US875314A

US875314A - Filled-bag sewing-machine.

Info

Publication number: US875314A
Application number: US1755200A
Authority: US
Inventors: John Bigelow
Original assignee: Union Special Machine Co
Current assignee: Union Special Machine Co
Priority date: 1900-05-22
Filing date: 1900-05-22
Publication date: 1907-12-31
Anticipated expiration: 1924-12-31

Description

No. 875,314. PATENTED DEC. 31, 190'?- J. BIGELOW.

FILLED BAG SEWING MACHINE.

APPLICATION FILED MAY 22. 1900.

11 SHEETS-SHEET 1.

IV/ /VESSES PATENTED DEC. 31, 1907.

11 SHEETS-SHEET 2.

J BIGELOW FILLED BAG SEWING MACHINE.

APPLICATION FILED MAY 22. 1900.

l/V/E/VTOH. Jo/7w B/GEL 0/14 m M W W No. 875,314. PATENTED DEC. 31, 1907. J. BIGELOW. FILLED BAG SEWING MACHINE.

APPLICATION I'ILE D MAY 22. 1900.

11 SHEETS-SHEET s.

Q 1 1H I, 3 a "H "A. llll I 6 U 7 WIT/755555 No. 875,314. PATENTED DEC J. BIGELOW. FILLED BAG SEWING MACHINE.

APPLICATION FILED MAY 22. 1900.

11 SHEETS-SHEET 4.

I'V/T/VESSES N0. 875,314. V PATENTED DEC. 31, 1907. J. BIGELOW.

FILLED BAG SEWING MACHINE.

APPLIOATION FILED MAY 22. 1900.

11 SHEETSSHEET 5.

//VI E/VTOH I No. 875,314. PATENTED DEC. 31, 1907.

J. BIGELOW.

FILLED BAG SEWING MACHINE.

APPLICATION FILED MAY 22. 1900.

11 SHEETS-SHEET 6.

IV/T/YESSES No. 875,314. PATENTED DEC. 81, 1907. J. BIG-BLOW.

FILLED BAG SEWING MACHINE.

APPLIOATION FILED MAY 22, 1900.

11 SHEETS-SHEET 7.

a Q Q No. 875,314. PATENTED DEC. 31, 1907. J. BIGELOW.

FILLED BAG SEWING MACHINE.

APPLICATION FILED MAY 22. 1900.

11 SHEETS-SHEET B.

Q UPK No. 875,314. PATENTED DEC. 31, 1907. J. BIGELOW. FILLED BAG SEWING MACHINE.

APPLICATION FILED MAY 22. 1900.

' 11 SHEETS-SHBET 9.

PATENTED DEC. 31, 1907.

J. BIGELOW'.

FILLED BAG SEWING MACHINE.

APPLICATION I'ILED MAY 22. 1900.

11 SHEETS-SHEET 10.

JbH/v B/GELOVM UNITED @TATIES PATENT OFFFCE.

JOHN BIGELOW,- OF MINNEAPOLIS, MINNESOTA, ASSIGNOR TO UNION SPECIAL MACHINE COMPANY, OF CHICAGO,.ILLI NOIS, A CORPORATION OF ILLINOIS.

FILLED-BAG snwme-Mecmnn.

$pecification of Letters Patent.

Patented Dec. 31, 1907.

' Application filed May 22. 1900. Serial No. 17,552- i capable of holding the filled bags, grasping the folded tops thereof, feeding thesame to the sewin machine proper, sewing the bag top, and c ipping the thread; so that the bag will be delivered from the machine ready for shipment. Such a machine should be constructed and adapted for very rapid operation, and in order to permit the same and the rapid manipulation of the parts by the operator and in accordance with the hand movements that are required, it becomes necessary to add many novel features to the sewing machine as it is commonl known. Portability, is another feature whic it is desirable to secure, as a single bag sewing machine if capable of being moved about a mill will take care of the product of-a number of packers.

The difficulties that arise in this art are due to the Wei ht of the bags to be handled; the lack of uni ,ormity both 111- shape and size of the bags; the nature of the cloth or the paper from which the bags are made; the adjustments necessary in the sewing and feeding members; the necessity for stop ing and starting the machine frequently, an the weight and cost of the mechanisms that must be assembled to perform the various functions of a bag-sewing machine. These diffi culties I have avoided in the invention fully described and claimed hereinafter. v

My invention will be more readily understood by reference to. the accompanying drawings, forming part of this speclficati'on and in which,

Figure 1 is a front elevation of a filledbag sewing machine embodying my invention. Fig. 2 is a plan view thereof. Fig. 3 is anenl'arged sectional view substanially on the line as -:0 of Fig. 1. Fig. 4 i's'a horizontal section on the line .y y-" of Fig. 1. Fig. 5 is a vertical cross section on the line v -o of Fig. 1. Fig. 6 is a perspective detail of viewfof the cutter or clipper.

the trip motion. -Fi g. 7 is an enlarged vertical and longitudinal section on the line u u of Fig. 2, or w w of Fig. 5. is an enlarged horizontal section on the ine 2 -2? of F1g. 1. Fig. 9 is a detail view of .the work plate as seen from the line w:c

of Fig. 8. Fig. 10 is a cross-section on the line g of Fig. 8. Fig. 11 shows a smaller to der presser-foot. Figs. 12,13 and 14 are respectively plan, side, and horizontal sections of a modified presser-foot for the Fig. 15-is an end Fig- 16 is 'a plan view thereof. Fig. '17 is a section on the line of Fig. 15. Fig. 18 is a section on the line z z of Fig. 15. Fig. 19 is a view similar to Fig. 15 but showing the opsewing machine proper.

posite side orend of the clipper. Fig. '20 is a vertical section on the line y 'y of Fig.

