manner, reference being had to the accompanying drawings in which;

Figure 1 is a'topplan view showing my improved mechanism,

taken on the line '6 6 of Figure-3.

vFigure 2 is a transverse sectional elevation taken on the line 2-2 of Figure 1, t

Figure 3 is a side elevation looking in the direction of the arrow m in Figure 2,-

F igurev fis a side elevation looking in the direction of the'arrowy in Figure 2,

'Figure- 5 is a f sectional elevation taken on the line 5;-5 of Figure 4, 1

Figure 6 isa Afragmentary enlarged section a cite' ranged parallelfand' spaced yapart plate 11 arranged between theside 'rails and i in the present instance this bed fplatef is fixed 1 offjars 12'; 5.

l Ebizlyilzuf: f iippiicatpioniedgiviareh 1521921. serial Na 1448374;

Figure 7 is a 4sr-i'ctio'nal'elevation@taken'fonf y the line 7+7 of .Figure 5 Y parts. moved' into a 'position 'to wipeexcess* of thematerial fromthetopsof arofwlo'f ,the

vind showing the jars and to's'mooth thevmaterial sothat'ther upper surface of the material twill' with the tops of the jars, and '71; A

l? igure 8 is `a fviewof the same' general character as-that shownfin Figure 7 with theE wiping members having beeiifmoved intda* position so as. .toV discharge Vthe excess `maj-` teria-l into a trough shape weep-md5; f-

supporting frame having vside rails lOaif and serves as afsupport for' rows said rows extending transversely of the bed plate; thebed plate 4having side flangesl'?)l so as to form aV shallow channel overwhich thevl l rows of jars 12 are moved by a conveyorlzi'; said conveyor in the present instance including chains 15.spacedap`art and having 'con-- pu'shv bars ".16 located betweenfnected thereto transverse one of these Apush bars being each row of jars'12'and `serving to: push'a'nd keep in straight alignment the j as they-fv are' edout of a filling machineorv from' any other location, said conveyor in the present l instance hasan intermittent'motion-fand may e mechanismfnot 1' be driven iby lany suitabl illustrated. --1 -.f i'

The. side i rails Y 10 v-iorni the lrespective mountings for two .bea-rings 17; said 'bear-fA ings havin by anyV suitable mechanism vandin the pres-jf ent instance, ther drive forthis shaft'con'sists f of a sprocket. wheel 21and1a1drive chain 221 in operative engagement :with saidjzsprocket wheel. rlhis chainl 22jmay be drivenfrom kany 'suitable source of power; l The shaftl"l has Vadjustably secured thereto, twosets 23'- and 24 of arms arranged at anvangle toea'clrV as clearly shown ini Figures 1l and7;

The set of arms23 has secured thereto, Y rigid strips of material v'betwe'enwh-ich are',A

clamped one edge portion-oi'- a strip-T251 of which is clamped the edgefportio'nV of a Hex-f ible resilient strip l26k preferably of tough rubber. These strips 25 and 26 are normally straight and substantially V`radial with the axis of the shaft'19, as shown at the upper portion of Figure 8 of the drawings. These l strips 25 and 26 during the action of the mechanism as will be hereinafter described,

are moved one after the other into engage- :25v serving to remove the major portion Vof the excess material while the strip 26 serves more as a smoother for the material remaining in the jars.

The shaft 19 has a gear wheel 27 secured thereto; said gear wheel meshing with another gear wheelV 28; the latter bein freely mounted on a portion 29 'of the sha t 20 as clearly shown in Figure 6. A sprocket wheel 30 is secured to the gearwheel 28 and a chain belt 31 connects this sprocket -wheel 30 with a.V small sprocket pinion 32 on aroller 33' of small diameter. This roller 33 has bearings in two arms 34 which are vse,- cured to the shaft 20. One of the arms 34 V,has an anti-friction wheel 3,5 rotatably mounted thereon and adapted to engage a cam 36 which is secured to the shaft 19 as clearly shown in Figures 7 and 8. brackets v37, which are secured to the shaft 20,7support an overhung weight 38; said weight serving to hold the wheel in con-k tact with the cam 36. It is thus obvious that during the rotation of the shaft 19, the

. cam 36, due to engagement with the antifriction wheel 35, will swing the roller 33 downwardly in an arc concentric with the axis of the shaft-20. `l/Vhen the low portion of the cam 36 is brought into engagement with the anti-friction wheel 35, the overhung weioht 38 will act to swing the roller 33 upwardly; thisaction taking place during the operation of my mechanism for a purpose hereinafter described.

