US3257795A - Watch case - Google Patents

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Publication number
US3257795A
US3257795A US373730A US37373064A US3257795A US 3257795 A US3257795 A US 3257795A US 373730 A US373730 A US 373730A US 37373064 A US37373064 A US 37373064A US 3257795 A US3257795 A US 3257795A
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flange
integral
lower edge
wall
edge
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US373730A
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Trautz Richard
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JONELL WATCH CASE Inc
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JONELL WATCH CASE Inc
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    • 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
    • G04B37/00—Cases
    • G04B37/08—Hermetic sealing of openings, joints, passages or slits
    • 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
    • G04B37/00—Cases
    • G04B37/22—Materials or processes of manufacturing pocket watch or wrist watch cases

Definitions

  • This invention relates to watch cases, and, more particularly, to a new and improved one-piece waterproof gold wrist watch case.
  • waterproof wrist watch cases are of several types, e.g., snap-lockingcases wherein the top and back are snapped together, screw-on cases wherein the back is screwed into the top, and one-piece cases comprising a top and back soldered together.
  • a gold watch case must be made entirely of solid gold of a minimum fmeness, eg., carat or better, herein simply referred to as gold, i.e., every integral part thereof must be made of gold. Even the solder, if soldering is employed in the construction of the case, must be gold solder. As a result of the foregoing requirements and of the fact that gold is comparatively soft and expensive, conventional gold one-piece waterproof wrist watch cases have had certain serious drawbacks.
  • a watch case must include a movement mounting ring. Where a wall of the case constitutes this ring, it must be of gold and must be thick enough so that there is sufcient strength for it not to collapse in use.
  • a gold ring in order to be capable of supporting the watch movement must be of considerable thickness. This increases both the weight and cost of the case.
  • a loose movement mounting ring i.e. a ring not integral with the case, made of a non-precious metal is employed so that the gold wall of the case itself can be thinner.
  • This has its own disadvantage, namely, that an extra part is required, an extra forming operation is necessitated, and an extra assembly operation must be performed when the case is assembled with the movement. In this way, the production cost of the case is again increased.
  • Another disadvantage of using a separate movement mounting ring is that a number of time-consuming turning operations are required to form the top and back of the case so that they may be correctly intertted with the separate ring therein, and in this way the cost of labor in manufacturing the case, and thus the cost of the case itself, is increased.
  • the present invention accordingly consists in the features of construction, combinations of elements and arrangement of parts which will be exemplified in the watch case hereinafter described and of which the scope of application will be indicated in the appended claims.
  • FIG. 1 is a vertical central sectional view through a crystal topped one-piece waterproof gold watch case embodying the instant invention, a conventional watch movement being schematically shown disposed therein;
  • FIG. 2 is an exploded partially sectional side view of the watch case, crystal and movement shown in FIG. l; and v FIG. 3 is a top view of the watch case shown l, the watch movement having been removed.
  • the reference numeral 10 denotes a one-piece Waterproof gold vwrist water case embodying the instant invention.
  • Said case includes a top 12 and back 14 (see FIG. 2) both of which are made from a suitable grade of gold, e.g.,10 carat in B1G.
  • the top 12 is of any attractive configuration, e.g.,'
  • the upper edge of the side wall 16 is integral with an inwardly and upwardly sloping upper annular flange 20 disposed at an angle of more than 90 with respect to the inner surface of the side wall, for example 120.
  • the upper flange 20 has a larger inner diameter than the lower flange 18 and includes an integral downwardly and slightly outwardly, e.g. 8, sloping segment 22 at its-inner edge.
  • the lower edge of the segment 22 in turn is integral with an inwardly extending annular crystal-mounting seat 24 disposed at right angles to the wall 16.
