US1729508A

US1729508A - Dispenser

Info

Publication number: US1729508A
Application number: US327865A
Authority: US
Inventors: Maurice O Emhoff
Original assignee: Individual
Current assignee: Individual
Priority date: 1928-12-22
Filing date: 1928-12-22
Publication date: 1929-09-24
Anticipated expiration: 1946-09-24

Description

Sept. 24, 1929. M. o. EMHOFF DISPENSER Fild Dec. 22, 1928 3 Sheets-Sheet l gnveufoz M 0. Email);

p 24, 1929- M. o. EMHOFF DISPENSER 1.928 3 Sheets-Sheet 2 Filed Dec. 22

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Patented Sept. 24, 1929 PATENT OFFICE MAURICE 0. EMHOFF, F JERSEF CITY, NEW JERSEY DISPENSER Application filed December 22, 1928. Serial No. 327,865.

The present invention relates to dispensterials which are used around a dental laboratory, and which will deliver the materials in desired quantities proportionate to certain mixtures to be made, and in accordance with' predetermined quantities of fluid, such as water, which may be placed in bowls or the like in which the ingredients are to be mixed.

Another object of the invention is to provide a dispenser or cabinet with a hopper adapted to contain dry material in powdered form or the like adapted to be made into a paste or mix, and to provide the cabinet with means for holding a bowl or other suitable receptacle in a definite fixed position, and

to further provide dispensing means which is. graduated according to a predetermined index, so that the means may be adjusted for delivering into the bowl, a predetermined .quantity of the wdered-material, according to the set in ex.

This object of the invention contemplates the reduction in the amount ofmaterial which is wasted when handlin the material in the original container, an at the same time to provide a dispenser wherein the definite desired proportions of the liquid and the granular material or powder is delivered or placed in the bowl, and whereln the amount of the powdered material delivered to the bowl may be adjustably determined according to the bulk or body of the-water which is placed in the bowl so that mixtures of different quantities of material may be quickly and easily dispensed from the cabinet and to take care of the different sizes and characters of the work to be done with the llllx.

Another object of this invention is to provide a dispensing cabinet of this character wherein a plurality of hoppers or receptacles and their accompanying ad ustable dispensing mechanism may be mounted in relatively compact form. and wherein access may be easily and readily had to each individual dlspenser, and wherein the cabinet may be constructed not only for housing the above nstrumentalities, but also for accommodating various accessories which are used about the dental laboratory, such as impression holders, bottles, scrapers, knives, portable receptacles and the like.

The invention still further aims at the provls on of means for holding a mixing bowl in correct position for receiving the powder substance from the dispensing mechanism, and by means of which the receptacle or bowl may be uickly and easily removed after receiving t e charge of the material, the invention also providing a novel means for mlxlng the powder material and the fluid without removing the bowl from the distrlbuting device, the mixing feature being incorporated in the measuring and distributmg or dispensing structure.

The above, and various other objects and advantages of this invention will be in part described in, and in part understood from, the following detailed description of the present preferred embodiment, the same being illustrated in the accompanying drawings, wherein Figure 1 is a front elevation of a dispenser constructed according to the present invention, the doors being open and the device being ready for use.

Figure 2 is a vertical transverse section taken through the same substantially on the line 2-2 of Figure 1.

Figure 3 is a detail enlarged sectional view taken through one of the dispensing mechanisms, showing the adjacent parts, and a mixing bowl in position to receive the powdered material, the section being taken substantially on the line 33 of Figure 4.

Figure 4 is a similar View taken at right angles to Figure 3, and substantially on the line 44 of Figure 3.

Fi ure 5 is a horizontal section taken substantlally on the line 66 of a Figure 4: through the bowl holding device, showing the device open ready to receive a bowl, and

Figure 6 is a similar view takenon the line 66 of Figure 4 and showing a bowl in position.

