US2567992A

US2567992A - Garbage grinder

Info

Publication number: US2567992A
Application number: US625266A
Authority: US
Inventors: George R Coss; Kemper M Hammell
Original assignee: EUREKA WILLIAMS CORP
Current assignee: EUREKA WILLIAMS Corp
Priority date: 1945-10-29
Filing date: 1945-10-29
Publication date: 1951-09-18
Anticipated expiration: 1968-09-18

Description

2 Sheets-Sheet 1 G. R. COSS ET AL GARBAGE GRINDER Sept. 18, 1951 Filed oct. 29, 1945 SePt- 18, 1951 G. R. coss ET Al. 2,567,992

GARBAGE GRINDER Filed oct. 29, 1945 2 sheets-sheet 2 HTTOF/VEV.

Patented 18, 1951 UNITED4 STATES PATENT OFFICE GARBAGE GRINDER George R. Coss and Kemper M. Hammell, Detroit,

Mich., assignors to Eureka Williams Corporation, a corporation`of Michigan 'Application October 29, 1945, Serial No. 625,266

11 Claims.

This invention relates to means adapted to be associated with the drain output of a sink for reducing garbage so that the same may be carried by water through a sewer system, such means being commonly referred to as garbage grinders.

Principal objects of the invention are to provide:

A new and improved construction for a garbage grinder;

A novel and simple closure for a garbage grinder;

A new and improved closure and motor switch control for a garbage grinder.

Other and further objects of the invention will be apparent from the following description and claims and will be understood by reference to the accompanying drawings, of which there are two sheets, which, by way of illustration, show a preferred embodiment and the principles thereof and what we now consider to be the best mode in which we have contemplated applying those principles. Other embodiments of the invention may be used and structural changes may be made as desired by those skilled in the art Without departing from the present invention and the purview of the appended claims.

In the drawings Fig. 1 is a fragmentary sectional view of a deviceembodying the invention;

Fig. 2 is a diagrammatic view of the motor circuit for the device;

Fig. 3 is a plan View of the device separated from the sink;

Fig. 4 is a fragmentary elevational view of the foot-operated motor and closure control; and

Fig. 5 is a front elevational View of the footoperated portion of the device shown in Fig. 4.

In the embodiment of the invention selected for purposes of illustration, the garbage grinder comprises a generally cylindrical, vertically cxtending chamber I0 provided at its bottom periphery with axially extending cutting or shredding teeth I2 and a series of slots I4 forming a lateral discharge for the reduced material, a co1- lecting trough I6 surrounding the cutting teeth I2, power driven rotary hammers or impellers Il inthe bottom of the chamber I0 for impelling material on the bottom wall I9 thereof against the teeth I2 and for expelling reduced material outwardly through the discharge outlet into the trough I 6, and an electric motor for driving the impellers.

The chamber I0 may be provided by a plurality of

castings

22, 24 and 26 and a, shredding ring 21 in which the teeth I2 are formed. The

motor 20 may be bolted to the cup-shaped lower casting member 26 and have its shaft 28 project upwardly through a suitable opening in the bottom wall of the chamber I0 at the center thereof. The bottom wall at the center thereof may be recessed so as to accommodate a running seal 32 for the shaft 28.

The upper casting member 22 of the chamber I0 is formed for attachment to a drain outlet of a sink 36. In this case the drain outlet may be formed by a neck 34 which seats within an opening in the bottom wall of the sink 38 and the neck 34 is externally threaded at the lower end thereof for threaded engagement with the threads formed in the upper part of the casting member 22.

The

casting members

22 and 24 may be frustoconical in shape so as to form a frusto-conical chamber I0. The meeting edges of the

casting members

22 and 24 are separated by gasket members 40, the outer edges of which are lapped over outwardly projecting exterior anges 42 on the

casting members

22 and 24, and an annular contractible channel-shaped clamping ring 44 extend around the chamber II) and encloses the anges 42 as covered by the edges of the gaskets 40 so as to clamp the

casting members

22 and 24 together and to form a seal therefor.

The casting member 24 and the parts associated therewith may be assembled to the casting member 22 after the latter has been assembled to the drain outlet 34 of the sink. One end of the clamping ring 44 has a bolt 46 secured thereto which extends through an eye 48 carried on the other end of the clamping ring and a nut 50 threaded on the bolt 46 and tightened thereon functions to tighten the clamping ring 44 and the anges 42 and to secure the casting member 24 and the parts associated therewith in depending relationship to the casting member 22.

The sides of the clamping ring 44 project outwardly relative to each other so that as the ring is tightened, the

casting members

22 and 24 will be drawn together so as to clamp the gaskets 40 securely between the flanges in order to estabish a watertight sealed joint between the

members

22 and 24.

