US1629522A - Means for slitting sheet material - Google Patents

Description

ay 927 T. B. MUNROE MEANS FOR SLJT'IING SHEET MATERIAL 5 Sheets-Sheet; 1

Filed Sept. 4 1925 May 24, 1927.

T. B. MUNROE MEANS FOR SLITTING SHEET MATERIAL Filed Sept. 4. 1925 5 Sheets-Sheet 2 \m a m 24 1 J May 9 T. B. MUNROE MEANS FOR SLITTING SHEET MATERIAL Filed Sept. 4. 1925 5 Sheets-Sheet 3 May 24, 1927. T. B. MUNROE MEANS FOR SLITTING SHEET'MATERIAL Filed Sept. 4. 1925 5 Sheets-Sheet 4 '24 May 1927 "r. B. MUNROE MEANS FOR SLITTING SHEET MATERIAL Filed Sept. 4 1925 5 Sheets-Sheet 5 Patented May 24,1921.- UNITED STATES PATENT OFFICE.

- rananwar B. Mormon, or CHICAGO, ILLINOIS, ASSIGNOR TO humane acomrmv,

nm, or cmcaeo, ILnmoIs, A comoaa'non or DELAWARE.

' mums ro e sLI'rTINe snnnr MATERIAL.

Application med September- 4, 1925. Serial No. 54,528.

, This invention relates to mechanisms for slitting and cross cutting a continuously moving Web of material, and has for its object to improve the procedures which have been heretofore proposed.

With this and other objects in view,.the invention consists in the novel details of construction and combinations ofparts more fully" hereinafter disclosed and particularly pointed out in the claims.

Referring to the accompanying drawings forming a part of this specification, in which like numerals designate like parts in i all the viewsparts;

Figure 1 is a diagrammatic plan view 'partially broken away of a slitting and cross cutting," apparatus, made in accordance with this invention;

Figure 2 is a plan View of a-traversing carriage and trackway adapted to be used in connection with the apparatus shown in Fig 1; v g

igure 3 is a side elevational view of the parts shown inFig. 2;

Figure-4 is a detail top plan view of the traversing carriage and its associated parts;

Figure 5 1s a sectional view taken on the line 55 of Fig. 4 looking in the direction of the arrows;

Figure 6 is an enlarged s de elevational View of the cutter disk and its associated Figure 7 is an end elevational view of the 3 parts shown in Fig. '6;

Figure 8 is a detail view illustrating the connection between the traversing carriage and the operating means therefor;

Figure 9 is a detail v1ew partly in section of the target controlling the rotary electric motor for the traversing carriage; FigurelOis a side elevatlonal view of the target mechanism shown in Fig. 9;

I Figure 11 is a sectional view taken on the better understood it is said :-It is now well known thatthere is on the market sheets of fibrous material known as Celotex which are used as a substitute for lumber, for

.wall boards, and for many other purposes,

and that these sheets are made out of bagasse, or the waste fibers derived from sugar These said bagasse fibers are cane stalks. floated in water to and over a sheet formmg machine, whereupon' the sheets are formed in widths of some 8, 10 or 12 feet and continuously, so that as the wet sheets are passed through a drier, they may be some 10 or 12 feet wide and say from 600 to 1000 feet long before the are thoroughly dried. Owing to these a normally, large dimensions of the manufactured Celotex sheets, it is necessary to cut them up into suitable lengths, and these len ths or dimensfons usually produce boar s of about say/1 feet wide and from 6 to '8, 10 to 12 feet long, according to the uses to which they are to be put. As the original finished Celotex she'ets\are, generally about inch 10 feet long.

