US1205088A

US1205088A - Device for measuring materials for tooth-fillings.

Info

Publication number: US1205088A
Application number: US10457316A
Authority: US
Inventors: John F Fietsch
Original assignee: Individual
Current assignee: Individual
Priority date: 1916-06-19
Filing date: 1916-06-19
Publication date: 1916-11-14
Anticipated expiration: 1933-11-14

Description

J. F. FIETSGH.

DEVICE FOR MEASURING MATERIALS FOR TOOTH FILLINGS.

APPLICATION FILED JUNE 23.1913- RENEWED JUNE 19. 1916- 1,295,088 Patented Nov. 14, 1916.

/6 1 1 h /wl w lid lid

ed to easily and snares mean a Specification of Letters Patent.

Patented Nov. id, 19116.

1 fippllcation filed June23, 1913, Serial No. 775,284. Renewed June 19, 1916. Serial No. 10%,573.

I To all whom it concern Be it known that I, J OHN F. Fm'rsorr, a citizen of the United States, residing at Forest? Park, in the county of Cook and have invented a certain new and useful Improvement in Devices for Measuring Materials for Tooth-Fillings,

of which the following is a specification.

This invention relates to devices for measuring materials for tooth fillings, and has for its object to provide a new and improved device of this description, particularly adaptquickly secure the proper proportions of the powdered metal and m'ercury in forming amalgam fillings. In order to provide a proper amalgam filling which shall be of the proper consistency and have the properlasting qualities, it is necessary to mix the powdered metal and mercury in j certain definiteproportions.

narily done by weighing the materials on an apothecar scale. usually must e done after hours, and hence is liable to be omitted, the dentists guessing at the amounts at the time the filling is made, thereby failing to get the proper results.

The object of my invention is to provide a device by means of which the proper proportions of powdered metal and mercury may be easily and quickly made at the time the amalgam is needed and by means of which the proper amounts may also be easily provided thereby preventing. waste of ma terial. V a

My present invention also adapts'itself to the peculiar characteristics of the mercury.

The inventionis illustrated in the accompanying drawings wherein-.-

of Fig. 1; Fig. 4lis a view. of the spring and agitating plate for the receptacle ring in position.

Figure l'is a plan view of one form of device embodying the invention Fig. 2 is a sectional view taken on line 22 of Fig. 1; Fig. 3 is a sectional view taken on line 3-3 cover,

containing the powdered material. Fig. 5 is a plan view of the agitating plate. Fig. 6 is a view showing a split ring ada ted to be used to vary the quantity of material disth charged. Fig. -7 is a view showing the split L1ke numerals refer to like parts throughout the several figures.

Referring now to the accompanying drawgs, I have shown the device as consisting of a body portion 1, made of any suitable This is ordi- This takes time and material, but preferably of glass. This body portion is provided with two receiving

openmgs

2 and 3, which form, as it were, two receptacles. The receiving opening 2 is for the mercury and the receiving opening 3 is for the powdered material. The receiving open- 1n g 2.is provided with a covert and the rece1v1ng opemng 3 is provided with a cover 5. Below the receiving

openings

2 and 3 are the'rotatable

parts

6 and 7, which extend through

holes

8 and 9, these holes communicating with :the, receiving

openings

2 and 3.. The

rotatable parts

6 and 7 are provided with one or more openings or pockets 10 which are adapted to receive a portion ofthe material in the receiving

