US1278501A - Machine for polishing, cleaning, and rinsing metal ware. - Google Patents

Description

.A- PERON.

MACHINE FOR POLISHING, CLEANING, AND RINSING METAL WARE.

APPLICATION FILED DEC. 26. I916- 1,%?8,501 Patented Sept. 10,1918

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, $5 I 0 0' Be N o O J g '&

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E Q o I a i E 3% R R NVENTOR 3i jnl ian 6-707Z A 77 OR/VE Y A. PERON.

MACHINE FOR POLISHING, CLEANING, AND RINSING METAL WARE.

APPLICATION FILED DEC. 26. I916.

Patentefl Sept.

- 4 SHEETSSHEEI 2.

nvmvron Anthony leron,

A. PERON.

MACHINE FOR POLISHING, CLEANING, AND RIN'SI'NG METAL WARE.

APPLICATION FILED nicyzs. 191s.

A. PERON. MACHINE FOR POLISHING, CLEANING, AND RINSING METAL WARE.

APPLICATION FILED DEC. 26. IBIS.

Patented Sept. 10, 1918.

4 SHEETS-SHEET 4.

INVENTOB ATTORNEY liquid to the ANTHONY rnaon, or new YORK, n. Y.

MACHINE FOR POLISHING, CLE ANING, AND RINSING METAL WARE.

Specification of Letters Patent.

, Patented Sept. 10, 1918.

Application filed December 26, 1916. Serial No. 138,755.

To all whom" it may concern:

Be it known that I, ANTHONY Peron, a citizen of the United States, residing at the city of New York, borough of Manhattan, county and State of New York, have invented a certain new and useful Machine for Polishing, Cleaning, and Rinsing Metal Ware, of which the following is a specification.

This invention pertains to means whereby metal ware, such as silver and silver plate, may be washed and cleaned, polished, rinsed and dried for all practical purposes, the same being useful more particularly by hotels and restaurants the conduct of which business enterprises usually requires and demands the daily handling of the so called table silver in large quantities.

According to this invention, the several operations are performed quickly and economically, said operationv being conducted, preferably, within one and the same chamber. Means are provided for. feeding the required soapy water to the chamber; other means are provided for feeding a hot rinsing chamber. and still other means are employed for mechanically agitating the metal ware in a manner to clean and polish the same.

Other features and advantages of the vention will appear from the following detailed description taken in connection with the drawings, wherein- Figure 1 is a side elevation of a machine embodying the invention, a part of a second or duplex machine being illustrated at the right of the figure.

Fig. 2 is a vertical sectional view taken in the plane of the dotted line and looking toward the left to show one of the machines in elevation.

Fig. 3 is a vertical section on an enlarged scale through the liquid vessel, the rotatable container and some of the parts associated therewith, the plane of the section being indicated by the dotted line 3 -3 of Fig. 2.

Fig. 4 is a vertical cross section on the line 44 of Fig. 3. i

Fig. 5 is an enlarged detail view, partly in section and pa means for locking and releasing the rotatable container and for controlling the container-driving means, the plane of the secor ends therefor.

open, and at each: side of the vessel is pro-.

way being cutaway, 1n-

. 15 is extended, as shown in Figs.

22 of Fig. 1.

-t-ly in elevation, to show the tion being indicated by the dotted line 5-5 of Fig. 3.

Fig. 6 is a horizontal section on the line 6-6 of Fig. 5.

Fig. 7 is a fragmentary detail plan view of aliquid-containing vessel and a part of the cover therefor.

Fig. 8 is a detail fragmentary view of a part of the liquid-containing vessel, illustrating the guideway for the sliding section of the cover.

Fig. 9 is a detail section through the ,collecting tube. illustrating the valve at the delivery end thereof.

Fig. 10 is a diagrammatic view, partly in section, illustrating the means for controlling the valves which change the direction of flow of the soapy liquid which may be forced by the pump into one or the other of two liquid-containing vessels.

