US1219251A - Straight hosiery-frame. - Google Patents

Description

F. CECKA.

STRAIGHTHOS IERY FRAME. APPLICATION FILE-D D50. 8. 1913.

1,219,251, Q Patented Mar. 13, 1917 I viding FRANZ CECKA, or CHEMNITZ,

GERMANY, ASSIGNOR TO SALZER MASCHINENFABRIK, AKTIENGESELLSCHAFT,

THE FIRM OF SCHUBERT & 0F CHEMNITZ, GERMANY.

STRAIGHT HOSIERY-FRAME.

Specification of Letters Patent.

Patented Mar. 1.3, 1917.

Application filed December 8, 1913. Serial No. 805,328.

To all whom it may concern:

Be it known that I, FRANZ CEoKA, a citizen of the German Empire, residing at Chemnitz, in the Kingdom of Saxony, Germany, have invented certain new and useful Improvements in Straight Hosiery-Frames; and I do hereby declare the following to be a full, clear, and exact description of the invention, such as will enable others skilled in the art to which it appertains to make and use the same.

My invention relates to improvements in straight hosiery frames, and more particularl in hosiery frames, in which stop or retarc ing members are provided for retarding the speed of the thread guides. A frame of this class is describedin the patent of the United States to Lieberknecht, N r. 981,663, of January 17, 1911. As described in the Said patent the object of the retarding or stop members is to soften the shocks or blows which are produced when the thread guide bars strike on their stops. As shown in the said patent the speed of the thread guides is retarded by gradually reducing the speed almost to zero, as the thread guide bar approaches the end of its stroke.

I have discovered, that for practical purposes it is sufiicient to reduce the speed of the thread guide bars in a smaller degree, and more particularly to about one half the ordinary speed of the knitting operation. Thereby I am enabled to provide more simple means for retarding the speed byconnecting the retarding means with the knit ting mechanism and constructing the same in such a way, that in knitting, the slur is carried along each time in the direction or the knitting operation, so that'special mechanisms are avoided.

Therefore the object of the improvements is to provide retarding means in a hosiery frame, which are very simple in construe-- tion and effective in operation. With this object in view my invention consists in proretarding means, in which the degree of the retardation remains constant and is the same at the end of the movement of the thread guides as at the beginning of the retardation. In the practical construction the retarding means consists of a stop member or brake for the frame guide carrier, which is carried along in both knitting directions and which moves at a lower speed than the slur or thread guide bar,

the thread guide bar It.

and which is mounted in such a way,that it is overtaken by the member which carries the frame guide bars along, and thereafter retards the same.

For the purpose of explaining the invention two examples embodying the same have been shown in the accompanying drawlng, in which the same letters of reference have been used in all the corresponding parts. In said draw1ng Figure l is a front view of a part of the mechanism of a hosiery frame provided with my improved retarding mechanism, and

Fig. 2, is a similar view, showing a modifiviews to indicate cation of the invention.

member consists of a bar f secured to brackets f mounted on the bar a. The bar f is frictionally engaged by an arm 9 which is adapted to carry along the thread guide bar h. The said carrying mechanism depends on the movement of the knitting mechanism,

and the same speed is imparted thereto as to the knitting mechanism, and the said speed is transmitted to the thread guide bar 71 The mechanism so far described is known in hosiery frames. In the example shown in Fig. 1 my improved retarding mechanism connected with the knitting mechanism consists of a rod Z, which is mounted for reciprocationin longitudinal direction in suitable bearings m, and which is connected by a link n with a rocking lever 0 which is suspended from a relatively fixed bearing bracket p and is connected with the slur' bar a by a link q. During the knitting operation the pivot 7' of the link 9 is reciprocated the same distance as the'slur bar a, and it has the same speed imparted thereto. If the link at is jointed to the lever 0 in the middle thereof so as to divide the same into two parts of equal length, the bar Z moves onlyat one half-the speed of the bar a and her g, which carries the thread guidesalong overtakes a stop member s or 8 provided on the bar 1 which always moves in the same direction as the member 9 and at a smaller Therefore the mem i speed. When the member has thus overtaken one of the stops, it is forced to assume the smaller speed of the bar Z, until it arrives at the end of the stroke of the thread guide which is limited by a fixed stop k. In order that the speed of the member 9 can thus be retarded it engages the bar f by friction, so that it slides longitudinally of the bar 1. The same operation is performed in both knitting mechanisms, both retarding stops '8 and 8 being alternately thrown into operation.

Instead of connecting the retarding mechanism with the knitting mechanism itself, it

may be connected with a special driving mechanism constructed for example in a similar way as that of the knitting mechanism. Fig. 2 shows this construction by way of example. As shown the link n which is connected at one end to the bar Z is connect- .ed with its opposite end to a rocking lever d at the opposite end thereof. The rockingle'ver (l is operated from a cam b by means of a rod 0. The stroke imparted by the cam 22 to the bar Z is smaller than the stroke imparted to the bara. Therefore the bar Z is adapted to retard the movement of the mem-' her 9 in the same way as has been described with reference to Fig. l.

I claim herein as my invention:

In a-hosieryframe, a reciprocable slur connecting bar, a thread guide bar frictionally connected with the latter, a stop member adapted to retard the movement of the thread guide bar, means for imparting reciprocating motion to the connecting bar, a rocking lever, a connection between said connecting bar and a point of said lever, and a connection between said stop member and another point nearer the pivot of said lever.

In testimony whereof I hereunto afiix my signature in the presence of two witnesses.

FRANZ CECKA.

Witnesses:

E, K. Foo'rn, HANS MIRGKE.

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