US806921A - Knitting-machine. - Google Patents

Knitting-machine. Download PDF

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Publication number
US806921A
US806921A US409500A US1900004095A US806921A US 806921 A US806921 A US 806921A US 409500 A US409500 A US 409500A US 1900004095 A US1900004095 A US 1900004095A US 806921 A US806921 A US 806921A
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cam
lever
cylinder
knitting
machine
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US409500A
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James E Rowe
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E JENCKES MANUFACTURING Co
JENCKES Manufacturing Co E
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JENCKES Manufacturing Co E
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    • D—TEXTILES; PAPER
    • D04—BRAIDING; LACE-MAKING; KNITTING; TRIMMINGS; NON-WOVEN FABRICS
    • D04B—KNITTING
    • D04B9/00—Circular knitting machines with independently-movable needles
    • D04B9/02—Circular knitting machines with independently-movable needles with one set of needles
    • D04B9/025—Circular knitting machines with independently-movable needles with one set of needles with stitch-length regulation

Definitions

  • FIG. 2 is a diagrammatic representation of FIG. 1
  • FIG. 4- is a diagrammatic representation of FIG. 4-
  • FIG. 5 is a diagrammatic representation of FIG. 5.
  • Knitting-Machines Be it known that I, JAMES E. ROWE, of Pawtucket, county of Buffalo, and State of Rhode Island, have invented certain new and useful Improvements in Knitting-Machines; and I do hereby declare the following specification, taken in connection with the drawings forming a part of the same, to be a full, clear, and eXact description thereof.
  • the present invention relates to that class of rotary knitting-machines used for knitting stockings, in which the needles are mounted in a needle-cylinder and are acted upon by cams carried by a cam-cylinder, one of said cylinders being rotated during the knitting of the foot and leg of the stocking and being given an oscillating movement during the knitting of the toe and heel of the stocking.
  • the primary object of the invention is to provide a machine which shall be simple and inexpensive in construction and efiicient in action, and this is effected by the employment of the features and combinations hereinafter described, and particularly set forth in the claims.
  • Figure 1 represents an elevation of the leftside of the machine.
  • Fig. 2 is an elevation of the right side of the machine.
  • Fig. 3 is a vertical sectional view through the knitting-head and clutch-shaft.
  • Fig. 4 is avertical sectional view through the tails of the stop mechanism.
  • Fig. 15 is a plan view of the extra-thread mechanism, and
  • Figs. 16 to 20 are details of the same.
  • the machine embodies a needlecylinder, a cam -cylinder, mechanism for changing the speed of the machine, mechanism for changing the motion of the cam-cylinder from rotary to reciprocating, and vice versa, mechanism for controlling the devices which throw the instep-needles out of action and effect the narrowing and widening on the toe and heel, and mechanism for raising .and lowering the needle-cylinder for changing the length of the stitch.
  • Mechanism is also pro' vided for introducing an extra thread at the heel and toe and also mechanism for stopping the machine when knitting half-hose.
  • the needles 1, Fig. 3 are mounted in grooves in the needle-cylinder 2 and are provided with butts 3, which are acted upon by cams mounted on the inside of the cam-cylinder 4 in the usual manner.
  • the cam-cylinder is provided with a flange 5, which is held in a recess in the base-plate 6 by a ring 7.
  • a ring 8 is secured to the upper end of the needle-cylinder and is grooved to receive the sinkers 9, which are operated by the sinker cam-ring 10in the usual manner.
  • the needle-cylinder is removably supported by a cup-ring 11, provided with an inwardlyprojecting flange 12, carrying screws 13, upon the heads of which the cam-cylinder rests.
  • a spring-pin 14 (see Fig. 7) is provided for engaging a recess in the lower end of the needlecylinder, and thus positioning said cylinder in the cup.
  • the cup-ring is split, so that it may be contracted upon the cylinder.
  • the cylinder When in position in the cup, the cylinder is rigidly secured thereto by a clamping-rod 15, which may be operated by a handle 16 to tighten or loosen the cup-ring, and thus clamp or unclamp the needle-cylinder.
  • the cup-ring 11 rests upon an adjusting-ring l7 and is provided with a series of laterally-projecting lugs 18, which pass through slots 19 in the frame and prevent thecup-rings from turning, while allowing vertical movement thereof.
  • the ad justing-ring 17 and the cup-ring are mounted within a cylindrical casing 20, depending from the base-plate 6, and said adjusting-ring is supported on a series of roll 21, which are mounted on the inner surface of said casing and engage spiral cam-grooves 22 in the adjusting-ring.
  • the cup-ring is held firmly upon the adjusting-ring by springs 23, interposed between the lugs 18 and base-plate.
  • the adjusting-ring may be turned by a rod 24, whichprojects laterally from a ring 25, secured to the under side of said adjustingring.
  • the ring 25 may also carry a guard 26 for directing the knit fabric down past the motion-changing mechanism.
  • the cam-grooves 22, acting on the rolls 21, cause a vertical movement of the adjustingring. and a consequent vertical movement of the cup-ring and needle-cylinder, thus varying the length of the stitches drawn by the needles.
  • said cylinder and cup become, in efiect, a single piece during the knitting, and said cylinder and ring are firmly held from vertical movement independent of the adjusting-ring by the springs 23.
  • the cylinder is firmly held in position and still is capable of vertical adjustment and may be readily'rcmoved and replaced.
  • Motion is transmitted to the cam-cylinder 4 from a clutch-shaft 27 through a gear 28, secured-to the upper end of said shaft, which engages a gear '29, secured to said cylinder.
  • the clutch-shaft 27 is mounted in vertical bearings and has mounted thereon an oscillating pinion 30 and a rotating pinion 31.
  • a clutch 32 is keyed to slide on the shaft 27 between the pinions 30 and 31, and said shaft is given a. continuous rotary movement or an oscillating movement, according as the pinion is engaged by said clutch.
  • the oscillating pinion is located above the clutch and is held in position on the shaft 27 by a collar 33, secured to said pinion and having a flange 34, engaged by a plate 35, secured to the frame.
  • the rotary pinion 31 is provided with a hub 36, passing through a bearing 37 and held in place therein by a nut 38, screwed onto the lower end of said hub.
  • a hand-wheel 38 may be secured to the nut 38 or be formed integral therewith, by which the machine may be operated manually.
  • the pinion 31 is a spiral pinion and is driven continuously by a spiral gear 39, Fig. 2, secured to the end of the main shaft 40.
  • the oscillating pinion 30 is driven by a rack formed on abar 41, which is held in engagement with said pinion by the plate 35.
  • the bar 41 is provided with a transverse slot 42, which is engaged by a crank-pin 43 on the side of the gear 39, and the bar beyond said slot is guided between two rolls 44.
  • This construction furnishes a simple and compact mechanism for giving the cam-cylinder either a rotary or oscillating movement.
  • Afurther advantage arising from the use of spiral gears for giving the rotary movement to the clutch-shaft is that it enables the clutch and driving shafts to be so located that their axes do not intersect, and
  • the driving-shaft maybe more conveniently arranged to operate other mechanisms.
  • the clutch 32 may be shifted to change the motion of the cam-cylinder byany suitable mechanism and is preferably so shifted by a novelmechanism which embodies certain features of invention.
  • the mechanism for shifting the clutch embodies a continuously-rotating cam and connections between the same and the clutch, the parts being so constructed and arranged that by effecting a relative movement between the cam and the parts engaged thereby the cam may be caused to shift the clutch in either direction.
  • the relative movement between the cam and connections is preferably effected by shifting the cam on its shaft, although this manner of effecting the movement is not essential to the broad scope of the invention. 'In the drawings this feature of the invention is shown in its preferred form, Figsf3, 4, 6, and 7.
  • the clutch 32 is provided with an annular groove which is engaged by an arm 45, secured to a vertically-sliding rod 46, mounted in the frame.
  • the rod 46 is connected with the front end of a lever 47, pivoted on astud 48, projecting from the frame, the rear end of said lever being provided with two arms 49 and 50, which are arranged in different vertical planes and extend upon opposite sides of the shaft 40, the arm 49 being above the shaft and the arm 50 below the shaft.
  • a cam 51 is keyed to slide on the shaft 40 and is arranged to engage either the arm 49 or 50.
  • the cam 51 is normally held in the position shown in Fig. 4 by a spring 52, interposed be tween the hub of said cam and the hub of an eccentric, which is fixed to the shaft and will be hereinafter referred to.
  • a spring 52 interposed be tween the hub of said cam and the hub of an eccentric, which is fixed to the shaft and will be hereinafter referred to.
  • cam-cylinder will be reciprocated until the cam 51 is shifted back into its normal position on shaft 40, when it will again raise the arm 49 and shift the clutch into engagement with the rotary pinion.
  • the mechanism for shifting the cam is of course timed to shift the cam when it is in position to pass laterally above the arm 50 or below the arm 49, and the cam is preferably provided with two swells or engaging parts, as shown.
  • the cam is shifted against the tension of spring 52 by means of a lever 53, pivoted on a stud 54, Fig. 6, and
  • cam-disk 58 is operated at proper intervals to bring the cam under the end of lever 53, and thus shift the cam 51 laterally by devices which will be hereinafter described.
  • the instep-needlesare out of action being thrown out of action at the beginning of reciprocating knitting and thrown into action at the end of the reciprocating knitting.
  • the number of active needles are gradually decreased to narrow the fabric being knit, and during the last half of the reciprocating knitting the needles rendered inactive during the narrowing operation are gradually returned into action to effect the widening of the fabric.
  • the devices for throwing the instep-needles out of and into operation and the devices for effecting the narrowing and widening in the machine shown are similar to the devices shown and described in the patent to myself No.