.A designates a liquid-containing vessel supported in an elevated position by suitable frames 10, 11. This vessel is shown more particularly in Figs. 3, 4 and 7 the same consisting of a curved wall and suitable heads Thetop of the vessel is a part of said guideas at 13, see Fig. 7. The open top of the vessel is closed by a cover consistlng of two parts 14, 15. The part 14 is hinged to the vessel, as at 16, and this hinged part 14 is provided with a guideway 17. Within the guideway 17 of the hinged cover member 14 is slidably fitted the cover member 15. When the cover member 4 and 7 the edge portion ofsaid cover member 15 is received within the guideway 12 of the vessel A, thus retaining the two cover members 15, 14 in position when extended so as to close the vessel. The cover member 15 is provided with one or more handles 18 adapted to be grasped by the operator when it is desired vided a guideway 12,

to open the vessel, which operation is effected by sliding the in the guideways 12,

' rigidly together.

' preferably of the cover member 15 are contained withpart cover thusenables the entire top of the vessel A to be exposed'for convenient access, but when it is desired to close said vessel, the members 14, 15 are turned on the hinge 16 and the member 15 is drawn outwardly from the member 14. and into the guideway 12 of the vessel.

Within the chamber of the vessel A is positioned a horizontal rotatable container B, the same comprising heads 19, 20 and a barrel or drum 21, all the parts being united The barrel or drum is cylindrical and is perforated with numerous apertures whereby the liquid contained within the vessel A, or supplied interiorly of container B, as will presently appear, is adapted to circulate freely through and within said container during the rotation of-the'latter. It is obvious that the barrel or drum may be composed of perforated plates. Said barrel or drum is adapted to contain the metal ware to be cleaned and polished, for which purpose said container is intended to be filled, or partially filled, with a scouring agent, the same being in the form of a mass of non-corrosive metal balls, rings or perforated disks such for example as balls composed of Monel metal which, as is well known, is an alloy of a non-corrodible nature, the specific gravity of which is greater than that of steel. The cylindrical container is divided longitudinally to produce two sections 6, b which are hinged together at 22, thus enabling section b to be opened with respect to section I)" in order to gain access to the interior of the container for placing the metal ware therein or removing said ware therefrom. Means are provided for locking the sections 6, b of the container in fixed relation, Fig. 3 I employ locking devices consisting of arms 24 pivoted at 25 to. the section b,

said arms 24 carrying clamping screws 26 which are adapted for engagement with the hinged section b for the purpose of clamping the latter into firm engagement with the section b.

The container is rbtatably supported within the vessel A. by two shafts 27, 28, the former being a solid shaft whereas the latter is a hollow or tubular shaft, see Fig. 3. The'end walls of vessel A are. perforated so as to receive stufling boxes 29, each having a gland 30 adapted to compress a gasket within the stuffing box, thus making provision for securing a liquid-tight connection between the vessel A and the shafts of the container. Said shafts 27, 28 extend through of small diameter,

- preferably,

and as shown inv the stufling boxes and arerjournaled in appropriate bearings 31 provided on the frames 10, 11. The head 19 at one end of the rotatable container is provided with a feed channel 32 which is in communication with the passage of the hollow shaft 28. The drum or shell of the rotatable container is provided at diametrically opposite sides with longitudinally extending feed conduits 33, 34, the walls of which are impcrforate and which communicate at their end portions with the feed channel 32. Said feed conduits open inwardly with respect to the rotatable containers, for the purpose orly of said container, said liquid being supplied under pressure so that it will beforced into intimate contact with the metal ware present within the'container. For the purpose of excluding the metal balls constituting the scouring agent from the conduits 33, 34, slats 35 are provided within the container and across the conduits 33, 34. The slats are composed,

of wood, attached in any suitably way fixedly to the container, and said slats are provided with openings 36 which provide for the free flow of water from the conduits to the interior of the container.

