US1468724A

US1468724A - Can-forming mechanism

Info

Publication number: US1468724A
Application number: US461274A
Authority: US
Inventors: Mauck Victor
Original assignee: JOHN WOOD Manufacturing CO
Current assignee: JOHN WOOD Manufacturing CO
Priority date: 1921-04-14
Filing date: 1921-04-14
Publication date: 1923-09-25
Anticipated expiration: 1940-09-25

Description

ep, 25 9 E23.

V. MAUCK CAN FORMING MECHANISM Filed April 14, 192ml 3 sheets-sheet 1 NVENTOR l/lcro? /l/Quck,

Sept. A25 ,k 1923.

V. MAUCK CAN FORMING MECHANISM Filed April 14, 1921 3 SheatswSheet 2 Mmmm Q V. MAUCK CAN FORMING MECHANISM Filed April 14, 1921. 3 SheeS-Sheet 3 k! NVENTOR:

Patented Sept. 25, i923. i

: eTeS PATENT GFFEE.

VICTOR MAUCK, OF NORBISVTOWN, PENNSYLVANIA, ASSIGNOR TO JOHN WOOD MANU- FACTURING COMPANY, OF CONSHOHOCKEN, PENNSYLVANIA, A CORPORATION OF PENNSYLVANIA.

CAN-nonnina MECHANISM.

Application led April 14, 1921. Serial No. 461,274.

T 0 all whom t may concern.'

-Be it known that I, Vlo'ron MAUCK, a citizen of the United States, residing at Norristown, in the county of Montgomery and State of Pennsylvania, have invented certain new and useful Improvement in Can-Forming Mechanism, -whereof the following is a specification, reference being had tothe accompanyingdrawings.

My invention is especially designed and adapted for the formation ofV cans used in the transportation and storage of ice cream. Such cans are used by wholesale manufacturers to deliver ice cream, water ice, frozen custards, etc., to retail dealers,and are used by the latter as containers for such products while they are being dispensed; the emptied cans being thereafter returned to the whole- Salers to be refilled and again distributed. Therefore, such cans must be extremely durable to withstand the repeated rough handling and consequent extreme stresses and wear to which they are inevitably subjected by such hard usage.

Moreover, as cans charged with such perishable commodities must be retained in ice water or other refrigerant liquid, their bodies must be permanently liquid tight,

`and, in order to prevent contamination of their contents, they must be adapted to be` instantly opened and closed to facilitate disl pensation of their contents. Furthermore, as it is customary to dispense ice cream and similar products by means of substantially hemispherical measuring scoops; such cans must be so designed that substantially all of their contents may be readily -removed by such scoops.

Therefore, the obiect and effect of my invention is to provide cans having the characteristics above contemplated. However, it is to be understood that I do not desire to limit my invention to such specific use.

The process of making cans herein disclosed is claimed in my copending application Serial 542,742 filed March l0, 1922, for-Letters Patent of the United States.

Inthe drawings; Fig. I is a perspective view of a can embodying my invention and provided with a removable lid closure.

Fig. II is a vertical sectional view of the can and closure shown in Fig. I, showing the substantially' sealed relation thereof.

Fig. III is a perspective view of a sheet metal cylinder' which is the blank from v whichv the body of the can shown in Figs. I and II is formed.

Fig. IV is a perspective view of a cylindrical ring of sheet metal which is the blank adapted to form the flange to support and seal said lid closure on the can body.

Fig. V is an elevation of the ring shown in Fig. IV, but partly expanded toward its linal flanged form. y

Fig. VI is an elevation of the partly formed can body with the completed flanged ring fitted upon the top thereof; the bottom of said body being flared to receive the bottom plate.

Fig. VII is a diametrical sectional view of a bottom plate adapted to be fitted in the liared end of the can body shown in VviewA of said can body and bottom plate,

similar to Fig. VIII, but showing the rim of the bottom plate partially spun over the bottom of the can.

Fig. X is a fragmentary, sectional view of substantially full size, showing the joint between the can body and the bottom plate as it exists in a finished can.

Fig. XI is a plan view of a spinning lathe and its appurtances embodying my improvement in can forming mechanism.