Therefore, this invention when more continuously cutting the original sheets while they are in motion and coming from the drier into suitable dimensions.

provided with a plurality of knife edged disks which slit the sheet lengthwise as it travels from the drier, all as will appear in thickness the cut boards are usually say A IIlCh 1n th1ckness, 4 feet wide, and 8 or I Briefly stated, the invention consists In a machine, 1

specifically stated relates to a: machine for more fully below. After the original sheet is thus slitinto say three strips each 4 feet wide, while it is still in motion, atraversing mechanism also provided with a knife edged cutting ,disk cuts the .slitted strips 'perpendicularto their line of motion into predetermined lengths, and thusforms the above mentioned boards of'say 4 feet wide and from 6 to 10 01' 12 feet long.

Referring to the accompanying drawings and more especially to Fig. 1, the traveling sheet as it comes from the drier is indicated at l, the slitting mechanisms are indicated at 2, the slits in the sheet are indicated at 3, the disk cutter and its associated arts which cuts the slitted sheets crosswise 0 their path of travel is indicated at 4, while the cutsmadeby saidcutter 4a is indicated at 5, and

the cut or formed boards of proper dimensions are indicated at 6. After the boards 6 are thus cut into proper dimensions they are received upon the rollers 7 which are turned by suitable power (not shown) and which deliver said boards 6 onto the sprocket chains or cross conveyor indicated at 8 which chains are provided with the dogs 9 adapted to catch against the edges 10 of the boards 6 and to move the latter in a direction perpendicular to the original line of travel,

all as indicated by the arrow 11 in Fig. 1.

At 12 is indicated the traversing mechanism for carrying the cutter 4 across the path of travel of said sheets 1, to sever the slitted boards 6. Said traversing mechanism is pivoted at thepoint 13 for a purpose which will be more particularly described below. Suiiice it, however, at this point to state that beneath the slitt-ed sheet there is disposed a pair of steel supporting plates 15'and 16 separated by a slot or space 17, in which slot 17 operates the cutting mechanism4 as will be presently described.

Referring now more particularly to Figs. 2 and 4, the track or frame 12 of the traversing mechanism above mentioned and which is pivoted at the point 13, is supported on the concrete block 20 at said point 13 by the pivot pin 22 and by the block 21 and the circular or arcuate member 23 with which the pillar 21 is provided. This said track or frame 12 is provided with two supporting rails 24 and 25.. 0n the rail 24 rests the grooved wheels 26 and 27 and on the rail rests the grooved wheels 28 and 29, while the shaft 30 supports the wheels 26 and 28 and the shaft 3lsupports the wheels 27- and 29.

0n the ends of-the shafts carrying the I wheels 26 and 27 are disposed the bearing blocks 32 and 33, respectively, and these bearing blocks support side frames 34. On

- the ends of the shafts carrying the wheels 28 and 29 are disposed the bearing blocks 35 and 36 and from these bearing blocks are supported the side frame 37. Tying the side frames 34 and 37 together and disposed parallel to the shaft 30 is the end frame member 39; while tying the other ends of the side frames 34 and 37 togetheris disposed the end frame member 40, as illustrated. At the corner between the members 37 and 39 is disposed the bracing member 41, at the corner connecting the frame 34 and 39 is the bracing member 42, at the corner connecting the frame members 34 and 40 is the bracing member 43, and at the corner connecting the frame members 37 and 40 is the bracing member 44. Disposed underneath the members 34, 37 and 40V and rigidly secured thereto is a flat steel plate.

8 45, as will be clear from Figs. 2, 4 and 11.

To this plate 45, is ivoted as at the point 46, the supporting. p ate 48 of the irregular shape shown in Fig.4. Thatis to say, this masses plate 48 is provided with the straight sides 49, 51 and 52 and the curved back edge 53, as shown, and supports the cross cutting mechanism. This said plate 48 lies in a horizontal plane as best seen in Figs. 2, 4 and 11, and mounted thereon is the electric motor 55 provided with the shaft 57 on is another sprocket wheel 66 over which.