A smooth plate 39, which has a forward concave surface, isl secured to the brackets 37 and is positioned between the arms 34; the lower edge of the plate 39being parallel with; and, nearly touching they roller `33, as

clearly shown in Figuresy 7 andy 8. The for-v ward concave surface of the plate 39 is. sufficiently close to the shaft 19 that the flexible resilient strips 25 and 26 during their Vrotation are compelled to be flexed due toV thel contact of said flexible vresilient strips f with the concave surface of the plate 3 9; the

strips 25 and 26 also being compelled to. engage the roller'33 between the jars and the plate 39. The position of the parts isy such that when the roller 33 is in itslowermost position it willv occupy a, position directly adjacent the rear parts of the tops. of, the

jaws so thata Portion of the roller, 33 is Two Y above and another below the top edges of the jars of the rows to the rear of which the roller is positioned.

The timing of the parts is such that when the conveyor 14 moves forwardly, the roller 33 will be raised to permit a row of the` jars to pass thereunder and willth'en be lowered action. It will be noted that the tops ofthe jars are in the path of rotation of the flex-f ible resilient strips 25 andl 26 so that the strips 25v and 26. will flex as they are passing over the topv edge of the jars. Y

A. transversely extending ytrough 140 is supported transversely above the bed plate 11 by posts 41 which are slidable in housings 42; said housing .having springs 43 therein upon vwhich the posts 41 rest. A The springs may be adjustably movedrin Ythe housings by means of adjusting. screws 44 as shownin Figure 5. The trough 40 has' its rear side 45 arranged uprighty and its fors ward side 46 slanting; the upper edge of the side 45 being in the path of movement of the flexible strips 25 and 26.

The operation of my improved mechanism. is as followsz-The conveyor 14 operates to intermittently move rows of the jars forwardly and, as each row of ars reaches the position under the shaft 19, the roller 33 will be lowered as above described and the flexible strip 25 will first engage the top edges of the jars of said row and wipe off the major portion of the excess of the plastic. material. The plasticl material undernormal temperature conditions will adhere to the strip 25; the roller 33 and plate 39 serving to prevent the plastic material` from the strip 25 from falling off while the strip is in Y a downwardly extending position. ln other words, the roller 33 and plate 37 serve as u wall against which the outer portion of the plastic material on the strip 25 slides during the rotation of the shaft 19. The constantly rotatingroller 33', if any of the ma-. terial should escape from the strip 25 andslide downv upon they plate, willserve to redeposit that material upon the plate 391V so that when the strip 2,6 engages the rol-ler and plate, it will pickup the accidentally dropped portion vof the material and convey it upwardly.

'It will; be noted that since the strip.'25 wipes the major portion, of the excess mate-1 rial from the jarsfthat thestrip 26'hasV a. better chance to smooth the material since` the adhesion of the material is not so kgreat as when a large body of the material is wiped from the top. The'strips 25 and 26 'after leaving the plate 39 continue in their rotatable path and wipe against the top edge of the side 45 of the trough 4:0 and deposit and are stripped of thevma-terial so that the material from the flexible strips 25 and 26 is received-.in the trough 40. When this trough becomes full the mate-rial can be removed easily by the attendant placing ascraper and dragging the material out of the end of the trough and this material can aga-in bev put in the filling machine or disposed of in any desired manner.

In actual practice it has been found that there is practically no possibility of the material,'which is wiped from the tops of the jars, falling or running down over the outside of the jars even in warm weather and when the mechanism is operating on .jars filled with cold cream or the likethe roller 33 serves as a guard so that if any mate-v rial accidentally escapes from the iexib-le strips and slides down on the plate "39, it

will be compelled .to Vpass in contact withv the upper surface of the roller 33 which ro-v tates toward the plate 39 and thereby keeps i the material in contact with the' plate 39 until one ofthe strips 25 or 26 moves around to pick. up the material. :By having the trough 40 resiliently mounted on the springs i3 the action is not severe on the flexible itrips 25 and 26.

While I have describedL my invention as taking a particular form, it will be under stood that the various parts of my invention may be changedwithout departing from the spirit thereof, and hence l do not Vlimit myself vto the precise construction set forth, but consider that lam at liberty to make such changes and alterations as fairly'come withinthe scope of the appended claims.v Y

Having thus described my invention, what I claim as new and desire to 'secure by LettersPatent is zf l; Mechanism for removing excess material from jars including wiping means; means for effecting relative movement between the jars and wiping means whereby the excess material is transferred to the wiping means; and means co-operative with said wiping means for stripping said material therefrom; substantially as described.

2. Mechanism for removing excess material from jars including a movable flexible member for wiping engagement'wit'h'the' tops of the jars whereby the excess material is separated from material in the jars; and means for stripping said excess material from said member during movement of said member; substantially as described,

3. Mechanism for removing excess material from jars including a rotatable flexible member for wiping enga-gement with the tops of the jars whereby the excess material is lifted from the jars on the flexible mem- AportionA of said scribed* ber; and a receptacle for stripping engagementwith said member tov receive said-excess material; substantially as described.- f

4L. Mechanism fori'fremoving excess material from jars including a rotatableflexible member for wiping engagement with the member engages in passing from thej ars to said receptacle; substantially as described.'

