US1046715A - Syruping-machine. - Google Patents

Description

L. E. ARNOLD.

SYRUPING MACHINE.

APPLICATION FILED APB.2, 1910.

Patented Dec. 10, 1912.

6 SHEETS-SHEET 1.

fiweizzaz? flaw L. E. ARNQLD. SYRUPING MACHINE.

APPLICATION FILED APR.2, 1910.

1,046,715. Patented Dec.10,1912.

6 8HEBTSSHEET 2.

L. E. ARNOLD.

v SYRUPING MACHINE. APPLICATION FILED APR.2, 1910.

1,046,? 15. v Patented Dec. 10, 1912.

6 SHEETS-SHEET 3.

L. B. ARNOLD.

SYBUPING MACHINE.

APPLICATION FILED APR.2, 1910.

Patented Dec. 10, 1912.

6 SHEETS-SHEET 4.

jiwezdor %%W% L. E. ARNOLD.

SYRUPING MACHINE.

APPLICATION FILED APR.2, 1910.

1 ,046,7 1 5 Patented Dec. 10, 1912.

e SHEETS-SHEET 5.

L. E. ARNOLD.

SYRUPING MACHINE.

APPLICATION 11.21) APR.2, 1910.

Patented Dec. 10, 1912.

6 SHEETS-SHEET 6- I W T I 30 TE STATES Pn rEN'r GFFIQE.

LEWIS E. ARNOLD, 0F HONOLULU, TERRITORY OF HAWAII.

SYRUPING-MACHINE.

Application iiled April 2,1910. .Serial No. 553,039.

lowing to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

This invention relates to improved apparatus. for the syruping of fruit, vegetables, meat orother food products in order to alter or ameliorate the same.

The primary objectof the invention is to provideapparatus for removing air or other gases in the voids of the container in which the food is to be packed, and in the pores, cells or interstices of the material within the container, and to replace such air or by a suitable fluid of liquor or gaseous form, such as a syrup, brine or suit-able gaseous agent, such fluid serving to preserve or improve the quality of the product or fulfilling both of these functions.

The apparatus is peculiarly adapted for the treatment of pineapples prior to the permanent sealing of the containers, in

which application the pores or cells of the fruit are filled or impregnated with a suitable syrup or its equivalent which will im'-' prove to a large degree the quality of the fruit. It is particularly intended to improve the color and flavor of light colored pineapples which, are not fully ripe, and when suchpineapples are treatedin the improved apparatus they are turned to a yellow or golden color and sweetened in less than a minute, so that they then have the appearance and properties of a fully matured luscious pineapple. However, the apparatus is obviously well adapted for many other uses.

The invention also has as its object the provision of an apparatus which will produce the foregoing results in-an automatic and continuous manner, and it is also aim-ed to adapt the apparatus or. machine to the various sizes and shapes of glass jars, tins or other containers which are in general commercial use.

Specification of Letters Patent.

which are to be treated.

Patented Dec. 10, 1912.

In the accompanying drawings, Figure 1 represents a plan view, with parts broken away, of an apparatus embodying my invention. Fig. 2 represents a sectional elevation on the line A-A of Fig. 1. Fig. 3 represents a sectional elevation of a portion of the apparatus on the line BB of Fig.' 1. Fig. 4 is a plan viewof the bracket for carrying the interference pin shown in Fig. 3. Fig. 5 is a sectional elevation of a portion of the apparatus on the line C0 of Fig. 1, showing mechanism for opening the cock to the vacuum suction. Fig. 6 is a plan view of a portion of that shown in Fig. 5.. -Fig. 7 is an elevation of a portion of the apparatus shown in Fig. 6. Fig. 8 is an elevation of the sleeve and interference pin shown in Fig. 6. Fig. 9 is a sectional elevation on the line D-D of Fig. 1. Fig. 10 is an elevation of a portion of the apparatus at the conveyer side, shown in plan at the top of Fig. 1. Fig. 11 is a plan view of an adapter to suit the size of the containers to be treated. Fig. 12 is an elevation of Fig. 11.

Similar characters of reference indicate similar parts throughout the several views.

