GB667731A - Improvements in or relating to machines for cutting sheet material - Google Patents

Improvements in or relating to machines for cutting sheet material

Info

Publication number
GB667731A
GB667731A GB7551/50A GB755150A GB667731A GB 667731 A GB667731 A GB 667731A GB 7551/50 A GB7551/50 A GB 7551/50A GB 755150 A GB755150 A GB 755150A GB 667731 A GB667731 A GB 667731A
Authority
GB
United Kingdom
Prior art keywords
plunger
switch
march
arm
hand
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
GB7551/50A
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
Publication of GB667731A publication Critical patent/GB667731A/en
Expired legal-status Critical Current

Links

Classifications

    • 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

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Chemical & Material Sciences (AREA)
  • Organic Chemistry (AREA)
  • Tumbler Switches (AREA)

Abstract

667,731. Retractive switches. BRITISH UNITED SHOE MACHINERY CO., Ltd. 'March 27, 1950. [March 29, 1949] No. 7551/50. Class 38 (v). [Also in Group VIII] In order to initiate the power operation of a cutting machine (see Group VIII), two electric switches which are arranged in spaced relation on the swinging press-arm 16 of the machine must be closed simultaneously by the use of both hands of the operator. One switch 314 is of push-button type and controlled by a hand grip 322 on a lever 316 pivoted in a recess 320 in the handle 22 by means of which the arm 16 is swung into and out of operative position. The other switch comprises a horizontal plunger 326 which has a hand knob 330 at each end and a central collar 336 slidable with the plunger in a fixed sleeve 338. Two frustoconical members 340 are loosely mounted on the plunger on opposite sides of the sleeve 338 and are forced against the latter by springs 342. The members 340 normally lie adjacent to leaf springs 344 co-operating with switch push buttons 346, and pressure on either of the hand knobs 330 causes outward movement of the member 340 at the opposite end of the plunger and closure of the corresponding switch.
GB7551/50A 1949-03-29 1950-03-27 Improvements in or relating to machines for cutting sheet material Expired GB667731A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
US667731XA 1949-03-29 1949-03-29

Publications (1)

Publication Number Publication Date
GB667731A true GB667731A (en) 1952-03-05

Family

ID=22071592

Family Applications (1)

Application Number Title Priority Date Filing Date
GB7551/50A Expired GB667731A (en) 1949-03-29 1950-03-27 Improvements in or relating to machines for cutting sheet material

Country Status (1)

Country Link
GB (1) GB667731A (en)

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