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Top The TRMA Discussion Forum topic #55539
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Subject: "RE: Winches in reciprocating engine room (starting platform level)" Previous topic | Next topic
Bill WestTue Oct-31-17 10:29 PM
Member since Feb 02nd 2010
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#55621, "RE: Winches in reciprocating engine room (starting platform level)"
In response to In response to 42


          

First a big thanks to Lionel and Ken for the wreck pictures. Now some bits:
I found that the worm drives are not necessarily self locking. If made with 2 to 4 leads on the worm they can drive back. So the presence of load braking should not be a surprise.
Series motors at light load have a weak field and thus little back EMF. This leads to the possibility of over speeding and either the drag brake we are seeing on a few models or Laurence, Scott's flapper brake becomes desirable.
A self stopping brake on a power failure is also desired as is an interlock to prevent powering with the load brake on.

Making a bit of a recap here, we have:

Bob's reply to post 4 1907?
Chambers, Scott, fig 60 cargo -controller is part of the motor case
a load brake band is visible

Ralph's reply to post 5 1907
Chambers, Scott, fig 59 baggage -controller on nearby bulkhead? terminal box sloping off motor top
drag brake??

Steve's reply to post 10 1911
Sunderland, boat -controller on top
load brake and a drag brake

Bob's reply to post 32 1907
Chambers, Scott, fig 58 boat -controller post at left, rest in base. terminal box sloping off motor top
drag brake

Ralph's reply to post 37 Aquitania 1914
Chambers, Scott, fig 37 baggage. -controller on nearby bulkhead
automatic holding brake

Bob's reply to post 40 Mauretania 1907
Laurence, Scott, fig 167 boat -controller and resistors in base
flapper brake

A lot of ways to do this... For our ER winch I'm undecided,
-a load brake is plausible and I think placing the controller and resistors beside the motor would fit the Britannic GA plan. A box case partly like Chambers, Scott's cargo winch would fit. Including a drag brake would be an option.
-alternatively the fig 58 boat winch looks very good,

Bill

  

