US1588057A - Method of making spoons - Google Patents

Description

DELPHIA, PENNSYLVANIA, A CORPORATION QF VIRGINIA.

AMERICA, F IHILA- 'i METHOD or "MAKING sPooNs.

Application led January 12., 1925. 'Serial-UNo.f1,7'79.v

' l This invention relates to the manufacturel of lspoons and similar table utensils from tin plate orother sheet metal stock, and has for its object the production cfan inexpensive article of the character referred to, solely by thel blanking out and die forming process,

and'rigidity to perform its intended function in a 'satisfactory manner, and which ,will have no sharp edges to cause injury to the mouth `or hands of the user.

The foregoing andyother objects `of the in- Y vention willv best be understood from the following description of one embodimentl thereof and the method of producing the same, as

illustrated in the accompanying drawings.

It will be understood, however, that the par' ticularl construction, operations, appliances, and material described yandshown have been chosen for illustrative purposes merely, and that the invention, as defined by the claims hereunto appended, may be yotherwise embodied and practised without departure from the spirit and scope thereof.

In said drawings: y l

Fig. 1 is a simplified sectional'viewof the punch elements for'blanking out thearticlesf from the sheet metal'stock. v l "Fig 2 isa plan view of'one of theblanks produced by the punch elements shown in Fig. 1. f

Fig. 3 `is an enlargedl section on theline` v -handle 26 substantially U-shap'ed in cross vset of dies for shaping a blank such as 'that` shown in Fig. 2'intoi`the form of a spoon.

Fig. 5 is a plan view of a spoon 'formed by the dies shown'in Figui.v

Fig. 6 is an enlarged section taken substantially on the line 6,-6, Figf. f

Fig. 7`fis ya view similar to Fig. 4 of dies arranged in accordance with one feature of the present invention.

Fig. 8 is an enlarged and inverted trans- ,e

verse section, taken substantially on the line 8 8, Fig. 7, yof the spoon formed by the Adies shown in the latter figure.

Fig. 9 isa similar View on the line9-9, Fig. 7, illustrating a hypothetical construction. 'f

Fig. 10 is a transverse section, taken substantially on the line 10-10, Fig. .7, of the dies shown in the latter figure.

Fig. 11 isa plan 'view of a spoon produced by the dies shownv inFigs. 7 and 10.

Fig.l 12 is a: section on the line 12-12, Fig. 11. f' f In the manufacture lof sheet metal'table ware, the tin plate or other sheet mctal'stock 1 5 (Fig. 1) is passed between blanlringout dies comprising a reciprocating punch 16 and a cooperating hollovs7 punch die v17 which operate to punch from said stock blanks 1S of the'proper configuration, as shown, for eX'ample,`jin Fig. 2.

Fig. 3, so thatv said edges' present, at that` face of the blank, sharp, projecting burrs or ridges 20, sal-d edges being correspondingly rounded at the 4opposite-face of the blank, Yasshown at 21.

FFiC-E 'I HARRY, E. RUCIIERT, or PIIILAiDEtPHIA,y PENNSYLVANIA, .As'sIcNoia,A BY ivIEsNn,

ASSIGNMENTS, To SANITARY PRODUCTS coRPonA'IIoNoI` h In the operation of punching out blanks by means of instrumenl In the manufacture of spoonsofthe type to which the' present invention relates, the blanks" 18-are Ishaped into the desired form 'by and between complementary forming dies 4of the generaltype shown at 22 and23 in Fig-.14', the shape of said dies,v as shown, be-

ingsuch as to produce laspoon or similar utensil 24:l (Fig. 5y) by bendingthe blank in onevdirection to form a concave-convex bowl 25 and in thel opposite direction to form a 4 the dies 22 and 23 arelso shaped that thi-e bowl 25 isformed with its vconcave sideat that face'of the blank which was' engaged by the punch 16 and toward -which the edges 19 have been turned. AVVVh'en so formed, .the

sharp b'urrs orrid`gesv20 are brought to the upper side ofthe'bowhas shown in Fig. 6, I

ico I f thereby resulting in the presence, along the upper rim of the bowl, of sharp edges'which tend to cut the upper lip `of the user, unless removed by a bufiing or other finishing operation which adds materially to thecost of the spoon. Utensils of this type are designed for only temporary use and are soldat a very low price, so that the element of pro-k fduction cost is important.. l

to torni a spoon 29 Whose bowl 8O is dis-v posed vwith its convex side at that tace of the blank Which Was engagedaby the punch 1G and toward which the edges 19 have .been

y in

turned. As a result, the rounded edges 21 ot the blank are brought uppermost, as shown in Fig. 8, so as to provide a smooth rim to ,the bowl. Without any special ,subsequent finishing operation, the sharp edges being turned downwardly Where ,they Qannot engage the npperlip ot the nser nor his lower lip which is held away from said edges .by the convexity of tliefbowl. e

