US1388347A

US1388347A - Dentist's cabinet

Info

Publication number: US1388347A
Application number: US424358A
Authority: US
Inventors: Klicka Rudolf
Original assignee: Individual
Current assignee: Individual
Priority date: 1920-11-16
Filing date: 1920-11-16
Publication date: 1921-08-23
Anticipated expiration: 1938-08-23

Description

R. KLICKA. DENTfSTS CABINET.

APPLICATION FILED NOV. I6, 1920.

Patented Aug; 23, 1921.

2 SHEETS-SHEET l- UNITED STATES PATENT OFFICE.

DENTISTS CABINET.

Specification of Letters Patent.

Patented Aug. 23, 1921.

Application fil ed November 16, 1920. Serial No. 424,358.

T all item it may concern:

Be it known that I, RUDoLr KLIoKA, citizen of the United States, and residingin the city of Pittsburgh, in the county of Allegheny and State of Pennsylvania, have invented or discovered the new, useful, and.

. combinesthe function of a cabinet for conveniently containingthe necessary tools and other requisites for oral work with-the function of a dental laboratory and work bench.

With this object in view, I have invented a new and improved combination cabinet provided with suitable compartments or.

drawers for tools and other requisites for oral. work within easy reach and access of the dentist while working on a patients teeth, and which is in addition provided with the power tools, such as drills, grinding wheels, buffers and rotary brushes, required for dental laboratory work.

The cabinet is provided with means for collecting and carrying away the dust and refuse resulting from laboratory work, and filtering the same from the air, so that the same do not float in the atmosphere of theroom nor settle on the furniture. Means are also provided for the thorough separation from such dust of the valuable gold and other metal particles without loss.

Other novel features of construction and arrangement of parts will appear from the following description.

In the accompanying drawings, which are,

however, merely intended to illustrate a practical embodiment of the principles of my invention without limiting the scope of the latter to the construction shown, Figure 1 is a front elevation of a combination cabinet embodying the principles of my invention; Fig. 2 is a vertical section taken along the irregular line IIII in Fig. 1; Fig. 3 is a vertical sectiontaken along the line ITI III in Fig. 2; Fig. 4 is a horizontal section taken along the line IV-IV in Fig. 2; Fig. 5qis a broken perspective taken in section along the line V-V-in Fig. 3, and

on a slightly enlarged scale; and Fig. 6 is.

a detail section along line VIVI in Fig.

l the drawer being shown pulled out to expose the section port. Fig. 7 is a perspective of the air filter.

The following is a detailed description of the drawings:

The cabinet, which, is preferably of wood but which of course may be made of metal, is shown as of the following construction.

1 represents the vertical side walls, 2 the back and 3 the top.

4 is the working shelf horizontally supported by the side and back walls at a convenient-height. Above the shelf 4 are the two spaced apart

shelves

5 and 6. 7 represents vertical partitions spaced. inwardly from the sides 1, thus forming with the sides and back and with the

shelves

5 and 6, compartments which are divided by the short horizontal shelves 8 to receive the small drawers 9 for storing tools and other supplies.

10 is a vertically disposed box or duct whose rear wall is formed by the back 2 and which extends from an opening or port 11 in the rear center of the shelf '4, through the rear center of the shelf 5, to a port 12 in the rear center of the shelf 6.

The rear or inner portion of the space between shelf 6 and the top 3 is inclosed by the removable door or closure 13 which is disposed in the upwardly and outwardly inclined position shown in Fig. 2 bearing against top and bottom horizontal cleats 14, and held in position by pivoted buttons 15 which engage slots in the inner surfaces of the sides Thus an'upwardly expanding filter chamber 16, extending the full width of the cabi net is formed. To oneside of its transverse.

20 represents wooden or other solid ends whlch are connected together and suitably spaced apart by the longitudinal top and

bottom braces

21, 22 represents a covering of cheese cloth or other textile material which is stretched on said frame, inclosing the same except the top which is open. The end pieces 20 are provided at their tops with horizontally disposed flanges 23, whose under surfaces are slightly inclined down-.

24 upon which the flanges 23 ride when the filter is introduced into the compartment 16. The inclination of the fianges23, having'a wedging engagement with the cleats 24, causes the top edge of the filter to be forced up into snug engagement with the under side of the top 3 of the cabinet. The port 17 is positioned to open into the interior of the filter. The textile filter walls are spaced away from the front and rear walls of the compartment 16, as shown in Fig. 2, and the bottom of the filter is somewhat above the shelf 6. Thus air sucked by the fan A through said compartment from the port 12 to the port 17 must pass through the filter, depositing on the walls all dust and other foreign matter, so that the fan may discharge its air into the room without contaminating the atmosphere.

