US1866945A - Knitting machine - Google Patents

Description

y 12, 1932- v. LOMBARDI 1,866,945

I KNITTING MACHINE Filed Aug. 5, 1930 17 Sheets-Sheet l INVENTOR Vilma/($5M ATTO EY u y 9 v. LOMBARDI I 1,866,945

' KNITTING MACHINE Filed Aug. 5, 1930 17 Sheets-Shget 2 Jeat n ectz'on/ INVENTOR AT RNE'Y July 12, 1932.

V. LOMBARDI KNITTING MACHINE Filed Aug. 5, 1930 17 Sheets-Sheet 4 lNVENTO-R Emma/1%;

ATTORNEY July 12, 1932. I v. LOMBARDI v I 1,866,945

KNITTING MACHINE Filed Aug. 5, 1930v 17 Sheets-Sheet 5 INVENTOR V l d1; ff

ATirNEY July 12, 1932. v. LOMBARDI 1,866,945

KNITTING MACHINE Filed Aug. 5, 1930 1,7 Sheets-Sheet 6 INVENTOR Mimi; a

ATTNEY July 12, 1932. v. LOMBARDI 1,866,945

KNITTING MACHINE Filed Aug. 5, 1930 17 Sheets-Sheet 7 V INVZENTOR 11m; 0111604211;

ATTRNEY v. LOMBARDI 1,866,945

KNITTING MACHINE Filed Aug. 5, 1930 17 Sheets-Sheet 8 July 12, 1932.

WWN. TWIN i E N94 kh Q N $3 N.

r bmw ,4

INVENTOR July 12, 1932. v. LbMBARDI 1,866,945

KNITTING MACHINE v Filed Aug. 5, 1950 17 Sheets-Sheet 9 Vm i i mw ATT RNEY .July 12, 1932. v, LOMBARD] 1,866,945

KNITTING MACHINE Filed Aug. 5, 1930 17 Sheets-Sheet 10 ATTORNEY July 12, 1932. y, LOMBARD] 1,866,945

KNITTING MACHINE Filed Aug. 5, 1930 17 Sheets-Sheet ll 136 3 256 if 1 g 375 INVENTOR Mimi/bald;

ATTORNEY JulylZ, 1932. v. LOMBARDI 1,866,945

KNITTING MACHINE Filed Aug. 5, 1950 17 Sheets-Sheet 12 g I INVENTOR Kit/(e11! Lombardi, BY

ATT RNEY My 12, 1932. v. LOMBARDI I 1,866,945

KNITTING MACHINE Filed Aug. 5, 1930 17 Sheets-Sheet l5 INVENTOR AT RNEY July 12, 1932. v, LOMBARD] 1,866,945

KNITTING MACHINE Filed Aug. 5, 1930 17 Sheets-Sheet 14 INV ENTOR Mfimfiwnli, M

ATT N EY July 12, 1932.

v. LOMBARDI 1,866,945

17 Sheets-Sheet 15 July 12, 1932. v. LOMBARDI 1,366,945

KNITTING MACHINE Filed Aug. 5, 1950 17 Sheets-Sheet l6 INVENTOR WZMM July 12, 193 2. A v. LOMBARDI v KNiTTING MACHINE Filed Aug. 5, 1930 17 Sheets-Sheet 17 I ummmulumwnmmMMME @111 1 M A'ITNEY T Patented July 12, 1932 I VINCENT LOMBARDI, F BROOKLYNyNEW YORK 7- KNITTING MACHINE Application filed August 5, 1930. Serial No. 473312.

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

An object of the invention is to provide a 6 knitting machine whereby a large number of varied pattern effects may be readily and tfecgnomically incorporated into a knitted a no.

In its more specific aspects, the invention 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 eflicient operation.

Another object is to provide an improved pattern control mechanism capable of being operated by a simpler type of pattern-determining medium, such as a perforated strip of paper, than has heretofore been employed and in which for example a change in the characteristics of the said, medium is required only when a change is desired in the said mechanism.

Still another object is to provide improved apparatus for wiping out the pattern in any desiredpart of the fabric to be knitted,

which pattern would otherwise be incorporated therein under the control of the pattern-determining medium.

The invention accordingly comprises the features of construction, combination of elements and arrangement of parts, which will be exemplified in the constructions hereinafter set forth and the scope of the application of which will be indicated in the claims.

For a fuller understanding of the nature and objects of the invention reference should be had to the following detailed description taken in connection with the accompanying 53 drawings, in which:

. mg cams and used as a knitted.

Fig; 1 is a top view of a machine embodying the invention;

Figs. 2, 4 and 6 when placed side by side represent in schematic form a portion of the needle-lay-out along with the controlling cams, pattern-controlling mechanism and means for wiping out the pattern;

Fig. 3 is a schematic representation of the pattern iping out mechanism which is ihown ope ting on the needle jacks of Fig. 5 is a schematic representation of the pattern controlling drum and associated apparatus which is shown operating on the needle jacks of Fig. 3;

Fig. 7 is an enlarged sectional view of the pattern control mechanism for determining the pattern for any desired portion of the fabric to be knitted.

