US2489570A - Plate setting for cap jewels - Google Patents

Plate setting for cap jewels Download PDF

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Publication number
US2489570A
US2489570A US702001A US70200146A US2489570A US 2489570 A US2489570 A US 2489570A US 702001 A US702001 A US 702001A US 70200146 A US70200146 A US 70200146A US 2489570 A US2489570 A US 2489570A
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Prior art keywords
plate
setting
bevelled
cap
contour
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Expired - Lifetime
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US702001A
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Gerber Henri
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Omega Louis Brandt and Frere SA
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Omega Louis Brandt and Frere SA
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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
    • G04B31/00—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor
    • G04B31/004—Bearings; Point suspensions or counter-point suspensions; Pivot bearings; Single parts therefor characterised by the material used
    • G04B31/008—Jewel bearings
    • G04B31/0085—Jewel bearings with cap jewel only
    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16B—DEVICES FOR FASTENING OR SECURING CONSTRUCTIONAL ELEMENTS OR MACHINE PARTS TOGETHER, e.g. NAILS, BOLTS, CIRCLIPS, CLAMPS, CLIPS OR WEDGES; JOINTS OR JOINTING
    • F16B5/00—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them
    • F16B5/02—Joining sheets or plates, e.g. panels, to one another or to strips or bars parallel to them by means of fastening members using screw-thread

Definitions

  • This invention relates to plate settings for cap jewels.
  • a plate-setting of oblong shape for the cap jewel that can be secured at one end by means of a screw, the cap jewel being set in the other end.
  • This construction has the disadvantage that the said plate-setting does not always lie perfectly flat on the surface provided as a seat with the result that the face of the cap jewel comes to lie at an angle to the axis of the balance, thus giving rise to defective working of the pivot of the verge, not to mention the fact that the oil will not easily remain on the pivot.
  • an object of my invention is to ensure perfect seating of the said plate. Another object is to reduce the space taken up by this plate to a minimum. I obtain these aims by providing the feature that the contour of the rounded head portion forming the setting is bevelled, and that the tail end, likewise provided with bevelled surfaces, opens in the shape of a V, the head portion fitting into a bevelled undercut recess formed in the plate covering the balance and the V shaped tail end being held against the said plate by means of a screw with inverted cone head, so that on tightening the screw the plate-setting will be wedged into its proper place, and consequently the cap jewel will lie flat in place.
  • the attached drawing shows, by way of example, an embodiment of the plate-setting according to the present invention.
  • Fig. 1 is a longitudinal section along the line II in Fig. 2, through the axes of the cap jewel and the wedge screw.
  • Fig. 2 is a plan view.
  • the plate I is milled so as to form a seat for the plate-setting.
  • a hole 3 is drilled in one end of this seat to receive the balance jewel, not represented, and near the other end, an internal thread 4 is made to take the wedge screw 5 with inverted cone head.
  • the wall of the recess forming the seat spreads outward toward the bottom.
  • the head portion 4 of the plate setting has corresponding but, with respect to the bottom surface of the recess, more obtusely bevelled contour and fits into the said recess.
  • a hole having the same as the balance staff is drilled in the platesetting, in which the cap jewel 8 is set.
  • the semicircular contour of the head portion forming the setting is continued by two rectilinear segments 8; at the other end, i. e. at the opposite end with respect to the hole for the cap jewel, the plate-setting opens in the shape of a V, ill, with 2 rounded base, its inner edges being obtusely bevelled.
  • the sides E l of the plate-setting 2 can be made curved to receive the jaws of pick pincers used to take hold of it when in the recess.
  • a plate having an undercut recess, a cap jewel, a plate setting comprising a rounded hollow head portion having a bevelled contour and receiving said cap jewel and fitting by its bevelled contour into said undercut recess, said plate setting further comprising a tail portion at the opposite end with a V-shaped opening provided with a bevelled inner edge, and a screw with a head in contact with said bevelled inner edge to force said plate-setting flat against the bottom of said undercut recess.
  • a plate having a bevelled undercut recess a plate setting comprising a rounded head portion having a semi-circular bevelled contour and a hole concentric with said contour, a cap jewel set into said hole, said plate setting fitting by its bevelled contour into said bevelled undercut recess and comprising at the end opposite to said head portion a tail portion with a V-shaped opening provided with a bevelled inner edge, and a screw screwed into said plate and provided with an inverted cone head in contact with said bevelled inner edge to force said plate-setting flat against the bottom of said bevelied undercut recess.
  • a plate having a bevelled undercut recess, an oblong plate setting comprising a rounded head portion having a semi-eircular bevelled contour and a hole concentric with said contour, a cap jewel set into said hole, said plate setting fitting by its bevelled contour into said bevelled undercut recess and comprising a tail portion with a V-shaped opening provided with a bevelled inner edge, two rectilinear segments continuing said semi-circular contour, and curved portions connecting said rectilinear segments and said tail portion to permit pick pincers to take hold of said plate setting, and a screw screwed into said plate and provided with an inverted cone head in contact with said bevelled inner edge to force said plate-setting flat against the bottom of said bevelled undercut recess.
  • a. plate having an undercut recess, a cap jewel, a plate setting comprising a hollow head portion receiving said cap jewel and fitting by its contour into said undercut recess in such a manner that on a lateral adjusting of said plate-setting the contour of said head portion ls displaced along the contour of said undercut recess towards the bottom of said recess, said plate setting further comprising a tail portion at the opposite end with a notch provided with a bevelled inner edge, and a screw with a. head in contact with said bevelled inner edge to force said plate-setting flat against the bottom of said undercut recess by lateral and axial pressure of said screw onto said plate setting.