The lower end of the casting 24 projects outwardly from the main cylindrical portion thereof and is shaped to seat upon a complementary shaped part of the casting 26 and to cooperate therewith so as to form the trough I6. A series of bolts 52 cooperating with tapped and threaded holes in the flanges of the

casting members

24 and 26 securely clamp the same together.

atomes Inwardly of the trough i6 the

casting members

28 and 24 are formed with annular ledges which provide seats for the shredding ring 2l, the upper and lower edges of which are arranged on such ledges so that when the

casting parts

24 and 28 are assembled such shredding ring 2l will be secured in position.

The shredding ring may comprise a ring of tempered steel spring (but not brittle) which is formed to provide a series of vertically extending teeth or cutters i2 which may slope from their base to the top in a direction opposite the direc-la tion of rotation of the impellers it, and also to provide the slots ld which define the outlet from the chamber it.

The shaft 28 projects upwardly above the bottom wall I9 of the chamber i@ and has amxed thereto a hub 'it having two oppositely arranged radially extending arms l2. The inner ends of each of the hammers it are bifurcated so as to straddle an arm l2, and pins lli extending through aligned holes in the hammers it and the arms l2 provide a pivotal connection there between so that the hammers it are free to swing in a plane normal to the axis of rotation of the hub 'l0 and the hammers te.

Centrifugal force will tend to keep the hammers in their extended position during operation of the motor whereupon the hammers will function to propel material against the teeth i2 and to propel reduced material through the slots ld, the size of the opening it limiting the discharge of material from the chamber i@ until the particles thereof are of such size that they may be propelled through the openings rlli.

The construction and operation of the reducing means of which the hammers te and teeth l2 form a part is more fully described and claimed in our prior cao-pending application Serial No. 564,118, iiled November 16, 1944, now Patent No. 2,421,014, of which the present application is a continuation-impart.

The trough it terminates in a coupling member te which is adapted to be connected to the sewer system of the building.

The inlet defined by the neck 3d is adapted to be closed by a valve member or closure et which has a universal mounting 92 on an arm @d xed to a pivot shaft 96. The arm 9d is spaced from. the closure @il so that the same may rock thereon. A bump 9i and a pair of arms @t limit the rocking movement of the closure t@ relative to the arm iid. With this arrangement the closure member 90 is adapted to seat against a seal it@ c zrried by the neck 3d and forming a seal therewith so as to close the opening defined by the neck 3d when the parts are arranged as illustrated in Fig. l. Downward movement of closure @il permits water and/or garbage to pass through the neck 34 into the chamber id.

The shaft 96 'is pivoted in suitable journals N2 formed integral with the casting member 22 and a coil spring itl having the inner end thereof connected to the shaft t@ and its outer end anchored by a pin itt is arranged to act on the shaft 96 so as to bias the closure t@ to its closed position, that is, the position in which it is illustrated in Fig. 1.

The shaft 98 has a cam or lever it@ fixed thereto for rotation therewith. and this cam is provided with notches i i2 and i id and a lug forming a stop M5. A roller lit carried by an arm it@ pivoted on the pin it@ is adapted to cooperate with the notches M2 and. iid so as to hold the cam till and the shaft se and the closure et in either of its two positions. When the roller I Il is arranged in the notch H2, which will occur when the cam H0 is turned slightly in a counterclockwise direction from that illustrated in Fi. 4, the closure Sli will be slightly open, that is, spaced from the gasket |00 so as to permit the passage of water through the neck 34 into the chamber i0.

When the roller M6 is seated in the notch H4, which occurs when the cam H0 is rotated further in a counterclockwise direction, the closure El will be correspondingly moved away from the seat im) so as to provide an unobstructed passageway for the passage of material into the chamber Il through the neck td.

When the closure Sli is in either of its two positions just mentioned, it may be returned to its closed position by pressing downwardly on the closure 90 sufficiently so as to move the roller out of the notch M2 or iid with which it is en gaged and then by suddenly releasing the closure the same will move to its closed position The stop lib limits the opening movement of the closure 90.

A link i2@ is pivoted to the cam llt and connected to a foot-operated lever i22 arranged on the iloor adjacent the sink so that by stepping on the foot pedal end lZ's` of the lever, the closure may be opened or further opened. Also by pressing on the pedal when the roller H6 is in either of the notches M2 or iid and then releasing the pedal suddenly the closure will also move to its closed position. This thus provides for foot-operated or hand-operated control of positioning of the closure 90.

The arm Mt is spring biased in a clockwise direction and the roller lt carried thereby. together with the notches M2 and iid, form detent means which are selectively operable for holding the closure il@ in either of two positions: namely, one in which the closure is slightly open so as to permit the iiow of water into the cham ber it; and the other in which the closure @t is depressed sumciently so as to permit the passage of garbage into the chamber lil through the neck 3d. The actual positioning of the closure QB for either of the two positions will depend upon the positioning and spacing of the notches @it and Mil.

