US1234789A - Truck or stand for use in annealing-furnaces. - Google Patents

Description

T. A. MORRIS.

TRUCK 0R STAND FOR USE IN ANNEALING FURNACES.

APPLICATION FILED OCT. 31. 1916.

Patented July 31, 1917.

, 3 SHEETS-SHEET] T. A. MORRIS.

TRUCK 0R STAND FOR USE IN ANNEALING FURNACES.

APPLICATION FILED on. 31. 1916.

1,234,? 89. Patented July 31, 1917.

3 SHEETSSHEET 2.

Fig.2.

T. A. MORRIS.

TRUCK 0R STAND FOR USE IN ANNEALING FURNACES.

APPLICATION FILED OCT. 31,1916.

Patented July 31, 1917.

3 SHEETSSHEET 3.

THOMAS ALEXANDER MORRIS, OF LLANELLY, WALES.

TRUCK OR STAND FOR USE IN ANNEALING-FURNACES.

Specification of Letters Patent.

Patented July 31, 1917.

Application filed October 31, 1916. Serial No. 128,719.

To all whom it may concern:

Be it known that I, THOMAS ALEXANDER MORRIS, a subject of the King of Great Britain and Ireland, residing at Llanelly, in the county of Carmarthen, South Wales, have invented certain new and useful Improvements in Trucks or Stands for Use 1n Annealing-Furnaces, of which the following is a specification.

The invention relates to trucks orstands which are used in an annealing furnace to carry the plates or other articles through or into and out of the said furnace.

The objects of the present invention are to construct a truck or stand which will increase the life of annealing pots or covers, which will always provide a dead flat annealing surface, which will provide a perfectly air-tight compartment which Wlll evenly distribute the heat, and which will accommodate annealing pots or covers of different sizes, for instance, one large pot or two smaller ones.

The invention is illustrated in Figures 1, 2 and 3 of the accompanying drawings as applied to a truck or bogie such as is used in a continuous annealing furnace, in which the truck passes through the furnace.

Fig. 1 is a vertical longitudinal section of a truck or bogie on the line 11 of Fig. 3, and Fig. 2 is a horizontal section on the line 2-2 of Fig. 3; Fig. 3 is a transverse vertical section on the lines 33 of Figs. 1 and 2.

Fig. 4 is a transverse section through an annealing pot and rolling support for the articles to be annealed, showing how the invention may be applied to a stand to be used in a non-continuous annealing furnace.

In carrying the invention into eifect as shown in Figs. 1, 2 and 3, I employ the body or lower part of an ordinary truck or bogie, having a fiat horizontal surface a and vertical edges 6. Within the edges 6 I closely arrange a series of bricks 9' thus producing an upper horizontal surface a. I build or fix an edging or rim of hard firebricks or of cast iron or other suitable material within and parallel to the vertical edges 6 of the said horizontal surface a. This edging may consist of a single line of bricks c, or blocks of cast iron or other suit able material. Within this edging or rim 0, and at a suitable distance therefrom, are placed a number of bricks or other separate supports cl, which rest upon the upper horizontal surface a of the truck and serve as supports for cast iron plates 6, upon which are placed the sheets or other articles to be annealed. The cast iron plates 6 have an upper horizontal surface e, which is preferably slightly higher than the upper surface of the said edging or rim 0, as shown.

The supports d may vary in number and position according to requirements, but should not impede the'free play of the heat beneath the plates 6.

The cast iron plates 6 are of such dimensions as to leave a space 6 between them and the edging or rim 0, into which space fits the annealing cover or pot f. The cast iron plates 6 are likewise of such dimensions as to prevent the longer sides of the pot f from closing in to any considerable extent.

The supports (2 may also be arranged to prevent the sides and ends of the pot f closing in. As shown some of the supports (Z are almost in contact with each other longitudinally, and others are almost in contact transversely; consequently they afford a support to the pot f in both directions should the sides begin to close in.

The surface supporting the sheets or other articles to be annealed, being made in separate plates 6, can be readily made to accommodate annealing covers or pots of different sizes, according to the sizes of the sheets to be annealed. One plate 0 may be removed, or it may be replaced by a smaller plate. Further, being made in separate plates or sections, there is little or no warping, thus insuring fiat sheets after annealing and preventing red edges being caused by air entering the cover or pot while cooling.

The cast iron plates 6, by preventing the longer sides of the pot f from closing in, keep the pot in shape and thus materially increase its life.

In the drawings the fiat horizontal surface a is produced by closely arranging bricks g, as is usual, upon the body of the tIlllCk, such bricks being placed on their long e ges.

The edging or rim 0 is produced by closely arranging other bricks or blocks upon their ends so that parts thereof stand up above the surface a.

Sand 71, is placed as usual around the pot f, to keep the pot air-tight.

z, i, are the usual channels containing sand 7' to make an air-tight joint with part of the furnace, not shown.

In non-continuous annealing furnaces it is customary to employ an annealing stand or dish provided with an edgin or rim and having grooves on its under side to receive balls or spherical rollers running in channels. When applying theinvention to a stand for use in a non-continuous furnace, I employ a supporting surface as shown in Fig. 4, which is not exactly like the old dish but'has a horizontal upper surface A and a rim or edging b. The horizontal surface A has on its under side the usual grooves A and balls A Upon the surface A I closely arrange bricks 9 similar to those marked 9 in Figs. 1, 2 and 3, of the drawings, and I otherwise carry the invention into effect exactly as described with respect to Figs. 1, 2, 3, similar parts being marked with similar letters of reference in all the figures.

What I claim as my invention is 1. An improved support for use in annealing furnaces, having a flat surface and edges, an upper horizontal surface within said edges, a rim standing up above said upper horizontal surface, separate supports on said upper horizontal surface allowing a free distribution of heat, and separate'metal plates on said supports of such dimensions as to leave a space between them and the said rim to receive the annealing pot, substantially as set forth.

2. An improved support for use in annealing furnaces, having bricks closely arran ed on their long edges to produce an upper at surface, other bricks closely arranged on their ends to roduce a rim standing up above the said at surface, a third series of bricks standing on said flat surface and acting as supports, and separate metal plates on said supports of such dimensions as to leave a space between them and the said rim to receive the annealing pot, substantially as set forth.

3. An improved support for use in annealing furnaces, having a flat upper surface, vertical edges around said fiat upper surface, bricks closely arranged on their long edges withinthe said vertical edges, other bricks closely arranged on their ends to roduce a rim parallel to the said vertical e ges and standing up above the first mentioned bricks, a third series of bricks standing on the first mentioned bricks acting as supports and so disposed as to allow free circulation of the heat between them, and separate metal plates standing on the said supports of such dimensions as to leave a space between the plates and the said rim to receive the annealing pot, substantially as set forth.

In witness whereof I have hereunto set I my hand.

THUS. ALEXANDER MORRIS.

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