US1525732A

US1525732A - Filled-bag- sewing machine

Info

Publication number: US1525732A
Authority: US
Publication date: 1925-02-10
Anticipated expiration: 1942-02-10

Description

FeB. 10, 1925. 1,525,732

H. O B. HARDING FILLED BAG SEWING MACHINE Fi ed May l5, 7 Sheets-Sheet l FiG-l WITNESS:

Feb. 10, 1925.

' H. OB. HARDING FILLED BAG- SEWING MACHINE 7 Sheets$heet 2 Filed Ma 1920 INYENTOR HENRY os. HAR we Wl'TNESS:

Feb. 10, 1925] H. O'B. HARDING FILLED BAG SEWING MACHINE led May l5, 1920 75heets-Sheet 5 H. OB. HARDING FILLED BAG SEWING MACHINE Feb. 1,525,732

WITNESS INVENTOR HENRYO'BHARD G g mmmd BY 3 r 1,525,732 H. OB. HARDING F ILLED BAG SEWING MACHINE Filed May 15, 1920 '7 Sheets-Sheet 5 Aih 5 INVQNLDR G HE RY 0B. ARIN Feb. 10, 1925. 1,525,732

H. O B. HARDING FILLED BAG SEWING MACHINE Filed 1920 7 Sheets-Sheet 6 WITNESS Q INVENTOR Mmwm Feb. 10, 1925 1,525,732

H. OB. HARDING FILLED BAG SEWING MACHINE Filed May 15, 1920 'r Sheets$heet *7 5 FIG-M 5'1 GI I33 1 53 Isa 0 0 O O 5 050 o} a :Q 0} l8 l'] WITNESS: INVENTOR HENRY o'a. HARDING BY I ATTV'S.

Patented Feb. 10, 1925.

UNITED? ST HENRY'OIB. HARDING, OF

PATENToration MINNEAPOLIS, MINNESOTA.

FILLED-BAG snwING MACHINE Applicationfiled May is, 1920;" seriai' No. 331,643.

To all whom it may concern Be it known that I, HENRY OBQ HARDING, citizen or" the United Statesfresiding' at Minneapolis, in the :'county of Hennepin and State of ivlinnesota, have invente'd' acertainnew and-useful Filled-Bag Sewing Machine, of Whiclrthe followingis a speci' vention is to provide a machineof the 'character mentioned wherein is included a conveyer mounted to travel along thefloor of a packing room in ]uXtapos1t1on to the pacle ing machines, and upon which the filled sacks are-placed, as. they leave the packing machine, for conveyance to the sewingmachine. The weight of the sacks as they travel to the sewing machine thereby is borne by the floor, and the necessity for lifting the filled sacks for presentation to the sewing organization is eliminated. I

A further object of the invention is the provision of a sewing machine of the char acter referred to the construction of which is such that the sewing organization may be adjusted with facility and ease in relation to the conveyer, whereby to adapt the machine for sewing bags of varying height or length, and without disturbing or disar ranging the driving connections of the sewing organization, or. altering the relation which the latter hearsto the conveyer.

The invention further contemplates a tilledbag sewing machine having novel and eflic-ient means for actuating and controlling the sewing organization. This enables the latter instantly to operate when the proper instrumentalities have 'been set by the operator, and to come instantly to rest at the completion of the sewing operation. WVas te of thread, due to the uncontrolled momentum of the sewing organizatlon after the While intended *pri sewing operation has been completed; "there hy is avoided, and" the sewin g iirganization' is suhgected to operating wear'only ior the period required "for the torniation pf the stitches actually necessary for "sewing; the

(Ether objects and advantages ap ear as the nature of the improvementsisbetter "understood, the invention consisting suh-" stantially in the novel construction, conibi nation and arrangeineiitfof parts hereiiia'ft y 1 fully described,"illustrated in the accom f, panyi'ng drawings, and finally pointed 1 out in the appended claimsrfl The disclosure hereinpresents a prac tical embodimentof 'the' inventio n'aiid delineates to the artan appropriation "of the concept to one of the m sa) Which the in-" 'vention may he applied-It is to he consid cred, therefore, from an illustrative stand point and not'in a limitingor restrictive sense.

In the drawings- Fig. 1 is a frontelevation of a filled hag sewing machineconstructed in accordance with the present invention.

Fig. 2 is a side elevation thereof.

Fig. 3 is alsoa side elevation, viewing 7 the machine fromthe slde opposite to that illustrated in Fig. 2.

Flg. 4E 1s a rear elevation of the "niachlne pedestal, the 'ad ustahl'e carrier for the seW- ing mechanism, and the adjusting screwwith which the carrier (lo-operates, the 'seW- ing mechanism and its adjuncts being omitted.

Fig. 5 is a fragmentary vertical sectional view through the adjustable carrier for'the sewing mechanism.