Inaddition to the liquid conduits 33,34. the container is provided with a series of pockets 37, the same being composed of perforated metal and positioned to extend longitudinally of the container, said pockets being attached firlnlyto, or forming an integral part of, the container so as to rotate therewith. The perforated pockets have free communication with the interior The metal balls'which constitute the scour ing agent withinthe container are adapted .to pass through the openings 40, 38 so as to accumulate within the pockets 37 at the bottom side of the container, but as the container 'rotates the balls or rings .are carried upwardly so that the balls will be discharged from the pockets at the upper side of the container, whereby the balls or rings are returned to the container and are set in motion so that the mass of loose balls will operate with the desired attrition for the purpose of cleaning and polishing the metal .ware present within the container.

The shafts 2128 rotate. with the container. and for the purpose of supplying the rinsing liquid to the interior of the container when desired, a feed pipe 42 is coupled to the holthe openings from' against rotation when the part when the section 53 of a horizontal pivotal post gaging low shaft 28 beyond its bearing 31 inthe frame 10. As shown in Fig. 3, the feed pipe 42 enters the end of the. hollow shaft 28, and a stuffing box 43 is attached to the hollow shaft and embraces the feed pipe, whereby the stufiing box is adapted to rotate with the hollow shaft and it affords the desired liquid-tight connection between the feed pipe and said hollow shaft.

The shaft 27 extends through its bearing 31 in the frame 11, said extended part of the shaft being provided With a bevel gear 44. With said shaft 27 of the rotatable container cooperates a locking and releasing device, the purpose of which is to lock the container b thereof is opened.

It will be ap reciated that with the cover 14, opened and with the container in the position shown in readily accessible for the purpose of releasing the section b of the container, whereupon said section b can be turned upwardly onthe hinged connection 22. With the vessel and the container in open positions, the operator can secure access tainer for the purpose of placing metal ware therein or removing metal ware therefrom. At such time the container mav have a tendency to turn accidentally and while the operators hands are thrust into the container, thus giving rise to a liability of'cutting or injuring the operators hands by an accidental dropping down of the heavy section b of the container. To preclude this undesirable result I have provided a locking-device for retaining the container against movement when the section 1) thereof is opened. Said locking deviceis in the form of a disk 45 fixed rigidly to the container shaft 27, as shown moreparticularly in Figs. 3 and 5, said disk being provided with a notch 46. A detent 47 cooperates with the notched disk or collar 45, said detent being carried by a curved or bent lever 48 adapted to straddle the shaft 27,, as in Fig. 5, one end of said lever being fulcrumed by a pin 49 on the end frame 11, whereas the other end of the lever is engaged by a spring 50, the latter being vertically positioned, and its lower end being anchored to a lug 51 attached to the end frame 11. The spring pulls the lever downwardly so as to force the detent 47 into the notch of the disk or collar 45, thus locking the container from movement, particularly b thereof is opened, but normally the lever 48 is raised, and retained in a raised position, so as to withdraw the detent 47 from the notch 46, the spring being under tension. The means for disenthe detent from the notched collar of the shaft 27 is a combined lever and slide 52, one end of which is slidably fitted in a slot 54, see Figs. 2, 5 and 6. This post is provided with a 4, the screws 26' are to the interior of the container when free from shank 55 which is loosely fitted in a bearing 56 of the end frame 11, and to the inner end of the shank is screwed a nut 58, which operates to loosely hold the post 54 upon the frame 11, thus allowing the post to turn with the lever 52 and at the same time'the lever can slide within the slot 53 of said post, said sliding movement of the lever being limited by stop lugs 59 which are attached to the lever and are adapted for engagement with the slotted .part of the post 54. The lever 52 is provided near its free end and upon the upper side thereof with a cam 60 with which contacts a roller 61 mounted in the lower. end of a link 62. Said link is vertically positioned and is free to slide in a guide 63 attached to the end frame 11, the upper part of the link being loosely connected with the lever 48. With the lever -52 in the idle position shown in Fig. 5, the cam 60 is moved away from the roller 61 and the spring 50 draws the lever 48 downwardly, thus allowing the detent 47 to enter the notch of the collar 45, locking the container B against rotation, but it is apparent that the lever 52 may be thrust toward the right in Fig. 5 so as to slide through the slot of the post 54, which sliding movement of the lever brings the cam 60 into contact with the roller 61, thus elevating the slide 62 and the free end of the lever 48, the result of which is to withdraw the detent from the notched collar. The lever 52 is retained in locked position for the cam 60 to hold the slide 62 in a raised position, and to this end the lever 52 is provided with a locking shoulder 64, the latter being adapted to enter a notch 63 of a keeper 65, see Fig. 1. Said keeper is attached tothe frame 11 and is provided with a slot 66 in which the lever is free to travel when it is turned, the post 54 constituting the fulcrum ofthe lever.

