Interlocking checker bricks and checker shoes for a blast furnace stove

Claim 2

A checkerwork brick of hexagonal form comprising: a. six side surfaces and parallel top and bottom surfaces that are substantially perpendicular to the side surfaces, b. said checkerwork brick being pierced through by a first hole at its geometric center and by six second holes disposed equidistant from said first hole and on the perpendicular bisectors of the sides of said brick, each one of said second holes merging with a recess in one surface of the top and bottom surfaces and each one of the second holes having a protrusion around it on the other one of the top and bottom surfaces, c. said checkerwork brick being pierced through further by a plurality of other holes disposed on lines containing the centers of said first and second holes that are parallel to said sides of said checkerwork brick; d. a one-third hole notch at each apex of said checkerwork brick; and e. at least one one-half hole notch in each of the six side surfaces. triangular-shaped

Claim 3

A checkerwork brick comprising: a. three equal length side surfaces and a fourth side surface connecting two side surfaces with top and bottom parallel surfaces that are substantially perpendicular to the side surfaces, b. said checkerwork brick being pierced through by first holes disposed on the perpendicular bisectors of the three equal length side surfaces, each one of said first holes merging with a recess in one of the top and bottom surfaces and each one of said first holes having a protrusion around it on the other one of said top and bottom surfaces, c. said checkerwork brick being pierced further by other second holes disposed on lines containing the centers of said first holes, said lines being parallel to said fourth side surface; d. a one-third hole notch at the apices formed by the intersection of two of the three equal length side surfaces; e. a one-sixth hole notch at the apices formed by the intersection of the fourth side surface with each one of two of the equal length side surfaces; and f. at least one one-half hole notch in each one of the equal length side surfaces.

Claim 4

A checkerwork brick comprising: a. three equal length side surfaces and a fourth side surface connecting two side surfaces with top and bottom parallel surfaces that are substantially perpendicular to the side surfaces, b. said checkerwork brick being pierced through by first holes disposed on the perpendicular bisectors of the three equal length side surfaces, each one of said first holes merging with a recess in one of the top and bottom surfaces and each one of said first holes having a protrusion around it on the other one of said top and bottom surfaces, c. said checkerwork brick being pierced further by other second holes disposed on lines containing the centers of said first holes, said lines being parallel to said fourth side surface; d. a one-third hole notch at the apices formed by the intersection of two of the three equal length side surfaces; e. a one-sixth hole notch at the apices formed by the intersection of the fourth side surface with each one of two of the equal length side surfaces; and f. at least one one-half hole notch in each one of the equal length side surfaces.

Claim 5

A checkerwork brick comprising: a. five side surfaces and top and bottom surfaces that are substantially parallel and that are perpendicular to said side surfaces, two of said side surfaces being parallel and perpendicular to a third side surface while the other two of said side surfaces are equal in length and are angularly disposed toward said parallel surfaces, b. said brick being pierced through by a plurality of holes disposed on spaced-apart parallel lines that are also parallel to said parallel sides and that are parallel to each one of said other two equal length sides, with c. first ones of said holes merging with a recess in one of the top and bottom surfaces and with a protrusion surrounding each one of the holes on the other one of the top and bottom surfaces, with d. second ones of said holes having a circular segment cross section and located adjacent said third side surface; e. a one-third hole notch at the apices formed by the intersection of said parallel side surfaces and said equal length side surfaces and of said equal length side surfaces; f. a one-fourth hole notch at the apices formed by the intersections of each one of the two parallel side surfaces and said third side surface; and g. at least one one-half hole notch in each of the two parallel and the equal length side surfaces.