Referring now to the drawings, and first to Figures 1 and 2 in particular, the dispenser of this invention is mounted in multiple in a a cabinet 10 which is provided with an enclosing back wall 11, while the front of the cabinet 10 is closed by a pair of doors 12. A

horizontal partition 13 is disposed intermediate the top and bottom portions of the cabinet 10 and extends forwardly from the rear Wall 11. A vertical partition 14 extends from side to side of the cabinet, and from the horizontal partition 13 to the top of the cabinet. The vertical partition 14 is located in spaced relation to the back wall 11 so as to provide a storage space between the back Wall of the partition. The storage space is divided into a number of bins or compartments by transverse partitions 15 which may be in any desired number, three being shown in the present instance, to provide separate bins or hoppers for segregating different materials which may be stored in the cabinet. The top of the cabinet 10 may be provided with a lid or closure 16 for each bin or compartment so that the granular or powdered substance may be poured downwardly through the top of the cabinet into the selected bin or hopper.

Vhile the cabinet may be given any desired configuration and size, and may be made to accommodate any desired number of compartments or bins, the present cabinet is shown as provided with four compartments or bins and a separate adjustable dispensing mechanism in connection With each one.

In the bottom of each bin there is disposed a hopper 17 which may be of any suitable construction and provided with inner downwardly converging side walls adapted to direct the material in aconcentrated stream through an opening 18 in the horizontal partition 13. Beneath the partition 13, and in line with the opening 18 therethrough, is disposed a dispensing housing 19, best shown in Figures 3 and 4, and which may be an integral casting, or may be made in any other suit able manner for economical production and assemblage. The housing 19 is rovided at its upper end with an upwardly aring ope'n-' ing 20 which opens at its lower end into the upper side of a cylindrical opening or cavity 21 which extends horizontally through the housing 19. A horizontal shaft 22 is arranged coaxially in the cylindrical opening 21 and extends from front to back to the housing 19, and has bearing at opposite ends in the housing. Mounted on the shaft 22, and disposed within the cylindrical opening 21. is an adjustable measuring drum 23v mounted to turn with the shaft 22.

The forward end of the shaft 22 projects beyond the housing 19 and is provided with a handle 24 by means of which the shaft 22 and the drum 23 may be turned, and the handle 24 is provided with a suitable pointer or index 25 adapted to traverse a scale 26 for determining the correct and proper adjustment of the drum 23.

The drum 23 is provided, in its periphery and at opposite sides, with cavities 27 which are proportioned in size to receive quantities of material from the bin or hopper propor tional to the respective indices on the scale 26. The cavities 27 and the indices of the scale 26 may be of course changed as to their specifically disclosed designations, and also as to their relation one to the other as may be required in the use of different materials.

The housing 19 is provided, beneath the drum 23, with a discharge shutter or gate 28 mounted on a horizontal shaft 29 which extends through the housing 19 and is adapted to be lowered into open position. as shown in Figure 4 in dotted lines, by a handle 30 carried upon the forward end of the shaft 29 and preferably located adjacent to and below the handle 24. The shutter or gate 28 is normally held in closed position, as shown in full lines in Figure 4, by spring 31.

The lower end portion of the housing 19 is hollow and is provided near its lower end with a transverse web 32 which provides a support for a vertically and axially disposed shaft 33 which extends below the lower end of the housing 19 and is provided upon its lower end with a suitable chuck 34. The chuck 34 is adapted to detachably carry a paddle, spatula or other suitable implement for mixing upon its lower end, as shown at 35.

The upper end of the shaft 33 terminates in a cavity in the web 32, and is connected to a forwardly and horizontally extending shaft 36 which is connected to the shaft 33 by pinions 37, and which is provided with a handle 38 upon its forward end at the front of the housing 19. 1

The lower end of the housing 19 1s preferably closed by a screen 39 upon which the powdered material from the drum 23 is adapted to drop, the web 32 being provided witha hood 40 which closes the cavity in the web 32 and deflects the material 1 from the web and from the pinions 37. In order to insure the even distribution of the powdered material which is dispensed from the cabinet, the shaft 33 is provided with a brush or spreader 41 disposed above the screen 39 and adapted to spread the material evenly over the screen 39 and insure the passage of the material through the screen.