The means for driving the rotatable conthe restraint of the locking mechanism is illustrated more particularly in Figs. 1, 2 and 3 of the drawings, wherein 67 is ,a bevel gear meshing with a bevel gear 44 on the shaft 27 of said container. Thisbevel gear 67 is attached rigidly to a tubular shaft 68 which is journaled in a bearing of a bracket 69 attached rigidly to the end frame 11, the lower end of said tubular shaft 68 being formed to produce a clutch member 70. A vertical shaft 71 is extended at its upper part within the tubular shaft 68, said vertical shaft being supportedin a step bearing 72 and in the tubular shaft. Said vertical shaft is provided intermediate its ends with a clutch member 73, the latter being splined to the shaft 71 so that the clutch member 73 rotates with the shaft 71 and is free to slide thereon. The clutch member 73 is positioned for interlocking engagement with the clutch member of the tubular shaft, in. order that by said drawings.-

the motion of the shaft 71- may be communicated to the tubular shaft 68, and thus through the intermeshing gears 67, 44 to the shaft 27 of the container B. The sliding clutch member 73 is pressed into engagement with the clutch member by a coiled spring 74, the lower part of which is seated upon a collar 75 secured to shaft 71. The clutch member 73 is provided with an annular groove which is engaged by the fork 76 of a shipper rod 77, one part of which rod is vertically positioned and is slidably fitted in a bearing 78 attached to the end frame 11. The shipper rod is provided intermediate its ends with a slot 79 in which loosely fits the lever52, see Figs. 5 and 6.

"TVhen the lever52 is adjusted in the position of Fig. 5, the cam 60 is withdrawn from the slide 62 and the spring 50 pulls the lever 48 into a position for the detent to enter the notched collar to lock the container from rotation; and at this time the lever 52 fitting in the notch 63 of whereupon said lever 52 is retained in a position to depress the shipper rod 77 in a manner to also depress the clutch member 73 free from engagement with the clutch member 7 O of the tubular shaft 68, so that the lever 52 locks the clutch 73 out of engagement with the tubular shaft 68, as a the fixed keeper 65,

result of which the driving mechanism can-.-

not impart .rotative movement to the container. After the container shall have been closed and the cover adjusted over the vessel A, the operator should move the lever 52 by disengaging the stud 64 from the notch 63, whereupon the lever can slide through the post 54 in order that the cam 60 will act upon the slide 62 and raise the lever 48 to disengage the detent from the notched collar, at which time the lever 52 can be raised to the dotted line position of Fig. 5, the post 54 turning as the fulcrum of the lever, so that the shipper rod 77 will be raised and the sprin 74 will press the clutch member 73 into ocking engagement with the shaft 68, whereupon the rotary motion of shaft 71 is communicated to shaft 68 in a manner to impart rotative movement to the container B.