Fig. XII is a front elevation of the mechanism shown in Fig. XI.

Fig. XIII is a fragmentary vertical sectional view of the yoked differential plungers and their casing, indicated in Figs. XI and XII, whereby said expanding and supporting mandrel is advanced, to expand the can body in its flange ring, held in such advanced position during the operation of spinning the rim of the bottom plate over the can body, and subsequently retracted to free the can.

Referring to Figs. I to X inclusive, which show a convenient form ofice cream can constructed in accordance with my invention; the can body 1 having the removable lid closure 2, conveniently provided with CII ' and VIH.

ting edges 9 to constitute a blank frei-n which may be formed the flange ring 10,

as a lixture upon said canbody 1, as indicated' in Figfll, to support said'lid closure 2 and` substantially hernietically seal the joint between .the bottoni edge ot said closure and the can, when in the position shown in Fig. Il; Said flange ring blank expanded, by a Apressing operation, vtrein theV cylindrical torni shown in Fig. Fito-the forni shown in F ig. V "then pushed upon said4 cylindrical can blankx until its upper edge is flush. with the top ot the latter. Thereupon,` the .expanded skirt 11 ot" said ring blank 10 is pressed inwardly, against said blank 5 until it is curled to lorin'thc toricbead 12indicated in Figs. l, ILVVI blank o. However, l subsequently expand said can blank5 within said flaiige'ring 10,

slightly stretching the. metal of both otl said parts, to insure that they shall there-V at'ter remain iii intimate contact. Such expansion is, conveniently effected by'thrust ing the mandrel 13 into said blank 5,A as indicated in Fig. VIII.

. l-lowever, during the aforesaid operation of forming saidbead 12 upon said can body .5; l tind itconvenient to expand the botvtom edge of said blank 5 as indicated at 14' in Fig. V1, so that said blank will readily fit over the bottom plate15 as shown in ing. viii.

Said bottom plate V15 is also formed trom primarily flat sheet metal, by pressing operations which tirst'cut a circular disk ot such metalfand then distort it to the cylindrical Y forin shown in Fig. VH. lt is to be particularly noted that the circumferentialedge 16 oit the cylindricalV portion 17 otsaid bottoi'n plate 15, which is presented upwardly in the can against'the inner tace of the cylindrical wall of the latter, as shown in Figs. 17H1, 1X and X, issubstantially sharp so that there is no crevice formed at the liunction Vof said blanks 5 and '15. The lared lower edge 1li-fof said 4blank 5 is-then constricted upon said cylindrical portion 17 ofthe bottom plate, as shown inFig. VH1.

Yrlhereat'ter, 'the primarily plane annular iange 18 -o't said bottom plate 15 is bent over the adjacent edge ot said can body blank 5, lirst,as indicated in full lines inV That pressing operationV con-A stricts said ring bead 12 upon said canl F ig. IX, and, linally,to the form shown lin Fig. X wherein said annular ange 18 of the bottom pl-ate 15 is cylindrical and in Contact with the outer surface of the cylindrical wall ot the can body 1; the cylindrical portion 17 ot' said bottoni plate Vbeing., likewise in contact with the innerrsur- ,tace ot' said cylindrical wall of the can body 1. V.iis hereinafter described, l find it convenient to thus distort said; bottoni plate flange 18Vwhilespinning itV upon the mandrel 19 held under pressure -in opposition to said mandrel 13; while said inandrels 13 and 19 are rotated in coaxial relation. Y

Finally,y said can body l is coated, all over, witha iilm ot some material capable of resisting the corrosive eliect of water upon the `terric metal parts of the can above described. For-instance, I find it Y'convenient to coat the Vcanwith such a nlm 2O ot block tin, as indicated-in F ig. X; so that the 'entire surfaces of Vsaid can 1 and its closure 2 are smoothly continuous and, .con-

sequently, may be Areadily cleanedyby wash ing them.

lilthouh there are various novel features l Y of procedure in the construction of the can above described; the claims in this case are limited to thednechanisin and Aprocess whereby the top of the can blank 5 and its ring 10 are expanded, and the bottom of the can constricted upon its bottom pla3te-15 and the flange 18 of the Vlatter constricted upon said can bodyas above described.