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Winches in reciprocating engine room (starting platform level) [View all] , Ralph Currell, Tue Oct-17-17 12:01 PM
  RE: Winches in reciprocating engine room (starting platform level), Bill West, Oct 17th 2017, #1
RE: Winches in reciprocating engine room (starting platform level), Ralph Currell, Oct 17th 2017, #2
      RE: Winches in reciprocating engine room (starting platform level), SteveFury, Oct 18th 2017, #3
           RE: Winches in reciprocating engine room (starting platform level), Ralph Currell, Oct 18th 2017, #4
                RE: Winches in reciprocating engine room (starting platform level), bpread, Oct 20th 2017, #5
                     RE: Winches in reciprocating engine room (starting platform level), Ralph Currell, Oct 20th 2017, #6
                          RE: Winches in reciprocating engine room (starting platform level), Scott Andrews, Oct 20th 2017, #8
                               RE: Winches in reciprocating engine room (starting platform level), Ralph Currell, Oct 20th 2017, #9
                                    RE: Winches in reciprocating engine room (starting platform level), Bill West, Oct 20th 2017, #10
                                         RE: Winches in reciprocating engine room (starting platform level), SteveFury, Oct 21st 2017, #11
                                              RE: Winches in reciprocating engine room (starting platform level), Ralph Currell, Oct 22nd 2017, #12
                                                   RE: Winches in reciprocating engine room (starting platform level), leon, Oct 25th 2017, #13
                                                        RE: Winches in reciprocating engine room (starting platform level), Scott Andrews, Oct 25th 2017, #14
                                                             RE: Winches in reciprocating engine room (starting platform level), leon, Oct 25th 2017, #15
                                                                  RE: Winches in reciprocating engine room (starting platform level), Ralph Currell, Oct 25th 2017, #17
                                                                       RE: Winches in reciprocating engine room (starting platform level), Bill West, Oct 26th 2017, #18
                                                                       RE: Winches in reciprocating engine room (starting platform level), bpread, Oct 26th 2017, #19
                                                                            RE: Winches in reciprocating engine room (starting platform level), Ralph Currell, Oct 26th 2017, #22
                                                                                 RE: Winches in reciprocating engine room (starting platform level), Bill West, Oct 26th 2017, #25
                                                                       RE: Winches in reciprocating engine room (starting platform level), leon, Oct 26th 2017, #20
                                                                            RE: Winches in reciprocating engine room (starting platform level), leon, Oct 26th 2017, #21
                                                                                 RE: Winches in reciprocating engine room (starting platform level), Ralph Currell, Oct 26th 2017, #23
                                                                                      RE: Winches in reciprocating engine room (starting platform level), leon, Oct 26th 2017, #24
                                                                                           RE: Winches in reciprocating engine room (starting platform level), Bill West, Oct 26th 2017, #26
                                                                                           RE: Winches in reciprocating engine room (starting platform level), leon, Oct 27th 2017, #27
                                                                                           RE: Winches in reciprocating engine room (starting platform level), Ralph Currell, Oct 27th 2017, #28
                                                                                           RE: Winches in reciprocating engine room (starting platform level), bpread, Oct 27th 2017, #29
                                                                                           RE: Winches in reciprocating engine room (starting platform level), Scott Andrews, Oct 31st 2017, #43
RE: Winches in reciprocating engine room (starting platform level), Scott Andrews, Oct 20th 2017, #7
RE: Winches in reciprocating engine room (starting platform level), leon, Oct 25th 2017, #16
      RE: Winches in reciprocating engine room (starting platform level), Cyril.Codus, Oct 27th 2017, #30
           RE: Winches in reciprocating engine room (starting platform level), bpread, Oct 27th 2017, #31
                RE: Winches in reciprocating engine room (starting platform level), Ralph Currell, Oct 27th 2017, #32
                     RE: Winches in reciprocating engine room (starting platform level), bpread, Oct 28th 2017, #33
                     RE: Winches in reciprocating engine room (starting platform level), Cyril.Codus, Oct 28th 2017, #34
                          RE: Winches in reciprocating engine room (starting platform level), bpread, Oct 28th 2017, #35
                               RE: Winches in reciprocating engine room (starting platform level), Cyril.Codus, Oct 28th 2017, #36
                                    RE: Winches in reciprocating engine room (starting platform level), bpread, Oct 29th 2017, #37
                                         RE: Winches in reciprocating engine room (starting platform level), Ralph Currell, Oct 29th 2017, #38
                                              RE: Winches in reciprocating engine room (starting platform level), bpread, Oct 29th 2017, #39
                                                   RE: Winches in reciprocating engine room (starting platform level), bpread, Oct 29th 2017, #40
                                                        RE: Winches in reciprocating engine room (starting platform level), bpread, Oct 29th 2017, #41
                                                             RE: Winches in reciprocating engine room (starting platform level), Cyril.Codus, Oct 29th 2017, #42
                                                                  RE: Winches in reciprocating engine room (starting platform level), Bill West, Oct 31st 2017 #44
                                                                       RE: Winches in reciprocating engine room (starting platform level), bpread, Nov 01st 2017, #45
                                                                            RE: Winches in reciprocating engine room (starting platform level), bpread, Nov 01st 2017, #46
                                                                                 RE: Winches in reciprocating engine room (starting platform level), Ralph Currell, Nov 01st 2017, #47
                                                                                      RE: Winches in reciprocating engine room (starting platform level), Bill West, Nov 01st 2017, #48
                                                                                           RE: Winches in reciprocating engine room (starting platform level), bpread, Nov 01st 2017, #49
                                                                                           RE: Winches in reciprocating engine room (starting platform level), Bill West, Nov 01st 2017, #50
                                                                                           RE: Winches in reciprocating engine room (starting platform level), bpread, Nov 01st 2017, #51
                                                                                           RE: Winches in reciprocating engine room (starting platform level), bpread, Nov 06th 2017, #52
                                                                                           RE: Winches in reciprocating engine room (starting platform level), Bill West, Nov 07th 2017, #53
                                                                                           RE: Winches in reciprocating engine room (starting platform level), Ralph Currell, Nov 07th 2017, #54
                                                                                           RE: Winches in reciprocating engine room (starting platform level), bpread, Nov 07th 2017, #55
                                                                                           RE: Winches in reciprocating engine room (starting platform level), SteveFury, Nov 12th 2017, #56
                                                                                           RE: Winches in reciprocating engine room (starting platform level), bpread, Nov 12th 2017, #57
                                                                                           RE: Winches in reciprocating engine room (starting platform level), SteveFury, Nov 24th 2017, #58

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