The filter may be removed at suitable intervals for cleaning off the materials deposited from. the air on its walls, the valuable elements, such as small particles of gold being recovered, and dust deposited on the floor and walls of the compartment 16 may be swept out and its valuable elements separated.

25, 25, 252-25, 25 and 25 are partitions extending from the

shelves

4 and 5, and forwardly from the back wall 2 but stop )ing short of the front edge of the shelf 4. hus a central compartment 26 is formed to accommodate an electric motor B. Also four working

compartments

27, 28, 29 and 30 are formed, and two relatively

narrow end compartments

31 and 32, which may be used for storage or display.

In front of each compartment 31 and 32 I depend a lamp support 33 from the shelf 5 carrying an incandescent lamp 34 to illuminate the working shelf 4.

35 represents the motor shafts extending from either end of the'motor B across the fronts of the working compartments, the

partitions being notched, as at 36 in Fig. 5,

to provide clearance for the shafts, so that the rotary tools 37 mounted on the shafts, such as grindin wheels, buffers, brushes, &c. are substantially half within the working compartments.

38 represents a dust receiver or hopper mounted under the shelf 4 against the back wall 2.- The lower end of the duct 10 connects with the top center of the hopper by means of the port 11 through the shelf 4.

In the rear of each working compartment the shelf .4 is orted, as at 39 in Fig. 4, for

the full widt of the compartment, thus-- forming openings through said shelf connecting the working compartments with the interior of the hopper.

40 represents sliding valve members, preferably in the form of drawers, one of which is provided for each working compartment. When said drawers are shoved back into the compartments, said ports are closed! By drawing out a drawer, as shown in Fig. 4, the corresponding port 39 will be opened.

The rear portions of said drawers 40 are provided with double deflecting shields or lids 41, facing front and rear,so that whena drawer is pulled out, exposing the corresponding port 39, the dust and dry particles from the tools will be deflected down into the port 39 while the pumice paste or other liquid will be deposited in the front of the drawer. I

The bottom or throat of the hopper 38 is provided with a removable box 42 into which the gold or other heavy metallic particles drop to be recovered.

43 represents a box with inclosed and opaque sides and front and whoseback' is formed by the front wall of the duct 10; said box depending from the shelf 6. 44 represents posts extending from the shelf 5 to the lower front cornersof said box. The bottom, 45, of said box is a glass plate, and 46 is a glass plate filling in the space between the posts 44, the shelf 5 and the box 43. Thus the space between the'bottom of the box 43 and the shelf 5 is therefore provided with a transparent glass wall or shield in front but is open at the sides. 47' is ala-mp support depending in the box 43 and provided with a lamp 48 which illuminates from above the space in shelf 5 below the box 43.

C is a'dental engine mounted on the top 3 so that its flexible driving shaft 49 may be either turned up out of the way, or turned down as shown in Fig. 1, so that its drill chuck may be inserted, from the side, under the box 43, as shown.

50 is a door or closure in the front wall of the duct 10 below the box 43. Vhen said door is opened, the dust from the working 7 materials or substances rolling or moving off.

the shelf 4. When turned u and secured, the apron acts'as-a closure or the shelf 4 and the compartments floored thereby, thus concealing and protecting their contents.

54: represents storage drawers for tools, supplies, &c., fitted between the sides 1 below the shelf 4 and in front of the hopper 38.

When work is to be done on this'shelf 4, the door 50 is closed and all of the drawers 4.0 are pushed in to cover the ports 39, except in the case of the working compartment in front of which the work is to be done. In the case of said compartment, the drawer is drawn forward until the apex of its shield is under the motor shaft, and thus exposing the corresponding port 39. Thus, while the pumice paste discharged from the rotary tool, and similar liquids are thrown down into the front incline of the shield and thus caused to run down into the interior of the drawer, the remaining refuse and dust is directed toward and sucked down the port 39 into the hopper 38, the heavier elements, such as particles of gold falling down into the removable recovery box 42, while the lighter material is sucked up the duct 10 into the chamber 16 wherein the air is sucked through the filter walls 22, depositing the dust and other suspended materials on said walls, while the filtered air is discharged by the fan to atmosphere. The filter may be removed at proper intervals for cleaning its walls and the recovery of valuable material therefrom. p

Also the chamber 16 may be swept of precipitated dust.

When work is to be done on the shelf 5' under the box 43, all of the ports 39 are closed and the door 50 opened. The work is held under the glass bottom 45 and in the rear of the glass shield 46 and the drill or other tool on the end of the flexible engine shaft is applied thereto, the hands of the operator being inserted from the sides.

The work is illuminated by the lamp in box 43, but the opaque walls of the box prevent the light shining into the operators e es.

The door 50 is opened, thus causing all dust and refuse to be sucked back into the duct 10, as heretofore indicated.