  • the top 12 By thus forming the top 12 to constitute an endless side wall with integral upper and lower short inwardly extending peripheral flanges, a channel shaped configuration is imparted thereto that provides a substantial degree of strength by virtue of the mutually reinforcing action of the wall 'and flanges so that even with a wall and flange thickness in the order of as little as 0.012 the top is strong enough to withstand the vicissitudes of use. Thereby a considerable saving in labor and gold is achieved.
  • the inner diameter ,of the lower flange 18 is of such size as to snugly receive the upstanding side mounting ring wall 26 of the Iback 14.
  • the lower edge of the wall 26 is integral with an outwardly and slightly upwardly extending annular retroverted flange 28 disposed at such an angle with respect tothe wall 26 that with said wall 26 fully inserted into the top through the lower flange 18, the upper surface of the flange 28mates with the lower surface of the flange 18 adjacent the inner edge thereof.
  • the flange 28 is integral with a flat circular bottom 30 the periphery of which is sloped upwardly so as to impart a smooth and pleasing appearance to the case.
  • the peripheral 'configuration of the back i.e., the formation of the same ing registered when the back is fully inserted in and secured to the top.
  • Each of the top and back is formed by conventional bending and turning apparatus from a single piece of sheet gold.
  • the back is hermetically and permanently secured to the top by soldering the flange 28 to the flange 18 with gold solder.
  • the peripheral configuration of the case due to the mutually angular relationship of the interconnected members 16, 18, 20, 26 and 28 is almostya complete hollow box and its considerable strength is greatly in excess of wh-at would be expected from the thin met-al alone.
  • a standard watch movement 36 including an annular protruding squat rib 38 intermediate the top and bottom surfaces thereof is snugly slidably receivable in the back 14 within the mounting ring 26 thereof with the rib 38 of the movement resting on the top surface of said ring.
  • the movement is inserted through the top 12, the seat 24 of the top being of greater diameter than the rib 38 ofthe movement.
  • the stem of the movement extends through the opening 32 and slot 34.
  • a downwardly concave crystal 40 fabricated, for example, from a clear plastic such as an acrylic resin is snapped into position in the top with the lower edge thereof received in the seat 24 and within the segment 22.
  • said lower edge has a diameter slightly greater than the diameter of the upper edge of the segment land the area of the crystal adjacent the lower edge thereof is shaped so as to fit tightly (hermetically) in the segment after the crystal has been constricted and then snapped into place.
  • a watch case constructed in accordance with the pres-- ent invention can be manufactured with a minimum of gold and a minimum of manufacturing operations and thus of labor. In this way, the cost of production is considerably reduced while the attractive-ness and utility of the case is in no way lessened.
  • the case is sufficiently strong to support the watch movement and yet is attractive and compact in appearance.
  • a one-piece waterproof watch case ofl precious metal, said watch case comprising:
  • said watch case further comprising a back (I) fabricated from a single piece of thin sheet material and constituting (II) an upstanding circular side mounting ring wall including a lower edge,
  • (C) means permanently hermetically sealing said third ange to said first iange in the area of abutment thereagainst without theuse of a gasket.
  • a top (I) fabricated from a single piece of thin sheet material and constituting (II) a continuous side wall having (III) inwardly extending upper and lower flanges integral with its top and bottom edges respectively to define therewith a channel-shaped crosssectional periphery,
  • said watch case further comprising a back (I) fabricated from a single piece of thin sheet material and constituting (II) a bottom having (III) a mounting ring in one piece therewith and perpendicular thereto,
  • said mounting ring being adapted to receive and support a watch movement
  • (C) means permanently hermetically sealing the flange 6 of the back to the lower flange of the top without the References Cited by the Examiner Se 0f a gasket UNITED STATES PATENTS 5.
  • a onep1ece waterproof watch case as set forth 1n 327,025 2/1958 Switzerland.

