US1686404A

US1686404A - Sack filler

Info

Publication number: US1686404A
Authority: US
Publication date: 1928-10-02
Anticipated expiration: 1945-10-02

Description

R. L. CALLAHAN "oct, 2,' 192s.-

SACK FILLER original Filed spt. 18. l192e: 7 sheets-sheet 1 VN n.

Oct. 2, 1928. 1,686,404

R. L.. CALLAHAN SACK FILLER Original Filed Sept. 18, 1926 7 Sheets-Sheet 2 R. L. rCLLAHN SACK FILLER original Filed sept. 18, 192s sheets-sheet :s

El. wam

oct. 2,1928.

'R,L.CALLAHAN SACK FILLER` Griginal Filed Sept. 18, 1926 7 Sheets-Sheet 4 Oct. 2, 1928. f 1,686,404

R. L.. CALLAHAN SACK FILLER Original Filed Sept. 18, 1926 '7 Sheets-Sheet 5 Mvc/mbo@ E. L. 'allahan/ R. L. CALLAHAN SACK FILLER original Fjiled Sept. 18, 1926 Oct. 2, 1928.

Oct. 2, 1928.

R. L. CALLAHAN SACK FILLER Original Filed Sept. 18, 1925 '7 Sheets-Sheet '7 wlw Patented Oct. 2, 1928.

UNITED STATES PATENT oFFicE.

RBERT LEE CALLHAN, 0F LOUISVILLE, KENTUCKY.

SACK FILLER.

Application illed September 18, 1926, Serial No. 136,295. Renewed April 11, 1928.

The resentinvention relates to improvements in sack fillers and has for an object to provide an improved device for holding a sack while it is being filled with such commoditiesas grain, cereals, rice, sugar, coffee, etc., and at the same time providing for the jolting, twisting, closing and sewing of the sacks. l

Another object of the invention is to provide an apparatus which admits the speedy handling of great numbers of sacks in order to increase the present possible out-put and to achieve this with a less number of operators at decreased labor cost.

A further object of the invention resides in providing an improved clamping device for the mouth of the bag whichwill facilitate .the placing, removal and holding of the ba still further obj eet of the invention resides in the provision of an improved.

supporting plat-form for the bottom of the bag, with mechanism to subject this blatform to both an undulating and an oscillating movement, whereby to secure a jolting and a twisting action in the-bag to pack the contents tightly therein and to thereby permit freedom at the edges of the bag for the subsequent sewing operation.A

gVVith the foregoing andot-herobjects in view, the invention will be more fully described hereinafter, and will be more particularly pointed out in the claims appended hereto.

In the drawings, wherein like. symbols refer to like or corresponding parts throughout the several Views,

Figure lis a diagrammatic view showing an apparatus according to the present 1n- `vention.

Figure Q, is a front elevation, with parts shown inpsection. of one of the carriages with a bag mounted in place thereon.

Figure 3 a side elevation, with parts shown in section of the carriage with the lower portion thereof in the lowered position.

Figurel is a similar view with a lower portion of the carriage in the raised position and with `the sewing mechanism and bag indicated in dotted lines.

Figure 5 is a horizontal section taken on the linev 5 5 in Figure Figure 6 is a section on the line 6-6 in Figure 3 with the hopper removed.

Figure 7 is a transverse section taken on the line 7 7 in Figure 6.

Figure 8 is also a cross section taken on the line 8 8 likewise in Figure 6.

Figure 9 is a section taken on an enlarged scale through one of the clamping devices.

Figure 10 is an enlarged fragmentary front elevation of the bag holding mechanism, and

Figure 11 is an end elevation of the bag holding device.

Referring more particularly to the drawings, Figure 1 shows diagrammatically a substantially oval track on which are mounted a number of carriages. Each of these carriages is supplied with a bag holding device, and by means of the carriages the bag is shifted about the track to a number of different stations where the bag is initially lplaced in the holder, subsequently filled,

jolted, twisted, closed, sewed and finally removed.