Fig. 6 is a similar View, parts being in elevation, of the compound clutch incorpo sewing mechanism.

Fig. 7 1s a detail elevation, on an enlarged scale, of the instruinentalities for actuating the thread-cutting mechanism and for locle' ing the same in inoperative position.

Fig. 8 is a detail vertical sectional view on the line8-8, Fig. 7'.

Fig. 9, is an inverted sectional plan view on the line 9-9,Fig. 7;

Fig. 10 is a side elevation 0t the thread cutter, on an enlarged scale.

Fig. 11 is a detail plan view thereof.

Fig. 12 is a detail 'sectional'plan view of rated in the driving con1iections"for the the mechanism for controlling operation of the machine.

Fig. 13 is a detail perspective view of the head of the clutch shifting lever.

Fig. 14 is a, fragmentary front elevation of the machine illustrated as equipped with another form of motor drive therefor;

Fig. is a side elevation of the construction shown in Fig. 14.

As hereinbefore stated, the present invention contemplates a machine in which the filled bags are fed thereto by a conveyer which travels along the floor of a. packing room, or other locality in which the machine is placed, which conveyer is located in such relation to the packing machines for feeding the commodity to the bags that the latter, when filled, may be placed upon the. conveyer without the necessity of lifting the same to any material elevation above the support on which they have been placed for filling. in the present adaptation of the machine, as also indicated, the same is designed for use in the closing of the mouths of sacks filled with flour. The conveyer, therefore, traverses a path adjacent to the flour packing machines, and as the bags are filled thereby with the flour they are placed upon the conveyor and moved to the sewing machine, which occupies a. fixed position with respect to the conveyer. The numeral 10 designates the conveyer in question, this being of the endless belt type, and the stretch thereof on which the bags are placed bears directly against the floor of the packing room and is supported thereby under the weight of the filled bags. This conveyer may be of any approved construction, and the same has a continuous motion imparted thereto by driving mechanism independent of the mechanism for driving the sewing machine now to be described.

The numeral 11 designates a vertically disposed supporting pedestal, which pedestal is provided with a base 12 that is bolted, or otherwise suitably connected, to the floor of the packing room, and at a point adjacentto one edge of the conveyer 10. Extending between the sides of the pedestal 11 is a connecting web 13, which web is provided with a longitudinal slot 14 extending substantially the entire length of the web. By the formation of the slot 14 the side portions of the web 13 provide guides 15, and it is upon these guides that the sewing organization presently to be referred to is designed to be vertically adjusted, whereby to occupy different positions with respect to the conveyer 10, and thus to be adapted for the sewing of the mouths of bags of different height.

Associated with the pedestal 11 is a vertically adjustable carrier 16. This carrier comprises a body plate 17 of substantial area, which plate fits snugly upon the face of the web 13, said face and the opposing face of the plate 17 being properly machined to provide smooth surfaces designed to atford free sliding movement of the carrier 16 with respect to the pedestal. The edges of the body plate 17 are provided with flanges 18 which gradually increase in size from the lower end of said plate to its upper end, and said flanges 18 are curved in a forward direction with respect to the pedestal 11 to provide an overhanging supporting head 19 to which a sewing head 20, of any approved construction, is attached. it will he observed, however, that the head 20- is so disposed that the needle thereof will operate in a horizontal plane, and thus across the mouth of the bag to be closed when the mouth thereof has been introduced between the feed mechanism and the presser foot of the sewing head. its the sewing head forms no part of the present invention, except that it constitutes broadly the sewing mechanism, it is unnecessary to describe the same in detail.

Adjacent to one side of the pedestal 11 is a vertically disposed control shaft 21. The lower end of this shaft extends through the floor which supports the pedestal 11, and its extremity is seated in a thrust bearing 22 which is fixedly mounted beneath said floor. The shaft 21 is also received by a bearing bracket 23 which is carried by the pedestal 11,, and against which a collar 24, carried by the shaft 21, is seated. The shaft 21 has a spline groove 25 formed therein, which groove extends substantially throughout the length of the shaft, the purpose of which will presently appear. The control shaft 21 has an oscillatory movement about its 1ongitudinal axis, and this movement is utilized in one direction for eifecting application of power to the sewing mechanism, while its movement in the opposite direction is em ployed for effecting stoppage of the sewing mechanism, and also for operation of the mechanism which is provided for severing the chain of stitches at the completion of the sewing operation. The shaft 21 is actuated by foot pressure applied by the opera tor of the machine, and by this means the hands of the operator are free for use in introducing the mouth of the bag to the sewing mechanism and for guiding the bag when such is required. By referring to F 12 the control mechanism for operation of the machine will be better understood. This includes a foot treadle 26 which is supported 'by an attaching yoke 27, said yoke having its stem 28 adjustably mounted in an attaching bracket 29 which is sleeved upon a supporting shaft 30, said bracket 29 being adjustably held on said shaft 30 by aset screw 31. The shaft 30 is mounted in bearings 32 properly supported beneath the floor of the packing room at such a point lift) that the treadle 26 may project into a pit formed in the H001 and in which the operator stands so as to be in convenient position to the sewing mechanism and the conveyor 10 for proper manipulation of the filled bags as they ap in'cach the sewii'ig meclr nism. Connected to one end of the shalt 30 is a sleeved attaching bracket 34, which is adjustably mounted on said shaft 30 by a set screw 85, and said braclret 34 has connecting; rod 36 adjustably mountol therein. as by a set screw 37 said rod 36 depending from said bracket 34- and extending down wardly therefrom for application to a con necting link 38. The ends of the link 38 provided with attaching

