US1032768A - Can-filling apparatus. - Google Patents

Description

W. J. PHELPS. CAN FILLING APPARATUS.

APPLICATION FILED AUG. 13, 1910. Patented July 16, 1912.

3 SHEETS-SHEET l.

W A i I Y H A \w wi m m u N o J F. MW m fi- 7% M/ m w T a m Gi l" W. J. PHELPS.

CAN FILLING APPARATUS.

APPLICATION TILED AUG.13,1910' 1 ,O32,768. Patented July 16, 1912.

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A INVENTOR WITNES ATTORN EY W. J. PHELPS.

CAN FILLING APPARATUS.

APPLICATION FILED AUG.13,1910.

Patented July 16, 1912.

3 SHEETSSHEET 3.

WITNESSES ATTORNEY PATENT oFFioE.

WALTER J. PHELPS, OF BALTIMORE, MARYLAND, ASSIGNOR 0F ONE-HALF T0 FRANK GEBBIE, OF ROCHESTER, NEW YORK. I

CAN-FILLING APPARATUS.

Specification of Letters Patent.

Application filed August is. 1910. Serial No. 577,120.

To all whom it may concern! Be it known that I, WVALTER J. PHELPS, a citizen of the United States, residing in Baltimore and State of Maryland, have invented a new and useful Can Filling Appae ratus, of which the following is a specification. v

This invention has reference to improvements in can filling apparatus, and is designed to provide a means for filling cans with liquids through a small opening in one end of the can, these openings being subsequently sealed. The small opening referred to is in t-heinature of a perforation, usually in the center of the head of the can, which perforation is to be distinguished from the large filling openings usually employed, which openings are afterward closed by a suitable cap soldered in place.

In the present invention a second perforation is employed near the periphery of the head of the can in which the first named perforation is formed, and by means of ap-' paratus forming the subject matter of the present invention the liquidfis caused to flow into the can through the central perforation by the force of gravity augmented by atmospheric pressure caused by Withdraw-- ing the air from within the can through the eccentric perforation which is provided for this purpose, the air being withdrawn by a suction apparatus producing sub atmospheric pressure within the can.

The inlet" perforation, which for convenience may be called the central perforation, although. it is .not necessary that this perforat'ioinshould be exactly in the center of the can head, is purposely of circumscribed area, and the mouth of the conduit through which the liquid is directed to the central perforation of the can head is made of-sutficiently larger area so that the end of. the conduitniay he brought into air tight relation to the head of the can in surrounding relation to the filling perforation.- Where gravity alone isutilized for causing the flow of liquid into the can, there remains, at the completion of the filling operation, a globule of the liquid on the surface .of the can about the filling perforation, which liquid Wlll not gravitate through the-perforation, and when the conduit is removed such llquld spreads outv on the head of the can about This also is the case where the attempt is made to fill the can through a small perforation by gravity aided by "super-atmospheric pressure, the displaced air in the can escap ng. through the second perforation.

The formation of a globule of the fluid in :t 'oduoed into the can at the filling perforation is very objectionable because of the necessity of removing this globule of liquid before the perforation may be sealed, and also because of the waste material.

By the present invention the cans are not only expeditiously filled but when the filling is completed there is produced a condition whereby there is caused an inrush of air at the filling perforation which will draw into the can the final globule of material which otherwise would remain on the surface of the can and spread about the filling perforation. Such perforation is therefore left in a sufficiently clean condition to permit of sealing by the usual drop of solder, the

other perforation being also sealed at the same time.

The invention will be best understood tailed description, taken in connection with the accompanying drawings forming a part of this specification, with the understanding, however, that while the structure illustrated is well adapted, to the purposes of the invention, such structure is susceptible of various modifications which retain the salient features of the invention.

In the,drawings:Figure l is an elevation of one side of the machine. Fig. 2 is an elevation of one end of the machine at right angles to the showing of Fig. 1. Fig. 3 is a vertical section through the machine taken in a plane substantially median to the showing of Fig. 2, and, also, showing some parts broken away.- Fig. 4 is a section through one of the measuring cups and the means carried thereby for causing the introduction of the filling liquid into a can, the latter being shown in section and in operative relation to the other structure. Fig. 5 .is a view similar to Fig. 4, but showing a different phase of the operation of the structure. Fig. 6 is'a't'op plan new of the machine. Fig. 7 is a plan view of the can carrier with a tray of cans therein, adjacent parts being shown; in cross section. vFig. 8 is a bottom plan view of the can engaging Patented July 1 6, 1912;

means at the lower end of each measuring cup. Fig. 9 is a cross sectionthrough the framework immediately above a guiding brace connecting the legs of the machine.