One of the carriages is shown in Figures 2, 3 and 4; in which figures, 12 designates the oval,'circular or other track placed upon the platform, floor of the factory or other appropriate support and engaged by the wheels 13 of the carriage which includes the frame work made from tubular metal or other suitable material.

The side or vertical bars of the frame work are indicated at 14, and these bars may be two in number, as indicated in Figures 3 and 4, coupled together by rails 15 and hung from an upper track, shown in Figures 2 and 3 which preferably comprises the lower and upper rails 1G and 17 carried by a bracket 18 held upon the roof, ceiling or other support. The rails 1G and 17 receive therebetween the wheels 19, which are journaled upon the upper ends of the posts or standards 14. The upper portion of the carriage frame is thus supported from the upper track which is of like oval, circular or otherfform conforming to that of the lower track 12. The rails or standards 11i have their lower ends indicated at 2O in Figure 2 extending down telescopically and slidably within the lower tubular members 21 of the lower movable portion of the frame work. Rather the tubular members 21 are enabled to slide up and down upon the lower portions of the carriage standards as required by the wave-like or undulating portion of the track 1.2, as indicated in Figures Cil 3 and 4. This undulating portion of the track subjects the lower carriage frame to a vertically reciprocating or undulating niotion suitable for jolti the bag and its contents, the bag bottom being indicated to` restupon platform 22, which 1s carried by the central pivot pin 2G, which is provided with I a flange 27 to engage between the wear plates or

discs

28 and 29 mounted respectively flush within the lower face of the platform 22 and the upper face of the bed 23. The upper projecting` portion of the pivot pin 2G above the flange 27 is threaded to engage threads in the socket 3() projecting upwardly from the central part of the wear plate 28, and the flange 27 is wedged `tightly against this wear plate in order to bindV the platform upon the pin. Thetlange 27 also prevents the pin 26 from dropping` through the bushing,- 31, which projects downwardly from the lower wear plate 29 and through an opening in the bed 23. The lower end of the pin is provided with an arm 32, as shown more particularly in Figure 5. This arm is connected to one end of a linkl, shown in Figures 3 and 5 and the llink atits other end is pivotally coupled to an upstanding arm 34 upon a rock shaft 35 journaled in brackets below the bed A3. The roc r shaft is aliixed to an arm' 37 having a forked or other end for carrying` a weighted wheel 38 adapted to roll along;` the supporting' surface beside the track l2, but to avoid 'traveling upon saidA track. In other words, while the vlower carriage portion partakes of the undulai'zing movement derived from the wave-like track portion, they wheel 38 travels beside such wave-like track upon a ycontinuously and uniformly horizontal sup-v portingl surface thereby setting up an oscillating movement in the `rock shaft 35, which is con'nnunicated by the connections described tothe vertical pivot pin 2G and e is'equently to the. platform 22 which receives the bottom of the bag. By this means the bag and its contents are subjected to a twisting' movement, which serves to insure the settling of the contents toward the bottom of the bag. .This twisting movement, aided by the vertical reciprmzatingl movement occasioned by the undulating track, will cause the contents to be packed `tightly in the bag;` and to leave a space above the c ntents and heeey-ieri delivery portion 40 of the weighingv machine by which the feed, grain or other material is delivered in measured quantities to the f-:aclsor containers. rllie carriages containinet the bags are brought under this delivery spout and nnnorialis permitted to descend into a. hopper 4l carriedlby Vthe upper portion of vthe carriage and having its lower end projecting` into the mouth of the bag.. The hopper 4l will be movably carried by the carriage, so as to enable an operator to lift it out of the mouth when the bag has been filled. ylhe hopper `4l is for this purpose carried upon arms 42 having shoes r43 for flanges 44 on the carriage standards l4.l

The device forl'iolding the upper end of the bau' in place and for holding the mouth open' is supported upon the tubular arms 45, which extend laterally from the carriage standards i4l and are braced by the diagonal bra t 4G. Upon these arms 45 is secured a rectangular frame 47, clearly shown in Figure 6. rllhe open 'rectangular frame 47 is reinforced by the diagonal braces 48. Two llides 49 and 50 are mounted at opposite nds of the rectangular frame and each such Aride carries a pair of clamp jaws for clampnp; the doubled thicknesses at opposite ond portions of the mouth of the bag. The fixed jiaws are lindieatr-id at 5l and the movable jaws at 52, such movable jaws being pivoted as indicated at 53 upon ,the slide plates and urged by coil springs l 4 into tight wedging engagement with the bag); material.l The movable or pivoted jaws are provided with tail pieces having); handles 55 by which the can be swung apart to release the bag.

