US2352490A

US2352490A - Measuring and filling machine

Info

Publication number: US2352490A
Application number: US470202A
Authority: US
Inventors: Carl G Meyers
Original assignee: Allbright Nell Co
Current assignee: Allbright Nell Co
Priority date: 1942-12-26
Filing date: 1942-12-26
Publication date: 1944-06-27
Anticipated expiration: 1961-06-27

Description

June 27, 1944. c. G. MEYERS 2,352,490

MEASURING AND FILLING MACHINE Filed Dec. 26, 1942 5 Sheet-Sheet 1 June 27, 1944. Q 2,352,490

- MEASURING AND'FiLLING MACHINE Filed Dec. 26, 1942 s Sheets-Sheet 2 MZZZZ c. G. 'MEYERS 2,352,490

MEASURING AND FILLING MACHINE June 27, 1944.

Filed Dec. 26, 1942 a Sheets-Sheet 5 C Garza Jyers Patented June 27, 1944 UNITED STATES PATENT' OFFICE. -;;2,s5 2,49,0'

MEASURING AND FILLING MACHINE Carl G. Meyers, Chicago, Ill.-, assignor to The Allbright-Nell Company, Chicago, 111., a corporation of Illinois 7 Application December 26, 1942, Serial No. 470,202

- 7 Claims. (01. 222 .250)

"The present inventionrelates generally to machines for filling containers with 'measured charges or amounts of liquid material, such as congealable lard, vegetable oil shortening and the like. More particularly the invention relates to that type of combined measuring and filling machine which is designed for use with, and to form a part of, an automatic container handling apparatus, and comprises as the main partsv a pair of laterally or elements thereof-(1) spaced depending nozzles over the container supporting part of the handling apparatus; (2) a cylinder having one end thereof connected by a duct to one of the nozzles and its other end connected by a second duct to the other nozzle; (3) a passage to which the material to be measured is supplied under pressure; (4) a two-position valve mechanism in associated relation with the ducts and the passage and adapted when in one position to close the nozzle end of the first mentioned duct and effect communication between the passage and the cylinder endof the first mentioned duct and also to open the second duct, and further adapted when in its other'position to close the nozzle end of the second duct and effect communicationbetween the passage and the cylinder end of the second duct and to open said first mentioned duct; (5) a floating piston mounted in the cylinder to slide back and forth between the ends thereof and adapted when the valve mechanism is in its said one position to be displaced or shifted by the material entering the one end of the cylinder via the cylinder'end'o f said first mentioned duct and to forcethe mate rial in the other end of thecylinder'throughthe second duct to and through its nozzle, and further'aclapted when the valve is in'its said other position to be oppositely or reversely shifted by the material entering said other end of the cylinder via the inlet end of the second duct and to cause the material between it and said one end of the cylinder to flow through said first mentioned duct to and through its nozzle; and (6) mechanism for automatically shifting the valve mechanism at the end of each stroke of the floating piston.

The primary object of the invention is'to provide a measuring and filling machine which i'san' improvement upon, and has certain advantages over, that which is disclosed in, and forms the subject matter of,UnitedStates Letters Patent No. 1,464,676, granted on August 14;-1923, to B. S.

Harrington, and in addition is simpler in design and more efiicientand positive :in operation.

Another object of the invention is to'provide'fili form of valve mechanism and also novel and simple, mechanism for actuating the valve mechanism at the end'of each stroke of the floating piston inthe cylinder. I

A further object of the invention is to provide a measuring and filling machine which is generally of new and improved construction, efiectively and e'fiicientl'y performsits intended function, and is capable of being produced at a com: paratively low cost. I y V Other objects of the invention and the various advantages and characteristics of the present measuring and filling machinewill be apparent from aconsideration of the following detailed description. g

The invention'consists in the several novel fea tureswhich are'hereinafter set forth and are more particularly defined 'by claims at the conclusion hereof.