openings

2 and 3 when opposite said receiving openmgs. Below the

rotatable parts

6 and 7 are the discharge openings 11 through which the materials from the

receptacles

2 and 3 means is provided for preventing this. As

hereln shown, I provid e an agitating device 12, by means of which the powdered material is agitated. This agitating devic'may' be of any desired construction. Asherein with a series of openings and'a series of projecting parts 13, and forming as it were, a also or movabli'e perforated bottom. This dliske is located at the bottom of the receptac e A 14 is connected with the cover 5 and its lowerend passes through an opening 15 in the agitating disk. The springis of such lengththat its end will pro e ct into onecof the pockets 10 of so that when the rotatable part 7 is rotated, the spring will be moved to one side as the pocket moves away from beneath the receptacle 3 and will spring back as the end of the spring pa$es from one pocket to the other, us insuring an agitation of the powdered material at the very bottom of the receptacle and at the point where it passes into the pocket 10, thus ing of each pocket. The nction of the the rotatablepart 7 shown, it consists of a disk orplateprovided insuring the proper fillbottom. It will be seen that in-the -operation of the device this spring, as it were,

snaps back suddenly and carries with it this false or movable bottom, which agitates the powdered material and insures its passing into the pocket in the rotatable part. In order to permit the agitating device to be placed at the bottom of the receptacle 3, I provide the cover 5 with an opening 16 so that the powdered material into the receptacle after thecover has been placed in position and while the spring is in the opening 15 of the agitating device. This hole is covered up by a clamp 17 which fits in grooves 18 of the

covers

4 and 5 and which has spring ends fitting into notches 18 in the body portion 1, said clamp holding the covers in position. Some suitable means is provided for holding the

rotatable parts

6 and 7 against longitudinal movement during their normal operation. As

herein shown, the ends of these parts project beyond the body portion and each end is provided with a groove 19. A spring 20 is placed between the two parts, the ends of the spring entering the grooves 19. This permits the rotatable parts to be rotated but holds them against longitudinal movement. I prefer to provide some means for varying the quantity of material entering the pockets 10 so as to vary the size of the charge. As illustrated in Figs. 6 and 7, this result is secured by means of a split ring 21 adapted to tightly fit into these openings. The split ring is preferably made of spring material so as to spring outwardly and thus tightly engage the walls of the pocket 10. These split rings may be of various thicknesses so that difierent ones may be placed in the pockets to secure difierent charges-of mate rial, the largest charge being obtained when the split ring is entirely omitted. The split rings are preferably used in connection with the powdered material.

When the device is,used, the mercury is placed in the receptacle 2 and the powdered alloy in the receptacle 3. Before placing the powdered alloy in the receptacle 3, the cap 5 is placed in position and the spring passed through the opening 15 in the agitating device. The powdered material is inserted through the opening 16 and. the clamping de vice is then placed in position. When it is desired to make a filling, the rotatable part 6 is rotated so as to discharge a proper amount of mercury. The rotatable part 7 is then rotated so as to discharge a proper amount of powdered material. These materials may be discharged one after the other so that they may be discharged in the same receptacle, or one on top' of the other in order to facilitate mixing. When the r0- tatable part 7 is rotated, the agitating device is moved to agitate the powdered material so as to insure the proper movement thereof in the pocket 10. It will be seen that by means of this device the proper may be inserted quantities can be easily and quickly discharged from the device so that a filling of the proper consistency can be easily and quickly made, thus avoiding the necessity of weighing out the'mercury and the powdered material and at the same time securing a uniform mixture at all times when desired.

I claim:

1. A device for measuring powdered material for tooth fillings, comprising a body portion provided with a receptacle for containing said powdered material, said receptacle provided with an inclined bottom, said bottom provided near its center with an opening, a rotatable part mounted in an opening in said body portion and provided with a pocket adapted to be moved opposite the opening in the bottom of said receptacle, a laterally movable perforated plate located in said receptacle, said plate provided with downwardly projecting parts which engage the inclined portion of said bottom, and means for moving said plate back andforth across said bottom to agitate said material so as to insure the proper filling of the pocket in said rotatable part.

