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US3129569A - Base with radially movable clamp for detachably mounting stones - Google Patents

Base with radially movable clamp for detachably mounting stones Download PDF

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Publication number
US3129569A
US3129569A US140478A US14047861A US3129569A US 3129569 A US3129569 A US 3129569A US 140478 A US140478 A US 140478A US 14047861 A US14047861 A US 14047861A US 3129569 A US3129569 A US 3129569A
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United States
Prior art keywords
locking member
base
stone
arms
rotation
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Expired - Lifetime
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US140478A
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Bob B Ballantyne
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Classifications

    • A—HUMAN NECESSITIES
    • A44—HABERDASHERY; JEWELLERY
    • A44C—PERSONAL ADORNMENTS, e.g. JEWELLERY; COINS
    • A44C17/00—Gems or the like
    • A44C17/02—Settings for holding gems or the like, e.g. for ornaments or decorations
    • A44C17/0208—Settings for holding gems or the like, e.g. for ornaments or decorations removable
    • Y—GENERAL TAGGING OF NEW TECHNOLOGICAL DEVELOPMENTS; GENERAL TAGGING OF CROSS-SECTIONAL TECHNOLOGIES SPANNING OVER SEVERAL SECTIONS OF THE IPC; TECHNICAL SUBJECTS COVERED BY FORMER USPC CROSS-REFERENCE ART COLLECTIONS [XRACs] AND DIGESTS
    • Y10—TECHNICAL SUBJECTS COVERED BY FORMER USPC
    • Y10T—TECHNICAL SUBJECTS COVERED BY FORMER US CLASSIFICATION
    • Y10T24/00—Buckles, buttons, clasps, etc.
    • Y10T24/36—Button with fastener
    • Y10T24/3651—Separable

