US1047455A

US1047455A - Settling-machine.

Info

Publication number: US1047455A
Application number: US67608512A
Authority: US
Inventors: Charles D Scott
Original assignee: Individual
Current assignee: Individual
Priority date: 1912-02-07
Filing date: 1912-02-07
Publication date: 1912-12-17
Anticipated expiration: 1929-12-17

Description

G. D. SCOTT.

SETTLING MACHINE.

APPLICATION rum) FEB. 7, 1912.

5 SHEETS-SHEET l.

' Invemw O. D. SCOTT.

SETTLING MACHINE.

APPLICATION FILED 19212.7, 1912.

Patented. Dec. 17,1912.

5 SHEETS-SHEET 2.

Invelor O. D. SCOTT.

SETTLING MACHINE.

APPLICATION FILED Palm, 1912.

1,04%455, Patented Dec. 17, 1912. Y 6 SHEBTSSHEET 3.

12} I ulaagulbi'mlllfiiiiili away/11mm.

7i 9 gm 9 I F i g], Fi 877 WiIness I en'tor C. D. SCOTT.

SETTLING' MACHINE.

APPLICATION IILED FEB. 7, 1912.

Patented Dec. 17, 1912.

5 SHEETSSHEET 5 citizen of the United States, residing at UN D STATES PATENT oFFic E8 SCOTT, 0F TOPEK A, KANSAS, ASSIGNOR TO PERCY E. GINN, OF WINCHESTER, MASSACHUSETTS.

SETTLING-MACHINE.

Specification of Letters Patent. Patehted Dec, 1'3", 11912.

Application filed. February 7, 1912. Serial No. 676,085.

To all whom it may concern."

Be itknown .that I, CHARLES ill-Soon, a

Topeka, in the county of Shawnee and State of Kansas,.have invented certaln new and useful Improvements in Settling-Machines,

I of which the following is a specification.

ditty invention relates to machines for filling cans and other receptacles wlth commod ities which must be shaken down therein in order that the can may be properly filled substantially to the top before being covered and sealed. It is especially adapted for use in connection with automatic weighing machines which deliver to each can a predetermined weight of commodity, which quantity when first so delivered more than fills the can, but which is just enough to fill the can when shaken down. Baking powder, cocoa, spices, etc, are instances of such commodities.

It is the object of my invention to improve generally upon such machines; to provide a machine that is .small, and compact, and etlicient, and also that is simple in construction and operation; to provide a machine of this nature so constructed that the various parts are interchangeable and adaptedto be used for cans and receptacles of various shapes and sizes; also to provide the various parts, improvements, and combinations hereinafter set'forth and claimed. My invention comprises chiefly a central standard, a frame rotatab'ly supported thereon, a series of can supports secured to the frame, a series of tappers adapted to tap and vibrate the supports with means for operating thetappers, a series of filling tubes adapted to hold the tops of the cans, a feeding tube, means for locking the rotary frame with each filling tube in register, in turn, with the feeding tube, and means for shifting the frame with its can supports and filling tubes into register with the feeding tube. And it also consists of the parts, improvements, and combinations hereinafter set forth and claimed.

In the drawings accompanying and forming part of this specification, and in thede scription of the drawing, I have shown my invention in its referred form and what I deem to be the best mode of applying the principles thereof, but it is to be understood that, within the scope of the appended claims, I contemplate, changes in form, proport-ions, and materials, the transposition of parts, and the substitution of equivalent members, without departing from the spirit of my invention. 1

Figure 1 is an elevation view of a machine made in accordance with the principles of my invention. Fig. 2 is a sectional planview on the line 2 in Figs. 1 and 9. Fig. 3 is a sectionalplan on the line 8 in Figs. 1 and 9. Fig. 4 1s a view of a special can support. viewed as indicated by the arrow t in Fig. 3. Fig. 5 is a top view. Figs. 6 and 7 are enlarged details of certain partsof the upper structure on the lines Sand 7, respectively, in Fig. 5. Fig.8 is a section on the line 8 in Fig. 1' showing howtheoperating handle is pivoted to the central standard.

