US2006694A - Straight knitting machine - Google Patents

Description

July 2, 1935. w Er AL 2,006,694

STRAIGHT KNITTING MACHINE Original Filed Dec. 21, 1932 3 Sheets-Sheet l Ely WW. Kenneth Jiquy'e Char lea C. Jfigiejle Jae/m v $2 July 2, 1935. Howl E ET AL 2,006,694

STRAIGHT KNITTING MACHINE Original Filed Dec. 21, 1932 3 sheet s sheefi 2 Kenneth Jiuzie,

Char es CuKriele,

July 2, 1935. K, HOME E A 2,006,694 I STRAIGHT KNITTING MACHINE Original Filed Dec. 21, 1952 5 SheetsSheet 3 3mm. 3- W Jfiennei'h Jiqwigg Charles CLJfiyIeb Ze,

Patented July 2, 1935 v UNITED. STATES, PATENT OFFICE a Kenneth Howie and Charles C. Krieble, Norris town Pal, assignors to Wildman Mfg. (10., Norris- 1 town, Pa., a corporation of Pennsylvania Application December 21, 1932, semi No,aii4,8,29|) Y Renewed November 23, 1934 1 Claim. wits-12s) The invention relates to improvements in means '33 parallel with the rear stretch of the straight knitting machines and [concerns an lendflexible band. This driver has a pawl 3|a for less band for traversing yarn guide means back engagingfthe dog 34 on its under side to impart and forth along the needle row with means vfor back and forth movement to the endless flexible 5 givinga reciprocating movement to said band. band inthe direction of its length. Thepawl has 5 The invention also concerns means for contr'olinclined shoulders 3 lb to engage either one of the ling the length of -movement of the endless flexinclined shoulders 34d on the dog 34 according ible band for narrowing. t tov the direction, right or left, thatthe driver is The invention consists in the features .here- .mo'ving. When the stud 35 on the dog 34 comes inafter described. against t e S op Rs or Ls, the endless flexible In the drawings: band is arrested, and thus the length of the stroke Figure 1 is adiagrammatic plan view of the of the yarn guide is determinedaccordi'ng to the invention. vwidth of fabric desired. v

Fig. 2.is a diagrammatic sectional view efthe When the endless band is thus arrested the l5 invention r I I j v driver can proceed to the end of its stroke. For

Fig. 3 is a view of details relating to the. rethis purpose the pawl 3|a will yield or recede ciprocatlng. driver for the band. downwardly because the inclined shoulders 3| b Fig. 4 shows the yarn guide. and 3ld'will have a camming action and thus the Fig. 5 is a detail view of the driver for the .pawl will be pushed down as the driver 3| conenmess b d, tinues its .stroke. This recession downwardly 20 In these drawings the straight row of needles 0f t pawl is C u ed by e paw '11 Passing the is shown at la mounted in a needle bar l which arrested dog 34 in C nta t with either one of the is operated to cooperate with the sinkers and inclines 340 on its lower edge. The p wl h 8 dividers as in well known practice. At 26 is m which s rn upon by sprin p ss d deshown a flexible endless d 1; up on edge th tents 3| 0 which restrains its free movement by 25 its front stretch adjacent and parallel with the nal Contact. needle row and its rear stretch substantially par- This D W is restored to s ppe P t on allel with its front stretch, and with which a refor picking'ilp the dog 0 s next Stroke, y 8- ciprocating driver connects to give the band its restoring s de 3 7' carried by the driver block 3| back and forth movement to traverse the yarn and Operated in e fi al part of the stroke of guide along the needle row, it being noted that Said driver in either direction y coming a ns the side face of the band is substantially parallel a fixed Stop there being O Of these fi StOPS to the plane in which the needles lie. Specificalat each d of t est oke of the d iv e ly stated, this band causes the yarn guide t t troller slide 3 I7 projects from the driver block at 35 erse the needle row by the circumstance th t; both the right and left sides thereof, so that on 35 the yam guide consisting of a t t is mounted either stroke one end or the other of said condireeuy on t band h yarn passes through troller slide will contact with one of the stops C t t and is t delivered t t needles. and the slide will be arrested while the driver con- The band is guided by rollers 21 where it tu tinues a slight additional distance in completing from one stretch to the other, and these curved its stroke, and thus the lower end of the stem of 40 portions are further guided by curved blocks 28, h pawl which is Cam Shaped Will rid up either and by guide members gg The flexible endless one or the other of the inclined walls of the V band is of metal. It carries on its rear stretch Shaped notch. us restoring the pawl to its a dog 34. This dog has a stud 35 projecting from upper operatlve position for again in the its upper edge, which comes against a stop Rs dog 45 to determine the right hand selvage, or against The pawl restoring slide is under frictional rea stop Lg which determines t left hand straint of suitable springs located for instance a vage of the fabric.