Referring to the drawings there is shown a frame comprising legs 1 which may be,

upper ends of the legs 1, as indicated at 5.-

In the particular structure of the drawings, the trough 3 is a rectangular structure of comparatively shallow depth with surrounding side walls 6," and-this trough extends beyond one pair of legs 1, and is there formed with a depending portion 7 constituting a reservoir for the liquid to be ultimately filled into cans, this reservoir receiving the liquid from a supply pipe 8 having in it avalve 9, whereby the inflow of liquid to the reservoir 7 may be controlled at will;

The machine is designed especially for the filling of evaporated milk of commerce into cans, and inthe following description the liquid will be designated as milk, with the understanding, however, that other liquids may be used, whether of the same or thicker or thinner consistency than the evaporated milk employed.

The floor of the trough 6 is formed with numerous passages 10 therethrough, these passages being customarily circular and.

provided with marginal flanges 11. The

passages 10 are designed to receive the ends of elongated cups 12, each of a capacity to hold a suflicient quantity of milk to fill a can-of predetermined size to the desired extent, the cans being usually filled to with in one-eighth inch or. three-sixteenths inch ofj-the inner wall of the top or head of the can. The flange 11 formed about each passage 10 in the bottom of the trough 3 forms an upstandingwall around the upper edge of the corresponding cup 12, which latter is made to fit tightly in the opening 10, so that no leakage'may occur between the cup and the'flange, and no lodgment may be provided for any material directed into the to each other.

trough 3. The lower ends of the cups 12 are contracted, as indicated at 13, and at any convenient point the several cups may pass through suitable perforations in a plate 14 suspended by the cups and serving to position their lower ends with relation Each cup is, continued beyond the contracted end 13- in the form of a neck 15 substantially cylindrical in shape with a terminal outstanding flange 16: at the lower end, and with anaxial nipple 1 7 project-ing beyond the plane of the lower'end'oftheneck 15. The neck 15 has an internal bore which is substantially cylindrical for aportion of its length below the contracted end 13, and then this bore is gradually contracted into a valve seat 18 merging intothe bore of the nipple 17.

Where the neck 15 joins the contracted end 13 of the cup 12, thereis formed a shoulder 19, and between this shoulder and a the flange 16 the outer wall of the neck is cylindrical. Surrounding the neck 15 is a collar 20 of less length than the neck, and this collar is provided at one end with a radially disposed flange or plate 21 of an extent which may be somewhat less than. the diameter of the cans to be employed, these cans being shown at 22. The collar 20 is of less length than the cylindrical portion of the neck 15, andbetween the shoulder 19 and the corresponding end 'of the collar 20, the neck 15 is surroundedby a spring 23 having'a normal tendency to maintain the collar 20 against the flange 16, but yielding to a superior force tending to move the collar or'sleeve 20 toward the shoulder 19 and away from the'flange '16. Formed on the face of the flange or plate 21 remote from the collar 20'is an axially directed flange 24 of greater diameter than the radial extent of the flange 16, so that there is an annular space left between the inner wall of the flange 24 and the periphery of the flange 16, and through the .plate 21 "coincident with this space is a circular series of perforations 25. p

Applied to the nipple 17 is a cylindrical gasket 26, preferably of soft vulcanized rubber, and appliedto the face of the plate 21 from which projects the flange-24, and exterior to and concentric with said flange,

annular channel 28 formedv therein, the

channel 28 being concentric to the longitudinal axis of the neck 15 and cup 12. The gasket 27 may be secured to the'plate 21 in any suitable manner, screws 29 being..indicated in the particular structure shown in the drawings, but it will be understood of course, that any other suitablemeans for the purpose may be employed.

The plate 21 is formed with a nipple .30 in position to have its bore which extends through the plate 21 opening through apassage 32 in the gasket 27, so that the nipple 30 is in constant communication with the channel '28. To the nipple 30-there is applied a-flexible tube 33 which may be of rubber composition. It will he observed that the under edge of the gasket 26 stops short'of the under edge of the gasket 27 so that a plane surface engaged by the gasket 27 will not at the same time be engagedfby the gasket 26, and the gasket 27 which is preferably made of soft vulcanized rubber,

must yield or be compressed before the 1 o bolt 43 threaded on ,oneend for gasket 26 can be brought into engagement with the same plane surface.

