US2090600A - Knitting of garments on straightbar machines and in means therefor - Google Patents

Description

1937- H. w. START El AL 2,090,600

KNITTING OF GARMENTS ON STRAIGHT BAR MACHINES AND IN MEANS THEREFOR Filed Dec. 17, 1936 UNITED STATES attic KNITTING OF GARMENTS ON STRAIGHT- BAR MACHINES AND IN MEANS THERE- FOR Harry Wilfred Start, Carlton, and Ernest Start,

Wilford, England, assignors to George Blackburn and Sons Limited, Nottingham, England Application December 17, 1936, Serial No. 116,400 In Great Britain November 29, 1935 6 Claims.

This invention relates to improvements in the method of knitting garments on straight-bar machines and in means therefor, and it is specially adapted to the knitting of hose in which the leg and fore part of the foot are knitted without any interruption or break, and the parts which form the heel are subsequently knitted on the same or a different :machine.

In order to knit the heel parts after finishing the fore part of the foot, a start of a new course has to be made at an intermediate point in the foot portion already knitted, and this can at the present time only be done on a machine which 1 is specially constructed for the purpose.

knitting of the heel parts can be completed. The

reason the first course cannot be knitted at an intermediate point in a garment on an ordinary machine, is, that part of the already knitted garment must in this case be disposed on the inner side of the needles, and the knocking over bits which are disposed just below the sinkers in a machine of the cotton type on which such hose are knitted, will not permit of this course being adopted.

According to this invention, the special appliance comprises a needle bar with tricks in which a series of butted needles are disposed, a cam box which engages with the needle butts and can be traversed by hand, a presser bar which can be moved away from the needles, a series of bits on which the courses are drawn and knitted and which bits can be raised and lowered by means of a hand lever, and a detachable bar with transfer points disposed so that the loops can be readily transferred from the needles on to the said points.

The invention will now be described with reference to the accompanying drawing, in which Fig, 1 is a front elevation, and

Fig. 2 an end elevation of appliance for knitting courses at intermediate points in a garment or piece of fabric constructed according to this invention.

Fig. 3 is a vertical cross section of the appliance.

Fig. 4 is a view showing the knitting cams detached.

Figs. 5 to 9 inclusive are diagrams illustrating the operations performed on the appliance.

Like letters indicate like parts throughout the drawing.

just below the cam box D.

In the preferred construction which is shown in the drawing, a series of preferably bearded needles A are disposed vertically in tricks in a needle bar B, which latter is as shown, secured to a rail C which carries the whole of the mechanism. The rail C may be mounted on standards or secured at a convenient height to a fixture.

The needles A are independent, that is, they can slide in the tricks in the needle bar B, so that they can be operated in succession and will thus draw their own loops in the yarn supplied to them, and the use of sinkers is not necessitated. In order to operate these needles in succession, they are formed with butts A which engage in knitting cams in a cam box D which is disposed at the front of the needle barB and is adapted to slide on two shafts E disposed in front of and parallel to the needle bar B. The ends of these two shafts E are secured in end brackets F secured to the rail C, and the cam box D thereon is fittedwith ordinary knitting 'cams D which are adapted to draw the needles down when it is traversed from right to left as'seen in Fig. l, and are adapted to raise the needles again when it is traversed from left to right.

Associated with the knitting cams D which are shown more clearly in Fig. 4, is an extension J of the cams in the cam box D, and this extension J is located under the butts A of the needles A and holds them all up when the cam box is on the right as shown in Fig. 1. This facilitates the operation of running the work on the needles as the latter cannot then be pushed down. Attached to the cam box D is a handle D by means of which the cam box can be conveniently traversed, and associated with this handle is an arrangement for performing another operation that will be hereinafter described.

A presser bar K is provided, and it is carried on the upper free ends of side arms L which are mounted on a shaft M carried in bearings M in the brackets F, so that the said bar K can be moved back out of the way'when work is being run on the needles, springs L connected to the arms L being provided to hold it in its operative position in which it is shown in Fig. 2.

The presser bar K is drawn back as described by the following arrangement. The arms L are formed with forward extensions L and a bar G which is secured to these extensions is disposed This bar is provided with raised parts G at each end, and a roller Gr on the cam box D which runs along the bar, acts upon the raised parts G and depresses the bar G at the end of each traversing movement and thus withdraws the presser K from the needles.

Above the needles A is a longitudinal. bar V fitted with transfer points V. This bar V is not fixed, but its ends are carried in recesses disposed at the upper ends of brackets W secured to the rail C. This bar V is not in position when the courses are drawn, but is placed in position after this operation in order to receive the loops, and is then removed with the work.

The cam box D for actuating the-needles A, is further fitted in addition to the knitting cams, with a thread carrier D to which a supply of yarn is carried, and associated with this thread carrier is a spring clip D to hold the loose end of the yarn.

In the present arrangement, the courses are drawn and knitted on. the bits P which project between the needles and are carried on a bar P These bits P are similar to the knocking over bits in an ordinary machine, but perform a different ofiice, that is, the courses are drawn and knitted directly upon them, and they are raised in order to transfer the loops from the needles A to the transfer points as will be hereinafter described. This arrangment obviates the necessity for actuating the needles A and the points V when transferring the loops from the former to the latter, and simplifies the construction of the appliance and its operation.