  • the arm 59 strikes saidpin and is swung about itspivot to operate the devices on the cam-cylinder.
  • the first operation of the arm 59 causes the instep-needles to be thrown out of operation, the second operation of said arm throws the widening devices into operation, the third operation causes the instep-needles to bereturned and the widening devices to be thrown out, all as clearly described in said patent.
  • the pin 60 is operated at the proper times through an arm 62, secured to a shaft 63 and having its forward end connected with said pin.
  • a second arm 64 is secured to the shaft 63 and has its rear end arranged in the path of a series of cams 65, carried by the disk or drum, the arms 62, shaft 63, and arm 64'forming, in effect, a needle-controlling lever for operating the pin 60.
  • This pin togetherwith the devices operated thereby, form the mechanism in the machine shown for controlling the operation of the needles.
  • a gear 66 is secured to the end of the shaft 10 and is engaged by a pinion 67, formed on the hub of a pulley 68.
  • the pulley 68 is mounted to revolve on a stud 69, secured to the frame and carrying a loose pulley 70 outside the pulley 68.
  • a second loose pulley 71 is mounted to turn on the hub of pulley 68 inside said pulley.
  • a fast belt 72 runs overthe pulley 68 and drives the machine, a slow belt 73 at this time running idly over the pulley 71.
  • the fast belt is shifted onto the pulley 70 and the slow belt is shifted onto the pulley 68 and drives the machine at a reduced speed.
  • the belt which is on the pulley 68 at that time is shifted onto its loose pulley, so that each belt runs idly over its loose pulley.
  • This mechanism embodies two beltshifters arranged to be locked together, so that the speed of the machine may be changed by simultaneously shifting both belts and to be disconnected and moved independently of each other, so that the driving-belt may be shifted onto its loose pulley without shifting the idle belt from its loose pulley.
  • the preferred form of this mechanism is as follows: The belt 72 passes through the fork 7 1 of a belt-shifter 75, and the belt 71 passes through the fork 76 of a shifter 77, said shifters being in the form of slides or bars mounted side by side in the frame, Fig. 8.
  • a spring 79 connectsthe two shifters and tends to throw the shifter to the left and shifter 77 to the right.
  • the means shown for connecting the two shifters so that they will move together is in the form of a latch 80, pivoted at 81 to the shifter 75 and having a s'houlder'82 arranged to engage an abutment or shoulder on the shifter 7 7, formed by a pin 83, which projects through a slot 84 in shifter 75.
  • the spring7 9 is under tension and the two shifters are connected, so that they move together, and the forks 7 1 and 76 are so related that one of the belts 73 or 72 is upon the pulley 68 and the other upon its loose pulley.
  • a boss 86 on the shifter 77 forms'a stop for limiting the movement of said shifter toward the right.
  • any suitable mechanism may be employed to operate the belt-shifters; but it is preferred to operate said shifters in one direction by a spring and in the opposite direction by a cam, which acts to hold the shifters in position during reciprocating knitting or while the slow belt is on the pulley 68.
  • means are preferably provided for breaking the connections between the cam and shifters, so that the shifters may be moved to stop the machine even when the cam is in position to hold the slow belt on the driving-pulley.
  • the connected shifters are moved toward the right, Fig. 8, by a spring 87, connected to shifter 77 and to the frame, and are moved toward the left against the tension of spring 87 by a cam 88, Figs.
  • lever 89 carried by the cam-disk 58 and arranged to operate on the upper end of a lever 89, pivoted on the stud 54 and having its lower end connected with the shifter 77.
  • the end of lever 89 is therefore preferably connected to the shifter 77 by a latch 90, pivoted at 91 to the shifter 77 and having a shoulder 92 arranged to engage a pin 93 on the end of lever 89.
  • the latches and are preferably con nected by a pin 94, projecting from latch 80 through a slot 95 in latch 90, so that said latches may be simultaneously lifted to disconnect the shifters and break the connections with the operating-cam,
  • the latches in the construction shown are connected by a rod 96 with a frame 97, Figs. 5 and 11, pivoted on the hubof a pawl-carrier to be described, which in turn is pivoted on astud 98, secured in the frame, Fig. 4.
  • the frame 97 normally rests against a stop 99, Fig. 6, and is provided with a laterally-projecting rod 100, forming a handle by which said frame may be rocked to lift the latches and stop the machine.
  • the frame 97 may be automatically rocked to stop the machine by means of an arm or lever 101, loosely pivoted on a shaft 102, mounted in said frame, said arm extending forward and resting upon a pattern-chain 103, Figs. 11 and 13.
  • the arm 101 is provided with a shoulder 104 near its forward end, which is so arranged that when the arm is raised by a lug 105 on the pattern-chain I said shoulder is brought into the path of a reciprocating pawl 106, which draws said arm forward, thus rocking frame 97 and stopping the machine.
  • the machine may be started by a lever 107, pivoted at 108 and having a handle 109 at the front of the machineand having its rear end passing through slots 110 and 111 in the shifters 77 and 75, respectively.
  • This means preferably consists of a stop carried by the lever which controls the position of the clutch, which stop is arranged to prevent the movement of the rear end of the lever 107 toward the right when the clutch'is in engagement with the oscillating pinion.
  • This stop is formed by the end 112 of a slot formed in an arm 113, secured to the end of lever 53, through which slot the lever 107 passes, Fig. 4.
  • the sleeve 118 is provided with an arm or lever 121, the outer end of which is connected by a link 122 with a lever 123, pivoted at 124 to the frame and having its lower end connected with the rod 24 by a link 125.
  • the upper end of the lever 123 carries a screw 126, which engages the frame and forms an adjustable stop for determining the normal position of the adjusting-ring 17, and therefore the height of the cylinder and length of stitch.
  • the stop is held against the frame by the action of a spring 127, having one end connected to the link 122 and the other to the frame.
  • the cam 114 is formed on a ring 128, secured to the disk 58, which ring also carries the cams 65, already described, and on the edge of which the cam 88 is formed.
  • the end of the lever 115 during rotary knitting lies in. a recess 129 in the ring 128.
  • lever 115 rides on the ring 128, and the needle-cylinder is thus held elevated until the recess 129 is brought opposite the end of lever' 115, which occurs at the completion of the heel or toe.
  • the screw 120 By adjusting the screw 120 the amount of movement given to lever 115 by the cam 114 may be regulated and the length f stitch on the heel or toe thus regulated.
  • the cam or controller disk 58 which carries the cams for controlling the speed and motion changing mechanisms,the cams for controlling the operation of the needles, and the cam for controlling the length of the stitches on the toe or heel, is mounted on the stud 98 and is driven by the action of a reciprocating pawl 130,arranged to engage ratchet-teeth formed on said disk.
  • a reciprocating pawl 130 arranged to engage ratchet-teeth formed on said disk.
  • the disk is providedwith twelve'teeth, Fig. 12, every fourth one of which is a long tooth, forming a dwell on which the operating-pawl rides idly until the disk is advanced far enough to allow the pawl 130 to engage said tooth.
  • the disk is given this advance movement at the proper times by pins or projections 131, carried by the pattern-chain and arranged to engage abutments on the cam-disk, said disk having three such abutments corresponding to the number of long teeth or dwells thereon.
  • These abutments are preferably formed by arms or levers 132, pivoted to the disk 58 and arranged to engage a earn 133, which is mounted in a ring 134, secured to the stud.
  • The-cam 133 is so arranged that the arm 132, corresponding with the teeth on which the pawl 130 isworking, is held up in the path of the projection 131 on the chain 103.
  • the other arms are held against the ring 134 by springs 135, so that they cannot strike any succeeding projection 131 and feed the pattern-chain forward improperly.
  • the outward swing of the arms is limited by pins 136.
  • the cam 133 is formed on a plunger mounted in the ring 134 and supported by a spring 137.
  • the pattern-chain 103 passes over a sprocketwheel 138, mounted on a stud 98, and said chain is fed forward by a pawl 139, which engages a ratchetwheel 140, formed on said sprocket-wheel.
  • the pawl 139 is mounted in a pawl-carrier 141, mounted upon the stud 98.
  • the pawl-carrier is oscillated continuously by an eccentric 142, secured 'to the shaft 40 and carrying an eccentric-strap 143, the other end of which is pivoted to the lower end of the pawl-carrier, Fig. 11.
  • the pawl 139 is mounted to slide vertically in the pawl-carrier, being guided by a screw 144, working in a slot 145.
  • the pawl-carrier 141 also carries the pawls 106 and 130, which are mounted in a similar manner to pawl 139.
  • the means employed forthis purpose consists of a cam 148, Figs. 1, 4, and 10, formed on a disk or drum 149, which is secured to a ratchet-wheel 150.
  • the ratchet wheel and disk are mounted on a'bushing 151, which is screwed onto the end of stud 98, Fig. 4.
  • the cam 148 is arranged to act upon a roll 152, mounted on a stud 153, Fig. 10', which is secured to the lever 123, said cam as it is advanced acting to gradually swing said lever about its pivot and rotate the adjustingring 17 to raise the needle-cylinder.
  • the stud 153 is mounted in a slot 154 in the lever 123, Fig.
  • the stud is provided with a flange 156, which engages one side of the lever 123, and said stud is secured in position by a nut 157, which engages the opposite side of the lever.
  • the product of the machine is a continuous tube, which is afterward severed at points a number of courses from each toe, and in order to assist the operator in severing the tube at the proper points it is preferred to introduce at these points one or more courses of long stitches.
  • the preferred means for effecting this consists of a swell or projection 158 onthe machine begins to knit the toe.
