US1031388A

US1031388A - Bosh-plate.

Info

Publication number: US1031388A
Application number: US67305012A
Authority: US
Inventors: James Smith
Original assignee: Individual
Current assignee: Individual
Priority date: 1912-01-24
Filing date: 1912-01-24
Publication date: 1912-07-02
Anticipated expiration: 1929-07-02

Description

J. SMITH.

BOSH PLATE.

APPLICATION FILED JAN. 24,1912.

Patented July 2, 1912.

Milli/11 711! TOR His Arm-undiv- CDLUMBIA PLANOCIRAPII co.. WASHINGTON. n. c.

"UNITED STATES PATENT OFFICE.

JAMES SMITH, OF PITTSBURGH, PENNSYLVANIA, ASSIGNOR ONE-HALF TO WILLIAM SMITH, 0F ALLEGHENY COUNTY, PENNSYLVANIA.

BOSE-PLATE.

Specification of Letters Patent.

Patented July 2, 1912.

Application filed January 24, 1912. Serial No. 673,050.

To all whom it may concern Be it known that I, JAMES SMrrI-I, a subject of the King of Great Britain, and residing in the city of Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented or discovered new and useful Improvements in Bosh-Plates, of which the following is a specification.

My invention consists of a new and improved bosh-plate for blast-furnaces and the like.

My object is to provide a strong, durable and inexpensive plate, requiring a minimum of material and easily cast or otherwise formed.

My object is also to provide a bosh-plate having an interior free from baffles, anchors, studs or other obstructions, permitting a free and uninterrupted circulation of the cooling medium and avoiding clogging.

My object is also to introduce the cold water into the nose of the plate, to cause it to circulate throughout the plate and toward the butt thereof as it becomes heated and to be discharged at the butt, and also to provide cross or lateral circulation at the butt.

To accomplish the ends in view, I provide my bosh-plate with a vertical well or aperture in the center thereof, walled-in laterally to inclose the interior of the plate, but preferably open at top and bottom. The walls of the well form a vertical bridge or support for the top and bottom walls of the plate, preventing buckling or collapse without the use of interior supports, leaving the interior of the plate perfectly free for the water circulation. A cylindrical passage leads from the exterior of the plate through its butt-wall into said well, said passage being of an exterior diameter less than the height of the interior of the plate so that cross passages for the circulation of the Water are provided above and below said cylindrical passage. A threaded hole is formed in the front or nose-wall of the well in alinement with said cylindrical passage and preferably of somewhat less diameter than the bore of said passage. A water pipe extends from the exterior of the bosh-plate through said cylindrical passage, which it preferably fits loosely, crosses said well and extends through said threaded hole to a point adjacent to the nose-wall of the bosh plate. The inner portion of saidpipe is preferably threaded and engages the threaded hole, thus supporting and securing said pipe removably in position. One or more discharge ports are provided in the butt wall of the bosh plate, preferably a port adj acent to each end of said wall. One of-said ports may be closed, if desired by a plug and the water led from said bosh plate through the one port only. A laterally convexed surface is provided for the inner face of the nose-wall of the bosh-plate in front of the nozzle of the pipe to receive the impact of the water and direct its flow.

In the accompanying drawings, Figure 1 is a plan view of my bosh-plate, the interior construction of which isindicated by dotted lines; Fig. 2 is a butt-end elevation of the plate, and Fig. 3 is a vertical sec tion of the plate along the line IIIIIIin Fig. 1.

The following of the drawings:

is a detailed description A is the bosh-plate, having a nose-wall 1, i a butt-wall 2, side-walls 3-3, top-wall 4: and

bottom-wall 5. The plate is preferably laterally arched, as shown in Fig. 2. The plate is also preferably tapered toward the nosewall, as shown in Figs. 1 and 3 to facilitate its introduction into or withdrawal from the box which is built into the furnace-Wall for its reception. In the center of the plate A is formed a vertical well or aperture B, provided with

end walls

6 and 7 and side walls 8 and 9, extending from the top-wall to the bottom wall of the plate A and inclosing the interior of said plate. I

Leading through the butt-wall 2 and the interior of the plate A intothewell B is an inclosed cylindrical passage 0 of less diameter than the verticalaxls of the plate so as to provide above and below saidpassage 'O a cross passage 10 for the lateral circula vided a threaded hole 11 in alinement with the passage 0 and preferably of somewhat less diameter than said passage.