In order to raise the bits P, the bar P is carried on the upper end of arms Q which are secured I on a shaft Q the shaft Q is mounted in the upper ends of side links R which are mounted on a shaft S which is mounted in short arms S secured on a shaft T fitted with a hand lever T The shaft T ismounted in bearing T in the end brackets F and by depressing this hand lever T on the shaft T, the bits P can be raised high enough .to-transfer the loops from the needles A, to the transfer points V which are carried on the detachable bar V 7 The bits P are further moved in between the needles to .a more or less'extent as required by the following arrangement. The handle D associated with the cam box D is mounted on a member D which is pivoted at D to the said box, and the member D is thus turned about its pivot each time it is used to traverse the cam box. Disposed on the member D are twocam parts D and D", and these cam parts act on the shaft Q and. draw the bits P back a little when drawing a course and let them in so that the hooks thereon will hold the work down when the needles are being raised. The shaft Q is held up to the cam parts D and D by means of a spring Q connected to its end.

In front of the needles is a shield Y in which the front part of the work'can be placed when so drawing the course and this shield is secured to '70 a course, and while the needles Aare down (see Fig. 6), the part of the garments X at the front of the needles is then turned to the rear as shown in Fig. 7, that is, to the same side as the other part, and the needles A are then raised by traversing the cam box D to the right, leaving the new course on the needle stems as shown in Fig. 8.

The loops of the course now on the needles or those of any succeeding course that may be knitted, can now be transferred to the transfer points V on the bar V which is placed in position in the brackets W, by raising the bits P, and when this operation is completed, the bar V which carries the transfer points V can be removed together with the garment, as shown in Fig. 9. The loops ,on the points can then be subsequently readily transferred to the needles of an ordinary knitting machine, where the remainder of the heel parts can be knitted.

The advantage of the arrangement described, is, that it does not necessitate the provision. of special facilities for performing this operation on each of the ordinary machines employed in knitting hose, and as the operation of running on and knitting the first courses and transferring the loops to points on transfer bars, ready to trans fer them to a machine, is done on the independent appliance, the ordinary machines are not kept standing while the operation is being performed in each separate division of the same, and consequently a considerable saving in tim is effected.

A further advantage is that the same appliance can be adapted for performing the same operation when required, on any kind of knitted garment or article. a

What we claim is:

1. Apparatus for knitting a course at an intermediate point in a garment, comprising in com bination, a needle bar with butted needles" mounted in tricks therein, a hand traversed needle actuating cam box with cams to engage with the needle butts, a thread carrier on the cam box, bits associated with the needles on which the courses are drawn and kitted, a presser bar which can be moved away from the needles so as to leave the latter clear for running on and a detachable bar with points disposed so thatthe loops of the courses knitted on the needles can be readily transferred thereto, substantially as;

described.

2. Apparatus for knitting :a course at an intermediate point in a garment comprising in combination, a needle bar with butted needles mountedin tricks therein, a hand traversed needle actuating cam box with knitting cams which are extended to one side of the cam box so as to hold up the needles when the cam box is at one end of the needle-bar, a thread carrier, bits associated with the needles on which the courses are drawn and knitted, a presser bar movable away from the needles, and a detachable bar with points disposed so that the loops of the courses knitted on the needles can be readily transferred thereto, substantially as described.

3. Apparatus for knitting a course at an intermediate point in a garment comprising in combination, a needle bar with butted needles mounted in tricks therein, a hand traversed needle actuated cam box with cams to engage with the? needle butts, a thread carrier, bits associated with the needles on which the courses are drawn and knitted, a presser bar movable away from the needles, a detachable bar with points disposed so as to engage with the needles and means for raising the bits associated with the needles in order to transfer theloops from the needles to the points,substantially as described.

4. Apparatus for knitting a course at an intermediate point in a garment comprising in combination, a needle-bar with butted needles mounted in tricks therein, a hand traversed needle actuating cam box with cams to engage with the needle butts, a thread carrier, bits associated with the needles on which the courses are drawn and knitted, a presser bar movable away from the needles, a detachable bar with points disposed so that the loops of the courses knitted on the needles can be readily transferred thereto, a pivoted handle on the cam box, and cams associated therewith adapted to move the hits associated with the needles into engagement with the latter to a more or less extent, substantially as described. 5. Apparatus for knitting a course at an intermediate point in a garment comprising in combination, a needle bar with butted needles mounted in tricks therein, a hand traversed needle actuating cam box with cams to engage with the neeedle butts, a thread carrier, bits associated with the needles on which the courses are drawn and knitted, a presser bar movable away from the needles, and a bar with points disposed so that the loops of the courses knitted on the needles can be transferred thereto said bar being detachably mounted in recesses in brackets disposed so that it can be removed with the loops of a knitted course together with the garment in which the course is knitted substantially as described.

6. Apparatus for knitting a course at an intermediate point in a garment comprising in combination, a needle bar with butted needles mounted in tricks therein, a hand traversed needle actuating cam box with cams to engage with the needle butts, a thread carrier, bits associated with the needles on which the courses are drawn and knitted, a presser bar carried by arms on a shaft, a bar provided with cam lifts at each end secured to said arms and disposed along the underside of the cam box, a roller on the cam box bearing on the said bar so that the presser is withdrawn from the needles by the cam box at each end of its traverse, and a detachable bar with points disposed so that the loops of the courses knitted on the needles can be readily transferred thereto, substantially as described.

HARRY WILFRED START. ERNEST START.

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