The lower part of shaft 71. is provided with a worm gear 80 which is in mesh with a worm 81, indicated in dotted lines in Fig. 2, which worm 81 is said countershaft having a worm gear 84 which is in'mesh with a worm 85 on a motor shaft 86, the latter being journaled in a suitable bearing 87, all as shown more clearly in Fig. 2. A motor C is employed to furnish. the power required to drive a single machine of the form disclosed in full in the drawings or of a duplex machine, a part of the second machine only being shown Said motor is preferably is locked in position by the stud 64 on a countershaft 83,

in the form of an electric motor, the arma ture shaft of which is electrically insulatec at 88 from the motor-driven shaft 86, thu: precluding a short circuit of the current but it is apparent that a motor of any suitable form may be employed.

For the purpose of storing the soapy liquid when the metal ware within the container B is undergoing a rinsing operation, I employ a tank D, the same being positioned below vessel A and suitably supported by the end frames 10, 11 of the machines. This storage tank is provided with a cleanout nozzle (1 and with a draw-off nipple (1', said tank D having suitable connections with the liquid-containing vessel A. As shown, the tank D is provided with an upwardly extending pipe 90 attached to a cross connecsoapy liquid through the waste pipe. A further branch of the cross connection 91' is provided with a cleaning cap 95 adapted to be opened so that any balls, rings, or perforated disks constituting the scouring agent may be withdrawn from the cross connection As shown in Fig. 3, a screen 95 is provided in the bottom portion of tank A at the entrance to the cross connection 91, said screen operating primarily to exclude any of the balls, rings or perforated disks constituting the polishing agent from entering the cross connection 91 or flowing through the pipe 90 into the tank, D, ments of the polishing balls or rings escape through the screen 95 and into the cross connection 91, it is apparent that such fragments will drop into the depending branch of the cross connection, whence they may be removed by taking off the cap 95;

It will be understood that]? do not limit myselfto the use of any particular form of balls, rings, or perforated disks to constitute the polishing agent, but it is preferred, to use material of a non-corrosive nature, such as Monel metal, and to employ small rings or perforated disks, for the reason that the openings in the rings or the perforations in the disks allow the comparatively free circulation of the soapy liquid or of the rinsing liquid through the mass constituting the scouring agent. It may be added that v of the rotatable container and be carried upinto smaller spaces but should fragsecuring the desired comparatively large size, a number of which platters are to be operated upon at one and quired heat to the within a hot soapy the same time; With the valve 92 in anopen position, and the valve 94 adjusted to close the waste pipe 93, the soapy liquid will flow from the vessel A into the tank D, within which tank the liquid may be storeduntil it is desired to use said liquid over again in the operation of polishing the silverware. By closing the valve 92 and opening the valve 94, the rinsing liquid supplied to the container B and flowing thence into. vessel A will be discharged through the cross connection 91 and the waste pipe 93.

The soapy liquid supplied to the vessel A should be in a heated condition, so that suitable means are provided for heating the liquid while the container is rotating. To this end a heating coil 96 is positioned within the lower part of the vessel A, see Figs. 3 and 4, said heating coil being connected with branch pipes 97 provided with valves 98, whereby steam or other heating medium may be supplied by one pipe and flow back to the boiler through the other pipe. It is apparent that the coil 96 will impart the reliquid supplied to the vessel A, so that the container B will rotate liquid bath, the liquid being free to flowl through the perforate container and thus obtain easy access to the securing agent present within the container and to the metal ware which is exposed to agent to the action of ing the soapy liquld.

the attrition-of'the scouring agent and to the cleaning effect ofthe heated soapy liquid. After the container rotates a sufiicient length of time inthe bath of soapy liquid, the valve 94 is closed and'valve 92 opened so as to draw ofi the soapy liquid into the tank D, whereupon a hot rinsing liquid is supplied through the pipe 42 and hollow shaft 28 to the interior of the container, thereby subjecting themetal ware and the scouring hot liquid for the pur-' pose of rinsing the metal ware and eliminatv The flow of the rinsing liquid through the pipe 42 is controlled by stop cock'99, see Fig. 1.

