US626476A - Tooth-regulating device - Google Patents

Description

No. 626,476. Patented June 6, I899.

E; a. mu; TOOTH BEGUM TING DEVICE.

(Application filed Oct. 24, 1898.)

mo model.)

' gins to adapt itself to the desired adjustment,

rr'rntrr onion.

EDVYARD H, ANGLE, Old-8T. LOUIS MISSOURI TOQTH REGULATENG llEViCE.

SEECIE'ICATION forming part of Letters Patent No. 626,476, dated June 6. 15399.

' Application filed October 24. I898.

To all whom it may concern.-

Be it known that I, EDWARD H. Anonn, a citizen of the United States, residing at St. Louis, in the State of Missouri, have invented certain netv snd useful Improvements in Tooth-Regulating Devices; and I do hereby declarethe following to he a. full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertnins to make and use tiresome.

Myinvention relates to teeth-regulating devices for use in dentistry; and it consists of the novel devices nnd combinations of devices hereinafter described. and defined in the claims.

In what is knovgn as the Anglesystem for the regulation of teeth, several of the re ulntors include telescoping parts, which are adjustable in respect to each other, bymenns of nuts working on the screw-threaded portion 01' port-ions of the tension or delivery members and reacting against the relatively lined or anchored members as bases of resistance. An illustration may be seen in. my prior patent, No. 309,177, of date March 5, 1889.

In the class of devices above noted I have found in prectice that the adjusting-nuts will remain where sett'air-ly well as long as considerable tension is kept thereonby the pres sure from the tooth which is to be moved. When, however, the tooth to be regulated betherehy relieving the device from tension, more or less, I have found that the adjustingnuts are liable-to he accidentally moved under the engagement therewith of the tongue Theohject of my invention is to overcome this defect, so as to secure a regulating device of simple and .eifici-nt construction wherein the telescoping parts will be securely held in whatever position relative to each other they may he set.

My invention is illustrated in the swarm parlying drswings, wherein like notations refor to like parts throughout the several views.

Figure 1 is a. plnn view showing, my im provernent no applied to an artificial arch. Fig. 2 is e. similar view showing my improve ment reapplied to n fish-tail or jock-screw regnletor. Fin 3 is n detail, chiefly in plan,

Serial in. secret. on model.)

but pert-1y in section, with some, portions hroken away, illustrating, on on enlarged scale, a pair (ii-telescoping parts eq nipped with the preferred form of my im movement. Fig. 4. is a. detail in longitudinal section showing; the relation of the nut and rod, on illustrated in Figs. 1, 2, and 3. Fig. 5 ion view similar to Fig. 3, illustrating a. modified construction.

In the form of regulator illustrated in Fig. 1 the screw-threaded ends of the arch-wire 1 or. delivery member of the device extend through anchor-tubes or-beuring-blocks 2, which are shown as provided with elnmpingbends 3 for securing the some to the anchor-- teeth. In the formof regulator-illustrated in. Fig. 2 the fish-mil delivery-rod 4 is screwthreaded and extends into a. corresponding anchor "cube or benringblocir 2, which. is short-1n as provided with a. humid, adapted to he cemented to on anchor-tooth. In both forms the members 1 and 4 are the delivery or tension members and the mernhers 2 are the relatively fixed or anchored members of the regulators. in both forms the delivery or tension members are provided with anodjusting} nut or nuts 5,,according to the form of the regulator, which serve to street the desired adjustment of the two telescoping members relative to each other. Instead of an ordinary nut, however, as in my prior patent, the nut 5 is now provided with a, threndless extension a or c, which is adapted to serve as a friction-sleeve for telescoping frictional engagement with the anchor block or tube 2.

