US130603A - Improvement in dies for swaging up watch-cases - Google Patents
Improvement in dies for swaging up watch-cases Download PDFInfo
- Publication number
- US130603A US130603A US130603DA US130603A US 130603 A US130603 A US 130603A US 130603D A US130603D A US 130603DA US 130603 A US130603 A US 130603A
- Authority
- US
- United States
- Prior art keywords
- die
- watch
- improvement
- cover
- cases
- 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
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- 239000002184 metal Substances 0.000 description 16
- 238000004519 manufacturing process Methods 0.000 description 6
- 230000003466 anti-cipated Effects 0.000 description 4
- 230000015572 biosynthetic process Effects 0.000 description 4
- 230000000694 effects Effects 0.000 description 4
- 238000005755 formation reaction Methods 0.000 description 4
- 239000011159 matrix material Substances 0.000 description 4
- 230000002093 peripheral Effects 0.000 description 4
- 241000490025 Schefflera digitata Species 0.000 description 2
- 229910000831 Steel Inorganic materials 0.000 description 2
- 238000007906 compression Methods 0.000 description 2
- 230000000875 corresponding Effects 0.000 description 2
- 238000006073 displacement reaction Methods 0.000 description 2
- 235000015250 liver sausages Nutrition 0.000 description 2
- 239000000203 mixture Substances 0.000 description 2
- 230000004048 modification Effects 0.000 description 2
- 238000006011 modification reaction Methods 0.000 description 2
- 229910000679 solder Inorganic materials 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
- 239000010959 steel Substances 0.000 description 2
Images
Classifications
-
- B—PERFORMING OPERATIONS; TRANSPORTING
- B21—MECHANICAL METAL-WORKING WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D—WORKING OR PROCESSING OF SHEET METAL OR METAL TUBES, RODS OR PROFILES WITHOUT ESSENTIALLY REMOVING MATERIAL; PUNCHING METAL
- B21D1/00—Straightening, restoring form or removing local distortions of sheet metal or specific articles made therefrom; Stretching sheet metal combined with rolling
- B21D1/06—Removing local distortions
Definitions
- A denotes the male die, which I employ,'in connection with a correspondin g matrix, in the impressing or forming up of certain portions of a watch-case, this die being a cylindrical block of steel of the proper shape.
- the cover of a watch-case has heretofore, under certain patented methods practiced by myself, been impressed or formed with the die and mold abovenamed, with the exception of the hingebearer, which has been. subsequently added to it. As this bearer extends inwardly toward the center of the cover upon its concave side, such. cover could not be detached from the die if a solid piece was added to the latter for the purpose of producing the bearer.
- a cavity or depression, B of any suitable shape for securely holding within it an auxiliary die, which is shown at O in the drawing as a metal block of a size to fill the cavity, and of a general external form to constitute a continuation of the periphery of the die A.
- the die A and its sectional block or die 0 are to be provided with any suitable joint or means of preventing displacement or change of position of the two, the means herein shown to effect this result being to add to the inner end of the block 0 and to the adjacent end or bottom of the recess B a projecting pin, a, which pins enter, respectively, coinciding sockets b formed in each die to receive them.
- the recess 18, as herein shown, is semicircular in a cross-section but this form is not arbitrary, as it may be polygonal, as shown in Fig. 5 of the drawin g, and provided with one steady-pin, or otherwise shaped and provided, so long as its peripheral portion corresponds with that of the main die in general outline.
- the peripheral portion of the auxiliary die is formed with a shallow depression or notch, d, cut in its face,
- this depression being of a size and shape corresponding to that of the hinge-bearer, which it is to fashion.
Description
c. TH'lE-RY.
improvement in D'ies for Swaging-Up Watch-Cases No. 130,603,. Patented M520, 1872.
wlne we a. 7X Mu- PATE T OFFICE.
CHARLES L. THIERY, OF BOSTON, MASSACHUSETTS.
IMPROVEMENT IN DIES FOR SWAGING UP WATCH-CASES.
Specification forming part of Letters Patent No. 130,603, dated August 20, 1872.
Specification describing an Improvement in Dies for the Manufacture of WatchOases, invented by CHARLES LOUIS THIERY, of Boston, Sufl'olk county, Massachusetts.
