US1675450A - christensen - Google Patents

Description

Jul 3, 192a. 1,675,450

N. V. CHRISTENSEN FILLED BAG SEWING MACHINE Filed D80. 17, 1923 10 Sheets-Sheet 1 July 3, 1928. 1,675,450

N. v. CHRISTENSEN FILLED BAG SEWING MACHINE Filed Dec. 17, 192:5 Sheets-Sheet 2 July 3, 1928. 1.615.450

N. V. CHRISTENSEN FILLED BAG SEWING MACHINE Filed Dec. 1'7, 1923 10 Shams-Sheet 3 July 3, 1928. 1,675,450

N. V. CHRISTENSEN FILLED BAG SEWING MACHINE Filed Dec. 17, 1923, 10 Sheets-Sheet 4 July 3, 1928.

N. V. CHRISTENSEN FILLED BAG SEWING MACHINE &

10 Sheets-Sheet 5 &

Filed Dec. 1'7, 1923'.

July 3, 1928.

N. V. CHRISTENSEN FILLED BAG SEWING MACHINE Filed Dec. 17, 1923 10 Sheets-Sheet 6 July 3, 1928.

N. V. CHRISTENSEN FILPED BAG SEWING MACHINE Filed Dec. 17, 1923 10 Sheets-Sheet (Hanna 5 FILLED BAG SEWING MACHINE Filed Dec. 17, 1925 10 Sheets-Sheet 9 July 3, 1928. 1,675,450

N. V. CHRISTENSEN FILLED BAG SEWING MACHINE Filed Dec. 17. 1923 10 Sheets-Sheet l0 Patented July 3, 1928.

NORMAN V. CHRISTENSEN, OF CHICAGO,

ILLINOIS, ASSIGNOR TO UNION SPECIAL MACHINE COMPANY, OF CHICAGO, ILLINOIS, A CORPORATION OF ILLINOIS.

FILLED-BAG-SEWING MACHINE.

Applicatipmfiled December 17, 1923. Serial No. 681,263.

The invention relates to new and useful improvements in sewing machines, and more particularly to a. sewing machine for closlng the mouth of a filled bag.

In my prior application, Serial No. 526,116, filed December 31, 1921, I have shown a sewing head having stitching mechanism for closing the mouth of a filled bag, which sewing head is mounted on a carrier adapted to travel back and forth on tracks, so that the filled bag while resting on the stationary support, may be closed by the traveling sewing head, the motor for operating the sewing head also being mounted on the carrier and traveling therewith.

In my application Serial No. 535,334, filed February 9, 1922, I have shown a filled bag sewing machine similar to that of my earlier application, but arranged so that the sewing head passes back and forth over the platform of weighing scales, so that the filled bag may be weighed, and while on the platform of the scales, where it has been weighed, the mouth thereof may be closed by the traveling sewing head.

The present invention is directed to an improvement in my prior filled bag sewing machine, and has for its principal object to provide an arrangement whereby the sewing head may be positively driven across the mouth of the bag while it is being stitched, and whereby the sewing head may be disconnected from its positive driving mechanism and returned by gravity to its original starting position.

Another object of the invention is to provide means under the control of the operator whereby the motor which is mounted on the traveling carrier forthe sewing head may be first connected to the carrier for driving the same forward to a point where the stitching is to begin, after which, by depressing the control to a further extent, the stitching mechanism will be thrown into operation.

A further object of the invention is to provide tracks on which the carrier for the sewing head and motor travel, which tracks are so arranged that they may be set in horizontal position or in inclined position, so that said tracks may be substantially horizontal during the stitching operation and may be quickly placed in inclined position, so that advantage may be taken of gravity for returning the carrier to its initial starting position.

Another object of the invention is to provide a machine of the above type wherein the tracks are raised to tilting position by the carrier in its forward movement, and wherein the tilting of the tracks automatically releases the carrier from its connection with the motor so that the carrier is free to return to initial starting position.

Still another object of the invention is to provide a machine of the above type with controlling devices which operate to return the tracks to normal horizontal position through the momentum of the carrier as it returns to its initial starting position.

These and other objects will in part be obvious and will in part be hereinafter more fully disclosed.

In the drawings which show by way of illustration one embodiment of the invent1on Figure l is aside view of a machine embodying my improvements, certain parts being sectioned and broken away to show more clearly the structure;

Fig. 2 is a front view of the machine;

Fig. 3 is a side view from the other side of the machine from that shown in Fig. 1;

Fig. 4 is a rear view of the machine;

Fig. 5 is a plan view of the machine;

Fig. 6 is a view showing devices which may be utilized as a support for small bags when stitching the same;

Fig. 7 is a transverse sectional view through the supporting carrier and tracks therefor, and showing the operating shaft for the carrier and the sewing head, and also the contro-llingmemis for connecting these parts to the motor;

Fig. 8 is an enlarged sectional view through the transverse shaft and the clutch members associated therewith;

Fig. 9 is a detail showing one of the stops and cushioning devices for limiting the movement and supporting the tracks when in lowered position;

Fig. 10 is an enlarged detail showing the means for raising the tracks to tilted position, the tracks inthis view being in lowered position;

Fig. 11 is a sectional view on the line 1111 of Fig. 10, and showing in dotted lines the tracks raised to inclined position, the track supporting plate and the limiting arm being shown in full view;

Fig. 12 is a detail showing the arm controlled by a. treadle for operating the control bar;

Fig. 13 is a plan view of the same, and

Fig. 14 is a detail showing the means for releasing the clutches when the track is moved to inclined position.