Claim 6

A checkerwork brick comprising: a. five side surfaces and top and bottom surfaces that are substantially parallel and that are perpendicular to said side surfaces, two of said side surfaces being parallel and perpendicular to a third side surface while the other two of said side surfaces are equal in length and are angularly disposed toward said parallel surfaces, b. said brick being pierced through by a plurality of holes disposed on spaced-apart parallel lines that are also parallel to said parallel sides and that are parallel to each one of said other two equal length sides, with c. first ones of said holes merging with a recess in one of the top and bottom surfaces and with a protrusion surrounding each one of the holes on the other one of the top and bottom surfaces, with d. second ones of said holes having a circular segment cross section and located adjacent said third side surface; e. a one-third hole notch at the apices formed by the intersection of said parallel side surfaces and said equal length side surfaces and of said equal length side surfaces; f. a one-fourth hole notch at the apices formed by the intersections of each one of the two parallel side surfaces and said third side surface; and g. at least one one-half hole notch in each of the two parallel and the equal length side surfaces.

Claim 7

A checkerwork brick comprising: a. five side surfaces and top and bottom surfaces that are substantially parallel and that are perpendicular to said side surfaces, two of said side surfaces being parallel and perpendicular to a third side surface while the other two of said side surfaces are equal in length and are angularly disposed toward said parallel surfaces, b. said brick being pierced through by a plurality of holes disposed on spaced-apart parallel lines that are also parallel to said parallel sides and that are parallel to each one of said other two equal length sides, with c. first ones of said holes merging with a recess in one of the top and bottom surfaces and with a protrusion surrounding each one of the holes on the other one of the top and bottom surfaces, with d. one of said first holes being at a center and with a plurality of other ones of said first holes being located equidistant from said center first hole and with said first holes being located on three spaced apart lines parallel to said third sides, with e. second ones of said holes having a circular segment cross section and located adjacent said third side surface; f. a one-third hole notch at the apices formed by the intersection of said parallel side surfaces and said equal length side surfaces and of said equal length side surfaces; g. a one-half elongate notch at the intersection of said parallel sides and said third side; and h. at least one one-half hole notch in each of the two parallel and the equal length side surfaces.

Claim 8

A checkerwork brick comprising: a. five side surfaces and top and bottom surfaces that are substantially parallel and that are perpendicular to said side surfaces, two of said side surfaces being parallel and perpendicular to a third side surface while the other two of said side surfaces are equal in length and are angularly disposed toward said parallel surfaces, b. said brick being pierced through by a plurality of holes disposed on spaced-apart parallel lines that are also parallel to said parallel sides and that are parallel to each one of said other two equal length sides, with c. first ones of said holes merging with a recess in one of the top and bottom surfaces and with a protrusion surrounding each one of the holes on the other one of the top and bottom surfaces, with d. one of said first holes being at a center and with a plurality of other ones of said first holes being located equidistant from said center first hole and with said first holes being located on three spaced apart lines parallel to said third sides, with e. second ones of said holes having a circular segment cross section and located adjacent said third side surface; f. a one-third hole notch at the apices formed by the intersection of said parallel side surfaces and said equal length side surfaces and of said equal length side surfaces; g. a one-half elongate notch at the intersection of said parallel sides and said third side; and h. at least one one-half hole notch in each of the two parallel and the equal length side surfaces.

Claim 9

A checkerwork brick comprising: a. six side surfaces and top and bottom surfaces that are parallel and that are perpendicular to said side surfaces, two of said side surfaces being parallel and perpendicular to a third side surface with two other side surfaces being of equal length and disposed obliquely toward said parallel side surfaces, with one of said equal length side surfaces being parallel to another one of said side surfaces, b. said brick being pierced through by a plurality of holes disposed on spaced-apart parallel lines that are also parallel to said parallel sides and that are parallel to each one of said other two equal length sides, with c. first ones of said holes merging with a recess in one of the top and bottom surfaces and with a protrusion surrounding each one of the holes on the other one of the top and bottom surfaces, with d. said first ones of said holes being disposed at equal distances from a center hole and located on lines parallel to said third side surface; e. at least one second hole through said brick having a circular segment cross section and being located adjacent said third side surface; f. a one-third hole notch at the apices formed by the intersection of said parallel side surfaces and said equal length side surfaces and of said equal length side surfaces; g. a one-half hole notch at the apex formed by the intersection of one of said parallel side surfaces and said another one of said side surfaces; h. a one-half elongate notch at the intersection of the other one of said parallel side surfaces and said third side surface; and i. at least one one-half hole notch in each of the two parallel and the equal length side surfaces.