In the drawings which accompany and forma part of this specification or disclosure and in which like numerals of reference denote 'corre vsponding partsthroughout the several views? f Figure l'is ajfr'ont elevation of a measuring and filling machine embodying the invention;

Figure 2 isa side view of the machine; Figure 3 is a vertical section'taken on the line -33 of Figure 1 and illustrating in detail the conand the two struction and design of the cylinder position valve mechanism; I

Figure 4 is a horizontal section taken on the line4-4 ofFigure2;'and I r Figure 5 is a section of the D'-valve'forming a' part of the mechanism for automatically shifting the valve mechanism'at the end of each stroke of the floating piston.

The machine which is shown in the drawings: constitutes thepreferred'form or embodiment of the invention. It is designed for'use with any suitable automatic container handling apparatus, such, for example, as that illustrated herein.

Such apparatus comprises a horizontally elongated table type frame 1 having at the top thereofv .a longitudinally extending horizontal endless belt (not shown)". The upperreachof the belt is suitablysupported on the frame 1 and serves to example, as congealable shortening. It is associated withthe frame-landcomprises a pair'of laterally spaced, depending nozzle 9 and lover the upper reach of the endless conveyor of the container handling apparatus, a cylinder H and a unitary two-position valve mechanism I2. The nozzles 9 and H] are adapted, as hereinafter described, alternately to discharge the material in measured quantities into the containers therebeneath. The container handling apparatus is adapted to feed the containers in such manner that there is an empty container undereach noz-' zle in connection with discharge of the material therethrough. For a disclosure of a container handling apparatus with which the improved measuring and filling machine maybe employed reference may be had to United States patent application Serial No. 471,860, filed'January 9', 1943.

a horizontally extending member l3 which is positioned above and behind the endless belt of the container handling apparatus. The nozzle carrying member|3 is supported by way of a I vertically extending member [4 which is suitably mounted. on the frame .1. The upper end of the member I4 is connected to the central portion of formed in the member M. The upper end of this passage is connected by a pipe l9 to receive the liquid material under pressure from any suitable:

source. The lower end. of the passage |8 leads to and through-the flat face |5- at the lower end of the member; l4 and is disposed between the lower ends of the ducts l6 and I1. I

The cylinder H is supported on the frame 1 beneath the vertically extending member 14. It

The nozzles 9 and ID are carried at the ends of lessens the size of the space between the false head and the fixed head 22. Reverse rotation of the screw 24 causes the false head to move toward the fixed head 2| and results in an increase in the size or volume of said space. The upper portion of the side wall 20 of the cylinder II is provided with a flat horizontal face 21 and embodies a pair of

ports

23 and 29. The port 28 is so arranged that one end thereof leads to and through'the face 21 and its other end communicates with the interior of the cylinder at a point A "slightly inwards of the fixed head 2| (see Figure 7 3). The other port is so arranged that one end thereof leads to and through the face 21 and its other end communicates with the interior of the cylinder at a point directly adjacent the fixed head 22. The false head 23 is provided in the upper portion thereof with an angular notch 33 false head 23.

is a floating'piston 3|. This piston is adapted, as hereinafter described, to slide back and forth in the cylinder between the fixed head 22 and the When the floating piston slides to the left, as viewed in Figure 3, the liquid material between it and the fixed head 22 is caused to flow through the port 29 and the duct [1 to and through the nozzle l0. Reverse sliding movement on the part of the piston results in the liquid ma- 'caused alternately .to flow through the nozzles 3 is disposed in a horizontal position and comprises a substantially cylindrical side wall 20 and a pair of fixed circular heads 2| and 22. Thehead 2| is bolted or otherwise fixedly secured to the right hand end of the cylindrical side wall 20, asviewed in Figures 3 and 4, and the head 22 is suitably attached to the left hand end of the cylinder side wall 20 and serves as a closure therefor. In addition to the side wall and fixed heads the cylinder 7 comprises a false head 23 and this? is slidably mounted in the end of the cylinder to which the head 2| is applied. By sliding the false headi23 to and from the head 2| the volume of the space between the false head and the head 22 may be varied and the amounts of the. charges of ma terial thus regulated. Sliding movement of the false head 23 to and from the head 2| is effected by means of a-screw 24- which extends through a threaded hole 25 in the central. portion of the head 2|. The inner end of thegscrew is suitably connected to the outer end of the false head 23 so that it is held against axial displacement relatively to the false; head while at the same time When the screw 24 is turned in one direction the false head 23' is shifted away? i terial between it and the false head 23 being forced through the. port28 and the duct IE .to and through the nozzle 9. V y

