US1416310A - Folding and strip-attaching mechanism - Google Patents

Description

A. B. WALES.

FOLDING AND STRIP ATTACHING MECHANISM. APPLICATION maobmzo, 1 913. RENEWED SEPT. 13. 1921.

2 SHEETS-SHEET I.

Patented May 16, 19222 Wwvrssss Vl/U'A/ESSES A. B. WALES.

FOLDING AND STRIP ATTACHING MECHANISM.

APPLICATION FILED DEC.20, I913- RENEWEDSEPT.13.I92I.

1,416,810., Patented May 16, 1922.

v 2 SHEETSSHEET 2.

entree stares QDFFHQIEO ALFRED B. W, OF TIVIAN, MASSACHUSETTS, ASSIGNOR '10 LOZ IVIUTHER,

F NEWTON, MASSACHUSETTS.

Application filed December 20, 1913, Serial No. 807,841. Renewed September 13, 1921,. Serial No. 500,320e.

. 'videa mechanism to be attached to folding machines so that strips of'flexi'ble material of any desired length may be applied to the surface of other material, and means by which said flexible strips may be cut off from a continuous strip of material without interrupting the operation of the machine or the feeding of the flexible strips of material and the material to which it is to be attached.

My invention is shown as applied to a folding machine of the type shown in the application for Letters Patent of the United States filed by William F. Lautenschla or on April 26, 1913, Serial No. 763,828. y this combination of mechanisms the operator is able to fold the edge of a flexible material and at the same time apply a strip or strips of flexible material of an desired length to one of its surfaces at a sl ght distance from, but independent of the folded edge.

In the drawings illustrating my invention- Figure 1 represents a side elevation of a folding machine with my mechanism for applying a flexible strip of material attached thereto and with the cutting knife for cutting the strips of material in its normal inoperative position; I

Figure 2 is an enlarged front elevation of the knife for cutting off the strips of material to the desired length with a section of the folding machine to which it is attached.

The knife is shown in this view as moved tion shown in Figure 2 ready to cut the material, and the guiding mechanism for. guiding the strip of material thrown away from the feeding mechanism of the folding machine.

Specification of Letters Patent.

Figure 4 is an end elevation of a section of a folding machine to which my improved mechanism is attached and shows a portion of the feeding mechanism of the folding machine the guide for guiding the flexible strip of material movedinto position contiguous to the feeding mechanism, and the knife for a cutting the material moved to its normal inoperative position as shown in Figure 1;

Figure 5 is an enlarged view of the cutting knife detached from the folding machine so as to better illustrate its construction;

Figure 6 is a sectional edge elevation of v the/knife and a section of the folding machine to which it is attached, taken through line 66 Figure 5, and shows the position assumed by the cutting portion of the cutting knife and a portion of the oscillating bearing upon which the strip applying mechanism is mounted;

Figure 7 is a front elevation of the cutting knives and the leverfor oscillating them, shown in the position they assume immediately after the strip of material has been cut;

Figure 8 is an enlarged section taken through line 8-8 Figure 1Q Figure 9 is an end elevation, of the elongated tube 45 looking at it from the left hand end as viewed in Figure 3, showing the saw-toothed edges designed for the purpose of feeding the tape;

Figure 10 is a section of the elongated tube 45 on the line 2-2, Figure 9.

In the drawings illustrating my invention, 1 represents the body of a folding machine to which my improved mechanism is applied, and 2 is an oscillating member of the folding machine which is mounted upon the oscillating shaft 3. The cutting knife 4 is mounted upon a stud 5 secured in' the oscillating member 2. The cutting knife 4 con-.

sists of the blade 6 which is mounted upon said stud 5 so as to oscillate thereon, but to be immovable endwise thereof, 'and the cutting blade 7 which is provided with the slots '8 and 9.. The slot 8 1s mounted to oscillate and slide upon the stud 5 and the slot 9 to slide upon a screw 10 which is threaded into the cutting knife 6. This method of mounting the knife 7 permits it to have an oscillating as well as an endwise reciprocating movement so that the cuttin edge 11 of the knife 7 will pass down by t e cutting edge terial between it and the cutting edge 12 of 12 of the knife 6 and cut any flexible material that may be within the space 13 when the knife 7 is operated. a

The knife 7 is provided with a square projecting lug 15 so positioned that when it is moved upwardly to its upper normal position as shown in Figure 5, this lug will enter the slot 16 formed in the lower edge of the operating lever 14. The operating lever 14 is mounted to have-rotative movement only uponthe stud 5 and is provided with a hole 17 designed to receive the end of the rod 18. The rod 18 is in turn pivoted to the arm of a bell-crank-lever 19 which is mounted upon the stud 20. The bell-crank-lever 19 is provided with the arm 21 for rotating it upon the stud 20. A rod 22 is pivoted to the arm 21 and extends downwardly and is pivoted to the rod 23. The rod 23 is secured. to one of the arms 24 of a vbell-crank-Iever 25. The bell-crank-lever 25 is mounted on a shaft 26 which is rotatively mounted in bearings 27 which may be attached underneath the top 28 of a bench or other support. The bellcrank-lever 25-has the rod 29 secured to its arm 30. The rod 29 extends downwardly and has adjustably mounted upon it a flat member 31 against which the knee or leg of the operator may be pressed for the purpose of oscillating the bell-crank-lever 25 to throw the cutting knife 4 into operative position.