2. A device for measuring materials for tooth fillings comprising a unitary body portion provided with two separate receptacles, one for the mercury and the other for the powdered material, a part between them integral with said body portion for preventing material from passing from one receptacle to the other, a rotatable part associated with each receptacle, said rotatable part having pocketscommunicating with said receptacle when in a predetermined position, said body portion having a discharge opening below each of said rotatable parts through which the materials in said pockets are discharged when the pockets are brought opposite thereto, and a movable perforated iece associated with the receptacle containing the powdered material and means for moving said perforated piece laterally when the rotating part is rotated to agitate said 'material so as to insure its passing into the pocket in the rotatable part. 7

3. A device for measuring powdered material for tooth fillings, comprising a body portion provided with a receptacle into which the powdered material is received, the bottom of said receptacle'provided with an opening through which the material is discharged, the portion of the bottom between said opening and the side walls of the receptacle being inclined, a perforated piece resting on this inclined portion seats to be located over saidopening, the width of said perforated piece being smaller than the distance across said receptacle, a controlling device for controlling the discharge of material through said opening, and means actuated by said controlling device for moving said perforated piece laterally when the controlling device is operated so as to agitate said powdered material.

, from said agitating 4. A device for measuring materials for tooth fillings comprising a body portion provided with a receptacle for containing the powdered material, a rotatable part associated with said receptacle, said rotatable part provided with a pocket adapted to communicate with said receptacle when in a predetermined position, a laterally movable piece near the bottom of said receptacle, said laterally movable piece provided with a projecting part which holds it away from the bottom of said receptacle, and means for moving said laterally movable part back and forth across the bottom of said receptacle.

5. A device for measuring materials for tooth fillings comprising a body portion provided with. a receptacle for containing the powdered material, a rotatable part associated with said receptacle, and provided with a pocket adapted to communicate with said receptacle when in a predetermined position, an agitating device near the bottom of said receptacle, a spring piece separate device but movably connected therewith said spring piece connectedwith a stationary part, said spring piece adapted to be engaged by said rotatable part to move the agitating device.

6. A device for measuring materials for tooth fillings comprising a body portion provided with two receptacles, a rotatable part associated with each receptacle and containing a pocket adapted to be brought in communication with said receptacle when the rotatable part is in a predetermined position, and means separate from said body portion for preventing longitudinal movement of d said rotatable parts said means consisting of a piece intermediate the two rotatable parts and engaging both of them.

7. A device for measuring materials for tooth fillings comprising a unitary body portion provided with two receptacles, a rotatable part associated with each receptacle and containing a pocket adapted to be brought in communication with said receptacle when the rotatable part is in a predetermined position, covers for said receptacles and a single clamp for holding said covers in position.

8. A device for measuring materials for tooth fillings comprising a body portion provided with a receptacle, a rotatable part as sociated with said receptacle and containing a pocket adapted to be brought in communication With said receptacle when the rotatable part is in a predetermined position, a cover for said receptacle and a clamp for holding said cover in position, an agitating device in said receptacle, a spring piece connected therewith and connected with the cover of said receptacle, said cover provided with an opening through which the material is inserted into the receptacle without removing said cover and spring.

9. A device for measuring material for tooth fillings comprising a body portion provided with a receptacle, a rotatable part associated with said receptacle and containing a pocket adapted to be brought into communication with said receptacle when the rotatable part is in a predetermined position, an agitating device loosely held in said receptacle, a spring piece having one end fastened to a part above said agitating device, the other end of the spring piece projecting through an opening in the agitating device, and engaging said rotatable part, whereby when the. rotatable part is rotated the agitating device is moved back and forth.

10. A device for measuring materials, comprising a bodyportion provided with a receptacle, a rotatable part associated with said receptacle and containing a pocket adapted to be brought into communication with said receptacle when the rotatable part is in a predetermined position, a removable cover for said receptacle, said cover provided with an opening, through which the material is inserted into the receptacle, an agitating evice loosely held in said receptacle, a spring piece connected with said cover and projecting through an opening in said agitating device, the end of said spring piece projecting beyond the agitating device and in position to be engaged by said rotatable part, when rotated.

In testimony whereof I affix my signature in he presence of two witnesses this 17th day of June, 1913.

JOHN F. FIETSCH.

Witnesses:

HERMAN F. JACOB; W. F. Gnossnn.