The valve mechanism the fiat face 15 at the lower end of the member l4 and the fiat face 21 on the upper portion of the s de wall 20 of the cylinder L It serves as an automatic controlling medium whereby the charges of liquid material under pressure are and I0. As its main or principal parts the mechanism |2 comprises a housing 32 and avspool type valve 33. The housing has a flat upper face in engagement with the flat face I5 at the lower end of themember l4 and a flat lower face in engagement with the fiat face 21 on the upper portion of the cylinder side wall 20. In addition, the housing has a horizontal bore 34 in parallel relation with the cylinder three laterally spaced

upper ports

35, 36 and 31 and two laterally spaced

lower ports

38 and 39. The upper ports lead. from, and communicate with, the upper portion of the bore 34- and the lower, ports are in communication with, and lead from, the lower portion of the bore. The port 35, registers with the lower end of the duct Hi, the port 36 registers and communicates with the lower end of the passage I8, and the port 31 is in registry with inder pjort 29and is so positioned that it is disposed midwaybetween the upper ports 36 and 31. The spool type valve 33 of the valve mechanism I2 is slidably mounted in the bore 34 and has in the'central portion thereofa pair of annular laterally spaced grooves 40 and 4|. The

ends of the .valve project to the outside of the 1 from the fixed head 2| and hence reduces or housing 32 and are surrounded by stufling boxes 2 is' interposedbetween cylinder I the groove 40 registers with the ports-35 and 38' and establishes communication therebetween, the groove 4| registers with the ports 36 and 39 and establishes communication therebetween, and the portion of the valve outwards of the groove 4| closes the port 31. When the valve is in its right hand position the liquid material under pressure flows through the passage l8, the port 36, the groove 4|, the port 39 and the port 29 and thence into the left hand end of the cylinder, that is, the space between the fixed head 22 and the floating piston 3|. the material is under pressure the portion of the material entering such space forces the floating piston 3| to slide towards the false head 23. As the floating piston moves towards the false head 23 the material between the piston and the false head is caused to flow through the port 28, the port 38, the groove 40, the port 35 and the duct F6 to and through the nozzle 9. When the valve 33 is shifted to the left the portion thereof that is outwards of the groove 40 closes the port 35, the groove 40 establishes communication between the ports 36 and 38, and the groove 4| establishes communication between the

ports

31 and 39. While the valve 33 is shifted to the left the liquid material flows through the passage I8, the port 36, the groove 40, and the

ports

38 and 28 into the right hand end of the cylinder, that is, the space between the false head 23 and the floating piston 3|. As the material enters such space it forces the floating piston 3], towards the fixed head 22. As the piston slides or travels to the left in response to inflow of the material between it and the false head the material in the left hand end of the cylinder is forced through

theports

29 and 39, the groove 4|. the port 31 and the duct I1, and thence to and through the nozzl I0. During each stroke of the piston a measured quantity of the liquid material is forced through one of the nozzles. During shift of the piston to the right a measured quantity of the material is discharged from the nozzle 9 and during reverse shift of the piston, that is, shift to the left, a measured quantity of the material is discharged from the nozzle |ll. The charges from the two nozzles are precisely equal. By

adjusting the false head 23 toward the fixed head 2| the amount of each charge will be increased.

Adjustment of the false head away from the fixed head 2| results in a reduction in the amount or volume of each charge. The spool type valve 33 of the unitary valve mechanism 2 is shifted automatically at the end of each stroke of the floating piston 3| and hence there is a continuous intermittent discharge of the charges of the material from each nozzle.

