CA497918A - Travelling block velocity indicator, position indicator and safety control - Google Patents

Travelling block velocity indicator, position indicator and safety control

Info

Publication number
CA497918A
CA497918A CA497918A CA497918DA CA497918A CA 497918 A CA497918 A CA 497918A CA 497918 A CA497918 A CA 497918A CA 497918D A CA497918D A CA 497918DA CA 497918 A CA497918 A CA 497918A
Authority
CA
Canada
Prior art keywords
indicator
safety control
travelling block
block velocity
position indicator
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
CA497918A
Other languages
French (fr)
Inventor
W. Storm Lynn
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.)
INDEPENDENT DEVELOPMENT Co
Original Assignee
INDEPENDENT DEVELOPMENT Co
Publication date
Application granted granted Critical
Publication of CA497918A publication Critical patent/CA497918A/en
Expired legal-status Critical Current

Links

CA497918A Travelling block velocity indicator, position indicator and safety control Expired CA497918A (en)

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
CA497918T

Publications (1)

Publication Number Publication Date
CA497918A true CA497918A (en) 1953-11-24

Family

ID=35643354

Family Applications (1)

Application Number Title Priority Date Filing Date
CA497918A Expired CA497918A (en) Travelling block velocity indicator, position indicator and safety control

Country Status (1)

Country Link
CA (1) CA497918A (en)

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