The material dispensed is adapted to be delivered in the selected quantities into a bowl or receptacle 42, and means is provided for detachably holding the bowl 42 in suitably spaced relation beneath the screen 39 and in such manner that the material cannot readily be spilled or lost in its passage through the mechanism. The supporting device com-" prises a ring shaped socket 43 into which may be passed upwardly the outwardly flaring flange 44 on the upper edge of the bowl 42, a normally contracting retaining wire 45 being mounted in the ring 43 and adapted to engage beneath the flange 44 to support the bowl 42 in raised position.

The ring 43 is provided at its upper end with a collar portion 46 adapted to be secured about the lower end of the housing 19 for supporting the ring 43. It will be noted that the spatula 35 is of suitable size and configuration to fit in the bowl 42, in close relation to the bottom thereof so as to impart the desired mixing or action of the spatula against the material which is deposited in the bowl. The-bowl 42 is preferably made of flexible rubber and may be provided at one or more sides on its inner wall with graduation marks 47 which are proportioned with the indicia of the scale 26 and the sizes of the cavities 27 so that liquid, such as water, to the desired amounts may be placed in the bowl 42 and the corresponding adjustment made of the dispensing mechanism so as to deliver the right amount of the powdered substance to the bowl and insure a uniform plastic mass of the desired working consistency.

If the graduations 47 are not placed on the bowl 42, then the definite proportions of the liquid in thebowl-may be measured from a separate vessel, or by any other suitable means or method.

Having thus described the invention, it is thought that its manner of use and operation will be apparent. If it is desired to make a mix of water and one of the ingredients, such as dental plaster, the bowl 42 is disengaged from its holder and is filled with water or other suitable fluid to the desired height, as indicated by the graduations 47.

If a relatively large mix is desired, the bowl 42 is filled to the graduation 8. The bowl 42 is now moved upwardly about the spatula 35 and is engaged with the supporting ring 43. The handle 24 is now turned so as to dispose the pointer 25 opposite the number 8 of the scale 26. This adjustment brings the cavity 27 of the drum 23 which is marked 8 in Figure 4, and which corresponds in size to the desired amount of material to be used, into line with the lower end of the bin and in regis ter with the opening 20 of the housing 19, the opening 18 of the horizontal partition 13, and the hopper bottom 17 so that the material is permitted to fall into the cavity 27 which is designated as 8 and fill the cavity.

It is now necessary to turn the handle 24 slowly in either direction so as to make a half turn of the drum 23, so that the cavity 8 is brought to the bottom immediately above the gate 28. This disposes the handle 24 in a raised position and substantially in line with the number 8 of the scale 26.

W'hen the handle is thus raised it is permitted to rest in this position and the operator now depresses or swings the handle so as to open the gate 28 and permlt the material from the cavity 8 to fall into the lower end of the housing 19 and uponthe screen 39. After the handle 30 is held down for a short period of time, it is released and the spring 31 returns the gate to closed position so that during the subsequent turning of the drum 23 the contents of the various cavities will not be discharged through the housin 19.

In order to insure the proper discharge of the material through the bottom of the housing 19 and to spread the material evenly in the bowl 42 the handle 38 is now turned so that the brush or wiper 41 spreads the material over the screen 39 and forces the material downwardly through the screen and spreads the material sufficiently over the screen to cause it to fall substantially uniformly into the bowl 42. As the handle 38 is rotated the spatula is also rotated so that the material is thoroughly intermixed with the fluid contained in the bowl and a paste of the desired consistency is thus provided.

It is readily seen that there is no spilling or loss of the material, and the correct proportions of the liquid and the granular substances is always had for mixes of the desired size. It will be noted that the attaching flange 46 and the ring 43 are integral, and they may be formed from a single piece of sheet metal so that there is a continuous enclosing wall between the supporting ring 43 and the lower end of the housing. 19 to keep the material from spilling out of the bowl 42 during the stirring action and also during the feeding of the material downwardly into the bowl.

As shown in Figures 1 and 2, the vertical partition 14 which forms the front wall of the bins orhoppers is spaced inwardly from the doors 12 and is utilized for accommodatin a number of hooks 48 suitably spaced apart for accommodating impression holders 49, trays, or other accessories which are used about the laboratory.