The lever l22 is pivotally mounted on a bracket im which is swiveled by means of a pin i2@ on a bracket igt mounted upon a base i311, the base being adapted to be arranged on the floor below the vertical axis of the pin B26. A casing E32 encloses the parts of the foot-operated con trol except the pedal 23, and has mounted thereon a switch i3d which is arranged opposite the support for the motor 2t. The switch 934 may be of the single vaction type and include a button tt positioned to be engaged by the side of the lever 622. Pressing of the button H36 is adapted to actuate the switch mechanism so as to close the switch. When the button itt is released the switch i3d will open The button |38 is positioned to be engaged and depressed by lateral movement in one direction of the lever l2? permitted by moving the bracket i213 about its vertical pivot |26 when the side of the lever,` 22 opposite the switch H34 is pressed laterally ttoward the switch 34. and when the lever H22 is arranged in position with the closure in its closed position or in the posi tion determined by the notch H2. There is sufficient play in the connection between the lever H22 and the link i2@ to permit a slight pivosiu/lmv of the lever 22 about the vertical axis defined by the pin |26. Thus the pedal |23 may be actuated to manipulate the closure 00 as well as the switch for the motor circuit.

It will be seen from the foregoing that the lever |22 is shown in its upmost position in which the closure 90 is in its closed position against the Seat |00 and in which it is out of contact with the button |36, the depression of which by the lever is adapted to close the switch |34. From such position the lever |22 may be moved either downwardly or laterally within vertically or laterally extending portions of the slot |38.

Ii' the lever |22 is moved downwardly during the first part of such movement, the closure 90 will be open slightly upon its seat 00 so as to permit the flow of water and other fluid material from the sink, and in such position if the lever is not further depressed, the roller ||6 will become resiliently engaged within the notch ||2 for maintaining the closure 90 in the aforesaid slightly open position. Thereafter the closure may be released for closing movement upon its seat |00 by slightly pressing upon and then releasing either the pedal |23 or the closure 90 as has been previously described.

If it is desired to permit the entrance of garbage from the sink into the container l0, then this may be done by depressing the lever |22 beyond the point at which the roller ||6 engages the notch ||2. Such further movement of the lever |22 will rotate the cam ||0 until the roller H8 comes in contact with the notch |4 and the detent mechanism previously described will now retain the roller |6 in the notch I4, thus maintaining the closure 90 in a position in which the opening between the sink and the container I0 is entirely unobstructed by the closure 90. In such position the garbage from the sink can be transferred to the container l0 until the container Il is filled to any desired extent.

Thereafter the closure 90 may be released as has been previously described by pressing and quickly releasing either the pedal |23 or the closure 90. In such event the lever |22 will again be returned to the position in which it is illustrated in Fig. 5.

In the event it is desired to operate the garbage grinding mechanism for the purpose of grinding the garbage so transferred to the container |0, it is necessary only to press laterally upon the pedal |23 in such manner as to rotate the lever upon its pin |26, and in such event the lever will be moved laterally within the transverse portion of the slot |38 into engagement with the button |36. When the button is depressed suiiiciently to cause operation of the switch |34 for closing the circuit through the garbage grinding mechanism the lever |22 may be depressed vertically into the notch |40, in which event the "roller ||6 will again be engaged in the slot I2 and will be maintained in such slot by the aforesaid detent mechanism for continuing the operation of the garbage grinding mechanism after the pressure on the lever |22 is released.

When it is desired to discontinue the operation of the garbage grinding mechanism this may be leasing either the pedal |23 or the closure i0 which thereupon will release the lever |22 from the notch |40 to permit the lateral movement of the lever into the position in which it is shown by Fig. 5, in response to the outward or switch opening movement of the button |36 previously described.

While We have illustrated and described a preferred embodiment of our invention, it is understood that this is capable of modification and ,we therefore do not wish to be limited to the precise details set forth but desire to avail ourselves of such changes and alterations as fall within the purview of the following claims.

We claim:

1. Garbage disposal apparatus comprising a container having an inlet adapted to be connected to the drain outlet of a sink and a closure seat surrounding said inlet, a pivoted closure arranged to bear against said seat for closing said inlet. said closure being mounted in said container so as to swing inwardly into said container to open said inlet thereof, universally mounted means foimoving said closure to open position upon movement of said means in one direction, and detent means cooperable with said pivoted closure for maintaining said closure in said open position.

2. Garbage disposal apparatus comprising a container having an inlet adapted to be connected to the drain outlet of a sink and a closure seat surrounding said inlet, a pivoted closure arranged to cooperate with said seat for closing said inlet, said closure being mounted in said container so as to swing inwardly into said container to open said inlet thereof, universally mounted means for moving said closure toward open position upon movement of said means in one direction, and detent means cooperable with said closure for maintaining said closure in a plurality of different open positions thereof.

