US171198A - Improvement in making sheet-metal ware - Google Patents
Improvement in making sheet-metal ware Download PDFInfo
- Publication number
- US171198A US171198A US171198DA US171198A US 171198 A US171198 A US 171198A US 171198D A US171198D A US 171198DA US 171198 A US171198 A US 171198A
- Authority
- US
- United States
- Prior art keywords
- metal
- improvement
- making sheet
- sheet
- metal ware
- 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
- 239000002184 metal Substances 0.000 title description 20
- 229910052751 metal Inorganic materials 0.000 title description 20
- 239000002965 rope Substances 0.000 description 10
- 229920002456 HOTAIR Polymers 0.000 description 4
- 238000000137 annealing Methods 0.000 description 4
- 241000268741 Pax Species 0.000 description 2
- 229910052802 copper Inorganic materials 0.000 description 2
- 239000010949 copper Substances 0.000 description 2
- RYGMFSIKBFXOCR-UHFFFAOYSA-N copper Chemical compound [Cu] RYGMFSIKBFXOCR-UHFFFAOYSA-N 0.000 description 2
- 238000004519 manufacturing process Methods 0.000 description 2
- 239000000463 material Substances 0.000 description 2
- 239000002023 wood Substances 0.000 description 2
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
- C21D8/00—Modifying the physical properties by deformation combined with, or followed by, heat treatment
- C21D8/06—Modifying the physical properties by deformation combined with, or followed by, heat treatment during manufacturing of rods or wires
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21J—FORGING; HAMMERING; PRESSING METAL; RIVETING; FORGE FURNACES
- B21J5/00—Methods for forging, hammering, or pressing; Special equipment or accessories therefor
Definitions
- the ball a is suspended by the rope 12 over the pulley c, and raised and dropped, as usual, and the rod or rope d held by the workman serves to guide the ball a to the proper place as it falls.
- the curb 0 supports the edges of the sheet of metal f that is to form the kettle bottom or other similar article, and steam either under pressure or superheated, or hot air, is admitted within the curb e. A pipe, h, and cockt" are shown for this purpose. 1
- the efl'ect of the heat is to sufficiently soften JOHN TRAGESE R.
Description
J. TRAGESER v MAKING SHEET METAL WARE.
Patented Dec. 14, 1875.
NJEIERS, PHoTb-LITHOGIAPMER. WASHINGTON. D C.
UNITED STATES PATENT OFFICE.
JOHN TBAGESER, or NEw YORK, N. Y.
lM PRoVEME NT IN'MAKING SHEET-METAL WARE.
Specification forming pax t of Letters Patent No. 171,198, dated December 14, 1875; application filed 7 November 8, 1875.,
To all whom it may concern:
Be it known that I, JOHN TRAGESER, of the city and State of New York, have invented an Improvement in the Manufacture of Sheet- Metal Kettle Bottoms, Domes, or similar articles, of which the following is a specification a In making concave bottoms for stills, kettles, &c., it has been usual heretofore to place the sheet upon a circular curb, above the center of which there is a pulley with a rope or chain suspending a ball, and there is a clamp or clutch mechanism, by which the rope is drawn upon to lift the weight, and there is a guide-rope to such weight, by means of which the workman guides the weight as it is allowed to fall, so that it strikes the metal in the proper place, and bends the same downwardly. This operation is well known, and is termed bumping! In this operation the metal requires annealing before the work is commenced, and frequently several times during its progress. This is costly, especially with large sheets, and a wood fire usually has to be employed at the risk of fire to the manufactory.
In cold weather it is almost impossible to properly bump these kettle bottoms, even after the metal has been annealed.
I have discovered that, when superheated steam or hot air is introduced within the supporting-curb and beneath the sheet of copper, the same is so softened that the bumping operation can be performed from first to last without annealing, and in a much more perfect and expeditious manner than heretofore, thus effecting a saving in cost of materials, labor, and time, and preserving greater uniformity in the metal than in the mode heretofore pursued.
In the drawing, I have shown a side view of the apparatus and section of the curb and sheet of metal.
The ball a is suspended by the rope 12 over the pulley c, and raised and dropped, as usual, and the rod or rope d held by the workman serves to guide the ball a to the proper place as it falls. The curb 0 supports the edges of the sheet of metal f that is to form the kettle bottom or other similar article, and steam either under pressure or superheated, or hot air, is admitted within the curb e. A pipe, h, and cockt" are shown for this purpose. 1
The efl'ect of the heat is to sufficiently soften JOHN TRAGESE R.
Witnesses Units. H. SMITH, GEo. T. PINcKNEY.
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US171198A true US171198A (en) | 1875-12-14 |
Family
ID=2240605
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US171198D Expired - Lifetime US171198A (en) | Improvement in making sheet-metal ware |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US171198A (en) |
-
0
- US US171198D patent/US171198A/en not_active Expired - Lifetime
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