US2619062A - Rotatably adjustable work support for sewing machines - Google Patents

Rotatably adjustable work support for sewing machines Download PDF

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Publication number
US2619062A
US2619062A US673181A US67318146A US2619062A US 2619062 A US2619062 A US 2619062A US 673181 A US673181 A US 673181A US 67318146 A US67318146 A US 67318146A US 2619062 A US2619062 A US 2619062A
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US
United States
Prior art keywords
tubular body
ring
working
dog
feed
Prior art date
Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
Expired - Lifetime
Application number
US673181A
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English (en)
Inventor
Jr Josef Keller
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Individual
Original Assignee
Individual
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Filing date
Publication date
Application filed by Individual filed Critical Individual
Application granted granted Critical
Publication of US2619062A publication Critical patent/US2619062A/en
Anticipated expiration legal-status Critical
Expired - Lifetime legal-status Critical Current

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Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B27/00—Work-feeding means
    • D05B27/22—Work-feeding means with means for setting length of stitch
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B73/00—Casings
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B73/00—Casings
    • D05B73/005—Doors or covers for accessing inner parts of the machine; Security devices therefor

Definitions

  • the present invention relates to'sewihg nia- "chi'nes of the type equipped with a-freely carried "workihgsupport and has for its objectthe'pro- 'vision'of means rendering said working support rotatably adjustable and suitable todarn hoselike fabrics, such as hosiery, thereon ,'notwithstanding the fact that the same working support is ordinarily used for sewing purposes underthe action of a feed-dog.
  • a tubular body is mounted on a shoulder or standard of the inachine frame and removably encloses the structure of the working support, said body having a flat longitudinal side or face provided with a stitching hole and opposite thereto a round or arcuate side likewise provided with a stitching hole to the effect that, according to the machine work" to be done, the flat or round side or face of the tubular body, respectively, may be turned up in working position.
  • Fig. 1 is a sectional view in elevation of the working support.
  • Figl 2 is a horizontal section taken along line 2+2 of Fig. 1.
  • Fig. 3 shows a vertical cross section taken along line 33 of Fig. 1' with the support shown in full lines and in one position (for darning) and in'do'tted lines in another position (for sewing).
  • Fig. 4 shows a detail
  • Fig. 5 is a general elevational view of the sewing machine drawn to a reduced scale.
  • Fig. 6 is a side elevational view of a detail
  • the base plate I of the sewing machine carries the standard of the machine frame 2 (Fig. 5)
  • This frame 2 has fixed thereto, as by welding,
  • a-support structure 3 for mounting and supporting different shafts, such as the driving shafts for the bobbin, the feed-dog, etc.
  • the support structure 3 is provided with an annular groove 4' adjacent the machine frame 2 and carries in f'said groove a ring 5 which projects outwardly somewhat beyond the adjacent circular disc 3' of the support 3.
  • r v r n the support structure and forwardly of the Y disc 3' there is arranged a further circular disc 3", on the periphery of which is fitted aring 6.
  • the contour-of the tubular -body-1"' is'-analogous 10 to the contour of the rings, so thatsaid bodyis provided opposite to its"semi-cylindrica1-o1' round longitudinal portion with a flat'longitudinal portion.
  • the free forward end of the'tu'bu- "lar body is'arcuate or hemi -spherically' rounded and comprises a portion 1" which isremovabldto provide access to the bobbincapsule (not shown in the drawing).
  • the tubular body I has in itsfia't' side orportion a stitchinghole forthesewingneedla'as 'well as a number of slit apertures 'lwforthe not illustrated feed-dog which isa'dapted to'pass therethrough, whereas in the opposite *semicylindrical side or face a stitchinghole'lbis provided.
  • ring 5 In' order to locate the tubular body 1* selectively in two opposite workingpositions, so that the fiat or the semi-cylindrical surface thereof, respectively, comes to lie uppermost,"ring 5 is provided at its inner ring surface with'twddiametrically arranged recesses or grooves "I0 (Fig. 3), Oneor the other of these grooves lmrespectively, may be engaged by the nose ll of a'lock ing lever l3 (Fig. 4) which is rotatably mounted on the pin [2 and adjustable in its inner'and outer end positions by means of a manipulating screw M (Fig. 3), whereby the'tubular'body I may be locked in one or the other working'position and may be released therefrom, respectively.
  • a latch bar 20 which, in the above cited working position of the tubular body I, may be reciprocated in endwise direction through a slot 2
  • This bar is articulated to a doublearmed lever 20a (in order to afford the horizontal displacement of bar 20, see Fig. 1) which is rigidly mounted on the pivot 22' of a rotary button 22 and which carries a pin 23 which is engaged in a key groove 24 of a driving block 24.
  • the block 24 is mounted and axially displaceable on an endwise reciprocabl'e shaft which is rotatable by means of the lever system 25' and 25" and which is connected with the not illustrated raising and lowering mechanism for the feed-dog. If block 24 by means of its coupling pin 24a, which may pass through the groove or bore of a coupling member 242) (fixed on shaft 25 by means of a set screw 24c) enters the groove or bore of lever 25', freely rotatable lever 25 will then be coupled to member 241).
  • connection or coupling of shaft 25 with lever system 25', 25" by means of rotary knob or button 22 and block 24 can only take place if the flat portion of body 6 is in working position (shown in dotted lines in Fig. 3).
  • a stitch adjustment mechanism (not shown) is set to zero or neutral position and as a consequence thereof slot I5 of the ring 5 and the recess ll of the bar IE will be brought into registry with respect to ring 5 so that rotation of ring 5 together with tubular body I may be had.
  • the feed-dog is prevented from effectuating any advance movement.
  • the latch bar 20 may be Withdrawn from the slot 2
  • the feed dog can be of any known construction; however, it is preferred to use a feed dog as disclosed in copending U. S. Pat. Appln Ser. No. 673,180 in which rock shaft corresponds to the present rock shaft 25 as seen in Figs. 2 and 6.
  • rock shaft corresponds to the present rock shaft 25 as seen in Figs. 2 and 6.
  • a freely held working support which is adapted to allow the darning of hosiery and the like by the fact that the free end of the support is rounded in such a manner that heels, points of the hose, and like portions may tightly be stretched on the round or convex surface of the tubular body for being darned, somewhat similar to the use of the so-called darning ball or mushroom when darning by hand.
  • a sewing machine having a machine frame with a free borne working support, comprising a tubular body, means rotatably connecting said body to said machine frame so as to enclose said working support, said body including an integral flat longitudinal plate portion with a stitching hole and opposite thereto a rounded portion provided with a stitching hole to the effect that according to the desired machine work, successively the flat and the round portions of the tubular body, respectively, may be moved to lie uppermost for working position.
  • said means includes a ring member engaging said tubular body, said ring member being rotatably mounted on said support, and locking means supported by said machine frame for engagement with said ring member to lock said body when moved to one of said working positions.
  • a sewing machine having a standard and a freely carried work support connected thereto; said work support comprising a tubular body provided with a substantially fiat portion and with an arcuate portion disposed at a location opposite said flat portion of said body, means connectel to said tubular body and rotatable with the latter on said support relative to said standard whereby said tubular body assumes two different positions, respectively, in which said fiat portion comes to lie uppermost with respect to said arcuate portion for sewing operation or said arcuate portion comes to lie uppermost with respect to said flat portion for darning operation, locking means cooperable with said rotatable means for retaining said portions of said tubular body in either of said working positions, and means for operating said locking means whereby said tubular body is released for facilitating rotation thereof or is fixed in either of said working positions, respectively.
  • a sewing machine wherein said rotatable means and said tubular body are arranged for rotation about a common axis, and means removably connecting said tubular body to said rotatable means.