said sprocket chain 64 also passes. See Figs. 4 and 5. Mounted on the plate member 48 is ELAfOOt plate 67, see Figs. 4, 5 and 11, and rigid with this foot plate 67 is the upstanding bracing member 68 to which is secured a casting 69, see Fig. 4, provided with the bearings 70 and 71 for said shaft 65. Bolted to the member 68 as at 75 is the member 76 rigidly secured to the shoe 77 provided with the steel anvil blocks 78, all aswill be clear from Figs. 4, 5, 12' and 13. Also mounted on the shaft 65 is the disk cutter 79, one edge of which extends up throughthe slot between the anvil blocks 78 as clearlyshown in Figs. 5 and 12. p The member 81, Fig. 4, connects the shafts 62 and 65 so as to insure that the sprocket chain 64 and its associated parts will run smoothly.

From what has now been disclosed and referring more particularly to Figs. 5, 12 and 13, it will be observed that the slitted sheet 1 is cross cut by the disk cutter 79-, see Fig. 12, as said sheet passes underthe anvil blocks 7.8 and over the supporting member 83. Referring more particularly now to Fig. 6 it will be observed that the cutter 79 after severing the slitted sheet 1 divides it into two parts 84 and 85, which are separated from each other in different horizontal planes. That is to say, the upper part or edge 84 passes up over the mem er 86 and the other part 85 passes down over the projecting member 83, see Figs. 5. 6, 12 and 13. It will be observed fromFigs. 5, 6, and 13 that the bolts 75 secure to the member 68 the member 76, which is provided with the curved supporting member 86 above mentioned, over which the upper portion'84 of the sheet 1 passes. In other words, said member 76 is provided on one side with a curved member 86 to guide upwardly the portion 84 of the sheet and it is provided on its other side with the member 87 to guide downwardly the-portion 85 of the slit-ted "govern the movement of the sheet 1 to the cross cutting disk 79, see Fig. 6.

Fromvwhat has now been disclosed and referring back to Fig. l it will be clear that if the traversing mechanism 12 is swung on, its pivot 13, by any suitable means such as the hand wheel and worm gear 90, the cutting mechanism 4 including the disk cutter 79 which does not show in Fig. 1, may be kept always above the slot 17, as it is made to traverse the path of travel of I the sheet 1 and thus may'the slitted on shaft 103, transmitting portion 6 of the sheets llbe properly cut off into boards of the predetermined dimensions described above. That'is to say, the cutting mechanism 4 of Fig. 1 is automatically reciprocated across the path of travel of the slitted sheets after the mechanism 90 has swung the said traversing mechanism 12 on its pivot 13 to the'proper angle which will cause the cutting mechanism 4 including the disk 7 9 to follow the path of the fixed slot 17. This angle to which the traversing mechanism must be set, depends upon the speed of the sheet, and a table of angles for given speeds is empirically made out, whereupon for any given speed the corresponding angle becomes fixed. \Vhen th s is done, then the cutting mechanism 4 1s automatically r'eciprocated in thefixed slot 17 by the following means.

Referring more particularly to Figs. 2 and 3, 100 indicates a motor provided with a inion, 101 meshing with gear 102 mounted ower to one member of the magnetic clu ch 104, transmitting power to the shaft 105, on which is mounted the gear 106 meshing with the gear 107 rigid with the shaft 108 carrying the gear pinion 109. On the other end of sa1d shaft 108 is also a companion gear pinion 110. The pinion 109 meshes with a gear 111 beneath it, and carried by the short shaft 112, as best shown in Figs. 3 and 14. In like manner, the pinion 110 meshes with the larger gear 113 beneath it and which gear 113 is likewise carried by a short shaft 114 similar to shaft 112 but not shown. except for its end, see Fig. 2. The shaft 112'carries a sprocket wheel 115 and the shaft 114 carries a sprocket wheel 116. As best shown no Figs. 2, 3, 4, 5, and 11, at the opposlte end of the tracks 24 and 25 from the end supporting the shaft 108, there is provided two other short shafts 120 and 121. Mounted on the short shaft 120 is a sprocket gear 122 and mounted on the short shaft 121 is the sprocket gear 123. A sprocket chain 12:") passes over the sprocket gears 115 and 122 and a sprocket chain 126 passes over the sprocket gears 116 and 123. As w1ll be clear from Figs. 2, 3 and 8 the member 130 is attached to the axle 31-of the traversing mechanism and. is provided with a link 127,

chain 125 as at the point 128 Fig. 8. To

and this 'link is also attached to the sprocket the other end of the axle 31 there is a similarl' mechanism in all respects aduplicate of that shown in Fig. 8, attached thereto and which 1s given the same reference characters.

