US1737598A

US1737598A - Knitting machine

Info

Publication number: US1737598A
Application number: US196894A
Authority: US
Inventors: Lombardi Vincent
Original assignee: Individual
Current assignee: Individual
Priority date: 1927-06-06
Filing date: 1927-06-06
Publication date: 1929-12-03
Anticipated expiration: 1946-12-03

Description

Dec. 3, 1929. v LOMBARD] 1,737,598

KNITTING MACHINE Filed June 6, 1927 a Sheets-Sheet 1 INVENTOR 1 1/1607! l0mdrdz A ORNEY Dec. 3, 1929. v. LOMBARDI KNITTING MACHINE Filed June 6, 1927 8 Sheets-Sheet INVENTOR I Vznre'nl Lombard;

L TTORNEY Dec. 3, 1929. v, LOMBARD] 1,737,598

KNITTING MACHINE Filed June 6, 1927 8 Sheets-Sheet 5 lllllm i A fiORNEY Dec. 3, 1929. v. LOMBARDI KNITTING MACHINE Filed June 6, 1927 8 Sheets-Sheet INVENTOR Vznce/gf L 0m&drdz

E Q'FI'ORNEY Dec. 3, 1929. v. LOMBARDI KNITTING MACHINE Filed June 6, 1927 8 Sheets-Sheet Dec. 3, 1929. v. LOMBARDI KNITTING MACHINE Filed June 6, 192'? 8 Sheets-Sheet INVENTOR l (Hrenf Z onvaraz JAEIORNEY Dec. 3, 1929. v, LQMBARD] 1,737,598

KNITTING MACHINE Filed June 6, 1927 8Sheets-Sheet '7 Luau- INVENTOR Dec. 3, 1929. v. LOMBARDI KNITTING MACHINE Filed June 1927 8 Sheets-Sheet OGGOOQOOOOOOO OOOOOO OOO . INVENTOR V1 "an? 2 1 0/17 ardz I TTORNEY Patent Dec. 3, 1929 rains VINCENT LOMBARDI, OF BROOKLYN, NEW YORK KNITTING MACHINE Application filed June 6, 1927. Serial No. 196,894.

This invention relates to knitting machines and includes certain correlated inventions and discoveries appertaining thereto.

An object of the invention is to provide a knitting machine whereby a large number of varied pattern effects may be readily and economically incorporated into a knitted fabric.

In its more specific aspects, the invention has for an object the provision in a knitting machine of improved pattern control mechanisms arranged to be set periodically in accordance with the configurations presented thereto by a pattern-determining medium, 5 and in response to said setting to impart pattern-controlling actuations to a series of needles.

An additional object is to provide a knitting machine which is simple in construction, economical of manufacture and assembly, readily adjustable, capable of a Wide variety of uses and adapted for ready and efficient operation.

Another object is to provide an improved type of pattern wheel for a knitting machine by means of which the knitting operations of the needles may be more readily controlled.

I Another object is to provide in a knitting machine an improved construction whereby the plungers usually employed in conjunction with a paper pattern may be prevented from injuring the pattern.

Another object is to provide a more rugged pattern mechanism for a knitting machine.

The invention accordingly comprises the features of construction. combinations of elcnicnts, and arrangement of parts, which will be exemplified in the constructions hereina't'ter set forth and scope of the application of which will be indicated by the appended claims.

For a fuller understanding of the nature and objects of the invention, reference is made to the following detailed description taken in connection with the accompanying drawings. in which Fig. 1 is a plan view of a circular knitting machine embodying this invention;

Fig. 2 is a sectional View of a portion of the same;

Fig. 3 is also a sectional view of the machine of Fig. 1 in which certain parts have assumed different positions from those illustrated in Fig. 2;

Figs. 4, 5, 6 and 7 illustrate certain cam levers forming a part of the pattern wheel of this invention;

Fig. 8 is a schematic lay-out of the pattern control arrangements of this invention;

Fig. 9 is an end view partly in section of the pattern wheel of Fig. 1;

Figs. 10 and 11 illustrate the operation of certain cam members shown in Fig. 9;

Figs. 12 to 15 inclusive illustrate the cam control of the needle actuating members in various stages;

Fig. 16 is a sectional view of a novel mechanism for controlling certain needle cams which may produce a fabric of the interlocked type;

Fig. 17 is another view of the apparatus of Fig. 16;

Fig. 18 illustrates how the apparatus of the type shown in Fig. 16 may be employed as a yarn changer;

Fig. 1.9 is a View of the controlling apparatus for the pattern drum;

Fig. 20 is a top view partly in section of the apparatus of Fig. 19;

Fig. 21 is an end view of the gear mechanism of the apparatus of Fig. 19

Fig. 22 illustrates this invention embodied in a cylinder needle machine; and

Figs. 23, 24 and 25 illustrate a pattern sheet constructed in accordance with one aspect of this invention.

This invention may he exemplified in connection with a circular knitting machine employing either cylinder needles or dial needles or both. In Fig. 1 and the immediately succeeding figures, the invention is employed for controlling the dial needles of a machine using both cylinder and dial needles in the knitting operations. The dial needles 20 are mounted in grooves in a stationary dial 21, as is customary. Associated with the stationary dial 21 is a rotatable plate or dial 22 extending about the same and operatively connected to a driving shaft 23 through the medium of a tooth rack 24 on member 22 and a crown 25 on the shaft 23. As illustrated, the dial 21 supports a row of horizontal latched needles 20 adapted to be advanced and retracted to receive yarn from a pair of yarn feeds 26 and 27 carried by the rotatable member 22 and to incorporate the same into a fabric either by knitting continuous rows of loops thereof to form jersey cloth, or by interlocking, tucking, or otherwise varying the knitting. The needles shown are formed intermediate the ends thereof with outwardly extending butts 28, certain of the needles having short butts and others having long butts. The needles 20 are mounted for horizontal movement in the usual manner in grooves in the dial 21. When the needles 20 are in certain position in the dial 21 they are adapted to be controlled by the knitting cams 2t), 30, 31 and 32 associated with yarn feed 26 and cams 33, 3'4, 35 and 36 associated with the yarn feed 27, the said cams operating on the needle butts to advance or retract the needles. The usual sinkers such as those shown at 37 are provided between the needles.