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  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)
US673181A 1945-06-07 1946-05-29 Rotatably adjustable work support for sewing machines Expired - Lifetime US2619062A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CH612696X 1945-06-07

Publications (1)

Publication Number Publication Date
US2619062A true US2619062A (en) 1952-11-25

Family

ID=4523509

Family Applications (1)

Application Number Title Priority Date Filing Date
US673181A Expired - Lifetime US2619062A (en) 1945-06-07 1946-05-29 Rotatably adjustable work support for sewing machines

Country Status (7)

Country Link
US (1) US2619062A (cs)
BE (1) BE465749A (cs)
CH (2) CH251356A (cs)
DE (1) DE875754C (cs)
ES (1) ES173885A1 (cs)
GB (1) GB612696A (cs)
NL (1) NL62934C (cs)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH283393A (de) * 1950-08-11 1952-06-15 Orelli Franz Von Gehäuse einer Nähmaschine mit freiem Arm.

Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1387143A (en) * 1921-08-09 atent office
US2247383A (en) * 1939-12-29 1941-07-01 Sears Roebuck & Co Convertible flat-bed cylinder arm sewing machine

Patent Citations (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US1387143A (en) * 1921-08-09 atent office
US2247383A (en) * 1939-12-29 1941-07-01 Sears Roebuck & Co Convertible flat-bed cylinder arm sewing machine

Also Published As

Publication number Publication date
DE875754C (de) 1953-05-07
CH251356A (de) 1947-10-31
ES173885A1 (es) 1946-08-16
CH251357A (de) 1947-10-31
BE465749A (cs)
GB612696A (en) 1948-11-16
NL62934C (cs)

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