From the foregoing is apparent that my combination cabinet is a very advantageous and convenient piece of furniture inasmuch as it fulfils all the purposes and requirements of both operative or oral and laboratory work.

Although, for the sake of clearness, I have minutely described the embodiment of the principles of my invention illustratedin the drawings, I do not wish to limit myself thereby, but claim broadly;

1. In a cabinet of the character described, the combination of a working compartment inclosed at the bottom, top, sides and rear and adapted to contain a power tool, a port in the floor of said compartment, a drawer slidably mounted on the floor of said compartment and adapted when pushed in to partment and adapted when pushed in to.

close said port, means for applying suction to said port for the withdrawal of the dust and refuse caused by the operation of said tool, and a double pitched reflector on-the rear portion of said drawer adapted when said port is open to direct the dry dust and refuse toward said port and the liquid refuse forwardly into said drawer.

3. In a cabinet of the character described, the combination of a plurality of horizontally alined working compartments, a container for dust and refuse beneath said compartments, a port connecting each of said compartments with said container, sliding drawers in said compartments adapted to open and close said ports, and means for applying suction to said container.

' 4. In a cabinet of the character described, the combination of a plurality of horizontally alined working compartments, a receiving container beneath said compartments, said compartments being individually connected with said container by means of valved ports, vacuum producing means in the upper part of said cabinet, and {a duct leading from said container to said means.

5. In acabinet of the character described, the combination of a plurality of horizontally alined working compartments, a receiving container beneath said compartments, said compartments being individually connected with said container by means of valved ports, an air-filter in the upper part of said cabinet, a duct connecting said container with one side of said filter, and vacuumproducing means connected to the other um producing means connected to the upper part of said chamber.

7 In a cabinet of the character described,

the combination of a plurality of horizontally alined working compartments, a receiving hopper beneath said compartments and connected to each of the latter by means of valved ports, a chamber in the upper part of said cabinet, a duct connecting the lower portion of said chamber with said hopper, vacuum producing means connected to the upper portion of said chamber, and a textile air-filter mounted in said chamber to intercept the current of air sucked through the same.

8. In a cabinet of the character described, the combination of a plurality of horizontally alined working compartments, a receiving hopper beneath said compartments and connected to each of the latter by means of valved ports, a removable closure for the throat of said hopper for theremoval of heavy particles of refuse, va chamber in the upper portion of said cabinet, a duct connecting-said hopper with said chamber, a vacuum producing means connected to the upper portion of 'said chamber, an air-filtering means mounted in said chamber and intercepting the traveling air.

In a cabinet of the character described, the combination of a plurality of horizontally alined working compartments, a receiving hopper beneath said compartments and connected to each of the latter by means of a valved port, a vertical duct having its lower end connected to said hopper, and means for applying suction to the upper end of said duct. V

10. In a cabinet of the character described, the combination of a plurality of horizontally alined working compartments, a receiv ing hopper beneath said compartments and connected to each of the latter by means of a valved port, a vertical duct having'its lower end connected to said hopper, means for applying suction to the upper end of the duct, and a removable box forming the closure for the throat of said hopper.

11. In a cabinet of the character described, the combinationof a compartmentedworking shelf, a container beneath said shelf, a port connecting each of said compartments with said container,'valves for said ports,

7 said filter.

an air filter, communicating with said'-contamer, and means for applying suction to 12. In a cabinet of the character described, the combination of a working shelf, a container beneath said shelf, a port connecting said shelf with said container, an air filter above said container, an air duct connecting said container with one side of said filter, and means for applying suction to the other side of said filter. V

13. In a cabinet of the character described, the combination of a workingcompartment I having a transparent top and provided w th suction means for theremoval of the refuse of working, and a lamp compartment above said working compartment and whose floor is formed by. the transparent top of said working compartment, and said lamp com partment being provided with an opaque front wall to prevent the light shining into the eyes of the operator;

14. In a cabinetof thecharacter described, the combination of a working compartment having a transparent top and provided with valved suction means for the removal of the refuse of working, and a lamp compartment above said working compartment and whose I floor is formed by the transparent top of said workin com Jartment and said lam i compartment being provided with an opaque front wall to prevent the light shining into the eyes of the operator. g g

15. In a cabinet of the character described, the combination of a working compartment having a transparent top and front wall, the sides of said working compartment being open, and said working compartment being provided with suction means for the; removal of the refuse of working, and a lamp compartment above said working compartment, the floor of said lampcompart ment being formed by the transparent top of said working compartment and the front wall of said lamp compartment being opaque to prevent the light shining into the eyes of the operator. Y I

Signed at Pittsburgh, Pa., this 13th day of November, 1920.

RUDOLF KLICKDA.