US86467A - Egbert w - Google Patents
Egbert w Download PDFInfo
- Publication number
- US86467A US86467A US86467DA US86467A US 86467 A US86467 A US 86467A US 86467D A US86467D A US 86467DA US 86467 A US86467 A US 86467A
- Authority
- US
- United States
- Prior art keywords
- die
- box
- hardening
- charcoal
- face
- 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
- 239000003610 charcoal Substances 0.000 description 10
- 238000000034 method Methods 0.000 description 6
- 239000004927 clay Substances 0.000 description 4
- 229910052570 clay Inorganic materials 0.000 description 4
- 239000012530 fluid Substances 0.000 description 4
- 238000010276 construction Methods 0.000 description 2
- 239000000428 dust Substances 0.000 description 2
- 238000007654 immersion Methods 0.000 description 2
- 238000002360 preparation method Methods 0.000 description 2
- 238000005496 tempering Methods 0.000 description 2
Images
Classifications
-
- C—CHEMISTRY; METALLURGY
- C23—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; CHEMICAL SURFACE TREATMENT; DIFFUSION TREATMENT OF METALLIC MATERIAL; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL; INHIBITING CORROSION OF METALLIC MATERIAL OR INCRUSTATION IN GENERAL
- C23C—COATING METALLIC MATERIAL; COATING MATERIAL WITH METALLIC MATERIAL; SURFACE TREATMENT OF METALLIC MATERIAL BY DIFFUSION INTO THE SURFACE, BY CHEMICAL CONVERSION OR SUBSTITUTION; COATING BY VACUUM EVAPORATION, BY SPUTTERING, BY ION IMPLANTATION OR BY CHEMICAL VAPOUR DEPOSITION, IN GENERAL
- C23C8/00—Solid state diffusion of only non-metal elements into metallic material surfaces; Chemical surface treatment of metallic material by reaction of the surface with a reactive gas, leaving reaction products of surface material in the coating, e.g. conversion coatings, passivation of metals
- C23C8/04—Treatment of selected surface areas, e.g. using masks
Definitions
- a fire-proof box is 'first prepared, a little longer and wider than the length and width of the die, and about the same in depth as the depth of the die...
- a layer of pulverized charcoal Into the bottom of this box is placed a layer of pulverized charcoal. Then the face of the die is placed upon the surliwe of the charcoal-dust, (after smearing the die-face with a preparation of ivory or bone-black;) then fi1ling-up the side and end space with charcoal, closely packed, to a point near the top edge of the box; then filling the remaining space, from the edge of the box to the edge of the die, with fire cla-y.
- the box is laid on the grate of a. furnace, and a fire kindled over and around it, and heated to a temperature to produce a white heat on the upper surface of the die, (the bottom proper, of the die,) after which the box with the die is removed and allowed to stand until.
- the exposed surface has so far cooled as to prevent it from hardening by immersion in hardening-fluids.
- the die is quickly lifted from the box and immersed in the hardening-fluid, the result of which is, the thee of the die will be hardened, so as to resist the action of afile, while the base, or bottom proper of the die, will remain susceptible to the action 'of'a file.
- Figure 2 is a section cutlengthwise through the centre of the box, showing the box, charcoal, die, and fire-clay.
- c isthe box, which is made larger in width and breadth than the die, for the purpose of providing packing room for charcoal.
- the depth of the box is about the same depth of the die, so that when the die isplaced upon the packing, the upper side will be above the side of the box.
- . 'b is the charcoal-packing, which surrounds the me, (under side, sides, and ends,) nearly to the upper edge thereof 0 is the die.
- d is the fire-clay, which closes the-space over the charcoal between the edge of the box and the edge of the die.. 1
- Iain enabled tocarbonize the face of the die, and decarbonizeihe base or bottom of the die, and prevent'any scale from forming on the face, and harden the face without hardening the base, thus doing away with the ordinary process of first hardening and then tempering the die, whereby so many dies are cracked and utterly destroyed.