The cams 29 to 36 are shown for the sake of convenience as arranged to cause a needle movement of the general type described in my Patent No. 1,541,230, whereby there may be provided a multi-color fabric, such as exemplified in my said patent as well as in my Patents Nos. 1,426,576 and 1,541,230 and in my application Serial No. 37,076 tiled June 15, 1925, wherein one yarn is formed into a series of intorknittcd loops in one section of the fabric and a second yarn is formed into a series of inter-knitted loops in another section of the fabric, the yarn not entering into the fabric in any section being interlocked with the interknittcd loops by being caught between the loops in certain, preferably alternate, wales, and being extended behind the interknitted loops in adjacent wales. To this end as will be seen by reference to Figs. 1 and 7, more particularly Figs. 1 to 3, there is provided on the member 22, in advance of yarn feed 27 in the direction of movement of the member 22, a cam 32 arranged to cooperate with the needle butts to move all the dial needles back to their normal non-knitting position after having been slightly over-retracted by the previous cam 31. This over-retraction by cam 31 and subsequent restoration by cam 32 enables a tighter knitting of the fabric to be accomplished. Following the cam 32, but positioned outwardly from the same, is a pattcrn control drum 38, (hereinafter described) forming a part of the pattern control mechanism arranged in the present instance to cause a full advance of certain needles so as to cast off previously received yarn from the latches. Each needle groove in the dial 21 has a control member 39 by means of which the needles may be pushed forwards and the pattern drum is arranged to place certain of the members 39 under the control of a cam 40 which serves to advance the said certain members 39 and their associated needles, thereby enabling the pattern drum 38 to produce the desired needle advancement to the yarn receiving position. Those needles not associated with the members 39 actuated by cam 40'are retained of course in the positions determined by the prior control by cam 32.

The needles are next subject. to control by the cam 33 which will contact with and advance only those needles having long butts or cam 34 which will operate on both the long butt and the short butt needles. suming that cam 33 is operative and cam 34 is non operative, the needles advanced by cam 33 will now occupy a partially advanced position which will not allow the old loops to be cast off by the latches, but will allow the partially advanced needles to hook the yarn from carrier 27. Consequentlyboth the needles advanced by pattern drum 33. (due to cam 40) and the. needles advanced by am 33 will receive the yarn from feed 27 and will be subsequently retracted by cam 35 in the usual manner. The remaining ncedles which were not advanced by either

cam

40 or 33 will not enter into the knitting although it is possible to have

cams

40 and 33 cause all the needles to be either partially advanced or fully advanced. It will appear that a wide variety of stitches or patterns may be knitted by the machine due to the nature of the flexible controlling mechanism. one of which is the intm'lockcd fabricas described more in detail in the above mentioned patents. After cam 35 has retracted the necdlcs, cam 36 restores the needles to their .norlnal position and prepares the. needles for the passage of pattern drum 4H and the associated

cams

29, 30, 31 and 4-2 which corre spond respectively to cams 3.3, 34, and -10. A more detailed description of the various movements of the needles 20 and needle members 39 will be made hereinafter.

In the exemplified apparatus, the'drums 38 and 42 are similar and the following description of drum 38 applies equally well to drum 42. The drum 38 is provided with an axial shaft 43 which is rotatably mounted in bearings supported in brackets 45 on the rotating plate 22, and is arranged for independent rotation in response to the relative rotation of the plate 22 by means of a pcripheral gear -16 meshing with a stationary circlunferential toothed rack 47 extending below the plate 22 and beneath the drum 33. \Vith a view to providing for the actuation of the needle shifting members 35), the drum 38 carries about its periphery a plurality of adjustable elements or plnngers -13 arranged for sliding movement in a plurality of slots 49, so that when a plunger 48 is in an inward position (with respect to the dial 21.) at the time of the passage of the drum over a particular needle shifting member 39, the cam surface 59 projecting from a plunger 48 will contact with a projection 51 on a member 39 and depress the outer end of member 39. Each member 39 so depressed will not be actuated by cam 40 as it will be below the plane in which cam 49 rotates. It will be noted that drum 38 is inthe shape of a truncated cone with the end of smaller diameter facing the dial 2]. The grooves in the periphery of the drum are parallel to each other and to the axis of the drum.

Each of the plungers 48 is bent or otherwise adjusted to fit snugly in its groove so that it will remain in any one position until positively moved by some cam means. Each plunger 48 also has pivoted thereon at the end opposite projection 50 a. small lever 52 which also fits into the groove of the drum 38. At the ends of the two arms of each lever 52 are projections 53 and 54: which are adapted to be operatively associated with certain cams. The members 48 may be held in place in the slots of drum 38 by coiled springs 80 which surround the pattern drum at a plurality of places.

For the purpose of actuating the radial members 48 of each drum at least once during each revolution of the plate there are provided a number of plungcrs 55 in a stationary table 56, and each arranged for sliding movement to a position wherein the arm 53 on lever 52 will be raised because of the presence of the end 57 of plunger 55 or to a second position wherein the arm 54 on lever 52 will be raised by the projection 57 If in the second position the arm 53 is lowered sufliciently to come into the path of a cam 76 which pushes members f2 and 48 inwardly so that member 48 depresses the needle shifter 39.

\Vith a view to controlling the ope 'a-tion of the plunger-s 55, there is provided a pattern determining element, which is exemplilied by an endless perforated tape 59 mounted on a cylinder 60, and cooperating mechanism exemplified by a row of pivoted levers (31 and a row of pivoted levers 62. At the outer ends of levers 61 are formed fingers 63 arranged for insertion in perforations of the tape 59 when such perforations are aligned therewith. The lower pivoted lever 62 has an arm (it which when the lever (32 is moved clockwise raises the linger 63 away from the pattern so as to allow for the periodical step by step movement of the pattern tape 59. The opposite arm 65 when moving in a counter clockwise direction will move a distance determined by whether or not the finger of the associated lever is in a perforation of the pattern. If the finger 63 is not in a perforat on but merely rests on the pattern, the pivoted arm will move until the lug 67 strikes the end of lever 61. However if the finger 63 is located in a perforation of the pattern at that moment, the lever 62 will move a greater distance until the end (36 strikes the end of lever 61. The presence or absence of a perforation under the linger 63 therefore determines the distance lever 62 moves in a counter clockwise direction and the adjustment is such that if a particular finger strikes no perforation in the pattern the plunger projection 57 will be beneath arm 58 of drum lever 52 while if the linger enters a perforation the plunger projection 57 will be beneath arm 54 of the drum lever Each plunger 55 is connected to the lower end of a lever (32 by a wire 68 which passes freely through a nut 69 which closes the end of the passageway in which the plunger 55 works. Each wire (38 is preferably enclosed in an appropriate housing 90 to provide a positive transmission of the movement of lever (32 to plunger 55, as described in my prior application No. 724510 filed July 5th, 1924. A coiled spring 70 enclosed between nut 69 and the end of plunger 55 tends to pull lever (32 in a counter clockwise direction. Lover 61 is biased to move towards the paper pattern by a spring 71. This spring 71 need not exert much force since it is required to move only the small lever 61 and nothing else. Hence the pressure on lever (31 may be made so little that there is no danger of causing linger 63 to produce an undesired perforation in the paper pattern 59. Spring 70 however may be much heavier to insure positive action, but it should be particularly noted that the force exerted by spring 70 produces no rotational movement of lever 61 in view of the relative pivoting points of

