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
GB26798/25A
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.)
Sullivan Machinery Co
Original Assignee
Sullivan Machinery 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 Sullivan Machinery CofiledCriticalSullivan Machinery Co
Publication of GB241954ApublicationCriticalpatent/GB241954A/en
E21C31/00—Driving means incorporated in machines for slitting or completely freeing the mineral from the seam
Landscapes
Engineering & Computer Science
(AREA)
Mining & Mineral Resources
(AREA)
Mechanical Engineering
(AREA)
Life Sciences & Earth Sciences
(AREA)
General Life Sciences & Earth Sciences
(AREA)
Geochemistry & Mineralogy
(AREA)
Geology
(AREA)
Drilling And Exploitation, And Mining Machines And Methods
(AREA)
Abstract
241,954. Sullivan Machinery Go., (Assignees of Holmes, M. P.). April S, 1924, [Convention date]. Drawings to Specification. Coal-cutting machines.-In a mining machine provided with a swingable cutter-carrying bar, rotatable bar-locking means are provided and have means for limiting the rotation thereof. The bar-locking means may comprise a pin as set out in the abridgment of Specification 232,196 and may have a flange on its lower end to hold it in position when the machine is reversed for overcutting.
GB26798/25A1924-04-081925-03-24Improvement in mining machines
ExpiredGB241954A
(en)