  • the machine is provided with means for introducing a course of long stitches or a loose course as Any suitable means may be employed for this purpose without departing from the broad scope of this feature of invention.
  • the means which it is preferred to use for this purpose because of its simplicity and convenience of construction and operation consists of a cam 159, Fig. 1, which is arranged to act on the lever 123 during the course just preceding the beginning of the toe. This cam is preferably formed on the same disk with cams 148 and 158 and is located just beyond the cam 158.
  • the roll 152 rests in the depression between cams 158 and 159 for several courses, and then the cam 159 acts to again raise the needle-cylinder for the formation of the looping-course.
  • the fashioning-cam 148 is not used, and in this case the looping-courses are formed by a series of cams 159, formed on the drum 149 and separated from the cam 148 by a flange 160.
  • the roll 152 in this case is shifted on the stud 153 to engage the cams 159, as shown in Fig. 10.
  • the roll 152 is thus shifted by swinging the lever 123 away from cam 148 until the roll may be moved longitudinally on the stud 153 without striking the flange 160 and then allowing the lever to swing forward until the roll rests on the cam 159 or its movement is arrested by the screw 126.
  • the drum 149 may be operated at the proper times by any suitable mechanism, but is preferably operated by means of a pawl 161, mounted in the pawl-carrier 141 and arranged to engage the ratchet-wheel 150.
  • the pawl 161 is normally held out of engagement with the ratchet 150 by a guard 162, which underlies a pin 163 projecting from said pawl.
  • guard 162 is formed on an arm 163, secured.
  • An arm 164 is secured to the other end of the shaft 102 and carries a rod 164, which is adjustably secured therein by a set-screw 165.
  • the lower end of the rod 164 is arranged in the path of lugs 166 on the pattern-chain 103, so that when one of said lugs engages the rod 164 the shaft 102 is rocked, thus swinging arm 163 downward and allowing the pawl 161 -to engage ratchet150 and feed the same and the drum 149 forward.
  • the shaft 102 is held in its normal position by a spring 167, one end of which is secured to the frame and the other end to the arm 164,
  • the spring 167 also serves to hold the frame 97 in its normal position.
  • Means are also provided for supplying slack thread as the extra thread is carried along by the main thread, so that there may be no tension on the extra thread tending to hold it from passing to the needles with the main thread.
  • the devices for inserting and withdrawing the extra thread are supported by a bracket 169, secured to a rod 170 rising from the frame.
  • a rod 171, secured in the bracket 169, extends forward over the knitting-head and supports a frame or support 17 2 at its front end.
  • the extra thread 6 passes through a guide 178 to a guide 179 on the bracket 169, thence through guides 180, 181, and 182 to a thread-eye 183, formed in a V-shaped trough 184, from which it passes to the holder formed by the stationary jaw 185 and the movable jaw 186, where the leading end of the thread is held until said thread is to be inserted.
  • the guides .180 and 182 move forward, thus giving up slaok'thread, and the trough 184 moves forward, carrying the extra thread to the main thread and holding a considerable length of said thread against the main thread.
  • the guides and 182 move back, thus drawing thread from the bobbin, and trough .184 moves back, thus separating the extra thread from the main thread and bringing it between the jaws of the holder,
  • the trough 184 is carried by two arms 188 and 189, pivoted on the rod 171, and said trough is moved toward the main IQQ thread by a lever 190, pivoted on rod 171 and engaging an arm 191, projecting from the arm 188.
  • the arm 191 is held in engage ment with the lever 190 by a coiled spring 192, oneend of which is secured to a collar 193 and the other to the arm 189.
  • the lever 190 also carries a cam 194, arranged to engage the take-up arm 195 and hold said take-up out of operation during rotary knitting.
  • a projection 196 carried by said take-up, engages the clamp 174 and holds said clamp out of engagement with the thread.
  • the jaws 185 and 186 of the holder are supported on the support 172 just back of and to one side of the thread-guiding eye 175.
  • the movable jaw 186 is pivoted at 197 and is acted on by .a spring 198, which forms a friction-brake,
  • the movable jaw 186 is operated from the trough 184 through a link 199, connected at one end to an arm 200, projecting from the arm 189 and provided at its other end with a slot 201, which is engaged by a screw 202, carried by the jaw 86.
  • slot 201 engages screw 202 and holds the jaws closed.
  • the trough 184 is advanced, the slot 201 rides over the screw, and just as the trough completes its forward movement the upper end of slot 201 strikes screw 202 and opens the jaws.
  • the lever 190 may be operated at the proper time by any mechanism which is suitably In the construction shown this lever is operated from the lever 53, which controls the shifting of the clutch.
  • the lever 190 is connected, by means of a link 203, with one end of a lever 204, the lower end of which is pivoted on the hub of lever 53, Fig. 7.
  • the lever 204 is provided with an extension 205, which supports the guide-eyes 180 and 182, and with an arm 206, which carries a screw 207, arranged to be engaged by the upper end of lever 53.
  • lever 53 When the lever 53 is operated by cam 57, said lever acts against lever 204, forcing it to the right and swinging the trough 184 forward. This takes place just previous to the shifting of the clutch.
  • the roll 56 runs off of the end of the cam 57, and the lever 53 is rocked toward the left to cause the shifting of the clutch into engagement with the rotary pinion. This allows the lever 204 to swing to the left and the trough 184 to move back away from the main thread.
  • This means in the form shown consists of a finger 209, projecting from the lever 204 and arranged to ride on the cam 57 after the roll 56 has left said cam. This finger runs off of the end of the cam just after the instep-needles have begun to knit, and the main thread is therefore drawn taut between guides 173 and 175, when the extra thread is severed.
  • the general operation of the machine is as follows: During rotary knitting the parts .are in the position shown, with the exception that the belt-shifters are locked together and the fast belt is on the pulley 68.
  • one of the pins 131 on the pattern-chain strikes an arm 132 and starts the disk 58, bringing the long tooth into position to be engaged by the pawl 130.
  • the disk is now fed forward four teeth.
  • the cam 88 shifts the slow belt onto the pulley 68, thus reducing the speed of the machine.
  • the cam 57 shifts the cam 51, thus changing the motion of the cam-cylinder from rotary to reciprocating and throwing in the extra thread.
  • Cam 114 lifts .the needle-cylinder to lengthen the stitch, and one of the cams shifts the pin 60 to cause the instep-needles to be thrown out of operation.
  • the lever 64 runs ofi of the cam 65 and the pin 60 returns to normal position, and the fourth forward movement brings the second long tooth under the pawl 130.
  • the fourth movement carries cam 65 from under lever 64 and also brings the third long tooth under pawl 130.
  • the disk 58 now remains stationary until the heel or toe is completed, when it is again started and fed four steps forward.
  • the first and second movements are idle movements.
  • the third cam shifts the pin 60 to cause the widening devices to be thrown out of action and the instep-needles to be thrown into action
  • the roll 56 and finger 209 pass into recess 208 and off of the end of cam 57, thus causing the extra thread to be withdrawn and the clutch to be shifted from the oscillating to the rotary pinion
  • lever 115 passes into the recess 129, thus lowering the needle-cylinder to its normal position
  • the cam 65 moves from under lever 64, thus restoring pin 60 to its normal position.
  • the end of lever 89 passes off of the cam 88, thus shifting the fast belt onto pulley 68, and the first long tooth is again brought under the pawl 130.
  • the machine continues on rotary knitting until another heel or toe is to be formed, when the same cycle of operations is again performed.
  • the manner of forming the courses of long stitches for cutting off and for closing the toes, the manner of fashioning over the calf of the stocking in knitting ladies stockings, and the manner of stopping the machine when knitting half-hose have already been sufficiently described.
  • the needlecylinder In transferring tops to the needles of the -machine when knitting half-hose the needlecylinder is lowered by hand below its normal position and then returned to its normal position.
  • the mechanism for automatically operating the devices for regulating the height of the needle-cylinder is so connected with said devices that it may be disconnected therefrom and said devices operated by hand.
  • the link 125 is removably connected with the rod 24, preferably by forming an open-sided recess 210 therein, which fits over the rod 24, Fig. 1.
  • the link 125 When the needle-cylinder is to be lowered by hand, the link 125 is raised to disengage it from the rod 24, and said rod is swung forward until it strikes a stop 211, carried by said link, which stop is adjustable and determines the distance the needle-cylinder is lowered.
  • a shoulder 212 thereon moves up in front of a stop 213, which prevents backward movement of said link.
  • the rear side of the recess 210 extends below the front side and acts as a safety-stop to prevent the rod 24 from being moved back too far in returning the rod 24 to its normal position, in which it is engaged by the recess 210.
  • gear 28 secured thereto and engaging gear I 29, a pinion 30 on said shaft, a spiral pinion 31 on said shaft, a clutch 32 between said pinions, driving-shaft 40,,a spiral gear 39 thereon engaging pinion 31, a rack-bar 41 engaging pinion 30, a slot 42 therein, and a crank-pin 43 carried by gear 39 and engaging said slot.
  • a knitting-machine the combination with mechanism for changing the motion from rotary to reciprocating, of a driving-pulley, two idle pulleys, two belt-shifters independently movable, a starting-lever for operating either of said shifters to start the machine, and means for preventing the movement of said lever to carry the fast belt onto the driving-pulley when the machine is on reciprocating knitting.
  • a knitting-machine the combination with a motion-changing mechanism, and mechanism for controlling the operation of the needles, of a cam-disk, a cam on said disk for operating the motion-changing mechanism, a series of cams on said disk for operating the needle-controlling mechanism, a ratchet on said disk having a series of long teeth forming dwells corresponding in number to said series of cams, a pawl for engaging said ratchet, and means for starting said disk.

