US1627650A - Reenforced drawn baking pan - Google Patents

Description

' May 10,1927.

A. KATZINGER REENFORCED DRAWN BAKING TAN Filed Sept. 2, 1926 Arron/v5 Y to and (6).

Patented May 10, 1927.

UNITEDHSTATE'S PATENT OFFICE. Y

ARTHUR KATZINGER, CHICAGO, ILLINOIS, ASSIGNOR TO EDWARD KATZINGER COMPANY, OF GHIGAGO, ILLINOIS.

zannnrononn DRAWN BAKING ran.

Application filed September 2.192s. Seriallib. 133,251.

This invention relates to pans used for baking bread, cake and similar materials,

. used ordinarily by the wholesale bakeries, although obviously the same construction 5 can be used for. domestic cooking purposes and'for many other purposes some of which arementioned herein.

The object of this invention is to provide a strong durable and simple sanitary bak I tached together in a unit in accordance'with my invention. Figure II shows aside ele .vation in section while Figure III shows an end elevation partly'in section.

Referring to the drawings more specifically (1)- represents a' typical pan which is preferably drawn from one piece. (2) indicates the bottom portion of the pan and (.3)

and (4) the side members. The side portions are connected to the bottom by radii Sides (3) and (4) are inclined from the vertical by an angle which is varied to suit the requirements but ordinarily averagesabout onequarter inch of flare on a depth of two and one half inches 85 to three inches. 7

I The ans "are held together by a band or strap which is ordinarily formed of one iece for encirclin the entire series of pans. e strap (7) is o a half round section and disposed W'lth its flat side against the pans.

The pans-are formed with a flangee rtending horizontally at'the top portion In the direction of the four sides. Inthe case of an end pan three ofthe flanges are folded over the stra ;(7)' as indicated by reference #8 on the flange'is connected to the ad acentfiange of the adjacent pan by the series of rivets (9). The flanges which are rolled over the half Mfround stra (7) ma if desired, be riveted or spot we ded to t strap, but in many caseswhere a heavy gauge of metal 18 emawings. The third or remaining ployed the stiffness of the metal appears to be sufficient to hold the strap into place. Spot welded or other types of fastenings may1 be substituted for rivets (9) if de- SlIe Y In the case of intermediate pans, that is pans which do not form one of the end members of the series, the two flanges on the short sides are rolled over the half round strap while both flanges on the long sides are fastened to adjacent flanges of adjacent pans as shown.

In addition to the rivets (9) a series of holes or perforations (10) are shown. These perforations extend preferably through both of the flanges which are fastened together and serve to permit the circulation of air upward along the sides of the pan.

Referring to Figure III (11) indicates the flange on the pan which is sectioned while (12) indicates the flange on the adjacent pan which is placed beneath and riveted to flange (11) by rivet (13).

The pans are preferably made Witha black finish on the outer side and a bright this invention is arrangement.

I am aware that pans have been fabribated into units by rolling'flanges about a round wire. the round wire, but represents a decided not restricted to such an improvement in that the half round rod or; strap is much larger and much stifler and by its shape supports the pans more satisfactorily than would the. round wire. As

.far as I am aware the round wire type of reenforcing for connecting into groups has been discarded long ago. In order to secure suflicient strength and rigidity from the round wire reenforcing stripthe diameter of the-wire which was required was so great that the pans were unduly bulky, clumsy and heavy; Further the round wire left alarge portion of the pan without proper support or reenforcement. A round wire-would obviously be in contact with the side of the pan only along a single line.

'-On the other hand, the half round re enforcin which I have invented is in contact in e side of the pan over a distance as wide. as its diameter and as longas the This invention does, not cover metallic finish on the interior side although rigidly hold the set permits of ready forming in such a manner as to entirely surround a group of pans.

The half round rod is, of course, much superior to a flat strip for many obvious reasons.

It will be apparent that many modifications can be made in the details of construction here disclosed without departing from the spirit of this invention.

One of the essentials of this invention is the use of relatively heavy sheets in the formation of the pans. It will be obvious that if li ht gauge tin plate or other sheet is used $01 forming the pans the flan e which is curved over the half round rod Wlll not have suflicient stiffness and strength to of pans in place. My

invention depends, among other factors,

--upon the stiffness or strength of the curved glicity, economy,

flange to hold the pans in a strong or rigid unit. As far as my knowledge goes this construction has never been'used beforeand ofiers positive advantages in strength, simfreedom 'from catching irt or grease and ease of cleaning as well as durability.

Havin now fully described my invention what I e aim as new and wish to cover by Letters Patent in the United States is as follows: p

1. A series 0 pans, each formed from a single sheet of tin plate without seam or joint, and with large radii at each corner, sald pans bein formed into a set and arranged side by s1de, each of said pans having a continuous integral flange on all four sides, surrounding the series of pans, and arranged with the flat side adjacent the pans, each of the ends of the series of pans having flanges on .three of its sides drawn over said half round strap and each of the intermediate pans having flanges on two of its sides riveted together and perforated.

2. A series of drawn seamless baking pans, each formed from a single sheet of tin plate, without seam or joint and with large radii at each corner, said pans being formed into a set andarranged side by side, each of said pans having a continuous integral flange on all four sides, an elongated section strap surrounding the series of pans and. arranged with the flat side adjacent the ans, each of the ends of the series oi-pans aving flanges on threeof its sides drawn over said elongated section strap, and each of the intermediate pans having flan es on' two of its sides riveted together an perforated.

. ARTHUR KATZINGER.

drawn seamless baking a half round strap.

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