Referring to the drawings, the stationary frame 1 is circular and supported by the legs 2. An annular table 3 rests upon three screws 4-, which pass vertically through the frame 1. The points 4 of said screws 4 preferably enter recesses 3 in the under side of the table (Fig. 3) whereby the. table 3 may be maintained concentric with the 7 frame 1, and at the same time it may be either elevated orlowered so as to adjust same to suit the height of the containers The table 3 is provided on one side with a trough 3 for an apron or belt conveyer 5 operated in any well known manner. A flange 3 is also provided around and above the rim of the table 3, except that where the trough 3 joins the table 3 this flange 3 is omitted to provide a passage 125 for the admission of containers to be treated from the apron 5 onto the table 3, also for the passage 127 for the discharge of'these containers after treatment from the table 3 back onto the apron 5 all as hereinafter described.

A vertical shaft 6 is j ournaled in the step- 'box 7 and in the bearing 1 located at the ample, by a bevel gear 8 keyed to sa d shaft and meshing with a bevelpinion 9keyed to a countershaft 1O journaled in suitably supported boxes 11, and provided with a driving pulley 12. Set collars 13 14 are provided on the shafts 6 and 10 respectively.

The spider 15, keyed to the shaft 6 above the bearing 1*, issmaller in diameter than the table 3. A plurality of segmental castings 16,, bolted onthe spider 1-5 by the bolts 17, are each provided with an outwardly projecting finger 16 with two vertical lugs 16 and with the holes 16 for the purpose hereinafter described.

Supported upon the ribs l5" of the'spider 15 is an annular chamber 18, connected to a vacuum pump or any other suitable means for exhausting the air within said chamber; for example, nipples 19 and 20, connected by a union 21, are screwed-into the chamber 18 and the shaft 6 respectively, so as to connect the interior of said chamber with the passage 6 in the shaft 6. On the upper end. of the shaft 6 is screwed the collar 22. Over the collar 22 is the bonnet 23 which is stationary and provided with studs 24 for tightening the packing 25 between the gland 26 and collar 22. The bonnet 23 is also provided with the pipe 27 connected .to the suction of a pump or other exhauster (not shown). The passage 6 opens to the bonnet 23. Thebottom of the chamber 18 is provided with a cock or plug 28, for the removal of any liquid which' may be entrained in said chamber 18. A reservoir 29, for holding. syrup, brine or other liquid, is provided above and supported by the chamber 18, and surrounding the shaft 6. A circular track 30 is supported above the frame 1 by the bars 31 bolted to the track and main frame by the bolts 32. ,A forked lever 33 is provided for each segmental casting 16. The forked ends 33 of each lever 33 are pivoted on the bolts 34 in the lugs 16*. The other end 33 of each lever 33 projects radially outward above the circular track 30. Each cap 35, for covering the top of the jar, tin, or other container 36, which is to be treated,

is p'rovidedwith two lugs 35 on its top and with -a hole 35 through its center.; Each cap 35 is loosely pivoted on the bolts 37 through the levers 33, near the center of the latter, and through the holes 35 in the lugs 35. The ends of a link 38 5) are loosely pivoted on the bolts 39 inone ofthe lugs 16 and in the side of the cap 35 respectively, whereby a parallel motion of the cap is obtained and such that said cap is always maintained in a level position. The lower side of the cap 35 is provided with a rubber or other gasket 40, which may be displacement within the container, and its lower surface may have radial grooves 41 to register with grooves 35 in the bottom of the threaded portion 35 The nut 41 is made a little smaller in diameterthan the inside of the container 36, and tends to maintain the container in place and prevent same from sliding.

A T casting 42, screwed into the upper threaded portion of the hole 35 of each cap 35, is provided withtwo plug cocks 43 and 44. The end 42 of the T casting 42'containing' the plug cock 43, is preferably curved and is provided with a hose with clips 45 connecting the said end 42 with a nipple 18 in the chamber 18. The'end 43 44 and with closing contact levers 43 44", respectively, which are operated by meeting interference pins in their path as hereinafter described.

A cylindrical casting 47 is pgovided with a U shaped lug 47 to. fitthe clrcular. track 30 and be clamped to same by means of the The cylindrical casting 47 7 set screws 48. g is held vertically and sufliciently outside of the circular track30 to permit the end 33 of the levers 33 to pass same, Fig. 5.