Fig. 9 is a. vertical central sectional elevation of certain parts of the frame, with some:

taken approximately on the line 11 in Fig.

5. Fig-12- is a transverse section of the same parts taken on the line 12 in Fig. 11;

and Fig. 12 is an enlargement of the sameparts. Fig. 13 is a sectional elevationon the line 13 in Figs. 5 and 14; and Fig. 1.4 is an enlarged transverse section on the line 14 in Fig. 13. Fig. 15 is an enlarged sectional elevation of the lower art of the filling tube. Fig. 16 is an enlarge sectional elevation of the feeding tube, on the line 16 in Fig. 5. Fig. 17 is a sectional elevation, approximately on the line 17 in Fig. 2 of one of the tappers and its support. I

Similar reference characters indicate like or corresponding parts throughout the several views. I

18 is a central'standard supported on: a base 19 with braces 21. comprising a lower plate 22v and an upper A tapper frame ring 23 connected by brackets 24, is supported on the central standard by means of a set screw 26 in the collar 25 which is pref.- erably integralwith the t-apper. frame.v On

the ring are a series of pairs of lugs 27, in

which are pivoted the tapper arms 28, each 31'whose outer end bears against an adjacent lug thereby holding it firmly in place and yet being readily removable by pressing the'outer end upward and then withdrawing the pin, to remove the tapper. The tapper arms do not extend radially from the central standard, but tangentially from a series of inclined lugs 33 on the upper face of a pulley wheel 34 mounted in a horizontal plane on the central standard or shaft. A sleeve on the upper side of the lower plate has its upper face inclined, as shown at 35, and between this inclined face and a washer 36 is a bifurcated wedge 37 engaged by the inner threaded end of a rod 38 whose outer end is formed as a crank 39.

40 is a collar secured to the rod and working between the two

lugs

41, 41, which are slotted, as shown at 42, to receive the rod and to permit vertical motion thereof. By turning the rod one way or the other, the wedge may be withdrawn or driven in farther, to lower or raise the pulley wheel and inclined lugs, to give a longer or shorter stroke to the tapper arms, whose heads are impelled downwardly by theaction of the inclined lugs upon rotation of the wheel,

and upwardly by the force of the springs 44 extending between the tapper arms and the hooks 45 in the lower plate.

43 is a buffer ring to take up the jar and wear of the inner ends of the tapper arms. The upper face of the pulley wheel and the'inclined lugs may also be covered with raw-hide, or may be left bare.

A drum-shaped frame comprising a bottom 50, a top 51, and side slats 52 is rotatably mounted on the central shaft or standard, having a bearing block 54 on the under side of the top which bears on the collar 55 secured to the standard by means of a set-screw 56. Secured to the upper face of the drum bottom is a two-piece, or split, collar, one piece 57 being rigid with the bottom, and the other, 58, being pivoted thereto at 59 and formed with a shoulder 60 against which bears a spring latch 61 pivoted at 62.

63 is an opening through the bottom adjacent and under the pivoted part 58 adapted to permit a lateral movement of the drum when the pivoted part is turned back, this being merely for the purpose of convenience in removing the drum from the standard by tilting it to one side. One of the slats is omitted, as shown at 53, in order to give access to the collars, set-screw, and bearings.

Around the lower part of the drum are arranged a series of vertically disposed pairs of headed pins or screws 64, each pair being capable of supporting a can support 65 by means of holes 67 and slots 68 in its vertical shank 66. Thereby each can support is readily applied to or removed from the drum. At the open space 53, there is a short shank 69 (see Fig. 4) with two holes and slots side by side and adapted to engage similarly located screws. These can supports are located over the tappers which are adapted to strike against their under, sides which are reinforced with leather strips 70 to take up the wear and slightly soften the blow. The can supports are made of sheet metal, strong enough to support the cans, but resilient enough to vibrate when struck by the tappers.