The

slide plates

49 and 50 Vare movable toward and away from each other to provide for the holding' of bags of various sizes to permit initially 'ippingl the bag mouth when .in closed condition, but subsequently perniittingi of the opening. ef the bag mouth by the stretching apart of its sides as later re The slideI plates 49 and 5'() are erred to. provided with a number of sets of Agjrooved rollers 56 for engaging` upon opposite sides of horizontal ,euide rods 57, such guide rods beine' carried in angle clips 58 on the reclar frame and in upwardly extendingl 59 upon the opposite ends of the The lit)

`

companion jaws

67 and 68.

Ile

f so

over the inner sleeve 7 5.

Carrying the clamp jaws are drawn together, .thecoil spring 63 will be distended, so that when the slides are released these springs will tend to draw them to the outward position, shown in Figure 6. The springs 63 'subserve the further function of drawing" the bag ends outwardly or taut and serve to hold the bag mouth open.

Vhile the doubled endvportions of the bag mouthare held in the clamp jaws of these slides, the opposite side edges of the bag mouth are, as shownin Figure 2, rolled over in opposite directions about the

rounded jaws

65 and 66, to which the bag is held affixed, beca-use of the pressure of the These jaws are best shown in Figures 8 and 9 and the companion jaws 4at each side constitute side clamps which, with the end clamps above referred to, serve to hold the -mouth roit the -bag distended. The jaws 65 and '66 are preferably round in cross section to permit fof easily rollingthe ends of the bagthere over, while the

outer jaws

67 and 68 are of larger dimensions andv provided with concave or partially cylindrical sockets 69 in order to envelop a great area oit the bag about `the rounded jaw and toV encompass a Vrelatively greatarea of such companion aw, whereby greater hold will be secured upon the bag. The jaw 65 'is provided with a tongue 70,` as' shown .in Figures 6 and 8 along its centralr portion to fit within a groove 71 provided in a projecting rib 72 upon the opposite jaw 66. This tongue and socket arrangement is to initially clamp the bag-below the edges, while suchV edges are being rolled about the

jaws

65 and 66.

During this rolling process, the larger jaws 67 and V68 are drawn away from the

jaws

65 and 66 and for this purpose said rounded jaws are fixedly carried upon the supporting rods 7 3, while the outer jaws 67 and 68' are freely slidable over these rods 72 This construction is shown in Figure 9 wherein the

jaws

67 and 68 are shown as engaged by the Vflangesv 74 of sleeves 7 5, which slide freely over the rods 73. A coil spring 76 engages the flange 74.- at one end and a flange 77 at its'other endgwhich flange T7 is upona. second sleeve 7 8 slidable freely A coil spring 79 is Vwoimdabo'ut the outer sleeve 7 8 amL eni gages against the flange 77 at one end and` against a guide plate S0 at its other end. This guide plate is secured to the rectangular frame 47. The outer ends of the rods 73 are reduced and threaded to receive the locl; nut-s 81 and 82 by which these rods are secured to the cross pieces 83. The cross piecesare shown more particularly in Figure 6 as joining the two rods 73. The cross pieces 83 serve the further function of acting as abutments for the rollers or pins 84 on the ends of the curved hand levers 85, which locking 1 with the companion .trunnions ing uponthe handle 85, thezyoke piece 87 and its connecting jaw may be pulled outwardly away from the companion rounded jaw 65. The sides of the bag mouth are thus free to'be rolled about the jaws and 66 'whereupon the handles S5 are swung back to the positions, shown in Figure 6, whereupon the coil springs will torce the

