US363630A

US363630A - Dental plugger

Info

Publication number: US363630A
Authority: US
Publication date: 1887-05-24
Anticipated expiration: 1904-05-24

Description

(No Model.)

A. C. GREENLEE.

DENTAL PLUGGER.

Patented May 24, 18847.

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UNITED STATES PATENT OFFICEo ARTHUR C. GB'EENLEE, OF FERGUS FALLS, MINNESOTA. I

DENTAL PLUGGER.

SPECIFICATION forming part of Letters Patent No. 363,630, dated May 24, 1887.

Application filed December 6, 1886. Serial No. 220,5?9.` (No model.)

.To all whom, it may concern:

Be itknown that I, ARTHUR C. GREENLEE, a citizen of the UnitedStates, residing at Fergus Falls, in the county of Otter Tail and State of Minnesota, have invented a new and useful Attachment for the Dental Engi ne-viz., a Right-Angled Plugger--of which the following is a specification.

My invention relates to an improvement in the attachments of the dental engine which are commonly used for inserting the filling of teeth 5 and the objects of my invention are, first, to provide au attachment for the dental engine which shall fill a tooth by means of blows delivered at right angles to the driving' shaft; second, to provide an attachment for the dental engine which shall operate at any reentrant angle between ninety degrees and sixty degrees inclination to the driving-shaft; third, in such a right-angled dental plugger to provide a means for holding theplugging-shaft at any required inclination to the operating-shaft; fourth, to provide in such a right-angled plugger a combination of mechanism which shall convert the rotary motion of the shaft driven by the dental engine into a reciprocating motion of the shaft which Vcarries the pluggingtool; iifth, in such a right-angled dental plugger to provide a means for regulating the length of the stroke of the reciprocating bar or shaft which carries the plugging-tool; sixth, in such a right-angled dental plugger to provide a means for regulating the force of the blows which are to be given by said plugger; seventh, in such a right-angled dental plugger to provide-a means for keeping the follower atv tached to the plugging-shaft in constant coutact with the cam which operates the same. I attain these objects by means of the mechanism illustrated in -the accompanying drawings, in which- Figure 1 is a vertical section of the entire` machine, and Fig. 2 a view of the workingcam B.

The handle T, to which are riveted or fastened in any substantial manner the hanger N and the cylindrical tube K, oscillating upon journals M, which are supported upon opposite sides of said cylindrical tube in holes in the hanger N, constitutes the frame-work of the machine.

The cylinder K, which contains the plugging-shaft,is held at right angles to the operating-shaft A by means of the brace O, which is attached, by a ball-and-soeket joint, S, at the end next the plugger-cylinder, to the adjusting-nut G, whose use will be hereinafter explained, and at the other end carries the pin P, which slides in the spiral groove Q of the collar R, the lower end of said brace O sliding longitudinally in a slot cutin the hanger N.

In the handle T the operating-shaft A revolves, which is connected to the dental engine, and has the cam B attached to it. Against the periphery of this cani B the arm or follower C, rigidly attached to the plugger-shaft D, is held in contact by the spiral spring E, the action of such combination being that as the cani Bis revolved the follower C is brought to the point U and the spring E is compressed. A further revolution of the cam B releases the follower C from contact therewith, and the pressure on the spring E being removed, the plugging-shaft D, with its tool J and arm or follower C, is projected through the distance U V,When the follower C again comes in contact with the cam B. ThecylinderK is moved to a position at any desired angle between ari ghtangle and one of sixty degrees inclination to the operating-shaft by turning the collar R, which causes the pin P, and with it the brace O, to be raised or lowered. The collar R is constructed to it very closely around the hanger N,so that it will remain in any required position, thus holding the brace O, and with it the cylinder K,in the position desired by the operator until the collar R is again rotated.

The dotted iigure of the plugger-cylinder, as shown by S D in Fig. 1, illustrates the position of the said cylinder when inclined atan angle of sixty degrees to the operating-shaft.

The length of stroke U Vmay be shortened or subdivided by turning theV adj Listing-nut I in such a way as to move the buffer-block H to the left, as shown in Fig. 1, so that-,instead of being stopped at V by the cam B, the plugger-shaft may be stopped by the collar XV striking against the buffer-block H.

To decrease the force of the blow of the plugger, thecompression-bloek F may be moved toward the left, as shown in Fig. 1, by turning the adjusting-nut G, thusdecreasing the IOO pressure upon the spring E and the force of the blow delivered by the pluggcr; or it may be moved to the right by turning the nut G in the opposite direction, thus compressing the spring E, with which the shaft D is propelled upon releasing the follower C from contact with the cam B.

As the cylinder K is moved into position shown by the dotted lines, the follower C will be thrown out of contact with the cani B, and to bring them again in contact the compression block F is pushed down toward the right by turning the adjusting-nut G until the follower C strikes the cam B at V and the required ten! sion upon the'spring E is obtained. At the saine time the buffer-block H is drawn down Y toward the right until the collar \V just comes in contact therewith.

Having thus described my invention, what I claim as new, and desire to secure by Letters Patent, is-

1. In ariglit-angled dental plugger, the combination of the handle T, hanger N, journals M, plugger-cylinder K, slotted at L, operating-shaft A, rotating cam B, follower C, plugvger-shaft D, spring E, tensionblock F, adjusting-block G, ball-andsoeket joint S, and arni O, longitudinally placed in a slot in the `hanger N'and bearing a pin, l?, all substantially as described.

2. In a dental plugger, the combination of the collar It, closely encircling hanger N and arm O, and having a spiral slot,Q,cut therein, the pin I?, attached to the arm O, constructed to travel in slot Q, joint S,and the journals M, supporting cylinder K in the hangerN,whereby the angle of the plugger to the operating-shait may be varied, substantially as described.

3. In a dental plugger, the combination ot' 'a shaft, A, the cam B, follower C, attached to plugger-shaft D, spiral spring E, and cornpression-bloek F, substantially as shown, and for the purpose specified.

4. In a dental plugger, the combination of a cylinder, K, abuffer-bloclr, H, constructed to slide in a slot, L, in the upper portlon of the hanger N, and the adjusting-,nut I, revolving in the cylinder K, substantially as de scribed. 1

5. In a dental plugger, the combination of the cylinder K, a compression-block, F, sliding in a slot, L, in the upper portion of the hanger N, andthe adj Listing-nut G, rotating 1n the cylinder K, substantially as described.

Gf In a dental 'pluggen the combination of a cylinder, K, compressionblock F, adjustingnut G, buffer-block H, and adjustingnut I, substantially as and for the purposes specilied.

ARTHUR C. GREENLEE. Vitnesses: t

AUeUsTUs J. ELKINs, HARRY SvENsGAAnD.