On the top of the drum is secured a circular plate 75, just outside of which is a circular row of headed pins or screws 76, and arranged in a still larger circle is a row of taller pins 77, these pins and screws being in vertical planes in the center lines of the respective can supports. 78, 78 represent a series of plates, laid flat on the drum and extending .radially from the pins 76, respectively, each plate having a notch 79 to engage the pin 76 under its head, and a slot 80 to engage the pin 77, this slot being slightly. elongated outwardly so that the plate may have an upward movement at its outer end while its inner end is stationary, this being forthe purpose of placing the plate in place and for removing it, and also for the purpose of permitting a partial raising of the outer end during the opera- .tion of the machine, as will be more fully explained hereinafter.

81 is an extension spring secured at one end to the plate and at the other to a slat of the drum for the. purpose of holding the plate down on the drum, lateral movement of the late on the drum being prevented by the c ose fit of the

pins

76 and 77.

82 is an opening in the plate over the can support, and under the opening is a filling tube 83, preferably funnel shaped and having its bottom formed to fit inside the top of the can to be filled, as shown at 84.

85 is a flange extendingdownwardly from slightly above the bottom, and in the space between the bottom and the flange is inserted a packing of felt or other suitable yielding material 87, which may be held in place by means of lugs 88 cut and bent inwardly from the flange.

I To put a can in place, the filling tube is lifted by means of the plate, as described, the can is placed on the can support, and

the filling tube let down with its bottom 84.

inside the can and the felt pressing down on its upper edge, thus holding the can firmly in place, and yet allowin vibration thereof by the tappers, the shoot of the vibration being absorbed, however, by the felt and the spring 81, so that very little, if any, of the shock of the vibration is imparted to the frame.

In filling the cans and filling tubes with a commodity of predetermined weight, it will at first come up'quite far in the filling tube,

but it cannot run out between the tube and the can by reason of the close fit of the felt upon the top edge of the can. Under the influence of the tappers, however, the commodity is shaken and settled down until it is all in the can, and then the can may be removed by lifting the plate 7 8. To place the cans, fill them, settle the commodity n them, and then remove them, requires time for each can; especially is considerable time required for the settling. And to keep a number of cans in the machine at the same time under vibration, with suitable means for inserting them, filling, and withdrawing them, in rotation, I have constructed my machine on the rotary plan described; the mechanism hereinafter described being chiefly the means whereby the drumis locked in place while each can is being filled, in rotation, and being inserted and withdrawn, means whereby the rotation is accomplished in step-by-step manner, and means whereby the lock and the feeding tube are controlled.

90 is a lever provided with a handle 91 at its outer end and pivoted at its inner end at 93 in such a way as to have vertical movement to a 'collar 92 which is loosely mounted on the central standard thereby permitting horizontal movement of the lever.

94 is a hook secured to the lever and adapted to engage the side and bottom of the filling tube plate, so that when the lever is down and is pushed to the left it will rotate the drum and attached parts and when the lever is lifted with the hook under the plate it will raise the plate to a position incheated by the line 78 in Fig. 11. The horizontal movement of the lever is limited to the distance between centers of adjacent filling tube plates by the stop 96 mounted on an arm 97 which is secured rigidly to the central standard and does not turn with the drum, the manner of securing being hereinafter explained.

95, 95 represent a series of lugs secured to the circular top plate, there being one lug corresponding with each filling tube, and they are so arranged that at each rotary step the lever engages behind one of them to aid in rotating the drum; and in its backward movement, the lever is lifted clear of the lug and dropped down behind again.

98 is a-horizontal bar rigidly secured to the top of the central standard in a mortise 99' and by means of a screw 99.