Description

June 28, 1966 R. TRAUTZ 3,257,795
WATCH CASE Filed June 9, 1964 I N VE NTO R. ,Qc/Mp@ @ef/rz United States Patent This invention relates to watch cases, and, more particularly, to a new and improved one-piece waterproof gold wrist watch case.
Generally, waterproof wrist watch cases are of several types, e.g., snap-lockingcases wherein the top and back are snapped together, screw-on cases wherein the back is screwed into the top, and one-piece cases comprising a top and back soldered together.
A gold watch case must be made entirely of solid gold of a minimum fmeness, eg., carat or better, herein simply referred to as gold, i.e., every integral part thereof must be made of gold. Even the solder, if soldering is employed in the construction of the case, must be gold solder. As a result of the foregoing requirements and of the fact that gold is comparatively soft and expensive, conventional gold one-piece waterproof wrist watch cases have had certain serious drawbacks. For example, a watch case must include a movement mounting ring. Where a wall of the case constitutes this ring, it must be of gold and must be thick enough so that there is sufcient strength for it not to collapse in use. A gold ring in order to be capable of supporting the watch movement must be of considerable thickness. This increases both the weight and cost of the case. To overcome this problem, conventionally, a loose movement mounting ring, i.e. a ring not integral with the case, made of a non-precious metal is employed so that the gold wall of the case itself can be thinner. This, however, has its own disadvantage, namely, that an extra part is required, an extra forming operation is necessitated, and an extra assembly operation must be performed when the case is assembled with the movement. In this way, the production cost of the case is again increased. Another disadvantage of using a separate movement mounting ring is that a number of time-consuming turning operations are required to form the top and back of the case so that they may be correctly intertted with the separate ring therein, and in this way the cost of labor in manufacturing the case, and thus the cost of the case itself, is increased.
It is a principal object of the present invention to provide a one-piece waterproof gold wrist watch case which requires fewer stamping and turning operations for manufacturing than conventional one-piece waterproof gold wrist watch cases.
It is another object of the present invention to provide a watch case of the character described which requires less gold than conventional watch cases of a like type but is just as strong and resistant t0 collapse as such 'conventional watch cases.
It is another object of the present invention to provide a watch case of the character described which is rugged, long-lasting, and pleasing in appearance.
It is another object of the present invention to provide a watch case of the character described which can be easily and inexpensively mass produced.
It is another object of the present invention to provide a watch case of the character described which permits a large saving of gold and labor to be effected.
It is another object of the present invention to provide a watch case of the character described which has all of the advantages of conventional one-piece waterproof gold watch cases but none of the previously-mentioned disadvantages thereof.
These andvarious other objects and advantages of the present invention will become apparent to the reader in the following description.
The present invention accordingly consists in the features of construction, combinations of elements and arrangement of parts which will be exemplified in the watch case hereinafter described and of which the scope of application will be indicated in the appended claims.
In the accompanying drawings in which is shown one of the various possible embodiments of the present invention,
FIG. 1 is a vertical central sectional view through a crystal topped one-piece waterproof gold watch case embodying the instant invention, a conventional watch movement being schematically shown disposed therein;
FIG. 2 is an exploded partially sectional side view of the watch case, crystal and movement shown in FIG. l; and v FIG. 3 is a top view of the watch case shown l, the watch movement having been removed.
Referring now in detail to the drawings, the reference numeral 10 denotes a one-piece Waterproof gold vwrist water case embodying the instant invention. Said case includes a top 12 and back 14 (see FIG. 2) both of which are made from a suitable grade of gold, e.g.,10 carat in B1G.