5. Mechanism for removing excess material from jars including a rotatable exible member for wiping engagementk with the tops of the jars whereby the excess material is lifted from thejars on the flexible mem-il ber; a receptacle for stripping engagement with said memberto receive said excess material; and guard means vwithvwhich said member 'engages inpassing from the` jars to said receptacle, said guard'means including a `plate and a roller adjacent the lower plate; substantially ras de- 6. Mechanism for removing excessmaterial A fromjars including means adapted't'o-be positioned in close proximity to the top edges'o'f the' jars; and. wiping means for wiping. the excess material ,from said jars v into contactfwith saidlirst means y'whereby said iirstfk means serves as Va supportfor lsaid excess material; substantially as de- Vscribed. Y 'l 7.` Mechanism for removing excess yina-4 terial. fromjars including meansiadapted ico to be positioned in close proximity tothe top edgesiof the jars;' wiping means. for wiping the excess material from saidjars into contact with said vrstmeans,whereby said first means .servesy as. a support for said excessmaterial `during the 4 wiping movement of said wipingvmeans; and a ie- 'ceptacle in which said excess materialA is deposited; substantially, as f described, l

8. Mechanism for wiping excess material from jars includinggmeansadapted' tol be positioned in close proximity to thel tops of the jars; rotatable wiping means adapted to wipe the excess material olf the tops of said jars and push it upwardly over said first means whereby said first means prevents the excess material` fromifalling off said wiping means jduriiig a portion of its travel; and a receptacle located in the path of movement of said wiping means intoY which the excess material is deposited; substantially as described. i

9. Mechanism for wiping excess-material positioned in close-proximity to the tops of the jars; rotatable wiping means adapted to wipe the excess material off the tops of said jars and'push it upwardly over said l l from jars including means adapted to be-` iso ' vents the excess material first means prefrom falling off said wiping means during a portion of its travel, said first mea-ns being movable after first means whereby said .said wiping action into a position above the tops of said jars; and means for feeding other ars, to be wiped, into the path of action of said wiping means, said first means being operative to be lowered into said iirst- .mentioned position relatively to the second mentioned jars; substantially as described.

l0. Mechanism foil removing excess material from jars including two shafts; wipring means connected to one of said shafts; means for rotating said latter mentioned shaft; mea-ns for rocking the other shaft, said latter mentioned shaft having a con'- cave plate thereon; a driven roller adjacent the bottom of said plate whereby when the second mentioned shaft rocks, the roller will be moved into positions directly adj acent the rear and top edges of the ars and out 'of the path of said jars, said wiping means being adapted tofwipe said excess material trom the jars and convey itV over said plate; and a receptacle into which said wiping means discharges said excessI material; substantially as described,

il. Mechanism for removing excess material from jars including two shafts; wiping-means connected to one of said shafts;

means for rotating said latter mentioned shaft; means for rocking the other shaft,

said latter mentioned shaft having a concave plate thereon; a driven roller adj acent the bottom of said plate whereby when the second mentioned shaft rocks, the roller will be moved into positions directly adjacent Vthe rear and top edges of the .jars and out :of the path of said jars, said wiping means 'being adapted to wipe said excess material from the jars and convey it over said plate; and a receptacle into which said wiping means discharges saidV excess material, said means for rocking the second mentioned shaft being driven by said first shaft;

Ysubstantially as described. j

l2. Mechanism for removing excess material from jars including two shafts; wiping means connected to one of said shafts; means for rotating said latter mentioned shaft; means for rocking the other shaft, said latter mentioned shaft having a concave plate thereon; a driven 'roller adjacent the bottom of said plate whereby when the second mentioned shaft rocks, the roller will be moved into positions directly adjacent the rear and top edges of the jars and out of the path offsaid jars;V said wiping means being adapted to wipe said excess material from the jars and convey it over ,"a`d plate; and receptacle into which aid wiping means discharges said excess material, said means for rocking said shaft consisting of a cam on said. first shaft, a portion connected to said rock shaft for engagement with said cam, and a counterweight for keeping said portion in engagement with said cam; substantially as described, i

llliechanism for removing excess ina-l teriai from the .tops of jars including rotatable wiping means for engagement with the excess material; a concavel plate extending upwardly and over which said `wiping means moves said excess material during :its upward travel; and a receptacle positioned in the path of said wiping means for stripping said mate-rial therefrom; substantially as described. i

le. Mechanism for removing excess material 'from thetops of ars including movably mounted wiping means for engagement with the excess material to wipe itvfrom the jars; and a resiliently supported receptacle in the path of movement of said wiping means for receiving the excess material therefrom; substantially as described.

in testimony whereof I 'have signed my naine to this specification in the presence of two subscribing witnesses.

Noni-r WALKER.

lVitnesses Y ELIZABETH Gonna, CHAs. E. Po'r'rs.

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