levers

61 and 62. The levers 61 are periodically lifted to permit the step by step movement of the cylinder 60 by an eccentric cam 72 rotating in a clockwise direction to cause an upward movement of arm 73, which in a suitable manner causes lever 64; to produce an upward movement of fingers 63. Fig. 2 illustrates the posit ons of the various needle control elements when there is no perforation under the finger 63, while Fig. 3 illustrates the different positions assumed by these elements when linger (33 enters a perforation. From Fig. 2 it will appear that when a linger 63 rests on the paper pattern the correspomling member 48 is retracted far enough to avoid the corresponding needle jack 39, but when as in Fig. 3 a linger (l3 enters a perforation, the corres 'ionding member 48 is advanced so as to depress its needle jack 39.

As previously stated this invention may be employed in a machine employing both cylinder and dial needles or needles of only one type. In Fig. 3 the cylinder needles 95 are also disclosed, although in Fig. 2 as a matter of convenience the needle cylinder-9G has been omitted. The usual sinkers 37 and cam means for the sinkers are shown in. Fi 3 although usually these sinkers 37 will not t he used and can be eliminated from the machine when employing both cylinder and dial needles the said sinkers being of importance only when the dial needles are used with the needle cylinder 96 removed from the machine. Such changes, of course, are apparent to those skilled in the art. When both the cylinder and dial needles are employed with both needles each having a shoulder 83 or 84 thereon, the character of the stitch may be as described in my, United States Patent 1,650,083 of Nov. 22, 1927, in which the stitch is transferred from one type of needle to the other t pe.

A more detailed description of the operation of the pattern drum 38 will now be given. It will be noted that the pivoted pieces 52 may be set by the sliding plungers without disturbing the setting of the members 48 which are actuating or not actuating the needle shifters 39 immediately opposite the plungers 55, depending upon a previous setting of members 48, while a future change in the pattern is being provided for by the actuation of pivoted pieces 52. The sequence of operation of the various parts of the pattern wheel 38 is as follows. There is a sliding plunger individual to each pivoted piece 52 in the grooves of the pattern wheel and as the wheel rotates each pivoted piece is controlled by its individual plunger 55. If a plunger 55 is in a retracted position as shown in Fig. 2 and if the pivotedpiece 52 and member 48 are found to be in their advanced position relative to the needles then the contact between piece 52 and lunger 55 will be made as shown in Fig. 2; ut if the plunger 55 is in a retracted position and the

elements

48 and 52 are also in a retracted position then the contact will be made as in Fig. 4. In either case plunger 55 will Cause the pivoted piece 52 to move in a clockwise direction, throwing arm 54 outside the periphery of the drum. On the other hand if a particular plunger 55 is in an advanced position and its

elements

52 and 48 are in a retracted position, the contact will be made as shown in Fig. 3; but if the plunger 55 is in an advanced position and the

elements

52 and 48 are also in an advanced position the contact between plunger 55 and piece 52 will be made as shown in Fig. 7. In either of these two latter cases the contact will throw the pivoted piece in a counter clockwise direction, bringing arm 53 outside the periphery of the pattern Wheel. Ofcourse while the drum is passing over the plungers 55 the needles opposite the plungers are undisturbed by the new settings of the pieces 52 but are being controlled by settings of the members 48 resulting from the last rotation of the wheel 38 over the plungers 55. After the just described setting of the pieces 52, they, during the rotation, come under the control of two

cams

76 and 77 mounted on opposite sides of the wheel 38 as projecting outside the drum will next be aetu ated by cam 7 6 which will contact with the arms 53 and advance the elements and 48 towards the needles, while those pieces 52 whose arms 53 are within the drum will be unactuated by cam 76. This is shown in Fig. 10. Subsequently each piece 52 will pass by cam 77 and those pieces 52 whose arms 54 project beyond the drum will be actuated by cam 77 and retracted away from the needles while those pieces 52 whose arms 54 are within the drum will not be actuated by cam 77. This operation is shown in Fig. 11. After each piece 52 has passed cam 77 it is now ready to perform a fresh pattern control on the needles during the path of the drum around the machine and the drum will continue this control until a new setting of the members 48 has been produced by plunger-s 55 and

cams

76 and 77. It will of course be noted that the actuation of each set of

elements

52 and 48 by

cams

76 and 77 takes place at a time when it is not operating on any needle shifter 39.

Fig. 6 illustrates in more detail how the lever 52 is pivoted to the end of member 48 at a point where member 48 is much thinner than at other points. This thin portion is also shown bent or ridged at two points to provide a spring action for holding by friction each member 48 in its respective slot. An alternative structure is shown in Fig.5

where, instead of a lever 52, a lever is pro vided fastened to the main slidable member 74 equivalent to member 48, by a ball and socket connection. Either lever 7 5 or its associated member may be suitably bent to provide the necessary spring action for holding them in the slots of the'drum 38.

As will be apparent from the foregoing description, a wide variety of fabrics may be roduced in accordance with the invention, y the employment of pattern bands 59 ha.v ing various types of configurations. For example whenever a machine such as that above described is to be employed for interlocking to produce a fabric such as shown in my prior Patent No. 1,426,576 the perforations in each pattern row would appear only ad jacent those fingers 63 with which there was not aligned a perforation in the preceding row of perforations; while if the machine is to be used to produce a fabric wherein the pattern efi'ects vary from row to row, in the knitting, the perforations may appear at any such points as will cause the. proper needle actuations for that purpose. As will be apparent the invention makes possible the variation of the pattern from row to row and from wale to Wale of the fabric according to any predetermined design and accomplishes this result in a ready and facile manner. Moreover the invention may be employed to form an exceedingly finely knit fabric containing varied pattern effects, since mechanism such as exemplified is readily adapted for use in the actuation of needles spaced as closely as twenty-seven or more to the inch.

In practice it is ordinarily desirable to perform the knitting operations with a row of needles extending entirely around the needle dial and it will be evident from the above that once the elements 48 are adjusted, each element 4.8..will actuate a needle shifter 39 at various points around the needle dial since usually there will be several times as many needles as there are elements 48.

