GB291231A - Improvements in automatic clamping devices for paper cutting and similar machines - Google Patents

Improvements in automatic clamping devices for paper cutting and similar machines

Info

Publication number
GB291231A
GB291231A GB1434127A GB1434127A GB291231A GB 291231 A GB291231 A GB 291231A GB 1434127 A GB1434127 A GB 1434127A GB 1434127 A GB1434127 A GB 1434127A GB 291231 A GB291231 A GB 291231A
Authority
GB
United Kingdom
Prior art keywords
gear
crank
clamp
spiral
paper cutting
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
GB1434127A
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.)
Individual
Original Assignee
Individual
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 Individual filed Critical Individual
Priority to GB1434127A priority Critical patent/GB291231A/en
Publication of GB291231A publication Critical patent/GB291231A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B26—HAND CUTTING TOOLS; CUTTING; SEVERING
    • B26D—CUTTING; DETAILS COMMON TO MACHINES FOR PERFORATING, PUNCHING, CUTTING-OUT, STAMPING-OUT OR SEVERING
    • B26D7/00—Details of apparatus for cutting, cutting-out, stamping-out, punching, perforating, or severing by means other than cutting
    • B26D7/01—Means for holding or positioning work
    • B26D7/02—Means for holding or positioning work with clamping means
    • B26D7/025—Means for holding or positioning work with clamping means acting upon planar surfaces

Landscapes

  • Life Sciences & Earth Sciences (AREA)
  • Forests & Forestry (AREA)
  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Cutting Devices (AREA)

Abstract

291,231. Schroeter, J. F. May 27, 1927. Guillotine machines. - In a paper cutting machine the clamp is actuated by a rack and pinion through a crank-operated telescopic pitman. The knife 6 is reciprocated from a crank on a shaft 10. The clamp 5 carries racks 12 engaging a gear 13 on a shaft 14. A chain 16 allows of floor actuation. A crank 25 is secured to a head 37 carrying spiral racks 38 engaging a spiral gear 39 rotatable in one direction in an adjustable brake sleeve 41 pivoted to loose arms 28. The arms 28 can engage extensions 32 of the gear 13. On the up-stroke of the crank 25 the clamp 5 is lowered on to the pile and the gear 39 then turns to shorten the link 26. On the downstroke the gear 39 turns idly. A spring- pressed toggle lifts the clamps. In a modification spiral shafts drive the gear 39 through a ratchet and the sleeve 41 has a conical bore.
GB1434127A 1927-05-27 1927-05-27 Improvements in automatic clamping devices for paper cutting and similar machines Expired GB291231A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB1434127A GB291231A (en) 1927-05-27 1927-05-27 Improvements in automatic clamping devices for paper cutting and similar machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB1434127A GB291231A (en) 1927-05-27 1927-05-27 Improvements in automatic clamping devices for paper cutting and similar machines

Publications (1)

Publication Number Publication Date
GB291231A true GB291231A (en) 1928-05-31

Family

ID=10039430

Family Applications (1)

Application Number Title Priority Date Filing Date
GB1434127A Expired GB291231A (en) 1927-05-27 1927-05-27 Improvements in automatic clamping devices for paper cutting and similar machines

Country Status (1)

Country Link
GB (1) GB291231A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3289514A (en) * 1962-04-06 1966-12-06 Chandler & Price Co Clamp operating mechanism for paper cutting machines and the like

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
US3289514A (en) * 1962-04-06 1966-12-06 Chandler & Price Co Clamp operating mechanism for paper cutting machines and the like

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