Claim 10

A checkerwork brick comprising: a. six side surfaces and top and bottom surfaces that are parallel and that are perpendicular to said side surfaces, two of said side surfaces being parallel and perpendicular to a third side surface with two other side surfaces being of equal length and disposed obliquely toward said parallel side surfaces, with one of said equal length side surfaces being parallel to another one of said side surfaces, b. said brick being pierced through by a plurality of holes disposed on spaced-apart parallel lines that are also parallel to said parallel sides and that are parallel to each one of said other two equal length sides, with c. first ones of said holes merging with a recess in one of the top and bottom surfaces and with a protrusion surrounding each one of the holes on the other one of the top and bottom surfaces, with d. said first ones of said holes being disposed at equal distances from a center hole and located on lines parallel to said third side surface; e. at least one second hole through said brick having a circular segment cross section and being located adjacent said third side surface; f. a one-third hole notch at the apices formed by the intersection of said parallel side surfaces and said equal length side surfaces and of said equal length side surfaces; g. a one-half hole notch at the apex formed by the intersection of one of said parallel side surfaces and said another one of said side surfaces; h. a one-half elongate notch at the intersection of the other one of said parallel side surfaces and said third side surface; and i. at least one one-half hole notch in each of the two parallel and the equal length side surfaces.

Claim 11

A checkerwork shoe comprising: a. six side surfaces and parallel top and bottom surfaces that are substantially perpendicular to said side surfaces, b. said shoe being pierced through by a plurality of holes; a first one of said holes being cylindrical and located at the geometric center of said top and bottom surfaces, the other second ones of said holes being generally triangular in shape with arcuate apices, said apices being located on concentric circles, c. one of said arcuate apices having its center located on the perpendicular bisector of a side surface and merging with a recess in one surface of the top and bottom surfaces, with d. the centers of the arcuate other two apices of each said second holes lying on diagonals of said shoe that pass through said center hole and an apex formed by the intersection of two adjacent side surfaces; e. a one-third hole notch at each apex formed by the intersection of two adjacent side surfaces; and f. a one-half elongate oval hole notch in each side surface.

Claim 12

A checkerwork shoe comprising: a. six side surfaces and parallel top and bottom surfaces that are substantially perpendicular to said side surfaces, b. said shoe being pierced through by a plurality of holes; a first one of said holes being cylindrical and located at the geometric center of said top and bottom surfaces, the other second ones of said holes being generally triangular in shape with arcuate apices, said apices being located on concentric circles, c. one of said arcuate apices having its center located on the perpendicular bisector of a side surface and merging with a recess in one surface of the top and bottom surfaces, with d. the centers of the arcuate other two apices of each said second holes lying on diagonals of said shoe that pass through said center hole and an apex formed by the intersection of two adjacent side surfaces; e. a one-third hole notch at each apex formed by the intersection of two adjacent side surfaces; and f. a one-half elongate oval hole notch in each side surface.

Claim 13

A checkerwork shoe comprising: a. four side surfaces and parallel top and bottom surfaces that are perpendicular to said side surfaces with three of said side surfaces being of equal length and with the fourth side surface connecTing two side surfaces; b. said checkerwork shoe being pierced through by a plurality of holes; a first one of said holes being generally triangular in shape with arcuate apices that are disposed on concentric circular arcs, c. one of said arcuate apices having its center located on the perpendicular bisector of a side surface and merging with a recess in one surface of the top and bottom surfaces, with d. the centers of the other two arcuate apices being located on the bisectors of the angles formed by the intersection of two adjacent equal length side surfaces, with e. said shoe being pierced through by at least one cylindrical other hole; f. a one-third hole notch being located at each apex formed by the intersection of two adjacent equal length side surfaces, g. with a one-sixth hole notch being located at each apex formed by the intersection of an equal length side with said fourth side surface; and h. a one-half elongate oval hole notch in each equal length side surface.