It will now be in order to explain more in detail the structure and operation of the needle jacks 39. These jacks 39 are suitably bent to provide enough friction to hold them in place in their slot-s unless positively moved by a cam. Special notice should be taken of the wedge shape of projection 51 (Fig. 12) and the lower projecting point of cam 92 or 40' which fits 1n the wedge and holds up that. end of jack 39 While it is being retracted or advanced and prevents any tendency of the jack 39 to fall to the bottom of the slot during its actuation. This structure will generally obviate the necessity of having an enlargement on the lower side of the outer end of each jack 39 and heneath projection 51 for riding on the bottom of the slot for maintaining the jack 39 raised when actuated by

cams

40 or 92.

Prior to the passage of a yarn carrier 27 and a pattern wheel 38, all the needle shifters are first actuated by a cam 92 which retracts all the needle shifters 39 which had previously been advanced by the last pattern wheel. See Fig. 1 and more particularly Fig. 12

' for the showing of the cam 92. This cam 92 is suitably supported in a manner not shown by the rotatable plate 22. As shown in Fig. 12, the operation of cam 92 causes the ends of all the needle shifters 39 to project beyond the outer edge of the stationary dial 22. After the passage of cam 92 the needle shifters are next actuated by a cam 93, shown in Figs. 1 and 13, which raises the outer ends of all the needle shifters. The needle shifters remain in this raised position even after the passage of cam 93 by reason of the fact that each needle shifter fits snugly in its slot. because of bent portions 91 of the needle shifters. The needle shifters are now ready for the passage of a pattern wheel 38. Those elements 48 which have previously been advanced Will have their projections 50 bear down on projections 51 of the needle shifters as shown in Fig. 14, Those needle shifters however, which correspond to elements 43 in a retracted position, will not be depressed but will remain raised to'the position caused by cam 93. After this selective control of the shifters 39 by the pattern wheel, the shifters are next subjected to actuation by a cam 40 as shown in Fig. 15. This cam 40 is so arranged as to actuate only those needle shifters which have remained raised after the passage of the pattern wheel and the cam 40 pushes the raised shifters 39 inwin'dly so as to advance their associated needles into the path of certain needle cams previously described. The needle shifters will later be subjected to control by

cams

94 and 95, (see Fig. 1), which precede pattern wheel 41 and correspond respectively to

cams

92 and 93 just described. Cam 42 corresponds of course to cam 40.

It Will be understood that the dial needles of the machine of Figs. 1, 2 and 3 cooperate in the usual manner with the associated cylinder needles 95 suitably mounted in slots in the stationary cylinder 96, an appropriate rotatable cam supporting cylinder 97 supporting the

usual cams

103, 98 and 99 adjacent yarn carrier 27 and

cams

100, 101 and 102 adjacent yarn carrier 26. The cam cylinder 97 is supported bv rotatable plate 22 by

suitable brackets

104, 105.

In the previous description it has been assumed that adjustable cam 33 is in a needle actuating position to advance the long butt dial needles. Instead of cam 33 it may be desired to have the lower cam 34 in a needle actuating )osition where it will advance both the long lmtt and the short butt needles. This invention provides automatic mechanism for selecting which of the

cams

33 or 34 will be operative at any particular time, the mechanism also controlling the selection of one of the corresponding

cams

29, 30 adjacent drum 41. Thisautomatic mechanism will now be described. In the exemplified apparatus of Figs. 1, 2 and 3, there are three more levers 61 than there are elements 48 in the pattern wheel. These three extra levers are marked 106, 107 and 108 in Figs. 1 and 8. These three levers have lingers which may or may not pass through the paper pattern 59, depending on the presence of absence of perforations therein just in the same manner as lingers 63 previously described. Coopcrating with the lovers 100i to 108 are three pivoted levers 109, 11.0 and 111 which are identical with levers (52 previously described. The lower ends of levers 109 to 111 are by wires in suitable housings fastened to the ends of slidable pluugers 112 to 114 located in grooves in the stationary plate 56 alongside the previously described plungers 55 for the pattern wheels. Reference is made particularly to Figs. 10 and 17. These levers 112 to 114 have projections 115 to 117 respectively so that the positions of these projections depend upon the presence or absence of a perforation in the pattern paper opposite the levers 106 to 108. Suitably supported by rotatable plate 22 in a path above plungers 112 to 114 are three pivoted members 118, 119 and 120. The levers 118 to 120 in passing over plungers 112 to 114 may or may not be raised by the projections 115 to 117 de )ending on their positions previously contro led by the paper pattern. Assuming that projection 117 raises lever 120, this will cause lever 120 to raise arm 121, the end of which will then rest on a shoulder near the upper end of pivoted member 122, at the same time releasing an arm 123 from the shoulder of member 124 and allowing arm 123 to fall. The upward movement of arm 121 will cause rod 125 to rotate and cause thecam 126 attached thereto to strike the arm 127 and move it against the post 128. Arm 127 is integral with a collar 129 rotatable around a shaft 130. Cam 33 is also attached to collar 129, so the movement of arm 127 thrusts cam 33 in a clockwise direction so as to cause the advancement of the long butt needles. If however, pivoted arm 118 is raised by rojection 115 the arm 123 will be held raise by the upper shoulder of arm 124 while arm 121 will fall. The raising of arm 123 turns the rod 131 connected thereto so as to cause the attached 1 cam 132 to move arm 133 against post 134.

Arm 133 is attached to the shaft 130 to which also is attached one end of cam 34. Hence the movement of arm 133 a ainst post 134 will cause cam 34 to be turned clockwise and cause the advancement thereby of all the needles, both the long butt and the short butt type. Arm 127 tends to be pulled away from post 128 by a spring 135 attached to a pin 136 on collar 129, while a similar spring 137 tends to pull arm 133 in a counter clockwise direction. Another alternative is to have projection 116 on plunger 113 in such a position that it contacts with and raises the middle lever 119. This will cause lever 119 to raise arm 138 a distance suflicient to allow either of

arms

121 or 123 to be released from the shoulders 122 or 124, so that for such a pattern setting of plunger 113 neither cam 33 nor cam 34 would be operative. The mechanism just described therefore enables the paper pattern to have at any particular time cam 33 effective or cam 34 etl'ective or neither cam effective.

It will be apparent from Fig. 16 that the levers 118 to 120 project down through a suitable aperture in rotatable plate 22 to enable them to be actuated by the plungers 112 to 114 lying in grooves in the stationary bed 56. Similarly an aperture is provided in plate 22 over the

cams

33 and 34 to enable the described controlling, apparatus to function.