'16. Figs. 21, 22; and 23 are details of the means for operating the feed-bar.

My invention may be briefly described as comprising-a frame carrying an adjustable automatic feeding table and a sewing head, which latter comprises a stitch-forming mechanism provided with a much longer work plate than usual, and which work plate the operator may arrange the flap of the bag when the machine is stopped, and which mechanism will automatica ly feed the bag Further the invention includes special adcarries or has associated with it an automatic bag starting and feeding mechanism wherein forward to the sewing mechanism when the machine is started.

justing devices, means for automatically controlling and stopping the machine, and also means for clipping or cutting the thread.

after a bag is sewed, which latter portion of the mechanism operates independently of the sewing machine save that for convenience itis made dependentupon the machine starting device or shifter.

' Other details and combinations included in the invention will be taken up in conjunction with the specific description of its main through sleeves 5 upon the upwardly -ex' tending brackets 6 of the foot pieces2. The

ion

from place to place in the mill upper ends of the guide posts are conne ted by the wooden strip 7 having metal clips 8 on its. ends. 9 and 10 are Wooden postserected upon the floor plank 3. and secured by one or more horizontal strips 11 and the board 7.

i These parts constitute a very rigid and yet a 1 ed to slide up and down upon the guide-posts a 4, being arranged upon 0 posite sidesjof the sleeve 5. The backs of t e brackets 13 are I provided with the racks 15, withwhich the pinions 16 mesh. These pinions 16 are fixed upon the shaft 17, having bearings in the tops ofthe brackets 6, and, rovided with a hand wheel 18 at one end.

' hand-wheel the brackets 13 and hence the tops of the brackets 6, and which shaft may table 12 may be raised and lowered. For securing the table at the desired elevation I provide the pawls 19to engage the pinion's 16. These pawls, in order that they may be 'adjusted at the same time, are preferably placed upon a single shaft 20, held in the be rocked by thehandle 21 thereon, which being thrown backwill withdraw the pawls from the pinions.

22 is a drawer arranged beneath the mid dle part of thetable 12 to contain the small parts and supplies for the machine. The age move from end to end of the table and tofeed or drag the bags along the top of the table I provide the endless belt 23 thereon. This may be a narrow cloth belt or a simple sprocket chain. It lies flat upon the top vof the table and at the middle is guided by low strips 24 on the tab atop, the same having their corners rounded so as not to interfere with the bag dragging over them.

- erably adjustable, as shown.

The table is provided with

hangers

25 and 26 for the

pulleys

27 and 28 of the belt. The pulley 27 is driven from the headof the machine. The hanger for'the pulley28is pref The sideba1'.It is not necessary'to hold the bag upright on the table, for the reason that the table is broadand smooth and the bags will stand thereon; but in order to keep the center or middle line of thet'op 0f the bag in line with .the work plate of the sewing machine, I prefer to provide a side guide-bar 30 near the top'of the'fram'e and against which thebags are'pressed when they are stood upon the'table; (Seev Fig.3). This bar is held in the forward ends of the arms 31 which slide in guides 32 provided therefor on' the top of the strip or board 7. The bar may be easily pulled out and adjusted at the right y turning the referably 42".

. parallel with the table, and locked by means of the cams 33, one of which is provided in each of the slides 32. To press the bag tops against the bar 30 I introduce a wedge-block 12 under the belt on the table top, thereby tilting the bags against said bar andbeneath the sewing head.

The sewing machine heady-The sewing machine head overhangs the feed table 12 and is arranged upon an overhanging bracket 34, secured'upon the upper end of the standard 9 of the machine frame. The sewing head has its base 35 bolted to the face of the bracket 34, and: comprises the usual arm 36, provided with bearings, for the operating shaft 37 and also for the needle and presserfoot. bars 38 and 39 at right angles thereto,

ing rod 41. I prefer to employ an ordinary WillcoX & Gibbs bag sewing head in my machine, and have so-shown the same, but

is pivotally secured to the block 44 a screw 45. The. block 44 and with it'the feed-bar may beiadjusted on the frame 43 The frame 43 is provided with a forked end which straddles the eccentric strap 43 of the eccentric rod- 43. This rod'is mounted on the eccentric on the driving'shaft at one end and at its oppositeie'nd is connectedby an adjustable connection 43 with a rocking head This head at its inner end is hinged to .and, the operating lever 40 with its connect head may be and supported by the machine frame and at its outer end is pivotally connected to the frame 43 The frame 43 receives a reciprocating endwise movement through the eccentric rod connection with the rocking head 43" and a forward and back motion from an I engagement with the circumference of the eccentric stra 43. The length of the stitch is determine -by the adjustment of the eccentric rod to and on the rocking head.

