US1804980A - Supporting device for pottery - Google Patents

Description

May 12, 1931- B.. D. HARDEsTY 1,804,980

SUPPORTING DEVICE FOR POTTERY Filed May 1v. 192s I 2 sheets-sheet 1 9 J'gl.

May M12, l931- B. D. HARDEs'rY v l*,84,980

SUPPORTING DEVICE FOR POTTERY Filed -May 17, 1928 2 sheets-sheet 2 Patented May 12, 1931 ouin PATENT oFFicE.

BENJAMIN D. HARDESTY, OF BEAVER FALLS, PENNSYLVANIA, ASSIGNOR TO MAYER CHINA COMPANY, OF BEAVER FALLS, PENNSYLVANIA, AY CORPORATION OF IlllN'N,e

SYLVANIA SUPPORTING DEVICE non :Po'iurnrnr` Application mea Mayr 17, 192e. seriaiNo. 278,372.

My inventionrelates to the art of burning pottery or ceramic ware in kilns, and particularly to an improved ware support of the crank type. It has in view to provide 5 such a support of minimum size and weight and sov constructed as lto enable a' plurality of them to be used in series with economy of space, while supporting each piece of ware in the kiln independently, with ample heat circulation space. Also, to provide for the ware a series of isolated stabilizing supporting points or edges, with interfitting engagement between adjacent supports Vensuring maintenance of position during use.

The construction of the device and lits manner of use and advantages are more fully -hereinafter described. A y f* Referring tothe drawings: f

Fig. l is a plan view showing the relative arrangement of the supports and ware;

Fig. 2 is a vertical sectional View on the line II-II of Fig. 1; i

Fig. '3 is a perspective view of the support detached,

Fig. 4 is a front view showing the interfitting connection between the supporting terminals of the device;y

thel line V-V Fig. 5 is a cross section on of Fig. 2; v

Fig. 6 is a perspective detail view of one of the supporting points. v

In utilizing supporting devices of the kind involved, it is desirable to interpose between each piece of ware and the next adjacent piece, a support which will be spaced away from the ware sufficiently far to avoidcontact except at a minimum number of locations and of as limited area as possible. Also, to generally conform to the contour of the ware and with ample transverse intervening space for circulation of the heating gases of the kiln. While the particular shape of the suporting device transversely ,may bevaried to adapt it approximat ly to the outline of the ware in cross section, it will be understood that the invention is not strictly limited to any particular extent of variation from a plane transverse area, or as to its size, dimensions, or shape. Onek common which carry form of wareis shownrin vthe drawings, as a plate or dish 2, the middle'portion of rounding rim or edge, and is ordinarily provided with Vthe usual supporting rim or bead 3 underneath. v, f y

Each of the series of supporting devices a vertical series of ware pieces in the kiln, general comparatively flat tripod construction having three equilaterally rarrangedl arms 4L. These arms middle triangular clearance opening 6, each arm sloping upwardly as at 7, and then extending downwardly in the form of a verticalterminal foot v,piece 8. Each Ysuch foot piece' is adapted to rest upon'the upper `which is usually depressed below the surn is made in skeleton form ofl a .Y l Y v@l0 diverge from a middle j .flat portion 5, preferably provided with a edge portion of the next lower support, and

to provide, by itsvupper edge, a supporting bearing for the next upper support;`

For thevr purposeof providing an interlock between' the several pedestals 8, each is provided atv its upper corner edge portion with a 'socket 9, adapted to receive and interfit with `a lower projecting correspondingly narrower projection '10.

Projection 10 fits into socket 9 Lwith slight clearance, each socket being shouldered .in-

wardly and at eachy side 'laterally'KY so that it will be held against lateral displacement, especially under the weight of the ware members 2 and the superimposed supports.

Forthe purpose of' providing a'pointv or knife edge bearing for the ware, or` its lower supporting vrim 3, each arm 4 is provided with a loosely mounted triangular supporting piece or bar 11, having three tapering edges. Each arm 4:' is provided with a depression or socket 12 in its upper surface, shouldered yandextending below the upper surface thereof sov as to efasilypermit thev insertion, with slight clearance, of one ofthe supporting edged elements 11, in a position adapted to engage and carry the ware when when, one support is placed Iupon Aanother placedl thereon. Because of variations in their outermost, middle, or innermost portions, dependent on conditions.

The supports as thus made are composed of suitable refractory material as commonly utilized in the pottery art, and are simple in construction, cheap to manufacture, and durable. Because of their three-point bearings, both as to the support of the ware and supporting connection with each other, thesupporting pieces are very easily assembled and taken apart, and provide a continuous'supporting equilibrium both as to themselves and their burden. Due to their comparatively limited body section and weight, they have a corresponding limited heat absorptive value so that their removal from the kiln involves a minimum amount of heat subtraction therefrom. Their form contributes materially to the successful and economical operation of the kiln, both in manipulation, placement, and removal, while the interlocking construction ensures stability and avoidance of accidental breakage.

It -will be understood that the device may be made in various sizes, proportions, shapes, etc., to adapt it to any particular 4design or Shape of ware, and that various changes or modications may be made in its detail construction by the skilled mechanic, without departing from the scope of the following claims.

What I claim is:

1. A supporting device for pottery ware consistin of a tripod shaped triple arm body of seleton form having upwardly sloping ends with downwardly extending pedestals each provided with an upper socket and a lower lug, and having on the upper face of each arm a depressed rectangular shouldered bearing face for a separable ware supporting abutment, and an elongated abutment therein having a flat base seated in said bearing face with clearance at the ends and sides. j

2. A supporting device for pottery ware consisting of an Yopen center three armed frame of refractory material having a flat hollow depressed middle portion, a depressed shouldered seat on each arm, a triangular supporting elongated abutment in each of said seats, and terminal pedestals.

3. A supporting device for potteryl ware consisting of an open center three armed frame of refractory material havinga fiat hollowdepressed middle portion, a depressed shouldered seat on each arm, a triangular supporting elongated abutment in each of said seats, and terminal pedestals provided guiar male and female at bottom and top with interlocking rectanportions respectively, ythe male portion at the bottom of each pedestal being of its full width providing yrectangular shoulders at each side for interfltting engagement in a corresponding upper socket of an adjacent similar pedestal.

4. In a ware support for saggers, a refractory carrier having plural radial horizontal face arms each provided on its upper face with a corresponding plurality of radially arranged depressed and shouldered seats, and corresponding triangular bars having flat bases freely seated therein with longitudinal and lateral clearance providing upwardly projecting contacting radially disposed edges for ware engagement.

5. In a ware support for saggers,'an lopen center one-piece frame of refractory material having a depressed flat middle portion and three radiating arms, each sloping up- ,wardly at its outer portion and then downwardly of uniform width providing terminal interfitting pedestals, the lower end of each pedestal being substantially rectangular with a middle shouldered extension, the upper vportion of each pedestal having a corresponding rectangular depression for engagement of the shouldered extension of an adjacent pedestal, each radiating arm having in its flat portion adjacent the middle a radially disposed rectangular shouldered depression, and a supporting bar triangular 1n cross section resting by one of its flat faces in such depression with longitudinal and lateral clearance.

v In testimony whereof I hereunto afliX my signature.

BENJAMIN D. HARDESTY.

KOU

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