In addition to the various parts heretofore described the measuring and filling machine comprises means for automatically shifting the spool type valve of the valve mechanism at the end of each stroke of the floating piston in the This means comprises a pair of axially aligned push rods 43 and 44, a tie rod 45 between the two push rods, a lever 46, a D- valve 41, and a cylinder-piston'device 48. push rod 43 is slidably mounted in a sleeve 49 at the right hand end of the cylinder H. The inner end of the sleeve extends through, and is fixedly secured within, a bore 59in the false head 23. The bore 50 is positioned at one side of the By reason of the factthat The center of the false head 23, as shown in Figure 7 through a hole 51' in the fixed head 2| of the cylinder ll-and carries a stuffing box 52 for the outer endof the push rod 43.- When the false head 23 is adjusted longitudinally of the cylinder the outer'end'ofthe sleeve 49 slides relatively to the fixed head 2|. 'The inner end of the push rod 43 projects asmall distanceinwards of the inner face-of the TalseY'hea'd 23' with the result that the floating piston 3| 'abuts against it as it reaches theend of right "hand sliding movement and sliift's the push r'o'd=43 to the right.

The-push rod 44 extends longitudinally o'f thecylinder lland'is slidalily"mountedin a sleeve 53 which is fixedly mounted in a bore54 in the head-22 andis axially'aligned with the sleeve 49'for'the push'rod' 43. 'The outer end of the sleeve 53'is provided with 'a stuffing box 55 for the outer end of the push rod 44. The inner end of the push rod 44' projects asmall distance inwards of the fixed head 22 of the cylinder and hence when the floating piston reaches theend of its stroke inconnection with left hand sliding movement it abuts against the push rod 44 and shifts the latter to the left, as viewed in Figure 4. The tie rod 45 is located exteriorly' of the cylinder l'and is positioned in parallel relation with the cylinder side wall'20.- It serves to connect the two push rods for conjoint sliding movement and is-mounted for axial slid-- ing movement in' a pair of apertured lugs 56'on theends ofthe cylinder sidewall 20. The right hand end of the tie rod is connected to th'e outer end of the push rod 43 by way of an arm51.

One' end of this arm has a socket 58 in which; the outer end of the push rod 43 fits. Alley type 'pin 59 serves fixedly or rigidly to secure the outer end of the push rod 43 within the socket with the result that the push rod and arm are rigidly connected together. The other end of the arm 51 has a horizontal bore 60 and surrounds a sleeve 6|. The latter'is mounted on the right hand end of the tie rod 45 and is connected thereto by a screw thread'connection 62. The central portion of the sleeve 6| extends through, and is 'rotatably' mounted within, the bore 60 in said other end of the arm 51. The inner end of the sleeve is provided with an enlargement 63 which abuts against the inner end of the hole defining portion of the arm 51. The outer end of the sleeve is provided with a head 64 having a kerf therein whereby the sleeve may be turned relatively to the tie rod 45. The arm 51 is 50 arranged that it is caused to move laterally in connection with axial adjustment of the sleeve results in outward' movement or adjust ment of the arm '51 and the push rod 43. In order to elfect conjoint adjustment of the push rod 43 and the false head 23'a gear 65 and a pinion 66 are provided. The gear is mounted on, and fixedlysecured to; the outer end of the screw 24 for adjustingthe false head 23. The pinion 66 is fixed to theouter end of the sleeve 6|, meshes with the gear 65, and is'disposed between the head 64 and the outer end of the bore defining portion of the arm 51. The thread of the screw 24 is a right hand thread and the thread of the screw thread connection 64 is a left hand thread. The two threads are so designed, so far as 4. The out'er end of thesleeve 49 extends loosely pitch is concerned, and the gear 65 and the pinion 66 are 'so'proportioned that I when the screw 24.: is adjusted in order to slide the false head 23 to and from the fixed head 2| the push rod 43 is adjusted correspondingly. In other words, when the screw 24 is turned so as to shift-the false head 23 away from the fixed head 2| the sleeve 6| is so axially displaced that the push rod 43 iscaused to follow the false head and maintain its normal. position relatively thereto; 'When the screw 241s turned so as to shift'the false head;231towardthe5fixed head -2| in orderto increase the size of the measured charges of liquidmaterial the sleeve 6| is so axially displaced with respect to the'tie rod that the push rod 43 is caused to follow the false'head 23; The'gear' 65, the pinion 66, the sleeve BI and the arm 51 constitute simple means for causing the push rod 43 to move conjointly with the false head 23 in connection with adjustment of the latter.; The left hand end of the,

