US1350427A - Heat-treating box - Google Patents
Heat-treating box Download PDFInfo
- Publication number
- US1350427A US1350427A US314445A US31444519A US1350427A US 1350427 A US1350427 A US 1350427A US 314445 A US314445 A US 314445A US 31444519 A US31444519 A US 31444519A US 1350427 A US1350427 A US 1350427A
- Authority
- US
- United States
- Prior art keywords
- box
- heat
- treating box
- treating
- shape
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Expired - Lifetime
Links
- 239000000463 material Substances 0.000 description 3
- 239000002184 metal Substances 0.000 description 3
- 238000001816 cooling Methods 0.000 description 2
- 239000007789 gas Substances 0.000 description 2
- 239000000956 alloy Substances 0.000 description 1
- 229910045601 alloy Inorganic materials 0.000 description 1
- 238000005336 cracking Methods 0.000 description 1
- 238000010438 heat treatment Methods 0.000 description 1
- 230000004048 modification Effects 0.000 description 1
- 238000012986 modification Methods 0.000 description 1
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C21—METALLURGY OF IRON
- C21D—MODIFYING THE PHYSICAL STRUCTURE OF FERROUS METALS; GENERAL DEVICES FOR HEAT TREATMENT OF FERROUS OR NON-FERROUS METALS OR ALLOYS; MAKING METAL MALLEABLE, e.g. BY DECARBURISATION OR TEMPERING
- C21D9/00—Heat treatment, e.g. annealing, hardening, quenching or tempering, adapted for particular articles; Furnaces therefor
- C21D9/0006—Details, accessories not peculiar to any of the following furnaces
- C21D9/0025—Supports; Baskets; Containers; Covers
Definitions
- This invention relates to heat treating boxes and has for its object the provision of a box of such shape as to present a uniform thickness at all points coupled with a minimum of sharp edges. Another object is to provide a box of such shape as will allow free circulation of hot gases thereabout and will stack conveniently in a furnace. Another object is to provide a box which will have a longer life by virtue of its shape. Further and more limited objects of the invention will appear in the detailed description embodied in the specification.
- Figure 1 is a perspective view of the box with cover removed; 2 is a longitudinal sectional view of the box with cover removed;
- Fig. 3 is a section on the line 33 of Fig. 2; Fig.
- Fig. 4 represents'the corner of a furnace showing the boxes stacked therein; and Fig. 5 is a modification showing a box adapted for small articles.
- Describing the various parts by reference numerals, 1 indicates the body of the box, formed of any suitable metal or alloy used for such purposes, and has pref erably integrally formed therewith the feet 2.
- the lid 3' is shown as bulged as at 4 and formed-with a rib 5, with a slot 6 therein, connecting said bulges, the latter forming a handle for lifting the cover from the box.
- My heat treating box overcomes this disadvantage by being essentially circular in cross section as shown in Fig. 3 and provided with bulged ends as shown in Figs. 1 and 2 which presents a box without sharp edges and having substantially uniform thickness at all points whereby uniform cooling secured, as a result of which two causes, the tendency toward cracking is much reduced.
- the feet 2 serve to keep the box in an upright position and raised slightly from the floor of the furnace.
- the shape of the box is such, that when stacked they always allow open passages on all sides of the individual box thereby permitting a free circulation of the hot furnace gases through the stack.
- a box of the character described comprising a body portion and a cover therefor, said body portion having a substantially circular cross-section and rounded ends.
- a box of the character described comprising a body portion cast in a single piece and having its walls everywhere of substantially equal thickness and of externally rounded shape without reentrant angles.
- a cast metal box for the purpose described having rounded corners and edges and without reentrant angles.
- a cast metal box for the purpose described having outwardly bulging unbroken surfaced walls with rounded corners and edges.
Landscapes
- Chemical & Material Sciences (AREA)
- Engineering & Computer Science (AREA)
- Physics & Mathematics (AREA)
- Thermal Sciences (AREA)
- Crystallography & Structural Chemistry (AREA)
- Mechanical Engineering (AREA)
- Materials Engineering (AREA)
- Metallurgy (AREA)
- Organic Chemistry (AREA)
- Furnace Charging Or Discharging (AREA)
- Heat Treatments In General, Especially Conveying And Cooling (AREA)
Description
w. HlSMITH.
