US1061024A - Web receiver and take-up mechanism for knitting-machines. - Google Patents

Description

H. SWINGLEHURST.

WEB RECEIVER AND TAKE-UP MECHANISM FOR KNITTING MACHINES.

APPLICATION FILED JAN. 25, 1912.

Patented May 6, 1913.

iNVENTOF? HARRY SWlNGLEHURST BY Hus ATTORNEY 1 Ell-l:

WITNESSES 7GMKJM nrnrnn i ternist canton.

HARRY SWINGLEHURST, 015 BOSTON, MASSACHUSETTS, ASSIGNOR T0 SCOTT & WIL- LIAMS, INCORPORATED, 075 CAMDEN, NEW JERSEY, A CORPORATION OF NEW JERSEY.

WEB RECEIVER AND TAKE-UP MECHANIShI FOR KNITTINGJVEACHINES.

Specification of Letters Patent.

Patented May 6, 1933.

Application filed January 25, 193.2. Seria11 3'o. 673,391.

T 0 all whom it may concern:

Be it known that I, HARRY Swrncnn- HURST, a citizen of the United States, residing in Boston, Massachusetts, have invented certain Improvements in Web Receivers and Take-Up Mechanism. tor Knitting-Machines, of which the f llowing is a specification.

My invention relates to that class of knitting machines which are intended for knitting stocking webs with seamless heel anc toe pockets thereon, and in which the cylinder has rotating movement during the knitting of the tubular web for the leg or foot of the stocking and reciprocating or to-and-fto movement during the knitting of the heel and toe pockets, the object of my invention being to lessen the shock and strain upon the machine during the time that the reciprocating or to-and-tro movcment is being imparted to the cylinder. This object I attain by disconnecting the parts carrying the web receiver or take-up mechanism from the cylinder during the reciprocating movements of the latter.

In the accompanying drawingsFigure 1 is a view, partly in side elevation and partly in vertical section of sufiicient of a knit-ting machine to illustrate my invention; Fig. 2 isa-n enlarged view, partly in elevation ad partly in transverse section, on the line Zd, Fig. 1; Fig. 8 is a side elevation of part of the take-up mechanism of the machine; Fig. 4 is a vertical sectional view illustrating a certain adaptation of my invention, and Fig. 5 is 'a sectional view illustrating one of the elements of the take-up operating device. In Fig. l of the drawings, 1 represents part of the bed plate of the machine which has bearings for a bevel wheel upon which is mounted the needle cylinder 3 or" the machine, the bewl wheel being intended to mesh with another bevel wheel on a shaft at one side of the machine, which shaft is provided with mechanism of any suitable character for imparting either rotary or to-an'd-t'ro motion thereto. Such mechanism is known in that type of machine to Which my invention relates, and one form of such mechanism is shown and described in Letters Patent of George D. Mayo, No. 126,178, dated April 21, 1903, therefore I have not comidered it necessary to describe it.

The cylinder of the machine is mounted in a cylindrical carrier 3* which, in the present instance, forms part of the bevel wheel 2, the cylinder being mounted upon pins 4 which pass through openings in the bevel wheel and rest upon a ring 4*, the latter being contained in :1 depending portion of the fixed frame 1 so that by raising or lowering said ring the cylinder 3 can be correspondingly raised or lowered. Other means of connecting the cylinder 3 to the bevel wheel 2 so that; it partakes of either the rotary or to-and-fro movements of the latter may, however, be adopted within the scope or" my invention.

Below the cylinder of the machine is atrame 5 which, as shown in Fig. 1, is of cylindrical form, the knitted web being fed downwardly thereinto so that it constitutes a receiver for said knitted web, which may be permitted to accumulate therein until a considerable lengthv of .web has-been produced, whereupon the lower portion of the web may, at a time when the receiver is not rotating, be severed from the upper portion of the web and removed from the receiver, openings being formed in the sides of the receiver for permitting access to the Web for this purpose.

The receiver may or may not be provided with take-up mechanism for theknitted web, 0 r,'on the otherhand, the take-up mechanism may constitute the receiver for said Web, an open framework, hence the term receiver, as used in my claims, may, unless qualified by the context, be construed to mean either a receptacle in which the knitted Web. ispermitted to accumulate or appropriate take-up mechanism for the knitted web.