Claim 14

A checkerwork shoe comprising: a. four side surfaces and parallel top and bottom surfaces that are perpendicular to said side surfaces with three of said side surfaces being of equal length and with the fourth side surface connecTing two side surfaces; b. said checkerwork shoe being pierced through by a plurality of holes; a first one of said holes being generally triangular in shape with arcuate apices that are disposed on concentric circular arcs, c. one of said arcuate apices having its center located on the perpendicular bisector of a side surface and merging with a recess in one surface of the top and bottom surfaces, with d. the centers of the other two arcuate apices being located on the bisectors of the angles formed by the intersection of two adjacent equal length side surfaces, with e. said shoe being pierced through by at least one cylindrical other hole; f. a one-third hole notch being located at each apex formed by the intersection of two adjacent equal length side surfaces, g. with a one-sixth hole notch being located at each apex formed by the intersection of an equal length side with said fourth side surface; and h. a one-half elongate oval hole notch in each equal length side surface.

Claim 15

A checkerwork shoe comprising: a. five side surfaces and top and bottom surfaces that are substantially parallel and that are perpendicular to said side surfaces, two of said side surfaces being parallel and perpendicular to a third side surface while the other two of said side surfaces are equal in length and are angularly disposed toward said parallel surfaces, b. said shoe being pierced through by a plurality of holes; a first one of said holes being cylindrical and centrally located toward a plurality of second triangular-shaped holes, having arcuate apices that are centered on circles that are concentric with said one hole, with c. one of said arcuate apices having its center located on the perpendicular bisector of a side surface and merging with a recess in one surface of the top and bottom surfaces, with d. the centers of the arcuate other two apices of each second hole being located on the bisector of the angles formed by the intersections of the two equal length sides and of each one of the equal length sides and a parallel side, with e. the centers of the one apices being located on lines passing through the center of said first hole that are perpendicular to at least one of said side surfaces, with f. said shoe being pierced through by a plurality of other holes disposed adjacent said third side surface; g. a one-third hole notch being located at the apices formed by the intersection of an equal length side surface and a parallel side surface and of said two equal length side surfaces; h. a one-half elongate notch at the intersection of said parallel sides and said third side; and i. a one-half elongate oval hole notch in each equal length and in each parallel side surface.

Claim 16

A checkerwork shoe comprising: a. five side surfaces and top and bottom surfaces that are substantially parallel and that are perpendicular to said side surfaces, two of said side surfaces being parallel and perpendicular to a third side surface while the other two of said side surfaces are equal in length and are angularly disposed toward said parallel surfaces, b. said shoe being pierced through by a plurality of holes; a first one of said holes being cylindrical and centrally located toward a plurality of second triangular-shaped holes, having arcuate apices that are centered on circles that are concentric with said one hole, with c. one of said arcuate apices having its center located on the perpendicular bisector of a side surface and merging with a recess in one surface of the top and bottom surfaces, with d. the centers of the arcuate other two apices of each second hole being located on the bisector of the angles formed by the intersections of the two equal length sides and of each one of the equal length sides and a parallel side, with e. the centers of the one apices being located on lines passing through the center of said first hole that are perpendicular to at least one of said side surfaces, with f. said shoe being pierced through by a plurality of other holes disposed adjacent said third side surface; g. a one-third hole notch being located at the apices formed by the intersection of an equal length side surface and a parallel side surface and of said two equal length side surfaces; h. a one-half elongate notch at the intersection of said parallel sides and said third side; and i. a one-half elongate oval hole notch in each equal length and in each parallel side surface.