Said mechanism is shown in Figs. Xl and XH, wherein 2115 the base frame supportin the stationary headstock 22 having

bearings

23 and 24 for the spindle 25 carrying the pulley 26. Said pulley is mounted to rotate loosely upon said spindle but inay be rigidly connected therewith bythe clutch 2T which is operable by the V li-and lever 28. Said spindle v25 carries at its inner end said mandrel 19 Vabove describedwith reference to Fig. Vil-l."

Said base trame 21 also supports the Vtail stock 30 which'mav beadjuste'd thereon by means otrtherv hand wheels 32'aiid 83 but, -tor the purpose herein contemplated, Vsaid tail stock 30 remains in stationary position upon said base frame; y Y A Said tail stockfSO has the bearinre's`35 and 36 ,tor the thrustplunger 37-which carries at its front end the Vidle spindle 38 upon which said mandrel abovedescribed with reference to Figi. VIH, is rotatable. As shown in Fig-.'XHI; said thrust plunger 37 extends throughthe stuiting box 4.0 into the chamber '-11 in the casing 4t2 and may be thrust forward under pressure ot. water or other lmotor fluid/admitted to said chamber Lt1. Said casing '4t2 has, in axial alinement with-saidchainber 11. a second chamber, 43, which is slightly smaller in Vdiameter than said chamber 11 and in whichl the retractioo ll O

i io

i oV

' press the same inwardly to cylindrical forni i and in Contact witlithe cylindrical portionV 17 o1n the bottom plate l5, as indicated inY Fie. VH1. Thereafter, theo erator ma- Vnipulates said Wheels. TGand 80 so as to Ycause said spinning roller to bend said ilangc 18, of the bottom plate 15, from the plane shown in dotted lines in F 1g. 1X, to the 1n- V-clined position shown in lull lines infF ig.

, and proceeds to spin said flange 1 8 to the cylindrical 'form shown in F X, in con- 15.'

tact with the outer surfaceot' said blank 5, thus completing the spinning operation.V

Thereupon, in order to release the can,

thus completed, from its engagement with' the mandrels 13 and 1911s shown in Fig. VIH; the operatorshifts the handle 56 of the valve 5a so as to establish connnunica-V Vtion'.between the chamber il of the thrust plunger 37 and the exhaust pipe 54. l/Vhere- A upon, the fluid pressure remaining upon Vthe 2li retracting plunger l5 retracts fthe latter, with said thrust plunger 37, to withdraw -V said mandrel 13 from the can and permit.V fthe latter to be manually removed from said mandrel 19. Thereafter,.the can thus ,com-

pleted may fbe coated with a lcomposition adapted to lresist corrosion, and be provided with a lid 2, as above contemplated.

Therefore, it may be observed that the mechanism shown in Figs. XI to XHI inclusive'has the capacity for operation both as a press and as a spinning lathe, and I do not desire lto limit myselfthercto or to the particular method of operation thereof above described, as, of course, it mayi be otherwise used. Moreover, it isobvious that lmodifications Vmay be made in the various details of construction and arrangement of the mechanism, Without departing from the essential 'features ot myn invention, as dened in the appended claims. V -5 'Ic,lai,m:VVV Y V l. The combination with a base trame; of

aVVhe'adstocl; mounted Y on said trame; a

spindle journaled Vin said headstoclr; means arranged to. rotate; said spindle, including a loose pulley and a clutchinovable to connec't and disconnect said pulley and spindle; a mandrel on said spindle adapted to hold afcan bottom plate; atailstocl: on said base frame; a thrust plunger mountedV to -re-V ciprocate' in said tailstocln-in axial aline- YV ment'with said spindle; a mandrel mounted to rotate at the inner end of said thrust V plungerand" arranged to engage the top of a 1 can; a plunger casing stationaryv onV said tailstock, having a thrust chamber in which saidthrustplunger is mounted to reciprocate, and a port opening intoy said Vthrust chamber; said plunger casing alsoV having a retracting chamber7 in axial .alinement with said retractingrchamber; means yoliing said f tivo plungeis for simultaneous reciprocation, s V

including cross heads on the respective plun-V gers and tension rods adjustablyY rigidly 'con-V 'Y necting said cross heads; saidthrust plunger being` longitudinally adjustable With respect to said retracting plunger, and having .V Y

means arrangedftosecure itinadjusted position, including a nut engagingsaid thrust plungerV and abutting against its cross bar;

and .respective valves independently operableto admit and exhaust fluid throughY said ports; whereby saidV tail mandrelmay beVVV tirust toward said headA mandrel, to engage..V a canbody between them, and be retracted tof release said body.

