GB1516801A - Cutting machines - Google Patents

Cutting machines

Info

Publication number
GB1516801A
GB1516801A GB884876A GB884876A GB1516801A GB 1516801 A GB1516801 A GB 1516801A GB 884876 A GB884876 A GB 884876A GB 884876 A GB884876 A GB 884876A GB 1516801 A GB1516801 A GB 1516801A
Authority
GB
United Kingdom
Prior art keywords
measured
machine
march
property
errors
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
GB884876A
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.)
Henry Simon Ltd
Original Assignee
Henry Simon 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 Henry Simon Ltd filed Critical Henry Simon Ltd
Priority to GB884876A priority Critical patent/GB1516801A/en
Publication of GB1516801A publication Critical patent/GB1516801A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B23—MACHINE TOOLS; METAL-WORKING NOT OTHERWISE PROVIDED FOR
    • B23D—PLANING; SLOTTING; SHEARING; BROACHING; SAWING; FILING; SCRAPING; LIKE OPERATIONS FOR WORKING METAL BY REMOVING MATERIAL, NOT OTHERWISE PROVIDED FOR
    • B23D36/00—Control arrangements specially adapted for machines for shearing or similar cutting, or for sawing, stock which the latter is travelling otherwise than in the direction of the cut
    • B23D36/0008—Control arrangements specially adapted for machines for shearing or similar cutting, or for sawing, stock which the latter is travelling otherwise than in the direction of the cut for machines with only one cutting, sawing, or shearing devices
    • B23D36/0033—Control arrangements specially adapted for machines for shearing or similar cutting, or for sawing, stock which the latter is travelling otherwise than in the direction of the cut for machines with only one cutting, sawing, or shearing devices for obtaining pieces of a predetermined length
    • B23D36/0041—Control arrangements specially adapted for machines for shearing or similar cutting, or for sawing, stock which the latter is travelling otherwise than in the direction of the cut for machines with only one cutting, sawing, or shearing devices for obtaining pieces of a predetermined length the tool moving continuously

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Controlling Rewinding, Feeding, Winding, Or Abnormalities Of Webs (AREA)

Abstract

1516801 Automatic control systems HENRY SIMON Ltd 2 March 1977 [5 March 1976] 08848/76 Addition to 1455894 Heading G3R In a modification to the control system of Parent Specification, wherein a property of each workpiece produced by a machine is measured, compared with a desired value and errors outside a permitted tolerance summed in a positive or negative direction in one of two accumulators, a correction for the machine is derived from the arithmetric average of the last two measured errors and the sums then reset to zero. In the embodiment, the machine includes rotary knives and the property measured and controlled is the length of blanks cut from a moving paper web.
GB884876A 1977-03-02 1977-03-02 Cutting machines Expired GB1516801A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB884876A GB1516801A (en) 1977-03-02 1977-03-02 Cutting machines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB884876A GB1516801A (en) 1977-03-02 1977-03-02 Cutting machines

Publications (1)

Publication Number Publication Date
GB1516801A true GB1516801A (en) 1978-07-05

Family

ID=9860399

Family Applications (1)

Application Number Title Priority Date Filing Date
GB884876A Expired GB1516801A (en) 1977-03-02 1977-03-02 Cutting machines

Country Status (1)

Country Link
GB (1) GB1516801A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2482884A1 (en) * 1980-05-23 1981-11-27 Clesid Sa DEVICE FOR CONTROLLING ROTARY SHEARS

Cited By (2)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2482884A1 (en) * 1980-05-23 1981-11-27 Clesid Sa DEVICE FOR CONTROLLING ROTARY SHEARS
EP0041018A1 (en) * 1980-05-23 1981-12-02 Clesid S.A. Controlling system for rotating shears

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Legal Events

Date Code Title Description
PS Patent sealed
PCNP Patent ceased through non-payment of renewal fee