Definitions

  • a primary object of the present invention is to provide a mounting base for gem stones having improved means for engaging and holding the stones in a set position.
  • Another object is to provide a device of the type described which facilitates rapid mounting of precious stones.
  • the present invention is embodied in structure comprising a body member having a stone supporting surface in which is provided converging slots. Projecting through these slots are bezels which comprise angular extensions of spring arms connected to a common locking member rotatably mounted in the body member.
  • the spring arms assume a selected curvature, and the ends thereof opposite their bezel ends are connected to the rotatable locking member in an off-center arrangement whereby, upon rotation of the locking member said bezel ends are moved to a closed stone-holding position.
  • FIGURE 1 is a top plan View of the present mounting base showing the locking member in its over-center locked position for clamping a stone on the base;
  • FIGURE 2 is a side elevational view of the mounting base with parts thereof broken away and showing the locking member in its FIGURE 1 position;
  • FIGURE 3 is a fragmentary bottom plan View of the present device
  • FIGURE 4 is a top plan view showing the parts in unlocked or open position.
  • FIGURE 5 is a side-elevational view with parts broken away showing the device in its FIGURE 4 position.
  • the present mounting base comprises a body member 16 which as best apparent in FIGURES 2 and 5 assumes a hollow construction and has a peripheral defining side wall 12, a top wall 14 forming a supporting surface for a stone l6, and a bottom wall 18 having an upwardly offset portion 20 forming a bottom recess 22. Offset portion 20 is centrally apertured at 24.
  • a locking member 28 Rotatably mounted in the aperture 24 is a locking member 28 having a bottom flange 30 engageable in recess 22.
  • locking member 28 is hollow, having a top wall 32. The parts are arranged such that the bottom surfaces of the members and 28 are substantially flush.
  • a transverse finger gripping bar 34, FIGURE 3, is provided across the bottom of member 28 to facilitate manual turning thereof.
  • Latch arms 36 Attached to the top wall 32 of the locking member 28 are the ends of a plurality of latch arms 36 having bezel or angular portions 38 which project through slots 40 in the top wall 14 of mounting base 10.
  • Latch arms 36 comprise fiexible spring elements which may be formed of a spring steel wire and which in a preferred structure assume substantially a closed U-shape in their relaxed condition.
  • the attached ends of the spring arms are rotatable with the locking member 23 from an unlocked or open position, FIGURE 4, to a locked or closed position, FIGURE 1, these positions of the latch arms being shown in dotted lines.
  • the arms 36 have an angular end portion 42 for attachment to the top wall 32 of the locking member as by means of an enlarged head or riveted portion 44.
  • Each of the spring arms has a generally upwardly curved intermediate portion 46 and a substantially straight portion 48 leading into the bezel and engageable with the under surface of top wall 14 to stabilize the bezel. Since the bezels 38 project through the slots 40 and are angular in construction, they serve to connect the body member 10 and locking member 28 together.
  • the arms 36 are connected to the locking member 28 in an off-center position, i.e., adjacent the peripheral edge whereby upon rotation of the locking member the attached end of the arms are carried around the central pivot point which for purposes of illustration is designated by the numeral 50, FIGURE 1.
  • the points of attachment for the arms 36 are associated with the positioning and spacing of slots 40 in the top wall 14 of housing 10, radially outward from the pivot point 50, whereby upon rotating the locking member 28 through approximately degrees the points of attachment for the spring arms with the locking member will be carried around to a point such that the pivot axis 50 of the locking member is disposed within the spring arms as determined by an imaginary straight line 52, FIGURE 1, subtending the curve of each arm between the point of attachment of the spring arms and their bezels as confined in the slots.
  • Stop means are employed for limiting rotation of member 28 after it has passed its over-center position to prevent relaxing of the spring arms by excessive rotation beyond the over-center positon.
  • off-set portion 20 of the bottom wall 18 is provided with an integral upright stop tab 54 and the rotatable locking member 28 has a laterally projecting finger 56 adapted for engagement with the said tab in the selected stop position of rotation.
  • the slots 40 are directed at a specific angle and the bezels 38 are also specifically angularly directed relative to the adjacent arm portion 48 whereby the bezels will slide freely in the slots as the locking member approaches its over-center stopped position and will be biased substantially radially into the stone.
  • the locking member 28 is rotated counter-clockwise to its FIGURE 4 or bezel open position. This is a rest position of the locking member since the curved portion of the spring arms abuts the inner surface wall 12 and the ends of these arms cannot move closer together to rotate the locking member in a counterclockwise direction.
  • the stone is positioned on the top wall 14 of base 10 and locking member 28 then rotated. clockwise to its over-center stop position.
  • the bezels are drawn radially inward into engagement with the stone.
  • the spring arms are flexed to apply an inward resilient clamping or gripping engagement with the stone.
  • the member 28 is locked in position by over-center action of the springs and will remain in such locked position until it is forcefully rotated in the opposite direction.
  • a mounting base for gem stones comprising a base member having a supporting surface for a stone, a locking member-secured rotatably to the base on the side opposite that of the stone supporting surface, and having a center of rotation with respect to said base member and flexible resilient spring clamp arms each respectively secured at one end to the locking member and having at the other end clamp means projecting through one of a plurality of radially elongated slots in the stone supporting surface for engagement with a stone, the slots being disposed radially outward from an axis of rotation passing through said center of rotation and said base and the arms being curved about said axis of rotation and secured to the locking member at points radially outward from said center and spaced therearound, each said arm defining a line subtending the curve of said each arm between the respective point and slot associated therewith, said base, locking member and arms being constructed and arranged so that said locking member is rotatable with respect to said base member sufficiently to move said arms so that their respective subtendiug lines are movable each from a
  • the mounting base of claim 1 including interengageable stop means on the base and locking member for limting rotation of the locking member in said locking direction.
  • clamp means comprise angular projections which serve to secure the locking member to the base member.

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  • Clamps And Clips (AREA)

