Here is a little more info about the East Broad Top Timber Transfer Robin,
The Timber Transfer was built to transfer the lumber from the McKelvey logging operations in Rockhill from narrow gauge cars to standard gauge cars. At the end of logging operations the crane stood unused until the EBT started using it to retruck standard gauge cars with narrow gauge trucks for movement on the EBT. The process formally began in 1933, but it was likely done informally prior to that. With the addition of a cast aluminum coupler adapter the cars could travel normally along the EBT, so long as clearances permitted. Most of the concrete for the Pennsylvania Turnpike's Tuscorora Tunnel traveled down the Shade Gap Branch in this way. Covered hoppers and gondolas made the transition, but most were boxcars.
The crane was construced of a riveted steel i-beam frame on two concrete foundations. At the top of the structure was a hoist which rolled back and forth in the the top enclosure on flanged wheel and rail. The enclosure was simple wood planing coverded with a corregated steel roof. Ot had two unprotected window openings on either side, a peaked roof and no floor. A controler's booth similarly constructed was below the crane enclosure attached on the outside of the west leg. It had a window opening facing the two tracks for the crane operator.
When the crane was pressed into service for retrucking railcars, the crane was reinforced with additional diaganal bracing struts at both the base and between the legs and the craneway. The enclosure was given proper glass windows and was painted "EAST BROD TOP RAILROAD TIMBER TRANSFER". It was als given two gantries on its west side to lift trucks off the track for storage. These were later removed after crews started using two short track spurs that the trucks were wheeled onto. A small office was also added beside the west lig and an old EBT wood frame boxcar was used there for storage, possibly of the coupler adapters.