US735850A - Manufacture of key-opening tongued tearing-strip cans. - Google Patents

Description

PATENTED AUG. 11

G. W. WEBER.

APPLIOATION FILED rm. 28, 1903.

Z i 250 I 5 MANUFACTURE OF KEY OPENING TONGUED TEARING STRIP CANS.

H0 MODEL. [Q91 no. 735,850, Patented August 11, 1903.

U ITED STATES PATENT OFFICE.

GEORGE WV. WVEBER, OF ST. PAUL, MINNESOTA, ASSIGNOR TO AMERICAN CAN COMPANY, OF JERSEY OITY, NEW JERSEY, A CORPORATION OF NEW JERSEY.

MANUFACTURE OF KEY-OPENING TONGUED TEARlNG-STRIP CANS.

SPECIFICATION forming part of Letters Patent N 0. 735,850, dated August 11, 1903.

Application filed February 28, 1903. Seri l N 1 ,460 (N model) T al wh m it m y n rm body blank into a double can-body and sol- Be it known that I, GEORGE W. WEBER, a deringits side seam, and then finally cutting citizen of the United States, residing in St. or dividing the double can-body at its middle Paul, in the county of Ramsey and State of into two separate or single can-bodies. By Minnesota, have invented a new and useful this method or process it will thus be seen Improvement in the Manufacture of Keythat the scrap or waste stock is reduced to a Opening Tongued Tearing- Strip Cans, of minimum and that the time and labor rewhich the following is a specification. quired for forming the scores or weakened Myinvention relates toimprovementsin the lines, forming the can-bodies, and soldering IO method or processof manufacturing key-openthe side seams are reduced substantially one- 60 ing tongued tearing-strip can-bodies. Herehalf. tofore in manufacturing such can-bodies it To enable my invention to be more readily has been customary to first cut thetin-plate and-clearly understood by those skilled in the into blanks long enough to form the can-body art, I have in the accompanying drawings, 1 and the projecting tongue ofthe tearing-strip, forming a part of this specification, illus- 65 then cut away from one end of the blank the trated the several steps or stages of forming surplus stock at each side of the tongue, so as tongued tearing strip can bodies by my to leave the tongue projecting as required, method or process. and then form the scores or weakened lines In said drawings, Figure 1 represents the at each side of the tearing-strip, then bend or quadruple tongued tearing-strip can -body" 70 form the blank into a can-body and solder the blank into which a sheet of tin-plate iscut as side seam thereof. the first step. Fig. 2 shows this quadruple The object of my invention is to provide a blank divided into two double can body method or process by means of which the blanks,each havingtwo tongues formedthereamount of scrap or waste produced in the on. Fig. 3 is the same as Fig. 2, showing the 75 manufacture of tongued tearing-strip canparts separated for greater clearness. Fig. 4 bodies may be greatly reduced and by which illustrates the third step of the process, showalso the time, labor, and expense of manuing one of the two double can-body blanks factoring the can-bodies may be greatly reafter passing through the scoring-machine to duced, thus materially cheapening the cost of form the scores or weakened lines at the edges 80 the manufacture. V of the twotearing-strips. Fig. 5 illustrates My invention consists in the means I emthe fourth step, showing the double can-body ploy to practically accomplish this important formed from the double blank illustrated in object or result-that is to say, it consists in Fig. 4. Fig. 6 shows the final step of severfirst cutting from a sheet of tin-plateaquading the double can-body into two separate 85 ruple can-body blank, a blank long and wide tongued tearing strip can bodies. Fig. 7 enough to form four tongued tearing-stripped illustrates amodification in which the double can-bodies; second, dividing this quadruple can-body blank illustrated in Fig. 4 is .diblank into two double can-body blanks and vided or slit into two can-body blanks while 0 simultaneously forming the necessary four yet in the flat. I 0 projecting tongues for the four can-bodies, In the drawings, A represents a quadruplethe tongues being staggered in respect to each tongued tearing-strip can-body blank. other and all formed out of the same inter- B B are the two double-tongued tearingvening piece of scrap, which is severed from strip can-body blanks formed from the quadthe quadruple blank at the time the quadruple blankAbycutting out'at one operation 95 ruple blank is divided and the tongues the intervening single ,piece of scrap C, out formed; third, forming the scores or weakof which the four tongues 01 are simultaneened lines of the two tongued tearing-strips ously formed, all out of one and the same inon each of the two double can-body blanks; tervening piece of scrap C. The dies which fourth, bending or forming the double cancut out the scrap 0 from the quadruple blank I00 and form the tongues 61 also form the notches at cl at each edge of each tongue d. After the double-tongued tearing-strip can-body blank B is thus formed itis passed between scoringrolls, and the four scored or weakened lines d are simultaneously formed on the double can-body blank, as illustrated at Fig. 4E. The double can-body blank B is preferably next formed into the double can-body D and its side seam d soldered. The side seam 61 may be a lap-seam, as illustrated in the drawings, or anyother customary form of side seam employed in making can-bodies. After the double can-body is thus formed it is cut or divided at its middle at the dotted line d into two separate or single-tongned tearing-strip can-bodies F F.

