GB191121161A - Improvements in Cranes. - Google Patents

Improvements in Cranes.

Info

Publication number
GB191121161A
GB191121161A GB191121161DA GB191121161A GB 191121161 A GB191121161 A GB 191121161A GB 191121161D A GB191121161D A GB 191121161DA GB 191121161 A GB191121161 A GB 191121161A
Authority
GB
United Kingdom
Prior art keywords
luffing
hoisting
bevel
gearing
drum
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
Inventor
Walter Pitt
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
Application granted granted Critical
Publication of GB191121161A publication Critical patent/GB191121161A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C23/00—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes
    • B66C23/06—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs mounted for jibbing or luffing movements
    • B66C23/08—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs mounted for jibbing or luffing movements and adapted to move the loads in predetermined paths
    • B66C23/10—Cranes comprising essentially a beam, boom, or triangular structure acting as a cantilever and mounted for translatory of swinging movements in vertical or horizontal planes or a combination of such movements, e.g. jib-cranes, derricks, tower cranes with jibs mounted for jibbing or luffing movements and adapted to move the loads in predetermined paths the paths being substantially horizontal; Level-luffing jib-cranes
    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66C—CRANES; LOAD-ENGAGING ELEMENTS OR DEVICES FOR CRANES, CAPSTANS, WINCHES, OR TACKLES
    • B66C2700/00—Cranes
    • B66C2700/03—Cranes with arms or jibs; Multiple cranes
    • B66C2700/0307—Cranes in which it is essential that the load is moving horizontally during the luffing movement of the arm or jib

Landscapes

  • Engineering & Computer Science (AREA)
  • Mechanical Engineering (AREA)
  • Jib Cranes (AREA)

Abstract

21,161. Pitt, W. Sept. 25. Jib cranes.-Horizontal traverse of the load is effected during luffing by means of epicyclic gearing. The jib a is pivoted at g to the standard b, and is balanced at c. Luffing is effected by means of a link d pivoted at one end to the standard and at the other end to a nut e traversed along the jib by a screw f. The screw is rotated by the luffing-motor o through bevel-gearing and a vertical shaft j. The hoisting-motor v drives the hoisting-drum u, which is loose on its shaft, through a bevel-wheel t, planet pinions r, and a bevel-wheel s fixed to the drum, the planet-carrier q being normally held fast by the luffing-gear, which may be braked. When the luffing-motor is operated, it also drives the hoisting-drum through spur gearing p, q, and the bevel-gearing r, s, the wheel t being stationary. The proportions of the gears are so arranged that the hoisting-line is wound in or paid out at such a rate as to traverse the load horizontally.
GB191121161D 1911-09-25 1911-09-25 Improvements in Cranes. Expired GB191121161A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191121161T 1911-09-25

Publications (1)

Publication Number Publication Date
GB191121161A true GB191121161A (en) 1912-06-13

Family

ID=32567261

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191121161D Expired GB191121161A (en) 1911-09-25 1911-09-25 Improvements in Cranes.

Country Status (1)

Country Link
GB (1) GB191121161A (en)

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