Description
E. W. SPERRY.
HARDENING 1115s.
Patented Feb. 2,1869.
tluit EGBERT W. SPERRY, OF .WOLCCTTVIL'LE, CONNECTICUT.-
Lam Patent No. 86,467, dated February 2, 1869.
IMPROVEMENT IN HARDENIH'G- DIES.
{Elie Schedule referred to in these Letters Patent and making part of the same.
To all wham t't ma/y concern Be it known that I, EGBERT W. SPERRY, ,of 'W'olcottville, county of Litchfield, and State of Connecticnt, have invented certain new and useful Improvements in Hardening Dies; and to 'enableothers skilled in the art to make and use the same, I will proceed to describe its construction and operation, by referring to the drawings, in which the same lettersindicate like partsin each ofthe figures.
The nature of this invention consists in the mode or process of hardening dies, as follows:
A fire-proof box is 'first prepared, a little longer and wider than the length and width of the die, and about the same in depth as the depth of the die... Into the bottom of this box is placed a layer of pulverized charcoal. Then the face of the die is placed upon the surliwe of the charcoal-dust, (after smearing the die-face with a preparation of ivory or bone-black;) then fi1ling-up the side and end space with charcoal, closely packed, to a point near the top edge of the box; then filling the remaining space, from the edge of the box to the edge of the die, with fire cla-y.
. After this has been done, the box is laid on the grate of a. furnace, and a fire kindled over and around it, and heated to a temperature to produce a white heat on the upper surface of the die, (the bottom proper, of the die,) after which the box with the die is removed and allowed to stand until. the exposed surface has so far cooled as to prevent it from hardening by immersion in hardening-fluids. Then the die is quickly lifted from the box and immersed in the hardening-fluid, the result of which is, the thee of the die will be hardened, so as to resist the action of afile, while the base, or bottom proper of the die, will remain susceptible to the action 'of'a file.-
In the accompanying drawings- Figure l is abox, with the die placed therein upside or face down.
Figure 2 is a section cutlengthwise through the centre of the box, showing the box, charcoal, die, and fire-clay.
c isthe box, which is made larger in width and breadth than the die, for the purpose of providing packing room for charcoal. The depth of the box is about the same depth of the die, so that when the die isplaced upon the packing, the upper side will be above the side of the box.
. 'b is the charcoal-packing, which surrounds the me, (under side, sides, and ends,) nearly to the upper edge thereof 0 is the die.
d is the fire-clay, which closes the-space over the charcoal between the edge of the box and the edge of the die.. 1
Thus Iain enabled tocarbonize the face of the die, and decarbonizeihe base or bottom of the die, and prevent'any scale from forming on the face, and harden the face without hardening the base, thus doing away with the ordinary process of first hardening and then tempering the die, whereby so many dies are cracked and utterly destroyed.
I believe I have thus shown the nature, operation, and advantage of this invention, so as to enable others skilled in the artto make and use the same therefrom.
. What I claim, therefore, and desire to secure by Letteis Patent, 'is V The process of hardening dies, substantiallyas shown and described.
E. W. SPERRY. [L. s.] Witnesses:
E. W. Buss, JEREMY W. Buss.
Publications (1)
Publication Number | Publication Date |
---|---|
US86467A true US86467A (en) | 1869-02-02 |
Family
ID=2155956
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US86467D Expired - Lifetime US86467A (en) | Egbert w |
Country Status (1)
Country | Link |
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US (1) | US86467A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100283817A1 (en) * | 2004-01-21 | 2010-11-11 | Silverbrook Research Pty Ltd | Printer print engine with cradled cartridge unit |
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0
- US US86467D patent/US86467A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US20100283817A1 (en) * | 2004-01-21 | 2010-11-11 | Silverbrook Research Pty Ltd | Printer print engine with cradled cartridge unit |
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