US1896047A - Needle-clamp for sewing machines - Google Patents

Needle-clamp for sewing machines Download PDF

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Publication number
US1896047A
US1896047A US532440A US53244031A US1896047A US 1896047 A US1896047 A US 1896047A US 532440 A US532440 A US 532440A US 53244031 A US53244031 A US 53244031A US 1896047 A US1896047 A US 1896047A
Authority
US
United States
Prior art keywords
needle
bar
gib
clamp
shank
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
US532440A
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English (en)
Inventor
Grieb Alfred
Current Assignee (The listed assignees may be inaccurate. Google has not performed a legal analysis and makes no representation or warranty as to the accuracy of the list.)
Singer Co
Original Assignee
Singer Co
Priority date (The priority date 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 date listed.)
Filing date
Publication date
Application filed by Singer Co filed Critical Singer Co
Priority to US532440A priority Critical patent/US1896047A/en
Priority to GB15600/31A priority patent/GB366396A/en
Priority to NL57591A priority patent/NL30577C/xx
Priority to DES99629D priority patent/DE565708C/de
Priority to CH156718D priority patent/CH156718A/de
Priority to BE381300D priority patent/BE381300A/xx
Priority to FR720133D priority patent/FR720133A/fr
Application granted granted Critical
Publication of US1896047A publication Critical patent/US1896047A/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
    • D05B55/00—Needle holders; Needle bars
    • D05B55/02—Devices for fastening needles to needle bars