If desired, the double can-body blank B after being scored or simultaneously with the scoring operation may be slit or divided into two can-body blanks G G,'as illustrated in Fig. 7, though by so doing the labor of forming the can bodies and soldering the side seams would thus be increased.

It will be observed that the can-bodies F formed by my process are all exactly alike and have their tearing-strips d and tongues d all in the same relative position in respect to the top and bottom end edges of the canbodies and of the blanks from which the canbodies are formed and that the top edgefis adjacent to the bottom edgef of the adjacent can body or blank and that the tongues d d" on one double blank B are staggered in re spect to the tongues d d on the other double blank B, as will be clearly understood from the dotted lines in Figs. 1, 2, and 5.

I do not claim the process or method of first making a double can-body blank and then simultaneously dividing it into two can-body blanks and forming a tongue on each thereof by cutting out and removing from its middle portion a single piece of scrap, out of which both tongues are formed, as is more fully set forth in the pending application of Bernard H. Larkin, Serial No. 148,987, filed March 21, 1903. r

l. The method or process of manufacturing tongued tearing-strip can-bodies consisting in first making a quadruple can-body blank; second, dividing the quadruple blank into two double blanks by cutting from its middle portion a single piece of scrap, out of which the four tongues are simultaneously formed, two on each double can-body blank; said tongues being left integral each with its respective can body blank, and the two tongues on the one double blank being staggered in respect to the two tongues on the other double blank, and all said tongues being cut out of the waste middle portion at the same time said waste middle portion is cut from between the double can-body blanks; third, forming scores or weakened lines on the double blanks at the edges of the tearingstrips; fourth, forming the double can'body blanks into double can-bodies and soldering the side seams thereof; and fifth, cutting or dividing the double can-bodies into single can-bodies, substantially as specified.

2. The method or process of manufacturing tongued tearin -strip can-bodies consisting in first, making a quadruple can-body blank; second, cutting from its middle portion a single piece of scrap, and thereby dividing the quadruple blank into two double blanks, each having two tongues thereon; said tongues being left integral each with its respective canbody blank, and the two tongues on the one double blank being staggered in respect to the two tongues on the other double blank, and all said tongues being cut out of the waste middle portion at the same time said waste middle portion is cut from between the double can-body blanks, scoring the double blank to form the tearing-strips thereon, forming the double blank into a double can-body, and cutting or dividing the same into single can-bodies, substantially as specified.

3. The method or process of manufacturing tongued tearing-strip can-bodies consisting in the following steps: making the quadruple can-bodyblank,dividingthesameintotwodouble can-body blanks and forming four tongues, two on each double blank, by cutting out a waste middle portion from between the two double can-body blanks, said tongues being left integral each with its respective can-body blank, and the two tongues on the one double blank being staggered in respect to the two tongues on the other double blanks, and all said tongues being cut out of the waste middle portion at the same time said waste middle portion is cut from between the double can-body blanks and again subdividing, substantially as specified.

4c. The method or process of manufacturing tongued tearing-strip can-bodies consisting in first making a quadruple can-body blank, dividing it into two double can-body blanks, and forming two tongues on each double blank, by cutting out a waste middle portion from between the two double can-bod y blanks, said tongues being left integral each with its respective can body blank, and the two tongues on the one double blank being staggered in respect to the two tongues on the other double blanks, and all said tongues being cut out of the waste middle portion at the same time said waste middle portion is cut from between the double can-body blanks and finally scoring, subdividing and forming the same into can bodies, substantially as specified.

GEORGE W. WEBER.

Witnesses:

H. M. MUNDAY, WILLIAM A. GEIGEB.

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