brackets

39 and 40, respectively, the bracket 39 being adjustably mounted on the rod 36 as by a set screw 41, and h aving a bifurcated end which receives the connecting linlr 38 and with which it is hingedly connected, by a pin 4. The bracket 4L0 has its ends also hifurcated but the bifurcations thereof are at right angles to each other one of the same receiving the end of the linl: 38, to whi 1 it is hingedly connected as by a pin to, while the other bifurcation receives the end of a lever arm 4A to which it is connected as by a pin The lever arm is sleeved upon the control shaft 21, being rigidly held thereon by suitable fastenings. Therefore, the shaft 21 is actuated by the lever arm 4- and the connecting link upon depression m7 of the treadle 26 to be shnted in one direction of rotation, and this is utilized for applying power to the sewing meihanisin. lit a point above the floor of the packing room. or the support on which the pedestal 11 is mounted, the control shaft 21 has mounted thereon a second lever arm 4:6 said arm d6 projecting in an opposite direction to the lever arm a and said arm 46 has nected thereto one end of a spiral spring i which spring passes through the basal portion of th pedestal 11 and has its other end one cred to a fastening stud 48 carried by said pedestal. @n the depression of the treadle 26 the spring- 4-7 is placed under tension, the outward movem nt of the aim H5 away from the pedestal serving to accomplish this and the power of the spring 4L7 is cn'iployed for returning the treadle 26 to its normal elevated position after pressure l been removed therefrom. (ll)- 11215 viously. tl'ierefore when the force of the spring 27 is thus applied the control shaft 21 is rotated in a direction opposite to that imparted thereto on the depression of said treadle. This serves to tire part thus far described to their nor-- mal pos'tioni, and at the same time to interrupt the driving connections to the sewlug; mecl'ianisin. whereby the latter is brought to rest, and the chain of stitches likewise severed as will later appear.

disconnected restore the opera-' The control shaft 21 extends substantially hroughout the length of the pedestal ll. it received by a pair of perforated ears carried hy a bracket 50 fixedly connected to one side the carrier 16 and said perforated ears l9 freely slide over the shaft 21 in the vertical movement of said carrier. llctween the ears to is mounted a connect :ing sleeve said we having a feather connection (not shown) with the spline groove 25 of the shaft 21. Thus while said slce 51 ada ited to sli e in a vertical directii'in along; the shaft i has no independent rotation tl iereon ai is or illa the sleeved moves thererogecting from one side of said sleeve 51 is a ccnneutingi arm 32 the extrenr ity of which has a loose pivotal connection with a depending shifting lever 53, the upper one of said lever 53 being curved and extending torwardly and tern'linating in a connecting yolre 5 4%. The upper end of said lever :33 is pivot-ally mounted or fulcrunied e of up ardly extending; ears I 'n 56, and the lever follows the oscillatory movement of the arm 52. due to the oscillation of the control shaft 21 the yoke is raised or lowered.

'2 tinged at the side of the carrier 16 at which the control shaft is located is a supporting; brachet 5? aid bracket being provided witli an attachi 9; foot 58 that is bolted to said carrier. The cars are carried by said. ln'aclcet and 0 end i'ipwardlj-. therefrom, and the e .renriity of the bracket 57 opposite to the attaching foot extents i dly in parallel relation to the ears Between the latter and the upwardly extend inn" extremity of the bracket 57 is arrai'iged a clutch ring 59 which is bolted to the bracket 53? and sustained thereby in fixed relation thereto. The inner face of this clutch ring 59 is beveled and said ring serves as a brake for effecting instant stoppage of the sewing mechanism when the power has been trllel'QflOlll. This will presn as ently appear.