jaws

67 and 68 back upon the

rounded jaws

65 and 66 and clamp the bag in place, as shown in Figure 2. lVhen the hand levers 8:3, are thus manipulated, the coil springs 76 only are compressed in thel actor'` drawing back the

larger jaws

67 and 68. These springs 76 again force the Ajaws Atogether when the hand levers 85 are released. The coil springs 79, however, are useful for forcing the one

jaw assembly

65, 67 yieldably toward the

other jaw assembly

66, 68. It is, of course, necessary that the two jaw assemblies be separated as indicated in Figure 6 vwhen the bag is to be initially put in place and also when the bag is tol be finally removed after filling. To this end the inner

rounded jaws

65 and 66, as shown in Figure 6, are extended V yshown in F iger-e 6, joins both of the pinions for simultaneous operation. i

ln Figure 6 is also shown a handle96 for manually operatingr this shaft 95. `The two pinions referred to are mounetd in housings 97 at Aopposite corner portions of the rectangular frame 47 and `these housings also provide suitable guide ways for the sliding of the rack bars 92 and 93.

As shown in Figure ll a latch 98 in the form of an arm pivoted to one of the trun- Qnions '90 is provided, having (

notches

99 and 100 in its lower edge for engaging .and inter- A handle'lOi -is provided upon `the free end of the latch for lifting the engaged notch out of the trunnious to permit the separation of'v the jaws'or the bringing of the same together.

As shown in Figure l in dotted lines a sewing mechanism is indicated as operating upon the bag while still in the holder.

In operation, theside jaw assemblies are separated as indicated in Figure 6 and the end jaw slides are in the outermost position also shown in` this figure. This condition isl brought about by operating the handle 9G to rotatethe pinions 94 and through the rack bars 92 and 93 separate such jaws. The latch 9S in Figure 1l will automatically drop in place and hold the jaw assemblies thus separated without further attention oii the part of the operator. i

This is desirable while securing the ends of the bag mouth in the end awscarried by the

slides

49 and 50. rl`he bag is therefore let down between the two jaw assemblies or inserted upwardly therebetween, the two walls of the bag near one end of the mouth are inserted between the jaws 5l and 52 at one end of the rectangularframe 4:7, the movable jaw 52 being swung back to admit the bag edge. Then released the movable jaw 52 due to the spring pressure exterted thereon will automatically hold the bag end. This operation is repeated at the other end by engaging the walls of the bag mouth in the two jaws of the opposite slide 50.

The side. ortions of the bao' mouth are now to be secured in the side jaw assemblies and to this end the jaw assemblies are initially moved together, by the lever 96, so

that the parts are brought into the condition shown in Figure 8. Here the tongue 70 and groove 7l construction will bind upon the bag, the intermediate portion of the bag mouth being lifted up before this clamping action takes place, so as tol leave adequate material for rolling about the jaws (35 and 66which operation is then performed, only of course after the

largerjaws

67 and 68 are withdrawn by manipulation ofthe hand levers 85. These hand levers are subsequently released to en( ble the springs 76 to again force the jaws together upon the overturned edges of the bag mouths, as shown in Figure 2.

It now becomes necessary to spread the mouth of the bag in order` to receive the material and for this purpose the lever 96 is again resorted to, by which the pinioiis 94. ai'e rotated and the side jaw assembled separated a sufficient distance. ,The latch 98 in Figure 1l will hold the parts in this distended position against the action of the coil springs 79 which restore the partsvto the closed position immediately after'lifting the said latch.

In the diagrammatic Figure l a possible installation of a number of carriages is slrown.- These Vcarriages .may be moved about the oval track indicated by hand or by appropriate mechanical power. .The various stations through which these carriages pass are indicated on the drawings. but it will `be understood that the operations may be performed at any desired stations.

