US268713A - Watch-crown - Google Patents
Watch-crown Download PDFInfo
- Publication number
- US268713A US268713A US268713DA US268713A US 268713 A US268713 A US 268713A US 268713D A US268713D A US 268713DA US 268713 A US268713 A US 268713A
- Authority
- US
- United States
- Prior art keywords
- crown
- cap
- push
- pin
- watch
- 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
- PCHJSUWPFVWCPO-UHFFFAOYSA-N gold Chemical compound [Au] PCHJSUWPFVWCPO-UHFFFAOYSA-N 0.000 description 12
- 229910052737 gold Inorganic materials 0.000 description 12
- 239000010931 gold Substances 0.000 description 12
- BQCADISMDOOEFD-UHFFFAOYSA-N silver Chemical compound [Ag] BQCADISMDOOEFD-UHFFFAOYSA-N 0.000 description 12
- 229910052709 silver Inorganic materials 0.000 description 12
- 239000004332 silver Substances 0.000 description 12
- 239000010953 base metal Substances 0.000 description 8
- 238000004519 manufacturing process Methods 0.000 description 8
- 239000002184 metal Substances 0.000 description 6
- 229910052751 metal Inorganic materials 0.000 description 6
- 229910000679 solder Inorganic materials 0.000 description 6
- 229910001369 Brass Inorganic materials 0.000 description 2
- 240000004006 Gomphocarpus physocarpus Species 0.000 description 2
- 210000000282 Nails Anatomy 0.000 description 2
- 241001272996 Polyphylla fullo Species 0.000 description 2
- 239000010951 brass Substances 0.000 description 2
- 210000001699 lower leg Anatomy 0.000 description 2
- 239000010970 precious metal Substances 0.000 description 2
- 230000036633 rest Effects 0.000 description 2
- 239000007787 solid Substances 0.000 description 2
Images
Classifications
-
- G—PHYSICS
- G04—HOROLOGY
- G04B—MECHANICALLY-DRIVEN CLOCKS OR WATCHES; MECHANICAL PARTS OF CLOCKS OR WATCHES IN GENERAL; TIME PIECES USING THE POSITION OF THE SUN, MOON OR STARS
- G04B3/00—Normal winding of clockworks by hand or mechanically; Winding up several mainsprings or driving weights simultaneously
- G04B3/04—Rigidly-mounted keys, knobs or crowns
- G04B3/041—Construction of crowns for rotating movement; connection with the winding stem; winding stems
Definitions
- My invention relates to watch-crowns and push-pins for watch-cases; and it consists in forming a push-pin and head of base metal and securing a covering of gold or silver or plated metal upon the same by upsetting the said gold or silver or forcing the edge ot' the baseinetal head into same, all of which is more fully set forth in the following specification and shown in the accompanying drawings, which form part thereof.
- crowns of push-pins have been made of solid gold or silver and secured upon said push-pin by solder or by screwthreads; or the said crowns have been made of base metal and simply plated. It is also common to cover nail-heads with brass pieces or caps; but in these cases there is no pushpin, the caps could not be used with watchpendants, and the caps are not secured to the nail by upsetting.
- the object of this invention is to secure to the top of a push-pin made of base metal a gold or silver cap without the use of solder, and form the same into the watch-crown.
- Figure l is au elevation of the push-pin without the cap.
- Fig. 2 is a sectional elevation of the cap.
- Fig. 3 is a plan of cap.
- Fig. 4 is a sectional elevation of the completed crown and push-pin, and
- Fig. 5 is a perspective view ofthe same.
- A is the body of the push-pin.
- B is the flange, and is circumterentially grooved around its upper edge, as at D, therebygiving a sharp circumferential edge around its lower rim, as at C.
- E is the cap, which is formed into the crown, and is adapted to be made of gold or silver.
- This cap is placed over the ilan ge B and placed between dies G and H, which force it down into position and clamp the cap around the iiange, the edge C entering circumferentially into the inner side of the body ofthe cap, as shown in Fig. 4; or the rim of the cap may be upset over the underside of the iange by the action of the dies, which squeeze the metal cap vertically, causing it to be forced bodily under the edge of the said ange, thereby changing its thickness at this part.
- the shape of the ilange B may be varied as desired without departing from my improve ment, as my invention comprehends broadly all means ot' securing the precious-metal cap or crown upon the base-metal push-pin without the use of solder or its equivalent.
- a push-pin for watches having the crown permanently secured thereon by being upset, and having the crown -rim at the bottom project below the head of the push-pin, substantially as shown and described.
- a push-pin for watches having the crown permanently upset below the head of the push-pin, the pushpin being annularly grooved on the under side of its head to fit over the pendant ot' a watch, substantially as and for the purpose specified.
- a push-pin for watches having the crown secured thereon by being upset upon the head of the pushpin, substantially as and for the purpose specitied.