3. Garbage disposal apparatus comprising a container having an inlet adapted to be connected to the drain outlet of a sink and a closure seat surrounding said inlet, a closure arranged to cooperate with said seat for closing said inlet and being movable to a position to open said inlet, universally mounted means for moving said closure to a plurality of open positions upon movement of said means in one direction, and detent means cooperable with said closure in said positions thereof for maintaining said closure in such positions.

4. Garbage disposal apparatus comprising a container having an inlet adapted to be connected to the drain outlet of a sink, a closure member operable for obstructing said inlet, foot operated means connected to said closure member for moving the same to a non-obstructing position relative to said inlet, electric motor driven means in said container operable for reducing material therein, said motor being arranged in a circuit which includes a switch, said switch being constructed and arranged to be closed by a different movement of said foot operated means.

5. Garbage disposal apparatus comprising a container having an inlet adapted to be connected to the drain outlet of a sink. a closure member operable for obstructing said inlet and being movable to a non-obstructing position relative to said inlet, and foot operated pedal connected to said closure member for moving the same to a non-obstructing position relative to said inlet, electric motor driven means in said condone by pressing upon and then suddenly re- 73 tainer operable for reducing material therein,

vtainer for reducing said motor being arranged in a circuit which inciudes a switch, said switch being constructed and arranged to be actuated to closed and open position by a different movement of said foot opcrated pedal when said closure is obstructing said inlet.

6. Garbage disposal apparatus comprising a container having an inlet adapted to be connected to the drain outlet of a sink, a closure member for closing said inlet, means for moving said closure toward and away from said inlet for closing and opening said inlet, said means including a lever, said lever being movable in one direction for opening and closing said inlet, garbage grinding -mechanism associated with said container for reducing the material therein and switch means responsive to the movement of said lever in a dierent direction for operating said garbage grinding mechanism.

7. Garbage ldisposal apparatus comprising a container having an inlet adapted to be connected to the drain outlet of a sink, a closure member for closing said inlet, means for moving said closure member toward and away from said inlet for closing and opening said inlet, 'garbage grinding mechanism associated with said container for reducing material disposed in said container through said inlet, switch means for actuating said garbage grinder mechanism, said moving means including a single means for alternately operating said closure member and said switch means. 8. Garbage disposal apparatus comprising a container vhaving an inlet adapted to be connected to the drain outlet of a sink, a closure member for closing said inlet, means for moving said closure member toward and away from said inlet for closing and opening said inlet, garbage vgrinding mechanism associated with said container for reducing material disposed in said container through said inlet, switch means for actuating said garbage grinder mechanism, said means for moving said closure member being operative to actuate said switch means, said moving means being mounted for movement into a plurality of different positions, and detent means for selectively retaining said moving means in a plurality of said positions.

9. Garbage disposal apparatus comprising a container having an inlet adapted to be connected to the drain outlet of a sink, a closure member for closing said inlet, said closure member being movable toward and away from said inlet for closing and opening said inlet, garbage grinding mechanism associated with said conmaterial disposed in said container through said inlet, switch means for actuating said garbage grinder mechanism and a singie means for operating said closure member and said switch means, said single means being mounted for parallel movements into a plurality of diierentpositions and detent means for re- 8 siliently retaining said single means in some of said positions.

10. Garbage disposal apparatus comprising a container having an. inlet adapted to be connected to the drain outlet of a sink, a closure member for closing said inlet, means for moving said closure member toward and away from said inlet for closing and opening said inlet, garbage grinding mechanism associated with said container for reducing material disposed in said container through said inlet, said moving means including a single means for operating said closure member and said garbage grinding mechanism, said single means being mounted for movement into a plurality of different positions, a switch associated with said single means in one of said positions for closing a circuit in said garbage grinding mechanism in response to the movement of said single means into said one position, and detent means associated with said single means for resiliently retaining said means in some of said positions.

11. Garbage disposal apparatus comprising a container having an inlet adapted to be connected to the drain outlet of a sink, a closure member for closing said inlet, means for moving said closure mem-ber toward and away from said inlet for closing and opening said inlet, garbage grinding mechanism associated with said container for reducing material disposed in said container through said inlet, said moving means including a single means for operating said closure member and said garbage grinding mechanism, said single means being mounted for movement into a pluralityof different positions, a switch associated with said single means in one of said positions for closing a circuit in said garbage grind,- ing mechanism in response to the movement of said single means into said one position, and detent means associated with said single means for resiliently retaining said single means in said one position.

GEORGE R. COSS. KEMPER M. HAMMELL.

REFERENCES CITED The following references are of record in the le of this patent:

UNITED STATES PATENTS 1,613,848 Riegel Jan, 11, 1927