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GB759249A - Feeding mechanism for sewing machines - Google Patents

Feeding mechanism for sewing machines

Info

Publication number
GB759249A
GB759249A GB37313/54A GB3731354A GB759249A GB 759249 A GB759249 A GB 759249A GB 37313/54 A GB37313/54 A GB 37313/54A GB 3731354 A GB3731354 A GB 3731354A GB 759249 A GB759249 A GB 759249A
Authority
GB
United Kingdom
Prior art keywords
spring
feed
lever
head
sleeve
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
Application number
GB37313/54A
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
Publication of GB759249A publication Critical patent/GB759249A/en
Expired legal-status Critical Current

Links

Classifications

    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05B—SEWING
    • D05B27/00—Work-feeding means
    • D05B27/24—Feed-dog lifting and lowering devices
    • D—TEXTILES; PAPER
    • D05—SEWING; EMBROIDERING; TUFTING
    • D05D—INDEXING SCHEME ASSOCIATED WITH SUBCLASSES D05B AND D05C, RELATING TO SEWING, EMBROIDERING AND TUFTING
    • D05D2207/00—Use of special elements
    • D05D2207/02—Pneumatic or hydraulic devices

Landscapes

  • Engineering & Computer Science (AREA)
  • Textile Engineering (AREA)
  • Sewing Machines And Sewing (AREA)

Abstract

759,249. Sewing machines. SINGER MANUFACTURING CO. Dec. 24, 1954 [Jan. 15, 1954], No. 37313/54. Class 112. In a four-motion feed mechanism the feed dog is connected to the feed-lift shaft by disengageable means which comprise a first member operated by the feed-lift shaft, a second member connected to the feed dog, a movable device carried by one of said members and movable into engagement with the other member, a spring engaging one end of the movable device, and means for compressing the spring and thereby connecting the movable device with said other member. The feed lift shaft 44 carries a crank arm 68 adapted to be releasably connected to a lever 53 which is journalled on shaft 44 and is coupled to a feed bar carrying the feed dog. When the lever s disconnected from the crank arm, a spring 57 rotates the lever to lower the feed dog into an inoperative position. A rod 201 is screwed at one end into the crank arm and passes through a flared hole 66 in the lever, the other end of the rod having a cylindrical head 205 carrying a radial pin 207 which engages in a spiral cam slot 212 formed in a sleeve 208 mounted on head 205. A sleeve 216 having a domed head 217 is slidably mounted on rod 201 and is interposed between a strong spring 214 and a weak spring 222. Rotation of sleeve 208 in one direction, by means of a handle 209, serves to compress spring 214 and thereby urge head 217 into hole 66 for connecting the lever to the crank arm. Rotation of sleeve 208 in the opposite direction releases spring 214 to allow spring 222 to expel head 217 from hole 66. Specification 721,003 is referred to.
GB37313/54A 1954-01-15 1954-12-24 Feeding mechanism for sewing machines Expired GB759249A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US404300A US2724354A (en) 1954-01-15 1954-01-15 Feeding mechanisms for sewing machines

Publications (1)

Publication Number Publication Date
GB759249A true GB759249A (en) 1956-10-17

Family

ID=23599052

Family Applications (1)

Application Number Title Priority Date Filing Date
GB37313/54A Expired GB759249A (en) 1954-01-15 1954-12-24 Feeding mechanism for sewing machines

Country Status (3)

Country Link
US (1) US2724354A (en)
DE (1) DE1000222B (en)
GB (1) GB759249A (en)

Families Citing this family (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
CH538562A (en) * 1971-07-20 1973-06-30 Necchi Spa Flat base of a sewing machine in which a hook-eyeglass unit is housed
DD220063A1 (en) * 1983-11-01 1985-03-20 Textima Veb K LIFTING GEAR FOR THE TRANSPORTATION OF A SEWING MACHINE

Family Cites Families (5)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
GB392619A (en) * 1931-11-25 1933-05-25 Singer Mfg Co Throw-out feed-lift mechanism for sewing machines
DE629826C (en) * 1934-06-26 1936-05-13 Anker Werke Ag Knife gate valve drive
US2440031A (en) * 1945-09-15 1948-04-20 William H Maxwell Drop feed mechanism for sewing machines
US2643625A (en) * 1950-03-21 1953-06-30 Union Special Machine Co Work feeding mechanism for sewing machines
US2682243A (en) * 1952-07-30 1954-06-29 Singer Mfg Co Feeding mechanism for sewing machines

Also Published As

Publication number Publication date
DE1000222B (en) 1957-01-03
US2724354A (en) 1955-11-22

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