As in the case of the spoon 2d, the 'hank dle 8l .ot the spoon y29 is substantially straight and U-shaped' in vcross-section with its convexity 4opposite that of the bowl, so -that when formed as last described the sharp edges 2O of the blank -are `brought to the bottom ot the handle, as shown in Ildlig. `E). ln .this vposition said edges ,tend to cut the thumb and lingers ot lthe user, and in korder to prevent such injury the dies 27 and V28 are, in accordance With 4the present invention, so formed esto 'flat-tentheturnededges' i 19 of the blank at the sides Lof the handle.

This is'prel'erably accomplished by so ytorniing ythe dies 27 and 28 as to turn said edges outwardly, vas shown in Fig. ,to form vlongitudinally extending, substantially coplanar lands or stitlening langes (see also Figs. ll and l2) ,o at the lsides of the handle .3l and connecting with' the bowl 30. By the formation of these lands on lthe Yhandle of the spoon, the 4burrs on the saidhanvdle are, duringthe 'forming operation, dis- ,osed in and under the corres Ondine flat i l b `opposed faces of the forming dies, and are therefore crushed or dulled by the vfinal action ot' the dies. v

The,resultingspoon may therefore be produced by a simple process from inexpensive material but is nevertheless lentirely Yfree 'from sharp edges Which might tend to injure either the mouth or the ,hands of the user, the design being such thatthe sharp rburrs along the edges of the handle, which result troni the manipulation oit the blank necessary to avoid such burrs at the upper edgesvot the bowl, are effectively eliminated by the tormingdies during the forming ,op-

eration by their conversion into theflat lands or kflanges 3.2. These .lands or flanges not only provide smooth flower edges on the handle, but serve to stiften in the lateral direction the entire strnture, particularly the handle Si, `ivliieh "is adeqp',ate'lyfstiilenedin the 'Vertical di'resteafby'ltf "ushered Cross section, thereby vprovidinga straight handle of vsimple design and .graceful form but ot' fully adequate strength and rigidity.

lllhat I .claim l. rll'he hereiny described method of making .a spoon `or ,the like which consists in pnnehing a blank Yfrom sheet metal v,stock and simultaneously lturning the vedges iof blank in the ydirection lot one ,off ,the tages there'oi, shaping saidblankto .torna a .boyvl with Lits convex side vrat ,the ,face .of 'toward which said ,edges `,are iturned iand YU- Sharedvfessection with its onveeityerpesite thatef the bowl, and flattening .the .poi 'ons ,of the a handle snbstan all said handle.

'The herein lfleqrbed -nisffhed .Qf .grieking spoon ,or the like 'yvhichlfeonsists vin lninching a ,blank 'from slieet metalstook and sinniltaneously lturningthe edges ot' said blank in the directionot ,one 5ofthe Eiside-ls thereof, bending Said. ,one `direotion to ltorni .a concave-convex Eboavl `nzit'h itsonver: side at the Ttace L,o'fftlie ,blank toward `which said edges are turned, andsimultanef `ously,bending said blank ln'gthegoppositefdif rection to form a handlesubstantially QU,- -Shared in ,Class-sessi@with .ifs frivexty opposite that of gthe bo-Wl, and flattening the edges ot the blankkalong'thesides? of .said handle. y, y i* l B. The herein .describedgnethod of .inalf ingy a spoonl or the llike'nvhich V.1,oo nsistsfin punching a yblank fromv sheet inet/al :stock and simultaneously turning the edges of said blank in the direction oi oneofthe faces thereof, .shaping ,said blank to form a bowl With itsy convex side aththie face-.fof the blank toward Which said" yedges are turned and a handle substantially@Ushaped in Voross-settion with itsleonveiity*opposite ythat `obl ,the bowl, .and .turninggoutward*the edges ofl said handle to form jlongitudinalsilent-sr.

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