Description

No. 806,921. PATENTED DEC. 12, 1905.
J. E. ROWE.
KNITTING MACHINE.
APPLICATION FILED FEB.6, 1900.
9 SHEETS-SHEET 1.
Wz'inesses; Inven Zor zfiaw xzm J. E. ROWE.
PATBNTED DEC. 12, 1905.
KNITTING MACHINE.
APPLICATION FILED Hum, 1900.
FIG, 2,
9 SHEETS-SHBET 2.
lnvenior PATENTED DEC. 12, 1905.
J. E. ROWE. KNITTING MACHINE.
APPLIUATION FILED rmm. 1900.
9 SHEETS-SHEET 3.
- InvenZ0r: W65 .ByZMLi TV'iinesses No. 806,921. PATENTED DEC. 12, 1905,
J. E. ROWE.
KNITTING MACHINE.
APPLICATION FILED FEB. 5. 1900.
' 9 SHEETS-SHEET 4.
FIG. 4-,
v Inveniar Wiinesses No. 806,921. PATENTED DEC. 12, 1905. J. E. ROWE. KNITTING MACHINE.
APPLICATION TILED FEBJ"). 1900.
9 SHEETS-SHEET 5.
FIG. 5.
minesses rmivr No. 806,921. PATENTED DEC. 12, 1905. J. E. ROWE.
KNITTING MACHINE.
APPLICATION FILED PEB.5. 1900.
9 SHEETS-SHEET 6.
No. 806,921. PATENTED DEG.'12, 1905. J. E. ROWE.
KNITTING MACHINE.
APPLICATION FILED rmm. 1900.
9 SHEETS-SHEET -'luuinmm "nmm I08 IJIIIII Wit asses: nvenf r .-.!/me Uzi; 3%-"--- 41 ggmzzwn No. 806,921. I PATENTED DEC. 12, 1905,.
J. E. ROWE.
KNITTING MACHINE.
APPLICATION FILED FEB.5. 1900.
9 SHEETSSHEET 8.
PATENTEDDEC. 12, 1905-.
J. E. ROWEL,
KNITTING MACHINE.
APPLICATION FILED IBB.6. 1900.
9 SHEETS-SHEET 9.
Invenior B JMXM' flllarngy.
UNITED STATES.
PATENT OFFICE.
JAMES E. ROWE, OF PAWTUOKET, RHODE ISLAND, ASSIGNOR TO 'E. JENOKES MANUFACTURING COMPANY, OF PAWTUOKET, RHODE ISLAND, A CORPORATION OF RHODE ISLAND.
KNITTING-MACHINE.
Specification of Letters Patent.
Patented Dec. 12, 1905.
Application filed February 5, 1900. Serial No. $095.
To all whom it may concern.-
Be it known that I, JAMES E. ROWE, of Pawtucket, county of Providence, and State of Rhode Island, have invented certain new and useful Improvements in Knitting-Machines; and I do hereby declare the following specification, taken in connection with the drawings forming a part of the same, to be a full, clear, and eXact description thereof.
The present invention relates to that class of rotary knitting-machines used for knitting stockings, in which the needles are mounted in a needle-cylinder and are acted upon by cams carried by a cam-cylinder, one of said cylinders being rotated during the knitting of the foot and leg of the stocking and being given an oscillating movement during the knitting of the toe and heel of the stocking.
The various features of the invention are preferably embodied in a machine in which all the operations are automatically effected, although they are not limited in their application to such a machine.
The primary object of the invention is to provide a machine which shall be simple and inexpensive in construction and efiicient in action, and this is effected by the employment of the features and combinations hereinafter described, and particularly set forth in the claims.
In the accompanying drawings all the features and combinations comprising the invention are embodied in their preferred forms in an automatic knitting-machine for knitting stockings or half-hose.
In said drawings, Figure 1 represents an elevation of the leftside of the machine. Fig. 2 is an elevation of the right side of the machine. Fig. 3 is a vertical sectional view through the knitting-head and clutch-shaft.
Fig. 4 is avertical sectional view through the tails of the stop mechanism. Fig. 15 is a plan view of the extra-thread mechanism, and
Figs. 16 to 20 are details of the same.
In general the machine embodies a needlecylinder, a cam -cylinder, mechanism for changing the speed of the machine, mechanism for changing the motion of the cam-cylinder from rotary to reciprocating, and vice versa, mechanism for controlling the devices which throw the instep-needles out of action and effect the narrowing and widening on the toe and heel, and mechanism for raising .and lowering the needle-cylinder for changing the length of the stitch. Mechanism is also pro' vided for introducing an extra thread at the heel and toe and also mechanism for stopping the machine when knitting half-hose.
Referring to the drawings in detail, the needles 1, Fig. 3, are mounted in grooves in the needle-cylinder 2 and are provided with butts 3, which are acted upon by cams mounted on the inside of the cam-cylinder 4 in the usual manner. The cam-cylinder is provided with a flange 5, which is held in a recess in the base-plate 6 by a ring 7. A ring 8 is secured to the upper end of the needle-cylinder and is grooved to receive the sinkers 9, which are operated by the sinker cam-ring 10in the usual manner.
The needle-cylinder is removably supported by a cup-ring 11, provided with an inwardlyprojecting flange 12, carrying screws 13, upon the heads of which the cam-cylinder rests. A spring-pin 14 (see Fig. 7) is provided for engaging a recess in the lower end of the needlecylinder, and thus positioning said cylinder in the cup. The cup-ring is split, so that it may be contracted upon the cylinder. When in position in the cup, the cylinder is rigidly secured thereto by a clamping-rod 15, which may be operated by a handle 16 to tighten or loosen the cup-ring, and thus clamp or unclamp the needle-cylinder. The cup-ring 11 rests upon an adjusting-ring l7 and is provided with a series of laterally-projecting lugs 18, which pass through slots 19 in the frame and prevent thecup-rings from turning, while allowing vertical movement thereof. The ad justing-ring 17 and the cup-ring are mounted within a cylindrical casing 20, depending from the base-plate 6, and said adjusting-ring is supported on a series of roll 21, which are mounted on the inner surface of said casing and engage spiral cam-grooves 22 in the adjusting-ring. The cup-ring is held firmly upon the adjusting-ring by springs 23, interposed between the lugs 18 and base-plate. The adjusting-ring may be turned by a rod 24, whichprojects laterally from a ring 25, secured to the under side of said adjustingring. The ring 25 may also carry a guard 26 for directing the knit fabric down past the motion-changing mechanism. When the rod 24 is turned either by hand or automatically, the cam-grooves 22, acting on the rolls 21, cause a vertical movement of the adjustingring. and a consequent vertical movement of the cup-ring and needle-cylinder, thus varying the length of the stitches drawn by the needles. By clamping the needle-cylinder to the cup-ring said cylinder and cup become, in efiect, a single piece during the knitting, and said cylinder and ring are firmly held from vertical movement independent of the adjusting-ring by the springs 23. Thus the cylinder is firmly held in position and still is capable of vertical adjustment and may be readily'rcmoved and replaced. These means for supporting the needle-cylinder embody features of invention which will be more particularly set forth in the claims.
Motion is transmitted to the cam-cylinder 4 from a clutch-shaft 27 through a gear 28, secured-to the upper end of said shaft, which engages a gear '29, secured to said cylinder. The clutch-shaft 27 is mounted in vertical bearings and has mounted thereon an oscillating pinion 30 and a rotating pinion 31. A clutch 32 is keyed to slide on the shaft 27 between the pinions 30 and 31, and said shaft is given a. continuous rotary movement or an oscillating movement, according as the pinion is engaged by said clutch. The oscillating pinion is located above the clutch and is held in position on the shaft 27 by a collar 33, secured to said pinion and having a flange 34, engaged by a plate 35, secured to the frame. The rotary pinion 31 is provided with a hub 36, passing through a bearing 37 and held in place therein by a nut 38, screwed onto the lower end of said hub. A hand-wheel 38 may be secured to the nut 38 or be formed integral therewith, by which the machine may be operated manually. The pinion 31 is a spiral pinion and is driven continuously by a spiral gear 39, Fig. 2, secured to the end of the main shaft 40. The oscillating pinion 30 is driven by a rack formed on abar 41, which is held in engagement with said pinion by the plate 35. The bar 41 is provided with a transverse slot 42, which is engaged by a crank-pin 43 on the side of the gear 39, and the bar beyond said slot is guided between two rolls 44. This construction furnishes a simple and compact mechanism for giving the cam-cylinder either a rotary or oscillating movement. Afurther advantage arising from the use of spiral gears for giving the rotary movement to the clutch-shaft is that it enables the clutch and driving shafts to be so located that their axes do not intersect, and
thus the driving-shaft maybe more conveniently arranged to operate other mechanisms.
The clutch 32 may be shifted to change the motion of the cam-cylinder byany suitable mechanism and is preferably so shifted by a novelmechanism which embodies certain features of invention. The mechanism for shifting the clutch embodies a continuously-rotating cam and connections between the same and the clutch, the parts being so constructed and arranged that by effecting a relative movement between the cam and the parts engaged thereby the cam may be caused to shift the clutch in either direction. The relative movement between the cam and connections is preferably effected by shifting the cam on its shaft, although this manner of effecting the movement is not essential to the broad scope of the invention. 'In the drawings this feature of the invention is shown in its preferred form, Figsf3, 4, 6, and 7. As shown, the clutch 32 is provided with an annular groove which is engaged by an arm 45, secured to a vertically-sliding rod 46, mounted in the frame. The rod 46 is connected with the front end of a lever 47, pivoted on astud 48, projecting from the frame, the rear end of said lever being provided with two arms 49 and 50, which are arranged in different vertical planes and extend upon opposite sides of the shaft 40, the arm 49 being above the shaft and the arm 50 below the shaft. A cam 51 is keyed to slide on the shaft 40 and is arranged to engage either the arm 49 or 50.