. he su 'ipcrting bracket 57 has a bearing 60 termedtherein, which bearing receives a spindle til the lower end of which extends belmv the hraclret 57, it pulley 62 is mounted on this led lower end of the spindle 61 and a driving" belt 63 is trained over this pulley arhl also over a driving pulley tS-l: carried by ti o armature shaft of id as the shaft "h clutch ring 59 is clutch shell TO. The traces of the ila nge oi? said shell are beveled and the fa e of the cone 36 is beveled .7 1 7 p Y 5- to conic with. the bevel or the shell. (0. s. however, between the lie clutch cone 66 for Sullicient space clutch ring and hunted inov .ent o f the clutch shell 70 in relation to both oi these elen'ients. Consequentiy, when the shell Til is moved into engagement wish the cone (36 a driving connection is established. therebetween, and the shell TO operates with the cone. lVhen, however, this connection is brol-z n and the shell 70 is moved into engagement with the ring 55), movement ot the shell 70 imn'iediately ceases. The shell 70 a centrally disposed upwardly extending sleeve 71 which is surrounded by a connecting ring 72, and said connecting ring 72 is provided opposite points with outwardly extending studs 73 which are received by notches 7d formed in the extremities oi the sides of the yoke 5a. The upper end of the sleeve 71 is screw threaded and a clamping ring is connected therewith and overlaps the con necting ring 72 to retain the latter in posh tion on said sleeve. At the opposing faces of the connecting ring 72 and the clutch shell 70 are arranged annular inserts T6 and 7'7, which are or hardened metal, and interposed between said inserts 76 and 7'? is a series of ball bearings 78. The inserts 76 and 77 constitute a raceway for these hearings. The shell 70 has a tieather and spline connection 7 with a spindle 80, which is arranged in alignment with the spindle 61, but disconnected therefrom. The spindle 80 is journaled in a bearing bracket 81 bolted to one side of the overhanging head of the carrier 16, and at the upper end oi said spindle 80, above the bracket 81, is mounted a pulley over which is trained a driving belt 83 which passes around pulley 8 carried by the sewing head 20. Thus it will be seen that when the spindle 80 is rotated by reason oi a driving connection being established between the cone 66 and the shell 70 the sewing head is operated and this operation continues so long as the connection between. said cone and said shell remains established. il hen, however, this is broken, and the shell 70 moves into engagement with the clutch ring 59 the operation of the sewing head is stopped instantly. This is due to the fact that the ring 59 serves as a brake for the clutch shell 70.

To provide against end thrust of the isasysz will he severed closely thereto in order to prevent undue piste oi the thread. l

it and ii illus ate in detail the threadcu'iting mechanism, and by referring thereto the numeral 8? dc sates an elongated bearscrew which is in threaded engagement the arm of the sewing hear 20, said h J suilicient length to extend on id screw, bei ,1 spaced from the adjacent portion of the arm of the head 20 by a washer pivoted. cutter finger 88 is in (to-operative relation with the throat piste .hi oi? the sewing head, ant. said throatplate 536 a slight distance beyond the mini oi? the sewing head to constitute a statiiiinary cutter with which the linger 88 reacts. lnterposad between the head of the screw 81 and the cutter finger 88 is a coil spring 91. the )IQSSUI'Q 01" which is exerted against the cutter linger 88 to maintain the 'ler in contact with the cutting edge of the throat plate 90. Tlhe cutter finger 88 has 1 ed at one of its sides a pinion 92, and

"'01'1. this pinion is engaged by the teeth of a segmental gear 9'3 pivotaliy mounted on a shaft Sc -.5 carried by a supporting bracket associated with the arm of the sewing head 20. ll l'ien, therefore, the segmental gear 93 is swung upon the shaft 94!: the meshing oi the teeth thereot with the pinion 92 causes the pivoted cutter linger 88 to swing into cutting relation with the cooperating end of the throat plate 90 for severing the chain of stitches, and for moving the cutter finger from its cutting relation with said throat plate, these movements being dependent upon the direction of movement of the gear 98. A connecting lint: 98 has pivotal en gag g'enient at one of its ends with. the segmental gear 98, at 9. and its other end has similar engagement, as at 98, with the upper end o'l' a shifting lever 99 the lower end of w iieh is pivot-ally connected, as at 300. with an attaching bracket 101 bolted to the body plate 17 oi the carrier 18. lhe shittin lever 99 is arranged upon said body plate ii in proximity to the side thereof at which the control shaft 21 is located. Associated with the sleeve 5i, and projecting therefrom at the side thereof which is opposite to the arm 52, is a contact arm 102, said arm projecting through slotted openings formed in the bracket 50 and the flange 18 to which said bracket is bolted. The

contact arm 102 located between the body plate and the 1 fting levei 99, and to facilitate this positioning of said contact arm said 1 ver 99 has a bowed portion 103.