movement and they are also caused conjointly' to shift to the left when the piston approaches the end of its stroke tothe left. I l

The lever 46 extends vertically and is disposed outwards of the central portion of the tie' rod 45.- It serves as a'medium for controlling the D' valve 41 in response to shift of the tie rod 45; The upper'end of the lever 46 is pivotally supported by way of a pivot stud 68 and this, as shown in Figure 2, is secured to, and projects laterally from, the central portion of the side wall 2|! of the cylinder H. The central portion of thelever 46 is operatively connected'tothe central portion of the tie rod 45 by way of a pin 69. One end of this pin is fixedly connected to a collar 10 on the central portion of the tierod .45 and the other end of the pin fits within a vertically extending slot 1| in the central portion of the lever 46. When the tie rod 45 is shifted to the right the lever 46 is caused to swing to the right. Reverse shift on the part of the tie rod results in the lever 46 swinging to the left.

The D-valve 41 constitutes a medium for controlling the cylinder-piston device 48. It is mounted on a bracket .12 on the righthand end of thecylinder side wall 2!) and comprises a horizontally elongated housing 13 and a slide valve 14 in the housing. The housing has a chamber 15 forthe slidevalve 14 and embodies a port 16 in the upper portion thereof and three laterally spaced

ports

11, 18 and 19 in its bottom portion.

The port 16 leads to the chamber 15 and is connected to a source of air under pressure by way of a vertically extending pipe 80. The port 18 is disposed between the

ports

11 and 19 and is in the nature of an exhaust port in that it leads to the-atmosphere surrounding the D-valve 41. The port 18 communicates with the left hand side of the chamber 15 as viewed in Figure 5, and the port 19 communicates with the right hand end of the chamber 15. The slide valve 14 is mountedon a horizontally extending slide rod 8| and is adapted to slide or move back and forth in the chamber 15in response to Sliding movement, of

in connection with sliding the slide rod. One end of the slide rod projects through the housing 13 of the D-valve 41 and is connected by a link 82 to the lower end of the lever 46. The bottom portion of the slide valve 14 engages slidably the bottom wall of the housing 13 of the D-valve 41 and has a downwardly facin cavity 83. When the lever 45 is swung to the right, as viewed in Figure 2, the slide valve 14 is caused to slide tothe right, as viewed in Figure 5. When the slide valve 14 is slid to the right the port 11 is uncovered and receives air under pressure from the port 18 via the chamber 15 and the port 19 is covered by the slide valve and is in communication with the exhaust port 18 by way of the cavity 83 in the slide valve. When the slide valve 14 is slid to the left hand end of the chamber 15in connection with left hand shift of the tierod 45 the port 19 is exposed and receives air under pressure from the port 16 via the chamber 15', and the port 11 is covered by the slide valve and communicateswith the exhaust port 18 by way of the cavity 83.