The cam 51 is normally held in the position shown in Fig. 4 by a spring 52, interposed be tween the hub of said cam and the hub of an eccentric, which is fixed to the shaft and will be hereinafter referred to. When the cam is in this position, the rear end of lever 47 is raised and the clutch is in engagement with the pinion 31, which drives the shaft 27 and the cam-cylinder with a continuous rotary motion. When the motion of the cam-cylinder'is to be changed from rotary to reciprocating, the cam 51 is moved to the left, Fig. 4, to bring said cam above the arm 50, when said arm is depressed, thus raising the front end of lever 47 and shifting clutch 32 from pinion 31 into engagement with pinion 30. Now the cam-cylinder will be reciprocated until the cam 51 is shifted back into its normal position on shaft 40, when it will again raise the arm 49 and shift the clutch into engagement with the rotary pinion. The mechanism for shifting the cam is of course timed to shift the cam when it is in position to pass laterally above the arm 50 or below the arm 49, and the cam is preferably provided with two swells or engaging parts, as shown. In the construction shown the cam is shifted against the tension of spring 52 by means of a lever 53, pivoted on a stud 54, Fig. 6, and
IIO
to be acted upon by a cam 57, formed on a cam-disk 58. The cam-disk is operated at proper intervals to bring the cam under the end of lever 53, and thus shift the cam 51 laterally by devices which will be hereinafter described.
During the reciprocating motion of the cam-cylinder or while the toe or heel of a stocking is being knit about one-half the needlesthat is, the instep-needlesare out of action, being thrown out of action at the beginning of reciprocating knitting and thrown into action at the end of the reciprocating knitting. During the first half of the reciprocating knitting the number of active needles are gradually decreased to narrow the fabric being knit, and during the last half of the reciprocating knitting the needles rendered inactive during the narrowing operation are gradually returned into action to effect the widening of the fabric. The devices for throwing the instep-needles out of and into operation and the devices for effecting the narrowing and widening in the machine shown are similar to the devices shown and described in the patent to myself No. 570,059, granted October 27, 1896, and as in said patent these devices are controlled by cams on a stud carried by the cam-cylinder, said cams being operated by a pawl-carrying arm on said stud. This pawl-carrying arm is indicated at 59, Fig. 2, and reference may be had to the said patent for a full description of the devices operated by the movements of the pawl-carrying arm. In the present construction the arm 59 is operated by striking a pin 60, mounted in the frame and arranged to be brought into the path of the arm by devices to be described. The pin 60 is provided with a notch 61, through which the arm 59 normally passes as the cam-cylinder rotates or reciprocates. When the pin is moved downward, however-,the arm 59 strikes saidpin and is swung about itspivot to operate the devices on the cam-cylinder. The first operation of the arm 59 causes the instep-needles to be thrown out of operation, the second operation of said arm throws the widening devices into operation, the third operation causes the instep-needles to bereturned and the widening devices to be thrown out, all as clearly described in said patent. The pin 60 is operated at the proper times through an arm 62, secured to a shaft 63 and having its forward end connected with said pin. A second arm 64 is secured to the shaft 63 and has its rear end arranged in the path of a series of cams 65, carried by the disk or drum, the arms 62, shaft 63, and arm 64'forming, in effect, a needle-controlling lever for operating the pin 60. This pin, togetherwith the devices operated thereby, form the mechanism in the machine shown for controlling the operation of the needles.
It is usual in rotary knitting-machines to drive the machine at a high speed during rotary knitting and at a slower speed during reciprocating knitting, and the mechanism for effecting this result in the machine illustrated and for changing from one speed to the other is as follows: A gear 66 is secured to the end of the shaft 10 and is engaged by a pinion 67, formed on the hub of a pulley 68. The pulley 68 is mounted to revolve on a stud 69, secured to the frame and carrying a loose pulley 70 outside the pulley 68. A second loose pulley 71 is mounted to turn on the hub of pulley 68 inside said pulley. When the machine is on rotary knitting, a fast belt 72 runs overthe pulley 68 and drives the machine, a slow belt 73 at this time running idly over the pulley 71. When the speed is to be changed, the fast belt is shifted onto the pulley 70 and the slow belt is shifted onto the pulley 68 and drives the machine at a reduced speed. When the machine is to be stopped, the belt which is on the pulley 68 at that time is shifted onto its loose pulley, so that each belt runs idly over its loose pulley. The mechanism for thus manipulating the belts is novel and embodies certain features of invention. This mechanism embodies two beltshifters arranged to be locked together, so that the speed of the machine may be changed by simultaneously shifting both belts and to be disconnected and moved independently of each other, so that the driving-belt may be shifted onto its loose pulley without shifting the idle belt from its loose pulley. The preferred form of this mechanism is as follows: The belt 72 passes through the fork 7 1 of a belt-shifter 75, and the belt 71 passes through the fork 76 of a shifter 77, said shifters being in the form of slides or bars mounted side by side in the frame, Fig. 8. A spring 79 connectsthe two shifters and tends to throw the shifter to the left and shifter 77 to the right. The means shown for connecting the two shifters so that they will move together is in the form of a latch 80, pivoted at 81 to the shifter 75 and having a s'houlder'82 arranged to engage an abutment or shoulder on the shifter 7 7, formed by a pin 83, which projects through a slot 84 in shifter 75. When the latch is engaged with the pin 83, the spring7 9 is under tension and the two shifters are connected, so that they move together, and the forks 7 1 and 76 are so related that one of the belts 73 or 72 is upon the pulley 68 and the other upon its loose pulley. When ward the left, and a boss 86 on the shifter 77 forms'a stop for limiting the movement of said shifter toward the right.
Any suitable mechanism may be employed to operate the belt-shifters; but it is preferred to operate said shifters in one direction by a spring and in the opposite direction by a cam, which acts to hold the shifters in position during reciprocating knitting or while the slow belt is on the pulley 68. When the shifters are thus operated, means are preferably provided for breaking the connections between the cam and shifters, so that the shifters may be moved to stop the machine even when the cam is in position to hold the slow belt on the driving-pulley. As shown, the connected shifters are moved toward the right, Fig. 8, by a spring 87, connected to shifter 77 and to the frame, and are moved toward the left against the tension of spring 87 by a cam 88, Figs. 5 and 6, carried by the cam-disk 58 and arranged to operate on the upper end of a lever 89, pivoted on the stud 54 and having its lower end connected with the shifter 77. With this construction of mechanism for operating the shifters the shifter 77 is held by the cam in its lefthand position and would not be shifted to the right by spring 79 when the shifters are disconnected unless the connections between the cam and shifter were broken. The end of lever 89 is therefore preferably connected to the shifter 77 by a latch 90, pivoted at 91 to the shifter 77 and having a shoulder 92 arranged to engage a pin 93 on the end of lever 89.
The latches and are preferably con nected by a pin 94, projecting from latch 80 through a slot 95 in latch 90, so that said latches may be simultaneously lifted to disconnect the shifters and break the connections with the operating-cam, The latches in the construction shown are connected by a rod 96 with a frame 97, Figs. 5 and 11, pivoted on the hubof a pawl-carrier to be described, which in turn is pivoted on astud 98, secured in the frame, Fig. 4. The frame 97 normally rests against a stop 99, Fig. 6, and is provided with a laterally-projecting rod 100, forming a handle by which said frame may be rocked to lift the latches and stop the machine. The frame 97 may be automatically rocked to stop the machine by means of an arm or lever 101, loosely pivoted on a shaft 102, mounted in said frame, said arm extending forward and resting upon a pattern-chain 103, Figs. 11 and 13. The arm 101 is provided with a shoulder 104 near its forward end, which is so arranged that when the arm is raised by a lug 105 on the pattern-chain I said shoulder is brought into the path of a reciprocating pawl 106, which draws said arm forward, thus rocking frame 97 and stopping the machine. The machine may be started by a lever 107, pivoted at 108 and having a handle 109 at the front of the machineand having its rear end passing through slots 110 and 111 in the shifters 77 and 75, respectively. Supposing the parts to be in the position shown in Fig. 8, which is the position they would occupy when the machine is stopped on rotary knitting, then by swinging the front end of lever 107 to the left the rear end of said lever'will be caused to act against the right end of slot 111 and move shifter 75 to the right, carrying the fast belt onto pulley 68 and bringing latch 80 into engagement withpin 83. If the machine is stopped when the belt 73 is on pulley 68, in which case the lower end of lever 89 will be in the dottedline position, Fig. 8, then by swinging the front end of lever 107 to the right the rear end is caused to engage the left end of. slot 111 and force shifter 77 to the left and engaging latch 80 and also bringing latch 90 into position to engage lever 89. When the machine is in condition for reciprocating knitting, the fast belt should not be shifted onto the driving-pulley, and means are therefore provided for preventing such movement of the fast belt. This means preferably consists of a stop carried by the lever which controls the position of the clutch, which stop is arranged to prevent the movement of the rear end of the lever 107 toward the right when the clutch'is in engagement with the oscillating pinion. This stop is formed by the end 112 of a slot formed in an arm 113, secured to the end of lever 53, through which slot the lever 107 passes, Fig. 4.