Suitable supports for the

rods

125 and 131 are shown at the points 139 and 140. The arms 122, 124 and 138 are of course integral with each other and also integral with the portion 141 which contacts with a spring 41. Pattern paper 59 through pattern wheel f 38 and cam 40 can cause all needles to be advanced to full knitting position wherein the old loops will be dropped below the latches and loops formed of the new yarn or the pattern paper can cause only selected needles to be advanced to the full knitting position. If we assume for the moment that cams 33 and 34 are both in a non-operating position, then those needles selected by pattern wheel 38 will knit loops from the yarn from car rier 27 and the needles not selected by pat tern wheel 38 will not enter into the knitting when yarn carrier 27 passes. The control by pattern wheel 38 is of course independent of whether the needles have long butts or short butts. If now cam 33 is in an operative position, as shown in Fig. 8, then those long butt needles which were not fully advanced by cam 40, will be partially advanced by cam 33 to a position where they will hook the yarn from carrier 27 without forming aloop thereof and without the previously formed loop passing below the open end of the latches. Of course in Fig. 8 the needles with the heavy marks for the needle butts indicate long butt needles and the needles with the light marks for the needle butts loo indicate short butt needles. If however cam 33 is in a non-operative position and cam 34 is operative it should be noted that cam 34 advances both the long butt needles and the short butt needles and furthermore advances all of said needles the same distance as cam 40 is capable of advancing them. Hence it it is desired to have all needles knit yarn from carrier 27 there is no need of having pattern paper 59 set the pattern wheel 38 for such operation, although that can be done if desired, but a simpler procedure would be to have pattern paper 59 merely place cam 34 in operative position.

Fig. 18 shows how the apparatus of Figs. 16 and 17 may be modified to control the yarn carriers so that at one time the pattern paper 59 may determine that one yarn carrier is in knitting position and at another time a different yarn carrier is in knitting position. Thus the pivoted

elements

143, 144 and 145 are three yarn carriers which are to be controlled by the paper pattern 59 so that any one of the three may be in the knitting position. These three yarn carriers by means of springs 146 are normally biased so as to be withdrawn from the knitting position and in contact with a stop 146.

are in this withdrawn position while yarn carrier 143 is in advanced position where the. yarn carried thereby enters into the knitting. The yarn carriers have right angle members 147, 14-8 and 149 which are adapted to be lifted at times by

cam arms

150, 151 and 152 respectively. which are fastened to the ends of

rotatable rods

153, 154 and 155 respectively. The opposite ends of these rods are fastened to

arms

156, 157 and 158, each of which is adapted to rest on the shoulder of the pivoted member 159 which is biased towards these arms by a spring arrangement 160. These arms 156. 157 and 158 may be selectively raised by three cams such as cam 118 of Fig. 17, one cam being under each arm. Plungers similar to plungers 112, 113 and 114 of Fig. 17 may then be selectively operated by the paper pattern to determine which one of the cams will raise its associatod arm so as to rest on shoulder 159 while allowing the other two arms to remain in their lower position. That arm which is raised causes its associated yarn iarrier to be advanced to the knitting position. and since arm 156 is shown resting on shoulder 159 it follows that yarn carrier 1.1;) is in a knitting position where its yarn can be hooked by the needles in the usual manner. It is to be understood that the mechanism just described may also be supported in a suitable manner from rotatable plate 22 of Fig. 1 so is to form an operative part of the machine illustrated therein in place of or in addition to the mechanism of Figs. 16 and 17. If it is used in addition to the a ,)paratus of Figs. 16 and 17 it will be obvious that a different et of cams corresponding to elements 118 to 120, and a different set of plunger-s corresponding to elements 112 to 114 would be employed along with the necessary perforations in the pattern paper.

The apparatus associated with the pattern paper drum 60 will now be described in greater detail. reference being made to Figs. 19 to 21 as well as to Figs. 1 and. 2. The cylinder 60 is driven by a shaft 161 which ends in a gear meshing with the toothed rack 24. Shaft 161 by

gears

163 and 16 1 drives a shaft 165 which in turn drives a Geneva movement shown in Figs. 19 and 21, by means of which the cylinder 66 is given a step by step rotation. Briefly a gear 166 on shaft 165 meshes with a gear 167 on shaft 168. This shaft 168 carries cam 72 previously described and also a cam 169 which meshes with a toothed wheel 17 O. The shaft carrying the toothed wheel 170 drives the shaft supporting the perforated pattern cylinder 60. Cam 72 as it is rotated strikes the end of arm 73 which is pivoted to shaft 171. This causes arm 73 to be lifted a certain distance thereby lifting also a rod 172 which is supported from arm 73 and extends underneath all the levers 61. This will obviously raise the. lovers 61 away from the paper pattern at the. time cam 169 is ready to cause the next step by step movement of the cylinder 60. Shaft 171 is suitably supported by members 173 and 174 which also support the cylinder 60. The major portions of the levers 61 are covered by a suitable slotted housing 175 which of course holds the series of small springs 71 (see Fig. 2) which bias the levers 61.

The cylinder 60 is readily removable from its supports for the renewal of the pattern or otherwise by the arrangement shown in Fig. 20. Cylinder 60 derives its rotation from shaft 176 which enters one end of the cylinder. The other end of the cylinder rotates around a stationary rod 177 which may be pulled out of the cylinder by a handle 178.

the said rod 177 being normally held in the cylinder by the action of a spring 179.

lVhile the pattern controlling apparatus of this invention has been described in connection with a dial needle machine, it is to be un derstood that its use is not as limited but may be employed with other types of machines. In Fig. 22, for example, it is illustrated as controlling the cylinder needles of a knitting machine. 180 is the pattern paper mounted on the perforated pattern cylinder 181. A plurality of levers 182 are adapted by the character of the pattern to control the movements of associated levers 183 which in turn by wires 184 control the movementof a series of plungers 185 which correspond to plungers 59 of Fig. 2. These plungers control the setting of the levers 186 in the grooves of pattern wheel 187, and these plunger-s, being actuated by cam 188 and another cam similar to cam 76 of Fig. 2, control the longitudinal movement of the members 189 to which the levers 186 are pivoted. Those members 189 in their advanced position are adapted in the revolution of drum 187 to depress the outer ends of the pivoted controls 190 individual to the cylinder needles 191, while the members 189 which are in a retracted position will not contact with the control levers 190. The longer arms of the levers 190 are forked at the end and embrace a projection on the lower end of each needle. \Vhen the small arm of a lever 190 is depressed by a member 189, the associated needle is raised a definite distance to place the needle under the control of knits ting cams mounted on the rotatable cam ring 192. Those needles which are not raised by the levers 190 at any particular time are, not placed under the control. of the knitting cams and hence such needles do not enter into the knitting. Pattern wheel 187, of course, rotates an its axis and revolves around the neodle cylinder 193 in the same general in anner as pattern wheel 38 of Fig. 1. It is believed a further description of the various parts of Fig. 22 is unnecessary as it will now be clear how the pattern control of this invention i imparted to the cylinder needles 191 instead of the dial needles of Fig. 1.