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  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Physics & Mathematics (AREA)
  • General Physics & Mathematics (AREA)
  • Mechanical Engineering (AREA)
  • Adornments (AREA)
  • Hinges (AREA)

Description

Nov. 29, 1949 H. GERBER 2,489,570
PLATE-SETTING FOR CAP JEWELS Filed Oct. 8, 1946 F- 2 Awa /"06 A-Wz/ 456555 MJM Patented Nov. 29, 1949 aisatvo PLATE SETTING FOR CAP JEWELS Henri Gerber, Bienne, Switzerland, assignor to Omega Louis Brandt & Frere S. A., a joint-stock company Application October 8, 1946, Serial No. 702,001 In Switzerland October 11, 1945 4 Claims. 1
This invention relates to plate settings for cap jewels. In small size watches it is often necessary to provide a plate-setting of oblong shape for the cap jewel, that can be secured at one end by means of a screw, the cap jewel being set in the other end.
This construction has the disadvantage that the said plate-setting does not always lie perfectly flat on the surface provided as a seat with the result that the face of the cap jewel comes to lie at an angle to the axis of the balance, thus giving rise to defective working of the pivot of the verge, not to mention the fact that the oil will not easily remain on the pivot.
The aim of my invention is to remedy these inconveniences. Thus, an object of my invention is to ensure perfect seating of the said plate. Another object is to reduce the space taken up by this plate to a minimum. I obtain these aims by providing the feature that the contour of the rounded head portion forming the setting is bevelled, and that the tail end, likewise provided with bevelled surfaces, opens in the shape of a V, the head portion fitting into a bevelled undercut recess formed in the plate covering the balance and the V shaped tail end being held against the said plate by means of a screw with inverted cone head, so that on tightening the screw the plate-setting will be wedged into its proper place, and consequently the cap jewel will lie flat in place.
The attached drawing shows, by way of example, an embodiment of the plate-setting according to the present invention.
Fig. 1 is a longitudinal section along the line II in Fig. 2, through the axes of the cap jewel and the wedge screw.
Fig. 2 is a plan view.
The plate I is milled so as to form a seat for the plate-setting. A hole 3 is drilled in one end of this seat to receive the balance jewel, not represented, and near the other end, an internal thread 4 is made to take the wedge screw 5 with inverted cone head. The wall of the recess forming the seat spreads outward toward the bottom. The head portion 4 of the plate setting has corresponding but, with respect to the bottom surface of the recess, more obtusely bevelled contour and fits into the said recess. A hole having the same as the balance staff is drilled in the platesetting, in which the cap jewel 8 is set. The semicircular contour of the head portion forming the setting is continued by two rectilinear segments 8; at the other end, i. e. at the opposite end with respect to the hole for the cap jewel, the plate-setting opens in the shape of a V, ill, with 2 rounded base, its inner edges being obtusely bevelled.
The screw 5 tightens on the bevelled edge of the V-shaped portion IS, pushing the plate-setting 2 longitudinally toward the bevelled end of :le recess. In this manner, the plate-setting is pressed down, under the action of compounded forces, on to its seat, and the cap jewel is consequently held flat in position.
The sides E l of the plate-setting 2 can be made curved to receive the jaws of pick pincers used to take hold of it when in the recess.
What I claim is:
1. In a watch movement, a plate having an undercut recess, a cap jewel, a plate setting comprising a rounded hollow head portion having a bevelled contour and receiving said cap jewel and fitting by its bevelled contour into said undercut recess, said plate setting further comprising a tail portion at the opposite end with a V-shaped opening provided with a bevelled inner edge, and a screw with a head in contact with said bevelled inner edge to force said plate-setting flat against the bottom of said undercut recess.