It will now be clear that as the sprocket chains 125 and 126 move toward the right, as seen in Figs.'2 and 8, the member 128 on each chain will cause the cutting mechanism to move from one end of the tracks 24 and 25 to the other, or until said members 128' reach the sprocket wheels 115 and 116, respectively. Vhen these members 128 reach said sprocket wheels they will revolve right around said sprocket wheels due to the factthat said sprocket wheels are on the short shafts 112 and 114 located under the shaft 108, and to the fact that there is no continuous shaft in line with the short shafts to obstruct the passage of said members 128. Further, said members .128 are disposed on the inner sides of their respective sprocket chains 125 and 126. It results. from this that the upper bight of the sprocket chains 125 and 126 will carry the cross cutting traversing carriage to the right, as just described, until the said sprocket wheels are reached, whereupon the members 128 will revolve around said sprocket wheels and said carriage or cutting mechanism will be then carried back toward the left as seen in Fig.

2. This movement toward the-left will continue until the members 128 reach the sprocket wheels 122 and 123, which are likewise mounted on short shafts 120 and-121 turning or moving toward the right as seen in Fig. 2, in order that there should be a length of the slitted sheet disposed beyond said cutter 79 and in order that when it begins its new cutting action the proper len th of the slitted sheet will be severed to form the desired boards 6. This is provided for by the following means: The gears are so proportioned that the movement of the cutting mechanism 4, including cutter 7 9,

Fig. 1. will move many times faster than will the sheet. For example, suppose the original sheet 1s twelve feet across and in order to fix the idea suppose the boards'6 that are severed by cutter 79 from said sheet 'are 8 feet long. the cutting mechanism 4 must move 12 feet across the sheet in one direction and 12 feet back, making in all 24 feet of travel while the sheet only moves a distance depending upon the angle of the slot 17 and in any case, less than 8 feet, thus making the ratio greater than 3 to 1 in the instance mentioned, Stated in other language, not only must the speed of the cutter 4 shown in Fig. 1 be much greater than the speed of the sheet, but there must be a dwell after the cutter 4 has crossed the sheet 1 in one direction and has returned'to its starting point, before a new cross cut is made. In order to get this dwell, the severed boards 6 are made to contact against a target, or circuit breaker 140 which has the effect of cutting OR the power from shaft 105 as will be disclosed below. That is, the boards 6 already severed are delivered to the above mentioned feedrollers7 which travel at a faster rate than the sheet 1 and which therefore move the previously severed boards out of the way of the oncoming unsevered boards so that the latter may strike the targetand make the circuit through the magnetic clutch, in order to start the cross cut ting means 4 into action.

Stated in other words, the circuit through the clutch 104 is closed both at the switch 140, and at the cut out switch 151. The circuit at the target or switch 140" is momentarily closed and immediately broken when the front edge of the oncoming sheet 1 strikes it, and the circuit at the cut out switch 151 is closed immediately afterwards.