In the manufacture of watch-cases by machinery under the system upon which this improvement is based the elementary portions of the case-that is, the center and covers are each struck up or formed from a homogeneous piece of metal. In fashioning the cover containing the hinge-bearer or stay it has been found necessary heretofore to braze or solder to the cover the small piece of metal requisite to constitute this bearer, as the system of manufacture above referred to has not anticipated and provided for the inability to remove the cover from the male die, after the formation-of the bearer, which projects inwardly toward the center of the cover and of the die. To provide for this emergency is the object of this improvement; and to this end I form the portion of the male die which produces this bearer in a piece of metal independent of such die, and let it into the periphery of the latter in such manner as to be readily detached therefrom and removed from it adhering to the cover after the formation of the bearer.
The drawing accompanying this specification represents, in Figure 1, an elevation, and in Fig. 2 a section of a male die containing my improvement; Fig. 3 being a perspective view of the major portion of such die, and Fig. 4 a perspective view of the lesser or auxiliary portion thereof; while Fig. 5 isa perspective view of a modification of the auxiliary die, to be hereinafter explained.
In the drawing, A denotes the male die, which I employ,'in connection with a correspondin g matrix, in the impressing or forming up of certain portions of a watch-case, this die being a cylindrical block of steel of the proper shape. As before premised, the cover of a watch-case has heretofore, under certain patented methods practiced by myself, been impressed or formed with the die and mold abovenamed, with the exception of the hingebearer, which has been. subsequently added to it. As this bearer extends inwardly toward the center of the cover upon its concave side, such. cover could not be detached from the die if a solid piece was added to the latter for the purpose of producing the bearer. To effect my present object I create, in one side of the working end or head of the die A, a cavity or depression, B, of any suitable shape for securely holding within it an auxiliary die, which is shown at O in the drawing as a metal block of a size to fill the cavity, and of a general external form to constitute a continuation of the periphery of the die A. The die A and its sectional block or die 0 are to be provided with any suitable joint or means of preventing displacement or change of position of the two, the means herein shown to effect this result being to add to the inner end of the block 0 and to the adjacent end or bottom of the recess B a projecting pin, a, which pins enter, respectively, coinciding sockets b formed in each die to receive them. The recess 18, as herein shown, is semicircular in a cross-section but this form is not arbitrary, as it may be polygonal, as shown in Fig. 5 of the drawin g, and provided with one steady-pin, or otherwise shaped and provided, so long as its peripheral portion corresponds with that of the main die in general outline. The peripheral portion of the auxiliary die is formed with a shallow depression or notch, d, cut in its face,
as shown in the drawing, this depression being of a size and shape corresponding to that of the hinge-bearer, which it is to fashion.
In usethe descent of the die into the matrix and the compression of the metal of the cover about the former, in the formation of such cover, impresses the said metal into the depression d, and by this means produces the hinge-bearer, the auxiliary die adhering to the interior of the finished cover, and, being withdrawn by and with it, forms the main die, and after removal from the cover being rcreturned to its recess b.
In the system of manufacturingwatch-cases by producingtheir main portions in one homogeneous piece of metal, as practiced by myself under various Letters Patent issued to me, I have found that the metal blank, as originally employed, did not contain sufficient stock to produce the hinge-bearer, thumb-piece, &c., in the perfect condition in which my system anticipated; and to remedy this objection I form the punch, with which I out the blanks,
1 the blank as formed into a shallow cup, in
readiness to be introduced to the machine which molds it into perfect shape, the projections a b being, by the action of the machine, reduced and fashioned into the desired object.
. Claim.
A male die for forming that portion of a watch-case or cover carrying the hinge-bearer, consisting of the auxiliary removable die G, constructed as herein described, in combination with the main die A, substantially as set forth.
CHARLES LOUIS THIER-Y.
Witnesses:
F. OURTIs, W. E. BOARDMAN.
Publications (1)
Publication Number | Publication Date |
---|---|
US130603A true US130603A (en) | 1872-08-20 |
Family
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US130603D Expired - Lifetime US130603A (en) | Improvement in dies for swaging up watch-cases |
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- US US130603D patent/US130603A/en not_active Expired - Lifetime
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