100 is a rather long fiat spring secured at one end to one end of the bar, as by a bolt 101, its other end being turneddown, 102, against the plate of the filling tube, and having a loop 103 to clear the head of the bolt 99.

104 is a pin secured to the sprin and extending down through the bar an through a bracket 107 secured to the under side of the bar and into any one of a series of holes 105 in the circular plate, these holes. corresponding in number and in spacing with the can supports and filling tubes, and the pin being held normally in such hole by a compression spring 106. When the filling tube plate under the spring 100 is lifted to posit on shown by the dotted outline 78 1n Fig. 11, the spring 100 is lifted to the position shown by dotted outline in the same figure, thereby lifting the locking pin 104 out of its hole, leaving the drum free to be rotated.

108 is a latch pivoted between the bracket 107 and another bracket 109, and adapted when the spring 100 is lifted to engage its under side as indicated in dotted outline in Fig. 12, falling into the recess 110 by reason of the pull of the spring 112 which is secured at one end tothe latch and at the other to a bracket 111 secured to the bar.

113, 113 are a series of tripping lugs arranged in a circular rowso as to pass in rotation under the latch so as to trip the latch and throw its upper end out from underv the spring 100, letting the spring come to normal position with the pin 104 in the next hole. The lever 90, being in position shown in dotted outline in Fig. 5, is lifted, which brings pin 104 out of its hole and the latch 109 under the spring 100.

The lever is then returned to position shown in full outline, andthen moved one step to the left upon engaging behind the next filling tube plate and lug 95, thus rotating the drum one step, and upon this rotation, the lug 113 trips the latch 108, permitting the locking pin to fall, or be forced into, the next hole 105, thereby locking the drum in that position,--one step advanced.

115 is a stop limiting the upward movement of the spring 100.

114 is a collar rigidly secured to the central standard. 116 is a lever pivoted at its inner end to said collar so as to have vertical motion but no horizontal mot-ion, and having its outer end formed with two

arms

117, 117, which are slotted, 118, to receive the respective arms 119 extending out from opposite sides of the feeding tube whose lower end is fitted with a. felt ring 120 to make a close fit against the filling tube plate and around the top of the filling tube, as will be presently explained.

122 is a spring, one end of which bears down against the lever 116 and the other end of which is secured to a bar 123 rigidly secured to the bar 98 and thereby made rigid with the central standard. The purpose of this spring is to press the felt lower end of the feeding tube down firmly against the filling tube plate so that none of the commodity passing from the hopper 121 may escape.

- of each lug being beveled, 95', so that as the drum is rotated theroller will ride up on top of the lug, thereby lifting the feeding tube clear of the plates, and at the end of each step, again dropping the feeding tube down onto the next plate under influence of the spring 122,, thus keeping the plates from brushing under the lower end of the feeding tube.

The feeding tube is of specialtelescopic form. The inner tube 126 comes down from the hopper. Outside of this is a larger tube 127 which has free vertical movement with relation to the upper and inner tube, which may be stationary. The layer of felt is wrapped around the lower tube and extends below the lower end thereof. 128 is a band,'with'a tightening screw 129 "for holding the felt on the tube.

130 is a flexible covering tube, of cloth or other suitable material, the lower end of which is secured under the ring and the upper end of which may be secured to the upper tube, as by a cord 131. This construction allows the necessary vertical movement 'of the lower end of the feeding tube, as just described, and yet it forms a perfectly tight and dust-proof connection between the hopper and the filling tubes.

Preferably the commodity is delivered into or through the hopper from an automatic weighing machine, adjusted to deliver thereinto or therethrough a given weight of the commodity, the weight adapted for the cans to be filled.

140 is the top of a bench, shelf, or table adjacent to the machine. While I have shown it as slightly above the can supports, yet in actual practice, it will be approximately level with them, being the bench or table onto which the filled cans are removed from the can supports.