The steps are mounted on t brackets or The driver block 3| is operated back and forth porting bl k 36 one on h m k These along the guide rails 33 by an endless band 30, blocks are adjustable automatically, as will be ing around uide Wheels such as at 30a arpointed out hereinafter, when narrowing or fashranged a pp site des of the machine. The ioning of the fabric is to be done, driver block 3| is clamped to this band by screws The endless flexible band 26 is reciprocated 32. The endless drive band 30 is clamped to an by a driver 3| which reciprocates along guide arm of slur cock carrier 31, guided on the fixed 55 one of which is shown at amounted on a screw drives gearing connected to the said spiral or screw member. This oscillating rack or segment is indicated generally at ile'and th'egearing' at tures like those disclosed in application of the ab, a ua Fig. 1.

For narrowing the fabricthe selvage and La must be adjusted towards each other. or g in other words, towards .the center of'the machine. For-. this purpose the brackets", which carry the said selvage stops, are" engaged by ascrew shaft 0 having the'thread at one end'reversed in direction in respect to the direction of the thread at the'other end of the said shaft.

This shaft is operated by band "e from a lever (not shown) operated; by a cam on the main cam shaft of the machine. The band operates a drum 43d carrying a pawl 43 engaging'a ratchet on stub shaft 43c, whichis g red to the screw shaft 43. The screw shaft in addition to being 99 able as Just described by automatic mechanism [for 'setting the stops Rs and L1 inwardly towards crank 1, whereby thestops may be returned outward away from each other to position for ing the narrowings, is operable by handby a beginning a new fabric. g

The narrowing points 44 are mounted on blocks,

shaft b 'by which said blocks are automatically adjusted towards the center of the machine in performing the narrowing operations. This screw shaft is operated automatically through pawl and ratchet mechanism and gearing, which comprises pinion on the'shaft b gear d on the center of the machine, step by step for makstubshaft 2, provided with a spring drum ll operated by a steel band e.- The drum carries a pawl I, which engages a ratchet a fixed on-the stub shaft. The band He is operated fromthemaincamshaftthroughthesamecam.

thereon, and the same lever which operates the band first mentioned. I Y

The narrowing points are carried by a narrowing frame 41 having movement up and down.in the operation of transferring stitches from needle to needle.

The machine above described embodies fea- United States filed by Kenneth Howie and Charles Krieble Feb. 4.1932, Ber. No. 590,942. Patent No. 1,982,991, in which some of the mechanism concerned herein is illustrated in greater detail.

The machine will produce fashioned fabrics in whichonlyone yarn is used.

.- We claim: r V

A one. feed run fashioned knitting machine comprising a straight row of' needles,only one yarn guide, only one endless flexible band. said band being of substantially flatform in cross more remote stretch of the band which lies opposite to the stretch first mentioned, automatically adjustable stop means engagin said remote stretch of the band for arresting said band vari-,

ably as to its lengths of stroke, said driving means comprising a membercarryi'nga pawl, means on the said driving member for setting the pawl inv position to drive the endless band, and stationary contact means at each end of the stroke of the driving member for operating said pawl setting means. A

KENNETH HOWIE. CHARLES C. KRIEBLE.

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