The sewing machine needle 47 is held in the usual way and there is no change in the arrangement of the lifter 48 of the presserfoot bar or in the tension device 49 for the thread. The departures from the usual structure of this ortion of the machine, the sewing head, resi es chiefly in the work-plate 46, the feed 45 and the presser-foot 50.

The work-plate, (see Figs. 1, 2, 3, 5, 8,

and 10.) The usual broad Work-plate is discarded and its lace is taken by the plate 46 secured to the at face that is provided for it I upon-the base of the arm 36. This plate 46 extends but slightly below the looper 42 and isvery narrow and very long. In order to give the plate strength I prefer to form the same as an angle iron is made, the bottom 46 giving the necessary rigidity. The outer. end of the work-plate which extends far to the intake side of the machine is supported by a long arm or extension 51 of the base 35. The end of the arm 51 is supported by a bracket 52 projecting from the top of the frame standard 10. On the end of the arm 51 I prefer to provide the downward incline 53, beneath the work-plate; the office of this incline being to press down the end of the bag as it enters beneath thework-plate. The work late is provided with the long slot 54 for the feed or feed-bar 45, and the plate is also provided with the needle-hole 55. The work-plate is preferably about twice as long as the top of the largest bag that is to be sewed, though its dimensions may be cut down if desired. One of the principal advantages of this workplateisthat the loo er of the sewing machine the needle.

and allparts near t e same are open to view and are freelyaccessible.

The feed-The feed-bar is nearly as long as the work-plate. It is preferably in one piece; althou h it may be made in two or more pieces adapted to be unhooked or disconnected, either for the purpose of repair or to stop one part of the'bar while that beneath the needle continues inmovement. The bar lies upon the bottom 46 of the workplate and slides back and forth thereon. It projects through the slot 54 in the workplate, and as before explained its' forward end is pivotally attached to the four-motion device of the sewing head. The end of thebar projects beyond the point of attachment with the said deviceand it is provided with the longer teeth 45 at a point just beyond The office of this part is to draw the chain stitch afterthe goods have passed beneath it. The other end of the bar is bifurcated or has a bifurcated attachment 45" and is held in place by sliding engagement with the pin 56 placed in the part 53 of the. arm-51 (see Figs. 8 and 9).

The middle of the bar may be held down by a clip 57. The whole forward edge of the bar istoothed or serrated. As the operating shaft37 of the sewing head is rotated the bar will be alternately moved out through the work-plate and toward the needle and drawn back and returned, to intermittently advance the goods or fabric upon the work-plate.

The resser-foot, (see Figs. 1, 2, 5, 8, 12, 13 and 14.)The presser-foot that is arranged uponthe inner end of the bar 39 is much longer than the corresponding part of an ordinary sewing machine, as it must be relied on to hold the mouth of'the bag up on both sides of the needle. I prefer to support the foot by a bracket arm extending up nearly to the top of the work-plate and having a pin on its underside adapted to slide through the hole 50 in the work-plate in order to assist in keeping the long fold in its proper position over the feed. The scam in. the edge of a bag is sometimes so bulky as to raise the presser foot and release the thinner part of the fold at the top of the bag when passing through the machine; and to avoid the difficulty arising from this cause when a long presser-foot is used, I prefer to construct the presser-foot as shown in the detail Figs. 12, 13. and 14. The foot is divided into two or more parts connected to the rigid part upon the end of the' bar 39. 58 is the yielding part. This is pressed down by the spring 59 and in order that it may not break at an abrupt angle with respect to the rigid part, the part 58 is pivoted u on the other end of the foot by means of t e side bars or extensions 60 and the pin. 61. This part 58- yields outwardly when the thick part of the bag arrives beneath it, so that the remainder of the presser-foot will hold the corner of the next bag firmly against the work-plate. As an additional precaution particularly for. paper bags, I may also use a light spring shoulder 62 extending through the presser-foot just in front of the needle hole 50'. a

Automatic bag starting andfeeding mechanism, (see Figs. 1, 2, 3, 5', 8, and 10 and 11.) Where the work-plate of a sewing machine is horizontal it is not difficult to feed the goods properly beneath the presser-foot, but when, as in a bag sewing machine, the work-plate occupies a vertical plane, and the tendency of the goods is always to drop away therefrom, it becomes harder to start the goods (the bag mouth) and hold it while it feeds to the needle. Hitherto the usual practice in sewing bags has been to take the corners of the bags in hand,-start one corner or edge under the presser-foot, and hold the other properly elevated while the bag is being drawn through past the needle. This process is both slow and unsatisfactory because of the irregularity of the stitching and the unevenness of the line of stitching across the top of the bag, which detracts from the appearance of the package.

