To paraphrase Vane Jones, "Knowledge is of little value until shared with others."

Saturday, March 3, 2018

Finishing-Up the Single Truck Work Car Part 3

There are 2 items to be taken care of in finishing the work car. In a prior Post you saw a strange device attached to a coupler. The Van Dorn couplers with the tongue sticking out from the coupler head were intended to be coupled up to other Van Dorn, link and pin, and knuckle couplers with a slot in the head.

As an aside - many streetcar and interurban lines started operation with cars having simple link and pin or Van Dorn couplers. These couplers were mounted lower than standard knuckle couplers of the time. The North Shore Line started out this way. Some trolley lines retained the link and pin couplers until the line quit operations. The couplers were used primarily to tow a dead car into the barn for repair. A serious problem with the link and pin/Van Dorn couplers was the need for a man to stand between the cars during the coupling and uncoupling process. Many men were injured.  

Lines like the North Shore need to be able to couple cars together in trains. These lines either changed to knuckle style or Tomlinson couplers which could be coupled/uncoupled  "remotely" without a man needed in between the cars.

None of my models with knuckle couplers have a slot in the head of the coupler. Most of my models have Kadee couplers. The Kadee couplers do not have a slot in the head. To be able to couple my work/service car to Kadee couplers, a device with a shank to bring the Kadee  coupler up to the correct level had to be made.

These are photos of making the device.
The Kadee Coupler shank was filed down. 00-90 hex head screws were used. The piece of brass was tapped 00-90 to hold the screws.


This is the completed adaptor for Kadee couplers. After testing was done to see if the adaptor worked, 00-90 washers and nuts were attached below just in case the screw threads in the brass failed. The adaptor was painted black at that time.


 The adaptor attached to the Tomlinson coupler head on the work car.


The coupler on the work car droops making the adaptor droop. Some adjustment can be made to bring the Kadee coupler on the adaptor level.

Even since the 1st time I used bath tube caulk I realized it would be good for use as an adhesive in some applications. The original caulk gave off an odor of vinegar (acetic acid) during curing. Since then bath tube caulk has come in various colors including clear and has been used for various caulking/finishing applications.

The acetic acid brings up an interesting problem with using the caulk in electronic boards. The boards will short-out if the caulk is placed on them!

I've used the clear bath tube caulk to hold passengers in place. Mainly because the caulk does not interfere with the painted finish in most applications. Plus, the passengers can easily be removed!

Recently GE realized their caulk was being used as a glue. Here are 2 tubes of their caulk product labeled for different uses. Both tubes contain the same product - Silicone II.
The tube on the left has been opened and used. Both tubes contain the exact same product. The caulk is now odor free. Because they are acetic acid free(?) = no smell; I do not know if them can be used with electronic boards.

A paper clamp works out well to fold over the end of the tube in order to apply pressure on the contents of the tube.


This is the motorman of the single truck work car. The styrene base was painted a wood color. The controller was painted wood color, the top painted brass, and the knob on the controller handle painted black. The brake staff painted black, handle painted brass, and the knob on the end of the handle painted black.

The motorman was glued in place using the GE Glue caulk. Once the caulk cured (about 24 hours) the base with the motorman was glued in place used the caulk.

Everything on the work car was screwed together and the work car runs well!
I guess the motorman is in the opposite end of the car.

Cheers,
Ed


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