gold. The top 12 is of any attractive configuration, e.g.,'
circular, and includes an upright annular endless side wall 16 integral at its lower edge (as viewed in FIGS. 1 and 2) with an inwardly and downwardly sloping lower annular flange 18. The flange is disposed at an angle of slightly more than 90 with respect to the inner surface of the side Wall, eg., 100. Y
The upper edge of the side wall 16 is integral with an inwardly and upwardly sloping upper annular flange 20 disposed at an angle of more than 90 with respect to the inner surface of the side wall, for example 120. The upper flange 20 has a larger inner diameter than the lower flange 18 and includes an integral downwardly and slightly outwardly, e.g. 8, sloping segment 22 at its-inner edge. The lower edge of the segment 22 in turn is integral with an inwardly extending annular crystal-mounting seat 24 disposed at right angles to the wall 16.
By thus forming the top 12 to constitute an endless side wall with integral upper and lower short inwardly extending peripheral flanges, a channel shaped configuration is imparted thereto that provides a substantial degree of strength by virtue of the mutually reinforcing action of the wall 'and flanges so that even with a wall and flange thickness in the order of as little as 0.012 the top is strong enough to withstand the vicissitudes of use. Thereby a considerable saving in labor and gold is achieved.
The inner diameter ,of the lower flange 18 is of such size as to snugly receive the upstanding side mounting ring wall 26 of the Iback 14. The lower edge of the wall 26 is integral with an outwardly and slightly upwardly extending annular retroverted flange 28 disposed at such an angle with respect tothe wall 26 that with said wall 26 fully inserted into the top through the lower flange 18, the upper surface of the flange 28mates with the lower surface of the flange 18 adjacent the inner edge thereof. The flange 28 is integral with a flat circular bottom 30 the periphery of which is sloped upwardly so as to impart a smooth and pleasing appearance to the case.
. In a manner somewhat similar to the top 12, the peripheral 'configuration of the back, i.e., the formation of the same ing registered when the back is fully inserted in and secured to the top.
Each of the top and back is formed by conventional bending and turning apparatus from a single piece of sheet gold. The back is hermetically and permanently secured to the top by soldering the flange 28 to the flange 18 with gold solder. At this time the peripheral configuration of the case due to the mutually angular relationship of the interconnected members 16, 18, 20, 26 and 28 is almostya complete hollow box and its considerable strength is greatly in excess of wh-at would be expected from the thin met-al alone.
A standard watch movement 36 including an annular protruding squat rib 38 intermediate the top and bottom surfaces thereof is snugly slidably receivable in the back 14 within the mounting ring 26 thereof with the rib 38 of the movement resting on the top surface of said ring. The movement is inserted through the top 12, the seat 24 of the top being of greater diameter than the rib 38 ofthe movement.
The stem of the movement extends through the opening 32 and slot 34.
A downwardly concave crystal 40 fabricated, for example, from a clear plastic such as an acrylic resin is snapped into position in the top with the lower edge thereof received in the seat 24 and within the segment 22. As is conventional, said lower edge has a diameter slightly greater than the diameter of the upper edge of the segment land the area of the crystal adjacent the lower edge thereof is shaped so as to fit tightly (hermetically) in the segment after the crystal has been constricted and then snapped into place.
A watch case constructed in accordance with the pres-- ent invention can be manufactured with a minimum of gold and a minimum of manufacturing operations and thus of labor. In this way, the cost of production is considerably reduced while the attractive-ness and utility of the case is in no way lessened. The case is sufficiently strong to support the watch movement and yet is attractive and compact in appearance.
It thus will be seen that there is provided a device which achieves the several objects of the present invention and which is well `adapted to meet the conditions of practical use.
As various possible embodiments might be made of the above invention, and as various changes might be made in the embodiment above set forth, it is to be understood that all matter herein described or shown in the accompanying drawings is to be interpreted as illustrative and not in a limiting sense.
