US25482A - Island - Google Patents
Island Download PDFInfo
- Publication number
- US25482A US25482A US25482DA US25482A US 25482 A US25482 A US 25482A US 25482D A US25482D A US 25482DA US 25482 A US25482 A US 25482A
- Authority
- US
- United States
- Prior art keywords
- thimble
- article
- former
- stock
- sides
- 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
- 238000004519 manufacturing process Methods 0.000 description 8
- 239000002184 metal Substances 0.000 description 8
- 229910052751 metal Inorganic materials 0.000 description 8
- 238000003801 milling Methods 0.000 description 6
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 4
- 229910052737 gold Inorganic materials 0.000 description 4
- 239000010931 gold Substances 0.000 description 4
- 241000212384 Bifora Species 0.000 description 2
- 229910001369 Brass Inorganic materials 0.000 description 2
- 241000220010 Rhode Species 0.000 description 2
- 239000002253 acid Substances 0.000 description 2
- 150000007513 acids Chemical class 0.000 description 2
- 239000010953 base metal Substances 0.000 description 2
- 230000003796 beauty Effects 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 238000004140 cleaning Methods 0.000 description 2
- 238000007373 indentation Methods 0.000 description 2
- 238000000034 method Methods 0.000 description 2
- 239000010970 precious metal Substances 0.000 description 2
- 230000000284 resting Effects 0.000 description 2
- 229910052709 silver Inorganic materials 0.000 description 2
- 239000004332 silver Substances 0.000 description 2
Images
Classifications
-
- D—TEXTILES; PAPER
- D05—SEWING; EMBROIDERING; TUFTING
- D05B—SEWING
- D05B91/00—Tools, implements, or accessories for hand sewing
- D05B91/04—Thimbles; Finger shields; Palm protectors
Definitions
- FIG. 13 B, and O represent views of my improved article of manufacture.
- the stock now in general use among manufacturing jewelers consists of a base metal overlaid on one or both sides, as may be necessary, with gold of sufficient thickness to resist the action of acids.
- Figs. 2, 3, 4, 5, and G represent a series of dies and formers varying slightly in shape, to the action of each of which the blank is subjected.
- Fig. 7 shows a combined die, former, and cutter by which the 4rim of the blank thimble previously turned outward is cut smooth and round.
- Fig. S shows a die with a former of such a shape that the rim of the blank will be turned toward the tip of the thimble, as the edge of a cup is turned over bv a tinmans roll.
- Fig. 9 shows the blank undergoing the process of milling on the end, the punchingformer to eect this being perfectly smooth and the bottom of the die being indented.
- the former which was used in the last operation tting the thimble perfectly is now used as a mandrel for the subsequent operations.
- the former with the thimble upon the end, is placed in a lathe-head, the milled end of the thimble resting in a back center, as lshown at ct, Fig. l2.
- the rim is then burnished down flat and smooth or milled and the sides of the thimble ornamented and milled, as shown in Figs. l0, ll, l2, and 13.
- A, Fig. 13, B, and O exhibit three patterns of thimbles, the variety of which can be increased almost indenitely.
- the new article of manufacture herein described namely, a thimble made from plated or overlaid metal, either in the common form, with fluted sides, or with sides in the form of a regular geometrical ligure, the whole article being substantially such as specified.
Description
l if
UNrTEn STATES PATENT il: EETCE.
PETER S. BISHOP, OF SMITHFIELD, RHODE ISLAND.
Specification forming part of Letters Patent No. Q'ASQ, dated September 20, 1859.l
To all whom, it may concern.-
Be it known that I, PETER S. BISHOP, of Smithfield, in the county of Providence and State of Rhode Island, have invented a certain new and useful article of manufacture, which I term a Plate Thirnble, and I do hereby declare that the following specification, taken in connection with the drawings making a part of the same, is a full, clear, and exact description thereof.
A, Fig. 13, B, and O represent views of my improved article of manufacture.
In order that the nature of my invention may be understood and to distinguish the article made by me from the thimble in common use with which in appearance it is identicle, I will proceed to state in what its novelty consists.
The stock now in general use among manufacturing jewelers consists of a base metal overlaid on one or both sides, as may be necessary, with gold of sufficient thickness to resist the action of acids. IVheneVerstock of this description'can be used the manufactured article is produced at a costfproportionally less than if -made entirely from metal of a better quality, while in point of durability the article made from the plated or overlaid metal is often preferable. All attempts at making a thimble of this description of stock have hitherto failed for the following reasons: In order for the thimble to be worn with comfort, as well as to be salable, it is necessary for the interior to be perfectly smooth and free from indentations. The universal means of accomplishing this in all gold or silver, and even in the better grades of brass thimbles, has been to place the thimble in a chuck and turn out the inside with a tool. This operation manifestly cannot be performed upon a thimble made from plate stock, and consequently unless some means are employed to obliterate or to prevent the indentations on the inner surface caused by the operation of milling a thimble made from this description of stock would from this cause be of inferior value either as an article for use or for sale.
lVithout claiming that any one of the suc! overlaid on both sides with one of the precious metals. Figs. 2, 3, 4, 5, and G represent a series of dies and formers varying slightly in shape, to the action of each of which the blank is subjected. Fig. 7 shows a combined die, former, and cutter by which the 4rim of the blank thimble previously turned outward is cut smooth and round. Fig. S shows a die with a former of such a shape that the rim of the blank will be turned toward the tip of the thimble, as the edge of a cup is turned over bv a tinmans roll. Fig. 9 shows the blank undergoing the process of milling on the end, the punchingformer to eect this being perfectly smooth and the bottom of the die being indented.
The former which was used in the last operation tting the thimble perfectly is now used as a mandrel for the subsequent operations. The former, with the thimble upon the end, is placed in a lathe-head, the milled end of the thimble resting in a back center, as lshown at ct, Fig. l2. The rim, is then burnished down flat and smooth or milled and the sides of the thimble ornamented and milled, as shown in Figs. l0, ll, l2, and 13. A, Fig. 13, B, and O, as before stated, exhibit three patterns of thimbles, the variety of which can be increased almost indenitely. The result of these operations is a thimble which when cleaned and polished is inno respect inferior in point of beauty or utilityto the thimbles made entirely from metal of the same grade as that with which the stock in the instance described is plated, and which is produced at one-third the cost of a thimble made in the usual way.
The secret of my success consists in the fact that I make use of a polished former and mandrel so closely fitted to the thimble that in the several operations of milling the appearance of ang,T indentation on the inner surface of the thimble is prevented.
That I claim as my invention, and desire to secure by Letters Patent, is-
The new article of manufacture herein described-namely, a thimble made from plated or overlaid metal, either in the common form, with fluted sides, or with sides in the form of a regular geometrical ligure, the whole article being substantially such as specified.
PETER S. BISHOP.
Witnesses:
I. PLANKINTON, WILL FLAKE.
Publications (1)
Publication Number | Publication Date |
---|---|
US25482A true US25482A (en) | 1859-09-20 |
Family
ID=2094377
Family Applications (1)
Application Number | Title | Priority Date | Filing Date |
---|---|---|---|
US25482D Expired - Lifetime US25482A (en) | Island |
Country Status (1)
Country | Link |
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US (1) | US25482A (en) |
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0
- US US25482D patent/US25482A/en not_active Expired - Lifetime
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