Claim 17

A checkerwork shoe comprising: a. five side surfaces and top and bottom surfaces that are substantially parallel and that are perpendicular to said side surfaces, two of said side surfaces being parallel and perpendicular to a third side surface while the other two of said side surfaces are equal in length and are angularly disposed toward said parallel surfaces, b. said shoe being pierced through by a plurality of holes; a first one of said holes being cylindrical and located at the intersection of the perpendicular bisectors of the two equal length side surfaces, the other second ones of said holes being generally triangular in shape with arcuate apices that are located on concentric circular arcs centered at said first hole, c. said arcuate apices having their centers located on the perpendicular bisectors of the equal length and the parallel side surfaces and merging with a recess in one surface of the top and bottom surfaces, while d. the centers of the arcuate other two apices of each said second holes lying on diagonals of said shoe that pass through said center hole and an apex formed by the intersection of two adjacent side surfaces; e. a one-third hole notch at each apex formed by the intersectioN of an equal length side surface and a parallel side surface and of the two equal length side surfaces; f. a one-fourth hole notch at the apex formed by the intersection of a parallel side surface and said third side surface; and g. a one-half elongate hole notch in each equal length side surface and in each parallel side surface. 10 A checkerwork shoe comprising: a. six side surfaces and parallel top and bottom surfaces that are substantially perpendicular to said side surfaces with two of said side surfaces being parallel and perpendicular to another one of said side surfaces and with three of said side surfaces being of equal length, b. said shoe being pierced through by a plurality of holes; a first one of said holes being cylindrical and located at the intersection of two bisectors of the angles between mutually intersecting pairs of the equal length sides, and second ones of said holes being generally triangular in shape with arcuate apices that are located on circles concentric to said first hole, c. one of said arcuate apices having its center located on the perpendicular bisector of a side surface and merging with a recess in one surface of the top and bottom surfaces, with d. the centers of the arcuate other two apices of said second holes lying on the bisectors of the angles between two of the equal length sides and between the equal length sides and the parallel sides, with e. the shoe being pierced through by at least one other hole; f. a one-third hole notch located at the apices formed by the intersection of an equal length side surface and a parallel side surface, and of two equal length side surfaces; and g. a one-half elongate hole notch in each equal length side surface and in each one of the parallel side surfaces.

Claim 18

A checkerwork shoe comprising: a. five side surfaces and top and bottom surfaces that are substantially parallel and that are perpendicular to said side surfaces, two of said side surfaces being parallel and perpendicular to a third side surface while the other two of said side surfaces are equal in length and are angularly disposed toward said parallel surfaces, b. said shoe being pierced through by a plurality of holes; a first one of said holes being cylindrical and located at the intersection of the perpendicular bisectors of the two equal length side surfaces, the other second ones of said holes being generally triangular in shape with arcuate apices that are located on concentric circular arcs centered at said first hole, c. said arcuate apices having their centers located on the perpendicular bisectors of the equal length and the parallel side surfaces and merging with a recess in one surface of the top and bottom surfaces, while d. the centers of the arcuate other two apices of each said second holes lying on diagonals of said shoe that pass through said center hole and an apex formed by the intersection of two adjacent side surfaces; e. a one-third hole notch at each apex formed by the intersectioN of an equal length side surface and a parallel side surface and of the two equal length side surfaces; f. a one-fourth hole notch at the apex formed by the intersection of a parallel side surface and said third side surface; and g. a one-half elongate hole notch in each equal length side surface and in each parallel side surface. 10 A checkerwork shoe comprising: a. six side surfaces and parallel top and bottom surfaces that are substantially perpendicular to said side surfaces with two of said side surfaces being parallel and perpendicular to another one of said side surfaces and with three of said side surfaces being of equal length, b. said shoe being pierced through by a plurality of holes; a first one of said holes being cylindrical and located at the intersection of two bisectors of the angles between mutually intersecting pairs of the equal length sides, and second ones of said holes being generally triangular in shape with arcuate apices that are located on circles concentric to said first hole, c. one of said arcuate apices having its center located on the perpendicular bisector of a side surface and merging with a recess in one surface of the top and bottom surfaces, with d. the centers of the arcuate other two apices of said second holes lying on the bisectors of the angles between two of the equal length sides and between the equal length sides and the parallel sides, with e. the shoe being pierced through by at least one other hole; f. a one-third hole notch located at the apices formed by the intersection of an equal length side surface and a parallel side surface, and of two equal length side surfaces; and g. a one-half elongate hole notch in each equal length side surface and in each one of the parallel side surfaces.