Eachv can 22 has one head 34 provided with a perforation at, or substantially at the center of the head, and another-perfo-' ration 36 near the periphery of the head, these two perforations being so located that when the can engaging member made up of the two gaskets 26 and 27 and the parts carrying thensame are brought into engage.

ment with the head 34, the gasket 26 will surround the perforation 35 and the channel 28 will be brought against the head 34 in communicating relation with the perforation 36. The perforations 35 and 36' may be quitesmall and may be formed at the same time with the head 34, these perforations being caused by simply punching through the metal of the head at the appropriate points without removing any of the metal of the head.

gConfined within the space defined by the legs 1 is a carrier 37 having marginal walls 38 around three sides, andextending for a a short distance-on the fourth side, while this carrier is provided with a cut away portion 39 adapted to receive and guide a tray 40 having marginal walls 41, the tray being of a size to receive a number ofjcans 22 cor- ,responding to the number of cups 12, so

thatwhen the tray 40 is in position on the carrier '37, the latter may be moved until all the cans 22 are brought into engagement with the gaskets 26 and 27, the parts'being related to permit this action.

The angle form ,Of the legs 1' admits of a guiding function of, these legs for the carrier 37 ,which may be fitted at the corners sufliciently-close to move smoothly up and down betweenthe legs 1 without-any material side 'motion( The carrier 37 has secured thereto-on opposite sides brackets 42,

of an eye' 'eachperforated for the passage the reception of a wing nut 44, and at the eye end se-' cured to one end of a spring 45, the other end of which'js secured to vthe angle bar 2 connecting a respective pair of legs 1. 'The s rings are suficiently strong to upholdt 'e carrier 37 with a load of cans 22 there-.

on when'filled with milk,-with the head of each can so firmly seated against-the gaskets 26 and 27 that these gaskets are in air tight relation to the outer surface of the head of the can Secured to the under side of the carrier are arms 46'converging: to a bar 47 capable of longitudinal movement inla guide-- .48 formed by oppositely directed conifer g braces 49, and connecting straps 50.,for t ese braces,the arrangement being such that-the eye formed by the adjacent portions of these parts is of square contour and the bar 47 is 1 of like contour. The braces 49 at their terminal ends are secured, to respective legs 1 the action of the springs 45.

in a manner to stiffen the legs, so that any I tendency of these legs to separate or draw together is obviated.

Made fast to the support for the legs 1, this support usually being the floor of the room in which the machine is located, are brackets 51, adjacent two of the legs 1, which, legs, because of the position of the operator with relation to the machine, may bev termed the rear legs. Pivoted to each bracket 51 is a-bar 52,, and these bars extend beyond the front legs of the machine and are there connected by a strip 53 designed toreceive the foot of the operator, so that the two bars 52 and strip 53 constitute a treadle, a brace rod 54 connecting the bars 52 at an intermediate point .to stiffen the structure. Each bar 52 is connected by a link 55 to an eye 56 fast on the under side of the carrier 37 at an appropriate point. tendencyofthe springs '45 to lift the carrier 37 also causes an up-l'ifting of the treadle, so that the foot member 53 is normally in the elevated position, When it is desired to lower the carrier 37, the operator presses upon the foot member 53 of the treae vdle, and so lowers the carrier against the The normal tendency of the springs 45, the legs 1 and eye 48 serving to guide'the" capri e; and pre vent it deviating from the'pro er path. It is desirable in the operation 0 the machine that the treadle with the parts controlled thereby should be locked in the depressed position, and for this purpose there is =mounted on one of the legs 1 a pawl 57,con-

provided with a lug 59 in the path of which we pin 60 on the leg 1 carrying the pawl,

so that the movement of the pawl-under the action of the spring 58 is limited by the engagement of the lug 59 with the pin 60. Under normal conditions with the treadle in the raised osition, the free end of the pawl.57 is in t e path'of one of the bars 52, butthe pawl will yield to the downward movement of the bar 52 until the pawl has been passed, and then the spring 58 will cause the pawl to sna over the bar 52, so that when pressure 0 the foot member 53 of the treadle is released, the bar'52 will be engaged bythepawl 57, and be thereby held in the lowered position against the action of strained in one. direction by a spring 58 and the springs.45.' When itis desired to ele- 'vate the carrier 37, the operator may with the foot move the pawl 57 out of the path of the bar 52 and by releasing the pressure of the footonthe treadle allow the treadle and the parts controlled thereby to rise under East to the legs 1 by brackets 61 or other tubes 33 connected to these pipes. The pipe 62'on' one side of the machine is connected to the pipe 6 2 on the other side ofthe ma chine by a branch pipe 63, and the first named pipe 62 may be continued to an air 'pump or other suitable means for exhausting air from these pipes. In theafirst named pipe .62 on the side of the branch pipe 63 toward .the exhausting means, there is included a valve 64to the stem of which is made fast an arm 65 connected by a link 66 to the treadle member 53, the arrangement being such that when-the treadle is in the uppermost position the'valve 64: is open,

so that the pipes 62 are in communication with the-exhausting means but' when the treadle is depressed the valve 64is closed.

