Vintage screw-jack locomotive hoists

These are some photos of vintage 1919 era screw-jack locomotive hoists.  The hoists were designed for unwheeling steam locomotives in division repair shops or similar facilities.  They were less expensive and easier to use than pits.

 Above is a four-jack solution.

And here is a six-jack solution.

Here are some photos of the jacks with the covers removed to show the screw worm.

The screw-jacks were also used for passenger cars.

These jacks would be very easy to model.

Also, I have started work on the blacksmith shop.  So far I have only built the floor and two wall frames for the main structure.  There is as yet no siding applied to the framing.

The two sides are the right side and the rear.  There is a window opening in the right side and two doorways in the rear wall.  The left door leads to a partially fenced yard in the back that was once used for horses being shoed.  The right door leads into an attached storage shed.  The floor is made from card stock.  The front will have an open double door so that the interior will be somewhat visible.