'A very particular object of this invention is to arrange the machine so that the top of the bags may be folded and will thereafter be held by the machine and by it fed towards and under the sewing head presser-foot 50. For this purpose I arrange a folder 63 upon the long work-plate and between which and the work-plate the bag topis smoothly held to be fed towards the needle by the long feed bar 45. As will hereinafter be explained, this folder, which is also the fold supporter, may possess many different forms, but I prefer the construction shown in the drawings. This folder 63 is a thin-plate or bar, preferably of about the same length as the bag top which is to be operated upon. Several of these parts are provided with each machine, one for each size of bag, as I find it very convenient to be able to pass the finger around the ends of the folder to draw down the corners of the bag. The foot or bar 63 is detachably secured to the slide 64, working beneath the work-plate and carried by slide rods 65 extending through guide-holes or sleeves provided in the arm 51. The slide 64 is provided with one 'or more lugs 66 containing screws 67 to enter the notches or slots 68 in the lower edge of the folder 63,

which is provided with countersinks 69 to receive the heads of the screws (see Fig. 10)

which really secure the folder. When a long folder 63 is used it is fastened by all three screws and extends beyond the slide plate 64 on both ends. When a short folder is used it is secured by two of the screws only, and in order to make room for the operators finger back of the folder between the same andthe slide 64, said slide is provided with recesses 70, the rearedges of which come out flush with the work-plate when said slide is pushed forward to move the folder 63 away from the work-plate 46. On the rearpart of the slide 64 is an arm 71 extending beneath the frame-arm 51 and connected by a link 72 to the operating lever 73.

74 is a lug on the slide 64 and wherein a rod 75 is secured, the latter extending through the frame-arm 51 and provided with t a head 76, between which and the arm 51 is a strong spring 77, which is the spring of the folder 63, the same holding said foLder firmly against the work-plate. The bag tdp may be placed in the machine with a double or a single fold, but I prefer to simply carry the top of the bag down over the top of the folder, as shown in Figs. 3 and 10. The fold of the bag slides along and off of the folder as the feed bar reciprocates, and the bag enters evenly beneath the machine head presserfoot, being held at the proper level throughout the feed movement.

The fold holder.Another element of the bag starting mechanism is the fold holder, comprising the rod 78 parallel with the folder and preferably longer and held by the arching arms 79. This bar when in the position shown in Figs. 3 and 10 holds the bag up close to the outer side of the folder so that there will be no difficulty in assing the outer fold of the bag top beneailh the other presser foot. To insure the holding of the outer fold towards the work plate as the fold passes off from the end of the folder, I prefer to provide the end of the fold holder 78 with anub or enlargement 80, extending towards the work-plate andjustopposite the end of the resser-foot 50. It is obvious that the fold-holder rod 78 must be gotten out of the way when the folder is moved out to receive the fold of the bag, and tothis end I pivotthe arched arms 79 in slotted lugs 81 on the frame arm 51 and connect the lower inner ends of the arms by pivots 82 to the slide 64, so that when said slide is pushed out with the folder the rod 78 is automatically lifted into the dotted position (see Figs. 3 and 10).

The slots 81 in the In s 81 permit the straightenin of the togg es formed by the lower ends 0 the arms and the lugs or brack .ets that extend up from the slide 64. Means may be provided for throwing out the folder and lockin Hit in such position until the fold is arrange thereon, but as such an arrangement would require several distinct hand movements on the part of the operator, I prefer to place the operating arm or lever 73 on a vertical shaft 83 placed in bearings 84 on the front of the frame standard 10 and at the lower end of which is the shiftinglever 85.

This lever is adjustable up. and down on the. e

lower end of the shaft 83 and extends out from beneath the feed table 12. The lever works sidewise and is in convenient positioning employed in arranging the mouth of the,

bag and'folding the-same over the folder. As the operator folds the cloth upon the folder he may pull down the corners which always extend out beyond the sides of the bag, and when the bag is sewed and flattened out its to will take an arched form. If the edges of t e top of the ba are ke tparallel with the bottom of the folder, the ag, when sewed and flattened will be straight across the top. When the machine is being used to sew paper bags either the folder or the fold holder may be removed from the machine, because the paper being stifi will not sag down from the feed and needs only to be hel against the work-plate. I find it of advantage to notch the inner end of the folder 63 so that the operator may hold the folds together when the machine is started, so that the outer fold may not drag back. In place of the'folder supported from beneath, I may arran e a support at the top; and, a very good orm of folder is one that is supported from its end at the outer end of the "frame arm 51. sidewise movement forward and back,-

Such a folder may be-adapted to The driving connections.-The power for i the machine may be derived from'an electric or other motor arranged upon the fioor plank 3 of the frame, or said frame may carry a counter shaft 86 to be driven by a belt and carrying a belt pulley 87 from which a round cord or belt 88 extends to pulleys-upon the head shaft 89. The pulleys 90 and 91 on the shaft are respectively loose and-fast upon said shaft, and 92 is a shifter lever ivoted on the standard 9, orthe foot of the racket 34, and by which the-belt may be shifted from one pulley to the other to start or stop the machine. The shifter lever 92 carries a brake shoe or pad 93 that presses against the side of the fixed pulley 91 when the belt is thrown onto the loose pulley. The head shaft is carried inbearings 34 on the bracket 34 and on its forward end is provided with a'bevel gear 94 meshing with a like gear95 on the shaft in order that it may be started and stopped in exact time with said shaft 37 and the arts dependent thereon. Therefore I provide the shaft 89 with a worm 98 to drive the worm gear 99 on the u per end of the telescoping shaft 100. The ower end of this telescoping shaft (see Fig. 7) is connected with the shaft 27' of the belt pulley 27 by

bevel gears

101 and 102. The ends of the shaft 100 are held in

yokes

103 and 104 journaled respectively upon the

shafts

89 and 27 A'slow movement is thus communicated to the feed belt of the table and this movement remains constant and positive regardless of the height to which the table is adjusted. The shifter lever 92 is operated from a shaft 105 similar to the shaft 83 (Figs. 3 and 8). At the lower end this shaft has a knee lever 106 similar to the lever'85, and at the upper end of the shaft is an arm 107 that is con-- nected with the lever 92 through an evener block 108 and link 109. I may here call attention to the hinged ends 85 and 106" upon the levers 85 and 106 (see Fig. 2). These parts extend from beneath the table and are adapted to be folded back under the same out of the wayof persons passing when the machine is not in use and adapted to yield if struck by accident.