Description

April 21, 1964 B. B. BALLANTYNE BASE WITH RADIALLY MOVABLE CLAMP FOR DETACHABLY MOUNTING STONES Filed Sept. 25, 1961 MN m N 1%. h;
INVENTOK BYz-zf uafzgr United States Patent C) 3,129,569 BASE WITH RADIALLY MOVABLE CLAMP FOR DETACHABLY MOUNTING STONES Bob B. Ballantyne, Rte. 1, Box 1044, Sandy, Greg. Fiied Se t. 25, 1961, Ser. No. 140,478 3 Claims. (CI. 63-29) This invention relates to new and useful improvements in jewelry setting structure and more particularly pertains to a mounting base especially suitable for setting gem stones in broaches, bracelets, bolo ties and the like.
A primary object of the present invention is to provide a mounting base for gem stones having improved means for engaging and holding the stones in a set position.
Another object is to provide a device of the type described which facilitates rapid mounting of precious stones.
It is a more particular object of the present invention to provide a mounting base for gem stones having resilient means which positively clamp the gem stone in position and which have automatic adjustment to accommodate stones of different size and of varying shapes, and furthermore to provide a mounting base of the type described having a portion connected to the resilient means and capable of being locked in an over-center, stone holding position merely by rotation thereof.
Briefly stated the present invention is embodied in structure comprising a body member having a stone supporting surface in which is provided converging slots. Projecting through these slots are bezels which comprise angular extensions of spring arms connected to a common locking member rotatably mounted in the body member. The spring arms assume a selected curvature, and the ends thereof opposite their bezel ends are connected to the rotatable locking member in an off-center arrangement whereby, upon rotation of the locking member said bezel ends are moved to a closed stone-holding position.
The invention will be better understood and additional objects thereof will become more apparent from the accompanying specification and claims considered together with the accompanying drawings wherein like numerals of reference indicate like parts and wherein:
FIGURE 1 is a top plan View of the present mounting base showing the locking member in its over-center locked position for clamping a stone on the base;
FIGURE 2 is a side elevational view of the mounting base with parts thereof broken away and showing the locking member in its FIGURE 1 position;
FIGURE 3 is a fragmentary bottom plan View of the present device;
FIGURE 4 is a top plan view showing the parts in unlocked or open position; and
FIGURE 5 is a side-elevational view with parts broken away showing the device in its FIGURE 4 position.
Referring particularly to the drawings, the present mounting base comprises a body member 16 which as best apparent in FIGURES 2 and 5 assumes a hollow construction and has a peripheral defining side wall 12, a top wall 14 forming a supporting surface for a stone l6, and a bottom wall 18 having an upwardly offset portion 20 forming a bottom recess 22. Offset portion 20 is centrally apertured at 24.
Rotatably mounted in the aperture 24 is a locking member 28 having a bottom flange 30 engageable in recess 22.
In a preferred construction, locking member 28 is hollow, having a top wall 32. The parts are arranged such that the bottom surfaces of the members and 28 are substantially flush. A transverse finger gripping bar 34, FIGURE 3, is provided across the bottom of member 28 to facilitate manual turning thereof.
Attached to the top wall 32 of the locking member 28 are the ends of a plurality of latch arms 36 having bezel or angular portions 38 which project through slots 40 in the top wall 14 of mounting base 10. Latch arms 36 comprise fiexible spring elements which may be formed of a spring steel wire and which in a preferred structure assume substantially a closed U-shape in their relaxed condition. As will be more apparent hereinafter, the attached ends of the spring arms are rotatable with the locking member 23 from an unlocked or open position, FIGURE 4, to a locked or closed position, FIGURE 1, these positions of the latch arms being shown in dotted lines.
As viewed in side-elevation, FIGURES 2 and 5, the arms 36 have an angular end portion 42 for attachment to the top wall 32 of the locking member as by means of an enlarged head or riveted portion 44. Each of the spring arms has a generally upwardly curved intermediate portion 46 and a substantially straight portion 48 leading into the bezel and engageable with the under surface of top wall 14 to stabilize the bezel. Since the bezels 38 project through the slots 40 and are angular in construction, they serve to connect the body member 10 and locking member 28 together.