A lug 47 is also provided, near the top of the cylindrical casting 47, to which the guide bar 49 is secure in a posit-ion both horizontal and radial toward the center of the machine, Figs. 5 and 6.' The sleeve 50 is adapted to slide on the guide bar 49 between the stops 51 and 52. A projection 50 with a slot 50 is provided on one side of the sleeve 50, Figs. 6 and 8. A tension spring 53 is connected at one end to the lug 47 and at the other end to the projection V 50*, such that normally the sleeve ispulled toward the stop 51. A lever 54 is secured by the pin 55 to the upper end of the shaft 56 adapted to turn inthe cylindrical casting .47. The link 57 is pivoted at one end by the bolt 58 to the sleeve 50 and at its other end 'by the bolt 59 to the lever 54. A collar 60 is secured to the lower end of the shaft 56 below the casting 4'7. The collar 60 is provided with ears 60 to which a flat spring 61 is attached. When the sleeve 50 is in its The interferencepin 62 is provided with a v collar 62 and a threaded end 62. The pin 62 is adjust-ably clamped to the projection 50 of the sleeve .50, through the slot 50*, by means of a nut 63 on the threaded end 62 and a washer 64 interposed. When the sleeve. 50 is against the stop 52, thepin 62 is in positionto engage the contact lever '43 and open the plug cock 43, Figs. 5 and 6.

screws 68, Fig. 4. This bracket 67 is offset to clear the ends 33 of the levers 33, Fig. 3. One end of a flat bar 69 is secured to the upper end 67 0f this bracket 67, and a slot 69 is provided near the other end of said I bar 69. An interference pin 70, with nut 71 and washer 72, is clamped to the bar 69, in a manner similar to that described for the pin 62. The pin 70 is adapted to engage the contact lever 43 and close the plug cock'43.

A cylindrical casting 73, similarto the one 47 previously described, is provided for engaging the contact lever 44 and opening the plug cook 44, Fig. 1. v In this case, however,'the guide bar 49, spring 53, and link 57, are made longer in order that the pin 62 may .be in a position to engage the contact lever 44 and open the plug cock 44 when the sleeve 50 is against the stop 52. 1 A bracket74, similar to the bracket 67, is provided for closing the plug cock 44, Fig. 1.

In this case, however, the flat bar 69 is made longer in order that the pin 70 may engage the contact lever 44 and close the plug cock 44. A segment of track 75, superimposed on the circular track 30, is held in place by the bolts 76, Figs. 1 and 9. The end 75 of this segmental track 75 is beveled, in order that the end 33 of each lever 33 may be forced upward on same and slide upon the segmental track 75, when the said end 33 encounters said end 75 in its course as it is revolved in the direction shown by the arrow, Fig. 1. The end 75 is also beveled to permit the end 33 of each lever 33 to drop off same gradually.

An abutment 77 is provided across the path of theapron 5 and above same, and is secured to the trough 3". A pawl or catch 78 is pivoted to the inner end 77 of the abutment 77 by the screw 79. A flat spring 80, attached .to the end 77 of the abutment 7 7 pushe's on a pin 81 on the catch 78, and maintains the catch 78 normally in ap'osition projecting slightly forward of the abutment' 77 with .the point 78" engaging the crotch 82 in the edge of the push plate 82.

The catch78 is shown released in Fig. 1.

The push plate 82 is adapted to slide in the grooves 83 84 of the guides 83 84 project ing from the outer side of the trough'3 just forward of the abutment 77. The guide 83 is provided with a projecting lug 83 against which the pin 85 in the push plate 82 is normally held by means ofa tension spring 86 attached to said pin 85 and to a pin 87 in the outer end ofguide 83.

. A cylindrical bracket-88 is bolted by the bolts 89 through the ears 88 to the outside near the feed end of the trough 3*, Figs. 1 and 10. A lever 90 is fastened by a pin 91 to the vertical shaft 92 in the cylindrical bracket 88. A collar 93 is secured to the .upper end of said "shaft 92 by the pin 94.

The lever 95 is loose on the shaft 92 between said collar 93 and the lever 90. The lever 95 isnormally held against a pin 96 on the lever 90 by means of a tension spring 97 attached to the ends 90 and 95 of the levers 90 and 95 respectively. A removable contact stud 98 is screwed into the other end 95 of the lever 95 and. is adapted to be engaged by the end 33 of each forked lever 33 when sliding on the segmental track 75. A wedge 99 is secured by the screw 100 upon the segmental track 75 for lifting the end 33 of the lever 33 sufliciently to pass over and disengage same from the contact stud 98. The stud 98 is made of various lengths to suit the height of the containers to be treated. A lever 101 is secured by a pin 102 to the lower end of the shaft 92 and just below the bracket 88. A link 103 is connected by the belt 104 to the end of the lever 101 and by the stud 105 to the under side ofthe push plate 82.

