US1973781A - Flat hosiery frame - Google Patents

Description

Sept. 18, 1934.

T. R'ICHTER FLAT HOSIERY FRAME FiledApril 1, 1932 //v VENTOR 7745000 f/cHTE/f I ATTORNEY UNITED STATES PATENT OFFICE FLAT HOSIERY FRAME Theodor Richter, Gelenau, Germany Application April 1, 1932, Serial No. 02,408 In Germany January 21, 1932 1 Claim. (Cl. 66-82) This invention relates to fiat hosiery frames tion a device embodying the inventive idea. whose needle bars are moved in vertical direc- In order to produce vertical motion, the needletion by means of eccentrics of the main shaft. bars 4 are, 'as a ru1e, connected with the arms As is generally known, needle bars in flat 110- 7 secured to the needle bar shaft 2. A main 5 siery frames are, as a rule, vertically moved by shaft 6 carried the eccentrics 5. The needle the oscillating needle bar shaft to which oscil-- bars 4 are moved up and down as in tickler latory motion is imparted by means of roller machines, the rolls, which are in contact with levers and eccentrics of the main shaft. The the eccentrics 5, being attached to horizontal eccentrics of the main shaft in these machines levers 8 extending transversely to the longitu- [0 are subdivided into two halves by a vertical cendinal axis of the machine and oscillatorily distral line, and the rollers of the levers menposed in the front part thereof. At their rear tioned where hitherto positioned on the half not end these levers 8 are articulated to the vertical facing the needle bar, so that the needle bars, rods 9 which are pivoted on top to the needle owing to their weight, tend to lift the rolls oif bar links. The rolls are arranged approximately acted by strong springs which hold the rolls to this way raising and lowering of the needle bars their eccentrics. Such springs, however, of 4 is carried out in a very exact manner, the which a large number is employed in larger arms 7 being used for guiding the bars 4. It machines, naturally interfere with the driving is thus possible to considerably reduce the ele- :0 element of the machines, and this has always viations and depressions of the eccentrics 5, since been considered a great drawback. the bearing points of the levers 8 are disposed at According to the invention, this defect is elimthe end thereof. inated by supporting the needle bars on their 1 claim: eccentrics which bring about vertical motion, In a flat hosiery frame, a main shaft, an ecthe weight of the needle bars insuring perfect centric carried by said shaft, a horizontal lever carrying of the rolls on their eccentrics, so that extending transversely to the axis of said shaft small springs for holding the rolls to their eccenand adapted to be actuated by said eccentric, tries should be employed only when the main said lever being in contact with said eccentric, shaft has a very high speed. These springs of a needle bar, a substantially vertical rod pivthe bars. lever, a needle bar shaft, and an arm connected The invention will appear more clearly from with the needle bar shaft and with said needle the following detailed description when taken in bar.

connection with the accompanying drawing THEODOR RICHTER.

:5 which shows in side elevation and partly in secfrom the eccentrics. This tendency is counterin the center of their length on the levers 8. In 70 course do not have to overcome the weight of otally connected with said needle bar and said 85

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