The controlling de'v'ices.An operator may become so skilful in handling the machine as to be able to start and stop the same exactly as should be as the bags pass through the machine, but as it is desirable to relieve the operator as much as possible I provide means for automatically stopping the machine when a bag has rogressed so far as to be entirely removed f i'om the folder and before it has wholly passed the needle. This device is dependent upon the bag for its operation. It comprises the trigger-lever 110 pivoted on the frame part 51.- The forward end of this lever extends nearly to the work-plate and is so weighted that when the evener block 108 is drawn forward in throwing the belt onto the fixed pulley 91, the trigger end 111 of the lever 110 will rise behind the block 108 and lock the same and the shifter 92 in the running position with the belt on the fixed pulley. This locking of the shifter however de ends on the lifting of the gravity trip 112 eit er by hand, or, as in practice, by the bag that begins to move o'ffof the folder 63 as soon as the machine is started by the throwing of the belt upon the fixed 'lpulley. The trip 112 hangs beneath the wor -plate at apoint between the bag starting mechanism and the.

sewing-head. The trip is fixed on the little rocking shaft 113 in the frame and which shaft carries an adjustable arm 114 that is adapted to raise the forward end of the lever 110 when the trip 112 falls or hangs down. The raising of the lever 110 disengages the evener block 108 and a spring 115 draws the shifter 92 back and throws the belt 88 upon the loose pulley, thus stopping the machme, the brake setting against the fixed pulley. The arm 114 and the lever 110 engage through the medium of pins 116 by which the leverage is carried close to the rock shaft 113. The trip 112 hangs down below the top of a bag resting on the table and hence as the bag moves along the trip will be lifted,

thereby depressing the arm 114 and permitting the forward end of the lever 110 to drop, so that the trigger will lock the shifter 92 and the machine will continue to run when ressure is removed from the knee operated ever 106. Now as the bag passes along the table and is drawn from the folder so that the rear end of the fold is beneath the presser foot 50,

. the bag will pass from under the trip 1 12 and said trip w 1 fall, instantly. throwing the lever 110' and disengagin the shifter 92 to stop the machine. As the trip 112 has a fixed position in the frame the body of the trip is made so that the trip will work wlth the narrowest bags that are to be sewed, and to ada t the trip for operation with wider bags, tlhe corners of wiich extend further beyond the rounded tops 9f the bags, I provide the trip with an extensible piece 'or bar 1 12' so that the tri will not drop until the last or outer point of tlie large bag fol-d is beneath the presser foot 50.

1 17 is a hand cam mounted on the bar 1 10, i

to ride on the cross-portion 118 of the frame or arm 51, and which cam may be thrown back at any time to disengage the trigger and stop the machine regardless of the position of the trip 112. ability to open the presser foot and folder of the machine at any time enables me to stop the machine and take out the bag at any stage of the sewing, which is sometimes made necessary by the improper action of the sewing members or imperfections in the thread or twine that is used.

The clipper or thread cutting mechanism,

This device and the v (see Figs. 1, 2, 5, 8, 9, and 15 to 20.)-The remaining element of my machine .is the mechanism employed for automatically cutting the thread or chain of stitches between the bags; that is the bag that has been sewed and the one still in the machine. This mechanism is preferably arranged at the delivery end of the work-plate. Either the bracket 34 or thearm 51 which extends back of the sewing head is provided with a plate or foot.119, and to this is attached a block 120 having three

arms

121, 122 and 123, the latter being provided with the upwardly extending arms 123, 123". The arm 121 carries the pivot pin 124 for the yoke lever 125, the lower end of which engages with the end of the arm 126 arranged on the shaft 105 and opposite to the arm 107. The .upper end of thelever 125 is connected by a link 128 to the upper end of a short lever 129, the lower end of which is pivoted on the pin 130 in the side of the block 121. These parts between the shaft 105 and the pin 130 constitute the means for setting the clipper when the machine is started by the throwing of the knee lever 106.v The clipper comprises the knife or crushing edge 132 and the cylinder 133 upon which the knife closes. The cylinder 133 is fastened in a pocket that is drilled therefor in the bottom of the arm 123, which pocket cuts through the face of the arm or block so that the surface of the hardened steel cylinder projects slightly beyond the face of the arm 123. The cylinder is held in place by a screw 134 upon loosening which the cylinder. may be taken out or turned slightly to present a fresh surface to the cutting edge of the knife. The knife 132 is mortised into the weighted end 135 of the clipper arm 136. The mortise or pocket 135 for the knife 132' is preferably made partly in the solid part of the arm 136 and partly in the cap OI block 135" upon the inner side thereof. The knife is secured by the adjusting screw 13 7 and the set screw 138. The clipper arm 136 is provided with bosses or a sleeve 139 journa ed upon the short shaft 140 extending between the i1 per ends of the arms 123 and 123". On the same shaft '140 is the escapement cam 141 provided with a hand setting lever 142'. The sleeve 139 and the cam 141 carry the

arms

143 and 144 res ectively.