The arms 36 are connected to the locking member 28 in an off-center position, i.e., adjacent the peripheral edge whereby upon rotation of the locking member the attached end of the arms are carried around the central pivot point which for purposes of illustration is designated by the numeral 50, FIGURE 1. The points of attachment for the arms 36 are associated with the positioning and spacing of slots 40 in the top wall 14 of housing 10, radially outward from the pivot point 50, whereby upon rotating the locking member 28 through approximately degrees the points of attachment for the spring arms with the locking member will be carried around to a point such that the pivot axis 50 of the locking member is disposed within the spring arms as determined by an imaginary straight line 52, FIGURE 1, subtending the curve of each arm between the point of attachment of the spring arms and their bezels as confined in the slots. Therefore, since the ends of the spring arms are moved around to enclose the axis of the locking member within the springs, an overcenter condition is reached whereby the locking member rather than tending to return to its original position tends to continue its rotation past the over-center position thereof.
Stop means are employed for limiting rotation of member 28 after it has passed its over-center position to prevent relaxing of the spring arms by excessive rotation beyond the over-center positon. For this purpose off-set portion 20 of the bottom wall 18 is provided with an integral upright stop tab 54 and the rotatable locking member 28 has a laterally projecting finger 56 adapted for engagement with the said tab in the selected stop position of rotation. Thus, in a stone clamping position the spring arms are flexed to maintain the bezels under spring action and prevent loose mountings of stones. Furthermore, each of the arms maintains its bezel under spring action in any adjusted position in the slot whereby stones of different sizes and shapes may be clamped securely on the body member.
The slots 40 are directed at a specific angle and the bezels 38 are also specifically angularly directed relative to the adjacent arm portion 48 whereby the bezels will slide freely in the slots as the locking member approaches its over-center stopped position and will be biased substantially radially into the stone.
To mount a stone on the device the locking member 28 is rotated counter-clockwise to its FIGURE 4 or bezel open position. This is a rest position of the locking member since the curved portion of the spring arms abuts the inner surface wall 12 and the ends of these arms cannot move closer together to rotate the locking member in a counterclockwise direction. The stone is positioned on the top wall 14 of base 10 and locking member 28 then rotated. clockwise to its over-center stop position. In the initial rotation of the locking member toward its stop position the bezels are drawn radially inward into engagement with the stone. Upon further rotation of the looking member the spring arms are flexed to apply an inward resilient clamping or gripping engagement with the stone. Upon reaching its stop position the member 28 is locked in position by over-center action of the springs and will remain in such locked position until it is forcefully rotated in the opposite direction.
It is to be understood that the form of my invention herein shown and described is to be taken as a preferred example of the same and that various changes in the shape, size and arrangement of parts may be resorted to without departing from the spirit of my invention or the scope of the subjoined claims. For example, the slots 40 may assume any desired length Within the limit of flexibility of springs 36.
Having thus described my invention, I claim:
1. A mounting base for gem stones comprising a base member having a supporting surface for a stone, a locking member-secured rotatably to the base on the side opposite that of the stone supporting surface, and having a center of rotation with respect to said base member and flexible resilient spring clamp arms each respectively secured at one end to the locking member and having at the other end clamp means projecting through one of a plurality of radially elongated slots in the stone supporting surface for engagement with a stone, the slots being disposed radially outward from an axis of rotation passing through said center of rotation and said base and the arms being curved about said axis of rotation and secured to the locking member at points radially outward from said center and spaced therearound, each said arm defining a line subtending the curve of said each arm between the respective point and slot associated therewith, said base, locking member and arms being constructed and arranged so that said locking member is rotatable with respect to said base member sufficiently to move said arms so that their respective subtendiug lines are movable each from a given side of said axis to the other side and so that their respective clamp means are movable simultaneously radially inward of said center, the spring clamp arms being flexed upon rotation of the locking member relative to the base member in the locking direction to move the clamp means into overlying engagement with a stone on the stone supporting surface.
2. The mounting base of claim 1 including interengageable stop means on the base and locking member for limting rotation of the locking member in said locking direction.
3. The mounting base of claim 1 wherein the clamp means comprise angular projections which serve to secure the locking member to the base member.
References Cited in the file of this patent UNITED STATES PATENTS 385,522 Pierce July 3, 1888 FOREIGN PATENTS 498,154 France Oct. 8, 1919 534,458 Canada Dec. 18, 1956

