GB249992A - Overwind prevention gear for colliery winding engines - Google Patents

Overwind prevention gear for colliery winding engines

Info

Publication number
GB249992A
GB249992A GB579025A GB579025A GB249992A GB 249992 A GB249992 A GB 249992A GB 579025 A GB579025 A GB 579025A GB 579025 A GB579025 A GB 579025A GB 249992 A GB249992 A GB 249992A
Authority
GB
United Kingdom
Prior art keywords
prevention gear
colliery
overwind prevention
colliery winding
winding engines
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
GB579025A
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.)
ROBERT HUNTER HOWAT
Original Assignee
ROBERT HUNTER HOWAT
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 ROBERT HUNTER HOWAT filed Critical ROBERT HUNTER HOWAT
Priority to GB579025A priority Critical patent/GB249992A/en
Publication of GB249992A publication Critical patent/GB249992A/en
Expired legal-status Critical Current

Links

Classifications

    • B—PERFORMING OPERATIONS; TRANSPORTING
    • B66—HOISTING; LIFTING; HAULING
    • B66B—ELEVATORS; ESCALATORS OR MOVING WALKWAYS
    • B66B5/00—Applications of checking, fault-correcting, or safety devices in elevators
    • B66B5/02—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions
    • B66B5/08—Applications of checking, fault-correcting, or safety devices in elevators responsive to abnormal operating conditions for preventing overwinding

Landscapes

  • Transmission Devices (AREA)
  • Gear-Shifting Mechanisms (AREA)

Abstract

249,992. Howat, R. H., Logan, J., and Russell, J. March 3, 1925. Mechanical telegraphs. - In colliery winding- apparatus the rod 47 of the bell by which the engineman is signalled carries pawls 46 which actuate a ratchet wheel 45 connected to a stop 44. When men are being lowered, the signal is given a prearranged number of times and the stop 44 is advanced to a position in the path of an arm 5 on a shaft 1 connected with the throttle and so limits the opening of the throttle.
GB579025A 1925-03-03 1925-03-03 Overwind prevention gear for colliery winding engines Expired GB249992A (en)

Priority Applications (1)

Application Number Priority Date Filing Date Title
GB579025A GB249992A (en) 1925-03-03 1925-03-03 Overwind prevention gear for colliery winding engines

Applications Claiming Priority (1)

Application Number Priority Date Filing Date Title
GB579025A GB249992A (en) 1925-03-03 1925-03-03 Overwind prevention gear for colliery winding engines

Publications (1)

Publication Number Publication Date
GB249992A true GB249992A (en) 1926-04-08

Family

ID=9802667

Family Applications (1)

Application Number Title Priority Date Filing Date
GB579025A Expired GB249992A (en) 1925-03-03 1925-03-03 Overwind prevention gear for colliery winding engines

Country Status (1)

Country Link
GB (1) GB249992A (en)

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2547369A1 (en) * 1983-06-09 1984-12-14 Morin Jacques Wall fixing device

Cited By (1)

* Cited by examiner, † Cited by third party
Publication number Priority date Publication date Assignee Title
FR2547369A1 (en) * 1983-06-09 1984-12-14 Morin Jacques Wall fixing device

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