When a toe or heel is being knit, an extra thread is usually knit into the fabric with the main thread, and the needle-cylinder is raised at such time to lengthen the stitches drawn by the needles. This is done in the construction shown by the action of acam 114, Fig. 12, carried bythe disk 58, acting through suitable connections with the rod 24. The cam acts upon the end of a lever 115, projecting from a sleeve 116, mounted on the stud 48, Figs. 3, 6, and 12, and provided with a projecting lug 117. A second sleeve 118 is also loosely mounted on the stud 48 and is provided with projectinglug 119, carrying a screw 120, the end'of which engages lug 117. The sleeve 118 is provided with an arm or lever 121, the outer end of which is connected by a link 122 with a lever 123, pivoted at 124 to the frame and having its lower end connected with the rod 24 by a link 125. The upper end of the lever 123 carries a screw 126, which engages the frame and forms an adjustable stop for determining the normal position of the adjusting-ring 17, and therefore the height of the cylinder and length of stitch. The stop is held against the frame by the action of a spring 127, having one end connected to the link 122 and the other to the frame. The cam 114 is formed on a ring 128, secured to the disk 58, which ring also carries the cams 65, already described, and on the edge of which the cam 88 is formed. The end of the lever 115 during rotary knitting lies in. a recess 129 in the ring 128. When the disk 58 is rotated at the beginning of the heel or toe, the cam 114, formed by the end of recess 129, strikes the end of lever 115 and rocks said lever, thus through the connection described moving the rod 24 rearward and raising the needle-cylinder to lengthen the stitch. During the knitting of the heel or toe the end of lever 115 rides on the ring 128, and the needle-cylinder is thus held elevated until the recess 129 is brought opposite the end of lever' 115, which occurs at the completion of the heel or toe. By adjusting the screw 120 the amount of movement given to lever 115 by the cam 114 may be regulated and the length f stitch on the heel or toe thus regulated.
The cam or controller disk 58, which carries the cams for controlling the speed and motion changing mechanisms,the cams for controlling the operation of the needles, and the cam for controlling the length of the stitches on the toe or heel, is mounted on the stud 98 and is driven by the action of a reciprocating pawl 130,arranged to engage ratchet-teeth formed on said disk.. In the machine illustrated the disk is providedwith twelve'teeth, Fig. 12, every fourth one of which is a long tooth, forming a dwell on which the operating-pawl rides idly until the disk is advanced far enough to allow the pawl 130 to engage said tooth. The disk is given this advance movement at the proper times by pins or projections 131, carried by the pattern-chain and arranged to engage abutments on the cam-disk, said disk having three such abutments corresponding to the number of long teeth or dwells thereon. These abutments are preferably formed by arms or levers 132, pivoted to the disk 58 and arranged to engage a earn 133, which is mounted in a ring 134, secured to the stud. The-cam 133 is so arranged that the arm 132, corresponding with the teeth on which the pawl 130 isworking, is held up in the path of the projection 131 on the chain 103. The other arms are held against the ring 134 by springs 135, so that they cannot strike any succeeding projection 131 and feed the pattern-chain forward improperly. The outward swing of the arms is limited by pins 136. When a projection 131 strikes the arm 132, which rests on the cam .133, the disk 58 is advanced so that the long tooth is engaged by pawl 130, and the disk 58 is then advanced step by step until the next long tooth is brought under the pawl. The disk now remains at rest until another projection 131 on the chain again starts the disk, when it is again fed forwarda third of a revolution. In order that the pattern-chain may be run backward when desired without the inconvenience of lifting each of the projections 131 over the arm 132, which is on the cam 133, said cam is held yieldingly in position, so that it may yield when a projection 131 strikes the back of an arm 132 and allow said projection to pass said arm. As shown, the cam 133 is formed on a plunger mounted in the ring 134 and supported by a spring 137.
The pattern-chain 103 passes over a sprocketwheel 138, mounted on a stud 98, and said chain is fed forward by a pawl 139, which engages a ratchetwheel 140, formed on said sprocket-wheel. The pawl 139 is mounted in a pawl-carrier 141, mounted upon the stud 98. The pawl-carrier is oscillated continuously by an eccentric 142, secured 'to the shaft 40 and carrying an eccentric-strap 143, the other end of which is pivoted to the lower end of the pawl-carrier, Fig. 11. The pawl 139 is mounted to slide vertically in the pawl-carrier, being guided by a screw 144, working in a slot 145. For the greater part ofits travel the pawl rides on a shield 146, carried by a plate 141, secured to stud 98, the travel of the pawl beyond the end of the shield being just suflicient to advance the ratchet one tooth. The pawl-carrier 141 also carries the pawls 106 and 130, which are mounted in a similar manner to pawl 139.
In knitting ladies stockings it is usual to gradually increase the length of the stitches in knitting the calf of the stocking, and the present machine is provided with a mechanism for automatically effecting this fashioning of the stocking. The means employed forthis purpose consists of a cam 148, Figs. 1, 4, and 10, formed on a disk or drum 149, which is secured to a ratchet-wheel 150. The ratchet wheel and disk are mounted on a'bushing 151, which is screwed onto the end of stud 98, Fig. 4. The cam 148 is arranged to act upon a roll 152, mounted on a stud 153, Fig. 10', which is secured to the lever 123, said cam as it is advanced acting to gradually swing said lever about its pivot and rotate the adjustingring 17 to raise the needle-cylinder. The stud 153 is mounted in a slot 154 in the lever 123, Fig.
10, and is engaged on opposite sides by screws 155, which determine its relation to the earn 148. The stud is provided with a flange 156, which engages one side of the lever 123, and said stud is secured in position by a nut 157, which engages the opposite side of the lever. By adjusting the stud in the slot the variation in the length of stitch over the calf of the stocking may be regulated. 7
When ladies stockings are being knit, the product of the machine is a continuous tube, which is afterward severed at points a number of courses from each toe, and in order to assist the operator in severing the tube at the proper points it is preferred to introduce at these points one or more courses of long stitches. The preferred means for effecting thisconsists of a swell or projection 158 onthe machine begins to knit the toe.
knit, and thus cause one or more courses of unusually long stitches to be formed at this point.
After the stockings have been separated the loops or stitches at the edge of the toe are picked onto the carrier of a machine, by which the toe is closed and the stocking completed. In order to facilitate this operation, the machine is provided with means for introducing a course of long stitches or a loose course as Any suitable means may be employed for this purpose without departing from the broad scope of this feature of invention. The means which it is preferred to use for this purpose because of its simplicity and convenience of construction and operation consists of a cam 159, Fig. 1, which is arranged to act on the lever 123 during the course just preceding the beginning of the toe. This cam is preferably formed on the same disk with cams 148 and 158 and is located just beyond the cam 158. After the cam 158 has raised the needle-cylinder for the cutting-off course or courses the roll 152 rests in the depression between cams 158 and 159 for several courses, and then the cam 159 acts to again raise the needle-cylinder for the formation of the looping-course. When knitting half-hose, the fashioning-cam 148 is not used, and in this case the looping-courses are formed by a series of cams 159, formed on the drum 149 and separated from the cam 148 by a flange 160. The roll 152 in this case is shifted on the stud 153 to engage the cams 159, as shown in Fig. 10. The roll 152 is thus shifted by swinging the lever 123 away from cam 148 until the roll may be moved longitudinally on the stud 153 without striking the flange 160 and then allowing the lever to swing forward until the roll rests on the cam 159 or its movement is arrested by the screw 126.
The drum 149 may be operated at the proper times by any suitable mechanism, but is preferably operated by means of a pawl 161, mounted in the pawl-carrier 141 and arranged to engage the ratchet-wheel 150. The pawl 161 is normally held out of engagement with the ratchet 150 by a guard 162, which underlies a pin 163 projecting from said pawl. The
guard 162 is formed on an arm 163, secured.
to the end of the shaft 102, before referred to. An arm 164, Fig. 11, is secured to the other end of the shaft 102 and carries a rod 164, which is adjustably secured therein by a set-screw 165. The lower end of the rod 164 is arranged in the path of lugs 166 on the pattern-chain 103, so that when one of said lugs engages the rod 164 the shaft 102 is rocked, thus swinging arm 163 downward and allowing the pawl 161 -to engage ratchet150 and feed the same and the drum 149 forward. The shaft 102 is held in its normal position by a spring 167, one end of which is secured to the frame and the other end to the arm 164,
said spring acting to hold the arm 163 against a stop168, secured on the rod 100. The spring 167 also serves to hold the frame 97 in its normal position.