While I prefer to use the leg or knee operating device shown for throwing the cutting knife into operation, the rod 22 may be extended so that a treadle can be attached and used to throw the cutting knife into operative position with exactly the same results as if the leg or knee operating device was used.

As viewedin Figure 1, pressure of the knee or leg of the operator upon the part 31 will move it to the right and move the rod 22 upwardly to swing the arm 19 of the bellcrank-lever to the right, thereby oscillating the operating lever 14 and the knife 4 to the right as shown in Figure 2 until the cutting edges of the knife 4 will embrace the flexible strip in position to cut it off.

The means for operating the cutting-blade 7 consists of the vertically reciprocating lever 34 which is a part of the folding machineand which reciprocates up and down, and upon which there is mounted a plate 35 secured to it by means of the screw 36.- This plate 35 has a notch 37 which will engage with the inturned portion 38'as is best seen in Figure 6, which notch serves to move the cutting-knife 7 longitudinally downward so that its cutting edge 11 will cut off the mathe knife 6 when the knife 4 is oscillated to the position shown in Figure 2.

lVhen the cutting-blade 7 is moved downwardly a suflicient distance to cut the mateaeiaeie rial, the square lug 15 is disengagedfrom the notch 16. When the lug 15 is disengaged from the slot 16 and the reciprocating link 34 and plate 35 starts to move upwardly to The tension of the spring 39 accomplishes this movement for the reason that its pull is sidewise, or in such a way as to ro tate or oscillate the lower end of the knives 6 and 7,

as viewed in Figure 2. It will be seen that the lower end of the extensible spring is attachd" s'ubstantially in the middle of the cutting-blade 7, or half way between its edges, and the upper end of the extensible spring is attached at one side, or the right hand side of the head of the pivot screw 40 which serves to hold the knives 6 and 7 and the operating lever 14 in place. This causes a sidewise draw on the knives 6 and 7 and serves to automatically, rotate or oscillate them upon the pivot 5 after the strip has been cut. The spring 39 is attached at its lower end to a pin 41 and at its upper end to the pin 42.

This rotative movement of the knives 6 and 7 takes place after the flexible strip of material has been sheared and immediately after the block 35 with the notch 37 has started to move upwardly to relieve the tension upon the inturned edge 38, at which time the lug 15 is disengaged from the notch 16 so that the knives 6 and 7 are free to rotate upon the stud 5. The purpose of this backward movement of the knives 6 and 7 is to prevent their cutting more than once should the contact piece 31 and its connecting mechanism be held in position to throw the knife into cutting position as shown in Figure 2. In that case the knife will cut the tape once; the lug 15 will disengage the slot 16 and immediately the cutting blades 6 and 7 will move to their normal inoperative position as shown in Figure 1, notwithstanding the lever 14 is held in the position shown in Figure 2. This movement moves the inturned end 38 out of the path of the notch 37 so that the reciprocating movement of the plate 35 will not affect the cutting knives. The lever 14 is moved to its normal position as shown in Figure 1 by the spring 43 attached to the bearing 46 of the strip-guiding member 44, and best seen in Figures 3 and4. The strip-guiding member 44 is provided at its lower end with the elongated tube 45 which may be provided with saw-toothed edges 45*, or any suitable frictional device, at its left hand end to prevent the strip from being pulled out. The member 44 is removably and adj ustably secured in the oscillating bearin '46. This oscillating bearing 46 is pivoted upon. the

i the portion 31 and its connections.

ber 44 to the left, as viewed in Figure 3, and.

hold it in position to guide the strip of material as shown in Figure 4. The member 44 is prevented from oscillating further to the left than is seen in Figure 4 by means of a stop 54, best seen in Figure 2, and which is attached to the portion 46 and extends outwardly so as to contact with. the portion which is formed upon the operating lever 1 14. The lever 14' and'knives 6 and 7 are held in the position shown in Figure 1 by the tension of the spring 43 exerted upon the bearing 46, the extending lug 54 and the portion 55. At the same time the knives 6 and 7 are held in position with their right hand edges against the stop 56.

Assuming the knives 6 and 7 are swung backwardly and to the position with relation to the lever 14 as shown in Figure 7, the lever 14 being held in the position shown by The moment the pressure is released from the part 31the lever. 14 will swing to the left, as shown in Figure 1, 'by means of the tension of the spring 43exerted upon the bearing 46, its extending portion 54 and the part 55. When the lever 14 has swung to a point where it is in alignment with the knives 6 and 7, as shown in Figure 1, the tension of the spring ,39 will draw the knife 7 upwardly until the square lug 15 enters the notch 16 and arrests further movement of the operating lever 14 as well as further movement of the oscillating bearing. 46 and the rod 44 and its elongated guide 45, thus holding the guide in feeding position as shown in Figure 4.