The forward portion of the horizontal partition 13 extends beyond the partition 14 and towards the doors 12 and provides a shelf upon which may be accommodated various articles, such as bottles, receptacles, scrapers and the like as shown at 50. A rack 51 may be mounted on the front side ofthe partition lit positioning of the bowls in the cabinet and beneath the dispensing mechanism.

It is of course understood that various changes and modifications may be made in the details of construction and design of the above specifically described embodiment of this invention without departing from the spirit thereof. such changes and modifications being restricted only by the scope of the following claims.

\Vbat is claimed is:

1. In a dispenser, a bin for granular material, a receptacle for liquid. a quantity segreating member beneath the bin, a gate beneath said member. adjusting means for said member, said adjusting means and said receptacle having cooperating scales thereon for definitely determining proportionate quantities of liquid and granular material. and means for operating said gate for releasing the selected amount of material into the receptacle.

2. In a dispenser. a bin for granular material, a receptacle for liquid. a drum mounted beneath the bin and provided with cavities therein varying in size adapted to receive different quantities of material from the bin, turning means for the drum. said receptacle having a scale of graduations thereon for determining the amount of liquid in the receptaele and said turning means having a scale arranged according to the. sizes of the cavities in the drum, said scale and said graduations bearing a definite relation to each other for proportioning the correct amounts of liquid and granular substances to the mix in the receptacle. and gate. means for delivering the selected amount of granular material to the receptacle after the turning means has been set.

3. In a dispenser, a bin for granular material, means for supporting a receptacle beneath the bin, adjustable means for selecting a desired amount of material from the bin, means for determining said amount of granular material from the bin proportionately to the amount of liquid in the receptacle, and means for spreading the granular material as it is delivered to said receptacle.

4. A dispenser comprising abin for granular material, a housing arranged beneath the bin, a measuring drum disposed in the housing and having cavities of difi'erent sizes for the reception of the granular material from the bin, adjusting means connected to the drum for turning the same into definite positions for taking on desired quantities of material from the bin, said adjusting means having a scale for determining the adjustment of the drum, a gate mounted in the housing beneath the drum. a handle connected to the gate for operating the latter to discharge the selected quantity of material from the drum. spreading means arranged in the bottom of the housing for spreading the re- ,leased material, and means for supporting a receptacle beneath the housing to receive the material therefrom.

5. In a dispenser, abin adapted to receive granular material, a housing mounted beneath the bin, a drum mounted for rotation in the housing and having cavities therein of diilerent sizes. a handle for operating the drum, and indicating means associated with the handle and the housing for determining the adjustment of the drum for measuring oil desired quantities of the material.

(3. In a dispenser, abin adapted to receive granular material, a measuring drum mounted beneath the bin, means for turning the drum to measure off selected quantities of the material from the bin, releasing means dis posed beneath the drum adapted to release the selected quantity of material from the drum. means for supporting a receptacle beneath the releasing means, and a combined spreading and mixing device disposed between the receptacle and the releasing means for distributing the released material from the. drum throughout the cross-sectional area of the receptacle and for mixing the material therein.

7. In a dispenser, a cabinet, a plurality of bins disposed in the cabinet and adapted to receive the granular material. an independent housing mounted beneath each bin, a measuring drum disposed in each housing and having cavities of different sizes adapted to receive ditterent quantities of material from the respective bin, combined indicating and adjusting means for actuating the drums to adjust the same for delivering predetermined quantities of the material, and means upon the lower end of each housing adapted to support a receptacle for receiving the material from the drum.

8. In a dispenser.- a cabinet, a. plurality of bins mounted in the upper end of the cabinet, adjustable dispensing means disposed beneath each bin and having a scale thereon determining the adjustment of the dispensing means for delivering predetermined quantities of material from the bin, means for releasing the measured quantities of material from the dispensing means, means for spreading and mixing the released material, and means for supporting a receptacle in position to receive the material and have the material mixed therein.

9. In a dispenser, a bin for granular material, a receptacle for positioning beneath the bin. means between the'b'in and the receptacle for dispensing desired amounts of the granular material from the bin to the receptacle, said receptacle adapted to contain a predetermined amount of liquid: and means for mixing the granular substance and the liquid together in said receptacle.

In testimony whereof I aflix my signature.

MAURICE o. EMHOFF.