As before stated, it is usual to introduce an extra or supplemental thread during the knitting of the toe and heel, and although this may be done by hand it is preferred to provide mechanism for automatically introducing the extra thread at the beginning of the toe or heel and for withdrawing said thread at the completion of the toe or heel. A preferred form of such mechanism is as follows, Figs. 1, 2, 5, 15, and 20: This mechanism comprises in general a trough for bringing the extra thread into engagement with the main thread, a holder which holds the end of the extra thread during rotary knitting, and a cutter for severing the extra thread. Means are also provided for supplying slack thread as the extra thread is carried along by the main thread, so that there may be no tension on the extra thread tending to hold it from passing to the needles with the main thread. In the construction shown the devices for inserting and withdrawing the extra thread are supported by a bracket 169, secured to a rod 170 rising from the frame. A rod 171, secured in the bracket 169, extends forward over the knitting-head and supports a frame or support 17 2 at its front end. The main thread a is led from the usual bobbin through guide 172, through a thread-eye 173, under a clamp 174, through the eye 175 of a take-up 176, from which .it passes through a guide 177 in the frame 172 to the main thread=guide carried with the cam-cylinder. The extra thread 6 passes through a guide 178 to a guide 179 on the bracket 169, thence through guides 180, 181, and 182 to a thread-eye 183, formed in a V-shaped trough 184, from which it passes to the holder formed by the stationary jaw 185 and the movable jaw 186, where the leading end of the thread is held until said thread is to be inserted. When the thread bis to be inserted. the guides .180 and 182 move forward, thus giving up slaok'thread, and the trough 184 moves forward, carrying the extra thread to the main thread and holding a considerable length of said thread against the main thread. At the same time the jaws of the holder are opened and the extra thread is carried along with the main thread by its en= gagement therewith. When thethread is to be withdrawn, the guides and 182 move back, thus drawing thread from the bobbin, and trough .184 moves back, thus separating the extra thread from the main thread and bringing it between the jaws of the holder,
which are then operated to grip and hold the thread. One of the jaws is preferably pro vided with a knife 187 for cutting the extra thread. The trough 184 is carried by two arms 188 and 189, pivoted on the rod 171, and said trough is moved toward the main IQQ thread by a lever 190, pivoted on rod 171 and engaging an arm 191, projecting from the arm 188. The arm 191 is held in engage ment with the lever 190 by a coiled spring 192, oneend of which is secured to a collar 193 and the other to the arm 189. The lever 190 also carries a cam 194, arranged to engage the take-up arm 195 and hold said take-up out of operation during rotary knitting. When the take-up arm is down, as it is when the thread is being drawn to the needles, being held down either by the thread or by the cam 194,
timed.
a projection 196, carried by said take-up, engages the clamp 174 and holds said clamp out of engagement with the thread. The jaws 185 and 186 of the holder are supported on the support 172 just back of and to one side of the thread-guiding eye 175. The movable jaw 186 is pivoted at 197 and is acted on by .a spring 198, which forms a friction-brake,
tending to hold the jaw in any position into which it may be moved. The movable jaw 186 is operated from the trough 184 through a link 199, connected at one end to an arm 200, projecting from the arm 189 and provided at its other end with a slot 201, which is engaged by a screw 202, carried by the jaw 86. During rotary knitting the lower end of slot 201 engages screw 202 and holds the jaws closed. Then the trough 184 is advanced, the slot 201 rides over the screw, and just as the trough completes its forward movement the upper end of slot 201 strikes screw 202 and opens the jaws. When the trough is moved backward, the guide-eye 183 draws the thread 6 to one side away from the main thread and between the jaws 185 and 186, and as the trough completes its backward movement the lower end of slot 201 strikes screw 202, closing the jaws and severing the extra thread. The lever 190 may be operated at the proper time by any mechanism which is suitably In the construction shown this lever is operated from the lever 53, which controls the shifting of the clutch. The lever 190 is connected, by means of a link 203, with one end of a lever 204, the lower end of which is pivoted on the hub of lever 53, Fig. 7. The lever 204 is provided with an extension 205, which supports the guide-eyes 180 and 182, and with an arm 206, which carries a screw 207, arranged to be engaged by the upper end of lever 53. When the lever 53 is operated by cam 57, said lever acts against lever 204, forcing it to the right and swinging the trough 184 forward. This takes place just previous to the shifting of the clutch. At the completion of the toe or heel the roll 56 runs off of the end of the cam 57, and the lever 53 is rocked toward the left to cause the shifting of the clutch into engagement with the rotary pinion. This allows the lever 204 to swing to the left and the trough 184 to move back away from the main thread. In order that the extra thread may be separated from the main thread and severed without danger of carrying the main thread between the jaws of the holder, it is preferred to first move the trough 184 back far enough to separate the threads and then give it its final movement to operatethe cutter and holder. This is done in the machine shown by cutting away the end of cam 88 at 208, so that lever 53 may move to the left before it runs off the end of the cam. This slight movement of the lever'53 does not shift the cam 51, but allows the trough 184 to move back to separate the threads. In the machine shown the parts are so timed that the roll,56 runs off theend of cam 57 when the cam-cylinder is in such a position that the instep-needles are not knitting, and thread is not, therefore, being drawn to the needles. If lever 204 immediately followed the lever 53, it would therefore swing to the left, and thus cause the operation of the cutter and holder when the main thread was slack, the take-up at this time being held down by the cam 194. The main thread being thus slack might lie between the jaws of the holder when they were operated and be severed with the extra thread. It is preferred, therefore, in case the take-up is held out of operation, as in the construction shown, to provide means for preventing the operation of the cutter and holder until the cam-cylinder is in such a position that thread is being drawn to the needles. This means in the form shown consists of a finger 209, projecting from the lever 204 and arranged to ride on the cam 57 after the roll 56 has left said cam. This finger runs off of the end of the cam just after the instep-needles have begun to knit, and the main thread is therefore drawn taut between guides 173 and 175, when the extra thread is severed.
The general operation of the machine is as follows: During rotary knitting the parts .are in the position shown, with the exception that the belt-shifters are locked together and the fast belt is on the pulley 68. When the machine is to pass onto the heel or toe, one of the pins 131 on the pattern-chain strikes an arm 132 and starts the disk 58, bringing the long tooth into position to be engaged by the pawl 130. The disk is now fed forward four teeth. During the first forward movement the cam 88 shifts the slow belt onto the pulley 68, thus reducing the speed of the machine. During the second movement the cam 57 shifts the cam 51, thus changing the motion of the cam-cylinder from rotary to reciprocating and throwing in the extra thread. Cam 114 lifts .the needle-cylinder to lengthen the stitch, and one of the cams shifts the pin 60 to cause the instep-needles to be thrown out of operation. During the third movement the lever 64 runs ofi of the cam 65 and the pin 60 returns to normal position, and the fourth forward movement brings the second long tooth under the pawl 130. The
cause the widening devices to be thrown into action, and the fourth movement carries cam 65 from under lever 64 and also brings the third long tooth under pawl 130. vThe disk 58 now remains stationary until the heel or toe is completed, when it is again started and fed four steps forward. The first and second movements are idle movements. During the third movement the third cam shifts the pin 60 to cause the widening devices to be thrown out of action and the instep-needles to be thrown into action, the roll 56 and finger 209 pass into recess 208 and off of the end of cam 57, thus causing the extra thread to be withdrawn and the clutch to be shifted from the oscillating to the rotary pinion, and lever 115 passes into the recess 129, thus lowering the needle-cylinder to its normal position, and during the fourth movement the cam 65 moves from under lever 64, thus restoring pin 60 to its normal position. The end of lever 89passes off of the cam 88, thus shifting the fast belt onto pulley 68, and the first long tooth is again brought under the pawl 130. The machine continues on rotary knitting until another heel or toe is to be formed, when the same cycle of operations is again performed. The manner of forming the courses of long stitches for cutting off and for closing the toes, the manner of fashioning over the calf of the stocking in knitting ladies stockings, and the manner of stopping the machine when knitting half-hose have already been sufficiently described.
In transferring tops to the needles of the -machine when knitting half-hose the needlecylinder is lowered by hand below its normal position and then returned to its normal position. In order to enable this operation to be quickly and accurately performed, the mechanism for automatically operating the devices for regulating the height of the needle-cylinder is so connected with said devices that it may be disconnected therefrom and said devices operated by hand. In the form shown the link 125 is removably connected with the rod 24, preferably by forming an open-sided recess 210 therein, which fits over the rod 24, Fig. 1. When the needle-cylinder is to be lowered by hand, the link 125 is raised to disengage it from the rod 24, and said rod is swung forward until it strikes a stop 211, carried by said link, which stop is adjustable and determines the distance the needle-cylinder is lowered. When the link 125 is raised, a shoulder 212 thereon moves up in front of a stop 213, which prevents backward movement of said link. The rear side of the recess 210 extends below the front side and acts as a safety-stop to prevent the rod 24 from being moved back too far in returning the rod 24 to its normal position, in which it is engaged by the recess 210.
WhatI claim as my invention, and desire to secure by Letters Patent, is-
1. The combination with a needle-cylinder, of a concentric ring supporting the same, a concentric adjusting-ring, and springs holding the supporting-ring firmly against the adjusting-ring.
'2. The combination with aneedle-cylinder, of a concentric ring supporting the same, means for securingthe needle-cylinderthereto, a concentric adjusting-ring, and springs for holding the supportingring firmly against the adjusting-ring.
3. The combination with a needle-cylinder, of a ring for supporting the same. an adjusting-ring provided with a spiral cam-groove, and supports engaging said groove.
4. The combination with a needle-cylinder, of a ring supporting the same, means for securing the cylinder thereto, an adjusting-ring provided with a spiral cam-groove, supports forengaging said groove, and springs for holding the supporting-ring firmly against the adjusting-ring.
5. The combination with a needle-cylinder, of a cup-ring, a clamp for securing the cylinder therein, a positioning-pin on the cup-ring, an adjusting-ring provided with a spiral camgroove, and supports engaging said groove.
6. The combination with a needle-cylinder, of a ring for supporting the same, lugs projecting from said ring, grooves in which said lugs ride, an adjusting-ring, and springs between said lugs and a fixed frame.
7 The combination with a needle-cylinder, of a cup-ring 11, aclamping-rod 15, lugs 18 on said ring 11, grooves 19, an adjusting-ring 17 having a cam-groove 22, supports 21 engaging said groove, and spring 23 above lugs 18. r
8. The combination, with a cam-cylinder, of a clutch, connections between said clutch and cam-cylinder for transmitting the motion of the clutch to the cylinder, a reciprocating member, a rotary member, a rotary cam, a lever connected with the clutch to move it into engagement with either one or the other of said members and having two arms arranged on opposite sides of said cam and in different planes, and means for shifting said cam to engage either of said arms, substantially as described 9. The combination with a cam-cylinder, a rotary and an oscillating pinion, of a clutch for engaging either of said pinions, connections between said clutch and cam-cylinder for transmitting the motion of the clutch to the cam-cylinder, a rotary cam, a lever connected with said clutch and having two arms arranged on opposite sides of said cam and in different planes, and means for shifting said cam to engage either of said arms.
