US1005620A - Knitting-machine. - Google Patents

Description

E. DUBIED. KNITTING MACHINE. rrLIoATIoN FILED mm1?, 1910.

1,005,620. Patented Oct. 10, 1911.

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E. DUBIED.

KNITTIN G MAGHINE. APPLIOATION FILED JAN.

Patented Oct. 10, -1911.

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E. DUBIED.

KNITTING MACHINE.

APPLIoATIoN FILED 1111.17, 1910.

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E. DUBIED. KNITTING` MACHINE. -APPLIOATION FILED JAN. 17, 1910.

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EDOUARD DUBIED, OF COUVET, SWITZERLAND, ASSIGNOR TO EDOUARD DUBIED & CIE., OF COUVE'I, SWITZERLAND.

KNITTING-MACHINE. i

Specification of Letters Patent.

Patented Oct. 10, 1911.

To all whom 'it may concern.-

Be it known that I, EDOUARD DUBIED, a citizen of the Republic of Switzerland, residing at. Couvet, in the Canton of Neufchtel, Republic of Switzerland, (whose postoiiice address is Couvet,) have invented certain new and useful Improvements in Knitting-Machines; and I do hereby declare the following to be a full, clear, and exact 'description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same, reference being had to the accompanying drawings, and to letters of reference marked thereon, which form a part of this specification.

Heretofore it has only been possible to produce zigzag patterns in cardigan fabric upon the single cam knitting machine because the needle bed has to be shifted after each row of meshes. As, however, single cam machines cannot be used for the production of plaited cardigan fabric, zigzag patterns could not be formed in plaited fabric. It is of course possible to produce plaited fabric on the known single cam knitting machines, but on the other hand it is not possible with machines of this class to shift the needle bed after each row of meshes, that is to say to produce what is called shogged or racked work, because two rows of meshes are produced in one operation of the carriage and the second row of meshes begins before the irst is finished and so it is impossible to shift the needle bed between the formation of the two rows. Hitherto it has not been possible to produce plaited cardigan fabric with shogged or racked work.

The present invention has for its object a knitting machine which enables plaited cardigan fabric with shogged or racked work to be produced. The knitting machine which forms the object of the invention permits the production of such patterns by the operation of two single needle cams arranged at an interval from each other, owing to the fact that when one of said cams leaves the row of needles the needle bed is shifted and when this has taken place the other needle cam enters the row of needles.

In the accompanying drawing which illustrates one form of my invention Figure 1 is a side elevation of the machine; Figs. 2; 3 and 4 are plan views showing the machine with the carriage in different positions; Figs. 5; 6 and 7 show details; Fig. 8 is an end view of the machine seen from the right in Fig. l, the supporting frame being omitted and certain parts being shown in section; Fig. 9 shows an elevation from below of the needle cams; Figs. 10 and 11 show the zigzag material produced by the machine; Figs. 12; 13 and 14 show the machine as mounted on a base with its driving mechanism, Fig. 12 being a side elevat-ion, Fig. 13 a plan view and Fig. 14 an end view of the same; Figs. 15 to 19 show details. Fig. 2O is a front view partially in section, Fig. 21 an end view, and Fig. 22 is a plan view illustrating means for adjusting the needle beds.

The driving movement of the carriages l and 2, or what amounts to the same thing, the movement of the needle cams 25 and 26, may be produced by hand or by power, such an alternative arrangement being shown in Figs. 12 to 14.

The machine comprises two cam carriages 1 and 2, Figs. 1 to 4, and each of these carriages includes two plates 3 and 4, and 5 and G respectively. These carriages are rigidly connected together by rods 27 and 28 and the space between the needle cams 25 and 26 is greater than the length of the rows of the needles 38 and 39. The needle cams 25 and 26 are arranged beneath the carriage plates 3; 4; 5 and 6, Figs. 8 and 9, and move the needles in the usual way, each carriage being providedwith one needle cam.

7 8; 9 and 10 represents bearings which are provided with driving bolts l1; 12; 13 and 14 arranged thereon, these bearings being mounted on the carriage plates 3; 4; 5 and 6, see Figs. 1; 2; 3; 4 and 8. These driving bolts, see Figs. 5 and 8, serve to move the thread guides 15 and 16.

29 represents springs which tend to hold the driving bolts 11; 12; 13; and 14 in their depressed position, in which the lower ends of the bolts project below the bearings 7 8; 9 and 10. The two driving bolts 11 and 14, see Figs. 5 and 8, have at'their lower ends vertical bearing faces 30 on the right and left hand sides; the driving bolt 12, however, has on the right hand side of its lower end an inclined engaging face 31 Fig. 5, and on the left a straight bearing face 32.

The driving bolt 13 has an inclined engaging face 33 on the left and a straight bearing face 34 on the right.

