US1832442A - Sagger - Google Patents

Description

Nov. 17, 1931. R. E. ANDERSON 1,832,442

sAGGER Filed Dec. 11, 1929 Patented Nov. 17, 1931 UNITED STATES PATENT' osi-*ice ROBERT n ANDERSON, or MonRIsvILLE, rnNNsinvANIA, AssIGNoR' To nonnnrson ART TILE COMPANY, oF MoRnIsvILLE, PENNSYLVANIA, A CORPORATION or' NEW JERSEY Application med December 11', i929. serial No. 413,213.

My invention relates to an improvement in saggers, more particularly for use in firing tile.

Heretofore it has been customary to utilize,

in the firing of for example tile, saggers of box-like form. The saggers, as heretofore used, have been made of refractory material and have comprised a base and four sides to contain tile to be fired. The saggers heretofore used have been open to many objections, principally in that they comprise a substantial bulk of material in proportion to the amount of tile contained and which is re quired to be heated in addition to the tile,

they are relatively heavy and cumbersome to handle and require a substantial amount of room for storage, they are easily damaged or broken, they negative uniform heating of the tile and during the firing the major portion of the tile contained in the sagger cannot be inspected.

In accordance with my invention, I provide a sagger which is very largely lighter than the saggers heretofore known and which is collapsible, thus reducing \the heatv required to lire thel tile and enabling easy handling and storage in relatively restricted space. The sagger in accordance with my invention is so constructed as to enable thel tile to be inspected at any time and to insure rapid and uniform heating and cooling. Further, the sagger in accordance with my invention is so constructed as to enable the replacement of damaged parts.

The construction of the saggerin accordance with my invention will be understood from the following description, with refer ence to the accompanying drawings, in which:

a base, desirably of rectangular shape and Fig. 1 is a perspective view of a sagger formed from suitable refractory material, The base is provided adjacent its ends with apertures I), b and with flanges 0, c whichextend adjacent to the sides of the base topoints adjacent to its ends. (l, el indicate end mem-V bers, which are duplicates and which are formed rfrom suitable refractory vmaterial. Each of the end members is provided with a tenon e extending from one of its ends uand withfeet f positioned adjacent to the tenon and extending at right angles theretof'rom the end ofthe member. Each of the end members is provided also with a reces'sin its end opposite to that from which the tenon extendsv 'In the'assenibled sagger the end members extend vertically `from the base member,be` ing retained in position through the extension of the tenons on ,the end .members into the apertures in the base and through ,the engagement of thel feet f with the base., The tenons e are a loose fit in the apertures andare desirably tapered in order to avoid binding of the tenons in, the apertures through expansion. Further, the tenons def` sirably extend into the end members slightly beyond-the lower surface of the feet f, as indicated at lnk, Fig. 2. j Y l In using thesagger embodying my inven-` t'QDa layerV of sand is placed on the upper surface of the base between the flangesc, whichV serve in conjunction with theendmenf bers, against which the ends of the flanges desirably abut, to retain the sandand enable it to bereadily leveled ofi".Y -Betweenthe end members the tile or biscuits to be fired are s ,tackedand the sagger is then placed in the usual furnace. ,y j v j Y As will be obvious, the. sagger inaccord-v ance with my invention lends'tself to stackf ing as shown'in- Fig. 4, in whicha` plurality of saggers are'illustrated stacked one upon another, it` being customary to staclrthe saggerson, for example, a carnforintroduction into a furnace. The stacking of saggers embodying my invention in no way negatives the free .circulation of heat to thecontained tiles or biscuitssince lthe recesses inthe end members and4 the fact that the side members are open provide foradequate circulation afv ford uniform heating of the contained tiles or biscuits and likewise for uniform cooling thereof.

It will now be noted that the sagger in accordance with my invention lends itself admirably for the purpose intended and that due to its relative lightness as compared with saggers as heretofore constructed, it has been found that eective ring may be obtained with the use of temperatures as much as 150 F., or more, lower than With the saggers heretofore used. Further, it will be noted, as has been indicated, that the sagger embodying my invention may be easily handled and may be disassembled for storage and, at the saine time, due to the construction it will be found of adequate rigidity when assembled. Further, it will be noted that due to the light Weight of the sagger embodying my invention, tiles or biscuits to be fired may be rapidly brought up to the desired temperature and rapidly cooled and, at the same time, the tiles or biscuits will be uniformly heated and cooled When the saggers are stacked, due to the open sides and the recessed end members.

What l claim and desire to protect by Letters Patent is:

1. A sagger formed from refractory material and comprising a base provided with apertures adjacent its opposite ends and end members each provided i ith a tenon at one end and having a recess formed in its opposite end, the end members extending vertically from the base and being retained in position through engagement of the tenons in the apertures.

2. A sagger formed from refractory material and comprising a base provided With apertures adjacent its opposite ends and end members each provided with a tenon at one end and having a foot adjacent said tenon extending at right angles to the tenon, the end members extending vertically from the base and being retained in position through engagement of the tenons in the apertures and through engagement of the feet with the base.

3. A sagger formed from refractory material and comprising a base provided With apertures adjacent its opposite ends and having flanges extending along` opposite sides to points adjacent its ends and endy members each provided with a tenon at one end, the end members extending vertically from the base and being retained in'position through engagement of the tenons in the apertures.

ll. A sagger formed from refractory material and comprising a base provided With apertures adjacent its opposite ends and hav? ing flanges extending along opposite sides to points adjacent its ends and end members each provided with a tenon at one end and having a foot adjacent said tenon extending at right angles to the tenon, the end members

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