Definitions

  • This invention relates to devices for clamping the needle of a sewing machine in working position relative to the needle-bar and. has for an object to provide a needleclamp which is simple in construction, inexpensive to manufacture and easy to assemble,
  • the invention comprises the devices, combinations and arrangements ofparts herein ⁇ after described and claimed.
  • Fig. 1 is a front side elevation of the lower end-portion of the needle-bar and the needle-bar housing head of the sewing machine, with the needle-clamp carried by the needle-bar.
  • Fig. 2 is a vertical section through the device.
  • Fig- 3' is a section on the line 3-3 of Fig. 2.
  • Fig. 4 is a' section of the band element only of the needle-clamp on the line 3-3 of Fig. 2.
  • Fig. 5 is a sectional View ofthe needle-bar only, on the line 3 3 of Fi 2..
  • Fig. 1 is a front side elevation of the lower end-portion of the needle-bar and the needle-bar housing head of the sewing machine, with the needle-clamp carried by the needle-bar.
  • Fig. 2 is a vertical section through the device.
  • Fig- 3' is a section on the line 3-3 of Fig. 2.
  • Fig. 4 is a' section of the band element only of the needle-clamp on the line 3-3 of
  • FIG. 6- is a; perspective view of the need e-clamping gib.
  • Fig. 7 is an elevation or outer face, view of the gib as applied to-the needle-bar.
  • Fig. 8 is a side elevation vof the lower end-portion of the needlebar.
  • Fig. 9j is a front elevation, partly in section, of the lower end portion of the needle-bar,
  • Fig. 10 is a sectional view similar to Fig. 2 showing the parts displaced from operative position in the process of disassembling 'the device.
  • Fig. His 1. perspec- 1931. Serial No. 532,440.
  • the needle-bar housing head of the sewing machine which is formed asus ual at the free end of the sewing machine gooseneck.
  • Mounted in the head lie the reciprocating needle-bar 20f cylindrical'form having in its lower endwise engagement with the bottom wall 3" of the groove 3.
  • a stop-pin 7 is positioned in the groove 3 to properly locate the upper end of the needle relative to the needle-bar.
  • Embracing the recessed lowerend of the needle-bar 2 is the clamping band Shaving a lateral screw-threaded aperture receiving the set-screw 9.
  • the proximate surfaces of the needle-bar 2 and clampingbandS" are formed with coaxial opposed cylindrical apertures 10 and 11 which receive the enlarged cylindrical head 12 of the needleclamping gib 13, the lower end-portion 14 of which extends below the lower end of the needle-bar 2 and is bent'tothe form of a thread-guiding hook,
  • the enlarged head 12 of the gib is adapted to be engaged by the inner end of the set-screw 9, as shown in Fi 2 and 3, and forced against the shank 4 of El e needle 5, thereby clamping the latter securely, in position in the recess or groove 3. Since the enlarged head 12 of the gib is partially received in each of the transverse coaxial recesses 10' and 11 of the needle-bar 2 and clamping band 8, respectively, it serves to lock these two parts together and to prevent relative displacement of such parts from their respective operative positions.
  • the lower. end-portion of the needle-bar 2 is slabbed ofi or cut away at .15 to clear the enlarged head 12 of the gib when the latter is shifted as far as possible into the recess 11 in the clamping band 8.
  • the gib and clamping band may thus be unlocked and removed 3 from the needle-bar 2, as shown in Fig. 10.
  • This unlocking of the parts may be efiected by loosening the set-screw 9 and by engaging the exposed lower end-portion 14 of the gib and shifting the gib toward the set-screw 9 to disengage it from the aperture 10.
  • the gib 13 serves to distribute the pressure of the set-screw 9 over a considerable portion of the length of the needle-shank 4L and effects a more secure grip of the needle than would be effected by the end of the set-screw only, were the latter allowed to directly engage the needle-shank.
  • the side-wall portions of the recesses 10 and 11 which cooperate with the enlarged head 12 of the gib to prevent movement of the band 8 lengthwise of the needle-bar, may be described as upper and lower locking-wall-portions. It is not essential that the head 12 of the gib be cylindrical or that the recesses 10 and 11 be circular, as the desired locking-wall-portions may obviously be provided with various shapes.
  • the sewing machine loop-taker always takes the needle-loop from the short-grooved side of the needle. To. insure precision in the location of the needle relative to the looptaker, it is the practice to slab the shank of the needle on the short-grooved side of the latter, as indicated by the numeral 6.
  • Various sewing machine attachments such as rufiling and buttonholing attachments, are provided with operating levers having forked ends adapted to embrace the usual needleclamp set-screw at the right hand side of the The position of such set-screw should, therefore, not be disturbed.
  • the present improvement provides for the secure clamping of the standard sewing machine needle in a position reversed from its usual position, for'cooperation with a looptaker having a beak passing to the left of the needle-blade, without disturbing any of the conditionsor relations above referred to.
  • a sewing machine needle-clamp comprising, a needle-bar formed in one end with a needle-shank-receiving recess, a clamping band embracing the recessed end of the needle-bar, said needle-bar and clamping band having in their proximate surfaces opposed gib-receiving apertures, means for locking said band against movement endwise of the needle-bar comprising a gib seated in said opposed apertures, and a clamp-screw carried by said band and adapted to engage said gib and force the latter into clamping engagement with the shank of a needle seated in said needle-shankaeceiving recess, said of the needle-bar, the transverse aperture in the needle-bar being in communication with said needlesharrk-receiving recess, a locking gib seated in said opposed apertures, and a clamp-screw carried by said band in position, to engage said gib, said gib being movable out of the gib
  • a sewing machine needle-clamp comprising, a. needle-bar formed in one end with a needle-shank-receivingrecess, a clamping band embracing the recessed end of the needle-bar, said needle-bar and clamping band having in their proximate surface-portions opposed gib-receiving recesses defining upper and lower locking-wall-portions, a lockmg gib in said recesses in engagement with said locking-wall-portions, and a set-screw separate from said gib'and carried by said band and adapted to engage said gib, the
  • a needle-clamp for sewing machines comprising, a needle-bar formed at one end with a needle-shank-receiving groove widened at one point to form a cylindrical recess the axis of which is transverse to the axis of the needle-bar, a clamping band embracing the grooved end of the needle-bar and formed with an inner cylindrical recess coaxial with said first-mentioned cylindrical recess, a cylindrical gib disposed in said recesses, a set-screw carried by said clamping" band and adapted to engage said gib, said gib having a shank-portion extending longitudinally of the needle-bar and beyond the end of the latter.
  • a needle-clamp for sewing machines comprising a needle-bar formed at one end with a needle-shank-receiving groove widened at one point to form acylindrical recess the'axis of which is transverse to the axis vof the needle-bar,-a clamping band embracing the grooved end of the needle-bar andformed with an inner cylindrical recess coaxial with said first-mentioned cylindrical recess, a cylindrical gib disposed in said recesses, a set-screw carried by said clamping band'and adaptedto engage said gib, said gib having a shank-portion extending longitudinally of the needle-bar and beyond the end of the latter, said shank portion having a hooked extremity constituting a needlethread guide.
US532440A 1931-04-24 1931-04-24 Needle-clamp for sewing machines Expired - Lifetime US1896047A (en)

Priority Applications (7)

