US2009924A

US2009924A - Blind point

Info

Publication number: US2009924A
Application number: US653710A
Authority: US
Inventors: Heinitz Woldemar
Original assignee: Schubert und Salzer Maschinenfabrik AG
Current assignee: Rieter Ingolstadt Spinnereimaschinenbau AG
Priority date: 1932-02-05
Filing date: 1933-01-26
Publication date: 1935-07-30
Anticipated expiration: 1952-07-30
Also published as: FR749567A

Description

July 30, 1935. w. HEINITZ Y 2,009,924

BLIND POINT Filed Jan. 26, 1933 [/7 yen for Waldemar flew/(z & 1/4

Patented July 30, 1935 BLIND rom'r Woldemar Heinltz, Chemnitz, Germany, assignor to Schubert & Salzer Maschinenfabrik Aktiengesellschaft, Chcmnitz, Germany Application January 2c, 1933, Serial No. 65331 In Germany February 5, 1932 1 Claim. (01. 66-90) This invention relates to a blind point for the lace patterning device of flat hosiery frames.

The blind points hitherto in use in modern Jacquard fiat bar full-fashioned frames have a considerable length and for this reason can be safely arranged only under difllculties. It is quite diflicult to dress the blind point itself perfectly flat over its entire'length with'the result that the blind points are continually jammed. To insert individual distant blind points in the lower part of the slots in the frame is practically impossible, since this part'is covered by other parts of the frame.

The guides for these blind points mustbe milled diiferently, as a blind point must be accurately and safely guided at the upper end but .corr'espondingly easier at thelower bearings so as to insure easy motion of the blind point as a whole. Moreover, the closely adjacent blind points are mutually entrained, owing to the disordered position of their projecting part, whereby knitting defects are produced.

According to the invention, all these drawbacks are avoided by subdividing the blind. point in a manner maintaining coherence of motion and rendering the lower part somewhat weaker than the top portion. The lower parts of the blind points and thus the blind points as a whole are further retained by springs disposed so "as not to contact with each other.

By way of example, one form of the invention is illustrated in the accompanying drawing, in which Figure 1 is a side view, and Fig. 2 a front view thereof. 7

Referring to the drawing, the blind points arranged in the blind point bed I consist of two

parts

2 and 3,'the part 2 engaging with its lower bent end 4 a recess in the top 5 of the lower part 3. The lower parts are provided with hooks B from which the springs I are suspended which are secured to a cross member 8. The hooks 6 of adjacent parts 3 of the blind points are alternately arranged at different heights, and the springs"! are therefore fixed to the cross member 8 at different distances from the blind point bed. In this way the springs are prevented from contacting with one another.

Each

blind point

2, 3 is securely held in inoperative position by its appurtenant spring 'I. 5

By forming the blind points in two sections, 7 it is only necessary to take exceptional care in the manufacture of theupper part or section 2, so that it will properly fit its guide and cooperate with the needles of the knitting machine 10 to which it is applied. The lower part or section 3 of each blind point, however, need not so fit its guide but is intended to move with some play in the guide, so that in the manufacture of this lower section 3 no particular care is to 'be taken. Any friction between the lower sections 3 and their guides is thereby avoided and an easy running of the blind points obtained. From the foregoing, it is quite obvious that the cost of manufacture of blind points will be materially reduced and the difllculties arising from the use of blind points made from a single piece of material are eliminated. The connection between the two sections of each blind point may be effected in any suitable manner or as herein shown and described, but it is important that the detachable connection be such as to cause the sections to move in unison, that is, the coherence of their motion is ensured.

The connection of the

parts

2 and 3 may be effected also in other ways, the essential feature being to maintain coherence of motion between the parts.

I claim:

A lace patterning device for flat hosiery frames comprising in combination-a bed, blind points guided within said bed, said blind points each consisting of an upper and-lower section, means for detachably connecting said sections, a cross member, retaining springs connected to, said cross member and means for detachably connecting the lower sections of the blind points ,to

said springs.

' I WOLDEMAB