It is apparent that some of the balls, rings I or perforated disks constituting the scouring agent may escape into the vessel A, but said balls, ,ri ngs or perforated disks are, to a major extent, excluded from entering the pipe 90 by the screen 95. Thebottom portion of the vessel should be inclined slightly d to a fitting 113 valves 107, 108, respectively, three-way valve 114 verse position toward a depending collecting tube 100, see Figs. 1, 2 and 9. This the vessel near one end thereof, and at the lower end of the tube is attached a fitting 101', the outlet of which is closed by a. valve 102 on a stem 103, said stem being normally lifted by a spring 104, and the upper part of the stem having a push-piece 105. Some pieces of the metal mass constituting the scouring agent will accumulate in the tube 100," the outlet of which is closed by the valve 102, so that at stated times the operator, may depress the thumb-piece 105 and open the 'valve'102, thus permitting the securing agent composed of metal balls, rings or perforated disks to escape into a suitable receptacle placed beneath the fitting 101, after which the balls may be returned to the container B.

The liquid present in turned to the vessel A by the operation of a pump E, shown in Figs. 1, 2 and 10 of the drawings. This pump is operatively connected with two tanks of a duplex machine, one of said tanks being indicated at D and the other at D in Fig. 1. The intake pipe 106 to the pump E is connected to the tanks D, D, said pipe containing two valves 107, 108, each valve having an operating arm 109. The pump outlet 110 communicates with two branch pipes 111, 112 extending upwardly from the pump and connected with vessels A of the duplex machine, said pipe 111 being connected in a suitable way -with vessel A, and the other pipe 112 being adapted for connection with the other vessel (not shown) corresponding to A of the plex machine. The two branches 111, 112 and the pump outlet 110 are attached of a three-way valve 114, shown more particularly in Fig. 10, said valve being provided with an operating lever 115, one end of, said lever being connected by links 116, 117 to the arms 109 of: whereby the is operated simultane ously with the'intake valves'107, 108; thus, when the three-way valve 114 is positioned for the liquid forced by the pump to flow through the pipe 111 into the vessel A, the valve 108 is closed, whereas the valve 107 is opened, thus permitting the pump to draw liquid from .the tank D and to force liquid from the pipe 111 into the vessel A. A movement of the lever 115 to the rewill throw the three-way valve 114 so as to open the pump outlet to the pipe 112, closethe valve 107, and open the valve 108, whereby the pump will draw liquid from the tank D and force the liquid from the pipe 112 into the other vessel (not shown) corresponding to A of the duplex a clutch shown in tube is attached to the tank D is re- Fig. 2, one member 118 of which is attached to said shaft 86, whereas the other member 119 is on the pump shaft 6. The member 119 is splined to the pump shaft 80 that it may be shifted into and out of engagement with the clutch member 118 on the motor driven shaft 86. Coiiperatin with the clutch member 119 is a bell-crank lever 120 under the control of a rod 121 having a spring 122 said rod being pivoted to a treadle 123. The spring retains the clutch member 119 free from engagement with the clutch member 118 so that it is necessary for the operator to depress the treadle 123 when the pump E is to be driven from the motor shaft 86, but upon removing foot pressure from the treadle the spring automatically disengages the clutch. The capacity of the pump E is such that the soapy liquid is forced into one vessel or the other very quickly so that the pump need remain-in operation a comparatively short time only.

The operation of the motor is in a way controlled by lever 115. This lever is pro-, vided with an electrical contact 124 to which is attached one conductor 125 of an electric circuit which includes the motor C. On the,

pipes 111, 112 are other contacts 126, 127 to which are attached the conductors 128, 129 of the motor circuit. With the lever 115, adjusted to a position midway between the contacts 126, 127, the motor circuit is interrupted and no current can flow therethrough, but when the lever is adjusted to the position of Figs. 1 and 10, the motor circuit. is closed by the contact 124 having electrical engagement with the contact 127, thus permitting the motor to drive the pump which .D and force it into vessel A. With the lever 1'15 adjusted to a reverse position, the contact '124 makes electrical engagement with contact 126 so as to again close the motor circuit, but the reversal of the lever shifts the three-way valve 114 so that the pump draws liquid from tank D and forces the liquid through the pipe 112 into the vessel (not shown) corresponding to vessel A of the duplex machine.