107 that is formed in the arm 102, and said finger IOihas a yi eldingmoveinent in the direction away from the shiftinglever 99, controlled by a leaf spring 108 arranged at the'rear face ofthe contact arm 102. This yielding movement of the engaging finger 104; permits of yielding contact between the same and the shifting lever 99, so that if tl'ie movement of the arm 102, under the oscillation of the control shaft 21, istoo great, breakage of the parts is prevented by the yielding movement of the finger 1041 when it engages with the lever 99. i From the fact that the contact arm 102 is disposed at the side of the sleeve 51 opposite to the arm 52, it will be seen that the movement of the latter, in swinging the lever for application of the power to the sewing head,

results in the contact arm 102 engaging the lever 99, and this causes the latter to swing away from the body plate 17 with a resultant forward movement of the connecting link 90 andswinging of the se 'inental gear 93 in a downward direction. This, raises the cutter linger 88 to inoperative position, and the chain of stitches formed by the sewing mechanism is not subject to the cutting action of the thread cutter. To sustain the cutter iinger 88 in this position a locking trip 109 is employed. This trip is in the form of a bell crank lever the longer arm of which extends downwardly in a substantial 1y vertical 1305191011, 1111116 the shorter arm thereof e inds outwardly in a substantially horizontal position, and said looking trip 109 has a pivotal connection, as at 110, with an attaching bracket 1.11 bolted or otherwise suitably connected to the body plate 17. I The horizontal arm of the trip 109 has an engaging shoulder 109 which co-opcrates with a locking stud .112 arranged at the side of. the shifting lever 99 and which projects over the shorter arm of the locking trip 109. A coil. spring 113 is interposed between thelonger arm of the trip 109 and said body plate 17,and the pressure of this spring utilized for urging the shorter arm of the trip in an upward directionin orderto maintain the shoulder 109 thereof in proper operative relation to the locking stud 112. li hen the shifting lever 99 is thrust forwardly by contact of the arm 102 therewith, the locking stud 112 is projected in a for v rd direction with respect to the locking trip 109, and when said stud has cleared the shoulder the spring 113 causes the trip 199 to position the sheulder 109 in rear of said stud and thereby prevent return move ment of the lever 99 untilrelease of the trip 109 from engageinent with the stud 112. This holds the cutter finger 88 in raised posi tion during the operation of the stitch-forming mechanism. it is. to bdobserved that the depending arm of the trip 109 is arranged between the body plate 17 andthe engaginglinger 104: of the arm 102. When, therefore, the arm 102 moves away from the lever 99 and towards the body plate 17 it engages the trip109 and swings the depending arm thereof towards the plate 17. This depresses the shorter a'rnrof the trip 109, against the pressureof the spring 113, and frees the shoulder 109 from engagement with the locking stud 112. When this release takes place the shifting lever 99 im mediately moves towards the plate 17 due to the action of a coil spring 11 1, one end of whichis connected to said plate 17 and the other end of which is engagedwith a lug 115 carried by the lever 99' at the side thereof opposite to that whereon the locking stud 1.12 located. The spring 114 is of such strength that when it exerts its pull upon the lever 99 a quick action imparted to the latter, and this causes the pivoted cutter finger 88 to snap downwardly into cutting relationwith the throat plate 90 and thereby to sever the chain of stitches in the path of downward movement of said finger. At this time, as will be understood from the preceding; description, there has been movement of the lever 52-3, under the shifting action of the control shaft 21, to release the cone shell from the clutch cone 66, and this obviously brings the sewing mechanism to rest. 7

It is desirable to limit the forward thrust of the shifting lever 99, and to this end a stop 116, preferably in the form of a hook bracket, is bolted. to the plate 17 so as to project in advance of the lever 99, and thereby restrict the forward movement of the latter. p

It has been stated that the present invention contemplates also the provision of means for adjusting the sewing organization at varying points of elevation above the conveyer 10, thereby to adapt the machine for the sewing of filled bags of varying height or length. For this purpose there is associated with the pedestal 11, and fixedly mounted in the base 12 thereof, a vertically extending adjusting screw 117. This screw is substantially the length of the pedestal 11, and is positioned therein in opposite relation to the slot 14. A guide plate 118 is arranged at the side of the web 13 which is oppositeto the side thereof at-which the carrier 16 is located. This guide plate 118 is of suflicient width that its edgesoverlap the guides 15 of the web 13- andj-said plate 118 is adaptedto travelvertically on said guides.

The plate 118 is connected at its top and bottom by a plurality of machine bolts 119 with the body plate 17 of the carrier, and said

plates

17 and 118 are thereby held in em bracing relation with respect to the guides 15. While the carrier and said plate 118 may move vertically on the pedestal 11, separation of the carrier from the pedestal is prevented by the plate 118 being positioned at the opposite side of the web 13 to that at which the carrier is located.