Erected on the side walls of the trough 3 are standards 67 to each of which there is ,pivoted an arm 68, connected by a strap 69 to an appropriate part of the carrier 37, this strap being fixedly connected to the carrier 37 and pivotally connected to'the arm 68. The ends of the arms 68 remote from the standards 67 are pivoted to opposite sides.

sired extent from the reservoir 7 and when the carrier is lowered, the plunger 70 par-,

ticipates in this movement and enters correspondingly into the reservoir 7, displacing the milk therein to a commensurate extent. This causes a rising'of the level of the milk within the reservoir 7 until it is above the floor of the trough 3, and therefore flows over the floor or bottom of the trough, the

parts being so proportioned that the milk willrise above'the top of the cups 12 and flow into them until they are all filled. As

soon as the carrier 37 rises, the plunger rises with it, .andthat part of the milk not already lodged in the cups 12 will flow back into the reservoir 7, the cups remaining brimful.

Extending formed at the lower end into a valve 74, shown in the particular disclosure of the drawings as a globular. valve, and this valve is adapted to the seat18. Each rod 73 is continued above the top of the trough 3 and terminates in'a ball 7 5 designed to impart weight to the valve stem or rod 73 and valve 74, and this ball 75 may, therefore,- be replaced any other shapedstructure acting V as a weight.

Extending along the'top of the trough 3 is a bar 76 having one end formed with an angular extension 77 riveted or otherwise made fast tothe end wall of the trough 3,

through each cup is a rod 73 while at the other end the bar 76 is made fast to' a cross bar 78 in any appropriate manner, this bar being supported at its ends on the sidewalls of the trough 3. The bar 76 is formed on its upper edge with pairs of ears 79, each carrying one end ofa lever 80 through which corresponding valve rods 73 extend, each lever 80 controlling two valve rods 73 in the particular disclosure of the drawings, and since the lever, because of its pivotal support, moves through an arc," the two valve vrods controlled by a lever are connected by a cross piece 81, so as to move together. The-levers 80 are arranged in two series projecting oppositely from the center line of the trough, and the free ends of each series of levers are engaged by a rod 82 having ends 83 at an angle to the central portion of the rod, these ends 83 passing through eyes in guiding brackets 84: on ap propriate portions of the flanges 4 and continued to the carrier 37, being made fast to appropriate portions of the side walls of the carrier, so that the rods 82\will participate in the up and down movements of the carrier 37.

Let .it be assumed that an appropriate supply of milk is lodged within the reservoir 7, and that this supply is replenished from time to time by an appropriate operation of the valve 9, admitting suitable quantities of milk to the-reservoir 7 froma larger source of supply, not shown in the drawing, the valve 9 being readily accessible to an operator in position to control the treadle by the treadle member 53. Let it also be assumed that an air exhausting means is connected to the pipes 62 and is in "operation. If the treadle be in the lowermost po sition, being there locked by the pawl 57, V

the carrier 37 is also in the lowered position and the rods 82 have likewise been lowered and the weight of the several valves 74 with their'stems 73 and weighted ends 75 has caused the closing of all the valves '74 in the respective seats 18. Simultaneously the lowering of the plunger 70 has caused the'filling of all the cups 12 in the manner already described, the contents of these cups being maintained therein by the, valves 74 I now in the closed. position. Furthermore the springs 23 have caused all the collars 18 and plates21 to assume the lowermost position with the lower edge of the gaskets 27 below the lower edges'of the gaskets 26. A I

tray 40 full of cans 22 isplaced on the carrier 37, being positioned by the cutaway portion 39. 0f the carrier. The operator now releases the treadle and permits the cartops of the'cans engage the gaskets 27, and