141 and 142 are standards set upon the table, to the upper ends of which are pivoted the bar 146; but preferably a link 143 intervenes between standard 142 and the bar so that the bar may be adjusted as to height by means of the slot 145 and bolt 144. The forward end of the bar is curved around into the path of the filling tube plates and is there curved upwardlyand then downwardly, as shown at 147, so that, as the drum is rotated, the filling tubes are raised, one at a time, in rotation, the purpose of raising them at this point being to remove the cans after the commodity has been properly settled therein.

The manner of rigidly securing the

parts

18, 97 98, and 123 rigidly together, is shown in Figs. 6 and 7, in connection with Figs. 1 and 5; it being understood that while the drum is adapted to revolve about the stand- The pulley wheel is driven constantly by a belt or other suitable'means, causing a constant operation of the tappers. Lever 90, being in position 91', is lifted, and a can placed under the filling tube. thereunder.

The lever is brought to the-right and then back to the left, progressing the'drum one -step; and this operation is continued until three cans have been placed in succession. Then; the commodity is delivered into the filling tube and can from the feeding tube. Then the fourth can is laced, which brings the first can over the rst tapper. This is continued until thirteen cans have been placed, eleven of them being filled, and brings the first can under the plate and filling tube which have been lifted by the curved lifting bar 147, from which the first can is removed. When the can is at first filled, the commodity extends far up in the filling tube; and in passing over the tappers, it will be shaken and settled so that by the time it reaches the liftin bar, all the commod ity has been settled 1n the can. From this time on, it is simply a matter of inserting the cans, operating the lever, delivering the commodity, and removing the cans.

While I have shown sixteen filling tubes and can supports, and ten tappers, it will be understood that this number may be increased or diminished. I show the relative number' of ten tappers with sixteen filling tubes,.for the reason that a machine so arranged gives ample space for the operators to work in; although, indeed, the bar 147 might be eliminated, the number of tappers increased, and the cans inserted and removed at the same point. The set-screw 26 enables one to set the tapper frame with the tappers in proper register with the normal position of the can supports, and also in suitable vertical relation thereto. The wedge 37 enables the operator-to adjust the stroke'so as to get a harder or lighter blow. The pins 31 make it an easy matter to re move an unnecessary tapper or to put in a new one. The manner of attaching the filling tubes and their supporting plates make it an easy matter to adapt the machine for difierent sizes and shapes of cans, as a set may be replaced by another set very easily, and the same is true of the can supports; thus giving the machine as a whole a wide range of usefulness as to various sizes and shapes of cans. Also by shifting the lifting bar 147, or by eliminating it, the cans may be subjected to a long or short duration'of tapping; thus gaging the maximum can delivered into the respective cans as feeding tube.

What I claim is:

1. The combination of a frame having a vertical standard, a tapper frame mounted on the frame a horizontally-disposed pulley wheel rotatably mounted on the sha and havin a series of lugs on its upper face arrange in a circle concentric wlt the standard, a series of tappers pivoted on the tapper frame and engaged by said lugs, a spring for moving each tapper 111- oppos1t 1on to the movement caused by the lugs, said tappers comprising levers with heads and extending tangentially from the circle of lugs; a supporting frame rotatably mounted on the standard above the tapper frame, a series of removable vibratory can supports mounted on said supporting frame above the tapper heads so as to be struck by said heads and arranged in a circle concentric with the standard; a series of removable filling tubes mounted on the supporting frame above the series of can supports, each filling tube having its .lower end formed with an annular channel that is open at the bottom, a filling of soft yielding material in said channel; a telescopic feeding tube having a soft yielding lower end adapted to bear against the upper end of a filling tube,

' a lever mounted on the frame for lifting said lower end and a spring for PIGSSlHg SBJd end against the filling tube; a locking device for locking the supporting frame as each filling tube is brought under the feeding tube and a latch for holding the looking device open, a lever for rotatin the supporting frame and bringing the lling tubes one at a time under the feeding tube and for opening the locking device; and automatic devices controlled-by the supporting frame for lifting the lower end 0 the feeding tube and for releasing said latch.

