What is "dogcarts"

Usage examples of "dogcarts".

The two dogcarts that had brought water, food, and lumber had been unloaded and the two-bearhound team of one had been unharnessed and ranged about watchfully.

The omnibuses and cabriolets were all taken, every intersection jammed with rattle-traps and dogcarts, with cursing drivers and panting, black-nostriled horses.