The invention is embodied in a machine which includes broadly, spaced supporting standards which are mounted on suitable rollers or casters so that they may .be readily moved about from one place in a mill to another. These standards are spaced a proper distance so as to permit weighing scales to be placed between the same, which are likewise mounted on casters or rollers so that the whole apparatus is readily portable. These standards are connected by suitable cross bars intermediate their ends so as to form a rigid frame. The standards are also made in adjustable sections so that the upper portions may be raised and lowered at will by the operator.

Pivotally mounted on one of the standards is a track structure on which a carrier travels back and forth. This carrier supports the sewing head which is so mounted on the carrier as to overhang the platform of the weighing scales so that the bag after it has been weighed may be readily stitched by the traveling sewing head.

A motor is also mounted on the traveling carrier, and is connected to the sewing head for actuating the same. There is a cross shaft mounted on and traveling with the carrier which is provided with a loose pulley operated from the motor shaft, and with a worm wheel also operated by suitable connections with the motor shaft. This worm wheel is loose on the shaft. A friction cone member splined to the shaft is adapted to engage the worm wheel Which is continuously moving, and thus connects the transverse shaft with the motor shaft. This transverse shaft carries a driving gear meshing with a rack on the supporting track structure, and causes the carrier to move from one end of the track to the other. There is a second pulley loose on the transverse shaft and operated by a belt from the motor shaft. A second friction cone is loosely mounted on the shaft and adapted to be brought into engagement with this loose pulley, and this cone clutch member is connected by a suitable belt to the main shaft of the sewing head.

Clutch controlling members are provided which are constructed and arranged so that when the operator places his-foot on the treadle or controlling device for these clutch members, the worm gear will be first connected to the transverse shaft and cause said transverse shaft to rotate, and thus cause the carrier for the sewing head and motor to bodily move along the tracks. When the sewing head reaches the point to begin the stitching on the mouth of the bag, a further depression of the treadle will connect up the belt wheel on the transverse shaft with the sewing head and thus the stitching mechanism will be operated by the motor.

The treadle is connected to a transverse shaft which in turn is connected to the clutch members in a manner which will be described in de ail for actuating the clutch members to connect up the motor to the parts to be actuated thereby, and which will release the motor from these actuated parts when the t-readle is released.

As a means for tilting the tracks, I have provided a means actuated by the traveling carrier, which raises the tracks to a tilted position, lifting the mot-or, sewing head and carrier as the tracks are tilted. Devices are also provided so as to automatically disconnect the motor from the mechanism which causes the carrier to move forward provided the operator fails to release the treadl'e at the proper time. The carrier, therefore is released from the motor and is free to return, and-the tilting of the tracks causes it to roll down the inclined tracks to its starting point. When the carrier reaches its starting point, it automatically releases the tracks so that the same will be brought back to horizontal position through a the weight of the carrier and the parts mounted thereon.

Referring more in detail to the drawings, my improved machine includes a supporting frame consisting of spaced standards 1 and 2. Each standard is carried by a base member 3 mounted on rollers4-4. Each standard is also provided with an upper section 5-5 which telescopes in the lower section of the standard, and the upper section is raised and lowered by means of gear wheels 6, one for each standard, meshing with a rack bar 7 formed as a part of the upper section of each standard. The standards are connected by cross bars 8 and 9 which form a rigid frame structure. At the upper end of the standard 1 there is a supporting head 10, while at the upper end of the standard 2 there is a supporting head 11.

The track structure indicated at 12 in Fig. 2 of the drawings, is pivoted at 13 to the supporting head 10, while the other end of the track structure is capable of being raised and lowered toward and from the supporting head 11. Mounted on the track structure 12 is a carrier 14. A sewing head 15 of the usual construction is mounted on a depending bracket portion 16 rigidly supported by the carrier 14:. Also mounted on the carrier 14 is a motor 17.

The frame structure consists of a U bar track member 18 which extends from one end of the machine to the other. Said U- shaped track member 18 is rigidly secured to a hinged member 19, and this hinged member 19 is secured by the pivot 13 to the supporting head 10. At the other side of the machine there is an inverted T-shaped track member 20 which is secured to a hinged member 21 which is in turn pivoted by means of a pivot 22 in a line with the pivot 13 to the supporting head 10. These tracks are connected at the opposite end from their pivotal supports to a plate 23. This forms a rigid track structure on which the carrier 14 is adapted to travel. Said carrier is provided with two rollers 2-1, 24, which are adapted to run on the inverted T-shaped track member 20. These rollers are at the rear side of the carrier. At the forward side of the carrier there is a single supporting roller 25 (see Fig. 7) which runs on the lower member of the U-bar track member 18.

It will be understood, of course, that these rollers are carried by suitable bearings formed on the carrier and operate to support the carrier so that it can travel back and forth. Mounted within the U-bar track member 18 is a rack bar 26.

There is a transverse shaft 27 mounted in the carrier and extending from the rear side thereof to the front side thereof. Said shaft 27 serves as a supporting means for the roller 25 which is freely mounted thereon and also carries a gear 28 which is adapted to mesh with the rack bar 26 so that when the shaft 27 is rotated, the car rier will be positively moved along the tracks through the engagement of this gear with the rack on the U-bar track member 18. The roller or wheel 25 is freely mounted on the shaft 27. The gear wheel 28 meshing with the rack will pull on the carriage so as to move the shaft 27 bodily and this will cause the roller 25 to roll along the track, turning, of course, in the opposite direction from that of the gear wheel 28.