2. The combination of a frame having a vertical standard; a tapper frame mounted on the standard, a series of supporting frame mounted on the standard above the tapper frame, a series of can supports removably secured to the supporting frame above the tappers so as to be vibrated by the tappers, a series of filling tubes mounted on the supporting frame above the can supports, each filling tube being adapted to engage the top of a can on its respective can support; a feeding tube, a lock for the supporting frame with means for holding the lock open, a means for actuating the supporting frame so as to bring the filling tubes one at a time into communication with the feeding tube, means for lifting the filling tubes for the insertion and withdrawal of the cans; and means controlled by the rotary movement of the supthe feeding tube.

tappers and actuating mechanism therefor; a rotatable for lifting thefeeding tube porting frame the lock and for dropping and for closing 3. The combmation of a .frame having a vertical standard; a rotary supporting frame mounted on the standard, a series of can supports mounted on the supporting frame,

a series of filling tubes removably mounted onthe frame one above each can support, means for imparting vibratory motion to said can supports, means for separating each can support and its fillin tube for the insertion and withdrawal 0 the cans, a feeding tube, means for rotating the supporting frame to bring the filling tubes one at a time into communication with the feeding tube, and a locking device for holding the supporting frame in position as each filling tu is brought into communication with the feeding tube.

4. The combination of a frame, a horizontally rotatable can supporting frame mounted on the first-named frame, means for vibrating cans on the supporting frame, a series of filling tubes mounted on the supporting frame and adapted to hold and communicate with the tops of the res ective cans on the supportin frame, a eeding tube, means for rotating the supporting frame to bring the filling tubes in rotation into communication with the feeding tube,

and means for locking the supporting frame in position as each filling tube is brought into communication with the feedin tube.

5. In a machine of the kind described, the combination of a vertical standard, a horizontally rotatable can sup-porting frame mounted on the standard; a tapper supporting frame comprising a lower plate, an

upper ring and brackets extending between said plate and said ring, said lower plate being formed with central upwardly and downwardly extending sleeves and the upper face of the upper sleeve being inclined; a set screw in the lower sleeve for securing the tapper supporting frame on the standard; a bifurcated wedge embracing the standard above the inclined face with a screw for'moving the wedge over the face; a pulley wheel mounted on the standard above the wedge so as to be raised and lowered by the movement of the wedge, the upper face of the pulley wheel being formed with a series of inclined lugs arranged in a circle around'the standard; a series of tappers, each comprising a lever and a head and pivoted to said ring and extending tangentially from the circle of lugs and adapted to be moved in one direction by said lugs and to strike against the can supports, and a series of springs, one for each lever for moving it in opposition to the movement caused by the lugs.

6. In a machine of the kind described, the combination of a standard, a tapper frame mounted thereon, a pulley wheel mounted on the standard and supported by the tapper frame and having a series of tapper operating lugs on its upper face, a series of tapper levers pivoted on the frame so as to have vertical movement and arranged tangentially wit-h relation to the circleof lugs, and a series of springs, one for each lever for moving it in opposition to the movement caused by the lugs.

7. In a machine of the kind described, the combination of a tapper frame, a series of tapper levers pivoted in said frame, a spring for actuating each lever in one direction, and a series of devices arranged in a circle to operate the levers in opposition to said springs, and said levers extending tangentially from said circle of devices.

8. In a machine of the kind described, the combination of a vertical standard, a tapper frame mounted thereon, a series of tappers mounted on said frame, springs for moving the tappers in one direction, a rotary device for operating the tappers in opposite direc-' tion, a wedge between said device and the frame forv regulating the throw of the tappers by said devices, and a means for adjusting said wedge.

In a machine of the kind described, the combination of a horizontally rotatable frame and a series of resilient can supports removably secured to said frame.

