US423616A

US423616A - And george f

Info

Publication number: US423616A
Authority: US
Publication date: 1890-03-18
Anticipated expiration: 1907-03-18

Description

(No Model) I 0. W. & F. MANKEB. GALVANIG APPARATUS FOR. DENTAL SURGERY.

No. 423,616; Patented Mar. 18, .1890.

WITNESSES: l/VVE/VTOR:

4 L6 Y U ATTORNEYS.

' N PETERS. Photo-Lilhogmphnn Walhlnglcm B, C,

, MANKER, of Nebraska City,

UNITED STATES PATENT OFFICE.

' CHARLES YVM. MANKER, OF NEBRASKA CITY, NEBRASKA, AND GEORGE 1 5. MANKER, OF BEDFORD, IOWA, ASSIGNORS OF ONE-THIRD TO HENRY E. MANKER, OF ELLIOTT, IOWA.

GALVANIC APPARATUS FOR DENTAL SURGERY.

SPECIFICATION forming part of Letters Patent No. 423,616, dated March 18, 1890.

Application filed Augnst 23, 1889. Serial No. 321,752. (No model.)

To all whom it may concern.-

Be it known that We,CHARLES WILLIAM in the county of Otoe and State of Nebraska, and GEORGE F. MANKER, of Bedford, inthe county of Taylor and State of Iowa, have invented a new and Improved Apparatus for Use in Dental Surgery, of which the following is at'ull, clear, and exact description, reference being had to the accompanying drawing, which is a plan View,

partly in section, of our improved galvanic apparatus.

The object of our invention is to construct a simple and eifective galvanic apparatus for use in connection with the forcepsin the extraction of teeth or other dental operations, the said apparatus being designed to reduce the pain of the operation and treatment of oral diseases.

Our invention consists in the combination, with a battery and induction-coil, of an interrupter operated by two electro-magnets and provided with two sets of contact-points.

It also consists in an adjustable interrupterarmature arranged to vary the speed of the breaks in'the primary circuit.

The invention also further consists in the combination, with the electrodes running from the secondary wire of the induction-coil, of rings adapted to be worn upon the fingers of the operator, either one or two fingers, as desired, for forming an electric contact with the forceps, all as will be hereinafter more fully described.

Upon a suitable base A is mounted'an induction-coil B,,provided with a soft-iron core a in the usual way. To the said core is fitted a sliding shield O, of brass or other non-mag netic material, by means of which the strength of the secondary current may be varied. The primary wire of the induction-coil is branched and connected with two magnets D D, and the said magnets are connected with the posts E E, carrying contact-screws b. The magnets D D' are connected up in a diagonallyopposite arrangement with the posts E E.

Between the contact-screws b is supported an armature-spring c by the post d, the said post being slotted to receive the spring and provided with a clamping-screw e for holding the spring a in any desired position. v To the free end of the armature-spring c is secured an armature f, which is within the field of the polar extremities g g of the magnets D D. The post 61 is connected by a wire it with a binding-post z, and the said binding-post is connected with one pole of the battery F, the remaining pole of the battery being connected with the binding-post Q1, and the said binding-post z" is connected with the remaining terminal of the primary coil.

The terminals of the secondary-coil are connected with the binding-posts jj', and to the base .A are secured the binding-posts k k, which are connected electrically. The conductors Z Z are connected with the bindingposts 10 j and with the electrodes m m, which are to be held by the hands of the patient, The conductors a n are connected with the binding-posts j 70, also with rings 0 0',- or other means, which are to be worn upon the fingers I breaking the secondary circuit. The secondary current applied in the manner indicated relieves thepain of extraction.

The strength of current may be varied by moving the shield O in or out over the core a,

and the rapidity of the vibrations of the armatureand itsspring may be varied by changing the adjustment of the armature-spring in the postcZ.

Having thus described our, invention, we claim as new and desire to secure by Letters Patent- 1. The combination of the magnets D D, the adjustable armature-spring c and armature f, carriedthereby, the contact-screws 1),.

and the electrical connections, substantially as specified;

2. The combination of the induction-coil B, the magnets D D, connected in branch circuits, the armature-spring a, carrying the armature fi -the contact-screws b, and the electrical connections,- substantially as specified.

3. The combination, with the induction-coil B, of the conductors n Z, connected with the terminals of the secondary Wire, and the cond uctors n Z, connected electrically, the said conductors Z 1' being provided with electrodes m m and the conductors-n n being provided with the electrodes 0 0- substantially as specified, which may be worn onseparate fingers or on one finger of the operator, as desired.

, GEORGE FL MANK'ER.

' WVitnesses:

FRANK A. REMINGTON, MAHLON *W. FULLER.