That is, the parts are so timed that the severing mechanism 4 completes its cross cutting action and returns to its initial position near the said cut out switch 151, see

Fig. 1, just before the severed board leaves the target 140, and this return of said means 4 causes the bumper 150 to contact with the cut out switch and to break one of the circuits through the clutch 104 over the wires 152 and 153 just before the severed board 6 finally leaves the target or switch 140. Said board 6 while in contact with the target 140 holds the latter in a depressed condition against the tension of the spring 155, see Fig. 9, and therefore as said board leaves said target said spring 155 returns the latter to its upright position. The circuit over the ' wires 141 and 142 through the clutch 104 being already broken, this condition leaves the cutting mechanism 4 including the cutter 79 at its initial position with no power at all on the shaft 105, because all current to the clutch 104 is cut off. Therefore, the above mentioned dwell of the means 4 takes place, and the severing cross c'utting mechanism remains stationary until the oncoming slitted sheet 1 reaches said target 140, depresses the same and thus again makes the circuit over the wires 141 and 142 through the clutch 104 and starts the cross cutting mechanism 4 on its journey to sever a new set of boards 6. This last named circuit is made only momentarily, butlong enough for the means 4 and bumper 150 to recede from the switch 151 and close the circuitthrough the clutch 104 over the wires 152 and 153. This circuit over the wires 152 and 153 now remains closed until the mechanism 4 has completely traversed the sheet 1 and returned to its initial position when the switch 151 is again opened and the cycle of operations repeated.

The motor 55 on the means 4, see Fig. 2, is fed by the flexible cable 156.

It should be pointed out that as the cutter 79 begins its forward motion across the sheet .1, the upwardly curved end 88 of the shoe member 77 rides up over the said sheet and facilitates the cutting action by aiding in holding the sheet in place. On the other hand, when 'said cutter 79 begins its return travel after completing its cross cutting action, the downwardly curved portion 87 -of said shoe member 77 naturally points under said sheet 1 and therefore lifts the latter upwardly to a degree sufiicient to enable the whole mechanism to return to its starting point underneath said sheet 1.

The operation of the foregoing mecha- 'nism will be clear from what has been said but may be briefly summarized as follows The oncoming sheet 1 is slitted in a plurality of places 3 by the slitting members 2 not claimed herein and the traversing cutting mechanism indicated generally by the numeral 4 and which is disclosed in detail in Figs. 4, 5, 6 and 7, is started from a point near the cut-out switch- 151 which is at. this time open. --The starting of this said traversing mechanism 4 is effectedby the forward edge of the sheet 1 striking the target or starting switch 140 which momentarily closes the circuit over the wires 141 and 142 through the magnetic clutch 104, and thus permits power from the motor 100 to turn the power shaft 105 which through the gearing described turns the shaft 108 and the sprocket wheels and 116. These said wheels 115 and 116 turn the sprocket chains and 126 which pass over the sprocket wheels. 122 and 123 and these chains are connected by the members 127 and 128 to the traversing carriage carrying the mechanism 4 and reciprocates said traversing car riage across the path of travel of the sheet 1 from its starting point back to its initial position due to the fact that the sprocket wheels above mentioned are mounted on short shafts 112 and 114, disposed underneath the shaft 108 as well as on the short shafts 120 and 121. These short shafts permit the connections 127 and 128 to pass entirely around the sprocket wheels with the sprocket chains, and thus to continuously reciprocate the traversing carriage with the severing mechanism 4 and cutter 79 as long as power is applied to the power shaft 105 through the clutch 104. On the other hand, said clutch 104 is not only controlled by the targetor switch 140 through current passp -151, which latter is operated by the butter 150 carried by said traversing means or carriage 4. It thus happens that after the cutter 79 on the severing mechanism 4 has returned to its initial position, the buffer 150 opens the switch 151 and cuts off c'urrent from the clutch 104. The current through the target or switch 140 has been previously cut ofi due to the fact that the switch 140 is or may be of the well known type which momentarily makes circuit and then immediately opens the same. That is to say, as soon as the traveling forward edge of the sheet 1 strikes said switch 140, circuit is momentarily made and the magnetic clutch 104 isenergized, whereupon the circuit is then immediately broken. The target 140 accompanying this switch is held depressed by the sheet as long as it is passing thereover, but as soon assaid switch is released from said sheet 1, the spring 155 thereof restores the target to its upright position and it is ready for another depression or action. As this switch forms no part of this invention and as switches of this character are well known, it is not deemed necessary to describe it further herein. Suffice it to say that when the traversing carriage 4 has severed the plurality of boards 6 from the traveling sheet and has returned to its initial position, it is necessary that it dwell for a predetermined time near the switch 151 before starting another cut, in