In the preferred form of my improvement, as? illustrated in Figs. 1 to 4, inclusive, the friction-sleeve a of the nut is of'less exterior diameter than the not proper and is of greater diameter than the'scrcw-threadcd portion of the delivery. Wire or rod on which the nut Works. The sand friction-sleeve a is also split axially or lengthwise thereof in the preferred form, as shown at a' in Fig. 73. The anchor tube or elock 2 when the irictionslceve is of less diameter than the nut proper, as shown, is counterbored, as shown in Fig. 3, to provide a seat or recess Z) of the proper size to receive the friction sleeve or surface a, pro- ,iecting from the not 5. This counterliore b is of slightly less diameter than the outside diameter or the frictionourface a, so as to radially press or spring the split. sleeve a.

- no means the full mechanical equivalent of 1;

' results than the ordinary nut, but is far less w trance of the frictionasleeve in the counterbored seat of the anchor-tube 2. The oounand thereby hold the nut under considerable friction when the sleeve is in its innermost or working position in respect to the anchor tube or block 2,'as shown in ,F igs 1 and A. The end of the friction-slecvealsslight] y rounds}; or reduced, as shown at'a and the mouth J the anchor-tube 2 is slightly beveled or flared outward, as shown at b, to insures ready enthe regulator will be securely hjcld in.what-' ever position th'ey'may be set relative to each other whenin use. Accidental displacement of the adjusting-nut under the action of the tongue or lipsofthe wearer cannot take place. The reg'ulatoi'sare therefore very greatly increased in efiiciency. i

- In the. modification illustrated in Fig. '5 I have shown a friction-sleeve c which is not split. This form of friction-sleeve is an improvement over the ordinary nut, but is by the-split sleeve eq-shown'iir'the "main View; No compression or spring action between the friction-surfaces is available in this modification. Thesleeve c'must simply be made of a size to afford a close :fit with the anchortube 2. 4 When thus properly inade,this devicewill work fairly Welland give much better reliable than the split sleeve a illustrated in the main views. I

The friction-sleeve of the nut has been shown of a size to engage a counterbored seat in the a-nchor'tubc or block of the regulator, and this is by far the most desirable construc. tion for comfort to the, wearer, asit' gets the engaging parts out of the way of the tongue.

It must be obvious, however, that the reverse engagement therewith Hence the tele- I construction would work-to wit. a construc seems tion wherein the fri'ctionsleeve had a bore ofthe, proper size to telescope with the outer surface of the anchor-tube 2 under frictional Likewise it is apparcut that the anchor-tube might be split for a portion of its length instead of the frictionsleeve being split, as shown, to secure the radial spring action between the engaging friction surfaces.

Theirnportant point of the improvement is thatmeans is thereby afiorded for putting the adjusting-nut 5 under a friction or tenion which is entirely independent of thetooth-shifting tension. This is suflicient -to prevent accidental rotary motion thereof under the tongue or lip action of the wearer,

and hence the nut and the telescoping parts {bf the regulator will remain in whatever, po-

sition they may be set relative to each other as desired for this class of work.

What. I claim, and desire to 'seeure by Letters Patent of the Unitedstateais as follows: "1. In a tooth-regulator having extensible parts, an adjusting-nut working on one and reacting against the other of said parts,which end thrusts or strains and isprovide'd with a friction sleeve or section that puts the said nut under a'friction or tension against rota .tion, independently 'of the endstrains on the said nut, substantially as described,

2'. In a tooth-regulator having telescoping p ar ts,-an adjusting-nut working en one and reactingagainsttheoflther of said end thrusts or strains, and is provided with a f riction-sleeve that puts the said nut under friction or tension against rotation with respect to the part frictionally engaged, independently of the thrust or end strains on the said n'ut, one of the said frictlonally-engaging parts being split longitudinally and the two being of sufficiently different diameters to afford a radial springing action, substantially as described.

In testimony whereof I aifix my signature in presence of two witnesses.

EDWARD n. ANGTTE;

Witnesses:

" ANNA Horxms,

W. E. Barton.

' nut has an abrupt shoulder that resists the V partswhieh inn. has an abrupt slibulder that resists the

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