D is a water inlet pipe extending from the butt exterior of the plate A through the passage C, which it preferably fits loosely, crossing the well B and extending through the threaded hole 11 into the interior of the plate to a point adjacent to the nose wall 1 of said plate. The forward end of said pipe D is threaded for engagement with the threads of hole 11' whereby said pipe is re movably supported and secured in place.

A laterally convexed boss, 12, is provided on the inner face of nose-wall 1 in alinement with the nozzle of pipe D to receive the flow of water from said pipe and divert the same laterally in both directions.

In the butt-wall 2 of the bosh-plate I provide one or more water-discharge ports 13, one of said ports being preferably located adjacent to each end of said butt-wall. Both of said ports may be used, or if desired, one of said ports may be closed, as by the threaded plug 14. VVat-er connections are provided for the outer end of pipe D and for one or both of the discharge ports 13.

1515 are the handles or pierced ears which are cast or otherwise secured to the outer surface of the butt-wall 2 to facilitate the handling of the bosh-plate.

The water introduced through the pipe D impacts against the nose-wall 1 or boss 12, dividing into two flows toward the side walls 3-3 of the plate. These currents of water traverse the interior of the bosh-plate and escape through the ports 1313, a crosscirculation being established through the passages 10-10 along the entire length of the butt-wall 2. In case one of the ports 13 is closed, the water from that side of the bosh-plate passes over to the openport 13 through the passages 10-10 and joins the current on the other side of the plate in escaping from the interior of said plate through the open port 13.

It is evident from the above that the Water currents circulate freely throughout the entire interior of the bosh-plate, thoroughly chilling the same, especially the nose portion thereof. There are no obstructions in the interior of the plate to cause clogging or other trouble. Owing to the additional strength provided by the vertical walls of the well B,the plate will withstand any interior pressure or exterior pressure to which it may be subjected without danger of injury. Buckling is avoided, so that the plate may be disconnected and with drawn or introduced into its wall-box without binding or sticking, thus saving time and labor. A minimum of material, usually expensive bronze or other similar metal, is required and the plate may be cast or other- Wise formed without difficulty as no interior anchors are required in that operation.

The well B may be of any desired size in relation to the bosh-plate, but I prefer the relative dimensions indicated on the drawin What I desire to claim is 1. A bosh-plate having an unobstructed interior and a vertically walled aperture through the central portion thereof, the top and bottom walls of said plate being cutaway to form the ends of said aperture,

means for introducing water across saidaperture into the nose of the plate, and means for the escape of water at the butt of the plate, substantially as described.

2. A bosh-plate having an unobstructed interior and a vertically walled, aperture through the central port-ion thereof, the top and bottom walls of said plate being cutaway to form the ends of said aperture, a water-inlet pipe extending through the butt of said plate, across said aperture and discharging into the nose of the plate, and means for the escape of water at the butt of the plate, substantially as described.

3. A bosh-plate having an unobstructed interior and a vertically walled aperture through the central portion thereof, the top and bottom walls of said plate being cutaway to form the ends of said aperture, a cylindrical passage extending from the butt of the plate through the interior thereof into said aperture, an opening into the nose of said plate through the opposite wall of said aperture, a water-inlet pipe of less diameter than said passage extending through the same and snugly fitting said opening and adapted to discharge water into the nose of said plate, and means for the escape of water at the butt of the plate.

4;. A bosh-plate having an unobstructed interior and a vertically walled aperture through the central portion thereof the top and bottom walls of said plate being cutaway to form the ends of said aperture, a cylindrical passage extending from the butt of the plate through the interior thereof into said aperture, a transverse water passage being provided adjacent to said cylindrical passage, an opening into the nose of said plate through the opposite wall of said aperture, a water inlet pipe of less diameter than said cylindrical passage extending through the same and snugly fitting said opening and adapted to dis charge water into the nose of said plate, and means for the escape of water at the butt of the plate.

5. A bosh-plate having an unobstructed interior and a vertically walled aperture through the central portion thereof, the top and bottom walls of said plate being cutaway to form the ends of said aperture, a

1,os1,sss a Water-inlet pipe extending through the butt means for the escape of the water at the butt of said plate, across said aperture and disofthe plate. 10 charging Water against the nose-Wall of said Signed at Pittsburgh, Pennsylvania this plate, a spreader-boss on said nose-Wall 20th day of January 1912.

against which said Water is injected and JAMES SMITH. whereby said Water is divided into two Witnesses: streams passing in either direction along E. A. LAWRENCE,

' the interior face of said nose-Wall, and J. H. HARRISON.

v Copies of this patent may be obtained for five cents each, by addressing the Commissioner of .Patents,

Washington, D. G.