This transverse shaft 27 is provided with a worm gear 29 which is freely mounted on the shaft (see Fig. 8). This worm gear meshes with a driving gear 30 on a shaft 31 carried by a bracket 32. A belt wheel 33 mounted on the shaft 31 is operated by means of a belt 3% from a belt wheel on the end of the motor shaft 36 of the motor 17.

It will be noted that this motor 1.7 is secured to the upper face of the carrier by suitable bolts 3T. 37, which rigidly secures the motor to the carrier. This worm gear 29 is continuously driven while the motor is in operation. Splined to this shaft 2" is a friction cone 3S. Said friction cone is capable of moving endwise on the shaft. but any rotation imparted to the cone will in turn be imparted to the shaft 27. The cone is capable of moving endwise compressing a spring 39 so as to make contact with the cone surface 40 formed on the Worm gear,

and thus it is that when this friction cone 218 is moved into driving connection with the gear 39, the shaft 27 will rotate with the gear, and when pl'cssurc is released from the cone nit'nibcr Jib, tho spring 39 will sepa rate the driving surfaces so that the shaft :27 will cease its rotations.

This shaft. If is mounted in bearings -ll and 42. one of which is carried by the sidiwall of the carrier ll. while the other is carried by a bracket arm 43 depending from the upper portion of the carrier.

Mounted loosely on this shaft 27 is a b lt wheel 44' which is connected by means of a belt 15 to the motor shaft so as to be coir tinuously rotated thereby while the motor is in operation. Associated with thisbelt wheel it is a pulley to which is connected by means of a belt 17 to the main belt wheel 18 of the sewing head. Said belt 47 runs over idlcrs it). t.) on its way to the sewing head. This pulley has a friction cone ctutch suriacc 50 which is adapted to coop erate with a friction cone clutch surface 51 on the belt wheel 1a. A spring 52 normally holds these clutch surfaces separated. When, however, the pulley do is movcd endwisc on the shaft so as to bring the clutch surfaces into contact. then the motor will, through the pulley to and the belt 4i" opcrate the sewing head.

The pulley 46 is moved into driving contact with the belt wheel ft by means of a lever 53 which carries a. headed screw .11 having a rounded surface adapted to make contact with the outer rounded surface of the pulley sit and hold these parts in driving connection while they rotate. This lever 53 is pivotally mounted by the depending bracket portion to of the carrier. A shaft 55 extends through the lever and the bracket portion of the carrier and has a splined connection with the lever 53. This shaft 5.1 is mounted in suitable bearings 56 and in" carried by the main track structure. The carrier and the lever 53, therefore, will move along this shaft. but any oscillation of the shaft will oscillate the lever 53. The clutch member 38 is operated by a lever 8. This lever 58 is pivoted at In) to the depending portion 16 of the carrier. Said lever :38 is connected to the lever 53 by a link (it) formed of two telescoping parts. A spring 61 surrounds the part which moves into its associated sleeve and nuts (32 serve as an adjust able abutment for the syn-lug.

It will readily be seen from the description, that the lever 53; may be moved so as to move the lever 58 to cause the clutch member 38 to engage the clutch surface on the worm gear 29, and these parts may be brought into engagement before the lever is moved sufficiently far to cause the pulley 16 to clutch up with the belt wheel 44. Thus it is that the carrier may be caused to move along the tracks before the sewing mechanism is operated. A further movement of the lever 53, which is permitted by this yielding telescoping link 60, will cause the driving pulley 17 to clutch up on the belt wheel 14 and drive the same. hen the lever 53 is released. then the springs 52 and 39 will cause these clutch members to separate and thus release the carrier, as well as the stitching mechanism from its driving connection with the motor.

The shaft 55 is under the control of the operator through the following devices. The shaft. 63 is mounted in suitable bearings 6t, 64 carried by one of the base members 3. This shaft has a foot treadle (35 on its forward end which is readily accessible to the operator standing in front of the machine. Said shaft (53 also carries an upwardly extending arm 66 cooperating with arm (37 mounted on a vertical shaft 68. Vhen the shaft 63 is oscillated by depress ing the treadle or releasing the treadle. this arm 66 will impart to the shaft (38 an oscillation. The shaft 68 is mounted in bearings (39. 69 carried by the standard 1. Said shaft extends to a point above the supporting head 10. A bracket 70 is carried by said supporting head 10. and loosely mountcd in said bracket so as to turn therein is a sleeve 71 carrying an arm 72. The sleeve 71 is provided with a rectangular opening' as clearly shown in Fig. 13 of the drawings. This rectangular opening is shaped so as to fit the shaft 68 which is rectangular in cross section. The purpose of this bracket 70 and this supporting sleeve for the arm 72 is to permit the supporting head 10 to be raised and lowered with the upper section of the standard. and still maintain an operative connection between the arm 72 and the vertical shaft (38 which. of course. does not move up and down when the parts are adjusted. This arm 72 is connected by means of a link 73 to a depending arm 7st which is fixed to the shaft 55.

It will be noted that when the treadle is depressed. the shaft 68 will be oscillated and this shaft will in turn oscillate the shaft 55. Thus it is that the operator by depressing the treadle. may connect up the clutch members. and when the treadle is released. the springs referred to above will separate the clutch members.

My improved machine is particularly adapted for stitching a filled bag after it has been weighed. The standards 1 and Q are spaced from each other and connected near their lower ends only by the cross bars 8 and 9. and the cross bar 9 is raised a considerable distance from the lower end of the standards so that the ordinary weighing scales may be placed in rear of the machine with the platform extending underneath this lowermost cross bar as clearly shown in Figures 4 and 6 of the drawings.