The pattern drum 38 as described above is preferably conically in shape when it is to be employed with a circular type of knitting machine in order to allow it to travel in a circular path around the needle cylinder or dial. It is obvious however that the conical shape is'not needed if the drum 38' is to be used in the straight or fiat type of knitting machine for in such a case the drum 38 would of course be cylindrical in form while operating in the same general manner as described for the circular type of machine. It is furthermore to be understood that drum 38 may be employed for controlling other movable parts of a knitting machine in place of the needles, such as the yarn feeders or changers.

It has been assumed in the foregoing description that the

pattern

59 or 180 was made of paper perforated in accordance with the design desired to be knitted. An alternative pattern arrangement is disclosed in Figs. 23 to 25 in which the paper sheet 194 is not perfm'ated in the ordinary sense with holes only at certain points, but is perforated in regular rows both longitudinally and crosswise of the sheet, all rows having the same ninnber of perforations in the same regular positions. Certain of the holes 197 in each row however are provided with metallic projections suitably fastened to the paper. These projections may comprise a two part snapper as they are known in the dress making trade. The lower part 195 of the snapper has a shank with an enlarged rounded top and this shank is adapted to pass through a perforation in the paper and be firmly held in a recess in the portion 1960f the snapper. It is intended that the height of the snapper 196 above the paper will be such that if a pivotcdfinger lever 198 contacts with the paper one type of control will be exerted on any pattern wheel associated therewith, while if the linger 198 contacts with a snapper 196, a dill'ercnt control of the pattern wheel or other associated mechanism will take place. Thus, if the pattern 194 is employed in place of the pattern 59 of Figs. 2 and 3, the levers can he sh adjusted that a lever contacting with a snapper of pattern 194 will function the same as a lever contacting with the paper of pattern 59 so as to cause an advancement of a member 48 of pattern wheel 38 and a lever contacting with the paper of pattern 194 will function the same as a lever passing through a perforation in pattern 59 so as to cause a member 48 of pattern wheel 38 to be retracted. The pattern 194 is therefore capable of performing the same functions as pattern 59 of Fig. 2. There is of course no need of having the drum'199 perforated as is the case of drum (it) of Fig. 2 since the finger levers 198 are not required to pass through the paper 194. The drum 199 however may at ouch end he provided with upright pins 200 which pass through perforations in paper sheet 194 in order to move the pattern with the drum. It is of course to be understod that the metallic projections may be formed and attached to the pattern sheet in widely different ways and the invention also is not limited to the case where the sheet 194 is of paper as other thin materials may be employed, such as cloth or a thin flexible sheet of metal.

It is also to be understood that the snap pers 196 may in some desired instances be of diti'erent heights to impart further selective movements to the finger levers 198. Thus in Fig. 25 a snapper 205 is shown which has a reater height than the snappers 19?. A finger lever 198 striking a snapper 205 would receive one selective movement, another lever 198 striking snapper 196 would receive a second selective movement and a lever 198 striking the paper 194 would receive a third selective movement, each movement being of a different magnitude. Such a set of movements may be utilized for a variety of purposes such as that for which is used the large hole, small hole and no hole paper pattern of my prior application Serial N 0. 56,895 tiled Sept. 17, 1925.

While in Fi 1 a machine embodying two yarn feeds am two drums has been exemplified, it will be understood that any further number of yarn carriers and corresponding pattern controlling mechanisms may be employed. It will be appreciated however that the space between successive drums, such as the drums 38, should ordinarily be sufficiently greater than the space occupied by the actuating members, as exemplified by the plungers 59, so as to permit the resetting of the pattern band, if desired, between the operation of the actuating members upon successive drums. However if such resetting is not desired between certain successive drums, these drums may be arranged close together for actuation in response to a single position of the contigurations presented by the pattern band. Furthermore, in certain cases, certain of" the drums may be omitted and an ordinary pattern wheel or other suitable mechanism employed at certain of the yarn feeds.

It will be appreciated that the invention not only contemplates imparting selective actuations to a row of latched needles but also to a row of other types of needles such as spring needles; and in its broader aspects, it; is adapted to be successfully employed in connection with any'of a wide variety of types of machines, circular or otherwise.

Since certain changes may be made in the above constructions and dill'ercnt embodiments of the invention could be made without departing from the scope thereof, it is intended that all matter contained in the above description or shown in the accompanying drawings shall be interpreted as illustrative and not in a limiting sense.

It is also to be understood that the following claims are intended to cover all of the generic and specific features of the invention herein described, and all statements of the scopeof the invention which as a matter of language might be said to fall therebetween.

The invention claimed is 1. A knitting machine comprising a circular row of yarn manipulating members, a drum' mounted for movement around said members and for rotation in response to said movement, a plurality of slidable means mounted on said drum, a first cam for advancing said means towards said members, a second cam for retracting said means away from said members, said slidable means being arranged in said advanced position to control each of a plurality of said members spaced around the machine and in their retracted positions being inoperative to control said members, pattern mechanism, and means, responsive to said pattern mechanism and operative at a time when one of said advanced slidable means is passing on to an associated member the pattern determination due to its advanced position, for conditioning said one slidable means to secure its future retraction when said one slidable means again passes said second cam.

2. A knitting machine comprising a circular row of yarn manipulating members, a drum mounted for movement around said members and for rotation in response to said movement, a plurality of slidable means mounted on said drum, a cam for advancing said slidable means towards said members, a second cam for retracting said means awav from said members, said means being arranged in their advanced position to control each of a plurality of said members spaced around the machine and in their retracted position being inoperative to control said members, pattern mechanism, and means controlled by said mechanism for imparting to a portion of each of a plurality of said slidable means a movement in a direction substantially perpendicular to the axis of sa d drum without any substantial movement n a direction parallel to said axis, whereby said slidable means may be selectively actuated by said cams during the next passage of said cams.

3. A knitting machine comprising a clrcular row of yarn manipulating members, a drum mounted for movement around said members and for rotation in response to said movement, a plurality of slidable means mounted on said drum and controlling at times said members, pattern mechanism, and means controlled by said mechanism for imparting pattern determinations to said slidable means while maintaining said members substantially stationary with respect to movements in a direction parallel to the axis of said drum, and means for subsequently moving the preselected slidable means in a direction substantially parallel to the axis of said drum for securing the control of said members.