The thread guides 15 and 16 are movable and the stops 19; 20; 21 and 22 are fixed on the carriage guide rods 17 and 18, see Fig. 6. These thread guides 15 and 16 have at their upper partoutwardly directed inclined engaging faces 35 and straight bearing faces 36 which are directed inward. At their upward part the stops 19; 20; 21 and 22 have engaging faces 37 which are beveled on both sides.

40 represents a shaft mounted on the frame 55 of the machine having a crank 41 provided with a handle, loosely mounted thereon. This handle has teeth on the rear side of its boss adapted to engage with a toothed ring 42 fixed on the shaft 40. Then the crank handle 41 is pushed toward the frame of the machine obviously the machine may be operated by means of said handle. On the other side the shaft 40 is provided with a clutch 43 having a driving wheel 44 loosely mounted on the boss of said clutch. Obviously when these clutch members are engaged the shaft 40 may be driven by the wheel 44. For the purpose of making this engagement a bell crank lever 45 is provided, pivoted on the frame at 46, one arm of said bell crank lever having a handle 47 and the other arm having pin 48 which engages a groove in a sleeve 49 slidably mounted on the shaft 40. The sleeve 49 is connected to the clutch 43 in such a manner that when the lever 47 is turned the sleeve 49 is moved on the shaft 40, producing a disengagement of the clutch members and making a connection between the wheel 44 and the shaft 40 so that said shaft 40 may be driven either by power from the pulley 44 or by hand from the crank handle 41. The shaft 40 drives the shaft 52 by means of the gear wheels 50 and 51 mounted respectively on said shafts. The shaft 52 is mounted in a bearing in a bracket 53 secured to the frame and on one end of said shaft 52 is mounted a sprocket wheel 54 over which passes a sprocket chain 60. Cn the rail 56 fixed to the frame 55 is adj ustably mounted a bracket 57 which serves as a bearing for the shaft 58, on which is mounted a sprocket wheel 59 over which the sprocket chain 60 passes. The carriage 1 has rearwardly directed arm 61 which is pivotally connected at the point 62 to a link 63 which pivotally engages a coupling link 64 on the chain 60.

65 represents two pins spaced from each other by a distance equal to the length of a chain member and on each of these pins 65 is fixed one end of the sprocket chain 60. A projecting part 641 forms the turning pivot for a block 66, screw threaded at one end and into which the link 63 is screwed.

From the construction described it is obvious that when the shaft 40 rotates, its

movement is transferred to the sprocket chain 60, which causes a reciprocating movement of the carriages 1 and 2. Assuming the carriages 1 and 2 and the thread guides 15 and 16 to be on the'right hand side of the machine, as shown in Fig. 3, and that the front thread guide 15 supplies white thread and the rear thread guide 16 supplies black thread, then when the carriages 1 and 2 move from right to left the driver bolt 14, Fig. 5, strikes against the inner straight bearing face 36 of the thread guide 15, Fig. 6, with its straight bearing face 30 and carries this guide in front of it, thereby bringing the white thread into the operative row of needles. At first the rear thread guide 16 Ldoes not participate in this movement, because the outwardly directed inclined engaging face 33 of the driver bolt 13 slides over the thread guide 16, Fig. 6. As soon, however, as the driver bolt 12 of the carriagel encounters the bearing face 36 of the thread guide 16 with its straight bearing face 32, Fig. 6, the rear thread guide is also displaced by the carriage 1 and black thread placed in the operative row of needles. The needle cam 26, Fig. 9, of the carriage 2 is so arranged that in the movement from right to left the white thread of the front thread guide 15 is knitted by the rear row of needles 39 and the thread is merely caught by the front row of needles 38; a row of white meshes is therefore formed on the rear. The needle cam 25, Fig. 9, of the car-V riage 1 then knits the black thread of the rear thread guide 16 on to the front row of needles 38 while the rear row of needles 39 only catches the thread; accordingly at this time a row of black meshes is formed in front. W'hen the carriages 1 and 2 move from left to right Fig. 4, the front thread guide 15 with its white thread is again carried along by the carriage 1 causing the thread bearing face 30 of the driver bolt 11, Fio. 5, to strike against the bearing face 36 of the thread guide 15, Fig. 6, and white thread is then used in the knitting. The rear thread guide 16 with the black thread is carried along by the carriage 2, as the inclined engaging face 31 of the driver bolt 12 passes over the thread guide 16 and the straight bearing face 34 of the driver bolt 13 encounters t-he bearing face of the thread guide 16, Fig. 6. The needle cam 25, Fig. 9, of the carriage 1, see Fig. 4, is so arranged that in the movement from left to right the white thread of the front thread guide 15 is knitted on to the rear row of needles 39 and is only caught on the front row of needles 38, so that a row of white meshes is again formed on the rear. The needle cam 26, Fig. 6, of the carriage 2, knits the black thread of the rear thread guide 16 on to the front row of needles 38 while the rear row of needles 39 only catches the thread; accordingly a course of black meshes is again formed in front. The movement of the thread guides 15 and 16 is limited by the stops 19; 20; 21 and 22.

