US1486780A - Yarn-guide reciprocating mechanism - Google Patents

Description

March 11, 1924; mama) I M. MAXIK YARN GUIDE RECIPROCATING MECHANISM Filed Jan. 17, 1925 mama Mar. 11, 1924.

m MAXIK, OF NEW YORK. Ii. Y.

YARN-GUIDE nncrraocnrme m a t Application filed January 17, 1923. Serial No. 613,197.

i To all whom it may concern:

Be it known that 1, Max MAxIK, a citizen of 'the United States, and a resident of the city of New York, borou h of Queens, in the county of Queens and tate of New York, have invented a new and Improved Yarn- Guide Reciprocating Mechanism, of which the following is a full, clear, and exact description.

ls invention relates to a yarn guide reciprocating mechanism for knitting machines and particularly to means used on a Tisch or similar knitting machine whereby substantially any width of cloth may be knit.

The object of the invention is to provide an improved construction for knitting machines of the Tisch tvpe whereby the thread 1 tube may be moved back and forth substan-. .tially any desired distance.

A further ob'ect of the invention is to provide an attac ment which may be added to the ordinary knitting machine of the Tischor similar type and set easily to knit extra wide widths of cloth.

A still further object, more specifically, is to provide a pawl and rack device with associated parts for multiplying the movement of the thread tube operating mechanism without. increasing the friction of the various parts.

In the accompanying drawing- Figure 1 is a fragmentary view of a Tisch knitting machine with an attachment embodying the invention applied thereto.

Figure 2 is an enlarged top plan view of one end of the structure shown in Figure 1.

Figure 3 is a sectional view throu h F igure 1 approximately on line 3-3, t e same being on an enlarged scale.

Figure 4 is a sectional view through Figure 3 approximately on line 44.

Figure 5 is an enlarged fragmentary sectional view through Figure 1 approximately on line 5-5.

Figure 6 is a top plan view of the structure shown in Figure 5.

Figure 7 is an elevation of a slightly modified construction of bracket. 7

Referring to the accompanying, drawing by numerals, 1 indicates the frame of a knit ting machine of the Tis'ch type as for instance, of the type shown in iPatent No. 457,265. In this form of knitting machine, a tube bar 2 is provided which is reciprocated by suitable pins 3 and 4 and as bar 2 reciprocates motion is transmitted to the various tube plates 5. Heretofore, a toggle or lever arran .ment was provided for accomplishing thls result whereas in the present invention an improved arrangement is provided which eliminates to a large extent the friction found in the old device and at the same time presents a structure wherein the two plates 5 may be moved a short distance or a long distance so as to knit a nar-.

row strip of cloth or a wide strip of cloth within the limits of the machine.

As indicated in Figure 5, the plate 5 is provided with a notch 6 for accommodating the bar 2. A clamping plate 7 is secured to the plate 5 by screws or other suitable means, said clamping plate having an apertured turned over end 8 which receives a tyin member 9 for tying the late 7 to the flexible operating member 10 which may be a strong cord or other material as preferred. The plate 5 is provided with a thread tube 11 of any usual or preferred structure which operates in the usual manner for guiding the operation of the knitting machine.

The cord 10 is secured to the-respective pulleys 12 and 13 and arranged to be wound thereon as the machine operates. Accord-- moved for instance plate 5 and the plate 5'.

would be caused to travel from one pulley to the other back and forth. This traveling of plate 5' is caused by the rotation of the respective pulleys 12 and 13 which are of identical construction so that the description of pulle 12 and associated parts will apthe thread as it is properly placed during ply equa y to pulley 13 and associated parts.

As indicated in Figures 3 and 4, the pulley 12 is mounted on a shaft 14 which shaft is cally to accommodate different size spur gears 19 and also, if desired, difierent size pulle s 12. -The bracket 15 is clamped rigid y to the tube bar 2 by any suitablev ulley 12 and spur gear 19 are mounted.

he spur gear 19 is adapted to be rigidl secured to the pulley 12 by any suitab e means, as for instance, by the plate 21 which is secured in lace by screws as indicated in Figure 3. e spur gear 19 is continually in mesh with the teeth 22 of the rack bar 23 whereby when the bracket 15 is moved by the tube bar 2 the spur gear 19 will be rotated as the rack bar 23 is held stationary by suitable clamping means connected with the frame 1.

