US1590294A - Knitting machine - Google Patents

Description

June 29 1926.

' C. C. KRIEBLE KNITTING MACHINE Original Filed Sept. 19. 1922 3 Sheets-Sheet 1 C/zarlezs ffrz'eZZe M. kw; g W

June 29 1926.

c. c. KRIEBLE KNITTING MACHINE Dliflinil Filed pt. 19, 1922 3 sheets -sheet 2 gwuanlot Mar/as CfirzeZle O. D m, WMWMV%Z( June 29 1926.

C. C. KRIEBLE KNITTING MACHINE Original Filed Sept. 19, 1922 3 ShGBtS-ShOOt 3 UDDn-DODDDn-UDWDDDDD Patented June 29, 1926.

UNETED STTES V 1,590,294 PATENT OFFICE.

CHARLES; C. KRIEBLE, 0F NORRISTOW'N, PENNSYLVANIA, ASS IGNOR TO WILDMIAN MFG. (30., OF N ORRISTOW'N, PENNSYLVANIA, A CQRPORATION OF PENNSYLVANIA.

KNITTING- MACHINE.

Original application filed September 19, 1922, Serial No. 589,094. Divided and this July 18, 1924. Serial No. 726,793.

The present specification is a division of that of application for Letters Patent of the United States filed Sept. 19, 1922, Serial No. 589,094: now Patent No. 1,525,610, Feb. 10, 1925.

In the accompanying drawings Figure 1 is a side elevation ofthe pattern mechanism in connection with the knitting machine.

Fig. 2 is a lan view.

Fig. 3 is a p an view of part of the pattern mechanism.

Figs. 4: to are views of details.

Fig. 11 is a side view of one of the pull 7 bars, the slide to which it is connected and the connection between the slide and the rock shaft.

Connections I leading from the pattern drum to the parts of the knitting machine to be controlled involve pull bars 27 and 27* in groups of four pivotally connected re-- spectively to slides and 25 and other pull bars 67, 76, 80, 80, also pivotally connected to appropriate slide bars, in turn connected with the parts of the'knitting machine which are to be controlled.

Each of the pull barsrests upon pins 28 mounted in a carrier bar 29, so as to slide freely therein, in a substantially vertical direction. This carrier bar has movement up and. down in relation to the perforated pattern strip or jacquard device which in the present case consists ofan endless sheet of flexible material, as paper 30, passing over a pattern drum 30 referred to more fully hereinafter. The up and down movement of the pin carrying bar is derived from a cam 31 arranged coaxially with the needle cylinder and adapted to operate against a roller 32 carried by a slide 33 which is guided in the bracket 34. This slide bears against an eccentric pin 35 carried by a rocking arm 35 which is pivotally mounted at 36 and is connected with an arm 37 which has thereon the pin carrying bar 29. A spring 38 presses the arm down and the cam 31 through the connections described raises the pin carrying bar. .When the pin carrying bar is raised it engagesthe heads of the pins and holds them up. The jacquard strip is perforated and is moved step by step by the intermittent movement of the drum 30 which has teeth 3O, engaging marginal openings in the strip, Now when as will be described hereinafter.

application filed the pin carrying bar moves down, any pin which finds an'opening in the paper strip will pass therethrough, but any'pin which strikes an imperforate part of the strip will be held up despite the fact, as just stated, that the pin carrying bar has lowered. The pin which passes through the perforation in the paper strip willof course move down and thiswill allow the pull bar say 27,

Fig. 1, the pull bar 27which has fallen will i be pushed leftward and drawing upon the slide 25 will operate the arm 23, which engages its notch 25, and turn the shaft 23, thus swinging the arm 22 towards the right and moving the plunger carrier 15 rightward to bring the plunger 14 under the proper push bar. 13 for operating the corresponding yarn feed finger into operative position, when the lifter plate 16 moves upwardly. The train of connections just described will be returned to normal position, as will be hereinafter described. The pull bar which has been operated, as just described, will be elevated to normal position by the rise of the pin carrying bar 29 which will elevate the pin upon which said pull bar rests, and when raised to this normal position the said pull bar will be out of range of movement of the oscillating bar 39, ready for. another action such as just described, when the pattern strip calls for it. As before stated, bars 27 connected with j the shoulders 27 of these pull bars are in line with each other, see Fig. 2, but it will be noticed'that the oscillating bar- 39 has a series of shoulders 39 in stepped relation, and consequently at different distances from the shoulders 27 of the pull bars 27, so that the slide 25 will be moved diflerentdistances, according to which one of the four pull bars is lowered into range of the osoillating bar 39. The bar 39 oscillates always through the same length of are, it being mounted on a frame39 pivoted at 39 to the bracket 34, Fig. 1, and it is operated If the first one of the pull bars 27 (counting from the bottom'of-Figy2) is the one lowered, then the oscillating bar 39 will move this the maximum distance, because its shoulders 27 stands nearest to the edge of the bar 39. This pull bar will 1 therefore cause. a full rightward movement of the plunger carrier 15 and the plunger 14 will select the right hand push bar 13 to throw the right hand yarn finger down to operative position. If the second .pull bar :27. is lowered, there will be some lost motion of the oscillating bar 34 take place, so that the plunger carrier 15 will not be moved so far to the right as in the first instance, and consequently the plunger 14 will select and operate the second yarn finger (counting from the right of thegroup A, Fig. 2) and so on as to the other .pull bars 27, each in order fixed thereon froma slide 25 which is like being operated to a lesser degree than the preceding one, owing to the stepped formation 39 in relation to the shoulders '27 of the pull bars.