Application Number Priority Date Filing Date Title
US532440A US1896047A (en) 1931-04-24 1931-04-24 Needle-clamp for sewing machines
GB15600/31A GB366396A (en) 1931-04-24 1931-05-28 Needle-clamp for sewing machines
NL57591A NL30577C (xx) 1931-04-24 1931-07-08
DES99629D DE565708C (de) 1931-04-24 1931-07-08 Naehmaschinen-Nadelklemme
CH156718D CH156718A (de) 1931-04-24 1931-07-09 Nadelklemme für Nähmaschinen.
BE381300D BE381300A (xx) 1931-04-24 1931-07-11
FR720133D FR720133A (fr) 1931-04-24 1931-07-17 Pince à aiguille pour machines à coudre

Applications Claiming Priority (7)

Application Number Priority Date Filing Date Title
US532440A US1896047A (en) 1931-04-24 1931-04-24 Needle-clamp for sewing machines
GB15600/31A GB366396A (en) 1931-04-24 1931-05-28 Needle-clamp for sewing machines
NL57591A NL30577C (xx) 1931-04-24 1931-07-08
DES99629D DE565708C (de) 1931-04-24 1931-07-08 Naehmaschinen-Nadelklemme
CH156718T 1931-07-09
BE381300T 1931-07-11
FR720133T 1931-07-17

Publications (1)

Publication Number Publication Date
US1896047A true US1896047A (en) 1933-01-31

Family

ID=25998267

Family Applications (1)

Application Number Title Priority Date Filing Date
US532440A Expired - Lifetime US1896047A (en) 1931-04-24 1931-04-24 Needle-clamp for sewing machines

Country Status (7)

Country Link
US (1) US1896047A (xx)
BE (1) BE381300A (xx)
CH (1) CH156718A (xx)
DE (1) DE565708C (xx)
FR (1) FR720133A (xx)
GB (1) GB366396A (xx)
NL (1) NL30577C (xx)

Cited By (9)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2663274A (en) * 1950-02-28 1953-12-22 Birtman Electric Co Thread guide and needle clamping member for sewing machines
US2691951A (en) * 1952-09-26 1954-10-19 Gellman Mfg Co Thread guide for sewing machines
US2698589A (en) * 1951-07-25 1955-01-04 Singer Mfg Co Sewing needle clamp
US2706459A (en) * 1951-12-12 1955-04-19 White Sewing Machine Corp Needle bar clamp
US2792798A (en) * 1953-08-17 1957-05-21 Pfaff Ag G M Needle clamp
US2855880A (en) * 1954-10-05 1958-10-14 Singer Mfg Co Sewing needle clamps
US2862468A (en) * 1954-11-29 1958-12-02 Singer Mfg Co Ornamental stitch sewing machines
US3016031A (en) * 1958-08-27 1962-01-09 Singer Mfg Co Needle clamps for sewing machines
US20090050036A1 (en) * 2007-08-20 2009-02-26 Card-Monroe Corp. Gauging element modules

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
NL291738A (xx) * 1954-11-29

Cited By (10)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2663274A (en) * 1950-02-28 1953-12-22 Birtman Electric Co Thread guide and needle clamping member for sewing machines
US2698589A (en) * 1951-07-25 1955-01-04 Singer Mfg Co Sewing needle clamp
US2706459A (en) * 1951-12-12 1955-04-19 White Sewing Machine Corp Needle bar clamp
US2691951A (en) * 1952-09-26 1954-10-19 Gellman Mfg Co Thread guide for sewing machines
US2792798A (en) * 1953-08-17 1957-05-21 Pfaff Ag G M Needle clamp
US2855880A (en) * 1954-10-05 1958-10-14 Singer Mfg Co Sewing needle clamps
US2862468A (en) * 1954-11-29 1958-12-02 Singer Mfg Co Ornamental stitch sewing machines
US3016031A (en) * 1958-08-27 1962-01-09 Singer Mfg Co Needle clamps for sewing machines
US20090050036A1 (en) * 2007-08-20 2009-02-26 Card-Monroe Corp. Gauging element modules
US7997219B2 (en) * 2007-08-20 2011-08-16 Card-Monroe Corp. System and method for facilitating removal of gauge parts from hook bar modules

Also Published As

Publication number Publication date
CH156718A (de) 1932-08-31
FR720133A (fr) 1932-02-19
NL30577C (xx) 1933-08-15
DE565708C (de) 1932-12-03
GB366396A (en) 1932-02-04
BE381300A (xx) 1931-08-31

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