- a pushpiu for watches the shank of which is made square on the bottom, and is provided at the top with a head, in combination with a gold or silver cap, which is forced upon said head and secured thereon by being upset, the outer face of said cap being cylindrical, substantially as shown.
Landscapes
- Physics & Mathematics (AREA)
- General Physics & Mathematics (AREA)
- Adornments (AREA)
Description
(No Model.)
' T. MUBLLER'.
'WATCH CROWN.l
Patented Deo. 5, 1882.
lllven 01# Zi/40W Mw m-Lnmnpher, mmm n. c.
Ens. Pho
UNITED STATES PATENT OEEICE.
WATCH-CROWN.
SPECIFICATION forming part of Letters Patent No. 268,713, dated December 5, 1882.
Application filed December 1,188l. (No model.)
lTo alt whom fit may concer-u Be it known that I, TnEoDoRE. MUELLER, oi the city and county of Philadelphia, and State of Pennsylvania, have invented an Improvementin Watch-Crowns, of which the following is a specification.
My invention relates to watch-crowns and push-pins for watch-cases; and it consists in forming a push-pin and head of base metal and securing a covering of gold or silver or plated metal upon the same by upsetting the said gold or silver or forcing the edge ot' the baseinetal head into same, all of which is more fully set forth in the following specification and shown in the accompanying drawings, which form part thereof.
Heretofore the crowns of push-pins have been made of solid gold or silver and secured upon said push-pin by solder or by screwthreads; or the said crowns have been made of base metal and simply plated. It is also common to cover nail-heads with brass pieces or caps; but in these cases there is no pushpin, the caps could not be used with watchpendants, and the caps are not secured to the nail by upsetting.
The object of this invention is to secure to the top of a push-pin made of base metal a gold or silver cap without the use of solder, and form the same into the watch-crown.
In the drawings, Figure lis au elevation of the push-pin without the cap. Fig. 2 is a sectional elevation of the cap. Fig. 3 is a plan of cap. Fig. 4 is a sectional elevation of the completed crown and push-pin, and Fig. 5 is a perspective view ofthe same.
A is the body of the push-pin.
B is the flange, and is circumterentially grooved around its upper edge, as at D, therebygiving a sharp circumferential edge around its lower rim, as at C.
E is the cap, which is formed into the crown, and is adapted to be made of gold or silver. This cap is placed over the ilan ge B and placed between dies G and H, which force it down into position and clamp the cap around the iiange, the edge C entering circumferentially into the inner side of the body ofthe cap, as shown in Fig. 4; or the rim of the cap may be upset over the underside of the iange by the action of the dies, which squeeze the metal cap vertically, causing it to be forced bodily under the edge of the said ange, thereby changing its thickness at this part. This is accomplished by making the dies stepped, as shown in dotted lines, and after the upper die has descended a certain distance the bottom rim of the cap rests upon one of the steps of the lower die, and upon the furtherdcscent of the upper die the metal of the cap is caused to change its shape just below the flange ot' the push-pin by iiowing into a space left byone ofthe said steps in the lower die. The upper circumferential edge of the cap is forced down to correspond with the groove D, as at D. The crown is then turned out, as at F, as shown in Fig. 4, and,ifdesired,milled to give a finish. The shape of the ilange B may be varied as desired without departing from my improve ment, as my invention comprehends broadly all means ot' securing the precious-metal cap or crown upon the base-metal push-pin without the use of solder or its equivalent.
Having now described my inventiomwhat I claim as new, and desire to secure by Letters Patent, is-
l. As an article of manufacture, a push-pin for watches, having the crown permanently secured thereon by being upset, and having the crown -rim at the bottom project below the head of the push-pin, substantially as shown and described.
2. As an article of manufacture, a push-pin for watches, having the crown permanently upset below the head of the push-pin, the pushpin being annularly grooved on the under side of its head to fit over the pendant ot' a watch, substantially as and for the purpose specified.
3. As an article of manufacture, a push-pin for watches, having the crown secured thereon by being upset upon the head of the pushpin, substantially as and for the purpose specitied.
4. As a new article of manufacture, a pushpiu for watches, the shank of which is made square on the bottom, and is provided at the top with a head, in combination with a gold or silver cap, which is forced upon said head and secured thereon by being upset, the outer face of said cap being cylindrical, substantially as shown.
In testimony of which invention I hereunto set my hand.
THEODORE MUELLEP'.
Witnesses H. L. ROBERTS, HENRY F. WALroN.
IOO
Publications (1)
| Publication Number | Publication Date |
|---|---|
| US268713A true US268713A (en) | 1882-12-05 |
Family
ID=2337960
Family Applications (1)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| US268713D Expired - Lifetime US268713A (en) | Watch-crown |
Country Status (1)
| Country | Link |
|---|---|
| US (1) | US268713A (en) |
-
0
- US US268713D patent/US268713A/en not_active Expired - Lifetime
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