order that the relatively slow moving sheet 1 will have time to pass the said cutter 4 for a sutlicient distance to insure that the cutter 4 will sever the right lengths of material. In order to get this dwell, the

said severing mechanism 4 through its buffer 150', opens the circuit at the switch 151 upon its return to its starting point, and the cir-' cuit through the switch 140 being already open, said severing means 4 of necessity dwells or ceases its motion until. a circuit,

is again made through said clutch .104. In other words, the dwell of the cutting mechanism 4, continues until the oncoming edge of the sheet 1 again strikes the target 140 and momentarily closes the circuit through the clutch 104 and thus starts the said severing mechanism 4 again on its traversing cutting action. Although the circuit is made through the switch 140,. and almost immediately broken, yet said circuitis closed for a time sufiicient for the cutting means 4 to be startedon its motion across the sheet and therefore the switch 15-1 is automatiof the line of travel of sald sheet and at an .cally closed and remains closed until the angle thereto proportional to the relative and returned back to its normal position, whereupon the cycle of operations 1s reeated.

The breaking of the circuit through the center of the slot 17, and in order to effect this there is provided the screw 165, Figs.

'2 and 4, pivotally mounted at one end on the bracket 166 rigid with the plate 48 and rotatably mounted at its other end in the boss 167 rigid with the carriage member 42. A hand operated nut 168 serves to adjust thewhole plate 48 including the cutter 79 around the pivot point46 as a center and to thus enable the operator to keep the line of travel of said cutter in the center of the slot 17. In order to get the severed board 6 o'ut of the way of the oncoming-boards to be severed the rollers 7 as above stated are driven at a" faster speed by means not shown than is thespeed of the sheet 1 and said severed boards are delivered to the sprocket chains 8 as illustrated in Fig. 1 which chains pull them away from the path of travel of the oncoming boards. It is found in practice that a cutting disk such as 79 provided with a knife edge and contlnually sharpened by means not shown is pecul arly adapted for cutting bagasse sheets, and especially when it is revolved at a relatively low speed, but this invention is not limited to such cutting means as other forms of cutters may be substituted therefor.

It is. obvious that those skilled in the artmay vary the arrangement of parts as wellasthe material operated upon and also the individual elements of the mechanism, without departing from the spirit of the mvent on and therefore it is not desired to be limited to the foregoing disclosure except as may be required by the claims.

What is claimedv is: I

1. In an apparatus for cutting a traveling sheet of material the combination of means for propelling'a cutter transversely of the l1ne of travel of said sheet and at an angle thereto proportional to the relative speeds of said cutter and sheet; automatic means to speeds of said cutter and sheet; means for out.

at said starting point for a changing said angle when said speeds change; automatic means to cause said cutter to return to its starting point after its severing operatlon is completed; and automatic means to cause said cutter after returning to dwell at said starting point for a predetermined time before starting a new 3. In an apparatus for cutting a traveling sheet of material the combination of means for propelling a cutter transversely of the line of travel of said sheet and at an angle thereto proportional to the relative speeds of said cutter and sheet; pivoted means for changing said angle when said speeds change; automatic means to cause said cutter to return to its starting point after its severing operation is completed; and automatic means comprising a cut out switch to cause said cutter after returning to dwell predetermined time before starting a new cut.

4. In an apparatus for cutting a slitted traveling sheet of material into predetermined lengths the combination of a cutting means; a motor and'connections for moving said cutting means across the path of travel ofasaid'sheet and back to its starting point; means provided with a slot in which a portion of said cuttin means travels; and a circuit making and breaking switch adapted to be operated by said traveling sheet adapted to control the movements of said cutting means.