I 2. rlhe combination with abase'frame; of

a heads'toclrmounted on saidframe; a

-spindlejournaled in said headstocl; means arranged to rotate said spindle; a head mandrel on said VYspindle adaptedto holda can bottom platevya .tailstoclr'onV Vsaid 'baseVV frame; a thrust plunger mountedto reciprocate in said tailstock, in axial Valinem'ent V.

with .said spindle; a tailV mandrel mounted, to rotate at the inner end of said thrust plunger and arranged to engage the" topA of af can; a plunger casing onr'said tailstock, having aVV thrust chamber Vin Which said thrust plunger i'smouted toi reciprocate, and a port opening intosaid thrust'chain-V ber; said Vplungerj casing also having a retractingchamber, in axial alinement VWith:A VV

said thrust chamber, but of smaller diameter and separated therefrom, anda port-opening Ainto saidretractingchamber; a retracting plunger mounted to reciprocate in said retracting chamber; means yoling said two plungers for simultaneous reciprocation, including cross.V headsron Vthe 'respective' plungers and tension rods Vadjustably rigidly connecting said cross heads; VsaidJtli'rust plunger beinglongitudinally adjustable lwith Vrespect to saidretracting plunger, and hav-V ingfmeans arranged to secure it in adjusted position; and valve means operable to ad-V mit and exhaust Huid through saidVrports;

whereby said tail mandrel may be-'thrustA toward saidhead mandrel, to engageacan V V body between them, and be retracted to release saidbody. Y .V

3. The combination Withfa base Vfreine; of a headstock Vmounted on 'said Aframe;V a0 spindle journaled in said headstock; means arranged to rotateV said spindle ;V af'rhead Vmandrel on saidspindle; a Vtailstock on said base frame; a thrust plunger mounted to mountedV touotate at theinnerVend of said tailstock, having a thrustfchamber in which;

lreciprocate in saidtailstocl; a tail:mandrel`YV V thrust plunger; a Y plunger casing on said -V is() .Gil

C li

said thrust plunger is mounted to reciprol cate, and a port opening intosaid thrust chamber', said plunger casing also having al reti-acting chamber, and a port opening into said retracting chamber; a .retracting plunger mounted to reciprocate in said retracting chamber; means yolring'said'` two plungers for simultaneous reciprocation; and valve means operable to admit and exhaust fluid through said ports; whereby said tail mandrel may be thrust toward said head mandrel, to engagea can body between them, and be retracted to release .said body- 4. T he combination with a base iframe; of

a headstock mounted on said frame; a rotary spindle journaied in said headstock; a head mandrel on said spindle; a tailstock on Vsaid base frame; a thrust plunger mounted to reciprocate in said tailstock; a tail mandrel mounted vto rotate at the inner end of said thrust plunger; a plunger casing on said tailstoclr, havingl a thrust chamber in which said thrust plunger is mounted to reciprocate, and a port opening into said thrust chamber; said plunger casing also having a retracting chamber, and a port opening into said retracting chamber; a retracting plunger mounted to reciprocate in said retract-ing chamber; means yolring said two plungers Jior simultaneous reciprocation; and valve means operable to admit and exhaust fluid through said ports; whereby said tail mandrel may be thrust toward said head mandrel, to engage a can body between them, and be retracted to release said body; 5. The combination with a base frame; of

a headstock mounted on said frame; a head spindle journaled invsaid headstoclr; means arranged to rotate said spindle; a tailstock on said base frame; a thrust plunger mounted to reciprocate in said tailstocln'toward and away from said head'spindle; a tail spindle mounted to rotate at the inner end or" said thrust plunger; a plunger casing on said frame, having a thrust chamber in which said thrust plunger is mountedto reciprocate,V and a port opening into said thrust chamber; said plunger casing also having a retracting chamber, and a port opening into said retracting chamber; a retracting plunger mounted to reciprocate in said retractingchamber; means yoking said two plungers for simultaneous reciprocation; and valve means operable to admit and' exhaust iiuid through said ports; whereby said tail spindle may be thrust toward said head spindle and be retracted.