It is obvious that various changes and modificationsmay be made in the details of construction and design of the above speciiiof, such changes and modifications being restricted only by the scope of the following claims. i

l/Vhat is claimed is z y Y l. A sack filer comprising a movable cariage, means thereon to support the mouth of the saclnaiid a vibrating platform on the carriage on which' the bottom of the sack continually rests. v d

2. A sack filler comprising a movable carriago, means thereon for holding the open end of the sack, and a platform movable on the carrhge foi'A continually supporting the bottoni of the sack only and movable relatively toward and from the mouth of the sack to jolt the contents of the sack, andA means for so moving said platform.

3. A sack iiller comprising a movable carriage having a vibratable lower portion,

means for subjecting said `lower portion. when the carriage is moving to vibration,

, portion of the cairiage.V

a. A sack iiller comprising ,a movable carriage, means on the carriage foi' holding the mouth of. the sack, and an oscillating platform on the' carriage for receiving the bottoni of the sack and for twisting the saine about the axis of thesack.

A sack iillei' comprising a wheeled carriage having a vibiatable lower portion, a track for the wheeled Vcarriage having an undulating portion, and means on the carriage for holdingthe mouth of theA sack with the lower portion of the sack continually supported by the lower vibrating portion' of the carriage. l 1

6. A sack iiller comprising a movable wheeled carriage having a vibratable lower portion, a track havingan undulating por-V 7. A. sack` iiller track raving an undulating port-ion, a Vcarriage having lower vibratable portion with wheels fitted to travely on said track, an oacilla'i'ng j'ilatforni on the lower vibratable comprising an je'ndless portion of the carriage, said platform adapted to oscillate in a plane atsubstantially right angles to `the plane of vibration of the lower carriage portion, means for subjecting the platform to vibration while the carriage travels over the undulating portion of tl .e track, and means on the carriage for holding the .mouth ofthe sack with the bottom thereof vresting upon said platform.

8. A sack filler comprising upper and ing an undultaing portion therein, a carriage having an upper fix-cd port-ion with wheelsfor traveling upon said upper track, and

having a lower vertically vibratable portion with wheels adaptedto travel upon the lower track, a horizontally oszci latable j ilatitorm on the lower portion of said carriage, means for oscillating said platform during the interval that the carriage is passing over the undulating part of the track, and means on the upper'portion oi the carriage for suspending a sack from the mouth with the bottom portion thereof resting on said platform. 9. A sackcliller comprising a track liavingan undulating portion, a carriage having wheels for engaging the track, `a platform ior receiving a bag on the carriage mounted for oscillating Ymovement, and means for engaging the supporting surface adjacent said track for causing oscillation ofthe platform when the carriage travcl ing the undulating portion of the track.

lO. A sack filler comprising a wheeledL carriage, a track having an undulating portion for receiving the wheeled carriage, an

oscillating platform on the carriage i'or re-l ceiving the sack, a pivot pin ior the oscillating'platform, a rock shaft journaled on the carriage beneath the platform, cornicetions between said rock shaft and pivot pin for rocking the same simultaneously, and a wheeled lever coupled to said rock sha'lt and engaging the horizontal supporting surface alongside said tracl': Ytor subjecting the plat form to an oscillating movement when the carriage is passing over said undulating portion oi the track.

11. A sack filler comprising movable clamps for holding the end portions ot the mouth oit a sack, means yieldably drawing said clamps apart, and'movable side clamps for receiving the side portions of the saclc month and adapted to draw said mouth. apart and to draw the end clamps together whereby to hold the mouth oi2 the sack d tended. f

l2. A sack filler comprising end clamps to hold the end portions oi the mouth oi the sack, side clamps t'or receivingr and holding the side portions oi the sack moutl said Side clamps having means for initially holding the sack while the side mouth portions thereof are being engaged with the side clamps, and means for moving said side clamps toward and from one another.