rier; to move'upwardlyuntil ultimately the the continued'upward movement of the carrier causes a compression of these gaskets as well as of the spring 23 until ultimately the '1 gaskets" 28 are-(brought into engagement cient for the degree of sub-atmospheric pres sure employed. The. rising of the carrier 37 causes the elevation of theplunger 70 and the removal of thesurplus milk from .the trough 3 and also the opening of the valves 74 by the engagement of the rods 83 with the several levers 80, thus lifting the valves .74, from the seats 18. The rising of the treadlealso causes the opening of the valve 64 and this results in the production of sub-atmospheric pressure in the pipes 62, thus exhausting the, air from the tubes 33 and the channels 28'of the gaskets 27.. Air pressure on the surface of themilk in the cups 12 causes aflow of the milk through the nipples 16 into the interior of the gas 'kets 26 and so through the perforations 35 surrounded by these gaskets into the interior of the cans, the air within the cans ex hausting through the perforations 36 into the channels 28 and through the tubes 33 to the pipes, 62, and from the latter to the air exhausting means. This operation continues until the milk within the cups 12 has passed into the respective cans, the cups be ing so proportioned that when all ofzthe contents have passed into the cans the latter will be filled to the desired level. The completion of the filling of the cans is made evident to the operator by the noise produced by thepassage of air into the cans through the lower ends of the cups and the perforations .3..;and, the operator may then depress the "treadle-and cause the cans to move 'away'ifro'm the can engaging devices at the lower ends of the cups. As the car- 'rier 37 drops, the gaskets 27 follow-the cans for a distance determined by the length of the necks 15, each gasket 27 being arrested by engagement of its plate 21 with the respective flange 16 of the lower end of the neck15. The gasket 27, however, is incapable of such following up movement,-

and. as soon as the movement of the can 22 away from the gasket is greater than the ex tension of, the gasket from compressed position to its normal position, the can leaves the gasket 26 a short period of time before the can is drawn s ay from the gasket 27. Because of the sub-atmospher c pressureiwithin the can .at this time, there 1s 11 quick inrush of air through the perform tions 25 between the gasket 26 and the head ofthe can, the parts-being so timed in op eration that the'valve 74'hasclosed beforethe ean'has moved away from the gasket 26.

'I'lhis results'in an inr'ush of .airtowardthe perforation 35 in the form of a thin Sheet beneath the gasket 26 and between 'thesame and the hea 34 of the can,'this iii-rushing drawing of any milk on the can about thefilm of air sweeping before it all accumu lations of milk lodged on the surface of the head of the can within the area circum-' scribed by the gasket 26, and preventing any outward spread of this accumulation 01'' '35 all the milk which fin s lodgment on. top

of the can about the perforation 35, so that when the air pump is shut ofi from the pipes 62 and atmospheric pressure is'ag'ain restored within the can, thetop of the can is free from any milk about the perforation 35, and this milk heretofore wasted is not only saved, but the can is in condition to have the perforations 35, .36 stopped with solder in the usual manner without the necessity of a preliminary cleaning to remove deposits of milk thereon. As soon as the treadle has been again depressed, the tray of cans now filled with milk may. be removed and another tray full of empty cans may be placed upon t-hecarrier ready for a repetition of the operation just described. 95

Should the operator be too precipitate in the lowerin of the carrier, the in-rush of air designe to carry the last trace of milk into the can through the perforation 35 may I. proveat times to be of too short duration '100 for the purpose. To avoid such contingencies there is provided on the carrier an indicator- 85' and a companion index mark 86 on one .of the legs 1,-the indicator'and index markin being in position to be readily visi- 105 ble to t e operator, and so positioned that when the indicator 85 is brought into coincidence with the index marking 86, in the downward movementof the carrier, the gasket- 26 will have separated from the head 34 of the respective can, while the gasket 27 still in -o erative' engagement therewith. By a sliglit pause of the parts in this position, ample time is. given for the inperforation 35, and then the operator -con-- tinues the downward movement of the carrier to the final position. g V I While the converging walls-of the interior of'the neck ,15 will g'ulde the corresponding 11 valve 751; to its seat 18,- said valve may be positively l;-a spider 87 made fast to thejvalve 3 so as to slide but always remain in the; interior cylindrical portion of the neck' l.'

It will be observed that the exhausting gasket is annular-so that it is immaterial how the cans are placed in the tray carryin them, since the exhaust. perforation 36 wi always be covered bythe gasket 27, and the 1 adapted for introducing liquids into cans.

and effects a great-saving in both 'labor and material because the only Subsequent opera= tion is the sealing of two small perforations in the top of the can, this being" done with great facility by a skilled operator with the; expenditure of far less solder than-is neces, sary for the sealing of a can by means ofa cap of considerable area on the head of the can, and, furthermore, a very material saving is brought about by avoiding the waste of material as has heretofore been the case in the attempt-to fillcans through a small perforation, and the labor incident to cleaning the Waste material from the top of the can before the soldering of. the perforation.