In the construction shown in Fig. 1 takeup mechanism is combined with the re ceiver 5, said take-up mechanism comprising the usual pair of take-up rolls geared togetherso as to rotate in. unison, one of the take-up rolls being provided with a ratchet wheel 6 which is engaged by pawl 7 pivotally mounted upon a lever 8 hung to the receiver 5 and moved in one direction by a cam 9 and in the other direction by a spring-actuated plunger 9 contained in a casing 10 on the receiver. (See Fig. 5).

The cam 9 forms part ot' a ring 9 which rests upon'a flange 11 on the receiv but i is prevented from turning therewith by engagemeut of a pin 12 thereon with a slotted bracket 12 mounted upon the fixed lower framework of the machine, as shown in Fig. 1.

Usually in machines of' the type to which my intention relates the receiver is permanently connected to the cylinder or its drive wheel and partakes both of the rotary and reciprocating movements of the latter but such construction is objectionable be-" cause the receiver is relatively heavy and acquires considerable mome'ntumduring each reciprocation of the cylinder, which momentum -:nust be overcome at every change in the direction of reciprocation-of said cylinder with the result that the machine is subjected to severe strains during the time that reciprocating or to-and-fro knitting is be ing performed. In carrying out my inven tion I relieve the machine from such strains by releasing the receiver from engagement with the cylinder drive mechanism during the time that reciprocating movement is being imparted to the latter.

'lteferring first to Fig. 1 of'the drawings it will be noted that the cylinder carrier 3 has a depending tubular portion .whose lower end is provided with teeth 13 which are adapted to engage with corresponding teeth 13" at the upper end of the tubular web receiver 5. T he latter is capable of being raised so as to cause such engagement of the teeth 13 and 13 or of being lowered so as to withdraw the teeth 13 from engagement with the teeth 13, the means for effecting these movements being shown in Fig; 1 and being as follows: The lower end of the web receiver 5 has a depending rod 14 mounted so as to be free, to rotate and to rise and fall in a bearing in the lower portion of the fixed frame of the machine, said rod 14 being recessed at the lower end for the reception of the upper portion of a ball 15 whose lower portion rests in the recessed upper end of a rod 16 mounted so as to be free to rise and fall in a bearing in the fixed frame and resting at its lower end upon one arm of a lever 17 pivoted to said fixed frame, and having its other arm connected to the lower end of a rod 18 having an adjust-ing turn-buckle 19, and provided at its upper end with a head 20 vertically slotted for the reception of a pin 21 on one arm of a lever 22, the latter being pivotally mount ed 'on the fixed frame and having on its other arm an antifriction roller, stud, or projection,'23, which engages a cam ring 24k on a shaft 25, the latter being operated so as to have a single turn during each complete cycle of operation of the machine and serving also to control the mechanism whereby change is effected from rotating to reciprocatingmovement of the needle cylin der, as set forth in Letters Patent 726,178

so as to carry its teeth 13 3 and will rotate therewith.

before noted. The lever 22 is forked at one end for the reception of thehead 20 of the rod 18 and this forked portion of the lever bears upon ears 26 upon a sleeve 27 which is free to slide vertically upon the upper portion of the rod 18 and 'is supported by a coiled spring 28 surrounding the rod and interposed between the sleeve 27 and a collar 29 on the rod. The'cam ring 24 is so constructed, that, whenever the cylinder driving mechanism 15 shifted so as to change' the movement of'the cylinder from rotating to reciprocating, the lever 22 will be act-u ated so as to permit therod 18' to rise and the receiver 5 to fallsufliciently to carry its teeth 13 out of engagementwith the teeth 13 of the cylinder carrier 3, and, Whenever the cylinderv driving mechanism is actuated so as to change the movement of thecylinder from reciprocating to rotary, the lever 22 will be actuated so as to force the rod 18 downwardly and thereby lift the receiver again into engagement with the teeth- 13 of the cylinder carrier 3*. During the time that the needle cylinder is being reeiprocated, therefore, in the formation of the heel or toe pocket upon the knitted tube, the receiver 5 will be released from connection with the cylinder carrier and will remain in a quiescent condition, but during the time that the needle cylinder is being rotated the receiver will be in engagement with the cylinder carrier If the lever 22 should chance to be actuated at such time that the lift of the receiver would be prevented by contact of the ends of the teeth 13, 13, the sleeve 27 will be depressed so as to compress the spring 28 and as soon as the ends of the teeth and 13 have passed each other the recoil of the spring 28 will serve to depress the rod 18 and raise the receiver 5 so as to force the teeth 13 into engagement with the teeth 13. Both sets of teeth are preferably straight-sided as shown in Fig. 1 so that when in engagement any tendency to independent movement of either the needle carrier or receiver will notforce the teeth out of engagement with one another.