The guide plate 118 is provided with an integral offset boxing- 120, said boxing having at its upper and lower ends aligned openings 121, and said openings receive the adjusting screw 117. Mounted on the screw 117 is an adjusting sleeve 122 the bore of which is screw threaded so as to correspond to and mesh with the threads of the screw 117. The length of this sleeve 122 is substantially coextensive with the interior of the boxing 120, and this provides a snug fit between the ends of said adjusting sleeve 122 and the ends of the boxing 120. As the screw 117 is stationary, and thus incapable of rotation, the vertical adjustment of the boxing 120, and, perforce, corresponding adjustment of the carrier 16 by reason of its connection with the guide plate 118, is effected by rotation of the sleeve 122 on said screw. This is accomplished by a bevel pinion 1-8 which is formed integral with the sleeve 122, which pinion meshes with a corresponding pinion 124 carried by a shaft 125. This shaft 125 is ournaled in a tubular bearing 126 carried by an attaching plate 127 bolted or otherwise suitably fastened to the face of the body plate 17. For accommodating the pinion 124, the bearing 126 and the shaft 125, the body plate 17 has an open ing 128 formed therein, and said opening receives said parts to position the pinion 124 in intermeshing relation with the pinion 128. The shaft 125 projects beyond the attaching plate 127 and is there provided with an operating crank 129 for its rotation. To obtain vertical movement of the carrier it is but necessary to rotate the crank 129 in the desired direction, whereupon the adj usting sleeve 122 is caused to travel along the screw 117, and by reason of the arrangement of the sleeve 122 within the boxing 120 the carrier 16 will move upwardly or downwardly along the pedestal 11 in accordance with the direction of movement of the crank 129.

For supporting the spool or spools of thread in proper relation to the sewing head 20 a thread carrier 130, of any approved construction, is mounted upon the head of the carrier and suitable guides may be provided for training the thread to the sewing head.

From the foregoing description the operation of the herein described bag closing mechanism will be apparent, but briefly described it is as follows: The filled bags delivered from the packing machine or machines are placed upon the conveyer 10 and by the latter transported to the sewing machine. As the individual bags successively reach the sewing machine the mouth of each bag is presented to the sewing mechanism, it being understood, of course, that the speed of travel of the conveyer 10 is properly proportioned to the feeding mechanism of the sewing head so that the movement of the body of the bag will be such as not to interfere with the free feeding of the mouth thereof through the sewing mechanism. On presentation of the advancing portion of the bag mouth to the stitch forming mechanism the operator depresses the treadle 26, which movement actuates the control shaft 21 so that the arm 52 actnates the lever 53 to de press the cone shell into engagement with the clutch cone. 66. It is, of course, understood that the motor 65 is constantly operating and thereby is affording continuous rotation to the clutch cone 66 through the driving belt lVhen the shell 70 thus is engaged with said clutch colic rotation is imparted to the spindle 80, the pulley 82 and the pulley 8 1 on the sewing head 20. The stitch forming mechanism of the head is thus set into operation, and the mouth of the bag feeds through the sewing head and is closed by the stitch forming mechanism thereof. hen the month has been completely closed the operator removes pressure from the treadle 26, whereupon the spring 4-7 swings the control shaft 21 in the direction opposite to that effected by depression of the treadle 26, and this movement withdraws the contact arm 102 from engagement with the shifting lever 99. At this time the engaging finger 104 swings against the locl*- iug trip 109 and depresses the short arm thereof from its engagement with the locl ing stud 112 carried by the lever 99. Instantly the pull of the spring 114 is exerted on the lever 99, and by means of its connection with the segmental gear 93 through the link 96 said gear is moved upwardly, thereby swinging the pivoted cutter finger 88 down wardly into co-operative cutting vrelation with the throat plate 90. A severance of the chain of stitches follows, and the filled bag with its mouth closed then passes away from the sewing machine and is carried by the conveyer 10 to a suitable point of delivery or distribution. When pressure has been removed from the treadle 26 the arm 52 rocks the lever 53 in the direction opposite to its movement when the treadle 26 was depressed, and in this rocking of the lever the clutch shell 70 moves upwardly into contact with the clutch ring 59, which latter, as before described, serves in the capacity a brake, and thereby brings the clutch shell 70 instantly to rest, This immediately stops operation oi the seivinp' head and prevents further feed of the thread therethrough, thus entirely eliminating waste of the thread which results from uncontrolled momentum of the sewing; head tollowing completion of the closing oi? the bag mouth. It noteworthy feature oi the operation of the herein described mechanism is the fact that when the treadle 26 is depressed :lor application of the power to the sewing); head there is ii'i'in'iediate movement imparted to the pivoted c tter S8 of the thread cut ting mechanisn'i to raise the same to inoperative position, this being induced by contact of the linger 104 of the arm 102 with the lever 99 to thrust the latter toiwvardly and to permit locking: engagement of the trip 109 with the stud 112 thereof, whereby to retain the-pivoted cutter 88 in inoperative position during the entire operation of the ClOSlllQO'li the bag; vice ersa, when pressure is released from the treadle 26 to disconnect the power from the sewing head 20, the stitch-forming; mechanism instantly comes to rest, due to the disconnection of the clutch shell fromthe clutch cone 66, but simultaneously therewith the locking trip 109 is released from its engagement with the shifting lever 99, and the latter, induced by the action of the spring 114, instantly snaps the pivoted cutter 88 into cutting relation with the throat plate 90, thereby severing the chain'of stitches at the time of removal oi. the power from the sewing head.