The scales include the usual supporting base 75 mounted on suitable rollers or castcrs 76 so that it may be readily portable from one portion of the mill to another. and mounted in the base is a suitable sup porting means for the usual platform 77 of the weighing scales. Rising from the supporting base is a column 78 which carries a scale beam 79. The usual brace 80 is provided. These parts are of the usual construction, and do not need further description.

It will be noted that the scale platform is directly beneath the sewing head (see Fig. 1). and that the sewing machine as it travels along the track wit-h the carrier on which it is mounted. will move across the platform of the weighing scales, and thus it is that the mouth of the bag resting on the scales may be stitched. It is sometimes desirable to stitch smaller sacks, and I have provided an adjustable support consisting of a lower member 81 and an upper member 82 which telescopes on to the lower member 81. The lower member is provided with a series of openings 83 in which the pin. of a bracket 81 can be inserted. There are two brackets. one at each side. and these serve to support the upper member By adjusting the pin brackets from one hole to another. the support may be varied in height so as to suit the size of bag which is desired to be stitched.

As has already been described, the track structure is pivoted on the pivot bolts 13 and and is adapted to be raised to tilted position on these supporting pivot-s. The supporting head 11 is provided with laterally projecting arms 85. These arms are each provided with a stop screw 86 which threads through a sleeve 87 mounted at the outer ends of the arms 85. A set nut 88 may be used for locking the screws in their adjusted positions. The plate 23 which connects the two tracks on which the rollers of the carrier run. is adapted to engage these stop screws and rest thereon. The weight of the carrier. of course. tends to depress the right-hand end of the track structure as viewed in Fig. and this brings the plate into contact with these stop screws. There is a bracket member 89 secured to the upper face of this plate on which the U bar 18 is secured (see Fig. 1). The track 20 is secured to the plate direct.

As a means for raising the free end of the track structure, 1 hawc provided a swinging bracket 90 on which are mounted rollers 91. 91. adapted to engage the under face of this plate 23. This bracket 90 is provided with perforated arms 92. 92, which are journaled on pins 93. These pins 93 are each carried by a bracket 94 and are held in the bracket by a set screw 95.

A control rod 96 is secured to the bracket 90 by means of a pivot pin 97 which passes through ears carried by the bracket, and the end of the rod 96 is located between these cars. \Vhen the rod is pushed to the left as viewed in Fig. 11, it will bring the bracket arms 92 to an upright position (see Fig. 11), and this of course, will raise the rollers 91 and lift the free end of the track structure. An arm 98 is rigidly secured to the supporting head 11 and is provided with a stop screw 99 which limits any further movement of these bracket arms 92. The free end of the track is now raised and the tracks are inclined. This rod which operates to raise the free end of the tracks is provided with a stop collar 100 which in turn is provided with a buffer 101. This rod 96 extends through a rib 102 forming a part of the depending bracket portion 16 of the can rier. \Vhen the carrier moves to the left as viewed in Fig. 4, this rib 102 will strike the collar 100 and move the rod 96 to the left, thus raising the tracks. The carrier is driven by a motor and therefore, it is the movement of the carrier actuated bv the motor which lifts the free ends of the tracks to inclined position. The operator watching the machine, is supposed to release the treadle when the ends of the tracks come up and thus release the carrier from the motor so that the carrier is free to run down the inclined tracks to its normal starting position. If, however, the operator does not release the treadle, the carrier will still be released from the motor by reason of an automatic control consisting of an arm 103 fixed to the control shaft 55, and a rod 104 carried at the outer end of said arm and depending therefrom, and passing through an opening in a bracket piece 105 which is rigidly connected to the supporting head 11. A out 106 on the lower end of this rod may be moved to different set positions, and it will be noted that when the track raises, the rod 104 will move up through the bracket piece 105 until the nut 106 engages the lower face thereof, after which the rod can move no further and this will move down on the arm 103 and turn the shaft so as to release the clutches.

'hen the clutches are released, then the carrier runs down the inclined track to normal starting position. There is another control collar 107 on the rod 96 provided with a similar buffer 101. The rib 102 on the carrier striking this sleeve 107 will swing the bracket arm 92 so as to move the rollers to the position shown in full lines in Fig. 11, and this will allow the free end of the track to drgip through the weight of the parts sup porte thereby.

It will be understood, of course, that the sewing head and the carrier move from left to right as viewed in Fig. 2. The bag is placed on the weighing platform of the scales and weighed. After it has been weighed and is ready to be stitched, the operator depressing the treadle will clutch up the worm gear 29 with the motor and this will drive the carrier forward. The sewing mechanism, however, is not yet operated and it is not desired to operate the same until the sewing head reaches the point where the stitching should begin. When this point is reached, then the operator by depressing the treadle to a further extent, will couple up the pulley 46 with the motor, and this will operate the stitching mechanism.

It will be noted that I have, in a sense, a dual drive actuated through a single control by the operator, which, when depressed to a certain extent operates the carrier, and to a further extent, operates the sewing mechanism. The operator keeps the treadle depressed, and the carrier moves along the tracks while the bag is being stitched. The stop collar 100 is so set that when the stitching of the bag is completed, the carrier will engage this stop collar and will push the rod endwise. and through the brackets 92 will raise the track to inclined position. At the same time, if the operator has not released the trcadle, the control shaft 55 will be forcibly turned by means of the depending rod 104 so as to release both clutches. This not only stops the stitching mechanism, but disconnects the carrier from the motor so that the carrier is free to run down the inclined track, which it does, until it engages the stop collar 107.