Claim 19

A checkerwork shoe comprising: a. five side surfaces and parallel top and bottom surfaces that are perpendicular to said side surfaces, with two of side surfaces being perpendicular to adjacent mutually intersecting side surfaces, and with another side surface being equal in length to one of said two perpendicular side surfaces and connecting said two side surfaces, b. said shoe being pierced through by a plurality of holes; a first one of said holes being cylindrical and located at the intersection of the bisectors of the angles between said another side surface and said two side surfaces, and second ones of said holes being generally triangular in shape with arcuate apices that are located on circular arcs that are concentric with said first hole, with c. one of said arcuate apices merging with a recess in one surface of the top and bottom surfaces, with d. the centers of the other two arcuate apices being situated on extended radii of said first hole that are equiangularly spaced apart, e. said shoe being pierced through by at least one other hole; f. a one-third hole notch located at each one of the apices formed by the intersections of said another side surface and said two side surfaces; g. a one-fourth hole notch located at the apex formed by the intersection of one pair of the mutually perpendicular side surfaces; h. a one-half elongate notch located at the apex formed by the intersection of the other pair of mutually perpendicular side surfaces; and i. a one-half elongate hole notch in each one of three of said side surfaces.

Claim 20

A checkerwork shoe comprising: a. five side surfaces and parallel top and bottom surfaces that are perpendicular to said side surfaces, with two of side surfaces being perpendicular to adjacent mutually intersecting side surfaces, and with another side surface being equal in length to one of said two perpendicular side surfaces and connecting said two side surfaces, b. said shoe being pierced through by a plurality of holes; a first one of said holes being cylindrical and located at the intersection of the bisectors of the angles between said another side surface and said two side surfaces, and second ones of said holes being generally triangular in shape with arcuate apices that are located on circular arcs that are concentric with said first hole, with c. one of said arcuate apices merging with a recess in one surface of the top and bottom surfaces, with d. the centers of the other two arcuate apices being situated on extended radii of said first hole that are equiangularly spaced apart, e. said shoe being pierced through by at least one other hole; f. a one-third hole notch located at each one of the apices formed by the intersections of said another side surface and said two side surfaces; g. a one-fourth hole notch located at the apex formed by the intersection of one pair of the mutually perpendicular side surfaces; h. a one-half elongate notch located at the apex formed by the intersection of the other pair of mutually perpendicular side surfaces; and i. a one-half elongate hole notch in each one of three of said side surfaces.

Claim 21

A checkerwork construction for blast furnace stoves and the like comprising: a. a first course of metallic shoes including;

Claim 22

A checkerwork construction for blast furnace stoves and the like comprising: a. a first course of metallic shoes including;

Claim 23

A blast furnace stove comprising: a. a shell within which there is a combustion chamber and a checkerwork chamber; b. a grid structure within said checkerwork chamber for supporting a mass of checkerwork shoes and checkerwork bricks; c. a plurality of metallic shoes having differing shapes that are mutually cooperative and are arranged as a first horizontal course on said grid structure, said shoes including a plurality of the shoes defined in each of claims 6-11, and arranged with the recesses not adjacent said grid; d. a first course of checkerwork bricks having differing shapes that are mutually cooperative and that are arranged on said shoes, said checkerwork bricks including a plurality of the bricks defined in each of claims 1-5, said bricks being arranged so that the protrusions therein cooperate with the recesses in the shoes; e. a second course of checkerwork bricks having differing shapes that are mutually cooperative and that are arranged on said first course of checkerwork bricks in such a way that pairs of the recesses of the bricks in the first and second courses are in registration; f. means cooperating with each registering pair of recesses and interconnecting the bricks of said first and second courses; g. a plurality of other courses of checkerwork bricks having differing shapes that are mutually cooperative and that are arranged on said second course of checkerwork bricks, with the protrusions of said second and each of said other courses of bricks coacting with the recesses of the bricks contiguous therewith and immediately therebelow; and with h. all of said checkerwork shoes and checkerwork bricks being so arranged in all courses that the holes and notches therein match and form a plurality of vertical flues extending from the bottom to the top of the checkerwork mass.