The cylinder and piston device 48 operates to shift the spool type valve 33 of the valve mechanism l2 under control of-the D-valve 41. It is located above the cylinder l and in alignment with the right hand end of the housing 32 of the valve mechanism l2, and comprises a horizontal cylinder 84 and a piston 85; The cylinder is supported in axial alignment with the spool type valve 33 of the mechanism l2 by way of a bracket 86. It consists of a cylindrical side wall 81 and a pair of fixed heads 88 at-the ends of the side wall. A port 89 communicates with the left hand end of the cylinder interior and this port is connected to the port 190i the D-valve 41 by way of a pipe 98. A port 8| communicates with the right hand end of the interior of the cylinder 84 and this port is connected to the port 11 of the housing 13 of the D-valve by way of a pipe 92. The piston 85 of the device 48 is mounted to slide back and forth between the ends of the cylinder 84 and has the left hand end thereof connected,

to the right hand end of the spool type valve 33 of the valve mechanism I2 by way of a horizontally extending rod 93. This rod extends through a stufiing box 94 in the head 88 at the left hand end of the cylinder side wall 81. When the slide valve 14 of the D-valve is shifted to the right air under pressure flows into the right hand end of the cylinder 84 via the port 11, the pipe 92 and the port 9| and causes the piston 85 to slide to theleft hand end of the cylinder 84. Such sliding movement on the part of the piston 85 serves to shift the spool type valve 33 to the left. When the slide valve 14 of the D-valve is shifted to the right, as shown in Figure 5, the left hand end of the cylinder 84 of the cylinder-piston device 48 is vented by way of the port 89, the pipe 90,.

the port 19, the cavity 83 and the exhaust port 18. When the slide Valve 14 of the D-valve is shifted to the left as the result of the floating piston 3| being shifted against the push rod 44 air under pressure is admitted into the left hand end of the cylinder 84 by way of the chamber 15in the D-valve housing 13, the port 19, the pipe 90 and the port 89. When the sliding valve 14 is shifted to the left the right hand end of the cylinder 84 is vented by way of the port 9|;

the pipe 92, the port 11, the cavity 83 and the exhaust port 18.

The operation of the measuring and filling machine is as follows:

When the spool type valve 33 is shifted to the through the passage |8 the port 36, the groove and the

ports

39 and 29 into the left hand end-of the cylinder As the material enters theleft hand end of the cylinder it forces the floating piston 3| to slide to the right. ,Such

sliding on the part of the floating piston results in the. material between it and the false head 23 .being forced through

theports

28 and 38, the

groove 40, the port 35, and the duct Hi to the nozzle 9 ashereinbefore described. When the floating piston 3| reaches the false head 23 it engages the inner end of the push rod 43 and slides thepush rod to the right. This results in the tierod 45 being shifted to the rightand causes thetie rod to swing the lever 46 to the right.

Such swinging on the part of the lever causes the slide valve 14 of the D-valve "to slide to the right, as viewed in Figure 5.v As soon as the slidevalve is shifted to the right air under pressure flows-through the port 11 from the chamber 15, and thence passes through the pipe 92 to the port 9| and into the right-hand end of the cylinder 84 of the cylinder-piston device 48. As soon as air under pressure enters the right hand end of the cylinder 84 it slides the piston 85 to the left and causes the spool type valve 33 of the mechanism |2 to slide to the left; -As soon as the spool type valve 33 is slid to the left it closes the port 35 and establishes communication between the ports 36 and 38, and also establi'shes communication between the

ports

31 and 39. When the ports 36 and 38 are in communication with one another the liquid material under pressure flows into the right hand end of the cylinder via the port 28 and causes the float- 1 ing piston 3| to slide to the left, that is, towards 29" and 39, the groove 4|,the port 31 and the duct I! to and through the nozzle l6; As soon as the floating piston 3| approaches the fixed head 22 it comes in contact with the inner end of the push rod 44 and causes such push rod, together with the tie rod 45 and the push rod 43, to slide to the left. Such sliding movement results in the lever 46 swinging to the left and causing the slide valve 14 of the D-valve 41 to slide to theleft hand end of the chamber 15 in the housing 13. When the slide valve I4 is shifted to the left hand end of the chamber 15 air under pressure flows from the chamber I5 through the port 79, the pipe 99, and the port 89 intov left hand end of the cylinder 84. As the air flows into the left hand end of the cylinder 84 it forces the piston 85 to the right and this in turn causes the spool type valve 33 of the valve mechanism l2 to slide to the right. Thereafter the same cycle of controlled movements takes place. a

The herein described measuring and filling machine is positive in operation. It effectively and efiiciently fulfills its intended purpose and is characterized by simplicity of design.