These arms are held together by t e buffer- 160 and'161 in the rear ends ofthe leve'rs' spring 145 arranged between the arm 143 and the head of a curved bolt or pin 146 that is fastened in the part 144.

147 is a strong sprlng coiled around the boss or hub of the escapement cam 141 and fastened to said cam and to the arm 123 so as to throw the cam forward and thereby v throw down the clip er arm-136. ;The cam 141 is provided Wit a laterally extending lug 148', which, when the cam is raised or set With the arm 136 in its raised position, is rein Fig. 15 by of the knife, (see- Figs. 8, 15 and19),

-moved from the arm 123', but when-the cam 141 is released said lug 148 will strike said arm 123 before the knife of the clipper strikes the cylinder or cutting surface 133, after which the clipper arm continues its movement because of its momentum. At

this time the spring145 is compressed and the knife strikes the cylinder 133 and is then instantly withdrawn to'the position shown the reflex action of the spring 145. 'i

149 is a stop screw provided on the clipper arm 36'to strike the face of the block when the knife is thrown down, see Fig. 20. By means of the screw 149 the device is so adjusted that the sharp edge of the knife just meets the surface of the hardened-cylinder 133 and then rebounds, so that the knife is not dulled except by the actual wear, of the- As the thread or chain of thread thereon. stitches, comes from beneath the presserfoot 50 it is held up by the bag which has passed the clipper and by a small ledge 150 that is rovide upon the work-plate so that the th ead will always ,lie or stretch across the cutting surface 133 ready for the .descleilit e lever 129 before referred to carries the short trigger lever 151, the rear end of which is weighted and the forward end of which is notched, (see 152) to engage the shoulder 153 on the side of the escapement cam 141. This takes place when the knee shifter'106 is thrown to move forward the link 128 and the lever 129. The trigger 151-then engages with the esca ement cam 141 to rotate the same untilit 1s caught and held bythe latchlever 154, the forward end of which engages a shoulder 155 on the cam 141, leaving the cam under thetension of the spring 147 with theiclipper arm in a raise'dposition. When the parts are in thesepositions it is only necessary to free the latch 154 to allow the knife to descend and cut or clip the fthread and immediately open so as not to interfere with the next bag. The release of the latch is accomplished automatically and depends upon the passage of the ba 156 is a rock shaft arranged in t e arms 122 and 123 adapted to be operated by the gravity. arm or trip 157. Said shaft 156 also carries the adjustable rocker arm 158 provided with the cross pin 159 that is adapted ,to successively engage the pins 151 and 154, thus when the arm- 157 drops the settingtrig1 out of-thepat 4 er 151 will first be moved. of the shoulder 153 of the escapement cam and then the latch 154 will be thrown to release; said cam and the knife.' The arm 157 is extensible, as shown in Figs. .1,'and 15 to 20,- and swings below i 'the level of 'the work-plate of the sewin head (see Figs. 1 and 19.) The clipper having previously been set up by the start' ing of the sewing machine the moment that the sewed bag moves out from beneath the arm 157 said-arm will drop or swing back of its own weight and instantly release the knife to cut the thread between the two bags. This clipperis in no wise a burden or drag upon the sewing mechanism. It is not a driven device, and the only power necessary for its operation is derived from the shifter lever which the operator throws with his le or knee against the resistance of the shifter spring 115 and the small spring 147 of the clipper.

The foregoing description so fully defines not only the structure but also the sequence of operations, that'for a thorough understanding of the machine and its functions a brief summary alone is necessary.

The driving shaft 86 having been set in motion with the belt 88 upon the loose pulley of the head shaft, the machine is ready for use. The operator places a bag upon the table and adjusts the height of the table to the height of the'bag, arranging it so that sufficient cloth is left at the top to fold over the folder 63. The operator then throws out the lever 85 with his right knee, thereby projecting the folder 63 and raising the holder 78, whereupon he folds the top of the bag over the folder 63, drawing the corners out back of said folder by inserting his fingers at the ends of said folder. He then releases the shifter lever 85, whereupon the folder 63 returns to the work-plate 46 and presses the inner fold of the bag against the feed in the work-plate. The operator then moves his left knee over against the shifter lever 106, thereby throwing the belt 88 upon the fixed pulley of the head shaft of the machine, starting the sewing mechanism and the feed, whereupon the table belt, and the feed mechanism in the work-plate will carry the bag towards the sewing mechanism and beneath the presser foot 50, which latter guides the corner of the bag fold to the needle. After a small movement of the bag upon the table the same will engagewith and lift the trip 112, thereby releasing the trigger 110 so that it may catch the evener block of the shifter mechanism and lock the belt on the fixed pulley. The operator may then release the lever 106 by moving away therefrom and the machine will continue to sew until the trip 112 drops off of the bag and disengages the trigger from the shifter to permit the throwing of said shifter by the shifterspring 115 to 'stop the machine. then takes the next bag and repeats the folding and starting operations, whereupon the second bag starts towards the sewing mechanism and the sewing of the first bag is completed. As the sewed bag leaves the sewing mechanism a chain of stitches will The operatorbe formed between the two bags and this chain will draw across the ledge upon the work-plate and across the clipper block in readiness to be cut by the knife when the ram 157 falls, after having been previously raised by the passing of the bag. The clipper may be set by hand and released by hand if desired, and the machine may be stopped at any time by throwing the hand trip 117 to disengage the trigger 110, whereupon the bag may be removed from the machine after lifting. the presser foot.