In Fig. i I have shown a modification of the machine shown in Fig. 1, whereby the raising and lowering of the, web receiver and take-up mechanism is rendered unnecessary. In this modification a ring 60 is interposed between the toothed upper end of the web receiver 5 and the toothed lower end of the cylinder carrier 8, this ring being capable. of being moved vertically by any suitable operating device as for instance a ring 61 pivoted at one side of the depending hub on the bed plate 1 and engaged on the opposite side era-ting rod corresponding with the shown'in Fig.1, this ring having rod 18 at each side a pin 62 passing through a slot in said hub and engaging an annular groove 63 in the ring. 60 so as to impart vertical movement thereto without interfering with the rotary movement thereof. In thiscase the rod 18 may be connected to the lever 22 by devices similar to those shown in Fig. l, and the rod 18 will, in such case, extend upwardly from the lever :22 instead of downwardly therefrom. The ring 60 has teeth both upon-its upper ahd lower edges, the teeth on the upper edge being deep and being constantly in engagement with corresponding deep teeth on thecylinder carrier 3 while the teeth on the lower edge of the ring are relatively shallow and can thus be moved out of and into engagement with the teeth on the upper ed e of the web receiver as the ring 601s raise and lowered.

I claim 1. The combination of a knitting machine having a rotating and reciprocating needle cylinder with a toothed member'thereon, a webreceiver also having a toothed member, and means whereby the toothed member of the needle cylinder is put in or out of driving connection with the. toothed member of the web receiver. 2. The combination of a knitting achine having a rotating and reciprocating needle cylinder with toothed member thereon, a web receiver also having a toothed member, a member interposed between said toothed members and having teeth for engaging with each, and means for moving.sa1d intermediate toothed member so as to cause it to connect or disconnect the cylinder member and receiver.

3. The combination of a knitting machine having a rotating and reciprocating needle cylinder with toothed member thereon, a web receiver also-having a toothed member, a member interposed between said toothed members and having teeth in permanent engagement with one of the aforesaid toothed members but susceptible of movement so'as to carry its teeth into or out of'engagement with the other of said toothed members- 4. The combination of a knitting machine having a rotating and reciprocating, needle cylinder with toothed member, a web receiver likewise having a toothed member,

mechanism for effecting change in the movements of the needle cylinder and mechanism cooperating with that which effects change in the movements of the needle cylinder and serving to operatively connect said toothed members during the rotating movements of the needle cylinder and disconnect them during the reciprocating movements of the nee-- disconnecting said toothed members, said means having as elements members movable in respect to one another and a spring in terposed between them.

7. The combination of a knitting machine having a rotating and reciprocating needle cylinder with toothed-member, a web re- "ceiver likewise having a toothed member,

means for operatively connecting and disconnecting saidtoothed members, and take up mechanism carried by said web receiver and having as elements ratchet mechanism, an actuating cam therefor mounted on the web receiver, and means for engaging the vsaid cam so as to prevent rotation of the same with the web receiver.

In testimony whereof, I have signed my name to this specification, in the presence of two subscribinglwitnesses.

" HARRY SWINGLEHURST.

Witnesses:

Anmnn M. BLADES, THERESA F. MURPHY.

Copies of this patent may be obtained for five cents each, by addressing the Commissioner of Patents.

Washington, D. O.

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