The momentum of the carrier as it runs down the inclined tracks will move this stop collar and the rod to which it is attached to the left, as viewed in Fig. 2. Through this operation, the tracks are released so that the weight of the parts carried thereby will lower the same to horizontal position ready for the moving of the machine forward again for stitching another bag.

When the tracks return to this lowered position, they are received first by cushioned springs 108 mounted in sleeves 109 carried by the arms 85 of the supporting head 11. These cushion springs allow the track to gradually settle on to the stop screws 86 and prevents any sudden jar which might injure the parts. The strength of the cushion springs can be varied by means of abutments 110 which are threaded into the sleeves 109 and are held in adjusted positions by nuts 111.

\Vhile I have referred to the tracks as being in horizontal position, when the carrier moves forward for stitching the bag, it will be understood that the stop screws 86 on which the track structure rests can be lowered so that when the carrier loaves forward,

the tracks will be sli htly inclined downwardly and this will aid in the easy moving of the carrier forward.

It will be apparent from the above det-cription that I have provided a filled bag :ewing machine wherein the sewing head travels in a stilretantiallv strz ight horizontal line during the --i itching ol the bag, after which it brought to a position where it travels in an inclined line moving downwardly toward its starting position, so that the vele o movement for the stitching head is forward in a horizontal plane. thence upwardl and tinall v I'tttiWYtll'tllf f along a line inclined to the horizontal to its original starting point.

It will be noted that the rack bar 26 which is engaged by the gea' 28 which propels the carrier back and torth lr; secured to the upper flange ot the U-har ttmning the track. The v-ieight of the carrier at the front side thereof is carried by the roller 25. These machines are intended tor stitching tilled bags, and are used in mills where there is much dust in the air, and it is a great advantage to have the, rack har up side down so as to lteep the du t and dirt from collecting hetween the teeth of the 'aclt bar. In other words. by the arrangement shown in the drawings. the rack har is kept clear of obstructing material so that the -arrier travels back and l'erth ver easily.

It is ohvionse that minor changes in the details of con ruction and the arrangement of the parts ma he made without. departing l'rom the spirit ol' the invention as set l'orth in the appended claims.

Having thus described the invention. what I claim as new and desire to secure by Let ters-Patent. is

1. In a tilled hag sewing machine. the co ihination of a track. a carrier nay-cable along the track. a :ewing heal naunted on the carrier. means for actuating the revv ng head. and mean wherel v said trial; may he placed in a sul)stantiall, horizontal pthr tion during the stitching ot' the bag and raised so as to incline downwardly for returning the sewing head to starting position.

:2. In a tilled hag sewing machine. the combination of a track. a carrier movable along the track. a sewing head mounted on the carrier. a motor mounted on the carrier and movable therewith tor actuating sewing head. and 2ne::ns wherehy sai'l track may he pla ed in a srhstantiallv horizontal psition during the stitaltlltff ot the h: 11' and raised so as to incline downwardly tor returning the st\ ing head to starting pos tion.

3. In a tilled lag sewing machine. the co-n hination ot a track. a carrier movahle along the track. a sewin head mounted on mount d on the carrier. trans actuated hv the motor for op ra mg the sewing head. llititll operated h the motor to" moving the carrier in one direction. and devices operated by the movement of the 'arrier 'l'or tilting the track so that the carrier when disconnected from the motor will return to starting p sition.

I. In a tilled bag sewing machine. the combination of a track, a carrier movable along the track. a sewing head mounted on the carricr. a motor mounted on the carrier. means actuated hy the motor for operating the sewing heatl. means operated b the motor for moving the carrier in one direction. and de vices operated by the movement ol the *arrier for tilting the track so that the c: rr'er when disconnected from the motor will return to starting position. said carrier operating upon said tilting devices when th -arrier reaches starting position for lowering; the tracks.

In a tilled hag sewing machine. the combination of a track. means tor pivotally supporting one end of said traclt. on which pivot said track may he moved from snhstantiallv horizontal to inclined position, a carrier adapted to move along the track. a sewing head mounted on the carrier. said track being horizontal during the stitching ot thbag. and devices t'or inclinin 'r; the track so that the arrier will return hv gra ity to its starting point after the bag is stitched.

3. In a filled bag sewing machine. the comhination of a track. means fo pivotall supporting one end of said tra-k. on which pivot said track may he mov d tr'nti snh tantiall v horizontal to in lin position. a carrier adapted to move along the a sewing head mounted en the carrier. sa d tracl; l'reing hori'amtal during stitching ot' the bag. devices for iaelin so that the carrier will r turn p to its starting point a titer the bag i tit-lied. a motor mounted on the carrier and n ovah -e therewitln and devices actuated lo; th inwter for positive];' moving the carrier th track while horizontal. and tor the track and releasing the tttot t rier so that the *arrier may return it v to its initial starting position.

7. In a tilled bag sewing machine. th combination of a track. means tor pivot supporting one end of said trail-L. on wh pivot said track ma) he in ved m stantiallv horizontal to inclined ign tion a carrier adapted to move along the trench. a sewing head mounted on the ar track heing horiz ntal dnrinti' the of the bag. devices for inclinin th tracli so that the carrier will return by to its starting point utter the l T a motor mounted on the ("12".1tt' ant; =aovable therewith. and device e ttr'ted h: th motor for positively moving the an along the tracl while horizontal a d ta ing the trncl; and releasing the m1: 2: 5:;

said

lie

the carrier so that the carrier may return by gravity to its initial starting position, said carrier operating autoi'natically to lower the tracks to horizontal position when it reaches starting position.