5. In an apparatus for cutting a slitted traveling sheet of material into predetermined lengths the combination of a cutting means; a motor and connections for moving said cutting means across the path of travel of said sheet and back to its start-" ing point; means provided with a slot in which a portion of said cutting) means travels; a circuit making and reaking switch adapted to be operated by said travel- 'ing sheet adapted to control the movements of said cutting means; and a cutout switch adapted to be operated by said cutting means for also controlling the movements of said cutting means.

6.,In an apparatus for cutting a slitted traveling sheet of material into predetermined lengths, the combination of a cutting means; an electric motor and connections for reciprocating said cutting means across the path of travel of said sheet; means provided with a slot in which a portion of said cutting means travels; means for adjusting said slot at an angle to the 'line of travel of said sheet proportional to the relative speeds of said sheet and cutting means; and circuit making and circuit breaking switches controlling said motor adapted to cause a dwell of said cutting means for a predetermined interval after each complete reciprocation th reof.

7. In an apparatus for cutting a slitted traveling sheet of material into predetermined lengths, the combination ofa rotatin cutting means; a carriage on which sai cutting means is carried; a track over which said carriage moves; an electric motor and connections for reciprocating said cutting means and carriage over said track and across the path of travel of said sheet; means provided with a slot in which a portion of said cutting means travels; means for adjusting said slot at an angle to the line of travel of said sheet proportional to the relative speeds of said sheet and cutting means; and circuit making and circuit breaking switches controlling said motor adapted to cause a dwell of said cutting means for a predetermined interval after each complete reciprocation thereof.

'8. In an apparatus for cutting a slitted traveling sheet of material into predetermined lengths, the combination of a cutting means; an electric motor and connections comprising a magnetic clutch for recipro eating said cutting means across the path of travel of said sheet; adjustable pivoted meansrovided with a slot in which a portion 0 said cutting means travels; means for adjusting said slot at an angle to the ,line of travel of said sheet proportional to the relative speeds of said sheet and cutting means; an electric motor for rotating said cutting means and circuit making and circuit breaking switches controlling both said motors and adapted to cause a dwell of said cutting means for a predetermined interval after each vcomplete reciprocation thereof.

9. In an apparatus for cutting a traveling sheet of material into a predetermined length the combination of a traversing means provided with a shoe curved upwardly at one end and curved downwardly at its other end; a cutter carried by said traversing means: an electric motor and connections comprising an electrically controlled clutch for moving said traversing means and cutter across the path of travel of said sheet and back to its starting point; a pivoted adjustable means provided with a slot in which a portion of said cutter travels; and circuit making and breaking switches adapted to be controlled respectively by said traveling sheet and by said traversing means to effect the starting and stopping of said last named means and said cutter and to cause said traversing means to dwell for a predetermined interval of time before each cutting action.

10. In an apparatus for cutting a traveling sheet of material into a predetermined length the combination of a traversing means provided with a shoe curved upwardly at one end and curved downwardly at its other end; a cutter carried by said traversing means; an electric motor and connections comprising an electrically controlled clutch ,for moving said traversing means and cutter acrossthe path of travel of said sheet and back toiits starting point; an electric motor for operating said cutting means; a pivoted adjustable means provided with a slot in which a portion of said cutter travels; and circuit making and breaking switches adapted to be controlled respectively by said traveling sheet and 'by said traversing'means toei'tect the starting-and stopping of said last named means and said cutter and to cause saidtraversing means to dwell for a predetermined interval of time before each cutting action.