If itbe desirable to utilize the machine for filling smaller cans than those for which the machine is initially adapted, this may 7 be readily accomplished by using measuring cups of smaller capacity, orthe capacity of the cups may be reduced without the neces' sityof replacing those already on the machine. The degree-0f sub-atmospheric pressure which maybe produced within the cans will depend upon .the capability of the cans to Withstand the excess of external atmosphere pressure-and the inflow of liquid will be the more rapid the greater the difference between the external atmospheric pressure and the subatmospheric pressure within the can. Usually the degree of exhaustion of the air may be-such as to cause the filling of the cans in the case of milk in o-nehalf (or'less) time than though gravity alone were utilized, the operation of the machine being thereby accelerated with correspondi ng saving-in time and labor.

.What is claimed is 1 p 1. In an apparatus for filling cans with, liquid, means for conducting the liquid to the can, means for causing within the can sub-atmospheric pressure to force the liquid into the can, and means for causing the maintenance of sub-atmospheric pressure in the can subsequent tothe separation of the can and the firstnamed means.

2-. In an apparatus for filling cans 'with liquid through small perforations in said cans comprismg means for producing subatmospheric pres'sure within the can to be filled, means for carrying a suitable'quantit of the liquid into the can through the filling pe'rforation'therein, and means for causing the withdrawal from the can of theliquid conducting means rior to the re-.

' establishment of atmospheric pressure with- .in the can.

3. In an apparatus for fillingcans,aholder for a liquid to be introduced into a can, said holder being provided with means engagemeansbeing adapted for the exhaustion of air fromthe can.

4. In an apparatus for filling cans, a

holder for liquid to be filled into a can, any

engaging means carried'by said holder for directingaliqu-id therefrom to the can and anotherv engaging means carried by the holder and adapted for exhausting air from the can, said last named means being in yielding relation to the liquid container.

'70 I'elat101Tt0-S11Cl'1 can end, said last named -5. In an apparatus for filling cans, a can engaging memberpr-ovided with air seals onemovable relative to and adapted to remain in engagement with a can for a longer time period than the other.

. 6. In an apparatus for filling canshaving a central perforation and another perfora tion eccentric thereto, a conduit adapted to the central perforation, and an annular con-. duit surrounding the first named conduit and adapted to communicate with the ec;

centrically located perforation.

7. In an apparatus for fillingcansmaving each a central perforation and another peroration eccentric thereto, a can engaging member having a central conduit and another conduit concentric therewith, the con duits being adapted to the respective central and ,eccentric perforations in the can, the concentric conduit having a range of move ment with relation to the centrally locatedconduit.

8. In an apparatus for filling cans, a liquid container provided at its discharge end with means for forming an air seal with a can, and othermeans for forming an air seal wlththe can, sa d last named air seal.

being adapted to engage the can prior to the engagement with the can of the first named air sealing means and to maintain engagement with the can after the first named air sealing means has left the can.

9. In an apparatus for filling cans with liquid, a measuring cup having one end 'formed into a neck, means at the discharge end of the .neck for forming an airseal with a can," and another air sealing means carried by and movable along the neck.

10. In an apparatus for filling cans, a measuring cup provided at the discharge end with a neck, a gasket carriedby the discharge end of the neck'and adapted to enga e a can in air tight relation thereto, an annu ar gasket surrounding the first named gasket and adapted to engage a,.can in air sealing relation thereto, and a carrier for the last named gasket" movable longitudi nally of the neck. v

11. In an apparatus. for/filling cans, a

' for establishing air tight relation to a can measuring cup provided at the discharge end with a neck, a gasket carried by the discharge end of the neck and adapted to engage a can in air tight relation thereto, an' annular gasket surrounding the first named provided with means for establishing air tight relation to a can, another conduit carried by the head and provided with means said second named conduit having a range of'movement with'relation to the first named conduit, and means for admitting air between the can and the first named conduit while the second named conduit is in air tight relation to the can.

13. In an apparatus for filling cans, a filler head provided with a central gasket constituting a means for establishing an tight relation to the can to be filled, and a movable member carrying an annular gasketsurrounding the first named gasket and constituting means for establishing air tight relation with the can to be filled, the second named. gasket normally projecting to a greater extent than the. first named gasket and yieldably. constrained to such position. 14; In an apparatus for filling cans, a

filler head provided with a central gasket constituting a means for establishing air tight relation to the' can to be filled, and a movable member carrying an annular gasket surrounding the first named gasket and constituting means for establishing air tight re lation with the can to be filled, the second named gasket normally projecting to a greater extent than the first named gasket and yieldably constrained to such position, the filler head being also provided with means. for the admission of air to the space between the two gaskets.