10. In a machine of the kind described, the combination of a horizontally rotatable frame having a series of headed pins projecting radially therefrom, and a series of can supports having holes to pass over said heads and communicating slots to engage the stems of the pins under the heads.

11. In a machine of the kind described, the combination of a horizontally rotatable frame, a series of can supports secured thereto, and a series of filling tubes detachably mounted on the frame, one above each can support and having its lower end formed with an annular channel that is open at the bottom and adapted to engage with the rim at the top of a can upon the support, a filling of soft yielding material in said channel, and a spring tending to force said filling tube andfilling against the said rim.

12. In a machine of the kind described, the combination of a frame, a can support mounted thereon, a filling tube removably mounted on the frame above the support in suchmanner as to have vertical movement and having its lower end formed with a channel that is open at the bottom, a filling of soft yielding material in said channel, and a spring tending to force the filling tube toward the said support.

13. In a machine of the'kind described, a filling tube having its lower end formed with an annular channel that is open at the bottom and having inwardly and upwardly the combination of projecting lugs in the outer side of the channel and a filling of soft yieldingmaterial held in said channel by said lugs.

14. In a machine of-the kind described, the combination of a frame having a headed pin and an elongated pin in its upper face, a plate having a notch at its inner edge to engage the stem of said headed pin under its head, having a slot to engage the elongated pin, and having an opening, a filling tube secured to the plate under said a spring for holding the plate in position on said pins.

15. In a machine of the kind described, the combination of a rotary can supporting frame, a series of filling tubes mounted in said frame, a feeding tube having its lower end of soft yielding material, means for bringing the filling tubes one at a time under the feeding tube, a spring tending to force the lower end of said feeding tube against the top of the filling tube, and means for lifting the feeding tube clear of the filling tubes during rotation of the frame.

16. In a machine of the kind described, the combination of a rotary can supportin frame, a series of filling tubes mounte thereon; a feedin tube comprising a stationary upper sectlon and a vertically movable lower section having a lower edge of soft yielding material, avdust-proof flexible tube covering the gap between the two sections, means for rotating the frame to bring the filling tubes one at a time under the feeding tube, and automatic means controlled by the rotation of the frame for bringing said lower end into engagement with and freeing it from contact Wlth the filling tubes.

17. In a machine of the kind described, the combination of astationary upper tube and a. vertically movable lower tube telescoping together, a felt covering for the lower tube extending below its lower end, an adjustable ring embracing said felt to hold it on its tube, and a cloth tube secured to and extending between the lower and upper tubes.

18. In a machine of the kind described, the combination of a stationary upper tube, a vertically movable lower tube, and a flexible dust-proof tube secured to and extending between the first-named two tubes.

19. In a machine of the kind described, a rotary can supporting frame, a series of filling tubes secured thereon, a flexible vertically movable dust-proof feeding tube having a soft yielding lower end to engage the filling tubes, means for bringing the filling tubes one at a time into communication wlth the feeding tube,- a lever on which said feeding tube is mounted said lever having vertical movementonly,

a roller secured to said lever, a series of lugs opening, and

on the frame engaged by the roller for lifting the feeding tube clear of the filling tu e 5 during rotation of the frame,

and a spring for forcing said feeding tube against the filling tubes.

20. In a machine of the kind described,

the combination of a rotary can supportlng frame, a series thereon, a feeding tube, the frame to bring the of filling tubes mounted a time into communication with the feeding tube, a locking pin engaging said frame to lock it in each of its positions, a spring means for rotating filling tubes one at forcing said pin into locking engagement with said frame, a latch for holding the 1% locking pin in open position, and a series of devices cooperating with the frame for tripping the latchto permit the spring to force the pin into its locking position.

In testimony whereof I have aflixed my 20 signature in presence of two witnesses.

CHARLES D. SCOTT. Witnesses:

ELLA SITES, J. D. WOLF.