GB1270409A - Stitching machine - Google Patents

Stitching machine

Info

Publication number
GB1270409A
GB1270409A GB4725169A GB4725169A GB1270409A GB 1270409 A GB1270409 A GB 1270409A GB 4725169 A GB4725169 A GB 4725169A GB 4725169 A GB4725169 A GB 4725169A GB 1270409 A GB1270409 A GB 1270409A
Authority
GB
United Kingdom
Prior art keywords
switch
shaft
cam
crank
stitching
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
GB4725169A
Inventor
Jeffray Weightman
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.)
HOBSON DESIGNS Ltd
Original Assignee
HOBSON DESIGNS Ltd
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 HOBSON DESIGNS Ltd filed Critical HOBSON DESIGNS Ltd
Priority to GB4725169A priority Critical patent/GB1270409A/en
Publication of GB1270409A publication Critical patent/GB1270409A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B42—BOOKBINDING; ALBUMS; FILES; SPECIAL PRINTED MATTER
    • B42B—PERMANENTLY ATTACHING TOGETHER SHEETS, QUIRES OR SIGNATURES OR PERMANENTLY ATTACHING OBJECTS THERETO
    • B42B2/00—Permanently attaching together sheets, quires or signatures by stitching with filamentary material, e.g. textile threads
    • B42B2/02—Machines for stitching with thread

Landscapes

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

Abstract

1,270,409. Stitching machines. HOBSON DESIGNS Ltd. 12 Aug., 1970 [25 Sept., 1969], No. 47251/69. Heading B4C. A stitching machine for stitching together sets of sheets comprises a beam 6 mounted in a frame (not shown) for vertical reciprocation by a crank-shaft 36 and a connecting rod 12. The beam carries one or more stitching heads 8 and the machine includes a stitching station 2. The crank-shaft is driven by an electric motor 22 via an electromagnetic clutch 20 and an electromagnetic brake 18, and the sequence of operations of the machine is controlled by cams 14, 16, 24 and 26 which actuate microswitches 28, 30, 32 and 34 respectively. Normally closed switch 32 is in series with normally open switch 28 and the brake 18, and normally open switches 30, 34 are in parallel with each other and in series with the clutch 20. In operation (with the crank pin initially at the top dead centre position, the switch 28 being closed and brake 18 being energized), a set of sheets is fed to the station 2 and knocked up by means (not shown) driven in synchronism with rotary shaft 4, which is driven independently of the motor 22. When the sheets are properly positioned cam 24 opens switch 32 and causes brake 18 to be de-energized. Subsequently and before switch 32 is released, cam 26 actuates switch 34 which closes a circuit including the clutch 20. The motor 22 commences to drive the crank-shaft. As soon as the crank-shaft 36 rotates cam 14 is removed from engagement with switch 28 which thus opens. Cam 24 now releases switch 32 which thus closes. Continued rotation of the crank-shaft causes cam 16 to actuate switch 30 which thus closes and cam 26 then releases switch 34 which thus opens. As the crank-shaft approaches the end of a single revolution, during which the heads 8 have applied stitches to sheets at the station 2, the cam 16 releases the switch 30 thus causing de-energization of the clutch 20, and the crank-shaft is stopped when cam 14 engages switch 28 to energize the brake 18. Continued rotation of drive shaft 4 will again deliver a set of sheets to the station 2 prior to a further stitching operation.
GB4725169A 1969-09-25 1969-09-25 Stitching machine Expired GB1270409A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB4725169A GB1270409A (en) 1969-09-25 1969-09-25 Stitching machine

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB4725169A GB1270409A (en) 1969-09-25 1969-09-25 Stitching machine

Publications (1)

Publication Number Publication Date
GB1270409A true GB1270409A (en) 1972-04-12

Family

ID=10444308

Family Applications (1)

Application Number Title Priority Date Filing Date
GB4725169A Expired GB1270409A (en) 1969-09-25 1969-09-25 Stitching machine

Country Status (1)

Country Link
GB (1) GB1270409A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4515356A (en) * 1983-02-12 1985-05-07 Agfa-Gevaert Aktiengesellschaft Spring biased crank arm drive for tray mounted stapler

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US4515356A (en) * 1983-02-12 1985-05-07 Agfa-Gevaert Aktiengesellschaft Spring biased crank arm drive for tray mounted stapler

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