A bracket 106, similar to the one 88, is bolted by the bolts 107 through the ears 106 to the inside near the discharge end of the trough 3". pin 109 to the upper end of the vertical shaft 110 in the bracket 106. A contact stud 98 is screwed into the end of this lever 108. A lever 111 is secured by the pin 112 to the lower end of the shaft 110 below the bracket 106. A push plate 113 is adapted to slide radially in the grooved guides 114' 115 attached to or a part of the table 3. The guide 114 is provided with a lug 114 against which the pm 116 in the push plate 113 is normally held by means of the tension spring 117 attached to said pin 116 and to a pin 118 in the inner end 114 of said guide 114. The bar 119 is connected by 'the bolt 120 to the end of the lever 111, and by the stud 121 to the under side of the push plate 113.. A wedge 122, similar to the wedge 99, is similarly clamped upon the segmental track 75 for lifting the end 33 of the forked lever 33 and disengaging same from the contact stud 98 in theend of the lever 108. An adapter casting 123, preferably provided with a A lever 108 is secured by the.

flange 123, maybe provided to be removably secured to each segmental casting 16 by the dowels 124 in the holes 16, said flange 123 I fitting against said casting 16 and the finger 16, Figs. 11 and 12.

The operation is substantially as follows -The shaft 6 with the spider and the parts thereto attached are revolved slowly in a left hand direction as shown by arrow, Fig. 1, by means of a belt from any suitable source of power appliedto the pulley 12. The height of the table 3 is adjusted by means of the screws 4 to suit the containers 36 to be treated. The apron 5 moving in the direction from left to right, as shown by the arrow in .Fig. 1, conveys the containers.

. A-containerthus moved first encounters the slide underneath them. The end 33 of the onto theshaft 92 in positions such as to ac- .complish this result.

this arrangement prevents the posslbllity of lever' 33 en ages the contact stud 98 on the lover 95 an swings said lever on the shaft 92. The spring 97 pulls on the lever 90 and turns the shaft 92 in the bracket 88 and with it swings the lever 101, which in turn pulls the link 103 and the push plate 82, against the action of the spring 86. The tension of the spring 97 is made greater than that of the spring .86. The catch 78 having been released from the crotch 82, the push plate 82 now moves across the apron 5 and pushes a container'36 before it onto the table 3, into a space between two adjacent fingers 16*, the levers being pinned It will be noted that a container 36 being jammed by reason of its not being in the proper position when the push plate operates, for the latter can only occur when the catch 78 has been released by the container to be moved. While the container 36 isthus being moved onto the table 3, the next container on the apron 5 mayencounter the push late 82 and be detained by same and'by t e sides of the trough 3 This push plate is made narrower than the container so as to push only 7 one container at a time andnever two. The

container on the apron 5, whereupon theoperation as described is repeated. If, however, the end 33 engages the contact stud 98 when the catch 78 has not been released,

the lever 95 simply swings on the shaft 92,

against the action of the spring 97, until said end is disengaged from the contact stud by encounteringthe wedge 99. VVhen- *the table 3 as previously described,.is under a cap 35, and is slld on the table by the finger 16 behind it. In being thus advanced the container 36 meets the flat spring 126, attached to the inside of the flange 3 to the left of the opening 125, Fig. 1. .The spring 126 forces the container against the segmental casting 16 as well as its finger 16, or against an adapter 123 if used, in which position the container is concentrically under the cap 35. The end 33 of the lever 33, which supports the cap 35, now leaves the end 7 5 of the superimposed track 75, whereupon the lever .33 drops, swinging on its pivots 34, and lowers the cap 35 until its gasket 40 rests upon'the rim of the container, the latter then supporting the weight of the lever 33 and cap 35 with T 42, etc. The end 33 of the lever 33 now passes under the shoe 65 and by means of the springs 66 the gasket 40 of the cap 35 is now forced down onto the container rim insuring. a tight fit and overcoming any slight irregularities in said rim. The cap 35 in lowering is maintained in a level position by means of the'paralleli-ng link 38.