Fig. 8 is a top view of the control drum of Fig. 7;

Fig. 9 represents a drum cylinder carrypart of the mechanism of Fig. 7;

Fig. 10 is a schematic lay-out of the cams on the cylinder of Fig. 9;

Fig. 11 is an enlarged sectional view of the mechanism for wipin out the pattern in any desired portion o the fabric to be- Fig. .12 is a cross sectional view of-the control drum of Fig. 11; 7

Figs. 13 and 14 illustrate details of certain portions of the movable parts linking the drum of Fig. 12 to the cams for the needle jacks; 1

Figs. 15 and 16 illustrate other details of certain movable parts controlled by the drum of Fig. 12 and controlling cams for the needle 'acks 1 Figs. 17, 1s, 19, 20-, 20a, 21 and 22 represent sectional views of a needle and needle jack along with the various cams and controlling apparatus therefor;

Fig. 23 is a top view of an alternative form of a circular knitting machine embodying this invention; 7

Fig. 24 is an enlarged sectional view of the mechanism of Fig. 23 for wiping out the pat- 10c tern in any desired portion of the fabric to be knitted;

Fig. 25 illustrates details of certain portions of the movable parts linking the wiping out drum of Fig. 24 to the cams which control the needle jacks;

Fig. 26 illustrates certain of the pivoted levers associated with the drum of Fig. 24;

Fig. 27 illustrates the manner in which the drum of Fig. 24 may be stepped periodically in different parts of the machine;

Fig. 28 illustrates the manner in which the drum of Fig. 24 may be given one complete revolution in order to selectively set each slidable element thereon;

Fig. 29 represents another embodiment of this invention in which the wiping out mech anism is controlled by an endless chain instead of a perforated pattern;

Fig. 30 is a sectional view of certain portions of the machine of Fig. 29;

Fig. 31 represents one pattern effect that mag be produced by the present invention; an

Figs. 32 and 33 represent still another alternative pattern effect that may be incorf porated into the fabric.

Fig. 1 discloses a top view of a circular knitting machine of the cylinder type embodying the present invention. The machine is assumed to have four yarn feeds, 260, 261, 262, and 263 and four vertically disposed pattern drums 166, 243, 244, and 245, one for each yarn feed, are provided for determining the pattern effects to be incorporated in the fabric by the needles for each yarn. Each of these drums is mounted for movement around the needle cylinder 102 and rotating on its axis in response to this movement. These drums are an improvement upon and perform the same general functions as the pattern drums of my U. S. Patent No. 1,792,647 issued Feb. 17, 1931 and entitled Knitting machines. Each of these pattern drums, contains elements which in turn are given pattern determining actuations by apparatus controlled by a pattern sheet mounted on a drum 61. The machine of Fig. 1 also in- .cludes four horizontally disposed drums 137,

247, 246 and 248 for wiping out the pattern settings of the needle jacks for any portion ofthe fabric whenever such an action is desired. Thus pattern drum 166 may selectively set the needle jacks to give a particular pattern effect in one portion of the machine and the wiping out drum 137 which immediately follows may wipe out these pattern effects before the passage of the yarn carrier for which the pattern settings are made. It may be assumed by way of-example that the cylinder needles of the machine of Fig. 1 are divided into eight equal groups and that the pattern to be knitted is repeated at least eight times in the resulting tubular fabric. These sections for convenience have been numbered follows each 1A, 2B, 3-A, 4-B, 5-A, 6 -B, 7A, and 8B. For reasons to be described later the needle jacks in the A sections are different from those in the B sections. Thus the pattern drum for each yarn feed may cause the same particular pattern effect to appear in all of the eight sections except in those sections where the pattern may have been wiped-out by the wiping out drum which each wiping out drum is obtained from a pattern sheet mounted on drum 250. Further details of the general plan of the machine of Fig. 1 willbe apparent after a description of certain subsequent figures has been given.

The apparatus for enabling the knitting of the needles to be automatically determined by the pattern medium such as a perforated paper pattern strip 60, will now be described particularly with reference to Fig. 7. The controlling apparatus immediately adjacent the pattern strip 60 is quite similar to the, apparatus disclosed in my U. S. Patent No. 1,792,647, to which reference is made. The pattern strip 60 is mounted on a rotatable drum 61 mounted on a stationary part of the machine and arranged by suitable apparatus to be given a step-by-step movement at proper intervals. Two sets of pivoted levers, 63, 64 are associated with the pattern sheet. The fingers 62 of the set of levers 63 are adapted to be periodically raised away and subsequently lowered to either contact with the pattern sheet or pass through perforations therein. A rotating cam 71 periodically lifts the arm 7 O, pivoted at its upper end, to cause the rod 69, to rotate each lever 64 a small distance in a clockwise direction, which will cause one end 72 of the lever to raise the fingers 62 away from the pattern. These fingers are normally biased by springs 68 inside the housing 67. If a finger 62 is resting at any particular time on top of the paper pattern the other end of lever 63 is against shoulder 66, but if a finger 62 should find a hole in the pattern the opposite end of that lever 63 would rest against shoulder 65. The lower end of each lever 64 is apertured through which a small hollow rod 81 passes, having an adjustable stop 7 5 on one end and an adjustable nut 74' on the pther end. A spring 73 tends to keep end 76 of the lever against the stop 75. A wire 77 passing through the tube 81 and fastened by a set screw in stop leads to a bell crank lever 78 pivoted at the point 79. The other arm of this bell crank lever 78 rests in a socket in the lower end of a vertical jack 80 which is located in an external slot of the stationary cylinder 82.