8. In atilled bag sewing machine, the combination of a track, means for pivotally supporting the track at one end thereof whereby the same may be moved about the pivot from horizontal to inclined position, a carrie' adapted to move along said track, a sewing head mounted on the carrier, a motor mounted on the carrier, devices actuated by the motor for moving the carrier along the track, causing said track to he tilted. releasing the carrier from the motor, and stopping the stitching mechanism whereby said sewing head while idle will return by gravity to its starting position.

9. In a tilled bag sewing machine, the combination of a track adapted to be placed in horizontal or inclined position, a carrier movable along the track, a sewing head mounted on the carrier, a motor mounted on the carrier, a transverse shaft supported by the carrier and having means for moving the carrier along the track when said shaft is rotated, means operated by the motor for actuating said transverse shaft for propelling the carrier along the track while in horizontal position, and devices operated by the carrier for tilting the track after the bag has been stitched for returning the carrier to starting position.

10. In a. filled bag sewing machine, the combination of a track adapted to be placed in horizontal or inclined position, a carrier movable along the track, a sewing head mounted on the carrier, a motor mounted on the carrier, a transverse shaft supported by the carrier and having means for moving the carrier along the track when said shaft is rotated, means operated by the motor for actuating said transverse shaft for propelling the carrier along the track while in horizontal position, devices operated by the carrier for tilting the track after the bag has been stitched for returning the carrier to starting position, means operated by the motor for actuating the sewing head, and devices operated by the carrier for disconnecting the motor from the sewing head when the track is tilted.

11. In a tilled bag sewing machine, the combination of a track, a. carrier adapted to move along the track, a sewing head mounted on the carrier, a motor mounted on the carrier and movable therewith, devices including a clutch for actuating the sewing head from the motor, devices including a clutch for actuating the carrier from the motor, a treadle controlled means for operating the clutches, said last-named means being constructed and arranged so that the carricr may be positively driven to the point where it is desired to-begin the stitcl'iing. after which the clutch for the sewing head may be operated to start the stitching.

12. In a filled bag sewing machine, the combination of a track adapted to be moved from horizontal to inclined position, a carrier movable along the track, a sewing head mounted on the carrier, a motor mounted on the carrier, devices including a clutch for no tuating the sewing head from the motor, devices including a clutch for actuating the carrier in one direction from the motor, and treadle controlled means for controlling the clutches, including devices whereby the carrier may be driven independently of the sewing head for bringing the sewing head to proper stitching position, after which the stitching mechanism may be set into action.

13. In a tilled bag sewing machine, the combination of a track, a carrier movable along the track, a sewing head mounted on the carrier, a motor mounted on the carrier, devices including a clutch for actuating the sewing head from the motor, devices including a clutch and a reduction gear for actuating the carrier from the motor, and treadle actuated devices for controlling the clutches, said devices being constructed and arranged so that the carrier may be operated independently of the sewing head.

14. In a filled bag sewing machine, the combination of a track, a carrier adapted to move along said track, a sewing head mounted on said carrier, a motor mounted on said carrier, a transverse shaft mounted on said carrier, a rack bar mounted on the track, a gear carried by the transverse shaft and meshing with the rack bar, devices including a clutch for operating said transverse shaft from said motor, and devices including a clutch for operating the sewing head from the motor, said rack ha being inverted and engaging the upper side of the gear on the transverse shaft.

15. In a filled bag sewing machine, the combination of a track, a carrier adapted to move along said track, a sewing head mount ed on said carrier, a motor mounted on said carrier, a transverse shaft mounted on said carrier, a rack bar mounted on the track, a gear carried by the transverse shaft and meshing with the rack bar. devices including a clutch for operating said transverse shaft. from said motor, devices including a clutch for operating the sewing head from the motor, and treadle actuated means for control ling the clutches constructedand arrangcdso that when the treadle is depressed a limited distance, the carrier is connected to the motor, and upon depressing the treadlc, a further distance, the sewing head is connected to the motor.

16. In a filled bag sewing machine, the combination of a track including spaced raiis, a carrier having a pair of supporting INT) wheels running on one of said rails. a trans verse shaft mounted on said carrier. a roller carried by said transverse shaft and running on the other rail. a rack bar carried by the front rail. a gear wheel mounted on the transverse shaft and meshing with said rack. a sewing head mounted on the carrier. a motor mounted on the carrier. devices including a tttltttftifll] gear and a clutch for operating the transverse shaft from the motor. dev ces including a clutch for operating the sewing head from the motor. and treadle opt-rated devices for controlling the clutch for the sewing head. and yielding devices actuated by said sewing head controlling devices for controlling the clutch for the transverse shaft. said fielding oevices being so constructed as to tirst close the clutch for the transverse shaft.

1?. in a tilled bag sewing machine. the coml'iination of a tract; including spaced rails. a carrier having a pair of supporting wheels running on one of said rails. a trans verse shaft mount d on said carrier. a roller carried by .--aid tra shaft and running on the other rail. a rack bar carried by the front rail. a gear wheel mounted on the transverse shaft and meshing with said rack. a sewing head mounted on the carrier. a motor moun ed on the carrier. devices including a reduction gear and a clutch for operating the transverse shaft from the motor. devices including a clutch for oper ating the sewing head front the motor. and treadle operated device for actuating the clutches con trtuted and arranged so that the operator may connect the carrier with the tnotor without connecting the sewing head to the motor.

t8. In a tilled hag sewing machine. the combination of spaced standards. cross bars cmna-eting said standards. a track pivoted to one .--tandard and adapted to freely rest on the other standard. a carrier adapt ed to move along said track. a sewing head mounted on the carrier. a motor mounted on the carrier and connected to the sewing head for operating the same. and devices under the control of the operator for raising the free end of the track after the bag has been stitched so that the carrier will re turn by"gravity to starting position.

