US164892A - Improvement in modes of making sheet-metal rings - Google Patents
Improvement in modes of making sheet-metal rings Download PDFInfo
- Publication number
- US164892A US164892A US164892DA US164892A US 164892 A US164892 A US 164892A US 164892D A US164892D A US 164892DA US 164892 A US164892 A US 164892A
- Authority
- US
- United States
- Prior art keywords
- improvement
- modes
- rings
- metal rings
- making sheet
- 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
- 238000004519 manufacturing process Methods 0.000 description 12
- 239000002699 waste material Substances 0.000 description 8
- 238000000034 method Methods 0.000 description 6
- 238000005520 cutting process Methods 0.000 description 4
- 239000000463 material Substances 0.000 description 4
- 241000490025 Schefflera digitata Species 0.000 description 2
- 235000015250 liver sausages Nutrition 0.000 description 2
- 238000003825 pressing Methods 0.000 description 2
- 238000005476 soldering Methods 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21C—MANUFACTURE OF METAL SHEETS, WIRE, RODS, TUBES OR PROFILES, OTHERWISE THAN BY ROLLING; AUXILIARY OPERATIONS USED IN CONNECTION WITH METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL
- B21C37/00—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape
- B21C37/06—Manufacture of metal sheets, bars, wire, tubes or like semi-manufactured products, not otherwise provided for; Manufacture of tubes of special shape of tubes or metal hoses; Combined procedures for making tubes, e.g. for making multi-wall tubes
- B21C37/08—Making tubes with welded or soldered seams
Definitions
- My invention relates to an improved process for manufacturing metallic rings, which is particularly intended for making the rings of lamp-shade holders, but which may be also applicable to the man u t'acture of rings forother purposes.
- the blank is cut out from sheet metal in flat annular form, and the edges are turned up by drawing or stamping in dies. This commonly involves'a waste of all the metal cut from the corners of a square I outside of the ring, and all that cut from the inside of the ring, which waste amounts to about four-fifths of the metal employed in the manufacture, and can generally only be utilized by remelting.
- the object of my'invcntion is to avoid the waste of material referred to; and. it consists in a novel method of making the ring, by first cutting from the sheet a strip of metal, and bringing the ends thereof together to form a hoop, and then pressing or stamping the said hoop in suitable dies to give it the desired shape, whereby the whole of the metal is utilized.
- Figure l is a vertical section of a lampshade holder, in, which the shade-supportin g ring is constructed according to my invention;
- Fig. 2 represents the strip as cut from the sheet.
- Fig. 3 represents the strip with its ends secured together to form a hoop.
- Fig. 4 is a profile sectional view of the ring.
- A represents the collar, 13 the arms,
- the blank for the ring 0 is cut from the sheet in flat annular form, as before described.
- a strip of metal, D of the shape shown in Fig. 2, and then secure the ends thereof together, by soldering or otherwise, to form a hoop, E, as shown in Fig. 3.
- This hoop is then placed in a suitable die or dies, and is pressed, stamped, or drawn into the shape shown in Fig.
Landscapes
- Engineering & Computer Science (AREA)
- Mechanical Engineering (AREA)
- Shaping Metal By Deep-Drawing, Or The Like (AREA)
Description
s."n. WILMOT Mode of Making Sheet-Metal Rings. No.l64,892.
Pate'nted lune 22,1875.
ifibwssas I THE GRAPHIC C(LPHOTD-LITILSS 8.41 PARK PLACEJLY.
UNITED STATES PATENT QFFIGE.
WILMOT MANUFACTURING COMPANY, OF SAME PLACE.
IMPROVEMENT lN MODES OF MAKING SHEET-METAL RINGS.
Specification forming part of Letters Patent No. 164,892, dated J mm 22, 1875 application filed April 10, 1875.
To all whom it may concern:
Be it known that I, SAMUEL R. WILMor, of Bridgeport, in the county of Fairfield and State of Connecticut, have invented an Improvement in the Manufacture of Metallic Rings; and I do hereby declare that the following is a full, clear, and exact description of the same, reference being had to the accompanying drawing forming part of this specification.
My invention relates to an improved process for manufacturing metallic rings, which is particularly intended for making the rings of lamp-shade holders, but which may be also applicable to the man u t'acture of rings forother purposes.
In the ordinary method of making rings for lamp-shade holders, the blank is cut out from sheet metal in flat annular form, and the edges are turned up by drawing or stamping in dies. This commonly involves'a waste of all the metal cut from the corners of a square I outside of the ring, and all that cut from the inside of the ring, which waste amounts to about four-fifths of the metal employed in the manufacture, and can generally only be utilized by remelting.
The object of my'invcntion is to avoid the waste of material referred to; and. it consists in a novel method of making the ring, by first cutting from the sheet a strip of metal, and bringing the ends thereof together to form a hoop, and then pressing or stamping the said hoop in suitable dies to give it the desired shape, whereby the whole of the metal is utilized. A
In the accompanying drawing, Figure l is a vertical section of a lampshade holder, in, which the shade-supportin g ring is constructed according to my invention; Fig. 2 represents the strip as cut from the sheet. Fig. 3 represents the strip with its ends secured together to form a hoop. Fig. 4 is a profile sectional view of the ring. I
In Fig. 1, A represents the collar, 13 the arms,
and G the shade'supporting ring, of a lampshade holder. In the ordinary method the blank for the ring 0 is cut from the sheet in flat annular form, as before described.
In making the ring according to my invention, I first cut from the sheet a strip of metal, D, of the shape shown in Fig. 2, and then secure the ends thereof together, by soldering or otherwise, to form a hoop, E, as shown in Fig. 3. This hoop is then placed in a suitable die or dies, and is pressed, stamped, or drawn into the shape shown in Fig. 4, by which process the portion of the hoop below the line or :v is gathered inward, and contracted to form the shade-supporting flange, f, and the extreme inner edge is turned up to form a stiffening-rim, g, while the portion above the line a; a: is slightly expanded and turned outward, to form a conical receptacle, h, for the shade, and the extreme upper edge is turned outward to form an upper stiffening flange, 2', thus makin g a shade-supportin g ring of the usual shape.
By cutting the blanks from the sheets in strips the entire sheet of metal is utilized, and there is no waste of material whatever.
Although the invention is shown herein as applied to themanufacture of rings for lampshade holders, it will be seen that the process need not be confined to such particular use, but is applicable to the making of rings for various purposes.
What I claim as new, and desire to secure by Letters Patent, is-- The within-described mode of forming rings for supporting lamp-shades, the same consisting in first bringing the strip into the form of a hoop, and then subjecting said hoop to pressure in a die of the desired shape, as herein shown and described, for the purpose specified.
SAMUEL a. winner.
Witnesses:
Gno. A. STAPLES, ISAAC G. FOWLER.
Publications (1)
Publication Number | Publication Date |
---|---|
US164892A true US164892A (en) | 1875-06-22 |
Family
ID=2234301
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US164892D Expired - Lifetime US164892A (en) | Improvement in modes of making sheet-metal rings |
Country Status (1)
Country | Link |
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US (1) | US164892A (en) |
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3787960A (en) * | 1971-10-28 | 1974-01-29 | Gen Motors Corp | Process for manufacturing curved channeled members |
-
0
- US US164892D patent/US164892A/en not_active Expired - Lifetime
Cited By (1)
Publication number | Priority date | Publication date | Assignee | Title |
---|---|---|---|---|
US3787960A (en) * | 1971-10-28 | 1974-01-29 | Gen Motors Corp | Process for manufacturing curved channeled members |
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