4. A knitting machine comprising a circular row of yarn manipulating members, a drum mounted for movement around said members and for rotation in response to said movement, a plurality of slidable means mounted on said drum which in an advanced position are arranged to control said members and in a retracted position are inopera tive to control said members, pattern mechanism, means controlled by said mechanism for selectively actuating one of said slidable means while maintaining said one means away from said advanced position and means operating subsequently to said last controlling means for slidably moving said one slidable means to said advanced position.

5. A knitting machine comprising a circular row of needles, a drum mounted for movement relative to said needles and for rotation in response to said movement, a plurality of slidable means mounted on said drum which in an advanced position are arranged to con trol said needles and in a retracted position are inoperative to control said members, pattern mechanism, a slotted stationary e1ement over which said drum passes periodically, means in said slots selectively actuated by said mechanism for impart-mg corres )onding selective actuations to said slidable means while permittin I each slidable element to remain in an a( vanced or retracted position in accordance with a prior setting, and cam means for subsequently advancing certain of said slidable means and retractin other slidable means as determined by said selective actuations.

6. A knitting machine comprising a circular row of needles, a drum mounted for movement relative to said needles and for rotation in response to said movement, a plurality of slidable means spaced around said drum and mounted thereon, a cam for advancing said slidable means to a position operative to control said needles, a second cam for retracting said slidable means from said advanced position, pattern mechanism and means controlled by said mechanism for controlling the position of at least a portion of said slidable means with res ect to the axis of said drum to selectively etermine which of said cams will subsequently actuate one of said slidable means.

7. A knitting machine comprising a circular row of needles, a pattern drum mounted for movement around said row and for rotation in response to said movement, a plurality of slidable means mounted on said drum, said means being arranged to control said needles when in an advanced position on said drum and being inoperative to control said needles in a retracted position, a cam for advancing said means, a cam for retracting said means,

pattern mechanism, means responsive to said mechanism and contacting with one part of said slidable means to insure future advance by said first cam and contacting with a different part of said slidable means to insure future retraction by said second cam.

8. A knitting machine comprising a circular row of needles, a pattern wheel mounted for movement around said row and for rotation in response to said movement, a plurality-of slidable elements carried by said wheel, a member pivoted to each of said elements, and means contacting with said members for causing said elements to selectively determine the knitting operations of said needles.

9. A knitting machine comprising a circular row of needles, a pattern wheel mounted for movement around said row and for rotation in response to said movement, a plurality of slidable elements carried by said wheel, a member pivoted to each of said elements and having a portion projecting at times away from the surface of said wheel, and means contacting with said projecting portions for causing said elements to selectively determine the knitting operations or said needles.

10. A knitting machine comprising a circular row of needles, a pattern wheel mounted for movement around said row and for rotation in response to said movement, a plurality of slidable elements carried by said wheel, a member pivoted to each of said elements and held by friction against said element in any desired position, each of said members having a portion projecting at times away from the surface of said wheel, and means contacting with said projecting portions for causing said elements to selective y determine the knitting operations of said needles.

11. A knitting machine comprising a circular row of needles, a pattern wheel mounted for movement around said row and for rotation in response to said movement, said wheel having a pluralit of grooves in its periphery arranged suli stantially parallel to the axis of said wheel, a slidable element in each of a plurality of said grooves, a separate pivoted member carried by said wheel for controlling each of said elements, control means which in one position rocks said members in one direction and in a second position rocks said members in the opposite direction, and means controlled by said elements for controlling the knitting operations of said needles.

12. A knittitng machine comprising a circular row of needles, a pattern wheel mounted for movement around said row and for rotation in response to said movement. a plurality of slidable elements carried by said wheel, an adjustable member mounted on each of said elements, cam means for controlling said members, and means controlled by said elements for controlling the knitting operations of said needles.

13. A knitting machine comprising a circular row of needles, a pattern wheel mounted for movement around said row and for rotation in response to said movement, a plurality of slidable elements carried by said wheel, needle controlling members located between said wheel and said needles and contacting at times with said elements when said elements are in a certain position on said wheel, means carried by said wheel for receiving a future pattern determination for each of a plurality of said elements at the time each said element is in contact with its associated member in accordance with a previous pattern setting of said elements, and means operating subsequently for imparting the new pattern determinations to said elements.

14. In a knitting machine, in combination, a series of yarn manipulating members arranged to have pattern determining actuations imparted thereto, a drum mounted for movement with respect to said members and for rotation in response to said movement, a plurality of grooves in the periphery of said drum, slidable elements in said grooves, means controlled by one portion of said elements for controlling said members, and means operating uponanother portion of each of said elements for imparting a pattern determining actuation thereto at the time the said first portion of each element is operating to control one of said members.

15. A knitting machine comprising a circular row of needles arranged to have pattern determining actuations imparted there to, a pattern mechanism including a patern I sheet for said machine, a drum mounted for movement around said needles and for rotation in response to said movement, a plurality of adjustable elements mounted on said drum for controlling said needles, and means for setting each of said elements in accord ance with said pattern sheet at the time each element is operating to pass the pattern control on to said needles in accordance with a previous pattern setting of said elements.

16. A knitting machine comprising a circular row of needles, a drum mounted for movement around said needles and for rota- 1 tion in response to said movement, a plurality of elements mounted on said drum arranged in one position to secure the control of each of a plurality of said needles and in a second position being inoperative to control the needles, cam means for moving said elements to either of said positions, pattern mechanism, means individual to each elcn'ient arranged to be set in accordance with said pattern mechanism prior to the passage of said cam means, and means controlled by said pattern mechanism for setting each of said individual means at a time when its associated element is passing on to an associated. needle the pattern determination secured by a previous setting of said individual means.

17. A knitting machine comprising a circular row of needles, a drum mounted for movement around said needles and for rotation in response to said movement, a control member individual to each needle, adjustable elements mounted on said drum and arranged to contact at times with said members during the rotation of said drum, a perforated pattern sheet, slidable cams adapted to be set in accordance with said pattern, and means individual to each element for con tacting with one of said cams at the same time the associated element is contacting with one of said members.

18. A knitting machine comprising a circular row of needles, a pattern wheel mounted for movement around said row and for rotation in response to said movement, a plurality of grooves in the periphery of said drum, a slidable element in each of said grooves, each of said elements being relatively thick over the major portion of its length but thinner near one end thereof, an adjustable member attached to said element at the thin portion, means for imparting pattern determinations to said members, and means controlled by said elements for controlling the knitting operations of said needles.

