They look something like bandboxes made of firebrick.    From Wordnik.com.  [Illustrated Science for Boys and Girls] Reference

PS - loved the firebrick one daisybones on March 04, 2008.    From Wordnik.com.  [An Alphabetic List Of Colours And My Resulting Recollections] Reference

It consists of a firebrick-lined steel drum resting on rolers.    From Wordnik.com.  [7. Frits and fritmaking] Reference

I gave that up a couple years later when somebody slipped a firebrick in on me.    From Wordnik.com.  [Long Ago and Far Away] Reference

There are no firebars at the bottom, so that the fuel rests on a floor of firebrick.    From Wordnik.com.  [Scientific American Supplement, No. 401, September 8, 1883] Reference

The most practical solution is an insulating firebrick wall backed up by ordinary blocks.    From Wordnik.com.  [2. Kilns] Reference

The hot firebrick is then picked out of the kiln and plunged into water of room temperature.    From Wordnik.com.  [1. Refractories] Reference

Few, if any, samples of firebrick will stand the heat of this blast, if the system is fully utilized.    From Wordnik.com.  [Scientific American Supplement, No. 481, March 21, 1885] Reference

A square brick arch will have thick outer joints and these should be filled with broken firebrick pieces.    From Wordnik.com.  [2. Kilns] Reference

The top of my firebrick kiln AF-99 is always warm and just hanging out, wishing that it could be of use too.    From Wordnik.com.  [Better Scents in the Studio] Reference

The technique uses factory-built fireplaces that are lined with standard firebrick and look like masonry fireplaces.    From Wordnik.com.  [Homeowner Looks to Burn] Reference

The ability to withstand thermal shocks is tested by heating a standard-size (appr. 23 x 11.5 x 6.5 cm) firebrick to around.    From Wordnik.com.  [1. Refractories] Reference

Typically, firebrick has a more yellowish colour and is more ceramic in appearance with little or no porosity to the brick.    From Wordnik.com.  [Care and maintenance of the fireplace] Reference

Having passed the junction and the valley of the mines, we come to a firebrick and marmite manufactory, 410 ft. above the sea.    From Wordnik.com.  [The South of France—East Half] Reference

However, this can be difficult for small potteries which cannot afford to build special kilns for grog and firebrick production.    From Wordnik.com.  [1. Refractories] Reference

The same result could be obtained by a pile of red-hot lumps of firebrick, and the same heat obtained also without a trace of flame.    From Wordnik.com.  [Scientific American Supplement, No. 430, March 29, 1884] Reference

Therefore before trusting a refractory raw material or a refractory product, say a firebrick, some simple tests should be carried out.    From Wordnik.com.  [1. Refractories] Reference

In the latter case, place the work on a firebrick, and arrange two other bricks on edge about it, so that it lies more or less in a corner.    From Wordnik.com.  [On Laboratory Arts] Reference

The piece being welded is braced and supported on this table with pieces of firebrick so that it will remain stationary during the operation.    From Wordnik.com.  [Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon] Reference

This type of press could be used for firebrick pressing, and even for tiles, but those who have tried it say that it is slow and produces uneven work.    From Wordnik.com.  [5. Semidry foaming] Reference

This has the double purpose of ensuring good mixing and of transferring the heat of the firebrick lining to the frit as this constantly moves over it.    From Wordnik.com.  [7. Frits and fritmaking] Reference

Generally, solid heavy firebrick arches spanning less than 1.5 m are laid with 12 cm thickness, up to 4 m spans 23 cm thickness and above that 34 cm is used.    From Wordnik.com.  [2. Kilns] Reference

H is the cover, with a firebrick lining; and I is a false cover of firebrick, 1 in. smaller than the cross section of the pit, put in to rest on the top of the ingot.    From Wordnik.com.  [Scientific American Supplement, No. 360, November 25, 1882] Reference

Metal lattice work may be fastened or laid in the top framework and used to support a layer of firebrick bound together with a mixture of one-third cement and two-thirds fireclay.    From Wordnik.com.  [Oxy-Acetylene Welding and Cutting Electric, Forge and Thermit Welding together with related methods and materials used in metal working and the oxygen process for removal of carbon] Reference

Right now, the power train stops at the big flywheel, but the engine is complete, and Yarrl has fired up the boiler at low temperatures several times to help temper the firebrick.    From Wordnik.com.  [The Magic Engineer]

Heat Treat department wanted a skilled firebrick layer.    From Wordnik.com.  [My Life and Work] Reference

Whether those neighbors suspected foul play when John last week assembled in his back yard a makeshift kiln of firebrick, I'm unsure.    From Wordnik.com.  [StarTribune.com rss feed] Reference

I was a firebrick for the pasties once, and it's not an experience I wish to repeat. ".    From Wordnik.com.  [Reiffeins Choice] Reference

2004-09-07 - but there is a sixer of schell's firebrick in the trunk of my car.    From Wordnik.com.  [pojken Diary Entry] Reference

3d, Forming the supporting walls, B, of firebrick, with iron plates between the courses, substantially as shown and described.    From Wordnik.com.  [Scientific American, Volume 17, No. 26 December 28, 1867 A Weekly Journal of Practical Information, Art, Science, Mechanics, Chemistry, and Manufactures.] Reference

"You mean in the firebrick furnace?".    From Wordnik.com.  [The Wonder Island Boys: Exploring the Island] Reference

8 solid firebrick recipes.    From Wordnik.com.  [1. Refractories] Reference