13. A sack filler comprising end clamps for holding the end portions of the sack mouth, means tor yieldably drawing said end clamps apart` movable side clamps -tor receiving and holding the side portions of the sack mouth, one of said, clamps having a tongue and the other oli' said clamps having a groove to receive said tongue whereby to hold the sack while the side portions thereof are being engaged with the clamps, and means :tor moving said side clamps toward and away from each other.

fr. A sack iller comprising means for f ig the end portions of the .mouth oi' the side clamps for holding the side porot the sack mouth, each of said side nps comprising a pair of jaws, one of h jaws being oi' substantiall round cross section to permit the rolling tiere about of the end portion of the sack, the other of said jaws having a partially cylindrfcal socket for receivir'v the companion round jaw, resilient means for urging said clamp jaws t0- gether upon the sach, and means for moving the two side clamps toward and away from each other.

1F. A sack liller comprising means for holding the end portions ot the mouth oi' the sack, side clamps movably mounted iior receiving the side portions ot the sack mouth, means for moving said side clamps toward and from each other, means for yieldably urging the side clamps together, and a latch n fans ior holding the side clamps apart.

16. A ililler comprising means for holding the end portions of the sack mouth, movable side clamps'ior receiving the side portions ot the sack mouth, each ot said side clamps comprising` cooperating jaws movable relatively, yicldable means :tor Yiorcing the jaws together, and yieldable means operated with said last named means lor urging the side clamps together upon the sack mouth.

17. A sacl; filler comprising means for holding the end portions of the sack mouth, a pair ot side clamps for receiving the side portions o' the sack mouth, each of said side clamps comprising cooperating relatively movable jaws, movably mounted rods t'or holding one ot said jaws, the other oft' said jaws being slidably mounted on said rod, .ldable means on the rod tor both urging tbe two jaws oil each side clamp togetlier and also tor yieldably urging the clamps as a whole to 'ard one another, and means tor shitting tlie side clamps apart.

gaat

i8. A liao' Eller comin'isinoV means for tu 1 i s; holding the eno poi-tions ot the bag mouth,

said clamps for holding the side portions or he bag mouth, each ot said side clamps eomprising a pair oilf cooperating for receiving the bag material therebetween, movably mounted rods connected to one of the jaws, the other oit sa'd jaws slidingr on said rods, sleeves loosely extending over said rods and having flanges abutting` against the last mentioned jaws, second sleeves slidably mounted on the last mentioned sleeves and having flanges thereon, coil springs wound about the iii-stY mentioned sleeves between the two flanges, fixed abutments, coil spring wound about said second sleeves between the flanges llo slides for engaging the end portions of theA Y :sack and for maintaining the same under tension, and movable means `lor holding the side portions of the mouth of the sack.

20. A sack filler comprising a pair of movably` mounted slides adapted to be shifted toward and from each other, yieldable means Jior maintaining the slides apart, Clamp jaws for receiving and holding the end portions of the mouth of the sack, inov-r ably mounted side clamps shiiftable in diiecf tions at substantially right angles to the direction oit movement oi' said slides and tor engaging the side poi-tions ot the sack mouth, and means r'or shitting said side clamps towardand 'trom one another.

2l. A sack filler comprising clamp means `for holding the end portions oi' the mouth oi a sack, side clamps or holding the s de portions ofthe sack mouth, rack bars coupled to said side clamps, connected pinions for meshing with said rack bars, "and means for simultaneously shitting said Ipinions .and 'rack bars whereby to open and Close said side clamps. Y

22. A sack filler comprising clamp means for seeming the end portions of the mouth o't a sack, movable side clamps for engaging' the side portions of the sack mouth, opposed rack bars secured to the end portions of said side clamps, eonneetedjpinions meshing with said op'posedrack bars, means for rotating said pinions, and a latch pivoted to one clamp member and adapted to engage with Athe other clamp vmembers to hold the clamp members either together or apart.

23. A sael: iller comprising oarriaga'a Vtraek for the carriage havingr an undulating portion, means 'for holding the mouth of the sach in open position, a movable mounted hopper on the carriage above the sack, an oscillating platform on the carriage below *aid means `and tor reeeivingjT the ybottom of the sack, and means for oscillating said platform when the carriage is :passing over the undulating part of the track.

`ROBERT LEE GALLAHAN.