GB740186A - Electronic seaming machines - Google Patents

Electronic seaming machines

Info

Publication number
GB740186A
GB740186A GB959/54A GB95954A GB740186A GB 740186 A GB740186 A GB 740186A GB 959/54 A GB959/54 A GB 959/54A GB 95954 A GB95954 A GB 95954A GB 740186 A GB740186 A GB 740186A
Authority
GB
United Kingdom
Prior art keywords
treadle
clutch
machine
oscillator
lever
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
GB959/54A
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 GB740186A publication Critical patent/GB740186A/en
Expired legal-status Critical Current

Links

Classifications

    • H—ELECTRICITY
    • H01—ELECTRIC ELEMENTS
    • H01H—ELECTRIC SWITCHES; RELAYS; SELECTORS; EMERGENCY PROTECTIVE DEVICES
    • H01H21/00—Switches operated by an operating part in the form of a pivotable member acted upon directly by a solid body, e.g. by a hand
    • H01H21/02—Details
    • H01H21/18—Movable parts; Contacts mounted thereon
    • H01H21/22—Operating parts, e.g. handle
    • H01H21/24—Operating parts, e.g. handle biased to return to normal position upon removal of operating force
    • H01H21/26—Operating parts, e.g. handle biased to return to normal position upon removal of operating force adapted for operation by a part of the human body other than the hand, e.g. by foot
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B29—WORKING OF PLASTICS; WORKING OF SUBSTANCES IN A PLASTIC STATE IN GENERAL
    • B29C—SHAPING OR JOINING OF PLASTICS; SHAPING OF MATERIAL IN A PLASTIC STATE, NOT OTHERWISE PROVIDED FOR; AFTER-TREATMENT OF THE SHAPED PRODUCTS, e.g. REPAIRING
    • B29C65/00—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor
    • B29C65/02—Joining or sealing of preformed parts, e.g. welding of plastics materials; Apparatus therefor by heating, with or without pressure
    • B29C65/04—Dielectric heating, e.g. high-frequency welding, i.e. radio frequency welding of plastic materials having dielectric properties, e.g. PVC

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Mechanical Operated Clutches (AREA)
  • Mechanical Control Devices (AREA)

Abstract

740,186. Seaming non-metallic sheet material. SINGER MANUFACTURING CO. Jan. 13, 1954 [Feb. 11, 1953], No. 959/54. Class 42 (1). [Also in Group XXXVII] In an electronic seaming machine having a radio-frequency oscillator and a treadle-controlled clutch for the machine drive, an oscillator-control switch assembly is inserted as a mechanical link between the treadle and the clutch, whereby the oscillator is automatically switched on just before the machine starts and switched off just after the machine stops. A lever 22, pivotable on the same bar 10 as the treadle 11, Fig. 1, is connected by a link 38 to the clutch lever and also carries a pressuresensitive oscillator-control switch 23, Fig. 3. A rod 15 fixed to the treadle passes through slots 17 in the sides of lever 22 and engages a leaf spring actuator 36 for the button 37 of switch 23. When the treadle is depressed to start the machine, bar 15 causes spring 36 to close the oscillator switch which then pivots at 27 against the action of a spring 32 ; when the lost motion of bar 15 in slots 17 has been taken up, level 22 pivots downwardly to actuate the clutch. When the treadle is released to stop the machine, link 38, under the action of the clutch return spring, swings lever 22 upwardly to its initial position as the clutch disengages, and thereafter spring 33 restores rod 15 to its initial position against the top of slots 17 and button 37 is released to open the switch.
GB959/54A 1953-02-11 1954-01-13 Electronic seaming machines Expired GB740186A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US336372A US2718566A (en) 1953-02-11 1953-02-11 Treadle switches for electronic seaming machines

Publications (1)

Publication Number Publication Date
GB740186A true GB740186A (en) 1955-11-09

Family

ID=23315784

Family Applications (1)

Application Number Title Priority Date Filing Date
GB959/54A Expired GB740186A (en) 1953-02-11 1954-01-13 Electronic seaming machines

Country Status (5)

Country Link
US (1) US2718566A (en)
CH (1) CH326656A (en)
DE (1) DE1005355B (en)
FR (1) FR1093159A (en)
GB (1) GB740186A (en)

Families Citing this family (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US5897050A (en) * 1994-07-18 1999-04-27 Barnes; Derek L. Container comprising a base and an upstanding peripheral wall extending upwardly from said base to an apex

Family Cites Families (3)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US2492347A (en) * 1946-06-22 1949-12-27 United Shoe Machinery Corp Progressive electronic bonding machine using stray fields
US2482550A (en) * 1947-05-24 1949-09-20 Furnas Electric Co Foot actuated rotary switch
US2524026A (en) * 1949-06-11 1950-10-03 Virgil H Best Trailer brake control

Also Published As

Publication number Publication date
CH326656A (en) 1957-12-31
FR1093159A (en) 1955-05-02
DE1005355B (en) 1957-03-28
US2718566A (en) 1955-09-20

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