HEAT TREATING BOX.
APPLICAIION HLED JULY3h19I9.
1,350,421 Patented Aug. 24, 1920.
UNITED STATES PATENT OFFICE.
WILLIAM H. SMITH, OF EAST CLEVELAND, OHIO.
HEAT-TREATING BOX.
Application filed July 31, 1919.
To all whom it may concern:
Be it known that I, WVILLiAM H. SMITH, a citizen of the United States, residing at East Cleveland, in the county of Guyahoga and State of Ohio, have invented a certain new and useful Improvement in I-Ieat-Treating Boxes, of which the following is a full, clear, and exact description, reference being had to the accompanying c rawings.
This invention relates to heat treating boxes and has for its object the provision of a box of such shape as to present a uniform thickness at all points coupled with a minimum of sharp edges. Another object is to provide a box of such shape as will allow free circulation of hot gases thereabout and will stack conveniently in a furnace. Another object is to provide a box which will have a longer life by virtue of its shape. Further and more limited objects of the invention will appear in the detailed description embodied in the specification. In the drawings forming part hereof, Figure 1 is a perspective view of the box with cover removed; 2 is a longitudinal sectional view of the box with cover removed; Fig. 3 is a section on the line 33 of Fig. 2; Fig. 4 represents'the corner of a furnace showing the boxes stacked therein; and Fig. 5 is a modification showing a box adapted for small articles. Describing the various parts by reference numerals, 1 indicates the body of the box, formed of any suitable metal or alloy used for such purposes, and has pref erably integrally formed therewith the feet 2. The lid 3'is shown as bulged as at 4 and formed-with a rib 5, with a slot 6 therein, connecting said bulges, the latter forming a handle for lifting the cover from the box.
In the past it has been the custom to form heat treating boxes of essentially a rectangular shape which presented sharp edges where the sides, ends and bottom met. Upon continuous usage of such boxes, which involves heating and cooling many times, it has been found that they crack wherever there is a sharp edge. This of course renders the box useless and since they are made Specification of Letters Patent.
Patented Aug. 24, 1920.
Serial No. 314,445.
of costly material it forms an important factor in the upkeep.
My heat treating box overcomes this disadvantage by being essentially circular in cross section as shown in Fig. 3 and provided with bulged ends as shown in Figs. 1 and 2 which presents a box without sharp edges and having substantially uniform thickness at all points whereby uniform cooling secured, as a result of which two causes, the tendency toward cracking is much reduced.
The feet 2 serve to keep the box in an upright position and raised slightly from the floor of the furnace. The shape of the box is such, that when stacked they always allow open passages on all sides of the individual box thereby permitting a free circulation of the hot furnace gases through the stack.
From the foregoing it will be seen that I have provided a box of much longer life than the usual types used if made of the same material, or if desirable a cheaper material might be used which will give a life equal to that obtainable with the usual type of box and result in a lower initial cost of the box.
Having thus described my invention, what I claim is:
1. A box of the character described comprising a body portion and a cover therefor, said body portion having a substantially circular cross-section and rounded ends.
2. A box of the character described comprising a body portion cast in a single piece and having its walls everywhere of substantially equal thickness and of externally rounded shape without reentrant angles.
3. A cast metal box for the purpose described having rounded corners and edges and without reentrant angles.
4. A cast metal box for the purpose described having outwardly bulging unbroken surfaced walls with rounded corners and edges.
In testimony whereof, I hereunto ailix my signature.
WILLIAM H. SMITH.
Priority Applications (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US314445A US1350427A (en) | 1919-07-31 | 1919-07-31 | Heat-treating box |
Applications Claiming Priority (1)
Application Number | Priority Date | Filing Date | Title |
---|---|---|---|
US314445A US1350427A (en) | 1919-07-31 | 1919-07-31 | Heat-treating box |
Publications (1)
Publication Number | Publication Date |
---|---|
US1350427A true US1350427A (en) | 1920-08-24 |
Family
ID=23219976
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US314445A Expired - Lifetime US1350427A (en) | 1919-07-31 | 1919-07-31 | Heat-treating box |
Country Status (1)
Country | Link |
---|---|
US (1) | US1350427A (en) |
-
1919
- 1919-07-31 US US314445A patent/US1350427A/en not_active Expired - Lifetime
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