lHaving thus described the present invention, there is claimed as new and desired to be' secured by Letters -Patent:
1. A one-piece waterproof watch case ofl precious metal, said watch case comprising:
(A) atop (I) fabricated from a single piece of thin sheet material and constituting (II) a circular side wall having (a) an upper edge, (b) a lower edge, and (c) an aperture for the stem of a watch movement, (III) a first annular inwardly extending flange integral with the lower edge of said wall,
(a) said first iiange having a free inner edge, (1V) a second annular inwardly extending flange integral with the upper edge of said wall,
(a) said second iiange having a free inner edge defining a crystal passing opening, (V)v a downwardly and outwardly projecting segment integral with the free inner edge of the second ange,
(a) said segment including a lower edge, (VI) 'an inwardly projecting annular crystal receiving seat integral with said lower edge of said segment,
(B) said watch case further comprising a back (I) fabricated from a single piece of thin sheet material and constituting (II) an upstanding circular side mounting ring wall including a lower edge,
(a) the shape of said ring wall matching the shape of the free inner edge of the first ange,
(b) the lower edge of said ring wall abutting said free inner edge of the first liange,
(c) said ring wall being adapted to receive 'and support a watch movement,
(III) an outwardly extending third annular flange (-a)' integral with the lower edge of the ring wall, and
(b) abutting the undersurface of the first annular iiange adjacent the free inner edge thereof, and
(IV) a bottom integral with said third flange,
(V) said ring wall of the back having a stem aperture registered with the stem aperture in the side wall of the top, and
(C) means permanently hermetically sealing said third ange to said first iange in the area of abutment thereagainst without theuse of a gasket.
2. A one-piece waterproof watch case as set forth in claim 1 wherein the watch case is fabricated from gold and wherein the means permanently hermetically sealing the third flange to the first iiange is gold solder.
3. A one-piece waterproof watch case as set forth in claim 1 wherein the first annular ange slopes downwardly, the second annular flange slopes upwardly, and the third annular flange slopes upwardly to match the slope of the rst annular ange.
4. A one-piece waterproof watch case of precious metal, said watch case comprising:
(A) a top (I) fabricated from a single piece of thin sheet material and constituting (II) a continuous side wall having (III) inwardly extending upper and lower flanges integral with its top and bottom edges respectively to define therewith a channel-shaped crosssectional periphery,
(a) the upper ange being shaped to hermetically engage the periphery of a watch crystal,
(b) the lower flange having a free inner edge defining a first opening,
(c) the upper ange having a free inner edge defining a second opening, (d)` the first opening being smaller than the f second opening, (B) said watch case further comprising a back (I) fabricated from a single piece of thin sheet material and constituting (II) a bottom having (III) a mounting ring in one piece therewith and perpendicular thereto,
(a) the shape of the mounting ring matching the shape of the free inner edge of the lower ange, Y
(b) said mounting ring having a lower edge abutting said free inner edge of the lower liange, 1
(c) said mounting ring being adapted to receive and support a watch movement, and
(IV) an outwardly extending ange at the juncture of the ring and the bottom,
(a) said outwardly extending flange of the bottom lying against the lower ilange of the top, and
(C) means permanently hermetically sealing the flange 6 of the back to the lower flange of the top without the References Cited by the Examiner Se 0f a gasket UNITED STATES PATENTS 5. A one-plece waterproof watch case as set forth in claim 4 wherein the case is fabricated from gold and 2,380,215 7/1945 Cfdlra ne' 373'730 wherein the means permanently hermetically sealing the 5 21542090 4/1951 O Neill 58' 90 alrge of the back to the lower flange of the top is gold FOREIGN PATENTS so er l 307,382 7/ 1955 Sw1tzerland. 6. A onep1ece waterproof watch case as set forth 1n 327,025 2/1958 Switzerland.
claim 5 wherein the sheet of which the top is constituted is a gold sheet in the order of 0.012" thick and the sheet 10 LOUIS 1 CAPOZI Primary Mmm-nem of which the back is constituted is a gold sheet in the order of 0.010 thick. LEO SMILOW, Examiner.
G. F. BAKER, Assistant Examiner.