Tn carrying out my inventionI provide a cement receptacle having projecting downwardly therein, means for guiding the strips of flexible material in and out of the receptacle6i), comprising a downwardly extending strip-guide 61. The strip 62 enters the side of the receptacle at 63, passing downwardly around the projection 61 and upwardly past a wiper 64,which removes the surplus cement. The strip is guided by the edges 61*. The strip then passes upwardly out of an orifice 65 and thence to a guide 66 and forwardly over the guide 67, thence downwardly to the elongated guide 45. It will be noted that the saw-toothed edges 45 are so formed and positioned that they slant forwardly and upwardly. in the direction of feed of the strip so that said strip can be pulled through the elongated tube 45 in one direction, but will be prevent ed from being pulled through in the other direction by the teeth 45, which owing to their position underneath, would catch in the strip if it was attempted to pass it through in the direction from left to right. The end of the strip 62 extends under the presserfoot 70 which is one of the operative parts of the folding machine. This presser-foot 70 is so arranged that during the forward movement of the feed-foot 71 the pressei foot will be raised from the nniterial, as shown in Figure 3, and during the backward and non-operative movement of the feed foot 71 the presser-foot 70 pressesdown wardly upon the flexible strip, pressing it against the, material to which it is to be applied so as to stick it to said material. The strip 62, in the case of a folding machine, passes under the fold-presser foot 72 which presses said flexible strip to the material to which it is applied, thus completing the op eration of cementing it.

In practice, the cement receptacle is tilied to the level of the dotted lines and the strip 62 passes down the guide 61 between the edges 61 with suflicient tension applied to the strip 62 to firmly hold it against the surface of the guide 61. By this means cement' is allowed to reach one side of the strip 62 only so that when it is attached to the material to which it is to be applied there will be no cement on the exposed surface of the strip.

M invention is not to be confined to the exact form of the parts shown, nor to their location with reference to each other, as their form and arrangement may be varied without departing from thespirit of my invention.

What I claim is- 1. The combination in a folding machine, of means for feeding and folding the edge of a flexible material, with means for a ttaching a strip of flexible material of any desired length to said first-mentioned material, contiguous to, but independent of the folded edge.

2. The combination in a folding machine,

of means for feeding and folding the edge of a flexible material, with means for feeding and cutting off to any desired length and attaching a strip of material to said firstmentioned material, contiguous to, but independent of the folded edge thereof.

3. The combination in a folding machine, of means for feeding and folding the edge of a flexible material with a device for feed .ing and attaching a strip of material to said first-mentioned material, contiguous to, hut I independent of the folded edge, and means under the control of the operator for cutting off said strip of material to any desired length. 1

4. In a folding-machine, the combination der control of the operator for rendering the cutting ofl' means operative, and for automatically returning the cutting means to' its normal inoperative position after the strip of material has been cut.

5. In a folding machine, means for feeding and folding the edge of a flexible material, combined with means for feeding and attaching a strip of material to said firstmentioned material, contiguous to, but independent of the folded edge, means for guidin the strip of material, meansTfor cutting of? the strip of material, normally 'inoperative, meansunder the control of the operator for rendering the means for cutting ofl the material operative, and means \for automatically returning the cutting means to its normal inoperative position after the strip of material has been cut without interrupting the operation of the feeding and folding mechanism.

6. A machine of the class described having, in combination, mechanism for folding the margin of a piece of pliable, material, and means for applying to the body of said material inside of and adjacent to but without the plies of said folded margin a piece of tape.

'Z'. Ainachine of the class described having, in combination, mechanism for progressively foldin the margin of a piece of pliable material, and means for similarly applying to the body of said material inside of and adjacent to but without the plies of said folded margin a piece of tape.

8. A machine of the class describedhaving, in combination, a support for a piece of inmate pliable material, mechanism for feeding said material over said support and for folding and pressing the margin, and means for guiding a piece of tape into position inside of and adjacent to but without the plies of said folded margin whereby the tape is pressed simultaneously with the pressing of the margin.

-9. A machine of the class described having, in combination, a support for a piece of pliable material, mechanism for feeding said material over said support and for folding and pressing the margin, said mechanism including a presser the acting face of which, when the presser is in operative position, overhangs the fold, and means for guiding a piece of tape alongside-the marginto be folded but in such manner as to lie without the plies of the fold into position beneath the overhanging portion of the presser. v

10. A machine of the class described having, in combination, a support for a buttonfly having a folded margin, means for feeding said button flyover said support, means for laying upon said button fly alongside but without the plies of said folded margin a piece of tape during the feeding operation, and means for pressing said tape-against said button fly.

11. A machine of the class described having, in combination, a support for a piece of material having a folded margin, means for feeding said piece together with a piece of tape over said support, means for guiding said tape alongside but without the plies of said folded margin, and means for pressing said tape against said material.

In testimony whereof, I have hereunto set my hand, in the presence of two subscribing witnesses, this 18 day. of December,

ALFRED B. WALEF Witnesses:

L. MUTHER, R. P. Emor'r.

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