GB191218540A - Improvements in and relating to Cranes and Lifting Machinery of like Nature. - Google Patents

Improvements in and relating to Cranes and Lifting Machinery of like Nature.

Info

Publication number
GB191218540A
GB191218540A GB191218540DA GB191218540A GB 191218540 A GB191218540 A GB 191218540A GB 191218540D A GB191218540D A GB 191218540DA GB 191218540 A GB191218540 A GB 191218540A
Authority
GB
United Kingdom
Prior art keywords
jib
pulley
track
ropes
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
Raymond Gill
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 GB191218540A publication Critical patent/GB191218540A/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

Abstract

18,540. Gill, R. Aug. 12. Jib cranes.-Comprises a jib crane in which the load moves in an horizontal path during luffing. The hoisting rope 15 passes from the jib-head pulley over a movable pulley 14 to the winding-drum 21. The pulley 14 moves in guides along an inclined track 6, and its spindle is connected to the jib by ropes 10 passing over a fixed pulley 9, so that when the jib is luffed the pulley 14 is moved to pay out or take in the hoisting-line. The jib is luffed by a motor 19 through toothed gearing and a quadrant 16 fixed to the jib, and the jib is balanced at 5. Slueing gear is provided If the track 6 is straight, the path of the load is only approximately horizontal, but the track may be curved to give a strictly horizontal patch ; or the inclination and curvature of the track may be varied to cause the load to move in any desired way. A method of determining the position of the track 6 by means of a series of ellipses is described in the Specification. In a modification, the ropes 10 pass from the jib to a motor-controlled drum, on which other ropes connected to the pulley 14 are wound in the opposite direction, so that as the motor rotates the drum to luff the jib through the ropes 10, the pulley 14 is simultaneously operated. In this case the jib may be counterbalanced by a weight connected to the pulley 14.
GB191218540D 1912-08-12 1912-08-12 Improvements in and relating to Cranes and Lifting Machinery of like Nature. Expired GB191218540A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB191218540T 1912-08-12

Publications (1)

Publication Number Publication Date
GB191218540A true GB191218540A (en) 1913-08-12

Family

ID=32642890

Family Applications (1)

Application Number Title Priority Date Filing Date
GB191218540D Expired GB191218540A (en) 1912-08-12 1912-08-12 Improvements in and relating to Cranes and Lifting Machinery of like Nature.

Country Status (1)

Country Link
GB (1) GB191218540A (en)

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