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Publication numberUS354976 A
Publication typeGrant
Publication dateDec 28, 1886
Publication numberUS 354976 A, US 354976A, US-A-354976, US354976 A, US354976A
InventorsGeoege L. Field
Export CitationBiBTeX, EndNote, RefMan
External Links: USPTO, USPTO Assignment, Espacenet
Dental flexible support
US 354976 A
Abstract  available in
Previous page
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Claims  available in
Description  (OCR text may contain errors)

(No Modei.) I


DENTAL FLEXIBLE SUPPORT. No. 354,976. Patented Dec. 28, 1886,

lhsrrnn STATES ATENT Fries.



ELJI EICA'IIEION' forming part of Letters Patent No. 354,976, dated December 28, 1886.

Application filed April 29, 1886. SerialNo. 200,561. (No model.)

on dental chairs, though it may be applied to a variety of other uses.

Figure l is an elevation of the complete device attached to a chair. Figs. 2 and 3 are elevations of one of the sections of the support.

G represents a chair, to any suitable part of which is attached a sleeve, 71, carrying a setscrew, h. I usually attach the sleeve to the back upright of the chair on the side opposite that where the operator is accustomed to stand while at work; but its point of attachment may be varied at will.

F represents a rod, which may be either straight or bent in any desired form, as shown in thev drawings, one end of which slides in the sleeveh, and is secured in any desired po-' sition therein by the set-screw h.

E represents the lower section of the flexible support, consisting of a sleeve adapted to slide over the upper end of rod F and the setscrew G to secure said sleeve in position, and carrying at its upperend two jaws, d, which are permitted to spring slightly by means of a slot, 3, and can be forced toward-each other by means of a screw, e, which passes loosely through one jaw and is tapped into the other.

D D represent sections all alike, which to: gether form my flexible support. Each section consists of a shank, D, a ball, (1, at one end of the shank, and a pair of jaws, d, at the other end of the shank provided with asl'ot, s, and screw '6, as hereinbefore described.

Near the end of thejaw a hole,f, is drilled, through said jaws, as shown in Figs. 2 and3, and I prefer to have said holes straight and not countersunk on the inner side of the jaw, because this gives more play to the next section, though said holes may be countersunk. The jaws d of the section E are also provided .with similar holes, f.

A represents a lens set in a metal frame, B, which is secured by a screw, 0, orin any convenient manner to a shank similar to B, having on its end a ball similar to d.

The support is put together by loosening screw 6 of the section E until the ball d of one of the sections D can be forced between said jaws d until it rests in the hole f, when the jaws d are compressed upon said ball by tightening the screw 6,- and it is evident that the amount of friction between the jaws herewith and the ball cl can be regulated by the screw 6 to make the support pliable or stiff. One or more sections D may be added in the same manner untilthe support is the desired length, and the lens A put onto the end of the support in the same way.

- It is obvious that, instead of a lens, any other article may be carried by the support; and I have shown a lens attached to the support, because myinvention is designed chiefly to enable a dentist to use the lens in working upon teeth and yet have both hands free.

\Vith this support the lens may be adjusted readily and quickly in front of the patients mouth, no matter in what position that may be.

\Vhat I claim as my invention, and desire to secure by Letters Patent, is

l. A section for a flexible support, consisting of the shank D, provided at one end with the sphere d and at the other end with the two jaws d d, for receiving between them a ball, and acompression set-screw, e, for clamping thejaws upon the ball between them, substantiall y as described:

, 2. The combination, with the sleeve E, adapted to be connected with a dental chair and having two compressible jaws, d d, and compression-screw e, of the flexible support,

comprising a series of connected shanks, D,

eEo. L. FIELD.



Referenced by
Citing PatentFiling datePublication dateApplicantTitle
US2510436 *Nov 19, 1946Jun 6, 1950Earnest Trammell WilliamAttachment for fastening tables to automobile instrument panels
US2861501 *Jul 9, 1954Nov 25, 1958George P StrelakosPortable light reflector with magnifying glass
US3023063 *Jul 5, 1960Feb 27, 1962Hansen Paul EUnderhood tray for auto mechanics
US4898490 *Feb 19, 1988Feb 6, 1990Syron Engineering And Manufacturing CorporationStructure formed from ball jointed links
US4930742 *Mar 25, 1988Jun 5, 1990Donnelly CorporationRearview mirror and accessory mount for vehicles
US5012852 *Mar 6, 1989May 7, 1991Blackhurst Michael LBarrier assembly
US5383738 *Jan 3, 1994Jan 24, 1995Syron Engineering & Manufacturing Corp.Ball jointed links
US5398176 *Apr 19, 1993Mar 14, 1995Ahuja; Sushil K.Multifunctional lamp and support
US5575646 *Jun 2, 1993Nov 19, 1996Gianni M. GiannellaSupport device for a dentist's drill
US5847883 *Aug 8, 1997Dec 8, 1998Rispoli, Sr.; Jerry R.Adjustable magnifying apparatus
US5921694 *Nov 14, 1994Jul 13, 1999Syron Engineering And Manufacturing CorporationBall jointed links
US6062689 *Mar 29, 1999May 16, 2000Harper; DeannaSun screen and method of use
US6088173 *Sep 22, 1999Jul 11, 2000Mendelsohn; Fred M.Adjustable magnifier structure mountable on various lamp stands
US6233102Mar 21, 2000May 15, 2001Veigh E. Hogan, Jr.Point-of-purchase display
US6551242 *Dec 2, 1999Apr 22, 2003Genzyme CorporationRetractor-mounted coronary stabilizer
US6688564Oct 18, 2002Feb 10, 2004Karl Storz Gmbh & Co. KgFlexible tensioning device, especially for medical purposes
US7341356 *Sep 2, 2005Mar 11, 2008Zlatko ZadroDual magnification vanity mirror adjustable in height and orientation
US7400459May 2, 2005Jul 15, 2008Welch Gracie LOperating room magnifier
US8267147 *Sep 18, 2012Lockwood Robin RDental shield apparatus
US8347889 *Jan 8, 2013Timothy Joseph FarnumAirway positioning device
US8469032Feb 11, 2010Jun 25, 2013Timothy J. FarnumAirway positioning device
US20040211868 *Apr 24, 2003Oct 28, 2004Holmes Joseph T.Webcam mount for flexible positioning
US20050243441 *May 2, 2005Nov 3, 2005Welch Gracie LOperating room magnifier
US20110036354 *Feb 17, 2011Timothy Joseph FarnumAirway positioning device
US20110036355 *Feb 17, 2011Farnum Timothy JAirway Positioning Device
US20110318702 *Jun 23, 2010Dec 29, 2011Lockwood Robin RDental Shield Apparatus
DE10019321A1 *Apr 19, 2000Oct 31, 2001Storz Karl Gmbh & Co KgFlexible Spannvorrichtung ,insbesondere für medizinische Zwecke
DE10019321C2 *Apr 19, 2000Mar 14, 2002Storz Karl Gmbh & Co KgFlexible Spannvorrichtung ,insbesondere für medizinische Zwecke
EP2700873A1 *Aug 22, 2012Feb 26, 2014Crystal Eyes Enterprise Co., Ltd.Articulated lamp
Cooperative ClassificationF21V21/29, F16C11/106
European ClassificationF16C11/10B2