10. The combination of a shaft, two pinions one of which is a spiral pinion, a clutch for connecting either of said pinions with. the shaft, a spiral gear engaging the spiral pinion and arranged in a different plane, a rack engaging the other pinion, and connections between said spiral gear and rack for reciprocating said rack.
11. The combination of a shaft, two pinions one of which is a spiral pinion, a clutch for connecting either of said pinions with said shaft, a spiral gear engaging said spiral pinion and arranged in a different plane, a bar provided with a rack engaging the other pinion, a transverse slot in said bar, and a crankpin carried by said spiral gear and engaging said slot.
12. The combination of a clutch-shaft, two pinions one of which is a spiral pinion, a clutch for connecting either of said pinions with said shaft, a shaft arranged at right-angles to said clutch-shaft, a spiral gear secured to said shaft and engaging said spiral pinion, a rack engaging theother pinion, and connections between said rack andsaid spiral gear.
13. The combination .of a clutch-shaft, two pinions one of which is a spiral pinion, a clutch for connecting either of said pinions to said shaft, a shaft arranged at right angles to said clutch-shaft, a spiral gear carried thereby and engaging said spiral pinion, a rack-bar engaging said other pinion and provided with a" transverse slot, and a crank-pin on said spiral gear engaging said slot.
14. The combination with a cam-cylinder, of a vertical clutch-shaft geared thereto, two pinions on said shaft one of which is a spiral pinion, a clutch for connecting either of said pinions to said shaft, a horizontal shaft, a spiral gear thereon engaging said spiral pinion, a rack-bar engaging said other pinion and having a transverse slot therein, and a crankpin on said spiral gear engaging said slot.
15. The combination with a cam-cylinder, of a gear 29 secured thereto, a clutch-shaft 27,
a gear 28 secured thereto and engaging gear I 29, a pinion 30 on said shaft, a spiral pinion 31 on said shaft, a clutch 32 between said pinions, driving-shaft 40,,a spiral gear 39 thereon engaging pinion 31, a rack-bar 41 engaging pinion 30, a slot 42 therein, and a crank-pin 43 carried by gear 39 and engaging said slot.
16. The combination, with the cam-cylinder of a knitting machine, of mechanism for clutch, a rotary cam 51, a lever 47 connected with said clutch, and having arms 49 and 50, a lever 53 for shifting said cam 51, and an intermittently-operating cam for acting on said lever. I
18. In a knitting-machine, the combination with mechanism for changing the motion from rotary to reciprocating, of a driving-pulley, two idle pulleys, two belt-shifters independently movable, a starting-lever for operating either of said shifters to start the machine, and means for preventing the movement of said lever to carry the fast belt onto the driving-pulley when the machine is on reciprocating knitting.
19. In a knitting-machine, the combination with mechanism for changing the motion frorn, rotary to reciprocating, a lever 53 for operating the same, a speed-changing mechanism embodying two shifters 77 and 75, a lever 107 for operating either of said shifters, and a stop carried by lever 53 for preventing the movement of lever 107 in one direction when said lever 53 is in position for reciprocating knitting.
20. The combination with a needle-cylinder, of an adjusting-ring for raising and lowering the same, a lever connected therewith, a sleeve from which said lever projects having a lug, a second sleeve having a corresponding lug, a screw for adjusting the distance between said lugs, a lever projecting from said second sleeve, and a cam for acting on said lever.
21. The combination with a needle-cylinder, of an adjusting-ring for raising and lowering the same, a link 125 connected therewith, a lever 121, a link 122 connecting said lever and link 125, alever 115 connected with lever 121, and a cam 114 for acting on lever 115.
22. The combination with a needle-cylinder, of devices for lowering and raising the same, a lever connected with said devices, a cam 148 for operating said lever, a ratchet connected to' said cam, a reciprocating pawl for engaging said ratchet, a guard for holding said pawl out of action, and a patternchain provided with lugs for operating said guard.
23. The combination with a needle-cylinder, of devices for lowering and raising the same, a cam for operating the same, a ratchet connected with said cam, a reciprocating pawl for engaging said ratchet, a guard for holding said pawl out of action, a shaft carrying said guard, an arm secured to said shaft, and a pattern-chain having a series of lugs for engaging said arm.
24. In a machine for knitting stockings, the combination with the needle and cam cylinders, of mechanism for rotating and reciprocating one of said cylinders, mechanism for changing the motion from rotary to reciprocating, and mechanism for changing the rela- IIO tion of the needles and knitting-cam and operating the'motion-changing mechanism during successive revolutions of the rotary cylinder whereby a course of loose stitches is formed adjoining the short courses formed during reciprocating knitting.
25. In a machine for knitting stockings, the combination with the needle and cam cylinders, of mechanism for rotating and reciprocating the cam-cylinder,mechanism for changing the motion from rotary to reciprocating, and means for raising the needle-cylinder and operating the motion changing mechanism during successive revolutions of the cam-cylinder whereby a course of loose stitches is formed adjoining the short courses formed during reciprocating knitting.
26. In a machine for knitting stockings the combination with the needle-cylinder, of devices for raising the same, a lever connected therewith, a drum carryingtwo sets of cams,
and an adjustable roll on said lever for en.
gaging either set of cams.
27 In a machine for knitting stockings the combination with the needle-cylinder, of devices for raising the same, a drum two sets of cams carried thereby, and means for connecting either set of cams with the raising devices. V
28. In a knitting-machine the combination with a speed-changing mechanism, a lever for operating the same, a motion-changing mechanism, a lever for operating the same, mechanism for controlling the operation of the needles, a lever for operating the same, of a disk carrying cams for shifting the speed-changing lever and the motion-changing lever and holding them in their shifted positions until said disk has made substantially a revolution, and a series of cams on said disk for successively operating the needlecontrolling lever during the revolution of said disk.
29. In a knitting-machine the combination with a motion-changing mechanism, and mechanism for varying the length of stitch, of levers for operating said mechanisms, and acamdisk carrying cams for shifting said levers and holding them in their shifted position during substantially a revolution of said disk.
30. In a knitting-machine the combination with a motion-changing mechanism, and mechanism for controlling the operation of the needles, of a cam-disk, a cam on said disk for operating the motion-changing mechanism, a series of cams on said disk for operating the needle-controlling mechanism, a ratchet on said disk having a series of long teeth forming dwells corresponding in number to said series of cams, a pawl for engaging said ratchet, and means for starting said disk.
31. The combination with a speed-changing mechanism, of alever 89 connected therewith, a motion-changing mechanism, a lever 53 connected therewith, a needle-controlling mechanism, a lever 64 connected therewith, acamdisk 58, earns 88 and 57 thereon, a series of cams on said disk, ratchet-teeth on said disk having a number of long teeth corresponding to earn 65, a pawl for engaging said ratchet and means for'starting said disk.
32. The combination with a controller-disk, of arms connected therewith, a pattern-chain having projections for engaging said arms, and means for yieldingly supporting said arms in the path of said projections.
33. The combination with a controller-disk, of arms 132 pivoted thereto, a pattern-chain having projections for engaging said arms, and a yielding cam for supporting said arms in the path of said projections.
34. The combination with a stud, of a controller mounted thereon, a pattern-chain carrier mounted thereon, acam-drum for raising the needle-cylindermounted thereon, ratchets connected with said controller, carrier and drum, a pawl-carrier mounted on said stud, and pawls carried by said carrier for engaging said ratchets.
35. The combination with a stud, of a controller mounted thereon, a pattern-chain carrier mounted thereon, a cam-drum for raising the needle-cylinder mounted thereon, ratchets connected with said controller, carrier, and drum, a pawl-carrier mounted on said stud, pawls carried by said carrier for engaging said ratchets, a stop mechanism, an operating-frame connected therewith and supported on said stud,'and a pawl carried by said pawlcarrier for operating said frame.
36. The combination, with the cam-cylinder of a knittingmachine, of mechanism for changing the motion thereof from rotary to reciprocating and vice versa, embodying a clutch, a rotary cam 51, a lever 47 connected with the clutch and provided with arms 49 and 50, a spring 52 for holding cam 51 in line with arm a9, a lever 53 connected with cam 51 and a cam 57 for acting on lever 53.
37. In a knitting-machine, the combination of an adjusting-ring for regulating the height of the needle-cylinder, a rod 24 connected therewith, a link 125 provided with an open recess for engaging said rod, and mechanism for operating said link.
38. In a knitting-machine the combination of an adjusting-ring for regulating the height of the needle-cylinder, a rod 2 connected therewith, a link 125 provided with a recess 210 engaging said rod, a stop 211 carried by said link, a shoulder 212 on said link, a stop 213, and mechanism for operating said link.
JAMES E. ROWE.
Witnesses:
.[RA L. FISH, R. A. BATES.
US409500A 1900-02-05 1900-02-05 Knitting-machine. Expired - Lifetime US806921A (en)

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Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2527534A (en) * 1947-10-23 1950-10-31 Ellis Albert Roy Circular knitting machine
US2697337A (en) * 1951-10-05 1954-12-21 Stibbe G & Co Ltd Knitting machine

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2527534A (en) * 1947-10-23 1950-10-31 Ellis Albert Roy Circular knitting machine
US2697337A (en) * 1951-10-05 1954-12-21 Stibbe G & Co Ltd Knitting machine

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