From what has been stated, it will be understood that the black thread is always knitted in front and the white thread always in the rear so that the material produced is a plaited material in which the black threads form the front and the white threads the back of the material, although of course any desired colors may be used.

In order to impart a zigzag form to the edges, as shown in Fig. 10, the needle beds must be shifted after each row of meshes has been formed. This is possible because the two needle cams are arranged at an interval apart which is greater than the length of the needle bed, as obviously the shifting can only take place in that position of the carriages in which neither of the needle cams is in engagement with the rows of needles. The means for shifting the needle beds are the same as employed for this purpose and described in my United States Patent #943,921, dated December 21, 1909. When the carriages are in the right hand end position as shown in Fig. 3, the needle bed should be shifted. When the carriages reach the position shown in Fig. 2, the lcarriage 2 has knitted off a row of meshes whereupon the needle bed should be again shifted. After the carriages have reached the left hand end position, as shown in Fig. 4f, the carriage 1 has again knitted a row of meshes whereupon the needle bed is again shifted. When the carriages reach the position shown in Fig. 2 another row of meshes has been knitted whereupon the needle bed is again shifted, this operation being continued indefinitely. The needle bed is shifted one needle to the left after a row of meshes has been knitted and one needle to the right after the next row has been knitted. Then a given number of the staggered rows of meshes has been knitted, the needle bed is operated once without shifting. By the operation described, plaited cardigan fabric with zigzag patterns staggered in single rows are produced.

The rods 27 and 28 connecting the carriages 1 and Q, may be omitted and then each carriage may be operated independently of the other, by hand for example. As already said, the carriages are to move one after the other in the same direction, in such a manner that the front carriage stops every time at the end of its path until the needle bed is shifted and the other carriage has reached it again.

The machine can also be used as an ordinary knitting machine for manufacturing ordinary knit goods. I/Vhen used for this purpose, the rods 27 and 28 are omitted and the carriages coupled together without an intermediate link, as shown in Figs. 15 to 17. To facilitate this connection, the carriages have perforated extensions 67 and 68, the latter extending over the former, as shown in Fig. 16, and when in this position, they maybe united by screws.

When ordinary goods are to be produced, the path of the carriages may be limited and the machine driven at a greater speed. In order to effect this limitation, the ends of the chain 60 are detached from the coupling member and a certain number of links taken away. The bearing 57 is then adjusted to a corresponding position and the ends of the chain are then again fastened on to the coupling member.

1. In a knitting machine the combination of movable needle beds each provided with a row of needles, needle cams separately movable over said needle beds, the space between said needle cams being greater than the length of the rows of needles, and means for shifting the needle beds, substantially as described.

2. In a knitting machine the combination of a supporting frame, movable needle beds provided with rows of needles, cam carriages, needle cams on said cam carriages, movable over said needle beds, the space between the needle cams being greater than the length of the rows of needles, means for actuating the cams and each cam knitting one after the otheron the same row of' needles and knitting the same thread always in the same row of needles, guide rods, thread guides movable on the guide rods, means on said needle cams for carrying said Afthread guides and means for shifting the needle beds, substantially as described.

3. In a knitting machine the combination ofmovable needle beds provided with rows of needles, cam carriages, provided with needle cams, movable over the needle beds, the space between the needle cams being greater than the length of the rows of needles, guide rods, connections between the needle cams, means for reciprocating said needle cams, thread guides movable on the guide rods, and means for moving the thread guides, substantially as described.

4l. In a knitting machine the combination of movable knitting beds, guide rods, cam carriages movable on the guide rods and provided with needle cams, connections between the carriages, the space between the needle cams being greater than the length of the rows of needles, and means for shifting the needle beds, substantially as described.

5. In a knitting machine the combination of movable needle beds, guide rods, two cam carriages, the space between the carriages being greater than the length of the rows of needles, means for reciprocating said carriages, needle cams mounted on said carriages, means for actuating the cams and each needle oem knitting one after the other 0n ln testimony whereof, I have signed my the same row of needles and knitting the name to this speeifeaton in the presence of same thread always in the seme row of two subscribing Witnesses.

needles, thlead guides movable on said rods, EDOUARD DUBIED. means whereby the thread guides are moved lltnesses:

by said earl'ages and means for shifting the T. FANNY,

needle beds, substantially as described. S. A. SENN.

Copies of this patent may be obtained for ve cents each, by addressing the Commissioner of Patents, Washington, D. C.

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