Whereas the machine has been described as being primarily adapted for use in filling containers with measured charges of liquid lardor vegetable oil shorteningit may be used in connection with other liquids or semiliquids. It is also to be understood that the invention is not to berestricted to the details set forth since these may be modified within the scope of the appended claims without departing from the spirit and scope of the invention.

.Pet nt 1 Having thus described the invention what I claim as new and desire to secure by Letters v1. A machine adapted to fill containers with measured charges of liquid material and comprising a cylinder having ports at the ends thereof, a floating piston mounted in the cylinder to ,slideback and forth betweenthe ends, passage forming means connected to receive the material underpressure, a unitary valve mechanism disposed in associated relation with thecylinder ,and consisting of a housing between the passage 1 and said cylinder and a spool type valve mounted .inthe housing to slide back and forth between ,two, positions, adapted when in oneposition to establish communication between the passage and one of. the ports and open the other port and when in itsother position tov establish communication betweenthe passage and said other port and open saidone port, and provided at one end thereof with alongitudinally extending rod, andmeans for automatically shifting the spool type valve of the valve mechanismat the end of each stroke of thefloating piston, embodying a fluid. pressure actuated piston and cylinder de- :vice having the piston thereof mounted on said rod.

2a A machine adapted to. fill containers with measured charges of liquid material and comprising a .cylinderihaving ports at the ends thereof, a floating piston mountedin thecylinder .to'islide back and forth between its ends, passage forming means connected to. receive the material under pressure, a two-position valve mechanism between the passage and said. cylinder and 'adapted when in one position to establish communication between, the passage and one of the ports andopen the other port. and when in its other position to establish communication be- .tween the passagegand said other port and open said; 'one port, and: means for automatically operating the valve mechanism at the end of each stroke of the. floating piston,.embodying a pair of piston .zactuated; push .rods extending through thecylinderends, respectively, into the interior of the cylinder and a tie rod disposed .exteriorly of .the cylinder, having the ends thereofzrigidly. connected to the outer ends of the push rods, and serving to connect. said push rods together for conjoint. sliding movementin both directions.

, 3.;A. machine adapted to fill containers with measured. charges of liquid material and comprising a cylinder havingports at the ends thereof, a floating piston mounted .in the cylinder to slide vbackand forth between its ends, passage forming means connected to receive .the material under pressure. a two-position .valvemechanism jbetween' the passage and said cylinder and adapted whenin one position to establish communication betweenthe passage and one of the ports and open theother port and when in its other. position to establish communication between the passage and said'other port and open said one port, and-means for automatically operating the valve mechanismat the end of each stroke of the floating piston, embodying a pair of piston'actuated push rods extending through the cylinder ends, respectively, .into'the interior of the cylinder, a melod /disposed exteriorly of the cylinder; having the'ends thereof connected to the outer ends of the push rods, and serving to connect; said push rods together for conjoint sliding movement in both directions, and a lever having one end thereof mounted on a fixed pivot and its central portion operatively connected to under pressure, a two-position valve mechanism between the passage and said cylinder and adaptedwhen in one position to establish communication between the passage and one of the ports and open the other port andwhen in its other position to establish communication between the passage and said other port and open said one port, and means for automatically operating' the valve mechanism at the end of each stroke of the floating piston, embodying a pair of piston actuated push rods'extending through the cylinder ends, respectively, into the interior of the cylinder, a slidably mounted tie rod disposed exteriorly and longitudinally of thecylinder, having the ends thereof rigidly connected to the outer ends of the push rods, and serving to connect said push rods together for conjoint sliding movement in both directions, and a lever adjacent the central portion of the tie rod and having one end thereof pivotally supported on a pivot on the cylinder and its central portion operatively connected to said central portion of the tie rod. 1