Claims (1)

1. A MOUNTING BASE FOR GEM STONES COMPRISING A BASE MEMBER HAVING A SUPPORTING SURFACE FOR A STONE, A LOCKING MEMBER SECURED ROTATABLY TO THE BASE ON THE SIDE OPPOSITE THAT OF THE STONE SUPPORTING SURFACE, AND HAVING A CENTER OF ROTATION WITH RESPECT TO SAID BASE MEMBER AND FLEXIBLE RESILIENT SPRING CLAMP ARMS EACH RESPECTIVELY SECURED AT ONE END TO THE LOCKING MEMBER AND HAVING AT THE OTHER END CLAMP MEANS PROJECTING THROUGH ONE OF A PLURALITY OF RADIALLY ELONGATED SLOTS IN THE STONE SUPPORTING SURFACE FOR ENGAGEMENT WITH A STONE, THE SLOTS BEING DISPOSED RADIALLY OUTWARD FROM AN AXIS OF ROTATION PASSING THROUGH SAID CENTER OF ROTATION AND SAID BASE AND THE ARMS BEING CURVED ABOUT SAID AXIS OF ROTATION AND SECURED TO THE LOCKING MEMBER AT POINTS RADIALLY OUTWARD FROM SAID CENTER AND SPACED THEREAROUND, EACH SAID ARM DEFINING A LINE SUBTENDING THE CURVE OF SAID EACH ARM BETWEEN THE RESPECTIVE POINT AND SLOT ASSOCIATED THEREWITH, SAID BASE, LOCKING MEMBER AND ARMS BEING CONSTRUCTED AND ARRANGED SO THAT SAID LOCKING MEMBER IS ROTATABLE WITH RESPECT TO SAID BASE MEMBER SUFFICIENTLY TO MOVE SAID ARMS SO THAT THEIR RESPECTIVE SUBTENDING LINES ARE MOVABLE EACH FROM A GIVEN SIDE OF SAID AXIS TO THE OTHER SIDE AND SO THAT THEIR RESPECTIVE CLAMP MEANS ARE MOVABLE SIMULTANEOUSLY RADIALLY INWARD OF SAID CENTER, THE SPRING CLAMP ARMS BEING FLEXED UPON ROTATION OF THE LOCKING MEMBER RELATIVE TO THE BASE MEMBER IN THE LOCKING DIRECTION TO MOVE THE CLAMP MEANS INTO OVERLYING ENGAGEMENT WITH A STONE ON THE STONE SUPPORTING SURFACE.
US140478A 1961-09-25 1961-09-25 Base with radially movable clamp for detachably mounting stones Expired - Lifetime US3129569A (en)

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Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3862550A (en) * 1972-10-06 1975-01-28 Don F Sengenberger Mounting having movably mounted flexible hook means
US4220018A (en) * 1976-05-11 1980-09-02 Chuard Edmond H Display device for ornamental objects
US4752005A (en) * 1982-08-12 1988-06-21 Siemens Aktiengesellschaft Storage tray for semifinished and finished products, particularly for electric pin coil forms
US5054733A (en) * 1990-02-14 1991-10-08 Shields Michael P Container support device
EP0800954A3 (en) * 1996-04-11 1998-09-16 Fischerwerke Arthur Fischer GmbH & Co. KG Holder for beverage containers
US6491265B2 (en) * 1996-01-05 2002-12-10 David S. Tracy Self locking bi-directional lock/release fixture
US6902142B1 (en) * 2004-05-05 2005-06-07 William Cheng Cup bottom extension apparatus
EP1705058A1 (en) * 2005-03-20 2006-09-27 Faurecia Innenraum Systeme GmbH Device for holding and removing of objects for daily use
US20090090308A1 (en) * 2007-03-29 2009-04-09 Courtney Bridges Nicholson Accessory for animal collars

Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US385522A (en) * 1888-07-03 Lamp-holder
FR498154A (en) * 1916-12-07 1919-12-31 Gaston Francois Joseph Desforg Self-tightening watch band holder
CA534458A (en) * 1956-12-18 J. Lucey John Diamond setting adapter

Patent Citations (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US385522A (en) * 1888-07-03 Lamp-holder
CA534458A (en) * 1956-12-18 J. Lucey John Diamond setting adapter
FR498154A (en) * 1916-12-07 1919-12-31 Gaston Francois Joseph Desforg Self-tightening watch band holder

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3862550A (en) * 1972-10-06 1975-01-28 Don F Sengenberger Mounting having movably mounted flexible hook means
US4220018A (en) * 1976-05-11 1980-09-02 Chuard Edmond H Display device for ornamental objects
US4752005A (en) * 1982-08-12 1988-06-21 Siemens Aktiengesellschaft Storage tray for semifinished and finished products, particularly for electric pin coil forms
US5054733A (en) * 1990-02-14 1991-10-08 Shields Michael P Container support device
US6491265B2 (en) * 1996-01-05 2002-12-10 David S. Tracy Self locking bi-directional lock/release fixture
EP0800954A3 (en) * 1996-04-11 1998-09-16 Fischerwerke Arthur Fischer GmbH & Co. KG Holder for beverage containers
US6902142B1 (en) * 2004-05-05 2005-06-07 William Cheng Cup bottom extension apparatus
EP1705058A1 (en) * 2005-03-20 2006-09-27 Faurecia Innenraum Systeme GmbH Device for holding and removing of objects for daily use
US20090090308A1 (en) * 2007-03-29 2009-04-09 Courtney Bridges Nicholson Accessory for animal collars

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