Claims (1)

1. A ONE-PIECE WATERPROOF WATCH CASE OF PRECIOUS METAL, SAID WATCH CASE COMPRISING: (A) A TOP (I) FABRICATED FROM A SINGLE PIECE OF THIN SHEET MATERIAL AND CONSTITUTING (II) A CIRCULAR SIDE WALL HAVING (A) AN UPPER EDGE, (B) A LOWER EDGE, AND (C) AN APERTURE FOR THE STEM OF A WATCH MOVEMENT, (III) A FIRST ANNULAR INWARDLY EXTENDING FLANGE INTEGRAL WITH THE LOWER EDGE OF SAID WALL, (A) SAID FIRST FLANGE HAVING A FREE INNER EDGE, (IV) A SECOND ANNULAR INWARDLY EXTENDING FLANGE INTEGRAL WITH THE UPPER EDGE OF SAID WALL, (A) SAID SECOND FLANGE HAVING A FREE INNER EDGE DEFINING A CRYSTAL PASSING OPENING, (V) A DOWNWARDLY AND OUTWARDLY PROJECTING SEGMENT INTEGRAL WITH THE FREE INNER EDGE OF THE SECOND FLANGE, (A) SAID SEGMENT INCLUDING A LOWER EDGE, (VI) AN INWARDLY PROJECTING ANNULAR CRYSTAL RECEIVING SEAT INTEGRAL WITH SAID LOWER EDGE OF SAID SEGMENT, (B) SAID WATCH CASE FURTHER COMPRISING A BACK (I) FABRICATED FROM A SINGLE PIECE OF THIN SHEET MATERIAL AND CONSTITUTING (II) AN UPSTANDING CIRCULAR SIDE MOUNTING RING WALL INCLUDING A LOWER EDGE, (A) THE SHAPE OF SAID RING WALL MATCHING THE SHAPE OF THE FREE INNER EDGE OF THE FIRST FLANGE, (B) THE LOWER EDGE OF SAID RING WALL ABUTTING SAID FREE INNER EDGE OF THE FIRST FLANGE, (C) SAID RING WALL BEING ADAPTED TO RECEIVE AND SUPPORT A WATCH MOVEMENT, (III) AN OUTWARDLY EXTENDING THIRD ANNULAR FLANGE (A) INTEGRAL WITH THE LOWER EDGE OF THE RING WALL, AND (B) ABUTTING THE UNDERSURFACE OF THE FIRST ANNULAR FLANGE ADJACENT THE FREE INNER EDGE THEREOF, AND (IV) A BOTTOM INTEGRAL WITH SAID THIRD FLANGE, (V) SAID RING WALL OF SAID BACK HAVING A STEM APERTURE REGISTERED WITH THE STEM APERTURE IN THE SIDE WALL OF THE TOP, AND (C) MEANS PERMANENTLY HERMETICALLY SEALING SAID THIRD FLANGE TO SAID FIRST FLANGE IN THE AREA OF ABUTMENT THEREAGAINST WITHOUT THE USE OF A GASKET.
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Cited By (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6138485A (en) * 1984-07-12 1986-02-24 モントル・ラドー・ソシエテ・アノニム Wristwatch case
US20140362673A1 (en) * 2013-06-11 2014-12-11 David Earl Watch with enclosed crown
EP2988178A3 (en) * 2014-08-22 2016-10-05 Bulova Corporation Manufacturing method for watch case
CN106406070A (en) * 2014-10-21 2017-02-15 宝路华公司 Watches

Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2380215A (en) * 1944-09-26 1945-07-10 Caldara Nicholas Watch
US2547090A (en) * 1949-09-10 1951-04-03 Benrus Watch Company Inc Waterproof watchcase
CH307382A (en) * 1955-01-21 1955-05-31 Roamer Watch Co Sa Waterproof watch case.
CH327025A (en) * 1955-09-29 1958-01-15 Grimm Jean Sealing device

Patent Citations (4)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2380215A (en) * 1944-09-26 1945-07-10 Caldara Nicholas Watch
US2547090A (en) * 1949-09-10 1951-04-03 Benrus Watch Company Inc Waterproof watchcase
CH307382A (en) * 1955-01-21 1955-05-31 Roamer Watch Co Sa Waterproof watch case.
CH327025A (en) * 1955-09-29 1958-01-15 Grimm Jean Sealing device

Cited By (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
JPS6138485A (en) * 1984-07-12 1986-02-24 モントル・ラドー・ソシエテ・アノニム Wristwatch case
JPH0435036B2 (en) * 1984-07-12 1992-06-09 Rado Montres Sa
US20140362673A1 (en) * 2013-06-11 2014-12-11 David Earl Watch with enclosed crown
EP2988178A3 (en) * 2014-08-22 2016-10-05 Bulova Corporation Manufacturing method for watch case
CN106406070A (en) * 2014-10-21 2017-02-15 宝路华公司 Watches

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