'19. in a tilted hag sewing machine. the tinnbination of spaced standards. cross bars connecting said stan ards and arranged so that the platform of weighing scales may be placed between the standards. a track pivoted to one of said standards and resting freely on the other and extending over the position of the platform of the weighing scales. a carrier movable hack and forth on said track. a sewing head depending therefrom and adapted to pass over the weighing platform and stitch the tilted bag resting thereon. a motor mounted on the carrier. devices including a clutch for actuating the sewing head from said motor. and devices for raising the track to tilted position after the sewing of the bag has been tinished for returning the carrier to starting position.

20. In a filled bag sewing machine. the con'ibinatitm of spaced standards, cross bars connecting said standards and arranged so that the platform of weighing scales may be placed between the standards. a track pivoted to one of said standards and resting free- 1y on the other and extending over the position of the platform of the weighing scales, a carrier movable back and forth on said track. a sewing head depending therefrom and adapted to pass over the weighing platform and stitch a filled bag resting thereon. a motor mounted on the carrier. devices including a clutch for actuating the sewing head from said motor. devices including a clutch for actuating the carrier from the motor. and means actuated by the movement of the carrier after the bag has been stitched for raising the tract; to inclined position so that the carrier may return by gravity.

21. In a filled bag sewing machine, the combination of spaced standards. cross bars connecting said standards and arranged so that the platform of weighing scales may be placed between the standards, a track pivoted to one of said standards and resting freely on the other and extending over the position of the platform of the weighing scales. a carrier movable back and forth on said track. a sewing head depending therefrom and adapted to pass over the weighing platform and stitch a tilled bag resting thereon. a motor mounted on the *arrier, devices including a clutch for actuating the sewing head from said motor. devices including a clutch for actuating the carrier from the motor. and means actuated by the movement of the carrier after the bag has been stitched for raising the track to inclined position so that the carrier may return by gravity. said carrier also operating to lower the track to horizontal position when the carrier reaches its starting position.

22. In a filled bag sewing machine. the combination of spaced standards. cross bars connecting said standards and arranged so that the platform of weighing scales may be placed between the standards. a track pivoted to one of said standards and resting freely on the other and extetuling over the position of the platform of the weighing scales. a carrier movable back and forth on said track. a sewing head depending therefrom and adapted to pass over the weighing platform and stitch a filled bag resting thereon. a motor mounted on the carrier, devices including a elutch for actuating the tut lob

sewing head from said motor, devices including a clutch for actuating the carrier from the motor, means actuated by the movement of the carrier after the bag has been stitched for raising the track to inclined position so that the carrier may return by gravity, said carrier also operating to lower the track to horizontal position when the carrier reaches its starting position, and treadle operated devices for actuating the clutches constructed and arranged so that the operator may connect first the carrier to the motor and then the sewing head to the motor.

23. In a filled bag sewing machine, the combination of spaced standards, cross bars connecting said standards and arranged so that the platform of weighing scales may be placed between the standards, a track pivoted to one of said standards and resting freely on the other and extending over the position of the plat-form of the weighing scales, a carrier movable back and forth on said track, a sewing head depending therefrom and adapted to pass over the Weighing platform and stitch a filled bag resting thereon, a motor mounted on the carrier, devices including a clutch for actuating the sewing head from said motor, devices including a clutch for actuating the carrier from the motor, means actuated by the movement of the carrier after the bag has been stitched for raising the track to inclined position so that the carrier may return by gravity, said carrier also operating to lower the track to horizontal position when the carrier reaches its starting position, treadle operated devices for actuating the clutches constructed and arranged so that the operator may connect first the carrier to the motor and then the sewing head to the motor, and devices actuated by the tilting of the track for disconnecting the clutches from the motor so that the carrier is free to return to initial starting position.

24. In a filled bag sewing machine, the combination with spaced standards, a track pivoted to one of said standards, and extending over the other standard, an adjustable stop carried by the last-named standard on which the free end of the track rests, a carrier adapted to move along said track, a sewing head mounted on the carrier, a pivoted bracket mounted on the standard adjacent the free end of the track and carrying ro'llers at the upper end thereof, means operated by the carrier for moving said bracket so as to raise the free end of the track, and an adjustable stop for limiting the movement "of the bracket.

25. In a filled bag sewing machine, the combination with spaced standards, a track pivoted to one of said standards and extending over the other standard, an ad]11Stable stop carried by the last-named stand ard on; which the free end of the track rests,

a carrier adapted to move along said track, a sewing head mounted on the carrier, a pivoted bracket mounted on the standard adjacent the free end of the track and carrying rollers at the upper end thereof, means operated by the carrier for moving said bracket so as to raise the free end of the track, an adjustable stop for limiting the movement of the bracket, and means operated by the carrier for releasing the track when the carrier reaches initial starting position so that the track may return to horizontal position.