19. A knitting machine comprising a circular row of dial needles, a cam ring mounted for rotation around said row, a pattern wheel for said needles mounted on said ring and having its axis directed substantially towards the center of said row, said wheel being conically shaped with its larger end remote from said needles, a plurality of grooves in the periphery of said Wheel arranged parallel to the axis of said wheel, an elongated slidable element mounted in each of said grooves and having a projecting cam surface near the small end of the wheel, a pivoted lever mounted on each of said elements near the large end of the wheel and also located in the grooves, said lever having two cam surfaces on opposite sides of the pivot and projecting at times beyond the surface of the wheel, and pattern determining means for contacting at times with either of said two last mentioned cam surfaces.

20. A knitting machine comprising a row of needles, :1 pattern wheel mounted for movement with respect to said needles and for rotation in response to said movement, slidable elements carried by said wheel, a separate adjustable member mounted on each of said elements, pattern mechanism for determining the positions of said members, a cam contacting with said members when said members are in one position for causing said elements to be moved towards said needles,

' a cam contacting with said members when said needles, and means responsive to the movement of said elements for controlling the knitting operations of said needles.

21. In a knitting machine, in combina tion, a series of yarn manipulating members arranged to have iattern determining actuations imparted thereto, a conicall shaped drum mounted for movement wit 1 respect to said yarn manipulating members and for rotation in response to said movement, a plurality of grooves in the periphery of said drum arranged parallel to the axis of said drum, a plurality of slidable elements carried in said grooves, and means including said elements to cause pattern determining actuations to be imparted to said yarn manipulating members in accordance with the sliding movements of said elements.

92. A knitting machine comprising a row of needles, a pattern wheel mounted for movement along said row and for rotation in response to said movement, said wheel being in the shape of a truncated cone having a plurality of grooves in its periphery, said grooves being substantially parallel to the axis of said wheel, adjustable elements mounted in said grooves and means controlled by said elements for determining the knitting operations of said needles in accordance with the sliding movements of said elements in said grooves.

23. A knitting machine comprising a circular row of needles, a pattern wheel mounted for movement around said row and for rotation in response to said movement, said wheel being comically shaped and having a plurality of groves in its periphery arranged parallel to the axis of the wheel, a slidable element in each of a plurality of said grooves, a member pivoted to each of said elements and having a portion projecting at times beyond the surface of said wheel, and means contacting with said projecting portions for causing said elements to selectively determine the knitting operations of said needles.

24. A knitting machine comprising a circular row of needles, a patcrn wheel mounted for movement around said row and for rotation in response to said movement, said wheel being conically shaped and having a plurality of grooves in its periphery arranged parallel to the axis of said wheel, a slidable element in each of a plurality of said grooves, a member pivoted to each of said elements near the end thereof opposite said needles, control means which in one position rocks said members in one direction and in a second position rocks said members in the opposite direction, pattern mechanism for controlling the positions of said control means, cam means contacting at times with said members for moving said elements, and means responsive to the movements of said the knitting operations of said needles.

' 25, A knitting machine comprising a circular row of needles, cams for operating said needles, a control member for each needle for determining the positions of said needles relative to said cams, cam means for actuating said members when in one position, while remaining unactuated by said cam means when in a second position, a pattern wheel for controlling the positions of said members relative to said cam means, said wheel being mounted for movement around said row andfor rotation in response to said movement, said wheel being in the form of a truncated cone with grooves in the periphery parallel to the axis of the wheel, slidable elements mounted in said grooves adapted in one position'to depress said members and in a second position to leave said members undepressed, and pattern control mechanism for controlling the slidable movements of said elements from one of said positions to the other.

26. A knitting machine comprising a circular row of dial needles, cams for operating said needles, a radially slotted stationary ring around said needles, control members for said needles located in said slots, cam means for pushing said control memhers forwards when said control means are in one position but not when in a second position, a'pattern wheel for controlling the positions of said control members, said wheel being in the shape of a substantially truncated cone, mounted for movement around said ring and for rotation in response to said'movement, a plurality of slots in the periphery of said wheel, slidable elements in said slots which in one position depress said control members during the rotation of said wheel and in a second position fail to contact with said members, and means for controlling the positions of said slidable elements.

27. A pattern wheel for a knitting machine and comprising a metallic wheel substantially in the form of a truncated cone with slots in the periphery thereof arranged parallel to the axis of the cone, slidable elements in said slots, each of said elements having a cam surface at the smaller end of said Wheel, and a member pivoted at the opposite end of each element and also located in said slots, said members having a cam surface on opposite sides of said pivot, said cam surfaces projecting away fromthe axis of the cone.

28. A knittin machine comprising a circular row of neec les, a pattern wheel mounted for movement around said row and for rotation in response to said movement, said wheel bein substantially in the shape of a truncated cone with the smaller end mounted adjacent said needles, grooves in the periphcry of said wheel arranged substantial] allel to the axis of said wheel, slidab e elements in said grooves, and means controlled by the slidable movement of said elements for controlling said needles.

29. A knitting machine comprising a circular row of needles, a pattern wheel mounted for movement around said row and for rotation in response to said movement, slots in the periphery of said wheel, slidable elements in said slots, a member pivoted to each of said elements at the end of said elements opposite said needles, each of said members having a cam surface on opposite sides of its pivot, cam means operating on one of said surfaces for moving said elements away from the needles, cam means operating on the other of said surfaces for moving said elements towards the needles, and means responsive to the movement of said elements for controlling said needles.

30. A knitting machine comprising a pattern drum, a pattern mounted on said drum marked in accordance with a predetermined design to be knitted by said machine, a pivoted member having an arm contacting at times with said pattern, spring means tending to move said arm towards said pattern, a second pivoted member mounted in such a position relative to said first member that when said second member is moved in a certain direction an arm of said second member contacts with and exerts a pressure on a portion of said first member without producing a substantial force tending to rotate said first member, and spring means tendingto move said second member in said second direction, whereby the distance said second member is moved depends upon the position of said first member.

31. A knitting machine comprising a pattern drum, a perforated paper pattern on said drum, a pivoted member having an arm contacting at times with said pattern, spring means tending to move said arm towards said pattern, a second pivoted member having a forked end, one arm of said fork being adapted at times to contact with one portion of said first member and the second arm of said fork being adapted to contact at times with a second portion of said first member on the opposite side of the pivot of said first member, spring means tending to move said second member so as to cause the second arm of said fork to contact with said first member in such a manner that no substantial tendency of said first member to rotate is produced thereby, and means for causing at times said first fork to contact with said first member to produce partial rotation-thereof.

32. A knitting machine comprising a pattern wheel slotted in its outer surface, slidable elements in said slots, means controlled by said elements for controlling the knitting-operations of said machine, a pattern drum, a

par-