In order to prevent the spur gear 19 from leaving the rack bar 23, a roller 24 is provided which rests on top of the rack bar and is rigidly clam d to the bracket 15 by a bolt 25. It wil be noted from Figure 3 that the bolt 25 is provided with a shoulder and a nut, one of which may be clamped rigidly in place and thereby permit the roller 24 to freely rotate. The pulley 12, spur gear 19 and associated parts are so roportioned that the extreme movement 0 the tube bar 2 caused by pin 3 for instance, will cause the plate 5' to move entirely across the knitting machine whereas a movement of half its design distance will cause the plate to move half way across.

In some machines, instead of having one tube bar 2 as shown in Figure 1, two bars are provided arranged at an angle 'to each other and when the invention is to be applied to this kind of a machine the bracket 15' (Figure 7) is to be used whereby the two bars similar to bar 2, may extend through the apertures 26 and 27. .Aside from this change, the bracket 15' is identical with the bracket 15. In the drawing, the device has been shown as being applied vertically but. under some circumstances it may be arran d to operate in a horizontal plane wit out changing the construction or the function of the various parts.

In operation, the plates 5 and 5' reciprocate or move back and forth a certain distance when two strips of cloth are being knit. If only one strip of cloth is being knit, one of these plates and associated parts are removed. As the machine continues to operate and shift the bar 2 back and forth, t e brackets 15 will be shifted back and forth and, consequently, the spur gear or pinion 19 will be actuated, which in turn will actuate the pulley wheels 12 and 13 for shifting the cord 10 and the plate 5. By the provision of a small spur gear and a arge pulley wheel and associated parts, a multiplying mechanism is produced whereby a short movement of bar 2 will cause a large movement of the cord 10 and the described will .function' and will pull the late 5 in either direction, according to the 'rection of movement of the bar 2. This back and forth movement of the plates 5 continues as long as the machine is in operation.

What I claim is 1. An attachment for a knitting machine provided with a tube bar and two carrying plates, of a flexible member connected to said plates, and'means for moving said flexible member so as to shift said plates to an desired extent, said means including a m tipiying mechanism operated through said tu bar and provided with a pair of winding members for said flexible member.

2. In a knittin machine provided with a tube bar and a tu carrying plate mounted thereon, a flexible member for sliding'said plate along said tube bar, a pair of pulleys for moving said flexible member, sa1d pulleys being arranged on o posite sides'of the machine whereby said plate may be moved from one side of the machine to the other to knit a strip of cloth the full width of the knitting machine, and multiplying mechanism operated by said tube bar for actuating sai pulleys.

3. An attachment for a knitting machine formed with a tube bar and a tube plate slidingly mounted thereon comprising a ligament connected with said plate, a pair of pulleys connected to the end of said ligament, said pulleys being rotatably mounted so as to wind the thread and thereby move the tube plate longitudinally of said tube bar a pair of brackets rigidly secured to sai tube bar and moved thereby, said brackets carrying said pulleys, and multipl ing mechanism connected with the frame 0 the knitting machine and with the pulleys whereby the rotation of the pulleys is multiplied when the brackets are moved by said tube bar.

4. In an attachment of the character described, a cord for moving a tube plate, a pair of pulleys connected to the end of said cord, a bracket for each pulley, a stationary rack extending across each bracket, a spur gear rigidly secured to each of said pulleys and meshing with said brackets, said spur gears being carried by said brackets whereby as the bracket are moved the spur gears will be moved for rotatin said pulleys and thereby moving said cor and tube plate.

5. In an attachment for knitting machines of the character described, a ligament adapted to be connected with a tube plate, a pulley connected to each end of said ligament, said pulleys being arranged on opposite sides of the knitting machine, a racket rigidly secured to the tube bar of the knit- 5 ing with said spur torso; I a

ting machine and as supports for said pulleys, a sgur gear carried by each pulley and a me secured to said knitting machine and held stationary, said rack meshrs wherebywhen said tube bar moves said brackets the pulleys will be rotated and by reason of the difference in size of the respective parts the movement of the tube bar will be multipliedI 6. In an attachment for knitting machines of the character described, a flexible member adapted to be connected with thetube plate of the knitting machine, a pair of brackets rigidly secured to the tube bar of said knit-, w ting machine, of shaft carried by each of said brackets, a pulley rotatably mounted on ranged with the teeth in mesh with the re spective spur gears, and means for preventing the rack and spur gears from separating as the brackets are moved whereby the s ur gears will be caused to rotate and will wlnd and unwind said flexible member as the brackets move backand forth.

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