Modelling Lindsay’s track scale (2)

I laid the scale and its approach tracks last on this side of the yard.  Being nearest to the aisle, I decided to solder the Code 55 rails of this track to Fast Tracks’ PC board ties rather than spike them to wood ties.  This makes it more difficult to damage the track via wayward elbows, etc.  Most likely it’s my wayward elbows that would be the culprit anyhow.

First, that picture of Hamilton’s scale to compare with my model of Lindsay’s.

CN scale house, Hamilton, 1993.  Steve Lucas photo.

CN scale house, Hamilton, 1993.  My photo.  Notice how the rails on the scale platform are higher than those in the rest of the yard–the substantial downgrade on the far side of the scalehouse is proof of this.  I will model this feature. The scalehouse sits on a concrete base and is elevated a bit above the scale platform.

Here’s my model along with a few notes–

005

Ties are being laid to gradually bring the height of the scale rails from the rail level in the yard tracks up to place the rails on the moulded scale platform from the Moffett Models kit.  Tie sanding to level them relative to each other, creosote coloured tie stain, and several layers of ballast are to follow.  Fast Tracks’ PC board ties are interspersed with wood ties having wood shims under them–the rails will be soldered to the PC board ties. The scale house is part of the Moffett Models kit, but I made a mould for and cast the “concrete” base under it. 

Lindsay yard and scale track 25-1-12 006

The ties having been ballasted, unweathered Code 55 rails were soldered to the Fast Tracks’ PC board ties and to flat-head brass machine screws driven through the resin scale deck of the Moffett Models kit.  Two of those screws do triple duty as screws to solder rail to, DCC feeders to the scale rails, and attaching the scale deck to the layout..  Prototypically, there is a gap between scale rails and those on the approach tracks.  The “switch points” either side of the scale on the approach tracks are expansion compensators to keep the scale rails from binding against the rails of the approach tracks.   On the prototype, normal rail expansion will result in the rail expanding downgrade toward the compensator, past the switch points, and thus prevent the rails’ binding against the scale rails.  These are a simple device for the local section forces to keep in good repair.  I modelled the rails on the scale deck as being about six inches higher than the rest of the yard. 

 

Lindsay yard and scale track 25-1-12 004

A view which I hope will show the difference in elevation between rails on the scale deck and the tracks in the rest of the yard.   There is still some scenic work to do.  Scale six-inch-wide or so “flashing” is to be added to both sides of the rails, touching the web of the rails to cover what would be the top of the weigh scale mechanism of the prototype.  The deck on track scales is tarred as well, roofing material commonly being used in the manner of that applied to a flat roof.  The layout edge will have to be brought out about half an inch to support the base of the scalehouse–though I’d like a little bit of ground behind it as well for the viewer to imagine that this is in a real location rather than on the edge of a layout.

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