Various modifications of my invention will readily suggest themselves to one skilled in the art/and I therefore do not confine my invention to the specific construction herein shown and described.

Having thus described my invention, I

claim as new and desire to secure by Letters Patent;

1. The combination, in a filled bag sewing machine, with a sewing head, of a table open at one side to receive thefilled bags, means for simultaneously raising or lowering both ends of the table and thereby maintaining its horizontal position and a driven carrier belt arranged u on said table and adjustable therewith, an adapted to continuously move the filled bags along said table and past said sewing head.

2. In a filled bag sewing machine, the combination, with the bag feeding table, of the sewing head overhanging said table, a suitable frame or support for said table and head, and the adjustable side guide-bar by which the tops of the bags are kept in line with said sewing head, substantially as described.

3. In a filled bag sewing machine, the com A bination, with the bag feeding table or carrier, of the sewing head overhanging the same, a suitable frame, means for driving said head and feedin the bags upon said table, and the side gui ve-bar parallel with said table between the same and said head and adjustable back and forth in its parallel relation to said table and head, substantially as described. 1

4. In a filled bag sewing machine, the combination, with the bag feeding table or, carrier, of the sewing head overhanging the same, a suitable frame, means for driving said head and feeding the ba s upon said table, the side guide-bar parallel with said table between the same and said head and adjustable back and forth in its parallel relation to said table and head, and means for locking said bar, substantially as described.

5. In a filled bag sewing machine, the combination, with a suitable frame, of the sewing head overhanging the top of said frame, the bag table beneath said head, the endless belt upon said table, common driving means for said head and said belt, a starting shifter projecting from beneath said table for move menu-laterally by the leg of the operator, and

' pawls for said pinions, substantially as debination with a suitable frame open at one.

scribed. I

scribed.

7. In a filled bag sewing machine, the combination, with the frame carrying the sewing head and provided with'guide-posts 4, of the bag feeding table the endless driven belt operating thereon, the brackets 13, having sleeves slidable on said'posts, the racks upon the vertical parts of'said brackets, the shaft 17in said frame, the pinions fixed thereon and engaging said racks, and the pawl shaft and pawls, substantially as described.

8. In a filled bag sewing machine, thecombination, with the frame comprising a base aving standards in substantially the same lane, of the sewing head, a bag-mouth older, the bag feeding table with a driven carrier thereon arranged upon the front of said frame, controlling means projecting from the front of said frame, and driving and adjusting means for said head and table on the b ack of said frame, substantially as de- 9. In a filled bag sewing machine, the comside, of a sewing head arranged thereon, an

open sided table arranged beneath said head, means for simultaneously raising or lowering both ends of said table and thereby maintaining the table in a horizontal position, a

- belt carrier arranged upon said table and ad justable therewith, and means for driving said'carrier.

10. In a filled bag sewing machine, the

' combination, with the frame, ofthe sewing head thereon, the ba table upon said frame beneath said head, t e belt operating upon combination, with the frame, of the verti-j said table, means for adjustingv the height of said table, the driving shaft for said head, and an extensible shaft through the medium of which said belt is driven from saiddriving shaft, substantially as described.

11. In a filled bag sewing machine, the

cally adjustable ba carrier, the sewing head arranged upon sai frame and overhanging saidtable, the driving shaft for said head, a worm thereon, a worm gear in engagement with said worm, and the shaft extending from said gear to-drive said carrier and having a sliding'connection therewithv permitting the "vertical adjustment of said carrier, substantially as described.

12. In a filled bag sewingmachine, the combination, with the frame, of theba 'ta ble, the belt upon said table, the pu leys therefor on said table,.means for adjusting said table vertically, the sewing head ar- .ranged above said table, the driving shaft for said head, and the telescoping shaft 100 having its ends held'in yokes journaled upon said driving shaft and the shaft of one of said pulleys, and gears upon said shafts, substantially as described.

13. The combination, with a suitable support or frame, of a sewing-head provided with a stitch-forming mechanism, a bag-top folding device, a long work-plate, an extended serrated feed-bar, means for. operating said bar and means for holding a folded bagtop against said work-plate.

.14. The combination with a suitable support or frame, and a sewing head provided with stitch-forming mechanism, of means for folding the mouth of a bag, means for maintaining the fold, and means for automatically feeding the folded bag-mouth to the stitch-forming mechanism.

' 15. The combination with a suitable'sewing-head provided with stitch-formingmechanism and with a work-plate and presserfoot, of a bag top folding and fold-holding device, and means for automatically feeding a folded bag-top from the folding and hold ing device to the stitch-forming mechanism.