2. In a watch movement, a plate having a bevelled undercut recess, a plate setting comprising a rounded head portion having a semi-circular bevelled contour and a hole concentric with said contour, a cap jewel set into said hole, said plate setting fitting by its bevelled contour into said bevelled undercut recess and comprising at the end opposite to said head portion a tail portion with a V-shaped opening provided with a bevelled inner edge, and a screw screwed into said plate and provided with an inverted cone head in contact with said bevelled inner edge to force said plate-setting flat against the bottom of said bevelied undercut recess.
3. In a watch movement, a plate having a bevelled undercut recess, an oblong plate setting comprising a rounded head portion having a semi-eircular bevelled contour and a hole concentric with said contour, a cap jewel set into said hole, said plate setting fitting by its bevelled contour into said bevelled undercut recess and comprising a tail portion with a V-shaped opening provided with a bevelled inner edge, two rectilinear segments continuing said semi-circular contour, and curved portions connecting said rectilinear segments and said tail portion to permit pick pincers to take hold of said plate setting, and a screw screwed into said plate and provided with an inverted cone head in contact with said bevelled inner edge to force said plate-setting flat against the bottom of said bevelled undercut recess.
4. In a watch movement, a. plate having an undercut recess, a cap jewel, a plate setting comprising a hollow head portion receiving said cap jewel and fitting by its contour into said undercut recess in such a manner that on a lateral adjusting of said plate-setting the contour of said head portion ls displaced along the contour of said undercut recess towards the bottom of said recess, said plate setting further comprising a tail portion at the opposite end with a notch provided with a bevelled inner edge, and a screw with a. head in contact with said bevelled inner edge to force said plate-setting flat against the bottom of said undercut recess by lateral and axial pressure of said screw onto said plate setting.
HENRI GERBER.
REFERENCES CITED The following references are of record in the file of this patent:
FOREIGN PATENTS Number Country Date 42,750 Switzerland Feb. 10, 1908 96,498 Switzerland Oct. 16, 1922 104,372 Switzerland May 1, 1924
US702001A 1945-10-11 1946-10-08 Plate setting for cap jewels Expired - Lifetime US2489570A (en)

Applications Claiming Priority (4)

Application Number Priority Date Filing Date Title
CH257782T 1945-10-11
CH624878X 1945-10-11
CH2489570X 1945-10-11
CH934349X 1945-10-11

Publications (1)

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US2489570A true US2489570A (en) 1949-11-29

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US702001A Expired - Lifetime US2489570A (en) 1945-10-11 1946-10-08 Plate setting for cap jewels

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US (1) US2489570A (en)
CH (1) CH257782A (en)
FR (1) FR934349A (en)
GB (1) GB624878A (en)

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US42750A (en) * 1864-05-17 Improved molasses-cup
US96498A (en) * 1869-11-02 Frank j
US104372A (en) * 1870-06-14 Improvement in lamps

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US42750A (en) * 1864-05-17 Improved molasses-cup
US96498A (en) * 1869-11-02 Frank j
US104372A (en) * 1870-06-14 Improvement in lamps

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Publication number Publication date
FR934349A (en) 1948-05-19
CH257782A (en) 1948-10-31
GB624878A (en) 1949-06-17

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