It is thought that the operation and ad vantages of this invention will be readily understood by those skilled in the art from the foregoing description taken in connection with the drawings. Furthermore, it is apparent that parts of my invention may be used without the whole.

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

1. An apparatus for polishing metal ware embodying a vessel, a foraminous container positioned therein, a storage. tank connected with the vessel, a feed pump the inlet of which is connected with the tank and the operates to draw the liquid from tank outlet with the vessel, means for driving said locking-and releasing means so as to free the container and at the same time controlling the clutch so as to permit the con tainer driving member to impart rotative movement to the container.

- 2. Ina machine of the class described, the combination with a rotatable drum and a supporting shaft therefor, of means for locking the shaft and the drum from rotative" movement, driving means for imparting rotative movement to the shaft and the drum, a lever mounted for slidable and rota- .tive movement, said lever being provided with a cam adapted on the slidable movement thereof to actuate said locking means, and meansoperable by the rotative movement of the lever for controlling the driv' ing means.

3. In a machine of the class described, the combination with a rotatable drum, and a supporting shaft therefore-of a collar fast with said shaft, a lever cooperating with said collar for locking the shaft and the drum from rotative mOV ement, a retractor for moving the lever-into locking relation to the collar, a manually operable lever mounted for slidable and rotative movement, said last named lever being provided with a cam adapted on the slidable movement of said lever to shift said first-named lever from locking relation to the collar, a clutchcontrolled driving member for imparting rotative movement to the shaft and the drum, and means operated by the rotative movement of the manually operable lever for moving said clutch-controlled driving member into an out-of-service position when the first named lever assumes a locking relation to said collar.

4. Ina machine of the class combination with a rotatable drum and a described, the i supporting shaft therefor, of locking means cooperating with said shaft, a manually operable lever mounted for slidable and rotative movement, said lever being provided with a cam adapted .on the slidable movement of the lever tocontrol said locking means, a driving shaft geared to said drum with said drum andpositioned loning pockets extending lengthwise of the drum and perforated or the circulation of liquid into and from said drum, and perforated slats attached to the drum and positioned next to the feed conduits and the collecting pockets.

6. In a machine of the class described, a rotatable drum adapted to carry a mass of polishing material composed of relatively small pieces, liquid conduits extending lengthwise of the drum for feeding liquid to the interior thereof, perforated slats attached to the drum next to said conduits and provided with means for excluding the pieces of polishing material from said conduits, a plurality of collecting pockets unitary with said drum, said pockets being perforated for the free circulation of liquid through the walls thereof, and other perforated slats over the collecting pockets.

7. In'a machine of the class described, a vessel provided with guideways, a cover member hinged to said vessel, and a second cover memberslidably connected to the first cover member and positioned'for engagement with the guideways of said vessel when moved into a closed relation thereto, com bined with a container drum having a hinged part adapted to be opened upwardly into the space left in the top of the'vessel upon opening the two named cover members.

8. In a machine of the class described, the combination with a plurality of collecting tanks, a pump, and a motor for driving said means connecting said intake valves andthe' three-way valve, and means actuated by the valve operating means for interrupting the motor circuit.

9. An apparatus for cleaning and polishing metalware embodying a vessel, a collecting tank connected therewith, a feed pump the inlet, of which is attached to the tank, and the outlet of which is connected to the vessel, a rotatable drum positioned within the vessel and adapted to contain a mass of polishing material through which liquid is free to circulate, said drum having perforations and an axial liquid inlet, and feeding means for feeding a rinsing liquid. to the drum through the axial inlet thereof, said pump operating to circulate a washing liquid through the vessel and the drum, and said feeding means operating independently of the pump for supplying a rinsing liquid interiorly of the drum.

In testimony whereof I have hereunto signed my name.

ANTHONY PERON.

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