In li ies. 14 and 15 is disclosed another form of motor drive for the sewing organization. This simplifies the construction of drive illustrated in the other views and eliminates the belt connection between the motor and the spindle 61. The form dis closed in Figs. 'lxt and 15 includes an electric motor 131 SltppOl'lTEKb from the carrier 16 l an attaching bracket 132, and which is connected to the side of the carrier 16 at which the compound clutch is. located. The motor 131. therefore, is directly below the compound clutch, and its armature shaft is arranged vertically so as to be in line with the spindle 61 to which it is connected by any suitable form of coupling 133. This direct connection of the motor with the spindle 61 affords direct application of the power to that spindle, and the possibility of displacement of the driving belt which c tends from the motor to the spindle 61, as disclosed in the other form of drive herein shown, is overcome. In other respects, how ever, the drive of the sewing head by the construction shown in Figs. 14 and 15 is the sonic as in the other form The entire sewing); organization including its motor is supported by the carrier 16 and is movable therewith and by this arrangement the entire sewing organization may be adjusted with respect to the belt 10 which tests the bags to the machine by simply manipulating the crank 129. in this movement ot the carrier the coi'u'ustion oi the sleeve Til with the control sl'ia'l't 21. is not ii'i'ipaired as the sleeve 5t, being splined to the shatt 21., may be adjusted vertically thereof without disturbing its capacity to swing with the shaft as the latter oscillates. 'lheretore, regardless of the height of the bag, the sewii'ip; organization may be adjusted in relation to the same anu the nia chine thus is adapted to be accon'imodated to varyiin; sizes oi? bags.

l claim:

1. In a machine of the class described, the cou'ibination with a vertically disposed support, oi. a arrier slidably mounted there on. a sewing organization mounted on said carrier and movable therewith, thread-cutting mechanism associated with said sewing organization, a. source of power also carried by said carrier, control mechanism operatively related to said source of power for establishing; driving connection between the latter and the sewing organization, and means actuated by said control mechanism for actuating the thread-cutting mechanism when the sewing mechanism has been rendered inoperative.

2. In a machine of the class described, the combination with a vertically disposed. support, of carrier slidably mounted thereon, a sewing organization mounted on said carrier and movable therewith, thread cutting n'iechanism associated with said sewing organization, a motor carried by said carrier, control mechanism opcratively related to said motor for establishing driving connection between the latter and the sewing or ganization, n'ieans included in said control mechanism for rendering the sewing mechanism operative and inoperative, and means actuated by said control mechanism tor operating the tlnead-cutting mechanism when the sewing i'nechanism has been rendered inoperative, and for rendering the threadcutting mechanism inoperative when the sewing" mechanism is in operation.

3. Li a machine of the class described, the combination with a vertically disposed support, of a carrier mounted thereon, means for actuating said carrier to adjustably position the same vertically of said support, a source oi power carried by said carrier and movable therewith, a sewing organization also mounted on said carrier and movable therewith,v thread-cutting mechanism associated with said sewing organization. and control mechanism operatively related to said source (it power for establishing driving connection between the latter. and the sewing mechanism, said control mechanism being operative to render the thread-cutting mechanism ii'ioperative while Ice the sewing organization is in operation and to render the thread-cutting mechanism operative when the sewing organization ceases to operate.

.41. In a machine 01": the class described, the combination "h a support, of a carrier movable vertically thereof, a sewing organization mounted on said carrier and movable therewith, thread-cutting mechanism associated with said sewing organization, a source oi power also carried by said carrier and adapted "for constant operation, powertransmitting means interposed between said source of power and said sewing organization and adapted to render the latter operative and inoperative, control mechanism associated with said power transmitting means and manually controlled, whereby to render the sewing organization operative and inoperative, and thread-cutting mechanism also associated with said sewing organization and governed by said control mech anism, whereby the thread-cutting mechanism is rendered inoperative during opera tion of the sewing organization and operative when the sewing organization has been rendered inoperative.

5. In a machine of the class described, the combination with a support, of a carrier movable vertically thereof, a sewing head :rountcd on said carrier and movable therewith, thread-cutting mechanism associated with said sewing head, a motor carried by said carrier, gearing connections between said motor and the sewing head for actuating the latter, means included in said conncctions for rendering the sewing head operative and inoperative, and control mechanism for governing actuation of the last mentioned means, said control mechanism also serving to govern actuation of the thread-cutting mechanism to render the latter inoperative when the sewin head is operative and operative when actuation ol. the sewing head has ceased.