The train of mechanism just described has relation to the group of yarn fingers A. A similaroperation takes placein relation to the group of yarn fingers indicated at B, Fig. 2. There is a plunger carrier 15 for this side of the machine with rod 21, lever 22%, and a shaft .23 which latter is arranged axially in line with the shaft section 23 above mentioned, and this shaftsection 23 is operated through an .arm .25

the slide 25 and has four pull bars 27 pivoted thereto, to be controlled by certain of the pins 28 and operated severally by the same oscillating bar 3.9 when the pins find openings in the jacquard strip through which to pass when the carrier bar 29 is lowered; 7 i i It will be noted that the fingers of group A may be selected in any prescribed order desired, the variations in the. order of selection depending upon the disposition. of the holes in the jacquard strip, and this is true also of the group of fingerssB and the order of selection of one group may be entirely differentfrom that of the other group. In order words, the two groups are entirely independent of each other'in the sense that the order of. selection ofthe fingers of one group may vary indefinitely in. respect to the I other group, though the selection in respect to the two groups is 'derivedfrom-the same source, i. e., the'jacquarol strip.

The push plate 39 is operated by a spring 40 in one direction, this spring being connected to the swinging frame 39", and in the other direction .the operation is due to a cam 141. operating against a roll .42 mountedon sli le' whichabe rs g n an adjusting screw-.43 carried by the frame. The-eccentric pin 35 of'the lever 35 may be ur ed for justment of its contacting tion with: the slide .313 by a screw driver, the head. ,Qf tl is..-p i i heingk rzted, and.

adjusted it is held by a set screw 35". The rocking of the frame 39 is utilized for operating the pattern drum step by step, for which purpose the frame carries a pawl 44-to engage the teeth 45 of the drum.

This pattern drum is substantially like that pins 28 pass when an opening in the jacquard strip aligns therewith and when the pin is lowered by the bar 29. v In order to return the carrier slide 15 to normal position at the left'of Fig. 2 after being operated to the'right (it being observed that the pull bars 27 have only the advancing shoulder 27 but not a return shoulder, see Fig. 2) the lever 22 has a downward extension 22 connected by a rod 46 with an arm 47 on a vertical shaft 48 mounted in the fixed base of the machine, and this shaft carries an arm 50'fiXed thereto whichis in the path of a roller 51 on the shaft 52 forming a part of the rotary take-up mechanism. This mechanism'inay be of any suitable type and-needs no detail description herein.

The roll 51 travelling about the axis of the machine will hit the arm 50 and through the rock shaft 48 andthe connections just described the lever 22 will be returned to the normal position shown in Fig. 1,with the selector plunger 14 at the left of the series of push rods 13 and with the pull bars 27 restored'to'norma-l position. v

The pull bar 67 when lowered and operated by the push plate 39 draws upon a slide 65 and through lever'63' operates a pawl 62 to turn the ring 61 byengaging with its teeth. This ringhas cam surfaces 61, 61 for controlling the position of the stitch cam.

The pull bars 76 operated by the push plate 39 are pivotally" connected with slides 76 and'when "these are operated certain connections leading to the needle raising cams are operated for adjusting said cams.

The pull'bars 80, S0 of the pattern mechanism when operated by the push plate 39 operate slides 79, 79", which through certain connections control supplemental yarn feed. fingers.

The poll bars 76 have two shoulders as shown in Fig. 9 so that the pushplate 39 will-move these pul'lbars in both directions,

and this is 'true of the other pull bars 36X zontal plane, horizontally movable slides to which said pull bars are pivotally connected to move in vertical planes, connections operated by the horizontal movement of the slides, pins upon which the pull bars rest, means -for raising and lowering the pins to raise and lower the pivoted pull bars, said means having a slip joint engagement with the pins a perforated pattern band for demove in vertical planes, connections operated by the horizontal movement of the slides, pins upon which the pull bars rest,-means for raising and lowering the pins to raise and lower the pivoted pull bars, said means having a slip joint engagement with the pins, a perforated pattern band for determining the up or down position of the pins, means for operating the pattern band, a reoiprocating push bar movable substantially horizontally for operating the pull bars when the same are moved vertically into line therewith, and means for operating the push bar, certain of the pull bars being connected with the same slide, and said push bar and said certain pull bars having shoulders which are differentially spaced apart, substantially as described.

In testimony whereof I aflix my signature.

CHARLES C. 'KRIEBLE.

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