While the lever is depressed b the shoe 65 the container 36'encounters t e spring 61- bar 49 to theL-position against the stop 52,

Fig. 6. The interference pin 62 is now in the path of and engages the contact lever 43 and opens the cock 43, allowing air and gases within the container to be exhausted through the hole 35", T 42, cook 43, hose 45, nipple 18*, chamberr18, nipples 19-20, passage 6, bonnet 23 and pipe 27 successively. If, however, no container had-been placed under said cap 35, then the end 33 of the lever 33 slides upon the track 30, the spring 61 is not engaged, the sleeve 50 remains against the stop 51 and the pin 62 is not in position to engage the lever 43, consequently the cock 43 would not be. opened;

around the table 3, allowing ample time for the complete exhaustion of the air and gases in the material being treated within the container. It is thus moved until it arrives opposite the bracket 67, whereupon the interference pin 70 engages the contact lever 43 closing cock 43.

In continuing its advance the container soon arrives opposite the cylindrical casting 73, Fig. 1. In a manner similar to that previously described, the contact lever 44 is engaged and the cock 44 opened. Syrup or other liquid is now admitted to the container through the hole 35 T 42, cook 44,

hose 46, from the reservoir 29. Just previous to the opening of the cock 44, the end 33 of the lever 33 is forced downward in a manner as previously described, to prevent the cap from lifting after the voids of the container and the pores of the material therein and the interstices have been filled with the liquid. The container is now under a pressure due to the height of the liquid in the reservoir above the container. For example, the fruit has thus been syruped under a vacuum, 5. e. the airand gases in the container and in the fruit therein have been replaced by syrup. The

container continues advancing and the interference pin 70, supported by the bracket 74, soon engages the contact lever 44 and closes the cock 44. Continuing, the end 33 is lifted by the beveled end 75 onto the superimposed track 75, whereby the cap' 35 is lifted off the container. The cap in rising is maintained in a level position by means of the paralleling bar 38. The nut 41 is withdrawn with the cap from the 'container and the space lately occupied by said nut provides room for the liquid, left in the passage 35 and T 42 when the cock 44 is closed, to fill the container to the proper height, the nut 41 being made a suitable size .to accomplish this result by displacement, and the passage 35 large enough to prevent the liquid being trapped therein and to allow the liquid to be discharged therefrom. When, however, there is no container under a cap 35, the pin 62 is not in position to engage the contact lever 44 and the cock 44 is therefore not opened. Continuing, the end 33 of the lever 33.now engages the stud 98 and moves the lever 108, turning the shaft 110 and lever 111, which in. turn pulls the bar 119 and the pus plate 113 against the action of the spring 117.- If a container is m front of the push plate 113 when it is moved out over the table 3, said container Wlll be pushed through the passage 127 onto the apron 5 and be thereby discharged from-the apparatus. The wedge 122 now disengages the end 33 from the stud 98, whereupon the spring 117 returns the push plate and levers air being drawn in through the defect in said container.

In the drawing I have shown the container,'which is illustrated as an ordinary tin can, as being filled with washer-shaped slices of pineapple. When this fruit is of a light color and not fully ripe, it is greatly improved by treatment, in the above described apparatus, with a syrup-which may consist of refined cane sugar and water. The peeled fruit from the field, sliced or otherwise, without any preliminary treatment, is placed within the container, temporarily sealed by a cap, air is exhausted from the container to a vacuum of about 28 inches of mercury and the container then remains in this condition for about 45 seconds, after which communication with the vacuum source is cut off and the syrup cock opened. The container is then almost instantly filled with the syrup, which thoroughly penetrates the fruit and enters all of the pores or cells of the same; the syrup cock is then closed and the container unsealed. The fruit will then be found to have a full yellow or'golden color, and it will also be sweetened to the desired extent. If a glass container is used bubbles may be seen coming out of the cells of the fruit during the vacuum treatment. It is not known whether or not the change in the fruit (particularly in color) is due to a chemical change in the fruit itself. The change in color is almost instantaneous after the syrup is admitted but-it can hardly be due to the sugar solution, which is preferably colorless. If the fruit is already yellow before treatment, it undergoes no change in color.

