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
GB27731/29A
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.)
LUDWIG GOTTLIEB HEINRICH GOEBE
Original Assignee
LUDWIG GOTTLIEB HEINRICH GOEBE
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Publication date
Application filed by LUDWIG GOTTLIEB HEINRICH GOEBEfiledCriticalLUDWIG GOTTLIEB HEINRICH GOEBE
Publication of GB335721ApublicationCriticalpatent/GB335721A/en
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
B66C23/60—Derricks
B66C23/605—Derricks employing ships' masts
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Engineering & Computer Science
(AREA)
Mechanical Engineering
(AREA)
Valve-Gear Or Valve Arrangements
(AREA)
Abstract
335,721. Gobel, L. G. H. Oct. 12, 1928, [Convention date]. Guide pulleys.-A guide pulley D for use with a derrick L is mounted in a member E which can turn about a horizontal pivot G and is held in any position by the engagement of a toothed sleeve P with teeth on the member C. The sleeve is acted on by a spring F the tension of which can be regulated by a nut S.
GB27731/29A1928-10-121929-09-12Improvements in pulleys
ExpiredGB335721A
(en)