The upper end of each jack 80 has a cam projection 83 so that the jacks 80 may be periodically raised by a rotating cam 84. It will be apparent that after the passa e of cam 84 each jack 80 corresponding to a finger pattern drum. The setting of a raised position.

which found a perforationin the pattern sheet will remain elevated while those jacks corresponding to fingers finding no holes will be lowered again due to the action of springs 73.

.The pattern determining actuations of acks 80 are transferredto the needle jacks y a special mechanism 166 now to be de of each element 89 has a projection 90 whichis adapted at times to contact with the part 91 of one of the jacks 80.

A cam cylinder 92 is mounted on shaft 86 in a non-rotatable manner and the details thereof are disclosed more particularly in Fig. 9 to which reference is made. Several cams are mounted on the cylinder 92 which cooperate with projections 93 on the slidable elements to give desired actuations thereto. If we assume an element 89 with it projection 93 in its upper and inner position, having been pushed in by a jack 80 it will ride on top of cam 96 but will be lowered by cam 97 and then pushed outwardly by cam 98 so that it is left in its lowered and outer position until a change is desired, when the said change will be made by the pattern sheet 60. The said projection 93 has therefore been changed from an upper and inner position to its lower and outer position. On the other hand, if we assume an element 89 with its projection 93 in its lowered andinner position, the said element 89 will be further lowered by cam 96 and will not bc'aifected by cam 98 but will be raised by cam 94 and then pushed outwardly by cam to its upper and outer position. Once the slidable element 89 has been given a selective inner setting-by pattern sheet 60, the rotation of the sildable element around the cam cylinder 92 will cause the cams on cylinder 92 to raise those elements 89 that were previously in a lowered positon and will lower those that were previously in This means thatthe slidable elements once they have been selectively set and operated upon by cam cylinder 92 will continue to have that setting unt'l a different setting is desired, i. e.: the elements 89 do not have to be set for each revolution around the needle cylinder as long as no change in-the pattern is desired. For example if one projection 93 is in its upper and outer position because its corresponding finger 62 found a hole in pattern 60, it will remain in its upper position until itscorresponding finger 62 encounters another hole in the pattern (which may not occur until the cylinder 61 has been stepped several times), whereupon it will be pushed in by jack 80 and then changed to a lowered positionby cam cylinder 92. It will now remain in a lowered and outer position until its finger 62 encounters another hole later in the patv tern sheet 60 whereupon the projection 93 will be pushed in by its jack 80 and then changed to its upper position by cam cylinder.

The pattern sheet 60 is therefore of novel design in that a hole is inserted therein along a line parallel to its length only when a change in the knitting of a particular'needle is desired. Thus, for example the first hole in such a row under one finger 62 may mean that its needle will knit. This needle will continue to knit until a second hole appears in the 'pattern under said finger whereupon the said needle will interlock and continue to interlock until a third hole appears.

This

reduces considerably the number of holes required in a pattern sheet to produce a given pattern.

The manner in which the cams on cylinder 92 operate is illustrated schematically in Fig. 10. The projections 93 that are in their inward positions are shown as solid rectangles in Fig. 10, while the unfilled rectangles 93 represent projections 93 in their outer postions.

Each element 89 at its upper end has a projection 99 which is adapted to contact with a projection 100 on a needle ack 101 to push.

the needle jack inwardly into its slot in the needle cylinder 102 providing the said element 89 is in its raised position. If however any element 89 is in its lowered position it will not actuate its corresponding needle jack. The upper and lower positions of projections 99 are separated by a thin semi-annular plate 103 which insur s that at the t me each element 89 is adjacent the needle .jacks there will be no danger that some slidable elements 89 will be at an undesired height. This plate 103 does not rotate with the drums 87, 88 but is stationary in the designated position as it is carried with the shaft 86 around the needle cylinder 102.

The outer projections 104 on the slidable elements 89 may be used at times in connection with the setting of the elements 89 by the manually operated cams 105 and 106, see Figs. 7, 8, and 10. If cam 106 is screwed in to be in operative position, it will contact with butts 104 on all slidable elements 89 in an upper position so that all those projections 93 which before the actuation by cam 106were in their upper outer positions will be placed in their lower outer positions by the subsequent operation of came. 97 and 98. Those projections 93 which at the time of the placing of cum, 106 into operation were in their lower outer positions will of course remain there and those that happened to be in their lower inner positions

Images