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churchfayreuk
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Re: Novelty Merchantman Crane ??

Postby churchfayreuk » Mon Mar 01, 2010 10:56 pm

After a few textings and a couple of calls I finally got to meet the guy and see the motor. It's a UK Replacement with gearbox !PUZZLED!
So we agreed a price and off I went - I was like a kid with a new toy, straight to the workshop to fit my find and bring the old man to life :shock:
!PUNISH! !PUNISH! short lived !!! It doesn't fit. The spacing is wrong and the gearbox fouls up on the mech.
So back to the drawing board - well this board. Now I need help. My waters have been wetted but I cannot get wet :evil:

Any help - need to be happy '!'

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bob
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Re: Novelty Merchantman Crane ??

Postby bob » Tue Mar 02, 2010 2:25 am

The way to go here is to go with an original 120 volt motor and gearbox that I think you were offered previously. This is the way the machines were operated originally in countries with a 240 volt supply, ie by adding a 240 to 120v stepdown transformer, rather than by replacing the motor and gearbox. The speed difference caused by the change from 50 to 60 cycles is minimal and is only of concern on jukeboxes where it affects the sound. By putting a light dimmer switch control in the circuit you can control the speed. There is no difficulty in keeping the light bulb supply separate and still at 240 volts.

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pennymachines
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Re: Novelty Merchantman Crane ??

Postby pennymachines » Tue Mar 02, 2010 2:54 pm

Here's what was fitted as original on the UK export models - may be hard to find, but at least you'll know what you're looking for:

Dumore Type XAL (Spec No. 3211) manufactured by The Dumore Company, Racine, Wisconsin, USA.
Volts 240
Watts (not recorded)
Full Load Speed R.P.M. (not recorded)
Rating (not recorded)

The gear ratio is 40 to 1.

Alternatively, as Bob says, a stepped down 120 volt motor would suffice - a slower speed is no disadvantage on a home amusement crane.
dumore1.jpg
Dumore2.jpg
Dumore2.jpg (14.56 KiB) Viewed 1515 times

churchfayreuk
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Re: Novelty Merchantman Crane ??

Postby churchfayreuk » Tue Mar 02, 2010 9:57 pm

That's the kiddy, is that in one of your machines?
I even have the original wooden block, and the nuts!!
I think the 110volt is going to be my only option. I'm sure at least I can keep looking.
As soon as I'm running I will post again. It's been great hearing from all, and THANK-YOU all very much,
Martin.

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operator bell
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Re: Novelty Merchantman Crane ??

Postby operator bell » Wed Mar 03, 2010 5:44 am

Dumore Type XAL (Spec No. 3211) manufactured by The Dumore Company, Racine, Wisconsin, USA.
Volts 240
Watts (not recorded)
Full Load Speed R.P.M. (not recorded)
Rating (not recorded)

The gear ratio is 40 to 1.
From that spec and the look of it, I believe it's a shunt-wound motor with brushes and a commutator. That means its speed won't be affected by the 50/60 cycles difference, since these motors can run on AC or DC, but will be quite linear with voltage.

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grabber
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Re: Novelty Merchantman Crane ??

Postby grabber » Wed Mar 03, 2010 6:44 am

You could always send a message to James Roller, the crane man. I think he would know the spec. of these motors: http://www.jamesroller.com

churchfayreuk
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Re: Novelty Merchantman Crane ??

Postby churchfayreuk » Wed Mar 03, 2010 8:51 am

Hi Guys, you have been outstanding in helping me with my quest.
There seems to be the general consensus that a 110v will do - so looking down those lines, not only here in the Good old UK, but now I've got friends far and wide scouting for me too (more Christmas cards on the list). One question - mounted on the underside of the play bed (top-mounted in workings door), I have what looks like a rheostat!!!
Is this to adjust the motor speed? (It's an 8 to 10 inch long black box with a slider),

Martin.

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operator bell
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Re: Novelty Merchantman Crane ??

Postby operator bell » Wed Mar 03, 2010 9:56 am

One question - mounted on the underside of the play bed (top-mounted in workings door), I have what looks like a rheostat!!!
Is this to adjust the motor speed? (It's an 8 to 10 inch long black box with a slider)
Almost certainly, yes. That's standard for speed control of shunt motors. Put it in the 110V side of the circuit, not the 240.

churchfayreuk
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Re: Novelty Merchantman Crane ??

Postby churchfayreuk » Mon Apr 05, 2010 10:30 pm

Oh well it's Easter <well been and gone> Now I'm going to book a nervous breakdown in for April late!! It's been manic on my repair side. Everybody from South Shields Newcastle, right down to Weymouth has been serviced, NOW IT'S MY TIME!

The Merchantman is going to work by the end of April. I'm getting fed up showing everybody how it works by turning the spindle.
The last motor all though said was from one turned out to be too big on the output gearbox :evil:
So in my travels I've found a small 240 V with gearbox, so I'm hoping a bit of machining to accept the fly bar and using the rheostat reducer I can make the old man turn on its own steam.
I'm still looking for something more age related - someone must have one. Everybody I show it to says, "I remember them! But where are they now?" :#:

Martin

churchfayreuk
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Re: Novelty Merchantman Crane ??

Postby churchfayreuk » Tue Apr 20, 2010 10:44 pm

The latest Up-date: Well like I said in my last post, it's going to be working by the end of April. Well it is. !!YIPPEE!!
I was digging through a mountain of old spares and came across, what I think was a old pusher motor. It looked like it might do my job! So wired it up on the bench to see the RPM and looked good to me, so off we go: cut a slit in the shaft and drilled a hole (nowhere near centre ha ha), and into the crane; fitted a small bolt through the drive shaft and fixed it down to the base; wired the motor through the Rheostat, stood well back and plugged it in. !!YABBADABBA!! !!RAYOF!!
It only bloody worked. %|% Small adjustment on the tilt to correct the early stop, and Hey Presto!
It even sounds like what I think an old 1930s crane should sound like.
Now I'm as happy as a pig in the poo !!
I will post a couple of pics soon.
Still would like to find an original one (motor) if possible,
Martin


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