15. In an apparatus for filling cans, a

r measuring cup provided at its discharge end "with an elongated neck, a gasket at the discharge end of the neck for establishing air tightrelation with the can to be filled, a collar mounted on the neck and having a limited movement axially thereof, said collar be- .ing provided with-a radial flange, an annular gasket carried by the collar'in concentric relation to the first named gasket, said nnnw,

lar gasket being. provided with an annular channel and adapted to make air tight connectionwith the can to be filled,..the two gaskets-being spaced apart, the space between the gaskets "being open to the atmossphere through the fiahge, and theoute r gasgreater extent than the first named gasket, and a spring surrounding the neck and tending to maintain the flanged collar with the gasket carried thereby beyond the discharge end of the neck. 4

16. In an apparatus for filling cans, a

measuring cup provided atits discharge end" with an elongated neck, a gasket at the discharge end of the neck for establishing air tight relation with the can to be filled, a collar mounted on the neck and havinga limited movement axially thereof, said collar being provided with a radial flange, an annular gasket carried by the collar in concentric relation to the first named gasket, said annu-- lar gasket being provided with an annular channel and adapted to make air tight connection with the can to be filled, the two gaskets being spaced apart, the space between the gaskets being open to the at mosphere through the flange and the outer gasket having its engaging end projecting to a greater extent than the fir tnamed gasket, a spring surrounding the neck and tending to maintain the flanged collar with the gasket carried thereby beyond the discharge end of the neck, and means for clos' ing the discharge end of the cup interior to the first named gasket.

17. In a machine forfilling cans with liquid, a measuring cup, a taperedbottom terminating in an elongated neck formed at one end with a valve seat, a gasket carried by the outer end of the neck beyond the .valve, a flanged collar carried by the neck, a

ring shaped gasket provided with an annular channel and carried by the flange of the neck in concentric relation to the first named gasket, a conduit communicating with the 1 channel in the second gasket for. permitting the exhaustion of air therethrough, and a spring on the neck tending to maintain the collar with the gasket carried-thereby to ward the discharge end of the-neck,

18. In a machine for filling cans with liquid, a measuring cup having the, dis-' charge end contracted and fformedin'to; an elongated neck wit-h a valve seat adjacent to the discharge end thereof, a gasket at the discharge end of the neck adapted to-form an air tight connection with the can to be,

filled, a collar carried by the neck and having a limited longitudinal movement thereon, said collar being provided with a radial flange With passages therethrough adjacent the neck, a ring-shaped gasket carried by the flange in concentric V relation to the first named gasket and provided with an annular channel, a conduit leading to the interior of the channel in the second gasket, a spring on the neck tending to maintain the collar with the parts carried thereby towardthe discharge end of. the neck, and avalve adapted to the valve seat in the neck.

ikethaving its engaging end projecting to a 19. in a machine for filling cans, a measuring'cup having one end contracted into an ,elongated neck having a shoulder at one end and a flange at the other, and a discharge opening with anipple, continued therefrom, a gasket carried by the nipple, a

flange exterior to the cylindrical flange and provided with a circularchannel, said gasket in normal position projecting to a greater extent beyond the discharge end of the neck than the first named gasket, an air duct leading to the channel in the second gasket, and a spring on the neck between the collar and the shoulder of said neck and tending normally to maintain the collar against the flange at the end or" the neck. o I

20. In a machine for filling cans, a measuring cup having one end contracted into an r elongatedneck having a shoulder at one end.

, and a flange at the other, and a-discharge opening with a nipple continued therefrom, a. gasket carried by the nipple, a collar on the neck between the shoulder and. flange and capable of moving along said neck, said.

collar beingjprovided at one end with a radial flange having a cylindrical flange projecting therefrom and perforated be'- tween the neck and the cylindrical flange, an annular gasket carriedby'theradial flange exterior to the cylindrical flange and pro- .vided' with a circular channel, said gasket in normal position projecting to a greater extent beyond the discharge end of the neck.- than the first named gasket, an air duct leading to the channel in the second gasket,

a'spring on the neck between the collar and theshoulder on said neck and tending-normallyto maintain the collar against the flange at the end of the'neck, and a valve {in the neck near the discharge end thereof.