16. The combination with a table adapted to support filled bags and means for moving the bags thereon, of a stitch-forming mechanism, a bag-mouth folder, means for maintaining the fold in the bag-mouth, and means for feeding the folded mouth of the bag to the stitchsformin mechanism.

17. In a ed-bag sewing machine, the combination with the stitch-forming mechanism, of a ba -mouth fol and holding mechanism, an means for fee ing the folded bagmouth therefrom to the stitch-forming mechanism.

18. In a filled bag sewing machine, the

combination with bag feeding means, of a stitch forming-mechanism, a bag-folding and holding mechanism, means for feeding a folded bag-mouth therefrom to the stitch-forming mechanism, and a clipper, substantially as described.

19. In a filled-bag sewing machine, the combination with a stitch-forming mechanism, of a bag to folder, means for maintaining the fold in t e top of the bag, and a feedmechanism arranged to automatically feed the folded bag-top to the stitch-forming mechanism.

20. In a filled bag sewing machine, the

combination with a stitch-forming mechan-' ism, of a folder, -means for pressing the bagmouth upon said folder, and means for feeding the folded bag mouth from said folder to said stitch-forming. mechanism.

21. In a filled-bag sewing machine, the

combination with a bag-feed, of a stitch-- forming mechanism, a work plate, a presserfoot, a bag-mouth folder, and an extended combination, with the bag feed, of the sewing machine proper, having an extended workplate and feed, the bag holder upon the extension of said work-plate, and means-for moving said holder out of the way to permit the placingiof the bag top, substantially as described.

23. In a filled bag sewing machine, the combination, with the sewing machine provided with an extended work-plate and feed, of a spring controlled folder upon the extension of said work-plate, substantially as described.

24. In a filled bag sewing machine, the combination, with the sewing mechanism, of the extended work-plate, the extended fourmotion feed, and a fold supporting device upon the extension of said work-plate in advance of the sewing mechanism and acted upon by said feed, substantially as described.

25. The combination, with the sewing mechanism, of the work-v late, the intermittent feed device provider therein, the folder in advance of the sewing mechanism, and arranged to be acted upon by the feed-device, and means for moving the folder away from the work-plate.

26. The combination, with the sewing mechanism, of the long work-plate, the long intermittent feed device PIOVldGd' therein, a -folder upon the extension of said work-plate, means for moving said folder away from said work-plate, and the fold-holder, substantially as described.

27. The combination, with the sewing mechanism, of the extended work-plate and the extended feed mechanism, the folder, the fold holder, means pressing said folder and holder towards said work-plate, and means for projecting the same away therefrom to recelve the fold of a bag, substantially as described.

28. In a bag-sewing machine, the combination with stitch-forming mechanism, 0 automatic bag folding and feedingmeans for the top of the bag, com rising stationary fold-holding parts, means or separating said arts to receive the fold, and driven means for feeding the fold therefrom to the'stitchforming mechanism.

29. In a filled bag sewing 'machine, the

I I combination, with a bag table and carrier, of

a sewing mechanism, a folder having separable parts for receiving and holding the fold when made, and means for removing said fold to the stitch-forming mechanism, substantially as set forth.

, 30. In a filledbag sewing machine, the combination, with the bag feed of the stitch forming mechanism, provided with an extended work-plate and feed mechanism, and. a bag folder acted upon by said feed on the extended part of said work-plate, substantially as described.

31. In a filled-bag sewing machine, the combination, with the bag feeding device, of a stitch-forming mechanism having an extended work-plate and feed mechanism, a

folder, means for driving said stitch-forming mechanism and said feed mechanism, means for stopping the same to permit the placing of a bagtop upon said folder, and means for insuring the engagement of said feed mechanism with the folded bag top to feed the same to the stitch forming mechanism.

32. In a filled-bag sewing machine, the combination with the bag feed, of a stitchforming mechanism provided with an extended work-plate, a folder, and means cooperating therewith to take the folded bag top from said folder and feed the same while in a folded condition to the stitch-forming mechanism.

33. In a filled-bag sewing machine, the combination, with bag carrying means, of a sewing head comprising a stitch-forming mechanism, an extended work-plate and feed mechanism, a folder, and a fold holder acted upon by said feed mechanism, for the purpose set forth.

34. In a filled bag sewing machine, the combination, with bag carrying or feeding means, mechanism, an extended work-plate and an extended feed mechanism, and the fold pressing means provided upon the extended por tion of said work-plate and supported upon the rear thereof, substantially as described.

35. In a filled bag sewing machine, the

of a sewing head comprising a sewing combination, with a sewing machine proper,

of an extended work-plate therefor containing a feed mechanism, a folder, and a fold holder, and means operative upon the back of said plate to close and open said folder and holder, substantially as described.

36. In a filled ba sewing machine, the combination, with a bag feed, of the sewing head comprising a sewing mechanism, a

f work-plate, a driven feed mechanism and stationary presser means supporting the full width of a bag top preparatory to the feeding thereof to the sewing mechanism and wherefrom the bag top is automatically fed to said sewing mechanism, substantially as described.

37. In a filled bag sewing machine, the combination with the transversely separable members to hold the bag top, of a feed mechanism to move the bag top therefrom, substantially as described.

38. In a filled bag sewing machine, combination with the transversely se arable members to hold the bag top, of a feer mechanism operating upon the fold between said the