G. The combination with a base frame; of a headstock mounted on said frame; a

Y spindle journaled in said headstock; means arranged to rotate -said spindle; a head mandrel on said spindle; a tailstoch` on said Vbase frame; a thrust plunger mounted to reciprocate in said tailstocki; a tail mandrel mounted to rotate at the inner end of said thrust plunger; a plunger casing on said tailstoclr, having a thrust chamber in which said thrust plunger is mounted to reciprocate, and a port opening into said thrust chamber; said plunger casing also having a retracting chamber, and a port opening into Vsaid retracting chamber; a retractiugr plunger mounted to reciprocate in said rt iacting chamber; means yoking said two plungers for simultaneous reciprocation; and waive means operable to admit and exhaust fluid through said ports; wherebysaid tail imandrel may bethrust toward said head mandrel, to engage a can body between them and be retracted to vrelease said bedr; a sp ning roller, mounted to rotate ou an parallel with the common axis of said mandrels; and means, on said base frame, arranged to shift said roller, includinfg a shaft carrying it, a longitudinal slide, carrying said shaft and having screw means arranged to more it axially, and a cross slide` barrying said longitudinal slide and having screw means arranged to move said shaft toward and away from said mandrel axis; said slides being capable oi' simultaneous movement.

7. The combination with a base frame; of a headstock mounted on said trame; a rotary spindle journaled in said headstock; a head mandrel on said spindle; a tailstock on said base trame; a thrust plunger mounted to reciprocate in said tailstock; a tail mandrel mounted to rotate at the inner end or" said thrust plunger; a plunger casing on Vsaid tailstock, having a thrust chamber in which said thrust plunger is mounted to reciprocate, and a port opening into said thrust chamber; said plunger casing also having a retracting chamber, and a port opening into said retracting chamber; a retracting plunger mounted to reciprocate in said retracting chamber; means yolting said two plungers for simultaneous reciprocation; and valve means operable to admit and exhaust fluid through said ports; whereby said tail mandrel may be thrust toward said head mandrel, to engage a body between them, and be retracted to release said body; a spinning roller, mounted to rotate on an axis parallel with the common axis ot said mandrels; and means,on said base frame, arranged to shift" said roller, including a shaft carryingV it, i a slide,` having screw means arranged to move said shaft axially, and a cross slide, having screw means ar- .ranged to move said shaft toward and away `for simultaneous reciprocation; and valve means operable to admit and exhaust fluid throughV said ports; whereby said tail spindle may be thrust toward saidV head spindle, and be retracted; a spinning roller; and slide means, on said base trame, are ranged to shift said roller, longitudinally and transversely. Y 9. The combina-tion with a base frame; ot a headstoclr mountedon said frame; a rotary -spindle journaled in said hcadstock; aftailstock on said base frame; a thrust plunger mounted to reciprocate in said tailstock; a vtail spindle mountedY to rotate at the inner end of'said thrust plunger; a plunger casing,

having a thrust chamber in which said thrust plunger is. mounted Vto reciprocate, and aport 4opening into saidfthrust chamber; said plunger casing also having a retracting'fchamber, and a port opening into'Y said retracting chamber;V a retracting plunger mounted to reciprocate in said retractingA chamber; means yoking .said -tvvo plungers for simultaneous reciprocation;

and valve means operable'to admit and e-z- Y haust fluid through said ports;` whereby said tail spindle may bethrust toward sai-d head spindle, and be retracted; a spinning' roller; Vand manually operable .meansj on said base frame, arranged to shift Vsaid roller toward and away from said spindles.

ln testimony whereof,` I have hereunto signed my name at Conshohockem Pennsylvania, this 5th day of April, 1921.

Vieron Manoir,

Witnesses:

- ANNA T. SCHARFE, 4JULIA T. Maynas.