11. In an apparatus forcutting a traveling sheet of material into a predetermined.

length the combination of a; traversing means provided with a shoe curved upwardly atone end and curveddownwardly at its other end; a cutter carried by said traversing means; a track'on which said traversing means travels; an electric motor /and connections comprising an electrically controlled clutch for moving said traversing means on said track and cutter across the path oftravelof said sheet and back to its starting point; apivoted adjustable'means provided with a slot inwhich a portion of said cutter travels; means for. adjusting said slot to an angle to the'pathpf travel of said sheet proportional to the relative speeds of said sheet andjtraversing means; means to soadjust said, cutterj-asto cause the latter to move in a path approximating the center of said slot; and'circnitfmaking and breaking switches adapted td be controlled respectively wears-trawling sheet and by said traversing; nieansctoefi'ect the starting and stopping' ofgsaid last named means and said cutteran'd to jc'ausesaid traversing means to dwell for a; predeterminedinterval of time beforeieach cutting action.

12. In an apparatus for'cutting a traveling sheet into predetermined lengths the combination out a cutting means comprising 7 a carriage carryinga cutter; a pivoted mem-' her on which said cutter is supported ;means comprising a motor ,"forfreciprocating sa d carriage and cutter across the path of travel of said sheet and back to its starting point;

a pivoted means provided with a slotin which a portion of said cutter travels'an'd adapted to be placed an an angle. tothe path of travel of said sheet proportional to I the relative speeds of said carriage and sheet; a second electric. motor for rotatingsaid cutter; an electric: switeh' atlapted to' start the movement of saidfcarrjiage -con-; trolled by said travelingsheet; and an auto matic cut-out switch adapted to be operated by said carriage to stop ;thfe moftion offthe latter and said cutter.

7 .13. In an apparatus for cutting a travel ing sheet into predetermined lengths the combination of a cutting means comprislng a carriage carrying a cutter; a pivoted memher on which said cutter is supported; means comprising a motor and a magnetic clutch for reciprocating said carriage and cutter across the path of travel of said sheet and backto its starting point; a pivoted means provided with a slotin-which a portion of said cutter travels and adapted to be placed at an angle to the path of travel'of said sheet proportional to the relative speeds of vsaid carriage. and sheet; 'a-second electric motor for rotating said cutter; an electric switch adapted to start the movement of said carriage controlled by said traveling sheet; an

support for said cutter; means to move said 1 D.

cutter and support across the line of travel of said sheet and back to its starting point;-

means providing a slot 'alongwhich said cutter travels; means to adjust the angle said slot makes with the line of travel of said sheet; means to adjust the plane of said cutter with respect to the axis of said slot; and means to'cause' a dwell of said 'cutter automatic cut-out switch adapted. to be oper- I andsupportafter reaching said. starting PQlllli- H 15. In an apparatus for cutting a travel- 1 ing sheet -into a predetermined ength the combination of a cutter; means constituting;

a support for 5 said cutter; pivoted 'means for supporting said cutter-and first named I means automatic means tomove said cut.-

terfand. support across the line of travel ofsaid'sheet and back to its starting point; 7;; means providing a slot along which said cut terz-ftravels; means to adjust theangle said" yslot niakes with the line of travel of said I sheet; means to adjust the plane of said .cfutter'with respectto the axis of said slot.

;;i-andv automatic means, comprising a circuit j controlling switch to cause 1 a 'dwell of said cutter and supportafterreachmg 831d start--- mg. polnt.

,. 1 116, In an apparatus for 'cutting-a travel 'iiig sheet into; aipredetermined length the 20mbinati0n of a rotating cutter;- an elect1-ic motor';for rotating said cutter; means constituting a support for said-cutter; means -:compris1ng -asecond. motor and connections j to move sald' cutteri and support across;the-

line of'travel' of said sheet and back "tofits starting point; means providing a slot along" which said cutter travels; means to adjust. the angle said slot makes with the line of travel of said sheet; means to adjust the plane of'said cutter with respect to the axis of said slot; and means comprising a pair of switches controlled by said sheetand firstnamed means to cause a dwell of said cutter and support after reaching said sta'rting point. I a

I In testimony whereof L afiiX my signature.

TREADWAY B. MUNROE.

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