'21. In a ma-chine for filling cans, a measuring cup-having one end contracted into an elongated neck having a shoulder at one end and a flange at the other, and a discharge a opening with a nipple continued therefrom,

a-gasket carried by the nipple, 'a collar on the neck between the shoulder and flange and capable of moving along said neck) said collar being provided. at one with a fradial flange having a cylindrical flange projecting therefrom and perforated betweejmthe neck and the cylindrical flange, an aii-nular gasket carried by the radial flange exterior to the cylindrical flange and provided with a circular channel, said gasket in normal position projecting to a.

greater extent beyond the discharge end of the neck than the first named gasket, an air esa-res duct leading to the channel in the second gasket, a spring on the neck between the collar and the shoulder of said neck and tending normally to maintain the collar againstthe flange at the endof the neck,'and a valve in the neck near the discharge end thereof, said neck having its interior contracted to form a'seat for the valve.

22. In an apparatus for filling cans with liquid, each provided with an inlet opening for-the liquid and an outlet opening for the air, a series of measuring cups for the liquid, means at the discharge end of each cupfor forming an air tight seal about the inlet to the can and an air tight sealabout the out let of the can, the second'named seal having arange of movement and timed in movement to engage the can before the first named seal and to remain in engagement with the can after the second named seal is separated therefrom, a valve for each cup, an air exhaust conduit communicating with the air sealing means for the air outlet of the can, a carrier for/the cans movable to bring the cans nto and out of operative relation with'- the airseals, and operating means for the valves controlled by the carrier and timed in movement to open the .,Valves each comprising a valve stem,with a i valve at one end, said valve stem extendingbeyond the filling ends of'the cups, a series of levers engaging the valves to move them to thevopen position against the action of gravity, a carrier for cans for conveying the latter into and out of operative relation-to the discharge ends of the cups, and a bar common to a series of levers controljng the cup valves and connected to the carrier for movement therewith.

24. In an apparatus for filling cans with liquid, a series of measuring cups, gravity valves each comprising a valve stem with avalve at one end, said valve stem extending beyond the filling ends of the cups, a series oflevers engaging the valves to move them to the open position against the'action of gravity, a carrier for the cans for conveying the latter into'and out of operative relation to the discharge ends of the cups, and a bar common to a series of levers controlling the cup valves and connected to the carrier for movement therewith, the operating bar for the levers engaging the latter during the terminal movement of the carrier tbward active relatidn tdthe cups.

Q 25; -In a mach'ne for filling cans, containersfor the material to be placed in the cans, asupport for the containers, a carrier for cans movable in said support, thesupport having corner members of angle material connecting members extending to separated points on the carrier.

26; In an apparatus for'filling cans each provided with a liquid inlet and an air outlet perforation, a series of pendently arranged measuring cups, a trough carrying the cups and into which the upper ends of the cups extend above the floor of the trough, a reservoir for the liquid in depressed relation. to ,the floor of the trough, a displacement member movable into said reservoir, filler heads, one for the discharge endof each cup and provided with separated air seals one connected to the interior of the cup, means for the exhaustion of air through the other seal, the sealing means forthe exhaust side of the 'filler head having a range of movement holding it in engagement with the can in overlapping timed relation to the engagement of the filling side of the filler, a valve for each cup, a carrier forthe cans to be filled having a normal tendency toward the filler heads, operating means. for the valves controlled by the carrier, 0 crating" means for the displacement mem er also controlled by the. carrier, and operating means for the carrier under the control of an operator for'moving the carrier in opposition to its normal tendency.

27. Inan apparatus for filling cans each provided with a liquid inlet and an air outlet perforation, a series of pendent-1y arranged measuring cups, a trough ,carrying the cups and into which the upper ends of the cups extend above the floor'of the trough," a reservoir for the liquid in depressed relation to the floor of the trough, 'a displace- 'ment member movable into said reservoir, filler heads, one for the discharge end of each cup and providedwith separated air seals one connected to the interior of the cup, means for the exhaustion of air through the other seal, the sealing means for the exhaust side of the filler head .havinga range of movement holding it in engagement with thecan in overlapping timed relation to the engagement of/the filling side of the filler, a valve for each 'cup, a carrier for the cans to be filled having anormal tendency toward the valve heads, operating means for the valves controlled by the carrier, operating means for the displacement -membe-r also controlled by the carrier, operating means for the carr1er-under the control of an op- I erator for moving the, carrier in opposition to its normal tendency, and ELH-llldlCfltOI' for showing the position'of the carrier where the air seal about the inlet opening of the can has broken, while the air-seal on the exhaust side of the canis still maintained.

In testimony that I claim the foregoing. as

my own, Ihave'hereto aflixed my signature in the presence of two witnesses.

WALTER: J. PHELPS.

Witnesses:

JoHN H. SIGGERS,

LEWIS EBERLY.

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