GB493906A - Improvements in or relating to cyclically variable speed driving mechanism - Google Patents

Improvements in or relating to cyclically variable speed driving mechanism

Info

Publication number
GB493906A
GB493906A GB2560438A GB2560438A GB493906A GB 493906 A GB493906 A GB 493906A GB 2560438 A GB2560438 A GB 2560438A GB 2560438 A GB2560438 A GB 2560438A GB 493906 A GB493906 A GB 493906A
Authority
GB
United Kingdom
Prior art keywords
shaft
cut
driving
variable speed
driven
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
GB2560438A
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.)
THRISSELL ENGINEERING Co
Original Assignee
THRISSELL ENGINEERING Co
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 THRISSELL ENGINEERING Co filed Critical THRISSELL ENGINEERING Co
Priority to GB2560438A priority Critical patent/GB493906A/en
Publication of GB493906A publication Critical patent/GB493906A/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
    • F16H—GEARING
    • F16H35/00—Gearings or mechanisms with other special functional features
    • F16H35/02—Gearings or mechanisms with other special functional features for conveying rotary motion with cyclically varying velocity ratio

Landscapes

  • Engineering & Computer Science (AREA)
  • General Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Details Of Cutting Devices (AREA)
  • Making Paper Articles (AREA)

Abstract

493,906. Cutting paper board &c. MORRISON, J. L. M., and THRISSELL ENGINEERING CO., Ltd. March 12, 1937, No. 25604 /38. Divided out of 493,908. [Class 31 (i)] [Also in Group XXIV] A cyclically variable speed driving-mechanism comprises a four - bar kinematic chain including driving and driven shafts one of which is adjustable so as to lie on either side of a plane containing the axis of the other, being movable through a curved path so as to obtain the full range of maximum and minimum speeds at one angular position of the driven shaft. The mechanism is particularly applicable to cut-off mechanism in which lengths of fibre board &c., are cut from a moving web, means being provided for varying the length of cut. The mechanism comprises a driving shaft 100, crank 40, link 50, and a crank 60 on a driven shaft 61 which is out of alignment with the driving shaft. The shaft 100 is connected by gears 101, 102 and links 104 to a shaft 103 in fixed bearings so that the shaft 100 is adjustable along an arcuate path which approximates to the above-mentioned curved path and which intersects the axis of the driven shaft. British Specifications 412,127, 437,029, and U.S.A. Specification 2,059,412 are referred to.
GB2560438A 1937-03-12 1937-03-12 Improvements in or relating to cyclically variable speed driving mechanism Expired GB493906A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB2560438A GB493906A (en) 1937-03-12 1937-03-12 Improvements in or relating to cyclically variable speed driving mechanism

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB2560438A GB493906A (en) 1937-03-12 1937-03-12 Improvements in or relating to cyclically variable speed driving mechanism

Publications (1)

Publication Number Publication Date
GB493906A true GB493906A (en) 1938-10-12

Family

ID=10230378

Family Applications (1)

Application Number Title Priority Date Filing Date
GB2560438A Expired GB493906A (en) 1937-03-12 1937-03-12 Improvements in or relating to cyclically variable speed driving mechanism

Country Status (1)

Country Link
GB (1) GB493906A (en)

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