6. lo a machine of the class described, the combination with a support, of a carrier movable vertically thereof, a sewing head mounted on said carrier and movable therewith, thread-cutting mechanism associated with said sewing head, a motor carried by said carrier, gearing connections between said motor and the sewing head for actuating the latter, a clutch included in said gearing connections ror rendering the sewing head operative and inoperative, control mechanism for governing actuation of the clutch, said control mechanism also serving to govern actuation of the threadcutting mechanism to render the latter inoperative when the sewing head is operative and operative when actuation of the sewing head has ceased, and connections between said control mechanism and the thread-cutting mechanism, whereby when said control weaves mechanism renders the sewing head inoperative the thread-cutting mechanism is caused to operate and the thread-cutting mechanism rendered inoperative when the sewing head brought into operation.

7. In a machine of the class described, the combination with a support, of a carrier movable vertically thereof, a sewing head mounted on said carrier and movable there with, thread-cutting mechanism associated with said sewing head, a motor carried by said carrier, gearing connections between said motor and the sewing head for actuating the alter, clutch mechanism included in said gearing connect-ions for rendering the head operative and inoperative, said clutch mechanism including a driving member, a brake member, and an interposed transmitting n'ieniiber connected to the sewing head and cooperating with the brake member to effect stoppage of operation of the sewing head, and control mechanism for governing actuation of the clutch mechanism, said control mechanism also serving to govern actuation of the thread-cutting mechanism to render the latter inoperative when the sewing head is operative and operative when actuation of the sewing head has ceased.

8. in a machine of the class described, the combination with a support, of a carrier movable vertically thereof, a sewing head mminted on said carrier and movable therewith, thread-cutting mechanism associated with said sewing head, a motor carried by said carrier, gearing connections betweeen said motor and the sewing head for actuating the latter, clutch mechanism included in said gearing connections for rendering the head operative and inoperative, said clutch mechanism including a. driving member, a brake member, and an interposed transmitting member connected to the sewing head and cooperating with the brake member to ellect stoppage of operation of the sewing head, and control mechanism for governing actuation of the clutch mechanism, said control mechanism including an oscillatory shaft, a rocking member connected thereto and to the. transmitting member of the clutch mechanism, whereby to. actuate the latter when said oscillatory shaft is operated, and means interposed between said oscillatory shaft and the thread-cutting mechanism for operating the latter, whereby to render the thread-cutting mechanism inoperative during operation of the sewing head and operative when actuation of the sewing head has ceased.

9. In a machine of the class described, the combination with a support, of a movable carrier mounted on said support, means in juxtaposition to said support for conveying a tilled bag to the support, a sewing head mounted on the carrier and movable there-v with, thread-cutting mechanism associated with said sewing head, a motor carried by said carrier, gearing connections between said motor and the sewing head for actuating the latter, clutch mecl'ianism included in said gearing connections for rendering the head operative and inoperative, said clutch mechanism including a driving member, a brake member, and an interposed transmitting member connected to the sewing head and cooperating with the brake member to effect stoppage of operation of the sewing head, and control mechanism for governing actuation of the clutch mechanism, said control mechanism including an oscillatory shaft, a rocking member connected thereto and to the transmitting member of the clutch mechanism, whereby to actuate the latter when said oscillatory shaft is operated, and means interposed between said oscillatory shaft and the thread-cutting mechanism for operating the latter, whereby to render the thread-cutting mechanism inoperative during operation of the sewing head and operative when actuation of the sewing head has ceased.

10. In a machine of the class described, the combination with a support, of a can rier movable vertically thereof, a sewing head mounted on said carrier and movable therewith, thread-cutting mechanism associated with said sewing head, a motor carried by said carrier, gearing connections between said motor and the sewing head for actuating the latter, clutch mechanism ineluded in said gearing connections for rendering the head operative and inoperative, said clutch mechanism including a driving member, a brake member, and an interposed transmitting member connected to the sewing head and cooperating with the brake member to effect stoppage of operation of the sewing head, control mechanism for governing actuation of the clutch mechanism, said control mechanism including an oscillatory shaft, a rocking member connected thereto and to the transmitting member of the clutch mechanism, whereby to actuate the latter when said oscillatory shaft is operated, means interposed between said oscillatory shaft and the thread-cutting mechanism for operating the latter, whereby to render the thread-cutting mechanism ino.p erative during operation of the sewing head and operative when actuation of the sewing head has ceased, and latching mechanism cooperating with the last mentioned means to restrain movement of the thread cutting mechanism during operation of the sewing head and to be released by the con trol means when the latter aetuates the clutch mechanism to effect stoppage of the sewing head.

In testimony whereof I have hereunto signed my name in the presence of two witnesses.

HENRY OB. HARDING. Witnesses:

Fnancns K. GILLEsPIE, WM. Nnvannn CRoMwnLL.