GB786283A - Improvements in or relating to machines suitable for cutting sheet material - Google Patents

Improvements in or relating to machines suitable for cutting sheet material

Info

Publication number
GB786283A
GB786283A GB102655A GB102655A GB786283A GB 786283 A GB786283 A GB 786283A GB 102655 A GB102655 A GB 102655A GB 102655 A GB102655 A GB 102655A GB 786283 A GB786283 A GB 786283A
Authority
GB
United Kingdom
Prior art keywords
knob
devices
switch
operated
movement
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
GB102655A
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.)
Noxet UK Ltd
Original Assignee
British United Shoe Machinery 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 British United Shoe Machinery Ltd filed Critical British United Shoe Machinery Ltd
Priority to GB102655A priority Critical patent/GB786283A/en
Publication of GB786283A publication Critical patent/GB786283A/en
Expired legal-status Critical Current

Links

Classifications

    • F—MECHANICAL ENGINEERING; LIGHTING; HEATING; WEAPONS; BLASTING
    • F16—ENGINEERING ELEMENTS AND UNITS; GENERAL MEASURES FOR PRODUCING AND MAINTAINING EFFECTIVE FUNCTIONING OF MACHINES OR INSTALLATIONS; THERMAL INSULATION IN GENERAL
    • F16P—SAFETY DEVICES IN GENERAL; SAFETY DEVICES FOR PRESSES
    • F16P3/00—Safety devices acting in conjunction with the control or operation of a machine; Control arrangements requiring the simultaneous use of two or more parts of the body
    • F16P3/18—Control arrangements requiring the use of both hands
    • C—CHEMISTRY; METALLURGY
    • C14—SKINS; HIDES; PELTS; LEATHER
    • C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
    • C14B5/00—Clicking, perforating, or cutting leather
    • C—CHEMISTRY; METALLURGY
    • C14—SKINS; HIDES; PELTS; LEATHER
    • C14B—MECHANICAL TREATMENT OR PROCESSING OF SKINS, HIDES OR LEATHER IN GENERAL; PELT-SHEARING MACHINES; INTESTINE-SPLITTING MACHINES
    • C14B2700/00—Mechanical treatment or processing of skins, hides or leather in general; Pelt-shearing machines; Making driving belts; Machines for splitting intestines
    • C14B2700/11—Machines or apparatus for cutting or milling leather or hides
    • C14B2700/113—Cutting presses

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Treatment Of Fiber Materials (AREA)

Abstract

786,283. Machinery safety devices. BRITISH UNITED SHOE MACHINERY CO., Ltd., AINSWORTH, J. R., and CHOICE, F. C. Jan. 12, 1956 [Jan. 13, 1955], No. 1026/55. Class 80 (4). A safety device for a clicking press of the type described in Specification 741,149 having a presser arm 10 adapted to be swung across the workpiece and a cutting knife thereon and then to execute a working stroke comprises a pair of manually operable devices mounted upon the beam which have to be operated concurrently to bring about a working stroke, one of these devices being in the form of a knob which has to be rotated. As shown, a clutch tripping solenoid is controlled by a double switch 14, 18 and a switch 22 arranged in series. The double switch 14, 18 comprises two similar switches in parallel adapted to be operated respectively by trip devices 16, 20 on the two sides of the presser arm 10. Each trip device comprises a palm knob 26 and a finger knob 28, both of which have to be pressed to actuate switch 14 or 18 through a link 48. A barrier knob 30 is provided between the knobs 26 and 28 to prevent operation thereof by other than the hand. The switch 22 is adapted to be downward movement of a stem 60 of a knob 24, which movement is produced by rotation of the knob through a pin 70 thereon engaging fixed cam surfaces 74 or 76 (see Fig. 4). Direct downward movement is prevented by an abutment 28. Thus, to complete the clutch solenoid circuit either of the devices 26, 28 must be operated with one hand whilst the knob 24 must be rotated in one direction or the other by the other hand. The solenoid circuit is completed through a relay which also closes a holding circuit, a further relay being operated on release of the devices 26, 28 and 24 to break this holding circuit. In a modified arrangement the clutch tripping operation is effected mechanically through a push-rod which is mechanically interlocked by two manually operable devices. Sliding movement of push knobs on each side of the presser arm to effect this operation is controlled by an interlock member which must be actuated by rotary movement of a further knob. Specification 667,731, [Group VIII], also is referred to in the Provisional Specification.
GB102655A 1955-01-13 1955-01-13 Improvements in or relating to machines suitable for cutting sheet material Expired GB786283A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB102655A GB786283A (en) 1955-01-13 1955-01-13 Improvements in or relating to machines suitable for cutting sheet material

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB102655A GB786283A (en) 1955-01-13 1955-01-13 Improvements in or relating to machines suitable for cutting sheet material

Publications (1)

Publication Number Publication Date
GB786283A true GB786283A (en) 1957-11-13

Family

ID=9714852

Family Applications (1)

Application Number Title Priority Date Filing Date
GB102655A Expired GB786283A (en) 1955-01-13 1955-01-13 Improvements in or relating to machines suitable for cutting sheet material

Country Status (1)

Country Link
GB (1) GB786283A (en)

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