26. In a filled bag sewing machine, the combination of spaced standards, a track pivoted to one of said standards and freely resting on the other, adjustable stops adjacent the free end of the track on which said track rests. a bracket pivoted to the standard and carrying rollers for engaging the track and raising the track from its supporting stops. a rod connected to the bracket and having spaced controlling collars thereon, a carrier movable along the track, a sewing head mounted on the carrier, a motor for actuating the sewing head. said carrier being adapted to engage one of said collars for moving the bracket to tilt the track after the stitching of the bag has been finished and adapted to engage the other collar for lowering the track when the carrier reaches initial starting position.

27. In a filled bag sewing machine, the combination of spaced standards, a track pivoted to one of said standards and freely resting on the other, adjustable stops adjacent the free end of the track on which said track rests, a bracket pivoted to the standard and carrying rollers for engaging the track and raising the track from its supporting stops, a rod connected to the bracket and having spaced controlling collars thereon. a carrier movable along the track, a sewing head mounted on the carrier, a motor for actuating the sewing head, said carrier being adapted to engage one of said collars for moving the bracket to tilt the track after the stitching of the bag has been finished and adapted to engage the other collar for lowering the track when the carrier reaches initial starting position, de vices including a clutch and a reduction gear for positively driving said carrier forward from said motor, and treadle controlled means for controlling the actuation of the carrier and the sewing head by the motor.

28. In a filled bag sewing machine, the combination of spaced standards, a track pivoted to one of said standards and freely resting on the other, adjustable stops adjacent the free end of the track on which said track rests, a bracket pivoted to the standard and carrying rollers for engaging the track and raising the track from its supporting stops, a rod connected to the brack- Ian et and having spaced controlling collars thereon. a carrier movable along the track, a sewing head mounted on the carrier, a motor for actuating the sewing head, said carrier being adapted to engage one of said collars for moving the bracket to tilt the track after the stitching of the bag has been finished and adapted to engage the other collar for lowering the track when the carrier reaches initial starting position, devices including a clutch and a reduction gear for positively driving said carrier forward from said motor, treadle controlled means for controlling the actuation of the carrier and the sewing head by the motor, and devices operated by the tilting of the track for disconnecting the carrier and the sewing head from the motor so that the same is free to return by gravity after the bag has been stitched. v

29. ln a filled hag sewing machine, the combination of spaced standards, a track pivoted to one of said standards and extending over the other. said track including spaced rails, a plate connecting said spaced rails at the free end thereof, set screws mounted on the standard and engaging the under face of said plate whereby said track may be supported in horizontal position or slightly inclined downwardly, a carrier adapted to move along the track, said carrier having two wheels engaging the rear rail of the track, a single roller engaging the front rail of the track, a depending bracket mounted on the carrier and extending between the rails. a sewing head mounted on the depending bracket, a motor mounted on the carrier, means including a clutch for actuating the sewing head from the motor, means including a clutch for actuating the carrier from the motor, devices actuated by the carrier for tilting the track after the bag has been stitched so that the carrier may return by gravity to starting position, and a treadle controlled means for actuating the clutches.

30. In a filled bag sewing machine, the combination of spaced standards, a track pivoted to one of said standards and extending over the other, said track including spaced rails, a plate connecting said spaced rails at the free end thereof, set screws mounted on the standard and enga ing the under face of said plate whereby said track may be supported in horizontal position or slightly inclined downwardly, a carrier adapted to move along the track, said carrier having two wheels engaging the rear rail of the track, a single roller engaging the front rail of the track, a depending bracket mounted on the carrier and extending between the rails, a sewing head mounted on the depending bracket, a motor mounted on the carrier, means including a, clutch for actuating the sewing head from the motor,

means including a clutch for actuating the carrier from the motor, devices actuated by the carrier for tilting the track after the bag has been stitched so that the carrier may return by gravity to starting position, and a treadle controlled means for actuating the clutches, said treadle controlled means including devices whereby the carrier may be actuated from the motor without operating the sewing head.

31. In a filled bag sewing machine, the combination of spaced standards, a track pivoted to one of said standards and extending over the other, said track including spaced rails, a plate connecting said spaced rails at the free end thereof, set screws mounted on the standard and engaging the under face of said plate whereby said track may be supported in horizontal position or slightly inclined dmvnwardly, a carrier adapted to move along the track, said carrier having two wheels engaging the rear rail of the track, a single roller engaging the front rail of the track, a depending bracket mounted on the rarrier and extending be tween the rails, a. sewing head mounted on the depending bracket, a motor mounted on the carrier, means including a clutch for actuating the sewing head from the motor, means including a clutch for actuating the carrier from the motor, devices actuated by the carrier for tilting the track after the bag has been stitched so that the carrier may return by gravity to starting position, a treadle controlled means for actuating the clutches, said treadle controlled means including devices whereby the carrier may be actuated from the motor without. operating the sewing head, and devices operated by the tilting of the track for disconnecting the clutches so to release the carrier from the motor whereby it may be returned by gravity to initial starting position.

232. ln a filled bag sewing machine, the combination of a track, a carrier adapted to move along the track, a sewing head mounted on the carrier, a motor mounted on said carrier, a transverse shaft, a worm wheel freely mounted on said shaft, a gear on the carrier operated by the motor and connected to said worm wheel, a clutch member mounted on the shaft and adapted to engage the worm wheel whereby the shaft is driven from the worm wheel, a gear wheel carried by the shaft, and a rack on the track with which said gear wheel meshes, said rack being inverted and engaging the upper face of said gear.

83. In a filled bag sewing machine, the combination of a track, a carrier adapted to move along the track, a sewing head mount ed on the carrier, a motor mounted on said carrier, a transverse shaft, a worm wheel freely mounted on said shaft, :1 gear on the carrier operated by the motor and connected

Images