What it is
The rounding boards are a band of curved panels that runs around the outer edge of the canopy. Together they form a ring, like the brim of a crown. They sit at the height where people on the ground naturally look.
Their first job is practical. Behind them run the sweeps, the long radial arms that hold up the canopy and the platform. Bare sweeps look like a barn roof. The rounding boards hide them and give the machine a finished outline.
Their second job is display. The boards carry the owner's name, painted scenes, carved shields, mirrors and rows of light bulbs. When the machine turns, the whole band moves past the crowd like a slow parade.
What it is made of
Most boards are wooden: thin planks shaped to the curve, with carved pieces applied on top. Some later boards used pressed or cast ornaments to save carving time. The surface was painted in oils. Raised details were often finished in gold leaf, which catches light better than gold paint.
- Rounding board
- One curved outer panel of the canopy ring. A machine has many, joined end to end.
- Cresting
- Carved ornament that rises above the rounding boards, often shells, scrolls or shields.
- Shield
- A carved boss set at intervals, often covering the end of a sweep.
- Scenery panel
- A painted landscape or scene, on the boards or around the center.
- Center casing
- The panels and mirrors wrapped around the center pole, hiding the gears.
Mirrors and light
Bevelled mirrors were set into the boards and the center casing. They doubled the light and the movement. A rider sees the horses repeated, and the ride seems bigger and busier than it is.
Electric light arrived as the golden age began. Rows of small incandescent bulbs were fixed along the boards and the cresting. At night the ring of light became the ride's sign. Many machines now use modern bulbs in the old sockets.
What the boards tell you
| Detail | What to check | Why it matters |
|---|---|---|
| Lettering | Painted names or slogans | May name an owner, park or later operator |
| Ornament type | Carved wood or cast pieces | Helps date the boards and the shop |
| Bulb sockets | Spacing, holes, old wiring paths | Shows later rewiring and repairs |
| Paint layers | Chips at edges and joints | Reveals earlier color schemes |
Paint layers and restoration
Rounding boards sit outdoors or under open roofs. They fade, peel and get repainted. A board can carry many layers. Restorers face a choice. Strip back to the original factory paint, or keep a later scheme that a town remembers.
Careful restorers test small windows first. They scrape or solvent-clean a patch, layer by layer, and record each color. The decision comes after the record. Jane's Carousel in Brooklyn is a well-known example of a long restoration. Jane Walentas worked on the 1922 Philadelphia Toboggan Company machine for over two decades before it reopened in 2011.
Handling notes
Boards are long and thin, and they bend. Carry them on edge, supported along their length. Never stack them flat with ornament face down. Gold leaf rubs off under a thumb, so wear gloves and hold by the back.