I claim:

1. The combination of a fixed table,

means to feed the containers onto the same,

a rotary spider above the table and carrying a I plurality of sealing devices, said spider moving the containers over the table, common air exhausting means, a source of fluid medium, connectionsbetween said air exhausting means and the respective sealing devices, and connections between said. source of fluid medium and the respective sealing devices.

2. The combination of a fixedtable to support a container, means to slide the container over thetable in a temporarily sealed condition, means carried by said first-named means to seal the container, means to depress and raise said seallng means, and

means associated with said sealing means to exhaust the sealed container and admit fluid thereto.

3. The combination of a table on which the containers are supported, means to move the containers over the table, comprising a rotary carrier, sealing devices carried by said carrier, means to operate said devices to seal and unseal the containers, and means to exhaust the sealed containers and then fill them with a suitable fluid agent.

v means to slide a container over the same,

sealing devices carried by said first-named means, stationary means to operate said sealing devices to temporarily seal said container in its movement over said table, means toact at one point in the travel of the container to subject the same to the action of a vacuum, and means automatically acting at another pointinthe travel of the container to admit a fluid medium into the same.

6. The combination of a fixed table, means to slide a container over the same, sealing devices carried by said first-named means, stationary means to operate said seal .-ing devices to temporarily seal said container in its movement over said table, means acting at onepoint 1n the travel of the container to place the same in communication with a vacuum, means acting at another point to cut ofi'the vacuum, means acting at affarther point in the travel of the'conta iner to admit a fluid to the container, and means acting at a still farther point in the travel of the container to cut oil the supply of fluid to the latter.

7. The combination of a fixed table on which the containers are supported, a carrier to slide the containers over the same,

sealing devices mounted on'the carrier, vacuum and fluid connections associated with the respective sealing devices, stationary means to depress said sealing devices on and raise them from the containers and fixed devices located at diflt'erent points in the travel-of the carrier to open and close said connections automatically.

8. The combination of a fixed table, a carrier movable over the same, sealing devices mounted on the carrier, stationary means to raise and lower said sealing devices, vacuum and fluid connections associated with each sealing device, each of said connections including a valve, and fixed devices acting at different points in the travel of the carrier to operate said valves automatically.

9. The combination of a fixed table, a rotary carrier or spider above the same, a plurality of sealing devices mounted on the carrier, a vacuum connection associated with each sealing device andcomprising a valve,

a fluid connection associated with each sealing device and likewise including a valve, said carrier moving the containers-successively over the table in an endless path, means for opening the vacuum valve when each container is sealed and begins its movement over the table, means to close said valve after a predetermined interval, means to then open the fluid valve, and further means for closing the fluid valve.

10. Inapparatus such as described, the

combination of a fixed table, a movable spider above the same and acting to move the containers over the upper surface of the table, sealing devices carried by said spider,-

means operated during the movement of said spider to raise and lower the sealing means, and means to adjust the height of the table relatively to the spider to adapt the apparatus to containers of different heights, as

described.

11. The combination of a fixed frame, an upright shaft journaled therein, means to rotate said shaft, a fixed table above and concentric with said shaft, means to adjust I said table vertically relatively to the frame, and a spider above the table connected to said shaft for rotation thereby, to slide containers directly on said table, sealing devices carried by said spider and meansvon said fixed frame for raising and lowering the sealing devices.- 1

12. In a machine such as described, the combination with a table, the carrier .and the-sealing devices carried by the latter, of

a track coacting with said sealing devices to i operate them automatically.

13. The combination of a rotary spider or carrier, pivoted sealing devices carried thereby and comprising caps, and relatively fixed means to depress and raise the caps.

l4. The combination of a rotary spider having a plurality of radial arms between which the containers are engaged, and piv'-- oted sealing devices carried by said splder in the spaces between said arms, fixed means to depress and raise the sealing devices as described.

15. The combination of a rotary spider having a plurality of radially directed arms,

forked levers pivoted to the spider in the spaces between said arms and movable vertically, caps carried. by'said levers, and means for raising and lowering said levers automatically. 1

16. Ina syruping machine, the combination of a rotatable central source of fluid supply, a central rotatable air exhausting chamber, a spider mounted to rotate with ply and air exhausting chamber respectively, and means acting during the rotation 1bof said spider to raise and lower said caps.

In testimony whereof I aflix my signature, 1n presence of twowitnesses.

. LEWIS E. ARNOLD Witnesses: I

ROBT. J. PRATT, H. G. GINAOA.

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