5. A machine adapted tofill containers with measured charges of liquid material and comprising a cylinder provided with fixed heads at its ends and embodying a slidably mounted false head inwards of one of the fixed heads and a pair of ports leading, respectively, to the ends of the space in the cylinder between the other fixed head and the false head, a floating piston-mounted in the cylinder to slide back and forth between the other fixed head and the false head, passage forming means connected to receive the material under pressure, a two-position valve mechanism between the passage and the cylinder adapted when in one position to. establish'communication between the passage in one of the ports and'open the other port and when in its other position to establish communication between the passage and said other port and open said one port, and means for automatically operating the valve mechanism at the end of each stroke of the floating piston embodying a push rod extending through said other fixed head of the cylinder, a second push rod extending through said one fixed head and the false head, a slidably mounted tie rod disposed exteriorly and longitudinally of the cylinder and having one end thereof fixedly connected to th outer end of the first mentioned push rod, and an arm having one end thereof fixedly connected to the outer end of said second push rod and its other end extending around the other end of the-tie rod and connected thereto so that it is adjustable longitudinally of said tie rod,

6. A machine adapted to fill containers with measured charges of liquid material and comprising a cylinder provided with fixed heads at its ends, having a slidably mounted false head inwards of one of the fixed'heads, and an adjusting screw therefor extending through said one head, and also embodyin a pair of ports leading respectivelyto the ends of the space in the cylinder between the other fixed head and th false head, a floating piston mounted in the cylinder to slide back and forth between the other fixed head and the false head, passage forming means connected to receive the material under pressure, a two-position valve mechanism between the passage and the cylinder adapted when in one position to establish communication between the passage and one of the ports and open the other port and when in its other position to establish communication between the passage and said other port and open said one port, means for automatically operating the valve mechanism at the end of each stroke of the floating piston embodying a push rod extending through said other fixed head of the cylinder, a second push rod extending through said one fixed head and the false head, a slidably mounted tie rod disposed exteriorly and longitudinally of the cylinder and having one end thereof fixedly connected to the outer end of the first mentioned push rod, and an arm connected to the outer end of said second push rod and mounted on the other end of the tie rod so that it is longitudinally adjustable relatively thereto, and means operative in response to adjustment of the false head by the adjusting screw automatically to effect corresponding adjustment of the arm relatively to the tie rod.

'7. A machine adapted to fill containers with measured charges of liquid material and comprising a cylinder provided with fixed heads at its ends, having a slidably mounted false head inwards of one of the fixed heads, and an adjusting screw therefor extending through said one head, and also einbodying a pair of ports leading respectively to the ends of the space in the cylinder between the other fixed head and the false head, a floating piston mounted in the cylinder to slide back and forth between the other fixed head and the false head, passage forming means connected to receive the material under pressure, a two-position valve mechanism between the passage and the cylinder adapted when in one position to establish communication between the passage and one of the ports and open the other port and when in its other position to establish communication between the passage and said other port and open said one port, means for automatically operating the valve mechanism at the end of each stroke of the floating piston embodying a push rod extending through said other fixed head of the cylinder, a second push rod extending through said one fixed head and the false head, a slidably mounted tie rod disposed exteriorly and longitudinally of the cylinder and having one end thereof fixedly connected to the outer end of the first mentioned push rod, a sleeve mounted on the other end of the tie rod and connected thereto by a screw thread so that it is adjustable longitudinally of the tie rod, and an arm having one end thereof connected to the outer end of said second push rod and its'otherendmbunted on the sleeve so that it is adjustable therewith while at the same time permittingthesleeve to rotate relatively thereto, and means for-eifecting conjoint and corresponding adjustment of the false head and said arm consisting of a-gea-r fixed to the outer end of the adjusting screw and a pinion in mesh with the gear and fixed "tosaid sleeve.

CARL G; -MEYERS: